prepare actix-web beta.9 releases (#2381)

* prepare actix-router release 0.5.0-beta.2

* prepare actix-web-codegen release 0.5.0-beta.4

* prepare actix-http release 3.0.0-beta.10

* prepare awc release 3.0.0-beta.8

* prepare actix-web release 4.0.0-beta.9

* prepare actix-http-test release 3.0.0-beta.6

* prepare actix-test release 0.1.0-beta.4

* prepare actix-files release 0.6.0-beta.7

* prepare actix-multipart release 0.4.0-beta.6

* prepare actix-web-actors release 4.0.0-beta.7

* fix http test version

* re-add patch

* update router repo url

* fix http test readme version

.cargo/config.toml

@@ -1,9 +1,9 @@
 [alias]
 chk = "check --workspace --all-features --tests --examples --bins"
-lint = "clippy --workspace --tests --examples"
+lint = "clippy --workspace --all-features --tests --examples --bins"
 ci-min = "hack check --workspace --no-default-features"
 ci-min-test = "hack check --workspace --no-default-features --tests --examples"
 ci-default = "check --workspace --bins --tests --examples"
 ci-full = "check --workspace --all-features --bins --tests --examples"
 ci-test = "test --workspace --all-features --lib --tests --no-fail-fast -- --nocapture"
-ci-doctest = "hack test --workspace --all-features --doc --no-fail-fast -- --nocapture"
+ci-doctest = "test --workspace --all-features --doc --no-fail-fast -- --nocapture"

.github/PULL_REQUEST_TEMPLATE.md

@@ -8,7 +8,7 @@ PR_TYPE
 
 
 ## PR Checklist
-<!-- Check your PR fulfills the following items. ->>
+<!-- Check your PR fulfills the following items. -->
 <!-- For draft PRs check the boxes as you complete them. -->
 
 - [ ] Tests for the changes have been added / updated.

.github/workflows/ci.yml

@@ -16,7 +16,7 @@ jobs:
           - { name: macOS, os: macos-latest, triple: x86_64-apple-darwin }
           - { name: Windows, os: windows-latest, triple: x86_64-pc-windows-msvc }
         version:
-          - 1.46.0 # MSRV
+          - 1.51.0 # MSRV
           - stable
           - nightly
 
@@ -24,6 +24,8 @@ jobs:
     runs-on: ${{ matrix.target.os }}
 
     env:
+      CI: 1
+      CARGO_INCREMENTAL: 0
       VCPKGRS_DYNAMIC: 1
 
     steps:
@@ -80,13 +82,6 @@ jobs:
           command: ci-test
           args: --skip=test_reading_deflate_encoding_large_random_rustls
 
-      - name: doc tests
-        # due to unknown issue with running doc tests on macOS
-        if: matrix.target.os == 'ubuntu-latest'
-        uses: actions-rs/cargo@v1
-        timeout-minutes: 40
-        with: { command: ci-doctest }
-
       - name: Generate coverage file
         if: >
           matrix.target.os == 'ubuntu-latest'
@@ -106,5 +101,36 @@ jobs:
 
       - name: Clear the cargo caches
         run: |
-          cargo install cargo-cache --version 0.6.2 --no-default-features --features ci-autoclean
+          cargo install cargo-cache --version 0.6.3 --no-default-features --features ci-autoclean
           cargo-cache
+
+  rustdoc:
+    name: rustdoc
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Install Rust (nightly)
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: nightly-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@v1.3.0
+
+      - name: Install cargo-hack
+        uses: actions-rs/cargo@v1
+        with:
+          command: install
+          args: cargo-hack
+
+      - name: doc tests
+        uses: actions-rs/cargo@v1
+        timeout-minutes: 40
+        with: { command: ci-doctest }

CHANGES.md

@@ -3,6 +3,26 @@
 ## Unreleased - 2021-xx-xx
 
 
+## 4.0.0-beta.9 - 2021-09-09
+### Added
+* Re-export actix-service `ServiceFactory` in `dev` module. [#2325]
+
+### Changed
+* Compress middleware will return 406 Not Acceptable when no content encoding is acceptable to the client. [#2344]
+* Move `BaseHttpResponse` to `dev::Response`. [#2379]
+* Enable `TestRequest::param` to accept more than just static strings. [#2172]
+* Minimum supported Rust version (MSRV) is now 1.51.
+
+### Fixed
+* Fix quality parse error in Accept-Encoding header. [#2344]
+* Re-export correct type at `web::HttpResponse`. [#2379]
+
+[#2172]: https://github.com/actix/actix-web/pull/2172
+[#2325]: https://github.com/actix/actix-web/pull/2325
+[#2344]: https://github.com/actix/actix-web/pull/2344
+[#2379]: https://github.com/actix/actix-web/pull/2379
+
+
 ## 4.0.0-beta.8 - 2021-06-26
 ### Added
 * Add `ServiceRequest::parts_mut`. [#2177]

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "actix-web"
-version = "4.0.0-beta.8"
+version = "4.0.0-beta.9"
 authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
 description = "Actix Web is a powerful, pragmatic, and extremely fast web framework for Rust"
 keywords = ["actix", "http", "web", "framework", "async"]
@@ -24,6 +24,7 @@ name = "actix_web"
 path = "src/lib.rs"
 
 [workspace]
+resolver = "2"
 members = [
     ".",
     "awc",
@@ -34,6 +35,7 @@ members = [
     "actix-web-codegen",
     "actix-http-test",
     "actix-test",
+    "actix-router",
 ]
 # enable when MSRV is 1.51+
 # resolver = "2"
@@ -67,15 +69,15 @@ __compress = []
 [dependencies]
 actix-codec = "0.4.0"
 actix-macros = "0.2.1"
-actix-router = "0.2.7"
+actix-router = "0.5.0-beta.2"
 actix-rt = "2.2"
 actix-server = "2.0.0-beta.3"
 actix-service = "2.0.0"
 actix-utils = "3.0.0"
 actix-tls = { version = "3.0.0-beta.5", default-features = false, optional = true }
 
-actix-web-codegen = "0.5.0-beta.2"
-actix-http = "3.0.0-beta.8"
+actix-web-codegen = "0.5.0-beta.4"
+actix-http = "3.0.0-beta.10"
 
 ahash = "0.7"
 bytes = "1"
@@ -97,14 +99,14 @@ regex = "1.4"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 serde_urlencoded = "0.7"
-smallvec = "1.6"
+smallvec = "1.6.1"
 socket2 = "0.4.0"
 time = { version = "0.2.23", default-features = false, features = ["std"] }
 url = "2.1"
 
 [dev-dependencies]
 actix-test = { version = "0.1.0-beta.3", features = ["openssl", "rustls"] }
-awc = { version = "3.0.0-beta.7", features = ["openssl"] }
+awc = { version = "3.0.0-beta.8", features = ["openssl"] }
 
 brotli2 = "0.3.2"
 criterion = { version = "0.3", features = ["html_reports"] }
@@ -116,6 +118,10 @@ rcgen = "0.8"
 tls-openssl = { package = "openssl", version = "0.10.9" }
 tls-rustls = { package = "rustls", version = "0.19.0" }
 
+[profile.dev]
+# Disabling debug info speeds up builds a bunch and we don't rely on it for debugging that much.
+debug = 0
+
 [profile.release]
 lto = true
 opt-level = 3
@@ -126,6 +132,7 @@ actix-files = { path = "actix-files" }
 actix-http = { path = "actix-http" }
 actix-http-test = { path = "actix-http-test" }
 actix-multipart = { path = "actix-multipart" }
+actix-router = { path = "actix-router" }
 actix-test = { path = "actix-test" }
 actix-web = { path = "." }
 actix-web-actors = { path = "actix-web-actors" }

MIGRATION.md

@@ -3,10 +3,11 @@
 * 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()`.
+  using `NormalizePath::default()`. As such, calling `NormalizePath::default()` will log a warning.
+  It is advised that the `new` method be used instead.
   
-  Before: `#[get("/test/")`  
-  After: `#[get("/test")`  
+  Before: `#[get("/test/")]`  
+  After:  `#[get("/test")]`  
 
   Alternatively, explicitly require trailing slashes: `NormalizePath::new(TrailingSlash::Always)`.
 

README.md

@@ -6,10 +6,10 @@
   <p>
 
 [![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=4.0.0-beta.8)](https://docs.rs/actix-web/4.0.0-beta.8)
-[![Version](https://img.shields.io/badge/rustc-1.46+-ab6000.svg)](https://blog.rust-lang.org/2020/03/12/Rust-1.46.html)
+[![Documentation](https://docs.rs/actix-web/badge.svg?version=4.0.0-beta.9)](https://docs.rs/actix-web/4.0.0-beta.9)
+[![Version](https://img.shields.io/badge/rustc-1.51+-ab6000.svg)](https://blog.rust-lang.org/2020/03/12/Rust-1.51.html)
 ![MIT or Apache 2.0 licensed](https://img.shields.io/crates/l/actix-web.svg)
-[![Dependency Status](https://deps.rs/crate/actix-web/4.0.0-beta.8/status.svg)](https://deps.rs/crate/actix-web/4.0.0-beta.8)
+[![Dependency Status](https://deps.rs/crate/actix-web/4.0.0-beta.9/status.svg)](https://deps.rs/crate/actix-web/4.0.0-beta.9)
 <br />
 [![build status](https://github.com/actix/actix-web/workflows/CI%20%28Linux%29/badge.svg?branch=master&event=push)](https://github.com/actix/actix-web/actions)
 [![codecov](https://codecov.io/gh/actix/actix-web/branch/master/graph/badge.svg)](https://codecov.io/gh/actix/actix-web) 
@@ -32,7 +32,7 @@
 * SSL support using OpenSSL or Rustls
 * Middlewares ([Logger, Session, CORS, etc](https://actix.rs/docs/middleware/))
 * Includes an async [HTTP client](https://docs.rs/awc/)
-* Runs on stable Rust 1.46+
+* Runs on stable Rust 1.51+
 
 ## Documentation
 

actix-files/CHANGES.md

@@ -3,6 +3,10 @@
 ## Unreleased - 2021-xx-xx
 
 
+## 0.6.0-beta.7 - 2021-09-09
+* Minimum supported Rust version (MSRV) is now 1.51.
+
+
 ## 0.6.0-beta.6 - 2021-06-26
 * Added `Files::path_filter()`. [#2274]
 * `Files::show_files_listing()` can now be used with `Files::index_file()` to show files listing as a fallback when the index file is not found. [#2228]

actix-files/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "actix-files"
-version = "0.6.0-beta.6"
+version = "0.6.0-beta.7"
 authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
 description = "Static file serving for Actix Web"
 keywords = ["actix", "http", "async", "futures"]
@@ -15,8 +15,8 @@ name = "actix_files"
 path = "src/lib.rs"
 
 [dependencies]
-actix-web = { version = "4.0.0-beta.8", default-features = false }
-actix-http = "3.0.0-beta.8"
+actix-web = { version = "4.0.0-beta.9", default-features = false }
+actix-http = "3.0.0-beta.10"
 actix-service = "2.0.0"
 actix-utils = "3.0.0"
 
@@ -33,5 +33,5 @@ percent-encoding = "2.1"
 
 [dev-dependencies]
 actix-rt = "2.2"
-actix-web = "4.0.0-beta.8"
+actix-web = "4.0.0-beta.9"
 actix-test = "0.1.0-beta.3"

actix-files/README.md

@@ -3,11 +3,11 @@
 > 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=0.6.0-beta.6)](https://docs.rs/actix-files/0.6.0-beta.6)
-[![Version](https://img.shields.io/badge/rustc-1.46+-ab6000.svg)](https://blog.rust-lang.org/2020/03/12/Rust-1.46.html)
+[![Documentation](https://docs.rs/actix-files/badge.svg?version=0.6.0-beta.7)](https://docs.rs/actix-files/0.6.0-beta.7)
+[![Version](https://img.shields.io/badge/rustc-1.51+-ab6000.svg)](https://blog.rust-lang.org/2020/03/12/Rust-1.51.html)
 ![License](https://img.shields.io/crates/l/actix-files.svg)
 <br />
-[![dependency status](https://deps.rs/crate/actix-files/0.6.0-beta.6/status.svg)](https://deps.rs/crate/actix-files/0.6.0-beta.6)
+[![dependency status](https://deps.rs/crate/actix-files/0.6.0-beta.7/status.svg)](https://deps.rs/crate/actix-files/0.6.0-beta.7)
 [![Download](https://img.shields.io/crates/d/actix-files.svg)](https://crates.io/crates/actix-files)
 [![Chat on Discord](https://img.shields.io/discord/771444961383153695?label=chat&logo=discord)](https://discord.gg/NWpN5mmg3x)
 
@@ -15,4 +15,4 @@
 
 - [API Documentation](https://docs.rs/actix-files/)
 - [Example Project](https://github.com/actix/examples/tree/master/basics/static_index)
-- Minimum supported Rust version: 1.46 or later
+- Minimum supported Rust version: 1.51 or later

actix-files/src/error.rs

@@ -21,6 +21,7 @@ impl ResponseError for FilesError {
     }
 }
 
+#[allow(clippy::enum_variant_names)]
 #[derive(Display, Debug, PartialEq)]
 pub enum UriSegmentError {
     /// The segment started with the wrapped invalid character.

actix-files/src/files.rs

@@ -106,7 +106,7 @@ impl Files {
         };
 
         Files {
-            path: mount_path.to_owned(),
+            path: mount_path.trim_end_matches('/').to_owned(),
             directory: dir,
             index: None,
             show_index: false,

actix-http-test/CHANGES.md

@@ -3,6 +3,10 @@
 ## Unreleased - 2021-xx-xx
 
 
+## 3.0.0-beta.5 - 2021-09-09
+* Minimum supported Rust version (MSRV) is now 1.51.
+
+
 ## 3.0.0-beta.4 - 2021-04-02
 * Added `TestServer::client_headers` method. [#2097]
 

actix-http-test/Cargo.toml

@@ -1,18 +1,18 @@
 [package]
 name = "actix-http-test"
-version = "3.0.0-beta.4"
+version = "3.0.0-beta.5"
 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"]
+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]
@@ -35,7 +35,7 @@ actix-tls = "3.0.0-beta.5"
 actix-utils = "3.0.0"
 actix-rt = "2.2"
 actix-server = "2.0.0-beta.3"
-awc = { version = "3.0.0-beta.7", default-features = false }
+awc = { version = "3.0.0-beta.8", default-features = false }
 
 base64 = "0.13"
 bytes = "1"
@@ -51,5 +51,5 @@ time = { version = "0.2.23", default-features = false, features = ["std"] }
 tls-openssl = { version = "0.10.9", package = "openssl", optional = true }
 
 [dev-dependencies]
-actix-web = { version = "4.0.0-beta.8", default-features = false, features = ["cookies"] }
-actix-http = "3.0.0-beta.8"
+actix-web = { version = "4.0.0-beta.9", default-features = false, features = ["cookies"] }
+actix-http = "3.0.0-beta.10"

actix-http-test/README.md

@@ -3,15 +3,15 @@
 > 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=3.0.0-beta.4)](https://docs.rs/actix-http-test/3.0.0-beta.4)
-[![Version](https://img.shields.io/badge/rustc-1.46+-ab6000.svg)](https://blog.rust-lang.org/2020/03/12/Rust-1.46.html)
+[![Documentation](https://docs.rs/actix-http-test/badge.svg?version=3.0.0-beta.5)](https://docs.rs/actix-http-test/3.0.0-beta.5)
+[![Version](https://img.shields.io/badge/rustc-1.51+-ab6000.svg)](https://blog.rust-lang.org/2020/03/12/Rust-1.51.html)
 ![MIT or Apache 2.0 licensed](https://img.shields.io/crates/l/actix-http-test)
 <br>
-[![Dependency Status](https://deps.rs/crate/actix-http-test/3.0.0-beta.4/status.svg)](https://deps.rs/crate/actix-http-test/3.0.0-beta.4)
+[![Dependency Status](https://deps.rs/crate/actix-http-test/3.0.0-beta.5/status.svg)](https://deps.rs/crate/actix-http-test/3.0.0-beta.5)
 [![Download](https://img.shields.io/crates/d/actix-http-test.svg)](https://crates.io/crates/actix-http-test)
 [![Chat on Discord](https://img.shields.io/discord/771444961383153695?label=chat&logo=discord)](https://discord.gg/NWpN5mmg3x)
 
 ## Documentation & Resources
 
 - [API Documentation](https://docs.rs/actix-http-test)
-- Minimum Supported Rust Version (MSRV): 1.46.0
+- Minimum Supported Rust Version (MSRV): 1.51.0

actix-http/CHANGES.md

@@ -3,6 +3,27 @@
 ## Unreleased - 2021-xx-xx
 
 
+## 3.0.0-beta.10 - 2021-09-09
+### Changed
+* `ContentEncoding` is now marked `#[non_exhaustive]`. [#2377]
+* Minimum supported Rust version (MSRV) is now 1.51.
+
+### Fixed
+* Remove slice creation pointing to potential uninitialized data on h1 encoder. [#2364]
+* Remove `Into<Error>` bound on `Encoder` body types. [#2375]
+* Fix quality parse error in Accept-Encoding header. [#2344]
+
+[#2364]: https://github.com/actix/actix-web/pull/2364
+[#2375]: https://github.com/actix/actix-web/pull/2375
+[#2344]: https://github.com/actix/actix-web/pull/2344
+[#2377]: https://github.com/actix/actix-web/pull/2377
+
+
+## 3.0.0-beta.9 - 2021-08-09
+### Fixed
+* Potential HTTP request smuggling vulnerabilities. [RUSTSEC-2021-0081](https://github.com/rustsec/advisory-db/pull/977)
+
+
 ## 3.0.0-beta.8 - 2021-06-26
 ### Changed
 * Change compression algorithm features flags. [#2250]
@@ -210,6 +231,11 @@
 [#1878]: https://github.com/actix/actix-web/pull/1878
 
 
+## 2.2.1 - 2021-08-09
+### Fixed
+* Potential HTTP request smuggling vulnerabilities. [RUSTSEC-2021-0081](https://github.com/rustsec/advisory-db/pull/977)
+
+
 ## 2.2.0 - 2020-11-25
 ### Added
 * HttpResponse builders for 1xx status codes. [#1768]

actix-http/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "actix-http"
-version = "3.0.0-beta.8"
+version = "3.0.0-beta.10"
 authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
 description = "HTTP primitives for the Actix ecosystem"
 keywords = ["actix", "http", "framework", "async", "futures"]
@@ -59,7 +59,7 @@ futures-core = { version = "0.3.7", default-features = false, features = ["alloc
 futures-util = { version = "0.3.7", default-features = false, features = ["alloc", "sink"] }
 h2 = "0.3.1"
 http = "0.2.2"
-httparse = "1.3"
+httparse = "1.5.1"
 itoa = "0.4"
 language-tags = "0.3"
 local-channel = "0.1"
@@ -73,7 +73,7 @@ rand = "0.8"
 regex = "1.3"
 serde = "1.0"
 sha-1 = "0.9"
-smallvec = "1.6"
+smallvec = "1.6.1"
 time = { version = "0.2.23", default-features = false, features = ["std"] }
 tokio = { version = "1.2", features = ["sync"] }
 
@@ -86,7 +86,7 @@ trust-dns-resolver = { version = "0.20.0", optional = true }
 
 [dev-dependencies]
 actix-server = "2.0.0-beta.3"
-actix-http-test = { version = "3.0.0-beta.4", features = ["openssl"] }
+actix-http-test = { version = "3.0.0-beta.5", features = ["openssl"] }
 actix-tls = { version = "3.0.0-beta.5", features = ["openssl"] }
 async-stream = "0.3"
 criterion = { version = "0.3", features = ["html_reports"] }

actix-http/README.md

@@ -3,18 +3,18 @@
 > 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=3.0.0-beta.8)](https://docs.rs/actix-http/3.0.0-beta.8)
-[![Version](https://img.shields.io/badge/rustc-1.46+-ab6000.svg)](https://blog.rust-lang.org/2020/03/12/Rust-1.46.html)
+[![Documentation](https://docs.rs/actix-http/badge.svg?version=3.0.0-beta.10)](https://docs.rs/actix-http/3.0.0-beta.10)
+[![Version](https://img.shields.io/badge/rustc-1.51+-ab6000.svg)](https://blog.rust-lang.org/2020/03/12/Rust-1.51.html)
 ![MIT or Apache 2.0 licensed](https://img.shields.io/crates/l/actix-http.svg)
 <br />
-[![dependency status](https://deps.rs/crate/actix-http/3.0.0-beta.8/status.svg)](https://deps.rs/crate/actix-http/3.0.0-beta.8)
+[![dependency status](https://deps.rs/crate/actix-http/3.0.0-beta.10/status.svg)](https://deps.rs/crate/actix-http/3.0.0-beta.10)
 [![Download](https://img.shields.io/crates/d/actix-http.svg)](https://crates.io/crates/actix-http)
 [![Chat on Discord](https://img.shields.io/discord/771444961383153695?label=chat&logo=discord)](https://discord.gg/NWpN5mmg3x)
 
 ## Documentation & Resources
 
 - [API Documentation](https://docs.rs/actix-http)
-- Minimum Supported Rust Version (MSRV): 1.46.0
+- Minimum Supported Rust Version (MSRV): 1.51.0
 
 ## Example
 

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

@@ -18,7 +18,8 @@ fn bench_write_camel_case(c: &mut Criterion) {
         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)
+                let len = black_box(bts.len());
+                _new::write_camel_case(black_box(bts), buf.as_mut_ptr(), len)
             });
         });
     }
@@ -30,9 +31,12 @@ criterion_group!(benches, bench_write_camel_case);
 criterion_main!(benches);
 
 mod _new {
-    pub fn write_camel_case(value: &[u8], buffer: &mut [u8]) {
+    pub fn write_camel_case(value: &[u8], buf: *mut u8, len: usize) {
         // first copy entire (potentially wrong) slice to output
-        buffer[..value.len()].copy_from_slice(value);
+        let buffer = unsafe {
+            std::ptr::copy_nonoverlapping(value.as_ptr(), buf, len);
+            std::slice::from_raw_parts_mut(buf, len)
+        };
 
         let mut iter = value.iter();
 

actix-http/src/body/body.rs

@@ -7,7 +7,7 @@ use std::{
 };
 
 use bytes::{Bytes, BytesMut};
-use futures_core::{ready, Stream};
+use futures_core::Stream;
 
 use crate::error::Error;
 
@@ -74,14 +74,10 @@ impl MessageBody for AnyBody {
                 }
             }
 
-            // TODO: MSRV 1.51: poll_map_err
-            AnyBody::Message(body) => match ready!(body.as_pin_mut().poll_next(cx)) {
-                Some(Err(err)) => {
-                    Poll::Ready(Some(Err(Error::new_body().with_cause(err))))
-                }
-                Some(Ok(val)) => Poll::Ready(Some(Ok(val))),
-                None => Poll::Ready(None),
-            },
+            AnyBody::Message(body) => body
+                .as_pin_mut()
+                .poll_next(cx)
+                .map_err(|err| Error::new_body().with_cause(err)),
         }
     }
 }
@@ -223,11 +219,9 @@ impl MessageBody for BoxAnyBody {
         mut self: Pin<&mut Self>,
         cx: &mut Context<'_>,
     ) -> Poll<Option<Result<Bytes, Self::Error>>> {
-        // TODO: MSRV 1.51: poll_map_err
-        match ready!(self.0.as_mut().poll_next(cx)) {
-            Some(Err(err)) => Poll::Ready(Some(Err(Error::new_body().with_cause(err)))),
-            Some(Ok(val)) => Poll::Ready(Some(Ok(val))),
-            None => Poll::Ready(None),
-        }
+        self.0
+            .as_mut()
+            .poll_next(cx)
+            .map_err(|err| Error::new_body().with_cause(err))
     }
 }

actix-http/src/body/message_body.rs

@@ -11,8 +11,6 @@ use bytes::{Bytes, BytesMut};
 use futures_core::ready;
 use pin_project_lite::pin_project;
 
-use crate::error::Error;
-
 use super::BodySize;
 
 /// An interface for response bodies.
@@ -47,7 +45,6 @@ impl MessageBody for () {
 impl<B> MessageBody for Box<B>
 where
     B: MessageBody + Unpin,
-    B::Error: Into<Error>,
 {
     type Error = B::Error;
 
@@ -66,7 +63,6 @@ where
 impl<B> MessageBody for Pin<Box<B>>
 where
     B: MessageBody,
-    B::Error: Into<Error>,
 {
     type Error = B::Error;
 

actix-http/src/body/mod.rs

@@ -80,7 +80,7 @@ mod tests {
     impl Body {
         pub(crate) fn get_ref(&self) -> &[u8] {
             match *self {
-                Body::Bytes(ref bin) => &bin,
+                Body::Bytes(ref bin) => bin,
                 _ => panic!(),
             }
         }

actix-http/src/body/response_body.rs

@@ -5,7 +5,7 @@ use std::{
 };
 
 use bytes::Bytes;
-use futures_core::{ready, Stream};
+use futures_core::Stream;
 use pin_project::pin_project;
 
 use crate::error::Error;
@@ -77,12 +77,7 @@ where
         cx: &mut Context<'_>,
     ) -> Poll<Option<Self::Item>> {
         match self.project() {
-            // TODO: MSRV 1.51: poll_map_err
-            ResponseBodyProj::Body(body) => match ready!(body.poll_next(cx)) {
-                Some(Err(err)) => Poll::Ready(Some(Err(err.into()))),
-                Some(Ok(val)) => Poll::Ready(Some(Ok(val))),
-                None => Poll::Ready(None),
-            },
+            ResponseBodyProj::Body(body) => body.poll_next(cx).map_err(Into::into),
             ResponseBodyProj::Other(body) => Pin::new(body).poll_next(cx),
         }
     }

actix-http/src/config.rs

@@ -104,6 +104,8 @@ impl ServiceConfig {
     }
 
     /// Returns the local address that this server is bound to.
+    ///
+    /// Returns `None` for connections via UDS (Unix Domain Socket).
     #[inline]
     pub fn local_addr(&self) -> Option<net::SocketAddr> {
         self.0.local_addr
@@ -326,7 +328,7 @@ mod notify_on_drop {
 mod tests {
     use super::*;
 
-    use actix_rt::task::yield_now;
+    use actix_rt::{task::yield_now, time::sleep};
 
     #[actix_rt::test]
     async fn test_date_service_update() {
@@ -350,7 +352,14 @@ mod tests {
         assert_ne!(buf1, buf2);
 
         drop(settings);
-        assert!(notify_on_drop::is_dropped());
+
+        // Ensure the task will drop eventually
+        let mut times = 0;
+        while !notify_on_drop::is_dropped() {
+            sleep(Duration::from_millis(100)).await;
+            times += 1;
+            assert!(times < 10, "Timeout waiting for task drop");
+        }
     }
 
     #[actix_rt::test]
@@ -372,7 +381,14 @@ mod tests {
         assert!(!notify_on_drop::is_dropped());
 
         drop(service);
-        assert!(notify_on_drop::is_dropped());
+
+        // Ensure the task will drop eventually
+        let mut times = 0;
+        while !notify_on_drop::is_dropped() {
+            sleep(Duration::from_millis(100)).await;
+            times += 1;
+            assert!(times < 10, "Timeout waiting for task drop");
+        }
     }
 
     #[test]

actix-http/src/encoding/decoder.rs

@@ -80,7 +80,7 @@ where
         let encoding = headers
             .get(&CONTENT_ENCODING)
             .and_then(|val| val.to_str().ok())
-            .map(ContentEncoding::from)
+            .and_then(|x| x.parse().ok())
             .unwrap_or(ContentEncoding::Identity);
 
         Self::new(stream, encoding)

actix-http/src/encoding/encoder.rs

@@ -29,7 +29,7 @@ use crate::{
         header::{ContentEncoding, CONTENT_ENCODING},
         HeaderValue, StatusCode,
     },
-    Error, ResponseHead,
+    ResponseHead,
 };
 
 use super::Writer;
@@ -107,7 +107,6 @@ enum EncoderBody<B> {
 impl<B> MessageBody for EncoderBody<B>
 where
     B: MessageBody,
-    B::Error: Into<Error>,
 {
     type Error = EncoderError<B::Error>;
 
@@ -131,18 +130,9 @@ where
                     Poll::Ready(Some(Ok(std::mem::take(b))))
                 }
             }
-            // TODO: MSRV 1.51: poll_map_err
-            EncoderBodyProj::Stream(b) => match ready!(b.poll_next(cx)) {
-                Some(Err(err)) => Poll::Ready(Some(Err(EncoderError::Body(err)))),
-                Some(Ok(val)) => Poll::Ready(Some(Ok(val))),
-                None => Poll::Ready(None),
-            },
+            EncoderBodyProj::Stream(b) => b.poll_next(cx).map_err(EncoderError::Body),
             EncoderBodyProj::BoxedStream(ref mut b) => {
-                match ready!(b.as_pin_mut().poll_next(cx)) {
-                    Some(Err(err)) => Poll::Ready(Some(Err(EncoderError::Boxed(err)))),
-                    Some(Ok(val)) => Poll::Ready(Some(Ok(val))),
-                    None => Poll::Ready(None),
-                }
+                b.as_pin_mut().poll_next(cx).map_err(EncoderError::Boxed)
             }
         }
     }
@@ -151,7 +141,6 @@ where
 impl<B> MessageBody for Encoder<B>
 where
     B: MessageBody,
-    B::Error: Into<Error>,
 {
     type Error = EncoderError<B::Error>;
 

actix-http/src/error.rs

@@ -55,6 +55,8 @@ impl Error {
         Self::new(Kind::Io)
     }
 
+    // used in encoder behind feature flag so ignore unused warning
+    #[allow(unused)]
     pub(crate) fn new_encoder() -> Self {
         Self::new(Kind::Encoder)
     }
@@ -194,7 +196,7 @@ pub enum ParseError {
     #[display(fmt = "IO error: {}", _0)]
     Io(io::Error),
 
