prepare actix-multipart release 0.4.0-beta.8

prepare actix-test release 0.1.0-beta.7
prepare actix-http-test release 3.0.0-beta.7
2025-07-22 17:07:19 +02:00 · 2021-11-22 18:48:14 +00:00 · 2021-11-22 18:47:43 +00:00 · 2021-11-22 18:46:58 +00:00 · 2021-11-22 18:46:19 +00:00 · 2021-11-22 18:41:43 +00:00
87 changed files with 1998 additions and 1191 deletions
--- a/.cargo/config.toml
+++ b/.cargo/config.toml
@@ -1,14 +1,12 @@
 [alias]
-chk = "check --workspace --all-features --tests --examples --bins"
-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 = "test --workspace --all-features --doc --no-fail-fast -- --nocapture"
+lint = "clippy --workspace --tests --examples --bins -- -Dclippy::todo"
+lint-all = "clippy --workspace --all-features --tests --examples --bins -- -Dclippy::todo"

-ci-feature-powerset-check-no-tls="hack --workspace --feature-powerset --skip=__compress,rustls,openssl check"
-ci-feature-powerset-check-rustls="hack --workspace --feature-powerset --features=rustls --skip=__compress,openssl check"
-ci-feature-powerset-check-openssl="hack --workspace --feature-powerset --features=openssl --skip=__compress,rustls check"
-ci-feature-powerset-check-all="hack --workspace --feature-powerset --skip=__compress check"
+# lib checking
+ci-check-min = "hack --workspace check --no-default-features"
+ci-check-default = "hack --workspace check"
+ci-check-all-feature-powerset="hack --workspace --feature-powerset --skip=__compress,io-uring check"
+ci-check-all-feature-powerset-linux="hack --workspace --feature-powerset --skip=__compress check"
+
+# testing
+ci-doctest = "test --workspace --all-features --doc --no-fail-fast -- --nocapture"
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -62,26 +62,34 @@ jobs:

      - name: check minimal
        uses: actions-rs/cargo@v1
-        with: { command: ci-min }
-
-      - name: check minimal + tests
-        uses: actions-rs/cargo@v1
-        with: { command: ci-min-test }
+        with: { command: ci-check-min }

      - name: check default
        uses: actions-rs/cargo@v1
-        with: { command: ci-default }
-      
-      - name: check full
-        uses: actions-rs/cargo@v1
-        with: { command: ci-full }
+        with: { command: ci-check-default }

      - name: tests
-        uses: actions-rs/cargo@v1
-        timeout-minutes: 40
-        with:
-          command: ci-test
-          args: --skip=test_reading_deflate_encoding_large_random_rustls
+        timeout-minutes: 60
+        run: |
+          cargo test --lib --tests -p=actix-router --all-features
+          cargo test --lib --tests -p=actix-http --all-features
+          cargo test --lib --tests -p=actix-web --features=rustls,openssl -- --skip=test_reading_deflate_encoding_large_random_rustls
+          cargo test --lib --tests -p=actix-web-codegen --all-features
+          cargo test --lib --tests -p=awc --all-features
+          cargo test --lib --tests -p=actix-http-test --all-features
+          cargo test --lib --tests -p=actix-test --all-features
+          cargo test --lib --tests -p=actix-files
+          cargo test --lib --tests -p=actix-multipart --all-features
+          cargo test --lib --tests -p=actix-web-actors --all-features
+
+      - name: tests (io-uring)
+        if: matrix.target.os == 'ubuntu-latest'
+        timeout-minutes: 60
+        run: >
+          sudo bash -c "ulimit -Sl 512
+          && ulimit -Hl 512
+          && PATH=$PATH:/usr/share/rust/.cargo/bin
+          && RUSTUP_TOOLCHAIN=${{ matrix.version }} cargo test --lib --tests -p=actix-files --all-features"

      - name: Clear the cargo caches
        run: |
@@ -114,9 +122,12 @@ jobs:
          args: cargo-hack

      - name: check feature combinations
-        # if: github.ref == 'refs/heads/master'
        uses: actions-rs/cargo@v1
-        with: { command: ci-feature-powerset-check-all }
+        with: { command: ci-check-all-feature-powerset }
+      
+      - name: check feature combinations
+        uses: actions-rs/cargo@v1
+        with: { command: ci-check-all-feature-powerset-linux }

  coverage:
    name: coverage
@@ -141,7 +152,7 @@ jobs:
        if: github.ref == 'refs/heads/master'
        run: |
          cargo install cargo-tarpaulin --vers "^0.13"
-          cargo tarpaulin --out Xml --verbose
+          cargo tarpaulin --workspace --features=rustls,openssl --out Xml --verbose
      - name: Upload to Codecov
        if: github.ref == 'refs/heads/master'
        uses: codecov/codecov-action@v1
@@ -166,13 +177,13 @@ jobs:
      - 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: 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
+        timeout-minutes: 60
        with: { command: ci-doctest }
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -3,6 +3,20 @@
 ## Unreleased - 2021-xx-xx


+## 4.0.0-beta.12 - 2021-11-22
+### Changed
+* Compress middleware's response type is now `AnyBody<Encoder<B>>`. [#2448]
+
+### Fixed
+* Relax `Unpin` bound on `S` (stream) parameter of `HttpResponseBuilder::streaming`. [#2448]
+
+### Removed
+* `dev::ResponseBody` re-export; is function is replaced by the new `dev::AnyBody` enum. [#2446]
+
+[#2446]: https://github.com/actix/actix-web/pull/2446
+[#2448]: https://github.com/actix/actix-web/pull/2448
+
+
 ## 4.0.0-beta.11 - 2021-11-15
 ### Added
 * Re-export `dev::ServerHandle` from `actix-server`. [#2442]
@@ -23,7 +37,7 @@
 ### Changed
 * Associated type `FromRequest::Config` was removed. [#2233]
 * Inner field made private on `web::Payload`. [#2384]
-* `Data::into_inner` and `Data::get_ref` no longer require T: Sized. [#2403]
+* `Data::into_inner` and `Data::get_ref` no longer requires `T: Sized`. [#2403]
 * Updated rustls to v0.20. [#2414]
 * Minimum supported Rust version (MSRV) is now 1.52.

--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "actix-web"
-version = "4.0.0-beta.11"
+version = "4.0.0-beta.12"
 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"]
@@ -65,16 +65,19 @@ rustls = ["actix-http/rustls", "actix-tls/accept", "actix-tls/rustls"]
 # Don't rely on these whatsoever. They may disappear at anytime.
 __compress = []

+# io-uring feature only avaiable for Linux OSes.
+experimental-io-uring = ["actix-server/io-uring"]
+
 [dependencies]
-actix-codec = "0.4.0"
+actix-codec = "0.4.1"
 actix-macros = "0.2.3"
-actix-rt = "2.2"
+actix-rt = "2.3"
 actix-server = "2.0.0-beta.9"
 actix-service = "2.0.0"
 actix-utils = "3.0.0"
-actix-tls = { version = "3.0.0-beta.7", default-features = false, optional = true }
+actix-tls = { version = "3.0.0-beta.9", default-features = false, optional = true }

-actix-http = "3.0.0-beta.12"
+actix-http = "3.0.0-beta.13"
 actix-router = "0.5.0-beta.2"
 actix-web-codegen = "0.5.0-beta.5"

@@ -104,12 +107,12 @@ time = { version = "0.3", default-features = false, features = ["formatting"] }
 url = "2.1"

 [dev-dependencies]
-actix-test = { version = "0.1.0-beta.6", features = ["openssl", "rustls"] }
-awc = { version = "3.0.0-beta.10", features = ["openssl"] }
+actix-test = { version = "0.1.0-beta.7", features = ["openssl", "rustls"] }
+awc = { version = "3.0.0-beta.11", features = ["openssl"] }

 brotli2 = "0.3.2"
 criterion = { version = "0.3", features = ["html_reports"] }
-env_logger = "0.8"
+env_logger = "0.9"
 flate2 = "1.0.13"
 futures-util = { version = "0.3.7", default-features = false, features = ["std"] }
 rand = "0.8"
@@ -117,7 +120,7 @@ rcgen = "0.8"
 rustls-pemfile = "0.2"
 tls-openssl = { package = "openssl", version = "0.10.9" }
 tls-rustls = { package = "rustls", version = "0.20.0" }
-zstd = "0.7"
+zstd = "0.9"

