prepare v4 beta releases (#1881)

* major cleanup of middleware module

* update changelog

.appveyor.yml

@@ -1,62 +0,0 @@
-environment:
-  global:
-    PROJECT_NAME: actix
-  matrix:
-    # Stable channel
-    - TARGET: i686-pc-windows-gnu
-      CHANNEL: 1.24.0
-    - TARGET: i686-pc-windows-msvc
-      CHANNEL: 1.24.0
-    - TARGET: x86_64-pc-windows-gnu
-      CHANNEL: 1.24.0
-    - TARGET: x86_64-pc-windows-msvc
-      CHANNEL: 1.24.0
-    # Stable channel
-    - TARGET: i686-pc-windows-gnu
-      CHANNEL: stable
-    - TARGET: i686-pc-windows-msvc
-      CHANNEL: stable
-    - TARGET: x86_64-pc-windows-gnu
-      CHANNEL: stable
-    - TARGET: x86_64-pc-windows-msvc
-      CHANNEL: stable
-    # Beta channel
-    - TARGET: i686-pc-windows-gnu
-      CHANNEL: beta
-    - TARGET: i686-pc-windows-msvc
-      CHANNEL: beta
-    - TARGET: x86_64-pc-windows-gnu
-      CHANNEL: beta
-    - TARGET: x86_64-pc-windows-msvc
-      CHANNEL: beta
-    # Nightly channel
-    - TARGET: i686-pc-windows-gnu
-      CHANNEL: nightly
-    - TARGET: i686-pc-windows-msvc
-      CHANNEL: nightly
-    - TARGET: x86_64-pc-windows-gnu
-      CHANNEL: nightly
-    - TARGET: x86_64-pc-windows-msvc
-      CHANNEL: nightly
-
-# Install Rust and Cargo
-# (Based on from https://github.com/rust-lang/libc/blob/master/appveyor.yml)
-install:
-  - ps: >-
-        If ($Env:TARGET -eq 'x86_64-pc-windows-gnu') {
-           $Env:PATH += ';C:\msys64\mingw64\bin'
-        } ElseIf ($Env:TARGET -eq 'i686-pc-windows-gnu') {
-           $Env:PATH += ';C:\MinGW\bin'
-        }
-  - curl -sSf -o rustup-init.exe https://win.rustup.rs
-  - rustup-init.exe --default-host %TARGET% --default-toolchain %CHANNEL% -y
-  - set PATH=%PATH%;C:\Users\appveyor\.cargo\bin
-  - rustc -Vv
-  - cargo -V
-
-# 'cargo test' takes care of building for us, so disable Appveyor's build stage.
-build: false
-
-# Equivalent to Travis' `script` phase
-test_script:
-  - cargo test --no-default-features --features="flate2-rust"

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,37 @@
+---
+name: Bug Report
+about: Create a bug report.
+---
+
+Your issue may already be reported!
+Please search on the [Actix Web issue tracker](https://github.com/actix/actix-web/issues) before creating one.
+
+## Expected Behavior
+<!--- If you're describing a bug, tell us what should happen -->
+<!--- If you're suggesting a change/improvement, tell us how it should work -->
+
+## Current Behavior
+<!--- If describing a bug, tell us what happens instead of the expected behavior -->
+<!--- If suggesting a change/improvement, explain the difference from current behavior -->
+
+## Possible Solution
+<!--- Not obligatory, but suggest a fix/reason for the bug, -->
+<!--- or ideas how to implement the addition or change -->
+
+## Steps to Reproduce (for bugs)
+<!--- Provide a link to a live example, or an unambiguous set of steps to -->
+<!--- reproduce this bug. Include code to reproduce, if relevant -->
+1.
+2.
+3.
+4.
+
+## Context
+<!--- How has this issue affected you? What are you trying to accomplish? -->
+<!--- Providing context helps us come up with a solution that is most useful in the real world -->
+
+## Your Environment
+<!--- Include as many relevant details about the environment you experienced the bug in -->
+
+* Rust Version (I.e, output of `rustc -V`):
+* Actix Web Version:

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,15 @@
+blank_issues_enabled: true
+contact_links:
+  - name: GitHub Discussions
+    url: https://github.com/actix/actix-web/discussions
+    about: Actix Web Q&A
+  - name: Gitter chat (actix-web)
+    url: https://gitter.im/actix/actix-web
+    about: Actix Web Q&A
+  - name: Gitter chat (actix)
+    url: https://gitter.im/actix/actix
+    about: Actix (actor framework) Q&A
+  - name: Actix Discord
+    url: https://discord.gg/NWpN5mmg3x
+    about: Actix developer discussion and community chat
+

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,27 @@
+<!-- Thanks for considering contributing actix! -->
+<!-- Please fill out the following to make our reviews easy. -->
+
+## PR Type
+<!-- What kind of change does this PR make? -->
+<!-- Bug Fix / Feature / Refactor / Code Style / Other -->
+INSERT_PR_TYPE
+
+
+## PR Checklist
+Check your PR fulfills the following:
+
+<!-- For draft PRs check the boxes as you complete them. -->
+
+- [ ] Tests for the changes have been added / updated.
+- [ ] Documentation comments have been added / updated.
+- [ ] A changelog entry has been made for the appropriate packages.
+- [ ] Format code with the latest stable rustfmt
+
+
+## Overview
+<!-- Describe the current and new behavior. -->
+<!-- Emphasize any breaking changes. -->
+
+
+<!-- If this PR fixes or closes an issue, reference it here. -->
+<!-- Closes #000 -->

.github/workflows/bench.yml

@@ -0,0 +1,28 @@
+name: Benchmark (Linux)
+
+on:
+  pull_request:
+    types: [opened, synchronize, reopened]
+  push:
+    branches:
+      - master
+
+jobs:
+  check_benchmark:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Install Rust
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: nightly
+          profile: minimal
+          override: true
+
+      - name: Check benchmark
+        uses: actions-rs/cargo@v1
+        with:
+          command: bench
+          args: --bench=server -- --sample-size=15

.github/workflows/clippy-fmt.yml

@@ -0,0 +1,32 @@
+on:
+  pull_request:
+    types: [opened, synchronize, reopened]
+
+name: Clippy and rustfmt Check
+jobs:
+  clippy_check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          components: rustfmt
+          override: true
+      - name: Check with rustfmt
+        uses: actions-rs/cargo@v1
+        with:
+          command: fmt
+          args: --all -- --check
+
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: nightly
+          components: clippy
+          override: true
+      - name: Check with Clippy
+        uses: actions-rs/clippy-check@v1
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          args: --all-features --all --tests

.github/workflows/linux.yml

@@ -0,0 +1,81 @@
+name: CI (Linux)
+
+on:
+  pull_request:
+    types: [opened, synchronize, reopened]
+  push:
+    branches:
+      - master
+
+jobs:
+  build_and_test:
+    strategy:
+      fail-fast: false
+      matrix:
+        version:
+          - 1.46.0 # MSRV
+          - stable
+          - nightly
+
+    name: ${{ matrix.version }} - x86_64-unknown-linux-gnu
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Install ${{ matrix.version }}
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: ${{ matrix.version }}-x86_64-unknown-linux-gnu
+          profile: minimal
+          override: true
+
+      - name: Generate Cargo.lock
+        uses: actions-rs/cargo@v1
+        with:
+          command: generate-lockfile
+      - name: Cache Dependencies
+        uses: Swatinem/rust-cache@v1.0.1
+
+      - name: check build
+        uses: actions-rs/cargo@v1
+        with:
+          command: check
+          args: --all --bins --examples --tests
+
+      - name: tests
+        uses: actions-rs/cargo@v1
+        timeout-minutes: 40
+        with:
+          command: test
+          args: --all --all-features --no-fail-fast -- --nocapture
+
+      - name: tests (actix-http)
+        uses: actions-rs/cargo@v1
+        timeout-minutes: 40
+        with:
+          command: test
+          args: --package=actix-http --no-default-features --features=rustls -- --nocapture
+
+      - name: tests (awc)
+        uses: actions-rs/cargo@v1
+        timeout-minutes: 40
+        with:
+          command: test
+          args: --package=awc --no-default-features --features=rustls -- --nocapture
+
+      - name: Generate coverage file
+        if: matrix.version == 'stable' && github.ref == 'refs/heads/master'
+        run: |
+          cargo install cargo-tarpaulin --vers "^0.13"
+          cargo tarpaulin --out Xml
+      - name: Upload to Codecov
+        if: matrix.version == 'stable' && github.ref == 'refs/heads/master'
+        uses: codecov/codecov-action@v1
+        with:
+          file: cobertura.xml
+
+      - name: Clear the cargo caches
+        run: |
+          cargo install cargo-cache --no-default-features --features ci-autoclean
+          cargo-cache

.github/workflows/macos.yml

@@ -0,0 +1,56 @@
+name: CI (macOS)
+
+on:
+  pull_request:
+    types: [opened, synchronize, reopened]
+  push:
+    branches:
+      - master
+
+jobs:
+  build_and_test:
+    strategy:
+      fail-fast: false
+      matrix:
+        version:
+          - stable
+          - nightly
+
+    name: ${{ matrix.version }} - x86_64-apple-darwin
+    runs-on: macOS-latest
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Install ${{ matrix.version }}
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: ${{ matrix.version }}-x86_64-apple-darwin
+          profile: minimal
+          override: true
+
+      - name: Generate Cargo.lock
+        uses: actions-rs/cargo@v1
+        with:
+          command: generate-lockfile
+      - name: Cache Dependencies
+        uses: Swatinem/rust-cache@v1.0.1
+
+      - name: check build
+        uses: actions-rs/cargo@v1
+        with:
+          command: check
+          args: --all --bins --examples --tests
+
+      - name: tests
+        uses: actions-rs/cargo@v1
+        with:
+          command: test
+          args: --all --all-features --no-fail-fast -- --nocapture
+                --skip=test_h2_content_length
+                --skip=test_reading_deflate_encoding_large_random_rustls
+
+      - name: Clear the cargo caches
+        run: |
+          cargo install cargo-cache --no-default-features --features ci-autoclean
+          cargo-cache

.github/workflows/upload-doc.yml

@@ -0,0 +1,37 @@
+name: Upload documentation
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    if: github.repository == 'actix/actix-web'
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Install Rust
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: nightly-x86_64-unknown-linux-gnu
+          profile: minimal
+          override: true
+
+      - name: check build
+        uses: actions-rs/cargo@v1
+        with:
+          command: doc
+          args: --no-deps --workspace --all-features
+
+      - name: Tweak HTML
+        run: echo "<meta http-equiv=refresh content=0;url=os_balloon/index.html>" > target/doc/index.html
+
+      - name: Deploy to GitHub Pages
+        uses: JamesIves/github-pages-deploy-action@3.7.1
+        with:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          BRANCH: gh-pages
+          FOLDER: target/doc

.github/workflows/windows.yml

@@ -0,0 +1,76 @@
+name: CI (Windows)
+
+on:
+  pull_request:
+    types: [opened, synchronize, reopened]
+  push:
+    branches:
+      - master
+
+env:
+  VCPKGRS_DYNAMIC: 1
+
+jobs:
+  build_and_test:
+    strategy:
+      fail-fast: false
+      matrix:
+        version:
+          - stable
+          - nightly
+
+    name: ${{ matrix.version }} - x86_64-pc-windows-msvc
+    runs-on: windows-latest
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Install ${{ matrix.version }}
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: ${{ matrix.version }}-x86_64-pc-windows-msvc
+          profile: minimal
+          override: true
+
+      - name: Install OpenSSL
+        run: |
+          vcpkg integrate install
+          vcpkg install openssl:x64-windows
+          Copy-Item C:\vcpkg\installed\x64-windows\bin\libcrypto-1_1-x64.dll C:\vcpkg\installed\x64-windows\bin\libcrypto.dll
+          Copy-Item C:\vcpkg\installed\x64-windows\bin\libssl-1_1-x64.dll C:\vcpkg\installed\x64-windows\bin\libssl.dll
+          Get-ChildItem C:\vcpkg\installed\x64-windows\bin
+          Get-ChildItem C:\vcpkg\installed\x64-windows\lib
+
+      - name: Generate Cargo.lock
+        uses: actions-rs/cargo@v1
+        with:
+          command: generate-lockfile
+      - name: Cache Dependencies
+        uses: Swatinem/rust-cache@v1.0.1
+
+      - name: check build
+        uses: actions-rs/cargo@v1
+        with:
+          command: check
+          args: --all --bins --examples --tests
+
+      - name: tests
+        uses: actions-rs/cargo@v1
+        with:
+          command: test
+          args: --all --all-features --no-fail-fast -- --nocapture
+                --skip=test_h2_content_length
+                --skip=test_reading_deflate_encoding_large_random_rustls
+                --skip=test_params
+                --skip=test_simple
+                --skip=test_expect_continue
+                --skip=test_http10_keepalive
+                --skip=test_slow_request
+                --skip=test_connection_force_close
+                --skip=test_connection_server_close
+                --skip=test_connection_wait_queue_force_close
+
+      - name: Clear the cargo caches
+        run: |
+          cargo install cargo-cache --no-default-features --features ci-autoclean
+          cargo-cache

.gitignore

@@ -9,6 +9,10 @@ guide/build/
 *.pid
 *.sock
 *~
+.DS_Store
 
 # These are backup files generated by rustfmt
 **/*.rs.bk
+
+# Configuration directory generated by CLion
+.idea

.travis.yml

@@ -1,55 +0,0 @@
-language: rust
-sudo: false
-dist: trusty
-
-cache:
-  cargo: true
-  apt: true
-
-matrix:
-  include:
-    - rust: 1.24.0
-    - rust: stable
-    - rust: beta
-    - rust: nightly
-  allow_failures:
-    - rust: nightly
-
-env:
-  global:
-    # - RUSTFLAGS="-C link-dead-code"
-    - OPENSSL_VERSION=openssl-1.0.2
-
-before_install:
-  - sudo add-apt-repository -y ppa:0k53d-karl-f830m/openssl
-  - sudo apt-get update -qq
-  - sudo apt-get install -qq libssl-dev libelf-dev libdw-dev cmake gcc binutils-dev libiberty-dev
-
-# Add clippy
-before_script:
-  - export PATH=$PATH:~/.cargo/bin
-
-script:
-  - |
-    if [[ "$TRAVIS_RUST_VERSION" != "beta" ]]; then
-    cargo clean
-    cargo test --features="alpn,tls" -- --nocapture
-    fi
-  - |
-    if [[ "$TRAVIS_RUST_VERSION" == "beta" ]]; then
-    bash <(curl https://raw.githubusercontent.com/xd009642/tarpaulin/master/travis-install.sh)
-    USE_SKEPTIC=1 cargo tarpaulin --out Xml --no-count
-    bash <(curl -s https://codecov.io/bash)
-    echo "Uploaded code coverage"
-    fi
-
-# Upload docs
-after_success:
-  - |
-    if [[ "$TRAVIS_OS_NAME" == "linux" && "$TRAVIS_PULL_REQUEST" = "false" && "$TRAVIS_BRANCH" == "master" && "$TRAVIS_RUST_VERSION" == "stable" ]]; then
-      cargo doc --features "alpn, tls, session" --no-deps &&
-      echo "<meta http-equiv=refresh content=0;url=os_balloon/index.html>" > target/doc/index.html &&
-      git clone https://github.com/davisp/ghp-import.git &&
-      ./ghp-import/ghp_import.py -n -p -f -m "Documentation upload" -r https://"$GH_TOKEN"@github.com/"$TRAVIS_REPO_SLUG.git" target/doc &&
-      echo "Uploaded documentation"
-    fi

CHANGES.md

@@ -1,374 +1,629 @@
 # Changes
 
-## 0.6.7 (2018-05-17)
+## Unreleased - 2021-xx-xx
 
-* Fix compilation with --no-default-features
 
+## 4.0.0-beta.1 - 2021-01-07
+### Added
+* `Compat` middleware enabling generic response body/error type of middlewares like `Logger` and
+  `Compress` to be used in `middleware::Condition` and `Resource`, `Scope` services. [#1865]
 
-## 0.6.6 (2018-05-17)
+### Changed
+* Update `actix-*` dependencies to tokio `1.0` based versions. [#1813]
+* Bumped `rand` to `0.8`.
+* Update `rust-tls` to `0.19`. [#1813]
+* Rename `Handler` to `HandlerService` and rename `Factory` to `Handler`. [#1852]
+* The default `TrailingSlash` is now `Trim`, in line with existing documentation. See migration
+  guide for implications. [#1875]
+* Rename `DefaultHeaders::{content_type => add_content_type}`. [#1875]
+* MSRV is now 1.46.0.
 
-* Panic during middleware execution #226
+### Fixed
+* Added the underlying parse error to `test::read_body_json`'s panic message. [#1812]
 
-* Add support for listen_tls/listen_ssl #224
+### Removed
+* Public modules `middleware::{normalize, err_handlers}`. All necessary middleware structs are now
+  exposed directly by the `middleware` module.
 
-* Implement extractor for `Session`
+[#1812]: https://github.com/actix/actix-web/pull/1812
+[#1813]: https://github.com/actix/actix-web/pull/1813
+[#1852]: https://github.com/actix/actix-web/pull/1852
+[#1865]: https://github.com/actix/actix-web/pull/1865
+[#1875]: https://github.com/actix/actix-web/pull/1875
 
-* Ranges header support for NamedFile #60
 
+## 3.3.2 - 2020-12-01
+### Fixed
+* Removed an occasional `unwrap` on `None` panic in `NormalizePathNormalization`. [#1762]
+* Fix `match_pattern()` returning `None` for scope with empty path resource. [#1798]
+* Increase minimum `socket2` version. [#1803]
 
-## 0.6.5 (2018-05-15)
+[#1762]: https://github.com/actix/actix-web/pull/1762
+[#1798]: https://github.com/actix/actix-web/pull/1798
+[#1803]: https://github.com/actix/actix-web/pull/1803
 
-* Fix error handling during request decoding #222
 
+## 3.3.1 - 2020-11-29
+* Ensure `actix-http` dependency uses same `serde_urlencoded`.
 
-## 0.6.4 (2018-05-11)
 
-* Fix segfault in ServerSettings::get_response_builder()
+## 3.3.0 - 2020-11-25
+### Added
+* Add `Either<A, B>` extractor helper. [#1788]
 
+### Changed
+* Upgrade `serde_urlencoded` to `0.7`. [#1773]
 
-## 0.6.3 (2018-05-10)
+[#1773]: https://github.com/actix/actix-web/pull/1773
+[#1788]: https://github.com/actix/actix-web/pull/1788
 
-* Add `Router::with_async()` method for async handler registration.
 
-* Added error response functions for 501,502,503,504
+## 3.2.0 - 2020-10-30
+### Added
+* Implement `exclude_regex` for Logger middleware. [#1723]
+* Add request-local data extractor `web::ReqData`. [#1748]
+* Add ability to register closure for request middleware logging. [#1749]
+* Add `app_data` to `ServiceConfig`. [#1757]
+* Expose `on_connect` for access to the connection stream before request is handled. [#1754]
 
-* Fix client request timeout handling
+### Changed
+* Updated actix-web-codegen dependency for access to new `#[route(...)]` multi-method macro.
+* Print non-configured `Data<T>` type when attempting extraction. [#1743]
+* Re-export bytes::Buf{Mut} in web module. [#1750]
+* Upgrade `pin-project` to `1.0`.
 
+[#1723]: https://github.com/actix/actix-web/pull/1723
+[#1743]: https://github.com/actix/actix-web/pull/1743
+[#1748]: https://github.com/actix/actix-web/pull/1748
+[#1750]: https://github.com/actix/actix-web/pull/1750
+[#1754]: https://github.com/actix/actix-web/pull/1754
+[#1749]: https://github.com/actix/actix-web/pull/1749
 
-## 0.6.2 (2018-05-09)
 
-* WsWriter trait is optional.
+## 3.1.0 - 2020-09-29
+### Changed
+* Add `TrailingSlash::MergeOnly` behaviour to `NormalizePath`, which allows `NormalizePath`
+  to retain any trailing slashes. [#1695]
+* Remove bound `std::marker::Sized` from `web::Data` to support storing `Arc<dyn Trait>`
+  via `web::Data::from` [#1710]
 
+### Fixed
+* `ResourceMap` debug printing is no longer infinitely recursive. [#1708]
 
-## 0.6.1 (2018-05-08)
+[#1695]: https://github.com/actix/actix-web/pull/1695
+[#1708]: https://github.com/actix/actix-web/pull/1708
+[#1710]: https://github.com/actix/actix-web/pull/1710
 
-* Fix http/2 payload streaming #215
 
-* Fix connector's default `keep-alive` and `lifetime` settings #212
+## 3.0.2 - 2020-09-15
+### Fixed
+* `NormalizePath` when used with `TrailingSlash::Trim` no longer trims the root path "/". [#1678]
 
-* Send `ErrorNotFound` instead of `ErrorBadRequest` when path extractor fails #214
+[#1678]: https://github.com/actix/actix-web/pull/1678
 
-* Allow to exclude certain endpoints from logging #211
 
+## 3.0.1 - 2020-09-13
+### Changed
+* `middleware::normalize::TrailingSlash` enum is now accessible. [#1673]
 
-## 0.6.0 (2018-05-08)
+[#1673]: https://github.com/actix/actix-web/pull/1673
 
-* Add route scopes #202
 
-* Allow to use ssl and non-ssl connections at the same time #206
+## 3.0.0 - 2020-09-11
+* No significant changes from `3.0.0-beta.4`.
 
-* Websocket CloseCode Empty/Status is ambiguous #193
 
-* Add Content-Disposition to NamedFile #204
+## 3.0.0-beta.4 - 2020-09-09
+### Added
+* `middleware::NormalizePath` now has configurable behaviour for either always having a trailing
+  slash, or as the new addition, always trimming trailing slashes. [#1639]
 
-* Allow to access Error's backtrace object
+### Changed
+* Update actix-codec and actix-utils dependencies. [#1634]
+* `FormConfig` and `JsonConfig` configurations are now also considered when set
+  using `App::data`. [#1641]
+* `HttpServer::maxconn` is renamed to the more expressive `HttpServer::max_connections`. [#1655]
+* `HttpServer::maxconnrate` is renamed to the more expressive
+  `HttpServer::max_connection_rate`. [#1655]
 
-* Allow to override files listing renderer for `StaticFiles` #203
+[#1639]: https://github.com/actix/actix-web/pull/1639
+[#1641]: https://github.com/actix/actix-web/pull/1641
+[#1634]: https://github.com/actix/actix-web/pull/1634
+[#1655]: https://github.com/actix/actix-web/pull/1655
 
-* Various extractor usability improvements #207
+## 3.0.0-beta.3 - 2020-08-17
+### Changed
+* Update `rustls` to 0.18
 
 
-## 0.5.6 (2018-04-24)
+## 3.0.0-beta.2 - 2020-08-17
+### Changed
+* `PayloadConfig` is now also considered in `Bytes` and `String` extractors when set
+  using `App::data`. [#1610]
+* `web::Path` now has a public representation: `web::Path(pub T)` that enables
+  destructuring. [#1594]
+* `ServiceRequest::app_data` allows retrieval of non-Data data without splitting into parts to
+  access `HttpRequest` which already allows this. [#1618]
+* Re-export all error types from `awc`. [#1621]
+* MSRV is now 1.42.0.
 
-* Make flate2 crate optional #200
+### Fixed
+* Memory leak of app data in pooled requests. [#1609]
 
+[#1594]: https://github.com/actix/actix-web/pull/1594
+[#1609]: https://github.com/actix/actix-web/pull/1609
+[#1610]: https://github.com/actix/actix-web/pull/1610
+[#1618]: https://github.com/actix/actix-web/pull/1618
+[#1621]: https://github.com/actix/actix-web/pull/1621
 
-## 0.5.5 (2018-04-24)
 
-* Fix panic when Websocket is closed with no error code #191
+## 3.0.0-beta.1 - 2020-07-13
+### Added
+* Re-export `actix_rt::main` as `actix_web::main`.
+* `HttpRequest::match_pattern` and `ServiceRequest::match_pattern` for extracting the matched
+  resource pattern.
+* `HttpRequest::match_name` and `ServiceRequest::match_name` for extracting matched resource name.
 
-* Allow to use rust backend for flate2 crate #199
+### Changed
+* Fix actix_http::h1::dispatcher so it returns when HW_BUFFER_SIZE is reached. Should reduce peak memory consumption during large uploads. [#1550]
+* Migrate cookie handling to `cookie` crate. Actix-web no longer requires `ring` dependency.
+* MSRV is now 1.41.1
 
-## 0.5.4 (2018-04-19)
+### Fixed
+* `NormalizePath` improved consistency when path needs slashes added _and_ removed.
 
-* Add identity service middleware
 
-* Middleware response() is not invoked if there was an error in async handler #187
+## 3.0.0-alpha.3 - 2020-05-21
+### Added
+* Add option to create `Data<T>` from `Arc<T>` [#1509]
 
-* Use Display formatting for InternalError Display implementation #188
+### Changed
+* Resources and Scopes can now access non-overridden data types set on App (or containing scopes) when setting their own data. [#1486]
+* Fix audit issue logging by default peer address [#1485]
+* Bump minimum supported Rust version to 1.40
+* Replace deprecated `net2` crate with `socket2`
 
+[#1485]: https://github.com/actix/actix-web/pull/1485
+[#1509]: https://github.com/actix/actix-web/pull/1509
 
-## 0.5.3 (2018-04-18)
+## [3.0.0-alpha.2] - 2020-05-08
 
-* Impossible to quote slashes in path parameters #182
+### Changed
 
+* `{Resource,Scope}::default_service(f)` handlers now support app data extraction. [#1452]
+* Implement `std::error::Error` for our custom errors [#1422]
+* NormalizePath middleware now appends trailing / so that routes of form /example/ respond to /example requests. [#1433]
+* Remove the `failure` feature and support.
 
-## 0.5.2 (2018-04-16)
+[#1422]: https://github.com/actix/actix-web/pull/1422
+[#1433]: https://github.com/actix/actix-web/pull/1433
+[#1452]: https://github.com/actix/actix-web/pull/1452
+[#1486]: https://github.com/actix/actix-web/pull/1486
 
-* Allow to configure StaticFiles's CpuPool, via static method or env variable
 
-* Add support for custom handling of Json extractor errors #181
+## [3.0.0-alpha.1] - 2020-03-11
 
-* Fix StaticFiles does not support percent encoded paths #177
+### Added
 
-* Fix Client Request with custom Body Stream halting on certain size requests #176
+* Add helper function for creating routes with `TRACE` method guard `web::trace()`
+* Add convenience functions `test::read_body_json()` and `test::TestRequest::send_request()` for testing.
 
+### Changed
 
-## 0.5.1 (2018-04-12)
+* Use `sha-1` crate instead of unmaintained `sha1` crate
+* Skip empty chunks when returning response from a `Stream` [#1308]
+* Update the `time` dependency to 0.2.7
+* Update `actix-tls` dependency to 2.0.0-alpha.1
+* Update `rustls` dependency to 0.17
 
-* Client connector provides stats, `ClientConnector::stats()`
+[#1308]: https://github.com/actix/actix-web/pull/1308
 
-* Fix end-of-stream handling in parse_payload #173
+## [2.0.0] - 2019-12-25
 
-* Fix StaticFiles generate a lot of threads #174
+### Changed
 
+* Rename `HttpServer::start()` to `HttpServer::run()`
 
-## 0.5.0 (2018-04-10)
+* Allow to gracefully stop test server via `TestServer::stop()`
 
-* Type-safe path/query/form parameter handling, using serde #70
+* Allow to specify multi-patterns for resources
 
-* HttpResponse builder's methods  `.body()`, `.finish()`, `.json()`
-  return `HttpResponse` instead of `Result`
+## [2.0.0-rc] - 2019-12-20
 
-* Use more ergonomic `actix_web::Error` instead of `http::Error` for `ClientRequestBuilder::body()`
+### Changed
 
-* Added `signed` and `private` `CookieSessionBackend`s
+* Move `BodyEncoding` to `dev` module #1220
 
-* Added `HttpRequest::resource()`, returns current matched resource
+* Allow to set `peer_addr` for TestRequest #1074
 
-* Added `ErrorHandlers` middleware
+* Make web::Data deref to Arc<T> #1214
 
-* Fix router cannot parse Non-ASCII characters in URL #137
+* Rename `App::register_data()` to `App::app_data()`
 
-* Fix client connection pooling
+* `HttpRequest::app_data<T>()` returns `Option<&T>` instead of `Option<&Data<T>>`
 
-* Fix long client urls #129
+### Fixed
 
-* Fix panic on invalid URL characters #130
+* Fix `AppConfig::secure()` is always false. #1202
 
-* Fix logger request duration calculation #152
 
-* Fix prefix and static file serving #168
+## [2.0.0-alpha.6] - 2019-12-15
 
+### Fixed
 
-## 0.4.10 (2018-03-20)
+* Fixed compilation with default features off
 
-* Use `Error` instead of `InternalError` for `error::ErrorXXXX` methods
+## [2.0.0-alpha.5] - 2019-12-13
 
-* Allow to set client request timeout
+### Added
 
-* Allow to set client websocket handshake timeout
+* Add test server, `test::start()` and `test::start_with()`
 
-* Refactor `TestServer` configuration
+## [2.0.0-alpha.4] - 2019-12-08
 
-* Fix server websockets big payloads support
+### Deleted
 
-* Fix http/2 date header generation
+* Delete HttpServer::run(), it is not useful with async/await
 
+## [2.0.0-alpha.3] - 2019-12-07
 
-## 0.4.9 (2018-03-16)
+### Changed
 
-* Allow to disable http/2 support
+* Migrate to tokio 0.2
 
-* Wake payload reading task when data is available
 
-* Fix server keep-alive handling
+## [2.0.0-alpha.1] - 2019-11-22
 
-* Send Query Parameters in client requests #120
+### Changed
 
-* Move brotli encoding to a feature
+* Migrated to `std::future`
 
-* Add option of default handler for `StaticFiles` handler #57
+* Remove implementation of `Responder` for `()`. (#1167)
 
-* Add basic client connection pooling
 
+## [1.0.9] - 2019-11-14
 
-## 0.4.8 (2018-03-12)
+### Added
 
-* Allow to set read buffer capacity for server request
+* Add `Payload::into_inner` method and make stored `def::Payload` public. (#1110)
 
-* Handle WouldBlock error for socket accept call
+### Changed
 
+* Support `Host` guards when the `Host` header is unset (e.g. HTTP/2 requests) (#1129)
 
-## 0.4.7 (2018-03-11)
 
-* Fix panic on unknown content encoding
+## [1.0.8] - 2019-09-25
 
-* Fix connection get closed too early
+### Added
 
-* Fix streaming response handling for http/2
+* Add `Scope::register_data` and `Resource::register_data` methods, parallel to
+  `App::register_data`.
 
-* Better sleep on error support
+* Add `middleware::Condition` that conditionally enables another middleware
 
+* Allow to re-construct `ServiceRequest` from `HttpRequest` and `Payload`
 
-## 0.4.6 (2018-03-10)
+* Add `HttpServer::listen_uds` for ability to listen on UDS FD rather than path,
+  which is useful for example with systemd.
 
-* Fix client cookie handling
+### Changed
 
-* Fix json content type detection
+* Make UrlEncodedError::Overflow more informative
 
-* Fix CORS middleware #117
+* Use actix-testing for testing utils
 
-* Optimize websockets stream support
 
+## [1.0.7] - 2019-08-29
 
-## 0.4.5 (2018-03-07)
+### Fixed
 
-* Fix compression #103 and #104
+* Request Extensions leak #1062
 
-* Fix client cookie handling #111
 
-* Non-blocking processing of a `NamedFile`
+## [1.0.6] - 2019-08-28
 
-* Enable compression support for `NamedFile`
+### Added
 
-* Better support for `NamedFile` type
+* Re-implement Host predicate (#989)
 
-* Add `ResponseError` impl for `SendRequestError`. This improves ergonomics of the client.
+* Form implements Responder, returning a `application/x-www-form-urlencoded` response
 
-* Add native-tls support for client
+* Add `into_inner` to `Data`
 
-* Allow client connection timeout to be set #108
+* Add `test::TestRequest::set_form()` convenience method to automatically serialize data and set
+  the header in test requests.
 
-* Allow to use std::net::TcpListener for HttpServer
+### Changed
 
-* Handle panics in worker threads
+* `Query` payload made `pub`. Allows user to pattern-match the payload.
 
+* Enable `rust-tls` feature for client #1045
 
-## 0.4.4 (2018-03-04)
+* Update serde_urlencoded to 0.6.1
 
-* Allow to use Arc<Vec<u8>> as response/request body
+* Update url to 2.1
 
-* Fix handling of requests with an encoded body with a length > 8192 #93
 
-## 0.4.3 (2018-03-03)
+## [1.0.5] - 2019-07-18
 
-* Fix request body read bug
+### Added
 
-* Fix segmentation fault #79
+* Unix domain sockets (HttpServer::bind_uds) #92
 
-* Set reuse address before bind #90
+* Actix now logs errors resulting in "internal server error" responses always, with the `error`
+  logging level
 
+### Fixed
 
-## 0.4.2 (2018-03-02)
+* Restored logging of errors through the `Logger` middleware
 
-* Better naming for websockets implementation
 
-* Add `Pattern::with_prefix()`, make it more usable outside of actix
+## [1.0.4] - 2019-07-17
 
-* Add csrf middleware for filter for cross-site request forgery #89
+### Added
 
-* Fix disconnect on idle connections
+* Add `Responder` impl for `(T, StatusCode) where T: Responder`
 
+* Allow to access app's resource map via
+  `ServiceRequest::resource_map()` and `HttpRequest::resource_map()` methods.
 
-## 0.4.1 (2018-03-01)
+### Changed
 
-* Rename `Route::p()` to `Route::filter()`
+* Upgrade `rand` dependency version to 0.7
 
-* Better naming for http codes
 
-* Fix payload parse in situation when socket data is not ready.
+## [1.0.3] - 2019-06-28
 
-* Fix Session mutable borrow lifetime #87
+### Added
 
+* Support asynchronous data factories #850
 
-## 0.4.0 (2018-02-28)
+### Changed
 
-* Actix 0.5 compatibility
+*  Use `encoding_rs` crate instead of unmaintained `encoding` crate
 
-* Fix request json/urlencoded loaders
 
-* Simplify HttpServer type definition
+## [1.0.2] - 2019-06-17
 
-* Added HttpRequest::encoding() method
+### Changed
 
-* Added HttpRequest::mime_type() method
+* Move cors middleware to `actix-cors` crate.
 
-* Added HttpRequest::uri_mut(), allows to modify request uri
+* Move identity middleware to `actix-identity` crate.
 
-* Added StaticFiles::index_file()
 
-* Added http client
+## [1.0.1] - 2019-06-17
 
-* Added websocket client
+### Added
 
-* Added TestServer::ws(), test websockets client
+* Add support for PathConfig #903
 
-* Added TestServer http client support
+* Add `middleware::identity::RequestIdentity` trait to `get_identity` from `HttpMessage`.
 
-* Allow to override content encoding on application level
+### Changed
 
+* Move cors middleware to `actix-cors` crate.
 
-## 0.3.3 (2018-01-25)
+* Move identity middleware to `actix-identity` crate.
 
-* Stop processing any events after context stop
+* Disable default feature `secure-cookies`.
 
-* Re-enable write back-pressure for h1 connections
+* Allow to test an app that uses async actors #897
 
-* Refactor HttpServer::start_ssl() method
+* Re-apply patch from #637 #894
 
-* Upgrade openssl to 0.10
+### Fixed
 
+* HttpRequest::url_for is broken with nested scopes #915
 
-## 0.3.2 (2018-01-21)
 
-* Fix HEAD requests handling
+## [1.0.0] - 2019-06-05
 
-* Log request processing errors
+### Added
 
-* Always enable content encoding if encoding explicitly selected
+* Add `Scope::configure()` method.
 
-* Allow multiple Applications on a single server with different state #49
+* Add `ServiceRequest::set_payload()` method.
 
-* CORS middleware: allowed_headers is defaulting to None #50
+* Add `test::TestRequest::set_json()` convenience method to automatically
+  serialize data and set header in test requests.
 
+* Add macros for head, options, trace, connect and patch http methods
 
-## 0.3.1 (2018-01-13)
+### Changed
 
-* Fix directory entry path #47
+* Drop an unnecessary `Option<_>` indirection around `ServerBuilder` from `HttpServer`. #863
 
-* Do not enable chunked encoding for HTTP/1.0
+### Fixed
 
-* Allow explicitly disable chunked encoding
+* Fix Logger request time format, and use rfc3339. #867
 
+* Clear http requests pool on app service drop #860
 
-## 0.3.0 (2018-01-12)
 
-* HTTP/2 Support
+## [1.0.0-rc] - 2019-05-18
 
-* Refactor streaming responses
+### Add
 
-* Refactor error handling
+* Add `Query<T>::from_query()` to extract parameters from a query string. #846
+* `QueryConfig`, similar to `JsonConfig` for customizing error handling of query extractors.
 
-* Asynchronous middlewares
+### Changed
 
-* Refactor logger middleware
+* `JsonConfig` is now `Send + Sync`, this implies that `error_handler` must be `Send + Sync` too.
 
-* Content compression/decompression (br, gzip, deflate)
+### Fixed
 
-* Server multi-threading
+* Codegen with parameters in the path only resolves the first registered endpoint #841
 
-* Gracefull shutdown support
 
+## [1.0.0-beta.4] - 2019-05-12
 
-## 0.2.1 (2017-11-03)
+### Add
 
-* Allow to start tls server with `HttpServer::serve_tls`
+* Allow to set/override app data on scope level
 
-* Export `Frame` enum
+### Changed
 
-* Add conversion impl from `HttpResponse` and `BinaryBody` to a `Frame`
+* `App::configure` take an `FnOnce` instead of `Fn`
+* Upgrade actix-net crates
 
 
-## 0.2.0 (2017-10-30)
+## [1.0.0-beta.3] - 2019-05-04
 
-* Do not use `http::Uri` as it can not parse some valid paths
+### Added
 
-* Refactor response `Body`
+* Add helper function for executing futures `test::block_fn()`
 
-* Refactor `RouteRecognizer` usability
+### Changed
 
-* Refactor `HttpContext::write`
+* Extractor configuration could be registered with `App::data()`
+  or with `Resource::data()` #775
 
-* Refactor `Payload` stream
+* Route data is unified with app data, `Route::data()` moved to resource
+  level to `Resource::data()`
 
-* Re-use `BinaryBody` for `Frame::Payload`
+* CORS handling without headers #702
 
-* Stop http actor on `write_eof`
+* Allow to construct `Data` instances to avoid double `Arc` for `Send + Sync` types.
 
-* Fix disconnection handling.
+### Fixed
 
+* Fix `NormalizePath` middleware impl #806
 
-## 0.1.0 (2017-10-23)
+### Deleted
 
-* First release
+* `App::data_factory()` is deleted.
+
+
+## [1.0.0-beta.2] - 2019-04-24
+
+### Added
+
+* Add raw services support via `web::service()`
+
+* Add helper functions for reading response body `test::read_body()`
+
+* Add support for `remainder match` (i.e "/path/{tail}*")
+
+* Extend `Responder` trait, allow to override status code and headers.
+
+* Store visit and login timestamp in the identity cookie #502
+
+### Changed
+
+* `.to_async()` handler can return `Responder` type #792
+
+### Fixed
+
+* Fix async web::Data factory handling
+
+
+## [1.0.0-beta.1] - 2019-04-20
+
+### Added
+
+* Add helper functions for reading test response body,
+ `test::read_response()` and test::read_response_json()`
+
+* Add `.peer_addr()` #744
+
+* Add `NormalizePath` middleware
+
+### Changed
+
+* Rename `RouterConfig` to `ServiceConfig`
+
+* Rename `test::call_success` to `test::call_service`
+
+* Removed `ServiceRequest::from_parts()` as it is unsafe to create from parts.
+
+* `CookieIdentityPolicy::max_age()` accepts value in seconds
+
+### Fixed
+
+* Fixed `TestRequest::app_data()`
+
+
+## [1.0.0-alpha.6] - 2019-04-14
+
+### Changed
+
+* Allow to use any service as default service.
+
+* Remove generic type for request payload, always use default.
+
+* Removed `Decompress` middleware. Bytes, String, Json, Form extractors
+  automatically decompress payload.
+
+* Make extractor config type explicit. Add `FromRequest::Config` associated type.
+
+
+## [1.0.0-alpha.5] - 2019-04-12
+
+### Added
+
+* Added async io `TestBuffer` for testing.
+
+### Deleted
+
+* Removed native-tls support
+
+
+## [1.0.0-alpha.4] - 2019-04-08
+
+### Added
+
+* `App::configure()` allow to offload app configuration to different methods
+
+* Added `URLPath` option for logger
+
+* Added `ServiceRequest::app_data()`, returns `Data<T>`
+
+* Added `ServiceFromRequest::app_data()`, returns `Data<T>`
+
+### Changed
+
+* `FromRequest` trait refactoring
+
+* Move multipart support to actix-multipart crate
+
+### Fixed
+
+* Fix body propagation in Response::from_error. #760
+
+
+## [1.0.0-alpha.3] - 2019-04-02
+
+### Changed
+
+* Renamed `TestRequest::to_service()` to `TestRequest::to_srv_request()`
+
+* Renamed `TestRequest::to_response()` to `TestRequest::to_srv_response()`
+
+* Removed `Deref` impls
+
+### Removed
+
+* Removed unused `actix_web::web::md()`
+
+
+## [1.0.0-alpha.2] - 2019-03-29
+
+### Added
+
+* rustls support
+
+### Changed
+
+* use forked cookie
+
+* multipart::Field renamed to MultipartField
+
+## [1.0.0-alpha.1] - 2019-03-28
+
+### Changed
+
+* Complete architecture re-design.
+
+* Return 405 response if no matching route found within resource #538

CODE_OF_CONDUCT.md

@@ -34,10 +34,13 @@ This Code of Conduct applies both within project spaces and in public spaces whe
 
 ## Enforcement
 
-Instances of abusive, harassing, or otherwise unacceptable behavior may be reported by contacting the project team at fafhrd91@gmail.com. The project team will review and investigate all complaints, and will respond in a way that it deems appropriate to the circumstances. The project team is obligated to maintain confidentiality with regard to the reporter of an incident. Further details of specific enforcement policies may be posted separately.
+Instances of abusive, harassing, or otherwise unacceptable behavior may be reported by contacting the project team at robjtede@icloud.com ([@robjtede]) or huyuumi@neet.club ([@JohnTitor]). The project team will review and investigate all complaints, and will respond in a way that it deems appropriate to the circumstances. The project team is obligated to maintain confidentiality with regard to the reporter of an incident. Further details of specific enforcement policies may be posted separately.
 
 Project maintainers who do not follow or enforce the Code of Conduct in good faith may face temporary or permanent repercussions as determined by other members of the project's leadership.
 
+[@robjtede]: https://github.com/robjtede
+[@JohnTitor]: https://github.com/JohnTitor
+
 ## Attribution
 
 This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4, available at [http://contributor-covenant.org/version/1/4][version]

Cargo.toml

@@ -1,116 +1,141 @@
 [package]
 name = "actix-web"
-version = "0.6.7"
+version = "4.0.0-beta.1"
 authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
-description = "Actix web is a simple, pragmatic and extremely fast web framework for Rust."
+description = "Actix Web is a powerful, pragmatic, and extremely fast web framework for Rust"
 readme = "README.md"
-keywords = ["http", "web", "framework", "async", "futures"]
-homepage = "https://github.com/actix/actix-web"
+keywords = ["actix", "http", "web", "framework", "async"]
+homepage = "https://actix.rs"
 repository = "https://github.com/actix/actix-web.git"
 documentation = "https://docs.rs/actix-web/"
 categories = ["network-programming", "asynchronous",
               "web-programming::http-server",
-              "web-programming::http-client",
               "web-programming::websocket"]
-license = "MIT/Apache-2.0"
-exclude = [".gitignore", ".travis.yml", ".cargo/config", "appveyor.yml"]
-build = "build.rs"
+license = "MIT OR Apache-2.0"
+edition = "2018"
+
+[package.metadata.docs.rs]
+features = ["openssl", "rustls", "compress", "secure-cookies"]
 
 [badges]
 travis-ci = { repository = "actix/actix-web", branch = "master" }
-appveyor = { repository = "fafhrd91/actix-web-hdy9d" }
 codecov = { repository = "actix/actix-web", branch = "master", service = "github" }
 
 [lib]
 name = "actix_web"
 path = "src/lib.rs"
 
-[features]
-default = ["session", "brotli", "flate2-c"]
+[workspace]
+members = [
+  ".",
+  "awc",
+  "actix-http",
+  "actix-files",
+  "actix-multipart",
+  "actix-web-actors",
+  "actix-web-codegen",
+  "actix-http-test",
+]
 
-# tls
-tls = ["native-tls", "tokio-tls"]
+[features]
+default = ["compress"]
+
+# content-encoding support
+compress = ["actix-http/compress", "awc/compress"]
+
+# sessions feature
+secure-cookies = ["actix-http/secure-cookies"]
 
 # openssl
-alpn = ["openssl", "tokio-openssl"]
+openssl = ["actix-tls/accept", "actix-tls/openssl", "awc/openssl", "open-ssl"]
 
-# sessions feature, session require "ring" crate and c compiler
-session = ["cookie/secure"]
+# rustls
+rustls = ["actix-tls/accept", "actix-tls/rustls", "awc/rustls", "rust-tls"]
 
-# brotli encoding, requires c compiler
-brotli = ["brotli2"]
+[[example]]
+name = "basic"
+required-features = ["compress"]
 
-# miniz-sys backend for flate2 crate
-flate2-c = ["flate2/miniz-sys"]
+[[example]]
+name = "uds"
+required-features = ["compress"]
 
-# rust backend for flate2 crate
-flate2-rust = ["flate2/rust_backend"]
+[[test]]
+name = "test_server"
+required-features = ["compress"]
+
+[[example]]
+name = "on_connect"
+required-features = []
+
+[[example]]
+name = "client"
+required-features = ["rustls"]
 
 [dependencies]
-actix = "^0.5.5"
+actix-codec = "0.4.0-beta.1"
+actix-macros = "0.1.0"
+actix-router = "0.2.4"
+actix-rt = "2.0.0-beta.1"
+actix-server = "2.0.0-beta.2"
+actix-service = "2.0.0-beta.2"
+actix-utils = "3.0.0-beta.1"
+actix-threadpool = "0.3.1"
+actix-tls = { version = "3.0.0-beta.2", default-features = false, optional = true }
 
-base64 = "0.9"
-bitflags = "1.0"
-failure = "0.1.1"
-h2 = "0.1"
-http = "^0.1.5"
-httparse = "1.2"
-http-range = "0.1"
-libc = "0.2"
+actix-web-codegen = "0.4.0"
+actix-http = "3.0.0-beta.1"
+awc = { version = "3.0.0-beta.1", default-features = false }
+
+ahash = "0.6"
+bytes = "1"
+derive_more = "0.99.5"
+encoding_rs = "0.8"
+futures-core = { version = "0.3.7", default-features = false }
+futures-util = { version = "0.3.7", default-features = false }
 log = "0.4"
 mime = "0.3"
-mime_guess = "2.0.0-alpha"
-num_cpus = "1.0"
-percent-encoding = "1.0"
-rand = "0.4"
-regex = "1.0"
-serde = "1.0"
+socket2 = "0.3.16"
+pin-project = "1.0.0"
+regex = "1.4"
+serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
-serde_urlencoded = "0.5"
-sha1 = "0.6"
-smallvec = "0.6"
-time = "0.1"
-encoding = "0.2"
-language-tags = "0.2"
-lazy_static = "1.0"
-url = { version="1.7", features=["query_encoding"] }
-cookie = { version="0.10", features=["percent-encode"] }
-brotli2 = { version="^0.3.2", optional = true }
-flate2 = { version="1.0", optional = true, default-features = false }
-
-# io
-mio = "^0.6.13"
-net2 = "0.2"
-bytes = "0.4"
-byteorder = "1"
-futures = "0.1"
-futures-cpupool = "0.1"
-slab = "0.4"
-tokio-io = "0.1"
-tokio-core = "0.1"
-
-# native-tls
-native-tls = { version="0.1", optional = true }
-tokio-tls = { version="0.1", optional = true }
-
-# openssl
-openssl = { version="0.10", optional = true }
-tokio-openssl = { version="0.2", optional = true }
+serde_urlencoded = "0.7"
+time = { version = "0.2.7", default-features = false, features = ["std"] }
+url = "2.1"
+open-ssl = { package = "openssl", version = "0.10", optional = true }
+rust-tls = { package = "rustls", version = "0.19.0", optional = true }
+smallvec = "1.6"
 
 [dev-dependencies]
-env_logger = "0.5"
+actix = "0.11.0-beta.1"
+actix-http = { version = "3.0.0-beta.1", features = ["actors"] }
+rand = "0.8"
+env_logger = "0.8"
 serde_derive = "1.0"
-
-[build-dependencies]
-version_check = "0.1"
+brotli2 = "0.3.2"
+flate2 = "1.0.13"
+criterion = "0.3"
 
 [profile.release]
 lto = true
 opt-level = 3
 codegen-units = 1
 
-[workspace]
-members = [
-  "./",
-  "tools/wsload/",
-]
+[patch.crates-io]
+actix-web = { path = "." }
+actix-http = { path = "actix-http" }
+actix-http-test = { path = "actix-http-test" }
+actix-web-actors = { path = "actix-web-actors" }
+actix-web-codegen = { path = "actix-web-codegen" }
+actix-multipart = { path = "actix-multipart" }
+actix-files = { path = "actix-files" }
+awc = { path = "awc" }
+
+[[bench]]
+name = "server"
+harness = false
+
+[[bench]]
+name = "service"
+harness = false

LICENSE-APACHE

@@ -186,7 +186,7 @@
       same "printed page" as the copyright notice for easier
       identification within third-party archives.
 
-   Copyright 2017-NOW Nikolay Kim
+   Copyright 2017-NOW Actix Team
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.

LICENSE-MIT

@@ -1,4 +1,4 @@
-Copyright (c) 2017 Nikolay Kim
+Copyright (c) 2017 Actix Team
 
 Permission is hereby granted, free of charge, to any
 person obtaining a copy of this software and associated

MIGRATION.md

@@ -1,4 +1,584 @@
-## Migration from 0.5 to 0.6
+## Unreleased
+
+* The default `NormalizePath` behavior now strips trailing slashes by default. This was
+  previously documented to be the case in v3 but the behavior now matches. The effect is that
+  routes defined with trailing slashes will become inaccessible when
+  using `NormalizePath::default()`.
+  
+  Before: `#[get("/test/")`  
+  After: `#[get("/test")`  
+
+  Alternatively, explicitly require trailing slashes: `NormalizePath::new(TrailingSlash::Always)`.
+
+
+## 3.0.0
+
+* The return type for `ServiceRequest::app_data::<T>()` was changed from returning a `Data<T>` to
+  simply a `T`. To access a `Data<T>` use `ServiceRequest::app_data::<Data<T>>()`.
+
+* Cookie handling has been offloaded to the `cookie` crate:
+  * `USERINFO_ENCODE_SET` is no longer exposed. Percent-encoding is still supported; check docs.
+  * Some types now require lifetime parameters.
+
+* The time crate was updated to `v0.2`, a major breaking change to the time crate, which affects
+  any `actix-web` method previously expecting a time v0.1 input.
+
+* Setting a cookie's SameSite property, explicitly, to `SameSite::None` will now
+  result in `SameSite=None` being sent with the response Set-Cookie header.
+  To create a cookie without a SameSite attribute, remove any calls setting same_site.
+
+* actix-http support for Actors messages was moved to actix-http crate and is enabled 
+  with feature `actors`
+
+* content_length function is removed from actix-http.
+  You can set Content-Length by normally setting the response body or calling no_chunking function. 
+
+* `BodySize::Sized64` variant has been removed. `BodySize::Sized` now receives a
+  `u64` instead of a `usize`.
+
+* Code that was using `path.<index>` to access a `web::Path<(A, B, C)>`s elements now needs to use
+  destructuring or `.into_inner()`. For example:
+
+  ```rust
+  // Previously:
+  async fn some_route(path: web::Path<(String, String)>) -> String {
+    format!("Hello, {} {}", path.0, path.1)
+  }
+
+  // Now (this also worked before):
+  async fn some_route(path: web::Path<(String, String)>) -> String {
+    let (first_name, last_name) = path.into_inner();
+    format!("Hello, {} {}", first_name, last_name)
+  }
+  // Or (this wasn't previously supported):
+  async fn some_route(web::Path((first_name, last_name)): web::Path<(String, String)>) -> String {
+    format!("Hello, {} {}", first_name, last_name)
+  }
+  ```
+
+* `middleware::NormalizePath` can now also be configured to trim trailing slashes instead of always keeping one.
+  It will need `middleware::normalize::TrailingSlash` when being constructed with `NormalizePath::new(...)`,
+  or for an easier migration you can replace `wrap(middleware::NormalizePath)` with `wrap(middleware::NormalizePath::new(TrailingSlash::MergeOnly))`.
+
+* `HttpServer::maxconn` is renamed to the more expressive `HttpServer::max_connections`.
+
+* `HttpServer::maxconnrate` is renamed to the more expressive `HttpServer::max_connection_rate`.
+
+
+## 2.0.0
+
+* `HttpServer::start()` renamed to `HttpServer::run()`. It also possible to
+  `.await` on `run` method result, in that case it awaits server exit.
+
+* `App::register_data()` renamed to `App::app_data()` and accepts any type `T: 'static`.
+  Stored data is available via `HttpRequest::app_data()` method at runtime.
+
+* Extractor configuration must be registered with `App::app_data()` instead of `App::data()`
+
+* Sync handlers has been removed. `.to_async()` method has been renamed to `.to()`
+  replace `fn` with `async fn` to convert sync handler to async
+
+* `actix_http_test::TestServer` moved to `actix_web::test` module. To start
+  test server use `test::start()` or `test_start_with_config()` methods
+
+* `ResponseError` trait has been reafctored. `ResponseError::error_response()` renders
+  http response.
+
+* Feature `rust-tls` renamed to `rustls`
+
+  instead of
+
+    ```rust
+    actix-web = { version = "2.0.0", features = ["rust-tls"] }
+    ```
+
+  use
+
+    ```rust
+    actix-web = { version = "2.0.0", features = ["rustls"] }
+    ```
+
+* Feature `ssl` renamed to `openssl`
+
+  instead of
+
+    ```rust
+    actix-web = { version = "2.0.0", features = ["ssl"] }
+    ```
+
+  use
+
+    ```rust
+    actix-web = { version = "2.0.0", features = ["openssl"] }
+    ```
+* `Cors` builder now requires that you call `.finish()` to construct the middleware
+
+## 1.0.1
+
+* Cors middleware has been moved to `actix-cors` crate
+
+  instead of
+
+  ```rust
+  use actix_web::middleware::cors::Cors;
+  ```
+
+  use
+
+  ```rust
+  use actix_cors::Cors;
+  ```
+
+* Identity middleware has been moved to `actix-identity` crate
+
+  instead of
+
+  ```rust
+  use actix_web::middleware::identity::{Identity, CookieIdentityPolicy, IdentityService};
+  ```
+
+  use
+
+  ```rust
+  use actix_identity::{Identity, CookieIdentityPolicy, IdentityService};
+  ```
+
+
+## 1.0.0
+
+* Extractor configuration. In version 1.0 this is handled with the new `Data` mechanism for both setting and retrieving the configuration
+
+  instead of
+
+  ```rust
+
+  #[derive(Default)]
+  struct ExtractorConfig {
+     config: String,
+  }
+
+  impl FromRequest for YourExtractor {
+     type Config = ExtractorConfig;
+     type Result = Result<YourExtractor, Error>;
+
+     fn from_request(req: &HttpRequest, cfg: &Self::Config) -> Self::Result {
+         println!("use the config: {:?}", cfg.config);
+         ...
+     }
+  }
+
+  App::new().resource("/route_with_config", |r| {
+     r.post().with_config(handler_fn, |cfg| {
+         cfg.0.config = "test".to_string();
+     })
+  })
+
+  ```
+
+  use the HttpRequest to get the configuration like any other `Data` with `req.app_data::<C>()` and set it with the `data()` method on the `resource`
+
+  ```rust
+  #[derive(Default)]
+  struct ExtractorConfig {
+     config: String,
+  }
+
+  impl FromRequest for YourExtractor {
+     type Error = Error;
+     type Future = Result<Self, Self::Error>;
+     type Config = ExtractorConfig;
+
+     fn from_request(req: &HttpRequest, payload: &mut Payload) -> Self::Future {
+         let cfg = req.app_data::<ExtractorConfig>();
+         println!("config data?: {:?}", cfg.unwrap().role);
+         ...
+     }
+  }
+
+  App::new().service(
+     resource("/route_with_config")
+         .data(ExtractorConfig {
+             config: "test".to_string(),
+         })
+         .route(post().to(handler_fn)),
+  )
+  ```
+
+* Resource registration. 1.0 version uses generalized resource
+  registration via `.service()` method.
+
+  instead of
+
+  ```rust
+    App.new().resource("/welcome", |r| r.f(welcome))
+  ```
+
+  use App's or Scope's `.service()` method. `.service()` method accepts
+  object that implements `HttpServiceFactory` trait. By default
+  actix-web provides `Resource` and `Scope` services.
+
+  ```rust
+    App.new().service(
+        web::resource("/welcome")
+            .route(web::get().to(welcome))
+            .route(web::post().to(post_handler))
+  ```
+
+* Scope registration.
+
+  instead of
+
+  ```rust
+      let app = App::new().scope("/{project_id}", |scope| {
+            scope
+                .resource("/path1", |r| r.f(|_| HttpResponse::Ok()))
+                .resource("/path2", |r| r.f(|_| HttpResponse::Ok()))
+                .resource("/path3", |r| r.f(|_| HttpResponse::MethodNotAllowed()))
+      });
+  ```
+
+  use `.service()` for registration and `web::scope()` as scope object factory.
+
+  ```rust
+      let app = App::new().service(
+          web::scope("/{project_id}")
+              .service(web::resource("/path1").to(|| HttpResponse::Ok()))
+              .service(web::resource("/path2").to(|| HttpResponse::Ok()))
+              .service(web::resource("/path3").to(|| HttpResponse::MethodNotAllowed()))
+      );
+  ```
+
+* `.with()`, `.with_async()` registration methods have been renamed to `.to()` and `.to_async()`.
+
+  instead of
+
+  ```rust
+    App.new().resource("/welcome", |r| r.with(welcome))
+  ```
+
+  use `.to()` or `.to_async()` methods
+
+  ```rust
+    App.new().service(web::resource("/welcome").to(welcome))
+  ```
+
+* Passing arguments to handler with extractors, multiple arguments are allowed
+
+  instead of
+
+  ```rust
+  fn welcome((body, req): (Bytes, HttpRequest)) -> ... {
+    ...
+  }
+  ```
+
+  use multiple arguments
+
+  ```rust
+  fn welcome(body: Bytes, req: HttpRequest) -> ... {
+    ...
+  }
+  ```
+
+* `.f()`, `.a()` and `.h()` handler registration methods have been removed.
+  Use `.to()` for handlers and `.to_async()` for async handlers. Handler function
+  must use extractors.
+
+  instead of
+
+  ```rust
+    App.new().resource("/welcome", |r| r.f(welcome))
+  ```
+
+  use App's `to()` or `to_async()` methods
+
+  ```rust
+    App.new().service(web::resource("/welcome").to(welcome))
+  ```
+
+* `HttpRequest` does not provide access to request's payload stream.
+
+  instead of
+
+  ```rust
+  fn index(req: &HttpRequest) -> Box<Future<Item=HttpResponse, Error=Error>> {
+    req
+       .payload()
+       .from_err()
+       .fold((), |_, chunk| {
+            ...
+        })
+       .map(|_| HttpResponse::Ok().finish())
+       .responder()
+  }
+  ```
+
+  use `Payload` extractor
+
+  ```rust
+  fn index(stream: web::Payload) -> impl Future<Item=HttpResponse, Error=Error> {
+     stream
+       .from_err()
+       .fold((), |_, chunk| {
+            ...
+        })
+       .map(|_| HttpResponse::Ok().finish())
+  }
+  ```
+
+* `State` is now `Data`.  You register Data during the App initialization process
+  and then access it from handlers either using a Data extractor or using
+  HttpRequest's api.
+
+  instead of
+
+  ```rust
+    App.with_state(T)
+  ```
+
+  use App's `data` method
+
+  ```rust
+	App.new()
+       .data(T)
+  ```
+
+  and either use the Data extractor within your handler
+
+  ```rust
+    use actix_web::web::Data;
+
+	fn endpoint_handler(Data<T>)){
+      ...
+    }
+  ```
+
+  .. or access your Data element from the HttpRequest
+
+  ```rust
+	fn endpoint_handler(req: HttpRequest) {
+		let data: Option<Data<T>> = req.app_data::<T>();
+    }
+  ```
+
+
+* AsyncResponder is removed, use `.to_async()` registration method and `impl Future<>` as result type.
+
+  instead of
+
+  ```rust
+	use actix_web::AsyncResponder;
+
+    fn endpoint_handler(...) -> impl Future<Item=HttpResponse, Error=Error>{
+		...
+        .responder()
+	}
+  ```
+
+  .. simply omit AsyncResponder and the corresponding responder() finish method
+
+
+* Middleware
+
+  instead of
+
+  ```rust
+      let app = App::new()
+           .middleware(middleware::Logger::default())
+  ```
+
+  use `.wrap()` method
+
+  ```rust
+      let app = App::new()
+           .wrap(middleware::Logger::default())
+           .route("/index.html", web::get().to(index));
+  ```
+
+* `HttpRequest::body()`, `HttpRequest::urlencoded()`, `HttpRequest::json()`, `HttpRequest::multipart()`
+  method have been removed. Use `Bytes`, `String`, `Form`, `Json`, `Multipart` extractors instead.
+
+  instead of
+
+  ```rust
+  fn index(req: &HttpRequest) -> Responder {
+     req.body()
+       .and_then(|body| {
+          ...
+       })
+  }
+  ```
+
+  use
+
+  ```rust
+  fn index(body: Bytes) -> Responder {
+     ...
+  }
+  ```
+
+* `actix_web::server` module has been removed. To start http server use `actix_web::HttpServer` type
+
+* StaticFiles and NamedFile have been moved to a separate crate.
+
+  instead of `use actix_web::fs::StaticFile`
+
+  use `use actix_files::Files`
+
+  instead of `use actix_web::fs::Namedfile`
+
+  use `use actix_files::NamedFile`
+
+* Multipart has been moved to a separate crate.
+
+  instead of `use actix_web::multipart::Multipart`
+
+  use `use actix_multipart::Multipart`
+
+* Response compression is not enabled by default.
+  To enable, use `Compress` middleware, `App::new().wrap(Compress::default())`.
+
+* Session middleware moved to actix-session crate
+
+* Actors support have been moved to `actix-web-actors` crate
+
+* Custom Error
+
+  Instead of error_response method alone, ResponseError now provides two methods: error_response and render_response respectively. Where, error_response creates the error response and render_response returns the error response to the caller. 
+
+  Simplest migration from 0.7 to 1.0 shall include below method to the custom implementation of ResponseError:
+
+  ```rust
+  fn render_response(&self) -> HttpResponse {
+    self.error_response()
+  }
+  ```
+
+## 0.7.15
+
+* The `' '` character is not percent decoded anymore before matching routes. If you need to use it in
+  your routes, you should use `%20`.
+
+  instead of
+
+    ```rust
+    fn main() {
+         let app = App::new().resource("/my index", |r| {
+             r.method(http::Method::GET)
+                    .with(index);
+         });
+    }
+    ```
+
+  use
+
+    ```rust
+    fn main() {
+         let app = App::new().resource("/my%20index", |r| {
+             r.method(http::Method::GET)
+                    .with(index);
+         });
+    }
+    ```
+
+* If you used `AsyncResult::async` you need to replace it with `AsyncResult::future`
+
+
+## 0.7.4
+
+* `Route::with_config()`/`Route::with_async_config()` always passes configuration objects as tuple
+  even for handler with one parameter.
+
+
+## 0.7
+
+* `HttpRequest` does not implement `Stream` anymore. If you need to read request payload
+  use `HttpMessage::payload()` method.
+
+  instead of
+
+    ```rust
+    fn index(req: HttpRequest) -> impl Responder {
+         req
+            .from_err()
+            .fold(...)
+            ....
+    }
+    ```
+
+  use `.payload()`
+
+    ```rust
+    fn index(req: HttpRequest) -> impl Responder {
+         req
+            .payload()  // <- get request payload stream
+            .from_err()
+            .fold(...)
+            ....
+    }
+    ```
+
+* [Middleware](https://actix.rs/actix-web/actix_web/middleware/trait.Middleware.html)
+  trait uses `&HttpRequest` instead of `&mut HttpRequest`.
+
+* Removed `Route::with2()` and `Route::with3()` use tuple of extractors instead.
+
+    instead of
+
+    ```rust
+    fn index(query: Query<..>, info: Json<MyStruct) -> impl Responder {}
+    ```
+
+    use tuple of extractors and use `.with()` for registration:
+
+    ```rust
+    fn index((query, json): (Query<..>, Json<MyStruct)) -> impl Responder {}
+    ```
+
+* `Handler::handle()` uses `&self` instead of `&mut self`
+
+* `Handler::handle()` accepts reference to `HttpRequest<_>` instead of value
+
+* Removed deprecated `HttpServer::threads()`, use
+  [HttpServer::workers()](https://actix.rs/actix-web/actix_web/server/struct.HttpServer.html#method.workers) instead.
+
+* Renamed `client::ClientConnectorError::Connector` to
+  `client::ClientConnectorError::Resolver`
+
+* `Route::with()` does not return `ExtractorConfig`, to configure
+  extractor use `Route::with_config()`
+
+    instead of
+
+    ```rust
+    fn main() {
+         let app = App::new().resource("/index.html", |r| {
+             r.method(http::Method::GET)
+                    .with(index)
+                    .limit(4096);  // <- limit size of the payload
+         });
+    }
+    ```
+
+    use
+
+    ```rust
+
+    fn main() {
+         let app = App::new().resource("/index.html", |r| {
+             r.method(http::Method::GET)
+                    .with_config(index, |cfg| { // <- register handler
+                       cfg.limit(4096);  // <- limit size of the payload
+                     })
+         });
+    }
+    ```
+
+* `Route::with_async()` does not return `ExtractorConfig`, to configure
+  extractor use `Route::with_async_config()`
+
+
+## 0.6
 
 * `Path<T>` extractor return `ErrorNotFound` on failure instead of `ErrorBadRequest`
 
@@ -13,12 +593,12 @@
 * `HttpRequest::extensions()` returns read only reference to the request's Extension
   `HttpRequest::extensions_mut()` returns mutable reference.
 