-    /// Parsing a field as string failed
+    /// Parsing a field as string failed.
     #[display(fmt = "UTF8 error: {}", _0)]
     Utf8(Utf8Error),
 }

actix-http/src/h1/chunked.rs

@@ -0,0 +1,432 @@
+use std::{io, task::Poll};
+
+use bytes::{Buf as _, Bytes, BytesMut};
+
+macro_rules! byte (
+    ($rdr:ident) => ({
+        if $rdr.len() > 0 {
+            let b = $rdr[0];
+            $rdr.advance(1);
+            b
+        } else {
+            return Poll::Pending
+        }
+    })
+);
+
+#[derive(Debug, PartialEq, Clone)]
+pub(super) enum ChunkedState {
+    Size,
+    SizeLws,
+    Extension,
+    SizeLf,
+    Body,
+    BodyCr,
+    BodyLf,
+    EndCr,
+    EndLf,
+    End,
+}
+
+impl ChunkedState {
+    pub(super) fn step(
+        &self,
+        body: &mut BytesMut,
+        size: &mut u64,
+        buf: &mut Option<Bytes>,
+    ) -> Poll<Result<ChunkedState, io::Error>> {
+        use self::ChunkedState::*;
+        match *self {
+            Size => ChunkedState::read_size(body, size),
+            SizeLws => ChunkedState::read_size_lws(body),
+            Extension => ChunkedState::read_extension(body),
+            SizeLf => ChunkedState::read_size_lf(body, *size),
+            Body => ChunkedState::read_body(body, size, buf),
+            BodyCr => ChunkedState::read_body_cr(body),
+            BodyLf => ChunkedState::read_body_lf(body),
+            EndCr => ChunkedState::read_end_cr(body),
+            EndLf => ChunkedState::read_end_lf(body),
+            End => Poll::Ready(Ok(ChunkedState::End)),
+        }
+    }
+
+    fn read_size(
+        rdr: &mut BytesMut,
+        size: &mut u64,
+    ) -> Poll<Result<ChunkedState, io::Error>> {
+        let radix = 16;
+
+        let rem = match byte!(rdr) {
+            b @ b'0'..=b'9' => b - b'0',
+            b @ b'a'..=b'f' => b + 10 - b'a',
+            b @ b'A'..=b'F' => b + 10 - b'A',
+            b'\t' | b' ' => return Poll::Ready(Ok(ChunkedState::SizeLws)),
+            b';' => return Poll::Ready(Ok(ChunkedState::Extension)),
+            b'\r' => return Poll::Ready(Ok(ChunkedState::SizeLf)),
+            _ => {
+                return Poll::Ready(Err(io::Error::new(
+                    io::ErrorKind::InvalidInput,
+                    "Invalid chunk size line: Invalid Size",
+                )));
+            }
+        };
+
+        match size.checked_mul(radix) {
+            Some(n) => {
+                *size = n as u64;
+                *size += rem as u64;
+
+                Poll::Ready(Ok(ChunkedState::Size))
+            }
+            None => {
+                log::debug!("chunk size would overflow u64");
+                Poll::Ready(Err(io::Error::new(
+                    io::ErrorKind::InvalidInput,
+                    "Invalid chunk size line: Size is too big",
+                )))
+            }
+        }
+    }
+
+    fn read_size_lws(rdr: &mut BytesMut) -> Poll<Result<ChunkedState, io::Error>> {
+        match byte!(rdr) {
+            // LWS can follow the chunk size, but no more digits can come
+            b'\t' | b' ' => Poll::Ready(Ok(ChunkedState::SizeLws)),
+            b';' => Poll::Ready(Ok(ChunkedState::Extension)),
+            b'\r' => Poll::Ready(Ok(ChunkedState::SizeLf)),
+            _ => Poll::Ready(Err(io::Error::new(
+                io::ErrorKind::InvalidInput,
+                "Invalid chunk size linear white space",
+            ))),
+        }
+    }
+    fn read_extension(rdr: &mut BytesMut) -> Poll<Result<ChunkedState, io::Error>> {
+        match byte!(rdr) {
+            b'\r' => Poll::Ready(Ok(ChunkedState::SizeLf)),
+            // strictly 0x20 (space) should be disallowed but we don't parse quoted strings here
+            0x00..=0x08 | 0x0a..=0x1f | 0x7f => Poll::Ready(Err(io::Error::new(
+                io::ErrorKind::InvalidInput,
+                "Invalid character in chunk extension",
+            ))),
+            _ => Poll::Ready(Ok(ChunkedState::Extension)), // no supported extensions
+        }
+    }
+    fn read_size_lf(
+        rdr: &mut BytesMut,
+        size: u64,
+    ) -> Poll<Result<ChunkedState, io::Error>> {
+        match byte!(rdr) {
+            b'\n' if size > 0 => Poll::Ready(Ok(ChunkedState::Body)),
+            b'\n' if size == 0 => Poll::Ready(Ok(ChunkedState::EndCr)),
+            _ => Poll::Ready(Err(io::Error::new(
+                io::ErrorKind::InvalidInput,
+                "Invalid chunk size LF",
+            ))),
+        }
+    }
+
+    fn read_body(
+        rdr: &mut BytesMut,
+        rem: &mut u64,
+        buf: &mut Option<Bytes>,
+    ) -> Poll<Result<ChunkedState, io::Error>> {
+        log::trace!("Chunked read, remaining={:?}", rem);
+
+        let len = rdr.len() as u64;
+        if len == 0 {
+            Poll::Ready(Ok(ChunkedState::Body))
+        } else {
+            let slice;
+            if *rem > len {
+                slice = rdr.split().freeze();
+                *rem -= len;
+            } else {
+                slice = rdr.split_to(*rem as usize).freeze();
+                *rem = 0;
+            }
+            *buf = Some(slice);
+            if *rem > 0 {
+                Poll::Ready(Ok(ChunkedState::Body))
+            } else {
+                Poll::Ready(Ok(ChunkedState::BodyCr))
+            }
+        }
+    }
+
+    fn read_body_cr(rdr: &mut BytesMut) -> Poll<Result<ChunkedState, io::Error>> {
+        match byte!(rdr) {
+            b'\r' => Poll::Ready(Ok(ChunkedState::BodyLf)),
+            _ => Poll::Ready(Err(io::Error::new(
+                io::ErrorKind::InvalidInput,
+                "Invalid chunk body CR",
+            ))),
+        }
+    }
+    fn read_body_lf(rdr: &mut BytesMut) -> Poll<Result<ChunkedState, io::Error>> {
+        match byte!(rdr) {
+            b'\n' => Poll::Ready(Ok(ChunkedState::Size)),
+            _ => Poll::Ready(Err(io::Error::new(
+                io::ErrorKind::InvalidInput,
+                "Invalid chunk body LF",
+            ))),
+        }
+    }
+    fn read_end_cr(rdr: &mut BytesMut) -> Poll<Result<ChunkedState, io::Error>> {
+        match byte!(rdr) {
+            b'\r' => Poll::Ready(Ok(ChunkedState::EndLf)),
+            _ => Poll::Ready(Err(io::Error::new(
+                io::ErrorKind::InvalidInput,
+                "Invalid chunk end CR",
+            ))),
+        }
+    }
+    fn read_end_lf(rdr: &mut BytesMut) -> Poll<Result<ChunkedState, io::Error>> {
+        match byte!(rdr) {
+            b'\n' => Poll::Ready(Ok(ChunkedState::End)),
+            _ => Poll::Ready(Err(io::Error::new(
+                io::ErrorKind::InvalidInput,
+                "Invalid chunk end LF",
+            ))),
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use actix_codec::Decoder as _;
+    use bytes::{Bytes, BytesMut};
+    use http::Method;
+
+    use crate::{
+        error::ParseError,
+        h1::decoder::{MessageDecoder, PayloadItem},
+        HttpMessage as _, Request,
+    };
+
+    macro_rules! parse_ready {
+        ($e:expr) => {{
+            match MessageDecoder::<Request>::default().decode($e) {
+                Ok(Some((msg, _))) => msg,
+                Ok(_) => unreachable!("Eof during parsing http request"),
+                Err(err) => unreachable!("Error during parsing http request: {:?}", err),
+            }
+        }};
+    }
+
+    macro_rules! expect_parse_err {
+        ($e:expr) => {{
+            match MessageDecoder::<Request>::default().decode($e) {
+                Err(err) => match err {
+                    ParseError::Io(_) => unreachable!("Parse error expected"),
+                    _ => {}
+                },
+                _ => unreachable!("Error expected"),
+            }
+        }};
+    }
+
+    #[test]
+    fn test_parse_chunked_payload_chunk_extension() {
+        let mut buf = BytesMut::from(
+            "GET /test HTTP/1.1\r\n\
+            transfer-encoding: chunked\r\n\
+            \r\n",
+        );
+
+        let mut reader = MessageDecoder::<Request>::default();
+        let (msg, pl) = reader.decode(&mut buf).unwrap().unwrap();
+        let mut pl = pl.unwrap();
+        assert!(msg.chunked().unwrap());
+
+        buf.extend(b"4;test\r\ndata\r\n4\r\nline\r\n0\r\n\r\n"); // test: test\r\n\r\n")
+        let chunk = pl.decode(&mut buf).unwrap().unwrap().chunk();
+        assert_eq!(chunk, Bytes::from_static(b"data"));
+        let chunk = pl.decode(&mut buf).unwrap().unwrap().chunk();
+        assert_eq!(chunk, Bytes::from_static(b"line"));
+        let msg = pl.decode(&mut buf).unwrap().unwrap();
+        assert!(msg.eof());
+    }
+
+    #[test]
+    fn test_request_chunked() {
+        let mut buf = BytesMut::from(
+            "GET /test HTTP/1.1\r\n\
+             transfer-encoding: chunked\r\n\r\n",
+        );
+        let req = parse_ready!(&mut buf);
+
+        if let Ok(val) = req.chunked() {
+            assert!(val);
+        } else {
+            unreachable!("Error");
+        }
+
+        // intentional typo in "chunked"
+        let mut buf = BytesMut::from(
+            "GET /test HTTP/1.1\r\n\
+             transfer-encoding: chnked\r\n\r\n",
+        );
+        expect_parse_err!(&mut buf);
+    }
+
+    #[test]
+    fn test_http_request_chunked_payload() {
+        let mut buf = BytesMut::from(
+            "GET /test HTTP/1.1\r\n\
+             transfer-encoding: chunked\r\n\r\n",
+        );
+        let mut reader = MessageDecoder::<Request>::default();
+        let (req, pl) = reader.decode(&mut buf).unwrap().unwrap();
+        let mut pl = pl.unwrap();
+        assert!(req.chunked().unwrap());
+
+        buf.extend(b"4\r\ndata\r\n4\r\nline\r\n0\r\n\r\n");
+        assert_eq!(
+            pl.decode(&mut buf).unwrap().unwrap().chunk().as_ref(),
+            b"data"
+        );
+        assert_eq!(
+            pl.decode(&mut buf).unwrap().unwrap().chunk().as_ref(),
+            b"line"
+        );
+        assert!(pl.decode(&mut buf).unwrap().unwrap().eof());
+    }
+
+    #[test]
+    fn test_http_request_chunked_payload_and_next_message() {
+        let mut buf = BytesMut::from(
+            "GET /test HTTP/1.1\r\n\
+             transfer-encoding: chunked\r\n\r\n",
+        );
+        let mut reader = MessageDecoder::<Request>::default();
+        let (req, pl) = reader.decode(&mut buf).unwrap().unwrap();
+        let mut pl = pl.unwrap();
+        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 = pl.decode(&mut buf).unwrap().unwrap();
+        assert_eq!(msg.chunk().as_ref(), b"data");
+        let msg = pl.decode(&mut buf).unwrap().unwrap();
+        assert_eq!(msg.chunk().as_ref(), b"line");
+        let msg = pl.decode(&mut buf).unwrap().unwrap();
+        assert!(msg.eof());
+
+        let (req, _) = reader.decode(&mut buf).unwrap().unwrap();
+        assert!(req.chunked().unwrap());
+        assert_eq!(*req.method(), Method::POST);
+        assert!(req.chunked().unwrap());
+    }
+
+    #[test]
+    fn test_http_request_chunked_payload_chunks() {
+        let mut buf = BytesMut::from(
+            "GET /test HTTP/1.1\r\n\
+             transfer-encoding: chunked\r\n\r\n",
+        );
+
+        let mut reader = MessageDecoder::<Request>::default();
+        let (req, pl) = reader.decode(&mut buf).unwrap().unwrap();
+        let mut pl = pl.unwrap();
+        assert!(req.chunked().unwrap());
+
+        buf.extend(b"4\r\n1111\r\n");
+        let msg = pl.decode(&mut buf).unwrap().unwrap();
+        assert_eq!(msg.chunk().as_ref(), b"1111");
+
+        buf.extend(b"4\r\ndata\r");
+        let msg = pl.decode(&mut buf).unwrap().unwrap();
+        assert_eq!(msg.chunk().as_ref(), b"data");
+
+        buf.extend(b"\n4");
+        assert!(pl.decode(&mut buf).unwrap().is_none());
+
+        buf.extend(b"\r");
+        assert!(pl.decode(&mut buf).unwrap().is_none());
+        buf.extend(b"\n");
+        assert!(pl.decode(&mut buf).unwrap().is_none());
+
+        buf.extend(b"li");
+        let msg = pl.decode(&mut buf).unwrap().unwrap();
+        assert_eq!(msg.chunk().as_ref(), b"li");
+
+        //trailers
+        //buf.feed_data("test: test\r\n");
+        //not_ready!(reader.parse(&mut buf, &mut readbuf));
+
+        buf.extend(b"ne\r\n0\r\n");
+        let msg = pl.decode(&mut buf).unwrap().unwrap();
+        assert_eq!(msg.chunk().as_ref(), b"ne");
+        assert!(pl.decode(&mut buf).unwrap().is_none());
+
+        buf.extend(b"\r\n");
+        assert!(pl.decode(&mut buf).unwrap().unwrap().eof());
+    }
+
+    #[test]
+    fn chunk_extension_quoted() {
+        let mut buf = BytesMut::from(
+            "GET /test HTTP/1.1\r\n\
+            Host: localhost:8080\r\n\
+            Transfer-Encoding: chunked\r\n\
+            \r\n\
+            2;hello=b;one=\"1 2 3\"\r\n\
+            xx",
+        );
+
+        let mut reader = MessageDecoder::<Request>::default();
+        let (_msg, pl) = reader.decode(&mut buf).unwrap().unwrap();
+        let mut pl = pl.unwrap();
+
+        let chunk = pl.decode(&mut buf).unwrap().unwrap();
+        assert_eq!(chunk, PayloadItem::Chunk(Bytes::from_static(b"xx")));
+    }
+
+    #[test]
+    fn hrs_chunk_extension_invalid() {
+        let mut buf = BytesMut::from(
+            "GET / HTTP/1.1\r\n\
+            Host: localhost:8080\r\n\
+            Transfer-Encoding: chunked\r\n\
+            \r\n\
+            2;x\nx\r\n\
+            4c\r\n\
+            0\r\n",
+        );
+
+        let mut reader = MessageDecoder::<Request>::default();
+        let (_msg, pl) = reader.decode(&mut buf).unwrap().unwrap();
+        let mut pl = pl.unwrap();
+
+        let err = pl.decode(&mut buf).unwrap_err();
+        assert!(err
+            .to_string()
+            .contains("Invalid character in chunk extension"));
+    }
+
+    #[test]
+    fn hrs_chunk_size_overflow() {
+        let mut buf = BytesMut::from(
+            "GET / HTTP/1.1\r\n\
+            Host: example.com\r\n\
+            Transfer-Encoding: chunked\r\n\
+            \r\n\
+            f0000000000000003\r\n\
+            abc\r\n\
+            0\r\n",
+        );
+
+        let mut reader = MessageDecoder::<Request>::default();
+        let (_msg, pl) = reader.decode(&mut buf).unwrap().unwrap();
+        let mut pl = pl.unwrap();
+
+        let err = pl.decode(&mut buf).unwrap_err();
+        assert!(err
+            .to_string()
+            .contains("Invalid chunk size line: Size is too big"));
+    }
+}

actix-http/src/h1/decoder.rs

@@ -1,18 +1,18 @@
-use std::convert::TryFrom;
-use std::io;
-use std::marker::PhantomData;
-use std::task::Poll;
+use std::{convert::TryFrom, io, marker::PhantomData, mem::MaybeUninit, task::Poll};
 
 use actix_codec::Decoder;
-use bytes::{Buf, Bytes, BytesMut};
+use bytes::{Bytes, BytesMut};
 use http::header::{HeaderName, HeaderValue};
 use http::{header, Method, StatusCode, Uri, Version};
 use log::{debug, error, trace};
 
-use crate::error::ParseError;
-use crate::header::HeaderMap;
-use crate::message::{ConnectionType, ResponseHead};
-use crate::request::Request;
+use super::chunked::ChunkedState;
+use crate::{
+    error::ParseError,
+    header::HeaderMap,
+    message::{ConnectionType, ResponseHead},
+    request::Request,
+};
 
 pub(crate) const MAX_BUFFER_SIZE: usize = 131_072;
 const MAX_HEADERS: usize = 96;
@@ -67,6 +67,7 @@ pub(crate) trait MessageType: Sized {
         let mut has_upgrade_websocket = false;
         let mut expect = false;
         let mut chunked = false;
+        let mut seen_te = false;
         let mut content_length = None;
 
         {
@@ -85,8 +86,17 @@ pub(crate) trait MessageType: Sized {
                 };
 
                 match name {
-                    header::CONTENT_LENGTH => {
-                        if let Ok(s) = value.to_str() {
+                    header::CONTENT_LENGTH if content_length.is_some() => {
+                        debug!("multiple Content-Length");
+                        return Err(ParseError::Header);
+                    }
+
+                    header::CONTENT_LENGTH => match value.to_str() {
+                        Ok(s) if s.trim().starts_with('+') => {
+                            debug!("illegal Content-Length: {:?}", s);
+                            return Err(ParseError::Header);
+                        }
+                        Ok(s) => {
                             if let Ok(len) = s.parse::<u64>() {
                                 if len != 0 {
                                     content_length = Some(len);
@@ -95,15 +105,31 @@ pub(crate) trait MessageType: Sized {
                                 debug!("illegal Content-Length: {:?}", s);
                                 return Err(ParseError::Header);
                             }
-                        } else {
+                        }
+                        Err(_) => {
                             debug!("illegal Content-Length: {:?}", value);
                             return Err(ParseError::Header);
                         }
-                    }
+                    },
+
                     // transfer-encoding
+                    header::TRANSFER_ENCODING if seen_te => {
+                        debug!("multiple Transfer-Encoding not allowed");
+                        return Err(ParseError::Header);
+                    }
+
                     header::TRANSFER_ENCODING => {
+                        seen_te = true;
+
                         if let Ok(s) = value.to_str().map(str::trim) {
-                            chunked = s.eq_ignore_ascii_case("chunked");
+                            if s.eq_ignore_ascii_case("chunked") {
+                                chunked = true;
+                            } else if s.eq_ignore_ascii_case("identity") {
+                                // allow silently since multiple TE headers are already checked
+                            } else {
+                                debug!("illegal Transfer-Encoding: {:?}", s);
+                                return Err(ParseError::Header);
+                            }
                         } else {
                             return Err(ParseError::Header);
                         }
@@ -186,10 +212,17 @@ impl MessageType for Request {
         let mut headers: [HeaderIndex; MAX_HEADERS] = EMPTY_HEADER_INDEX_ARRAY;
 
         let (len, method, uri, ver, h_len) = {
-            let mut parsed: [httparse::Header<'_>; MAX_HEADERS] = EMPTY_HEADER_ARRAY;
+            // SAFETY:
+            // Create an uninitialized array of `MaybeUninit`. The `assume_init` is
+            // safe because the type we are claiming to have initialized here is a
+            // bunch of `MaybeUninit`s, which do not require initialization.
+            let mut parsed = unsafe {
+                MaybeUninit::<[MaybeUninit<httparse::Header<'_>>; MAX_HEADERS]>::uninit()
+                    .assume_init()
+            };
 
-            let mut req = httparse::Request::new(&mut parsed);
-            match req.parse(src)? {
+            let mut req = httparse::Request::new(&mut []);
+            match req.parse_with_uninit_headers(src, &mut parsed)? {
                 httparse::Status::Complete(len) => {
                     let method = Method::from_bytes(req.method.unwrap().as_bytes())
                         .map_err(|_| ParseError::Method)?;
@@ -408,20 +441,6 @@ enum Kind {
     Eof,
 }
 
-#[derive(Debug, PartialEq, Clone)]
-enum ChunkedState {
-    Size,
-    SizeLws,
-    Extension,
-    SizeLf,
-    Body,
-    BodyCr,
-    BodyLf,
-    EndCr,
-    EndLf,
-    End,
-}
-
 impl Decoder for PayloadDecoder {
     type Item = PayloadItem;
     type Error = io::Error;
@@ -451,19 +470,23 @@ impl Decoder for PayloadDecoder {
             Kind::Chunked(ref mut state, ref mut size) => {
                 loop {
                     let mut buf = None;
+
                     // advances the chunked state
                     *state = match state.step(src, size, &mut buf) {
                         Poll::Pending => return Ok(None),
                         Poll::Ready(Ok(state)) => state,
                         Poll::Ready(Err(e)) => return Err(e),
                     };
+
                     if *state == ChunkedState::End {
                         trace!("End of chunked stream");
                         return Ok(Some(PayloadItem::Eof));
                     }
+
                     if let Some(buf) = buf {
                         return Ok(Some(PayloadItem::Chunk(buf)));
                     }
+
                     if src.is_empty() {
                         return Ok(None);
                     }
@@ -480,201 +503,40 @@ impl Decoder for PayloadDecoder {
     }
 }
 
-macro_rules! byte (
-    ($rdr:ident) => ({
-        if $rdr.len() > 0 {
-            let b = $rdr[0];
-            $rdr.advance(1);
-            b
-        } else {
-            return Poll::Pending
-        }
-    })
-);
-
-impl ChunkedState {
-    fn step(
-        &self,
-        body: &mut BytesMut,
-        size: &mut u64,
-        buf: &mut Option<Bytes>,
-    ) -> Poll<Result<ChunkedState, io::Error>> {
-        use self::ChunkedState::*;
-        match *self {
-            Size => ChunkedState::read_size(body, size),
-            SizeLws => ChunkedState::read_size_lws(body),
-            Extension => ChunkedState::read_extension(body),
-            SizeLf => ChunkedState::read_size_lf(body, size),
-            Body => ChunkedState::read_body(body, size, buf),
-            BodyCr => ChunkedState::read_body_cr(body),
-            BodyLf => ChunkedState::read_body_lf(body),
-            EndCr => ChunkedState::read_end_cr(body),
-            EndLf => ChunkedState::read_end_lf(body),
-            End => Poll::Ready(Ok(ChunkedState::End)),
-        }
-    }
-
-    fn read_size(
-        rdr: &mut BytesMut,
-        size: &mut u64,
-    ) -> Poll<Result<ChunkedState, io::Error>> {
-        let radix = 16;
-        match byte!(rdr) {
-            b @ b'0'..=b'9' => {
-                *size *= radix;
-                *size += u64::from(b - b'0');
-            }
-            b @ b'a'..=b'f' => {
-                *size *= radix;
-                *size += u64::from(b + 10 - b'a');
-            }
-            b @ b'A'..=b'F' => {
-                *size *= radix;
-                *size += u64::from(b + 10 - b'A');
-            }
-            b'\t' | b' ' => return Poll::Ready(Ok(ChunkedState::SizeLws)),
-            b';' => return Poll::Ready(Ok(ChunkedState::Extension)),
-            b'\r' => return Poll::Ready(Ok(ChunkedState::SizeLf)),
-            _ => {
-                return Poll::Ready(Err(io::Error::new(
-                    io::ErrorKind::InvalidInput,
-                    "Invalid chunk size line: Invalid Size",
-                )));
-            }
-        }
-        Poll::Ready(Ok(ChunkedState::Size))
-    }
-
-    fn read_size_lws(rdr: &mut BytesMut) -> Poll<Result<ChunkedState, io::Error>> {
-        trace!("read_size_lws");
-        match byte!(rdr) {
-            // LWS can follow the chunk size, but no more digits can come
-            b'\t' | b' ' => Poll::Ready(Ok(ChunkedState::SizeLws)),
-            b';' => Poll::Ready(Ok(ChunkedState::Extension)),
-            b'\r' => Poll::Ready(Ok(ChunkedState::SizeLf)),
-            _ => Poll::Ready(Err(io::Error::new(
-                io::ErrorKind::InvalidInput,
-                "Invalid chunk size linear white space",
-            ))),
-        }
-    }
-    fn read_extension(rdr: &mut BytesMut) -> Poll<Result<ChunkedState, io::Error>> {
-        match byte!(rdr) {
-            b'\r' => Poll::Ready(Ok(ChunkedState::SizeLf)),
-            _ => Poll::Ready(Ok(ChunkedState::Extension)), // no supported extensions
-        }
-    }
-    fn read_size_lf(
-        rdr: &mut BytesMut,
-        size: &mut u64,
-    ) -> Poll<Result<ChunkedState, io::Error>> {
-        match byte!(rdr) {
-            b'\n' if *size > 0 => Poll::Ready(Ok(ChunkedState::Body)),
-            b'\n' if *size == 0 => Poll::Ready(Ok(ChunkedState::EndCr)),
-            _ => Poll::Ready(Err(io::Error::new(
-                io::ErrorKind::InvalidInput,
-                "Invalid chunk size LF",
-            ))),
-        }
-    }
-
-    fn read_body(
-        rdr: &mut BytesMut,
-        rem: &mut u64,
-        buf: &mut Option<Bytes>,
-    ) -> Poll<Result<ChunkedState, io::Error>> {
-        trace!("Chunked read, remaining={:?}", rem);
-
-        let len = rdr.len() as u64;
-        if len == 0 {
-            Poll::Ready(Ok(ChunkedState::Body))
-        } else {
-            let slice;
-            if *rem > len {
-                slice = rdr.split().freeze();
-                *rem -= len;
-            } else {
-                slice = rdr.split_to(*rem as usize).freeze();
-                *rem = 0;
-            }
-            *buf = Some(slice);
-            if *rem > 0 {
-                Poll::Ready(Ok(ChunkedState::Body))
-            } else {
-                Poll::Ready(Ok(ChunkedState::BodyCr))
-            }
-        }
-    }
-
-    fn read_body_cr(rdr: &mut BytesMut) -> Poll<Result<ChunkedState, io::Error>> {
-        match byte!(rdr) {
-            b'\r' => Poll::Ready(Ok(ChunkedState::BodyLf)),
-            _ => Poll::Ready(Err(io::Error::new(
-                io::ErrorKind::InvalidInput,
-                "Invalid chunk body CR",
-            ))),
-        }
-    }
-    fn read_body_lf(rdr: &mut BytesMut) -> Poll<Result<ChunkedState, io::Error>> {
-        match byte!(rdr) {
-            b'\n' => Poll::Ready(Ok(ChunkedState::Size)),
-            _ => Poll::Ready(Err(io::Error::new(
-                io::ErrorKind::InvalidInput,
-                "Invalid chunk body LF",
-            ))),
-        }
-    }
-    fn read_end_cr(rdr: &mut BytesMut) -> Poll<Result<ChunkedState, io::Error>> {
-        match byte!(rdr) {
-            b'\r' => Poll::Ready(Ok(ChunkedState::EndLf)),
-            _ => Poll::Ready(Err(io::Error::new(
-                io::ErrorKind::InvalidInput,
-                "Invalid chunk end CR",
-            ))),
-        }
-    }
-    fn read_end_lf(rdr: &mut BytesMut) -> Poll<Result<ChunkedState, io::Error>> {
-        match byte!(rdr) {
-            b'\n' => Poll::Ready(Ok(ChunkedState::End)),
-            _ => Poll::Ready(Err(io::Error::new(
-                io::ErrorKind::InvalidInput,
-                "Invalid chunk end LF",
-            ))),
-        }
-    }
-}
-
 #[cfg(test)]
 mod tests {
     use bytes::{Bytes, BytesMut};
     use http::{Method, Version};
 
     use super::*;
-    use crate::error::ParseError;
-    use crate::http::header::{HeaderName, SET_COOKIE};
-    use crate::HttpMessage;
+    use crate::{
+        error::ParseError,
+        http::header::{HeaderName, SET_COOKIE},
+        HttpMessage as _,
+    };
 
     impl PayloadType {
-        fn unwrap(self) -> PayloadDecoder {
+        pub(crate) fn unwrap(self) -> PayloadDecoder {
             match self {
                 PayloadType::Payload(pl) => pl,
                 _ => panic!(),
             }
         }
 
-        fn is_unhandled(&self) -> bool {
+        pub(crate) fn is_unhandled(&self) -> bool {
             matches!(self, PayloadType::Stream(_))
         }
     }
 
     impl PayloadItem {
-        fn chunk(self) -> Bytes {
+        pub(crate) fn chunk(self) -> Bytes {
             match self {
                 PayloadItem::Chunk(chunk) => chunk,
                 _ => panic!("error"),
             }
         }
-        fn eof(&self) -> bool {
+
+        pub(crate) fn eof(&self) -> bool {
             matches!(*self, PayloadItem::Eof)
         }
     }
@@ -967,34 +829,6 @@ mod tests {
         assert!(req.upgrade());
     }
 
-    #[test]
-    fn test_request_chunked() {
-        let mut buf = BytesMut::from(
-            "GET /test HTTP/1.1\r\n\
-             transfer-encoding: chunked\r\n\r\n",
-        );
-        let req = parse_ready!(&mut buf);
-
-        if let Ok(val) = req.chunked() {
-            assert!(val);
-        } else {
-            unreachable!("Error");
-        }
-
-        // intentional typo in "chunked"
-        let mut buf = BytesMut::from(
-            "GET /test HTTP/1.1\r\n\
-             transfer-encoding: chnked\r\n\r\n",
-        );
-        let req = parse_ready!(&mut buf);
-
-        if let Ok(val) = req.chunked() {
-            assert!(!val);
-        } else {
-            unreachable!("Error");
-        }
-    }
-
     #[test]
     fn test_headers_content_length_err_1() {
         let mut buf = BytesMut::from(
@@ -1112,126 +946,6 @@ mod tests {
         expect_parse_err!(&mut buf);
     }
 
-    #[test]
-    fn test_http_request_chunked_payload() {
-        let mut buf = BytesMut::from(
-            "GET /test HTTP/1.1\r\n\
-             transfer-encoding: chunked\r\n\r\n",
-        );
-        let mut reader = MessageDecoder::<Request>::default();
-        let (req, pl) = reader.decode(&mut buf).unwrap().unwrap();
-        let mut pl = pl.unwrap();
-        assert!(req.chunked().unwrap());
-
-        buf.extend(b"4\r\ndata\r\n4\r\nline\r\n0\r\n\r\n");
-        assert_eq!(
-            pl.decode(&mut buf).unwrap().unwrap().chunk().as_ref(),
-            b"data"
-        );
-        assert_eq!(
-            pl.decode(&mut buf).unwrap().unwrap().chunk().as_ref(),
-            b"line"
-        );
-        assert!(pl.decode(&mut buf).unwrap().unwrap().eof());
-    }
-
-    #[test]
-    fn test_http_request_chunked_payload_and_next_message() {
-        let mut buf = BytesMut::from(
-            "GET /test HTTP/1.1\r\n\
-             transfer-encoding: chunked\r\n\r\n",
-        );
-        let mut reader = MessageDecoder::<Request>::default();
-        let (req, pl) = reader.decode(&mut buf).unwrap().unwrap();
-        let mut pl = pl.unwrap();
-        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 = pl.decode(&mut buf).unwrap().unwrap();
-        assert_eq!(msg.chunk().as_ref(), b"data");
-        let msg = pl.decode(&mut buf).unwrap().unwrap();
-        assert_eq!(msg.chunk().as_ref(), b"line");
-        let msg = pl.decode(&mut buf).unwrap().unwrap();
-        assert!(msg.eof());
-
-        let (req, _) = reader.decode(&mut buf).unwrap().unwrap();
-        assert!(req.chunked().unwrap());
-        assert_eq!(*req.method(), Method::POST);
-        assert!(req.chunked().unwrap());
-    }
-
-    #[test]
-    fn test_http_request_chunked_payload_chunks() {
-        let mut buf = BytesMut::from(
-            "GET /test HTTP/1.1\r\n\
-             transfer-encoding: chunked\r\n\r\n",
-        );
-
-        let mut reader = MessageDecoder::<Request>::default();
-        let (req, pl) = reader.decode(&mut buf).unwrap().unwrap();
-        let mut pl = pl.unwrap();
-        assert!(req.chunked().unwrap());
-
-        buf.extend(b"4\r\n1111\r\n");
-        let msg = pl.decode(&mut buf).unwrap().unwrap();
-        assert_eq!(msg.chunk().as_ref(), b"1111");
-
-        buf.extend(b"4\r\ndata\r");
-        let msg = pl.decode(&mut buf).unwrap().unwrap();
-        assert_eq!(msg.chunk().as_ref(), b"data");
-
-        buf.extend(b"\n4");
-        assert!(pl.decode(&mut buf).unwrap().is_none());
-
-        buf.extend(b"\r");
-        assert!(pl.decode(&mut buf).unwrap().is_none());
-        buf.extend(b"\n");
-        assert!(pl.decode(&mut buf).unwrap().is_none());
-
-        buf.extend(b"li");
-        let msg = pl.decode(&mut buf).unwrap().unwrap();
-        assert_eq!(msg.chunk().as_ref(), b"li");
-
-        //trailers
-        //buf.feed_data("test: test\r\n");
-        //not_ready!(reader.parse(&mut buf, &mut readbuf));
-
-        buf.extend(b"ne\r\n0\r\n");
-        let msg = pl.decode(&mut buf).unwrap().unwrap();
-        assert_eq!(msg.chunk().as_ref(), b"ne");
-        assert!(pl.decode(&mut buf).unwrap().is_none());
-
-        buf.extend(b"\r\n");
-        assert!(pl.decode(&mut buf).unwrap().unwrap().eof());
-    }
-
-    #[test]
-    fn test_parse_chunked_payload_chunk_extension() {
-        let mut buf = BytesMut::from(
-            "GET /test HTTP/1.1\r\n\
-            transfer-encoding: chunked\r\n\
-            \r\n",
-        );
-
-        let mut reader = MessageDecoder::<Request>::default();
-        let (msg, pl) = reader.decode(&mut buf).unwrap().unwrap();
-        let mut pl = pl.unwrap();
-        assert!(msg.chunked().unwrap());
-
-        buf.extend(b"4;test\r\ndata\r\n4\r\nline\r\n0\r\n\r\n"); // test: test\r\n\r\n")
-        let chunk = pl.decode(&mut buf).unwrap().unwrap().chunk();
-        assert_eq!(chunk, Bytes::from_static(b"data"));
-        let chunk = pl.decode(&mut buf).unwrap().unwrap().chunk();
-        assert_eq!(chunk, Bytes::from_static(b"line"));
-        let msg = pl.decode(&mut buf).unwrap().unwrap();
-        assert!(msg.eof());
-    }
-
     #[test]
     fn test_response_http10_read_until_eof() {
         let mut buf = BytesMut::from("HTTP/1.0 200 Ok\r\n\r\ntest data");
@@ -1243,4 +957,84 @@ mod tests {
         let chunk = pl.decode(&mut buf).unwrap().unwrap();
         assert_eq!(chunk, PayloadItem::Chunk(Bytes::from_static(b"test data")));
     }
+
+    #[test]
+    fn hrs_multiple_content_length() {
+        let mut buf = BytesMut::from(
+            "GET / HTTP/1.1\r\n\
+            Host: example.com\r\n\
+            Content-Length: 4\r\n\
+            Content-Length: 2\r\n\
+            \r\n\
+            abcd",
+        );
+
+        expect_parse_err!(&mut buf);
+    }
+
+    #[test]
+    fn hrs_content_length_plus() {
+        let mut buf = BytesMut::from(
+            "GET / HTTP/1.1\r\n\
+            Host: example.com\r\n\
+            Content-Length: +3\r\n\
+            \r\n\
+            000",
+        );
+
+        expect_parse_err!(&mut buf);
+    }
+
+    #[test]
+    fn hrs_unknown_transfer_encoding() {
+        let mut buf = BytesMut::from(
+            "GET / HTTP/1.1\r\n\
+            Host: example.com\r\n\
+            Transfer-Encoding: JUNK\r\n\
+            Transfer-Encoding: chunked\r\n\
+            \r\n\
+            5\r\n\
+            hello\r\n\
+            0",
+        );
+
+        expect_parse_err!(&mut buf);
+    }
+
+    #[test]
+    fn hrs_multiple_transfer_encoding() {
+        let mut buf = BytesMut::from(
+            "GET / HTTP/1.1\r\n\
+            Host: example.com\r\n\
+            Content-Length: 51\r\n\
+            Transfer-Encoding: identity\r\n\
+            Transfer-Encoding: chunked\r\n\
+            \r\n\
+            0\r\n\
+            \r\n\
+            GET /forbidden HTTP/1.1\r\n\
+            Host: example.com\r\n\r\n",
+        );
+
+        expect_parse_err!(&mut buf);
+    }
+
+    #[test]
+    fn transfer_encoding_agrees() {
+        let mut buf = BytesMut::from(
+            "GET /test HTTP/1.1\r\n\
+            Host: example.com\r\n\
+            Content-Length: 3\r\n\
+            Transfer-Encoding: identity\r\n\
+            \r\n\
+            0\r\n",
+        );
+
+        let mut reader = MessageDecoder::<Request>::default();
+        let (_msg, pl) = reader.decode(&mut buf).unwrap().unwrap();
+        let mut pl = pl.unwrap();
+
+        let chunk = pl.decode(&mut buf).unwrap().unwrap();
+        assert_eq!(chunk, PayloadItem::Chunk(Bytes::from_static(b"0\r\n")));
+    }
 }

actix-http/src/h1/dispatcher.rs

@@ -1060,7 +1060,7 @@ mod tests {
     fn stabilize_date_header(payload: &mut [u8]) {
         let mut from = 0;
 
-        while let Some(pos) = find_slice(&payload, b"date", from) {
+        while let Some(pos) = find_slice(payload, b"date", from) {
             payload[(from + pos)..(from + pos + 35)]
                 .copy_from_slice(b"date: Thu, 01 Jan 1970 12:34:56 UTC");
             from += 35;

actix-http/src/h1/encoder.rs

@@ -81,6 +81,7 @@ pub(crate) trait MessageType: Sized {
         match length {
             BodySize::Stream => {
                 if chunked {
+                    skip_len = true;
                     if camel_case {
                         dst.put_slice(b"\r\nTransfer-Encoding: chunked\r\n")
                     } else {
@@ -174,7 +175,7 @@ pub(crate) trait MessageType: Sized {
                 unsafe {
                     if camel_case {
                         // use Camel-Case headers
-                        write_camel_case(k, from_raw_parts_mut(buf, k_len));
+                        write_camel_case(k, buf, k_len);
                     } else {
                         write_data(k, buf, k_len);
                     }
@@ -472,15 +473,22 @@ impl TransferEncoding {
 }
 
 /// # Safety
-/// Callers must ensure that the given length matches given value length.
+/// Callers must ensure that the given `len` matches the given `value` length and that `buf` is
+/// valid for writes of at least `len` bytes.
 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]) {
+/// # Safety
+/// Callers must ensure that the given `len` matches the given `value` length and that `buf` is
+/// valid for writes of at least `len` bytes.
+unsafe fn write_camel_case(value: &[u8], buf: *mut u8, len: usize) {
     // first copy entire (potentially wrong) slice to output
-    buffer[..value.len()].copy_from_slice(value);
+    write_data(value, buf, len);
+
+    // SAFETY: We just initialized the buffer with `value`
+    let buffer = from_raw_parts_mut(buf, len);
 
     let mut iter = value.iter();
 

actix-http/src/h1/mod.rs

@@ -1,6 +1,8 @@
 //! HTTP/1 protocol implementation.
+
 use bytes::{Bytes, BytesMut};
 