 [profile.dev]
 # Disabling debug info speeds up builds a bunch and we don't rely on it for debugging that much.
--- a/README.md
+++ b/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.11)](https://docs.rs/actix-web/4.0.0-beta.11)
+[![Documentation](https://docs.rs/actix-web/badge.svg?version=4.0.0-beta.12)](https://docs.rs/actix-web/4.0.0-beta.12)
 [![Version](https://img.shields.io/badge/rustc-1.52+-ab6000.svg)](https://blog.rust-lang.org/2021/05/06/Rust-1.52.0.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.11/status.svg)](https://deps.rs/crate/actix-web/4.0.0-beta.11)
+[![Dependency Status](https://deps.rs/crate/actix-web/4.0.0-beta.12/status.svg)](https://deps.rs/crate/actix-web/4.0.0-beta.12)
 <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) 
--- a/actix-files/CHANGES.md
+++ b/actix-files/CHANGES.md
@@ -3,6 +3,18 @@
 ## Unreleased - 2021-xx-xx


+## 0.6.0-beta.9 - 2021-11-22
+* Add crate feature `experimental-io-uring`, enabling async file I/O to be utilized. This feature is only available on Linux OSes with recent kernel versions. This feature is semver-exempt. [#2408]
+* Add `NamedFile::open_async`. [#2408]
+* Fix 304 Not Modified responses to omit the Content-Length header, as per the spec. [#2453]
+* The `Responder` impl for `NamedFile` now has a boxed future associated type. [#2408]
+* The `Service` impl for `NamedFileService` now has a boxed future associated type. [#2408]
+* Add `impl Clone` for `FilesService`. [#2408]
+
+[#2408]: https://github.com/actix/actix-web/pull/2408
+[#2453]: https://github.com/actix/actix-web/pull/2453
+
+
 ## 0.6.0-beta.8 - 2021-10-20
 * Minimum supported Rust version (MSRV) is now 1.52.

--- a/actix-files/Cargo.toml
+++ b/actix-files/Cargo.toml
@@ -1,7 +1,11 @@
 [package]
 name = "actix-files"
-version = "0.6.0-beta.8"
-authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
+version = "0.6.0-beta.9"
+authors = [
+    "Nikolay Kim <fafhrd91@gmail.com>",
+    "fakeshadow <24548779@qq.com>",
+    "Rob Ede <robjtede@icloud.com>",
+]
 description = "Static file serving for Actix Web"
 keywords = ["actix", "http", "async", "futures"]
 homepage = "https://actix.rs"
@@ -14,11 +18,13 @@ edition = "2018"
 name = "actix_files"
 path = "src/lib.rs"

+[features]
+experimental-io-uring = ["actix-web/experimental-io-uring", "tokio-uring"]
+
 [dependencies]
 actix-web = { version = "4.0.0-beta.11", default-features = false }
-actix-http = "3.0.0-beta.12"
+actix-http = "3.0.0-beta.13"
 actix-service = "2.0.0"
-actix-utils = "3.0.0"

 askama_escape = "0.10"
 bitflags = "1"
@@ -30,8 +36,11 @@ log = "0.4"
 mime = "0.3"
 mime_guess = "2.0.1"
 percent-encoding = "2.1"
+pin-project-lite = "0.2.7"
+
+tokio-uring = { version = "0.1", optional = true }

 [dev-dependencies]
 actix-rt = "2.2"
 actix-web = "4.0.0-beta.11"
-actix-test = "0.1.0-beta.6"
+actix-test = "0.1.0-beta.7"
--- a/actix-files/README.md
+++ b/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.8)](https://docs.rs/actix-files/0.6.0-beta.8)
+[![Documentation](https://docs.rs/actix-files/badge.svg?version=0.6.0-beta.9)](https://docs.rs/actix-files/0.6.0-beta.9)
 [![Version](https://img.shields.io/badge/rustc-1.52+-ab6000.svg)](https://blog.rust-lang.org/2021/05/06/Rust-1.52.0.html)
 ![License](https://img.shields.io/crates/l/actix-files.svg)
 <br />
-[![dependency status](https://deps.rs/crate/actix-files/0.6.0-beta.8/status.svg)](https://deps.rs/crate/actix-files/0.6.0-beta.8)
+[![dependency status](https://deps.rs/crate/actix-files/0.6.0-beta.9/status.svg)](https://deps.rs/crate/actix-files/0.6.0-beta.9)
 [![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)

--- a/actix-files/src/chunked.rs
+++ b/actix-files/src/chunked.rs
@@ -1,98 +1,278 @@
 use std::{
    cmp, fmt,
-    fs::File,
    future::Future,
-    io::{self, Read, Seek},
+    io,
    pin::Pin,
    task::{Context, Poll},
 };

-use actix_web::{
-    error::{BlockingError, Error},
-    rt::task::{spawn_blocking, JoinHandle},
-};
+use actix_web::error::Error;
 use bytes::Bytes;
 use futures_core::{ready, Stream};
+use pin_project_lite::pin_project;

-#[doc(hidden)]
-/// A helper created from a `std::fs::File` which reads the file
-/// chunk-by-chunk on a `ThreadPool`.
-pub struct ChunkedReadFile {
-    size: u64,
-    offset: u64,
-    state: ChunkedReadFileState,
-    counter: u64,
-}
+use super::named::File;

-enum ChunkedReadFileState {
-    File(Option<File>),
-    Future(JoinHandle<Result<(File, Bytes), io::Error>>),
-}
-
-impl ChunkedReadFile {
-    pub(crate) fn new(size: u64, offset: u64, file: File) -> Self {
-        Self {
-            size,
-            offset,
-            state: ChunkedReadFileState::File(Some(file)),
-            counter: 0,
-        }
+pin_project! {
+    /// Adapter to read a `std::file::File` in chunks.
+    #[doc(hidden)]
+    pub struct ChunkedReadFile<F, Fut> {
+        size: u64,
+        offset: u64,
+        #[pin]
+        state: ChunkedReadFileState<Fut>,
+        counter: u64,
+        callback: F,
    }
 }

-impl fmt::Debug for ChunkedReadFile {
+#[cfg(not(feature = "experimental-io-uring"))]
+pin_project! {
+    #[project = ChunkedReadFileStateProj]
+    #[project_replace = ChunkedReadFileStateProjReplace]
+    enum ChunkedReadFileState<Fut> {
+        File { file: Option<File>, },
+        Future { #[pin] fut: Fut },
+    }
+}
+
+#[cfg(feature = "experimental-io-uring")]
+pin_project! {
+    #[project = ChunkedReadFileStateProj]
+    #[project_replace = ChunkedReadFileStateProjReplace]
+    enum ChunkedReadFileState<Fut> {
+        File { file: Option<(File, BytesMut)> },
+        Future { #[pin] fut: Fut },
+    }
+}
+
+impl<F, Fut> fmt::Debug for ChunkedReadFile<F, Fut> {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        f.write_str("ChunkedReadFile")
    }
 }

-impl Stream for ChunkedReadFile {
+pub(crate) fn new_chunked_read(
+    size: u64,
+    offset: u64,
+    file: File,
+) -> impl Stream<Item = Result<Bytes, Error>> {
+    ChunkedReadFile {
+        size,
+        offset,
+        #[cfg(not(feature = "experimental-io-uring"))]
+        state: ChunkedReadFileState::File { file: Some(file) },
+        #[cfg(feature = "experimental-io-uring")]
+        state: ChunkedReadFileState::File {
+            file: Some((file, BytesMut::new())),
+        },
+        counter: 0,
+        callback: chunked_read_file_callback,
+    }
+}
+
+#[cfg(not(feature = "experimental-io-uring"))]
+async fn chunked_read_file_callback(
+    mut file: File,
+    offset: u64,
+    max_bytes: usize,
+) -> Result<(File, Bytes), Error> {
+    use io::{Read as _, Seek as _};
+
+    let res = actix_web::rt::task::spawn_blocking(move || {
+        let mut buf = Vec::with_capacity(max_bytes);
+
+        file.seek(io::SeekFrom::Start(offset))?;
+
+        let n_bytes = file.by_ref().take(max_bytes as u64).read_to_end(&mut buf)?;
+
+        if n_bytes == 0 {
+            Err(io::Error::from(io::ErrorKind::UnexpectedEof))
+        } else {
+            Ok((file, Bytes::from(buf)))
+        }
+    })
+    .await
+    .map_err(|_| actix_web::error::BlockingError)??;
+
+    Ok(res)
+}
+
+#[cfg(feature = "experimental-io-uring")]
+async fn chunked_read_file_callback(
+    file: File,
+    offset: u64,
+    max_bytes: usize,
+    mut bytes_mut: BytesMut,
+) -> io::Result<(File, Bytes, BytesMut)> {
+    bytes_mut.reserve(max_bytes);
+
+    let (res, mut bytes_mut) = file.read_at(bytes_mut, offset).await;
+    let n_bytes = res?;
+
+    if n_bytes == 0 {
+        return Err(io::ErrorKind::UnexpectedEof.into());
+    }
+
+    let bytes = bytes_mut.split_to(n_bytes).freeze();
+
+    Ok((file, bytes, bytes_mut))
+}
+
+#[cfg(feature = "experimental-io-uring")]
+impl<F, Fut> Stream for ChunkedReadFile<F, Fut>
+where
+    F: Fn(File, u64, usize, BytesMut) -> Fut,
+    Fut: Future<Output = io::Result<(File, Bytes, BytesMut)>>,
+{
    type Item = Result<Bytes, Error>;