-* Instead of 
+* Instead of
 
    `use actix_web::middleware::{
         CookieSessionBackend, CookieSessionError, RequestSession,
         Session, SessionBackend, SessionImpl, SessionStorage};`
-                                
+
   use `actix_web::middleware::session`
 
    `use actix_web::middleware::session{CookieSessionBackend, CookieSessionError,
@@ -50,7 +630,7 @@
   you need to use `use actix_web::ws::WsWriter`
 
 
-## Migration from 0.4 to 0.5
+## 0.5
 
 * `HttpResponseBuilder::body()`, `.finish()`, `.json()`
    methods return `HttpResponse` instead of `Result<HttpResponse>`

Makefile

@@ -1,14 +0,0 @@
-.PHONY: default build test doc book clean
-
-CARGO_FLAGS := --features "$(FEATURES) alpn"
-
-default: test
-
-build:
-	cargo build $(CARGO_FLAGS)
-
-test: build clippy
-	cargo test $(CARGO_FLAGS)
-
-doc: build
-	cargo doc --no-deps $(CARGO_FLAGS)

README.md

@@ -1,89 +1,111 @@
-# Actix web [![Build Status](https://travis-ci.org/actix/actix-web.svg?branch=master)](https://travis-ci.org/actix/actix-web) [![Build status](https://ci.appveyor.com/api/projects/status/kkdb4yce7qhm5w85/branch/master?svg=true)](https://ci.appveyor.com/project/fafhrd91/actix-web-hdy9d/branch/master) [![codecov](https://codecov.io/gh/actix/actix-web/branch/master/graph/badge.svg)](https://codecov.io/gh/actix/actix-web) [![crates.io](https://meritbadge.herokuapp.com/actix-web)](https://crates.io/crates/actix-web) [![Join the chat at https://gitter.im/actix/actix](https://badges.gitter.im/actix/actix.svg)](https://gitter.im/actix/actix?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+<div align="center">
+  <h1>Actix web</h1>
+  <p>
+    <strong>Actix Web is a powerful, pragmatic, and extremely fast web framework for Rust</strong>
+  </p>
+  <p>
 
-Actix web is a simple, pragmatic and extremely fast web framework for Rust.
+[![crates.io](https://img.shields.io/crates/v/actix-web?label=latest)](https://crates.io/crates/actix-web)
+[![Documentation](https://docs.rs/actix-web/badge.svg?version=3.3.2)](https://docs.rs/actix-web/3.3.2)
+[![Version](https://img.shields.io/badge/rustc-1.46+-ab6000.svg)](https://blog.rust-lang.org/2020/03/12/Rust-1.46.html)
+![License](https://img.shields.io/crates/l/actix-web.svg)
+[![Dependency Status](https://deps.rs/crate/actix-web/3.3.2/status.svg)](https://deps.rs/crate/actix-web/3.3.2)
+<br />
+[![Build Status](https://travis-ci.org/actix/actix-web.svg?branch=master)](https://travis-ci.org/actix/actix-web) 
+[![codecov](https://codecov.io/gh/actix/actix-web/branch/master/graph/badge.svg)](https://codecov.io/gh/actix/actix-web) 
+[![Download](https://img.shields.io/crates/d/actix-web.svg)](https://crates.io/crates/actix-web)
+[![Join the chat at https://gitter.im/actix/actix](https://badges.gitter.im/actix/actix.svg)](https://gitter.im/actix/actix?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+[![Chat on Discord](https://img.shields.io/discord/771444961383153695?label=chat&logo=discord)](https://discord.gg/NWpN5mmg3x)
 
-* Supported *HTTP/1.x* and [*HTTP/2.0*](https://actix.rs/book/actix-web/sec-12-http2.html) protocols
+  </p>
+</div>
+
+## Features
+
+* Supports *HTTP/1.x* and *HTTP/2*
 * Streaming and pipelining
 * Keep-alive and slow requests handling
-* Client/server [WebSockets](https://actix.rs/book/actix-web/sec-11-websockets.html) support
+* Client/server [WebSockets](https://actix.rs/docs/websockets/) support
 * Transparent content compression/decompression (br, gzip, deflate)
-* Configurable [request routing](https://actix.rs/book/actix-web/sec-6-url-dispatch.html)
-* Graceful server shutdown
+* Powerful [request routing](https://actix.rs/docs/url-dispatch/)
 * Multipart streams
 * Static assets
-* SSL support with OpenSSL or `native-tls`
-* Middlewares ([Logger](https://actix.rs/book/actix-web/sec-9-middlewares.html#logging),
-  [Session](https://actix.rs/book/actix-web/sec-9-middlewares.html#user-sessions),
-  [Redis sessions](https://github.com/actix/actix-redis),
-  [DefaultHeaders](https://actix.rs/book/actix-web/sec-9-middlewares.html#default-headers),
-  [CORS](https://actix.rs/actix-web/actix_web/middleware/cors/index.html),
-  [CSRF](https://actix.rs/actix-web/actix_web/middleware/csrf/index.html))
-* Includes an asynchronous [HTTP client](https://github.com/actix/actix-web/blob/master/src/client/mod.rs)
-* Built on top of [Actix actor framework](https://github.com/actix/actix)
+* SSL support using OpenSSL or Rustls
+* Middlewares ([Logger, Session, CORS, etc](https://actix.rs/docs/middleware/))
+* Includes an async [HTTP client](https://actix.rs/actix-web/actix_web/client/index.html)
+* Supports [Actix actor framework](https://github.com/actix/actix)
+* Runs on stable Rust 1.46+
 
-## Documentation & community resources
+## Documentation
 
-* [User Guide](https://actix.rs/book/actix-web/)
-* [API Documentation (Development)](https://actix.rs/actix-web/actix_web/)
-* [API Documentation (Releases)](https://docs.rs/actix-web/)
-* [Chat on gitter](https://gitter.im/actix/actix)
-* Cargo package: [actix-web](https://crates.io/crates/actix-web)
-* Minimum supported Rust version: 1.24 or later
+* [Website & User Guide](https://actix.rs)
+* [Examples Repository](https://github.com/actix/examples)
+* [API Documentation](https://docs.rs/actix-web)
+* [API Documentation (master branch)](https://actix.rs/actix-web/actix_web)
 
 ## Example
 
-```rust
-extern crate actix_web;
-use actix_web::{http, server, App, Path};
+Dependencies:
 
-fn index(info: Path<(u32, String)>) -> String {
-    format!("Hello {}! id:{}", info.1, info.0)
+```toml
+[dependencies]
+actix-web = "3"
+```
+
+Code:
+
+```rust
+use actix_web::{get, web, App, HttpServer, Responder};
+
+#[get("/{id}/{name}/index.html")]
+async fn index(web::Path((id, name)): web::Path<(u32, String)>) -> impl Responder {
+    format!("Hello {}! id:{}", name, id)
 }
 