+mod chunked;
 mod client;
 mod codec;
 mod decoder;

actix-http/src/h1/utils.rs

@@ -63,7 +63,6 @@ where
                         .is_write_buf_full()
                 {
                     let next =
-                        // TODO: MSRV 1.51: poll_map_err
                         match this.body.as_mut().as_pin_mut().unwrap().poll_next(cx) {
                             Poll::Ready(Some(Ok(item))) => Poll::Ready(Some(item)),
                             Poll::Ready(Some(Err(err))) => {

actix-http/src/header/map.rs

@@ -684,7 +684,7 @@ impl<'a> Iterator for Iter<'a> {
 
     fn next(&mut self) -> Option<Self::Item> {
         // handle in-progress multi value lists first
-        if let Some((ref name, ref mut vals)) = self.multi_inner {
+        if let Some((name, ref mut vals)) = self.multi_inner {
             match vals.get(self.multi_idx) {
                 Some(val) => {
                     self.multi_idx += 1;

actix-http/src/header/shared/content_encoding.rs

@@ -1,5 +1,6 @@
-use std::{convert::Infallible, str::FromStr};
+use std::{convert::TryFrom, str::FromStr};
 
+use derive_more::{Display, Error};
 use http::header::InvalidHeaderValue;
 
 use crate::{
@@ -8,8 +9,16 @@ use crate::{
     HttpMessage,
 };
 
+/// Error return when a content encoding is unknown.
+///
+/// Example: 'compress'
+#[derive(Debug, Display, Error)]
+#[display(fmt = "unsupported content encoding")]
+pub struct ContentEncodingParseError;
+
 /// Represents a supported content encoding.
-#[derive(Copy, Clone, PartialEq, Debug)]
+#[derive(Debug, Clone, Copy, PartialEq)]
+#[non_exhaustive]
 pub enum ContentEncoding {
     /// Automatically select encoding based on encoding negotiation.
     Auto,
@@ -37,7 +46,7 @@ impl ContentEncoding {
         matches!(self, ContentEncoding::Identity | ContentEncoding::Auto)
     }
 
-    /// Convert content encoding to string
+    /// Convert content encoding to string.
     #[inline]
     pub fn as_str(self) -> &'static str {
         match self {
@@ -48,18 +57,6 @@ impl ContentEncoding {
             ContentEncoding::Identity | ContentEncoding::Auto => "identity",
         }
     }
-
-    /// Default Q-factor (quality) value.
-    #[inline]
-    pub fn quality(self) -> f64 {
-        match self {
-            ContentEncoding::Br => 1.1,
-            ContentEncoding::Gzip => 1.0,
-            ContentEncoding::Deflate => 0.9,
-            ContentEncoding::Identity | ContentEncoding::Auto => 0.1,
-            ContentEncoding::Zstd => 0.0,
-        }
-    }
 }
 
 impl Default for ContentEncoding {
@@ -69,31 +66,33 @@ impl Default for ContentEncoding {
 }
 
 impl FromStr for ContentEncoding {
-    type Err = Infallible;
+    type Err = ContentEncodingParseError;
 
     fn from_str(val: &str) -> Result<Self, Self::Err> {
-        Ok(Self::from(val))
-    }
-}
-
-impl From<&str> for ContentEncoding {
-    fn from(val: &str) -> ContentEncoding {
         let val = val.trim();
 
         if val.eq_ignore_ascii_case("br") {
-            ContentEncoding::Br
+            Ok(ContentEncoding::Br)
         } else if val.eq_ignore_ascii_case("gzip") {
-            ContentEncoding::Gzip
+            Ok(ContentEncoding::Gzip)
         } else if val.eq_ignore_ascii_case("deflate") {
-            ContentEncoding::Deflate
+            Ok(ContentEncoding::Deflate)
         } else if val.eq_ignore_ascii_case("zstd") {
-            ContentEncoding::Zstd
+            Ok(ContentEncoding::Zstd)
         } else {
-            ContentEncoding::default()
+            Err(ContentEncodingParseError)
         }
     }
 }
 
+impl TryFrom<&str> for ContentEncoding {
+    type Error = ContentEncodingParseError;
+
+    fn try_from(val: &str) -> Result<Self, Self::Error> {
+        val.parse()
+    }
+}
+
 impl IntoHeaderValue for ContentEncoding {
     type Error = InvalidHeaderValue;
 

actix-http/src/header/shared/quality_item.rs

@@ -1,11 +1,14 @@
 use std::{
     cmp,
     convert::{TryFrom, TryInto},
-    fmt, str,
+    fmt,
+    str::{self, FromStr},
 };
 
 use derive_more::{Display, Error};
 
+use crate::error::ParseError;
+
 const MAX_QUALITY: u16 = 1000;
 const MAX_FLOAT_QUALITY: f32 = 1.0;
 
@@ -113,12 +116,12 @@ impl<T: fmt::Display> fmt::Display for QualityItem<T> {
     }
 }
 
-impl<T: str::FromStr> str::FromStr for QualityItem<T> {
-    type Err = crate::error::ParseError;
+impl<T: FromStr> FromStr for QualityItem<T> {
+    type Err = ParseError;
 
-    fn from_str(qitem_str: &str) -> Result<QualityItem<T>, crate::error::ParseError> {
+    fn from_str(qitem_str: &str) -> Result<Self, Self::Err> {
         if !qitem_str.is_ascii() {
-            return Err(crate::error::ParseError::Header);
+            return Err(ParseError::Header);
         }
 
         // Set defaults used if parsing fails.
@@ -139,7 +142,7 @@ impl<T: str::FromStr> str::FromStr for QualityItem<T> {
             if parts[0].len() < 2 {
                 // Can't possibly be an attribute since an attribute needs at least a name followed
                 // by an equals sign. And bare identifiers are forbidden.
-                return Err(crate::error::ParseError::Header);
+                return Err(ParseError::Header);
             }
 
             let start = &parts[0][0..2];
@@ -148,25 +151,21 @@ impl<T: str::FromStr> str::FromStr for QualityItem<T> {
                 let q_val = &parts[0][2..];
                 if q_val.len() > 5 {
                     // longer than 5 indicates an over-precise q-factor
-                    return Err(crate::error::ParseError::Header);
+                    return Err(ParseError::Header);
                 }
 
-                let q_value = q_val
-                    .parse::<f32>()
-                    .map_err(|_| crate::error::ParseError::Header)?;
+                let q_value = q_val.parse::<f32>().map_err(|_| ParseError::Header)?;
 
                 if (0f32..=1f32).contains(&q_value) {
                     quality = q_value;
                     raw_item = parts[1];
                 } else {
-                    return Err(crate::error::ParseError::Header);
+                    return Err(ParseError::Header);
                 }
             }
         }
 
-        let item = raw_item
-            .parse::<T>()
-            .map_err(|_| crate::error::ParseError::Header)?;
+        let item = raw_item.parse::<T>().map_err(|_| ParseError::Header)?;
 
         // we already checked above that the quality is within range
         Ok(QualityItem::new(item, Quality::from_f32(quality)))
@@ -224,7 +223,7 @@ mod tests {
         }
     }
 
-    impl str::FromStr for Encoding {
+    impl FromStr for Encoding {
         type Err = crate::error::ParseError;
         fn from_str(s: &str) -> Result<Encoding, crate::error::ParseError> {
             use Encoding::*;

actix-http/src/lib.rs

@@ -14,7 +14,7 @@
 //! [rustls]: https://crates.io/crates/rustls
 //! [trust-dns]: https://crates.io/crates/trust-dns
 
-#![deny(rust_2018_idioms, nonstandard_style)]
+#![deny(rust_2018_idioms, nonstandard_style, clippy::uninit_assumed_init)]
 #![allow(
     clippy::type_complexity,
     clippy::too_many_arguments,

actix-http/src/message.rs

@@ -209,7 +209,7 @@ impl RequestHeadType {
 impl AsRef<RequestHead> for RequestHeadType {
     fn as_ref(&self) -> &RequestHead {
         match self {
-            RequestHeadType::Owned(head) => &head,
+            RequestHeadType::Owned(head) => head,
             RequestHeadType::Rc(head, _) => head.as_ref(),
         }
     }
@@ -363,7 +363,7 @@ impl<T: Head> std::ops::Deref for Message<T> {
     type Target = T;
 
     fn deref(&self) -> &Self::Target {
-        &self.head.as_ref()
+        self.head.as_ref()
     }
 }
 

actix-http/src/request.rs

@@ -15,7 +15,7 @@ use crate::{
     HttpMessage,
 };
 
-/// Request
+/// An HTTP request.
 pub struct Request<P = PayloadStream> {
     pub(crate) payload: Payload<P>,
     pub(crate) head: Message<RequestHead>,

actix-multipart/CHANGES.md

@@ -3,6 +3,10 @@
 ## Unreleased - 2021-xx-xx
 
 
+## 0.4.0-beta.6 - 2021-09-09
+* Minimum supported Rust version (MSRV) is now 1.51.
+
+
 ## 0.4.0-beta.5 - 2021-06-17
 * No notable changes.
 

actix-multipart/Cargo.toml

@@ -1,13 +1,11 @@
 [package]
 name = "actix-multipart"
-version = "0.4.0-beta.5"
+version = "0.4.0-beta.6"
 authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
 description = "Multipart form support for Actix Web"
-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-multipart"
 license = "MIT OR Apache-2.0"
 edition = "2018"
 
@@ -16,7 +14,7 @@ name = "actix_multipart"
 path = "src/lib.rs"
 
 [dependencies]
-actix-web = { version = "4.0.0-beta.8", default-features = false }
+actix-web = { version = "4.0.0-beta.9", default-features = false }
 actix-utils = "3.0.0"
 
 bytes = "1"
@@ -31,6 +29,6 @@ twoway = "0.2"
 
 [dev-dependencies]
 actix-rt = "2.2"
-actix-http = "3.0.0-beta.8"
+actix-http = "3.0.0-beta.10"
 tokio = { version = "1", features = ["sync"] }
 tokio-stream = "0.1"

actix-multipart/README.md

@@ -3,15 +3,15 @@
 > Multipart form support for Actix Web.
 
 [![crates.io](https://img.shields.io/crates/v/actix-multipart?label=latest)](https://crates.io/crates/actix-multipart)
-[![Documentation](https://docs.rs/actix-multipart/badge.svg?version=0.4.0-beta.5)](https://docs.rs/actix-multipart/0.4.0-beta.5)
-[![Version](https://img.shields.io/badge/rustc-1.46+-ab6000.svg)](https://blog.rust-lang.org/2020/03/12/Rust-1.46.html)
+[![Documentation](https://docs.rs/actix-multipart/badge.svg?version=0.4.0-beta.6)](https://docs.rs/actix-multipart/0.4.0-beta.6)
+[![Version](https://img.shields.io/badge/rustc-1.51+-ab6000.svg)](https://blog.rust-lang.org/2020/03/12/Rust-1.51.html)
 ![MIT or Apache 2.0 licensed](https://img.shields.io/crates/l/actix-multipart.svg)
 <br />
-[![dependency status](https://deps.rs/crate/actix-multipart/0.4.0-beta.5/status.svg)](https://deps.rs/crate/actix-multipart/0.4.0-beta.5)
+[![dependency status](https://deps.rs/crate/actix-multipart/0.4.0-beta.6/status.svg)](https://deps.rs/crate/actix-multipart/0.4.0-beta.6)
 [![Download](https://img.shields.io/crates/d/actix-multipart.svg)](https://crates.io/crates/actix-multipart)
 [![Chat on Discord](https://img.shields.io/discord/771444961383153695?label=chat&logo=discord)](https://discord.gg/NWpN5mmg3x)
 
 ## Documentation & Resources
 
 - [API Documentation](https://docs.rs/actix-multipart)
-- Minimum Supported Rust Version (MSRV): 1.46.0
+- Minimum Supported Rust Version (MSRV): 1.51.0

actix-router/CHANGES.md

@@ -0,0 +1,131 @@
+# Changes
+
+## Unreleased - 2021-xx-xx
+
+
+## 0.5.0-beta.2 - 2021-09-09
+* Introduce `ResourceDef::join`. [#380]
+* Disallow prefix routes with tail segments. [#379]
+* Enforce path separators on dynamic prefixes. [#378]
+* Improve malformed path error message. [#384]
+* Prefix segments now always end with with a segment delimiter or end-of-input. [#2355]
+* Prefix segments with trailing slashes define a trailing empty segment. [#2355]
+* Support multi-pattern prefixes and joins. [#2356]
+* `ResourceDef::pattern` now returns the first pattern in multi-pattern resources. [#2356]
+* Support `build_resource_path` on multi-pattern resources. [#2356]
+* Minimum supported Rust version (MSRV) is now 1.51.
+
+[#378]: https://github.com/actix/actix-net/pull/378
+[#379]: https://github.com/actix/actix-net/pull/379
+[#380]: https://github.com/actix/actix-net/pull/380
+[#384]: https://github.com/actix/actix-net/pull/384
+[#2355]: https://github.com/actix/actix-web/pull/2355
+[#2356]: https://github.com/actix/actix-web/pull/2356
+
+
+## 0.5.0-beta.1 - 2021-07-20
+* Fix a bug in multi-patterns where static patterns are interpreted as regex. [#366]
+* Introduce `ResourceDef::pattern_iter` to get an iterator over all patterns in a multi-pattern resource. [#373]
+* Fix segment interpolation leaving `Path` in unintended state after matching. [#368]
+* Fix `ResourceDef` `PartialEq` implementation. [#373]
+* Re-work `IntoPatterns` trait, adding a `Patterns` enum. [#372]
+* Implement `IntoPatterns` for `bytestring::ByteString`. [#372]
+* Rename `Path::{len => segment_count}` to be more descriptive of it's purpose. [#370]
+* Rename `ResourceDef::{resource_path => resource_path_from_iter}`. [#371]
+* `ResourceDef::resource_path_from_iter` now takes an `IntoIterator`. [#373]
+* Rename `ResourceDef::{resource_path_named => resource_path_from_map}`. [#371]
+* Rename `ResourceDef::{is_prefix_match => find_match}`. [#373]
+* Rename `ResourceDef::{match_path => capture_match_info}`. [#373]
+* Rename `ResourceDef::{match_path_checked => capture_match_info_fn}`. [#373]
+* Remove `ResourceDef::name_mut` and introduce `ResourceDef::set_name`. [#373]
+* Rename `Router::{*_checked => *_fn}`. [#373]
+* Return type of `ResourceDef::name` is now `Option<&str>`. [#373]
+* Return type of `ResourceDef::pattern` is now `Option<&str>`. [#373]
+
+[#368]: https://github.com/actix/actix-net/pull/368
+[#366]: https://github.com/actix/actix-net/pull/366
+[#368]: https://github.com/actix/actix-net/pull/368
+[#370]: https://github.com/actix/actix-net/pull/370
+[#371]: https://github.com/actix/actix-net/pull/371
+[#372]: https://github.com/actix/actix-net/pull/372
+[#373]: https://github.com/actix/actix-net/pull/373
+
+
+## 0.4.0 - 2021-06-06
+* When matching path parameters, `%25` is now kept in the percent-encoded form; no longer decoded to `%`. [#357]
+* Path tail patterns now match new lines (`\n`) in request URL. [#360]
+* Fixed a safety bug where `Path` could return a malformed string after percent decoding. [#359]
+* Methods `Path::{add, add_static}` now take `impl Into<Cow<'static, str>>`. [#345]
+
+[#345]: https://github.com/actix/actix-net/pull/345
+[#357]: https://github.com/actix/actix-net/pull/357
+[#359]: https://github.com/actix/actix-net/pull/359
+[#360]: https://github.com/actix/actix-net/pull/360
+
+
+## 0.3.0 - 2019-12-31
+* Version was yanked previously. See https://crates.io/crates/actix-router/0.3.0
+
+
+## 0.2.7 - 2021-02-06
+* Add `Router::recognize_checked` [#247]
+
+[#247]: https://github.com/actix/actix-net/pull/247
+
+
+## 0.2.6 - 2021-01-09
+* Use `bytestring` version range compatible with Bytes v1.0. [#246]
+
+[#246]: https://github.com/actix/actix-net/pull/246
+
+
+## 0.2.5 - 2020-09-20
+* Fix `from_hex()` method
+
+
+## 0.2.4 - 2019-12-31
+* Add `ResourceDef::resource_path_named()` path generation method
+
+
+## 0.2.3 - 2019-12-25
+* Add impl `IntoPattern` for `&String`
+
+
+## 0.2.2 - 2019-12-25
+* Use `IntoPattern` for `RouterBuilder::path()`
+
+
+## 0.2.1 - 2019-12-25
+* Add `IntoPattern` trait
+* Add multi-pattern resources
+
+
+## 0.2.0 - 2019-12-07
+* Update http to 0.2
+* Update regex to 1.3
+* Use bytestring instead of string
+
+
+## 0.1.5 - 2019-05-15
+* Remove debug prints
+
+
+## 0.1.4 - 2019-05-15
+* Fix checked resource match
+
+
+## 0.1.3 - 2019-04-22
+* Added support for `remainder match` (i.e "/path/{tail}*")
+
+
+## 0.1.2 - 2019-04-07
+* Export `Quoter` type
+* Allow to reset `Path` instance
+
+
+## 0.1.1 - 2019-04-03
+* Get dynamic segment by name instead of iterator.
+
+
+## 0.1.0 - 2019-03-09
+* Initial release

actix-router/Cargo.toml

@@ -0,0 +1,38 @@
+[package]
+name = "actix-router"
+version = "0.5.0-beta.2"
+authors = [
+    "Nikolay Kim <fafhrd91@gmail.com>",
+    "Ali MJ Al-Nasrawy <alimjalnasrawy@gmail.com>",
+    "Rob Ede <robjtede@icloud.com>",
+]
+description = "Resource path matching and router"
+keywords = ["actix", "router", "routing"]
+repository = "https://github.com/actix/actix-web.git"
+license = "MIT OR Apache-2.0"
+edition = "2018"
+
+[lib]
+name = "actix_router"
+path = "src/lib.rs"
+
+[features]
+default = ["http"]
+
+[dependencies]
+bytestring = ">=0.1.5, <2"
+firestorm = "0.4"
+http = { version = "0.2.3", optional = true }
+log = "0.4"
+regex = "1.5"
+serde = "1"
+
+[dev-dependencies]
+criterion = { version = "0.3", features = ["html_reports"] }
+firestorm = { version = "0.4", features = ["enable_system_time"] }
+http = "0.2.3"
+serde = { version = "1", features = ["derive"] }
+
+[[bench]]
+name = "router"
+harness = false

actix-router/LICENSE-APACHE

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

actix-router/LICENSE-MIT

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

actix-router/benches/router.rs

@@ -0,0 +1,194 @@
+//! Based on https://github.com/ibraheemdev/matchit/blob/master/benches/bench.rs
+
+use criterion::{black_box, criterion_group, criterion_main, Criterion};
+
+macro_rules! register {
+    (colon) => {{
+        register!(finish => ":p1", ":p2", ":p3", ":p4")
+    }};
+    (brackets) => {{
+        register!(finish => "{p1}", "{p2}", "{p3}", "{p4}")
+    }};
+    (regex) => {{
+        register!(finish => "(.*)", "(.*)", "(.*)", "(.*)")
+    }};
+    (finish => $p1:literal, $p2:literal, $p3:literal, $p4:literal) => {{
+        let arr = [
+            concat!("/authorizations"),
+            concat!("/authorizations/", $p1),
+            concat!("/applications/", $p1, "/tokens/", $p2),
+            concat!("/events"),
+            concat!("/repos/", $p1, "/", $p2, "/events"),
+            concat!("/networks/", $p1, "/", $p2, "/events"),
+            concat!("/orgs/", $p1, "/events"),
+            concat!("/users/", $p1, "/received_events"),
+            concat!("/users/", $p1, "/received_events/public"),
+            concat!("/users/", $p1, "/events"),
+            concat!("/users/", $p1, "/events/public"),
+            concat!("/users/", $p1, "/events/orgs/", $p2),
+            concat!("/feeds"),
+            concat!("/notifications"),
+            concat!("/repos/", $p1, "/", $p2, "/notifications"),
+            concat!("/notifications/threads/", $p1),
+            concat!("/notifications/threads/", $p1, "/subscription"),
+            concat!("/repos/", $p1, "/", $p2, "/stargazers"),
+            concat!("/users/", $p1, "/starred"),
+            concat!("/user/starred"),
+            concat!("/user/starred/", $p1, "/", $p2),
+            concat!("/repos/", $p1, "/", $p2, "/subscribers"),
+            concat!("/users/", $p1, "/subscriptions"),
+            concat!("/user/subscriptions"),
+            concat!("/repos/", $p1, "/", $p2, "/subscription"),
+            concat!("/user/subscriptions/", $p1, "/", $p2),
+            concat!("/users/", $p1, "/gists"),
+            concat!("/gists"),
+            concat!("/gists/", $p1),
+            concat!("/gists/", $p1, "/star"),
+            concat!("/repos/", $p1, "/", $p2, "/git/blobs/", $p3),
+            concat!("/repos/", $p1, "/", $p2, "/git/commits/", $p3),
+            concat!("/repos/", $p1, "/", $p2, "/git/refs"),
+            concat!("/repos/", $p1, "/", $p2, "/git/tags/", $p3),
+            concat!("/repos/", $p1, "/", $p2, "/git/trees/", $p3),
+            concat!("/issues"),
+            concat!("/user/issues"),
+            concat!("/orgs/", $p1, "/issues"),
+            concat!("/repos/", $p1, "/", $p2, "/issues"),
+            concat!("/repos/", $p1, "/", $p2, "/issues/", $p3),
+            concat!("/repos/", $p1, "/", $p2, "/assignees"),
+            concat!("/repos/", $p1, "/", $p2, "/assignees/", $p3),
+            concat!("/repos/", $p1, "/", $p2, "/issues/", $p3, "/comments"),
+            concat!("/repos/", $p1, "/", $p2, "/issues/", $p3, "/events"),
+            concat!("/repos/", $p1, "/", $p2, "/labels"),
+            concat!("/repos/", $p1, "/", $p2, "/labels/", $p3),
+            concat!("/repos/", $p1, "/", $p2, "/issues/", $p3, "/labels"),
+            concat!("/repos/", $p1, "/", $p2, "/milestones/", $p3, "/labels"),
+            concat!("/repos/", $p1, "/", $p2, "/milestones/"),
+            concat!("/repos/", $p1, "/", $p2, "/milestones/", $p3),
+            concat!("/emojis"),
+            concat!("/gitignore/templates"),
+            concat!("/gitignore/templates/", $p1),
+            concat!("/meta"),
+            concat!("/rate_limit"),
+            concat!("/users/", $p1, "/orgs"),
+            concat!("/user/orgs"),
+            concat!("/orgs/", $p1),
+            concat!("/orgs/", $p1, "/members"),
+            concat!("/orgs/", $p1, "/members", $p2),
+            concat!("/orgs/", $p1, "/public_members"),
+            concat!("/orgs/", $p1, "/public_members/", $p2),
+            concat!("/orgs/", $p1, "/teams"),
+            concat!("/teams/", $p1),
+            concat!("/teams/", $p1, "/members"),
+            concat!("/teams/", $p1, "/members", $p2),
+            concat!("/teams/", $p1, "/repos"),
+            concat!("/teams/", $p1, "/repos/", $p2, "/", $p3),
+            concat!("/user/teams"),
+            concat!("/repos/", $p1, "/", $p2, "/pulls"),
+            concat!("/repos/", $p1, "/", $p2, "/pulls/", $p3),
+            concat!("/repos/", $p1, "/", $p2, "/pulls/", $p3, "/commits"),
+            concat!("/repos/", $p1, "/", $p2, "/pulls/", $p3, "/files"),
+            concat!("/repos/", $p1, "/", $p2, "/pulls/", $p3, "/merge"),
+            concat!("/repos/", $p1, "/", $p2, "/pulls/", $p3, "/comments"),
+            concat!("/user/repos"),
+            concat!("/users/", $p1, "/repos"),
+            concat!("/orgs/", $p1, "/repos"),
+            concat!("/repositories"),
+            concat!("/repos/", $p1, "/", $p2),
+            concat!("/repos/", $p1, "/", $p2, "/contributors"),
+            concat!("/repos/", $p1, "/", $p2, "/languages"),
+            concat!("/repos/", $p1, "/", $p2, "/teams"),
+            concat!("/repos/", $p1, "/", $p2, "/tags"),
+            concat!("/repos/", $p1, "/", $p2, "/branches"),
+            concat!("/repos/", $p1, "/", $p2, "/branches/", $p3),
+            concat!("/repos/", $p1, "/", $p2, "/collaborators"),
+            concat!("/repos/", $p1, "/", $p2, "/collaborators/", $p3),
+            concat!("/repos/", $p1, "/", $p2, "/comments"),
+            concat!("/repos/", $p1, "/", $p2, "/commits/", $p3, "/comments"),
+            concat!("/repos/", $p1, "/", $p2, "/commits"),
+            concat!("/repos/", $p1, "/", $p2, "/commits/", $p3),
+            concat!("/repos/", $p1, "/", $p2, "/readme"),
+            concat!("/repos/", $p1, "/", $p2, "/keys"),
+            concat!("/repos/", $p1, "/", $p2, "/keys", $p3),
+            concat!("/repos/", $p1, "/", $p2, "/downloads"),
+            concat!("/repos/", $p1, "/", $p2, "/downloads", $p3),
+            concat!("/repos/", $p1, "/", $p2, "/forks"),
+            concat!("/repos/", $p1, "/", $p2, "/hooks"),
+            concat!("/repos/", $p1, "/", $p2, "/hooks", $p3),
+            concat!("/repos/", $p1, "/", $p2, "/releases"),
+            concat!("/repos/", $p1, "/", $p2, "/releases/", $p3),
+            concat!("/repos/", $p1, "/", $p2, "/releases/", $p3, "/assets"),
+            concat!("/repos/", $p1, "/", $p2, "/stats/contributors"),
+            concat!("/repos/", $p1, "/", $p2, "/stats/commit_activity"),
+            concat!("/repos/", $p1, "/", $p2, "/stats/code_frequency"),
+            concat!("/repos/", $p1, "/", $p2, "/stats/participation"),
+            concat!("/repos/", $p1, "/", $p2, "/stats/punch_card"),
+            concat!("/repos/", $p1, "/", $p2, "/statuses/", $p3),
+            concat!("/search/repositories"),
+            concat!("/search/code"),
+            concat!("/search/issues"),
+            concat!("/search/users"),
+            concat!("/legacy/issues/search/", $p1, "/", $p2, "/", $p3, "/", $p4),
+            concat!("/legacy/repos/search/", $p1),
+            concat!("/legacy/user/search/", $p1),
+            concat!("/legacy/user/email/", $p1),
+            concat!("/users/", $p1),
+            concat!("/user"),
+            concat!("/users"),
+            concat!("/user/emails"),
+            concat!("/users/", $p1, "/followers"),
+            concat!("/user/followers"),
+            concat!("/users/", $p1, "/following"),
+            concat!("/user/following"),
+            concat!("/user/following/", $p1),
+            concat!("/users/", $p1, "/following", $p2),
+            concat!("/users/", $p1, "/keys"),
+            concat!("/user/keys"),
+            concat!("/user/keys/", $p1),
+        ];
+        std::array::IntoIter::new(arr)
+    }};
+}
+
+fn call() -> impl Iterator<Item = &'static str> {
+    let arr = [
+        "/authorizations",
+        "/user/repos",
+        "/repos/rust-lang/rust/stargazers",
+        "/orgs/rust-lang/public_members/nikomatsakis",
+        "/repos/rust-lang/rust/releases/1.51.0",
+    ];
+
+    std::array::IntoIter::new(arr)
+}
+
+fn compare_routers(c: &mut Criterion) {
+    let mut group = c.benchmark_group("Compare Routers");
+
+    let mut actix = actix_router::Router::<bool>::build();
+    for route in register!(brackets) {
+        actix.path(route, true);
+    }
+    let actix = actix.finish();
+    group.bench_function("actix", |b| {
+        b.iter(|| {
+            for route in call() {
+                let mut path = actix_router::Path::new(route);
+                black_box(actix.recognize(&mut path).unwrap());
+            }
+        });
+    });
+
+    let regex_set = regex::RegexSet::new(register!(regex)).unwrap();
+    group.bench_function("regex", |b| {
+        b.iter(|| {
+            for route in call() {
+                black_box(regex_set.matches(route));
+            }
+        });
+    });
+
+    group.finish();
+}
+
+criterion_group!(benches, compare_routers);
+criterion_main!(benches);

actix-router/examples/flamegraph.rs

@@ -0,0 +1,169 @@
+macro_rules! register {
+    (brackets) => {{
+        register!(finish => "{p1}", "{p2}", "{p3}", "{p4}")
+    }};
+    (finish => $p1:literal, $p2:literal, $p3:literal, $p4:literal) => {{
+        let arr = [
+            concat!("/authorizations"),
+            concat!("/authorizations/", $p1),
+            concat!("/applications/", $p1, "/tokens/", $p2),
+            concat!("/events"),
+            concat!("/repos/", $p1, "/", $p2, "/events"),
+            concat!("/networks/", $p1, "/", $p2, "/events"),
+            concat!("/orgs/", $p1, "/events"),
+            concat!("/users/", $p1, "/received_events"),
+            concat!("/users/", $p1, "/received_events/public"),
+            concat!("/users/", $p1, "/events"),
+            concat!("/users/", $p1, "/events/public"),
+            concat!("/users/", $p1, "/events/orgs/", $p2),
+            concat!("/feeds"),
+            concat!("/notifications"),
+            concat!("/repos/", $p1, "/", $p2, "/notifications"),
+            concat!("/notifications/threads/", $p1),
+            concat!("/notifications/threads/", $p1, "/subscription"),
+            concat!("/repos/", $p1, "/", $p2, "/stargazers"),
+            concat!("/users/", $p1, "/starred"),
+            concat!("/user/starred"),
+            concat!("/user/starred/", $p1, "/", $p2),
+            concat!("/repos/", $p1, "/", $p2, "/subscribers"),
+            concat!("/users/", $p1, "/subscriptions"),
+            concat!("/user/subscriptions"),
+            concat!("/repos/", $p1, "/", $p2, "/subscription"),
+            concat!("/user/subscriptions/", $p1, "/", $p2),
+            concat!("/users/", $p1, "/gists"),
+            concat!("/gists"),
+            concat!("/gists/", $p1),
+            concat!("/gists/", $p1, "/star"),
+            concat!("/repos/", $p1, "/", $p2, "/git/blobs/", $p3),
+            concat!("/repos/", $p1, "/", $p2, "/git/commits/", $p3),
+            concat!("/repos/", $p1, "/", $p2, "/git/refs"),
+            concat!("/repos/", $p1, "/", $p2, "/git/tags/", $p3),
+            concat!("/repos/", $p1, "/", $p2, "/git/trees/", $p3),
+            concat!("/issues"),
+            concat!("/user/issues"),
+            concat!("/orgs/", $p1, "/issues"),
+            concat!("/repos/", $p1, "/", $p2, "/issues"),
+            concat!("/repos/", $p1, "/", $p2, "/issues/", $p3),
+            concat!("/repos/", $p1, "/", $p2, "/assignees"),
+            concat!("/repos/", $p1, "/", $p2, "/assignees/", $p3),
+            concat!("/repos/", $p1, "/", $p2, "/issues/", $p3, "/comments"),
+            concat!("/repos/", $p1, "/", $p2, "/issues/", $p3, "/events"),
+            concat!("/repos/", $p1, "/", $p2, "/labels"),
+            concat!("/repos/", $p1, "/", $p2, "/labels/", $p3),
+            concat!("/repos/", $p1, "/", $p2, "/issues/", $p3, "/labels"),
+            concat!("/repos/", $p1, "/", $p2, "/milestones/", $p3, "/labels"),
+            concat!("/repos/", $p1, "/", $p2, "/milestones/"),
+            concat!("/repos/", $p1, "/", $p2, "/milestones/", $p3),
+            concat!("/emojis"),
+            concat!("/gitignore/templates"),
+            concat!("/gitignore/templates/", $p1),
+            concat!("/meta"),
+            concat!("/rate_limit"),
+            concat!("/users/", $p1, "/orgs"),
+            concat!("/user/orgs"),
+            concat!("/orgs/", $p1),
+            concat!("/orgs/", $p1, "/members"),
+            concat!("/orgs/", $p1, "/members", $p2),
+            concat!("/orgs/", $p1, "/public_members"),
+            concat!("/orgs/", $p1, "/public_members/", $p2),
+            concat!("/orgs/", $p1, "/teams"),
+            concat!("/teams/", $p1),
+            concat!("/teams/", $p1, "/members"),
+            concat!("/teams/", $p1, "/members", $p2),
+            concat!("/teams/", $p1, "/repos"),
+            concat!("/teams/", $p1, "/repos/", $p2, "/", $p3),
+            concat!("/user/teams"),
+            concat!("/repos/", $p1, "/", $p2, "/pulls"),
+            concat!("/repos/", $p1, "/", $p2, "/pulls/", $p3),
+            concat!("/repos/", $p1, "/", $p2, "/pulls/", $p3, "/commits"),
+            concat!("/repos/", $p1, "/", $p2, "/pulls/", $p3, "/files"),
+            concat!("/repos/", $p1, "/", $p2, "/pulls/", $p3, "/merge"),
+            concat!("/repos/", $p1, "/", $p2, "/pulls/", $p3, "/comments"),
+            concat!("/user/repos"),
+            concat!("/users/", $p1, "/repos"),
+            concat!("/orgs/", $p1, "/repos"),
+            concat!("/repositories"),
+            concat!("/repos/", $p1, "/", $p2),
+            concat!("/repos/", $p1, "/", $p2, "/contributors"),
+            concat!("/repos/", $p1, "/", $p2, "/languages"),
+            concat!("/repos/", $p1, "/", $p2, "/teams"),
+            concat!("/repos/", $p1, "/", $p2, "/tags"),
+            concat!("/repos/", $p1, "/", $p2, "/branches"),
+            concat!("/repos/", $p1, "/", $p2, "/branches/", $p3),
+            concat!("/repos/", $p1, "/", $p2, "/collaborators"),
+            concat!("/repos/", $p1, "/", $p2, "/collaborators/", $p3),
+            concat!("/repos/", $p1, "/", $p2, "/comments"),
+            concat!("/repos/", $p1, "/", $p2, "/commits/", $p3, "/comments"),
+            concat!("/repos/", $p1, "/", $p2, "/commits"),
+            concat!("/repos/", $p1, "/", $p2, "/commits/", $p3),
+            concat!("/repos/", $p1, "/", $p2, "/readme"),
+            concat!("/repos/", $p1, "/", $p2, "/keys"),
+            concat!("/repos/", $p1, "/", $p2, "/keys", $p3),
+            concat!("/repos/", $p1, "/", $p2, "/downloads"),
+            concat!("/repos/", $p1, "/", $p2, "/downloads", $p3),
+            concat!("/repos/", $p1, "/", $p2, "/forks"),
+            concat!("/repos/", $p1, "/", $p2, "/hooks"),
+            concat!("/repos/", $p1, "/", $p2, "/hooks", $p3),
+            concat!("/repos/", $p1, "/", $p2, "/releases"),
+            concat!("/repos/", $p1, "/", $p2, "/releases/", $p3),
+            concat!("/repos/", $p1, "/", $p2, "/releases/", $p3, "/assets"),
+            concat!("/repos/", $p1, "/", $p2, "/stats/contributors"),
+            concat!("/repos/", $p1, "/", $p2, "/stats/commit_activity"),
+            concat!("/repos/", $p1, "/", $p2, "/stats/code_frequency"),
+            concat!("/repos/", $p1, "/", $p2, "/stats/participation"),
+            concat!("/repos/", $p1, "/", $p2, "/stats/punch_card"),
+            concat!("/repos/", $p1, "/", $p2, "/statuses/", $p3),
+            concat!("/search/repositories"),
+            concat!("/search/code"),
+            concat!("/search/issues"),
+            concat!("/search/users"),
+            concat!("/legacy/issues/search/", $p1, "/", $p2, "/", $p3, "/", $p4),
+            concat!("/legacy/repos/search/", $p1),
+            concat!("/legacy/user/search/", $p1),
+            concat!("/legacy/user/email/", $p1),
+            concat!("/users/", $p1),
+            concat!("/user"),
+            concat!("/users"),
+            concat!("/user/emails"),
+            concat!("/users/", $p1, "/followers"),
+            concat!("/user/followers"),
+            concat!("/users/", $p1, "/following"),
+            concat!("/user/following"),
+            concat!("/user/following/", $p1),
+            concat!("/users/", $p1, "/following", $p2),
+            concat!("/users/", $p1, "/keys"),
+            concat!("/user/keys"),
+            concat!("/user/keys/", $p1),
+        ];
+
+        arr.to_vec()
+    }};
+}
+
+static PATHS: [&str; 5] = [
+    "/authorizations",
+    "/user/repos",
+    "/repos/rust-lang/rust/stargazers",
+    "/orgs/rust-lang/public_members/nikomatsakis",
+    "/repos/rust-lang/rust/releases/1.51.0",
+];
+
+fn main() {
+    let mut router = actix_router::Router::<bool>::build();
+
+    for route in register!(brackets) {
+        router.path(route, true);
+    }
+
+    let actix = router.finish();
+
+    if firestorm::enabled() {
+        firestorm::bench("target", || {
+            for &route in &PATHS {
+                let mut path = actix_router::Path::new(route);
+                actix.recognize(&mut path).unwrap();
+            }
+        })
+        .unwrap();
+    }
+}