    fn poll_next(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Option<Self::Item>> {
-        let this = self.as_mut().get_mut();
-        match this.state {
-            ChunkedReadFileState::File(ref mut file) => {
-                let size = this.size;
-                let offset = this.offset;
-                let counter = this.counter;
+        let mut this = self.as_mut().project();
+        match this.state.as_mut().project() {
+            ChunkedReadFileStateProj::File { file } => {
+                let size = *this.size;
+                let offset = *this.offset;
+                let counter = *this.counter;

                if size == counter {
                    Poll::Ready(None)
                } else {
-                    let mut file = file
+                    let max_bytes = cmp::min(size.saturating_sub(counter), 65_536) as usize;
+
+                    let (file, bytes_mut) = file
                        .take()
                        .expect("ChunkedReadFile polled after completion");

-                    let fut = spawn_blocking(move || {
-                        let max_bytes = cmp::min(size.saturating_sub(counter), 65_536) as usize;
+                    let fut = (this.callback)(file, offset, max_bytes, bytes_mut);

-                        let mut buf = Vec::with_capacity(max_bytes);
-                        file.seek(io::SeekFrom::Start(offset))?;
+                    this.state
+                        .project_replace(ChunkedReadFileState::Future { fut });

-                        let n_bytes =
-                            file.by_ref().take(max_bytes as u64).read_to_end(&mut buf)?;
-
-                        if n_bytes == 0 {
-                            return Err(io::ErrorKind::UnexpectedEof.into());
-                        }
-
-                        Ok((file, Bytes::from(buf)))
-                    });
-                    this.state = ChunkedReadFileState::Future(fut);
                    self.poll_next(cx)
                }
            }
-            ChunkedReadFileState::Future(ref mut fut) => {
-                let (file, bytes) =
-                    ready!(Pin::new(fut).poll(cx)).map_err(|_| BlockingError)??;
-                this.state = ChunkedReadFileState::File(Some(file));
+            ChunkedReadFileStateProj::Future { fut } => {
+                let (file, bytes, bytes_mut) = ready!(fut.poll(cx))?;

-                this.offset += bytes.len() as u64;
-                this.counter += bytes.len() as u64;
+                this.state.project_replace(ChunkedReadFileState::File {
+                    file: Some((file, bytes_mut)),
+                });
+
+                *this.offset += bytes.len() as u64;
+                *this.counter += bytes.len() as u64;

                Poll::Ready(Some(Ok(bytes)))
            }
        }
    }
 }
+
+#[cfg(not(feature = "experimental-io-uring"))]
+impl<F, Fut> Stream for ChunkedReadFile<F, Fut>
+where
+    F: Fn(File, u64, usize) -> Fut,
+    Fut: Future<Output = Result<(File, Bytes), Error>>,
+{
+    type Item = Result<Bytes, Error>;
+
+    fn poll_next(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Option<Self::Item>> {
+        let mut this = self.as_mut().project();
+        match this.state.as_mut().project() {
+            ChunkedReadFileStateProj::File { file } => {
+                let size = *this.size;
+                let offset = *this.offset;
+                let counter = *this.counter;
+
+                if size == counter {
+                    Poll::Ready(None)
+                } else {
+                    let max_bytes = cmp::min(size.saturating_sub(counter), 65_536) as usize;
+
+                    let file = file
+                        .take()
+                        .expect("ChunkedReadFile polled after completion");
+
+                    let fut = (this.callback)(file, offset, max_bytes);
+
+                    this.state
+                        .project_replace(ChunkedReadFileState::Future { fut });
+
+                    self.poll_next(cx)
+                }
+            }
+            ChunkedReadFileStateProj::Future { fut } => {
+                let (file, bytes) = ready!(fut.poll(cx))?;
+
+                this.state
+                    .project_replace(ChunkedReadFileState::File { file: Some(file) });
+
+                *this.offset += bytes.len() as u64;
+                *this.counter += bytes.len() as u64;
+
+                Poll::Ready(Some(Ok(bytes)))
+            }
+        }
+    }
+}
+
+#[cfg(feature = "experimental-io-uring")]
+use bytes_mut::BytesMut;
+
+// TODO: remove new type and use bytes::BytesMut directly
+#[doc(hidden)]
+#[cfg(feature = "experimental-io-uring")]
+mod bytes_mut {
+    use std::ops::{Deref, DerefMut};
+
+    use tokio_uring::buf::{IoBuf, IoBufMut};
+
+    #[derive(Debug)]
+    pub struct BytesMut(bytes::BytesMut);
+
+    impl BytesMut {
+        pub(super) fn new() -> Self {
+            Self(bytes::BytesMut::new())
+        }
+    }
+
+    impl Deref for BytesMut {
+        type Target = bytes::BytesMut;
+
+        fn deref(&self) -> &Self::Target {
+            &self.0
+        }
+    }
+
+    impl DerefMut for BytesMut {
+        fn deref_mut(&mut self) -> &mut Self::Target {
+            &mut self.0
+        }
+    }
+
+    unsafe impl IoBuf for BytesMut {
+        fn stable_ptr(&self) -> *const u8 {
+            self.0.as_ptr()
+        }
+
+        fn bytes_init(&self) -> usize {
+            self.0.len()
+        }
+
+        fn bytes_total(&self) -> usize {
+            self.0.capacity()
+        }
+    }
+
+    unsafe impl IoBufMut for BytesMut {
+        fn stable_mut_ptr(&mut self) -> *mut u8 {
+            self.0.as_mut_ptr()
+        }
+
+        unsafe fn set_init(&mut self, init_len: usize) {
+            if self.len() < init_len {
+                self.0.set_len(init_len);
+            }
+        }
+    }
+}
--- a/actix-files/src/files.rs
+++ b/actix-files/src/files.rs
@@ -6,7 +6,6 @@ use std::{
 };

 use actix_service::{boxed, IntoServiceFactory, ServiceFactory, ServiceFactoryExt};
-use actix_utils::future::ok;
 use actix_web::{
    dev::{
        AppService, HttpServiceFactory, RequestHead, ResourceDef, ServiceRequest,
@@ -20,8 +19,9 @@ use actix_web::{
 use futures_core::future::LocalBoxFuture;

 use crate::{
-    directory_listing, named, Directory, DirectoryRenderer, FilesService, HttpNewService,
-    MimeOverride, PathFilter,
+    directory_listing, named,
+    service::{FilesService, FilesServiceInner},
+    Directory, DirectoryRenderer, HttpNewService, MimeOverride, PathFilter,
 };

 /// Static files handling service.
@@ -283,11 +283,17 @@ impl Files {
    /// Setting a fallback static file handler:
    /// ```
    /// use actix_files::{Files, NamedFile};
+    /// use actix_web::dev::{ServiceRequest, ServiceResponse, fn_service};
    ///
    /// # fn run() -> Result<(), actix_web::Error> {
    /// let files = Files::new("/", "./static")
    ///     .index_file("index.html")
-    ///     .default_handler(NamedFile::open("./static/404.html")?);
+    ///     .default_handler(fn_service(|req: ServiceRequest| async {
+    ///         let (req, _) = req.into_parts();
+    ///         let file = NamedFile::open_async("./static/404.html").await?;
+    ///         let res = file.into_response(&req);
+    ///         Ok(ServiceResponse::new(req, res))
+    ///     }));
    /// # Ok(())
    /// # }
    /// ```
@@ -353,7 +359,7 @@ impl ServiceFactory<ServiceRequest> for Files {
    type Future = LocalBoxFuture<'static, Result<Self::Service, Self::InitError>>;

    fn new_service(&self, _: ()) -> Self::Future {
-        let mut srv = FilesService {
+        let mut inner = FilesServiceInner {
            directory: self.directory.clone(),
            index: self.index.clone(),
            show_index: self.show_index,
@@ -372,14 +378,14 @@ impl ServiceFactory<ServiceRequest> for Files {
            Box::pin(async {
                match fut.await {
                    Ok(default) => {
-                        srv.default = Some(default);
-                        Ok(srv)
+                        inner.default = Some(default);
+                        Ok(FilesService(Rc::new(inner)))
                    }
                    Err(_) => Err(()),
                }
            })
        } else {
-            Box::pin(ok(srv))
+            Box::pin(async move { Ok(FilesService(Rc::new(inner))) })
        }
    }
 }
--- a/actix-files/src/lib.rs
+++ b/actix-files/src/lib.rs
@@ -33,12 +33,12 @@ mod path_buf;
 mod range;
 mod service;