-fn main() {
-    server::new(
-        || App::new()
-            .route("/{id}/{name}/index.html", http::Method::GET, index))
-        .bind("127.0.0.1:8080").unwrap()
-        .run();
+#[actix_web::main]
+async fn main() -> std::io::Result<()> {
+    HttpServer::new(|| App::new().service(index))
+        .bind("127.0.0.1:8080")?
+        .run()
+        .await
 }
 ```
 
 ### More examples
 
-* [Basics](https://github.com/actix/examples/tree/master/basics/)
-* [Stateful](https://github.com/actix/examples/tree/master/state/)
-* [Protobuf support](https://github.com/actix/examples/tree/master/protobuf/)
-* [Multipart streams](https://github.com/actix/examples/tree/master/multipart/)
-* [Simple websocket](https://github.com/actix/examples/tree/master/websocket/)
-* [Tera](https://github.com/actix/examples/tree/master/template_tera/) / 
-  [Askama](https://github.com/actix/examples/tree/master/template_askama/) templates
-* [Diesel integration](https://github.com/actix/examples/tree/master/diesel/)
-* [r2d2](https://github.com/actix/examples/tree/master/r2d2/)
-* [SSL / HTTP/2.0](https://github.com/actix/examples/tree/master/tls/)
-* [Tcp/Websocket chat](https://github.com/actix/examples/tree/master/websocket-chat/)
-* [Json](https://github.com/actix/examples/tree/master/json/)
+* [Basic Setup](https://github.com/actix/examples/tree/master/basics/)
+* [Application State](https://github.com/actix/examples/tree/master/state/)
+* [JSON Handling](https://github.com/actix/examples/tree/master/json/)
+* [Multipart Streams](https://github.com/actix/examples/tree/master/multipart/)
+* [Diesel Integration](https://github.com/actix/examples/tree/master/diesel/)
+* [r2d2 Integration](https://github.com/actix/examples/tree/master/r2d2/)
+* [Simple WebSocket](https://github.com/actix/examples/tree/master/websocket/)
+* [Tera Templates](https://github.com/actix/examples/tree/master/template_tera/)
+* [Askama Templates](https://github.com/actix/examples/tree/master/template_askama/)
+* [HTTPS using Rustls](https://github.com/actix/examples/tree/master/rustls/)
+* [HTTPS using OpenSSL](https://github.com/actix/examples/tree/master/openssl/)
+* [WebSocket Chat](https://github.com/actix/examples/tree/master/websocket-chat/)
 
 You may consider checking out
 [this directory](https://github.com/actix/examples/tree/master/) for more examples.
 
 ## Benchmarks
 
-* [TechEmpower Framework Benchmark](https://www.techempower.com/benchmarks/#section=data-r15&hw=ph&test=plaintext)
-
-* Some basic benchmarks could be found in this [repository](https://github.com/fafhrd91/benchmarks).
+One of the fastest web frameworks available according to the
+[TechEmpower Framework Benchmark](https://www.techempower.com/benchmarks/#section=data-r19).
 
 ## License
 
 This project is licensed under either of
 
-* Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or [http://www.apache.org/licenses/LICENSE-2.0](http://www.apache.org/licenses/LICENSE-2.0))
-* MIT license ([LICENSE-MIT](LICENSE-MIT) or [http://opensource.org/licenses/MIT](http://opensource.org/licenses/MIT))
+* Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
+  [http://www.apache.org/licenses/LICENSE-2.0](http://www.apache.org/licenses/LICENSE-2.0))
+* MIT license ([LICENSE-MIT](LICENSE-MIT) or
+  [http://opensource.org/licenses/MIT](http://opensource.org/licenses/MIT))
 
 at your option.
 
 ## Code of Conduct
 
-Contribution to the actix-web crate is organized under the terms of the
-Contributor Covenant, the maintainer of actix-web, @fafhrd91, promises to
-intervene to uphold that code of conduct.
+Contribution to the actix-web repo is organized under the terms of the Contributor Covenant.
+The Actix team promises to intervene to uphold that code of conduct.

actix-files/CHANGES.md

@@ -0,0 +1,115 @@
+# Changes
+
+## Unreleased - 2021-xx-xx
+
+
+## 0.6.0-beta.1 - 2021-01-07
+* `HttpRange::parse` now has its own error type.
+* Update `bytes` to `1.0`. [#1813]
+
+[#1813]: https://github.com/actix/actix-web/pull/1813
+
+
+## 0.5.0 - 2020-12-26
+* Optionally support hidden files/directories. [#1811]
+
+[#1811]: https://github.com/actix/actix-web/pull/1811
+
+
+## 0.4.1 - 2020-11-24
+* Clarify order of parameters in `Files::new` and improve docs.
+
+
+## 0.4.0 - 2020-10-06
+* Add `Files::prefer_utf8` option that adds UTF-8 charset on certain response types. [#1714]
+
+[#1714]: https://github.com/actix/actix-web/pull/1714
+
+
+## 0.3.0 - 2020-09-11
+* No significant changes from 0.3.0-beta.1.
+
+
+## 0.3.0-beta.1 - 2020-07-15
+* Update `v_htmlescape` to 0.10
+* Update `actix-web` and `actix-http` dependencies to beta.1
+
+
+## 0.3.0-alpha.1 - 2020-05-23
+* Update `actix-web` and `actix-http` dependencies to alpha
+* Fix some typos in the docs
+* Bump minimum supported Rust version to 1.40
+* Support sending Content-Length when Content-Range is specified [#1384]
+
+[#1384]: https://github.com/actix/actix-web/pull/1384
+
+
+## 0.2.1 - 2019-12-22
+* Use the same format for file URLs regardless of platforms
+
+
+## 0.2.0 - 2019-12-20
+* Fix BodyEncoding trait import #1220
+
+
+## 0.2.0-alpha.1 - 2019-12-07
+* Migrate to `std::future`
+
+
+## 0.1.7 - 2019-11-06
+* Add an additional `filename*` param in the `Content-Disposition` header of
+  `actix_files::NamedFile` to be more compatible. (#1151)
+
+## 0.1.6 - 2019-10-14
+* Add option to redirect to a slash-ended path `Files` #1132
+
+
+## 0.1.5 - 2019-10-08
+* Bump up `mime_guess` crate version to 2.0.1
+* Bump up `percent-encoding` crate version to 2.1
+* Allow user defined request guards for `Files` #1113
+
+
+## 0.1.4 - 2019-07-20
+* Allow to disable `Content-Disposition` header #686
+
+
+## 0.1.3 - 2019-06-28
+* Do not set `Content-Length` header, let actix-http set it #930
+
+
+## 0.1.2 - 2019-06-13
+* Content-Length is 0 for NamedFile HEAD request #914
+* Fix ring dependency from actix-web default features for #741
+
+
+## 0.1.1 - 2019-06-01
+* Static files are incorrectly served as both chunked and with length #812
+
+
+## 0.1.0 - 2019-05-25
+* NamedFile last-modified check always fails due to nano-seconds in file modified date #820
+
+
+## 0.1.0-beta.4 - 2019-05-12
+* Update actix-web to beta.4
+
+
+## 0.1.0-beta.1 - 2019-04-20
+* Update actix-web to beta.1
+
+
+## 0.1.0-alpha.6 - 2019-04-14
+* Update actix-web to alpha6
+
+
+## 0.1.0-alpha.4 - 2019-04-08
+* Update actix-web to alpha4
+
+
+## 0.1.0-alpha.2 - 2019-04-02
+* Add default handler support
+
+
+## 0.1.0-alpha.1 - 2019-03-28
+* Initial impl

actix-files/Cargo.toml

@@ -0,0 +1,35 @@
+[package]
+name = "actix-files"
+version = "0.6.0-beta.1"
+authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
+description = "Static file serving for Actix Web"
+readme = "README.md"
+keywords = ["actix", "http", "async", "futures"]
+homepage = "https://actix.rs"
+repository = "https://github.com/actix/actix-web.git"
+documentation = "https://docs.rs/actix-files/"
+categories = ["asynchronous", "web-programming::http-server"]
+license = "MIT OR Apache-2.0"
+edition = "2018"
+
+[lib]
+name = "actix_files"
+path = "src/lib.rs"
+
+[dependencies]
+actix-web = { version = "4.0.0-beta.1", default-features = false }
+actix-service = "2.0.0-beta.2"
+bitflags = "1"
+bytes = "1"
+futures-core = { version = "0.3.7", default-features = false }
+futures-util = { version = "0.3.7", default-features = false }
+derive_more = "0.99.5"
+log = "0.4"
+mime = "0.3"
+mime_guess = "2.0.1"
+percent-encoding = "2.1"
+v_htmlescape = "0.12"
+
+[dev-dependencies]
+actix-rt = "2.0.0-beta.1"
+actix-web = "4.0.0-beta.1"

actix-files/LICENSE-APACHE

@@ -0,0 +1 @@
+../LICENSE-APACHE

actix-files/LICENSE-MIT

@@ -0,0 +1 @@
+../LICENSE-MIT

actix-files/README.md

@@ -0,0 +1,19 @@
+# actix-files
+
+> Static file serving for Actix Web
+
+[![crates.io](https://img.shields.io/crates/v/actix-files?label=latest)](https://crates.io/crates/actix-files)
+[![Documentation](https://docs.rs/actix-files/badge.svg?version=0.5.0)](https://docs.rs/actix-files/0.5.0)
+[![Version](https://img.shields.io/badge/rustc-1.46+-ab6000.svg)](https://blog.rust-lang.org/2020/03/12/Rust-1.46.html)
+![License](https://img.shields.io/crates/l/actix-files.svg)
+<br />
+[![dependency status](https://deps.rs/crate/actix-files/0.5.0/status.svg)](https://deps.rs/crate/actix-files/0.5.0)
+[![Download](https://img.shields.io/crates/d/actix-files.svg)](https://crates.io/crates/actix-files)
+[![Join the chat at https://gitter.im/actix/actix](https://badges.gitter.im/actix/actix.svg)](https://gitter.im/actix/actix?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+
+## Documentation & Resources
+
+- [API Documentation](https://docs.rs/actix-files/)
+- [Example Project](https://github.com/actix/examples/tree/master/static_index)
+- [Chat on Gitter](https://gitter.im/actix/actix-web)
+- Minimum supported Rust version: 1.46 or later

actix-files/src/chunked.rs

@@ -0,0 +1,94 @@
+use std::{
+    cmp, fmt,
+    fs::File,
+    future::Future,
+    io::{self, Read, Seek},
+    pin::Pin,
+    task::{Context, Poll},
+};
+
+use actix_web::{
+    error::{BlockingError, Error},
+    web,
+};
+use bytes::Bytes;
+use futures_core::{ready, Stream};
+use futures_util::future::{FutureExt, LocalBoxFuture};
+
+use crate::handle_error;
+
+type ChunkedBoxFuture =
+    LocalBoxFuture<'static, Result<(File, Bytes), BlockingError<io::Error>>>;
+
+#[doc(hidden)]
+/// A helper created from a `std::fs::File` which reads the file
+/// chunk-by-chunk on a `ThreadPool`.
+pub struct ChunkedReadFile {
+    pub(crate) size: u64,
+    pub(crate) offset: u64,
+    pub(crate) file: Option<File>,
+    pub(crate) fut: Option<ChunkedBoxFuture>,
+    pub(crate) counter: u64,
+}
+
+impl fmt::Debug for ChunkedReadFile {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        f.write_str("ChunkedReadFile")
+    }
+}
+
+impl Stream for ChunkedReadFile {
+    type Item = Result<Bytes, Error>;
+
+    fn poll_next(
+        mut self: Pin<&mut Self>,
+        cx: &mut Context<'_>,
+    ) -> Poll<Option<Self::Item>> {
+        if let Some(ref mut fut) = self.fut {
+            return match ready!(Pin::new(fut).poll(cx)) {
+                Ok((file, bytes)) => {
+                    self.fut.take();
+                    self.file = Some(file);
+
+                    self.offset += bytes.len() as u64;
+                    self.counter += bytes.len() as u64;
+
+                    Poll::Ready(Some(Ok(bytes)))
+                }
+                Err(e) => Poll::Ready(Some(Err(handle_error(e)))),
+            };
+        }
+
+        let size = self.size;
+        let offset = self.offset;
+        let counter = self.counter;
+
+        if size == counter {
+            Poll::Ready(None)
+        } else {
+            let mut file = self.file.take().expect("Use after completion");
+
+            self.fut = Some(
+                web::block(move || {
+                    let max_bytes =
+                        cmp::min(size.saturating_sub(counter), 65_536) as usize;
+
+                    let mut buf = Vec::with_capacity(max_bytes);
+                    file.seek(io::SeekFrom::Start(offset))?;
+
+                    let n_bytes =
+                        file.by_ref().take(max_bytes as u64).read_to_end(&mut buf)?;
+
+                    if n_bytes == 0 {
+                        return Err(io::ErrorKind::UnexpectedEof.into());
+                    }
+
+                    Ok((file, Bytes::from(buf)))
+                })
+                .boxed_local(),
+            );
+
+            self.poll_next(cx)
+        }
+    }
+}

actix-files/src/directory.rs

@@ -0,0 +1,114 @@
+use std::{fmt::Write, fs::DirEntry, io, path::Path, path::PathBuf};
+
+use actix_web::{dev::ServiceResponse, HttpRequest, HttpResponse};
+use percent_encoding::{utf8_percent_encode, CONTROLS};
+use v_htmlescape::escape as escape_html_entity;
+
+/// A directory; responds with the generated directory listing.
+#[derive(Debug)]
+pub struct Directory {
+    /// Base directory.
+    pub base: PathBuf,
+
+    /// Path of subdirectory to generate listing for.
+    pub path: PathBuf,
+}
+
+impl Directory {
+    /// Create a new directory
+    pub fn new(base: PathBuf, path: PathBuf) -> Directory {
+        Directory { base, path }
+    }
+
+    /// Is this entry visible from this directory?
+    pub fn is_visible(&self, entry: &io::Result<DirEntry>) -> bool {
+        if let Ok(ref entry) = *entry {
+            if let Some(name) = entry.file_name().to_str() {
+                if name.starts_with('.') {
+                    return false;
+                }
+            }
+            if let Ok(ref md) = entry.metadata() {
+                let ft = md.file_type();
+                return ft.is_dir() || ft.is_file() || ft.is_symlink();
+            }
+        }
+        false
+    }
+}
+
+pub(crate) type DirectoryRenderer =
+    dyn Fn(&Directory, &HttpRequest) -> Result<ServiceResponse, io::Error>;
+
+// show file url as relative to static path
+macro_rules! encode_file_url {
+    ($path:ident) => {
+        utf8_percent_encode(&$path, CONTROLS)
+    };
+}
+
+// " -- &quot;  & -- &amp;  ' -- &#x27;  < -- &lt;  > -- &gt;  / -- &#x2f;
+macro_rules! encode_file_name {
+    ($entry:ident) => {
+        escape_html_entity(&$entry.file_name().to_string_lossy())
+    };
+}
+
+pub(crate) fn directory_listing(
+    dir: &Directory,
+    req: &HttpRequest,
+) -> Result<ServiceResponse, io::Error> {
+    let index_of = format!("Index of {}", req.path());
+    let mut body = String::new();
+    let base = Path::new(req.path());
+
+    for entry in dir.path.read_dir()? {
+        if dir.is_visible(&entry) {
+            let entry = entry.unwrap();
+            let p = match entry.path().strip_prefix(&dir.path) {
+                Ok(p) if cfg!(windows) => {
+                    base.join(p).to_string_lossy().replace("\\", "/")
+                }
+                Ok(p) => base.join(p).to_string_lossy().into_owned(),
+                Err(_) => continue,
+            };
+
+            // if file is a directory, add '/' to the end of the name
+            if let Ok(metadata) = entry.metadata() {
+                if metadata.is_dir() {
+                    let _ = write!(
+                        body,
+                        "<li><a href=\"{}\">{}/</a></li>",
+                        encode_file_url!(p),
+                        encode_file_name!(entry),
+                    );
+                } else {
+                    let _ = write!(
+                        body,
+                        "<li><a href=\"{}\">{}</a></li>",
+                        encode_file_url!(p),
+                        encode_file_name!(entry),
+                    );
+                }
+            } else {
+                continue;
+            }
+        }
+    }
+
+    let html = format!(
+        "<html>\
+         <head><title>{}</title></head>\
+         <body><h1>{}</h1>\
+         <ul>\
+         {}\
+         </ul></body>\n</html>",
+        index_of, index_of, body
+    );
+    Ok(ServiceResponse::new(
+        req.clone(),
+        HttpResponse::Ok()
+            .content_type("text/html; charset=utf-8")
+            .body(html),
+    ))
+}

actix-files/src/encoding.rs

@@ -0,0 +1,52 @@
+use mime::Mime;
+
+/// Transforms MIME `text/*` types into their UTF-8 equivalent, if supported.
+///
+/// MIME types that are converted
+/// - application/javascript
+/// - text/html
+/// - text/css
+/// - text/plain
+/// - text/csv
+/// - text/tab-separated-values
+pub(crate) fn equiv_utf8_text(ct: Mime) -> Mime {
+    // use (roughly) order of file-type popularity for a web server
+
+    if ct == mime::APPLICATION_JAVASCRIPT {
+        return mime::APPLICATION_JAVASCRIPT_UTF_8;
+    }
+
+    if ct == mime::TEXT_HTML {
+        return mime::TEXT_HTML_UTF_8;
+    }
+
+    if ct == mime::TEXT_CSS {
+        return mime::TEXT_CSS_UTF_8;
+    }
+
+    if ct == mime::TEXT_PLAIN {
+        return mime::TEXT_PLAIN_UTF_8;
+    }
+
+    if ct == mime::TEXT_CSV {
+        return mime::TEXT_CSV_UTF_8;
+    }
+
+    if ct == mime::TEXT_TAB_SEPARATED_VALUES {
+        return mime::TEXT_TAB_SEPARATED_VALUES_UTF_8;
+    }
+
+    ct
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_equiv_utf8_text() {
+        assert_eq!(equiv_utf8_text(mime::TEXT_PLAIN), mime::TEXT_PLAIN_UTF_8);
+        assert_eq!(equiv_utf8_text(mime::TEXT_XML), mime::TEXT_XML);
+        assert_eq!(equiv_utf8_text(mime::IMAGE_PNG), mime::IMAGE_PNG);
+    }
+}

actix-files/src/error.rs

@@ -0,0 +1,42 @@
+use actix_web::{http::StatusCode, HttpResponse, ResponseError};
+use derive_more::Display;
+
+/// Errors which can occur when serving static files.
+#[derive(Display, Debug, PartialEq)]
+pub enum FilesError {
+    /// Path is not a directory
+    #[allow(dead_code)]
+    #[display(fmt = "Path is not a directory. Unable to serve static files")]
+    IsNotDirectory,
+
+    /// Cannot render directory
+    #[display(fmt = "Unable to render directory without index file")]
+    IsDirectory,
+}
+
+/// Return `NotFound` for `FilesError`
+impl ResponseError for FilesError {
+    fn error_response(&self) -> HttpResponse {
+        HttpResponse::new(StatusCode::NOT_FOUND)
+    }
+}
+
+#[derive(Display, Debug, PartialEq)]
+pub enum UriSegmentError {
+    /// The segment started with the wrapped invalid character.
+    #[display(fmt = "The segment started with the wrapped invalid character")]
+    BadStart(char),
+    /// The segment contained the wrapped invalid character.
+    #[display(fmt = "The segment contained the wrapped invalid character")]
+    BadChar(char),
+    /// The segment ended with the wrapped invalid character.
+    #[display(fmt = "The segment ended with the wrapped invalid character")]
+    BadEnd(char),
+}
+
+/// Return `BadRequest` for `UriSegmentError`
+impl ResponseError for UriSegmentError {
+    fn status_code(&self) -> StatusCode {
+        StatusCode::BAD_REQUEST
+    }
+}

actix-files/src/files.rs

@@ -0,0 +1,281 @@
+use std::{cell::RefCell, fmt, io, path::PathBuf, rc::Rc};
+
+use actix_service::{boxed, IntoServiceFactory, ServiceFactory, ServiceFactoryExt};
+use actix_web::{
+    dev::{
+        AppService, HttpServiceFactory, ResourceDef, ServiceRequest, ServiceResponse,
+    },
+    error::Error,
+    guard::Guard,
+    http::header::DispositionType,
+    HttpRequest,
+};
+use futures_util::future::{ok, FutureExt, LocalBoxFuture};
+
+use crate::{
+    directory_listing, named, Directory, DirectoryRenderer, FilesService,
+    HttpNewService, MimeOverride,
+};
+
+/// Static files handling service.
+///
+/// `Files` service must be registered with `App::service()` method.
+///
+/// ```rust
+/// use actix_web::App;
+/// use actix_files::Files;
+///
+/// let app = App::new()
+///     .service(Files::new("/static", "."));
+/// ```
+pub struct Files {
+    path: String,
+    directory: PathBuf,
+    index: Option<String>,
+    show_index: bool,
+    redirect_to_slash: bool,
+    default: Rc<RefCell<Option<Rc<HttpNewService>>>>,
+    renderer: Rc<DirectoryRenderer>,
+    mime_override: Option<Rc<MimeOverride>>,
+    file_flags: named::Flags,
+    guards: Option<Rc<dyn Guard>>,
+    hidden_files: bool,
+}
+
+impl fmt::Debug for Files {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        f.write_str("Files")
+    }
+}
+
+impl Clone for Files {
+    fn clone(&self) -> Self {
+        Self {
+            directory: self.directory.clone(),
+            index: self.index.clone(),
+            show_index: self.show_index,
+            redirect_to_slash: self.redirect_to_slash,
+            default: self.default.clone(),
+            renderer: self.renderer.clone(),
+            file_flags: self.file_flags,
+            path: self.path.clone(),
+            mime_override: self.mime_override.clone(),
+            guards: self.guards.clone(),
+            hidden_files: self.hidden_files,
+        }
+    }
+}
+
+impl Files {
+    /// Create new `Files` instance for a specified base directory.
+    ///
+    /// # Argument Order
+    /// The first argument (`mount_path`) is the root URL at which the static files are served.
+    /// For example, `/assets` will serve files at `example.com/assets/...`.
+    ///
+    /// The second argument (`serve_from`) is the location on disk at which files are loaded.
+    /// This can be a relative path. For example, `./` would serve files from the current
+    /// working directory.
+    ///
+    /// # Implementation Notes
+    /// If the mount path is set as the root path `/`, services registered after this one will
+    /// be inaccessible. Register more specific handlers and services first.
+    ///
+    /// `Files` uses a threadpool for blocking filesystem operations. By default, the pool uses a
+    /// number of threads equal to 5x the number of available logical CPUs. Pool size can be changed
+    /// by setting ACTIX_THREADPOOL environment variable.
+    pub fn new<T: Into<PathBuf>>(mount_path: &str, serve_from: T) -> Files {
+        let orig_dir = serve_from.into();
+        let dir = match orig_dir.canonicalize() {
+            Ok(canon_dir) => canon_dir,
+            Err(_) => {
+                log::error!("Specified path is not a directory: {:?}", orig_dir);
+                PathBuf::new()
+            }
+        };
+
+        Files {
+            path: mount_path.to_owned(),
+            directory: dir,
+            index: None,
+            show_index: false,
+            redirect_to_slash: false,
+            default: Rc::new(RefCell::new(None)),
+            renderer: Rc::new(directory_listing),
+            mime_override: None,
+            file_flags: named::Flags::default(),
+            guards: None,
+            hidden_files: false,
+        }
+    }
+
+    /// Show files listing for directories.
+    ///
+    /// By default show files listing is disabled.
+    pub fn show_files_listing(mut self) -> Self {
+        self.show_index = true;
+        self
+    }
+
+    /// Redirects to a slash-ended path when browsing a directory.
+    ///
+    /// By default never redirect.
+    pub fn redirect_to_slash_directory(mut self) -> Self {
+        self.redirect_to_slash = true;
+        self
+    }
+
+    /// Set custom directory renderer
+    pub fn files_listing_renderer<F>(mut self, f: F) -> Self
+    where
+        for<'r, 's> F: Fn(&'r Directory, &'s HttpRequest) -> Result<ServiceResponse, io::Error>
+            + 'static,
+    {
+        self.renderer = Rc::new(f);
+        self
+    }
+
+    /// Specifies mime override callback
+    pub fn mime_override<F>(mut self, f: F) -> Self
+    where
+        F: Fn(&mime::Name<'_>) -> DispositionType + 'static,
+    {
+        self.mime_override = Some(Rc::new(f));
+        self
+    }
+
+    /// Set index file
+    ///
+    /// Shows specific index file for directory "/" instead of
+    /// showing files listing.
+    pub fn index_file<T: Into<String>>(mut self, index: T) -> Self {
+        self.index = Some(index.into());
+        self
+    }
+
+    /// Specifies whether to use ETag or not.
+    ///
+    /// Default is true.
+    #[inline]
+    pub fn use_etag(mut self, value: bool) -> Self {
+        self.file_flags.set(named::Flags::ETAG, value);
+        self
+    }
+
+    /// Specifies whether to use Last-Modified or not.
+    ///
+    /// Default is true.
+    #[inline]
+    pub fn use_last_modified(mut self, value: bool) -> Self {
+        self.file_flags.set(named::Flags::LAST_MD, value);
+        self
+    }
+
+    /// Specifies whether text responses should signal a UTF-8 encoding.
+    ///
+    /// Default is false (but will default to true in a future version).
+    #[inline]
+    pub fn prefer_utf8(mut self, value: bool) -> Self {
+        self.file_flags.set(named::Flags::PREFER_UTF8, value);
+        self
+    }
+
+    /// Specifies custom guards to use for directory listings and files.
+    ///
+    /// Default behaviour allows GET and HEAD.
+    #[inline]
+    pub fn use_guards<G: Guard + 'static>(mut self, guards: G) -> Self {
+        self.guards = Some(Rc::new(guards));
+        self
+    }
+
+    /// Disable `Content-Disposition` header.
+    ///
+    /// By default Content-Disposition` header is enabled.
+    #[inline]
+    pub fn disable_content_disposition(mut self) -> Self {
+        self.file_flags.remove(named::Flags::CONTENT_DISPOSITION);
+        self
+    }
+
+    /// Sets default handler which is used when no matched file could be found.
+    pub fn default_handler<F, U>(mut self, f: F) -> Self
+    where
+        F: IntoServiceFactory<U, ServiceRequest>,
+        U: ServiceFactory<
+                ServiceRequest,
+                Config = (),
+                Response = ServiceResponse,
+                Error = Error,
+            > + 'static,
+    {
+        // create and configure default resource
+        self.default = Rc::new(RefCell::new(Some(Rc::new(boxed::factory(
+            f.into_factory().map_init_err(|_| ()),
+        )))));
+
+        self
+    }
+
+    /// Enables serving hidden files and directories, allowing a leading dots in url fragments.
+    #[inline]
+    pub fn use_hidden_files(mut self) -> Self {
+        self.hidden_files = true;
+        self
+    }
+}
+
+impl HttpServiceFactory for Files {
+    fn register(self, config: &mut AppService) {
+        if self.default.borrow().is_none() {
+            *self.default.borrow_mut() = Some(config.default_service());
+        }
+
+        let rdef = if config.is_root() {
+            ResourceDef::root_prefix(&self.path)
+        } else {
+            ResourceDef::prefix(&self.path)
+        };
+
+        config.register_service(rdef, None, self, None)
+    }
+}
+
+impl ServiceFactory<ServiceRequest> for Files {
+    type Response = ServiceResponse;
+    type Error = Error;
+    type Config = ();
+    type Service = FilesService;
+    type InitError = ();
+    type Future = LocalBoxFuture<'static, Result<Self::Service, Self::InitError>>;
+
+    fn new_service(&self, _: ()) -> Self::Future {
+        let mut srv = FilesService {
+            directory: self.directory.clone(),
+            index: self.index.clone(),
+            show_index: self.show_index,
+            redirect_to_slash: self.redirect_to_slash,
+            default: None,
+            renderer: self.renderer.clone(),
+            mime_override: self.mime_override.clone(),
+            file_flags: self.file_flags,
+            guards: self.guards.clone(),
+            hidden_files: self.hidden_files,
+        };
+
+        if let Some(ref default) = *self.default.borrow() {
+            default
+                .new_service(())
+                .map(move |result| match result {
+                    Ok(default) => {
+                        srv.default = Some(default);
+                        Ok(srv)
+                    }
+                    Err(_) => Err(()),
+                })
+                .boxed_local()
+        } else {
+            ok(srv).boxed_local()
+        }
+    }
+}

actix-files/src/lib.rs

@@ -0,0 +1,776 @@
+//! Static file serving for Actix Web.
+//!
+//! Provides a non-blocking service for serving static files from disk.
+//!
+//! # Example
+//! ```rust
+//! use actix_web::App;
+//! use actix_files::Files;
+//!
+//! let app = App::new()
+//!     .service(Files::new("/static", ".").prefer_utf8(true));
+//! ```
+
+#![deny(rust_2018_idioms)]
+#![warn(missing_docs, missing_debug_implementations)]
+
+use std::io;
+
+use actix_service::boxed::{BoxService, BoxServiceFactory};
+use actix_web::{
+    dev::{ServiceRequest, ServiceResponse},
+    error::{BlockingError, Error, ErrorInternalServerError},
+    http::header::DispositionType,
+};
+use mime_guess::from_ext;
+
+mod chunked;
+mod directory;
+mod encoding;
+mod error;
+mod files;
+mod named;
+mod path_buf;
+mod range;
+mod service;
+
+pub use crate::chunked::ChunkedReadFile;
+pub use crate::directory::Directory;
+pub use crate::files::Files;
+pub use crate::named::NamedFile;
+pub use crate::range::HttpRange;
+pub use crate::service::FilesService;
+
+use self::directory::{directory_listing, DirectoryRenderer};
+use self::error::FilesError;
+use self::path_buf::PathBufWrap;
+
+type HttpService = BoxService<ServiceRequest, ServiceResponse, Error>;
+type HttpNewService = BoxServiceFactory<(), ServiceRequest, ServiceResponse, Error, ()>;
+
+/// Return the MIME type associated with a filename extension (case-insensitive).
+/// If `ext` is empty or no associated type for the extension was found, returns
+/// the type `application/octet-stream`.
+#[inline]
+pub fn file_extension_to_mime(ext: &str) -> mime::Mime {
+    from_ext(ext).first_or_octet_stream()
+}
+
+pub(crate) fn handle_error(err: BlockingError<io::Error>) -> Error {
+    match err {
+        BlockingError::Error(err) => err.into(),
+        BlockingError::Canceled => ErrorInternalServerError("Unexpected error"),
+    }
+}
+
+type MimeOverride = dyn Fn(&mime::Name<'_>) -> DispositionType;
+
+#[cfg(test)]
+mod tests {
+    use std::{
+        fs::{self, File},
+        ops::Add,
+        time::{Duration, SystemTime},
+    };
+
+    use actix_service::ServiceFactory;
+    use actix_web::{
+        guard,
+        http::{
+            header::{self, ContentDisposition, DispositionParam, DispositionType},
+            Method, StatusCode,
+        },
+        middleware::Compress,
+        test::{self, TestRequest},
+        web, App, HttpResponse, Responder,
+    };
+    use futures_util::future::ok;
+
+    use super::*;
+
+    #[actix_rt::test]
+    async fn test_file_extension_to_mime() {
+        let m = file_extension_to_mime("");
+        assert_eq!(m, mime::APPLICATION_OCTET_STREAM);
+
+        let m = file_extension_to_mime("jpg");
+        assert_eq!(m, mime::IMAGE_JPEG);
+
+        let m = file_extension_to_mime("invalid extension!!");
+        assert_eq!(m, mime::APPLICATION_OCTET_STREAM);
+
+        let m = file_extension_to_mime("");
+        assert_eq!(m, mime::APPLICATION_OCTET_STREAM);
+    }
+
+    #[actix_rt::test]
+    async fn test_if_modified_since_without_if_none_match() {
+        let file = NamedFile::open("Cargo.toml").unwrap();
+        let since =
+            header::HttpDate::from(SystemTime::now().add(Duration::from_secs(60)));
+
+        let req = TestRequest::default()
+            .header(header::IF_MODIFIED_SINCE, since)
+            .to_http_request();
+        let resp = file.respond_to(&req).await.unwrap();
+        assert_eq!(resp.status(), StatusCode::NOT_MODIFIED);
+    }
+
+    #[actix_rt::test]
+    async fn test_if_modified_since_with_if_none_match() {
+        let file = NamedFile::open("Cargo.toml").unwrap();
+        let since =
+            header::HttpDate::from(SystemTime::now().add(Duration::from_secs(60)));
+
+        let req = TestRequest::default()
+            .header(header::IF_NONE_MATCH, "miss_etag")
+            .header(header::IF_MODIFIED_SINCE, since)
+            .to_http_request();
+        let resp = file.respond_to(&req).await.unwrap();
+        assert_ne!(resp.status(), StatusCode::NOT_MODIFIED);
+    }
+
+    #[actix_rt::test]
+    async fn test_named_file_text() {
+        assert!(NamedFile::open("test--").is_err());
+        let mut file = NamedFile::open("Cargo.toml").unwrap();
+        {
+            file.file();
+            let _f: &File = &file;
+        }
+        {
+            let _f: &mut File = &mut file;
+        }
+
+        let req = TestRequest::default().to_http_request();
+        let resp = file.respond_to(&req).await.unwrap();
+        assert_eq!(
+            resp.headers().get(header::CONTENT_TYPE).unwrap(),
+            "text/x-toml"
+        );
+        assert_eq!(
+            resp.headers().get(header::CONTENT_DISPOSITION).unwrap(),
+            "inline; filename=\"Cargo.toml\""
+        );
+    }
+
+    #[actix_rt::test]
+    async fn test_named_file_content_disposition() {
+        assert!(NamedFile::open("test--").is_err());
+        let mut file = NamedFile::open("Cargo.toml").unwrap();
+        {
+            file.file();
+            let _f: &File = &file;
+        }
+        {
+            let _f: &mut File = &mut file;
+        }
+
+        let req = TestRequest::default().to_http_request();
+        let resp = file.respond_to(&req).await.unwrap();
+        assert_eq!(
+            resp.headers().get(header::CONTENT_DISPOSITION).unwrap(),
+            "inline; filename=\"Cargo.toml\""
+        );
+
+        let file = NamedFile::open("Cargo.toml")
+            .unwrap()
+            .disable_content_disposition();
+        let req = TestRequest::default().to_http_request();
+        let resp = file.respond_to(&req).await.unwrap();
+        assert!(resp.headers().get(header::CONTENT_DISPOSITION).is_none());
+    }
+
+    #[actix_rt::test]
+    async fn test_named_file_non_ascii_file_name() {
+        let mut file =
+            NamedFile::from_file(File::open("Cargo.toml").unwrap(), "貨物.toml")
+                .unwrap();
+        {
+            file.file();
+            let _f: &File = &file;
+        }
+        {
+            let _f: &mut File = &mut file;
+        }
+
+        let req = TestRequest::default().to_http_request();
+        let resp = file.respond_to(&req).await.unwrap();
+        assert_eq!(
+            resp.headers().get(header::CONTENT_TYPE).unwrap(),
+            "text/x-toml"
+        );
+        assert_eq!(
+            resp.headers().get(header::CONTENT_DISPOSITION).unwrap(),
+            "inline; filename=\"貨物.toml\"; filename*=UTF-8''%E8%B2%A8%E7%89%A9.toml"
+        );
+    }
+
+    #[actix_rt::test]
+    async fn test_named_file_set_content_type() {
+        let mut file = NamedFile::open("Cargo.toml")
+            .unwrap()
+            .set_content_type(mime::TEXT_XML);
+        {
+            file.file();
+            let _f: &File = &file;
+        }
+        {
+            let _f: &mut File = &mut file;
+        }
+
+        let req = TestRequest::default().to_http_request();
+        let resp = file.respond_to(&req).await.unwrap();
+        assert_eq!(
+            resp.headers().get(header::CONTENT_TYPE).unwrap(),
+            "text/xml"
+        );
+        assert_eq!(
+            resp.headers().get(header::CONTENT_DISPOSITION).unwrap(),
+            "inline; filename=\"Cargo.toml\""
+        );
+    }
+
+    #[actix_rt::test]
+    async fn test_named_file_image() {
+        let mut file = NamedFile::open("tests/test.png").unwrap();
+        {
+            file.file();
+            let _f: &File = &file;
+        }
+        {
+            let _f: &mut File = &mut file;
+        }
+
+        let req = TestRequest::default().to_http_request();
+        let resp = file.respond_to(&req).await.unwrap();
+        assert_eq!(
+            resp.headers().get(header::CONTENT_TYPE).unwrap(),
+            "image/png"
+        );
+        assert_eq!(
+            resp.headers().get(header::CONTENT_DISPOSITION).unwrap(),
+            "inline; filename=\"test.png\""
+        );
+    }
+
+    #[actix_rt::test]
+    async fn test_named_file_image_attachment() {
+        let cd = ContentDisposition {
+            disposition: DispositionType::Attachment,
+            parameters: vec![DispositionParam::Filename(String::from("test.png"))],
+        };
+        let mut file = NamedFile::open("tests/test.png")
+            .unwrap()
+            .set_content_disposition(cd);
+        {
+            file.file();
+            let _f: &File = &file;
+        }
+        {
+            let _f: &mut File = &mut file;
+        }
+
+        let req = TestRequest::default().to_http_request();
+        let resp = file.respond_to(&req).await.unwrap();
+        assert_eq!(
+            resp.headers().get(header::CONTENT_TYPE).unwrap(),
+            "image/png"
+        );
+        assert_eq!(
+            resp.headers().get(header::CONTENT_DISPOSITION).unwrap(),
+            "attachment; filename=\"test.png\""
+        );
+    }
+
+    #[actix_rt::test]
+    async fn test_named_file_binary() {
+        let mut file = NamedFile::open("tests/test.binary").unwrap();
+        {
+            file.file();
+            let _f: &File = &file;
+        }
+        {
+            let _f: &mut File = &mut file;
+        }
+
+        let req = TestRequest::default().to_http_request();
+        let resp = file.respond_to(&req).await.unwrap();
+        assert_eq!(
+            resp.headers().get(header::CONTENT_TYPE).unwrap(),
+            "application/octet-stream"
+        );
+        assert_eq!(
+            resp.headers().get(header::CONTENT_DISPOSITION).unwrap(),
+            "attachment; filename=\"test.binary\""
+        );
+    }
+
+    #[actix_rt::test]
+    async fn test_named_file_status_code_text() {
+        let mut file = NamedFile::open("Cargo.toml")
+            .unwrap()
+            .set_status_code(StatusCode::NOT_FOUND);
+        {
+            file.file();
+            let _f: &File = &file;
+        }
+        {
+            let _f: &mut File = &mut file;
+        }
+
+        let req = TestRequest::default().to_http_request();
+        let resp = file.respond_to(&req).await.unwrap();
+        assert_eq!(
+            resp.headers().get(header::CONTENT_TYPE).unwrap(),
+            "text/x-toml"
+        );
+        assert_eq!(
+            resp.headers().get(header::CONTENT_DISPOSITION).unwrap(),
+            "inline; filename=\"Cargo.toml\""
+        );
+        assert_eq!(resp.status(), StatusCode::NOT_FOUND);
+    }
+
+    #[actix_rt::test]
+    async fn test_mime_override() {
+        fn all_attachment(_: &mime::Name<'_>) -> DispositionType {
+            DispositionType::Attachment
+        }
+
+        let mut srv = test::init_service(
+            App::new().service(
+                Files::new("/", ".")
+                    .mime_override(all_attachment)
+                    .index_file("Cargo.toml"),
+            ),
+        )
+        .await;
+
+        let request = TestRequest::get().uri("/").to_request();
+        let response = test::call_service(&mut srv, request).await;
+        assert_eq!(response.status(), StatusCode::OK);
+
+        let content_disposition = response
+            .headers()
+            .get(header::CONTENT_DISPOSITION)
+            .expect("To have CONTENT_DISPOSITION");
+        let content_disposition = content_disposition
+            .to_str()
+            .expect("Convert CONTENT_DISPOSITION to str");
+        assert_eq!(content_disposition, "attachment; filename=\"Cargo.toml\"");
+    }
+
+    #[actix_rt::test]
+    async fn test_named_file_ranges_status_code() {
+        let mut srv = test::init_service(
+            App::new().service(Files::new("/test", ".").index_file("Cargo.toml")),
+        )
+        .await;
+
+        // Valid range header
+        let request = TestRequest::get()
+            .uri("/t%65st/Cargo.toml")
+            .header(header::RANGE, "bytes=10-20")
+            .to_request();
+        let response = test::call_service(&mut srv, request).await;
+        assert_eq!(response.status(), StatusCode::PARTIAL_CONTENT);
+
+        // Invalid range header
+        let request = TestRequest::get()
+            .uri("/t%65st/Cargo.toml")
+            .header(header::RANGE, "bytes=1-0")
+            .to_request();
+        let response = test::call_service(&mut srv, request).await;
+
+        assert_eq!(response.status(), StatusCode::RANGE_NOT_SATISFIABLE);
+    }
+
+    #[actix_rt::test]
+    async fn test_named_file_content_range_headers() {
+        let srv = test::start(|| App::new().service(Files::new("/", ".")));
+
+        // Valid range header
+        let response = srv
+            .get("/tests/test.binary")
+            .header(header::RANGE, "bytes=10-20")
+            .send()
+            .await
+            .unwrap();
+        let content_range = response.headers().get(header::CONTENT_RANGE).unwrap();
+        assert_eq!(content_range.to_str().unwrap(), "bytes 10-20/100");
+
+        // Invalid range header
+        let response = srv
+            .get("/tests/test.binary")
+            .header(header::RANGE, "bytes=10-5")
+            .send()
+            .await
+            .unwrap();
+        let content_range = response.headers().get(header::CONTENT_RANGE).unwrap();
+        assert_eq!(content_range.to_str().unwrap(), "bytes */100");
+    }
+
+    #[actix_rt::test]
+    async fn test_named_file_content_length_headers() {
+        let srv = test::start(|| App::new().service(Files::new("/", ".")));
+
+        // Valid range header
+        let response = srv
+            .get("/tests/test.binary")
+            .header(header::RANGE, "bytes=10-20")
+            .send()
+            .await
+            .unwrap();
+        let content_length = response.headers().get(header::CONTENT_LENGTH).unwrap();
+        assert_eq!(content_length.to_str().unwrap(), "11");
+
+        // Valid range header, starting from 0
+        let response = srv
+            .get("/tests/test.binary")
+            .header(header::RANGE, "bytes=0-20")
+            .send()
+            .await
+            .unwrap();
+        let content_length = response.headers().get(header::CONTENT_LENGTH).unwrap();
+        assert_eq!(content_length.to_str().unwrap(), "21");
+
+        // Without range header
+        let mut response = srv.get("/tests/test.binary").send().await.unwrap();
+        let content_length = response.headers().get(header::CONTENT_LENGTH).unwrap();
+        assert_eq!(content_length.to_str().unwrap(), "100");
+
+        // Should be no transfer-encoding
+        let transfer_encoding = response.headers().get(header::TRANSFER_ENCODING);
+        assert!(transfer_encoding.is_none());
+
+        // Check file contents
+        let bytes = response.body().await.unwrap();
+        let data = web::Bytes::from(fs::read("tests/test.binary").unwrap());
+        assert_eq!(bytes, data);
+    }
+
+    #[actix_rt::test]
+    async fn test_head_content_length_headers() {
+        let srv = test::start(|| App::new().service(Files::new("/", ".")));
+
+        let response = srv.head("/tests/test.binary").send().await.unwrap();
+
+        let content_length = response
+            .headers()
+            .get(header::CONTENT_LENGTH)
+            .unwrap()
+            .to_str()
+            .unwrap();
+
+        assert_eq!(content_length, "100");
+    }
+
+    #[actix_rt::test]
+    async fn test_static_files_with_spaces() {
+        let mut srv = test::init_service(
+            App::new().service(Files::new("/", ".").index_file("Cargo.toml")),
+        )
+        .await;
+        let request = TestRequest::get()
+            .uri("/tests/test%20space.binary")
+            .to_request();
+        let response = test::call_service(&mut srv, request).await;
+        assert_eq!(response.status(), StatusCode::OK);
+
+        let bytes = test::read_body(response).await;
+        let data = web::Bytes::from(fs::read("tests/test space.binary").unwrap());
+        assert_eq!(bytes, data);
+    }
+
+    #[actix_rt::test]
+    async fn test_files_not_allowed() {
+        let mut srv = test::init_service(App::new().service(Files::new("/", "."))).await;
+
+        let req = TestRequest::default()
+            .uri("/Cargo.toml")
+            .method(Method::POST)
+            .to_request();
+
+        let resp = test::call_service(&mut srv, req).await;
+        assert_eq!(resp.status(), StatusCode::METHOD_NOT_ALLOWED);
+
+        let mut srv = test::init_service(App::new().service(Files::new("/", "."))).await;
+        let req = TestRequest::default()
+            .method(Method::PUT)
+            .uri("/Cargo.toml")
+            .to_request();
+        let resp = test::call_service(&mut srv, req).await;
+        assert_eq!(resp.status(), StatusCode::METHOD_NOT_ALLOWED);
+    }
+
+    #[actix_rt::test]
+    async fn test_files_guards() {
+        let mut srv = test::init_service(
+            App::new().service(Files::new("/", ".").use_guards(guard::Post())),
+        )
+        .await;
+
+        let req = TestRequest::default()
+            .uri("/Cargo.toml")
+            .method(Method::POST)
+            .to_request();
+
+        let resp = test::call_service(&mut srv, req).await;
+        assert_eq!(resp.status(), StatusCode::OK);
+    }
+
+    #[actix_rt::test]
+    async fn test_named_file_content_encoding() {
+        let mut srv = test::init_service(App::new().wrap(Compress::default()).service(
+            web::resource("/").to(|| async {
+                NamedFile::open("Cargo.toml")
+                    .unwrap()
+                    .set_content_encoding(header::ContentEncoding::Identity)
+            }),
+        ))
+        .await;
+
+        let request = TestRequest::get()
+            .uri("/")
+            .header(header::ACCEPT_ENCODING, "gzip")
+            .to_request();
+        let res = test::call_service(&mut srv, request).await;
+        assert_eq!(res.status(), StatusCode::OK);
+        assert!(!res.headers().contains_key(header::CONTENT_ENCODING));
+    }
+
+    #[actix_rt::test]
+    async fn test_named_file_content_encoding_gzip() {
+        let mut srv = test::init_service(App::new().wrap(Compress::default()).service(
+            web::resource("/").to(|| async {
+                NamedFile::open("Cargo.toml")
+                    .unwrap()
+                    .set_content_encoding(header::ContentEncoding::Gzip)
+            }),
+        ))
+        .await;
+
+        let request = TestRequest::get()
+            .uri("/")
+            .header(header::ACCEPT_ENCODING, "gzip")
+            .to_request();
+        let res = test::call_service(&mut srv, request).await;
+        assert_eq!(res.status(), StatusCode::OK);
+        assert_eq!(
+            res.headers()
+                .get(header::CONTENT_ENCODING)
+                .unwrap()
+                .to_str()
+                .unwrap(),
+            "gzip"
+        );
+    }
+
+    #[actix_rt::test]
+    async fn test_named_file_allowed_method() {
+        let req = TestRequest::default().method(Method::GET).to_http_request();
+        let file = NamedFile::open("Cargo.toml").unwrap();
+        let resp = file.respond_to(&req).await.unwrap();
+        assert_eq!(resp.status(), StatusCode::OK);
+    }
+
+    #[actix_rt::test]
+    async fn test_static_files() {
+        let mut srv = test::init_service(
+            App::new().service(Files::new("/", ".").show_files_listing()),
+        )
+        .await;
+        let req = TestRequest::with_uri("/missing").to_request();
+
+        let resp = test::call_service(&mut srv, req).await;
+        assert_eq!(resp.status(), StatusCode::NOT_FOUND);
+
+        let mut srv = test::init_service(App::new().service(Files::new("/", "."))).await;
+
+        let req = TestRequest::default().to_request();
+        let resp = test::call_service(&mut srv, req).await;
+        assert_eq!(resp.status(), StatusCode::NOT_FOUND);
+
+        let mut srv = test::init_service(
+            App::new().service(Files::new("/", ".").show_files_listing()),
+        )
+        .await;
+        let req = TestRequest::with_uri("/tests").to_request();
+        let resp = test::call_service(&mut srv, req).await;
+        assert_eq!(
+            resp.headers().get(header::CONTENT_TYPE).unwrap(),
+            "text/html; charset=utf-8"
+        );
+
+        let bytes = test::read_body(resp).await;
+        assert!(format!("{:?}", bytes).contains("/tests/test.png"));
+    }
+
+    #[actix_rt::test]
+    async fn test_redirect_to_slash_directory() {
+        // should not redirect if no index
+        let mut srv = test::init_service(
+            App::new().service(Files::new("/", ".").redirect_to_slash_directory()),
+        )
+        .await;
+        let req = TestRequest::with_uri("/tests").to_request();
+        let resp = test::call_service(&mut srv, req).await;
+        assert_eq!(resp.status(), StatusCode::NOT_FOUND);
+
+        // should redirect if index present
+        let mut srv = test::init_service(
+            App::new().service(
+                Files::new("/", ".")
+                    .index_file("test.png")
+                    .redirect_to_slash_directory(),
+            ),
+        )
+        .await;
+        let req = TestRequest::with_uri("/tests").to_request();
+        let resp = test::call_service(&mut srv, req).await;
+        assert_eq!(resp.status(), StatusCode::FOUND);
+
+        // should not redirect if the path is wrong
+        let req = TestRequest::with_uri("/not_existing").to_request();
+        let resp = test::call_service(&mut srv, req).await;
+        assert_eq!(resp.status(), StatusCode::NOT_FOUND);
+    }
+
+    #[actix_rt::test]
+    async fn test_static_files_bad_directory() {
+        let _st: Files = Files::new("/", "missing");
+        let _st: Files = Files::new("/", "Cargo.toml");
+    }
+
+    #[actix_rt::test]
+    async fn test_default_handler_file_missing() {
+        let mut st = Files::new("/", ".")
+            .default_handler(|req: ServiceRequest| {
+                ok(req.into_response(HttpResponse::Ok().body("default content")))
+            })
+            .new_service(())
+            .await
+            .unwrap();
+        let req = TestRequest::with_uri("/missing").to_srv_request();
+
+        let resp = test::call_service(&mut st, req).await;
+        assert_eq!(resp.status(), StatusCode::OK);
+        let bytes = test::read_body(resp).await;
+        assert_eq!(bytes, web::Bytes::from_static(b"default content"));
+    }
+
+    //     #[actix_rt::test]
+    //     async fn test_serve_index() {
+    //         let st = Files::new(".").index_file("test.binary");
+    //         let req = TestRequest::default().uri("/tests").finish();
+
+    //         let resp = st.handle(&req).respond_to(&req).unwrap();
+    //         let resp = resp.as_msg();
+    //         assert_eq!(resp.status(), StatusCode::OK);
+    //         assert_eq!(
+    //             resp.headers()
+    //                 .get(header::CONTENT_TYPE)
+    //                 .expect("content type"),
+    //             "application/octet-stream"
+    //         );
+    //         assert_eq!(
+    //             resp.headers()
+    //                 .get(header::CONTENT_DISPOSITION)
+    //                 .expect("content disposition"),
+    //             "attachment; filename=\"test.binary\""
+    //         );
+
+    //         let req = TestRequest::default().uri("/tests/").finish();
+    //         let resp = st.handle(&req).respond_to(&req).unwrap();
+    //         let resp = resp.as_msg();
+    //         assert_eq!(resp.status(), StatusCode::OK);
+    //         assert_eq!(
+    //             resp.headers().get(header::CONTENT_TYPE).unwrap(),
+    //             "application/octet-stream"
+    //         );
+    //         assert_eq!(
+    //             resp.headers().get(header::CONTENT_DISPOSITION).unwrap(),
+    //             "attachment; filename=\"test.binary\""
+    //         );
+
+    //         // nonexistent index file
+    //         let req = TestRequest::default().uri("/tests/unknown").finish();
+    //         let resp = st.handle(&req).respond_to(&req).unwrap();
+    //         let resp = resp.as_msg();
+    //         assert_eq!(resp.status(), StatusCode::NOT_FOUND);
+
+    //         let req = TestRequest::default().uri("/tests/unknown/").finish();
+    //         let resp = st.handle(&req).respond_to(&req).unwrap();
+    //         let resp = resp.as_msg();
+    //         assert_eq!(resp.status(), StatusCode::NOT_FOUND);
+    //     }
+
+    //     #[actix_rt::test]
+    //     async fn test_serve_index_nested() {
+    //         let st = Files::new(".").index_file("mod.rs");
+    //         let req = TestRequest::default().uri("/src/client").finish();
+    //         let resp = st.handle(&req).respond_to(&req).unwrap();
+    //         let resp = resp.as_msg();
+    //         assert_eq!(resp.status(), StatusCode::OK);
+    //         assert_eq!(
+    //             resp.headers().get(header::CONTENT_TYPE).unwrap(),
+    //             "text/x-rust"
+    //         );
+    //         assert_eq!(
+    //             resp.headers().get(header::CONTENT_DISPOSITION).unwrap(),
+    //             "inline; filename=\"mod.rs\""
+    //         );
+    //     }
+
+    //     #[actix_rt::test]
+    //     fn integration_serve_index() {
+    //         let mut srv = test::TestServer::with_factory(|| {
+    //             App::new().handler(
+    //                 "test",
+    //                 Files::new(".").index_file("Cargo.toml"),
+    //             )
+    //         });
+
+    //         let request = srv.get().uri(srv.url("/test")).finish().unwrap();
+    //         let response = srv.execute(request.send()).unwrap();
+    //         assert_eq!(response.status(), StatusCode::OK);
+    //         let bytes = srv.execute(response.body()).unwrap();
+    //         let data = Bytes::from(fs::read("Cargo.toml").unwrap());
+    //         assert_eq!(bytes, data);
+
+    //         let request = srv.get().uri(srv.url("/test/")).finish().unwrap();
+    //         let response = srv.execute(request.send()).unwrap();
+    //         assert_eq!(response.status(), StatusCode::OK);
+    //         let bytes = srv.execute(response.body()).unwrap();
+    //         let data = Bytes::from(fs::read("Cargo.toml").unwrap());
+    //         assert_eq!(bytes, data);
+
+    //         // nonexistent index file
+    //         let request = srv.get().uri(srv.url("/test/unknown")).finish().unwrap();
+    //         let response = srv.execute(request.send()).unwrap();
+    //         assert_eq!(response.status(), StatusCode::NOT_FOUND);
+
+    //         let request = srv.get().uri(srv.url("/test/unknown/")).finish().unwrap();
+    //         let response = srv.execute(request.send()).unwrap();
+    //         assert_eq!(response.status(), StatusCode::NOT_FOUND);
+    //     }
+
+    //     #[actix_rt::test]
+    //     fn integration_percent_encoded() {
+    //         let mut srv = test::TestServer::with_factory(|| {
+    //             App::new().handler(
+    //                 "test",
+    //                 Files::new(".").index_file("Cargo.toml"),
+    //             )
+    //         });
+
+    //         let request = srv
+    //             .get()
+    //             .uri(srv.url("/test/%43argo.toml"))
+    //             .finish()
+    //             .unwrap();
+    //         let response = srv.execute(request.send()).unwrap();
+    //         assert_eq!(response.status(), StatusCode::OK);
+    //     }
+}

actix-files/src/named.rs

@@ -0,0 +1,504 @@
+use std::fs::{File, Metadata};
+use std::io;
+use std::ops::{Deref, DerefMut};
+use std::path::{Path, PathBuf};
+use std::time::{SystemTime, UNIX_EPOCH};
+
+#[cfg(unix)]
+use std::os::unix::fs::MetadataExt;
+
+use actix_web::{
+    dev::{BodyEncoding, SizedStream},
+    http::{
+        header::{
+            self, Charset, ContentDisposition, DispositionParam, DispositionType,
+            ExtendedValue,
+        },
+        ContentEncoding, StatusCode,
+    },
+    Error, HttpMessage, HttpRequest, HttpResponse, Responder,
+};
+use bitflags::bitflags;
+use futures_util::future::{ready, Ready};
+use mime_guess::from_path;
+
+use crate::ChunkedReadFile;
+use crate::{encoding::equiv_utf8_text, range::HttpRange};
+
+bitflags! {
+    pub(crate) struct Flags: u8 {
+        const ETAG =                0b0000_0001;
+        const LAST_MD =             0b0000_0010;
+        const CONTENT_DISPOSITION = 0b0000_0100;
+        const PREFER_UTF8 =         0b0000_1000;
+    }
+}
+
+impl Default for Flags {
+    fn default() -> Self {
+        Flags::from_bits_truncate(0b0000_0111)
+    }
+}
+
+/// A file with an associated name.
+#[derive(Debug)]
+pub struct NamedFile {
+    path: PathBuf,
+    file: File,
+    modified: Option<SystemTime>,
+    pub(crate) md: Metadata,
+    pub(crate) flags: Flags,
+    pub(crate) status_code: StatusCode,
+    pub(crate) content_type: mime::Mime,
+    pub(crate) content_disposition: header::ContentDisposition,
+    pub(crate) encoding: Option<ContentEncoding>,
+}
+
+impl NamedFile {
+    /// Creates an instance from a previously opened file.
+    ///
+    /// The given `path` need not exist and is only used to determine the `ContentType` and
+    /// `ContentDisposition` headers.
+    ///
+    /// # Examples
+    ///
+    /// ```rust
+    /// use actix_files::NamedFile;
+    /// use std::io::{self, Write};
+    /// use std::env;
+    /// use std::fs::File;
+    ///
+    /// fn main() -> io::Result<()> {
+    ///     let mut file = File::create("foo.txt")?;
+    ///     file.write_all(b"Hello, world!")?;
+    ///     let named_file = NamedFile::from_file(file, "bar.txt")?;
+    ///     # std::fs::remove_file("foo.txt");
+    ///     Ok(())
+    /// }
+    /// ```
+    pub fn from_file<P: AsRef<Path>>(file: File, path: P) -> io::Result<NamedFile> {
+        let path = path.as_ref().to_path_buf();
+
+        // Get the name of the file and use it to construct default Content-Type
+        // and Content-Disposition values
+        let (content_type, content_disposition) = {
+            let filename = match path.file_name() {
+                Some(name) => name.to_string_lossy(),
+                None => {
+                    return Err(io::Error::new(
+                        io::ErrorKind::InvalidInput,
+                        "Provided path has no filename",
+                    ));
+                }
+            };
+
+            let ct = from_path(&path).first_or_octet_stream();
+
+            let disposition = match ct.type_() {
+                mime::IMAGE | mime::TEXT | mime::VIDEO => DispositionType::Inline,
+                _ => DispositionType::Attachment,
+            };
+
+            let mut parameters =
+                vec![DispositionParam::Filename(String::from(filename.as_ref()))];
+
+            if !filename.is_ascii() {
+                parameters.push(DispositionParam::FilenameExt(ExtendedValue {
+                    charset: Charset::Ext(String::from("UTF-8")),
+                    language_tag: None,
+                    value: filename.into_owned().into_bytes(),
+                }))
+            }
+
+            let cd = ContentDisposition {
+                disposition,
+                parameters,
+            };
+
+            (ct, cd)
+        };
+
+        let md = file.metadata()?;
+        let modified = md.modified().ok();
+        let encoding = None;
+
+        Ok(NamedFile {
+            path,
+            file,
+            content_type,
+            content_disposition,
+            md,
+            modified,
+            encoding,
+            status_code: StatusCode::OK,
+            flags: Flags::default(),
+        })
+    }
+
+    /// Attempts to open a file in read-only mode.
+    ///
+    /// # Examples
+    ///
+    /// ```rust
+    /// use actix_files::NamedFile;
+    ///
+    /// let file = NamedFile::open("foo.txt");
+    /// ```
+    pub fn open<P: AsRef<Path>>(path: P) -> io::Result<NamedFile> {
+        Self::from_file(File::open(&path)?, path)
+    }
+
+    /// Returns reference to the underlying `File` object.
+    #[inline]
+    pub fn file(&self) -> &File {
+        &self.file
+    }
+
+    /// Retrieve the path of this file.
+    ///
+    /// # Examples
+    ///
+    /// ```rust
+    /// # use std::io;
+    /// use actix_files::NamedFile;
+    ///
+    /// # fn path() -> io::Result<()> {
+    /// let file = NamedFile::open("test.txt")?;
+    /// assert_eq!(file.path().as_os_str(), "foo.txt");
+    /// # Ok(())
+    /// # }
+    /// ```
+    #[inline]
+    pub fn path(&self) -> &Path {
+        self.path.as_path()
+    }
+
+    /// Set response **Status Code**
+    pub fn set_status_code(mut self, status: StatusCode) -> Self {
+        self.status_code = status;
+        self
+    }
+
+    /// Set the MIME Content-Type for serving this file. By default
+    /// the Content-Type is inferred from the filename extension.
+    #[inline]
+    pub fn set_content_type(mut self, mime_type: mime::Mime) -> Self {
+        self.content_type = mime_type;
+        self
+    }
+
+    /// Set the Content-Disposition for serving this file. This allows
+    /// changing the inline/attachment disposition as well as the filename
+    /// sent to the peer. By default the disposition is `inline` for text,
+    /// image, and video content types, and `attachment` otherwise, and
+    /// the filename is taken from the path provided in the `open` method
+    /// after converting it to UTF-8 using.
+    /// [`std::ffi::OsStr::to_string_lossy`]
+    #[inline]
+    pub fn set_content_disposition(mut self, cd: header::ContentDisposition) -> Self {
+        self.content_disposition = cd;
+        self.flags.insert(Flags::CONTENT_DISPOSITION);
+        self
+    }
+
+    /// Disable `Content-Disposition` header.
+    ///
+    /// By default Content-Disposition` header is enabled.
+    #[inline]
+    pub fn disable_content_disposition(mut self) -> Self {
+        self.flags.remove(Flags::CONTENT_DISPOSITION);
+        self
+    }
+
+    /// Set content encoding for serving this file
+    #[inline]
+    pub fn set_content_encoding(mut self, enc: ContentEncoding) -> Self {
+        self.encoding = Some(enc);
+        self
+    }
+
+    /// Specifies whether to use ETag or not.
+    ///
+    /// Default is true.
+    #[inline]
+    pub fn use_etag(mut self, value: bool) -> Self {
+        self.flags.set(Flags::ETAG, value);
+        self
+    }
+
+    /// Specifies whether to use Last-Modified or not.
+    ///
+    /// Default is true.
+    #[inline]
+    pub fn use_last_modified(mut self, value: bool) -> Self {
+        self.flags.set(Flags::LAST_MD, value);
+        self
+    }
+
+    /// Specifies whether text responses should signal a UTF-8 encoding.
+    ///
+    /// Default is false (but will default to true in a future version).
+    #[inline]
+    pub fn prefer_utf8(mut self, value: bool) -> Self {
+        self.flags.set(Flags::PREFER_UTF8, value);
+        self
+    }
+
+    pub(crate) fn etag(&self) -> Option<header::EntityTag> {
+        // This etag format is similar to Apache's.
+        self.modified.as_ref().map(|mtime| {
+            let ino = {
+                #[cfg(unix)]
+                {
+                    self.md.ino()
+                }
+                #[cfg(not(unix))]
+                {
+                    0
+                }
+            };
+
+            let dur = mtime
+                .duration_since(UNIX_EPOCH)
+                .expect("modification time must be after epoch");
+
+            header::EntityTag::strong(format!(
+                "{:x}:{:x}:{:x}:{:x}",
+                ino,
+                self.md.len(),
+                dur.as_secs(),
+                dur.subsec_nanos()
+            ))
+        })
+    }
+
+    pub(crate) fn last_modified(&self) -> Option<header::HttpDate> {
+        self.modified.map(|mtime| mtime.into())
+    }
+
+    /// Creates an `HttpResponse` with file as a streaming body.
+    pub fn into_response(self, req: &HttpRequest) -> Result<HttpResponse, Error> {
+        if self.status_code != StatusCode::OK {
+            let mut res = HttpResponse::build(self.status_code);
+
+            if self.flags.contains(Flags::PREFER_UTF8) {
+                let ct = equiv_utf8_text(self.content_type.clone());
+                res.header(header::CONTENT_TYPE, ct.to_string());
+            } else {
+                res.header(header::CONTENT_TYPE, self.content_type.to_string());
+            }
+
+            if self.flags.contains(Flags::CONTENT_DISPOSITION) {
+                res.header(
+                    header::CONTENT_DISPOSITION,
+                    self.content_disposition.to_string(),
+                );
+            }
+
+            if let Some(current_encoding) = self.encoding {
+                res.encoding(current_encoding);
+            }
+
+            let reader = ChunkedReadFile {
+                size: self.md.len(),
+                offset: 0,
+                file: Some(self.file),
+                fut: None,
+                counter: 0,
+            };
+
+            return Ok(res.streaming(reader));
+        }
+
+        let etag = if self.flags.contains(Flags::ETAG) {
+            self.etag()
+        } else {
+            None
+        };
+
+        let last_modified = if self.flags.contains(Flags::LAST_MD) {
+            self.last_modified()
+        } else {
+            None
+        };
+
+        // check preconditions
+        let precondition_failed = if !any_match(etag.as_ref(), req) {
+            true
+        } else if let (Some(ref m), Some(header::IfUnmodifiedSince(ref since))) =
+            (last_modified, req.get_header())
+        {
+            let t1: SystemTime = m.clone().into();
+            let t2: SystemTime = since.clone().into();
+
+            match (t1.duration_since(UNIX_EPOCH), t2.duration_since(UNIX_EPOCH)) {
+                (Ok(t1), Ok(t2)) => t1 > t2,
+                _ => false,
+            }
+        } else {
+            false
+        };
+
+        // check last modified
+        let not_modified = if !none_match(etag.as_ref(), req) {
+            true
+        } else if req.headers().contains_key(header::IF_NONE_MATCH) {
+            false
+        } else if let (Some(ref m), Some(header::IfModifiedSince(ref since))) =
+            (last_modified, req.get_header())
+        {
+            let t1: SystemTime = m.clone().into();
+            let t2: SystemTime = since.clone().into();
+
+            match (t1.duration_since(UNIX_EPOCH), t2.duration_since(UNIX_EPOCH)) {
+                (Ok(t1), Ok(t2)) => t1 <= t2,
+                _ => false,
+            }
+        } else {
+            false
+        };
+
+        let mut resp = HttpResponse::build(self.status_code);
+
+        if self.flags.contains(Flags::PREFER_UTF8) {
+            let ct = equiv_utf8_text(self.content_type.clone());
+            resp.header(header::CONTENT_TYPE, ct.to_string());
+        } else {
+            resp.header(header::CONTENT_TYPE, self.content_type.to_string());
+        }
+
+        if self.flags.contains(Flags::CONTENT_DISPOSITION) {
+            resp.header(
+                header::CONTENT_DISPOSITION,
+                self.content_disposition.to_string(),
+            );
+        }
+
+        // default compressing
+        if let Some(current_encoding) = self.encoding {
+            resp.encoding(current_encoding);
+        }
+
+        if let Some(lm) = last_modified {
+            resp.header(header::LAST_MODIFIED, lm.to_string());
+        }
+
+        if let Some(etag) = etag {
+            resp.header(header::ETAG, etag.to_string());
+        }
+
+        resp.header(header::ACCEPT_RANGES, "bytes");
+
+        let mut length = self.md.len();
+        let mut offset = 0;
+
+        // check for range header
+        if let Some(ranges) = req.headers().get(header::RANGE) {
+            if let Ok(ranges_header) = ranges.to_str() {
+                if let Ok(ranges) = HttpRange::parse(ranges_header, length) {
+                    length = ranges[0].length;
+                    offset = ranges[0].start;
+
+                    resp.encoding(ContentEncoding::Identity);
+                    resp.header(
+                        header::CONTENT_RANGE,
+                        format!(
+                            "bytes {}-{}/{}",
+                            offset,
+                            offset + length - 1,
+                            self.md.len()
+                        ),
+                    );
+                } else {
+                    resp.header(header::CONTENT_RANGE, format!("bytes */{}", length));
+                    return Ok(resp.status(StatusCode::RANGE_NOT_SATISFIABLE).finish());
+                };
+            } else {
+                return Ok(resp.status(StatusCode::BAD_REQUEST).finish());
+            };
+        };
+
+        if precondition_failed {
+            return Ok(resp.status(StatusCode::PRECONDITION_FAILED).finish());
+        } else if not_modified {
+            return Ok(resp.status(StatusCode::NOT_MODIFIED).finish());
+        }
+
+        let reader = ChunkedReadFile {
+            offset,
+            size: length,
+            file: Some(self.file),
+            fut: None,
+            counter: 0,
+        };
+
+        if offset != 0 || length != self.md.len() {
+            resp.status(StatusCode::PARTIAL_CONTENT);
+        }
+
+        Ok(resp.body(SizedStream::new(length, reader)))
+    }
+}
+
+impl Deref for NamedFile {
+    type Target = File;
+
+    fn deref(&self) -> &File {
+        &self.file
+    }
+}
+
+impl DerefMut for NamedFile {
+    fn deref_mut(&mut self) -> &mut File {
+        &mut self.file
+    }
+}
+
+/// Returns true if `req` has no `If-Match` header or one which matches `etag`.
+fn any_match(etag: Option<&header::EntityTag>, req: &HttpRequest) -> bool {
+    match req.get_header::<header::IfMatch>() {
+        None | Some(header::IfMatch::Any) => true,
+
+        Some(header::IfMatch::Items(ref items)) => {
+            if let Some(some_etag) = etag {
+                for item in items {
+                    if item.strong_eq(some_etag) {
+                        return true;
+                    }
+                }
+            }
+
+            false
+        }
+    }
+}
+
+/// Returns true if `req` doesn't have an `If-None-Match` header matching `req`.
+fn none_match(etag: Option<&header::EntityTag>, req: &HttpRequest) -> bool {
+    match req.get_header::<header::IfNoneMatch>() {
+        Some(header::IfNoneMatch::Any) => false,
+
+        Some(header::IfNoneMatch::Items(ref items)) => {
+            if let Some(some_etag) = etag {
+                for item in items {
+                    if item.weak_eq(some_etag) {
+                        return false;
+                    }
+                }
+            }
+
+            true
+        }
+
+        None => true,
+    }
+}
+
+impl Responder for NamedFile {
+    type Error = Error;
+    type Future = Ready<Result<HttpResponse, Error>>;
+
+    fn respond_to(self, req: &HttpRequest) -> Self::Future {
+        ready(self.into_response(req))
+    }
+}

actix-files/src/path_buf.rs

@@ -0,0 +1,119 @@
+use std::{
+    path::{Path, PathBuf},
+    str::FromStr,
+};
+
+use actix_web::{dev::Payload, FromRequest, HttpRequest};
+use futures_util::future::{ready, Ready};
+
+use crate::error::UriSegmentError;
+
+#[derive(Debug)]
+pub(crate) struct PathBufWrap(PathBuf);
+
+impl FromStr for PathBufWrap {
+    type Err = UriSegmentError;
+
+    fn from_str(path: &str) -> Result<Self, Self::Err> {
+        Self::parse_path(path, false)
+    }
+}
+
+impl PathBufWrap {
+    /// Parse a path, giving the choice of allowing hidden files to be considered valid segments.
+    pub fn parse_path(path: &str, hidden_files: bool) -> Result<Self, UriSegmentError> {
+        let mut buf = PathBuf::new();
+
+        for segment in path.split('/') {
+            if segment == ".." {
+                buf.pop();
+            } else if !hidden_files && segment.starts_with('.') {
+                return Err(UriSegmentError::BadStart('.'));
+            } else if segment.starts_with('*') {