actix-router/src/de.rs

@@ -0,0 +1,723 @@
+use serde::de::{self, Deserializer, Error as DeError, Visitor};
+use serde::forward_to_deserialize_any;
+
+use crate::path::{Path, PathIter};
+use crate::ResourcePath;
+
+macro_rules! unsupported_type {
+    ($trait_fn:ident, $name:expr) => {
+        fn $trait_fn<V>(self, _: V) -> Result<V::Value, Self::Error>
+        where
+            V: Visitor<'de>,
+        {
+            Err(de::value::Error::custom(concat!(
+                "unsupported type: ",
+                $name
+            )))
+        }
+    };
+}
+
+macro_rules! parse_single_value {
+    ($trait_fn:ident, $visit_fn:ident, $tp:tt) => {
+        fn $trait_fn<V>(self, visitor: V) -> Result<V::Value, Self::Error>
+        where
+            V: Visitor<'de>,
+        {
+            if self.path.segment_count() != 1 {
+                Err(de::value::Error::custom(
+                    format!(
+                        "wrong number of parameters: {} expected 1",
+                        self.path.segment_count()
+                    )
+                    .as_str(),
+                ))
+            } else {
+                let v = self.path[0].parse().map_err(|_| {
+                    de::value::Error::custom(format!(
+                        "can not parse {:?} to a {}",
+                        &self.path[0], $tp
+                    ))
+                })?;
+                visitor.$visit_fn(v)
+            }
+        }
+    };
+}
+
+pub struct PathDeserializer<'de, T: ResourcePath> {
+    path: &'de Path<T>,
+}
+
+impl<'de, T: ResourcePath + 'de> PathDeserializer<'de, T> {
+    pub fn new(path: &'de Path<T>) -> Self {
+        PathDeserializer { path }
+    }
+}
+
+impl<'de, T: ResourcePath + 'de> Deserializer<'de> for PathDeserializer<'de, T> {
+    type Error = de::value::Error;
+
+    fn deserialize_map<V>(self, visitor: V) -> Result<V::Value, Self::Error>
+    where
+        V: Visitor<'de>,
+    {
+        visitor.visit_map(ParamsDeserializer {
+            params: self.path.iter(),
+            current: None,
+        })
+    }
+
+    fn deserialize_struct<V>(
+        self,
+        _: &'static str,
+        _: &'static [&'static str],
+        visitor: V,
+    ) -> Result<V::Value, Self::Error>
+    where
+        V: Visitor<'de>,
+    {
+        self.deserialize_map(visitor)
+    }
+
+    fn deserialize_unit<V>(self, visitor: V) -> Result<V::Value, Self::Error>
+    where
+        V: Visitor<'de>,
+    {
+        visitor.visit_unit()
+    }
+
+    fn deserialize_unit_struct<V>(
+        self,
+        _: &'static str,
+        visitor: V,
+    ) -> Result<V::Value, Self::Error>
+    where
+        V: Visitor<'de>,
+    {
+        self.deserialize_unit(visitor)
+    }
+
+    fn deserialize_newtype_struct<V>(
+        self,
+        _: &'static str,
+        visitor: V,
+    ) -> Result<V::Value, Self::Error>
+    where
+        V: Visitor<'de>,
+    {
+        visitor.visit_newtype_struct(self)
+    }
+
+    fn deserialize_tuple<V>(self, len: usize, visitor: V) -> Result<V::Value, Self::Error>
+    where
+        V: Visitor<'de>,
+    {
+        if self.path.segment_count() < len {
+            Err(de::value::Error::custom(
+                format!(
+                    "wrong number of parameters: {} expected {}",
+                    self.path.segment_count(),
+                    len
+                )
+                .as_str(),
+            ))
+        } else {
+            visitor.visit_seq(ParamsSeq {
+                params: self.path.iter(),
+            })
+        }
+    }
+
+    fn deserialize_tuple_struct<V>(
+        self,
+        _: &'static str,
+        len: usize,
+        visitor: V,
+    ) -> Result<V::Value, Self::Error>
+    where
+        V: Visitor<'de>,
+    {
+        if self.path.segment_count() < len {
+            Err(de::value::Error::custom(
+                format!(
+                    "wrong number of parameters: {} expected {}",
+                    self.path.segment_count(),
+                    len
+                )
+                .as_str(),
+            ))
+        } else {
+            visitor.visit_seq(ParamsSeq {
+                params: self.path.iter(),
+            })
+        }
+    }
+
+    fn deserialize_enum<V>(
+        self,
+        _: &'static str,
+        _: &'static [&'static str],
+        visitor: V,
+    ) -> Result<V::Value, Self::Error>
+    where
+        V: Visitor<'de>,
+    {
+        if self.path.is_empty() {
+            Err(de::value::Error::custom("expected at least one parameters"))
+        } else {
+            visitor.visit_enum(ValueEnum {
+                value: &self.path[0],
+            })
+        }
+    }
+
+    fn deserialize_str<V>(self, visitor: V) -> Result<V::Value, Self::Error>
+    where
+        V: Visitor<'de>,
+    {
+        if self.path.segment_count() != 1 {
+            Err(de::value::Error::custom(
+                format!(
+                    "wrong number of parameters: {} expected 1",
+                    self.path.segment_count()
+                )
+                .as_str(),
+            ))
+        } else {
+            visitor.visit_str(&self.path[0])
+        }
+    }
+
+    fn deserialize_seq<V>(self, visitor: V) -> Result<V::Value, Self::Error>
+    where
+        V: Visitor<'de>,
+    {
+        visitor.visit_seq(ParamsSeq {
+            params: self.path.iter(),
+        })
+    }
+
+    unsupported_type!(deserialize_any, "'any'");
+    unsupported_type!(deserialize_bytes, "bytes");
+    unsupported_type!(deserialize_option, "Option<T>");
+    unsupported_type!(deserialize_identifier, "identifier");
+    unsupported_type!(deserialize_ignored_any, "ignored_any");
+
+    parse_single_value!(deserialize_bool, visit_bool, "bool");
+    parse_single_value!(deserialize_i8, visit_i8, "i8");
+    parse_single_value!(deserialize_i16, visit_i16, "i16");
+    parse_single_value!(deserialize_i32, visit_i32, "i32");
+    parse_single_value!(deserialize_i64, visit_i64, "i64");
+    parse_single_value!(deserialize_u8, visit_u8, "u8");
+    parse_single_value!(deserialize_u16, visit_u16, "u16");
+    parse_single_value!(deserialize_u32, visit_u32, "u32");
+    parse_single_value!(deserialize_u64, visit_u64, "u64");
+    parse_single_value!(deserialize_f32, visit_f32, "f32");
+    parse_single_value!(deserialize_f64, visit_f64, "f64");
+    parse_single_value!(deserialize_string, visit_string, "String");
+    parse_single_value!(deserialize_byte_buf, visit_string, "String");
+    parse_single_value!(deserialize_char, visit_char, "char");
+}
+
+struct ParamsDeserializer<'de, T: ResourcePath> {
+    params: PathIter<'de, T>,
+    current: Option<(&'de str, &'de str)>,
+}
+
+impl<'de, T: ResourcePath> de::MapAccess<'de> for ParamsDeserializer<'de, T> {
+    type Error = de::value::Error;
+
+    fn next_key_seed<K>(&mut self, seed: K) -> Result<Option<K::Value>, Self::Error>
+    where
+        K: de::DeserializeSeed<'de>,
+    {
+        self.current = self.params.next().map(|ref item| (item.0, item.1));
+        match self.current {
+            Some((key, _)) => Ok(Some(seed.deserialize(Key { key })?)),
+            None => Ok(None),
+        }
+    }
+
+    fn next_value_seed<V>(&mut self, seed: V) -> Result<V::Value, Self::Error>
+    where
+        V: de::DeserializeSeed<'de>,
+    {
+        if let Some((_, value)) = self.current.take() {
+            seed.deserialize(Value { value })
+        } else {
+            Err(de::value::Error::custom("unexpected item"))
+        }
+    }
+}
+
+struct Key<'de> {
+    key: &'de str,
+}
+
+impl<'de> Deserializer<'de> for Key<'de> {
+    type Error = de::value::Error;
+
+    fn deserialize_identifier<V>(self, visitor: V) -> Result<V::Value, Self::Error>
+    where
+        V: Visitor<'de>,
+    {
+        visitor.visit_str(self.key)
+    }
+
+    fn deserialize_any<V>(self, _visitor: V) -> Result<V::Value, Self::Error>
+    where
+        V: Visitor<'de>,
+    {
+        Err(de::value::Error::custom("Unexpected"))
+    }
+
+    forward_to_deserialize_any! {
+        bool i8 i16 i32 i64 u8 u16 u32 u64 f32 f64 char str string bytes
+            byte_buf option unit unit_struct newtype_struct seq tuple
+            tuple_struct map struct enum ignored_any
+    }
+}
+
+macro_rules! parse_value {
+    ($trait_fn:ident, $visit_fn:ident, $tp:tt) => {
+        fn $trait_fn<V>(self, visitor: V) -> Result<V::Value, Self::Error>
+        where
+            V: Visitor<'de>,
+        {
+            let v = self.value.parse().map_err(|_| {
+                de::value::Error::custom(format!("can not parse {:?} to a {}", self.value, $tp))
+            })?;
+            visitor.$visit_fn(v)
+        }
+    };
+}
+
+struct Value<'de> {
+    value: &'de str,
+}
+
+impl<'de> Deserializer<'de> for Value<'de> {
+    type Error = de::value::Error;
+
+    parse_value!(deserialize_bool, visit_bool, "bool");
+    parse_value!(deserialize_i8, visit_i8, "i8");
+    parse_value!(deserialize_i16, visit_i16, "i16");
+    parse_value!(deserialize_i32, visit_i32, "i16");
+    parse_value!(deserialize_i64, visit_i64, "i64");
+    parse_value!(deserialize_u8, visit_u8, "u8");
+    parse_value!(deserialize_u16, visit_u16, "u16");
+    parse_value!(deserialize_u32, visit_u32, "u32");
+    parse_value!(deserialize_u64, visit_u64, "u64");
+    parse_value!(deserialize_f32, visit_f32, "f32");
+    parse_value!(deserialize_f64, visit_f64, "f64");
+    parse_value!(deserialize_string, visit_string, "String");
+    parse_value!(deserialize_byte_buf, visit_string, "String");
+    parse_value!(deserialize_char, visit_char, "char");
+
+    fn deserialize_ignored_any<V>(self, visitor: V) -> Result<V::Value, Self::Error>
+    where
+        V: Visitor<'de>,
+    {
+        visitor.visit_unit()
+    }
+
+    fn deserialize_unit<V>(self, visitor: V) -> Result<V::Value, Self::Error>
+    where
+        V: Visitor<'de>,
+    {
+        visitor.visit_unit()
+    }
+
+    fn deserialize_unit_struct<V>(
+        self,
+        _: &'static str,
+        visitor: V,
+    ) -> Result<V::Value, Self::Error>
+    where
+        V: Visitor<'de>,
+    {
+        visitor.visit_unit()
+    }
+
+    fn deserialize_bytes<V>(self, visitor: V) -> Result<V::Value, Self::Error>
+    where
+        V: Visitor<'de>,
+    {
+        visitor.visit_borrowed_bytes(self.value.as_bytes())
+    }
+
+    fn deserialize_str<V>(self, visitor: V) -> Result<V::Value, Self::Error>
+    where
+        V: Visitor<'de>,
+    {
+        visitor.visit_borrowed_str(self.value)
+    }
+
+    fn deserialize_option<V>(self, visitor: V) -> Result<V::Value, Self::Error>
+    where
+        V: Visitor<'de>,
+    {
+        visitor.visit_some(self)
+    }
+
+    fn deserialize_enum<V>(
+        self,
+        _: &'static str,
+        _: &'static [&'static str],
+        visitor: V,
+    ) -> Result<V::Value, Self::Error>
+    where
+        V: Visitor<'de>,
+    {
+        visitor.visit_enum(ValueEnum { value: self.value })
+    }
+
+    fn deserialize_newtype_struct<V>(
+        self,
+        _: &'static str,
+        visitor: V,
+    ) -> Result<V::Value, Self::Error>
+    where
+        V: Visitor<'de>,
+    {
+        visitor.visit_newtype_struct(self)
+    }
+
+    fn deserialize_tuple<V>(self, _: usize, _: V) -> Result<V::Value, Self::Error>
+    where
+        V: Visitor<'de>,
+    {
+        Err(de::value::Error::custom("unsupported type: tuple"))
+    }
+
+    fn deserialize_struct<V>(
+        self,
+        _: &'static str,
+        _: &'static [&'static str],
+        _: V,
+    ) -> Result<V::Value, Self::Error>
+    where
+        V: Visitor<'de>,
+    {
+        Err(de::value::Error::custom("unsupported type: struct"))
+    }
+
+    fn deserialize_tuple_struct<V>(
+        self,
+        _: &'static str,
+        _: usize,
+        _: V,
+    ) -> Result<V::Value, Self::Error>
+    where
+        V: Visitor<'de>,
+    {
+        Err(de::value::Error::custom("unsupported type: tuple struct"))
+    }
+
+    unsupported_type!(deserialize_any, "any");
+    unsupported_type!(deserialize_seq, "seq");
+    unsupported_type!(deserialize_map, "map");
+    unsupported_type!(deserialize_identifier, "identifier");
+}
+
+struct ParamsSeq<'de, T: ResourcePath> {
+    params: PathIter<'de, T>,
+}
+
+impl<'de, T: ResourcePath> de::SeqAccess<'de> for ParamsSeq<'de, T> {
+    type Error = de::value::Error;
+
+    fn next_element_seed<U>(&mut self, seed: U) -> Result<Option<U::Value>, Self::Error>
+    where
+        U: de::DeserializeSeed<'de>,
+    {
+        match self.params.next() {
+            Some(item) => Ok(Some(seed.deserialize(Value { value: item.1 })?)),
+            None => Ok(None),
+        }
+    }
+}
+
+struct ValueEnum<'de> {
+    value: &'de str,
+}
+
+impl<'de> de::EnumAccess<'de> for ValueEnum<'de> {
+    type Error = de::value::Error;
+    type Variant = UnitVariant;
+
+    fn variant_seed<V>(self, seed: V) -> Result<(V::Value, Self::Variant), Self::Error>
+    where
+        V: de::DeserializeSeed<'de>,
+    {
+        Ok((seed.deserialize(Key { key: self.value })?, UnitVariant))
+    }
+}
+
+struct UnitVariant;
+
+impl<'de> de::VariantAccess<'de> for UnitVariant {
+    type Error = de::value::Error;
+
+    fn unit_variant(self) -> Result<(), Self::Error> {
+        Ok(())
+    }
+
+    fn newtype_variant_seed<T>(self, _seed: T) -> Result<T::Value, Self::Error>
+    where
+        T: de::DeserializeSeed<'de>,
+    {
+        Err(de::value::Error::custom("not supported"))
+    }
+
+    fn tuple_variant<V>(self, _len: usize, _visitor: V) -> Result<V::Value, Self::Error>
+    where
+        V: Visitor<'de>,
+    {
+        Err(de::value::Error::custom("not supported"))
+    }
+
+    fn struct_variant<V>(
+        self,
+        _: &'static [&'static str],
+        _: V,
+    ) -> Result<V::Value, Self::Error>
+    where
+        V: Visitor<'de>,
+    {
+        Err(de::value::Error::custom("not supported"))
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use serde::{de, Deserialize};
+
+    use super::*;
+    use crate::path::Path;
+    use crate::router::Router;
+
+    #[derive(Deserialize)]
+    struct MyStruct {
+        key: String,
+        value: String,
+    }
+
+    #[derive(Deserialize)]
+    struct Id {
+        _id: String,
+    }
+
+    #[derive(Debug, Deserialize)]
+    struct Test1(String, u32);
+
+    #[derive(Debug, Deserialize)]
+    struct Test2 {
+        key: String,
+        value: u32,
+    }
+
+    #[derive(Debug, Deserialize, PartialEq)]
+    #[serde(rename_all = "lowercase")]
+    enum TestEnum {
+        Val1,
+        Val2,
+    }
+
+    #[derive(Debug, Deserialize)]
+    struct Test3 {
+        val: TestEnum,
+    }
+
+    #[test]
+    fn test_request_extract() {
+        let mut router = Router::<()>::build();
+        router.path("/{key}/{value}/", ());
+        let router = router.finish();
+
+        let mut path = Path::new("/name/user1/");
+        assert!(router.recognize(&mut path).is_some());
+
+        let s: MyStruct = de::Deserialize::deserialize(PathDeserializer::new(&path)).unwrap();
+        assert_eq!(s.key, "name");
+        assert_eq!(s.value, "user1");
+
+        let s: (String, String) =
+            de::Deserialize::deserialize(PathDeserializer::new(&path)).unwrap();
+        assert_eq!(s.0, "name");
+        assert_eq!(s.1, "user1");
+
+        let mut router = Router::<()>::build();
+        router.path("/{key}/{value}/", ());
+        let router = router.finish();
+
+        let mut path = Path::new("/name/32/");
+        assert!(router.recognize(&mut path).is_some());
+
+        let s: Test1 = de::Deserialize::deserialize(PathDeserializer::new(&path)).unwrap();
+        assert_eq!(s.0, "name");
+        assert_eq!(s.1, 32);
+
+        let s: Test2 = de::Deserialize::deserialize(PathDeserializer::new(&path)).unwrap();
+        assert_eq!(s.key, "name");
+        assert_eq!(s.value, 32);
+
+        let s: (String, u8) =
+            de::Deserialize::deserialize(PathDeserializer::new(&path)).unwrap();
+        assert_eq!(s.0, "name");
+        assert_eq!(s.1, 32);
+
+        let res: Vec<String> =
+            de::Deserialize::deserialize(PathDeserializer::new(&path)).unwrap();
+        assert_eq!(res[0], "name".to_owned());
+        assert_eq!(res[1], "32".to_owned());
+    }
+
+    #[test]
+    fn test_extract_path_single() {
+        let mut router = Router::<()>::build();
+        router.path("/{value}/", ());
+        let router = router.finish();
+
+        let mut path = Path::new("/32/");
+        assert!(router.recognize(&mut path).is_some());
+        let i: i8 = de::Deserialize::deserialize(PathDeserializer::new(&path)).unwrap();
+        assert_eq!(i, 32);
+    }
+
+    #[test]
+    fn test_extract_enum() {
+        let mut router = Router::<()>::build();
+        router.path("/{val}/", ());
+        let router = router.finish();
+
+        let mut path = Path::new("/val1/");
+        assert!(router.recognize(&mut path).is_some());
+        let i: TestEnum = de::Deserialize::deserialize(PathDeserializer::new(&path)).unwrap();
+        assert_eq!(i, TestEnum::Val1);
+
+        let mut router = Router::<()>::build();
+        router.path("/{val1}/{val2}/", ());
+        let router = router.finish();
+
+        let mut path = Path::new("/val1/val2/");
+        assert!(router.recognize(&mut path).is_some());
+        let i: (TestEnum, TestEnum) =
+            de::Deserialize::deserialize(PathDeserializer::new(&path)).unwrap();
+        assert_eq!(i, (TestEnum::Val1, TestEnum::Val2));
+    }
+
+    #[test]
+    fn test_extract_enum_value() {
+        let mut router = Router::<()>::build();
+        router.path("/{val}/", ());
+        let router = router.finish();
+
+        let mut path = Path::new("/val1/");
+        assert!(router.recognize(&mut path).is_some());
+        let i: Test3 = de::Deserialize::deserialize(PathDeserializer::new(&path)).unwrap();
+        assert_eq!(i.val, TestEnum::Val1);
+
+        let mut path = Path::new("/val3/");
+        assert!(router.recognize(&mut path).is_some());
+        let i: Result<Test3, de::value::Error> =
+            de::Deserialize::deserialize(PathDeserializer::new(&path));
+        assert!(i.is_err());
+        assert!(format!("{:?}", i).contains("unknown variant"));
+    }
+
+    #[test]
+    fn test_extract_errors() {
+        let mut router = Router::<()>::build();
+        router.path("/{value}/", ());
+        let router = router.finish();
+
+        let mut path = Path::new("/name/");
+        assert!(router.recognize(&mut path).is_some());
+
+        let s: Result<Test1, de::value::Error> =
+            de::Deserialize::deserialize(PathDeserializer::new(&path));
+        assert!(s.is_err());
+        assert!(format!("{:?}", s).contains("wrong number of parameters"));
+
+        let s: Result<Test2, de::value::Error> =
+            de::Deserialize::deserialize(PathDeserializer::new(&path));
+        assert!(s.is_err());
+        assert!(format!("{:?}", s).contains("can not parse"));
+
+        let s: Result<(String, String), de::value::Error> =
+            de::Deserialize::deserialize(PathDeserializer::new(&path));
+        assert!(s.is_err());
+        assert!(format!("{:?}", s).contains("wrong number of parameters"));
+
+        let s: Result<u32, de::value::Error> =
+            de::Deserialize::deserialize(PathDeserializer::new(&path));
+        assert!(s.is_err());
+        assert!(format!("{:?}", s).contains("can not parse"));
+    }
+
+    // #[test]
+    // fn test_extract_path_decode() {
+    //     let mut router = Router::<()>::default();
+    //     router.register_resource(Resource::new(ResourceDef::new("/{value}/")));
+
+    //     macro_rules! test_single_value {
+    //         ($value:expr, $expected:expr) => {{
+    //             let req = TestRequest::with_uri($value).finish();
+    //             let info = router.recognize(&req, &(), 0);
+    //             let req = req.with_route_info(info);
+    //             assert_eq!(
+    //                 *Path::<String>::from_request(&req, &PathConfig::default()).unwrap(),
+    //                 $expected
+    //             );
+    //         }};
+    //     }
+
+    //     test_single_value!("/%25/", "%");
+    //     test_single_value!("/%40%C2%A3%24%25%5E%26%2B%3D/", "@£$%^&+=");
+    //     test_single_value!("/%2B/", "+");
+    //     test_single_value!("/%252B/", "%2B");
+    //     test_single_value!("/%2F/", "/");
+    //     test_single_value!("/%252F/", "%2F");
+    //     test_single_value!(
+    //         "/http%3A%2F%2Flocalhost%3A80%2Ffoo/",
+    //         "http://localhost:80/foo"
+    //     );
+    //     test_single_value!("/%2Fvar%2Flog%2Fsyslog/", "/var/log/syslog");
+    //     test_single_value!(
+    //         "/http%3A%2F%2Flocalhost%3A80%2Ffile%2F%252Fvar%252Flog%252Fsyslog/",
+    //         "http://localhost:80/file/%2Fvar%2Flog%2Fsyslog"
+    //     );
+
+    //     let req = TestRequest::with_uri("/%25/7/?id=test").finish();
+
+    //     let mut router = Router::<()>::default();
+    //     router.register_resource(Resource::new(ResourceDef::new("/{key}/{value}/")));
+    //     let info = router.recognize(&req, &(), 0);
+    //     let req = req.with_route_info(info);
+
+    //     let s = Path::<Test2>::from_request(&req, &PathConfig::default()).unwrap();
+    //     assert_eq!(s.key, "%");
+    //     assert_eq!(s.value, 7);
+
+    //     let s = Path::<(String, String)>::from_request(&req, &PathConfig::default()).unwrap();
+    //     assert_eq!(s.0, "%");
+    //     assert_eq!(s.1, "7");
+    // }
+
+    // #[test]
+    // fn test_extract_path_no_decode() {
+    //     let mut router = Router::<()>::default();
+    //     router.register_resource(Resource::new(ResourceDef::new("/{value}/")));
+
+    //     let req = TestRequest::with_uri("/%25/").finish();
+    //     let info = router.recognize(&req, &(), 0);
+    //     let req = req.with_route_info(info);
+    //     assert_eq!(
+    //         *Path::<String>::from_request(&req, &&PathConfig::default().disable_decoding())
+    //             .unwrap(),
+    //         "%25"
+    //     );
+    // }
+}

actix-router/src/lib.rs

@@ -0,0 +1,149 @@
+//! Resource path matching and router.
+
+#![deny(rust_2018_idioms, nonstandard_style)]
+#![doc(html_logo_url = "https://actix.rs/img/logo.png")]
+#![doc(html_favicon_url = "https://actix.rs/favicon.ico")]
+
+mod de;
+mod path;
+mod resource;
+mod router;
+
+pub use self::de::PathDeserializer;
+pub use self::path::Path;
+pub use self::resource::ResourceDef;
+pub use self::router::{ResourceInfo, Router, RouterBuilder};
+
+// TODO: this trait is necessary, document it
+// see impl Resource for ServiceRequest
+pub trait Resource<T: ResourcePath> {
+    fn resource_path(&mut self) -> &mut Path<T>;
+}
+
+pub trait ResourcePath {
+    fn path(&self) -> &str;
+}
+
+impl ResourcePath for String {
+    fn path(&self) -> &str {
+        self.as_str()
+    }
+}
+
+impl<'a> ResourcePath for &'a str {
+    fn path(&self) -> &str {
+        self
+    }
+}
+
+impl ResourcePath for bytestring::ByteString {
+    fn path(&self) -> &str {
+        &*self
+    }
+}
+
+/// One or many patterns.
+#[derive(Debug, Clone, PartialEq, Eq, Hash)]
+pub enum Patterns {
+    Single(String),
+    List(Vec<String>),
+}
+
+impl Patterns {
+    pub fn is_empty(&self) -> bool {
+        match self {
+            Patterns::Single(_) => false,
+            Patterns::List(pats) => pats.is_empty(),
+        }
+    }
+}
+
+/// Helper trait for type that could be converted to one or more path pattern.
+pub trait IntoPatterns {
+    fn patterns(&self) -> Patterns;
+}
+
+impl IntoPatterns for String {
+    fn patterns(&self) -> Patterns {
+        Patterns::Single(self.clone())
+    }
+}
+
+impl<'a> IntoPatterns for &'a String {
+    fn patterns(&self) -> Patterns {
+        Patterns::Single((*self).clone())
+    }
+}
+
+impl<'a> IntoPatterns for &'a str {
+    fn patterns(&self) -> Patterns {
+        Patterns::Single((*self).to_owned())
+    }
+}
+
+impl IntoPatterns for bytestring::ByteString {
+    fn patterns(&self) -> Patterns {
+        Patterns::Single(self.to_string())
+    }
+}
+
+impl IntoPatterns for Patterns {
+    fn patterns(&self) -> Patterns {
+        self.clone()
+    }
+}
+
+impl<T: AsRef<str>> IntoPatterns for Vec<T> {
+    fn patterns(&self) -> Patterns {
+        let mut patterns = self.iter().map(|v| v.as_ref().to_owned());
+
+        match patterns.size_hint() {
+            (1, _) => Patterns::Single(patterns.next().unwrap()),
+            _ => Patterns::List(patterns.collect()),
+        }
+    }
+}
+
+macro_rules! array_patterns_single (($tp:ty) => {
+    impl IntoPatterns for [$tp; 1] {
+        fn patterns(&self) -> Patterns {
+            Patterns::Single(self[0].to_owned())
+        }
+    }
+});
+
+macro_rules! array_patterns_multiple (($tp:ty, $str_fn:expr, $($num:tt) +) => {
+    // for each array length specified in $num
+    $(
+        impl IntoPatterns for [$tp; $num] {
+            fn patterns(&self) -> Patterns {
+                Patterns::List(self.iter().map($str_fn).collect())
+            }
+        }
+    )+
+});
+
+array_patterns_single!(&str);
+array_patterns_multiple!(&str, |&v| v.to_owned(), 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16);
+
+array_patterns_single!(String);
+array_patterns_multiple!(String, |v| v.clone(), 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16);
+
+#[cfg(feature = "http")]
+mod url;
+
+#[cfg(feature = "http")]
+pub use self::url::{Quoter, Url};
+
+#[cfg(feature = "http")]
+mod http_impls {
+    use http::Uri;
+
+    use super::ResourcePath;
+
+    impl ResourcePath for Uri {
+        fn path(&self) -> &str {
+            self.path()
+        }
+    }
+}

actix-router/src/path.rs

@@ -0,0 +1,220 @@
+use std::borrow::Cow;
+use std::ops::Index;
+
+use firestorm::profile_method;
+use serde::de;
+
+use crate::{de::PathDeserializer, Resource, ResourcePath};
+
+#[derive(Debug, Clone)]
+pub(crate) enum PathItem {
+    Static(Cow<'static, str>),
+    Segment(u16, u16),
+}
+
+impl Default for PathItem {
+    fn default() -> Self {
+        Self::Static(Cow::Borrowed(""))
+    }
+}
+
+/// Resource path match information.
+///
+/// If resource path contains variable patterns, `Path` stores them.
+#[derive(Debug, Clone, Default)]
+pub struct Path<T> {
+    path: T,
+    pub(crate) skip: u16,
+    pub(crate) segments: Vec<(Cow<'static, str>, PathItem)>,
+}
+
+impl<T: ResourcePath> Path<T> {
+    pub fn new(path: T) -> Path<T> {
+        Path {
+            path,
+            skip: 0,
+            segments: Vec::new(),
+        }
+    }
+
+    /// Get reference to inner path instance.
+    #[inline]
+    pub fn get_ref(&self) -> &T {
+        &self.path
+    }
+
+    /// Get mutable reference to inner path instance.
+    #[inline]
+    pub fn get_mut(&mut self) -> &mut T {
+        &mut self.path
+    }
+
+    /// Path.
+    #[inline]
+    pub fn path(&self) -> &str {
+        profile_method!(path);
+
+        let skip = self.skip as usize;
+        let path = self.path.path();
+        if skip <= path.len() {
+            &path[skip..]
+        } else {
+            ""
+        }
+    }
+
+    /// Set new path.
+    #[inline]
+    pub fn set(&mut self, path: T) {
+        self.skip = 0;
+        self.path = path;
+        self.segments.clear();
+    }
+
+    /// Reset state.
+    #[inline]
+    pub fn reset(&mut self) {
+        self.skip = 0;
+        self.segments.clear();
+    }
+
+    /// Skip first `n` chars in path.
+    #[inline]
+    pub fn skip(&mut self, n: u16) {
+        self.skip += n;
+    }
+
+    pub(crate) fn add(&mut self, name: impl Into<Cow<'static, str>>, value: PathItem) {
+        profile_method!(add);
+
+        match value {
+            PathItem::Static(s) => self.segments.push((name.into(), PathItem::Static(s))),
+            PathItem::Segment(begin, end) => self.segments.push((
+                name.into(),
+                PathItem::Segment(self.skip + begin, self.skip + end),
+            )),
+        }
+    }
+
+    #[doc(hidden)]
+    pub fn add_static(
+        &mut self,
+        name: impl Into<Cow<'static, str>>,
+        value: impl Into<Cow<'static, str>>,
+    ) {
+        self.segments
+            .push((name.into(), PathItem::Static(value.into())));
+    }
+
+    /// Check if there are any matched patterns.
+    #[inline]
+    pub fn is_empty(&self) -> bool {
+        self.segments.is_empty()
+    }
+
+    /// Returns number of interpolated segments.
+    #[inline]
+    pub fn segment_count(&self) -> usize {
+        self.segments.len()
+    }
+
+    /// Get matched parameter by name without type conversion
+    pub fn get(&self, name: &str) -> Option<&str> {
+        profile_method!(get);
+
+        for (seg_name, val) in self.segments.iter() {
+            if name == seg_name {
+                return match val {
+                    PathItem::Static(ref s) => Some(s),
+                    PathItem::Segment(s, e) => {
+                        Some(&self.path.path()[(*s as usize)..(*e as usize)])
+                    }
+                };
+            }
+        }
+
+        None
+    }
+
+    /// Get unprocessed part of the path
+    pub fn unprocessed(&self) -> &str {
+        &self.path.path()[(self.skip as usize)..]
+    }
+
+    /// Get matched parameter by name.
+    ///
+    /// If keyed parameter is not available empty string is used as default value.
+    pub fn query(&self, key: &str) -> &str {
+        profile_method!(query);
+
+        if let Some(s) = self.get(key) {
+            s
+        } else {
+            ""
+        }
+    }
+
+    /// Return iterator to items in parameter container.
+    pub fn iter(&self) -> PathIter<'_, T> {
+        PathIter {
+            idx: 0,
+            params: self,
+        }
+    }
+
+    /// Try to deserialize matching parameters to a specified type `U`
+    pub fn load<'de, U: serde::Deserialize<'de>>(&'de self) -> Result<U, de::value::Error> {
+        profile_method!(load);
+        de::Deserialize::deserialize(PathDeserializer::new(self))
+    }
+}
+
+#[derive(Debug)]
+pub struct PathIter<'a, T> {
+    idx: usize,
+    params: &'a Path<T>,
+}
+
+impl<'a, T: ResourcePath> Iterator for PathIter<'a, T> {
+    type Item = (&'a str, &'a str);
+
+    #[inline]
+    fn next(&mut self) -> Option<(&'a str, &'a str)> {
+        if self.idx < self.params.segment_count() {
+            let idx = self.idx;
+            let res = match self.params.segments[idx].1 {
+                PathItem::Static(ref s) => s,
+                PathItem::Segment(s, e) => &self.params.path.path()[(s as usize)..(e as usize)],
+            };
+            self.idx += 1;
+            return Some((&self.params.segments[idx].0, res));
+        }
+        None
+    }
+}
+
+impl<'a, T: ResourcePath> Index<&'a str> for Path<T> {
+    type Output = str;
+
+    fn index(&self, name: &'a str) -> &str {
+        self.get(name)
+            .expect("Value for parameter is not available")
+    }
+}
+
+impl<T: ResourcePath> Index<usize> for Path<T> {
+    type Output = str;
+
+    fn index(&self, idx: usize) -> &str {
+        match self.segments[idx].1 {
+            PathItem::Static(ref s) => s,
+            PathItem::Segment(s, e) => &self.path.path()[(s as usize)..(e as usize)],
+        }
+    }
+}
+
+impl<T: ResourcePath> Resource<T> for Path<T> {
+    fn resource_path(&mut self) -> &mut Self {
+        self
+    }
+}