-pub use crate::chunked::ChunkedReadFile;
-pub use crate::directory::Directory;
-pub use crate::files::Files;
-pub use crate::named::NamedFile;
-pub use crate::range::HttpRange;
-pub use crate::service::FilesService;
+pub use self::chunked::ChunkedReadFile;
+pub use self::directory::Directory;
+pub use self::files::Files;
+pub use self::named::NamedFile;
+pub use self::range::HttpRange;
+pub use self::service::FilesService;

 use self::directory::{directory_listing, DirectoryRenderer};
 use self::error::FilesError;
@@ -62,13 +62,12 @@ type PathFilter = dyn Fn(&Path, &RequestHead) -> bool;
 #[cfg(test)]
 mod tests {
    use std::{
-        fs::{self, File},
+        fs::{self},
        ops::Add,
        time::{Duration, SystemTime},
    };

    use actix_service::ServiceFactory;
-    use actix_utils::future::ok;
    use actix_web::{
        guard,
        http::{
@@ -82,6 +81,7 @@ mod tests {
    };

    use super::*;
+    use crate::named::File;

    #[actix_web::test]
    async fn test_file_extension_to_mime() {
@@ -100,7 +100,7 @@ mod tests {

    #[actix_rt::test]
    async fn test_if_modified_since_without_if_none_match() {
-        let file = NamedFile::open("Cargo.toml").unwrap();
+        let file = NamedFile::open_async("Cargo.toml").await.unwrap();
        let since = header::HttpDate::from(SystemTime::now().add(Duration::from_secs(60)));

        let req = TestRequest::default()
@@ -112,7 +112,7 @@ mod tests {

    #[actix_rt::test]
    async fn test_if_modified_since_without_if_none_match_same() {
-        let file = NamedFile::open("Cargo.toml").unwrap();
+        let file = NamedFile::open_async("Cargo.toml").await.unwrap();
        let since = file.last_modified().unwrap();

        let req = TestRequest::default()
@@ -124,7 +124,7 @@ mod tests {

    #[actix_rt::test]
    async fn test_if_modified_since_with_if_none_match() {
-        let file = NamedFile::open("Cargo.toml").unwrap();
+        let file = NamedFile::open_async("Cargo.toml").await.unwrap();
        let since = header::HttpDate::from(SystemTime::now().add(Duration::from_secs(60)));

        let req = TestRequest::default()
@@ -137,7 +137,7 @@ mod tests {

    #[actix_rt::test]
    async fn test_if_unmodified_since() {
-        let file = NamedFile::open("Cargo.toml").unwrap();
+        let file = NamedFile::open_async("Cargo.toml").await.unwrap();
        let since = file.last_modified().unwrap();

        let req = TestRequest::default()
@@ -149,7 +149,7 @@ mod tests {

    #[actix_rt::test]
    async fn test_if_unmodified_since_failed() {
-        let file = NamedFile::open("Cargo.toml").unwrap();
+        let file = NamedFile::open_async("Cargo.toml").await.unwrap();
        let since = header::HttpDate::from(SystemTime::UNIX_EPOCH);

        let req = TestRequest::default()
@@ -161,8 +161,8 @@ mod tests {

    #[actix_rt::test]
    async fn test_named_file_text() {
-        assert!(NamedFile::open("test--").is_err());
-        let mut file = NamedFile::open("Cargo.toml").unwrap();
+        assert!(NamedFile::open_async("test--").await.is_err());
+        let mut file = NamedFile::open_async("Cargo.toml").await.unwrap();
        {
            file.file();
            let _f: &File = &file;
@@ -185,8 +185,8 @@ mod tests {

    #[actix_rt::test]
    async fn test_named_file_content_disposition() {
-        assert!(NamedFile::open("test--").is_err());
-        let mut file = NamedFile::open("Cargo.toml").unwrap();
+        assert!(NamedFile::open_async("test--").await.is_err());
+        let mut file = NamedFile::open_async("Cargo.toml").await.unwrap();
        {
            file.file();
            let _f: &File = &file;
@@ -202,7 +202,8 @@ mod tests {
            "inline; filename=\"Cargo.toml\""
        );

-        let file = NamedFile::open("Cargo.toml")
+        let file = NamedFile::open_async("Cargo.toml")
+            .await
            .unwrap()
            .disable_content_disposition();
        let req = TestRequest::default().to_http_request();
@@ -212,8 +213,19 @@ mod tests {

    #[actix_rt::test]
    async fn test_named_file_non_ascii_file_name() {
-        let mut file =
-            NamedFile::from_file(File::open("Cargo.toml").unwrap(), "貨物.toml").unwrap();
+        let file = {
+            #[cfg(feature = "experimental-io-uring")]
+            {
+                crate::named::File::open("Cargo.toml").await.unwrap()
+            }
+
+            #[cfg(not(feature = "experimental-io-uring"))]
+            {
+                crate::named::File::open("Cargo.toml").unwrap()
+            }
+        };
+
+        let mut file = NamedFile::from_file(file, "貨物.toml").unwrap();
        {
            file.file();
            let _f: &File = &file;
@@ -236,7 +248,8 @@ mod tests {

    #[actix_rt::test]
    async fn test_named_file_set_content_type() {
-        let mut file = NamedFile::open("Cargo.toml")
+        let mut file = NamedFile::open_async("Cargo.toml")
+            .await
            .unwrap()
            .set_content_type(mime::TEXT_XML);
        {
@@ -261,7 +274,7 @@ mod tests {

    #[actix_rt::test]
    async fn test_named_file_image() {
-        let mut file = NamedFile::open("tests/test.png").unwrap();
+        let mut file = NamedFile::open_async("tests/test.png").await.unwrap();
        {
            file.file();
            let _f: &File = &file;
@@ -284,7 +297,7 @@ mod tests {

    #[actix_rt::test]
    async fn test_named_file_javascript() {
-        let file = NamedFile::open("tests/test.js").unwrap();
+        let file = NamedFile::open_async("tests/test.js").await.unwrap();

        let req = TestRequest::default().to_http_request();
        let resp = file.respond_to(&req).await.unwrap();
@@ -304,7 +317,8 @@ mod tests {
            disposition: DispositionType::Attachment,
            parameters: vec![DispositionParam::Filename(String::from("test.png"))],
        };
-        let mut file = NamedFile::open("tests/test.png")
+        let mut file = NamedFile::open_async("tests/test.png")
+            .await
            .unwrap()
            .set_content_disposition(cd);
        {
@@ -329,7 +343,7 @@ mod tests {

    #[actix_rt::test]
    async fn test_named_file_binary() {
-        let mut file = NamedFile::open("tests/test.binary").unwrap();
+        let mut file = NamedFile::open_async("tests/test.binary").await.unwrap();
        {
            file.file();
            let _f: &File = &file;
@@ -352,7 +366,8 @@ mod tests {

    #[actix_rt::test]
    async fn test_named_file_status_code_text() {
-        let mut file = NamedFile::open("Cargo.toml")
+        let mut file = NamedFile::open_async("Cargo.toml")
+            .await
            .unwrap()
            .set_status_code(StatusCode::NOT_FOUND);
        {
@@ -568,7 +583,8 @@ mod tests {
    async fn test_named_file_content_encoding() {
        let srv = test::init_service(App::new().wrap(Compress::default()).service(
            web::resource("/").to(|| async {
-                NamedFile::open("Cargo.toml")
+                NamedFile::open_async("Cargo.toml")
+                    .await
                    .unwrap()
                    .set_content_encoding(header::ContentEncoding::Identity)
            }),
@@ -588,7 +604,8 @@ mod tests {
    async fn test_named_file_content_encoding_gzip() {
        let srv = test::init_service(App::new().wrap(Compress::default()).service(
            web::resource("/").to(|| async {
-                NamedFile::open("Cargo.toml")
+                NamedFile::open_async("Cargo.toml")
+                    .await
                    .unwrap()
                    .set_content_encoding(header::ContentEncoding::Gzip)
            }),
@@ -614,7 +631,7 @@ mod tests {
    #[actix_rt::test]
    async fn test_named_file_allowed_method() {
        let req = TestRequest::default().method(Method::GET).to_http_request();
-        let file = NamedFile::open("Cargo.toml").unwrap();
+        let file = NamedFile::open_async("Cargo.toml").await.unwrap();
        let resp = file.respond_to(&req).await.unwrap();
        assert_eq!(resp.status(), StatusCode::OK);
    }
@@ -705,8 +722,8 @@ mod tests {
    #[actix_rt::test]
    async fn test_default_handler_file_missing() {
        let st = Files::new("/", ".")
-            .default_handler(|req: ServiceRequest| {
-                ok(req.into_response(HttpResponse::Ok().body("default content")))
+            .default_handler(|req: ServiceRequest| async {
+                Ok(req.into_response(HttpResponse::Ok().body("default content")))
            })
            .new_service(())
            .await
@@ -789,9 +806,8 @@ mod tests {