+                return Err(UriSegmentError::BadStart('*'));
+            } else if segment.ends_with(':') {
+                return Err(UriSegmentError::BadEnd(':'));
+            } else if segment.ends_with('>') {
+                return Err(UriSegmentError::BadEnd('>'));
+            } else if segment.ends_with('<') {
+                return Err(UriSegmentError::BadEnd('<'));
+            } else if segment.is_empty() {
+                continue;
+            } else if cfg!(windows) && segment.contains('\\') {
+                return Err(UriSegmentError::BadChar('\\'));
+            } else {
+                buf.push(segment)
+            }
+        }
+
+        Ok(PathBufWrap(buf))
+    }
+}
+
+impl AsRef<Path> for PathBufWrap {
+    fn as_ref(&self) -> &Path {
+        self.0.as_ref()
+    }
+}
+
+impl FromRequest for PathBufWrap {
+    type Error = UriSegmentError;
+    type Future = Ready<Result<Self, Self::Error>>;
+    type Config = ();
+
+    fn from_request(req: &HttpRequest, _: &mut Payload) -> Self::Future {
+        ready(req.match_info().path().parse())
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use std::iter::FromIterator;
+
+    use super::*;
+
+    #[test]
+    fn test_path_buf() {
+        assert_eq!(
+            PathBufWrap::from_str("/test/.tt").map(|t| t.0),
+            Err(UriSegmentError::BadStart('.'))
+        );
+        assert_eq!(
+            PathBufWrap::from_str("/test/*tt").map(|t| t.0),
+            Err(UriSegmentError::BadStart('*'))
+        );
+        assert_eq!(
+            PathBufWrap::from_str("/test/tt:").map(|t| t.0),
+            Err(UriSegmentError::BadEnd(':'))
+        );
+        assert_eq!(
+            PathBufWrap::from_str("/test/tt<").map(|t| t.0),
+            Err(UriSegmentError::BadEnd('<'))
+        );
+        assert_eq!(
+            PathBufWrap::from_str("/test/tt>").map(|t| t.0),
+            Err(UriSegmentError::BadEnd('>'))
+        );
+        assert_eq!(
+            PathBufWrap::from_str("/seg1/seg2/").unwrap().0,
+            PathBuf::from_iter(vec!["seg1", "seg2"])
+        );
+        assert_eq!(
+            PathBufWrap::from_str("/seg1/../seg2/").unwrap().0,
+            PathBuf::from_iter(vec!["seg2"])
+        );
+    }
+
+    #[test]
+    fn test_parse_path() {
+        assert_eq!(
+            PathBufWrap::parse_path("/test/.tt", false).map(|t| t.0),
+            Err(UriSegmentError::BadStart('.'))
+        );
+
+        assert_eq!(
+            PathBufWrap::parse_path("/test/.tt", true).unwrap().0,
+            PathBuf::from_iter(vec!["test", ".tt"])
+        );
+    }
+}

actix-files/src/range.rs

@@ -0,0 +1,381 @@
+use derive_more::{Display, Error};
+
+/// HTTP Range header representation.
+#[derive(Debug, Clone, Copy)]
+pub struct HttpRange {
+    /// Start of range.
+    pub start: u64,
+
+    /// Length of range.
+    pub length: u64,
+}
+
+const PREFIX: &str = "bytes=";
+const PREFIX_LEN: usize = 6;
+
+#[derive(Debug, Clone, Display, Error)]
+#[display(fmt = "Parse HTTP Range failed")]
+pub struct ParseRangeErr(#[error(not(source))] ());
+
+impl HttpRange {
+    /// Parses Range HTTP header string as per RFC 2616.
+    ///
+    /// `header` is HTTP Range header (e.g. `bytes=bytes=0-9`).
+    /// `size` is full size of response (file).
+    pub fn parse(header: &str, size: u64) -> Result<Vec<HttpRange>, ParseRangeErr> {
+        if header.is_empty() {
+            return Ok(Vec::new());
+        }
+        if !header.starts_with(PREFIX) {
+            return Err(ParseRangeErr(()));
+        }
+
+        let size_sig = size as i64;
+        let mut no_overlap = false;
+
+        let all_ranges: Vec<Option<HttpRange>> = header[PREFIX_LEN..]
+            .split(',')
+            .map(|x| x.trim())
+            .filter(|x| !x.is_empty())
+            .map(|ra| {
+                let mut start_end_iter = ra.split('-');
+
+                let start_str = start_end_iter.next().ok_or(ParseRangeErr(()))?.trim();
+                let end_str = start_end_iter.next().ok_or(ParseRangeErr(()))?.trim();
+
+                if start_str.is_empty() {
+                    // If no start is specified, end specifies the
+                    // range start relative to the end of the file.
+                    let mut length: i64 =
+                        end_str.parse().map_err(|_| ParseRangeErr(()))?;
+
+                    if length > size_sig {
+                        length = size_sig;
+                    }
+
+                    Ok(Some(HttpRange {
+                        start: (size_sig - length) as u64,
+                        length: length as u64,
+                    }))
+                } else {
+                    let start: i64 = start_str.parse().map_err(|_| ParseRangeErr(()))?;
+
+                    if start < 0 {
+                        return Err(ParseRangeErr(()));
+                    }
+                    if start >= size_sig {
+                        no_overlap = true;
+                        return Ok(None);
+                    }
+
+                    let length = if end_str.is_empty() {
+                        // If no end is specified, range extends to end of the file.
+                        size_sig - start
+                    } else {
+                        let mut end: i64 =
+                            end_str.parse().map_err(|_| ParseRangeErr(()))?;
+
+                        if start > end {
+                            return Err(ParseRangeErr(()));
+                        }
+
+                        if end >= size_sig {
+                            end = size_sig - 1;
+                        }
+
+                        end - start + 1
+                    };
+
+                    Ok(Some(HttpRange {
+                        start: start as u64,
+                        length: length as u64,
+                    }))
+                }
+            })
+            .collect::<Result<_, _>>()?;
+
+        let ranges: Vec<HttpRange> = all_ranges.into_iter().filter_map(|x| x).collect();
+
+        if no_overlap && ranges.is_empty() {
+            return Err(ParseRangeErr(()));
+        }
+
+        Ok(ranges)
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    struct T(&'static str, u64, Vec<HttpRange>);
+
+    #[test]
+    fn test_parse() {
+        let tests = vec![
+            T("", 0, vec![]),
+            T("", 1000, vec![]),
+            T("foo", 0, vec![]),
+            T("bytes=", 0, vec![]),
+            T("bytes=7", 10, vec![]),
+            T("bytes= 7 ", 10, vec![]),
+            T("bytes=1-", 0, vec![]),
+            T("bytes=5-4", 10, vec![]),
+            T("bytes=0-2,5-4", 10, vec![]),
+            T("bytes=2-5,4-3", 10, vec![]),
+            T("bytes=--5,4--3", 10, vec![]),
+            T("bytes=A-", 10, vec![]),
+            T("bytes=A- ", 10, vec![]),
+            T("bytes=A-Z", 10, vec![]),
+            T("bytes= -Z", 10, vec![]),
+            T("bytes=5-Z", 10, vec![]),
+            T("bytes=Ran-dom, garbage", 10, vec![]),
+            T("bytes=0x01-0x02", 10, vec![]),
+            T("bytes=         ", 10, vec![]),
+            T("bytes= , , ,   ", 10, vec![]),
+            T(
+                "bytes=0-9",
+                10,
+                vec![HttpRange {
+                    start: 0,
+                    length: 10,
+                }],
+            ),
+            T(
+                "bytes=0-",
+                10,
+                vec![HttpRange {
+                    start: 0,
+                    length: 10,
+                }],
+            ),
+            T(
+                "bytes=5-",
+                10,
+                vec![HttpRange {
+                    start: 5,
+                    length: 5,
+                }],
+            ),
+            T(
+                "bytes=0-20",
+                10,
+                vec![HttpRange {
+                    start: 0,
+                    length: 10,
+                }],
+            ),
+            T(
+                "bytes=15-,0-5",
+                10,
+                vec![HttpRange {
+                    start: 0,
+                    length: 6,
+                }],
+            ),
+            T(
+                "bytes=1-2,5-",
+                10,
+                vec![
+                    HttpRange {
+                        start: 1,
+                        length: 2,
+                    },
+                    HttpRange {
+                        start: 5,
+                        length: 5,
+                    },
+                ],
+            ),
+            T(
+                "bytes=-2 , 7-",
+                11,
+                vec![
+                    HttpRange {
+                        start: 9,
+                        length: 2,
+                    },
+                    HttpRange {
+                        start: 7,
+                        length: 4,
+                    },
+                ],
+            ),
+            T(
+                "bytes=0-0 ,2-2, 7-",
+                11,
+                vec![
+                    HttpRange {
+                        start: 0,
+                        length: 1,
+                    },
+                    HttpRange {
+                        start: 2,
+                        length: 1,
+                    },
+                    HttpRange {
+                        start: 7,
+                        length: 4,
+                    },
+                ],
+            ),
+            T(
+                "bytes=-5",
+                10,
+                vec![HttpRange {
+                    start: 5,
+                    length: 5,
+                }],
+            ),
+            T(
+                "bytes=-15",
+                10,
+                vec![HttpRange {
+                    start: 0,
+                    length: 10,
+                }],
+            ),
+            T(
+                "bytes=0-499",
+                10000,
+                vec![HttpRange {
+                    start: 0,
+                    length: 500,
+                }],
+            ),
+            T(
+                "bytes=500-999",
+                10000,
+                vec![HttpRange {
+                    start: 500,
+                    length: 500,
+                }],
+            ),
+            T(
+                "bytes=-500",
+                10000,
+                vec![HttpRange {
+                    start: 9500,
+                    length: 500,
+                }],
+            ),
+            T(
+                "bytes=9500-",
+                10000,
+                vec![HttpRange {
+                    start: 9500,
+                    length: 500,
+                }],
+            ),
+            T(
+                "bytes=0-0,-1",
+                10000,
+                vec![
+                    HttpRange {
+                        start: 0,
+                        length: 1,
+                    },
+                    HttpRange {
+                        start: 9999,
+                        length: 1,
+                    },
+                ],
+            ),
+            T(
+                "bytes=500-600,601-999",
+                10000,
+                vec![
+                    HttpRange {
+                        start: 500,
+                        length: 101,
+                    },
+                    HttpRange {
+                        start: 601,
+                        length: 399,
+                    },
+                ],
+            ),
+            T(
+                "bytes=500-700,601-999",
+                10000,
+                vec![
+                    HttpRange {
+                        start: 500,
+                        length: 201,
+                    },
+                    HttpRange {
+                        start: 601,
+                        length: 399,
+                    },
+                ],
+            ),
+            // Match Apache laxity:
+            T(
+                "bytes=   1 -2   ,  4- 5, 7 - 8 , ,,",
+                11,
+                vec![
+                    HttpRange {
+                        start: 1,
+                        length: 2,
+                    },
+                    HttpRange {
+                        start: 4,
+                        length: 2,
+                    },
+                    HttpRange {
+                        start: 7,
+                        length: 2,
+                    },
+                ],
+            ),
+        ];
+
+        for t in tests {
+            let header = t.0;
+            let size = t.1;
+            let expected = t.2;
+
+            let res = HttpRange::parse(header, size);
+
+            if res.is_err() {
+                if expected.is_empty() {
+                    continue;
+                } else {
+                    panic!(
+                        "parse({}, {}) returned error {:?}",
+                        header,
+                        size,
+                        res.unwrap_err()
+                    );
+                }
+            }
+
+            let got = res.unwrap();
+
+            if got.len() != expected.len() {
+                panic!(
+                    "len(parseRange({}, {})) = {}, want {}",
+                    header,
+                    size,
+                    got.len(),
+                    expected.len()
+                );
+            }
+
+            for i in 0..expected.len() {
+                if got[i].start != expected[i].start {
+                    panic!(
+                        "parseRange({}, {})[{}].start = {}, want {}",
+                        header, size, i, got[i].start, expected[i].start
+                    )
+                }
+                if got[i].length != expected[i].length {
+                    panic!(
+                        "parseRange({}, {})[{}].length = {}, want {}",
+                        header, size, i, got[i].length, expected[i].length
+                    )
+                }
+            }
+        }
+    }
+}

actix-files/src/service.rs

@@ -0,0 +1,168 @@
+use std::{
+    fmt, io,
+    path::PathBuf,
+    rc::Rc,
+    task::{Context, Poll},
+};
+
+use actix_service::Service;
+use actix_web::{
+    dev::{ServiceRequest, ServiceResponse},
+    error::Error,
+    guard::Guard,
+    http::{header, Method},
+    HttpResponse,
+};
+use futures_util::future::{ok, Either, LocalBoxFuture, Ready};
+
+use crate::{
+    named, Directory, DirectoryRenderer, FilesError, HttpService, MimeOverride,
+    NamedFile, PathBufWrap,
+};
+
+/// Assembled file serving service.
+pub struct FilesService {
+    pub(crate) directory: PathBuf,
+    pub(crate) index: Option<String>,
+    pub(crate) show_index: bool,
+    pub(crate) redirect_to_slash: bool,
+    pub(crate) default: Option<HttpService>,
+    pub(crate) renderer: Rc<DirectoryRenderer>,
+    pub(crate) mime_override: Option<Rc<MimeOverride>>,
+    pub(crate) file_flags: named::Flags,
+    pub(crate) guards: Option<Rc<dyn Guard>>,
+    pub(crate) hidden_files: bool,
+}
+
+type FilesServiceFuture = Either<
+    Ready<Result<ServiceResponse, Error>>,
+    LocalBoxFuture<'static, Result<ServiceResponse, Error>>,
+>;
+
+impl FilesService {
+    fn handle_err(&mut self, e: io::Error, req: ServiceRequest) -> FilesServiceFuture {
+        log::debug!("Failed to handle {}: {}", req.path(), e);
+
+        if let Some(ref mut default) = self.default {
+            Either::Right(default.call(req))
+        } else {
+            Either::Left(ok(req.error_response(e)))
+        }
+    }
+}
+
+impl fmt::Debug for FilesService {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        f.write_str("FilesService")
+    }
+}
+
+impl Service<ServiceRequest> for FilesService {
+    type Response = ServiceResponse;
+    type Error = Error;
+    type Future = FilesServiceFuture;
+
+    fn poll_ready(&mut self, _: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
+        Poll::Ready(Ok(()))
+    }
+
+    fn call(&mut self, req: ServiceRequest) -> Self::Future {
+        let is_method_valid = if let Some(guard) = &self.guards {
+            // execute user defined guards
+            (**guard).check(req.head())
+        } else {
+            // default behavior
+            matches!(*req.method(), Method::HEAD | Method::GET)
+        };
+
+        if !is_method_valid {
+            return Either::Left(ok(req.into_response(
+                actix_web::HttpResponse::MethodNotAllowed()
+                    .header(header::CONTENT_TYPE, "text/plain")
+                    .body("Request did not meet this resource's requirements."),
+            )));
+        }
+
+        let real_path =
+            match PathBufWrap::parse_path(req.match_info().path(), self.hidden_files) {
+                Ok(item) => item,
+                Err(e) => return Either::Left(ok(req.error_response(e))),
+            };
+
+        // full file path
+        let path = match self.directory.join(&real_path).canonicalize() {
+            Ok(path) => path,
+            Err(e) => return self.handle_err(e, req),
+        };
+
+        if path.is_dir() {
+            if let Some(ref redir_index) = self.index {
+                if self.redirect_to_slash && !req.path().ends_with('/') {
+                    let redirect_to = format!("{}/", req.path());
+
+                    return Either::Left(ok(req.into_response(
+                        HttpResponse::Found()
+                            .header(header::LOCATION, redirect_to)
+                            .body("")
+                            .into_body(),
+                    )));
+                }
+
+                let path = path.join(redir_index);
+
+                match NamedFile::open(path) {
+                    Ok(mut named_file) => {
+                        if let Some(ref mime_override) = self.mime_override {
+                            let new_disposition =
+                                mime_override(&named_file.content_type.type_());
+                            named_file.content_disposition.disposition = new_disposition;
+                        }
+                        named_file.flags = self.file_flags;
+
+                        let (req, _) = req.into_parts();
+                        Either::Left(ok(match named_file.into_response(&req) {
+                            Ok(item) => ServiceResponse::new(req, item),
+                            Err(e) => ServiceResponse::from_err(e, req),
+                        }))
+                    }
+                    Err(e) => self.handle_err(e, req),
+                }
+            } else if self.show_index {
+                let dir = Directory::new(self.directory.clone(), path);
+
+                let (req, _) = req.into_parts();
+                let x = (self.renderer)(&dir, &req);
+
+                match x {
+                    Ok(resp) => Either::Left(ok(resp)),
+                    Err(e) => Either::Left(ok(ServiceResponse::from_err(e, req))),
+                }
+            } else {
+                Either::Left(ok(ServiceResponse::from_err(
+                    FilesError::IsDirectory,
+                    req.into_parts().0,
+                )))
+            }
+        } else {
+            match NamedFile::open(path) {
+                Ok(mut named_file) => {
+                    if let Some(ref mime_override) = self.mime_override {
+                        let new_disposition =
+                            mime_override(&named_file.content_type.type_());
+                        named_file.content_disposition.disposition = new_disposition;
+                    }
+                    named_file.flags = self.file_flags;
+
+                    let (req, _) = req.into_parts();
+                    match named_file.into_response(&req) {
+                        Ok(item) => {
+                            Either::Left(ok(ServiceResponse::new(req.clone(), item)))
+                        }
+                        Err(e) => Either::Left(ok(ServiceResponse::from_err(e, req))),
+                    }
+                }
+                Err(e) => self.handle_err(e, req),
+            }
+        }
+    }
+}

actix-files/tests/encoding.rs

@@ -0,0 +1,40 @@
+use actix_files::Files;
+use actix_web::{
+    http::{
+        header::{self, HeaderValue},
+        StatusCode,
+    },
+    test::{self, TestRequest},
+    App,
+};
+
+#[actix_rt::test]
+async fn test_utf8_file_contents() {
+    // use default ISO-8859-1 encoding
+    let mut srv =
+        test::init_service(App::new().service(Files::new("/", "./tests"))).await;
+
+    let req = TestRequest::with_uri("/utf8.txt").to_request();
+    let res = test::call_service(&mut srv, req).await;
+
+    assert_eq!(res.status(), StatusCode::OK);
+    assert_eq!(
+        res.headers().get(header::CONTENT_TYPE),
+        Some(&HeaderValue::from_static("text/plain")),
+    );
+
+    // prefer UTF-8 encoding
+    let mut srv = test::init_service(
+        App::new().service(Files::new("/", "./tests").prefer_utf8(true)),
+    )
+    .await;
+
+    let req = TestRequest::with_uri("/utf8.txt").to_request();
+    let res = test::call_service(&mut srv, req).await;
+
+    assert_eq!(res.status(), StatusCode::OK);
+    assert_eq!(
+        res.headers().get(header::CONTENT_TYPE),
+        Some(&HeaderValue::from_static("text/plain; charset=utf-8")),
+    );
+}

actix-files/tests/test.binary

@@ -0,0 +1 @@
+<EFBFBD>TǑɂV<EFBFBD>2<EFBFBD>vI<EFBFBD><EFBFBD><EFBFBD>\<5C>R˙<52><CB99><EFBFBD>e<EFBFBD><04>vD<76>:藽<>RV<03>Yp<59><70>;<3B><>G<><47>p!2<7F>C<EFBFBD>.<2E><0C><><EFBFBD><EFBFBD>pA!<21>ߦ<EFBFBD>x	j+Uc<55><63><EFBFBD>X<13>c%<17>;<3B>"y<10><>AI

actix-files/tests/utf8.txt

@@ -0,0 +1,3 @@
+中文内容显示正确。
+
+English is OK.

actix-http-test/CHANGES.md

@@ -0,0 +1,86 @@
+# Changes
+
+## Unreleased - 2021-xx-xx
+
+
+## 3.0.0-beta.1 - 2021-01-07
+* Update `bytes` to `1.0`. [#1813]
+
+[#1813]: https://github.com/actix/actix-web/pull/1813
+
+
+## 2.1.0 - 2020-11-25
+* Add ability to set address for `TestServer`. [#1645]
+* Upgrade `base64` to `0.13`.
+* Upgrade `serde_urlencoded` to `0.7`. [#1773]
+
+[#1773]: https://github.com/actix/actix-web/pull/1773
+[#1645]: https://github.com/actix/actix-web/pull/1645
+
+
+## 2.0.0 - 2020-09-11
+* Update actix-codec and actix-utils dependencies.
+
+
+## 2.0.0-alpha.1 - 2020-05-23
+* Update the `time` dependency to 0.2.7
+* Update `actix-connect` dependency to 2.0.0-alpha.2
+* Make `test_server` `async` fn.
+* Bump minimum supported Rust version to 1.40
+* Replace deprecated `net2` crate with `socket2`
+* Update `base64` dependency to 0.12
+* Update `env_logger` dependency to 0.7
+
+## 1.0.0 - 2019-12-13
+* Replaced `TestServer::start()` with `test_server()`
+
+
+## 1.0.0-alpha.3 - 2019-12-07
+* Migrate to `std::future`
+
+
+## 0.2.5 - 2019-09-17
+* Update serde_urlencoded to "0.6.1"
+* Increase TestServerRuntime timeouts from 500ms to 3000ms
+* Do not override current `System`
+
+
+## 0.2.4 - 2019-07-18
+* Update actix-server to 0.6
+
+
+## 0.2.3 - 2019-07-16
+* Add `delete`, `options`, `patch` methods to `TestServerRunner`
+
+
+## 0.2.2 - 2019-06-16
+* Add .put() and .sput() methods
+
+
+## 0.2.1 - 2019-06-05
+* Add license files
+
+
+## 0.2.0 - 2019-05-12
+* Update awc and actix-http deps
+
+
+## 0.1.1 - 2019-04-24
+* Always make new connection for http client
+
+
+## 0.1.0 - 2019-04-16
+* No changes
+
+
+## 0.1.0-alpha.3 - 2019-04-02
+* Request functions accept path #743
+
+
+## 0.1.0-alpha.2 - 2019-03-29
+* Added TestServerRuntime::load_body() method
+* Update actix-http and awc libraries
+
+
+## 0.1.0-alpha.1 - 2019-03-28
+* Initial impl

actix-http-test/Cargo.toml

@@ -0,0 +1,55 @@
+[package]
+name = "actix-http-test"
+version = "3.0.0-beta.1"
+authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
+description = "Various helpers for Actix applications to use during testing"
+readme = "README.md"
+keywords = ["http", "web", "framework", "async", "futures"]
+homepage = "https://actix.rs"
+repository = "https://github.com/actix/actix-web.git"
+documentation = "https://docs.rs/actix-http-test/"
+categories = ["network-programming", "asynchronous",
+              "web-programming::http-server",
+              "web-programming::websocket"]
+license = "MIT OR Apache-2.0"
+exclude = [".gitignore", ".cargo/config"]
+edition = "2018"
+
+[package.metadata.docs.rs]
+features = []
+
+[lib]
+name = "actix_http_test"
+path = "src/lib.rs"
+
+[features]
+default = []
+
+# openssl
+openssl = ["open-ssl", "awc/openssl"]
+
+[dependencies]
+actix-service = "2.0.0-beta.2"
+actix-codec = "0.4.0-beta.1"
+actix-tls = "3.0.0-beta.2"
+actix-utils = "3.0.0-beta.1"
+actix-rt = "2.0.0-beta.1"
+actix-server = "2.0.0-beta.2"
+awc = "3.0.0-beta.1"
+
+base64 = "0.13"
+bytes = "1"
+futures-core = { version = "0.3.7", default-features = false }
+http = "0.2.2"
+log = "0.4"
+socket2 = "0.3"
+serde = "1.0"
+serde_json = "1.0"
+slab = "0.4"
+serde_urlencoded = "0.7"
+time = { version = "0.2.7", default-features = false, features = ["std"] }
+open-ssl = { version = "0.10", package = "openssl", optional = true }
+
+[dev-dependencies]
+actix-web = "4.0.0-beta.1"
+actix-http = "3.0.0-beta.1"

actix-http-test/LICENSE-APACHE

@@ -0,0 +1 @@
+../LICENSE-APACHE

actix-http-test/LICENSE-MIT

@@ -0,0 +1 @@
+../LICENSE-MIT

actix-http-test/README.md

@@ -0,0 +1,15 @@
+# actix-http-test
+
+> Various helpers for Actix applications to use during testing.
+
+[![crates.io](https://img.shields.io/crates/v/actix-http-test?label=latest)](https://crates.io/crates/actix-http-test)
+[![Documentation](https://docs.rs/actix-http-test/badge.svg?version=2.1.0)](https://docs.rs/actix-http-test/2.1.0)
+![Apache 2.0 or MIT licensed](https://img.shields.io/crates/l/actix-http-test)
+[![Dependency Status](https://deps.rs/crate/actix-http-test/2.1.0/status.svg)](https://deps.rs/crate/actix-http-test/2.1.0)
+[![Join the chat at https://gitter.im/actix/actix-web](https://badges.gitter.im/actix/actix-web.svg)](https://gitter.im/actix/actix-web?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+
+## Documentation & Resources
+
+- [API Documentation](https://docs.rs/actix-http-test)
+- [Chat on Gitter](https://gitter.im/actix/actix-web)
+- Minimum Supported Rust Version (MSRV): 1.46.0

actix-http-test/src/lib.rs

@@ -0,0 +1,274 @@
+//! Various helpers for Actix applications to use during testing.
+
+#![deny(rust_2018_idioms)]
+#![doc(html_logo_url = "https://actix.rs/img/logo.png")]
+#![doc(html_favicon_url = "https://actix.rs/favicon.ico")]
+
+use std::sync::mpsc;
+use std::{net, thread, time};
+
+use actix_codec::{AsyncRead, AsyncWrite, Framed};
+use actix_rt::{net::TcpStream, System};
+use actix_server::{Server, ServiceFactory};
+use awc::{error::PayloadError, ws, Client, ClientRequest, ClientResponse, Connector};
+use bytes::Bytes;
+use futures_core::stream::Stream;
+use http::Method;
+use socket2::{Domain, Protocol, Socket, Type};
+
+/// Start test server
+///
+/// `TestServer` is very simple test server that simplify process of writing
+/// integration tests cases for actix web applications.
+///
+/// # Examples
+///
+/// ```rust
+/// use actix_http::HttpService;
+/// use actix_http_test::TestServer;
+/// use actix_web::{web, App, HttpResponse, Error};
+///
+/// async fn my_handler() -> Result<HttpResponse, Error> {
+///     Ok(HttpResponse::Ok().into())
+/// }
+///
+/// #[actix_rt::test]
+/// async fn test_example() {
+///     let mut srv = TestServer::start(
+///         || HttpService::new(
+///             App::new().service(
+///                 web::resource("/").to(my_handler))
+///         )
+///     );
+///
+///     let req = srv.get("/");
+///     let response = req.send().await.unwrap();
+///     assert!(response.status().is_success());
+/// }
+/// ```
+pub async fn test_server<F: ServiceFactory<TcpStream>>(factory: F) -> TestServer {
+    let tcp = net::TcpListener::bind("127.0.0.1:0").unwrap();
+    test_server_with_addr(tcp, factory).await
+}
+
+/// Start [`test server`](test_server()) on a concrete Address
+pub async fn test_server_with_addr<F: ServiceFactory<TcpStream>>(
+    tcp: net::TcpListener,
+    factory: F,
+) -> TestServer {
+    let (tx, rx) = mpsc::channel();
+
+    // run server in separate thread
+    thread::spawn(move || {
+        let sys = System::new("actix-test-server");
+        let local_addr = tcp.local_addr().unwrap();
+
+        let srv = Server::build()
+            .listen("test", tcp, factory)?
+            .workers(1)
+            .disable_signals();
+
+        sys.block_on(async {
+            srv.start();
+            tx.send((System::current(), local_addr)).unwrap();
+        });
+
+        sys.run()
+    });
+
+    let (system, addr) = rx.recv().unwrap();
+
+    let client = {
+        let connector = {
+            #[cfg(feature = "openssl")]
+            {
+                use open_ssl::ssl::{SslConnector, SslMethod, SslVerifyMode};
+
+                let mut builder = SslConnector::builder(SslMethod::tls()).unwrap();
+                builder.set_verify(SslVerifyMode::NONE);
+                let _ = builder
+                    .set_alpn_protos(b"\x02h2\x08http/1.1")
+                    .map_err(|e| log::error!("Can not set alpn protocol: {:?}", e));
+                Connector::new()
+                    .conn_lifetime(time::Duration::from_secs(0))
+                    .timeout(time::Duration::from_millis(30000))
+                    .ssl(builder.build())
+                    .finish()
+            }
+            #[cfg(not(feature = "openssl"))]
+            {
+                Connector::new()
+                    .conn_lifetime(time::Duration::from_secs(0))
+                    .timeout(time::Duration::from_millis(30000))
+                    .finish()
+            }
+        };
+
+        Client::builder().connector(connector).finish()
+    };
+    actix_tls::connect::start_default_resolver().await.unwrap();
+
+    TestServer {
+        addr,
+        client,
+        system,
+    }
+}
+
+/// Get first available unused address
+pub fn unused_addr() -> net::SocketAddr {
+    let addr: net::SocketAddr = "127.0.0.1:0".parse().unwrap();
+    let socket =
+        Socket::new(Domain::ipv4(), Type::stream(), Some(Protocol::tcp())).unwrap();
+    socket.bind(&addr.into()).unwrap();
+    socket.set_reuse_address(true).unwrap();
+    let tcp = socket.into_tcp_listener();
+    tcp.local_addr().unwrap()
+}
+
+/// Test server controller
+pub struct TestServer {
+    addr: net::SocketAddr,
+    client: Client,
+    system: System,
+}
+
+impl TestServer {
+    /// Construct test server url
+    pub fn addr(&self) -> net::SocketAddr {
+        self.addr
+    }
+
+    /// Construct test server url
+    pub fn url(&self, uri: &str) -> String {
+        if uri.starts_with('/') {
+            format!("http://localhost:{}{}", self.addr.port(), uri)
+        } else {
+            format!("http://localhost:{}/{}", self.addr.port(), uri)
+        }
+    }
+
+    /// Construct test https server url
+    pub fn surl(&self, uri: &str) -> String {
+        if uri.starts_with('/') {
+            format!("https://localhost:{}{}", self.addr.port(), uri)
+        } else {
+            format!("https://localhost:{}/{}", self.addr.port(), uri)
+        }
+    }
+
+    /// Create `GET` request
+    pub fn get<S: AsRef<str>>(&self, path: S) -> ClientRequest {
+        self.client.get(self.url(path.as_ref()).as_str())
+    }
+
+    /// Create https `GET` request
+    pub fn sget<S: AsRef<str>>(&self, path: S) -> ClientRequest {
+        self.client.get(self.surl(path.as_ref()).as_str())
+    }
+
+    /// Create `POST` request
+    pub fn post<S: AsRef<str>>(&self, path: S) -> ClientRequest {
+        self.client.post(self.url(path.as_ref()).as_str())
+    }
+
+    /// Create https `POST` request
+    pub fn spost<S: AsRef<str>>(&self, path: S) -> ClientRequest {
+        self.client.post(self.surl(path.as_ref()).as_str())
+    }
+
+    /// Create `HEAD` request
+    pub fn head<S: AsRef<str>>(&self, path: S) -> ClientRequest {
+        self.client.head(self.url(path.as_ref()).as_str())
+    }
+
+    /// Create https `HEAD` request
+    pub fn shead<S: AsRef<str>>(&self, path: S) -> ClientRequest {
+        self.client.head(self.surl(path.as_ref()).as_str())
+    }
+
+    /// Create `PUT` request
+    pub fn put<S: AsRef<str>>(&self, path: S) -> ClientRequest {
+        self.client.put(self.url(path.as_ref()).as_str())
+    }
+
+    /// Create https `PUT` request
+    pub fn sput<S: AsRef<str>>(&self, path: S) -> ClientRequest {
+        self.client.put(self.surl(path.as_ref()).as_str())
+    }
+
+    /// Create `PATCH` request
+    pub fn patch<S: AsRef<str>>(&self, path: S) -> ClientRequest {
+        self.client.patch(self.url(path.as_ref()).as_str())
+    }
+
+    /// Create https `PATCH` request
+    pub fn spatch<S: AsRef<str>>(&self, path: S) -> ClientRequest {
+        self.client.patch(self.surl(path.as_ref()).as_str())
+    }
+
+    /// Create `DELETE` request
+    pub fn delete<S: AsRef<str>>(&self, path: S) -> ClientRequest {
+        self.client.delete(self.url(path.as_ref()).as_str())
+    }
+
+    /// Create https `DELETE` request
+    pub fn sdelete<S: AsRef<str>>(&self, path: S) -> ClientRequest {
+        self.client.delete(self.surl(path.as_ref()).as_str())
+    }
+
+    /// Create `OPTIONS` request
+    pub fn options<S: AsRef<str>>(&self, path: S) -> ClientRequest {
+        self.client.options(self.url(path.as_ref()).as_str())
+    }
+
+    /// Create https `OPTIONS` request
+    pub fn soptions<S: AsRef<str>>(&self, path: S) -> ClientRequest {
+        self.client.options(self.surl(path.as_ref()).as_str())
+    }
+
+    /// Connect to test http server
+    pub fn request<S: AsRef<str>>(&self, method: Method, path: S) -> ClientRequest {
+        self.client.request(method, path.as_ref())
+    }
+
+    pub async fn load_body<S>(
+        &mut self,
+        mut response: ClientResponse<S>,
+    ) -> Result<Bytes, PayloadError>
+    where
+        S: Stream<Item = Result<Bytes, PayloadError>> + Unpin + 'static,
+    {
+        response.body().limit(10_485_760).await
+    }
+
+    /// Connect to websocket server at a given path
+    pub async fn ws_at(
+        &mut self,
+        path: &str,
+    ) -> Result<Framed<impl AsyncRead + AsyncWrite, ws::Codec>, awc::error::WsClientError>
+    {
+        let url = self.url(path);
+        let connect = self.client.ws(url).connect();
+        connect.await.map(|(_, framed)| framed)
+    }
+
+    /// Connect to a websocket server
+    pub async fn ws(
+        &mut self,
+    ) -> Result<Framed<impl AsyncRead + AsyncWrite, ws::Codec>, awc::error::WsClientError>
+    {
+        self.ws_at("/").await
+    }
+
+    /// Stop http server
+    fn stop(&mut self) {
+        self.system.stop();
+    }
+}
+
+impl Drop for TestServer {
+    fn drop(&mut self) {
+        self.stop()
+    }
+}

actix-http/CHANGES.md

@@ -0,0 +1,475 @@
+# Changes
+
+## Unreleased - 2021-xx-xx
+
+
+## 3.0.0-beta.1 - 2021-01-07
+### Added
+* Add `Http3` to `Protocol` enum for future compatibility and also mark `#[non_exhaustive]`.
+
+### Changed
+* Update `actix-*` dependencies to tokio `1.0` based versions. [#1813]
+* Bumped `rand` to `0.8`.
+* Update `bytes` to `1.0`. [#1813]
+* Update `h2` to `0.3`. [#1813]
+* The `ws::Message::Text` enum variant now contains a `bytestring::ByteString`. [#1864]
+
+### Removed
+* Deprecated `on_connect` methods have been removed. Prefer the new
+  `on_connect_ext` technique. [#1857]
+* Remove `ResponseError` impl for `actix::actors::resolver::ResolverError`
+  due to deprecate of resolver actor. [#1813]
+* Remove `ConnectError::SslHandshakeError` and re-export of `HandshakeError`.
+  due to the removal of this type from `tokio-openssl` crate. openssl handshake 
+  error would return as `ConnectError::SslError`. [#1813]
+
+[#1813]: https://github.com/actix/actix-web/pull/1813
+[#1857]: https://github.com/actix/actix-web/pull/1857
+[#1864]: https://github.com/actix/actix-web/pull/1864
+
+
+## 2.2.0 - 2020-11-25
+### Added
+* HttpResponse builders for 1xx status codes. [#1768]
+* `Accept::mime_precedence` and `Accept::mime_preference`. [#1793]
+* `TryFrom<u16>` and `TryFrom<f32>` for `http::header::Quality`. [#1797]
+
+### Fixed
+* Started dropping `transfer-encoding: chunked` and `Content-Length` for 1XX and 204 responses. [#1767]
+
+### Changed
+* Upgrade `serde_urlencoded` to `0.7`. [#1773]
+
+[#1773]: https://github.com/actix/actix-web/pull/1773
+[#1767]: https://github.com/actix/actix-web/pull/1767
+[#1768]: https://github.com/actix/actix-web/pull/1768
+[#1793]: https://github.com/actix/actix-web/pull/1793
+[#1797]: https://github.com/actix/actix-web/pull/1797
+
+
+## 2.1.0 - 2020-10-30
+### Added
+* Added more flexible `on_connect_ext` methods for on-connect handling. [#1754]
+
+### Changed
+* Upgrade `base64` to `0.13`. [#1744]
+* Upgrade `pin-project` to `1.0`. [#1733]
+* Deprecate `ResponseBuilder::{if_some, if_true}`. [#1760]
+
+[#1760]: https://github.com/actix/actix-web/pull/1760
+[#1754]: https://github.com/actix/actix-web/pull/1754
+[#1733]: https://github.com/actix/actix-web/pull/1733
+[#1744]: https://github.com/actix/actix-web/pull/1744
+
+
+## 2.0.0 - 2020-09-11
+* No significant changes from `2.0.0-beta.4`.
+
+
+## 2.0.0-beta.4 - 2020-09-09
+### Changed
+* Update actix-codec and actix-utils dependencies.
+* Update actix-connect and actix-tls dependencies.
+
+
+## [2.0.0-beta.3] - 2020-08-14
+
+### Fixed
+* Memory leak of `client::pool::ConnectorPoolSupport`. [#1626]
+
+[#1626]: https://github.com/actix/actix-web/pull/1626
+
+
+## [2.0.0-beta.2] - 2020-07-21
+### Fixed
+* Potential UB in h1 decoder using uninitialized memory. [#1614]
+
+### Changed
+* Fix illegal chunked encoding. [#1615]
+
+[#1614]: https://github.com/actix/actix-web/pull/1614
+[#1615]: https://github.com/actix/actix-web/pull/1615
+
+
+## [2.0.0-beta.1] - 2020-07-11
+
+### Changed
+
+* Migrate cookie handling to `cookie` crate. [#1558]
+* Update `sha-1` to 0.9. [#1586]
+* Fix leak in client pool. [#1580]
+* MSRV is now 1.41.1.
+
+[#1558]: https://github.com/actix/actix-web/pull/1558
+[#1586]: https://github.com/actix/actix-web/pull/1586
+[#1580]: https://github.com/actix/actix-web/pull/1580
+
+## [2.0.0-alpha.4] - 2020-05-21
+
+### Changed
+
+* Bump minimum supported Rust version to 1.40
+* content_length function is removed, and you can set Content-Length by calling no_chunking function [#1439]
+* `BodySize::Sized64` variant has been removed. `BodySize::Sized` now receives a
+  `u64` instead of a `usize`.
+* Update `base64` dependency to 0.12
+
+### Fixed
+
+* Support parsing of `SameSite=None` [#1503]
+
+[#1439]: https://github.com/actix/actix-web/pull/1439
+[#1503]: https://github.com/actix/actix-web/pull/1503
+
+## [2.0.0-alpha.3] - 2020-05-08
+
+### Fixed
+
+* Correct spelling of ConnectError::Unresolved [#1487]
+* Fix a mistake in the encoding of websocket continuation messages wherein
+  Item::FirstText and Item::FirstBinary are each encoded as the other.
+
+### Changed
+
+* Implement `std::error::Error` for our custom errors [#1422]
+* Remove `failure` support for `ResponseError` since that crate
+  will be deprecated in the near future.
+
+[#1422]: https://github.com/actix/actix-web/pull/1422
+[#1487]: https://github.com/actix/actix-web/pull/1487
+
+## [2.0.0-alpha.2] - 2020-03-07
+
+### Changed
+
+* Update `actix-connect` and `actix-tls` dependency to 2.0.0-alpha.1. [#1395]
+
+* Change default initial window size and connection window size for HTTP2 to 2MB and 1MB respectively
+  to improve download speed for awc when downloading large objects. [#1394]
+
+* client::Connector accepts initial_window_size and initial_connection_window_size HTTP2 configuration. [#1394]
+
+* client::Connector allowing to set max_http_version to limit HTTP version to be used. [#1394]
+
+[#1394]: https://github.com/actix/actix-web/pull/1394
+[#1395]: https://github.com/actix/actix-web/pull/1395
+
+## [2.0.0-alpha.1] - 2020-02-27
+
+### Changed
+
+* Update the `time` dependency to 0.2.7.
+* Moved actors messages support from actix crate, enabled with feature `actors`.
+* Breaking change: trait MessageBody requires Unpin and accepting Pin<&mut Self> instead of &mut self in the poll_next().
+* MessageBody is not implemented for &'static [u8] anymore.
+
+### Fixed
+
+* Allow `SameSite=None` cookies to be sent in a response.
+
+## [1.0.1] - 2019-12-20
+
+### Fixed
+
+* Poll upgrade service's readiness from HTTP service handlers
+
+* Replace brotli with brotli2 #1224
+
+## [1.0.0] - 2019-12-13
+
+### Added
+
+* Add websockets continuation frame support
+
+### Changed
+
+* Replace `flate2-xxx` features with `compress`
+
+## [1.0.0-alpha.5] - 2019-12-09
+
+### Fixed
+
+* Check `Upgrade` service readiness before calling it
+
+* Fix buffer remaining capacity calcualtion
+
+### Changed
+
+* Websockets: Ping and Pong should have binary data #1049
+
+## [1.0.0-alpha.4] - 2019-12-08
+
+### Added
+
+* Add impl ResponseBuilder for Error
+
+### Changed
+
+* Use rust based brotli compression library
+
+## [1.0.0-alpha.3] - 2019-12-07
+
+### Changed
+
+* Migrate to tokio 0.2
+
+* Migrate to `std::future`
+
+
+## [0.2.11] - 2019-11-06
+
+### Added
+
+* Add support for serde_json::Value to be passed as argument to ResponseBuilder.body()
+
+* Add an additional `filename*` param in the `Content-Disposition` header of `actix_files::NamedFile` to be more compatible. (#1151)
+
+* Allow to use `std::convert::Infallible` as `actix_http::error::Error`
+
+### Fixed
+
+* To be compatible with non-English error responses, `ResponseError` rendered with `text/plain; charset=utf-8` header #1118
+
+
+## [0.2.10] - 2019-09-11
+
+### Added
+
+* Add support for sending HTTP requests with `Rc<RequestHead>` in addition to sending HTTP requests with `RequestHead`
+
+### Fixed
+
+* h2 will use error response #1080
+
+* on_connect result isn't added to request extensions for http2 requests #1009
+
+
+## [0.2.9] - 2019-08-13
+
+### Changed
+
+* Dropped the `byteorder`-dependency in favor of `stdlib`-implementation
+
+* Update percent-encoding to 2.1
+
+* Update serde_urlencoded to 0.6.1
+
+### Fixed
+
+* Fixed a panic in the HTTP2 handshake in client HTTP requests (#1031)
+
+
+## [0.2.8] - 2019-08-01
+
+### Added
+
+* Add `rustls` support
+
+* Add `Clone` impl for `HeaderMap`
+
+### Fixed
+
+* awc client panic #1016
+
+* Invalid response with compression middleware enabled, but compression-related features disabled #997
+
+
+## [0.2.7] - 2019-07-18
+
+### Added
+
+* Add support for downcasting response errors #986
+
+
+## [0.2.6] - 2019-07-17
+
+### Changed
+
+* Replace `ClonableService` with local copy
+
+* Upgrade `rand` dependency version to 0.7
+
+
+## [0.2.5] - 2019-06-28
+
+### Added
+
+* Add `on-connect` callback, `HttpServiceBuilder::on_connect()` #946
+
+### Changed
+
+* Use `encoding_rs` crate instead of unmaintained `encoding` crate
+
+* Add `Copy` and `Clone` impls for `ws::Codec`
+
+
+## [0.2.4] - 2019-06-16
+
+### Fixed
+
+* Do not compress NoContent (204) responses #918
+
+
+## [0.2.3] - 2019-06-02
+
+### Added
+
+* Debug impl for ResponseBuilder
+
+* From SizedStream and BodyStream for Body
+
+### Changed
+
+* SizedStream uses u64
+
+
+## [0.2.2] - 2019-05-29
+
+### Fixed
+
+* Parse incoming stream before closing stream on disconnect #868
+
+
+## [0.2.1] - 2019-05-25
+
+### Fixed
+
+* Handle socket read disconnect
+
+
+## [0.2.0] - 2019-05-12
+
+### Changed
+
+* Update actix-service to 0.4
+
+* Expect and upgrade services accept `ServerConfig` config.
+
+### Deleted
+
+* `OneRequest` service
+
+
+## [0.1.5] - 2019-05-04
+
+### Fixed
+
+* Clean up response extensions in response pool #817
+
+
+## [0.1.4] - 2019-04-24
+
+### Added
+
+* Allow to render h1 request headers in `Camel-Case`
+
+### Fixed
+
+* Read until eof for http/1.0 responses #771
+
+
+## [0.1.3] - 2019-04-23
+
+### Fixed
+
+* Fix http client pool management
+
+* Fix http client wait queue management #794
+
+
+## [0.1.2] - 2019-04-23
+
+### Fixed
+
+* Fix BorrowMutError panic in client connector #793
+
+
+## [0.1.1] - 2019-04-19
+
+### Changed
+
+* Cookie::max_age() accepts value in seconds
+
+* Cookie::max_age_time() accepts value in time::Duration
+
+* Allow to specify server address for client connector
+
+
+## [0.1.0] - 2019-04-16
+
+### Added
+
+* Expose peer addr via `Request::peer_addr()` and `RequestHead::peer_addr`
+
+### Changed
+
+* `actix_http::encoding` always available
+
+* use trust-dns-resolver 0.11.0
+
+
+## [0.1.0-alpha.5] - 2019-04-12
+
+### Added
+
+* Allow to use custom service for upgrade requests
+
+* Added `h1::SendResponse` future.
+
+### Changed
+
+* MessageBody::length() renamed to MessageBody::size() for consistency
+
+* ws handshake verification functions take RequestHead instead of Request
+
+
+## [0.1.0-alpha.4] - 2019-04-08
+
+### Added
+
+* Allow to use custom `Expect` handler
+
+* Add minimal `std::error::Error` impl for `Error`
+
+### Changed
+
+* Export IntoHeaderValue
+
+* Render error and return as response body
+
+* Use thread pool for response body comression
+
+### Deleted
+
+* Removed PayloadBuffer
+
+
+## [0.1.0-alpha.3] - 2019-04-02
+
+### Added
+
+* Warn when an unsealed private cookie isn't valid UTF-8
+
+### Fixed
+
+* Rust 1.31.0 compatibility
+
+* Preallocate read buffer for h1 codec
+
+* Detect socket disconnection during protocol selection
+
+
+## [0.1.0-alpha.2] - 2019-03-29
+
+### Added
+
+* Added ws::Message::Nop, no-op websockets message
+
+### Changed
+
+* Do not use thread pool for decomression if chunk size is smaller than 2048.
+
+
+## [0.1.0-alpha.1] - 2019-03-28
+
+* Initial impl

actix-http/Cargo.toml

@@ -0,0 +1,108 @@
+[package]
+name = "actix-http"
+version = "3.0.0-beta.1"
+authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
+description = "HTTP primitives for the Actix ecosystem"
+readme = "README.md"
+keywords = ["actix", "http", "framework", "async", "futures"]
+homepage = "https://actix.rs"
+repository = "https://github.com/actix/actix-web.git"
+documentation = "https://docs.rs/actix-http/"
+categories = ["network-programming", "asynchronous",
+              "web-programming::http-server",
+              "web-programming::websocket"]
+license = "MIT OR Apache-2.0"
+edition = "2018"
+
+[package.metadata.docs.rs]
+features = ["openssl", "rustls", "compress", "secure-cookies", "actors"]
+
+[lib]
+name = "actix_http"
+path = "src/lib.rs"
+
+[features]
+default = []
+
+# openssl
+openssl = ["actix-tls/openssl"]
+
+# rustls support
+rustls = ["actix-tls/rustls"]
+
+# enable compressison support
+compress = ["flate2", "brotli2"]
+
+# support for secure cookies
+secure-cookies = ["cookie/secure"]
+
+# support for actix Actor messages
+actors = ["actix"]
+
+[dependencies]
+actix-service = "2.0.0-beta.2"
+actix-codec = "0.4.0-beta.1"
+actix-utils = "3.0.0-beta.1"
+actix-rt = "2.0.0-beta.1"
+actix-threadpool = "0.3.1"
+actix-tls = "3.0.0-beta.2"
+actix = { version = "0.11.0-beta.1", optional = true }
+
+base64 = "0.13"
+bitflags = "1.2"
+bytes = "1"
+bytestring = "1"
+cookie = { version = "0.14.1", features = ["percent-encode"] }
+copyless = "0.1.4"
+derive_more = "0.99.5"
+either = "1.5.3"
+encoding_rs = "0.8"
+futures-channel = { version = "0.3.7", default-features = false }
+futures-core = { version = "0.3.7", default-features = false }
+futures-util = { version = "0.3.7", default-features = false, features = ["sink"] }
+fxhash = "0.2.1"
+h2 = "0.3.0"
+http = "0.2.2"
+httparse = "1.3"
+indexmap = "1.3"
+itoa = "0.4"
+lazy_static = "1.4"
+language-tags = "0.2"
+log = "0.4"
+mime = "0.3"
+percent-encoding = "2.1"
+pin-project = "1.0.0"
+rand = "0.8"
+regex = "1.3"
+serde = "1.0"
+serde_json = "1.0"
+sha-1 = "0.9"
+slab = "0.4"
+serde_urlencoded = "0.7"
+time = { version = "0.2.7", default-features = false, features = ["std"] }
+
+# compression
+brotli2 = { version="0.3.2", optional = true }
+flate2 = { version = "1.0.13", optional = true }
+
+[dev-dependencies]
+actix-server = "2.0.0-beta.2"
+actix-http-test = { version = "3.0.0-beta.1", features = ["openssl"] }
+actix-tls = { version = "3.0.0-beta.2", features = ["openssl"] }
+criterion = "0.3"
+env_logger = "0.7"
+serde_derive = "1.0"
+open-ssl = { version="0.10", package = "openssl" }
+rust-tls = { version="0.19", package = "rustls" }
+
+[[bench]]
+name = "write-camel-case"
+harness = false
+
+[[bench]]
+name = "status-line"
+harness = false
+
+[[bench]]
+name = "uninit-headers"
+harness = false

actix-http/LICENSE-APACHE

@@ -0,0 +1 @@
+../LICENSE-APACHE

actix-http/LICENSE-MIT

@@ -0,0 +1 @@
+../LICENSE-MIT

actix-http/README.md

@@ -0,0 +1,64 @@
+# actix-http
+
+> HTTP primitives for the Actix ecosystem.
+
+[![crates.io](https://img.shields.io/crates/v/actix-http?label=latest)](https://crates.io/crates/actix-http)
+[![Documentation](https://docs.rs/actix-http/badge.svg?version=2.2.0)](https://docs.rs/actix-http/2.2.0)
+![Apache 2.0 or MIT licensed](https://img.shields.io/crates/l/actix-http)
+[![Dependency Status](https://deps.rs/crate/actix-http/2.2.0/status.svg)](https://deps.rs/crate/actix-http/2.2.0)
+[![Join the chat at https://gitter.im/actix/actix-web](https://badges.gitter.im/actix/actix-web.svg)](https://gitter.im/actix/actix-web?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+
+## Documentation & Resources
+
+- [API Documentation](https://docs.rs/actix-http)
+- [Chat on Gitter](https://gitter.im/actix/actix-web)
+- Minimum Supported Rust Version (MSRV): 1.46.0
+
+## Example
+
+```rust
+use std::{env, io};
+
+use actix_http::{HttpService, Response};
+use actix_server::Server;
+use futures_util::future;
+use http::header::HeaderValue;
+use log::info;
+
+#[actix_rt::main]
+async fn main() -> io::Result<()> {
+    env::set_var("RUST_LOG", "hello_world=info");
+    env_logger::init();
+
+    Server::build()
+        .bind("hello-world", "127.0.0.1:8080", || {
+            HttpService::build()
+                .client_timeout(1000)
+                .client_disconnect(1000)
+                .finish(|_req| {
+                    info!("{:?}", _req);
+                    let mut res = Response::Ok();
+                    res.header("x-head", HeaderValue::from_static("dummy value!"));
+                    future::ok::<_, ()>(res.body("Hello world!"))
+                })
+                .tcp()
+        })?
+        .run()
+        .await
+}
+```
+
+## License
+
+This project is licensed under either of
+
+* Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or [http://www.apache.org/licenses/LICENSE-2.0](http://www.apache.org/licenses/LICENSE-2.0))
+* MIT license ([LICENSE-MIT](LICENSE-MIT) or [http://opensource.org/licenses/MIT](http://opensource.org/licenses/MIT))
+
+at your option.
+
+## Code of Conduct
+
+Contribution to the actix-http crate is organized under the terms of the
+Contributor Covenant, the maintainer of actix-http, @fafhrd91, promises to
+intervene to uphold that code of conduct.

actix-http/benches/status-line.rs

@@ -0,0 +1,222 @@
+use criterion::{criterion_group, criterion_main, BenchmarkId, Criterion};
+
+use bytes::BytesMut;
+use http::Version;
+
+const CODES: &[u16] = &[201, 303, 404, 515];
+
+fn bench_write_status_line_11(c: &mut Criterion) {
+    let mut group = c.benchmark_group("write_status_line v1.1");
+
+    let version = Version::HTTP_11;
+
+    for i in CODES.iter() {
+        group.bench_with_input(BenchmarkId::new("Original (unsafe)", i), i, |b, &i| {
+            b.iter(|| {
+                let mut b = BytesMut::with_capacity(35);
+                _original::write_status_line(version, i, &mut b);
+            })
+        });
+
+        group.bench_with_input(BenchmarkId::new("New (safe)", i), i, |b, &i| {
+            b.iter(|| {
+                let mut b = BytesMut::with_capacity(35);
+                _new::write_status_line(version, i, &mut b);
+            })
+        });
+
+        group.bench_with_input(BenchmarkId::new("Naive", i), i, |b, &i| {
+            b.iter(|| {
+                let mut b = BytesMut::with_capacity(35);
+                _naive::write_status_line(version, i, &mut b);
+            })
+        });
+    }
+
+    group.finish();
+}
+
+fn bench_write_status_line_10(c: &mut Criterion) {
+    let mut group = c.benchmark_group("write_status_line v1.0");
+
+    let version = Version::HTTP_10;
+
+    for i in CODES.iter() {
+        group.bench_with_input(BenchmarkId::new("Original (unsafe)", i), i, |b, &i| {
+            b.iter(|| {
+                let mut b = BytesMut::with_capacity(35);
+                _original::write_status_line(version, i, &mut b);
+            })
+        });
+
+        group.bench_with_input(BenchmarkId::new("New (safe)", i), i, |b, &i| {
+            b.iter(|| {
+                let mut b = BytesMut::with_capacity(35);
+                _new::write_status_line(version, i, &mut b);
+            })
+        });
+
+        group.bench_with_input(BenchmarkId::new("Naive", i), i, |b, &i| {
+            b.iter(|| {
+                let mut b = BytesMut::with_capacity(35);
+                _naive::write_status_line(version, i, &mut b);
+            })
+        });
+    }
+
+    group.finish();
+}
+
+fn bench_write_status_line_09(c: &mut Criterion) {
+    let mut group = c.benchmark_group("write_status_line v0.9");
+
+    let version = Version::HTTP_09;
+
+    for i in CODES.iter() {
+        group.bench_with_input(BenchmarkId::new("Original (unsafe)", i), i, |b, &i| {
+            b.iter(|| {
+                let mut b = BytesMut::with_capacity(35);
+                _original::write_status_line(version, i, &mut b);
+            })
+        });
+
+        group.bench_with_input(BenchmarkId::new("New (safe)", i), i, |b, &i| {
+            b.iter(|| {
+                let mut b = BytesMut::with_capacity(35);
+                _new::write_status_line(version, i, &mut b);
+            })
+        });
+
+        group.bench_with_input(BenchmarkId::new("Naive", i), i, |b, &i| {
+            b.iter(|| {
+                let mut b = BytesMut::with_capacity(35);
+                _naive::write_status_line(version, i, &mut b);
+            })
+        });
+    }
+
+    group.finish();
+}
+
+criterion_group!(
+    benches,
+    bench_write_status_line_11,
+    bench_write_status_line_10,
+    bench_write_status_line_09
+);
+criterion_main!(benches);
+
+mod _naive {
+    use bytes::{BufMut, BytesMut};
+    use http::Version;
+
+    pub(crate) fn write_status_line(version: Version, n: u16, bytes: &mut BytesMut) {
+        match version {
+            Version::HTTP_11 => bytes.put_slice(b"HTTP/1.1 "),
+            Version::HTTP_10 => bytes.put_slice(b"HTTP/1.0 "),
+            Version::HTTP_09 => bytes.put_slice(b"HTTP/0.9 "),
+            _ => {
+                // other HTTP version handlers do not use this method
+            }
+        }
+
+        bytes.put_slice(n.to_string().as_bytes());
+    }
+}
+
+mod _new {
+    use bytes::{BufMut, BytesMut};
+    use http::Version;
+
+    const DIGITS_START: u8 = b'0';
+
+    pub(crate) fn write_status_line(version: Version, n: u16, bytes: &mut BytesMut) {
+        match version {
+            Version::HTTP_11 => bytes.put_slice(b"HTTP/1.1 "),
+            Version::HTTP_10 => bytes.put_slice(b"HTTP/1.0 "),
+            Version::HTTP_09 => bytes.put_slice(b"HTTP/0.9 "),
+            _ => {
+                // other HTTP version handlers do not use this method
+            }
+        }
+
+        let d100 = (n / 100) as u8;
+        let d10 = ((n / 10) % 10) as u8;
+        let d1 = (n % 10) as u8;
+
+        bytes.put_u8(DIGITS_START + d100);
+        bytes.put_u8(DIGITS_START + d10);
+        bytes.put_u8(DIGITS_START + d1);
+
+        bytes.put_u8(b' ');
+    }
+}
+
+mod _original {
+    use std::ptr;
+
+    use bytes::{BufMut, BytesMut};
+    use http::Version;
+
+    const DEC_DIGITS_LUT: &[u8] = b"0001020304050607080910111213141516171819\
+        2021222324252627282930313233343536373839\
+        4041424344454647484950515253545556575859\
+        6061626364656667686970717273747576777879\
+        8081828384858687888990919293949596979899";
+
+    pub(crate) const STATUS_LINE_BUF_SIZE: usize = 13;
+
+    pub(crate) fn write_status_line(version: Version, mut n: u16, bytes: &mut BytesMut) {
+        let mut buf: [u8; STATUS_LINE_BUF_SIZE] = *b"HTTP/1.1     ";
+
+        match version {
+            Version::HTTP_2 => buf[5] = b'2',
+            Version::HTTP_10 => buf[7] = b'0',
+            Version::HTTP_09 => {
+                buf[5] = b'0';
+                buf[7] = b'9';
+            }
+            _ => {}
+        }
+
+        let mut curr: isize = 12;
+        let buf_ptr = buf.as_mut_ptr();
+        let lut_ptr = DEC_DIGITS_LUT.as_ptr();
+        let four = n > 999;
+
+        // decode 2 more chars, if > 2 chars
+        let d1 = (n % 100) << 1;
+        n /= 100;
+        curr -= 2;
+        unsafe {
+            ptr::copy_nonoverlapping(
+                lut_ptr.offset(d1 as isize),
+                buf_ptr.offset(curr),
+                2,
+            );
+        }
+
+        // decode last 1 or 2 chars
+        if n < 10 {
+            curr -= 1;
+            unsafe {
+                *buf_ptr.offset(curr) = (n as u8) + b'0';
+            }
+        } else {
+            let d1 = n << 1;
+            curr -= 2;
+            unsafe {
+                ptr::copy_nonoverlapping(
+                    lut_ptr.offset(d1 as isize),
+                    buf_ptr.offset(curr),
+                    2,
+                );
+            }
+        }
+
+        bytes.put_slice(&buf);
+        if four {
+            bytes.put_u8(b' ');
+        }
+    }
+}

actix-http/benches/uninit-headers.rs

@@ -0,0 +1,137 @@
+use criterion::{criterion_group, criterion_main, Criterion};
+
+use bytes::BytesMut;
+
+// A Miri run detects UB, seen on this playground:
+// https://play.rust-lang.org/?version=stable&mode=debug&edition=2018&gist=f5d9aa166aa48df8dca05fce2b6c3915
+
+fn bench_header_parsing(c: &mut Criterion) {
+    c.bench_function("Original (Unsound) [short]", |b| {
+        b.iter(|| {
+            let mut buf = BytesMut::from(REQ_SHORT);
+            _original::parse_headers(&mut buf);
+        })
+    });
+
+    c.bench_function("New (safe) [short]", |b| {
+        b.iter(|| {
+            let mut buf = BytesMut::from(REQ_SHORT);
+            _new::parse_headers(&mut buf);
+        })
+    });
+
+    c.bench_function("Original (Unsound) [realistic]", |b| {
+        b.iter(|| {
+            let mut buf = BytesMut::from(REQ);
+            _original::parse_headers(&mut buf);
+        })
+    });
+
+    c.bench_function("New (safe) [realistic]", |b| {
+        b.iter(|| {
+            let mut buf = BytesMut::from(REQ);
+            _new::parse_headers(&mut buf);
+        })
+    });
+}
+
+criterion_group!(benches, bench_header_parsing);
+criterion_main!(benches);
+
+const MAX_HEADERS: usize = 96;
+
+const EMPTY_HEADER_ARRAY: [httparse::Header<'static>; MAX_HEADERS] =
+    [httparse::EMPTY_HEADER; MAX_HEADERS];
+
+#[derive(Clone, Copy)]
+struct HeaderIndex {
+    name: (usize, usize),
+    value: (usize, usize),
+}
+
+const EMPTY_HEADER_INDEX: HeaderIndex = HeaderIndex {
+    name: (0, 0),
+    value: (0, 0),
+};
+
+const EMPTY_HEADER_INDEX_ARRAY: [HeaderIndex; MAX_HEADERS] =
+    [EMPTY_HEADER_INDEX; MAX_HEADERS];
+
+impl HeaderIndex {
+    fn record(
+        bytes: &[u8],
+        headers: &[httparse::Header<'_>],
+        indices: &mut [HeaderIndex],
+    ) {
+        let bytes_ptr = bytes.as_ptr() as usize;
+        for (header, indices) in headers.iter().zip(indices.iter_mut()) {
+            let name_start = header.name.as_ptr() as usize - bytes_ptr;
+            let name_end = name_start + header.name.len();
+            indices.name = (name_start, name_end);
+            let value_start = header.value.as_ptr() as usize - bytes_ptr;
+            let value_end = value_start + header.value.len();
+            indices.value = (value_start, value_end);
+        }
+    }
+}
+
+// test cases taken from:
+// https://github.com/seanmonstar/httparse/blob/master/benches/parse.rs
+
+const REQ_SHORT: &'static [u8] = b"\
+GET / HTTP/1.0\r\n\
+Host: example.com\r\n\
+Cookie: session=60; user_id=1\r\n\r\n";
+
+const REQ: &'static [u8] = b"\
+GET /wp-content/uploads/2010/03/hello-kitty-darth-vader-pink.jpg HTTP/1.1\r\n\
+Host: www.kittyhell.com\r\n\
+User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; ja-JP-mac; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3 Pathtraq/0.9\r\n\
+Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8\r\n\
+Accept-Language: ja,en-us;q=0.7,en;q=0.3\r\n\
+Accept-Encoding: gzip,deflate\r\n\
+Accept-Charset: Shift_JIS,utf-8;q=0.7,*;q=0.7\r\n\
+Keep-Alive: 115\r\n\
+Connection: keep-alive\r\n\
+Cookie: wp_ozh_wsa_visits=2; wp_ozh_wsa_visit_lasttime=xxxxxxxxxx; __utma=xxxxxxxxx.xxxxxxxxxx.xxxxxxxxxx.xxxxxxxxxx.xxxxxxxxxx.x; __utmz=xxxxxxxxx.xxxxxxxxxx.x.x.utmccn=(referral)|utmcsr=reader.livedoor.com|utmcct=/reader/|utmcmd=referral|padding=under256\r\n\r\n";
+
+mod _new {
+    use super::*;
+
+    pub fn parse_headers(src: &mut BytesMut) -> usize {
+        let mut headers: [HeaderIndex; MAX_HEADERS] = EMPTY_HEADER_INDEX_ARRAY;
+        let mut parsed: [httparse::Header<'_>; MAX_HEADERS] = EMPTY_HEADER_ARRAY;
+
+        let mut req = httparse::Request::new(&mut parsed);
+        match req.parse(src).unwrap() {
+            httparse::Status::Complete(_len) => {
+                HeaderIndex::record(src, req.headers, &mut headers);
+                req.headers.len()
+            }
+            _ => unreachable!(),
+        }
+    }
+}
+
+mod _original {
+    use super::*;
+
+    use std::mem::MaybeUninit;
+
+    pub fn parse_headers(src: &mut BytesMut) -> usize {
+        let mut headers: [HeaderIndex; MAX_HEADERS] =
+            unsafe { MaybeUninit::uninit().assume_init() };
+
+        let mut parsed: [httparse::Header<'_>; MAX_HEADERS] =
+            unsafe { MaybeUninit::uninit().assume_init() };
+
+        let mut req = httparse::Request::new(&mut parsed);
+        match req.parse(src).unwrap() {
+            httparse::Status::Complete(_len) => {
+                HeaderIndex::record(src, req.headers, &mut headers);
+                req.headers.len()
+            }
+            _ => unreachable!(),
+        }
+    }
+}

actix-http/benches/write-camel-case.rs

@@ -0,0 +1,89 @@
+use criterion::{black_box, criterion_group, criterion_main, BenchmarkId, Criterion};
+
+fn bench_write_camel_case(c: &mut Criterion) {
+    let mut group = c.benchmark_group("write_camel_case");
+
+    let names = ["connection", "Transfer-Encoding", "transfer-encoding"];
+
+    for &i in &names {
+        let bts = i.as_bytes();
+
+        group.bench_with_input(BenchmarkId::new("Original", i), bts, |b, bts| {
+            b.iter(|| {
+                let mut buf = black_box([0; 24]);
+                _original::write_camel_case(black_box(bts), &mut buf)
+            });
+        });
+
+        group.bench_with_input(BenchmarkId::new("New", i), bts, |b, bts| {
+            b.iter(|| {
+                let mut buf = black_box([0; 24]);
+                _new::write_camel_case(black_box(bts), &mut buf)
+            });
+        });
+    }
+
+    group.finish();
+}
+
+criterion_group!(benches, bench_write_camel_case);
+criterion_main!(benches);
+
+mod _new {
+    pub fn write_camel_case(value: &[u8], buffer: &mut [u8]) {
+        // first copy entire (potentially wrong) slice to output
+        buffer[..value.len()].copy_from_slice(value);
+
+        let mut iter = value.iter();
+
+        // first character should be uppercase
+        if let Some(c @ b'a'..=b'z') = iter.next() {
+            buffer[0] = c & 0b1101_1111;
+        }
+
+        // track 1 ahead of the current position since that's the location being assigned to
+        let mut index = 2;
+
+        // remaining characters after hyphens should also be uppercase
+        while let Some(&c) = iter.next() {
+            if c == b'-' {
+                // advance iter by one and uppercase if needed
+                if let Some(c @ b'a'..=b'z') = iter.next() {
+                    buffer[index] = c & 0b1101_1111;
+                }
+            }
+
+            index += 1;
+        }
+    }
+}
+
+mod _original {
+    pub fn write_camel_case(value: &[u8], buffer: &mut [u8]) {
+        let mut index = 0;
+        let key = value;
+        let mut key_iter = key.iter();
+
+        if let Some(c) = key_iter.next() {
+            if *c >= b'a' && *c <= b'z' {
+                buffer[index] = *c ^ b' ';
+                index += 1;
+            }
+        } else {
+            return;
+        }
+
+        while let Some(c) = key_iter.next() {
+            buffer[index] = *c;
+            index += 1;
+            if *c == b'-' {
+                if let Some(c) = key_iter.next() {
+                    if *c >= b'a' && *c <= b'z' {
+                        buffer[index] = *c ^ b' ';
+                        index += 1;
+                    }
+                }
+            }
+        }
+    }
+}

actix-http/examples/echo.rs

@@ -0,0 +1,37 @@
+use std::{env, io};
+
+use actix_http::{Error, HttpService, Request, Response};
+use actix_server::Server;
+use bytes::BytesMut;
+use futures_util::StreamExt;
+use http::header::HeaderValue;
+use log::info;
+
+#[actix_rt::main]
+async fn main() -> io::Result<()> {
+    env::set_var("RUST_LOG", "echo=info");
+    env_logger::init();
+
+    Server::build()
+        .bind("echo", "127.0.0.1:8080", || {
+            HttpService::build()
+                .client_timeout(1000)
+                .client_disconnect(1000)
+                .finish(|mut req: Request| async move {
+                    let mut body = BytesMut::new();
+                    while let Some(item) = req.payload().next().await {
+                        body.extend_from_slice(&item?);
+                    }
+
+                    info!("request body: {:?}", body);
+                    Ok::<_, Error>(
+                        Response::Ok()
+                            .header("x-head", HeaderValue::from_static("dummy value!"))
+                            .body(body),
+                    )
+                })
+                .tcp()
+        })?
+        .run()
+        .await
+}

actix-http/examples/echo2.rs

@@ -0,0 +1,33 @@
+use std::{env, io};
+
+use actix_http::http::HeaderValue;
+use actix_http::{Error, HttpService, Request, Response};
+use actix_server::Server;
+use bytes::BytesMut;
+use futures_util::StreamExt;
+use log::info;
+
+async fn handle_request(mut req: Request) -> Result<Response, Error> {
+    let mut body = BytesMut::new();
+    while let Some(item) = req.payload().next().await {
+        body.extend_from_slice(&item?)
+    }
+
+    info!("request body: {:?}", body);
+    Ok(Response::Ok()
+        .header("x-head", HeaderValue::from_static("dummy value!"))
+        .body(body))
+}
+
+#[actix_rt::main]
+async fn main() -> io::Result<()> {
+    env::set_var("RUST_LOG", "echo=info");
+    env_logger::init();
+
+    Server::build()
+        .bind("echo", "127.0.0.1:8080", || {
+            HttpService::build().finish(handle_request).tcp()
+        })?
+        .run()
+        .await
+}

actix-http/examples/hello-world.rs

@@ -0,0 +1,29 @@
+use std::{env, io};
+
+use actix_http::{HttpService, Response};
+use actix_server::Server;
+use futures_util::future;
+use http::header::HeaderValue;
+use log::info;
+
+#[actix_rt::main]
+async fn main() -> io::Result<()> {
+    env::set_var("RUST_LOG", "hello_world=info");
+    env_logger::init();
+
+    Server::build()
+        .bind("hello-world", "127.0.0.1:8080", || {
+            HttpService::build()
+                .client_timeout(1000)
+                .client_disconnect(1000)
+                .finish(|_req| {
+                    info!("{:?}", _req);
+                    let mut res = Response::Ok();
+                    res.header("x-head", HeaderValue::from_static("dummy value!"));
+                    future::ok::<_, ()>(res.body("Hello world!"))
+                })
+                .tcp()
+        })?
+        .run()
+        .await
+}

actix-http/rustfmt.toml

@@ -0,0 +1,5 @@
+max_width = 89
+reorder_imports = true
+#wrap_comments = true
+#fn_args_density = "Compressed"
+#use_small_heuristics = false

actix-http/src/body.rs

@@ -0,0 +1,710 @@
+use std::pin::Pin;
+use std::task::{Context, Poll};
+use std::{fmt, mem};
+
+use bytes::{Bytes, BytesMut};
+use futures_core::{ready, Stream};
+use pin_project::pin_project;
+
+use crate::error::Error;
+
+#[derive(Debug, PartialEq, Copy, Clone)]
+/// Body size hint
+pub enum BodySize {
+    None,
+    Empty,
+    Sized(u64),
+    Stream,
+}
+
+impl BodySize {
+    pub fn is_eof(&self) -> bool {
+        matches!(self, BodySize::None | BodySize::Empty | BodySize::Sized(0))
+    }
+}
+
+/// Type that provides this trait can be streamed to a peer.
+pub trait MessageBody {
+    fn size(&self) -> BodySize;
+
+    fn poll_next(
+        self: Pin<&mut Self>,
+        cx: &mut Context<'_>,
+    ) -> Poll<Option<Result<Bytes, Error>>>;
+
+    downcast_get_type_id!();
+}
+
+downcast!(MessageBody);
+
+impl MessageBody for () {
+    fn size(&self) -> BodySize {
+        BodySize::Empty
+    }
+
+    fn poll_next(
+        self: Pin<&mut Self>,
+        _: &mut Context<'_>,
+    ) -> Poll<Option<Result<Bytes, Error>>> {
+        Poll::Ready(None)
+    }
+}
+
+impl<T: MessageBody + Unpin> MessageBody for Box<T> {
+    fn size(&self) -> BodySize {
+        self.as_ref().size()
+    }
+
+    fn poll_next(
+        self: Pin<&mut Self>,
+        cx: &mut Context<'_>,
+    ) -> Poll<Option<Result<Bytes, Error>>> {
+        Pin::new(self.get_mut().as_mut()).poll_next(cx)
+    }
+}
+
+#[pin_project(project = ResponseBodyProj)]
+pub enum ResponseBody<B> {
+    Body(#[pin] B),
+    Other(Body),
+}
+
+impl ResponseBody<Body> {
+    pub fn into_body<B>(self) -> ResponseBody<B> {
+        match self {
+            ResponseBody::Body(b) => ResponseBody::Other(b),
+            ResponseBody::Other(b) => ResponseBody::Other(b),
+        }
+    }
+}
+
+impl<B> ResponseBody<B> {
+    pub fn take_body(&mut self) -> ResponseBody<B> {
+        std::mem::replace(self, ResponseBody::Other(Body::None))
+    }
+}
+
+impl<B: MessageBody> ResponseBody<B> {
+    pub fn as_ref(&self) -> Option<&B> {
+        if let ResponseBody::Body(ref b) = self {
+            Some(b)
+        } else {
+            None
+        }
+    }
+}
+
+impl<B: MessageBody> MessageBody for ResponseBody<B> {
+    fn size(&self) -> BodySize {
+        match self {
+            ResponseBody::Body(ref body) => body.size(),
+            ResponseBody::Other(ref body) => body.size(),
+        }
+    }
+
+    fn poll_next(
+        self: Pin<&mut Self>,
+        cx: &mut Context<'_>,
+    ) -> Poll<Option<Result<Bytes, Error>>> {
+        match self.project() {
+            ResponseBodyProj::Body(body) => body.poll_next(cx),
+            ResponseBodyProj::Other(body) => Pin::new(body).poll_next(cx),
+        }
+    }
+}
+
+impl<B: MessageBody> Stream for ResponseBody<B> {
+    type Item = Result<Bytes, Error>;
+
+    fn poll_next(
+        self: Pin<&mut Self>,