actix-router/src/router.rs

@@ -0,0 +1,281 @@
+use firestorm::profile_method;
+
+use crate::{IntoPatterns, Resource, ResourceDef, ResourcePath};
+
+#[derive(Debug, Copy, Clone, PartialEq)]
+pub struct ResourceId(pub u16);
+
+/// Information about current resource
+#[derive(Clone, Debug)]
+pub struct ResourceInfo {
+    resource: ResourceId,
+}
+
+/// Resource router.
+// T is the resource itself
+// U is any other data needed for routing like method guards
+pub struct Router<T, U = ()> {
+    routes: Vec<(ResourceDef, T, Option<U>)>,
+}
+
+impl<T, U> Router<T, U> {
+    pub fn build() -> RouterBuilder<T, U> {
+        RouterBuilder {
+            resources: Vec::new(),
+        }
+    }
+
+    pub fn recognize<R, P>(&self, resource: &mut R) -> Option<(&T, ResourceId)>
+    where
+        R: Resource<P>,
+        P: ResourcePath,
+    {
+        profile_method!(recognize);
+
+        for item in self.routes.iter() {
+            if item.0.capture_match_info(resource.resource_path()) {
+                return Some((&item.1, ResourceId(item.0.id())));
+            }
+        }
+
+        None
+    }
+
+    pub fn recognize_mut<R, P>(&mut self, resource: &mut R) -> Option<(&mut T, ResourceId)>
+    where
+        R: Resource<P>,
+        P: ResourcePath,
+    {
+        profile_method!(recognize_mut);
+
+        for item in self.routes.iter_mut() {
+            if item.0.capture_match_info(resource.resource_path()) {
+                return Some((&mut item.1, ResourceId(item.0.id())));
+            }
+        }
+
+        None
+    }
+
+    pub fn recognize_fn<R, P, F>(&self, resource: &mut R, check: F) -> Option<(&T, ResourceId)>
+    where
+        F: Fn(&R, &Option<U>) -> bool,
+        R: Resource<P>,
+        P: ResourcePath,
+    {
+        profile_method!(recognize_checked);
+
+        for item in self.routes.iter() {
+            if item.0.capture_match_info_fn(resource, &check, &item.2) {
+                return Some((&item.1, ResourceId(item.0.id())));
+            }
+        }
+
+        None
+    }
+
+    pub fn recognize_mut_fn<R, P, F>(
+        &mut self,
+        resource: &mut R,
+        check: F,
+    ) -> Option<(&mut T, ResourceId)>
+    where
+        F: Fn(&R, &Option<U>) -> bool,
+        R: Resource<P>,
+        P: ResourcePath,
+    {
+        profile_method!(recognize_mut_checked);
+
+        for item in self.routes.iter_mut() {
+            if item.0.capture_match_info_fn(resource, &check, &item.2) {
+                return Some((&mut item.1, ResourceId(item.0.id())));
+            }
+        }
+
+        None
+    }
+}
+
+pub struct RouterBuilder<T, U = ()> {
+    resources: Vec<(ResourceDef, T, Option<U>)>,
+}
+
+impl<T, U> RouterBuilder<T, U> {
+    /// Register resource for specified path.
+    pub fn path<P: IntoPatterns>(
+        &mut self,
+        path: P,
+        resource: T,
+    ) -> &mut (ResourceDef, T, Option<U>) {
+        profile_method!(path);
+
+        self.resources
+            .push((ResourceDef::new(path), resource, None));
+        self.resources.last_mut().unwrap()
+    }
+
+    /// Register resource for specified path prefix.
+    pub fn prefix(&mut self, prefix: &str, resource: T) -> &mut (ResourceDef, T, Option<U>) {
+        profile_method!(prefix);
+
+        self.resources
+            .push((ResourceDef::prefix(prefix), resource, None));
+        self.resources.last_mut().unwrap()
+    }
+
+    /// Register resource for ResourceDef
+    pub fn rdef(&mut self, rdef: ResourceDef, resource: T) -> &mut (ResourceDef, T, Option<U>) {
+        profile_method!(rdef);
+
+        self.resources.push((rdef, resource, None));
+        self.resources.last_mut().unwrap()
+    }
+
+    /// Finish configuration and create router instance.
+    pub fn finish(self) -> Router<T, U> {
+        Router {
+            routes: self.resources,
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use crate::path::Path;
+    use crate::router::{ResourceId, Router};
+
+    #[allow(clippy::cognitive_complexity)]
+    #[test]
+    fn test_recognizer_1() {
+        let mut router = Router::<usize>::build();
+        router.path("/name", 10).0.set_id(0);
+        router.path("/name/{val}", 11).0.set_id(1);
+        router.path("/name/{val}/index.html", 12).0.set_id(2);
+        router.path("/file/{file}.{ext}", 13).0.set_id(3);
+        router.path("/v{val}/{val2}/index.html", 14).0.set_id(4);
+        router.path("/v/{tail:.*}", 15).0.set_id(5);
+        router.path("/test2/{test}.html", 16).0.set_id(6);
+        router.path("/{test}/index.html", 17).0.set_id(7);
+        let mut router = router.finish();
+
+        let mut path = Path::new("/unknown");
+        assert!(router.recognize_mut(&mut path).is_none());
+
+        let mut path = Path::new("/name");
+        let (h, info) = router.recognize_mut(&mut path).unwrap();
+        assert_eq!(*h, 10);
+        assert_eq!(info, ResourceId(0));
+        assert!(path.is_empty());
+
+        let mut path = Path::new("/name/value");
+        let (h, info) = router.recognize_mut(&mut path).unwrap();
+        assert_eq!(*h, 11);
+        assert_eq!(info, ResourceId(1));
+        assert_eq!(path.get("val").unwrap(), "value");
+        assert_eq!(&path["val"], "value");
+
+        let mut path = Path::new("/name/value2/index.html");
+        let (h, info) = router.recognize_mut(&mut path).unwrap();
+        assert_eq!(*h, 12);
+        assert_eq!(info, ResourceId(2));
+        assert_eq!(path.get("val").unwrap(), "value2");
+
+        let mut path = Path::new("/file/file.gz");
+        let (h, info) = router.recognize_mut(&mut path).unwrap();
+        assert_eq!(*h, 13);
+        assert_eq!(info, ResourceId(3));
+        assert_eq!(path.get("file").unwrap(), "file");
+        assert_eq!(path.get("ext").unwrap(), "gz");
+
+        let mut path = Path::new("/vtest/ttt/index.html");
+        let (h, info) = router.recognize_mut(&mut path).unwrap();
+        assert_eq!(*h, 14);
+        assert_eq!(info, ResourceId(4));
+        assert_eq!(path.get("val").unwrap(), "test");
+        assert_eq!(path.get("val2").unwrap(), "ttt");
+
+        let mut path = Path::new("/v/blah-blah/index.html");
+        let (h, info) = router.recognize_mut(&mut path).unwrap();
+        assert_eq!(*h, 15);
+        assert_eq!(info, ResourceId(5));
+        assert_eq!(path.get("tail").unwrap(), "blah-blah/index.html");
+
+        let mut path = Path::new("/test2/index.html");
+        let (h, info) = router.recognize_mut(&mut path).unwrap();
+        assert_eq!(*h, 16);
+        assert_eq!(info, ResourceId(6));
+        assert_eq!(path.get("test").unwrap(), "index");
+
+        let mut path = Path::new("/bbb/index.html");
+        let (h, info) = router.recognize_mut(&mut path).unwrap();
+        assert_eq!(*h, 17);
+        assert_eq!(info, ResourceId(7));
+        assert_eq!(path.get("test").unwrap(), "bbb");
+    }
+
+    #[test]
+    fn test_recognizer_2() {
+        let mut router = Router::<usize>::build();
+        router.path("/index.json", 10);
+        router.path("/{source}.json", 11);
+        let mut router = router.finish();
+
+        let mut path = Path::new("/index.json");
+        let (h, _) = router.recognize_mut(&mut path).unwrap();
+        assert_eq!(*h, 10);
+
+        let mut path = Path::new("/test.json");
+        let (h, _) = router.recognize_mut(&mut path).unwrap();
+        assert_eq!(*h, 11);
+    }
+
+    #[test]
+    fn test_recognizer_with_prefix() {
+        let mut router = Router::<usize>::build();
+        router.path("/name", 10).0.set_id(0);
+        router.path("/name/{val}", 11).0.set_id(1);
+        let mut router = router.finish();
+
+        let mut path = Path::new("/name");
+        path.skip(5);
+        assert!(router.recognize_mut(&mut path).is_none());
+
+        let mut path = Path::new("/test/name");
+        path.skip(5);
+        let (h, _) = router.recognize_mut(&mut path).unwrap();
+        assert_eq!(*h, 10);
+
+        let mut path = Path::new("/test/name/value");
+        path.skip(5);
+        let (h, id) = router.recognize_mut(&mut path).unwrap();
+        assert_eq!(*h, 11);
+        assert_eq!(id, ResourceId(1));
+        assert_eq!(path.get("val").unwrap(), "value");
+        assert_eq!(&path["val"], "value");
+
+        // same patterns
+        let mut router = Router::<usize>::build();
+        router.path("/name", 10);
+        router.path("/name/{val}", 11);
+        let mut router = router.finish();
+
+        let mut path = Path::new("/name");
+        path.skip(6);
+        assert!(router.recognize_mut(&mut path).is_none());
+
+        let mut path = Path::new("/test2/name");
+        path.skip(6);
+        let (h, _) = router.recognize_mut(&mut path).unwrap();
+        assert_eq!(*h, 10);
+
+        let mut path = Path::new("/test2/name-test");
+        path.skip(6);
+        assert!(router.recognize_mut(&mut path).is_none());
+
+        let mut path = Path::new("/test2/name/ttt");
+        path.skip(6);
+        let (h, _) = router.recognize_mut(&mut path).unwrap();
+        assert_eq!(*h, 11);
+        assert_eq!(&path["val"], "ttt");
+    }
+}

actix-router/src/url.rs

@@ -0,0 +1,288 @@
+use crate::ResourcePath;
+
+#[allow(dead_code)]
+const GEN_DELIMS: &[u8] = b":/?#[]@";
+#[allow(dead_code)]
+const SUB_DELIMS_WITHOUT_QS: &[u8] = b"!$'()*,";
+#[allow(dead_code)]
+const SUB_DELIMS: &[u8] = b"!$'()*,+?=;";
+#[allow(dead_code)]
+const RESERVED: &[u8] = b":/?#[]@!$'()*,+?=;";
+#[allow(dead_code)]
+const UNRESERVED: &[u8] = b"abcdefghijklmnopqrstuvwxyz
+    ABCDEFGHIJKLMNOPQRSTUVWXYZ
+    1234567890
+    -._~";
+const ALLOWED: &[u8] = b"abcdefghijklmnopqrstuvwxyz
+    ABCDEFGHIJKLMNOPQRSTUVWXYZ
+    1234567890
+    -._~
+    !$'()*,";
+const QS: &[u8] = b"+&=;b";
+
+#[inline]
+fn bit_at(array: &[u8], ch: u8) -> bool {
+    array[(ch >> 3) as usize] & (1 << (ch & 7)) != 0
+}
+
+#[inline]
+fn set_bit(array: &mut [u8], ch: u8) {
+    array[(ch >> 3) as usize] |= 1 << (ch & 7)
+}
+
+thread_local! {
+    static DEFAULT_QUOTER: Quoter = Quoter::new(b"@:", b"%/+");
+}
+
+#[derive(Default, Clone, Debug)]
+pub struct Url {
+    uri: http::Uri,
+    path: Option<String>,
+}
+
+impl Url {
+    pub fn new(uri: http::Uri) -> Url {
+        let path = DEFAULT_QUOTER.with(|q| q.requote(uri.path().as_bytes()));
+
+        Url { uri, path }
+    }
+
+    pub fn with_quoter(uri: http::Uri, quoter: &Quoter) -> Url {
+        Url {
+            path: quoter.requote(uri.path().as_bytes()),
+            uri,
+        }
+    }
+
+    pub fn uri(&self) -> &http::Uri {
+        &self.uri
+    }
+
+    pub fn path(&self) -> &str {
+        if let Some(ref s) = self.path {
+            s
+        } else {
+            self.uri.path()
+        }
+    }
+
+    #[inline]
+    pub fn update(&mut self, uri: &http::Uri) {
+        self.uri = uri.clone();
+        self.path = DEFAULT_QUOTER.with(|q| q.requote(uri.path().as_bytes()));
+    }
+
+    #[inline]
+    pub fn update_with_quoter(&mut self, uri: &http::Uri, quoter: &Quoter) {
+        self.uri = uri.clone();
+        self.path = quoter.requote(uri.path().as_bytes());
+    }
+}
+
+impl ResourcePath for Url {
+    #[inline]
+    fn path(&self) -> &str {
+        self.path()
+    }
+}
+
+pub struct Quoter {
+    safe_table: [u8; 16],
+    protected_table: [u8; 16],
+}
+
+impl Quoter {
+    pub fn new(safe: &[u8], protected: &[u8]) -> Quoter {
+        let mut q = Quoter {
+            safe_table: [0; 16],
+            protected_table: [0; 16],
+        };
+
+        // prepare safe table
+        for i in 0..128 {
+            if ALLOWED.contains(&i) {
+                set_bit(&mut q.safe_table, i);
+            }
+            if QS.contains(&i) {
+                set_bit(&mut q.safe_table, i);
+            }
+        }
+
+        for ch in safe {
+            set_bit(&mut q.safe_table, *ch)
+        }
+
+        // prepare protected table
+        for ch in protected {
+            set_bit(&mut q.safe_table, *ch);
+            set_bit(&mut q.protected_table, *ch);
+        }
+
+        q
+    }
+
+    pub fn requote(&self, val: &[u8]) -> Option<String> {
+        let mut has_pct = 0;
+        let mut pct = [b'%', 0, 0];
+        let mut idx = 0;
+        let mut cloned: Option<Vec<u8>> = None;
+
+        let len = val.len();
+        while idx < len {
+            let ch = val[idx];
+
+            if has_pct != 0 {
+                pct[has_pct] = val[idx];
+                has_pct += 1;
+                if has_pct == 3 {
+                    has_pct = 0;
+                    let buf = cloned.as_mut().unwrap();
+
+                    if let Some(ch) = restore_ch(pct[1], pct[2]) {
+                        if ch < 128 {
+                            if bit_at(&self.protected_table, ch) {
+                                buf.extend_from_slice(&pct);
+                                idx += 1;
+                                continue;
+                            }
+
+                            if bit_at(&self.safe_table, ch) {
+                                buf.push(ch);
+                                idx += 1;
+                                continue;
+                            }
+                        }
+                        buf.push(ch);
+                    } else {
+                        buf.extend_from_slice(&pct[..]);
+                    }
+                }
+            } else if ch == b'%' {
+                has_pct = 1;
+                if cloned.is_none() {
+                    let mut c = Vec::with_capacity(len);
+                    c.extend_from_slice(&val[..idx]);
+                    cloned = Some(c);
+                }
+            } else if let Some(ref mut cloned) = cloned {
+                cloned.push(ch)
+            }
+            idx += 1;
+        }
+
+        cloned.map(|data| String::from_utf8_lossy(&data).into_owned())
+    }
+}
+
+#[inline]
+fn from_hex(v: u8) -> Option<u8> {
+    if (b'0'..=b'9').contains(&v) {
+        Some(v - 0x30) // ord('0') == 0x30
+    } else if (b'A'..=b'F').contains(&v) {
+        Some(v - 0x41 + 10) // ord('A') == 0x41
+    } else if (b'a'..=b'f').contains(&v) {
+        Some(v - 0x61 + 10) // ord('a') == 0x61
+    } else {
+        None
+    }
+}
+
+#[inline]
+fn restore_ch(d1: u8, d2: u8) -> Option<u8> {
+    from_hex(d1).and_then(|d1| from_hex(d2).map(move |d2| d1 << 4 | d2))
+}
+
+#[cfg(test)]
+mod tests {
+    use http::Uri;
+    use std::convert::TryFrom;
+
+    use super::*;
+    use crate::{Path, ResourceDef};
+
+    const PROTECTED: &[u8] = b"%/+";
+
+    fn match_url(pattern: &'static str, url: impl AsRef<str>) -> Path<Url> {
+        let re = ResourceDef::new(pattern);
+        let uri = Uri::try_from(url.as_ref()).unwrap();
+        let mut path = Path::new(Url::new(uri));
+        assert!(re.capture_match_info(&mut path));
+        path
+    }
+
+    fn percent_encode(data: &[u8]) -> String {
+        data.iter().map(|c| format!("%{:02X}", c)).collect()
+    }
+
+    #[test]
+    fn test_parse_url() {
+        let re = "/user/{id}/test";
+
+        let path = match_url(re, "/user/2345/test");
+        assert_eq!(path.get("id").unwrap(), "2345");
+
+        // "%25" should never be decoded into '%' to guarantee the output is a valid
+        // percent-encoded format
+        let path = match_url(re, "/user/qwe%25/test");
+        assert_eq!(path.get("id").unwrap(), "qwe%25");
+
+        let path = match_url(re, "/user/qwe%25rty/test");
+        assert_eq!(path.get("id").unwrap(), "qwe%25rty");
+    }
+
+    #[test]
+    fn test_protected_chars() {
+        let encoded = percent_encode(PROTECTED);
+        let path = match_url("/user/{id}/test", format!("/user/{}/test", encoded));
+        assert_eq!(path.get("id").unwrap(), &encoded);
+    }
+
+    #[test]
+    fn test_non_protecteed_ascii() {
+        let nonprotected_ascii = ('\u{0}'..='\u{7F}')
+            .filter(|&c| c.is_ascii() && !PROTECTED.contains(&(c as u8)))
+            .collect::<String>();
+        let encoded = percent_encode(nonprotected_ascii.as_bytes());
+        let path = match_url("/user/{id}/test", format!("/user/{}/test", encoded));
+        assert_eq!(path.get("id").unwrap(), &nonprotected_ascii);
+    }
+
+    #[test]
+    fn test_valid_utf8_multibyte() {
+        let test = ('\u{FF00}'..='\u{FFFF}').collect::<String>();
+        let encoded = percent_encode(test.as_bytes());
+        let path = match_url("/a/{id}/b", format!("/a/{}/b", &encoded));
+        assert_eq!(path.get("id").unwrap(), &test);
+    }
+
+    #[test]
+    fn test_invalid_utf8() {
+        let invalid_utf8 = percent_encode((0x80..=0xff).collect::<Vec<_>>().as_slice());
+        let uri = Uri::try_from(format!("/{}", invalid_utf8)).unwrap();
+        let path = Path::new(Url::new(uri));
+
+        // We should always get a valid utf8 string
+        assert!(String::from_utf8(path.path().as_bytes().to_owned()).is_ok());
+    }
+
+    #[test]
+    fn test_from_hex() {
+        let hex = b"0123456789abcdefABCDEF";
+
+        for i in 0..256 {
+            let c = i as u8;
+            if hex.contains(&c) {
+                assert!(from_hex(c).is_some())
+            } else {
+                assert!(from_hex(c).is_none())
+            }
+        }
+
+        let expected = [
+            0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 10, 11, 12, 13, 14, 15,
+        ];
+        for i in 0..hex.len() {
+            assert_eq!(from_hex(hex[i]).unwrap(), expected[i]);
+        }
+    }
+}

actix-test/CHANGES.md

@@ -3,6 +3,10 @@
 ## Unreleased - 2021-xx-xx
 
 
+## 0.1.0-beta.4 - 2021-09-09
+* Minimum supported Rust version (MSRV) is now 1.51.
+
+
 ## 0.1.0-beta.3 - 2021-06-20
 * No significant changes from `0.1.0-beta.2`.
 

actix-test/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "actix-test"
-version = "0.1.0-beta.3"
+version = "0.1.0-beta.4"
 authors = [
     "Nikolay Kim <fafhrd91@gmail.com>",
     "Rob Ede <robjtede@icloud.com>",
@@ -20,13 +20,13 @@ openssl = ["tls-openssl", "actix-http/openssl"]
 
 [dependencies]
 actix-codec = "0.4.0"
-actix-http = "3.0.0-beta.8"
-actix-http-test = { version = "3.0.0-beta.4", features = [] }
+actix-http = "3.0.0-beta.10"
+actix-http-test = "3.0.0-beta.5"
 actix-service = "2.0.0"
 actix-utils = "3.0.0"
-actix-web = { version = "4.0.0-beta.8", default-features = false, features = ["cookies"] }
+actix-web = { version = "4.0.0-beta.9", default-features = false, features = ["cookies"] }
 actix-rt = "2.1"
-awc = { version = "3.0.0-beta.7", default-features = false, features = ["cookies"] }
+awc = { version = "3.0.0-beta.8", default-features = false, features = ["cookies"] }
 
 futures-core = { version = "0.3.7", default-features = false, features = ["std"] }
 futures-util = { version = "0.3.7", default-features = false, features = [] }

actix-web-actors/CHANGES.md

@@ -3,6 +3,10 @@
 ## Unreleased - 2021-xx-xx
 
 
+## 4.0.0-beta.7 - 2021-09-09
+* Minimum supported Rust version (MSRV) is now 1.51.
+
+
 ## 4.0.0-beta.6 - 2021-06-26
 * Update `actix` to `0.12`. [#2277]
 

actix-web-actors/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "actix-web-actors"
-version = "4.0.0-beta.6"
+version = "4.0.0-beta.7"
 authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
 description = "Actix actors support for Actix Web"
 keywords = ["actix", "http", "web", "framework", "async"]
@@ -16,8 +16,8 @@ path = "src/lib.rs"
 [dependencies]
 actix = { version = "0.12.0", default-features = false }
 actix-codec = "0.4.0"
-actix-http = "3.0.0-beta.8"
-actix-web = { version = "4.0.0-beta.8", default-features = false }
+actix-http = "3.0.0-beta.10"
+actix-web = { version = "4.0.0-beta.9", default-features = false }
 
 bytes = "1"
 bytestring = "1"
@@ -29,6 +29,6 @@ tokio = { version = "1", features = ["sync"] }
 actix-rt = "2.2"
 actix-test = "0.1.0-beta.3"
 
-awc = { version = "3.0.0-beta.7", default-features = false }
+awc = { version = "3.0.0-beta.8", default-features = false }
 env_logger = "0.8"
 futures-util = { version = "0.3.7", default-features = false }

actix-web-actors/README.md

@@ -3,15 +3,15 @@
 > Actix actors support for Actix Web.
 
 [![crates.io](https://img.shields.io/crates/v/actix-web-actors?label=latest)](https://crates.io/crates/actix-web-actors)
-[![Documentation](https://docs.rs/actix-web-actors/badge.svg?version=4.0.0-beta.6)](https://docs.rs/actix-web-actors/4.0.0-beta.6)
-[![Version](https://img.shields.io/badge/rustc-1.46+-ab6000.svg)](https://blog.rust-lang.org/2020/03/12/Rust-1.46.html)
+[![Documentation](https://docs.rs/actix-web-actors/badge.svg?version=4.0.0-beta.7)](https://docs.rs/actix-web-actors/4.0.0-beta.7)
+[![Version](https://img.shields.io/badge/rustc-1.51+-ab6000.svg)](https://blog.rust-lang.org/2020/03/12/Rust-1.51.html)
 ![License](https://img.shields.io/crates/l/actix-web-actors.svg)
 <br />
-[![dependency status](https://deps.rs/crate/actix-web-actors/4.0.0-beta.6/status.svg)](https://deps.rs/crate/actix-web-actors/4.0.0-beta.6)
+[![dependency status](https://deps.rs/crate/actix-web-actors/4.0.0-beta.7/status.svg)](https://deps.rs/crate/actix-web-actors/4.0.0-beta.7)
 [![Download](https://img.shields.io/crates/d/actix-web-actors.svg)](https://crates.io/crates/actix-web-actors)
 [![Chat on Discord](https://img.shields.io/discord/771444961383153695?label=chat&logo=discord)](https://discord.gg/NWpN5mmg3x)
 
 ## Documentation & Resources
 
 - [API Documentation](https://docs.rs/actix-web-actors)
-- Minimum supported Rust version: 1.46 or later
+- Minimum supported Rust version: 1.51 or later

actix-web-codegen/CHANGES.md

@@ -3,6 +3,13 @@
 ## Unreleased - 2021-xx-xx
 
 
+## 0.5.0-beta.4 - 2021-09-09
+* In routing macros, paths are now validated at compile time. [#2350]
+* Minimum supported Rust version (MSRV) is now 1.51.
+
+[#2350]: https://github.com/actix/actix-web/pull/2350
+
+
 ## 0.5.0-beta.3 - 2021-06-17
 * No notable changes.
 

actix-web-codegen/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "actix-web-codegen"
-version = "0.5.0-beta.3"
+version = "0.5.0-beta.4"
 description = "Routing and runtime macros for Actix Web"
 readme = "README.md"
 homepage = "https://actix.rs"
@@ -17,12 +17,13 @@ proc-macro = true
 quote = "1"
 syn = { version = "1", features = ["full", "parsing"] }
 proc-macro2 = "1"
+actix-router = "0.5.0-beta.2"
 
 [dev-dependencies]
 actix-rt = "2.2"
 actix-test = "0.1.0-beta.3"
 actix-utils = "3.0.0"
-actix-web = "4.0.0-beta.8"
+actix-web = "4.0.0-beta.9"
 
 futures-core = { version = "0.3.7", default-features = false, features = ["alloc"] }
 trybuild = "1"

actix-web-codegen/README.md

@@ -3,18 +3,18 @@
 > Routing and runtime macros for Actix Web.
 
 [![crates.io](https://img.shields.io/crates/v/actix-web-codegen?label=latest)](https://crates.io/crates/actix-web-codegen)
-[![Documentation](https://docs.rs/actix-web-codegen/badge.svg?version=0.5.0-beta.3)](https://docs.rs/actix-web-codegen/0.5.0-beta.3)
-[![Version](https://img.shields.io/badge/rustc-1.46+-ab6000.svg)](https://blog.rust-lang.org/2020/03/12/Rust-1.46.html)
+[![Documentation](https://docs.rs/actix-web-codegen/badge.svg?version=0.5.0-beta.4)](https://docs.rs/actix-web-codegen/0.5.0-beta.4)
+[![Version](https://img.shields.io/badge/rustc-1.51+-ab6000.svg)](https://blog.rust-lang.org/2020/03/12/Rust-1.51.html)
 ![License](https://img.shields.io/crates/l/actix-web-codegen.svg)
 <br />
-[![dependency status](https://deps.rs/crate/actix-web-codegen/0.5.0-beta.3/status.svg)](https://deps.rs/crate/actix-web-codegen/0.5.0-beta.3)
+[![dependency status](https://deps.rs/crate/actix-web-codegen/0.5.0-beta.4/status.svg)](https://deps.rs/crate/actix-web-codegen/0.5.0-beta.4)
 [![Download](https://img.shields.io/crates/d/actix-web-codegen.svg)](https://crates.io/crates/actix-web-codegen)
 [![Chat on Discord](https://img.shields.io/discord/771444961383153695?label=chat&logo=discord)](https://discord.gg/NWpN5mmg3x)
 
 ## Documentation & Resources
 
 - [API Documentation](https://docs.rs/actix-web-codegen)
-- Minimum supported Rust version: 1.46 or later.
+- Minimum supported Rust version: 1.51 or later.
 
 ## Compile Testing
 

actix-web-codegen/src/route.rs

@@ -3,6 +3,7 @@ extern crate proc_macro;
 use std::collections::HashSet;
 use std::convert::TryFrom;
 
+use actix_router::ResourceDef;
 use proc_macro::TokenStream;
 use proc_macro2::{Span, TokenStream as TokenStream2};
 use quote::{format_ident, quote, ToTokens, TokenStreamExt};
@@ -101,6 +102,7 @@ impl Args {
             match arg {
                 NestedMeta::Lit(syn::Lit::Str(lit)) => match path {
                     None => {
+                        let _ = ResourceDef::new(lit.value());
                         path = Some(lit);
                     }
                     _ => {

actix-web-codegen/tests/trybuild.rs

@@ -1,4 +1,4 @@
-#[rustversion::stable(1.46)] // MSRV
+#[rustversion::stable(1.51)] // MSRV
 #[test]
 fn compile_macros() {
     let t = trybuild::TestCases::new();
@@ -10,6 +10,7 @@ fn compile_macros() {
     t.compile_fail("tests/trybuild/route-missing-method-fail.rs");
     t.compile_fail("tests/trybuild/route-duplicate-method-fail.rs");
     t.compile_fail("tests/trybuild/route-unexpected-method-fail.rs");
+    t.compile_fail("tests/trybuild/route-malformed-path-fail.rs");
 
     t.pass("tests/trybuild/docstring-ok.rs");
 }

actix-web-codegen/tests/trybuild/route-malformed-path-fail.rs

@@ -0,0 +1,33 @@
+use actix_web_codegen::get;
+
+#[get("/{")]
+async fn zero() -> &'static str {
+    "malformed resource def"
+}
+
+#[get("/{foo")]
+async fn one() -> &'static str {
+    "malformed resource def"
+}
+
+#[get("/{}")]
+async fn two() -> &'static str {
+    "malformed resource def"
+}
+
+#[get("/*")]
+async fn three() -> &'static str {
+    "malformed resource def"
+}
+
+#[get("/{tail:\\d+}*")]
+async fn four() -> &'static str {
+    "malformed resource def"
+}
+
+#[get("/{a}/{b}/{c}/{d}/{e}/{f}/{g}/{h}/{i}/{j}/{k}/{l}/{m}/{n}/{o}/{p}/{q}")]
+async fn five() -> &'static str {
+    "malformed resource def"
+}
+
+fn main() {}

actix-web-codegen/tests/trybuild/route-malformed-path-fail.stderr

@@ -0,0 +1,42 @@
+error: custom attribute panicked
+ --> $DIR/route-malformed-path-fail.rs:3:1
+  |
+3 | #[get("/{")]
+  | ^^^^^^^^^^^^
+  |
+  = help: message: pattern "{" contains malformed dynamic segment
+
+error: custom attribute panicked
+ --> $DIR/route-malformed-path-fail.rs:8:1
+  |
+8 | #[get("/{foo")]
+  | ^^^^^^^^^^^^^^^
+  |
+  = help: message: pattern "{foo" contains malformed dynamic segment
+
+error: custom attribute panicked
+  --> $DIR/route-malformed-path-fail.rs:13:1
+   |
+13 | #[get("/{}")]
+   | ^^^^^^^^^^^^^
+   |
+   = help: message: Wrong path pattern: "/{}" regex parse error:
+               ((?s-m)^/(?P<>[^/]+))$
+                            ^
+           error: empty capture group name
+
+error: custom attribute panicked
+  --> $DIR/route-malformed-path-fail.rs:23:1
+   |
+23 | #[get("/{tail:\\d+}*")]
+   | ^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = help: message: custom regex is not supported for tail match
+
+error: custom attribute panicked
+  --> $DIR/route-malformed-path-fail.rs:28:1
+   |
+28 | #[get("/{a}/{b}/{c}/{d}/{e}/{f}/{g}/{h}/{i}/{j}/{k}/{l}/{m}/{n}/{o}/{p}/{q}")]
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = help: message: Only 16 dynamic segments are allowed, provided: 17

awc/CHANGES.md

@@ -3,6 +3,13 @@
 ## Unreleased - 2021-xx-xx
 
 
+## 3.0.0-beta.8 - 2021-09-09
+### Changed
+* Send headers within the redirect requests. [#2310]
+
+[#2310]: https://github.com/actix/actix-web/pull/2310
+
+
 ## 3.0.0-beta.7 - 2021-06-26
 ### Changed
 * Change compression algorithm features flags. [#2250]

awc/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "awc"
-version = "3.0.0-beta.7"
+version = "3.0.0-beta.8"
 authors = [
     "Nikolay Kim <fafhrd91@gmail.com>",
     "fakeshadow <24548779@qq.com>",
@@ -55,7 +55,7 @@ __compress = []
 [dependencies]
 actix-codec = "0.4.0"
 actix-service = "2.0.0"
-actix-http = "3.0.0-beta.8"
+actix-http = "3.0.0-beta.10"
 actix-rt = { version = "2.1", default-features = false }
 
 base64 = "0.13"
@@ -77,9 +77,9 @@ tls-openssl = { version = "0.10.9", package = "openssl", optional = true }
 tls-rustls = { version = "0.19.0", package = "rustls", optional = true, features = ["dangerous_configuration"] }
 
 [dev-dependencies]
-actix-web = { version = "4.0.0-beta.8", features = ["openssl"] }
-actix-http = { version = "3.0.0-beta.8", features = ["openssl"] }
-actix-http-test = { version = "3.0.0-beta.4", features = ["openssl"] }
+actix-web = { version = "4.0.0-beta.9", features = ["openssl"] }
+actix-http = { version = "3.0.0-beta.10", features = ["openssl"] }
+actix-http-test = { version = "3.0.0-beta.5", features = ["openssl"] }
 actix-utils = "3.0.0"
 actix-server = "2.0.0-beta.3"
 actix-tls = { version = "3.0.0-beta.5", features = ["openssl", "rustls"] }

awc/README.md

@@ -3,16 +3,16 @@
 > Async HTTP and WebSocket client library.
 