    #[actix_rt::test]
    async fn test_serve_named_file() {
-        let srv =
-            test::init_service(App::new().service(NamedFile::open("Cargo.toml").unwrap()))
-                .await;
+        let factory = NamedFile::open_async("Cargo.toml").await.unwrap();
+        let srv = test::init_service(App::new().service(factory)).await;

        let req = TestRequest::get().uri("/Cargo.toml").to_request();
        let res = test::call_service(&srv, req).await;
@@ -808,11 +824,9 @@ mod tests {

    #[actix_rt::test]
    async fn test_serve_named_file_prefix() {
-        let srv = test::init_service(
-            App::new()
-                .service(web::scope("/test").service(NamedFile::open("Cargo.toml").unwrap())),
-        )
-        .await;
+        let factory = NamedFile::open_async("Cargo.toml").await.unwrap();
+        let srv =
+            test::init_service(App::new().service(web::scope("/test").service(factory))).await;

        let req = TestRequest::get().uri("/test/Cargo.toml").to_request();
        let res = test::call_service(&srv, req).await;
@@ -829,10 +843,8 @@ mod tests {

    #[actix_rt::test]
    async fn test_named_file_default_service() {
-        let srv = test::init_service(
-            App::new().default_service(NamedFile::open("Cargo.toml").unwrap()),
-        )
-        .await;
+        let factory = NamedFile::open_async("Cargo.toml").await.unwrap();
+        let srv = test::init_service(App::new().default_service(factory)).await;

        for route in ["/foobar", "/baz", "/"].iter() {
            let req = TestRequest::get().uri(route).to_request();
@@ -847,8 +859,9 @@ mod tests {

    #[actix_rt::test]
    async fn test_default_handler_named_file() {
+        let factory = NamedFile::open_async("Cargo.toml").await.unwrap();
        let st = Files::new("/", ".")
-            .default_handler(NamedFile::open("Cargo.toml").unwrap())
+            .default_handler(factory)
            .new_service(())
            .await
            .unwrap();
@@ -926,8 +939,8 @@ mod tests {
    #[actix_rt::test]
    async fn test_default_handler_filter() {
        let st = Files::new("/", ".")
-            .default_handler(|req: ServiceRequest| {
-                ok(req.into_response(HttpResponse::Ok().body("default content")))
+            .default_handler(|req: ServiceRequest| async {
+                Ok(req.into_response(HttpResponse::Ok().body("default content")))
            })
            .path_filter(|path, _| path.extension() == Some("png".as_ref()))
            .new_service(())
--- a/actix-files/src/named.rs
+++ b/actix-files/src/named.rs
@@ -1,17 +1,22 @@
-use actix_service::{Service, ServiceFactory};
-use actix_utils::future::{ok, ready, Ready};
-use actix_web::dev::{AppService, HttpServiceFactory, ResourceDef};
-use std::fs::{File, Metadata};
-use std::io;
-use std::ops::{Deref, DerefMut};
-use std::path::{Path, PathBuf};
-use std::time::{SystemTime, UNIX_EPOCH};
+use std::{
+    fmt,
+    fs::Metadata,
+    io,
+    ops::{Deref, DerefMut},
+    path::{Path, PathBuf},
+    time::{SystemTime, UNIX_EPOCH},
+};

 #[cfg(unix)]
 use std::os::unix::fs::MetadataExt;

+use actix_http::body::AnyBody;
+use actix_service::{Service, ServiceFactory};
 use actix_web::{
-    dev::{BodyEncoding, ServiceRequest, ServiceResponse, SizedStream},
+    dev::{
+        AppService, BodyEncoding, HttpServiceFactory, ResourceDef, ServiceRequest,
+        ServiceResponse, SizedStream,
+    },
    http::{
        header::{
            self, Charset, ContentDisposition, DispositionParam, DispositionType, ExtendedValue,
@@ -21,9 +26,9 @@ use actix_web::{
    Error, HttpMessage, HttpRequest, HttpResponse, Responder,
 };
 use bitflags::bitflags;
+use futures_core::future::LocalBoxFuture;
 use mime_guess::from_path;

-use crate::ChunkedReadFile;
 use crate::{encoding::equiv_utf8_text, range::HttpRange};

 bitflags! {
@@ -48,9 +53,9 @@ impl Default for Flags {
 /// use actix_web::App;
 /// use actix_files::NamedFile;
 ///
-/// # fn run() -> Result<(), Box<dyn std::error::Error>> {
-/// let app = App::new()
-///     .service(NamedFile::open("./static/index.html")?);
+/// # async fn run() -> Result<(), Box<dyn std::error::Error>> {
+/// let file = NamedFile::open_async("./static/index.html").await?;
+/// let app = App::new().service(file);
 /// # Ok(())
 /// # }
 /// ```
@@ -62,10 +67,9 @@ impl Default for Flags {
 ///
 /// #[get("/")]
 /// async fn index() -> impl Responder {
-///     NamedFile::open("./static/index.html")
+///     NamedFile::open_async("./static/index.html").await
 /// }
 /// ```
-#[derive(Debug)]
 pub struct NamedFile {
    path: PathBuf,
    file: File,
@@ -78,6 +82,37 @@ pub struct NamedFile {
    pub(crate) encoding: Option<ContentEncoding>,
 }

+impl fmt::Debug for NamedFile {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        f.debug_struct("NamedFile")
+            .field("path", &self.path)
+            .field(
+                "file",
+                #[cfg(feature = "experimental-io-uring")]
+                {
+                    &"tokio_uring::File"
+                },
+                #[cfg(not(feature = "experimental-io-uring"))]
+                {
+                    &self.file
+                },
+            )
+            .field("modified", &self.modified)
+            .field("md", &self.md)
+            .field("flags", &self.flags)
+            .field("status_code", &self.status_code)
+            .field("content_type", &self.content_type)
+            .field("content_disposition", &self.content_disposition)
+            .field("encoding", &self.encoding)
+            .finish()
+    }
+}
+
+#[cfg(not(feature = "experimental-io-uring"))]
+pub(crate) use std::fs::File;
+#[cfg(feature = "experimental-io-uring")]
+pub(crate) use tokio_uring::fs::File;
+
 impl NamedFile {
    /// Creates an instance from a previously opened file.
    ///
@@ -85,8 +120,7 @@ impl NamedFile {
    /// `ContentDisposition` headers.
    ///
    /// # Examples
-    ///
-    /// ```
+    /// ```ignore
    /// use actix_files::NamedFile;
    /// use std::io::{self, Write};
    /// use std::env;
@@ -147,7 +181,30 @@ impl NamedFile {
            (ct, cd)
        };

-        let md = file.metadata()?;
+        let md = {
+            #[cfg(not(feature = "experimental-io-uring"))]
+            {
+                file.metadata()?
+            }
+
+            #[cfg(feature = "experimental-io-uring")]
+            {
+                use std::os::unix::prelude::{AsRawFd, FromRawFd};
+
+                let fd = file.as_raw_fd();
+
+                // SAFETY: fd is borrowed and lives longer than the unsafe block
+                unsafe {
+                    let file = std::fs::File::from_raw_fd(fd);
+                    let md = file.metadata();
+                    // SAFETY: forget the fd before exiting block in success or error case but don't
+                    // run destructor (that would close file handle)
+                    std::mem::forget(file);
+                    md?
+                }
+            }
+        };
+
        let modified = md.modified().ok();
        let encoding = None;