+        cx: &mut Context<'_>,
+    ) -> Poll<Option<Self::Item>> {
+        match self.project() {
+            ResponseBodyProj::Body(body) => body.poll_next(cx),
+            ResponseBodyProj::Other(body) => Pin::new(body).poll_next(cx),
+        }
+    }
+}
+
+/// Represents various types of http message body.
+pub enum Body {
+    /// Empty response. `Content-Length` header is not set.
+    None,
+    /// Zero sized response body. `Content-Length` header is set to `0`.
+    Empty,
+    /// Specific response body.
+    Bytes(Bytes),
+    /// Generic message body.
+    Message(Box<dyn MessageBody + Unpin>),
+}
+
+impl Body {
+    /// Create body from slice (copy)
+    pub fn from_slice(s: &[u8]) -> Body {
+        Body::Bytes(Bytes::copy_from_slice(s))
+    }
+
+    /// Create body from generic message body.
+    pub fn from_message<B: MessageBody + Unpin + 'static>(body: B) -> Body {
+        Body::Message(Box::new(body))
+    }
+}
+
+impl MessageBody for Body {
+    fn size(&self) -> BodySize {
+        match self {
+            Body::None => BodySize::None,
+            Body::Empty => BodySize::Empty,
+            Body::Bytes(ref bin) => BodySize::Sized(bin.len() as u64),
+            Body::Message(ref body) => body.size(),
+        }
+    }
+
+    fn poll_next(
+        self: Pin<&mut Self>,
+        cx: &mut Context<'_>,
+    ) -> Poll<Option<Result<Bytes, Error>>> {
+        match self.get_mut() {
+            Body::None => Poll::Ready(None),
+            Body::Empty => Poll::Ready(None),
+            Body::Bytes(ref mut bin) => {
+                let len = bin.len();
+                if len == 0 {
+                    Poll::Ready(None)
+                } else {
+                    Poll::Ready(Some(Ok(mem::take(bin))))
+                }
+            }
+            Body::Message(body) => Pin::new(&mut **body).poll_next(cx),
+        }
+    }
+}
+
+impl PartialEq for Body {
+    fn eq(&self, other: &Body) -> bool {
+        match *self {
+            Body::None => matches!(*other, Body::None),
+            Body::Empty => matches!(*other, Body::Empty),
+            Body::Bytes(ref b) => match *other {
+                Body::Bytes(ref b2) => b == b2,
+                _ => false,
+            },
+            Body::Message(_) => false,
+        }
+    }
+}
+
+impl fmt::Debug for Body {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match *self {
+            Body::None => write!(f, "Body::None"),
+            Body::Empty => write!(f, "Body::Empty"),
+            Body::Bytes(ref b) => write!(f, "Body::Bytes({:?})", b),
+            Body::Message(_) => write!(f, "Body::Message(_)"),
+        }
+    }
+}
+
+impl From<&'static str> for Body {
+    fn from(s: &'static str) -> Body {
+        Body::Bytes(Bytes::from_static(s.as_ref()))
+    }
+}
+
+impl From<&'static [u8]> for Body {
+    fn from(s: &'static [u8]) -> Body {
+        Body::Bytes(Bytes::from_static(s))
+    }
+}
+
+impl From<Vec<u8>> for Body {
+    fn from(vec: Vec<u8>) -> Body {
+        Body::Bytes(Bytes::from(vec))
+    }
+}
+
+impl From<String> for Body {
+    fn from(s: String) -> Body {
+        s.into_bytes().into()
+    }
+}
+
+impl<'a> From<&'a String> for Body {
+    fn from(s: &'a String) -> Body {
+        Body::Bytes(Bytes::copy_from_slice(AsRef::<[u8]>::as_ref(&s)))
+    }
+}
+
+impl From<Bytes> for Body {
+    fn from(s: Bytes) -> Body {
+        Body::Bytes(s)
+    }
+}
+
+impl From<BytesMut> for Body {
+    fn from(s: BytesMut) -> Body {
+        Body::Bytes(s.freeze())
+    }
+}
+
+impl From<serde_json::Value> for Body {
+    fn from(v: serde_json::Value) -> Body {
+        Body::Bytes(v.to_string().into())
+    }
+}
+
+impl<S> From<SizedStream<S>> for Body
+where
+    S: Stream<Item = Result<Bytes, Error>> + Unpin + 'static,
+{
+    fn from(s: SizedStream<S>) -> Body {
+        Body::from_message(s)
+    }
+}
+
+impl<S, E> From<BodyStream<S>> for Body
+where
+    S: Stream<Item = Result<Bytes, E>> + Unpin + 'static,
+    E: Into<Error> + 'static,
+{
+    fn from(s: BodyStream<S>) -> Body {
+        Body::from_message(s)
+    }
+}
+
+impl MessageBody for Bytes {
+    fn size(&self) -> BodySize {
+        BodySize::Sized(self.len() as u64)
+    }
+
+    fn poll_next(
+        self: Pin<&mut Self>,
+        _: &mut Context<'_>,
+    ) -> Poll<Option<Result<Bytes, Error>>> {
+        if self.is_empty() {
+            Poll::Ready(None)
+        } else {
+            Poll::Ready(Some(Ok(mem::take(self.get_mut()))))
+        }
+    }
+}
+
+impl MessageBody for BytesMut {
+    fn size(&self) -> BodySize {
+        BodySize::Sized(self.len() as u64)
+    }
+
+    fn poll_next(
+        self: Pin<&mut Self>,
+        _: &mut Context<'_>,
+    ) -> Poll<Option<Result<Bytes, Error>>> {
+        if self.is_empty() {
+            Poll::Ready(None)
+        } else {
+            Poll::Ready(Some(Ok(mem::take(self.get_mut()).freeze())))
+        }
+    }
+}
+
+impl MessageBody for &'static str {
+    fn size(&self) -> BodySize {
+        BodySize::Sized(self.len() as u64)
+    }
+
+    fn poll_next(
+        self: Pin<&mut Self>,
+        _: &mut Context<'_>,
+    ) -> Poll<Option<Result<Bytes, Error>>> {
+        if self.is_empty() {
+            Poll::Ready(None)
+        } else {
+            Poll::Ready(Some(Ok(Bytes::from_static(
+                mem::take(self.get_mut()).as_ref(),
+            ))))
+        }
+    }
+}
+
+impl MessageBody for Vec<u8> {
+    fn size(&self) -> BodySize {
+        BodySize::Sized(self.len() as u64)
+    }
+
+    fn poll_next(
+        self: Pin<&mut Self>,
+        _: &mut Context<'_>,
+    ) -> Poll<Option<Result<Bytes, Error>>> {
+        if self.is_empty() {
+            Poll::Ready(None)
+        } else {
+            Poll::Ready(Some(Ok(Bytes::from(mem::take(self.get_mut())))))
+        }
+    }
+}
+
+impl MessageBody for String {
+    fn size(&self) -> BodySize {
+        BodySize::Sized(self.len() as u64)
+    }
+
+    fn poll_next(
+        self: Pin<&mut Self>,
+        _: &mut Context<'_>,
+    ) -> Poll<Option<Result<Bytes, Error>>> {
+        if self.is_empty() {
+            Poll::Ready(None)
+        } else {
+            Poll::Ready(Some(Ok(Bytes::from(
+                mem::take(self.get_mut()).into_bytes(),
+            ))))
+        }
+    }
+}
+
+/// Type represent streaming body.
+/// Response does not contain `content-length` header and appropriate transfer encoding is used.
+pub struct BodyStream<S: Unpin> {
+    stream: S,
+}
+
+impl<S, E> BodyStream<S>
+where
+    S: Stream<Item = Result<Bytes, E>> + Unpin,
+    E: Into<Error>,
+{
+    pub fn new(stream: S) -> Self {
+        BodyStream { stream }
+    }
+}
+
+impl<S, E> MessageBody for BodyStream<S>
+where
+    S: Stream<Item = Result<Bytes, E>> + Unpin,
+    E: Into<Error>,
+{
+    fn size(&self) -> BodySize {
+        BodySize::Stream
+    }
+
+    /// Attempts to pull out the next value of the underlying [`Stream`].
+    ///
+    /// Empty values are skipped to prevent [`BodyStream`]'s transmission being
+    /// ended on a zero-length chunk, but rather proceed until the underlying
+    /// [`Stream`] ends.
+    fn poll_next(
+        mut self: Pin<&mut Self>,
+        cx: &mut Context<'_>,
+    ) -> Poll<Option<Result<Bytes, Error>>> {
+        loop {
+            let stream = &mut self.as_mut().stream;
+            return Poll::Ready(match ready!(Pin::new(stream).poll_next(cx)) {
+                Some(Ok(ref bytes)) if bytes.is_empty() => continue,
+                opt => opt.map(|res| res.map_err(Into::into)),
+            });
+        }
+    }
+}
+
+/// Type represent streaming body. This body implementation should be used
+/// if total size of stream is known. Data get sent as is without using transfer encoding.
+pub struct SizedStream<S: Unpin> {
+    size: u64,
+    stream: S,
+}
+
+impl<S> SizedStream<S>
+where
+    S: Stream<Item = Result<Bytes, Error>> + Unpin,
+{
+    pub fn new(size: u64, stream: S) -> Self {
+        SizedStream { size, stream }
+    }
+}
+
+impl<S> MessageBody for SizedStream<S>
+where
+    S: Stream<Item = Result<Bytes, Error>> + Unpin,
+{
+    fn size(&self) -> BodySize {
+        BodySize::Sized(self.size as u64)
+    }
+
+    /// Attempts to pull out the next value of the underlying [`Stream`].
+    ///
+    /// Empty values are skipped to prevent [`SizedStream`]'s transmission being
+    /// ended on a zero-length chunk, but rather proceed until the underlying
+    /// [`Stream`] ends.
+    fn poll_next(
+        mut self: Pin<&mut Self>,
+        cx: &mut Context<'_>,
+    ) -> Poll<Option<Result<Bytes, Error>>> {
+        loop {
+            let stream = &mut self.as_mut().stream;
+            return Poll::Ready(match ready!(Pin::new(stream).poll_next(cx)) {
+                Some(Ok(ref bytes)) if bytes.is_empty() => continue,
+                val => val,
+            });
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use futures_util::future::poll_fn;
+    use futures_util::pin_mut;
+    use futures_util::stream;
+
+    impl Body {
+        pub(crate) fn get_ref(&self) -> &[u8] {
+            match *self {
+                Body::Bytes(ref bin) => &bin,
+                _ => panic!(),
+            }
+        }
+    }
+
+    impl ResponseBody<Body> {
+        pub(crate) fn get_ref(&self) -> &[u8] {
+            match *self {
+                ResponseBody::Body(ref b) => b.get_ref(),
+                ResponseBody::Other(ref b) => b.get_ref(),
+            }
+        }
+    }
+
+    #[actix_rt::test]
+    async fn test_static_str() {
+        assert_eq!(Body::from("").size(), BodySize::Sized(0));
+        assert_eq!(Body::from("test").size(), BodySize::Sized(4));
+        assert_eq!(Body::from("test").get_ref(), b"test");
+
+        assert_eq!("test".size(), BodySize::Sized(4));
+        assert_eq!(
+            poll_fn(|cx| Pin::new(&mut "test").poll_next(cx))
+                .await
+                .unwrap()
+                .ok(),
+            Some(Bytes::from("test"))
+        );
+    }
+
+    #[actix_rt::test]
+    async fn test_static_bytes() {
+        assert_eq!(Body::from(b"test".as_ref()).size(), BodySize::Sized(4));
+        assert_eq!(Body::from(b"test".as_ref()).get_ref(), b"test");
+        assert_eq!(
+            Body::from_slice(b"test".as_ref()).size(),
+            BodySize::Sized(4)
+        );
+        assert_eq!(Body::from_slice(b"test".as_ref()).get_ref(), b"test");
+        let sb = Bytes::from(&b"test"[..]);
+        pin_mut!(sb);
+
+        assert_eq!(sb.size(), BodySize::Sized(4));
+        assert_eq!(
+            poll_fn(|cx| sb.as_mut().poll_next(cx)).await.unwrap().ok(),
+            Some(Bytes::from("test"))
+        );
+    }
+
+    #[actix_rt::test]
+    async fn test_vec() {
+        assert_eq!(Body::from(Vec::from("test")).size(), BodySize::Sized(4));
+        assert_eq!(Body::from(Vec::from("test")).get_ref(), b"test");
+        let test_vec = Vec::from("test");
+        pin_mut!(test_vec);
+
+        assert_eq!(test_vec.size(), BodySize::Sized(4));
+        assert_eq!(
+            poll_fn(|cx| test_vec.as_mut().poll_next(cx))
+                .await
+                .unwrap()
+                .ok(),
+            Some(Bytes::from("test"))
+        );
+    }
+
+    #[actix_rt::test]
+    async fn test_bytes() {
+        let b = Bytes::from("test");
+        assert_eq!(Body::from(b.clone()).size(), BodySize::Sized(4));
+        assert_eq!(Body::from(b.clone()).get_ref(), b"test");
+        pin_mut!(b);
+
+        assert_eq!(b.size(), BodySize::Sized(4));
+        assert_eq!(
+            poll_fn(|cx| b.as_mut().poll_next(cx)).await.unwrap().ok(),
+            Some(Bytes::from("test"))
+        );
+    }
+
+    #[actix_rt::test]
+    async fn test_bytes_mut() {
+        let b = BytesMut::from("test");
+        assert_eq!(Body::from(b.clone()).size(), BodySize::Sized(4));
+        assert_eq!(Body::from(b.clone()).get_ref(), b"test");
+        pin_mut!(b);
+
+        assert_eq!(b.size(), BodySize::Sized(4));
+        assert_eq!(
+            poll_fn(|cx| b.as_mut().poll_next(cx)).await.unwrap().ok(),
+            Some(Bytes::from("test"))
+        );
+    }
+
+    #[actix_rt::test]
+    async fn test_string() {
+        let b = "test".to_owned();
+        assert_eq!(Body::from(b.clone()).size(), BodySize::Sized(4));
+        assert_eq!(Body::from(b.clone()).get_ref(), b"test");
+        assert_eq!(Body::from(&b).size(), BodySize::Sized(4));
+        assert_eq!(Body::from(&b).get_ref(), b"test");
+        pin_mut!(b);
+
+        assert_eq!(b.size(), BodySize::Sized(4));
+        assert_eq!(
+            poll_fn(|cx| b.as_mut().poll_next(cx)).await.unwrap().ok(),
+            Some(Bytes::from("test"))
+        );
+    }
+
+    #[actix_rt::test]
+    async fn test_unit() {
+        assert_eq!(().size(), BodySize::Empty);
+        assert!(poll_fn(|cx| Pin::new(&mut ()).poll_next(cx))
+            .await
+            .is_none());
+    }
+
+    #[actix_rt::test]
+    async fn test_box() {
+        let val = Box::new(());
+        pin_mut!(val);
+        assert_eq!(val.size(), BodySize::Empty);
+        assert!(poll_fn(|cx| val.as_mut().poll_next(cx)).await.is_none());
+    }
+
+    #[actix_rt::test]
+    async fn test_body_eq() {
+        assert!(
+            Body::Bytes(Bytes::from_static(b"1"))
+                == Body::Bytes(Bytes::from_static(b"1"))
+        );
+        assert!(Body::Bytes(Bytes::from_static(b"1")) != Body::None);
+    }
+
+    #[actix_rt::test]
+    async fn test_body_debug() {
+        assert!(format!("{:?}", Body::None).contains("Body::None"));
+        assert!(format!("{:?}", Body::Empty).contains("Body::Empty"));
+        assert!(format!("{:?}", Body::Bytes(Bytes::from_static(b"1"))).contains('1'));
+    }
+
+    #[actix_rt::test]
+    async fn test_serde_json() {
+        use serde_json::json;
+        assert_eq!(
+            Body::from(serde_json::Value::String("test".into())).size(),
+            BodySize::Sized(6)
+        );
+        assert_eq!(
+            Body::from(json!({"test-key":"test-value"})).size(),
+            BodySize::Sized(25)
+        );
+    }
+
+    mod body_stream {
+        use super::*;
+        //use futures::task::noop_waker;
+        //use futures::stream::once;
+
+        #[actix_rt::test]
+        async fn skips_empty_chunks() {
+            let body = BodyStream::new(stream::iter(
+                ["1", "", "2"]
+                    .iter()
+                    .map(|&v| Ok(Bytes::from(v)) as Result<Bytes, ()>),
+            ));
+            pin_mut!(body);
+
+            assert_eq!(
+                poll_fn(|cx| body.as_mut().poll_next(cx))
+                    .await
+                    .unwrap()
+                    .ok(),
+                Some(Bytes::from("1")),
+            );
+            assert_eq!(
+                poll_fn(|cx| body.as_mut().poll_next(cx))
+                    .await
+                    .unwrap()
+                    .ok(),
+                Some(Bytes::from("2")),
+            );
+        }
+
+        /* Now it does not compile as it should
+        #[actix_rt::test]
+        async fn move_pinned_pointer() {
+            let (sender, receiver) = futures::channel::oneshot::channel();
+            let mut body_stream = Ok(BodyStream::new(once(async {
+                let x = Box::new(0i32);
+                let y = &x;
+                receiver.await.unwrap();
+                let _z = **y;
+                Ok::<_, ()>(Bytes::new())
+            })));
+
+            let waker = noop_waker();
+            let mut context = Context::from_waker(&waker);
+            pin_mut!(body_stream);
+
+            let _ = body_stream.as_mut().unwrap().poll_next(&mut context);
+            sender.send(()).unwrap();
+            let _ = std::mem::replace(&mut body_stream, Err([0; 32])).unwrap().poll_next(&mut context);
+        }*/
+    }
+
+    mod sized_stream {
+        use super::*;
+
+        #[actix_rt::test]
+        async fn skips_empty_chunks() {
+            let body = SizedStream::new(
+                2,
+                stream::iter(["1", "", "2"].iter().map(|&v| Ok(Bytes::from(v)))),
+            );
+            pin_mut!(body);
+            assert_eq!(
+                poll_fn(|cx| body.as_mut().poll_next(cx))
+                    .await
+                    .unwrap()
+                    .ok(),
+                Some(Bytes::from("1")),
+            );
+            assert_eq!(
+                poll_fn(|cx| body.as_mut().poll_next(cx))
+                    .await
+                    .unwrap()
+                    .ok(),
+                Some(Bytes::from("2")),
+            );
+        }
+    }
+
+    #[actix_rt::test]
+    async fn test_body_casting() {
+        let mut body = String::from("hello cast");
+        let resp_body: &mut dyn MessageBody = &mut body;
+        let body = resp_body.downcast_ref::<String>().unwrap();
+        assert_eq!(body, "hello cast");
+        let body = &mut resp_body.downcast_mut::<String>().unwrap();
+        body.push('!');
+        let body = resp_body.downcast_ref::<String>().unwrap();
+        assert_eq!(body, "hello cast!");
+        let not_body = resp_body.downcast_ref::<()>();
+        assert!(not_body.is_none());
+    }
+}

actix-http/src/builder.rs

@@ -0,0 +1,251 @@
+use std::marker::PhantomData;
+use std::rc::Rc;
+use std::{fmt, net};
+
+use actix_codec::Framed;
+use actix_service::{IntoServiceFactory, Service, ServiceFactory};
+
+use crate::body::MessageBody;
+use crate::config::{KeepAlive, ServiceConfig};
+use crate::error::Error;
+use crate::h1::{Codec, ExpectHandler, H1Service, UpgradeHandler};
+use crate::h2::H2Service;
+use crate::request::Request;
+use crate::response::Response;
+use crate::service::HttpService;
+use crate::{ConnectCallback, Extensions};
+
+/// A HTTP service builder
+///
+/// This type can be used to construct an instance of [`HttpService`] through a
+/// builder-like pattern.
+pub struct HttpServiceBuilder<T, S, X = ExpectHandler, U = UpgradeHandler> {
+    keep_alive: KeepAlive,
+    client_timeout: u64,
+    client_disconnect: u64,
+    secure: bool,
+    local_addr: Option<net::SocketAddr>,
+    expect: X,
+    upgrade: Option<U>,
+    on_connect_ext: Option<Rc<ConnectCallback<T>>>,
+    _phantom: PhantomData<S>,
+}
+
+impl<T, S> HttpServiceBuilder<T, S, ExpectHandler, UpgradeHandler>
+where
+    S: ServiceFactory<Request, Config = ()>,
+    S::Error: Into<Error> + 'static,
+    S::InitError: fmt::Debug,
+    <S::Service as Service<Request>>::Future: 'static,
+{
+    /// Create instance of `ServiceConfigBuilder`
+    pub fn new() -> Self {
+        HttpServiceBuilder {
+            keep_alive: KeepAlive::Timeout(5),
+            client_timeout: 5000,
+            client_disconnect: 0,
+            secure: false,
+            local_addr: None,
+            expect: ExpectHandler,
+            upgrade: None,
+            on_connect_ext: None,
+            _phantom: PhantomData,
+        }
+    }
+}
+
+impl<T, S, X, U> HttpServiceBuilder<T, S, X, U>
+where
+    S: ServiceFactory<Request, Config = ()>,
+    S::Error: Into<Error> + 'static,
+    S::InitError: fmt::Debug,
+    <S::Service as Service<Request>>::Future: 'static,
+    X: ServiceFactory<Request, Config = (), Response = Request>,
+    X::Error: Into<Error>,
+    X::InitError: fmt::Debug,
+    <X::Service as Service<Request>>::Future: 'static,
+    U: ServiceFactory<(Request, Framed<T, Codec>), Config = (), Response = ()>,
+    U::Error: fmt::Display,
+    U::InitError: fmt::Debug,
+    <U::Service as Service<(Request, Framed<T, Codec>)>>::Future: 'static,
+{
+    /// Set server keep-alive setting.
+    ///
+    /// By default keep alive is set to a 5 seconds.
+    pub fn keep_alive<W: Into<KeepAlive>>(mut self, val: W) -> Self {
+        self.keep_alive = val.into();
+        self
+    }
+
+    /// Set connection secure state
+    pub fn secure(mut self) -> Self {
+        self.secure = true;
+        self
+    }
+
+    /// Set the local address that this service is bound to.
+    pub fn local_addr(mut self, addr: net::SocketAddr) -> Self {
+        self.local_addr = Some(addr);
+        self
+    }
+
+    /// Set server client timeout in milliseconds for first request.
+    ///
+    /// Defines a timeout for reading client request header. If a client does not transmit
+    /// the entire set headers within this time, the request is terminated with
+    /// the 408 (Request Time-out) error.
+    ///
+    /// To disable timeout set value to 0.
+    ///
+    /// By default client timeout is set to 5000 milliseconds.
+    pub fn client_timeout(mut self, val: u64) -> Self {
+        self.client_timeout = val;
+        self
+    }
+
+    /// Set server connection disconnect timeout in milliseconds.
+    ///
+    /// Defines a timeout for disconnect connection. If a disconnect procedure does not complete
+    /// within this time, the request get dropped. This timeout affects secure connections.
+    ///
+    /// To disable timeout set value to 0.
+    ///
+    /// By default disconnect timeout is set to 0.
+    pub fn client_disconnect(mut self, val: u64) -> Self {
+        self.client_disconnect = val;
+        self
+    }
+
+    /// Provide service for `EXPECT: 100-Continue` support.
+    ///
+    /// Service get called with request that contains `EXPECT` header.
+    /// Service must return request in case of success, in that case
+    /// request will be forwarded to main service.
+    pub fn expect<F, X1>(self, expect: F) -> HttpServiceBuilder<T, S, X1, U>
+    where
+        F: IntoServiceFactory<X1, Request>,
+        X1: ServiceFactory<Request, Config = (), Response = Request>,
+        X1::Error: Into<Error>,
+        X1::InitError: fmt::Debug,
+        <X1::Service as Service<Request>>::Future: 'static,
+    {
+        HttpServiceBuilder {
+            keep_alive: self.keep_alive,
+            client_timeout: self.client_timeout,
+            client_disconnect: self.client_disconnect,
+            secure: self.secure,
+            local_addr: self.local_addr,
+            expect: expect.into_factory(),
+            upgrade: self.upgrade,
+            on_connect_ext: self.on_connect_ext,
+            _phantom: PhantomData,
+        }
+    }
+
+    /// Provide service for custom `Connection: UPGRADE` support.
+    ///
+    /// If service is provided then normal requests handling get halted
+    /// and this service get called with original request and framed object.
+    pub fn upgrade<F, U1>(self, upgrade: F) -> HttpServiceBuilder<T, S, X, U1>
+    where
+        F: IntoServiceFactory<U1, (Request, Framed<T, Codec>)>,
+        U1: ServiceFactory<(Request, Framed<T, Codec>), Config = (), Response = ()>,
+        U1::Error: fmt::Display,
+        U1::InitError: fmt::Debug,
+        <U1::Service as Service<(Request, Framed<T, Codec>)>>::Future: 'static,
+    {
+        HttpServiceBuilder {
+            keep_alive: self.keep_alive,
+            client_timeout: self.client_timeout,
+            client_disconnect: self.client_disconnect,
+            secure: self.secure,
+            local_addr: self.local_addr,
+            expect: self.expect,
+            upgrade: Some(upgrade.into_factory()),
+            on_connect_ext: self.on_connect_ext,
+            _phantom: PhantomData,
+        }
+    }
+
+    /// Sets the callback to be run on connection establishment.
+    ///
+    /// Has mutable access to a data container that will be merged into request extensions.
+    /// This enables transport layer data (like client certificates) to be accessed in middleware
+    /// and handlers.
+    pub fn on_connect_ext<F>(mut self, f: F) -> Self
+    where
+        F: Fn(&T, &mut Extensions) + 'static,
+    {
+        self.on_connect_ext = Some(Rc::new(f));
+        self
+    }
+
+    /// Finish service configuration and create a HTTP Service for HTTP/1 protocol.
+    pub fn h1<F, B>(self, service: F) -> H1Service<T, S, B, X, U>
+    where
+        B: MessageBody,
+        F: IntoServiceFactory<S, Request>,
+        S::Error: Into<Error>,
+        S::InitError: fmt::Debug,
+        S::Response: Into<Response<B>>,
+    {
+        let cfg = ServiceConfig::new(
+            self.keep_alive,
+            self.client_timeout,
+            self.client_disconnect,
+            self.secure,
+            self.local_addr,
+        );
+
+        H1Service::with_config(cfg, service.into_factory())
+            .expect(self.expect)
+            .upgrade(self.upgrade)
+            .on_connect_ext(self.on_connect_ext)
+    }
+
+    /// Finish service configuration and create a HTTP service for HTTP/2 protocol.
+    pub fn h2<F, B>(self, service: F) -> H2Service<T, S, B>
+    where
+        B: MessageBody + 'static,
+        F: IntoServiceFactory<S, Request>,
+        S::Error: Into<Error> + 'static,
+        S::InitError: fmt::Debug,
+        S::Response: Into<Response<B>> + 'static,
+        <S::Service as Service<Request>>::Future: 'static,
+    {
+        let cfg = ServiceConfig::new(
+            self.keep_alive,
+            self.client_timeout,
+            self.client_disconnect,
+            self.secure,
+            self.local_addr,
+        );
+
+        H2Service::with_config(cfg, service.into_factory())
+            .on_connect_ext(self.on_connect_ext)
+    }
+
+    /// Finish service configuration and create `HttpService` instance.
+    pub fn finish<F, B>(self, service: F) -> HttpService<T, S, B, X, U>
+    where
+        B: MessageBody + 'static,
+        F: IntoServiceFactory<S, Request>,
+        S::Error: Into<Error> + 'static,
+        S::InitError: fmt::Debug,
+        S::Response: Into<Response<B>> + 'static,
+        <S::Service as Service<Request>>::Future: 'static,
+    {
+        let cfg = ServiceConfig::new(
+            self.keep_alive,
+            self.client_timeout,
+            self.client_disconnect,
+            self.secure,
+            self.local_addr,
+        );
+
+        HttpService::with_config(cfg, service.into_factory())
+            .expect(self.expect)
+            .upgrade(self.upgrade)
+            .on_connect_ext(self.on_connect_ext)
+    }
+}

actix-http/src/client/config.rs

@@ -0,0 +1,39 @@
+use std::time::Duration;
+
+// These values are taken from hyper/src/proto/h2/client.rs
+const DEFAULT_H2_CONN_WINDOW: u32 = 1024 * 1024 * 2; // 2mb
+const DEFAULT_H2_STREAM_WINDOW: u32 = 1024 * 1024; // 1mb
+
+/// Connector configuration
+#[derive(Clone)]
+pub(crate) struct ConnectorConfig {
+    pub(crate) timeout: Duration,
+    pub(crate) conn_lifetime: Duration,
+    pub(crate) conn_keep_alive: Duration,
+    pub(crate) disconnect_timeout: Option<Duration>,
+    pub(crate) limit: usize,
+    pub(crate) conn_window_size: u32,
+    pub(crate) stream_window_size: u32,
+}
+
+impl Default for ConnectorConfig {
+    fn default() -> Self {
+        Self {
+            timeout: Duration::from_secs(1),
+            conn_lifetime: Duration::from_secs(75),
+            conn_keep_alive: Duration::from_secs(15),
+            disconnect_timeout: Some(Duration::from_millis(3000)),
+            limit: 100,
+            conn_window_size: DEFAULT_H2_CONN_WINDOW,
+            stream_window_size: DEFAULT_H2_STREAM_WINDOW,
+        }
+    }
+}
+
+impl ConnectorConfig {
+    pub(crate) fn no_disconnect_timeout(&self) -> Self {
+        let mut res = self.clone();
+        res.disconnect_timeout = None;
+        res
+    }
+}

actix-http/src/client/connection.rs

@@ -0,0 +1,267 @@
+use std::future::Future;
+use std::pin::Pin;
+use std::task::{Context, Poll};
+use std::{fmt, io, time};
+
+use actix_codec::{AsyncRead, AsyncWrite, Framed, ReadBuf};
+use bytes::Bytes;
+use futures_util::future::{err, Either, FutureExt, LocalBoxFuture, Ready};
+use h2::client::SendRequest;
+use pin_project::pin_project;
+
+use crate::body::MessageBody;
+use crate::h1::ClientCodec;
+use crate::message::{RequestHeadType, ResponseHead};
+use crate::payload::Payload;
+
+use super::error::SendRequestError;
+use super::pool::{Acquired, Protocol};
+use super::{h1proto, h2proto};
+
+pub(crate) enum ConnectionType<Io> {
+    H1(Io),
+    H2(SendRequest<Bytes>),
+}
+
+pub trait Connection {
+    type Io: AsyncRead + AsyncWrite + Unpin;
+    type Future: Future<Output = Result<(ResponseHead, Payload), SendRequestError>>;
+
+    fn protocol(&self) -> Protocol;
+
+    /// Send request and body
+    fn send_request<B: MessageBody + 'static, H: Into<RequestHeadType>>(
+        self,
+        head: H,
+        body: B,
+    ) -> Self::Future;
+
+    type TunnelFuture: Future<
+        Output = Result<(ResponseHead, Framed<Self::Io, ClientCodec>), SendRequestError>,
+    >;
+
+    /// Send request, returns Response and Framed
+    fn open_tunnel<H: Into<RequestHeadType>>(self, head: H) -> Self::TunnelFuture;
+}
+
+pub(crate) trait ConnectionLifetime: AsyncRead + AsyncWrite + 'static {
+    /// Close connection
+    fn close(self: Pin<&mut Self>);
+
+    /// Release connection to the connection pool
+    fn release(self: Pin<&mut Self>);
+}
+
+#[doc(hidden)]
+/// HTTP client connection
+pub struct IoConnection<T> {
+    io: Option<ConnectionType<T>>,
+    created: time::Instant,
+    pool: Option<Acquired<T>>,
+}
+
+impl<T> fmt::Debug for IoConnection<T>
+where
+    T: fmt::Debug,
+{
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self.io {
+            Some(ConnectionType::H1(ref io)) => write!(f, "H1Connection({:?})", io),
+            Some(ConnectionType::H2(_)) => write!(f, "H2Connection"),
+            None => write!(f, "Connection(Empty)"),
+        }
+    }
+}
+
+impl<T: AsyncRead + AsyncWrite + Unpin> IoConnection<T> {
+    pub(crate) fn new(
+        io: ConnectionType<T>,
+        created: time::Instant,
+        pool: Option<Acquired<T>>,
+    ) -> Self {
+        IoConnection {
+            pool,
+            created,
+            io: Some(io),
+        }
+    }
+
+    pub(crate) fn into_inner(self) -> (ConnectionType<T>, time::Instant) {
+        (self.io.unwrap(), self.created)
+    }
+}
+
+impl<T> Connection for IoConnection<T>
+where
+    T: AsyncRead + AsyncWrite + Unpin + 'static,
+{
+    type Io = T;
+    type Future =
+        LocalBoxFuture<'static, Result<(ResponseHead, Payload), SendRequestError>>;
+
+    fn protocol(&self) -> Protocol {
+        match self.io {
+            Some(ConnectionType::H1(_)) => Protocol::Http1,
+            Some(ConnectionType::H2(_)) => Protocol::Http2,
+            None => Protocol::Http1,
+        }
+    }
+
+    fn send_request<B: MessageBody + 'static, H: Into<RequestHeadType>>(
+        mut self,
+        head: H,
+        body: B,
+    ) -> Self::Future {
+        match self.io.take().unwrap() {
+            ConnectionType::H1(io) => {
+                h1proto::send_request(io, head.into(), body, self.created, self.pool)
+                    .boxed_local()
+            }
+            ConnectionType::H2(io) => {
+                h2proto::send_request(io, head.into(), body, self.created, self.pool)
+                    .boxed_local()
+            }
+        }
+    }
+
+    type TunnelFuture = Either<
+        LocalBoxFuture<
+            'static,
+            Result<(ResponseHead, Framed<Self::Io, ClientCodec>), SendRequestError>,
+        >,
+        Ready<Result<(ResponseHead, Framed<Self::Io, ClientCodec>), SendRequestError>>,
+    >;
+
+    /// Send request, returns Response and Framed
+    fn open_tunnel<H: Into<RequestHeadType>>(mut self, head: H) -> Self::TunnelFuture {
+        match self.io.take().unwrap() {
+            ConnectionType::H1(io) => {
+                Either::Left(h1proto::open_tunnel(io, head.into()).boxed_local())
+            }
+            ConnectionType::H2(io) => {
+                if let Some(mut pool) = self.pool.take() {
+                    pool.release(IoConnection::new(
+                        ConnectionType::H2(io),
+                        self.created,
+                        None,
+                    ));
+                }
+                Either::Right(err(SendRequestError::TunnelNotSupported))
+            }
+        }
+    }
+}
+
+#[allow(dead_code)]
+pub(crate) enum EitherConnection<A, B> {
+    A(IoConnection<A>),
+    B(IoConnection<B>),
+}
+
+impl<A, B> Connection for EitherConnection<A, B>
+where
+    A: AsyncRead + AsyncWrite + Unpin + 'static,
+    B: AsyncRead + AsyncWrite + Unpin + 'static,
+{
+    type Io = EitherIo<A, B>;
+    type Future =
+        LocalBoxFuture<'static, Result<(ResponseHead, Payload), SendRequestError>>;
+
+    fn protocol(&self) -> Protocol {
+        match self {
+            EitherConnection::A(con) => con.protocol(),
+            EitherConnection::B(con) => con.protocol(),
+        }
+    }
+
+    fn send_request<RB: MessageBody + 'static, H: Into<RequestHeadType>>(
+        self,
+        head: H,
+        body: RB,
+    ) -> Self::Future {
+        match self {
+            EitherConnection::A(con) => con.send_request(head, body),
+            EitherConnection::B(con) => con.send_request(head, body),
+        }
+    }
+
+    type TunnelFuture = LocalBoxFuture<
+        'static,
+        Result<(ResponseHead, Framed<Self::Io, ClientCodec>), SendRequestError>,
+    >;
+
+    /// Send request, returns Response and Framed
+    fn open_tunnel<H: Into<RequestHeadType>>(self, head: H) -> Self::TunnelFuture {
+        match self {
+            EitherConnection::A(con) => con
+                .open_tunnel(head)
+                .map(|res| {
+                    res.map(|(head, framed)| (head, framed.into_map_io(EitherIo::A)))
+                })
+                .boxed_local(),
+            EitherConnection::B(con) => con
+                .open_tunnel(head)
+                .map(|res| {
+                    res.map(|(head, framed)| (head, framed.into_map_io(EitherIo::B)))
+                })
+                .boxed_local(),
+        }
+    }
+}
+
+#[pin_project(project = EitherIoProj)]
+pub enum EitherIo<A, B> {
+    A(#[pin] A),
+    B(#[pin] B),
+}
+
+impl<A, B> AsyncRead for EitherIo<A, B>
+where
+    A: AsyncRead,
+    B: AsyncRead,
+{
+    fn poll_read(
+        self: Pin<&mut Self>,
+        cx: &mut Context<'_>,
+        buf: &mut ReadBuf<'_>,
+    ) -> Poll<io::Result<()>> {
+        match self.project() {
+            EitherIoProj::A(val) => val.poll_read(cx, buf),
+            EitherIoProj::B(val) => val.poll_read(cx, buf),
+        }
+    }
+}
+
+impl<A, B> AsyncWrite for EitherIo<A, B>
+where
+    A: AsyncWrite,
+    B: AsyncWrite,
+{
+    fn poll_write(
+        self: Pin<&mut Self>,
+        cx: &mut Context<'_>,
+        buf: &[u8],
+    ) -> Poll<io::Result<usize>> {
+        match self.project() {
+            EitherIoProj::A(val) => val.poll_write(cx, buf),
+            EitherIoProj::B(val) => val.poll_write(cx, buf),
+        }
+    }
+
+    fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<io::Result<()>> {
+        match self.project() {
+            EitherIoProj::A(val) => val.poll_flush(cx),
+            EitherIoProj::B(val) => val.poll_flush(cx),
+        }
+    }
+
+    fn poll_shutdown(
+        self: Pin<&mut Self>,
+        cx: &mut Context<'_>,
+    ) -> Poll<io::Result<()>> {
+        match self.project() {
+            EitherIoProj::A(val) => val.poll_shutdown(cx),
+            EitherIoProj::B(val) => val.poll_shutdown(cx),
+        }
+    }
+}

actix-http/src/client/connector.rs

@@ -0,0 +1,534 @@
+use std::fmt;
+use std::marker::PhantomData;
+use std::time::Duration;
+
+use actix_codec::{AsyncRead, AsyncWrite};
+use actix_rt::net::TcpStream;
+use actix_service::{apply_fn, Service, ServiceExt};
+use actix_tls::connect::{
+    default_connector, Connect as TcpConnect, Connection as TcpConnection,
+};
+use actix_utils::timeout::{TimeoutError, TimeoutService};
+use http::Uri;
+
+use super::config::ConnectorConfig;
+use super::connection::Connection;
+use super::error::ConnectError;
+use super::pool::{ConnectionPool, Protocol};
+use super::Connect;
+
+#[cfg(feature = "openssl")]
+use actix_tls::connect::ssl::openssl::SslConnector as OpensslConnector;
+
+#[cfg(feature = "rustls")]
+use actix_tls::connect::ssl::rustls::ClientConfig;
+#[cfg(feature = "rustls")]
+use std::sync::Arc;
+
+#[cfg(any(feature = "openssl", feature = "rustls"))]
+enum SslConnector {
+    #[cfg(feature = "openssl")]
+    Openssl(OpensslConnector),
+    #[cfg(feature = "rustls")]
+    Rustls(Arc<ClientConfig>),
+}
+#[cfg(not(any(feature = "openssl", feature = "rustls")))]
+type SslConnector = ();
+
+/// Manages http client network connectivity
+/// The `Connector` type uses a builder-like combinator pattern for service
+/// construction that finishes by calling the `.finish()` method.
+///
+/// ```rust,ignore
+/// use std::time::Duration;
+/// use actix_http::client::Connector;
+///
+/// let connector = Connector::new()
+///      .timeout(Duration::from_secs(5))
+///      .finish();
+/// ```
+pub struct Connector<T, U> {
+    connector: T,
+    config: ConnectorConfig,
+    #[allow(dead_code)]
+    ssl: SslConnector,
+    _phantom: PhantomData<U>,
+}
+
+trait Io: AsyncRead + AsyncWrite + Unpin {}
+impl<T: AsyncRead + AsyncWrite + Unpin> Io for T {}
+
+impl Connector<(), ()> {
+    #[allow(clippy::new_ret_no_self, clippy::let_unit_value)]
+    pub fn new() -> Connector<
+        impl Service<
+                TcpConnect<Uri>,
+                Response = TcpConnection<Uri, TcpStream>,
+                Error = actix_tls::connect::ConnectError,
+            > + Clone,
+        TcpStream,
+    > {
+        Connector {
+            ssl: Self::build_ssl(vec![b"h2".to_vec(), b"http/1.1".to_vec()]),
+            connector: default_connector(),
+            config: ConnectorConfig::default(),
+            _phantom: PhantomData,
+        }
+    }
+
+    // Build Ssl connector with openssl, based on supplied alpn protocols
+    #[cfg(feature = "openssl")]
+    fn build_ssl(protocols: Vec<Vec<u8>>) -> SslConnector {
+        use actix_tls::connect::ssl::openssl::SslMethod;
+        use bytes::{BufMut, BytesMut};
+
+        let mut alpn = BytesMut::with_capacity(20);
+        for proto in protocols.iter() {
+            alpn.put_u8(proto.len() as u8);
+            alpn.put(proto.as_slice());
+        }
+
+        let mut ssl = OpensslConnector::builder(SslMethod::tls()).unwrap();
+        let _ = ssl
+            .set_alpn_protos(&alpn)
+            .map_err(|e| error!("Can not set alpn protocol: {:?}", e));
+        SslConnector::Openssl(ssl.build())
+    }
+
+    // Build Ssl connector with rustls, based on supplied alpn protocols
+    #[cfg(all(not(feature = "openssl"), feature = "rustls"))]
+    fn build_ssl(protocols: Vec<Vec<u8>>) -> SslConnector {
+        let mut config = ClientConfig::new();
+        config.set_protocols(&protocols);
+        config
+            .root_store
+            .add_server_trust_anchors(&actix_tls::accept::rustls::TLS_SERVER_ROOTS);
+        SslConnector::Rustls(Arc::new(config))
+    }
+
+    // ssl turned off, provides empty ssl connector
+    #[cfg(not(any(feature = "openssl", feature = "rustls")))]
+    fn build_ssl(_: Vec<Vec<u8>>) -> SslConnector {}
+}
+
+impl<T, U> Connector<T, U> {
+    /// Use custom connector.
+    pub fn connector<T1, U1>(self, connector: T1) -> Connector<T1, U1>
+    where
+        U1: AsyncRead + AsyncWrite + Unpin + fmt::Debug,
+        T1: Service<
+                TcpConnect<Uri>,
+                Response = TcpConnection<Uri, U1>,
+                Error = actix_tls::connect::ConnectError,
+            > + Clone,
+    {
+        Connector {
+            connector,
+            config: self.config,
+            ssl: self.ssl,
+            _phantom: PhantomData,
+        }
+    }
+}
+
+impl<T, U> Connector<T, U>
+where
+    U: AsyncRead + AsyncWrite + Unpin + fmt::Debug + 'static,
+    T: Service<
+            TcpConnect<Uri>,
+            Response = TcpConnection<Uri, U>,
+            Error = actix_tls::connect::ConnectError,
+        > + Clone
+        + 'static,
+{
+    /// Connection timeout, i.e. max time to connect to remote host including dns name resolution.
+    /// Set to 1 second by default.
+    pub fn timeout(mut self, timeout: Duration) -> Self {
+        self.config.timeout = timeout;
+        self
+    }
+
+    #[cfg(feature = "openssl")]
+    /// Use custom `SslConnector` instance.
+    pub fn ssl(mut self, connector: OpensslConnector) -> Self {
+        self.ssl = SslConnector::Openssl(connector);
+        self
+    }
+
+    #[cfg(feature = "rustls")]
+    pub fn rustls(mut self, connector: Arc<ClientConfig>) -> Self {
+        self.ssl = SslConnector::Rustls(connector);
+        self
+    }
+
+    /// Maximum supported http major version
+    /// Supported versions http/1.1, http/2
+    pub fn max_http_version(mut self, val: http::Version) -> Self {
+        let versions = match val {
+            http::Version::HTTP_11 => vec![b"http/1.1".to_vec()],
+            http::Version::HTTP_2 => vec![b"h2".to_vec(), b"http/1.1".to_vec()],
+            _ => {
+                unimplemented!("actix-http:client: supported versions http/1.1, http/2")
+            }
+        };
+        self.ssl = Connector::build_ssl(versions);
+        self
+    }
+
+    /// Indicates the initial window size (in octets) for
+    /// HTTP2 stream-level flow control for received data.
+    ///
+    /// The default value is 65,535 and is good for APIs, but not for big objects.
+    pub fn initial_window_size(mut self, size: u32) -> Self {
+        self.config.stream_window_size = size;
+        self
+    }
+
+    /// Indicates the initial window size (in octets) for
+    /// HTTP2 connection-level flow control for received data.
+    ///
+    /// The default value is 65,535 and is good for APIs, but not for big objects.
+    pub fn initial_connection_window_size(mut self, size: u32) -> Self {
+        self.config.conn_window_size = size;
+        self
+    }
+
+    /// Set total number of simultaneous connections per type of scheme.
+    ///
+    /// If limit is 0, the connector has no limit.
+    /// The default limit size is 100.
+    pub fn limit(mut self, limit: usize) -> Self {
+        self.config.limit = limit;
+        self
+    }
+
+    /// Set keep-alive period for opened connection.
+    ///
+    /// Keep-alive period is the period between connection usage. If
+    /// the delay between repeated usages of the same connection
+    /// exceeds this period, the connection is closed.
+    /// Default keep-alive period is 15 seconds.
+    pub fn conn_keep_alive(mut self, dur: Duration) -> Self {
+        self.config.conn_keep_alive = dur;
+        self
+    }
+
+    /// Set max lifetime period for connection.
+    ///
+    /// Connection lifetime is max lifetime of any opened connection
+    /// until it is closed regardless of keep-alive period.
+    /// Default lifetime period is 75 seconds.
+    pub fn conn_lifetime(mut self, dur: Duration) -> Self {
+        self.config.conn_lifetime = dur;
+        self
+    }
+
+    /// Set server connection disconnect timeout in milliseconds.
+    ///
+    /// Defines a timeout for disconnect connection. If a disconnect procedure does not complete
+    /// within this time, the socket get dropped. This timeout affects only secure connections.
+    ///
+    /// To disable timeout set value to 0.
+    ///
+    /// By default disconnect timeout is set to 3000 milliseconds.
+    pub fn disconnect_timeout(mut self, dur: Duration) -> Self {
+        self.config.disconnect_timeout = Some(dur);
+        self
+    }
+
+    /// Finish configuration process and create connector service.
+    /// The Connector builder always concludes by calling `finish()` last in
+    /// its combinator chain.
+    pub fn finish(
+        self,
+    ) -> impl Service<Connect, Response = impl Connection, Error = ConnectError> + Clone
+    {
+        #[cfg(not(any(feature = "openssl", feature = "rustls")))]
+        {
+            let connector = TimeoutService::new(
+                self.config.timeout,
+                apply_fn(self.connector, |msg: Connect, srv| {
+                    srv.call(TcpConnect::new(msg.uri).set_addr(msg.addr))
+                })
+                .map_err(ConnectError::from)
+                .map(|stream| (stream.into_parts().0, Protocol::Http1)),
+            )
+            .map_err(|e| match e {
+                TimeoutError::Service(e) => e,
+                TimeoutError::Timeout => ConnectError::Timeout,
+            });
+
+            connect_impl::InnerConnector {
+                tcp_pool: ConnectionPool::new(
+                    connector,
+                    self.config.no_disconnect_timeout(),
+                ),
+            }
+        }
+        #[cfg(any(feature = "openssl", feature = "rustls"))]
+        {
+            const H2: &[u8] = b"h2";
+            use actix_service::{boxed::service, pipeline};
+            #[cfg(feature = "openssl")]
+            use actix_tls::connect::ssl::openssl::OpensslConnector;
+            #[cfg(feature = "rustls")]
+            use actix_tls::connect::ssl::rustls::{RustlsConnector, Session};
+
+            let ssl_service = TimeoutService::new(
+                self.config.timeout,
+                pipeline(
+                    apply_fn(self.connector.clone(), |msg: Connect, srv| {
+                        srv.call(TcpConnect::new(msg.uri).set_addr(msg.addr))
+                    })
+                    .map_err(ConnectError::from),
+                )
+                .and_then(match self.ssl {
+                    #[cfg(feature = "openssl")]
+                    SslConnector::Openssl(ssl) => service(
+                        OpensslConnector::service(ssl)
+                            .map(|stream| {
+                                let sock = stream.into_parts().0;
+                                let h2 = sock
+                                    .ssl()
+                                    .selected_alpn_protocol()
+                                    .map(|protos| protos.windows(2).any(|w| w == H2))
+                                    .unwrap_or(false);
+                                if h2 {
+                                    (Box::new(sock) as Box<dyn Io>, Protocol::Http2)
+                                } else {
+                                    (Box::new(sock) as Box<dyn Io>, Protocol::Http1)
+                                }
+                            })
+                            .map_err(ConnectError::from),
+                    ),
+                    #[cfg(feature = "rustls")]
+                    SslConnector::Rustls(ssl) => service(
+                        RustlsConnector::service(ssl)
+                            .map_err(ConnectError::from)
+                            .map(|stream| {
+                                let sock = stream.into_parts().0;
+                                let h2 = sock
+                                    .get_ref()
+                                    .1
+                                    .get_alpn_protocol()
+                                    .map(|protos| protos.windows(2).any(|w| w == H2))
+                                    .unwrap_or(false);
+                                if h2 {
+                                    (Box::new(sock) as Box<dyn Io>, Protocol::Http2)
+                                } else {
+                                    (Box::new(sock) as Box<dyn Io>, Protocol::Http1)
+                                }
+                            }),
+                    ),
+                }),
+            )
+            .map_err(|e| match e {
+                TimeoutError::Service(e) => e,
+                TimeoutError::Timeout => ConnectError::Timeout,
+            });
+
+            let tcp_service = TimeoutService::new(
+                self.config.timeout,
+                apply_fn(self.connector, |msg: Connect, srv| {
+                    srv.call(TcpConnect::new(msg.uri).set_addr(msg.addr))
+                })
+                .map_err(ConnectError::from)
+                .map(|stream| (stream.into_parts().0, Protocol::Http1)),
+            )
+            .map_err(|e| match e {
+                TimeoutError::Service(e) => e,
+                TimeoutError::Timeout => ConnectError::Timeout,
+            });
+
+            connect_impl::InnerConnector {
+                tcp_pool: ConnectionPool::new(
+                    tcp_service,
+                    self.config.no_disconnect_timeout(),
+                ),
+                ssl_pool: ConnectionPool::new(ssl_service, self.config),
+            }
+        }
+    }
+}
+
+#[cfg(not(any(feature = "openssl", feature = "rustls")))]
+mod connect_impl {
+    use std::task::{Context, Poll};
+
+    use futures_util::future::{err, Either, Ready};
+
+    use super::*;
+    use crate::client::connection::IoConnection;
+
+    pub(crate) struct InnerConnector<T, Io>
+    where
+        Io: AsyncRead + AsyncWrite + Unpin + 'static,
+        T: Service<Connect, Response = (Io, Protocol), Error = ConnectError> + 'static,
+    {
+        pub(crate) tcp_pool: ConnectionPool<T, Io>,
+    }
+
+    impl<T, Io> Clone for InnerConnector<T, Io>
+    where
+        Io: AsyncRead + AsyncWrite + Unpin + 'static,
+        T: Service<Connect, Response = (Io, Protocol), Error = ConnectError> + 'static,
+    {
+        fn clone(&self) -> Self {
+            InnerConnector {
+                tcp_pool: self.tcp_pool.clone(),
+            }
+        }
+    }
+
+    impl<T, Io> Service<Connect> for InnerConnector<T, Io>
+    where
+        Io: AsyncRead + AsyncWrite + Unpin + 'static,
+        T: Service<Connect, Response = (Io, Protocol), Error = ConnectError> + 'static,
+    {
+        type Response = IoConnection<Io>;
+        type Error = ConnectError;
+        type Future = Either<
+            <ConnectionPool<T, Io> as Service<Connect>>::Future,
+            Ready<Result<IoConnection<Io>, ConnectError>>,
+        >;
+
+        fn poll_ready(&mut self, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
+            self.tcp_pool.poll_ready(cx)
+        }
+
+        fn call(&mut self, req: Connect) -> Self::Future {
+            match req.uri.scheme_str() {
+                Some("https") | Some("wss") => {
+                    Either::Right(err(ConnectError::SslIsNotSupported))
+                }
+                _ => Either::Left(self.tcp_pool.call(req)),
+            }
+        }
+    }
+}
+
+#[cfg(any(feature = "openssl", feature = "rustls"))]
+mod connect_impl {
+    use std::future::Future;
+    use std::marker::PhantomData;
+    use std::pin::Pin;
+    use std::task::{Context, Poll};
+
+    use futures_core::ready;
+    use futures_util::future::Either;
+
+    use super::*;
+    use crate::client::connection::EitherConnection;
+
+    pub(crate) struct InnerConnector<T1, T2, Io1, Io2>
+    where
+        Io1: AsyncRead + AsyncWrite + Unpin + 'static,
+        Io2: AsyncRead + AsyncWrite + Unpin + 'static,
+        T1: Service<Connect, Response = (Io1, Protocol), Error = ConnectError>,
+        T2: Service<Connect, Response = (Io2, Protocol), Error = ConnectError>,
+    {
+        pub(crate) tcp_pool: ConnectionPool<T1, Io1>,
+        pub(crate) ssl_pool: ConnectionPool<T2, Io2>,
+    }
+
+    impl<T1, T2, Io1, Io2> Clone for InnerConnector<T1, T2, Io1, Io2>
+    where
+        Io1: AsyncRead + AsyncWrite + Unpin + 'static,
+        Io2: AsyncRead + AsyncWrite + Unpin + 'static,
+        T1: Service<Connect, Response = (Io1, Protocol), Error = ConnectError> + 'static,
+        T2: Service<Connect, Response = (Io2, Protocol), Error = ConnectError> + 'static,
+    {
+        fn clone(&self) -> Self {
+            InnerConnector {
+                tcp_pool: self.tcp_pool.clone(),
+                ssl_pool: self.ssl_pool.clone(),
+            }
+        }
+    }
+
+    impl<T1, T2, Io1, Io2> Service<Connect> for InnerConnector<T1, T2, Io1, Io2>
+    where
+        Io1: AsyncRead + AsyncWrite + Unpin + 'static,
+        Io2: AsyncRead + AsyncWrite + Unpin + 'static,
+        T1: Service<Connect, Response = (Io1, Protocol), Error = ConnectError> + 'static,
+        T2: Service<Connect, Response = (Io2, Protocol), Error = ConnectError> + 'static,
+    {
+        type Response = EitherConnection<Io1, Io2>;
+        type Error = ConnectError;
+        type Future = Either<
+            InnerConnectorResponseA<T1, Io1, Io2>,
+            InnerConnectorResponseB<T2, Io1, Io2>,
+        >;
+
+        fn poll_ready(&mut self, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
+            self.tcp_pool.poll_ready(cx)
+        }
+
+        fn call(&mut self, req: Connect) -> Self::Future {
+            match req.uri.scheme_str() {
+                Some("https") | Some("wss") => Either::Right(InnerConnectorResponseB {
+                    fut: self.ssl_pool.call(req),
+                    _phantom: PhantomData,
+                }),
+                _ => Either::Left(InnerConnectorResponseA {
+                    fut: self.tcp_pool.call(req),
+                    _phantom: PhantomData,
+                }),
+            }
+        }
+    }
+
+    #[pin_project::pin_project]
+    pub(crate) struct InnerConnectorResponseA<T, Io1, Io2>
+    where
+        Io1: AsyncRead + AsyncWrite + Unpin + 'static,
+        T: Service<Connect, Response = (Io1, Protocol), Error = ConnectError> + 'static,
+    {
+        #[pin]
+        fut: <ConnectionPool<T, Io1> as Service<Connect>>::Future,
+        _phantom: PhantomData<Io2>,
+    }
+
+    impl<T, Io1, Io2> Future for InnerConnectorResponseA<T, Io1, Io2>
+    where
+        T: Service<Connect, Response = (Io1, Protocol), Error = ConnectError> + 'static,
+        Io1: AsyncRead + AsyncWrite + Unpin + 'static,
+        Io2: AsyncRead + AsyncWrite + Unpin + 'static,
+    {
+        type Output = Result<EitherConnection<Io1, Io2>, ConnectError>;
+
+        fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
+            Poll::Ready(
+                ready!(Pin::new(&mut self.get_mut().fut).poll(cx))
+                    .map(EitherConnection::A),
+            )
+        }
+    }
+
+    #[pin_project::pin_project]
+    pub(crate) struct InnerConnectorResponseB<T, Io1, Io2>
+    where
+        Io2: AsyncRead + AsyncWrite + Unpin + 'static,
+        T: Service<Connect, Response = (Io2, Protocol), Error = ConnectError> + 'static,
+    {
+        #[pin]
+        fut: <ConnectionPool<T, Io2> as Service<Connect>>::Future,
+        _phantom: PhantomData<Io1>,
+    }
+
+    impl<T, Io1, Io2> Future for InnerConnectorResponseB<T, Io1, Io2>
+    where
+        T: Service<Connect, Response = (Io2, Protocol), Error = ConnectError> + 'static,
+        Io1: AsyncRead + AsyncWrite + Unpin + 'static,
+        Io2: AsyncRead + AsyncWrite + Unpin + 'static,
+    {
+        type Output = Result<EitherConnection<Io1, Io2>, ConnectError>;
+
+        fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
+            Poll::Ready(
+                ready!(Pin::new(&mut self.get_mut().fut).poll(cx))
+                    .map(EitherConnection::B),
+            )
+        }
+    }
+}

actix-http/src/client/error.rs

@@ -0,0 +1,145 @@
+use std::io;
+
+use actix_tls::connect::resolver::ResolveError;
+use derive_more::{Display, From};
+
+#[cfg(feature = "openssl")]
+use actix_tls::accept::openssl::SslError;
+
+use crate::error::{Error, ParseError, ResponseError};
+use crate::http::{Error as HttpError, StatusCode};
+
+/// A set of errors that can occur while connecting to an HTTP host
+#[derive(Debug, Display, From)]
+pub enum ConnectError {
+    /// SSL feature is not enabled
+    #[display(fmt = "SSL is not supported")]
+    SslIsNotSupported,
+
+    /// SSL error
+    #[cfg(feature = "openssl")]
+    #[display(fmt = "{}", _0)]
+    SslError(SslError),
+
+    /// Failed to resolve the hostname
+    #[display(fmt = "Failed resolving hostname: {}", _0)]
+    Resolver(ResolveError),
+
+    /// No dns records
+    #[display(fmt = "No dns records found for the input")]
+    NoRecords,
+
+    /// Http2 error
+    #[display(fmt = "{}", _0)]
+    H2(h2::Error),
+
+    /// Connecting took too long
+    #[display(fmt = "Timeout while establishing connection")]
+    Timeout,
+
+    /// Connector has been disconnected
+    #[display(fmt = "Internal error: connector has been disconnected")]
+    Disconnected,
+
+    /// Unresolved host name
+    #[display(fmt = "Connector received `Connect` method with unresolved host")]
+    Unresolved,
+
+    /// Connection io error
+    #[display(fmt = "{}", _0)]
+    Io(io::Error),
+}
+
+impl std::error::Error for ConnectError {}
+
+impl From<actix_tls::connect::ConnectError> for ConnectError {
+    fn from(err: actix_tls::connect::ConnectError) -> ConnectError {
+        match err {
+            actix_tls::connect::ConnectError::Resolver(e) => ConnectError::Resolver(e),
+            actix_tls::connect::ConnectError::NoRecords => ConnectError::NoRecords,
+            actix_tls::connect::ConnectError::InvalidInput => panic!(),
+            actix_tls::connect::ConnectError::Unresolved => ConnectError::Unresolved,
+            actix_tls::connect::ConnectError::Io(e) => ConnectError::Io(e),
+        }
+    }
+}
+
+#[derive(Debug, Display, From)]
+pub enum InvalidUrl {
+    #[display(fmt = "Missing url scheme")]
+    MissingScheme,
+    #[display(fmt = "Unknown url scheme")]
+    UnknownScheme,
+    #[display(fmt = "Missing host name")]
+    MissingHost,
+    #[display(fmt = "Url parse error: {}", _0)]
+    HttpError(http::Error),
+}
+
+impl std::error::Error for InvalidUrl {}
+
+/// A set of errors that can occur during request sending and response reading
+#[derive(Debug, Display, From)]
+pub enum SendRequestError {
+    /// Invalid URL
+    #[display(fmt = "Invalid URL: {}", _0)]
+    Url(InvalidUrl),
+    /// Failed to connect to host
+    #[display(fmt = "Failed to connect to host: {}", _0)]
+    Connect(ConnectError),
+    /// Error sending request
+    Send(io::Error),
+    /// Error parsing response
+    Response(ParseError),
+    /// Http error
+    #[display(fmt = "{}", _0)]
+    Http(HttpError),
+    /// Http2 error
+    #[display(fmt = "{}", _0)]
+    H2(h2::Error),
+    /// Response took too long
+    #[display(fmt = "Timeout while waiting for response")]
+    Timeout,
+    /// Tunnels are not supported for http2 connection
+    #[display(fmt = "Tunnels are not supported for http2 connection")]
+    TunnelNotSupported,
+    /// Error sending request body
+    Body(Error),
+}
+
+impl std::error::Error for SendRequestError {}
+
+/// Convert `SendRequestError` to a server `Response`
+impl ResponseError for SendRequestError {
+    fn status_code(&self) -> StatusCode {
+        match *self {
+            SendRequestError::Connect(ConnectError::Timeout) => {
+                StatusCode::GATEWAY_TIMEOUT
+            }
+            SendRequestError::Connect(_) => StatusCode::BAD_REQUEST,
+            _ => StatusCode::INTERNAL_SERVER_ERROR,
+        }
+    }
+}
+
+/// A set of errors that can occur during freezing a request
+#[derive(Debug, Display, From)]
+pub enum FreezeRequestError {
+    /// Invalid URL
+    #[display(fmt = "Invalid URL: {}", _0)]
+    Url(InvalidUrl),
+    /// Http error
+    #[display(fmt = "{}", _0)]
+    Http(HttpError),
+}
+
+impl std::error::Error for FreezeRequestError {}
+
+impl From<FreezeRequestError> for SendRequestError {
+    fn from(e: FreezeRequestError) -> Self {
+        match e {
+            FreezeRequestError::Url(e) => e.into(),
+            FreezeRequestError::Http(e) => e.into(),
+        }
+    }
+}

actix-http/src/client/h1proto.rs

@@ -0,0 +1,291 @@
+use std::io::Write;
+use std::pin::Pin;
+use std::task::{Context, Poll};
+use std::{io, time};
+
+use actix_codec::{AsyncRead, AsyncWrite, Framed, ReadBuf};
+use bytes::buf::BufMut;
+use bytes::{Bytes, BytesMut};
+use futures_core::Stream;
+use futures_util::future::poll_fn;
+use futures_util::{pin_mut, SinkExt, StreamExt};
+
+use crate::error::PayloadError;
+use crate::h1;
+use crate::header::HeaderMap;
+use crate::http::header::{IntoHeaderValue, HOST};
+use crate::message::{RequestHeadType, ResponseHead};
+use crate::payload::{Payload, PayloadStream};
+
+use super::connection::{ConnectionLifetime, ConnectionType, IoConnection};
+use super::error::{ConnectError, SendRequestError};
+use super::pool::Acquired;
+use crate::body::{BodySize, MessageBody};
+
+pub(crate) async fn send_request<T, B>(
+    io: T,
+    mut head: RequestHeadType,
+    body: B,
+    created: time::Instant,
+    pool: Option<Acquired<T>>,
+) -> Result<(ResponseHead, Payload), SendRequestError>
+where
+    T: AsyncRead + AsyncWrite + Unpin + 'static,
+    B: MessageBody,
+{
+    // set request host header
+    if !head.as_ref().headers.contains_key(HOST)
+        && !head.extra_headers().iter().any(|h| h.contains_key(HOST))
+    {
+        if let Some(host) = head.as_ref().uri.host() {
+            let mut wrt = BytesMut::with_capacity(host.len() + 5).writer();
+
+            let _ = match head.as_ref().uri.port_u16() {
+                None | Some(80) | Some(443) => write!(wrt, "{}", host),
+                Some(port) => write!(wrt, "{}:{}", host, port),
+            };
+
+            match wrt.get_mut().split().freeze().try_into() {
+                Ok(value) => match head {
+                    RequestHeadType::Owned(ref mut head) => {
+                        head.headers.insert(HOST, value)
+                    }
+                    RequestHeadType::Rc(_, ref mut extra_headers) => {
+                        let headers = extra_headers.get_or_insert(HeaderMap::new());
+                        headers.insert(HOST, value)
+                    }
+                },
+                Err(e) => log::error!("Can not set HOST header {}", e),
+            }
+        }
+    }
+
+    let io = H1Connection {
+        created,
+        pool,
+        io: Some(io),
+    };
+
+    // create Framed and send request
+    let mut framed_inner = Framed::new(io, h1::ClientCodec::default());
+    framed_inner.send((head, body.size()).into()).await?;
+
+    // send request body
+    match body.size() {
+        BodySize::None | BodySize::Empty | BodySize::Sized(0) => {}
+        _ => send_body(body, Pin::new(&mut framed_inner)).await?,
+    };
+
+    // read response and init read body
+    let res = Pin::new(&mut framed_inner).into_future().await;
+    let (head, framed) = if let (Some(result), framed) = res {
+        let item = result.map_err(SendRequestError::from)?;
+        (item, framed)
+    } else {
+        return Err(SendRequestError::from(ConnectError::Disconnected));
+    };
+
+    match framed.codec_ref().message_type() {
+        h1::MessageType::None => {
+            let force_close = !framed.codec_ref().keepalive();
+            release_connection(framed, force_close);
+            Ok((head, Payload::None))
+        }
+        _ => {
+            let pl: PayloadStream = PlStream::new(framed_inner).boxed_local();
+            Ok((head, pl.into()))
+        }
+    }
+}
+
+pub(crate) async fn open_tunnel<T>(
+    io: T,
+    head: RequestHeadType,
+) -> Result<(ResponseHead, Framed<T, h1::ClientCodec>), SendRequestError>
+where
+    T: AsyncRead + AsyncWrite + Unpin + 'static,
+{
+    // create Framed and send request
+    let mut framed = Framed::new(io, h1::ClientCodec::default());
+    framed.send((head, BodySize::None).into()).await?;
+
+    // read response
+    if let (Some(result), framed) = framed.into_future().await {
+        let head = result.map_err(SendRequestError::from)?;
+        Ok((head, framed))
+    } else {
+        Err(SendRequestError::from(ConnectError::Disconnected))
+    }
+}
+
+/// send request body to the peer
+pub(crate) async fn send_body<T, B>(
+    body: B,
+    mut framed: Pin<&mut Framed<T, h1::ClientCodec>>,
+) -> Result<(), SendRequestError>
+where
+    T: ConnectionLifetime + Unpin,
+    B: MessageBody,
+{
+    pin_mut!(body);
+
+    let mut eof = false;
+    while !eof {
+        while !eof && !framed.as_ref().is_write_buf_full() {
+            match poll_fn(|cx| body.as_mut().poll_next(cx)).await {
+                Some(result) => {
+                    framed.as_mut().write(h1::Message::Chunk(Some(result?)))?;
+                }
+                None => {
+                    eof = true;
+                    framed.as_mut().write(h1::Message::Chunk(None))?;
+                }
+            }
+        }
+
+        if !framed.as_ref().is_write_buf_empty() {
+            poll_fn(|cx| match framed.as_mut().flush(cx) {
+                Poll::Ready(Ok(_)) => Poll::Ready(Ok(())),
+                Poll::Ready(Err(err)) => Poll::Ready(Err(err)),
+                Poll::Pending => {
+                    if !framed.as_ref().is_write_buf_full() {
+                        Poll::Ready(Ok(()))
+                    } else {
+                        Poll::Pending
+                    }
+                }
+            })
+            .await?;
+        }
+    }
+
+    SinkExt::flush(Pin::into_inner(framed)).await?;
+    Ok(())
+}
+
+#[doc(hidden)]
+/// HTTP client connection
+pub struct H1Connection<T> {
+    /// T should be `Unpin`
+    io: Option<T>,
+    created: time::Instant,
+    pool: Option<Acquired<T>>,
+}
+
+impl<T> ConnectionLifetime for H1Connection<T>
+where
+    T: AsyncRead + AsyncWrite + Unpin + 'static,
+{
+    /// Close connection
+    fn close(mut self: Pin<&mut Self>) {
+        if let Some(mut pool) = self.pool.take() {
+            if let Some(io) = self.io.take() {
+                pool.close(IoConnection::new(
+                    ConnectionType::H1(io),
+                    self.created,
+                    None,
+                ));
+            }
+        }
+    }
+
+    /// Release this connection to the connection pool
+    fn release(mut self: Pin<&mut Self>) {
+        if let Some(mut pool) = self.pool.take() {
+            if let Some(io) = self.io.take() {
+                pool.release(IoConnection::new(
+                    ConnectionType::H1(io),
+                    self.created,
+                    None,
+                ));
+            }
+        }
+    }
+}
+
+impl<T: AsyncRead + AsyncWrite + Unpin + 'static> AsyncRead for H1Connection<T> {
+    fn poll_read(
+        mut self: Pin<&mut Self>,
+        cx: &mut Context<'_>,
+        buf: &mut ReadBuf<'_>,
+    ) -> Poll<io::Result<()>> {
+        Pin::new(&mut self.io.as_mut().unwrap()).poll_read(cx, buf)
+    }
+}
+
+impl<T: AsyncRead + AsyncWrite + Unpin + 'static> AsyncWrite for H1Connection<T> {
+    fn poll_write(
+        mut self: Pin<&mut Self>,
+        cx: &mut Context<'_>,
+        buf: &[u8],
+    ) -> Poll<io::Result<usize>> {
+        Pin::new(&mut self.io.as_mut().unwrap()).poll_write(cx, buf)
+    }
+
+    fn poll_flush(
+        mut self: Pin<&mut Self>,
+        cx: &mut Context<'_>,
+    ) -> Poll<io::Result<()>> {
+        Pin::new(self.io.as_mut().unwrap()).poll_flush(cx)
+    }
+
+    fn poll_shutdown(
+        mut self: Pin<&mut Self>,
+        cx: &mut Context<'_>,
+    ) -> Poll<Result<(), io::Error>> {
+        Pin::new(self.io.as_mut().unwrap()).poll_shutdown(cx)
+    }
+}
+
+#[pin_project::pin_project]
+pub(crate) struct PlStream<Io> {
+    #[pin]
+    framed: Option<Framed<Io, h1::ClientPayloadCodec>>,
+}
+
+impl<Io: ConnectionLifetime> PlStream<Io> {
+    fn new(framed: Framed<Io, h1::ClientCodec>) -> Self {
+        let framed = framed.into_map_codec(|codec| codec.into_payload_codec());
+
+        PlStream {
+            framed: Some(framed),
+        }
+    }
+}
+
+impl<Io: ConnectionLifetime> Stream for PlStream<Io> {
+    type Item = Result<Bytes, PayloadError>;
+
+    fn poll_next(
+        self: Pin<&mut Self>,
+        cx: &mut Context<'_>,
+    ) -> Poll<Option<Self::Item>> {
+        let mut this = self.project();
+
+        match this.framed.as_mut().as_pin_mut().unwrap().next_item(cx)? {
+            Poll::Pending => Poll::Pending,
+            Poll::Ready(Some(chunk)) => {
+                if let Some(chunk) = chunk {
+                    Poll::Ready(Some(Ok(chunk)))
+                } else {
+                    let framed = this.framed.as_mut().as_pin_mut().unwrap();
+                    let force_close = !framed.codec_ref().keepalive();
+                    release_connection(framed, force_close);
+                    Poll::Ready(None)
+                }
+            }
+            Poll::Ready(None) => Poll::Ready(None),
+        }
+    }
+}
+
+fn release_connection<T, U>(framed: Pin<&mut Framed<T, U>>, force_close: bool)
+where
+    T: ConnectionLifetime,
+{
+    if !force_close && framed.is_read_buf_empty() && framed.is_write_buf_empty() {
+        framed.io_pin().release()
+    } else {
+        framed.io_pin().close()
+    }
+}

actix-http/src/client/h2proto.rs

@@ -0,0 +1,203 @@
+use std::convert::TryFrom;
+use std::future::Future;
+use std::time;
+
+use actix_codec::{AsyncRead, AsyncWrite};
+use bytes::Bytes;
+use futures_util::future::poll_fn;
+use futures_util::pin_mut;
+use h2::{
+    client::{Builder, Connection, SendRequest},
+    SendStream,
+};
+use http::header::{HeaderValue, CONNECTION, CONTENT_LENGTH, TRANSFER_ENCODING};
+use http::{request::Request, Method, Version};
+
+use crate::body::{BodySize, MessageBody};
+use crate::header::HeaderMap;
+use crate::message::{RequestHeadType, ResponseHead};
+use crate::payload::Payload;
+
+use super::config::ConnectorConfig;
+use super::connection::{ConnectionType, IoConnection};
+use super::error::SendRequestError;
+use super::pool::Acquired;
+
+pub(crate) async fn send_request<T, B>(
+    mut io: SendRequest<Bytes>,
+    head: RequestHeadType,
+    body: B,
+    created: time::Instant,
+    pool: Option<Acquired<T>>,
+) -> Result<(ResponseHead, Payload), SendRequestError>
+where
+    T: AsyncRead + AsyncWrite + Unpin + 'static,
+    B: MessageBody,
+{
+    trace!("Sending client request: {:?} {:?}", head, body.size());
+    let head_req = head.as_ref().method == Method::HEAD;
+    let length = body.size();
+    let eof = matches!(
+        length,
+        BodySize::None | BodySize::Empty | BodySize::Sized(0)
+    );
+
+    let mut req = Request::new(());
+    *req.uri_mut() = head.as_ref().uri.clone();
+    *req.method_mut() = head.as_ref().method.clone();
+    *req.version_mut() = Version::HTTP_2;
+
+    let mut skip_len = true;
+    // let mut has_date = false;
+
+    // Content length
+    let _ = match length {
+        BodySize::None => None,
+        BodySize::Stream => {
+            skip_len = false;
+            None
+        }
+        BodySize::Empty => req
+            .headers_mut()
+            .insert(CONTENT_LENGTH, HeaderValue::from_static("0")),
+        BodySize::Sized(len) => req.headers_mut().insert(
+            CONTENT_LENGTH,
+            HeaderValue::try_from(format!("{}", len)).unwrap(),
+        ),
+    };
+
+    // Extracting extra headers from RequestHeadType. HeaderMap::new() does not allocate.
+    let (head, extra_headers) = match head {
+        RequestHeadType::Owned(head) => (RequestHeadType::Owned(head), HeaderMap::new()),
+        RequestHeadType::Rc(head, extra_headers) => (
+            RequestHeadType::Rc(head, None),
+            extra_headers.unwrap_or_else(HeaderMap::new),
+        ),