 [![crates.io](https://img.shields.io/crates/v/awc?label=latest)](https://crates.io/crates/awc)
-[![Documentation](https://docs.rs/awc/badge.svg?version=3.0.0-beta.7)](https://docs.rs/awc/3.0.0-beta.7)
+[![Documentation](https://docs.rs/awc/badge.svg?version=3.0.0-beta.8)](https://docs.rs/awc/3.0.0-beta.8)
 ![MIT or Apache 2.0 licensed](https://img.shields.io/crates/l/awc)
-[![Dependency Status](https://deps.rs/crate/awc/3.0.0-beta.7/status.svg)](https://deps.rs/crate/awc/3.0.0-beta.7)
+[![Dependency Status](https://deps.rs/crate/awc/3.0.0-beta.8/status.svg)](https://deps.rs/crate/awc/3.0.0-beta.8)
 [![Chat on Discord](https://img.shields.io/discord/771444961383153695?label=chat&logo=discord)](https://discord.gg/NWpN5mmg3x)
 
 ## Documentation & Resources
 
 - [API Documentation](https://docs.rs/awc)
 - [Example Project](https://github.com/actix/examples/tree/HEAD/security/awc_https)
-- Minimum Supported Rust Version (MSRV): 1.46.0
+- Minimum Supported Rust Version (MSRV): 1.51.0
 
 ## Example
 

awc/src/middleware/redirect.rs

@@ -85,10 +85,12 @@ where
                 let max_redirect_times = self.max_redirect_times;
 
                 // backup the uri and method for reuse schema and authority.
-                let (uri, method) = match head {
-                    RequestHeadType::Owned(ref head) => (head.uri.clone(), head.method.clone()),
+                let (uri, method, headers) = match head {
+                    RequestHeadType::Owned(ref head) => {
+                        (head.uri.clone(), head.method.clone(), head.headers.clone())
+                    }
                     RequestHeadType::Rc(ref head, ..) => {
-                        (head.uri.clone(), head.method.clone())
+                        (head.uri.clone(), head.method.clone(), head.headers.clone())
                     }
                 };
 
@@ -104,6 +106,7 @@ where
                     max_redirect_times,
                     uri: Some(uri),
                     method: Some(method),
+                    headers: Some(headers),
                     body: body_opt,
                     addr,
                     connector: Some(connector),
@@ -127,9 +130,10 @@ pin_project_lite::pin_project! {
             max_redirect_times: u8,
             uri: Option<Uri>,
             method: Option<Method>,
+            headers: Option<header::HeaderMap>,
             body: Option<Bytes>,
             addr: Option<SocketAddr>,
-            connector: Option<Rc<S>>
+            connector: Option<Rc<S>>,
         }
     }
 }
@@ -148,6 +152,7 @@ where
                 max_redirect_times,
                 uri,
                 method,
+                headers,
                 body,
                 addr,
                 connector,
@@ -156,79 +161,60 @@ where
                     StatusCode::MOVED_PERMANENTLY
                     | StatusCode::FOUND
                     | StatusCode::SEE_OTHER
+                    | StatusCode::TEMPORARY_REDIRECT
+                    | StatusCode::PERMANENT_REDIRECT
                         if *max_redirect_times > 0 =>
                     {
-                        let org_uri = uri.take().unwrap();
-                        // rebuild uri from the location header value.
-                        let uri = rebuild_uri(&res, org_uri)?;
+                        let is_redirect = res.head().status == StatusCode::TEMPORARY_REDIRECT
+                            || res.head().status == StatusCode::PERMANENT_REDIRECT;
 
-                        // reset method
-                        let method = method.take().unwrap();
-                        let method = match method {
-                            Method::GET | Method::HEAD => method,
-                            _ => Method::GET,
-                        };
+                        let prev_uri = uri.take().unwrap();
+
+                        // rebuild uri from the location header value.
+                        let next_uri = build_next_uri(&res, &prev_uri)?;
 
                         // take ownership of states that could be reused
                         let addr = addr.take();
                         let connector = connector.take();
-                        let mut max_redirect_times = *max_redirect_times;
 
-                        // use a new request head.
-                        let mut head = RequestHead::default();
-                        head.uri = uri.clone();
-                        head.method = method.clone();
-
-                        let head = RequestHeadType::Owned(head);
-
-                        max_redirect_times -= 1;
-
-                        let fut = connector
-                            .as_ref()
-                            .unwrap()
-                            // remove body
-                            .call(ConnectRequest::Client(head, Body::None, addr));
-
-                        self.set(RedirectServiceFuture::Client {
-                            fut,
-                            max_redirect_times,
-                            uri: Some(uri),
-                            method: Some(method),
-                            // body is dropped on 301,302,303
-                            body: None,
-                            addr,
-                            connector,
-                        });
-
-                        self.poll(cx)
-                    }
-                    StatusCode::TEMPORARY_REDIRECT | StatusCode::PERMANENT_REDIRECT
-                        if *max_redirect_times > 0 =>
-                    {
-                        let org_uri = uri.take().unwrap();
-                        // rebuild uri from the location header value.
-                        let uri = rebuild_uri(&res, org_uri)?;
-
-                        // try to reuse body
-                        let body = body.take();
-                        let body_new = match body {
-                            Some(ref bytes) => Body::Bytes(bytes.clone()),
-                            // TODO: should this be Body::Empty or Body::None.
-                            _ => Body::Empty,
+                        // reset method
+                        let method = if is_redirect {
+                            method.take().unwrap()
+                        } else {
+                            let method = method.take().unwrap();
+                            match method {
+                                Method::GET | Method::HEAD => method,
+                                _ => Method::GET,
+                            }
                         };
 
-                        let addr = addr.take();
-                        let method = method.take().unwrap();
-                        let connector = connector.take();
-                        let mut max_redirect_times = *max_redirect_times;
+                        let mut body = body.take();
+                        let body_new = if is_redirect {
+                            // try to reuse body
+                            match body {
+                                Some(ref bytes) => Body::Bytes(bytes.clone()),
+                                // TODO: should this be Body::Empty or Body::None.
+                                _ => Body::Empty,
+                            }
+                        } else {
+                            body = None;
+                            // remove body
+                            Body::None
+                        };
+
+                        let mut headers = headers.take().unwrap();
+
+                        remove_sensitive_headers(&mut headers, &prev_uri, &next_uri);
 
                         // use a new request head.
                         let mut head = RequestHead::default();
-                        head.uri = uri.clone();
+                        head.uri = next_uri.clone();
                         head.method = method.clone();
+                        head.headers = headers.clone();
 
                         let head = RequestHeadType::Owned(head);
 
+                        let mut max_redirect_times = *max_redirect_times;
                         max_redirect_times -= 1;
 
                         let fut = connector
@@ -239,8 +225,9 @@ where
                         self.set(RedirectServiceFuture::Client {
                             fut,
                             max_redirect_times,
-                            uri: Some(uri),
+                            uri: Some(next_uri),
                             method: Some(method),
+                            headers: Some(headers),
                             body,
                             addr,
                             connector,
@@ -256,7 +243,7 @@ where
     }
 }
 
-fn rebuild_uri(res: &ClientResponse, org_uri: Uri) -> Result<Uri, SendRequestError> {
+fn build_next_uri(res: &ClientResponse, prev_uri: &Uri) -> Result<Uri, SendRequestError> {
     let uri = res
         .headers()
         .get(header::LOCATION)
@@ -266,8 +253,8 @@ fn rebuild_uri(res: &ClientResponse, org_uri: Uri) -> Result<Uri, SendRequestErr
                 .map_err(|e| SendRequestError::Url(InvalidUrl::HttpError(e.into())))?;
             if uri.scheme().is_none() || uri.authority().is_none() {
                 let uri = Uri::builder()
-                    .scheme(org_uri.scheme().cloned().unwrap())
-                    .authority(org_uri.authority().cloned().unwrap())
+                    .scheme(prev_uri.scheme().cloned().unwrap())
+                    .authority(prev_uri.authority().cloned().unwrap())
                     .path_and_query(value.as_bytes())
                     .build()?;
                 Ok::<_, SendRequestError>(uri)
@@ -281,12 +268,25 @@ fn rebuild_uri(res: &ClientResponse, org_uri: Uri) -> Result<Uri, SendRequestErr
     Ok(uri)
 }
 
+fn remove_sensitive_headers(headers: &mut header::HeaderMap, prev_uri: &Uri, next_uri: &Uri) {
+    if next_uri.host() != prev_uri.host()
+        || next_uri.port() != prev_uri.port()
+        || next_uri.scheme() != prev_uri.scheme()
+    {
+        headers.remove(header::COOKIE);
+        headers.remove(header::AUTHORIZATION);
+        headers.remove(header::PROXY_AUTHORIZATION);
+    }
+}
+
 #[cfg(test)]
 mod tests {
-    use actix_web::{web, App, Error, HttpResponse};
+    use actix_web::{web, App, Error, HttpRequest, HttpResponse};
 
     use super::*;
+    use crate::http::HeaderValue;
     use crate::ClientBuilder;
+    use std::str::FromStr;
 
     #[actix_rt::test]
     async fn test_basic_redirect() {
@@ -347,4 +347,239 @@ mod tests {
 
         assert_eq!(res.status().as_u16(), 302);
     }
+
+    #[actix_rt::test]
+    async fn test_redirect_status_kind_307_308() {
+        let srv = actix_test::start(|| {
+            async fn root() -> HttpResponse {
+                HttpResponse::TemporaryRedirect()
+                    .append_header(("location", "/test"))
+                    .finish()
+            }
+
+            async fn test(req: HttpRequest, body: Bytes) -> HttpResponse {
+                if req.method() == Method::POST && !body.is_empty() {
+                    HttpResponse::Ok().finish()
+                } else {
+                    HttpResponse::InternalServerError().finish()
+                }
+            }
+
+            App::new()
+                .service(web::resource("/").route(web::to(root)))
+                .service(web::resource("/test").route(web::to(test)))
+        });
+
+        let res = srv.post("/").send_body("Hello").await.unwrap();
+        assert_eq!(res.status().as_u16(), 200);
+    }
+
+    #[actix_rt::test]
+    async fn test_redirect_status_kind_301_302_303() {
+        let srv = actix_test::start(|| {
+            async fn root() -> HttpResponse {
+                HttpResponse::Found()
+                    .append_header(("location", "/test"))
+                    .finish()
+            }
+
+            async fn test(req: HttpRequest, body: Bytes) -> HttpResponse {
+                if (req.method() == Method::GET || req.method() == Method::HEAD)
+                    && body.is_empty()
+                {
+                    HttpResponse::Ok().finish()
+                } else {
+                    HttpResponse::InternalServerError().finish()
+                }
+            }
+
+            App::new()
+                .service(web::resource("/").route(web::to(root)))
+                .service(web::resource("/test").route(web::to(test)))
+        });
+
+        let res = srv.post("/").send_body("Hello").await.unwrap();
+        assert_eq!(res.status().as_u16(), 200);
+
+        let res = srv.post("/").send().await.unwrap();
+        assert_eq!(res.status().as_u16(), 200);
+    }
+
+    #[actix_rt::test]
+    async fn test_redirect_headers() {
+        let srv = actix_test::start(|| {
+            async fn root(req: HttpRequest) -> HttpResponse {
+                if req
+                    .headers()
+                    .get("custom")
+                    .unwrap_or(&HeaderValue::from_str("").unwrap())
+                    == "value"
+                {
+                    HttpResponse::Found()
+                        .append_header(("location", "/test"))
+                        .finish()
+                } else {
+                    HttpResponse::InternalServerError().finish()
+                }
+            }
+
+            async fn test(req: HttpRequest) -> HttpResponse {
+                if req
+                    .headers()
+                    .get("custom")
+                    .unwrap_or(&HeaderValue::from_str("").unwrap())
+                    == "value"
+                {
+                    HttpResponse::Ok().finish()
+                } else {
+                    HttpResponse::InternalServerError().finish()
+                }
+            }
+
+            App::new()
+                .service(web::resource("/").route(web::to(root)))
+                .service(web::resource("/test").route(web::to(test)))
+        });
+
+        let client = ClientBuilder::new()
+            .header("custom", "value")
+            .disable_redirects()
+            .finish();
+        let res = client.get(srv.url("/")).send().await.unwrap();
+        assert_eq!(res.status().as_u16(), 302);
+
+        let client = ClientBuilder::new().header("custom", "value").finish();
+        let res = client.get(srv.url("/")).send().await.unwrap();
+        assert_eq!(res.status().as_u16(), 200);
+
+        let client = ClientBuilder::new().finish();
+        let res = client
+            .get(srv.url("/"))
+            .insert_header(("custom", "value"))
+            .send()
+            .await
+            .unwrap();
+        assert_eq!(res.status().as_u16(), 200);
+    }
+
+    #[actix_rt::test]
+    async fn test_redirect_cross_origin_headers() {
+        // defining two services to have two different origins
+        let srv2 = actix_test::start(|| {
+            async fn root(req: HttpRequest) -> HttpResponse {
+                if req.headers().get(header::AUTHORIZATION).is_none() {
+                    HttpResponse::Ok().finish()
+                } else {
+                    HttpResponse::InternalServerError().finish()
+                }
+            }
+
+            App::new().service(web::resource("/").route(web::to(root)))
+        });
+        let srv2_port: u16 = srv2.addr().port();
+
+        let srv1 = actix_test::start(move || {
+            async fn root(req: HttpRequest) -> HttpResponse {
+                let port = *req.app_data::<u16>().unwrap();
+                if req.headers().get(header::AUTHORIZATION).is_some() {
+                    HttpResponse::Found()
+                        .append_header((
+                            "location",
+                            format!("http://localhost:{}/", port).as_str(),
+                        ))
+                        .finish()
+                } else {
+                    HttpResponse::InternalServerError().finish()
+                }
+            }
+
+            async fn test1(req: HttpRequest) -> HttpResponse {
+                if req.headers().get(header::AUTHORIZATION).is_some() {
+                    HttpResponse::Found()
+                        .append_header(("location", "/test2"))
+                        .finish()
+                } else {
+                    HttpResponse::InternalServerError().finish()
+                }
+            }
+
+            async fn test2(req: HttpRequest) -> HttpResponse {
+                if req.headers().get(header::AUTHORIZATION).is_some() {
+                    HttpResponse::Ok().finish()
+                } else {
+                    HttpResponse::InternalServerError().finish()
+                }
+            }
+
+            App::new()
+                .app_data(srv2_port)
+                .service(web::resource("/").route(web::to(root)))
+                .service(web::resource("/test1").route(web::to(test1)))
+                .service(web::resource("/test2").route(web::to(test2)))
+        });
+
+        // send a request to different origins, http://srv1/ then http://srv2/. So it should remove the header
+        let client = ClientBuilder::new()
+            .header(header::AUTHORIZATION, "auth_key_value")
+            .finish();
+        let res = client.get(srv1.url("/")).send().await.unwrap();
+        assert_eq!(res.status().as_u16(), 200);
+
+        // send a request to same origin, http://srv1/test1 then http://srv1/test2. So it should NOT remove any header
+        let res = client.get(srv1.url("/test1")).send().await.unwrap();
+        assert_eq!(res.status().as_u16(), 200);
+    }
+
+    #[actix_rt::test]
+    async fn test_remove_sensitive_headers() {
+        fn gen_headers() -> header::HeaderMap {
+            let mut headers = header::HeaderMap::new();
+            headers.insert(header::USER_AGENT, HeaderValue::from_str("value").unwrap());
+            headers.insert(
+                header::AUTHORIZATION,
+                HeaderValue::from_str("value").unwrap(),
+            );
+            headers.insert(
+                header::PROXY_AUTHORIZATION,
+                HeaderValue::from_str("value").unwrap(),
+            );
+            headers.insert(header::COOKIE, HeaderValue::from_str("value").unwrap());
+            headers
+        }
+
+        // Same origin
+        let prev_uri = Uri::from_str("https://host/path1").unwrap();
+        let next_uri = Uri::from_str("https://host/path2").unwrap();
+        let mut headers = gen_headers();
+        remove_sensitive_headers(&mut headers, &prev_uri, &next_uri);
+        assert_eq!(headers.len(), 4);
+
+        // different schema
+        let prev_uri = Uri::from_str("http://host/").unwrap();
+        let next_uri = Uri::from_str("https://host/").unwrap();
+        let mut headers = gen_headers();
+        remove_sensitive_headers(&mut headers, &prev_uri, &next_uri);
+        assert_eq!(headers.len(), 1);
+
+        // different host
+        let prev_uri = Uri::from_str("https://host1/").unwrap();
+        let next_uri = Uri::from_str("https://host2/").unwrap();
+        let mut headers = gen_headers();
+        remove_sensitive_headers(&mut headers, &prev_uri, &next_uri);
+        assert_eq!(headers.len(), 1);
+
+        // different port
+        let prev_uri = Uri::from_str("https://host:12/").unwrap();
+        let next_uri = Uri::from_str("https://host:23/").unwrap();
+        let mut headers = gen_headers();
+        remove_sensitive_headers(&mut headers, &prev_uri, &next_uri);
+        assert_eq!(headers.len(), 1);
+
+        // different everything!
+        let prev_uri = Uri::from_str("http://host1:12/path1").unwrap();
+        let next_uri = Uri::from_str("https://host2:23/path2").unwrap();
+        let mut headers = gen_headers();
+        remove_sensitive_headers(&mut headers, &prev_uri, &next_uri);
+        assert_eq!(headers.len(), 1);
+    }
 }

clippy.toml

@@ -1 +1 @@
-msrv = "1.46"
+msrv = "1.51"

docs/graphs/net-only.dot

@@ -4,7 +4,7 @@ digraph {
     subgraph cluster_net {
         label="actix-net"
         "actix-codec" "actix-macros" "actix-rt" "actix-server" "actix-service"
-        "actix-tls" "actix-tracing" "actix-utils" "actix-router"
+        "actix-tls" "actix-tracing" "actix-utils"
     }
     
     subgraph cluster_other {
@@ -25,7 +25,6 @@ digraph {
     "actix-tls" -> { "tokio-util" }[color="#009900"]
     "actix-server" -> { "actix-service" "actix-rt" "actix-utils" "tokio" }
     "actix-rt" -> { "actix-macros" "tokio" }
-    "actix-router" -> { "bytestring" }
 
     "local-channel" -> { "local-waker" }
 

docs/graphs/web-focus.dot

@@ -10,6 +10,7 @@ digraph {
         "web-actors"
         "web-codegen"
         "http-test"
+        "router"
 
         { rank=same; "multipart" "web-actors" "http-test" };
         { rank=same; "files" "awc" "web" };
@@ -36,7 +37,7 @@ digraph {
     "rt" -> { "macros" }
 
     { rank=same; "utils" "codec" };
-    { rank=same; "rt" "macros" "service" "router" };
+    { rank=same; "rt" "macros" "service" };
 
     // actix
 

docs/graphs/web-only.dot

@@ -10,9 +10,10 @@ digraph {
         "actix-web-codegen"
         "actix-http-test"
         "actix-test"
+        "actix-router"
     }
 
-    "actix-web" -> { "actix-web-codegen" "actix-http" }
+    "actix-web" -> { "actix-web-codegen" "actix-http" "actix-router" }
     "awc" -> { "actix-http" }
     "actix-web-actors" -> { "actix" "actix-web" "actix-http" }
     "actix-multipart" -> { "actix-web" }

src/app.rs

@@ -334,7 +334,7 @@ where
         U: AsRef<str>,
     {
         let mut rdef = ResourceDef::new(url.as_ref());
-        *rdef.name_mut() = name.as_ref().to_string();
+        rdef.set_name(name.as_ref());
         self.external.push(rdef);
         self
     }

src/app_service.rs

@@ -79,7 +79,7 @@ where
             .into_iter()
             .for_each(|mut srv| srv.register(&mut config));
 
-        let mut rmap = ResourceMap::new(ResourceDef::new(""));
+        let mut rmap = ResourceMap::new(ResourceDef::prefix(""));
 
         let (config, services) = config.into_services();
 
@@ -104,7 +104,7 @@ where
 
         // complete ResourceMap tree creation
         let rmap = Rc::new(rmap);
-        rmap.finish(rmap.clone());
+        ResourceMap::finish(&rmap);
 
         // construct all async data factory futures
         let factory_futs = join_all(self.async_data_factories.iter().map(|f| f()));
@@ -291,7 +291,7 @@ impl Service<ServiceRequest> for AppRouting {
     actix_service::always_ready!();
 
     fn call(&self, mut req: ServiceRequest) -> Self::Future {
-        let res = self.router.recognize_checked(&mut req, |req, guards| {
+        let res = self.router.recognize_fn(&mut req, |req, guards| {
             if let Some(ref guards) = guards {
                 for f in guards {
                     if !f.check(req.head()) {

src/config.rs

@@ -249,7 +249,7 @@ impl ServiceConfig {
         U: AsRef<str>,
     {
         let mut rdef = ResourceDef::new(url.as_ref());
-        *rdef.name_mut() = name.as_ref().to_string();
+        rdef.set_name(name.as_ref());
         self.external.push(rdef);
         self
     }

src/dev.rs

@@ -0,0 +1,106 @@
+//! Lower-level types and re-exports.
+//!
+//! Most users will not have to interact with the types in this module, but it is useful for those
+//! writing extractors, middleware and libraries, or interacting with the service API directly.
+
+pub use crate::config::{AppConfig, AppService};
+#[doc(hidden)]
+pub use crate::handler::Handler;
+pub use crate::info::{ConnectionInfo, PeerAddr};
+pub use crate::rmap::ResourceMap;
+pub use crate::service::{HttpServiceFactory, ServiceRequest, ServiceResponse, WebService};
+
+pub use crate::types::form::UrlEncoded;
+pub use crate::types::json::JsonBody;
+pub use crate::types::readlines::Readlines;
+
+pub use actix_http::body::{AnyBody, Body, BodySize, MessageBody, ResponseBody, SizedStream};
+
+#[cfg(feature = "__compress")]
+pub use actix_http::encoding::Decoder as Decompress;
+pub use actix_http::{Extensions, Payload, PayloadStream, RequestHead, Response, ResponseHead};
+pub use actix_router::{Path, ResourceDef, ResourcePath, Url};
+pub use actix_server::Server;
+pub use actix_service::{
+    always_ready, fn_factory, fn_service, forward_ready, Service, ServiceFactory, Transform,
+};
+
+use crate::http::header::ContentEncoding;
+use actix_http::ResponseBuilder;
+
+use actix_router::Patterns;
+
+pub(crate) fn ensure_leading_slash(mut patterns: Patterns) -> Patterns {
+    match &mut patterns {
+        Patterns::Single(pat) => {
+            if !pat.is_empty() && !pat.starts_with('/') {
+                pat.insert(0, '/');
+            };
+        }
+        Patterns::List(pats) => {
+            for pat in pats {
+                if !pat.is_empty() && !pat.starts_with('/') {
+                    pat.insert(0, '/');
+                };
+            }
+        }
+    }
+
+    patterns
+}
+struct Enc(ContentEncoding);
+
+/// Helper trait that allows to set specific encoding for response.
+pub trait BodyEncoding {
+    /// Get content encoding
+    fn get_encoding(&self) -> Option<ContentEncoding>;
+
+    /// Set content encoding
+    ///
+    /// Must be used with [`crate::middleware::Compress`] to take effect.
+    fn encoding(&mut self, encoding: ContentEncoding) -> &mut Self;
+}
+
+impl BodyEncoding for ResponseBuilder {
+    fn get_encoding(&self) -> Option<ContentEncoding> {
+        self.extensions().get::<Enc>().map(|enc| enc.0)
+    }
+
+    fn encoding(&mut self, encoding: ContentEncoding) -> &mut Self {
+        self.extensions_mut().insert(Enc(encoding));
+        self
+    }
+}
+
+impl<B> BodyEncoding for Response<B> {
+    fn get_encoding(&self) -> Option<ContentEncoding> {
+        self.extensions().get::<Enc>().map(|enc| enc.0)
+    }
+
+    fn encoding(&mut self, encoding: ContentEncoding) -> &mut Self {
+        self.extensions_mut().insert(Enc(encoding));
+        self
+    }
+}
+
+impl BodyEncoding for crate::HttpResponseBuilder {
+    fn get_encoding(&self) -> Option<ContentEncoding> {
+        self.extensions().get::<Enc>().map(|enc| enc.0)
+    }
+
+    fn encoding(&mut self, encoding: ContentEncoding) -> &mut Self {
+        self.extensions_mut().insert(Enc(encoding));
+        self
+    }
+}
+
+impl<B> BodyEncoding for crate::HttpResponse<B> {
+    fn get_encoding(&self) -> Option<ContentEncoding> {
+        self.extensions().get::<Enc>().map(|enc| enc.0)
+    }
+
+    fn encoding(&mut self, encoding: ContentEncoding) -> &mut Self {
+        self.extensions_mut().insert(Enc(encoding));
+        self
+    }
+}

src/http/header/content_disposition.rs

@@ -1,10 +1,10 @@
 //! # 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
+//! "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 once_cell::sync::Lazy;
 use regex::Regex;
@@ -457,7 +457,7 @@ impl Header for ContentDisposition {
 
     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)
+            Self::from_raw(h)
         } else {
             Err(crate::error::ParseError::Header)
         }

src/info.rs

@@ -65,10 +65,10 @@ fn first_header_value<'a>(req: &'a RequestHead, name: &'_ HeaderName) -> Option<
 /// [rfc7239-63]: https://datatracker.ietf.org/doc/html/rfc7239#section-6.3
 #[derive(Debug, Clone, Default)]
 pub struct ConnectionInfo {
-    scheme: String,
     host: String,
-    realip_remote_addr: Option<String>,
+    scheme: String,
     remote_addr: Option<String>,
+    realip_remote_addr: Option<String>,
 }
 
 impl ConnectionInfo {
@@ -135,7 +135,7 @@ impl ConnectionInfo {
             .or_else(|| first_header_value(req, &*X_FORWARDED_HOST))
             .or_else(|| req.headers.get(&header::HOST)?.to_str().ok())
             .or_else(|| req.uri.authority().map(Authority::as_str))
-            .unwrap_or(cfg.host())
+            .unwrap_or_else(|| cfg.host())
             .to_owned();
 
         let realip_remote_addr = realip_remote_addr
@@ -145,9 +145,9 @@ impl ConnectionInfo {
         let remote_addr = req.peer_addr.map(|addr| addr.to_string());
 
         ConnectionInfo {
-            remote_addr,
-            scheme,
             host,
+            scheme,
+            remote_addr,
             realip_remote_addr,
         }
     }

src/lib.rs

@@ -53,7 +53,7 @@
 //! * SSL support using OpenSSL or Rustls
 //! * Middlewares ([Logger, Session, CORS, etc](https://actix.rs/docs/middleware/))
 //! * Includes an async [HTTP client](https://docs.rs/awc/)
-//! * Runs on stable Rust 1.46+
+//! * Runs on stable Rust 1.51+
 //!
 //! # Crate Features
 //! * `cookies` - cookies support (enabled by default)
@@ -73,6 +73,7 @@ mod app;
 mod app_service;
 mod config;
 mod data;
+pub mod dev;
 pub mod error;
 mod extract;
 pub mod guard;
@@ -95,7 +96,6 @@ pub mod test;
 pub(crate) mod types;
 pub mod web;
 
-pub use actix_http::Response as BaseHttpResponse;
 pub use actix_http::{body, HttpMessage};
 #[doc(inline)]
 pub use actix_rt as rt;
@@ -115,109 +115,3 @@ pub use crate::scope::Scope;
 pub use crate::server::HttpServer;
 // TODO: is exposing the error directly really needed
 pub use crate::types::{Either, EitherExtractError};
-
-pub mod dev {
-    //! The `actix-web` prelude for library developers
-    //!
-    //! The purpose of this module is to alleviate imports of many common actix
-    //! traits by adding a glob import to the top of actix heavy modules:
-    //!
-    //! ```
-    //! # #![allow(unused_imports)]
-    //! use actix_web::dev::*;
-    //! ```
-
-    pub use crate::config::{AppConfig, AppService};
-    #[doc(hidden)]
-    pub use crate::handler::Handler;
-    pub use crate::info::{ConnectionInfo, PeerAddr};
-    pub use crate::rmap::ResourceMap;
-    pub use crate::service::{HttpServiceFactory, ServiceRequest, ServiceResponse, WebService};
-
-    pub use crate::types::form::UrlEncoded;
-    pub use crate::types::json::JsonBody;
-    pub use crate::types::readlines::Readlines;
-
-    pub use actix_http::body::{
-        AnyBody, Body, BodySize, MessageBody, ResponseBody, SizedStream,
-    };
-
-    #[cfg(feature = "__compress")]
-    pub use actix_http::encoding::Decoder as Decompress;
-    pub use actix_http::ResponseBuilder as BaseHttpResponseBuilder;
-    pub use actix_http::{Extensions, Payload, PayloadStream, RequestHead, ResponseHead};
-    pub use actix_router::{Path, ResourceDef, ResourcePath, Url};
-    pub use actix_server::Server;
-    pub use actix_service::{
-        always_ready, fn_factory, fn_service, forward_ready, Service, Transform,
-    };
-
-    pub(crate) fn insert_slash(mut patterns: Vec<String>) -> Vec<String> {
-        for path in &mut patterns {
-            if !path.is_empty() && !path.starts_with('/') {
-                path.insert(0, '/');
-            };
-        }
-        patterns
-    }
-
-    use crate::http::header::ContentEncoding;
-    use actix_http::{Response, ResponseBuilder};
-
-    struct Enc(ContentEncoding);
-
-    /// Helper trait that allows to set specific encoding for response.
-    pub trait BodyEncoding {
-        /// Get content encoding
-        fn get_encoding(&self) -> Option<ContentEncoding>;
-
-        /// Set content encoding
-        ///
-        /// Must be used with [`crate::middleware::Compress`] to take effect.
-        fn encoding(&mut self, encoding: ContentEncoding) -> &mut Self;
-    }
-
-    impl BodyEncoding for ResponseBuilder {
-        fn get_encoding(&self) -> Option<ContentEncoding> {
-            self.extensions().get::<Enc>().map(|enc| enc.0)
-        }
-
-        fn encoding(&mut self, encoding: ContentEncoding) -> &mut Self {
-            self.extensions_mut().insert(Enc(encoding));
-            self
-        }
-    }
-
-    impl<B> BodyEncoding for Response<B> {
-        fn get_encoding(&self) -> Option<ContentEncoding> {
-            self.extensions().get::<Enc>().map(|enc| enc.0)
-        }
-
-        fn encoding(&mut self, encoding: ContentEncoding) -> &mut Self {
-            self.extensions_mut().insert(Enc(encoding));
-            self
-        }
-    }
-
-    impl BodyEncoding for crate::HttpResponseBuilder {
-        fn get_encoding(&self) -> Option<ContentEncoding> {
-            self.extensions().get::<Enc>().map(|enc| enc.0)
-        }
-
-        fn encoding(&mut self, encoding: ContentEncoding) -> &mut Self {
-            self.extensions_mut().insert(Enc(encoding));
-            self
-        }
-    }
-
-    impl<B> BodyEncoding for crate::HttpResponse<B> {
-        fn get_encoding(&self) -> Option<ContentEncoding> {
-            self.extensions().get::<Enc>().map(|enc| enc.0)
-        }
-
-        fn encoding(&mut self, encoding: ContentEncoding) -> &mut Self {
-            self.extensions_mut().insert(Enc(encoding));
-            self
-        }
-    }
-}

src/middleware/compress.rs

@@ -2,10 +2,10 @@
 
 use std::{
     cmp,
+    convert::TryFrom,
     future::Future,
     marker::PhantomData,
     pin::Pin,
-    str::FromStr,
     task::{Context, Poll},
 };
 
@@ -13,16 +13,18 @@ use actix_http::{
     body::{MessageBody, ResponseBody},
     encoding::Encoder,
     http::header::{ContentEncoding, ACCEPT_ENCODING},
+    StatusCode,
 };
 use actix_service::{Service, Transform};
-use actix_utils::future::{ok, Ready};
+use actix_utils::future::{ok, Either, Ready};
 use futures_core::ready;
+use once_cell::sync::Lazy;
 use pin_project::pin_project;
 
 use crate::{
     dev::BodyEncoding,
     service::{ServiceRequest, ServiceResponse},
-    Error,
+    Error, HttpResponse,
 };
 
 /// Middleware for compressing response payloads.
@@ -78,34 +80,78 @@ pub struct CompressMiddleware<S> {
     encoding: ContentEncoding,
 }
 
+static SUPPORTED_ALGORITHM_NAMES: Lazy<String> = Lazy::new(|| {
+    let mut encoding = vec![];
+
+    #[cfg(feature = "compress-brotli")]
+    {
+        encoding.push("br");
+    }
+
+    #[cfg(feature = "compress-gzip")]
+    {
+        encoding.push("gzip");
+        encoding.push("deflate");
+    }
+
+    #[cfg(feature = "compress-zstd")]
+    encoding.push("zstd");
+
+    assert!(
+        !encoding.is_empty(),
+        "encoding can not be empty unless __compress feature has been explicitly enabled by itself"
+    );
+
+    encoding.join(", ")
+});
+
 impl<S, B> Service<ServiceRequest> for CompressMiddleware<S>
 where
-    B: MessageBody,
     S: Service<ServiceRequest, Response = ServiceResponse<B>, Error = Error>,
+    B: MessageBody,
 {
     type Response = ServiceResponse<ResponseBody<Encoder<B>>>;
     type Error = Error;
-    type Future = CompressResponse<S, B>;
+    type Future = Either<CompressResponse<S, B>, Ready<Result<Self::Response, Self::Error>>>;
 
     actix_service::forward_ready!(service);
 
     #[allow(clippy::borrow_interior_mutable_const)]
     fn call(&self, req: ServiceRequest) -> Self::Future {
         // negotiate content-encoding
-        let encoding = if let Some(val) = req.headers().get(&ACCEPT_ENCODING) {
-            if let Ok(enc) = val.to_str() {
-                AcceptEncoding::parse(enc, self.encoding)
-            } else {
-                ContentEncoding::Identity
-            }
-        } else {
-            ContentEncoding::Identity
-        };
+        let encoding_result = req
+            .headers()
+            .get(&ACCEPT_ENCODING)
+            .and_then(|val| val.to_str().ok())
+            .map(|enc| AcceptEncoding::try_parse(enc, self.encoding));
 