@@ -164,17 +221,45 @@ impl NamedFile {
        })
    }

+    #[cfg(not(feature = "experimental-io-uring"))]
    /// Attempts to open a file in read-only mode.
    ///
    /// # Examples
-    ///
    /// ```
    /// use actix_files::NamedFile;
-    ///
    /// let file = NamedFile::open("foo.txt");
    /// ```
    pub fn open<P: AsRef<Path>>(path: P) -> io::Result<NamedFile> {
-        Self::from_file(File::open(&path)?, path)
+        let file = File::open(&path)?;
+        Self::from_file(file, path)
+    }
+
+    /// Attempts to open a file asynchronously in read-only mode.
+    ///
+    /// When the `experimental-io-uring` crate feature is enabled, this will be async.
+    /// Otherwise, it will be just like [`open`][Self::open].
+    ///
+    /// # Examples
+    /// ```
+    /// use actix_files::NamedFile;
+    /// # async fn open() {
+    /// let file = NamedFile::open_async("foo.txt").await.unwrap();
+    /// # }
+    /// ```
+    pub async fn open_async<P: AsRef<Path>>(path: P) -> io::Result<NamedFile> {
+        let file = {
+            #[cfg(not(feature = "experimental-io-uring"))]
+            {
+                File::open(&path)?
+            }
+
+            #[cfg(feature = "experimental-io-uring")]
+            {
+                File::open(&path).await?
+            }
+        };
+
+        Self::from_file(file, path)
    }

    /// Returns reference to the underlying `File` object.
@@ -186,13 +271,12 @@ impl NamedFile {
    /// Retrieve the path of this file.
    ///
    /// # Examples
-    ///
    /// ```
    /// # use std::io;
    /// use actix_files::NamedFile;
    ///
-    /// # fn path() -> io::Result<()> {
-    /// let file = NamedFile::open("test.txt")?;
+    /// # async fn path() -> io::Result<()> {
+    /// let file = NamedFile::open_async("test.txt").await?;
    /// assert_eq!(file.path().as_os_str(), "foo.txt");
    /// # Ok(())
    /// # }
@@ -332,7 +416,7 @@ impl NamedFile {
                res.encoding(current_encoding);
            }

-            let reader = ChunkedReadFile::new(self.md.len(), 0, self.file);
+            let reader = super::chunked::new_chunked_read(self.md.len(), 0, self.file);

            return res.streaming(reader);
        }
@@ -443,10 +527,10 @@ impl NamedFile {
        if precondition_failed {
            return resp.status(StatusCode::PRECONDITION_FAILED).finish();
        } else if not_modified {
-            return resp.status(StatusCode::NOT_MODIFIED).finish();
+            return resp.status(StatusCode::NOT_MODIFIED).body(AnyBody::None);
        }

-        let reader = ChunkedReadFile::new(length, offset, self.file);
+        let reader = super::chunked::new_chunked_read(length, offset, self.file);

        if offset != 0 || length != self.md.len() {
            resp.status(StatusCode::PARTIAL_CONTENT);
@@ -456,20 +540,6 @@ impl NamedFile {
    }
 }

-impl Deref for NamedFile {
-    type Target = File;
-
-    fn deref(&self) -> &File {
-        &self.file
-    }
-}
-
-impl DerefMut for NamedFile {
-    fn deref_mut(&mut self) -> &mut File {
-        &mut self.file
-    }
-}
-
 /// Returns true if `req` has no `If-Match` header or one which matches `etag`.
 fn any_match(etag: Option<&header::EntityTag>, req: &HttpRequest) -> bool {
    match req.get_header::<header::IfMatch>() {
@@ -510,6 +580,20 @@ fn none_match(etag: Option<&header::EntityTag>, req: &HttpRequest) -> bool {
    }
 }

+impl Deref for NamedFile {
+    type Target = File;
+
+    fn deref(&self) -> &Self::Target {
+        &self.file
+    }
+}
+
+impl DerefMut for NamedFile {
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        &mut self.file
+    }
+}
+
 impl Responder for NamedFile {
    fn respond_to(self, req: &HttpRequest) -> HttpResponse {
        self.into_response(req)
@@ -520,14 +604,16 @@ impl ServiceFactory<ServiceRequest> for NamedFile {
    type Response = ServiceResponse;
    type Error = Error;
    type Config = ();
-    type InitError = ();
    type Service = NamedFileService;
-    type Future = Ready<Result<Self::Service, ()>>;
+    type InitError = ();
+    type Future = LocalBoxFuture<'static, Result<Self::Service, Self::InitError>>;

    fn new_service(&self, _: ()) -> Self::Future {
-        ok(NamedFileService {
+        let service = NamedFileService {
            path: self.path.clone(),
-        })
+        };
+
+        Box::pin(async move { Ok(service) })
    }
 }

@@ -540,18 +626,19 @@ pub struct NamedFileService {
 impl Service<ServiceRequest> for NamedFileService {
    type Response = ServiceResponse;
    type Error = Error;
-    type Future = Ready<Result<Self::Response, Self::Error>>;
+    type Future = LocalBoxFuture<'static, Result<Self::Response, Self::Error>>;

    actix_service::always_ready!();

    fn call(&self, req: ServiceRequest) -> Self::Future {
        let (req, _) = req.into_parts();
-        ready(
-            NamedFile::open(&self.path)
-                .map_err(|e| e.into())
-                .map(|f| f.into_response(&req))
-                .map(|res| ServiceResponse::new(req, res)),
-        )
+
+        let path = self.path.clone();
+        Box::pin(async move {
+            let file = NamedFile::open_async(path).await?;
+            let res = file.into_response(&req);
+            Ok(ServiceResponse::new(req, res))
+        })
    }
 }

--- a/actix-files/src/path_buf.rs
+++ b/actix-files/src/path_buf.rs
@@ -1,14 +1,14 @@
 use std::{
+    future::{ready, Ready},
    path::{Path, PathBuf},
    str::FromStr,
 };

-use actix_utils::future::{ready, Ready};
 use actix_web::{dev::Payload, FromRequest, HttpRequest};

 use crate::error::UriSegmentError;

-#[derive(Debug)]
+#[derive(Debug, PartialEq, Eq)]
 pub(crate) struct PathBufWrap(PathBuf);

 impl FromStr for PathBufWrap {
@@ -21,6 +21,8 @@ impl FromStr for PathBufWrap {

 impl PathBufWrap {
    /// Parse a path, giving the choice of allowing hidden files to be considered valid segments.
+    ///
+    /// Path traversal is guarded by this method.
    pub fn parse_path(path: &str, hidden_files: bool) -> Result<Self, UriSegmentError> {
        let mut buf = PathBuf::new();

@@ -115,4 +117,24 @@ mod tests {
            PathBuf::from_iter(vec!["test", ".tt"])
        );
    }
+
+    #[test]
+    fn path_traversal() {
+        assert_eq!(
+            PathBufWrap::parse_path("/../README.md", false).unwrap().0,
+            PathBuf::from_iter(vec!["README.md"])
+        );
+
+        assert_eq!(
+            PathBufWrap::parse_path("/../README.md", true).unwrap().0,
+            PathBuf::from_iter(vec!["README.md"])
+        );
+
+        assert_eq!(
+            PathBufWrap::parse_path("/../../../../../../../../../../etc/passwd", false)
+                .unwrap()
+                .0,
+            PathBuf::from_iter(vec!["etc/passwd"])
+        );
+    }
 }
--- a/actix-files/src/service.rs
+++ b/actix-files/src/service.rs
@@ -1,7 +1,6 @@
-use std::{fmt, io, path::PathBuf, rc::Rc};
+use std::{fmt, io, ops::Deref, path::PathBuf, rc::Rc};

 use actix_service::Service;
-use actix_utils::future::ok;
 use actix_web::{
    dev::{ServiceRequest, ServiceResponse},
    error::Error,
@@ -17,7 +16,18 @@ use crate::{
 };

 /// Assembled file serving service.
-pub struct FilesService {
+#[derive(Clone)]
+pub struct FilesService(pub(crate) Rc<FilesServiceInner>);
+
+impl Deref for FilesService {
+    type Target = FilesServiceInner;
+
+    fn deref(&self) -> &Self::Target {
+        &*self.0
+    }
+}
+
+pub struct FilesServiceInner {
    pub(crate) directory: PathBuf,
    pub(crate) index: Option<String>,
    pub(crate) show_index: bool,
@@ -31,20 +41,50 @@ pub struct FilesService {
    pub(crate) hidden_files: bool,
 }