+    };
+
+    // merging headers from head and extra headers.
+    let headers = head
+        .as_ref()
+        .headers
+        .iter()
+        .filter(|(name, _)| !extra_headers.contains_key(*name))
+        .chain(extra_headers.iter());
+
+    // copy headers
+    for (key, value) in headers {
+        match *key {
+            CONNECTION | TRANSFER_ENCODING => continue, // http2 specific
+            CONTENT_LENGTH if skip_len => continue,
+            // DATE => has_date = true,
+            _ => {}
+        }
+        req.headers_mut().append(key, value.clone());
+    }
+
+    let res = poll_fn(|cx| io.poll_ready(cx)).await;
+    if let Err(e) = res {
+        release(io, pool, created, e.is_io());
+        return Err(SendRequestError::from(e));
+    }
+
+    let resp = match io.send_request(req, eof) {
+        Ok((fut, send)) => {
+            release(io, pool, created, false);
+
+            if !eof {
+                send_body(body, send).await?;
+            }
+            fut.await.map_err(SendRequestError::from)?
+        }
+        Err(e) => {
+            release(io, pool, created, e.is_io());
+            return Err(e.into());
+        }
+    };
+
+    let (parts, body) = resp.into_parts();
+    let payload = if head_req { Payload::None } else { body.into() };
+
+    let mut head = ResponseHead::new(parts.status);
+    head.version = parts.version;
+    head.headers = parts.headers.into();
+    Ok((head, payload))
+}
+
+async fn send_body<B: MessageBody>(
+    body: B,
+    mut send: SendStream<Bytes>,
+) -> Result<(), SendRequestError> {
+    let mut buf = None;
+    pin_mut!(body);
+    loop {
+        if buf.is_none() {
+            match poll_fn(|cx| body.as_mut().poll_next(cx)).await {
+                Some(Ok(b)) => {
+                    send.reserve_capacity(b.len());
+                    buf = Some(b);
+                }
+                Some(Err(e)) => return Err(e.into()),
+                None => {
+                    if let Err(e) = send.send_data(Bytes::new(), true) {
+                        return Err(e.into());
+                    }
+                    send.reserve_capacity(0);
+                    return Ok(());
+                }
+            }
+        }
+
+        match poll_fn(|cx| send.poll_capacity(cx)).await {
+            None => return Ok(()),
+            Some(Ok(cap)) => {
+                let b = buf.as_mut().unwrap();
+                let len = b.len();
+                let bytes = b.split_to(std::cmp::min(cap, len));
+
+                if let Err(e) = send.send_data(bytes, false) {
+                    return Err(e.into());
+                } else {
+                    if !b.is_empty() {
+                        send.reserve_capacity(b.len());
+                    } else {
+                        buf = None;
+                    }
+                    continue;
+                }
+            }
+            Some(Err(e)) => return Err(e.into()),
+        }
+    }
+}
+
+// release SendRequest object
+fn release<T: AsyncRead + AsyncWrite + Unpin + 'static>(
+    io: SendRequest<Bytes>,
+    pool: Option<Acquired<T>>,
+    created: time::Instant,
+    close: bool,
+) {
+    if let Some(mut pool) = pool {
+        if close {
+            pool.close(IoConnection::new(ConnectionType::H2(io), created, None));
+        } else {
+            pool.release(IoConnection::new(ConnectionType::H2(io), created, None));
+        }
+    }
+}
+
+pub(crate) fn handshake<Io>(
+    io: Io,
+    config: &ConnectorConfig,
+) -> impl Future<Output = Result<(SendRequest<Bytes>, Connection<Io, Bytes>), h2::Error>>
+where
+    Io: AsyncRead + AsyncWrite + Unpin + 'static,
+{
+    let mut builder = Builder::new();
+    builder
+        .initial_window_size(config.stream_window_size)
+        .initial_connection_window_size(config.conn_window_size)
+        .enable_push(false);
+    builder.handshake(io)
+}

actix-http/src/client/mod.rs

@@ -0,0 +1,21 @@
+//! Http client api
+use http::Uri;
+
+mod config;
+mod connection;
+mod connector;
+mod error;
+mod h1proto;
+mod h2proto;
+mod pool;
+
+pub use self::connection::Connection;
+pub use self::connector::Connector;
+pub use self::error::{ConnectError, FreezeRequestError, InvalidUrl, SendRequestError};
+pub use self::pool::Protocol;
+
+#[derive(Clone)]
+pub struct Connect {
+    pub uri: Uri,
+    pub addr: Option<std::net::SocketAddr>,
+}

actix-http/src/client/pool.rs

@@ -0,0 +1,645 @@
+use std::cell::RefCell;
+use std::collections::VecDeque;
+use std::future::Future;
+use std::pin::Pin;
+use std::rc::Rc;
+use std::task::{Context, Poll};
+use std::time::{Duration, Instant};
+
+use actix_codec::{AsyncRead, AsyncWrite, ReadBuf};
+use actix_rt::time::{sleep, Sleep};
+use actix_service::Service;
+use actix_utils::task::LocalWaker;
+use bytes::Bytes;
+use futures_channel::oneshot;
+use futures_util::future::{poll_fn, FutureExt, LocalBoxFuture};
+use fxhash::FxHashMap;
+use h2::client::{Connection, SendRequest};
+use http::uri::Authority;
+use indexmap::IndexSet;
+use pin_project::pin_project;
+use slab::Slab;
+
+use super::config::ConnectorConfig;
+use super::connection::{ConnectionType, IoConnection};
+use super::error::ConnectError;
+use super::h2proto::handshake;
+use super::Connect;
+
+#[derive(Clone, Copy, PartialEq)]
+/// Protocol version
+pub enum Protocol {
+    Http1,
+    Http2,
+}
+
+#[derive(Hash, Eq, PartialEq, Clone, Debug)]
+pub(crate) struct Key {
+    authority: Authority,
+}
+
+impl From<Authority> for Key {
+    fn from(authority: Authority) -> Key {
+        Key { authority }
+    }
+}
+
+/// Connections pool
+pub(crate) struct ConnectionPool<T, Io: 'static>(Rc<RefCell<T>>, Rc<RefCell<Inner<Io>>>);
+
+impl<T, Io> ConnectionPool<T, Io>
+where
+    Io: AsyncRead + AsyncWrite + Unpin + 'static,
+    T: Service<Connect, Response = (Io, Protocol), Error = ConnectError> + 'static,
+{
+    pub(crate) fn new(connector: T, config: ConnectorConfig) -> Self {
+        let connector_rc = Rc::new(RefCell::new(connector));
+        let inner_rc = Rc::new(RefCell::new(Inner {
+            config,
+            acquired: 0,
+            waiters: Slab::new(),
+            waiters_queue: IndexSet::new(),
+            available: FxHashMap::default(),
+            waker: LocalWaker::new(),
+        }));
+
+        // start support future
+        actix_rt::spawn(ConnectorPoolSupport {
+            connector: Rc::clone(&connector_rc),
+            inner: Rc::clone(&inner_rc),
+        });
+
+        ConnectionPool(connector_rc, inner_rc)
+    }
+}
+
+impl<T, Io> Clone for ConnectionPool<T, Io>
+where
+    Io: 'static,
+{
+    fn clone(&self) -> Self {
+        ConnectionPool(self.0.clone(), self.1.clone())
+    }
+}
+
+impl<T, Io> Drop for ConnectionPool<T, Io> {
+    fn drop(&mut self) {
+        // wake up the ConnectorPoolSupport when dropping so it can exit properly.
+        self.1.borrow().waker.wake();
+    }
+}
+
+impl<T, Io> Service<Connect> for ConnectionPool<T, Io>
+where
+    Io: AsyncRead + AsyncWrite + Unpin + 'static,
+    T: Service<Connect, Response = (Io, Protocol), Error = ConnectError> + 'static,
+{
+    type Response = IoConnection<Io>;
+    type Error = ConnectError;
+    type Future = LocalBoxFuture<'static, Result<IoConnection<Io>, ConnectError>>;
+
+    fn poll_ready(&mut self, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
+        self.0.poll_ready(cx)
+    }
+
+    fn call(&mut self, req: Connect) -> Self::Future {
+        let mut connector = self.0.clone();
+        let inner = self.1.clone();
+
+        let fut = async move {
+            let key = if let Some(authority) = req.uri.authority() {
+                authority.clone().into()
+            } else {
+                return Err(ConnectError::Unresolved);
+            };
+
+            // acquire connection
+            match poll_fn(|cx| Poll::Ready(inner.borrow_mut().acquire(&key, cx))).await {
+                Acquire::Acquired(io, created) => {
+                    // use existing connection
+                    Ok(IoConnection::new(
+                        io,
+                        created,
+                        Some(Acquired(key, Some(inner))),
+                    ))
+                }
+                Acquire::Available => {
+                    // open tcp connection
+                    let (io, proto) = connector.call(req).await?;
+
+                    let config = inner.borrow().config.clone();
+
+                    let guard = OpenGuard::new(key, inner);
+
+                    if proto == Protocol::Http1 {
+                        Ok(IoConnection::new(
+                            ConnectionType::H1(io),
+                            Instant::now(),
+                            Some(guard.consume()),
+                        ))
+                    } else {
+                        let (snd, connection) = handshake(io, &config).await?;
+                        actix_rt::spawn(connection.map(|_| ()));
+                        Ok(IoConnection::new(
+                            ConnectionType::H2(snd),
+                            Instant::now(),
+                            Some(guard.consume()),
+                        ))
+                    }
+                }
+                _ => {
+                    // connection is not available, wait
+                    let (rx, token) = inner.borrow_mut().wait_for(req);
+
+                    let guard = WaiterGuard::new(key, token, inner);
+                    let res = match rx.await {
+                        Err(_) => Err(ConnectError::Disconnected),
+                        Ok(res) => res,
+                    };
+                    guard.consume();
+                    res
+                }
+            }
+        };
+
+        fut.boxed_local()
+    }
+}
+
+struct WaiterGuard<Io>
+where
+    Io: AsyncRead + AsyncWrite + Unpin + 'static,
+{
+    key: Key,
+    token: usize,
+    inner: Option<Rc<RefCell<Inner<Io>>>>,
+}
+
+impl<Io> WaiterGuard<Io>
+where
+    Io: AsyncRead + AsyncWrite + Unpin + 'static,
+{
+    fn new(key: Key, token: usize, inner: Rc<RefCell<Inner<Io>>>) -> Self {
+        Self {
+            key,
+            token,
+            inner: Some(inner),
+        }
+    }
+
+    fn consume(mut self) {
+        let _ = self.inner.take();
+    }
+}
+
+impl<Io> Drop for WaiterGuard<Io>
+where
+    Io: AsyncRead + AsyncWrite + Unpin + 'static,
+{
+    fn drop(&mut self) {
+        if let Some(i) = self.inner.take() {
+            let mut inner = i.as_ref().borrow_mut();
+            inner.release_waiter(&self.key, self.token);
+            inner.check_availability();
+        }
+    }
+}
+
+struct OpenGuard<Io>
+where
+    Io: AsyncRead + AsyncWrite + Unpin + 'static,
+{
+    key: Key,
+    inner: Option<Rc<RefCell<Inner<Io>>>>,
+}
+
+impl<Io> OpenGuard<Io>
+where
+    Io: AsyncRead + AsyncWrite + Unpin + 'static,
+{
+    fn new(key: Key, inner: Rc<RefCell<Inner<Io>>>) -> Self {
+        Self {
+            key,
+            inner: Some(inner),
+        }
+    }
+
+    fn consume(mut self) -> Acquired<Io> {
+        Acquired(self.key.clone(), self.inner.take())
+    }
+}
+
+impl<Io> Drop for OpenGuard<Io>
+where
+    Io: AsyncRead + AsyncWrite + Unpin + 'static,
+{
+    fn drop(&mut self) {
+        if let Some(i) = self.inner.take() {
+            let mut inner = i.as_ref().borrow_mut();
+            inner.release();
+            inner.check_availability();
+        }
+    }
+}
+
+enum Acquire<T> {
+    Acquired(ConnectionType<T>, Instant),
+    Available,
+    NotAvailable,
+}
+
+struct AvailableConnection<Io> {
+    io: ConnectionType<Io>,
+    used: Instant,
+    created: Instant,
+}
+
+pub(crate) struct Inner<Io> {
+    config: ConnectorConfig,
+    acquired: usize,
+    available: FxHashMap<Key, VecDeque<AvailableConnection<Io>>>,
+    waiters: Slab<
+        Option<(
+            Connect,
+            oneshot::Sender<Result<IoConnection<Io>, ConnectError>>,
+        )>,
+    >,
+    waiters_queue: IndexSet<(Key, usize)>,
+    waker: LocalWaker,
+}
+
+impl<Io> Inner<Io> {
+    fn reserve(&mut self) {
+        self.acquired += 1;
+    }
+
+    fn release(&mut self) {
+        self.acquired -= 1;
+    }
+
+    fn release_waiter(&mut self, key: &Key, token: usize) {
+        self.waiters.remove(token);
+        let _ = self.waiters_queue.shift_remove(&(key.clone(), token));
+    }
+}
+
+impl<Io> Inner<Io>
+where
+    Io: AsyncRead + AsyncWrite + Unpin + 'static,
+{
+    /// connection is not available, wait
+    fn wait_for(
+        &mut self,
+        connect: Connect,
+    ) -> (
+        oneshot::Receiver<Result<IoConnection<Io>, ConnectError>>,
+        usize,
+    ) {
+        let (tx, rx) = oneshot::channel();
+
+        let key: Key = connect.uri.authority().unwrap().clone().into();
+        let entry = self.waiters.vacant_entry();
+        let token = entry.key();
+        entry.insert(Some((connect, tx)));
+        assert!(self.waiters_queue.insert((key, token)));
+
+        (rx, token)
+    }
+
+    fn acquire(&mut self, key: &Key, cx: &mut Context<'_>) -> Acquire<Io> {
+        // check limits
+        if self.config.limit > 0 && self.acquired >= self.config.limit {
+            return Acquire::NotAvailable;
+        }
+
+        self.reserve();
+
+        // check if open connection is available
+        // cleanup stale connections at the same time
+        if let Some(ref mut connections) = self.available.get_mut(key) {
+            let now = Instant::now();
+            while let Some(conn) = connections.pop_back() {
+                // check if it still usable
+                if (now - conn.used) > self.config.conn_keep_alive
+                    || (now - conn.created) > self.config.conn_lifetime
+                {
+                    if let Some(timeout) = self.config.disconnect_timeout {
+                        if let ConnectionType::H1(io) = conn.io {
+                            actix_rt::spawn(CloseConnection::new(io, timeout))
+                        }
+                    }
+                } else {
+                    let mut io = conn.io;
+                    let mut buf = [0; 2];
+                    let mut read_buf = ReadBuf::new(&mut buf);
+                    if let ConnectionType::H1(ref mut s) = io {
+                        match Pin::new(s).poll_read(cx, &mut read_buf) {
+                            Poll::Pending => {}
+                            Poll::Ready(Ok(())) if !read_buf.filled().is_empty() => {
+                                if let Some(timeout) = self.config.disconnect_timeout {
+                                    if let ConnectionType::H1(io) = io {
+                                        actix_rt::spawn(CloseConnection::new(
+                                            io, timeout,
+                                        ))
+                                    }
+                                }
+                                continue;
+                            }
+                            _ => continue,
+                        }
+                    }
+                    return Acquire::Acquired(io, conn.created);
+                }
+            }
+        }
+        Acquire::Available
+    }
+
+    fn release_conn(&mut self, key: &Key, io: ConnectionType<Io>, created: Instant) {
+        self.acquired -= 1;
+        self.available
+            .entry(key.clone())
+            .or_insert_with(VecDeque::new)
+            .push_back(AvailableConnection {
+                io,
+                created,
+                used: Instant::now(),
+            });
+        self.check_availability();
+    }
+
+    fn release_close(&mut self, io: ConnectionType<Io>) {
+        self.acquired -= 1;
+        if let Some(timeout) = self.config.disconnect_timeout {
+            if let ConnectionType::H1(io) = io {
+                actix_rt::spawn(CloseConnection::new(io, timeout))
+            }
+        }
+        self.check_availability();
+    }
+
+    fn check_availability(&self) {
+        if !self.waiters_queue.is_empty() && self.acquired < self.config.limit {
+            self.waker.wake();
+        }
+    }
+}
+
+#[pin_project::pin_project]
+struct CloseConnection<T> {
+    io: T,
+    #[pin]
+    timeout: Sleep,
+}
+
+impl<T> CloseConnection<T>
+where
+    T: AsyncWrite + Unpin,
+{
+    fn new(io: T, timeout: Duration) -> Self {
+        CloseConnection {
+            io,
+            timeout: sleep(timeout),
+        }
+    }
+}
+
+impl<T> Future for CloseConnection<T>
+where
+    T: AsyncWrite + Unpin,
+{
+    type Output = ();
+
+    fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<()> {
+        let this = self.project();
+
+        match this.timeout.poll(cx) {
+            Poll::Ready(_) => Poll::Ready(()),
+            Poll::Pending => match Pin::new(this.io).poll_shutdown(cx) {
+                Poll::Ready(_) => Poll::Ready(()),
+                Poll::Pending => Poll::Pending,
+            },
+        }
+    }
+}
+
+#[pin_project]
+struct ConnectorPoolSupport<T, Io>
+where
+    Io: AsyncRead + AsyncWrite + Unpin + 'static,
+{
+    connector: T,
+    inner: Rc<RefCell<Inner<Io>>>,
+}
+
+impl<T, Io> Future for ConnectorPoolSupport<T, Io>
+where
+    Io: AsyncRead + AsyncWrite + Unpin + 'static,
+    T: Service<Connect, Response = (Io, Protocol), Error = ConnectError>,
+    T::Future: 'static,
+{
+    type Output = ();
+
+    fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
+        let this = self.project();
+
+        if Rc::strong_count(this.inner) == 1 {
+            // If we are last copy of Inner<Io> it means the ConnectionPool is already gone
+            // and we are safe to exit.
+            return Poll::Ready(());
+        }
+
+        let mut inner = this.inner.borrow_mut();
+        inner.waker.register(cx.waker());
+
+        // check waiters
+        loop {
+            let (key, token) = {
+                if let Some((key, token)) = inner.waiters_queue.get_index(0) {
+                    (key.clone(), *token)
+                } else {
+                    break;
+                }
+            };
+            if inner.waiters.get(token).unwrap().is_none() {
+                continue;
+            }
+
+            match inner.acquire(&key, cx) {
+                Acquire::NotAvailable => break,
+                Acquire::Acquired(io, created) => {
+                    let tx = inner.waiters.get_mut(token).unwrap().take().unwrap().1;
+                    if let Err(conn) = tx.send(Ok(IoConnection::new(
+                        io,
+                        created,
+                        Some(Acquired(key.clone(), Some(this.inner.clone()))),
+                    ))) {
+                        let (io, created) = conn.unwrap().into_inner();
+                        inner.release_conn(&key, io, created);
+                    }
+                }
+                Acquire::Available => {
+                    let (connect, tx) =
+                        inner.waiters.get_mut(token).unwrap().take().unwrap();
+                    OpenWaitingConnection::spawn(
+                        key.clone(),
+                        tx,
+                        this.inner.clone(),
+                        this.connector.call(connect),
+                        inner.config.clone(),
+                    );
+                }
+            }
+            let _ = inner.waiters_queue.swap_remove_index(0);
+        }
+
+        Poll::Pending
+    }
+}
+
+#[pin_project::pin_project(PinnedDrop)]
+struct OpenWaitingConnection<F, Io>
+where
+    Io: AsyncRead + AsyncWrite + Unpin + 'static,
+{
+    #[pin]
+    fut: F,
+    key: Key,
+    h2: Option<
+        LocalBoxFuture<
+            'static,
+            Result<(SendRequest<Bytes>, Connection<Io, Bytes>), h2::Error>,
+        >,
+    >,
+    rx: Option<oneshot::Sender<Result<IoConnection<Io>, ConnectError>>>,
+    inner: Option<Rc<RefCell<Inner<Io>>>>,
+    config: ConnectorConfig,
+}
+
+impl<F, Io> OpenWaitingConnection<F, Io>
+where
+    F: Future<Output = Result<(Io, Protocol), ConnectError>> + 'static,
+    Io: AsyncRead + AsyncWrite + Unpin + 'static,
+{
+    fn spawn(
+        key: Key,
+        rx: oneshot::Sender<Result<IoConnection<Io>, ConnectError>>,
+        inner: Rc<RefCell<Inner<Io>>>,
+        fut: F,
+        config: ConnectorConfig,
+    ) {
+        actix_rt::spawn(OpenWaitingConnection {
+            key,
+            fut,
+            h2: None,
+            rx: Some(rx),
+            inner: Some(inner),
+            config,
+        })
+    }
+}
+
+#[pin_project::pinned_drop]
+impl<F, Io> PinnedDrop for OpenWaitingConnection<F, Io>
+where
+    Io: AsyncRead + AsyncWrite + Unpin + 'static,
+{
+    fn drop(self: Pin<&mut Self>) {
+        if let Some(inner) = self.project().inner.take() {
+            let mut inner = inner.as_ref().borrow_mut();
+            inner.release();
+            inner.check_availability();
+        }
+    }
+}
+
+impl<F, Io> Future for OpenWaitingConnection<F, Io>
+where
+    F: Future<Output = Result<(Io, Protocol), ConnectError>>,
+    Io: AsyncRead + AsyncWrite + Unpin,
+{
+    type Output = ();
+
+    fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
+        let this = self.as_mut().project();
+
+        if let Some(ref mut h2) = this.h2 {
+            return match Pin::new(h2).poll(cx) {
+                Poll::Ready(Ok((snd, connection))) => {
+                    actix_rt::spawn(connection.map(|_| ()));
+                    let rx = this.rx.take().unwrap();
+                    let _ = rx.send(Ok(IoConnection::new(
+                        ConnectionType::H2(snd),
+                        Instant::now(),
+                        Some(Acquired(this.key.clone(), this.inner.take())),
+                    )));
+                    Poll::Ready(())
+                }
+                Poll::Pending => Poll::Pending,
+                Poll::Ready(Err(err)) => {
+                    let _ = this.inner.take();
+                    if let Some(rx) = this.rx.take() {
+                        let _ = rx.send(Err(ConnectError::H2(err)));
+                    }
+                    Poll::Ready(())
+                }
+            };
+        }
+
+        match this.fut.poll(cx) {
+            Poll::Ready(Err(err)) => {
+                let _ = this.inner.take();
+                if let Some(rx) = this.rx.take() {
+                    let _ = rx.send(Err(err));
+                }
+                Poll::Ready(())
+            }
+            Poll::Ready(Ok((io, proto))) => {
+                if proto == Protocol::Http1 {
+                    let rx = this.rx.take().unwrap();
+                    let _ = rx.send(Ok(IoConnection::new(
+                        ConnectionType::H1(io),
+                        Instant::now(),
+                        Some(Acquired(this.key.clone(), this.inner.take())),
+                    )));
+                    Poll::Ready(())
+                } else {
+                    *this.h2 = Some(handshake(io, this.config).boxed_local());
+                    self.poll(cx)
+                }
+            }
+            Poll::Pending => Poll::Pending,
+        }
+    }
+}
+
+pub(crate) struct Acquired<T>(Key, Option<Rc<RefCell<Inner<T>>>>);
+
+impl<T> Acquired<T>
+where
+    T: AsyncRead + AsyncWrite + Unpin + 'static,
+{
+    pub(crate) fn close(&mut self, conn: IoConnection<T>) {
+        if let Some(inner) = self.1.take() {
+            let (io, _) = conn.into_inner();
+            inner.as_ref().borrow_mut().release_close(io);
+        }
+    }
+    pub(crate) fn release(&mut self, conn: IoConnection<T>) {
+        if let Some(inner) = self.1.take() {
+            let (io, created) = conn.into_inner();
+            inner
+                .as_ref()
+                .borrow_mut()
+                .release_conn(&self.0, io, created);
+        }
+    }
+}
+
+impl<T> Drop for Acquired<T> {
+    fn drop(&mut self) {
+        if let Some(inner) = self.1.take() {
+            inner.as_ref().borrow_mut().release();
+        }
+    }
+}

actix-http/src/config.rs

@@ -0,0 +1,315 @@
+use std::cell::Cell;
+use std::fmt::Write;
+use std::rc::Rc;
+use std::time::Duration;
+use std::{fmt, net};
+
+use actix_rt::time::{sleep, sleep_until, Instant, Sleep};
+use bytes::BytesMut;
+use futures_util::{future, FutureExt};
+use time::OffsetDateTime;
+
+// "Sun, 06 Nov 1994 08:49:37 GMT".len()
+const DATE_VALUE_LENGTH: usize = 29;
+
+#[derive(Debug, PartialEq, Clone, Copy)]
+/// Server keep-alive setting
+pub enum KeepAlive {
+    /// Keep alive in seconds
+    Timeout(usize),
+    /// Rely on OS to shutdown tcp connection
+    Os,
+    /// Disabled
+    Disabled,
+}
+
+impl From<usize> for KeepAlive {
+    fn from(keepalive: usize) -> Self {
+        KeepAlive::Timeout(keepalive)
+    }
+}
+
+impl From<Option<usize>> for KeepAlive {
+    fn from(keepalive: Option<usize>) -> Self {
+        if let Some(keepalive) = keepalive {
+            KeepAlive::Timeout(keepalive)
+        } else {
+            KeepAlive::Disabled
+        }
+    }
+}
+
+/// Http service configuration
+pub struct ServiceConfig(Rc<Inner>);
+
+struct Inner {
+    keep_alive: Option<Duration>,
+    client_timeout: u64,
+    client_disconnect: u64,
+    ka_enabled: bool,
+    secure: bool,
+    local_addr: Option<std::net::SocketAddr>,
+    timer: DateService,
+}
+
+impl Clone for ServiceConfig {
+    fn clone(&self) -> Self {
+        ServiceConfig(self.0.clone())
+    }
+}
+
+impl Default for ServiceConfig {
+    fn default() -> Self {
+        Self::new(KeepAlive::Timeout(5), 0, 0, false, None)
+    }
+}
+
+impl ServiceConfig {
+    /// Create instance of `ServiceConfig`
+    pub fn new(
+        keep_alive: KeepAlive,
+        client_timeout: u64,
+        client_disconnect: u64,
+        secure: bool,
+        local_addr: Option<net::SocketAddr>,
+    ) -> ServiceConfig {
+        let (keep_alive, ka_enabled) = match keep_alive {
+            KeepAlive::Timeout(val) => (val as u64, true),
+            KeepAlive::Os => (0, true),
+            KeepAlive::Disabled => (0, false),
+        };
+        let keep_alive = if ka_enabled && keep_alive > 0 {
+            Some(Duration::from_secs(keep_alive))
+        } else {
+            None
+        };
+
+        ServiceConfig(Rc::new(Inner {
+            keep_alive,
+            ka_enabled,
+            client_timeout,
+            client_disconnect,
+            secure,
+            local_addr,
+            timer: DateService::new(),
+        }))
+    }
+
+    #[inline]
+    /// Returns true if connection is secure(https)
+    pub fn secure(&self) -> bool {
+        self.0.secure
+    }
+
+    #[inline]
+    /// Returns the local address that this server is bound to.
+    pub fn local_addr(&self) -> Option<net::SocketAddr> {
+        self.0.local_addr
+    }
+
+    #[inline]
+    /// Keep alive duration if configured.
+    pub fn keep_alive(&self) -> Option<Duration> {
+        self.0.keep_alive
+    }
+
+    #[inline]
+    /// Return state of connection keep-alive functionality
+    pub fn keep_alive_enabled(&self) -> bool {
+        self.0.ka_enabled
+    }
+
+    #[inline]
+    /// Client timeout for first request.
+    pub fn client_timer(&self) -> Option<Sleep> {
+        let delay_time = self.0.client_timeout;
+        if delay_time != 0 {
+            Some(sleep_until(
+                self.0.timer.now() + Duration::from_millis(delay_time),
+            ))
+        } else {
+            None
+        }
+    }
+
+    /// Client timeout for first request.
+    pub fn client_timer_expire(&self) -> Option<Instant> {
+        let delay = self.0.client_timeout;
+        if delay != 0 {
+            Some(self.0.timer.now() + Duration::from_millis(delay))
+        } else {
+            None
+        }
+    }
+
+    /// Client disconnect timer
+    pub fn client_disconnect_timer(&self) -> Option<Instant> {
+        let delay = self.0.client_disconnect;
+        if delay != 0 {
+            Some(self.0.timer.now() + Duration::from_millis(delay))
+        } else {
+            None
+        }
+    }
+
+    #[inline]
+    /// Return keep-alive timer delay is configured.
+    pub fn keep_alive_timer(&self) -> Option<Sleep> {
+        if let Some(ka) = self.0.keep_alive {
+            Some(sleep_until(self.0.timer.now() + ka))
+        } else {
+            None
+        }
+    }
+
+    /// Keep-alive expire time
+    pub fn keep_alive_expire(&self) -> Option<Instant> {
+        if let Some(ka) = self.0.keep_alive {
+            Some(self.0.timer.now() + ka)
+        } else {
+            None
+        }
+    }
+
+    #[inline]
+    pub(crate) fn now(&self) -> Instant {
+        self.0.timer.now()
+    }
+
+    #[doc(hidden)]
+    pub fn set_date(&self, dst: &mut BytesMut) {
+        let mut buf: [u8; 39] = [0; 39];
+        buf[..6].copy_from_slice(b"date: ");
+        self.0
+            .timer
+            .set_date(|date| buf[6..35].copy_from_slice(&date.bytes));
+        buf[35..].copy_from_slice(b"\r\n\r\n");
+        dst.extend_from_slice(&buf);
+    }
+
+    pub(crate) fn set_date_header(&self, dst: &mut BytesMut) {
+        self.0
+            .timer
+            .set_date(|date| dst.extend_from_slice(&date.bytes));
+    }
+}
+
+#[derive(Copy, Clone)]
+struct Date {
+    bytes: [u8; DATE_VALUE_LENGTH],
+    pos: usize,
+}
+
+impl Date {
+    fn new() -> Date {
+        let mut date = Date {
+            bytes: [0; DATE_VALUE_LENGTH],
+            pos: 0,
+        };
+        date.update();
+        date
+    }
+
+    fn update(&mut self) {
+        self.pos = 0;
+        write!(
+            self,
+            "{}",
+            OffsetDateTime::now_utc().format("%a, %d %b %Y %H:%M:%S GMT")
+        )
+        .unwrap();
+    }
+}
+
+impl fmt::Write for Date {
+    fn write_str(&mut self, s: &str) -> fmt::Result {
+        let len = s.len();
+        self.bytes[self.pos..self.pos + len].copy_from_slice(s.as_bytes());
+        self.pos += len;
+        Ok(())
+    }
+}
+
+#[derive(Clone)]
+struct DateService(Rc<DateServiceInner>);
+
+struct DateServiceInner {
+    current: Cell<Option<(Date, Instant)>>,
+}
+
+impl DateServiceInner {
+    fn new() -> Self {
+        DateServiceInner {
+            current: Cell::new(None),
+        }
+    }
+
+    fn reset(&self) {
+        self.current.take();
+    }
+
+    fn update(&self) {
+        let now = Instant::now();
+        let date = Date::new();
+        self.current.set(Some((date, now)));
+    }
+}
+
+impl DateService {
+    fn new() -> Self {
+        DateService(Rc::new(DateServiceInner::new()))
+    }
+
+    fn check_date(&self) {
+        if self.0.current.get().is_none() {
+            self.0.update();
+
+            // periodic date update
+            let s = self.clone();
+            actix_rt::spawn(sleep(Duration::from_millis(500)).then(move |_| {
+                s.0.reset();
+                future::ready(())
+            }));
+        }
+    }
+
+    fn now(&self) -> Instant {
+        self.check_date();
+        self.0.current.get().unwrap().1
+    }
+
+    fn set_date<F: FnMut(&Date)>(&self, mut f: F) {
+        self.check_date();
+        f(&self.0.current.get().unwrap().0);
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    // Test modifying the date from within the closure
+    // passed to `set_date`
+    #[test]
+    fn test_evil_date() {
+        let service = DateService::new();
+        // Make sure that `check_date` doesn't try to spawn a task
+        service.0.update();
+        service.set_date(|_| service.0.reset());
+    }
+
+    #[test]
+    fn test_date_len() {
+        assert_eq!(DATE_VALUE_LENGTH, "Sun, 06 Nov 1994 08:49:37 GMT".len());
+    }
+
+    #[actix_rt::test]
+    async fn test_date() {
+        let settings = ServiceConfig::new(KeepAlive::Os, 0, 0, false, None);
+        let mut buf1 = BytesMut::with_capacity(DATE_VALUE_LENGTH + 10);
+        settings.set_date(&mut buf1);
+        let mut buf2 = BytesMut::with_capacity(DATE_VALUE_LENGTH + 10);
+        settings.set_date(&mut buf2);
+        assert_eq!(buf1, buf2);
+    }
+}

actix-http/src/encoding/decoder.rs

@@ -0,0 +1,222 @@
+use std::future::Future;
+use std::io::{self, Write};
+use std::pin::Pin;
+use std::task::{Context, Poll};
+
+use actix_threadpool::{run, CpuFuture};
+use brotli2::write::BrotliDecoder;
+use bytes::Bytes;
+use flate2::write::{GzDecoder, ZlibDecoder};
+use futures_core::{ready, Stream};
+
+use super::Writer;
+use crate::error::PayloadError;
+use crate::http::header::{ContentEncoding, HeaderMap, CONTENT_ENCODING};
+
+const INPLACE: usize = 2049;
+
+pub struct Decoder<S> {
+    decoder: Option<ContentDecoder>,
+    stream: S,
+    eof: bool,
+    fut: Option<CpuFuture<(Option<Bytes>, ContentDecoder), io::Error>>,
+}
+
+impl<S> Decoder<S>
+where
+    S: Stream<Item = Result<Bytes, PayloadError>>,
+{
+    /// Construct a decoder.
+    #[inline]
+    pub fn new(stream: S, encoding: ContentEncoding) -> Decoder<S> {
+        let decoder = match encoding {
+            ContentEncoding::Br => Some(ContentDecoder::Br(Box::new(
+                BrotliDecoder::new(Writer::new()),
+            ))),
+            ContentEncoding::Deflate => Some(ContentDecoder::Deflate(Box::new(
+                ZlibDecoder::new(Writer::new()),
+            ))),
+            ContentEncoding::Gzip => Some(ContentDecoder::Gzip(Box::new(
+                GzDecoder::new(Writer::new()),
+            ))),
+            _ => None,
+        };
+        Decoder {
+            decoder,
+            stream,
+            fut: None,
+            eof: false,
+        }
+    }
+
+    /// Construct decoder based on headers.
+    #[inline]
+    pub fn from_headers(stream: S, headers: &HeaderMap) -> Decoder<S> {
+        // check content-encoding
+        let encoding = if let Some(enc) = headers.get(&CONTENT_ENCODING) {
+            if let Ok(enc) = enc.to_str() {
+                ContentEncoding::from(enc)
+            } else {
+                ContentEncoding::Identity
+            }
+        } else {
+            ContentEncoding::Identity
+        };
+
+        Self::new(stream, encoding)
+    }
+}
+
+impl<S> Stream for Decoder<S>
+where
+    S: Stream<Item = Result<Bytes, PayloadError>> + Unpin,
+{
+    type Item = Result<Bytes, PayloadError>;
+
+    fn poll_next(
+        mut self: Pin<&mut Self>,
+        cx: &mut Context<'_>,
+    ) -> Poll<Option<Self::Item>> {
+        loop {
+            if let Some(ref mut fut) = self.fut {
+                let (chunk, decoder) = match ready!(Pin::new(fut).poll(cx)) {
+                    Ok(item) => item,
+                    Err(e) => return Poll::Ready(Some(Err(e.into()))),
+                };
+                self.decoder = Some(decoder);
+                self.fut.take();
+                if let Some(chunk) = chunk {
+                    return Poll::Ready(Some(Ok(chunk)));
+                }
+            }
+
+            if self.eof {
+                return Poll::Ready(None);
+            }
+
+            match Pin::new(&mut self.stream).poll_next(cx) {
+                Poll::Ready(Some(Err(err))) => return Poll::Ready(Some(Err(err))),
+                Poll::Ready(Some(Ok(chunk))) => {
+                    if let Some(mut decoder) = self.decoder.take() {
+                        if chunk.len() < INPLACE {
+                            let chunk = decoder.feed_data(chunk)?;
+                            self.decoder = Some(decoder);
+                            if let Some(chunk) = chunk {
+                                return Poll::Ready(Some(Ok(chunk)));
+                            }
+                        } else {
+                            self.fut = Some(run(move || {
+                                let chunk = decoder.feed_data(chunk)?;
+                                Ok((chunk, decoder))
+                            }));
+                        }
+                        continue;
+                    } else {
+                        return Poll::Ready(Some(Ok(chunk)));
+                    }
+                }
+                Poll::Ready(None) => {
+                    self.eof = true;
+                    return if let Some(mut decoder) = self.decoder.take() {
+                        match decoder.feed_eof() {
+                            Ok(Some(res)) => Poll::Ready(Some(Ok(res))),
+                            Ok(None) => Poll::Ready(None),
+                            Err(err) => Poll::Ready(Some(Err(err.into()))),
+                        }
+                    } else {
+                        Poll::Ready(None)
+                    };
+                }
+                Poll::Pending => break,
+            }
+        }
+        Poll::Pending
+    }
+}
+
+enum ContentDecoder {
+    Deflate(Box<ZlibDecoder<Writer>>),
+    Gzip(Box<GzDecoder<Writer>>),
+    Br(Box<BrotliDecoder<Writer>>),
+}
+
+impl ContentDecoder {
+    fn feed_eof(&mut self) -> io::Result<Option<Bytes>> {
+        match self {
+            ContentDecoder::Br(ref mut decoder) => match decoder.flush() {
+                Ok(()) => {
+                    let b = decoder.get_mut().take();
+                    if !b.is_empty() {
+                        Ok(Some(b))
+                    } else {
+                        Ok(None)
+                    }
+                }
+                Err(e) => Err(e),
+            },
+            ContentDecoder::Gzip(ref mut decoder) => match decoder.try_finish() {
+                Ok(_) => {
+                    let b = decoder.get_mut().take();
+                    if !b.is_empty() {
+                        Ok(Some(b))
+                    } else {
+                        Ok(None)
+                    }
+                }
+                Err(e) => Err(e),
+            },
+            ContentDecoder::Deflate(ref mut decoder) => match decoder.try_finish() {
+                Ok(_) => {
+                    let b = decoder.get_mut().take();
+                    if !b.is_empty() {
+                        Ok(Some(b))
+                    } else {
+                        Ok(None)
+                    }
+                }
+                Err(e) => Err(e),
+            },
+        }
+    }
+
+    fn feed_data(&mut self, data: Bytes) -> io::Result<Option<Bytes>> {
+        match self {
+            ContentDecoder::Br(ref mut decoder) => match decoder.write_all(&data) {
+                Ok(_) => {
+                    decoder.flush()?;
+                    let b = decoder.get_mut().take();
+                    if !b.is_empty() {
+                        Ok(Some(b))
+                    } else {
+                        Ok(None)
+                    }
+                }
+                Err(e) => Err(e),
+            },
+            ContentDecoder::Gzip(ref mut decoder) => match decoder.write_all(&data) {
+                Ok(_) => {
+                    decoder.flush()?;
+                    let b = decoder.get_mut().take();
+                    if !b.is_empty() {
+                        Ok(Some(b))
+                    } else {
+                        Ok(None)
+                    }
+                }
+                Err(e) => Err(e),
+            },
+            ContentDecoder::Deflate(ref mut decoder) => match decoder.write_all(&data) {
+                Ok(_) => {
+                    decoder.flush()?;
+                    let b = decoder.get_mut().take();
+                    if !b.is_empty() {
+                        Ok(Some(b))
+                    } else {
+                        Ok(None)
+                    }
+                }
+                Err(e) => Err(e),
+            },
+        }
+    }
+}

actix-http/src/encoding/encoder.rs

@@ -0,0 +1,273 @@
+//! Stream encoder
+use std::future::Future;
+use std::io::{self, Write};
+use std::pin::Pin;
+use std::task::{Context, Poll};
+
+use actix_threadpool::{run, CpuFuture};
+use brotli2::write::BrotliEncoder;
+use bytes::Bytes;
+use flate2::write::{GzEncoder, ZlibEncoder};
+use futures_core::ready;
+use pin_project::pin_project;
+
+use crate::body::{Body, BodySize, MessageBody, ResponseBody};
+use crate::http::header::{ContentEncoding, CONTENT_ENCODING};
+use crate::http::{HeaderValue, StatusCode};
+use crate::{Error, ResponseHead};
+
+use super::Writer;
+
+const INPLACE: usize = 1024;
+
+#[pin_project]
+pub struct Encoder<B> {
+    eof: bool,
+    #[pin]
+    body: EncoderBody<B>,
+    encoder: Option<ContentEncoder>,
+    fut: Option<CpuFuture<ContentEncoder, io::Error>>,
+}
+
+impl<B: MessageBody> Encoder<B> {
+    pub fn response(
+        encoding: ContentEncoding,
+        head: &mut ResponseHead,
+        body: ResponseBody<B>,
+    ) -> ResponseBody<Encoder<B>> {
+        let can_encode = !(head.headers().contains_key(&CONTENT_ENCODING)
+            || head.status == StatusCode::SWITCHING_PROTOCOLS
+            || head.status == StatusCode::NO_CONTENT
+            || encoding == ContentEncoding::Identity
+            || encoding == ContentEncoding::Auto);
+
+        let body = match body {
+            ResponseBody::Other(b) => match b {
+                Body::None => return ResponseBody::Other(Body::None),
+                Body::Empty => return ResponseBody::Other(Body::Empty),
+                Body::Bytes(buf) => {
+                    if can_encode {
+                        EncoderBody::Bytes(buf)
+                    } else {
+                        return ResponseBody::Other(Body::Bytes(buf));
+                    }
+                }
+                Body::Message(stream) => EncoderBody::BoxedStream(stream),
+            },
+            ResponseBody::Body(stream) => EncoderBody::Stream(stream),
+        };
+
+        if can_encode {
+            // Modify response body only if encoder is not None
+            if let Some(enc) = ContentEncoder::encoder(encoding) {
+                update_head(encoding, head);
+                head.no_chunking(false);
+                return ResponseBody::Body(Encoder {
+                    body,
+                    eof: false,
+                    fut: None,
+                    encoder: Some(enc),
+                });
+            }
+        }
+        ResponseBody::Body(Encoder {
+            body,
+            eof: false,
+            fut: None,
+            encoder: None,
+        })
+    }
+}
+
+#[pin_project(project = EncoderBodyProj)]
+enum EncoderBody<B> {
+    Bytes(Bytes),
+    Stream(#[pin] B),
+    BoxedStream(Box<dyn MessageBody + Unpin>),
+}
+
+impl<B: MessageBody> MessageBody for EncoderBody<B> {
+    fn size(&self) -> BodySize {
+        match self {
+            EncoderBody::Bytes(ref b) => b.size(),
+            EncoderBody::Stream(ref b) => b.size(),
+            EncoderBody::BoxedStream(ref b) => b.size(),
+        }
+    }
+
+    fn poll_next(
+        self: Pin<&mut Self>,
+        cx: &mut Context<'_>,
+    ) -> Poll<Option<Result<Bytes, Error>>> {
+        match self.project() {
+            EncoderBodyProj::Bytes(b) => {
+                if b.is_empty() {
+                    Poll::Ready(None)
+                } else {
+                    Poll::Ready(Some(Ok(std::mem::take(b))))
+                }
+            }
+            EncoderBodyProj::Stream(b) => b.poll_next(cx),
+            EncoderBodyProj::BoxedStream(ref mut b) => {
+                Pin::new(b.as_mut()).poll_next(cx)
+            }
+        }
+    }
+}
+
+impl<B: MessageBody> MessageBody for Encoder<B> {
+    fn size(&self) -> BodySize {
+        if self.encoder.is_none() {
+            self.body.size()
+        } else {
+            BodySize::Stream
+        }
+    }
+
+    fn poll_next(
+        self: Pin<&mut Self>,
+        cx: &mut Context<'_>,
+    ) -> Poll<Option<Result<Bytes, Error>>> {
+        let mut this = self.project();
+        loop {
+            if *this.eof {
+                return Poll::Ready(None);
+            }
+
+            if let Some(ref mut fut) = this.fut {
+                let mut encoder = match ready!(Pin::new(fut).poll(cx)) {
+                    Ok(item) => item,
+                    Err(e) => return Poll::Ready(Some(Err(e.into()))),
+                };
+                let chunk = encoder.take();
+                *this.encoder = Some(encoder);
+                this.fut.take();
+                if !chunk.is_empty() {
+                    return Poll::Ready(Some(Ok(chunk)));
+                }
+            }
+
+            let result = this.body.as_mut().poll_next(cx);
+
+            match result {
+                Poll::Ready(Some(Ok(chunk))) => {
+                    if let Some(mut encoder) = this.encoder.take() {
+                        if chunk.len() < INPLACE {
+                            encoder.write(&chunk)?;
+                            let chunk = encoder.take();
+                            *this.encoder = Some(encoder);
+                            if !chunk.is_empty() {
+                                return Poll::Ready(Some(Ok(chunk)));
+                            }
+                        } else {
+                            *this.fut = Some(run(move || {
+                                encoder.write(&chunk)?;
+                                Ok(encoder)
+                            }));
+                        }
+                    } else {
+                        return Poll::Ready(Some(Ok(chunk)));
+                    }
+                }
+                Poll::Ready(None) => {
+                    if let Some(encoder) = this.encoder.take() {
+                        let chunk = encoder.finish()?;
+                        if chunk.is_empty() {
+                            return Poll::Ready(None);
+                        } else {
+                            *this.eof = true;
+                            return Poll::Ready(Some(Ok(chunk)));
+                        }
+                    } else {
+                        return Poll::Ready(None);
+                    }
+                }
+                val => return val,
+            }
+        }
+    }
+}
+
+fn update_head(encoding: ContentEncoding, head: &mut ResponseHead) {
+    head.headers_mut().insert(
+        CONTENT_ENCODING,
+        HeaderValue::from_static(encoding.as_str()),
+    );
+}
+
+enum ContentEncoder {
+    Deflate(ZlibEncoder<Writer>),
+    Gzip(GzEncoder<Writer>),
+    Br(BrotliEncoder<Writer>),
+}
+
+impl ContentEncoder {
+    fn encoder(encoding: ContentEncoding) -> Option<Self> {
+        match encoding {
+            ContentEncoding::Deflate => Some(ContentEncoder::Deflate(ZlibEncoder::new(
+                Writer::new(),
+                flate2::Compression::fast(),
+            ))),
+            ContentEncoding::Gzip => Some(ContentEncoder::Gzip(GzEncoder::new(
+                Writer::new(),
+                flate2::Compression::fast(),
+            ))),
+            ContentEncoding::Br => {
+                Some(ContentEncoder::Br(BrotliEncoder::new(Writer::new(), 3)))
+            }
+            _ => None,
+        }
+    }
+
+    #[inline]
+    pub(crate) fn take(&mut self) -> Bytes {
+        match *self {
+            ContentEncoder::Br(ref mut encoder) => encoder.get_mut().take(),
+            ContentEncoder::Deflate(ref mut encoder) => encoder.get_mut().take(),
+            ContentEncoder::Gzip(ref mut encoder) => encoder.get_mut().take(),
+        }
+    }
+
+    fn finish(self) -> Result<Bytes, io::Error> {
+        match self {
+            ContentEncoder::Br(encoder) => match encoder.finish() {
+                Ok(writer) => Ok(writer.buf.freeze()),
+                Err(err) => Err(err),
+            },
+            ContentEncoder::Gzip(encoder) => match encoder.finish() {
+                Ok(writer) => Ok(writer.buf.freeze()),
+                Err(err) => Err(err),
+            },
+            ContentEncoder::Deflate(encoder) => match encoder.finish() {
+                Ok(writer) => Ok(writer.buf.freeze()),
+                Err(err) => Err(err),
+            },
+        }
+    }
+
+    fn write(&mut self, data: &[u8]) -> Result<(), io::Error> {
+        match *self {
+            ContentEncoder::Br(ref mut encoder) => match encoder.write_all(data) {
+                Ok(_) => Ok(()),
+                Err(err) => {
+                    trace!("Error decoding br encoding: {}", err);
+                    Err(err)
+                }
+            },
+            ContentEncoder::Gzip(ref mut encoder) => match encoder.write_all(data) {
+                Ok(_) => Ok(()),
+                Err(err) => {
+                    trace!("Error decoding gzip encoding: {}", err);
+                    Err(err)
+                }
+            },
+            ContentEncoder::Deflate(ref mut encoder) => match encoder.write_all(data) {
+                Ok(_) => Ok(()),
+                Err(err) => {
+                    trace!("Error decoding deflate encoding: {}", err);
+                    Err(err)
+                }
+            },
+        }
+    }
+}

actix-http/src/encoding/mod.rs

@@ -0,0 +1,37 @@
+//! Content-Encoding support
+use std::io;
+
+use bytes::{Bytes, BytesMut};
+
+mod decoder;
+mod encoder;
+
+pub use self::decoder::Decoder;
+pub use self::encoder::Encoder;
+
+pub(self) struct Writer {
+    buf: BytesMut,
+}
+
+impl Writer {
+    fn new() -> Writer {
+        Writer {
+            buf: BytesMut::with_capacity(8192),
+        }
+    }
+
+    fn take(&mut self) -> Bytes {
+        self.buf.split().freeze()
+    }
+}
+
+impl io::Write for Writer {
+    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
+        self.buf.extend_from_slice(buf);
+        Ok(buf.len())
+    }
+
+    fn flush(&mut self) -> io::Result<()> {
+        Ok(())
+    }
+}

actix-http/src/extensions.rs

@@ -0,0 +1,244 @@
+use std::any::{Any, TypeId};
+use std::{fmt, mem};
+
+use fxhash::FxHashMap;
+
+/// A type map of request extensions.
+#[derive(Default)]
+pub struct Extensions {
+    /// Use FxHasher with a std HashMap with for faster
+    /// lookups on the small `TypeId` (u64 equivalent) keys.
+    map: FxHashMap<TypeId, Box<dyn Any>>,
+}
+
+impl Extensions {
+    /// Create an empty `Extensions`.
+    #[inline]
+    pub fn new() -> Extensions {
+        Extensions {
+            map: FxHashMap::default(),
+        }
+    }
+
+    /// Insert a type into this `Extensions`.
+    ///
+    /// If a extension of this type already existed, it will
+    /// be returned.
+    pub fn insert<T: 'static>(&mut self, val: T) {
+        self.map.insert(TypeId::of::<T>(), Box::new(val));
+    }
+
+    /// Check if container contains entry
+    pub fn contains<T: 'static>(&self) -> bool {
+        self.map.contains_key(&TypeId::of::<T>())
+    }
+
+    /// Get a reference to a type previously inserted on this `Extensions`.
+    pub fn get<T: 'static>(&self) -> Option<&T> {
+        self.map
+            .get(&TypeId::of::<T>())
+            .and_then(|boxed| boxed.downcast_ref())
+    }
+
+    /// Get a mutable reference to a type previously inserted on this `Extensions`.
+    pub fn get_mut<T: 'static>(&mut self) -> Option<&mut T> {
+        self.map
+            .get_mut(&TypeId::of::<T>())
+            .and_then(|boxed| boxed.downcast_mut())
+    }
+
+    /// Remove a type from this `Extensions`.
+    ///
+    /// If a extension of this type existed, it will be returned.
+    pub fn remove<T: 'static>(&mut self) -> Option<T> {
+        self.map
+            .remove(&TypeId::of::<T>())
+            .and_then(|boxed| boxed.downcast().ok().map(|boxed| *boxed))
+    }
+
+    /// Clear the `Extensions` of all inserted extensions.
+    #[inline]
+    pub fn clear(&mut self) {
+        self.map.clear();
+    }
+
+    /// Extends self with the items from another `Extensions`.
+    pub fn extend(&mut self, other: Extensions) {
+        self.map.extend(other.map);
+    }
+
+    /// Sets (or overrides) items from `other` into this map.
+    pub(crate) fn drain_from(&mut self, other: &mut Self) {
+        self.map.extend(mem::take(&mut other.map));
+    }
+}
+
+impl fmt::Debug for Extensions {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        f.debug_struct("Extensions").finish()
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_remove() {
+        let mut map = Extensions::new();
+
+        map.insert::<i8>(123);
+        assert!(map.get::<i8>().is_some());
+
+        map.remove::<i8>();
+        assert!(map.get::<i8>().is_none());
+    }
+
+    #[test]
+    fn test_clear() {
+        let mut map = Extensions::new();
+
+        map.insert::<i8>(8);
+        map.insert::<i16>(16);
+        map.insert::<i32>(32);
+
+        assert!(map.contains::<i8>());
+        assert!(map.contains::<i16>());
+        assert!(map.contains::<i32>());
+
+        map.clear();
+
+        assert!(!map.contains::<i8>());
+        assert!(!map.contains::<i16>());
+        assert!(!map.contains::<i32>());
+
+        map.insert::<i8>(10);
+        assert_eq!(*map.get::<i8>().unwrap(), 10);
+    }
+
+    #[test]
+    fn test_integers() {
+        let mut map = Extensions::new();
+
+        map.insert::<i8>(8);
+        map.insert::<i16>(16);
+        map.insert::<i32>(32);
+        map.insert::<i64>(64);
+        map.insert::<i128>(128);
+        map.insert::<u8>(8);
+        map.insert::<u16>(16);
+        map.insert::<u32>(32);
+        map.insert::<u64>(64);
+        map.insert::<u128>(128);
+        assert!(map.get::<i8>().is_some());
+        assert!(map.get::<i16>().is_some());
+        assert!(map.get::<i32>().is_some());
+        assert!(map.get::<i64>().is_some());
+        assert!(map.get::<i128>().is_some());
+        assert!(map.get::<u8>().is_some());
+        assert!(map.get::<u16>().is_some());
+        assert!(map.get::<u32>().is_some());
+        assert!(map.get::<u64>().is_some());
+        assert!(map.get::<u128>().is_some());
+    }
+
+    #[test]
+    fn test_composition() {
+        struct Magi<T>(pub T);
+
+        struct Madoka {
+            pub god: bool,
+        }
+
+        struct Homura {
+            pub attempts: usize,
+        }
+
+        struct Mami {
+            pub guns: usize,
+        }
+
+        let mut map = Extensions::new();
+
+        map.insert(Magi(Madoka { god: false }));
+        map.insert(Magi(Homura { attempts: 0 }));
+        map.insert(Magi(Mami { guns: 999 }));
+
+        assert!(!map.get::<Magi<Madoka>>().unwrap().0.god);
+        assert_eq!(0, map.get::<Magi<Homura>>().unwrap().0.attempts);
+        assert_eq!(999, map.get::<Magi<Mami>>().unwrap().0.guns);
+    }
+
+    #[test]
+    fn test_extensions() {
+        #[derive(Debug, PartialEq)]
+        struct MyType(i32);
+
+        let mut extensions = Extensions::new();
+
+        extensions.insert(5i32);
+        extensions.insert(MyType(10));
+
+        assert_eq!(extensions.get(), Some(&5i32));
+        assert_eq!(extensions.get_mut(), Some(&mut 5i32));
+
+        assert_eq!(extensions.remove::<i32>(), Some(5i32));
+        assert!(extensions.get::<i32>().is_none());
+
+        assert_eq!(extensions.get::<bool>(), None);
+        assert_eq!(extensions.get(), Some(&MyType(10)));
+    }
+
+    #[test]
+    fn test_extend() {
+        #[derive(Debug, PartialEq)]
+        struct MyType(i32);
+
+        let mut extensions = Extensions::new();
+
+        extensions.insert(5i32);
+        extensions.insert(MyType(10));
+
+        let mut other = Extensions::new();
+
+        other.insert(15i32);
+        other.insert(20u8);
+
+        extensions.extend(other);
+
+        assert_eq!(extensions.get(), Some(&15i32));
+        assert_eq!(extensions.get_mut(), Some(&mut 15i32));
+
+        assert_eq!(extensions.remove::<i32>(), Some(15i32));
+        assert!(extensions.get::<i32>().is_none());
+
+        assert_eq!(extensions.get::<bool>(), None);
+        assert_eq!(extensions.get(), Some(&MyType(10)));
+
+        assert_eq!(extensions.get(), Some(&20u8));
+        assert_eq!(extensions.get_mut(), Some(&mut 20u8));
+    }
+
+    #[test]
+    fn test_drain_from() {
+        let mut ext = Extensions::new();
+        ext.insert(2isize);
+
+        let mut more_ext = Extensions::new();
+
+        more_ext.insert(5isize);
+        more_ext.insert(5usize);
+
+        assert_eq!(ext.get::<isize>(), Some(&2isize));
+        assert_eq!(ext.get::<usize>(), None);
+        assert_eq!(more_ext.get::<isize>(), Some(&5isize));
+        assert_eq!(more_ext.get::<usize>(), Some(&5usize));
+
+        ext.drain_from(&mut more_ext);
+
+        assert_eq!(ext.get::<isize>(), Some(&5isize));
+        assert_eq!(ext.get::<usize>(), Some(&5usize));
+        assert_eq!(more_ext.get::<isize>(), None);
+        assert_eq!(more_ext.get::<usize>(), None);
+    }
+}

actix-http/src/h1/client.rs

@@ -0,0 +1,237 @@
+use std::io;
+
+use actix_codec::{Decoder, Encoder};
+use bitflags::bitflags;
+use bytes::{Bytes, BytesMut};
+use http::{Method, Version};
+
+use super::decoder::{PayloadDecoder, PayloadItem, PayloadType};
+use super::{decoder, encoder, reserve_readbuf};
+use super::{Message, MessageType};
+use crate::body::BodySize;
+use crate::config::ServiceConfig;
+use crate::error::{ParseError, PayloadError};
+use crate::message::{ConnectionType, RequestHeadType, ResponseHead};
+
+bitflags! {
+    struct Flags: u8 {
+        const HEAD              = 0b0000_0001;
+        const KEEPALIVE_ENABLED = 0b0000_1000;
+        const STREAM            = 0b0001_0000;
+    }
+}
+
+/// HTTP/1 Codec
+pub struct ClientCodec {
+    inner: ClientCodecInner,
+}
+
+/// HTTP/1 Payload Codec
+pub struct ClientPayloadCodec {
+    inner: ClientCodecInner,
+}
+
+struct ClientCodecInner {
+    config: ServiceConfig,
+    decoder: decoder::MessageDecoder<ResponseHead>,
+    payload: Option<PayloadDecoder>,
+    version: Version,
+    ctype: ConnectionType,
+
+    // encoder part
+    flags: Flags,
+    encoder: encoder::MessageEncoder<RequestHeadType>,
+}
+
+impl Default for ClientCodec {
+    fn default() -> Self {
+        ClientCodec::new(ServiceConfig::default())
+    }
+}
+
+impl ClientCodec {
+    /// Create HTTP/1 codec.
+    ///
+    /// `keepalive_enabled` how response `connection` header get generated.
+    pub fn new(config: ServiceConfig) -> Self {
+        let flags = if config.keep_alive_enabled() {
+            Flags::KEEPALIVE_ENABLED
+        } else {
+            Flags::empty()
+        };
+        ClientCodec {
+            inner: ClientCodecInner {
+                config,
+                decoder: decoder::MessageDecoder::default(),
+                payload: None,
+                version: Version::HTTP_11,
+                ctype: ConnectionType::Close,
+
+                flags,
+                encoder: encoder::MessageEncoder::default(),
+            },
+        }
+    }
+
+    /// Check if request is upgrade
+    pub fn upgrade(&self) -> bool {
+        self.inner.ctype == ConnectionType::Upgrade
+    }
+
+    /// Check if last response is keep-alive
+    pub fn keepalive(&self) -> bool {
+        self.inner.ctype == ConnectionType::KeepAlive
+    }
+
+    /// Check last request's message type
+    pub fn message_type(&self) -> MessageType {
+        if self.inner.flags.contains(Flags::STREAM) {
+            MessageType::Stream
+        } else if self.inner.payload.is_none() {
+            MessageType::None
+        } else {
+            MessageType::Payload
+        }
+    }
+
+    /// Convert message codec to a payload codec
+    pub fn into_payload_codec(self) -> ClientPayloadCodec {
+        ClientPayloadCodec { inner: self.inner }
+    }
+}
+
+impl ClientPayloadCodec {
+    /// Check if last response is keep-alive
+    pub fn keepalive(&self) -> bool {
+        self.inner.ctype == ConnectionType::KeepAlive
+    }
+
+    /// Transform payload codec to a message codec
+    pub fn into_message_codec(self) -> ClientCodec {
+        ClientCodec { inner: self.inner }
+    }
+}
+
+impl Decoder for ClientCodec {
+    type Item = ResponseHead;
+    type Error = ParseError;
+
+    fn decode(&mut self, src: &mut BytesMut) -> Result<Option<Self::Item>, Self::Error> {
+        debug_assert!(!self.inner.payload.is_some(), "Payload decoder is set");
+
+        if let Some((req, payload)) = self.inner.decoder.decode(src)? {
+            if let Some(ctype) = req.ctype() {
+                // do not use peer's keep-alive
+                self.inner.ctype = if ctype == ConnectionType::KeepAlive {
+                    self.inner.ctype
+                } else {
+                    ctype
+                };
+            }
+
+            if !self.inner.flags.contains(Flags::HEAD) {
+                match payload {
+                    PayloadType::None => self.inner.payload = None,
+                    PayloadType::Payload(pl) => self.inner.payload = Some(pl),
+                    PayloadType::Stream(pl) => {
+                        self.inner.payload = Some(pl);
+                        self.inner.flags.insert(Flags::STREAM);
+                    }
+                }
+            } else {
+                self.inner.payload = None;
+            }
+            reserve_readbuf(src);
+            Ok(Some(req))
+        } else {
+            Ok(None)
+        }
+    }
+}
+
+impl Decoder for ClientPayloadCodec {
+    type Item = Option<Bytes>;
+    type Error = PayloadError;
+
+    fn decode(&mut self, src: &mut BytesMut) -> Result<Option<Self::Item>, Self::Error> {
+        debug_assert!(
+            self.inner.payload.is_some(),
+            "Payload decoder is not specified"
+        );
+
+        Ok(match self.inner.payload.as_mut().unwrap().decode(src)? {
+            Some(PayloadItem::Chunk(chunk)) => {
+                reserve_readbuf(src);
+                Some(Some(chunk))
+            }
+            Some(PayloadItem::Eof) => {
+                self.inner.payload.take();
+                Some(None)
+            }
+            None => None,
+        })
+    }
+}
+
+impl Encoder<Message<(RequestHeadType, BodySize)>> for ClientCodec {
+    type Error = io::Error;
+
+    fn encode(
+        &mut self,
+        item: Message<(RequestHeadType, BodySize)>,
+        dst: &mut BytesMut,
+    ) -> Result<(), Self::Error> {
+        match item {
+            Message::Item((mut head, length)) => {
+                let inner = &mut self.inner;
+                inner.version = head.as_ref().version;
+                inner
+                    .flags
+                    .set(Flags::HEAD, head.as_ref().method == Method::HEAD);
+
+                // connection status
+                inner.ctype = match head.as_ref().connection_type() {
+                    ConnectionType::KeepAlive => {
+                        if inner.flags.contains(Flags::KEEPALIVE_ENABLED) {
+                            ConnectionType::KeepAlive
+                        } else {
+                            ConnectionType::Close
+                        }
+                    }
+                    ConnectionType::Upgrade => ConnectionType::Upgrade,
+                    ConnectionType::Close => ConnectionType::Close,
+                };
+
+                inner.encoder.encode(
+                    dst,
+                    &mut head,
+                    false,
+                    false,
+                    inner.version,
+                    length,
+                    inner.ctype,
+                    &inner.config,
+                )?;
+            }
+            Message::Chunk(Some(bytes)) => {
+                self.inner.encoder.encode_chunk(bytes.as_ref(), dst)?;
+            }
+            Message::Chunk(None) => {
+                self.inner.encoder.encode_eof(dst)?;
+            }
+        }
+        Ok(())
+    }
+}
+
+pub struct Writer<'a>(pub &'a mut BytesMut);
+
+impl<'a> io::Write for Writer<'a> {
+    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
+        self.0.extend_from_slice(buf);
+        Ok(buf.len())
+    }
+    fn flush(&mut self) -> io::Result<()> {
+        Ok(())
+    }
+}

actix-http/src/h1/codec.rs

@@ -0,0 +1,240 @@
+use std::{fmt, io};
+
+use actix_codec::{Decoder, Encoder};
+use bitflags::bitflags;
+use bytes::BytesMut;
+use http::{Method, Version};
+
+use super::decoder::{PayloadDecoder, PayloadItem, PayloadType};
+use super::{decoder, encoder};
+use super::{Message, MessageType};
+use crate::body::BodySize;
+use crate::config::ServiceConfig;
+use crate::error::ParseError;
+use crate::message::ConnectionType;
+use crate::request::Request;
+use crate::response::Response;
+
+bitflags! {
+    struct Flags: u8 {
+        const HEAD              = 0b0000_0001;
+        const KEEPALIVE_ENABLED = 0b0000_0010;
+        const STREAM            = 0b0000_0100;
+    }
+}
+
+/// HTTP/1 Codec
+pub struct Codec {
+    config: ServiceConfig,
+    decoder: decoder::MessageDecoder<Request>,
+    payload: Option<PayloadDecoder>,
+    version: Version,
+    ctype: ConnectionType,
+
+    // encoder part
+    flags: Flags,
+    encoder: encoder::MessageEncoder<Response<()>>,
+}
+
+impl Default for Codec {
+    fn default() -> Self {
+        Codec::new(ServiceConfig::default())
+    }
+}
+
+impl fmt::Debug for Codec {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(f, "h1::Codec({:?})", self.flags)
+    }
+}
+
+impl Codec {
+    /// Create HTTP/1 codec.
+    ///
+    /// `keepalive_enabled` how response `connection` header get generated.
+    pub fn new(config: ServiceConfig) -> Self {
+        let flags = if config.keep_alive_enabled() {
+            Flags::KEEPALIVE_ENABLED
+        } else {
+            Flags::empty()
+        };
+
+        Codec {
+            config,
+            flags,
+            decoder: decoder::MessageDecoder::default(),
+            payload: None,
+            version: Version::HTTP_11,
+            ctype: ConnectionType::Close,
+            encoder: encoder::MessageEncoder::default(),
+        }
+    }
+
+    /// Check if request is upgrade.
+    #[inline]
+    pub fn upgrade(&self) -> bool {
+        self.ctype == ConnectionType::Upgrade
+    }
+
+    /// Check if last response is keep-alive.
+    #[inline]
+    pub fn keepalive(&self) -> bool {
+        self.ctype == ConnectionType::KeepAlive
+    }
+
+    /// Check if keep-alive enabled on server level.
+    #[inline]
+    pub fn keepalive_enabled(&self) -> bool {
+        self.flags.contains(Flags::KEEPALIVE_ENABLED)
+    }
+
+    /// Check last request's message type.
+    #[inline]
+    pub fn message_type(&self) -> MessageType {
+        if self.flags.contains(Flags::STREAM) {
+            MessageType::Stream
+        } else if self.payload.is_none() {
+            MessageType::None
+        } else {
+            MessageType::Payload
+        }
+    }
+
+    #[inline]
+    pub fn config(&self) -> &ServiceConfig {
+        &self.config
+    }
+}
+
+impl Decoder for Codec {
+    type Item = Message<Request>;
+    type Error = ParseError;
+
+    fn decode(&mut self, src: &mut BytesMut) -> Result<Option<Self::Item>, Self::Error> {
+        if let Some(ref mut payload) = self.payload {
+            Ok(match payload.decode(src)? {
+                Some(PayloadItem::Chunk(chunk)) => Some(Message::Chunk(Some(chunk))),
+                Some(PayloadItem::Eof) => {
+                    self.payload.take();
+                    Some(Message::Chunk(None))
+                }
+                None => None,
+            })
+        } else if let Some((req, payload)) = self.decoder.decode(src)? {
+            let head = req.head();
+            self.flags.set(Flags::HEAD, head.method == Method::HEAD);
+            self.version = head.version;
+            self.ctype = head.connection_type();
+            if self.ctype == ConnectionType::KeepAlive
+                && !self.flags.contains(Flags::KEEPALIVE_ENABLED)
+            {
+                self.ctype = ConnectionType::Close
+            }
+            match payload {
+                PayloadType::None => self.payload = None,
+                PayloadType::Payload(pl) => self.payload = Some(pl),
+                PayloadType::Stream(pl) => {
+                    self.payload = Some(pl);
+                    self.flags.insert(Flags::STREAM);
+                }
+            }
+            Ok(Some(Message::Item(req)))
+        } else {
+            Ok(None)
+        }
+    }
+}
+
+impl Encoder<Message<(Response<()>, BodySize)>> for Codec {
+    type Error = io::Error;
+
+    fn encode(
+        &mut self,
+        item: Message<(Response<()>, BodySize)>,
+        dst: &mut BytesMut,
+    ) -> Result<(), Self::Error> {
+        match item {
+            Message::Item((mut res, length)) => {
+                // set response version
+                res.head_mut().version = self.version;
+
+                // connection status
+                self.ctype = if let Some(ct) = res.head().ctype() {
+                    if ct == ConnectionType::KeepAlive {
+                        self.ctype
+                    } else {
+                        ct
+                    }
+                } else {
+                    self.ctype
+                };
+
+                // encode message
+                self.encoder.encode(
+                    dst,
+                    &mut res,
+                    self.flags.contains(Flags::HEAD),
+                    self.flags.contains(Flags::STREAM),
+                    self.version,
+                    length,
+                    self.ctype,
+                    &self.config,
+                )?;
+                // self.headers_size = (dst.len() - len) as u32;
+            }
+            Message::Chunk(Some(bytes)) => {
+                self.encoder.encode_chunk(bytes.as_ref(), dst)?;
+            }
+            Message::Chunk(None) => {
+                self.encoder.encode_eof(dst)?;
+            }
+        }
+        Ok(())
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use bytes::BytesMut;
+    use http::Method;
+
+    use super::*;
+    use crate::httpmessage::HttpMessage;
+
+    #[test]
+    fn test_http_request_chunked_payload_and_next_message() {
+        let mut codec = Codec::default();
+
+        let mut buf = BytesMut::from(
+            "GET /test HTTP/1.1\r\n\
+             transfer-encoding: chunked\r\n\r\n",
+        );
+        let item = codec.decode(&mut buf).unwrap().unwrap();
+        let req = item.message();
+
+        assert_eq!(req.method(), Method::GET);
+        assert!(req.chunked().unwrap());
+
+        buf.extend(
+            b"4\r\ndata\r\n4\r\nline\r\n0\r\n\r\n\
+               POST /test2 HTTP/1.1\r\n\
+               transfer-encoding: chunked\r\n\r\n"
+                .iter(),
+        );
+
+        let msg = codec.decode(&mut buf).unwrap().unwrap();
+        assert_eq!(msg.chunk().as_ref(), b"data");
+
+        let msg = codec.decode(&mut buf).unwrap().unwrap();
+        assert_eq!(msg.chunk().as_ref(), b"line");
+
+        let msg = codec.decode(&mut buf).unwrap().unwrap();
+        assert!(msg.eof());
+
+        // decode next message
+        let item = codec.decode(&mut buf).unwrap().unwrap();
+        let req = item.message();
+        assert_eq!(*req.method(), Method::POST);
+        assert!(req.chunked().unwrap());
+    }
+}

actix-http/src/h1/encoder.rs

@@ -0,0 +1,707 @@
+use std::io::Write;
+use std::marker::PhantomData;
+use std::ptr::copy_nonoverlapping;
+use std::slice::from_raw_parts_mut;
+use std::{cmp, io};
+
+use bytes::{BufMut, BytesMut};
+
+use crate::body::BodySize;