-        CompressResponse {
-            encoding,
-            fut: self.service.call(req),
-            _phantom: PhantomData,
+        match encoding_result {
+            // Missing header => fallback to identity
+            None => Either::left(CompressResponse {
+                encoding: ContentEncoding::Identity,
+                fut: self.service.call(req),
+                _phantom: PhantomData,
+            }),
+
+            // Valid encoding
+            Some(Ok(encoding)) => Either::left(CompressResponse {
+                encoding,
+                fut: self.service.call(req),
+                _phantom: PhantomData,
+            }),
+
+            // There is an HTTP header but we cannot match what client as asked for
+            Some(Err(_)) => {
+                let res = HttpResponse::with_body(
+                    StatusCode::NOT_ACCEPTABLE,
+                    SUPPORTED_ALGORITHM_NAMES.as_str(),
+                );
+                let enc = ContentEncoding::Identity;
+
+                Either::right(ok(req.into_response(res.map_body(move |head, body| {
+                    Encoder::response(enc, head, ResponseBody::Other(body.into()))
+                }))))
+            }
         }
     }
 }
@@ -114,7 +160,6 @@ where
 pub struct CompressResponse<S, B>
 where
     S: Service<ServiceRequest>,
-    B: MessageBody,
 {
     #[pin]
     fut: S::Future,
@@ -151,6 +196,7 @@ where
 
 struct AcceptEncoding {
     encoding: ContentEncoding,
+    // TODO: use Quality or QualityItem<ContentEncoding>
     quality: f64,
 }
 
@@ -177,26 +223,56 @@ impl PartialOrd for AcceptEncoding {
 
 impl PartialEq for AcceptEncoding {
     fn eq(&self, other: &AcceptEncoding) -> bool {
-        self.quality == other.quality
+        self.encoding == other.encoding && self.quality == other.quality
     }
 }
 
+/// Parse q-factor from quality strings.
+///
+/// If parse fail, then fallback to default value which is 1.
+/// More details available here: <https://developer.mozilla.org/en-US/docs/Glossary/Quality_values>
+fn parse_quality(parts: &[&str]) -> f64 {
+    for part in parts {
+        if part.trim().starts_with("q=") {
+            return part[2..].parse().unwrap_or(1.0);
+        }
+    }
+
+    1.0
+}
+
+#[derive(Debug, PartialEq, Eq)]
+enum AcceptEncodingError {
+    /// This error occurs when client only support compressed response and server do not have any
+    /// algorithm that match client accepted algorithms.
+    CompressionAlgorithmMismatch,
+}
+
 impl AcceptEncoding {
     fn new(tag: &str) -> Option<AcceptEncoding> {
         let parts: Vec<&str> = tag.split(';').collect();
         let encoding = match parts.len() {
             0 => return None,
-            _ => ContentEncoding::from(parts[0]),
-        };
-        let quality = match parts.len() {
-            1 => encoding.quality(),
-            _ => f64::from_str(parts[1]).unwrap_or(0.0),
+            _ => match ContentEncoding::try_from(parts[0]) {
+                Err(_) => return None,
+                Ok(x) => x,
+            },
         };
+
+        let quality = parse_quality(&parts[1..]);
+        if quality <= 0.0 || quality > 1.0 {
+            return None;
+        }
+
         Some(AcceptEncoding { encoding, quality })
     }
 
-    /// Parse a raw Accept-Encoding header value into an ordered list.
-    pub fn parse(raw: &str, encoding: ContentEncoding) -> ContentEncoding {
+    /// Parse a raw Accept-Encoding header value into an ordered list then return the best match
+    /// based on middleware configuration.
+    pub fn try_parse(
+        raw: &str,
+        encoding: ContentEncoding,
+    ) -> Result<ContentEncoding, AcceptEncodingError> {
         let mut encodings = raw
             .replace(' ', "")
             .split(',')
@@ -206,13 +282,90 @@ impl AcceptEncoding {
         encodings.sort();
 
         for enc in encodings {
-            if encoding == ContentEncoding::Auto {
-                return enc.encoding;
-            } else if encoding == enc.encoding {
-                return encoding;
+            if encoding == ContentEncoding::Auto || encoding == enc.encoding {
+                return Ok(enc.encoding);
             }
         }
 
-        ContentEncoding::Identity
+        // Special case if user cannot accept uncompressed data.
+        // See: https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Accept-Encoding
+        // TODO: account for whitespace
+        if raw.contains("*;q=0") || raw.contains("identity;q=0") {
+            return Err(AcceptEncodingError::CompressionAlgorithmMismatch);
+        }
+
+        Ok(ContentEncoding::Identity)
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    macro_rules! assert_parse_eq {
+        ($raw:expr, $result:expr) => {
+            assert_eq!(
+                AcceptEncoding::try_parse($raw, ContentEncoding::Auto),
+                Ok($result)
+            );
+        };
+    }
+
+    macro_rules! assert_parse_fail {
+        ($raw:expr) => {
+            assert!(AcceptEncoding::try_parse($raw, ContentEncoding::Auto).is_err());
+        };
+    }
+
+    #[test]
+    fn test_parse_encoding() {
+        // Test simple case
+        assert_parse_eq!("br", ContentEncoding::Br);
+        assert_parse_eq!("gzip", ContentEncoding::Gzip);
+        assert_parse_eq!("deflate", ContentEncoding::Deflate);
+        assert_parse_eq!("zstd", ContentEncoding::Zstd);
+
+        // Test space, trim, missing values
+        assert_parse_eq!("br,,,,", ContentEncoding::Br);
+        assert_parse_eq!("gzip  ,   br,   zstd", ContentEncoding::Gzip);
+
+        // Test float number parsing
+        assert_parse_eq!("br;q=1  ,", ContentEncoding::Br);
+        assert_parse_eq!("br;q=1.0  ,   br", ContentEncoding::Br);
+
+        // Test wildcard
+        assert_parse_eq!("*", ContentEncoding::Identity);
+        assert_parse_eq!("*;q=1.0", ContentEncoding::Identity);
+    }
+
+    #[test]
+    fn test_parse_encoding_qfactor_ordering() {
+        assert_parse_eq!("gzip, br, zstd", ContentEncoding::Gzip);
+        assert_parse_eq!("zstd, br, gzip", ContentEncoding::Zstd);
+
+        assert_parse_eq!("gzip;q=0.4, br;q=0.6", ContentEncoding::Br);
+        assert_parse_eq!("gzip;q=0.8, br;q=0.4", ContentEncoding::Gzip);
+    }
+
+    #[test]
+    fn test_parse_encoding_qfactor_invalid() {
+        // Out of range
+        assert_parse_eq!("gzip;q=-5.0", ContentEncoding::Identity);
+        assert_parse_eq!("gzip;q=5.0", ContentEncoding::Identity);
+
+        // Disabled
+        assert_parse_eq!("gzip;q=0", ContentEncoding::Identity);
+    }
+
+    #[test]
+    fn test_parse_compression_required() {
+        // Check we fallback to identity if there is an unsupported compression algorithm
+        assert_parse_eq!("compress", ContentEncoding::Identity);
+
+        // User do not want any compression
+        assert_parse_fail!("compress, identity;q=0");
+        assert_parse_fail!("compress, identity;q=0.0");
+        assert_parse_fail!("compress, *;q=0");
+        assert_parse_fail!("compress, *;q=0.0");
     }
 }

src/middleware/logger.rs

@@ -341,7 +341,6 @@ where
     ) -> Poll<Option<Result<Bytes, Self::Error>>> {
         let this = self.project();
 
-        // TODO: MSRV 1.51: poll_map_err
         match ready!(this.body.poll_next(cx)) {
             Some(Ok(chunk)) => {
                 *this.size += chunk.len();
@@ -553,7 +552,7 @@ impl FormatText {
                 *self = FormatText::Str(s.to_string());
             }
             FormatText::RemoteAddr => {
-                let s = if let Some(ref peer) = req.connection_info().remote_addr() {
+                let s = if let Some(peer) = req.connection_info().remote_addr() {
                     FormatText::Str((*peer).to_string())
                 } else {
                     FormatText::Str("-".to_string())

src/middleware/mod.rs

@@ -19,3 +19,43 @@ mod compress;
 
 #[cfg(feature = "__compress")]
 pub use self::compress::Compress;
+
+#[cfg(test)]
+mod tests {
+    use crate::{http::StatusCode, App};
+
+    use super::*;
+
+    #[test]
+    fn common_combinations() {
+        // ensure there's no reason that the built-in middleware cannot compose
+
+        let _ = App::new()
+            .wrap(Compat::new(Logger::default()))
+            .wrap(Condition::new(true, DefaultHeaders::new()))
+            .wrap(DefaultHeaders::new().header("X-Test2", "X-Value2"))
+            .wrap(ErrorHandlers::new().handler(StatusCode::FORBIDDEN, |res| {
+                Ok(ErrorHandlerResponse::Response(res))
+            }))
+            .wrap(Logger::default())
+            .wrap(NormalizePath::new(TrailingSlash::Trim));
+
+        let _ = App::new()
+            .wrap(NormalizePath::new(TrailingSlash::Trim))
+            .wrap(Logger::default())
+            .wrap(ErrorHandlers::new().handler(StatusCode::FORBIDDEN, |res| {
+                Ok(ErrorHandlerResponse::Response(res))
+            }))
+            .wrap(DefaultHeaders::new().header("X-Test2", "X-Value2"))
+            .wrap(Condition::new(true, DefaultHeaders::new()))
+            .wrap(Compat::new(Logger::default()));
+
+        #[cfg(feature = "__compress")]
+        {
+            let _ = App::new().wrap(Compress::default()).wrap(Logger::default());
+            let _ = App::new().wrap(Logger::default()).wrap(Compress::default());
+            let _ = App::new().wrap(Compat::new(Compress::default()));
+            let _ = App::new().wrap(Condition::new(true, Compat::new(Compress::default())));
+        }
+    }
+}

src/middleware/normalize.rs

@@ -59,7 +59,7 @@ impl Default for TrailingSlash {
 ///
 /// # actix_web::rt::System::new().block_on(async {
 /// let app = App::new()
-///     .wrap(middleware::NormalizePath::default())
+///     .wrap(middleware::NormalizePath::trim())
 ///     .route("/test", web::get().to(|| async { "test" }))
 ///     .route("/unmatchable/", web::get().to(|| async { "unmatchable" }));
 ///
@@ -85,13 +85,31 @@ impl Default for TrailingSlash {
 /// assert_eq!(res.status(), StatusCode::NOT_FOUND);
 /// # })
 /// ```
-#[derive(Debug, Clone, Copy, Default)]
+#[derive(Debug, Clone, Copy)]
 pub struct NormalizePath(TrailingSlash);
 
+impl Default for NormalizePath {
+    fn default() -> Self {
+        log::warn!(
+            "`NormalizePath::default()` is deprecated. The default trailing slash behavior changed \
+            in v4 from `Always` to `Trim`. Update your call to `NormalizePath::new(...)`."
+        );
+
+        Self(TrailingSlash::Trim)
+    }
+}
+
 impl NormalizePath {
     /// Create new `NormalizePath` middleware with the specified trailing slash style.
     pub fn new(trailing_slash_style: TrailingSlash) -> Self {
-        NormalizePath(trailing_slash_style)
+        Self(trailing_slash_style)
+    }
+
+    /// Constructs a new `NormalizePath` middleware with [trim](TrailingSlash::Trim) semantics.
+    ///
+    /// Use this instead of `NormalizePath::default()` to avoid deprecation warning.
+    pub fn trim() -> Self {
+        Self::new(TrailingSlash::Trim)
     }
 }
 

src/request.rs

@@ -23,10 +23,10 @@ use crate::{
 #[cfg(feature = "cookies")]
 struct Cookies(Vec<Cookie<'static>>);
 
+/// An incoming request.
 #[derive(Clone)]
-/// An HTTP Request
 pub struct HttpRequest {
-    /// # Panics
+    /// # Invariant
     /// `Rc<HttpRequestInner>` is used exclusively and NO `Weak<HttpRequestInner>`
     /// is allowed anywhere in the code. Weak pointer is purposely ignored when
     /// doing `Rc`'s ref counter check. Expect panics if this invariant is violated.
@@ -184,7 +184,7 @@ impl HttpRequest {
         U: IntoIterator<Item = I>,
         I: AsRef<str>,
     {
-        self.resource_map().url_for(&self, name, elements)
+        self.resource_map().url_for(self, name, elements)
     }
 
     /// Generate url for named resource
@@ -199,7 +199,7 @@ impl HttpRequest {
     #[inline]
     /// Get a reference to a `ResourceMap` of current application.
     pub fn resource_map(&self) -> &ResourceMap {
-        &self.app_state().rmap()
+        self.app_state().rmap()
     }
 
     /// Peer socket address.
@@ -509,9 +509,9 @@ mod tests {
     #[test]
     fn test_url_for() {
         let mut res = ResourceDef::new("/user/{name}.{ext}");
-        *res.name_mut() = "index".to_string();
+        res.set_name("index");
 
-        let mut rmap = ResourceMap::new(ResourceDef::new(""));
+        let mut rmap = ResourceMap::new(ResourceDef::prefix(""));
         rmap.add(&mut res, None);
         assert!(rmap.has_resource("/user/test.html"));
         assert!(!rmap.has_resource("/test/unknown"));
@@ -539,9 +539,9 @@ mod tests {
     #[test]
     fn test_url_for_static() {
         let mut rdef = ResourceDef::new("/index.html");
-        *rdef.name_mut() = "index".to_string();
+        rdef.set_name("index");
 
-        let mut rmap = ResourceMap::new(ResourceDef::new(""));
+        let mut rmap = ResourceMap::new(ResourceDef::prefix(""));
         rmap.add(&mut rdef, None);
 
         assert!(rmap.has_resource("/index.html"));
@@ -560,9 +560,9 @@ mod tests {
     #[test]
     fn test_match_name() {
         let mut rdef = ResourceDef::new("/index.html");
-        *rdef.name_mut() = "index".to_string();
+        rdef.set_name("index");
 
-        let mut rmap = ResourceMap::new(ResourceDef::new(""));
+        let mut rmap = ResourceMap::new(ResourceDef::prefix(""));
         rmap.add(&mut rdef, None);
 
         assert!(rmap.has_resource("/index.html"));
@@ -579,11 +579,10 @@ mod tests {
     fn test_url_for_external() {
         let mut rdef = ResourceDef::new("https://youtube.com/watch/{video_id}");
 
-        *rdef.name_mut() = "youtube".to_string();
+        rdef.set_name("youtube");
 
-        let mut rmap = ResourceMap::new(ResourceDef::new(""));
+        let mut rmap = ResourceMap::new(ResourceDef::prefix(""));
         rmap.add(&mut rdef, None);
-        assert!(rmap.has_resource("https://youtube.com/watch/unknown"));
 
         let req = TestRequest::default().rmap(rmap).to_http_request();
         let url = req.url_for("youtube", &["oHg5SJYRHA0"]);

src/resource.rs

@@ -4,7 +4,7 @@ use std::future::Future;
 use std::rc::Rc;
 
 use actix_http::Extensions;
-use actix_router::IntoPattern;
+use actix_router::{IntoPatterns, Patterns};
 use actix_service::boxed::{self, BoxService, BoxServiceFactory};
 use actix_service::{
     apply, apply_fn_factory, fn_service, IntoServiceFactory, Service, ServiceFactory,
@@ -15,7 +15,7 @@ use futures_util::future::join_all;
 
 use crate::{
     data::Data,
-    dev::{insert_slash, AppService, HttpServiceFactory, ResourceDef},
+    dev::{ensure_leading_slash, AppService, HttpServiceFactory, ResourceDef},
     guard::Guard,
     handler::Handler,
     responder::Responder,
@@ -51,7 +51,7 @@ type HttpNewService = BoxServiceFactory<(), ServiceRequest, ServiceResponse, Err
 /// Default behavior could be overridden with `default_resource()` method.
 pub struct Resource<T = ResourceEndpoint> {
     endpoint: T,
-    rdef: Vec<String>,
+    rdef: Patterns,
     name: Option<String>,
     routes: Vec<Route>,
     app_data: Option<Extensions>,
@@ -61,7 +61,7 @@ pub struct Resource<T = ResourceEndpoint> {
 }
 
 impl Resource {
-    pub fn new<T: IntoPattern>(path: T) -> Resource {
+    pub fn new<T: IntoPatterns>(path: T) -> Resource {
         let fref = Rc::new(RefCell::new(None));
 
         Resource {
@@ -391,13 +391,13 @@ where
         };
 
         let mut rdef = if config.is_root() || !self.rdef.is_empty() {
-            ResourceDef::new(insert_slash(self.rdef.clone()))
+            ResourceDef::new(ensure_leading_slash(self.rdef.clone()))
         } else {
             ResourceDef::new(self.rdef.clone())
         };
 
         if let Some(ref name) = self.name {
-            *rdef.name_mut() = name.clone();
+            rdef.set_name(name);
         }
 
         *self.factory_ref.borrow_mut() = Some(ResourceFactory {

src/responder.rs

@@ -270,7 +270,7 @@ pub(crate) mod tests {
     impl BodyTest for Body {
         fn bin_ref(&self) -> &[u8] {
             match self {
-                Body::Bytes(ref bin) => &bin,
+                Body::Bytes(ref bin) => bin,
                 _ => unreachable!("bug in test impl"),
             }
         }
@@ -283,11 +283,11 @@ pub(crate) mod tests {
         fn bin_ref(&self) -> &[u8] {
             match self {
                 ResponseBody::Body(ref b) => match b {
-                    Body::Bytes(ref bin) => &bin,
+                    Body::Bytes(ref bin) => bin,
                     _ => unreachable!("bug in test impl"),
                 },
                 ResponseBody::Other(ref b) => match b {
-                    Body::Bytes(ref bin) => &bin,
+                    Body::Bytes(ref bin) => bin,
                     _ => unreachable!("bug in test impl"),
                 },
             }

src/response/response.rs

@@ -24,20 +24,14 @@ use {
 
 use crate::{error::Error, HttpResponseBuilder};
 
-/// An HTTP Response
+/// An outgoing response.
 pub struct HttpResponse<B = AnyBody> {
     res: Response<B>,
     pub(crate) error: Option<Error>,
 }
 
 impl HttpResponse<AnyBody> {
-    /// Create HTTP response builder with specific status.
-    #[inline]
-    pub fn build(status: StatusCode) -> HttpResponseBuilder {
-        HttpResponseBuilder::new(status)
-    }
-
-    /// Create a response.
+    /// Constructs a response.
     #[inline]
     pub fn new(status: StatusCode) -> Self {
         Self {
@@ -46,6 +40,12 @@ impl HttpResponse<AnyBody> {
         }
     }
 
+    /// Constructs a response builder with specific HTTP status.
+    #[inline]
+    pub fn build(status: StatusCode) -> HttpResponseBuilder {
+        HttpResponseBuilder::new(status)
+    }
+
     /// Create an error response.
     #[inline]
     pub fn from_error(error: impl Into<Error>) -> Self {

src/rmap.rs

@@ -10,44 +10,75 @@ use crate::request::HttpRequest;
 
 #[derive(Clone, Debug)]
 pub struct ResourceMap {
-    root: ResourceDef,
+    pattern: ResourceDef,
+
+    /// Named resources within the tree or, for external resources,
+    /// it points to isolated nodes outside the tree.
+    named: AHashMap<String, Rc<ResourceMap>>,
+
     parent: RefCell<Weak<ResourceMap>>,
-    named: AHashMap<String, ResourceDef>,
-    patterns: Vec<(ResourceDef, Option<Rc<ResourceMap>>)>,
+
+    /// Must be `None` for "edge" nodes.
+    nodes: Option<Vec<Rc<ResourceMap>>>,
 }
 
 impl ResourceMap {
+    /// Creates a _container_ node in the `ResourceMap` tree.
     pub fn new(root: ResourceDef) -> Self {
         ResourceMap {
-            root,
-            parent: RefCell::new(Weak::new()),
+            pattern: root,
             named: AHashMap::default(),
-            patterns: Vec::new(),
+            parent: RefCell::new(Weak::new()),
+            nodes: Some(Vec::new()),
         }
     }
 
+    /// Adds a (possibly nested) resource.
+    ///
+    /// To add a non-prefix pattern, `nested` must be `None`.
+    /// To add external resource, supply a pattern without a leading `/`.
+    /// The root pattern of `nested`, if present, should match `pattern`.
     pub fn add(&mut self, pattern: &mut ResourceDef, nested: Option<Rc<ResourceMap>>) {
-        pattern.set_id(self.patterns.len() as u16);
-        self.patterns.push((pattern.clone(), nested));
-        if !pattern.name().is_empty() {
-            self.named
-                .insert(pattern.name().to_string(), pattern.clone());
+        pattern.set_id(self.nodes.as_ref().unwrap().len() as u16);
+
+        if let Some(new_node) = nested {
+            assert_eq!(&new_node.pattern, pattern, "`patern` and `nested` mismatch");
+            self.named.extend(new_node.named.clone().into_iter());
+            self.nodes.as_mut().unwrap().push(new_node);
+        } else {
+            let new_node = Rc::new(ResourceMap {
+                pattern: pattern.clone(),
+                named: AHashMap::default(),
+                parent: RefCell::new(Weak::new()),
+                nodes: None,
+            });
+
+            if let Some(name) = pattern.name() {
+                self.named.insert(name.to_owned(), Rc::clone(&new_node));
+            }
+
+            let is_external = match pattern.pattern() {
+                Some(p) => !p.is_empty() && !p.starts_with('/'),
+                None => false,
+            };
+
+            // Don't add external resources to the tree
+            if !is_external {
+                self.nodes.as_mut().unwrap().push(new_node);
+            }
         }
     }
 
-    pub(crate) fn finish(&self, current: Rc<ResourceMap>) {
-        for (_, nested) in &self.patterns {
-            if let Some(ref nested) = nested {
-                *nested.parent.borrow_mut() = Rc::downgrade(&current);
-                nested.finish(nested.clone());
-            }
+    pub(crate) fn finish(self: &Rc<Self>) {
+        for node in self.nodes.iter().flatten() {
+            node.parent.replace(Rc::downgrade(self));
+            ResourceMap::finish(node);
         }
     }
 
     /// Generate url for named resource
     ///
-    /// Check [`HttpRequest::url_for()`](../struct.HttpRequest.html#method.
-    /// url_for) for detailed information.
+    /// Check [`HttpRequest::url_for`] for detailed information.
     pub fn url_for<U, I>(
         &self,
         req: &HttpRequest,
@@ -58,192 +89,97 @@ impl ResourceMap {
         U: IntoIterator<Item = I>,
         I: AsRef<str>,
     {
-        let mut path = String::new();
         let mut elements = elements.into_iter();
 
-        if self.patterns_for(name, &mut path, &mut elements)?.is_some() {
-            if path.starts_with('/') {
-                let conn = req.connection_info();
-                Ok(Url::parse(&format!(
-                    "{}://{}{}",
-                    conn.scheme(),
-                    conn.host(),
-                    path
-                ))?)
-            } else {
-                Ok(Url::parse(&path)?)
-            }
+        let path = self
+            .named
+            .get(name)
+            .ok_or(UrlGenerationError::ResourceNotFound)?
+            .root_rmap_fn(String::with_capacity(24), |mut acc, node| {
+                node.pattern
+                    .resource_path_from_iter(&mut acc, &mut elements)
+                    .then(|| acc)
+            })
+            .ok_or(UrlGenerationError::NotEnoughElements)?;
+
+        if path.starts_with('/') {
+            let conn = req.connection_info();
+            Ok(Url::parse(&format!(
+                "{}://{}{}",
+                conn.scheme(),
+                conn.host(),
+                path
+            ))?)
         } else {
-            Err(UrlGenerationError::ResourceNotFound)
+            Ok(Url::parse(&path)?)
         }
     }
 
     pub fn has_resource(&self, path: &str) -> bool {
-        let path = if path.is_empty() { "/" } else { path };
-
-        for (pattern, rmap) in &self.patterns {
-            if let Some(ref rmap) = rmap {
-                if let Some(plen) = pattern.is_prefix_match(path) {
-                    return rmap.has_resource(&path[plen..]);
-                }
-            } else if pattern.is_match(path) || pattern.pattern() == "" && path == "/" {
-                return true;
-            }
-        }
-        false
+        self.find_matching_node(path).is_some()
     }
 
     /// Returns the name of the route that matches the given path or None if no full match
-    /// is possible.
+    /// is possible or the matching resource is not named.
     pub fn match_name(&self, path: &str) -> Option<&str> {
-        let path = if path.is_empty() { "/" } else { path };
-
-        for (pattern, rmap) in &self.patterns {
-            if let Some(ref rmap) = rmap {
-                if let Some(plen) = pattern.is_prefix_match(path) {
-                    return rmap.match_name(&path[plen..]);
-                }
-            } else if pattern.is_match(path) {
-                return match pattern.name() {
-                    "" => None,
-                    s => Some(s),
-                };
-            }
-        }
-
-        None
+        self.find_matching_node(path)?.pattern.name()
     }
 
     /// Returns the full resource pattern matched against a path or None if no full match
     /// is possible.
     pub fn match_pattern(&self, path: &str) -> Option<String> {
-        let path = if path.is_empty() { "/" } else { path };
-
-        // ensure a full match exists
-        if !self.has_resource(path) {
-            return None;
-        }
-
-        Some(self.traverse_resource_pattern(path))
+        self.find_matching_node(path)?.root_rmap_fn(
+            String::with_capacity(24),
+            |mut acc, node| {
+                acc.push_str(node.pattern.pattern()?);
+                Some(acc)
+            },
+        )
     }
 
-    /// Takes remaining path and tries to match it up against a resource definition within the
-    /// current resource map recursively, returning a concatenation of all resource prefixes and
-    /// patterns matched in the tree.
-    ///
-    /// Should only be used after checking the resource exists in the map so that partial match
-    /// patterns are not returned.
-    fn traverse_resource_pattern(&self, remaining: &str) -> String {
-        for (pattern, rmap) in &self.patterns {
-            if let Some(ref rmap) = rmap {
-                if let Some(prefix_len) = pattern.is_prefix_match(remaining) {
-                    let prefix = pattern.pattern().to_owned();
-
-                    return [
-                        prefix,
-                        rmap.traverse_resource_pattern(&remaining[prefix_len..]),
-                    ]
-                    .concat();
-                }
-            } else if pattern.is_match(remaining) {
-                return pattern.pattern().to_owned();
-            }
-        }
-
-        String::new()
+    fn find_matching_node(&self, path: &str) -> Option<&ResourceMap> {
+        self._find_matching_node(path).flatten()
     }
 
-    fn patterns_for<U, I>(
-        &self,
-        name: &str,
-        path: &mut String,
-        elements: &mut U,
-    ) -> Result<Option<()>, UrlGenerationError>
+    /// Returns `None` if root pattern doesn't match;
+    /// `Some(None)` if root pattern matches but there is no matching child pattern.
+    /// Don't search sideways when `Some(none)` is returned.
+    fn _find_matching_node(&self, path: &str) -> Option<Option<&ResourceMap>> {
+        let matched_len = self.pattern.find_match(path)?;
+        let path = &path[matched_len..];
+
+        Some(match &self.nodes {
+            // find first sub-node to match remaining path
+            Some(nodes) => nodes
+                .iter()
+                .filter_map(|node| node._find_matching_node(path))
+                .next()
+                .flatten(),
+
+            // only terminate at edge nodes
+            None => Some(self),
+        })
+    }
+
+    /// Find `self`'s highest ancestor and then run `F`, providing `B`, in that rmap context.
+    fn root_rmap_fn<F, B>(&self, init: B, mut f: F) -> Option<B>
     where
-        U: Iterator<Item = I>,
-        I: AsRef<str>,
+        F: FnMut(B, &ResourceMap) -> Option<B>,
     {
-        if self.pattern_for(name, path, elements)?.is_some() {
-            Ok(Some(()))
-        } else {
-            self.parent_pattern_for(name, path, elements)
-        }
+        self._root_rmap_fn(init, &mut f)
     }
 
-    fn pattern_for<U, I>(
-        &self,
-        name: &str,
-        path: &mut String,
-        elements: &mut U,
-    ) -> Result<Option<()>, UrlGenerationError>
+    /// Run `F`, providing `B`, if `self` is top-level resource map, else recurse to parent map.
+    fn _root_rmap_fn<F, B>(&self, init: B, f: &mut F) -> Option<B>
     where
-        U: Iterator<Item = I>,
-        I: AsRef<str>,
+        F: FnMut(B, &ResourceMap) -> Option<B>,
     {
-        if let Some(pattern) = self.named.get(name) {
-            if pattern.pattern().starts_with('/') {
-                self.fill_root(path, elements)?;
-            }
-            if pattern.resource_path(path, elements) {
-                Ok(Some(()))
-            } else {
-                Err(UrlGenerationError::NotEnoughElements)
-            }
-        } else {
-            for (_, rmap) in &self.patterns {
-                if let Some(ref rmap) = rmap {
-                    if rmap.pattern_for(name, path, elements)?.is_some() {
-                        return Ok(Some(()));
-                    }
-                }
-            }
-            Ok(None)
-        }
-    }
+        let data = match self.parent.borrow().upgrade() {
+            Some(ref parent) => parent._root_rmap_fn(init, f)?,
+            None => init,
+        };
 
-    fn fill_root<U, I>(
-        &self,
-        path: &mut String,
-        elements: &mut U,
-    ) -> Result<(), UrlGenerationError>
-    where
-        U: Iterator<Item = I>,
-        I: AsRef<str>,
-    {
-        if let Some(ref parent) = self.parent.borrow().upgrade() {
-            parent.fill_root(path, elements)?;
-        }
-        if self.root.resource_path(path, elements) {
-            Ok(())
-        } else {
-            Err(UrlGenerationError::NotEnoughElements)
-        }
-    }
-
-    fn parent_pattern_for<U, I>(
-        &self,
-        name: &str,
-        path: &mut String,
-        elements: &mut U,
-    ) -> Result<Option<()>, UrlGenerationError>
-    where
-        U: Iterator<Item = I>,
-        I: AsRef<str>,
-    {
-        if let Some(ref parent) = self.parent.borrow().upgrade() {
-            if let Some(pattern) = parent.named.get(name) {
-                self.fill_root(path, elements)?;
-                if pattern.resource_path(path, elements) {
-                    Ok(Some(()))
-                } else {
-                    Err(UrlGenerationError::NotEnoughElements)
-                }
-            } else {
-                parent.parent_pattern_for(name, path, elements)
-            }
-        } else {
-            Ok(None)
-        }
+        f(data, self)
     }
 }
 
@@ -255,7 +191,7 @@ mod tests {
     fn extract_matched_pattern() {
         let mut root = ResourceMap::new(ResourceDef::root_prefix(""));
 
-        let mut user_map = ResourceMap::new(ResourceDef::root_prefix(""));
+        let mut user_map = ResourceMap::new(ResourceDef::root_prefix("/user/{id}"));
         user_map.add(&mut ResourceDef::new("/"), None);
         user_map.add(&mut ResourceDef::new("/profile"), None);
         user_map.add(&mut ResourceDef::new("/article/{id}"), None);
@@ -271,9 +207,10 @@ mod tests {
             &mut ResourceDef::root_prefix("/user/{id}"),
             Some(Rc::new(user_map)),
         );
+        root.add(&mut ResourceDef::new("/info"), None);
 
         let root = Rc::new(root);
-        root.finish(Rc::clone(&root));
+        ResourceMap::finish(&root);
 
         // sanity check resource map setup
 
@@ -284,7 +221,7 @@ mod tests {
         assert!(root.has_resource("/v2"));
         assert!(!root.has_resource("/v33"));
 
-        assert!(root.has_resource("/user/22"));
+        assert!(!root.has_resource("/user/22"));
         assert!(root.has_resource("/user/22/"));
         assert!(root.has_resource("/user/22/profile"));
 
@@ -329,15 +266,15 @@ mod tests {
         let mut root = ResourceMap::new(ResourceDef::root_prefix(""));
 
         let mut rdef = ResourceDef::new("/info");
-        *rdef.name_mut() = "root_info".to_owned();
+        rdef.set_name("root_info");
         root.add(&mut rdef, None);
 
-        let mut user_map = ResourceMap::new(ResourceDef::root_prefix(""));
+        let mut user_map = ResourceMap::new(ResourceDef::root_prefix("/user/{id}"));
         let mut rdef = ResourceDef::new("/");
         user_map.add(&mut rdef, None);
 
         let mut rdef = ResourceDef::new("/post/{post_id}");
-        *rdef.name_mut() = "user_post".to_owned();
+        rdef.set_name("user_post");
         user_map.add(&mut rdef, None);
 
         root.add(
@@ -346,14 +283,14 @@ mod tests {
         );
 
         let root = Rc::new(root);
-        root.finish(Rc::clone(&root));
+        ResourceMap::finish(&root);
 
         // sanity check resource map setup
 
         assert!(root.has_resource("/info"));
         assert!(!root.has_resource("/bar"));
 
-        assert!(root.has_resource("/user/22"));
+        assert!(!root.has_resource("/user/22"));
         assert!(root.has_resource("/user/22/"));
         assert!(root.has_resource("/user/22/post/55"));
 
@@ -373,7 +310,7 @@ mod tests {
         // ref: https://github.com/actix/actix-web/issues/1582
         let mut root = ResourceMap::new(ResourceDef::root_prefix(""));
 
-        let mut user_map = ResourceMap::new(ResourceDef::root_prefix(""));
+        let mut user_map = ResourceMap::new(ResourceDef::root_prefix("/user/{id}"));
         user_map.add(&mut ResourceDef::new("/"), None);
         user_map.add(&mut ResourceDef::new("/profile"), None);
         user_map.add(&mut ResourceDef::new("/article/{id}"), None);
@@ -389,20 +326,119 @@ mod tests {
         );
 
         let root = Rc::new(root);
-        root.finish(Rc::clone(&root));
+        ResourceMap::finish(&root);
 