+impl fmt::Debug for FilesServiceInner {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        f.write_str("FilesServiceInner")
+    }
+}
+
 impl FilesService {
-    fn handle_err(
+    async fn handle_err(
        &self,
        err: io::Error,
        req: ServiceRequest,
-    ) -> LocalBoxFuture<'static, Result<ServiceResponse, Error>> {
+    ) -> Result<ServiceResponse, Error> {
        log::debug!("error handling {}: {}", req.path(), err);

        if let Some(ref default) = self.default {
-            Box::pin(default.call(req))
+            default.call(req).await
        } else {
-            Box::pin(ok(req.error_response(err)))
+            Ok(req.error_response(err))
        }
    }
+
+    fn serve_named_file(
+        &self,
+        req: ServiceRequest,
+        mut named_file: NamedFile,
+    ) -> ServiceResponse {
+        if let Some(ref mime_override) = self.mime_override {
+            let new_disposition = mime_override(&named_file.content_type.type_());
+            named_file.content_disposition.disposition = new_disposition;
+        }
+        named_file.flags = self.file_flags;
+
+        let (req, _) = req.into_parts();
+        let res = named_file.into_response(&req);
+        ServiceResponse::new(req, res)
+    }
+
+    fn show_index(&self, req: ServiceRequest, path: PathBuf) -> ServiceResponse {
+        let dir = Directory::new(self.directory.clone(), path);
+
+        let (req, _) = req.into_parts();
+
+        (self.renderer)(&dir, &req).unwrap_or_else(|e| ServiceResponse::from_err(e, req))
+    }
 }

 impl fmt::Debug for FilesService {
@@ -56,7 +96,7 @@ impl fmt::Debug for FilesService {
 impl Service<ServiceRequest> for FilesService {
    type Response = ServiceResponse;
    type Error = Error;
-    type Future = LocalBoxFuture<'static, Result<ServiceResponse, Error>>;
+    type Future = LocalBoxFuture<'static, Result<Self::Response, Self::Error>>;

    actix_service::always_ready!();

@@ -69,103 +109,87 @@ impl Service<ServiceRequest> for FilesService {
            matches!(*req.method(), Method::HEAD | Method::GET)
        };

-        if !is_method_valid {
-            return Box::pin(ok(req.into_response(
-                actix_web::HttpResponse::MethodNotAllowed()
-                    .insert_header(header::ContentType(mime::TEXT_PLAIN_UTF_8))
-                    .body("Request did not meet this resource's requirements."),
-            )));
-        }
+        let this = self.clone();

-        let real_path =
-            match PathBufWrap::parse_path(req.match_info().path(), self.hidden_files) {
-                Ok(item) => item,
-                Err(e) => return Box::pin(ok(req.error_response(e))),
-            };
+        Box::pin(async move {
+            if !is_method_valid {
+                return Ok(req.into_response(
+                    actix_web::HttpResponse::MethodNotAllowed()
+                        .insert_header(header::ContentType(mime::TEXT_PLAIN_UTF_8))
+                        .body("Request did not meet this resource's requirements."),
+                ));
+            }

-        if let Some(filter) = &self.path_filter {
-            if !filter(real_path.as_ref(), req.head()) {
-                if let Some(ref default) = self.default {
-                    return Box::pin(default.call(req));
-                } else {
-                    return Box::pin(ok(
-                        req.into_response(actix_web::HttpResponse::NotFound().finish())
+            let real_path =
+                match PathBufWrap::parse_path(req.match_info().path(), this.hidden_files) {
+                    Ok(item) => item,
+                    Err(e) => return Ok(req.error_response(e)),
+                };
+
+            if let Some(filter) = &this.path_filter {
+                if !filter(real_path.as_ref(), req.head()) {
+                    if let Some(ref default) = this.default {
+                        return default.call(req).await;
+                    } else {
+                        return Ok(
+                            req.into_response(actix_web::HttpResponse::NotFound().finish())
+                        );
+                    }
+                }
+            }
+
+            // full file path
+            let path = this.directory.join(&real_path);
+            if let Err(err) = path.canonicalize() {
+                return this.handle_err(err, req).await;
+            }
+
+            if path.is_dir() {
+                if this.redirect_to_slash
+                    && !req.path().ends_with('/')
+                    && (this.index.is_some() || this.show_index)
+                {
+                    let redirect_to = format!("{}/", req.path());
+
+                    return Ok(req.into_response(
+                        HttpResponse::Found()
+                            .insert_header((header::LOCATION, redirect_to))
+                            .finish(),
                    ));
                }
-            }
-        }

-        // full file path
-        let path = self.directory.join(&real_path);
-        if let Err(err) = path.canonicalize() {
-            return Box::pin(self.handle_err(err, req));
-        }
-
-        if path.is_dir() {
-            if self.redirect_to_slash
-                && !req.path().ends_with('/')
-                && (self.index.is_some() || self.show_index)
-            {
-                let redirect_to = format!("{}/", req.path());
-
-                return Box::pin(ok(req.into_response(
-                    HttpResponse::Found()
-                        .insert_header((header::LOCATION, redirect_to))
-                        .finish(),
-                )));
-            }
-
-            let serve_named_file = |req: ServiceRequest, mut named_file: NamedFile| {
-                if let Some(ref mime_override) = self.mime_override {
-                    let new_disposition = mime_override(&named_file.content_type.type_());
-                    named_file.content_disposition.disposition = new_disposition;
-                }
-                named_file.flags = self.file_flags;
-
-                let (req, _) = req.into_parts();
-                let res = named_file.into_response(&req);
-                Box::pin(ok(ServiceResponse::new(req, res)))
-            };
-
-            let show_index = |req: ServiceRequest| {
-                let dir = Directory::new(self.directory.clone(), path.clone());
-
-                let (req, _) = req.into_parts();
-                let x = (self.renderer)(&dir, &req);
-
-                Box::pin(match x {
-                    Ok(resp) => ok(resp),
-                    Err(err) => ok(ServiceResponse::from_err(err, req)),
-                })
-            };
-
-            match self.index {
-                Some(ref index) => match NamedFile::open(path.join(index)) {
-                    Ok(named_file) => serve_named_file(req, named_file),
-                    Err(_) if self.show_index => show_index(req),
-                    Err(err) => self.handle_err(err, req),
-                },
-                None if self.show_index => show_index(req),
-                _ => Box::pin(ok(ServiceResponse::from_err(
-                    FilesError::IsDirectory,
-                    req.into_parts().0,
-                ))),
-            }
-        } else {
-            match NamedFile::open(path) {
-                Ok(mut named_file) => {
-                    if let Some(ref mime_override) = self.mime_override {
-                        let new_disposition = mime_override(&named_file.content_type.type_());
-                        named_file.content_disposition.disposition = new_disposition;
+                match this.index {
+                    Some(ref index) => {
+                        let named_path = path.join(index);
+                        match NamedFile::open_async(named_path).await {
+                            Ok(named_file) => Ok(this.serve_named_file(req, named_file)),
+                            Err(_) if this.show_index => Ok(this.show_index(req, path)),
+                            Err(err) => this.handle_err(err, req).await,
+                        }
                    }
-                    named_file.flags = self.file_flags;
-
-                    let (req, _) = req.into_parts();
-                    let res = named_file.into_response(&req);
-                    Box::pin(ok(ServiceResponse::new(req, res)))
+                    None if this.show_index => Ok(this.show_index(req, path)),
+                    _ => Ok(ServiceResponse::from_err(
+                        FilesError::IsDirectory,
+                        req.into_parts().0,
+                    )),
+                }
+            } else {
+                match NamedFile::open_async(&path).await {
+                    Ok(mut named_file) => {
+                        if let Some(ref mime_override) = this.mime_override {
+                            let new_disposition =
+                                mime_override(&named_file.content_type.type_());
+                            named_file.content_disposition.disposition = new_disposition;
+                        }
+                        named_file.flags = this.file_flags;
+
+                        let (req, _) = req.into_parts();
+                        let res = named_file.into_response(&req);
+                        Ok(ServiceResponse::new(req, res))
+                    }
+                    Err(err) => this.handle_err(err, req).await,
                }
-                Err(err) => self.handle_err(err, req),
            }
-        }
+        })
    }
 }
--- a/actix-files/tests/traversal.rs
+++ b/actix-files/tests/traversal.rs
@@ -0,0 +1,27 @@
+use actix_files::Files;
+use actix_web::{
+    http::StatusCode,
+    test::{self, TestRequest},
+    App,
+};
+
+#[actix_rt::test]
+async fn test_directory_traversal_prevention() {
+    let srv = test::init_service(App::new().service(Files::new("/", "./tests"))).await;
+
+    let req =
+        TestRequest::with_uri("/../../../../../../../../../../../etc/passwd").to_request();
+    let res = test::call_service(&srv, req).await;
+    assert_eq!(res.status(), StatusCode::NOT_FOUND);
+
+    let req = TestRequest::with_uri(
+        "/%2e%2e/%2e%2e/%2e%2e/%2e%2e/%2e%2e/%2e%2e/%2e%2e/%2e%2e/%2e%2e/%2e%2e/etc/passwd",
+    )
+    .to_request();
+    let res = test::call_service(&srv, req).await;
+    assert_eq!(res.status(), StatusCode::NOT_FOUND);
+
+    let req = TestRequest::with_uri("/%00/etc/passwd%00").to_request();
+    let res = test::call_service(&srv, req).await;
+    assert_eq!(res.status(), StatusCode::NOT_FOUND);
+}
--- a/actix-http-test/CHANGES.md
+++ b/actix-http-test/CHANGES.md
@@ -3,6 +3,12 @@
 ## Unreleased - 2021-xx-xx