+use crate::config::ServiceConfig;
+use crate::header::map;
+use crate::helpers;
+use crate::http::header::{CONNECTION, CONTENT_LENGTH, DATE, TRANSFER_ENCODING};
+use crate::http::{HeaderMap, StatusCode, Version};
+use crate::message::{ConnectionType, RequestHeadType};
+use crate::response::Response;
+
+const AVERAGE_HEADER_SIZE: usize = 30;
+
+#[derive(Debug)]
+pub(crate) struct MessageEncoder<T: MessageType> {
+    pub length: BodySize,
+    pub te: TransferEncoding,
+    _phantom: PhantomData<T>,
+}
+
+impl<T: MessageType> Default for MessageEncoder<T> {
+    fn default() -> Self {
+        MessageEncoder {
+            length: BodySize::None,
+            te: TransferEncoding::empty(),
+            _phantom: PhantomData,
+        }
+    }
+}
+
+pub(crate) trait MessageType: Sized {
+    fn status(&self) -> Option<StatusCode>;
+
+    fn headers(&self) -> &HeaderMap;
+
+    fn extra_headers(&self) -> Option<&HeaderMap>;
+
+    fn camel_case(&self) -> bool {
+        false
+    }
+
+    fn chunked(&self) -> bool;
+
+    fn encode_status(&mut self, dst: &mut BytesMut) -> io::Result<()>;
+
+    fn encode_headers(
+        &mut self,
+        dst: &mut BytesMut,
+        version: Version,
+        mut length: BodySize,
+        ctype: ConnectionType,
+        config: &ServiceConfig,
+    ) -> io::Result<()> {
+        let chunked = self.chunked();
+        let mut skip_len = length != BodySize::Stream;
+        let camel_case = self.camel_case();
+
+        // Content length
+        if let Some(status) = self.status() {
+            match status {
+                StatusCode::CONTINUE
+                | StatusCode::SWITCHING_PROTOCOLS
+                | StatusCode::PROCESSING
+                | StatusCode::NO_CONTENT => {
+                    // skip content-length and transfer-encoding headers
+                    // See https://tools.ietf.org/html/rfc7230#section-3.3.1
+                    // and https://tools.ietf.org/html/rfc7230#section-3.3.2
+                    skip_len = true;
+                    length = BodySize::None
+                }
+                _ => {}
+            }
+        }
+        match length {
+            BodySize::Stream => {
+                if chunked {
+                    if camel_case {
+                        dst.put_slice(b"\r\nTransfer-Encoding: chunked\r\n")
+                    } else {
+                        dst.put_slice(b"\r\ntransfer-encoding: chunked\r\n")
+                    }
+                } else {
+                    skip_len = false;
+                    dst.put_slice(b"\r\n");
+                }
+            }
+            BodySize::Empty => {
+                if camel_case {
+                    dst.put_slice(b"\r\nContent-Length: 0\r\n");
+                } else {
+                    dst.put_slice(b"\r\ncontent-length: 0\r\n");
+                }
+            }
+            BodySize::Sized(len) => helpers::write_content_length(len, dst),
+            BodySize::None => dst.put_slice(b"\r\n"),
+        }
+
+        // Connection
+        match ctype {
+            ConnectionType::Upgrade => dst.put_slice(b"connection: upgrade\r\n"),
+            ConnectionType::KeepAlive if version < Version::HTTP_11 => {
+                if camel_case {
+                    dst.put_slice(b"Connection: keep-alive\r\n")
+                } else {
+                    dst.put_slice(b"connection: keep-alive\r\n")
+                }
+            }
+            ConnectionType::Close if version >= Version::HTTP_11 => {
+                if camel_case {
+                    dst.put_slice(b"Connection: close\r\n")
+                } else {
+                    dst.put_slice(b"connection: close\r\n")
+                }
+            }
+            _ => {}
+        }
+
+        // merging headers from head and extra headers. HeaderMap::new() does not allocate.
+        let empty_headers = HeaderMap::new();
+        let extra_headers = self.extra_headers().unwrap_or(&empty_headers);
+        let headers = self
+            .headers()
+            .inner
+            .iter()
+            .filter(|(name, _)| !extra_headers.contains_key(*name))
+            .chain(extra_headers.inner.iter());
+
+        // write headers
+
+        let mut has_date = false;
+
+        let mut buf = dst.chunk_mut().as_mut_ptr() as *mut u8;
+        let mut remaining = dst.capacity() - dst.len();
+
+        // tracks bytes written since last buffer resize
+        // since buf is a raw pointer to a bytes container storage but is written to without the
+        // container's knowledge, this is used to sync the containers cursor after data is written
+        let mut pos = 0;
+
+        for (key, value) in headers {
+            match *key {
+                CONNECTION => continue,
+                TRANSFER_ENCODING | CONTENT_LENGTH if skip_len => continue,
+                DATE => has_date = true,
+                _ => {}
+            }
+
+            let k = key.as_str().as_bytes();
+            let k_len = k.len();
+
+            match value {
+                map::Value::One(ref val) => {
+                    let v = val.as_ref();
+                    let v_len = v.len();
+
+                    // key length + value length + colon + space + \r\n
+                    let len = k_len + v_len + 4;
+
+                    if len > remaining {
+                        // not enough room in buffer for this header; reserve more space
+
+                        // SAFETY: all the bytes written up to position "pos" are initialized
+                        // the written byte count and pointer advancement are kept in sync
+                        unsafe {
+                            dst.advance_mut(pos);
+                        }
+
+                        pos = 0;
+                        dst.reserve(len * 2);
+                        remaining = dst.capacity() - dst.len();
+
+                        // re-assign buf raw pointer since it's possible that the buffer was
+                        // reallocated and/or resized
+                        buf = dst.chunk_mut().as_mut_ptr() as *mut u8;
+                    }
+
+                    // SAFETY: on each write, it is enough to ensure that the advancement of the
+                    // cursor matches the number of bytes written
+                    unsafe {
+                        // use upper Camel-Case
+                        if camel_case {
+                            write_camel_case(k, from_raw_parts_mut(buf, k_len))
+                        } else {
+                            write_data(k, buf, k_len)
+                        }
+
+                        buf = buf.add(k_len);
+
+                        write_data(b": ", buf, 2);
+                        buf = buf.add(2);
+
+                        write_data(v, buf, v_len);
+                        buf = buf.add(v_len);
+
+                        write_data(b"\r\n", buf, 2);
+                        buf = buf.add(2);
+                    }
+
+                    pos += len;
+                    remaining -= len;
+                }
+
+                map::Value::Multi(ref vec) => {
+                    for val in vec {
+                        let v = val.as_ref();
+                        let v_len = v.len();
+                        let len = k_len + v_len + 4;
+
+                        if len > remaining {
+                            // SAFETY: all the bytes written up to position "pos" are initialized
+                            // the written byte count and pointer advancement are kept in sync
+                            unsafe {
+                                dst.advance_mut(pos);
+                            }
+                            pos = 0;
+                            dst.reserve(len * 2);
+                            remaining = dst.capacity() - dst.len();
+
+                            // re-assign buf raw pointer since it's possible that the buffer was
+                            // reallocated and/or resized
+                            buf = dst.chunk_mut().as_mut_ptr() as *mut u8;
+                        }
+
+                        // SAFETY: on each write, it is enough to ensure that the advancement of
+                        // the cursor matches the number of bytes written
+                        unsafe {
+                            if camel_case {
+                                write_camel_case(k, from_raw_parts_mut(buf, k_len));
+                            } else {
+                                write_data(k, buf, k_len);
+                            }
+
+                            buf = buf.add(k_len);
+
+                            write_data(b": ", buf, 2);
+                            buf = buf.add(2);
+
+                            write_data(v, buf, v_len);
+                            buf = buf.add(v_len);
+
+                            write_data(b"\r\n", buf, 2);
+                            buf = buf.add(2);
+                        };
+
+                        pos += len;
+                        remaining -= len;
+                    }
+                }
+            }
+        }
+
+        // final cursor synchronization with the bytes container
+        //
+        // SAFETY: all the bytes written up to position "pos" are initialized
+        // the written byte count and pointer advancement are kept in sync
+        unsafe {
+            dst.advance_mut(pos);
+        }
+
+        // optimized date header, set_date writes \r\n
+        if !has_date {
+            config.set_date(dst);
+        } else {
+            // msg eof
+            dst.extend_from_slice(b"\r\n");
+        }
+
+        Ok(())
+    }
+}
+
+impl MessageType for Response<()> {
+    fn status(&self) -> Option<StatusCode> {
+        Some(self.head().status)
+    }
+
+    fn chunked(&self) -> bool {
+        self.head().chunked()
+    }
+
+    fn headers(&self) -> &HeaderMap {
+        &self.head().headers
+    }
+
+    fn extra_headers(&self) -> Option<&HeaderMap> {
+        None
+    }
+
+    fn encode_status(&mut self, dst: &mut BytesMut) -> io::Result<()> {
+        let head = self.head();
+        let reason = head.reason().as_bytes();
+        dst.reserve(256 + head.headers.len() * AVERAGE_HEADER_SIZE + reason.len());
+
+        // status line
+        helpers::write_status_line(head.version, head.status.as_u16(), dst);
+        dst.put_slice(reason);
+        Ok(())
+    }
+}
+
+impl MessageType for RequestHeadType {
+    fn status(&self) -> Option<StatusCode> {
+        None
+    }
+
+    fn chunked(&self) -> bool {
+        self.as_ref().chunked()
+    }
+
+    fn camel_case(&self) -> bool {
+        self.as_ref().camel_case_headers()
+    }
+
+    fn headers(&self) -> &HeaderMap {
+        self.as_ref().headers()
+    }
+
+    fn extra_headers(&self) -> Option<&HeaderMap> {
+        self.extra_headers()
+    }
+
+    fn encode_status(&mut self, dst: &mut BytesMut) -> io::Result<()> {
+        let head = self.as_ref();
+        dst.reserve(256 + head.headers.len() * AVERAGE_HEADER_SIZE);
+        write!(
+            Writer(dst),
+            "{} {} {}",
+            head.method,
+            head.uri.path_and_query().map(|u| u.as_str()).unwrap_or("/"),
+            match head.version {
+                Version::HTTP_09 => "HTTP/0.9",
+                Version::HTTP_10 => "HTTP/1.0",
+                Version::HTTP_11 => "HTTP/1.1",
+                Version::HTTP_2 => "HTTP/2.0",
+                Version::HTTP_3 => "HTTP/3.0",
+                _ =>
+                    return Err(io::Error::new(
+                        io::ErrorKind::Other,
+                        "unsupported version"
+                    )),
+            }
+        )
+        .map_err(|e| io::Error::new(io::ErrorKind::Other, e))
+    }
+}
+
+impl<T: MessageType> MessageEncoder<T> {
+    /// Encode message
+    pub fn encode_chunk(&mut self, msg: &[u8], buf: &mut BytesMut) -> io::Result<bool> {
+        self.te.encode(msg, buf)
+    }
+
+    /// Encode eof
+    pub fn encode_eof(&mut self, buf: &mut BytesMut) -> io::Result<()> {
+        self.te.encode_eof(buf)
+    }
+
+    pub fn encode(
+        &mut self,
+        dst: &mut BytesMut,
+        message: &mut T,
+        head: bool,
+        stream: bool,
+        version: Version,
+        length: BodySize,
+        ctype: ConnectionType,
+        config: &ServiceConfig,
+    ) -> io::Result<()> {
+        // transfer encoding
+        if !head {
+            self.te = match length {
+                BodySize::Empty => TransferEncoding::empty(),
+                BodySize::Sized(len) => TransferEncoding::length(len),
+                BodySize::Stream => {
+                    if message.chunked() && !stream {
+                        TransferEncoding::chunked()
+                    } else {
+                        TransferEncoding::eof()
+                    }
+                }
+                BodySize::None => TransferEncoding::empty(),
+            };
+        } else {
+            self.te = TransferEncoding::empty();
+        }
+
+        message.encode_status(dst)?;
+        message.encode_headers(dst, version, length, ctype, config)
+    }
+}
+
+/// Encoders to handle different Transfer-Encodings.
+#[derive(Debug)]
+pub(crate) struct TransferEncoding {
+    kind: TransferEncodingKind,
+}
+
+#[derive(Debug, PartialEq, Clone)]
+enum TransferEncodingKind {
+    /// An Encoder for when Transfer-Encoding includes `chunked`.
+    Chunked(bool),
+    /// An Encoder for when Content-Length is set.
+    ///
+    /// Enforces that the body is not longer than the Content-Length header.
+    Length(u64),
+    /// An Encoder for when Content-Length is not known.
+    ///
+    /// Application decides when to stop writing.
+    Eof,
+}
+
+impl TransferEncoding {
+    #[inline]
+    pub fn empty() -> TransferEncoding {
+        TransferEncoding {
+            kind: TransferEncodingKind::Length(0),
+        }
+    }
+
+    #[inline]
+    pub fn eof() -> TransferEncoding {
+        TransferEncoding {
+            kind: TransferEncodingKind::Eof,
+        }
+    }
+
+    #[inline]
+    pub fn chunked() -> TransferEncoding {
+        TransferEncoding {
+            kind: TransferEncodingKind::Chunked(false),
+        }
+    }
+
+    #[inline]
+    pub fn length(len: u64) -> TransferEncoding {
+        TransferEncoding {
+            kind: TransferEncodingKind::Length(len),
+        }
+    }
+
+    /// Encode message. Return `EOF` state of encoder
+    #[inline]
+    pub fn encode(&mut self, msg: &[u8], buf: &mut BytesMut) -> io::Result<bool> {
+        match self.kind {
+            TransferEncodingKind::Eof => {
+                let eof = msg.is_empty();
+                buf.extend_from_slice(msg);
+                Ok(eof)
+            }
+            TransferEncodingKind::Chunked(ref mut eof) => {
+                if *eof {
+                    return Ok(true);
+                }
+
+                if msg.is_empty() {
+                    *eof = true;
+                    buf.extend_from_slice(b"0\r\n\r\n");
+                } else {
+                    writeln!(Writer(buf), "{:X}\r", msg.len())
+                        .map_err(|e| io::Error::new(io::ErrorKind::Other, e))?;
+
+                    buf.reserve(msg.len() + 2);
+                    buf.extend_from_slice(msg);
+                    buf.extend_from_slice(b"\r\n");
+                }
+                Ok(*eof)
+            }
+            TransferEncodingKind::Length(ref mut remaining) => {
+                if *remaining > 0 {
+                    if msg.is_empty() {
+                        return Ok(*remaining == 0);
+                    }
+                    let len = cmp::min(*remaining, msg.len() as u64);
+
+                    buf.extend_from_slice(&msg[..len as usize]);
+
+                    *remaining -= len as u64;
+                    Ok(*remaining == 0)
+                } else {
+                    Ok(true)
+                }
+            }
+        }
+    }
+
+    /// Encode eof. Return `EOF` state of encoder
+    #[inline]
+    pub fn encode_eof(&mut self, buf: &mut BytesMut) -> io::Result<()> {
+        match self.kind {
+            TransferEncodingKind::Eof => Ok(()),
+            TransferEncodingKind::Length(rem) => {
+                if rem != 0 {
+                    Err(io::Error::new(io::ErrorKind::UnexpectedEof, ""))
+                } else {
+                    Ok(())
+                }
+            }
+            TransferEncodingKind::Chunked(ref mut eof) => {
+                if !*eof {
+                    *eof = true;
+                    buf.extend_from_slice(b"0\r\n\r\n");
+                }
+                Ok(())
+            }
+        }
+    }
+}
+
+struct Writer<'a>(pub &'a mut BytesMut);
+
+impl<'a> io::Write for Writer<'a> {
+    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
+        self.0.extend_from_slice(buf);
+        Ok(buf.len())
+    }
+    fn flush(&mut self) -> io::Result<()> {
+        Ok(())
+    }
+}
+
+/// # Safety
+/// Callers must ensure that the given length matches given value length.
+unsafe fn write_data(value: &[u8], buf: *mut u8, len: usize) {
+    debug_assert_eq!(value.len(), len);
+    copy_nonoverlapping(value.as_ptr(), buf, len);
+}
+
+fn write_camel_case(value: &[u8], buffer: &mut [u8]) {
+    // first copy entire (potentially wrong) slice to output
+    buffer[..value.len()].copy_from_slice(value);
+
+    let mut iter = value.iter();
+
+    // first character should be uppercase
+    if let Some(c @ b'a'..=b'z') = iter.next() {
+        buffer[0] = c & 0b1101_1111;
+    }
+
+    // track 1 ahead of the current position since that's the location being assigned to
+    let mut index = 2;
+
+    // remaining characters after hyphens should also be uppercase
+    while let Some(&c) = iter.next() {
+        if c == b'-' {
+            // advance iter by one and uppercase if needed
+            if let Some(c @ b'a'..=b'z') = iter.next() {
+                buffer[index] = c & 0b1101_1111;
+            }
+        }
+
+        index += 1;
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use std::rc::Rc;
+
+    use bytes::Bytes;
+    use http::header::AUTHORIZATION;
+
+    use super::*;
+    use crate::http::header::{HeaderValue, CONTENT_TYPE};
+    use crate::RequestHead;
+
+    #[test]
+    fn test_chunked_te() {
+        let mut bytes = BytesMut::new();
+        let mut enc = TransferEncoding::chunked();
+        {
+            assert!(!enc.encode(b"test", &mut bytes).ok().unwrap());
+            assert!(enc.encode(b"", &mut bytes).ok().unwrap());
+        }
+        assert_eq!(
+            bytes.split().freeze(),
+            Bytes::from_static(b"4\r\ntest\r\n0\r\n\r\n")
+        );
+    }
+
+    #[test]
+    fn test_camel_case() {
+        let mut bytes = BytesMut::with_capacity(2048);
+        let mut head = RequestHead::default();
+        head.set_camel_case_headers(true);
+        head.headers.insert(DATE, HeaderValue::from_static("date"));
+        head.headers
+            .insert(CONTENT_TYPE, HeaderValue::from_static("plain/text"));
+
+        let mut head = RequestHeadType::Owned(head);
+
+        let _ = head.encode_headers(
+            &mut bytes,
+            Version::HTTP_11,
+            BodySize::Empty,
+            ConnectionType::Close,
+            &ServiceConfig::default(),
+        );
+        let data =
+            String::from_utf8(Vec::from(bytes.split().freeze().as_ref())).unwrap();
+        eprintln!("{}", &data);
+
+        assert!(data.contains("Content-Length: 0\r\n"));
+        assert!(data.contains("Connection: close\r\n"));
+        assert!(data.contains("Content-Type: plain/text\r\n"));
+        assert!(data.contains("Date: date\r\n"));
+
+        let _ = head.encode_headers(
+            &mut bytes,
+            Version::HTTP_11,
+            BodySize::Stream,
+            ConnectionType::KeepAlive,
+            &ServiceConfig::default(),
+        );
+        let data =
+            String::from_utf8(Vec::from(bytes.split().freeze().as_ref())).unwrap();
+        assert!(data.contains("Transfer-Encoding: chunked\r\n"));
+        assert!(data.contains("Content-Type: plain/text\r\n"));
+        assert!(data.contains("Date: date\r\n"));
+
+        let mut head = RequestHead::default();
+        head.set_camel_case_headers(false);
+        head.headers.insert(DATE, HeaderValue::from_static("date"));
+        head.headers
+            .insert(CONTENT_TYPE, HeaderValue::from_static("plain/text"));
+        head.headers
+            .append(CONTENT_TYPE, HeaderValue::from_static("xml"));
+
+        let mut head = RequestHeadType::Owned(head);
+        let _ = head.encode_headers(
+            &mut bytes,
+            Version::HTTP_11,
+            BodySize::Stream,
+            ConnectionType::KeepAlive,
+            &ServiceConfig::default(),
+        );
+        let data =
+            String::from_utf8(Vec::from(bytes.split().freeze().as_ref())).unwrap();
+        assert!(data.contains("transfer-encoding: chunked\r\n"));
+        assert!(data.contains("content-type: xml\r\n"));
+        assert!(data.contains("content-type: plain/text\r\n"));
+        assert!(data.contains("date: date\r\n"));
+    }
+
+    #[test]
+    fn test_extra_headers() {
+        let mut bytes = BytesMut::with_capacity(2048);
+
+        let mut head = RequestHead::default();
+        head.headers.insert(
+            AUTHORIZATION,
+            HeaderValue::from_static("some authorization"),
+        );
+
+        let mut extra_headers = HeaderMap::new();
+        extra_headers.insert(
+            AUTHORIZATION,
+            HeaderValue::from_static("another authorization"),
+        );
+        extra_headers.insert(DATE, HeaderValue::from_static("date"));
+
+        let mut head = RequestHeadType::Rc(Rc::new(head), Some(extra_headers));
+
+        let _ = head.encode_headers(
+            &mut bytes,
+            Version::HTTP_11,
+            BodySize::Empty,
+            ConnectionType::Close,
+            &ServiceConfig::default(),
+        );
+        let data =
+            String::from_utf8(Vec::from(bytes.split().freeze().as_ref())).unwrap();
+        assert!(data.contains("content-length: 0\r\n"));
+        assert!(data.contains("connection: close\r\n"));
+        assert!(data.contains("authorization: another authorization\r\n"));
+        assert!(data.contains("date: date\r\n"));
+    }
+
+    #[test]
+    fn test_no_content_length() {
+        let mut bytes = BytesMut::with_capacity(2048);
+
+        let mut res: Response<()> =
+            Response::new(StatusCode::SWITCHING_PROTOCOLS).into_body::<()>();
+        res.headers_mut()
+            .insert(DATE, HeaderValue::from_static(&""));
+        res.headers_mut()
+            .insert(CONTENT_LENGTH, HeaderValue::from_static(&"0"));
+
+        let _ = res.encode_headers(
+            &mut bytes,
+            Version::HTTP_11,
+            BodySize::Stream,
+            ConnectionType::Upgrade,
+            &ServiceConfig::default(),
+        );
+        let data =
+            String::from_utf8(Vec::from(bytes.split().freeze().as_ref())).unwrap();
+        assert!(!data.contains("content-length: 0\r\n"));
+        assert!(!data.contains("transfer-encoding: chunked\r\n"));
+    }
+}

actix-http/src/h1/expect.rs

@@ -0,0 +1,38 @@
+use std::task::{Context, Poll};
+
+use actix_service::{Service, ServiceFactory};
+use futures_util::future::{ready, Ready};
+
+use crate::error::Error;
+use crate::request::Request;
+
+pub struct ExpectHandler;
+
+impl ServiceFactory<Request> for ExpectHandler {
+    type Response = Request;
+    type Error = Error;
+    type Config = ();
+    type Service = ExpectHandler;
+    type InitError = Error;
+    type Future = Ready<Result<Self::Service, Self::InitError>>;
+
+    fn new_service(&self, _: Self::Config) -> Self::Future {
+        ready(Ok(ExpectHandler))
+    }
+}
+
+impl Service<Request> for ExpectHandler {
+    type Response = Request;
+    type Error = Error;
+    type Future = Ready<Result<Self::Response, Self::Error>>;
+
+    fn poll_ready(&mut self, _: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
+        Poll::Ready(Ok(()))
+    }
+
+    fn call(&mut self, req: Request) -> Self::Future {
+        ready(Ok(req))
+        // TODO: add some way to trigger error
+        // Err(error::ErrorExpectationFailed("test"))
+    }
+}

actix-http/src/h1/mod.rs

@@ -0,0 +1,85 @@
+//! HTTP/1 implementation
+use bytes::{Bytes, BytesMut};
+
+mod client;
+mod codec;
+mod decoder;
+mod dispatcher;
+mod encoder;
+mod expect;
+mod payload;
+mod service;
+mod upgrade;
+mod utils;
+
+pub use self::client::{ClientCodec, ClientPayloadCodec};
+pub use self::codec::Codec;
+pub use self::dispatcher::Dispatcher;
+pub use self::expect::ExpectHandler;
+pub use self::payload::Payload;
+pub use self::service::{H1Service, H1ServiceHandler};
+pub use self::upgrade::UpgradeHandler;
+pub use self::utils::SendResponse;
+
+#[derive(Debug)]
+/// Codec message
+pub enum Message<T> {
+    /// Http message
+    Item(T),
+    /// Payload chunk
+    Chunk(Option<Bytes>),
+}
+
+impl<T> From<T> for Message<T> {
+    fn from(item: T) -> Self {
+        Message::Item(item)
+    }
+}
+
+/// Incoming request type
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum MessageType {
+    None,
+    Payload,
+    Stream,
+}
+
+const LW: usize = 2 * 1024;
+const HW: usize = 32 * 1024;
+
+pub(crate) fn reserve_readbuf(src: &mut BytesMut) {
+    let cap = src.capacity();
+    if cap < LW {
+        src.reserve(HW - cap);
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use crate::request::Request;
+
+    impl Message<Request> {
+        pub fn message(self) -> Request {
+            match self {
+                Message::Item(req) => req,
+                _ => panic!("error"),
+            }
+        }
+
+        pub fn chunk(self) -> Bytes {
+            match self {
+                Message::Chunk(Some(data)) => data,
+                _ => panic!("error"),
+            }
+        }
+
+        pub fn eof(self) -> bool {
+            match self {
+                Message::Chunk(None) => true,
+                Message::Chunk(Some(_)) => false,
+                _ => panic!("error"),
+            }
+        }
+    }
+}

actix-http/src/h1/payload.rs

@@ -0,0 +1,242 @@
+//! Payload stream
+use std::cell::RefCell;
+use std::collections::VecDeque;
+use std::pin::Pin;
+use std::rc::{Rc, Weak};
+use std::task::{Context, Poll};
+
+use actix_utils::task::LocalWaker;
+use bytes::Bytes;
+use futures_core::Stream;
+
+use crate::error::PayloadError;
+
+/// max buffer size 32k
+pub(crate) const MAX_BUFFER_SIZE: usize = 32_768;
+
+#[derive(Debug, PartialEq)]
+pub enum PayloadStatus {
+    Read,
+    Pause,
+    Dropped,
+}
+
+/// Buffered stream of bytes chunks
+///
+/// Payload stores chunks in a vector. First chunk can be received with
+/// `.readany()` method. Payload stream is not thread safe. Payload does not
+/// notify current task when new data is available.
+///
+/// Payload stream can be used as `Response` body stream.
+#[derive(Debug)]
+pub struct Payload {
+    inner: Rc<RefCell<Inner>>,
+}
+
+impl Payload {
+    /// Create payload stream.
+    ///
+    /// This method construct two objects responsible for bytes stream
+    /// generation.
+    ///
+    /// * `PayloadSender` - *Sender* side of the stream
+    ///
+    /// * `Payload` - *Receiver* side of the stream
+    pub fn create(eof: bool) -> (PayloadSender, Payload) {
+        let shared = Rc::new(RefCell::new(Inner::new(eof)));
+
+        (
+            PayloadSender {
+                inner: Rc::downgrade(&shared),
+            },
+            Payload { inner: shared },
+        )
+    }
+
+    /// Create empty payload
+    #[doc(hidden)]
+    pub fn empty() -> Payload {
+        Payload {
+            inner: Rc::new(RefCell::new(Inner::new(true))),
+        }
+    }
+
+    /// Length of the data in this payload
+    #[cfg(test)]
+    pub fn len(&self) -> usize {
+        self.inner.borrow().len()
+    }
+
+    /// Is payload empty
+    #[cfg(test)]
+    pub fn is_empty(&self) -> bool {
+        self.inner.borrow().len() == 0
+    }
+
+    /// Put unused data back to payload
+    #[inline]
+    pub fn unread_data(&mut self, data: Bytes) {
+        self.inner.borrow_mut().unread_data(data);
+    }
+
+    #[inline]
+    pub fn readany(
+        &mut self,
+        cx: &mut Context<'_>,
+    ) -> Poll<Option<Result<Bytes, PayloadError>>> {
+        self.inner.borrow_mut().readany(cx)
+    }
+}
+
+impl Stream for Payload {
+    type Item = Result<Bytes, PayloadError>;
+
+    fn poll_next(
+        self: Pin<&mut Self>,
+        cx: &mut Context<'_>,
+    ) -> Poll<Option<Result<Bytes, PayloadError>>> {
+        self.inner.borrow_mut().readany(cx)
+    }
+}
+
+/// Sender part of the payload stream
+pub struct PayloadSender {
+    inner: Weak<RefCell<Inner>>,
+}
+
+impl PayloadSender {
+    #[inline]
+    pub fn set_error(&mut self, err: PayloadError) {
+        if let Some(shared) = self.inner.upgrade() {
+            shared.borrow_mut().set_error(err)
+        }
+    }
+
+    #[inline]
+    pub fn feed_eof(&mut self) {
+        if let Some(shared) = self.inner.upgrade() {
+            shared.borrow_mut().feed_eof()
+        }
+    }
+
+    #[inline]
+    pub fn feed_data(&mut self, data: Bytes) {
+        if let Some(shared) = self.inner.upgrade() {
+            shared.borrow_mut().feed_data(data)
+        }
+    }
+
+    #[inline]
+    pub fn need_read(&self, cx: &mut Context<'_>) -> PayloadStatus {
+        // we check need_read only if Payload (other side) is alive,
+        // otherwise always return true (consume payload)
+        if let Some(shared) = self.inner.upgrade() {
+            if shared.borrow().need_read {
+                PayloadStatus::Read
+            } else {
+                shared.borrow_mut().io_task.register(cx.waker());
+                PayloadStatus::Pause
+            }
+        } else {
+            PayloadStatus::Dropped
+        }
+    }
+}
+
+#[derive(Debug)]
+struct Inner {
+    len: usize,
+    eof: bool,
+    err: Option<PayloadError>,
+    need_read: bool,
+    items: VecDeque<Bytes>,
+    task: LocalWaker,
+    io_task: LocalWaker,
+}
+
+impl Inner {
+    fn new(eof: bool) -> Self {
+        Inner {
+            eof,
+            len: 0,
+            err: None,
+            items: VecDeque::new(),
+            need_read: true,
+            task: LocalWaker::new(),
+            io_task: LocalWaker::new(),
+        }
+    }
+
+    #[inline]
+    fn set_error(&mut self, err: PayloadError) {
+        self.err = Some(err);
+    }
+
+    #[inline]
+    fn feed_eof(&mut self) {
+        self.eof = true;
+    }
+
+    #[inline]
+    fn feed_data(&mut self, data: Bytes) {
+        self.len += data.len();
+        self.items.push_back(data);
+        self.need_read = self.len < MAX_BUFFER_SIZE;
+        self.task.wake();
+    }
+
+    #[cfg(test)]
+    fn len(&self) -> usize {
+        self.len
+    }
+
+    fn readany(
+        &mut self,
+        cx: &mut Context<'_>,
+    ) -> Poll<Option<Result<Bytes, PayloadError>>> {
+        if let Some(data) = self.items.pop_front() {
+            self.len -= data.len();
+            self.need_read = self.len < MAX_BUFFER_SIZE;
+
+            if self.need_read && !self.eof {
+                self.task.register(cx.waker());
+            }
+            self.io_task.wake();
+            Poll::Ready(Some(Ok(data)))
+        } else if let Some(err) = self.err.take() {
+            Poll::Ready(Some(Err(err)))
+        } else if self.eof {
+            Poll::Ready(None)
+        } else {
+            self.need_read = true;
+            self.task.register(cx.waker());
+            self.io_task.wake();
+            Poll::Pending
+        }
+    }
+
+    fn unread_data(&mut self, data: Bytes) {
+        self.len += data.len();
+        self.items.push_front(data);
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use futures_util::future::poll_fn;
+
+    #[actix_rt::test]
+    async fn test_unread_data() {
+        let (_, mut payload) = Payload::create(false);
+
+        payload.unread_data(Bytes::from("data"));
+        assert!(!payload.is_empty());
+        assert_eq!(payload.len(), 4);
+
+        assert_eq!(
+            Bytes::from("data"),
+            poll_fn(|cx| payload.readany(cx)).await.unwrap().unwrap()
+        );
+    }
+}

actix-http/src/h1/service.rs

@@ -0,0 +1,475 @@
+use std::cell::RefCell;
+use std::future::Future;
+use std::marker::PhantomData;
+use std::pin::Pin;
+use std::rc::Rc;
+use std::task::{Context, Poll};
+use std::{fmt, net};
+
+use actix_codec::{AsyncRead, AsyncWrite, Framed};
+use actix_rt::net::TcpStream;
+use actix_service::{pipeline_factory, IntoServiceFactory, Service, ServiceFactory};
+use futures_core::ready;
+use futures_util::future::ready;
+
+use crate::body::MessageBody;
+use crate::config::ServiceConfig;
+use crate::error::{DispatchError, Error};
+use crate::request::Request;
+use crate::response::Response;
+use crate::service::HttpFlow;
+use crate::{ConnectCallback, OnConnectData};
+
+use super::codec::Codec;
+use super::dispatcher::Dispatcher;
+use super::{ExpectHandler, UpgradeHandler};
+
+/// `ServiceFactory` implementation for HTTP1 transport
+pub struct H1Service<T, S, B, X = ExpectHandler, U = UpgradeHandler> {
+    srv: S,
+    cfg: ServiceConfig,
+    expect: X,
+    upgrade: Option<U>,
+    on_connect_ext: Option<Rc<ConnectCallback<T>>>,
+    _phantom: PhantomData<B>,
+}
+
+impl<T, S, B> H1Service<T, S, B>
+where
+    S: ServiceFactory<Request, Config = ()>,
+    S::Error: Into<Error>,
+    S::InitError: fmt::Debug,
+    S::Response: Into<Response<B>>,
+    B: MessageBody,
+{
+    /// Create new `HttpService` instance with config.
+    pub(crate) fn with_config<F: IntoServiceFactory<S, Request>>(
+        cfg: ServiceConfig,
+        service: F,
+    ) -> Self {
+        H1Service {
+            cfg,
+            srv: service.into_factory(),
+            expect: ExpectHandler,
+            upgrade: None,
+            on_connect_ext: None,
+            _phantom: PhantomData,
+        }
+    }
+}
+
+impl<S, B, X, U> H1Service<TcpStream, S, B, X, U>
+where
+    S: ServiceFactory<Request, Config = ()>,
+    S::Error: Into<Error>,
+    S::InitError: fmt::Debug,
+    S::Response: Into<Response<B>>,
+    B: MessageBody,
+    X: ServiceFactory<Request, Config = (), Response = Request>,
+    X::Error: Into<Error>,
+    X::InitError: fmt::Debug,
+    U: ServiceFactory<(Request, Framed<TcpStream, Codec>), Config = (), Response = ()>,
+    U::Error: fmt::Display + Into<Error>,
+    U::InitError: fmt::Debug,
+{
+    /// Create simple tcp stream service
+    pub fn tcp(
+        self,
+    ) -> impl ServiceFactory<
+        TcpStream,
+        Config = (),
+        Response = (),
+        Error = DispatchError,
+        InitError = (),
+    > {
+        pipeline_factory(|io: TcpStream| {
+            let peer_addr = io.peer_addr().ok();
+            ready(Ok((io, peer_addr)))
+        })
+        .and_then(self)
+    }
+}
+
+#[cfg(feature = "openssl")]
+mod openssl {
+    use super::*;
+
+    use actix_service::ServiceFactoryExt;
+    use actix_tls::accept::openssl::{Acceptor, SslAcceptor, SslError, SslStream};
+    use actix_tls::accept::TlsError;
+
+    impl<S, B, X, U> H1Service<SslStream<TcpStream>, S, B, X, U>
+    where
+        S: ServiceFactory<Request, Config = ()>,
+        S::Error: Into<Error>,
+        S::InitError: fmt::Debug,
+        S::Response: Into<Response<B>>,
+        B: MessageBody,
+        X: ServiceFactory<Request, Config = (), Response = Request>,
+        X::Error: Into<Error>,
+        X::InitError: fmt::Debug,
+        U: ServiceFactory<
+            (Request, Framed<SslStream<TcpStream>, Codec>),
+            Config = (),
+            Response = (),
+        >,
+        U::Error: fmt::Display + Into<Error>,
+        U::InitError: fmt::Debug,
+    {
+        /// Create openssl based service
+        pub fn openssl(
+            self,
+            acceptor: SslAcceptor,
+        ) -> impl ServiceFactory<
+            TcpStream,
+            Config = (),
+            Response = (),
+            Error = TlsError<SslError, DispatchError>,
+            InitError = (),
+        > {
+            pipeline_factory(
+                Acceptor::new(acceptor)
+                    .map_err(TlsError::Tls)
+                    .map_init_err(|_| panic!()),
+            )
+            .and_then(|io: SslStream<TcpStream>| {
+                let peer_addr = io.get_ref().peer_addr().ok();
+                ready(Ok((io, peer_addr)))
+            })
+            .and_then(self.map_err(TlsError::Service))
+        }
+    }
+}
+
+#[cfg(feature = "rustls")]
+mod rustls {
+    use super::*;
+    use actix_service::ServiceFactoryExt;
+    use actix_tls::accept::rustls::{Acceptor, ServerConfig, TlsStream};
+    use actix_tls::accept::TlsError;
+    use std::{fmt, io};
+
+    impl<S, B, X, U> H1Service<TlsStream<TcpStream>, S, B, X, U>
+    where
+        S: ServiceFactory<Request, Config = ()>,
+        S::Error: Into<Error>,
+        S::InitError: fmt::Debug,
+        S::Response: Into<Response<B>>,
+        B: MessageBody,
+        X: ServiceFactory<Request, Config = (), Response = Request>,
+        X::Error: Into<Error>,
+        X::InitError: fmt::Debug,
+        U: ServiceFactory<
+            (Request, Framed<TlsStream<TcpStream>, Codec>),
+            Config = (),
+            Response = (),
+        >,
+        U::Error: fmt::Display + Into<Error>,
+        U::InitError: fmt::Debug,
+    {
+        /// Create rustls based service
+        pub fn rustls(
+            self,
+            config: ServerConfig,
+        ) -> impl ServiceFactory<
+            TcpStream,
+            Config = (),
+            Response = (),
+            Error = TlsError<io::Error, DispatchError>,
+            InitError = (),
+        > {
+            pipeline_factory(
+                Acceptor::new(config)
+                    .map_err(TlsError::Tls)
+                    .map_init_err(|_| panic!()),
+            )
+            .and_then(|io: TlsStream<TcpStream>| {
+                let peer_addr = io.get_ref().0.peer_addr().ok();
+                ready(Ok((io, peer_addr)))
+            })
+            .and_then(self.map_err(TlsError::Service))
+        }
+    }
+}
+
+impl<T, S, B, X, U> H1Service<T, S, B, X, U>
+where
+    S: ServiceFactory<Request, Config = ()>,
+    S::Error: Into<Error>,
+    S::Response: Into<Response<B>>,
+    S::InitError: fmt::Debug,
+    B: MessageBody,
+{
+    pub fn expect<X1>(self, expect: X1) -> H1Service<T, S, B, X1, U>
+    where
+        X1: ServiceFactory<Request, Response = Request>,
+        X1::Error: Into<Error>,
+        X1::InitError: fmt::Debug,
+    {
+        H1Service {
+            expect,
+            cfg: self.cfg,
+            srv: self.srv,
+            upgrade: self.upgrade,
+            on_connect_ext: self.on_connect_ext,
+            _phantom: PhantomData,
+        }
+    }
+
+    pub fn upgrade<U1>(self, upgrade: Option<U1>) -> H1Service<T, S, B, X, U1>
+    where
+        U1: ServiceFactory<(Request, Framed<T, Codec>), Response = ()>,
+        U1::Error: fmt::Display,
+        U1::InitError: fmt::Debug,
+    {
+        H1Service {
+            upgrade,
+            cfg: self.cfg,
+            srv: self.srv,
+            expect: self.expect,
+            on_connect_ext: self.on_connect_ext,
+            _phantom: PhantomData,
+        }
+    }
+
+    /// Set on connect callback.
+    pub(crate) fn on_connect_ext(mut self, f: Option<Rc<ConnectCallback<T>>>) -> Self {
+        self.on_connect_ext = f;
+        self
+    }
+}
+
+impl<T, S, B, X, U> ServiceFactory<(T, Option<net::SocketAddr>)>
+    for H1Service<T, S, B, X, U>
+where
+    T: AsyncRead + AsyncWrite + Unpin,
+    S: ServiceFactory<Request, Config = ()>,
+    S::Error: Into<Error>,
+    S::Response: Into<Response<B>>,
+    S::InitError: fmt::Debug,
+    B: MessageBody,
+    X: ServiceFactory<Request, Config = (), Response = Request>,
+    X::Error: Into<Error>,
+    X::InitError: fmt::Debug,
+    U: ServiceFactory<(Request, Framed<T, Codec>), Config = (), Response = ()>,
+    U::Error: fmt::Display + Into<Error>,
+    U::InitError: fmt::Debug,
+{
+    type Response = ();
+    type Error = DispatchError;
+    type Config = ();
+    type Service = H1ServiceHandler<T, S::Service, B, X::Service, U::Service>;
+    type InitError = ();
+    type Future = H1ServiceResponse<T, S, B, X, U>;
+
+    fn new_service(&self, _: ()) -> Self::Future {
+        H1ServiceResponse {
+            fut: self.srv.new_service(()),
+            fut_ex: Some(self.expect.new_service(())),
+            fut_upg: self.upgrade.as_ref().map(|f| f.new_service(())),
+            expect: None,
+            upgrade: None,
+            on_connect_ext: self.on_connect_ext.clone(),
+            cfg: Some(self.cfg.clone()),
+            _phantom: PhantomData,
+        }
+    }
+}
+
+#[doc(hidden)]
+#[pin_project::pin_project]
+pub struct H1ServiceResponse<T, S, B, X, U>
+where
+    S: ServiceFactory<Request>,
+    S::Error: Into<Error>,
+    S::InitError: fmt::Debug,
+    X: ServiceFactory<Request, Response = Request>,
+    X::Error: Into<Error>,
+    X::InitError: fmt::Debug,
+    U: ServiceFactory<(Request, Framed<T, Codec>), Response = ()>,
+    U::Error: fmt::Display,
+    U::InitError: fmt::Debug,
+{
+    #[pin]
+    fut: S::Future,
+    #[pin]
+    fut_ex: Option<X::Future>,
+    #[pin]
+    fut_upg: Option<U::Future>,
+    expect: Option<X::Service>,
+    upgrade: Option<U::Service>,
+    on_connect_ext: Option<Rc<ConnectCallback<T>>>,
+    cfg: Option<ServiceConfig>,
+    _phantom: PhantomData<B>,
+}
+
+impl<T, S, B, X, U> Future for H1ServiceResponse<T, S, B, X, U>
+where
+    T: AsyncRead + AsyncWrite + Unpin,
+    S: ServiceFactory<Request>,
+    S::Error: Into<Error>,
+    S::Response: Into<Response<B>>,
+    S::InitError: fmt::Debug,
+    B: MessageBody,
+    X: ServiceFactory<Request, Response = Request>,
+    X::Error: Into<Error>,
+    X::InitError: fmt::Debug,
+    U: ServiceFactory<(Request, Framed<T, Codec>), Response = ()>,
+    U::Error: fmt::Display,
+    U::InitError: fmt::Debug,
+{
+    type Output = Result<H1ServiceHandler<T, S::Service, B, X::Service, U::Service>, ()>;
+
+    fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
+        let mut this = self.as_mut().project();
+
+        if let Some(fut) = this.fut_ex.as_pin_mut() {
+            let expect = ready!(fut
+                .poll(cx)
+                .map_err(|e| log::error!("Init http service error: {:?}", e)))?;
+            this = self.as_mut().project();
+            *this.expect = Some(expect);
+            this.fut_ex.set(None);
+        }
+
+        if let Some(fut) = this.fut_upg.as_pin_mut() {
+            let upgrade = ready!(fut
+                .poll(cx)
+                .map_err(|e| log::error!("Init http service error: {:?}", e)))?;
+            this = self.as_mut().project();
+            *this.upgrade = Some(upgrade);
+            this.fut_upg.set(None);
+        }
+
+        let result = ready!(this
+            .fut
+            .poll(cx)
+            .map_err(|e| log::error!("Init http service error: {:?}", e)));
+
+        Poll::Ready(result.map(|service| {
+            let this = self.as_mut().project();
+
+            H1ServiceHandler::new(
+                this.cfg.take().unwrap(),
+                service,
+                this.expect.take().unwrap(),
+                this.upgrade.take(),
+                this.on_connect_ext.clone(),
+            )
+        }))
+    }
+}
+
+/// `Service` implementation for HTTP/1 transport
+pub struct H1ServiceHandler<T, S, B, X, U>
+where
+    S: Service<Request>,
+    X: Service<Request>,
+    U: Service<(Request, Framed<T, Codec>)>,
+{
+    flow: Rc<RefCell<HttpFlow<S, X, U>>>,
+    on_connect_ext: Option<Rc<ConnectCallback<T>>>,
+    cfg: ServiceConfig,
+    _phantom: PhantomData<B>,
+}
+
+impl<T, S, B, X, U> H1ServiceHandler<T, S, B, X, U>
+where
+    S: Service<Request>,
+    S::Error: Into<Error>,
+    S::Response: Into<Response<B>>,
+    B: MessageBody,
+    X: Service<Request, Response = Request>,
+    X::Error: Into<Error>,
+    U: Service<(Request, Framed<T, Codec>), Response = ()>,
+    U::Error: fmt::Display,
+{
+    fn new(
+        cfg: ServiceConfig,
+        service: S,
+        expect: X,
+        upgrade: Option<U>,
+        on_connect_ext: Option<Rc<ConnectCallback<T>>>,
+    ) -> H1ServiceHandler<T, S, B, X, U> {
+        H1ServiceHandler {
+            flow: HttpFlow::new(service, expect, upgrade),
+            cfg,
+            on_connect_ext,
+            _phantom: PhantomData,
+        }
+    }
+}
+
+impl<T, S, B, X, U> Service<(T, Option<net::SocketAddr>)>
+    for H1ServiceHandler<T, S, B, X, U>
+where
+    T: AsyncRead + AsyncWrite + Unpin,
+    S: Service<Request>,
+    S::Error: Into<Error>,
+    S::Response: Into<Response<B>>,
+    B: MessageBody,
+    X: Service<Request, Response = Request>,
+    X::Error: Into<Error>,
+    U: Service<(Request, Framed<T, Codec>), Response = ()>,
+    U::Error: fmt::Display + Into<Error>,
+{
+    type Response = ();
+    type Error = DispatchError;
+    type Future = Dispatcher<T, S, B, X, U>;
+
+    fn poll_ready(&mut self, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
+        let mut flow = self.flow.borrow_mut();
+        let ready = flow
+            .expect
+            .poll_ready(cx)
+            .map_err(|e| {
+                let e = e.into();
+                log::error!("Http service readiness error: {:?}", e);
+                DispatchError::Service(e)
+            })?
+            .is_ready();
+
+        let ready = flow
+            .service
+            .poll_ready(cx)
+            .map_err(|e| {
+                let e = e.into();
+                log::error!("Http service readiness error: {:?}", e);
+                DispatchError::Service(e)
+            })?
+            .is_ready()
+            && ready;
+
+        let ready = if let Some(ref mut upg) = flow.upgrade {
+            upg.poll_ready(cx)
+                .map_err(|e| {
+                    let e = e.into();
+                    log::error!("Http service readiness error: {:?}", e);
+                    DispatchError::Service(e)
+                })?
+                .is_ready()
+                && ready
+        } else {
+            ready
+        };
+
+        if ready {
+            Poll::Ready(Ok(()))
+        } else {
+            Poll::Pending
+        }
+    }
+
+    fn call(&mut self, (io, addr): (T, Option<net::SocketAddr>)) -> Self::Future {
+        let on_connect_data =
+            OnConnectData::from_io(&io, self.on_connect_ext.as_deref());
+
+        Dispatcher::new(
+            io,
+            self.cfg.clone(),
+            self.flow.clone(),
+            on_connect_data,
+            addr,
+        )
+    }
+}

actix-http/src/h1/upgrade.rs

@@ -0,0 +1,38 @@
+use std::task::{Context, Poll};
+
+use actix_codec::Framed;
+use actix_service::{Service, ServiceFactory};
+use futures_util::future::{ready, Ready};
+
+use crate::error::Error;
+use crate::h1::Codec;
+use crate::request::Request;
+
+pub struct UpgradeHandler;
+
+impl<T> ServiceFactory<(Request, Framed<T, Codec>)> for UpgradeHandler {
+    type Response = ();
+    type Error = Error;
+    type Config = ();
+    type Service = UpgradeHandler;
+    type InitError = Error;
+    type Future = Ready<Result<Self::Service, Self::InitError>>;
+
+    fn new_service(&self, _: ()) -> Self::Future {
+        unimplemented!()
+    }
+}
+
+impl<T> Service<(Request, Framed<T, Codec>)> for UpgradeHandler {
+    type Response = ();
+    type Error = Error;
+    type Future = Ready<Result<Self::Response, Self::Error>>;
+
+    fn poll_ready(&mut self, _: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
+        Poll::Ready(Ok(()))
+    }
+
+    fn call(&mut self, _: (Request, Framed<T, Codec>)) -> Self::Future {
+        ready(Ok(()))
+    }
+}

actix-http/src/h1/utils.rs

@@ -0,0 +1,115 @@
+use std::future::Future;
+use std::pin::Pin;
+use std::task::{Context, Poll};
+
+use actix_codec::{AsyncRead, AsyncWrite, Framed};
+
+use crate::body::{BodySize, MessageBody, ResponseBody};
+use crate::error::Error;
+use crate::h1::{Codec, Message};
+use crate::response::Response;
+
+/// Send HTTP/1 response
+#[pin_project::pin_project]
+pub struct SendResponse<T, B> {
+    res: Option<Message<(Response<()>, BodySize)>>,
+    #[pin]
+    body: Option<ResponseBody<B>>,
+    #[pin]
+    framed: Option<Framed<T, Codec>>,
+}
+
+impl<T, B> SendResponse<T, B>
+where
+    B: MessageBody,
+{
+    pub fn new(framed: Framed<T, Codec>, response: Response<B>) -> Self {
+        let (res, body) = response.into_parts();
+
+        SendResponse {
+            res: Some((res, body.size()).into()),
+            body: Some(body),
+            framed: Some(framed),
+        }
+    }
+}
+
+impl<T, B> Future for SendResponse<T, B>
+where
+    T: AsyncRead + AsyncWrite + Unpin,
+    B: MessageBody + Unpin,
+{
+    type Output = Result<Framed<T, Codec>, Error>;
+
+    // TODO: rethink if we need loops in polls
+    fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
+        let mut this = self.as_mut().project();
+
+        let mut body_done = this.body.is_none();
+        loop {
+            let mut body_ready = !body_done;
+
+            // send body
+            if this.res.is_none() && body_ready {
+                while body_ready
+                    && !body_done
+                    && !this
+                        .framed
+                        .as_ref()
+                        .as_pin_ref()
+                        .unwrap()
+                        .is_write_buf_full()
+                {
+                    match this.body.as_mut().as_pin_mut().unwrap().poll_next(cx)? {
+                        Poll::Ready(item) => {
+                            // body is done when item is None
+                            body_done = item.is_none();
+                            if body_done {
+                                let _ = this.body.take();
+                            }
+                            let framed = this.framed.as_mut().as_pin_mut().unwrap();
+                            framed.write(Message::Chunk(item))?;
+                        }
+                        Poll::Pending => body_ready = false,
+                    }
+                }
+            }
+
+            let framed = this.framed.as_mut().as_pin_mut().unwrap();
+
+            // flush write buffer
+            if !framed.is_write_buf_empty() {
+                match framed.flush(cx)? {
+                    Poll::Ready(_) => {
+                        if body_ready {
+                            continue;
+                        } else {
+                            return Poll::Pending;
+                        }
+                    }
+                    Poll::Pending => return Poll::Pending,
+                }
+            }
+
+            // send response
+            if let Some(res) = this.res.take() {
+                framed.write(res)?;
+                continue;
+            }
+
+            if !body_done {
+                if body_ready {
+                    continue;
+                } else {
+                    return Poll::Pending;
+                }
+            } else {
+                break;
+            }
+        }
+
+        let framed = this.framed.take().unwrap();
+
+        Poll::Ready(Ok(framed))
+    }
+}

actix-http/src/h2/dispatcher.rs

@@ -0,0 +1,371 @@
+use std::cell::RefCell;
+use std::future::Future;
+use std::marker::PhantomData;
+use std::net;
+use std::pin::Pin;
+use std::rc::Rc;
+use std::task::{Context, Poll};
+use std::{cmp, convert::TryFrom};
+
+use actix_codec::{AsyncRead, AsyncWrite};
+use actix_rt::time::{Instant, Sleep};
+use actix_service::Service;
+use bytes::{Bytes, BytesMut};
+use futures_core::ready;
+use h2::server::{Connection, SendResponse};
+use h2::SendStream;
+use http::header::{HeaderValue, CONNECTION, CONTENT_LENGTH, DATE, TRANSFER_ENCODING};
+use log::{error, trace};
+
+use crate::body::{BodySize, MessageBody, ResponseBody};
+use crate::config::ServiceConfig;
+use crate::error::{DispatchError, Error};
+use crate::message::ResponseHead;
+use crate::payload::Payload;
+use crate::request::Request;
+use crate::response::Response;
+use crate::service::HttpFlow;
+use crate::OnConnectData;
+
+const CHUNK_SIZE: usize = 16_384;
+
+/// Dispatcher for HTTP/2 protocol.
+#[pin_project::pin_project]
+pub struct Dispatcher<T, S, B, X, U>
+where
+    T: AsyncRead + AsyncWrite + Unpin,
+    S: Service<Request>,
+    B: MessageBody,
+{
+    flow: Rc<RefCell<HttpFlow<S, X, U>>>,
+    connection: Connection<T, Bytes>,
+    on_connect_data: OnConnectData,
+    config: ServiceConfig,
+    peer_addr: Option<net::SocketAddr>,
+    ka_expire: Instant,
+    ka_timer: Option<Sleep>,
+    _phantom: PhantomData<B>,
+}
+
+impl<T, S, B, X, U> Dispatcher<T, S, B, X, U>
+where
+    T: AsyncRead + AsyncWrite + Unpin,
+    S: Service<Request>,
+    S::Error: Into<Error>,
+    S::Response: Into<Response<B>>,
+    B: MessageBody,
+{
+    pub(crate) fn new(
+        services: Rc<RefCell<HttpFlow<S, X, U>>>,
+        connection: Connection<T, Bytes>,
+        on_connect_data: OnConnectData,
+        config: ServiceConfig,
+        timeout: Option<Sleep>,
+        peer_addr: Option<net::SocketAddr>,
+    ) -> Self {
+        // let keepalive = config.keep_alive_enabled();
+        // let flags = if keepalive {
+        // Flags::KEEPALIVE | Flags::KEEPALIVE_ENABLED
+        // } else {
+        //     Flags::empty()
+        // };
+
+        // keep-alive timer
+        let (ka_expire, ka_timer) = if let Some(delay) = timeout {
+            (delay.deadline(), Some(delay))
+        } else if let Some(delay) = config.keep_alive_timer() {
+            (delay.deadline(), Some(delay))
+        } else {
+            (config.now(), None)
+        };
+
+        Dispatcher {
+            flow: services,
+            config,
+            peer_addr,
+            connection,
+            on_connect_data,
+            ka_expire,
+            ka_timer,
+            _phantom: PhantomData,
+        }
+    }
+}
+
+impl<T, S, B, X, U> Future for Dispatcher<T, S, B, X, U>
+where
+    T: AsyncRead + AsyncWrite + Unpin,
+    S: Service<Request>,
+    S::Error: Into<Error> + 'static,
+    S::Future: 'static,
+    S::Response: Into<Response<B>> + 'static,
+    B: MessageBody + 'static,
+{
+    type Output = Result<(), DispatchError>;
+
+    #[inline]
+    fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
+        let this = self.get_mut();
+
+        loop {
+            match ready!(Pin::new(&mut this.connection).poll_accept(cx)) {
+                None => return Poll::Ready(Ok(())),
+
+                Some(Err(err)) => return Poll::Ready(Err(err.into())),
+
+                Some(Ok((req, res))) => {
+                    // update keep-alive expire
+                    if this.ka_timer.is_some() {
+                        if let Some(expire) = this.config.keep_alive_expire() {
+                            this.ka_expire = expire;
+                        }
+                    }
+
+                    let (parts, body) = req.into_parts();
+                    let pl = crate::h2::Payload::new(body);
+                    let pl = Payload::<crate::payload::PayloadStream>::H2(pl);
+                    let mut req = Request::with_payload(pl);
+
+                    let head = &mut req.head_mut();
+                    head.uri = parts.uri;
+                    head.method = parts.method;
+                    head.version = parts.version;
+                    head.headers = parts.headers.into();
+                    head.peer_addr = this.peer_addr;
+
+                    // merge on_connect_ext data into request extensions
+                    this.on_connect_data.merge_into(&mut req);
+
+                    let svc = ServiceResponse::<S::Future, S::Response, S::Error, B> {
+                        state: ServiceResponseState::ServiceCall(
+                            this.flow.borrow_mut().service.call(req),
+                            Some(res),
+                        ),
+                        config: this.config.clone(),
+                        buffer: None,
+                        _phantom: PhantomData,
+                    };
+
+                    actix_rt::spawn(svc);
+                }
+            }
+        }
+    }
+}
+
+#[pin_project::pin_project]
+struct ServiceResponse<F, I, E, B> {
+    #[pin]
+    state: ServiceResponseState<F, B>,
+    config: ServiceConfig,
+    buffer: Option<Bytes>,
+    _phantom: PhantomData<(I, E)>,
+}
+
+#[pin_project::pin_project(project = ServiceResponseStateProj)]
+enum ServiceResponseState<F, B> {
+    ServiceCall(#[pin] F, Option<SendResponse<Bytes>>),
+    SendPayload(SendStream<Bytes>, #[pin] ResponseBody<B>),
+}
+
+impl<F, I, E, B> ServiceResponse<F, I, E, B>
+where
+    F: Future<Output = Result<I, E>>,
+    E: Into<Error>,
+    I: Into<Response<B>>,
+    B: MessageBody,
+{
+    fn prepare_response(
+        &self,
+        head: &ResponseHead,
+        size: &mut BodySize,
+    ) -> http::Response<()> {
+        let mut has_date = false;
+        let mut skip_len = size != &BodySize::Stream;
+
+        let mut res = http::Response::new(());
+        *res.status_mut() = head.status;
+        *res.version_mut() = http::Version::HTTP_2;
+
+        // Content length
+        match head.status {
+            http::StatusCode::NO_CONTENT
+            | http::StatusCode::CONTINUE
+            | http::StatusCode::PROCESSING => *size = BodySize::None,
+            http::StatusCode::SWITCHING_PROTOCOLS => {
+                skip_len = true;
+                *size = BodySize::Stream;
+            }
+            _ => {}
+        }
+
+        let _ = match size {
+            BodySize::None | BodySize::Stream => None,
+            BodySize::Empty => res
+                .headers_mut()
+                .insert(CONTENT_LENGTH, HeaderValue::from_static("0")),
+            BodySize::Sized(len) => res.headers_mut().insert(
+                CONTENT_LENGTH,
+                HeaderValue::try_from(format!("{}", len)).unwrap(),
+            ),
+        };
+
+        // copy headers
+        for (key, value) in head.headers.iter() {
+            match *key {
+                // omit HTTP/1 only headers
+                CONNECTION | TRANSFER_ENCODING => continue,
+                CONTENT_LENGTH if skip_len => continue,
+                DATE => has_date = true,
+                _ => {}
+            }
+
+            res.headers_mut().append(key, value.clone());
+        }
+
+        // set date header
+        if !has_date {
+            let mut bytes = BytesMut::with_capacity(29);
+            self.config.set_date_header(&mut bytes);
+            res.headers_mut().insert(
+                DATE,
+                // SAFETY: serialized date-times are known ASCII strings
+                unsafe { HeaderValue::from_maybe_shared_unchecked(bytes.freeze()) },
+            );
+        }
+
+        res
+    }
+}
+
+impl<F, I, E, B> Future for ServiceResponse<F, I, E, B>
+where
+    F: Future<Output = Result<I, E>>,
+    E: Into<Error>,
+    I: Into<Response<B>>,
+    B: MessageBody,
+{
+    type Output = ();
+
+    fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
+        let mut this = self.as_mut().project();
+
+        match this.state.project() {
+            ServiceResponseStateProj::ServiceCall(call, send) => {
+                match ready!(call.poll(cx)) {
+                    Ok(res) => {
+                        let (res, body) = res.into().replace_body(());
+
+                        let mut send = send.take().unwrap();
+                        let mut size = body.size();
+                        let h2_res =
+                            self.as_mut().prepare_response(res.head(), &mut size);
+                        this = self.as_mut().project();
+
+                        let stream = match send.send_response(h2_res, size.is_eof()) {
+                            Err(e) => {
+                                trace!("Error sending HTTP/2 response: {:?}", e);
+                                return Poll::Ready(());
+                            }
+                            Ok(stream) => stream,
+                        };
+
+                        if size.is_eof() {
+                            Poll::Ready(())
+                        } else {
+                            this.state
+                                .set(ServiceResponseState::SendPayload(stream, body));
+                            self.poll(cx)
+                        }
+                    }
+
+                    Err(e) => {
+                        let res: Response = e.into().into();
+                        let (res, body) = res.replace_body(());
+
+                        let mut send = send.take().unwrap();
+                        let mut size = body.size();
+                        let h2_res =
+                            self.as_mut().prepare_response(res.head(), &mut size);
+                        this = self.as_mut().project();
+
+                        let stream = match send.send_response(h2_res, size.is_eof()) {
+                            Err(e) => {
+                                trace!("Error sending HTTP/2 response: {:?}", e);
+                                return Poll::Ready(());
+                            }
+                            Ok(stream) => stream,
+                        };
+
+                        if size.is_eof() {
+                            Poll::Ready(())
+                        } else {
+                            this.state.set(ServiceResponseState::SendPayload(
+                                stream,
+                                body.into_body(),
+                            ));
+                            self.poll(cx)
+                        }
+                    }
+                }
+            }
+
+            ServiceResponseStateProj::SendPayload(ref mut stream, ref mut body) => {
+                loop {
+                    loop {
+                        match this.buffer {
+                            Some(ref mut buffer) => {
+                                match ready!(stream.poll_capacity(cx)) {
+                                    None => return Poll::Ready(()),
+
+                                    Some(Ok(cap)) => {
+                                        let len = buffer.len();
+                                        let bytes = buffer.split_to(cmp::min(cap, len));
+
+                                        if let Err(e) = stream.send_data(bytes, false) {
+                                            warn!("{:?}", e);
+                                            return Poll::Ready(());
+                                        } else if !buffer.is_empty() {
+                                            let cap = cmp::min(buffer.len(), CHUNK_SIZE);
+                                            stream.reserve_capacity(cap);
+                                        } else {
+                                            this.buffer.take();
+                                        }
+                                    }
+
+                                    Some(Err(e)) => {
+                                        warn!("{:?}", e);
+                                        return Poll::Ready(());
+                                    }
+                                }
+                            }
+
+                            None => match ready!(body.as_mut().poll_next(cx)) {
+                                None => {
+                                    if let Err(e) = stream.send_data(Bytes::new(), true)
+                                    {
+                                        warn!("{:?}", e);
+                                    }
+                                    return Poll::Ready(());
+                                }
+
+                                Some(Ok(chunk)) => {
+                                    stream.reserve_capacity(cmp::min(
+                                        chunk.len(),
+                                        CHUNK_SIZE,
+                                    ));
+                                    *this.buffer = Some(chunk);
+                                }
+
+                                Some(Err(e)) => {
+                                    error!("Response payload stream error: {:?}", e);
+                                    return Poll::Ready(());
+                                }
+                            },
+                        }
+                    }
+                }
+            }
+        }
+    }
+}

actix-http/src/h2/mod.rs

@@ -0,0 +1,52 @@
+//! HTTP/2 implementation.
+
+use std::{
+    pin::Pin,
+    task::{Context, Poll},
+};
+
+use bytes::Bytes;
+use futures_core::{ready, Stream};
+use h2::RecvStream;
+
+mod dispatcher;
+mod service;
+
+pub use self::dispatcher::Dispatcher;
+pub use self::service::H2Service;
+use crate::error::PayloadError;
+
+/// HTTP/2 peer stream.
+pub struct Payload {
+    stream: RecvStream,
+}
+
+impl Payload {
+    pub(crate) fn new(stream: RecvStream) -> Self {
+        Self { stream }
+    }
+}
+
+impl Stream for Payload {
+    type Item = Result<Bytes, PayloadError>;
+
+    fn poll_next(
+        self: Pin<&mut Self>,
+        cx: &mut Context<'_>,
+    ) -> Poll<Option<Self::Item>> {
+        let this = self.get_mut();
+
+        match ready!(Pin::new(&mut this.stream).poll_data(cx)) {
+            Some(Ok(chunk)) => {
+                let len = chunk.len();
+
+                match this.stream.flow_control().release_capacity(len) {
+                    Ok(()) => Poll::Ready(Some(Ok(chunk))),
+                    Err(err) => Poll::Ready(Some(Err(err.into()))),
+                }
+            }
+            Some(Err(err)) => Poll::Ready(Some(Err(err.into()))),
+            None => Poll::Ready(None),
+        }
+    }
+}

actix-http/src/h2/service.rs

@@ -0,0 +1,384 @@
+use std::cell::RefCell;
+use std::future::Future;
+use std::marker::PhantomData;
+use std::pin::Pin;
+use std::task::{Context, Poll};
+use std::{net, rc::Rc};
+
+use actix_codec::{AsyncRead, AsyncWrite};
+use actix_rt::net::TcpStream;
+use actix_service::{
+    fn_factory, fn_service, pipeline_factory, IntoServiceFactory, Service,
+    ServiceFactory,
+};
+use bytes::Bytes;
+use futures_core::ready;
+use futures_util::future::ok;
+use h2::server::{self, Handshake};
+use log::error;
+
+use crate::body::MessageBody;
+use crate::config::ServiceConfig;
+use crate::error::{DispatchError, Error};
+use crate::request::Request;
+use crate::response::Response;
+use crate::service::HttpFlow;
+use crate::{ConnectCallback, OnConnectData};
+
+use super::dispatcher::Dispatcher;
+
+/// `ServiceFactory` implementation for HTTP/2 transport
+pub struct H2Service<T, S, B> {
+    srv: S,
+    cfg: ServiceConfig,
+    on_connect_ext: Option<Rc<ConnectCallback<T>>>,
+    _phantom: PhantomData<(T, B)>,
+}
+
+impl<T, S, B> H2Service<T, S, B>
+where
+    S: ServiceFactory<Request, Config = ()>,
+    S::Error: Into<Error> + 'static,
+    S::Response: Into<Response<B>> + 'static,
+    <S::Service as Service<Request>>::Future: 'static,
+    B: MessageBody + 'static,
+{
+    /// Create new `H2Service` instance with config.
+    pub(crate) fn with_config<F: IntoServiceFactory<S, Request>>(
+        cfg: ServiceConfig,
+        service: F,
+    ) -> Self {
+        H2Service {
+            cfg,
+            on_connect_ext: None,
+            srv: service.into_factory(),
+            _phantom: PhantomData,
+        }
+    }
+
+    /// Set on connect callback.
+    pub(crate) fn on_connect_ext(mut self, f: Option<Rc<ConnectCallback<T>>>) -> Self {
+        self.on_connect_ext = f;
+        self
+    }
+}
+
+impl<S, B> H2Service<TcpStream, S, B>
+where
+    S: ServiceFactory<Request, Config = ()>,
+    S::Error: Into<Error> + 'static,
+    S::Response: Into<Response<B>> + 'static,
+    <S::Service as Service<Request>>::Future: 'static,
+    B: MessageBody + 'static,
+{
+    /// Create plain TCP based service
+    pub fn tcp(
+        self,
+    ) -> impl ServiceFactory<
+        TcpStream,
+        Config = (),
+        Response = (),
+        Error = DispatchError,
+        InitError = S::InitError,
+    > {
+        pipeline_factory(fn_factory(|| async {
+            Ok::<_, S::InitError>(fn_service(|io: TcpStream| {
+                let peer_addr = io.peer_addr().ok();
+                ok::<_, DispatchError>((io, peer_addr))
+            }))
+        }))
+        .and_then(self)
+    }
+}
+
+#[cfg(feature = "openssl")]
+mod openssl {
+    use actix_service::{fn_factory, fn_service, ServiceFactoryExt};
+    use actix_tls::accept::openssl::{Acceptor, SslAcceptor, SslError, SslStream};
+    use actix_tls::accept::TlsError;
+
+    use super::*;
+
+    impl<S, B> H2Service<SslStream<TcpStream>, S, B>
+    where
+        S: ServiceFactory<Request, Config = ()>,
+        S::Error: Into<Error> + 'static,
+        S::Response: Into<Response<B>> + 'static,
+        <S::Service as Service<Request>>::Future: 'static,
+        B: MessageBody + 'static,
+    {
+        /// Create OpenSSL based service
+        pub fn openssl(
+            self,
+            acceptor: SslAcceptor,
+        ) -> impl ServiceFactory<
+            TcpStream,
+            Config = (),
+            Response = (),
+            Error = TlsError<SslError, DispatchError>,
+            InitError = S::InitError,
+        > {
+            pipeline_factory(
+                Acceptor::new(acceptor)
+                    .map_err(TlsError::Tls)
+                    .map_init_err(|_| panic!()),
+            )
+            .and_then(fn_factory(|| {
+                ok::<_, S::InitError>(fn_service(|io: SslStream<TcpStream>| {
+                    let peer_addr = io.get_ref().peer_addr().ok();
+                    ok((io, peer_addr))
+                }))
+            }))
+            .and_then(self.map_err(TlsError::Service))
+        }
+    }
+}
+
+#[cfg(feature = "rustls")]
+mod rustls {
+    use super::*;
+    use actix_service::ServiceFactoryExt;
+    use actix_tls::accept::rustls::{Acceptor, ServerConfig, TlsStream};
+    use actix_tls::accept::TlsError;
+    use std::io;
+
+    impl<S, B> H2Service<TlsStream<TcpStream>, S, B>
+    where
+        S: ServiceFactory<Request, Config = ()>,
+        S::Error: Into<Error> + 'static,
+        S::Response: Into<Response<B>> + 'static,
+        <S::Service as Service<Request>>::Future: 'static,
+        B: MessageBody + 'static,
+    {
+        /// Create Rustls based service
+        pub fn rustls(
+            self,
+            mut config: ServerConfig,
+        ) -> impl ServiceFactory<
+            TcpStream,
+            Config = (),
+            Response = (),
+            Error = TlsError<io::Error, DispatchError>,
+            InitError = S::InitError,
+        > {
+            let protos = vec!["h2".to_string().into()];