         // check root has no parent
         assert!(root.parent.borrow().upgrade().is_none());
         // check child has parent reference
-        assert!(root.patterns[0].1.is_some());
+        assert!(root.nodes.as_ref().unwrap()[0]
+            .parent
+            .borrow()
+            .upgrade()
+            .is_some());
         // check child's parent root id matches root's root id
-        assert_eq!(
-            root.patterns[0].1.as_ref().unwrap().root.id(),
-            root.root.id()
-        );
+        assert!(Rc::ptr_eq(
+            &root.nodes.as_ref().unwrap()[0]
+                .parent
+                .borrow()
+                .upgrade()
+                .unwrap(),
+            &root
+        ));
 
         let output = format!("{:?}", root);
         assert!(output.starts_with("ResourceMap {"));
         assert!(output.ends_with(" }"));
     }
+
+    #[test]
+    fn short_circuit() {
+        let mut root = ResourceMap::new(ResourceDef::prefix(""));
+
+        let mut user_root = ResourceDef::prefix("/user");
+        let mut user_map = ResourceMap::new(user_root.clone());
+        user_map.add(&mut ResourceDef::new("/u1"), None);
+        user_map.add(&mut ResourceDef::new("/u2"), None);
+
+        root.add(&mut ResourceDef::new("/user/u3"), None);
+        root.add(&mut user_root, Some(Rc::new(user_map)));
+        root.add(&mut ResourceDef::new("/user/u4"), None);
+
+        let rmap = Rc::new(root);
+        ResourceMap::finish(&rmap);
+
+        assert!(rmap.has_resource("/user/u1"));
+        assert!(rmap.has_resource("/user/u2"));
+        assert!(rmap.has_resource("/user/u3"));
+        assert!(!rmap.has_resource("/user/u4"));
+    }
+
+    #[test]
+    fn url_for() {
+        let mut root = ResourceMap::new(ResourceDef::prefix(""));
+
+        let mut user_scope_rdef = ResourceDef::prefix("/user");
+        let mut user_scope_map = ResourceMap::new(user_scope_rdef.clone());
+
+        let mut user_rdef = ResourceDef::new("/{user_id}");
+        let mut user_map = ResourceMap::new(user_rdef.clone());
+
+        let mut post_rdef = ResourceDef::new("/post/{sub_id}");
+        post_rdef.set_name("post");
+
+        user_map.add(&mut post_rdef, None);
+        user_scope_map.add(&mut user_rdef, Some(Rc::new(user_map)));
+        root.add(&mut user_scope_rdef, Some(Rc::new(user_scope_map)));
+
+        let rmap = Rc::new(root);
+        ResourceMap::finish(&rmap);
+
+        let mut req = crate::test::TestRequest::default();
+        req.set_server_hostname("localhost:8888");
+        let req = req.to_http_request();
+
+        let url = rmap
+            .url_for(&req, "post", &["u123", "foobar"])
+            .unwrap()
+            .to_string();
+        assert_eq!(url, "http://localhost:8888/user/u123/post/foobar");
+
+        assert!(rmap.url_for(&req, "missing", &["u123"]).is_err());
+    }
+
+    #[test]
+    fn external_resource_with_no_name() {
+        let mut root = ResourceMap::new(ResourceDef::prefix(""));
+
+        let mut rdef = ResourceDef::new("https://duck.com/{query}");
+        root.add(&mut rdef, None);
+
+        let rmap = Rc::new(root);
+        ResourceMap::finish(&rmap);
+
+        assert!(!rmap.has_resource("https://duck.com/abc"));
+    }
+
+    #[test]
+    fn external_resource_with_name() {
+        let mut root = ResourceMap::new(ResourceDef::prefix(""));
+
+        let mut rdef = ResourceDef::new("https://duck.com/{query}");
+        rdef.set_name("duck");
+        root.add(&mut rdef, None);
+
+        let rmap = Rc::new(root);
+        ResourceMap::finish(&rmap);
+
+        assert!(!rmap.has_resource("https://duck.com/abc"));
+
+        let mut req = crate::test::TestRequest::default();
+        req.set_server_hostname("localhost:8888");
+        let req = req.to_http_request();
+
+        assert_eq!(
+            rmap.url_for(&req, "duck", &["abcd"]).unwrap().to_string(),
+            "https://duck.com/abcd"
+        );
+    }
 }

src/scope.rs

@@ -41,9 +41,9 @@ type HttpNewService = BoxServiceFactory<(), ServiceRequest, ServiceResponse, Err
 /// fn main() {
 ///     let app = App::new().service(
 ///         web::scope("/{project_id}/")
-///             .service(web::resource("/path1").to(|| async { HttpResponse::Ok() }))
+///             .service(web::resource("/path1").to(|| async { "OK" }))
 ///             .service(web::resource("/path2").route(web::get().to(|| HttpResponse::Ok())))
-///             .service(web::resource("/path3").route(web::head().to(|| HttpResponse::MethodNotAllowed())))
+///             .service(web::resource("/path3").route(web::head().to(HttpResponse::MethodNotAllowed)))
 ///     );
 /// }
 /// ```
@@ -530,7 +530,7 @@ impl Service<ServiceRequest> for ScopeService {
     actix_service::always_ready!();
 
     fn call(&self, mut req: ServiceRequest) -> Self::Future {
-        let res = self.router.recognize_checked(&mut req, |req, guards| {
+        let res = self.router.recognize_fn(&mut req, |req, guards| {
             if let Some(ref guards) = guards {
                 for f in guards {
                     if !f.check(req.head()) {
@@ -1153,4 +1153,70 @@ mod tests {
             Bytes::from_static(b"http://localhost:8080/a/b/c/12345")
         );
     }
+
+    #[actix_rt::test]
+    async fn dynamic_scopes() {
+        let srv = init_service(
+            App::new().service(
+                web::scope("/{a}/").service(
+                    web::scope("/{b}/")
+                        .route("", web::get().to(|_: HttpRequest| HttpResponse::Created()))
+                        .route(
+                            "/",
+                            web::get().to(|_: HttpRequest| HttpResponse::Accepted()),
+                        )
+                        .route("/{c}", web::get().to(|_: HttpRequest| HttpResponse::Ok())),
+                ),
+            ),
+        )
+        .await;
+
+        // note the unintuitive behavior with trailing slashes on scopes with dynamic segments
+        let req = TestRequest::with_uri("/a//b//c").to_request();
+        let resp = call_service(&srv, req).await;
+        assert_eq!(resp.status(), StatusCode::OK);
+
+        let req = TestRequest::with_uri("/a//b/").to_request();
+        let resp = call_service(&srv, req).await;
+        assert_eq!(resp.status(), StatusCode::CREATED);
+
+        let req = TestRequest::with_uri("/a//b//").to_request();
+        let resp = call_service(&srv, req).await;
+        assert_eq!(resp.status(), StatusCode::ACCEPTED);
+
+        let req = TestRequest::with_uri("/a//b//c/d").to_request();
+        let resp = call_service(&srv, req).await;
+        assert_eq!(resp.status(), StatusCode::NOT_FOUND);
+
+        let srv = init_service(
+            App::new().service(
+                web::scope("/{a}").service(
+                    web::scope("/{b}")
+                        .route("", web::get().to(|_: HttpRequest| HttpResponse::Created()))
+                        .route(
+                            "/",
+                            web::get().to(|_: HttpRequest| HttpResponse::Accepted()),
+                        )
+                        .route("/{c}", web::get().to(|_: HttpRequest| HttpResponse::Ok())),
+                ),
+            ),
+        )
+        .await;
+
+        let req = TestRequest::with_uri("/a/b/c").to_request();
+        let resp = call_service(&srv, req).await;
+        assert_eq!(resp.status(), StatusCode::OK);
+
+        let req = TestRequest::with_uri("/a/b").to_request();
+        let resp = call_service(&srv, req).await;
+        assert_eq!(resp.status(), StatusCode::CREATED);
+
+        let req = TestRequest::with_uri("/a/b/").to_request();
+        let resp = call_service(&srv, req).await;
+        assert_eq!(resp.status(), StatusCode::ACCEPTED);
+
+        let req = TestRequest::with_uri("/a/b/c/d").to_request();
+        let resp = call_service(&srv, req).await;
+        assert_eq!(resp.status(), StatusCode::NOT_FOUND);
+    }
 }

src/server.rs

@@ -295,6 +295,7 @@ where
                     let mut svc = HttpService::build()
                         .keep_alive(c.keep_alive)
                         .client_timeout(c.client_timeout)
+                        .client_disconnect(c.client_shutdown)
                         .local_addr(addr);
 
                     if let Some(handler) = on_connect_fn.clone() {
@@ -352,7 +353,8 @@ where
                     let svc = HttpService::build()
                         .keep_alive(c.keep_alive)
                         .client_timeout(c.client_timeout)
-                        .client_disconnect(c.client_shutdown);
+                        .client_disconnect(c.client_shutdown)
+                        .local_addr(addr);
 
                     let svc = if let Some(handler) = on_connect_fn.clone() {
                         svc.on_connect_ext(move |io: &_, ext: _| {
@@ -523,10 +525,11 @@ where
             addr: socket_addr,
         });
 
-        let addr = format!("actix-web-service-{:?}", lst.local_addr()?);
+        let addr = lst.local_addr()?;
+        let name = format!("actix-web-service-{:?}", addr);
         let on_connect_fn = self.on_connect_fn.clone();
 
-        self.builder = self.builder.listen_uds(addr, lst, move || {
+        self.builder = self.builder.listen_uds(name, lst, move || {
             let c = cfg.lock().unwrap();
             let config = AppConfig::new(
                 false,
@@ -537,7 +540,8 @@ where
             fn_service(|io: UnixStream| async { Ok((io, Protocol::Http1, None)) }).and_then({
                 let mut svc = HttpService::build()
                     .keep_alive(c.keep_alive)
-                    .client_timeout(c.client_timeout);
+                    .client_timeout(c.client_timeout)
+                    .client_disconnect(c.client_shutdown);
 
                 if let Some(handler) = on_connect_fn.clone() {
                     svc = svc
@@ -554,8 +558,8 @@ where
         Ok(self)
     }
 
-    #[cfg(unix)]
     /// Start listening for incoming unix domain connections.
+    #[cfg(unix)]
     pub fn bind_uds<A>(mut self, addr: A) -> io::Result<Self>
     where
         A: AsRef<std::path::Path>,
@@ -568,6 +572,7 @@ where
         let factory = self.factory.clone();
         let socket_addr =
             net::SocketAddr::new(net::IpAddr::V4(net::Ipv4Addr::new(127, 0, 0, 1)), 8080);
+
         self.sockets.push(Socket {
             scheme: "http",
             addr: socket_addr,
@@ -592,6 +597,7 @@ where
                     HttpService::build()
                         .keep_alive(c.keep_alive)
                         .client_timeout(c.client_timeout)
+                        .client_disconnect(c.client_shutdown)
                         .finish(map_config(fac, move |_| config.clone())),
                 )
             },

src/service.rs

@@ -7,14 +7,14 @@ use actix_http::{
     http::{HeaderMap, Method, StatusCode, Uri, Version},
     Extensions, HttpMessage, Payload, PayloadStream, RequestHead, Response, ResponseHead,
 };
-use actix_router::{IntoPattern, Path, Resource, ResourceDef, Url};
+use actix_router::{IntoPatterns, Path, Patterns, Resource, ResourceDef, Url};
 use actix_service::{IntoServiceFactory, ServiceFactory};
 #[cfg(feature = "cookies")]
 use cookie::{Cookie, ParseError as CookieParseError};
 
 use crate::{
     config::{AppConfig, AppService},
-    dev::insert_slash,
+    dev::ensure_leading_slash,
     guard::Guard,
     info::ConnectionInfo,
     rmap::ResourceMap,
@@ -59,9 +59,9 @@ where
     }
 }
 
-/// An service http request
+/// A service level request wrapper.
 ///
-/// ServiceRequest allows mutable access to request's internal structures
+/// Allows mutable access to request's internal structures.
 pub struct ServiceRequest {
     req: HttpRequest,
     payload: Payload,
@@ -117,7 +117,7 @@ impl ServiceRequest {
     /// This method returns reference to the request head
     #[inline]
     pub fn head(&self) -> &RequestHead {
-        &self.req.head()
+        self.req.head()
     }
 
     /// This method returns reference to the request head
@@ -212,14 +212,14 @@ impl ServiceRequest {
         self.req.match_pattern()
     }
 
-    #[inline]
     /// Get a mutable reference to the Path parameters.
+    #[inline]
     pub fn match_info_mut(&mut self) -> &mut Path<Url> {
         self.req.match_info_mut()
     }
 
-    #[inline]
     /// Get a reference to a `ResourceMap` of current application.
+    #[inline]
     pub fn resource_map(&self) -> &ResourceMap {
         self.req.resource_map()
     }
@@ -325,6 +325,7 @@ impl fmt::Debug for ServiceRequest {
     }
 }
 
+/// A service level response wrapper.
 pub struct ServiceResponse<B = AnyBody> {
     request: HttpRequest,
     response: HttpResponse<B>,
@@ -458,14 +459,14 @@ where
 }
 
 pub struct WebService {
-    rdef: Vec<String>,
+    rdef: Patterns,
     name: Option<String>,
     guards: Vec<Box<dyn Guard>>,
 }
 
 impl WebService {
     /// Create new `WebService` instance.
-    pub fn new<T: IntoPattern>(path: T) -> Self {
+    pub fn new<T: IntoPatterns>(path: T) -> Self {
         WebService {
             rdef: path.patterns(),
             name: None,
@@ -475,7 +476,7 @@ impl WebService {
 
     /// Set service name.
     ///
-    /// Name is used for url generation.
+    /// Name is used for URL generation.
     pub fn name(mut self, name: &str) -> Self {
         self.name = Some(name.to_string());
         self
@@ -527,7 +528,7 @@ impl WebService {
 
 struct WebServiceImpl<T> {
     srv: T,
-    rdef: Vec<String>,
+    rdef: Patterns,
     name: Option<String>,
     guards: Vec<Box<dyn Guard>>,
 }
@@ -550,13 +551,15 @@ where
         };
 
         let mut rdef = if config.is_root() || !self.rdef.is_empty() {
-            ResourceDef::new(insert_slash(self.rdef))
+            ResourceDef::new(ensure_leading_slash(self.rdef))
         } else {
             ResourceDef::new(self.rdef)
         };
+
         if let Some(ref name) = self.name {
-            *rdef.name_mut() = name.clone();
+            rdef.set_name(name);
         }
+
         config.register_service(rdef, guards, self.srv, None)
     }
 }

src/test.rs

@@ -1,6 +1,6 @@
 //! Various helpers for Actix applications to use during testing.
 
-use std::{net::SocketAddr, rc::Rc};
+use std::{borrow::Cow, net::SocketAddr, rc::Rc};
 
 pub use actix_http::test::TestBuffer;
 use actix_http::{
@@ -56,7 +56,7 @@ pub fn default_service(
 /// async fn test_init_service() {
 ///     let app = test::init_service(
 ///         App::new()
-///             .service(web::resource("/test").to(|| async { HttpResponse::Ok() }))
+///             .service(web::resource("/test").to(|| async { "OK" }))
 ///     ).await;
 ///
 ///     // Create request object
@@ -470,19 +470,31 @@ impl TestRequest {
         self
     }
 
-    /// Set request path pattern parameter
-    pub fn param(mut self, name: &'static str, value: &'static str) -> Self {
+    /// Set request path pattern parameter.
+    ///
+    /// # Examples
+    /// ```
+    /// use actix_web::test::TestRequest;
+    ///
+    /// let req = TestRequest::default().param("foo", "bar");
+    /// let req = TestRequest::default().param("foo".to_owned(), "bar".to_owned());
+    /// ```
+    pub fn param(
+        mut self,
+        name: impl Into<Cow<'static, str>>,
+        value: impl Into<Cow<'static, str>>,
+    ) -> Self {
         self.path.add_static(name, value);
         self
     }
 
-    /// Set peer addr
+    /// Set peer addr.
     pub fn peer_addr(mut self, addr: SocketAddr) -> Self {
         self.peer_addr = Some(addr);
         self
     }
 
-    /// Set request payload
+    /// Set request payload.
     pub fn set_payload<B: Into<Bytes>>(mut self, data: B) -> Self {
         self.req.set_payload(data);
         self

src/types/either.rs

@@ -253,7 +253,7 @@ where
                         Ok(bytes) => {
                             let fallback = bytes.clone();
                             let left =
-                                L::from_request(&this.req, &mut payload_from_bytes(bytes));
+                                L::from_request(this.req, &mut payload_from_bytes(bytes));
                             EitherExtractState::Left { left, fallback }
                         }
                         Err(err) => break Err(EitherExtractError::Bytes(err)),
@@ -265,7 +265,7 @@ where
                         Ok(extracted) => break Ok(Either::Left(extracted)),
                         Err(left_err) => {
                             let right = R::from_request(
-                                &this.req,
+                                this.req,
                                 &mut payload_from_bytes(mem::take(fallback)),
                             );
                             EitherExtractState::Right {

src/types/form.rs

@@ -30,7 +30,7 @@ use crate::{
 ///
 /// # Extractor
 /// To extract typed data from a request body, the inner type `T` must implement the
-/// [`serde::Deserialize`] trait.
+/// [`DeserializeOwned`] trait.
 ///
 /// Use [`FormConfig`] to configure extraction process.
 ///

src/types/json.rs

@@ -97,19 +97,13 @@ impl<T> ops::DerefMut for Json<T> {
     }
 }
 
-impl<T> fmt::Display for Json<T>
-where
-    T: fmt::Display,
-{
+impl<T: fmt::Display> fmt::Display for Json<T> {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         fmt::Display::fmt(&self.0, f)
     }
 }
 
-impl<T> Serialize for Json<T>
-where
-    T: Serialize,
-{
+impl<T: Serialize> Serialize for Json<T> {
     fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
     where
         S: serde::Serializer,
@@ -133,10 +127,7 @@ impl<T: Serialize> Responder for Json<T> {
 }
 
 /// See [here](#extractor) for example of usage as an extractor.
-impl<T> FromRequest for Json<T>
-where
-    T: DeserializeOwned + 'static,
-{
+impl<T: DeserializeOwned + 'static> FromRequest for Json<T> {
     type Error = Error;
     type Future = JsonExtractFut<T>;
     type Config = JsonConfig;
@@ -166,10 +157,7 @@ pub struct JsonExtractFut<T> {
     err_handler: JsonErrorHandler,
 }
 
-impl<T> Future for JsonExtractFut<T>
-where
-    T: DeserializeOwned + 'static,
-{
+impl<T: DeserializeOwned + 'static> Future for JsonExtractFut<T> {
     type Output = Result<Json<T>, Error>;
 
     fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
@@ -311,10 +299,7 @@ pub enum JsonBody<T> {
 
 impl<T> Unpin for JsonBody<T> {}
 
-impl<T> JsonBody<T>
-where
-    T: DeserializeOwned + 'static,
-{
+impl<T: DeserializeOwned> JsonBody<T> {
     /// Create a new future to decode a JSON request payload.
     #[allow(clippy::borrow_interior_mutable_const)]
     pub fn new(
@@ -395,10 +380,7 @@ where
     }
 }
 
-impl<T> Future for JsonBody<T>
-where
-    T: DeserializeOwned + 'static,
-{
+impl<T: DeserializeOwned + 'static> Future for JsonBody<T> {
     type Output = Result<T, JsonPayloadError>;
 
     fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
@@ -425,7 +407,7 @@ where
                         }
                     }
                     None => {
-                        let json = serde_json::from_slice::<T>(&buf)
+                        let json = serde_json::from_slice::<T>(buf)
                             .map_err(JsonPayloadError::Deserialize)?;
                         return Poll::Ready(Ok(json));
                     }

src/types/path.rs

@@ -209,7 +209,7 @@ mod tests {
         let resource = ResourceDef::new("/{value}/");
 
         let mut req = TestRequest::with_uri("/32/").to_srv_request();
-        resource.match_path(req.match_info_mut());
+        resource.capture_match_info(req.match_info_mut());
 
         let (req, mut pl) = req.into_parts();
         assert_eq!(*Path::<i8>::from_request(&req, &mut pl).await.unwrap(), 32);
@@ -221,7 +221,7 @@ mod tests {
         let resource = ResourceDef::new("/{key}/{value}/");
 
         let mut req = TestRequest::with_uri("/name/user1/?id=test").to_srv_request();
-        resource.match_path(req.match_info_mut());
+        resource.capture_match_info(req.match_info_mut());
 
         let (req, mut pl) = req.into_parts();
         let (Path(res),) = <(Path<(String, String)>,)>::from_request(&req, &mut pl)
@@ -247,7 +247,7 @@ mod tests {
         let mut req = TestRequest::with_uri("/name/user1/?id=test").to_srv_request();
 
         let resource = ResourceDef::new("/{key}/{value}/");
-        resource.match_path(req.match_info_mut());
+        resource.capture_match_info(req.match_info_mut());
 
         let (req, mut pl) = req.into_parts();
         let mut s = Path::<MyStruct>::from_request(&req, &mut pl).await.unwrap();
@@ -270,7 +270,7 @@ mod tests {
 
         let mut req = TestRequest::with_uri("/name/32/").to_srv_request();
         let resource = ResourceDef::new("/{key}/{value}/");
-        resource.match_path(req.match_info_mut());
+        resource.capture_match_info(req.match_info_mut());
 
         let (req, mut pl) = req.into_parts();
         let s = Path::<Test2>::from_request(&req, &mut pl).await.unwrap();

src/types/query.rs

@@ -3,14 +3,14 @@
 use std::{fmt, ops, sync::Arc};
 
 use actix_utils::future::{err, ok, Ready};
-use serde::de;
+use serde::de::DeserializeOwned;
 
 use crate::{dev::Payload, error::QueryPayloadError, Error, FromRequest, HttpRequest};
 
 /// Extract typed information from the request's query.
 ///
 /// To extract typed data from the URL query string, the inner type `T` must implement the
-/// [`serde::Deserialize`] trait.
+/// [`DeserializeOwned`] trait.
 ///
 /// Use [`QueryConfig`] to configure extraction process.
 ///
@@ -46,18 +46,18 @@ use crate::{dev::Payload, error::QueryPayloadError, Error, FromRequest, HttpRequ
 /// // To access the entire underlying query struct, use `.into_inner()`.
 /// #[get("/debug1")]
 /// async fn debug1(info: web::Query<AuthRequest>) -> String {
-///     dbg!("Authorization object={:?}", info.into_inner());
+///     dbg!("Authorization object = {:?}", info.into_inner());
 ///     "OK".to_string()
 /// }
 ///
-/// // Or use `.0`, which is equivalent to `.into_inner()`.
+/// // Or use destructuring, which is equivalent to `.into_inner()`.
 /// #[get("/debug2")]
-/// async fn debug2(info: web::Query<AuthRequest>) -> String {
-///     dbg!("Authorization object={:?}", info.0);
+/// async fn debug2(web::Query(info): web::Query<AuthRequest>) -> String {
+///     dbg!("Authorization object = {:?}", info);
 ///     "OK".to_string()
 /// }
 /// ```
-#[derive(Clone, PartialEq, Eq, PartialOrd, Ord, Debug)]
+#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord)]
 pub struct Query<T>(pub T);
 
 impl<T> Query<T> {
@@ -65,8 +65,10 @@ impl<T> Query<T> {
     pub fn into_inner(self) -> T {
         self.0
     }
+}
 
-    /// Deserialize `T` from a URL encoded query parameter string.
+impl<T: DeserializeOwned> Query<T> {
+    /// Deserialize a `T` from the URL encoded query parameter string.
     ///
     /// ```
     /// # use std::collections::HashMap;
@@ -76,10 +78,7 @@ impl<T> Query<T> {
     /// assert_eq!(numbers.get("two"), Some(&2));
     /// assert!(numbers.get("three").is_none());
     /// ```
-    pub fn from_query(query_str: &str) -> Result<Self, QueryPayloadError>
-    where
-        T: de::DeserializeOwned,
-    {
+    pub fn from_query(query_str: &str) -> Result<Self, QueryPayloadError> {
         serde_urlencoded::from_str::<T>(query_str)
             .map(Self)
             .map_err(QueryPayloadError::Deserialize)
@@ -107,10 +106,7 @@ impl<T: fmt::Display> fmt::Display for Query<T> {
 }
 
 /// See [here](#usage) for example of usage as an extractor.
-impl<T> FromRequest for Query<T>
-where
-    T: de::DeserializeOwned,
-{
+impl<T: DeserializeOwned> FromRequest for Query<T> {
     type Error = Error;
     type Future = Ready<Result<Self, Error>>;
     type Config = QueryConfig;
@@ -165,7 +161,7 @@ where
 /// let query_cfg = web::QueryConfig::default()
 ///     // use custom error handler
 ///     .error_handler(|err, req| {
-///         error::InternalError::from_response(err, HttpResponse::Conflict().into()).into()
+///         error::InternalError::from_response(err, HttpResponse::Conflict().finish()).into()
 ///     });
 ///
 /// App::new()
@@ -213,10 +209,10 @@ mod tests {
     #[actix_rt::test]
     async fn test_service_request_extract() {
         let req = TestRequest::with_uri("/name/user1/").to_srv_request();
-        assert!(Query::<Id>::from_query(&req.query_string()).is_err());
+        assert!(Query::<Id>::from_query(req.query_string()).is_err());
 
         let req = TestRequest::with_uri("/name/user1/?id=test").to_srv_request();
-        let mut s = Query::<Id>::from_query(&req.query_string()).unwrap();
+        let mut s = Query::<Id>::from_query(req.query_string()).unwrap();
 
         assert_eq!(s.id, "test");
         assert_eq!(

src/web.rs

@@ -1,46 +1,38 @@
 //! Essentials helper functions and types for application registration.
 
-use actix_http::http::Method;
-use actix_router::IntoPattern;
 use std::future::Future;
 
-pub use actix_http::Response as HttpResponse;
+use actix_http::http::Method;
+use actix_router::IntoPatterns;
 pub use bytes::{Buf, BufMut, Bytes, BytesMut};
 
-use crate::error::BlockingError;
-use crate::extract::FromRequest;
-use crate::handler::Handler;
-use crate::resource::Resource;
-use crate::responder::Responder;
-use crate::route::Route;
-use crate::scope::Scope;
-use crate::service::WebService;
+use crate::{
+    error::BlockingError, extract::FromRequest, handler::Handler, resource::Resource,
+    responder::Responder, route::Route, scope::Scope, service::WebService,
+};
 
 pub use crate::config::ServiceConfig;
 pub use crate::data::Data;
 pub use crate::request::HttpRequest;
 pub use crate::request_data::ReqData;
+pub use crate::response::HttpResponse;
 pub use crate::types::*;
 
-/// Create resource for a specific path.
+/// Creates a new resource for a specific path.
 ///
-/// Resources may have variable path segments. For example, a
-/// resource with the path `/a/{name}/c` would match all incoming
-/// requests with paths such as `/a/b/c`, `/a/1/c`, or `/a/etc/c`.
+/// Resources may have dynamic path segments. For example, a resource with the path `/a/{name}/c`
+/// would match all incoming requests with paths such as `/a/b/c`, `/a/1/c`, or `/a/etc/c`.
 ///
-/// A variable segment is specified in the form `{identifier}`,
-/// where the identifier can be used later in a request handler to
-/// access the matched value for that segment. This is done by
-/// looking up the identifier in the `Params` object returned by
-/// `HttpRequest.match_info()` method.
+/// A dynamic segment is specified in the form `{identifier}`, where the identifier can be used
+/// later in a request handler to access the matched value for that segment. This is done by looking
+/// up the identifier in the `Path` object returned by [`HttpRequest.match_info()`] method.
 ///
 /// By default, each segment matches the regular expression `[^{}/]+`.
 ///
 /// You can also specify a custom regex in the form `{identifier:regex}`:
 ///
-/// For instance, to route `GET`-requests on any route matching
-/// `/users/{userid}/{friend}` and store `userid` and `friend` in
-/// the exposed `Params` object:
+/// For instance, to route `GET`-requests on any route matching `/users/{userid}/{friend}` and store
+/// `userid` and `friend` in the exposed `Path` object:
 ///
 /// ```
 /// use actix_web::{web, App, HttpResponse};
@@ -51,14 +43,20 @@ pub use crate::types::*;
 ///         .route(web::head().to(|| HttpResponse::MethodNotAllowed()))
 /// );
 /// ```
-pub fn resource<T: IntoPattern>(path: T) -> Resource {
+pub fn resource<T: IntoPatterns>(path: T) -> Resource {
     Resource::new(path)
 }
 
-/// Configure scope for common root path.
+/// Creates scope for common path prefix.
 ///
-/// Scopes collect multiple paths under a common path prefix.
-/// Scope path can contain variable path segments as resources.
+/// Scopes collect multiple paths under a common path prefix. The scope's path can contain dynamic
+/// path segments.
+///
+/// # Examples
+/// In this example, three routes are set up (and will handle any method):
+///  * `/{project_id}/path1`
+///  * `/{project_id}/path2`
+///  * `/{project_id}/path3`
 ///
 /// ```
 /// use actix_web::{web, App, HttpResponse};
@@ -70,148 +68,50 @@ pub fn resource<T: IntoPattern>(path: T) -> Resource {
 ///         .service(web::resource("/path3").to(|| HttpResponse::MethodNotAllowed()))
 /// );
 /// ```
-///
-/// In the above example, three routes get added:
-///  * /{project_id}/path1
-///  * /{project_id}/path2
-///  * /{project_id}/path3
-///
 pub fn scope(path: &str) -> Scope {
     Scope::new(path)
 }
 
-/// Create *route* without configuration.
+/// Creates a new un-configured route.
 pub fn route() -> Route {
     Route::new()
 }
 
-/// Create *route* with `GET` method guard.
-///
-/// ```
-/// use actix_web::{web, App, HttpResponse};
-///
-/// let app = App::new().service(
-///     web::resource("/{project_id}")
-///        .route(web::get().to(|| HttpResponse::Ok()))
-/// );
-/// ```
-///
-/// In the above example, one `GET` route gets added:
-///  * /{project_id}
-///
-pub fn get() -> Route {
-    method(Method::GET)
+macro_rules! method_route {
+    ($method_fn:ident, $method_const:ident) => {
+        paste::paste! {
+            #[doc = " Creates a new route with `" $method_const "` method guard."]
+            ///
+            /// # Examples
+            #[doc = " In this example, one `" $method_const " /{project_id}` route is set up:"]
+            /// ```
+            /// use actix_web::{web, App, HttpResponse};
+            ///
+            /// let app = App::new().service(
+            ///     web::resource("/{project_id}")
+            #[doc = "         .route(web::" $method_fn "().to(|| HttpResponse::Ok()))"]
+            ///
+            /// );
+            /// ```
+            pub fn $method_fn() -> Route {
+                method(Method::$method_const)
+            }
+        }
+    };
 }
 
-/// Create *route* with `POST` method guard.
-///
-/// ```
-/// use actix_web::{web, App, HttpResponse};
-///
-/// let app = App::new().service(
-///     web::resource("/{project_id}")
-///         .route(web::post().to(|| HttpResponse::Ok()))
-/// );
-/// ```
-///
-/// In the above example, one `POST` route gets added:
-///  * /{project_id}
-///
-pub fn post() -> Route {
-    method(Method::POST)
-}
+method_route!(get, GET);
+method_route!(post, POST);
+method_route!(put, PUT);
+method_route!(patch, PATCH);
+method_route!(delete, DELETE);
+method_route!(head, HEAD);
+method_route!(trace, TRACE);
 
-/// Create *route* with `PUT` method guard.
+/// Creates a new route with specified method guard.
 ///
-/// ```
-/// use actix_web::{web, App, HttpResponse};
-///
-/// let app = App::new().service(
-///     web::resource("/{project_id}")
-///         .route(web::put().to(|| HttpResponse::Ok()))
-/// );
-/// ```
-///
-/// In the above example, one `PUT` route gets added:
-///  * /{project_id}
-///
-pub fn put() -> Route {
-    method(Method::PUT)
-}
-
-/// Create *route* with `PATCH` method guard.
-///
-/// ```
-/// use actix_web::{web, App, HttpResponse};
-///
-/// let app = App::new().service(
-///     web::resource("/{project_id}")
-///         .route(web::patch().to(|| HttpResponse::Ok()))
-/// );
-/// ```
-///
-/// In the above example, one `PATCH` route gets added:
-///  * /{project_id}
-///
-pub fn patch() -> Route {
-    method(Method::PATCH)
-}
-
-/// Create *route* with `DELETE` method guard.
-///
-/// ```
-/// use actix_web::{web, App, HttpResponse};
-///
-/// let app = App::new().service(
-///     web::resource("/{project_id}")
-///         .route(web::delete().to(|| HttpResponse::Ok()))
-/// );
-/// ```
-///
-/// In the above example, one `DELETE` route gets added:
-///  * /{project_id}
-///
-pub fn delete() -> Route {
-    method(Method::DELETE)
-}
-
-/// Create *route* with `HEAD` method guard.
-///
-/// ```
-/// use actix_web::{web, App, HttpResponse};
-///
-/// let app = App::new().service(
-///     web::resource("/{project_id}")
-///         .route(web::head().to(|| HttpResponse::Ok()))
-/// );
-/// ```
-///
-/// In the above example, one `HEAD` route gets added:
-///  * /{project_id}
-///
-pub fn head() -> Route {
-    method(Method::HEAD)
-}
-
-/// Create *route* with `TRACE` method guard.
-///
-/// ```
-/// use actix_web::{web, App, HttpResponse};
-///
-/// let app = App::new().service(
-///     web::resource("/{project_id}")
-///         .route(web::trace().to(|| HttpResponse::Ok()))
-/// );
-/// ```
-///
-/// In the above example, one `HEAD` route gets added:
-///  * /{project_id}
-///
-pub fn trace() -> Route {
-    method(Method::TRACE)
-}
-
-/// Create *route* and add method guard.
+/// # Examples
+/// In this example, one `GET /{project_id}` route is set up:
 ///
 /// ```
 /// use actix_web::{web, http, App, HttpResponse};
@@ -221,15 +121,11 @@ pub fn trace() -> Route {
 ///         .route(web::method(http::Method::GET).to(|| HttpResponse::Ok()))
 /// );
 /// ```
-///
-/// In the above example, one `GET` route gets added:
-///  * /{project_id}
-///
 pub fn method(method: Method) -> Route {
     Route::new().method(method)
 }
 
-/// Create a new route and add handler.
+/// Creates a new any-method route with handler.
 ///
 /// ```
 /// use actix_web::{web, App, HttpResponse, Responder};
@@ -253,7 +149,7 @@ where
     Route::new().to(handler)
 }
 
-/// Create raw service for a specific path.
+/// Creates a raw service for a specific path.
 ///
 /// ```
 /// use actix_web::{dev, web, guard, App, Error, HttpResponse};
@@ -268,12 +164,12 @@ where
 ///         .finish(my_service)
 /// );
 /// ```
-pub fn service<T: IntoPattern>(path: T) -> WebService {
+pub fn service<T: IntoPatterns>(path: T) -> WebService {
     WebService::new(path)
 }
 
-/// Execute blocking function on a thread pool, returns future that resolves
-/// to result of the function execution.
+/// Executes blocking function on a thread pool, returns future that resolves to result of the
+/// function execution.
 pub fn block<F, R>(f: F) -> impl Future<Output = Result<R, BlockingError>>
 where
     F: FnOnce() -> R + Send + 'static,