+            config.set_protocols(&protos);
+
+            pipeline_factory(
+                Acceptor::new(config)
+                    .map_err(TlsError::Tls)
+                    .map_init_err(|_| panic!()),
+            )
+            .and_then(fn_factory(|| {
+                ok::<_, S::InitError>(fn_service(|io: TlsStream<TcpStream>| {
+                    let peer_addr = io.get_ref().0.peer_addr().ok();
+                    ok((io, peer_addr))
+                }))
+            }))
+            .and_then(self.map_err(TlsError::Service))
+        }
+    }
+}
+
+impl<T, S, B> ServiceFactory<(T, Option<net::SocketAddr>)> for H2Service<T, S, B>
+where
+    T: AsyncRead + AsyncWrite + Unpin,
+    S: ServiceFactory<Request, Config = ()>,
+    S::Error: Into<Error> + 'static,
+    S::Response: Into<Response<B>> + 'static,
+    <S::Service as Service<Request>>::Future: 'static,
+    B: MessageBody + 'static,
+{
+    type Response = ();
+    type Error = DispatchError;
+    type Config = ();
+    type Service = H2ServiceHandler<T, S::Service, B>;
+    type InitError = S::InitError;
+    type Future = H2ServiceResponse<T, S, B>;
+
+    fn new_service(&self, _: ()) -> Self::Future {
+        H2ServiceResponse {
+            fut: self.srv.new_service(()),
+            cfg: Some(self.cfg.clone()),
+            on_connect_ext: self.on_connect_ext.clone(),
+            _phantom: PhantomData,
+        }
+    }
+}
+
+#[doc(hidden)]
+#[pin_project::pin_project]
+pub struct H2ServiceResponse<T, S, B>
+where
+    S: ServiceFactory<Request>,
+{
+    #[pin]
+    fut: S::Future,
+    cfg: Option<ServiceConfig>,
+    on_connect_ext: Option<Rc<ConnectCallback<T>>>,
+    _phantom: PhantomData<B>,
+}
+
+impl<T, S, B> Future for H2ServiceResponse<T, S, B>
+where
+    T: AsyncRead + AsyncWrite + Unpin,
+    S: ServiceFactory<Request, Config = ()>,
+    S::Error: Into<Error> + 'static,
+    S::Response: Into<Response<B>> + 'static,
+    <S::Service as Service<Request>>::Future: 'static,
+    B: MessageBody + 'static,
+{
+    type Output = Result<H2ServiceHandler<T, S::Service, B>, S::InitError>;
+
+    fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
+        let this = self.as_mut().project();
+
+        this.fut.poll(cx).map_ok(|service| {
+            let this = self.as_mut().project();
+            H2ServiceHandler::new(
+                this.cfg.take().unwrap(),
+                this.on_connect_ext.clone(),
+                service,
+            )
+        })
+    }
+}
+
+/// `Service` implementation for http/2 transport
+pub struct H2ServiceHandler<T, S, B>
+where
+    S: Service<Request>,
+{
+    flow: Rc<RefCell<HttpFlow<S, (), ()>>>,
+    cfg: ServiceConfig,
+    on_connect_ext: Option<Rc<ConnectCallback<T>>>,
+    _phantom: PhantomData<B>,
+}
+
+impl<T, S, B> H2ServiceHandler<T, S, B>
+where
+    S: Service<Request>,
+    S::Error: Into<Error> + 'static,
+    S::Future: 'static,
+    S::Response: Into<Response<B>> + 'static,
+    B: MessageBody + 'static,
+{
+    fn new(
+        cfg: ServiceConfig,
+        on_connect_ext: Option<Rc<ConnectCallback<T>>>,
+        service: S,
+    ) -> H2ServiceHandler<T, S, B> {
+        H2ServiceHandler {
+            flow: HttpFlow::new(service, (), None),
+            cfg,
+            on_connect_ext,
+            _phantom: PhantomData,
+        }
+    }
+}
+
+impl<T, S, B> Service<(T, Option<net::SocketAddr>)> for H2ServiceHandler<T, S, B>
+where
+    T: AsyncRead + AsyncWrite + Unpin,
+    S: Service<Request>,
+    S::Error: Into<Error> + 'static,
+    S::Future: 'static,
+    S::Response: Into<Response<B>> + 'static,
+    B: MessageBody + 'static,
+{
+    type Response = ();
+    type Error = DispatchError;
+    type Future = H2ServiceHandlerResponse<T, S, B>;
+
+    fn poll_ready(&mut self, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
+        self.flow.borrow_mut().service.poll_ready(cx).map_err(|e| {
+            let e = e.into();
+            error!("Service readiness error: {:?}", e);
+            DispatchError::Service(e)
+        })
+    }
+
+    fn call(&mut self, (io, addr): (T, Option<net::SocketAddr>)) -> Self::Future {
+        let on_connect_data =
+            OnConnectData::from_io(&io, self.on_connect_ext.as_deref());
+
+        H2ServiceHandlerResponse {
+            state: State::Handshake(
+                Some(self.flow.clone()),
+                Some(self.cfg.clone()),
+                addr,
+                on_connect_data,
+                server::handshake(io),
+            ),
+        }
+    }
+}
+
+enum State<T, S: Service<Request>, B: MessageBody>
+where
+    T: AsyncRead + AsyncWrite + Unpin,
+    S::Future: 'static,
+{
+    Incoming(Dispatcher<T, S, B, (), ()>),
+    Handshake(
+        Option<Rc<RefCell<HttpFlow<S, (), ()>>>>,
+        Option<ServiceConfig>,
+        Option<net::SocketAddr>,
+        OnConnectData,
+        Handshake<T, Bytes>,
+    ),
+}
+
+pub struct H2ServiceHandlerResponse<T, S, B>
+where
+    T: AsyncRead + AsyncWrite + Unpin,
+    S: Service<Request>,
+    S::Error: Into<Error> + 'static,
+    S::Future: 'static,
+    S::Response: Into<Response<B>> + 'static,
+    B: MessageBody + 'static,
+{
+    state: State<T, S, B>,
+}
+
+impl<T, S, B> Future for H2ServiceHandlerResponse<T, S, B>
+where
+    T: AsyncRead + AsyncWrite + Unpin,
+    S: Service<Request>,
+    S::Error: Into<Error> + 'static,
+    S::Future: 'static,
+    S::Response: Into<Response<B>> + 'static,
+    B: MessageBody,
+{
+    type Output = Result<(), DispatchError>;
+
+    fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
+        match self.state {
+            State::Incoming(ref mut disp) => Pin::new(disp).poll(cx),
+            State::Handshake(
+                ref mut srv,
+                ref mut config,
+                ref peer_addr,
+                ref mut on_connect_data,
+                ref mut handshake,
+            ) => match ready!(Pin::new(handshake).poll(cx)) {
+                Ok(conn) => {
+                    let on_connect_data = std::mem::take(on_connect_data);
+                    self.state = State::Incoming(Dispatcher::new(
+                        srv.take().unwrap(),
+                        conn,
+                        on_connect_data,
+                        config.take().unwrap(),
+                        None,
+                        *peer_addr,
+                    ));
+                    self.poll(cx)
+                }
+                Err(err) => {
+                    trace!("H2 handshake error: {}", err);
+                    Poll::Ready(Err(err.into()))
+                }
+            },
+        }
+    }
+}

actix-http/src/header/common/accept.rs

@@ -0,0 +1,287 @@
+use std::cmp::Ordering;
+
+use mime::Mime;
+
+use crate::header::{qitem, QualityItem};
+use crate::http::header;
+
+header! {
+    /// `Accept` header, defined in [RFC7231](http://tools.ietf.org/html/rfc7231#section-5.3.2)
+    ///
+    /// The `Accept` header field can be used by user agents to specify
+    /// response media types that are acceptable. Accept header fields can
+    /// be used to indicate that the request is specifically limited to a
+    /// small set of desired types, as in the case of a request for an
+    /// in-line image
+    ///
+    /// # ABNF
+    ///
+    /// ```text
+    /// Accept = #( media-range [ accept-params ] )
+    ///
+    /// media-range    = ( "*/*"
+    ///                  / ( type "/" "*" )
+    ///                  / ( type "/" subtype )
+    ///                  ) *( OWS ";" OWS parameter )
+    /// accept-params  = weight *( accept-ext )
+    /// accept-ext = OWS ";" OWS token [ "=" ( token / quoted-string ) ]
+    /// ```
+    ///
+    /// # Example values
+    /// * `audio/*; q=0.2, audio/basic`
+    /// * `text/plain; q=0.5, text/html, text/x-dvi; q=0.8, text/x-c`
+    ///
+    /// # Examples
+    /// ```rust
+    /// # extern crate actix_http;
+    /// extern crate mime;
+    /// use actix_http::Response;
+    /// use actix_http::http::header::{Accept, qitem};
+    ///
+    /// # fn main() {
+    /// let mut builder = Response::Ok();
+    ///
+    /// builder.set(
+    ///     Accept(vec![
+    ///         qitem(mime::TEXT_HTML),
+    ///     ])
+    /// );
+    /// # }
+    /// ```
+    ///
+    /// ```rust
+    /// # extern crate actix_http;
+    /// extern crate mime;
+    /// use actix_http::Response;
+    /// use actix_http::http::header::{Accept, qitem};
+    ///
+    /// # fn main() {
+    /// let mut builder = Response::Ok();
+    ///
+    /// builder.set(
+    ///     Accept(vec![
+    ///         qitem(mime::APPLICATION_JSON),
+    ///     ])
+    /// );
+    /// # }
+    /// ```
+    ///
+    /// ```rust
+    /// # extern crate actix_http;
+    /// extern crate mime;
+    /// use actix_http::Response;
+    /// use actix_http::http::header::{Accept, QualityItem, q, qitem};
+    ///
+    /// # fn main() {
+    /// let mut builder = Response::Ok();
+    ///
+    /// builder.set(
+    ///     Accept(vec![
+    ///         qitem(mime::TEXT_HTML),
+    ///         qitem("application/xhtml+xml".parse().unwrap()),
+    ///         QualityItem::new(
+    ///             mime::TEXT_XML,
+    ///             q(900)
+    ///         ),
+    ///         qitem("image/webp".parse().unwrap()),
+    ///         QualityItem::new(
+    ///             mime::STAR_STAR,
+    ///             q(800)
+    ///         ),
+    ///     ])
+    /// );
+    /// # }
+    /// ```
+    (Accept, header::ACCEPT) => (QualityItem<Mime>)+
+
+    test_accept {
+        // Tests from the RFC
+         test_header!(
+            test1,
+            vec![b"audio/*; q=0.2, audio/basic"],
+            Some(Accept(vec![
+                QualityItem::new("audio/*".parse().unwrap(), q(200)),
+                qitem("audio/basic".parse().unwrap()),
+                ])));
+        test_header!(
+            test2,
+            vec![b"text/plain; q=0.5, text/html, text/x-dvi; q=0.8, text/x-c"],
+            Some(Accept(vec![
+                QualityItem::new(mime::TEXT_PLAIN, q(500)),
+                qitem(mime::TEXT_HTML),
+                QualityItem::new(
+                    "text/x-dvi".parse().unwrap(),
+                    q(800)),
+                qitem("text/x-c".parse().unwrap()),
+                ])));
+        // Custom tests
+        test_header!(
+            test3,
+            vec![b"text/plain; charset=utf-8"],
+            Some(Accept(vec![
+                qitem(mime::TEXT_PLAIN_UTF_8),
+                ])));
+        test_header!(
+            test4,
+            vec![b"text/plain; charset=utf-8; q=0.5"],
+            Some(Accept(vec![
+                QualityItem::new(mime::TEXT_PLAIN_UTF_8,
+                    q(500)),
+            ])));
+
+        #[test]
+        fn test_fuzzing1() {
+            use crate::test::TestRequest;
+            let req = TestRequest::with_header(crate::header::ACCEPT, "chunk#;e").finish();
+            let header = Accept::parse(&req);
+            assert!(header.is_ok());
+        }
+    }
+}
+
+impl Accept {
+    /// Construct `Accept: */*`.
+    pub fn star() -> Accept {
+        Accept(vec![qitem(mime::STAR_STAR)])
+    }
+
+    /// Construct `Accept: application/json`.
+    pub fn json() -> Accept {
+        Accept(vec![qitem(mime::APPLICATION_JSON)])
+    }
+
+    /// Construct `Accept: text/*`.
+    pub fn text() -> Accept {
+        Accept(vec![qitem(mime::TEXT_STAR)])
+    }
+
+    /// Construct `Accept: image/*`.
+    pub fn image() -> Accept {
+        Accept(vec![qitem(mime::IMAGE_STAR)])
+    }
+
+    /// Construct `Accept: text/html`.
+    pub fn html() -> Accept {
+        Accept(vec![qitem(mime::TEXT_HTML)])
+    }
+
+    /// Returns a sorted list of mime types from highest to lowest preference, accounting for
+    /// [q-factor weighting] and specificity.
+    ///
+    /// [q-factor weighting]: https://tools.ietf.org/html/rfc7231#section-5.3.2
+    pub fn mime_precedence(&self) -> Vec<Mime> {
+        let mut types = self.0.clone();
+
+        // use stable sort so items with equal q-factor and specificity retain listed order
+        types.sort_by(|a, b| {
+            // sort by q-factor descending
+            b.quality.cmp(&a.quality).then_with(|| {
+                // use specificity rules on mime types with
+                // same q-factor (eg. text/html > text/* > */*)
+
+                // subtypes are not comparable if main type is star, so return
+                match (a.item.type_(), b.item.type_()) {
+                    (mime::STAR, mime::STAR) => return Ordering::Equal,
+
+                    // a is sorted after b
+                    (mime::STAR, _) => return Ordering::Greater,
+
+                    // a is sorted before b
+                    (_, mime::STAR) => return Ordering::Less,
+
+                    _ => {}
+                }
+
+                // in both these match expressions, the returned ordering appears
+                // inverted because sort is high-to-low ("descending") precedence
+                match (a.item.subtype(), b.item.subtype()) {
+                    (mime::STAR, mime::STAR) => Ordering::Equal,
+
+                    // a is sorted after b
+                    (mime::STAR, _) => Ordering::Greater,
+
+                    // a is sorted before b
+                    (_, mime::STAR) => Ordering::Less,
+
+                    _ => Ordering::Equal,
+                }
+            })
+        });
+
+        types.into_iter().map(|qitem| qitem.item).collect()
+    }
+
+    /// Extracts the most preferable mime type, accounting for [q-factor weighting].
+    ///
+    /// If no q-factors are provided, the first mime type is chosen. Note that items without
+    /// q-factors are given the maximum preference value.
+    ///
+    /// Returns `None` if contained list is empty.
+    ///
+    /// [q-factor weighting]: https://tools.ietf.org/html/rfc7231#section-5.3.2
+    pub fn mime_preference(&self) -> Option<Mime> {
+        let types = self.mime_precedence();
+        types.first().cloned()
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use crate::header::q;
+
+    #[test]
+    fn test_mime_precedence() {
+        let test = Accept(vec![]);
+        assert!(test.mime_precedence().is_empty());
+
+        let test = Accept(vec![qitem(mime::APPLICATION_JSON)]);
+        assert_eq!(test.mime_precedence(), vec!(mime::APPLICATION_JSON));
+
+        let test = Accept(vec![
+            qitem(mime::TEXT_HTML),
+            "application/xhtml+xml".parse().unwrap(),
+            QualityItem::new("application/xml".parse().unwrap(), q(0.9)),
+            QualityItem::new(mime::STAR_STAR, q(0.8)),
+        ]);
+        assert_eq!(
+            test.mime_precedence(),
+            vec![
+                mime::TEXT_HTML,
+                "application/xhtml+xml".parse().unwrap(),
+                "application/xml".parse().unwrap(),
+                mime::STAR_STAR,
+            ]
+        );
+
+        let test = Accept(vec![
+            qitem(mime::STAR_STAR),
+            qitem(mime::IMAGE_STAR),
+            qitem(mime::IMAGE_PNG),
+        ]);
+        assert_eq!(
+            test.mime_precedence(),
+            vec![mime::IMAGE_PNG, mime::IMAGE_STAR, mime::STAR_STAR]
+        );
+    }
+
+    #[test]
+    fn test_mime_preference() {
+        let test = Accept(vec![
+            qitem(mime::TEXT_HTML),
+            "application/xhtml+xml".parse().unwrap(),
+            QualityItem::new("application/xml".parse().unwrap(), q(0.9)),
+            QualityItem::new(mime::STAR_STAR, q(0.8)),
+        ]);
+        assert_eq!(test.mime_preference(), Some(mime::TEXT_HTML));
+
+        let test = Accept(vec![
+            QualityItem::new("video/*".parse().unwrap(), q(0.8)),
+            qitem(mime::IMAGE_PNG),
+            QualityItem::new(mime::STAR_STAR, q(0.5)),
+            qitem(mime::IMAGE_SVG),
+            QualityItem::new(mime::IMAGE_STAR, q(0.8)),
+        ]);
+        assert_eq!(test.mime_preference(), Some(mime::IMAGE_PNG));
+    }
+}

actix-http/src/header/common/accept_charset.rs

@@ -1,4 +1,4 @@
-use header::{Charset, QualityItem, ACCEPT_CHARSET};
+use crate::header::{Charset, QualityItem, ACCEPT_CHARSET};
 
 header! {
     /// `Accept-Charset` header, defined in
@@ -22,24 +22,24 @@ header! {
     ///
     /// # Examples
     /// ```rust
-    /// # extern crate actix_web;
-    /// use actix_web::HttpResponse;
-    /// use actix_web::http::header::{AcceptCharset, Charset, qitem};
+    /// # extern crate actix_http;
+    /// use actix_http::Response;
+    /// use actix_http::http::header::{AcceptCharset, Charset, qitem};
     ///
     /// # fn main() {
-    /// let mut builder = HttpResponse::Ok();
+    /// let mut builder = Response::Ok();
     /// builder.set(
     ///     AcceptCharset(vec![qitem(Charset::Us_Ascii)])
     /// );
     /// # }
     /// ```
     /// ```rust
-    /// # extern crate actix_web;
-    /// use actix_web::HttpResponse;
-    /// use actix_web::http::header::{AcceptCharset, Charset, q, QualityItem};
+    /// # extern crate actix_http;
+    /// use actix_http::Response;
+    /// use actix_http::http::header::{AcceptCharset, Charset, q, QualityItem};
     ///
     /// # fn main() {
-    /// let mut builder = HttpResponse::Ok();
+    /// let mut builder = Response::Ok();
     /// builder.set(
     ///     AcceptCharset(vec![
     ///         QualityItem::new(Charset::Us_Ascii, q(900)),
@@ -49,12 +49,12 @@ header! {
     /// # }
     /// ```
     /// ```rust
-    /// # extern crate actix_web;
-    /// use actix_web::HttpResponse;
-    /// use actix_web::http::header::{AcceptCharset, Charset, qitem};
+    /// # extern crate actix_http;
+    /// use actix_http::Response;
+    /// use actix_http::http::header::{AcceptCharset, Charset, qitem};
     ///
     /// # fn main() {
-    /// let mut builder = HttpResponse::Ok();
+    /// let mut builder = Response::Ok();
     /// builder.set(
     ///     AcceptCharset(vec![qitem(Charset::Ext("utf-8".to_owned()))])
     /// );
@@ -63,7 +63,7 @@ header! {
     (AcceptCharset, ACCEPT_CHARSET) => (QualityItem<Charset>)+
 
     test_accept_charset {
-        /// Test case from RFC
+        // Test case from RFC
         test_header!(test1, vec![b"iso-8859-5, unicode-1-1;q=0.8"]);
     }
 }

actix-http/src/header/common/accept_language.rs

@@ -1,4 +1,4 @@
-use header::{QualityItem, ACCEPT_LANGUAGE};
+use crate::header::{QualityItem, ACCEPT_LANGUAGE};
 use language_tags::LanguageTag;
 
 header! {
@@ -23,13 +23,13 @@ header! {
     /// # Examples
     ///
     /// ```rust
-    /// # extern crate actix_web;
+    /// # extern crate actix_http;
     /// # extern crate language_tags;
-    /// use actix_web::HttpResponse;
-    /// use actix_web::http::header::{AcceptLanguage, LanguageTag, qitem};
+    /// use actix_http::Response;
+    /// use actix_http::http::header::{AcceptLanguage, LanguageTag, qitem};
     ///
     /// # fn main() {
-    /// let mut builder = HttpResponse::Ok();
+    /// let mut builder = Response::Ok();
     /// let mut langtag: LanguageTag = Default::default();
     /// langtag.language = Some("en".to_owned());
     /// langtag.region = Some("US".to_owned());
@@ -42,13 +42,13 @@ header! {
     /// ```
     ///
     /// ```rust
-    /// # extern crate actix_web;
+    /// # extern crate actix_http;
     /// # #[macro_use] extern crate language_tags;
-    /// use actix_web::HttpResponse;
-    /// use actix_web::http::header::{AcceptLanguage, QualityItem, q, qitem};
+    /// use actix_http::Response;
+    /// use actix_http::http::header::{AcceptLanguage, QualityItem, q, qitem};
     /// #
     /// # fn main() {
-    /// let mut builder = HttpResponse::Ok();
+    /// let mut builder = Response::Ok();
     /// builder.set(
     ///     AcceptLanguage(vec![
     ///         qitem(langtag!(da)),

actix-http/src/header/common/allow.rs

@@ -1,5 +1,5 @@
-use http::Method;
 use http::header;
+use http::Method;
 
 header! {
     /// `Allow` header, defined in [RFC7231](http://tools.ietf.org/html/rfc7231#section-7.4.1)
@@ -24,13 +24,13 @@ header! {
     ///
     /// ```rust
     /// # extern crate http;
-    /// # extern crate actix_web;
-    /// use actix_web::HttpResponse;
-    /// use actix_web::http::header::Allow;
+    /// # extern crate actix_http;
+    /// use actix_http::Response;
+    /// use actix_http::http::header::Allow;
     /// use http::Method;
     ///
     /// # fn main() {
-    /// let mut builder = HttpResponse::Ok();
+    /// let mut builder = Response::Ok();
     /// builder.set(
     ///     Allow(vec![Method::GET])
     /// );
@@ -39,13 +39,13 @@ header! {
     ///
     /// ```rust
     /// # extern crate http;
-    /// # extern crate actix_web;
-    /// use actix_web::HttpResponse;
-    /// use actix_web::http::header::Allow;
+    /// # extern crate actix_http;
+    /// use actix_http::Response;
+    /// use actix_http::http::header::Allow;
     /// use http::Method;
     ///
     /// # fn main() {
-    /// let mut builder = HttpResponse::Ok();
+    /// let mut builder = Response::Ok();
     /// builder.set(
     ///     Allow(vec![
     ///         Method::GET,

actix-http/src/header/common/cache_control.rs

@@ -1,9 +1,12 @@
-use header::{Header, IntoHeaderValue, Writer};
-use header::{fmt_comma_delimited, from_comma_delimited};
-use http::header;
 use std::fmt::{self, Write};
 use std::str::FromStr;
 
+use http::header;
+
+use crate::header::{
+    fmt_comma_delimited, from_comma_delimited, Header, IntoHeaderValue, Writer,
+};
+
 /// `Cache-Control` header, defined in [RFC7234](https://tools.ietf.org/html/rfc7234#section-5.2)
 ///
 /// The `Cache-Control` header field is used to specify directives for
@@ -26,18 +29,18 @@ use std::str::FromStr;
 ///
 /// # Examples
 /// ```rust
-/// use actix_web::HttpResponse;
-/// use actix_web::http::header::{CacheControl, CacheDirective};
+/// use actix_http::Response;
+/// use actix_http::http::header::{CacheControl, CacheDirective};
 ///
-/// let mut builder = HttpResponse::Ok();
+/// let mut builder = Response::Ok();
 /// builder.set(CacheControl(vec![CacheDirective::MaxAge(86400u32)]));
 /// ```
 ///
 /// ```rust
-/// use actix_web::HttpResponse;
-/// use actix_web::http::header::{CacheControl, CacheDirective};
+/// use actix_http::Response;
+/// use actix_http::http::header::{CacheControl, CacheDirective};
 ///
-/// let mut builder = HttpResponse::Ok();
+/// let mut builder = Response::Ok();
 /// builder.set(CacheControl(vec![
 ///     CacheDirective::NoCache,
 ///     CacheDirective::Private,
@@ -57,32 +60,32 @@ impl Header for CacheControl {
     }
 
     #[inline]
-    fn parse<T>(msg: &T) -> Result<Self, ::error::ParseError>
+    fn parse<T>(msg: &T) -> Result<Self, crate::error::ParseError>
     where
-        T: ::HttpMessage,
+        T: crate::HttpMessage,
     {
-        let directives = from_comma_delimited(msg.headers().get_all(Self::name()))?;
+        let directives = from_comma_delimited(msg.headers().get_all(&Self::name()))?;
         if !directives.is_empty() {
             Ok(CacheControl(directives))
         } else {
-            Err(::error::ParseError::Header)
+            Err(crate::error::ParseError::Header)
         }
     }
 }
 
 impl fmt::Display for CacheControl {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         fmt_comma_delimited(f, &self[..])
     }
 }
 
 impl IntoHeaderValue for CacheControl {
-    type Error = header::InvalidHeaderValueBytes;
+    type Error = header::InvalidHeaderValue;
 
     fn try_into(self) -> Result<header::HeaderValue, Self::Error> {
         let mut writer = Writer::new();
         let _ = write!(&mut writer, "{}", self);
-        header::HeaderValue::from_shared(writer.take())
+        header::HeaderValue::from_maybe_shared(writer.take())
     }
 }
 
@@ -123,7 +126,7 @@ pub enum CacheDirective {
 }
 
 impl fmt::Display for CacheDirective {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         use self::CacheDirective::*;
         fmt::Display::fmt(
             match *self {
@@ -144,7 +147,7 @@ impl fmt::Display for CacheDirective {
 
                 Extension(ref name, None) => &name[..],
                 Extension(ref name, Some(ref arg)) => {
-                    return write!(f, "{}={}", name, arg)
+                    return write!(f, "{}={}", name, arg);
                 }
             },
             f,
@@ -188,8 +191,8 @@ impl FromStr for CacheDirective {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use header::Header;
-    use test::TestRequest;
+    use crate::header::Header;
+    use crate::test::TestRequest;
 
     #[test]
     fn test_parse_multiple_headers() {

actix-http/src/header/common/content_disposition.rs

@@ -0,0 +1,987 @@
+// # References
+//
+// "The Content-Disposition Header Field" https://www.ietf.org/rfc/rfc2183.txt
+// "The Content-Disposition Header Field in the Hypertext Transfer Protocol (HTTP)" https://www.ietf.org/rfc/rfc6266.txt
+// "Returning Values from Forms: multipart/form-data" https://www.ietf.org/rfc/rfc7578.txt
+// Browser conformance tests at: http://greenbytes.de/tech/tc2231/
+// IANA assignment: http://www.iana.org/assignments/cont-disp/cont-disp.xhtml
+
+use lazy_static::lazy_static;
+use regex::Regex;
+use std::fmt::{self, Write};
+
+use crate::header::{self, ExtendedValue, Header, IntoHeaderValue, Writer};
+
+/// Split at the index of the first `needle` if it exists or at the end.
+fn split_once(haystack: &str, needle: char) -> (&str, &str) {
+    haystack.find(needle).map_or_else(
+        || (haystack, ""),
+        |sc| {
+            let (first, last) = haystack.split_at(sc);
+            (first, last.split_at(1).1)
+        },
+    )
+}
+
+/// Split at the index of the first `needle` if it exists or at the end, trim the right of the
+/// first part and the left of the last part.
+fn split_once_and_trim(haystack: &str, needle: char) -> (&str, &str) {
+    let (first, last) = split_once(haystack, needle);
+    (first.trim_end(), last.trim_start())
+}
+
+/// The implied disposition of the content of the HTTP body.
+#[derive(Clone, Debug, PartialEq)]
+pub enum DispositionType {
+    /// Inline implies default processing
+    Inline,
+    /// Attachment implies that the recipient should prompt the user to save the response locally,
+    /// rather than process it normally (as per its media type).
+    Attachment,
+    /// Used in *multipart/form-data* as defined in
+    /// [RFC7578](https://tools.ietf.org/html/rfc7578) to carry the field name and the file name.
+    FormData,
+    /// Extension type. Should be handled by recipients the same way as Attachment
+    Ext(String),
+}
+
+impl<'a> From<&'a str> for DispositionType {
+    fn from(origin: &'a str) -> DispositionType {
+        if origin.eq_ignore_ascii_case("inline") {
+            DispositionType::Inline
+        } else if origin.eq_ignore_ascii_case("attachment") {
+            DispositionType::Attachment
+        } else if origin.eq_ignore_ascii_case("form-data") {
+            DispositionType::FormData
+        } else {
+            DispositionType::Ext(origin.to_owned())
+        }
+    }
+}
+
+/// Parameter in [`ContentDisposition`].
+///
+/// # Examples
+/// ```
+/// use actix_http::http::header::DispositionParam;
+///
+/// let param = DispositionParam::Filename(String::from("sample.txt"));
+/// assert!(param.is_filename());
+/// assert_eq!(param.as_filename().unwrap(), "sample.txt");
+/// ```
+#[derive(Clone, Debug, PartialEq)]
+#[allow(clippy::large_enum_variant)]
+pub enum DispositionParam {
+    /// For [`DispositionType::FormData`] (i.e. *multipart/form-data*), the name of an field from
+    /// the form.
+    Name(String),
+    /// A plain file name.
+    ///
+    /// It is [not supposed](https://tools.ietf.org/html/rfc6266#appendix-D) to contain any
+    /// non-ASCII characters when used in a *Content-Disposition* HTTP response header, where
+    /// [`FilenameExt`](DispositionParam::FilenameExt) with charset UTF-8 may be used instead
+    /// in case there are Unicode characters in file names.
+    Filename(String),
+    /// An extended file name. It must not exist for `ContentType::Formdata` according to
+    /// [RFC7578 Section 4.2](https://tools.ietf.org/html/rfc7578#section-4.2).
+    FilenameExt(ExtendedValue),
+    /// An unrecognized regular parameter as defined in
+    /// [RFC5987](https://tools.ietf.org/html/rfc5987) as *reg-parameter*, in
+    /// [RFC6266](https://tools.ietf.org/html/rfc6266) as *token "=" value*. Recipients should
+    /// ignore unrecognizable parameters.
+    Unknown(String, String),
+    /// An unrecognized extended parameter as defined in
+    /// [RFC5987](https://tools.ietf.org/html/rfc5987) as *ext-parameter*, in
+    /// [RFC6266](https://tools.ietf.org/html/rfc6266) as *ext-token "=" ext-value*. The single
+    /// trailing asterisk is not included. Recipients should ignore unrecognizable parameters.
+    UnknownExt(String, ExtendedValue),
+}
+
+impl DispositionParam {
+    /// Returns `true` if the parameter is [`Name`](DispositionParam::Name).
+    #[inline]
+    pub fn is_name(&self) -> bool {
+        self.as_name().is_some()
+    }
+
+    /// Returns `true` if the parameter is [`Filename`](DispositionParam::Filename).
+    #[inline]
+    pub fn is_filename(&self) -> bool {
+        self.as_filename().is_some()
+    }
+
+    /// Returns `true` if the parameter is [`FilenameExt`](DispositionParam::FilenameExt).
+    #[inline]
+    pub fn is_filename_ext(&self) -> bool {
+        self.as_filename_ext().is_some()
+    }
+
+    /// Returns `true` if the parameter is [`Unknown`](DispositionParam::Unknown) and the `name`
+    #[inline]
+    /// matches.
+    pub fn is_unknown<T: AsRef<str>>(&self, name: T) -> bool {
+        self.as_unknown(name).is_some()
+    }
+
+    /// Returns `true` if the parameter is [`UnknownExt`](DispositionParam::UnknownExt) and the
+    /// `name` matches.
+    #[inline]
+    pub fn is_unknown_ext<T: AsRef<str>>(&self, name: T) -> bool {
+        self.as_unknown_ext(name).is_some()
+    }
+
+    /// Returns the name if applicable.
+    #[inline]
+    pub fn as_name(&self) -> Option<&str> {
+        match self {
+            DispositionParam::Name(ref name) => Some(name.as_str()),
+            _ => None,
+        }
+    }
+
+    /// Returns the filename if applicable.
+    #[inline]
+    pub fn as_filename(&self) -> Option<&str> {
+        match self {
+            DispositionParam::Filename(ref filename) => Some(filename.as_str()),
+            _ => None,
+        }
+    }
+
+    /// Returns the filename* if applicable.
+    #[inline]
+    pub fn as_filename_ext(&self) -> Option<&ExtendedValue> {
+        match self {
+            DispositionParam::FilenameExt(ref value) => Some(value),
+            _ => None,
+        }
+    }
+
+    /// Returns the value of the unrecognized regular parameter if it is
+    /// [`Unknown`](DispositionParam::Unknown) and the `name` matches.
+    #[inline]
+    pub fn as_unknown<T: AsRef<str>>(&self, name: T) -> Option<&str> {
+        match self {
+            DispositionParam::Unknown(ref ext_name, ref value)
+                if ext_name.eq_ignore_ascii_case(name.as_ref()) =>
+            {
+                Some(value.as_str())
+            }
+            _ => None,
+        }
+    }
+
+    /// Returns the value of the unrecognized extended parameter if it is
+    /// [`Unknown`](DispositionParam::Unknown) and the `name` matches.
+    #[inline]
+    pub fn as_unknown_ext<T: AsRef<str>>(&self, name: T) -> Option<&ExtendedValue> {
+        match self {
+            DispositionParam::UnknownExt(ref ext_name, ref value)
+                if ext_name.eq_ignore_ascii_case(name.as_ref()) =>
+            {
+                Some(value)
+            }
+            _ => None,
+        }
+    }
+}
+
+/// A *Content-Disposition* header. It is compatible to be used either as
+/// [a response header for the main body](https://mdn.io/Content-Disposition#As_a_response_header_for_the_main_body)
+/// as (re)defined in [RFC6266](https://tools.ietf.org/html/rfc6266), or as
+/// [a header for a multipart body](https://mdn.io/Content-Disposition#As_a_header_for_a_multipart_body)
+/// as (re)defined in [RFC7587](https://tools.ietf.org/html/rfc7578).
+///
+/// In a regular HTTP response, the *Content-Disposition* response header is a header indicating if
+/// the content is expected to be displayed *inline* in the browser, that is, as a Web page or as
+/// part of a Web page, or as an attachment, that is downloaded and saved locally, and also can be
+/// used to attach additional metadata, such as the filename to use when saving the response payload
+/// locally.
+///
+/// In a *multipart/form-data* body, the HTTP *Content-Disposition* general header is a header that
+/// can be used on the subpart of a multipart body to give information about the field it applies to.
+/// The subpart is delimited by the boundary defined in the *Content-Type* header. Used on the body
+/// itself, *Content-Disposition* has no effect.
+///
+/// # ABNF
+
+/// ```text
+/// content-disposition = "Content-Disposition" ":"
+///                       disposition-type *( ";" disposition-parm )
+///
+/// disposition-type    = "inline" | "attachment" | disp-ext-type
+///                       ; case-insensitive
+///
+/// disp-ext-type       = token
+///
+/// disposition-parm    = filename-parm | disp-ext-parm
+///
+/// filename-parm       = "filename" "=" value
+///                     | "filename*" "=" ext-value
+///
+/// disp-ext-parm       = token "=" value
+///                     | ext-token "=" ext-value
+///
+/// ext-token           = <the characters in token, followed by "*">
+/// ```
+///
+/// # Note
+///
+/// filename is [not supposed](https://tools.ietf.org/html/rfc6266#appendix-D) to contain any
+/// non-ASCII characters when used in a *Content-Disposition* HTTP response header, where
+/// filename* with charset UTF-8 may be used instead in case there are Unicode characters in file
+/// names.
+/// filename is [acceptable](https://tools.ietf.org/html/rfc7578#section-4.2) to be UTF-8 encoded
+/// directly in a *Content-Disposition* header for *multipart/form-data*, though.
+///
+/// filename* [must not](https://tools.ietf.org/html/rfc7578#section-4.2) be used within
+/// *multipart/form-data*.
+///
+/// # Example
+///
+/// ```
+/// use actix_http::http::header::{
+///     Charset, ContentDisposition, DispositionParam, DispositionType,
+///     ExtendedValue,
+/// };
+///
+/// let cd1 = ContentDisposition {
+///     disposition: DispositionType::Attachment,
+///     parameters: vec![DispositionParam::FilenameExt(ExtendedValue {
+///         charset: Charset::Iso_8859_1, // The character set for the bytes of the filename
+///         language_tag: None, // The optional language tag (see `language-tag` crate)
+///         value: b"\xa9 Copyright 1989.txt".to_vec(), // the actual bytes of the filename
+///     })],
+/// };
+/// assert!(cd1.is_attachment());
+/// assert!(cd1.get_filename_ext().is_some());
+///
+/// let cd2 = ContentDisposition {
+///     disposition: DispositionType::FormData,
+///     parameters: vec![
+///         DispositionParam::Name(String::from("file")),
+///         DispositionParam::Filename(String::from("bill.odt")),
+///     ],
+/// };
+/// assert_eq!(cd2.get_name(), Some("file")); // field name
+/// assert_eq!(cd2.get_filename(), Some("bill.odt"));
+///
+/// // HTTP response header with Unicode characters in file names
+/// let cd3 = ContentDisposition {
+///     disposition: DispositionType::Attachment,
+///     parameters: vec![
+///         DispositionParam::FilenameExt(ExtendedValue {
+///             charset: Charset::Ext(String::from("UTF-8")),
+///             language_tag: None,
+///             value: String::from("\u{1f600}.svg").into_bytes(),
+///         }),
+///         // fallback for better compatibility
+///         DispositionParam::Filename(String::from("Grinning-Face-Emoji.svg"))
+///     ],
+/// };
+/// assert_eq!(cd3.get_filename_ext().map(|ev| ev.value.as_ref()),
+///            Some("\u{1f600}.svg".as_bytes()));
+/// ```
+///
+/// # Security Note
+///
+/// If "filename" parameter is supplied, do not use the file name blindly, check and possibly
+/// change to match local file system conventions if applicable, and do not use directory path
+/// information that may be present. See [RFC2183](https://tools.ietf.org/html/rfc2183#section-2.3).
+#[derive(Clone, Debug, PartialEq)]
+pub struct ContentDisposition {
+    /// The disposition type
+    pub disposition: DispositionType,
+    /// Disposition parameters
+    pub parameters: Vec<DispositionParam>,
+}
+
+impl ContentDisposition {
+    /// Parse a raw Content-Disposition header value.
+    pub fn from_raw(hv: &header::HeaderValue) -> Result<Self, crate::error::ParseError> {
+        // `header::from_one_raw_str` invokes `hv.to_str` which assumes `hv` contains only visible
+        //  ASCII characters. So `hv.as_bytes` is necessary here.
+        let hv = String::from_utf8(hv.as_bytes().to_vec())
+            .map_err(|_| crate::error::ParseError::Header)?;
+        let (disp_type, mut left) = split_once_and_trim(hv.as_str().trim(), ';');
+        if disp_type.is_empty() {
+            return Err(crate::error::ParseError::Header);
+        }
+        let mut cd = ContentDisposition {
+            disposition: disp_type.into(),
+            parameters: Vec::new(),
+        };
+
+        while !left.is_empty() {
+            let (param_name, new_left) = split_once_and_trim(left, '=');
+            if param_name.is_empty() || param_name == "*" || new_left.is_empty() {
+                return Err(crate::error::ParseError::Header);
+            }
+            left = new_left;
+            if let Some(param_name) = param_name.strip_suffix('*') {
+                // extended parameters
+                let (ext_value, new_left) = split_once_and_trim(left, ';');
+                left = new_left;
+                let ext_value = header::parse_extended_value(ext_value)?;
+
+                let param = if param_name.eq_ignore_ascii_case("filename") {
+                    DispositionParam::FilenameExt(ext_value)
+                } else {
+                    DispositionParam::UnknownExt(param_name.to_owned(), ext_value)
+                };
+                cd.parameters.push(param);
+            } else {
+                // regular parameters
+                let value = if left.starts_with('\"') {
+                    // quoted-string: defined in RFC6266 -> RFC2616 Section 3.6
+                    let mut escaping = false;
+                    let mut quoted_string = vec![];
+                    let mut end = None;
+                    // search for closing quote
+                    for (i, &c) in left.as_bytes().iter().skip(1).enumerate() {
+                        if escaping {
+                            escaping = false;
+                            quoted_string.push(c);
+                        } else if c == 0x5c {
+                            // backslash
+                            escaping = true;
+                        } else if c == 0x22 {
+                            // double quote
+                            end = Some(i + 1); // cuz skipped 1 for the leading quote
+                            break;
+                        } else {
+                            quoted_string.push(c);
+                        }
+                    }
+                    left = &left[end.ok_or(crate::error::ParseError::Header)? + 1..];
+                    left = split_once(left, ';').1.trim_start();
+                    // In fact, it should not be Err if the above code is correct.
+                    String::from_utf8(quoted_string)
+                        .map_err(|_| crate::error::ParseError::Header)?
+                } else {
+                    // token: won't contains semicolon according to RFC 2616 Section 2.2
+                    let (token, new_left) = split_once_and_trim(left, ';');
+                    left = new_left;
+                    if token.is_empty() {
+                        // quoted-string can be empty, but token cannot be empty
+                        return Err(crate::error::ParseError::Header);
+                    }
+                    token.to_owned()
+                };
+
+                let param = if param_name.eq_ignore_ascii_case("name") {
+                    DispositionParam::Name(value)
+                } else if param_name.eq_ignore_ascii_case("filename") {
+                    // See also comments in test_from_raw_unnecessary_percent_decode.
+                    DispositionParam::Filename(value)
+                } else {
+                    DispositionParam::Unknown(param_name.to_owned(), value)
+                };
+                cd.parameters.push(param);
+            }
+        }
+
+        Ok(cd)
+    }
+
+    /// Returns `true` if it is [`Inline`](DispositionType::Inline).
+    pub fn is_inline(&self) -> bool {
+        matches!(self.disposition, DispositionType::Inline)
+    }
+
+    /// Returns `true` if it is [`Attachment`](DispositionType::Attachment).
+    pub fn is_attachment(&self) -> bool {
+        matches!(self.disposition, DispositionType::Attachment)
+    }
+
+    /// Returns `true` if it is [`FormData`](DispositionType::FormData).
+    pub fn is_form_data(&self) -> bool {
+        matches!(self.disposition, DispositionType::FormData)
+    }
+
+    /// Returns `true` if it is [`Ext`](DispositionType::Ext) and the `disp_type` matches.
+    pub fn is_ext<T: AsRef<str>>(&self, disp_type: T) -> bool {
+        match self.disposition {
+            DispositionType::Ext(ref t)
+                if t.eq_ignore_ascii_case(disp_type.as_ref()) =>
+            {
+                true
+            }
+            _ => false,
+        }
+    }
+
+    /// Return the value of *name* if exists.
+    pub fn get_name(&self) -> Option<&str> {
+        self.parameters.iter().filter_map(|p| p.as_name()).next()
+    }
+
+    /// Return the value of *filename* if exists.
+    pub fn get_filename(&self) -> Option<&str> {
+        self.parameters
+            .iter()
+            .filter_map(|p| p.as_filename())
+            .next()
+    }
+
+    /// Return the value of *filename\** if exists.
+    pub fn get_filename_ext(&self) -> Option<&ExtendedValue> {
+        self.parameters
+            .iter()
+            .filter_map(|p| p.as_filename_ext())
+            .next()
+    }
+
+    /// Return the value of the parameter which the `name` matches.
+    pub fn get_unknown<T: AsRef<str>>(&self, name: T) -> Option<&str> {
+        let name = name.as_ref();
+        self.parameters
+            .iter()
+            .filter_map(|p| p.as_unknown(name))
+            .next()
+    }
+
+    /// Return the value of the extended parameter which the `name` matches.
+    pub fn get_unknown_ext<T: AsRef<str>>(&self, name: T) -> Option<&ExtendedValue> {
+        let name = name.as_ref();
+        self.parameters
+            .iter()
+            .filter_map(|p| p.as_unknown_ext(name))
+            .next()
+    }
+}
+
+impl IntoHeaderValue for ContentDisposition {
+    type Error = header::InvalidHeaderValue;
+
+    fn try_into(self) -> Result<header::HeaderValue, Self::Error> {
+        let mut writer = Writer::new();
+        let _ = write!(&mut writer, "{}", self);
+        header::HeaderValue::from_maybe_shared(writer.take())
+    }
+}
+
+impl Header for ContentDisposition {
+    fn name() -> header::HeaderName {
+        header::CONTENT_DISPOSITION
+    }
+
+    fn parse<T: crate::HttpMessage>(msg: &T) -> Result<Self, crate::error::ParseError> {
+        if let Some(h) = msg.headers().get(&Self::name()) {
+            Self::from_raw(&h)
+        } else {
+            Err(crate::error::ParseError::Header)
+        }
+    }
+}
+
+impl fmt::Display for DispositionType {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            DispositionType::Inline => write!(f, "inline"),
+            DispositionType::Attachment => write!(f, "attachment"),
+            DispositionType::FormData => write!(f, "form-data"),
+            DispositionType::Ext(ref s) => write!(f, "{}", s),
+        }
+    }
+}
+
+impl fmt::Display for DispositionParam {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        // All ASCII control characters (0-30, 127) including horizontal tab, double quote, and
+        // backslash should be escaped in quoted-string (i.e. "foobar").
+        // Ref: RFC6266 S4.1 -> RFC2616 S3.6
+        // filename-parm  = "filename" "=" value
+        // value          = token | quoted-string
+        // quoted-string  = ( <"> *(qdtext | quoted-pair ) <"> )
+        // qdtext         = <any TEXT except <">>
+        // quoted-pair    = "\" CHAR
+        // TEXT           = <any OCTET except CTLs,
+        //                  but including LWS>
+        // LWS            = [CRLF] 1*( SP | HT )
+        // OCTET          = <any 8-bit sequence of data>
+        // CHAR           = <any US-ASCII character (octets 0 - 127)>
+        // CTL            = <any US-ASCII control character
+        //                  (octets 0 - 31) and DEL (127)>
+        //
+        // Ref: RFC7578 S4.2 -> RFC2183 S2 -> RFC2045 S5.1
+        // parameter := attribute "=" value
+        // attribute := token
+        //              ; Matching of attributes
+        //              ; is ALWAYS case-insensitive.
+        // value := token / quoted-string
+        // token := 1*<any (US-ASCII) CHAR except SPACE, CTLs,
+        //             or tspecials>
+        // tspecials :=  "(" / ")" / "<" / ">" / "@" /
+        //               "," / ";" / ":" / "\" / <">
+        //               "/" / "[" / "]" / "?" / "="
+        //               ; Must be in quoted-string,
+        //               ; to use within parameter values
+        //
+        //
+        // See also comments in test_from_raw_unnecessary_percent_decode.
+        lazy_static! {
+            static ref RE: Regex = Regex::new("[\x00-\x08\x10-\x1F\x7F\"\\\\]").unwrap();
+        }
+        match self {
+            DispositionParam::Name(ref value) => write!(f, "name={}", value),
+            DispositionParam::Filename(ref value) => {
+                write!(f, "filename=\"{}\"", RE.replace_all(value, "\\$0").as_ref())
+            }
+            DispositionParam::Unknown(ref name, ref value) => write!(
+                f,
+                "{}=\"{}\"",
+                name,
+                &RE.replace_all(value, "\\$0").as_ref()
+            ),
+            DispositionParam::FilenameExt(ref ext_value) => {
+                write!(f, "filename*={}", ext_value)
+            }
+            DispositionParam::UnknownExt(ref name, ref ext_value) => {
+                write!(f, "{}*={}", name, ext_value)
+            }
+        }
+    }
+}
+
+impl fmt::Display for ContentDisposition {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(f, "{}", self.disposition)?;
+        self.parameters
+            .iter()
+            .try_for_each(|param| write!(f, "; {}", param))
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::{ContentDisposition, DispositionParam, DispositionType};
+    use crate::header::shared::Charset;
+    use crate::header::{ExtendedValue, HeaderValue};
+
+    #[test]
+    fn test_from_raw_basic() {
+        assert!(ContentDisposition::from_raw(&HeaderValue::from_static("")).is_err());
+
+        let a = HeaderValue::from_static(
+            "form-data; dummy=3; name=upload; filename=\"sample.png\"",
+        );
+        let a: ContentDisposition = ContentDisposition::from_raw(&a).unwrap();
+        let b = ContentDisposition {
+            disposition: DispositionType::FormData,
+            parameters: vec![
+                DispositionParam::Unknown("dummy".to_owned(), "3".to_owned()),
+                DispositionParam::Name("upload".to_owned()),
+                DispositionParam::Filename("sample.png".to_owned()),
+            ],
+        };
+        assert_eq!(a, b);
+
+        let a = HeaderValue::from_static("attachment; filename=\"image.jpg\"");
+        let a: ContentDisposition = ContentDisposition::from_raw(&a).unwrap();
+        let b = ContentDisposition {
+            disposition: DispositionType::Attachment,
+            parameters: vec![DispositionParam::Filename("image.jpg".to_owned())],
+        };
+        assert_eq!(a, b);
+
+        let a = HeaderValue::from_static("inline; filename=image.jpg");
+        let a: ContentDisposition = ContentDisposition::from_raw(&a).unwrap();
+        let b = ContentDisposition {
+            disposition: DispositionType::Inline,
+            parameters: vec![DispositionParam::Filename("image.jpg".to_owned())],
+        };
+        assert_eq!(a, b);
+
+        let a = HeaderValue::from_static(
+            "attachment; creation-date=\"Wed, 12 Feb 1997 16:29:51 -0500\"",
+        );
+        let a: ContentDisposition = ContentDisposition::from_raw(&a).unwrap();
+        let b = ContentDisposition {
+            disposition: DispositionType::Attachment,
+            parameters: vec![DispositionParam::Unknown(
+                String::from("creation-date"),
+                "Wed, 12 Feb 1997 16:29:51 -0500".to_owned(),
+            )],
+        };
+        assert_eq!(a, b);
+    }
+
+    #[test]
+    fn test_from_raw_extended() {
+        let a = HeaderValue::from_static(
+            "attachment; filename*=UTF-8''%c2%a3%20and%20%e2%82%ac%20rates",
+        );
+        let a: ContentDisposition = ContentDisposition::from_raw(&a).unwrap();
+        let b = ContentDisposition {
+            disposition: DispositionType::Attachment,
+            parameters: vec![DispositionParam::FilenameExt(ExtendedValue {
+                charset: Charset::Ext(String::from("UTF-8")),
+                language_tag: None,
+                value: vec![
+                    0xc2, 0xa3, 0x20, b'a', b'n', b'd', 0x20, 0xe2, 0x82, 0xac, 0x20,
+                    b'r', b'a', b't', b'e', b's',
+                ],
+            })],
+        };
+        assert_eq!(a, b);
+
+        let a = HeaderValue::from_static(
+            "attachment; filename*=UTF-8''%c2%a3%20and%20%e2%82%ac%20rates",
+        );
+        let a: ContentDisposition = ContentDisposition::from_raw(&a).unwrap();
+        let b = ContentDisposition {
+            disposition: DispositionType::Attachment,
+            parameters: vec![DispositionParam::FilenameExt(ExtendedValue {
+                charset: Charset::Ext(String::from("UTF-8")),
+                language_tag: None,
+                value: vec![
+                    0xc2, 0xa3, 0x20, b'a', b'n', b'd', 0x20, 0xe2, 0x82, 0xac, 0x20,
+                    b'r', b'a', b't', b'e', b's',
+                ],
+            })],
+        };
+        assert_eq!(a, b);
+    }
+
+    #[test]
+    fn test_from_raw_extra_whitespace() {
+        let a = HeaderValue::from_static(
+            "form-data  ; du-mmy= 3  ; name =upload ; filename =  \"sample.png\"  ; ",
+        );
+        let a: ContentDisposition = ContentDisposition::from_raw(&a).unwrap();
+        let b = ContentDisposition {
+            disposition: DispositionType::FormData,
+            parameters: vec![
+                DispositionParam::Unknown("du-mmy".to_owned(), "3".to_owned()),
+                DispositionParam::Name("upload".to_owned()),
+                DispositionParam::Filename("sample.png".to_owned()),
+            ],
+        };
+        assert_eq!(a, b);
+    }
+
+    #[test]
+    fn test_from_raw_unordered() {
+        let a = HeaderValue::from_static(
+            "form-data; dummy=3; filename=\"sample.png\" ; name=upload;",
+            // Actually, a trailing semicolon is not compliant. But it is fine to accept.
+        );
+        let a: ContentDisposition = ContentDisposition::from_raw(&a).unwrap();
+        let b = ContentDisposition {
+            disposition: DispositionType::FormData,
+            parameters: vec![
+                DispositionParam::Unknown("dummy".to_owned(), "3".to_owned()),
+                DispositionParam::Filename("sample.png".to_owned()),
+                DispositionParam::Name("upload".to_owned()),
+            ],
+        };
+        assert_eq!(a, b);
+
+        let a = HeaderValue::from_str(
+            "attachment; filename*=iso-8859-1''foo-%E4.html; filename=\"foo-ä.html\"",
+        )
+        .unwrap();
+        let a: ContentDisposition = ContentDisposition::from_raw(&a).unwrap();
+        let b = ContentDisposition {
+            disposition: DispositionType::Attachment,
+            parameters: vec![
+                DispositionParam::FilenameExt(ExtendedValue {
+                    charset: Charset::Iso_8859_1,
+                    language_tag: None,
+                    value: b"foo-\xe4.html".to_vec(),
+                }),
+                DispositionParam::Filename("foo-ä.html".to_owned()),
+            ],
+        };
+        assert_eq!(a, b);
+    }
+
+    #[test]
+    fn test_from_raw_only_disp() {
+        let a = ContentDisposition::from_raw(&HeaderValue::from_static("attachment"))
+            .unwrap();
+        let b = ContentDisposition {
+            disposition: DispositionType::Attachment,
+            parameters: vec![],
+        };
+        assert_eq!(a, b);
+
+        let a =
+            ContentDisposition::from_raw(&HeaderValue::from_static("inline ;")).unwrap();
+        let b = ContentDisposition {
+            disposition: DispositionType::Inline,
+            parameters: vec![],
+        };
+        assert_eq!(a, b);
+
+        let a = ContentDisposition::from_raw(&HeaderValue::from_static(
+            "unknown-disp-param",
+        ))
+        .unwrap();
+        let b = ContentDisposition {
+            disposition: DispositionType::Ext(String::from("unknown-disp-param")),
+            parameters: vec![],
+        };
+        assert_eq!(a, b);
+    }
+
+    #[test]
+    fn from_raw_with_mixed_case() {
+        let a = HeaderValue::from_str(
+            "InLInE; fIlenAME*=iso-8859-1''foo-%E4.html; filEName=\"foo-ä.html\"",
+        )
+        .unwrap();
+        let a: ContentDisposition = ContentDisposition::from_raw(&a).unwrap();
+        let b = ContentDisposition {
+            disposition: DispositionType::Inline,
+            parameters: vec![
+                DispositionParam::FilenameExt(ExtendedValue {
+                    charset: Charset::Iso_8859_1,
+                    language_tag: None,
+                    value: b"foo-\xe4.html".to_vec(),
+                }),
+                DispositionParam::Filename("foo-ä.html".to_owned()),
+            ],
+        };
+        assert_eq!(a, b);
+    }
+
+    #[test]
+    fn from_raw_with_unicode() {
+        /* RFC7578 Section 4.2:
+        Some commonly deployed systems use multipart/form-data with file names directly encoded
+        including octets outside the US-ASCII range. The encoding used for the file names is
+        typically UTF-8, although HTML forms will use the charset associated with the form.
+
+        Mainstream browsers like Firefox (gecko) and Chrome use UTF-8 directly as above.
+        (And now, only UTF-8 is handled by this implementation.)
+        */
+        let a = HeaderValue::from_str("form-data; name=upload; filename=\"文件.webp\"")
+            .unwrap();
+        let a: ContentDisposition = ContentDisposition::from_raw(&a).unwrap();
+        let b = ContentDisposition {
+            disposition: DispositionType::FormData,
+            parameters: vec![
+                DispositionParam::Name(String::from("upload")),
+                DispositionParam::Filename(String::from("文件.webp")),
+            ],
+        };
+        assert_eq!(a, b);
+
+        let a = HeaderValue::from_str(
+            "form-data; name=upload; filename=\"余固知謇謇之為患兮，忍而不能舍也.pptx\"",
+        )
+        .unwrap();
+        let a: ContentDisposition = ContentDisposition::from_raw(&a).unwrap();
+        let b = ContentDisposition {
+            disposition: DispositionType::FormData,
+            parameters: vec![
+                DispositionParam::Name(String::from("upload")),
+                DispositionParam::Filename(String::from(
+                    "余固知謇謇之為患兮，忍而不能舍也.pptx",
+                )),
+            ],
+        };
+        assert_eq!(a, b);
+    }
+
+    #[test]
+    fn test_from_raw_escape() {
+        let a = HeaderValue::from_static(
+            "form-data; dummy=3; name=upload; filename=\"s\\amp\\\"le.png\"",
+        );
+        let a: ContentDisposition = ContentDisposition::from_raw(&a).unwrap();
+        let b = ContentDisposition {
+            disposition: DispositionType::FormData,
+            parameters: vec![
+                DispositionParam::Unknown("dummy".to_owned(), "3".to_owned()),
+                DispositionParam::Name("upload".to_owned()),
+                DispositionParam::Filename(
+                    ['s', 'a', 'm', 'p', '\"', 'l', 'e', '.', 'p', 'n', 'g']
+                        .iter()
+                        .collect(),
+                ),
+            ],
+        };
+        assert_eq!(a, b);
+    }
+
+    #[test]
+    fn test_from_raw_semicolon() {
+        let a =
+            HeaderValue::from_static("form-data; filename=\"A semicolon here;.pdf\"");
+        let a: ContentDisposition = ContentDisposition::from_raw(&a).unwrap();
+        let b = ContentDisposition {
+            disposition: DispositionType::FormData,
+            parameters: vec![DispositionParam::Filename(String::from(
+                "A semicolon here;.pdf",
+            ))],
+        };
+        assert_eq!(a, b);
+    }
+
+    #[test]
+    fn test_from_raw_unnecessary_percent_decode() {
+        // In fact, RFC7578 (multipart/form-data) Section 2 and 4.2 suggests that filename with
+        // non-ASCII characters MAY be percent-encoded.
+        // On the contrary, RFC6266 or other RFCs related to Content-Disposition response header
+        // do not mention such percent-encoding.
+        // So, it appears to be undecidable whether to percent-decode or not without
+        // knowing the usage scenario (multipart/form-data v.s. HTTP response header) and
+        // inevitable to unnecessarily percent-decode filename with %XX in the former scenario.
+        // Fortunately, it seems that almost all mainstream browsers just send UTF-8 encoded file
+        // names in quoted-string format (tested on Edge, IE11, Chrome and Firefox) without
+        // percent-encoding. So we do not bother to attempt to percent-decode.
+        let a = HeaderValue::from_static(
+            "form-data; name=photo; filename=\"%74%65%73%74%2e%70%6e%67\"",
+        );
+        let a: ContentDisposition = ContentDisposition::from_raw(&a).unwrap();
+        let b = ContentDisposition {
+            disposition: DispositionType::FormData,
+            parameters: vec![
+                DispositionParam::Name("photo".to_owned()),
+                DispositionParam::Filename(String::from("%74%65%73%74%2e%70%6e%67")),
+            ],
+        };
+        assert_eq!(a, b);
+
+        let a = HeaderValue::from_static(
+            "form-data; name=photo; filename=\"%74%65%73%74.png\"",
+        );
+        let a: ContentDisposition = ContentDisposition::from_raw(&a).unwrap();
+        let b = ContentDisposition {
+            disposition: DispositionType::FormData,
+            parameters: vec![
+                DispositionParam::Name("photo".to_owned()),
+                DispositionParam::Filename(String::from("%74%65%73%74.png")),
+            ],
+        };
+        assert_eq!(a, b);
+    }
+
+    #[test]
+    fn test_from_raw_param_value_missing() {
+        let a = HeaderValue::from_static("form-data; name=upload ; filename=");
+        assert!(ContentDisposition::from_raw(&a).is_err());
+
+        let a = HeaderValue::from_static("attachment; dummy=; filename=invoice.pdf");
+        assert!(ContentDisposition::from_raw(&a).is_err());
+
+        let a = HeaderValue::from_static("inline; filename=  ");
+        assert!(ContentDisposition::from_raw(&a).is_err());
+
+        let a = HeaderValue::from_static("inline; filename=\"\"");
+        assert!(ContentDisposition::from_raw(&a)
+            .expect("parse cd")
+            .get_filename()
+            .expect("filename")
+            .is_empty());
+    }
+
+    #[test]
+    fn test_from_raw_param_name_missing() {
+        let a = HeaderValue::from_static("inline; =\"test.txt\"");
+        assert!(ContentDisposition::from_raw(&a).is_err());
+
+        let a = HeaderValue::from_static("inline; =diary.odt");
+        assert!(ContentDisposition::from_raw(&a).is_err());
+
+        let a = HeaderValue::from_static("inline; =");
+        assert!(ContentDisposition::from_raw(&a).is_err());
+    }
+
+    #[test]
+    fn test_display_extended() {
+        let as_string =
+            "attachment; filename*=UTF-8'en'%C2%A3%20and%20%E2%82%AC%20rates";
+        let a = HeaderValue::from_static(as_string);
+        let a: ContentDisposition = ContentDisposition::from_raw(&a).unwrap();
+        let display_rendered = format!("{}", a);
+        assert_eq!(as_string, display_rendered);
+
+        let a = HeaderValue::from_static("attachment; filename=colourful.csv");
+        let a: ContentDisposition = ContentDisposition::from_raw(&a).unwrap();
+        let display_rendered = format!("{}", a);
+        assert_eq!(
+            "attachment; filename=\"colourful.csv\"".to_owned(),
+            display_rendered
+        );
+    }
+
+    #[test]
+    fn test_display_quote() {
+        let as_string = "form-data; name=upload; filename=\"Quote\\\"here.png\"";
+        as_string
+            .find(['\\', '\"'].iter().collect::<String>().as_str())
+            .unwrap(); // ensure `\"` is there
+        let a = HeaderValue::from_static(as_string);
+        let a: ContentDisposition = ContentDisposition::from_raw(&a).unwrap();
+        let display_rendered = format!("{}", a);
+        assert_eq!(as_string, display_rendered);
+    }
+
+    #[test]
+    fn test_display_space_tab() {
+        let as_string = "form-data; name=upload; filename=\"Space here.png\"";
+        let a = HeaderValue::from_static(as_string);
+        let a: ContentDisposition = ContentDisposition::from_raw(&a).unwrap();
+        let display_rendered = format!("{}", a);
+        assert_eq!(as_string, display_rendered);
+
+        let a: ContentDisposition = ContentDisposition {
+            disposition: DispositionType::Inline,
+            parameters: vec![DispositionParam::Filename(String::from("Tab\there.png"))],
+        };
+        let display_rendered = format!("{}", a);
+        assert_eq!("inline; filename=\"Tab\x09here.png\"", display_rendered);
+    }
+
+    #[test]
+    fn test_display_control_characters() {
+        /* let a = "attachment; filename=\"carriage\rreturn.png\"";
+        let a = HeaderValue::from_static(a);
+        let a: ContentDisposition = ContentDisposition::from_raw(&a).unwrap();
+        let display_rendered = format!("{}", a);
+        assert_eq!(
+            "attachment; filename=\"carriage\\\rreturn.png\"",
+            display_rendered
+        );*/
+        // No way to create a HeaderValue containing a carriage return.
+
+        let a: ContentDisposition = ContentDisposition {
+            disposition: DispositionType::Inline,
+            parameters: vec![DispositionParam::Filename(String::from("bell\x07.png"))],
+        };
+        let display_rendered = format!("{}", a);
+        assert_eq!("inline; filename=\"bell\\\x07.png\"", display_rendered);
+    }
+
+    #[test]
+    fn test_param_methods() {
+        let param = DispositionParam::Filename(String::from("sample.txt"));
+        assert!(param.is_filename());
+        assert_eq!(param.as_filename().unwrap(), "sample.txt");
+
+        let param = DispositionParam::Unknown(String::from("foo"), String::from("bar"));
+        assert!(param.is_unknown("foo"));
+        assert_eq!(param.as_unknown("fOo"), Some("bar"));
+    }
+
+    #[test]
+    fn test_disposition_methods() {
+        let cd = ContentDisposition {
+            disposition: DispositionType::FormData,
+            parameters: vec![
+                DispositionParam::Unknown("dummy".to_owned(), "3".to_owned()),
+                DispositionParam::Name("upload".to_owned()),
+                DispositionParam::Filename("sample.png".to_owned()),
+            ],
+        };
+        assert_eq!(cd.get_name(), Some("upload"));
+        assert_eq!(cd.get_unknown("dummy"), Some("3"));
+        assert_eq!(cd.get_filename(), Some("sample.png"));
+        assert_eq!(cd.get_unknown_ext("dummy"), None);
+        assert_eq!(cd.get_unknown("duMMy"), Some("3"));
+    }
+}

actix-http/src/header/common/content_language.rs

@@ -1,4 +1,4 @@
-use header::{QualityItem, CONTENT_LANGUAGE};
+use crate::header::{QualityItem, CONTENT_LANGUAGE};
 use language_tags::LanguageTag;
 
 header! {
@@ -24,13 +24,13 @@ header! {
     /// # Examples
     ///
     /// ```rust
-    /// # extern crate actix_web;
+    /// # extern crate actix_http;
     /// # #[macro_use] extern crate language_tags;
-    /// use actix_web::HttpResponse;
-    /// # use actix_web::http::header::{ContentLanguage, qitem};
+    /// use actix_http::Response;
+    /// # use actix_http::http::header::{ContentLanguage, qitem};
     /// #
     /// # fn main() {
-    /// let mut builder = HttpResponse::Ok();
+    /// let mut builder = Response::Ok();
     /// builder.set(
     ///     ContentLanguage(vec![
     ///         qitem(langtag!(en)),
@@ -40,14 +40,14 @@ header! {
     /// ```
     ///
     /// ```rust
-    /// # extern crate actix_web;
+    /// # extern crate actix_http;
     /// # #[macro_use] extern crate language_tags;
-    /// use actix_web::HttpResponse;
-    /// # use actix_web::http::header::{ContentLanguage, qitem};
+    /// use actix_http::Response;
+    /// # use actix_http::http::header::{ContentLanguage, qitem};
     /// #
     /// # fn main() {
     ///
-    /// let mut builder = HttpResponse::Ok();
+    /// let mut builder = Response::Ok();
     /// builder.set(
     ///     ContentLanguage(vec![
     ///         qitem(langtag!(da)),

actix-http/src/header/common/content_range.rs

@@ -1,9 +1,11 @@
-use error::ParseError;
-use header::{HeaderValue, IntoHeaderValue, InvalidHeaderValueBytes, Writer,
-             CONTENT_RANGE};
 use std::fmt::{self, Display, Write};
 use std::str::FromStr;
 
+use crate::error::ParseError;
+use crate::header::{
+    HeaderValue, IntoHeaderValue, InvalidHeaderValue, Writer, CONTENT_RANGE,
+};
+
 header! {
     /// `Content-Range` header, defined in
     /// [RFC7233](http://tools.ietf.org/html/rfc7233#section-4.2)
@@ -131,9 +133,7 @@ impl FromStr for ContentRangeSpec {
                 let instance_length = if instance_length == "*" {
                     None
                 } else {
-                    Some(instance_length
-                        .parse()
-                        .map_err(|_| ParseError::Header)?)
+                    Some(instance_length.parse().map_err(|_| ParseError::Header)?)
                 };
 
                 let range = if range == "*" {
@@ -141,7 +141,8 @@ impl FromStr for ContentRangeSpec {
                 } else {
                     let (first_byte, last_byte) =
                         split_in_two(range, '-').ok_or(ParseError::Header)?;
-                    let first_byte = first_byte.parse().map_err(|_| ParseError::Header)?;
+                    let first_byte =
+                        first_byte.parse().map_err(|_| ParseError::Header)?;
                     let last_byte = last_byte.parse().map_err(|_| ParseError::Header)?;
                     if last_byte < first_byte {
                         return Err(ParseError::Header);
@@ -165,7 +166,7 @@ impl FromStr for ContentRangeSpec {
 }
 
 impl Display for ContentRangeSpec {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         match *self {
             ContentRangeSpec::Bytes {
                 range,
@@ -187,10 +188,7 @@ impl Display for ContentRangeSpec {
                     f.write_str("*")
                 }
             }
-            ContentRangeSpec::Unregistered {
-                ref unit,
-                ref resp,
-            } => {
+            ContentRangeSpec::Unregistered { ref unit, ref resp } => {
                 f.write_str(unit)?;
                 f.write_str(" ")?;
                 f.write_str(resp)
@@ -200,11 +198,11 @@ impl Display for ContentRangeSpec {
 }
 
 impl IntoHeaderValue for ContentRangeSpec {
-    type Error = InvalidHeaderValueBytes;
+    type Error = InvalidHeaderValue;
 
     fn try_into(self) -> Result<HeaderValue, Self::Error> {
         let mut writer = Writer::new();
         let _ = write!(&mut writer, "{}", self);
-        HeaderValue::from_shared(writer.take())
+        HeaderValue::from_maybe_shared(writer.take())
     }
 }

actix-http/src/header/common/content_type.rs

@@ -1,5 +1,5 @@
-use header::CONTENT_TYPE;
-use mime::{self, Mime};
+use crate::header::CONTENT_TYPE;
+use mime::Mime;
 
 header! {
     /// `Content-Type` header, defined in
@@ -31,11 +31,11 @@ header! {
     /// # Examples
     ///
     /// ```rust
-    /// use actix_web::HttpResponse;
-    /// use actix_web::http::header::ContentType;
+    /// use actix_http::Response;
+    /// use actix_http::http::header::ContentType;
     ///
     /// # fn main() {
-    /// let mut builder = HttpResponse::Ok();
+    /// let mut builder = Response::Ok();
     /// builder.set(
     ///     ContentType::json()
     /// );
@@ -44,13 +44,13 @@ header! {
     ///
     /// ```rust
     /// # extern crate mime;
-    /// # extern crate actix_web;
+    /// # extern crate actix_http;
     /// use mime::TEXT_HTML;
-    /// use actix_web::HttpResponse;
-    /// use actix_web::http::header::ContentType;
+    /// use actix_http::Response;
+    /// use actix_http::http::header::ContentType;
     ///
     /// # fn main() {
-    /// let mut builder = HttpResponse::Ok();
+    /// let mut builder = Response::Ok();
     /// builder.set(
     ///     ContentType(TEXT_HTML)
     /// );
@@ -62,7 +62,7 @@ header! {
         test_header!(
             test1,
             vec![b"text/html"],
-            Some(HeaderField(TEXT_HTML)));
+            Some(HeaderField(mime::TEXT_HTML)));
     }
 }
 

actix-http/src/header/common/date.rs

@@ -1,4 +1,4 @@
-use header::{HttpDate, DATE};
+use crate::header::{HttpDate, DATE};
 use std::time::SystemTime;
 
 header! {
@@ -20,11 +20,11 @@ header! {
     /// # Example
     ///
     /// ```rust
-    /// use actix_web::HttpResponse;
-    /// use actix_web::http::header::Date;
+    /// use actix_http::Response;
+    /// use actix_http::http::header::Date;
     /// use std::time::SystemTime;
     ///
-    /// let mut builder = HttpResponse::Ok();
+    /// let mut builder = Response::Ok();
     /// builder.set(Date(SystemTime::now().into()));
     /// ```
     (Date, DATE) => [HttpDate]
@@ -35,6 +35,7 @@ header! {
 }
 
 impl Date {
+    /// Create a date instance set to the current system time
     pub fn now() -> Date {
         Date(SystemTime::now().into())
     }