+## 3.0.0-beta.7 - 2021-11-22
+* Fix compatibility with experimental `io-uring` feature of `actix-rt`. [#2408]
+
+[#2408]: https://github.com/actix/actix-web/pull/2408
+
+
 ## 3.0.0-beta.6 - 2021-11-15
 * `TestServer::stop` is now async and will wait for the server and system to shutdown. [#2442]
 * Update `actix-server` to `2.0.0-beta.9`. [#2442]
--- a/actix-http-test/Cargo.toml
+++ b/actix-http-test/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "actix-http-test"
-version = "3.0.0-beta.6"
+version = "3.0.0-beta.7"
 authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
 description = "Various helpers for Actix applications to use during testing"
 keywords = ["http", "web", "framework", "async", "futures"]
@@ -30,12 +30,12 @@ openssl = ["tls-openssl", "awc/openssl"]

 [dependencies]
 actix-service = "2.0.0"
-actix-codec = "0.4.0"
-actix-tls = "3.0.0-beta.7"
+actix-codec = "0.4.1"
+actix-tls = "3.0.0-beta.9"
 actix-utils = "3.0.0"
 actix-rt = "2.2"
 actix-server = "2.0.0-beta.9"
-awc = { version = "3.0.0-beta.10", default-features = false }
+awc = { version = "3.0.0-beta.11", default-features = false }

 base64 = "0.13"
 bytes = "1"
@@ -52,4 +52,4 @@ tokio = { version = "1.2", features = ["sync"] }

 [dev-dependencies]
 actix-web = { version = "4.0.0-beta.11", default-features = false, features = ["cookies"] }
-actix-http = "3.0.0-beta.12"
+actix-http = "3.0.0-beta.13"
--- a/actix-http-test/README.md
+++ b/actix-http-test/README.md
@@ -3,11 +3,11 @@
 > 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.6)](https://docs.rs/actix-http-test/3.0.0-beta.6)
+[![Documentation](https://docs.rs/actix-http-test/badge.svg?version=3.0.0-beta.7)](https://docs.rs/actix-http-test/3.0.0-beta.7)
 [![Version](https://img.shields.io/badge/rustc-1.52+-ab6000.svg)](https://blog.rust-lang.org/2021/05/06/Rust-1.52.0.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.6/status.svg)](https://deps.rs/crate/actix-http-test/3.0.0-beta.6)
+[![Dependency Status](https://deps.rs/crate/actix-http-test/3.0.0-beta.7/status.svg)](https://deps.rs/crate/actix-http-test/3.0.0-beta.7)
 [![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)

--- a/actix-http-test/src/lib.rs
+++ b/actix-http-test/src/lib.rs
@@ -21,16 +21,15 @@ use http::Method;
 use socket2::{Domain, Protocol, Socket, Type};
 use tokio::sync::mpsc;

-/// Start test server
+/// Start test server.
 ///
-/// `TestServer` is very simple test server that simplify process of writing
-/// integration tests cases for actix web applications.
+/// `TestServer` is very simple test server that simplify process of writing integration tests cases
+/// for HTTP applications.
 ///
 /// # Examples
-///
-/// ```
+/// ```no_run
 /// use actix_http::HttpService;
-/// use actix_http_test::TestServer;
+/// use actix_http_test::test_server;
 /// use actix_web::{web, App, HttpResponse, Error};
 ///
 /// async fn my_handler() -> Result<HttpResponse, Error> {
@@ -39,10 +38,9 @@ use tokio::sync::mpsc;
 ///
 /// #[actix_web::test]
 /// async fn test_example() {
-///     let mut srv = TestServer::start(
-///         || HttpService::new(
-///             App::new().service(
-///                 web::resource("/").to(my_handler))
+///     let mut srv = TestServer::start(||
+///         HttpService::new(
+///             App::new().service(web::resource("/").to(my_handler))
 ///         )
 ///     );
 ///
@@ -66,25 +64,24 @@ pub async fn test_server_with_addr<F: ServiceFactory<TcpStream>>(

    // run server in separate thread
    thread::spawn(move || {
-        let sys = System::new();
-        let local_addr = tcp.local_addr().unwrap();
+        System::new().block_on(async move {
+            let local_addr = tcp.local_addr().unwrap();

-        let srv = Server::build()
-            .workers(1)
-            .disable_signals()
-            .listen("test", tcp, factory)
-            .expect("test server could not be created");
+            let srv = Server::build()
+                .workers(1)
+                .disable_signals()
+                .system_exit()
+                .listen("test", tcp, factory)
+                .expect("test server could not be created");

-        let srv = srv.run();
-        started_tx
-            .send((System::current(), srv.handle(), local_addr))
-            .unwrap();
+            let srv = srv.run();
+            started_tx
+                .send((System::current(), srv.handle(), local_addr))
+                .unwrap();

-        // drive server loop
-        sys.block_on(srv).unwrap();
-
-        // start system event loop
-        sys.run().unwrap();
+            // drive server loop
+            srv.await.unwrap();
+        });

        // notify TestServer that server and system have shut down
        // all thread managed resources should be dropped at this point
@@ -273,12 +270,12 @@ impl TestServer {
        self.client.headers()
    }

-    /// Gracefully stop HTTP server.
+    /// Stop HTTP server.
    ///
-    /// Waits for spawned `Server` and `System` to shutdown gracefully.
+    /// Waits for spawned `Server` and `System` to (force) shutdown.
    pub async fn stop(&mut self) {
        // signal server to stop
-        self.server.stop(true).await;
+        self.server.stop(false).await;

        // also signal system to stop
        // though this is handled by `ServerBuilder::exit_system` too
--- a/actix-http/CHANGES.md
+++ b/actix-http/CHANGES.md
@@ -3,6 +3,32 @@
 ## Unreleased - 2021-xx-xx


+## 3.0.0-beta.13 - 2021-11-22
+### Added
+* `body::AnyBody::empty` for quickly creating an empty body. [#2446]
+* `body::AnyBody::none` for quickly creating a "none" body. [#2456]
+* `impl Clone` for `body::AnyBody<S> where S: Clone`. [#2448]
+* `body::AnyBody::into_boxed` for quickly converting to a type-erased, boxed body type. [#2448]
+
+### Changed
+* Rename `body::AnyBody::{Message => Body}`. [#2446]
+* Rename `body::AnyBody::{from_message => new_boxed}`. [#2448]
+* Rename `body::AnyBody::{from_slice => copy_from_slice}`. [#2448]
+* Rename `body::{BoxAnyBody => BoxBody}`. [#2448]
+* Change representation of `AnyBody` to include a type parameter in `Body` variant. Defaults to `BoxBody`. [#2448]
+* `Encoder::response` now returns `AnyBody<Encoder<B>>`. [#2448]
+
+### Removed
+* `body::AnyBody::Empty`; an empty body can now only be represented as a zero-length `Bytes` variant. [#2446]
+* `body::BodySize::Empty`; an empty body can now only be represented as a `Sized(0)` variant. [#2446]
+* `EncoderError::Boxed`; it is no longer required. [#2446]
+* `body::ResponseBody`; is function is replaced by the new `body::AnyBody` enum. [#2446]
+
+[#2446]: https://github.com/actix/actix-web/pull/2446
+[#2448]: https://github.com/actix/actix-web/pull/2448
+[#2456]: https://github.com/actix/actix-web/pull/2456
+
+
 ## 3.0.0-beta.12 - 2021-11-15
 ### Changed
 * Update `actix-server` to `2.0.0-beta.9`. [#2442]
--- a/actix-http/Cargo.toml
+++ b/actix-http/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "actix-http"
-version = "3.0.0-beta.12"
+version = "3.0.0-beta.13"
 authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
 description = "HTTP primitives for the Actix ecosystem"
 keywords = ["actix", "http", "framework", "async", "futures"]
@@ -43,7 +43,7 @@ __compress = []

 [dependencies]
 actix-service = "2.0.0"
-actix-codec = "0.4.0"
+actix-codec = "0.4.1"
 actix-utils = "3.0.0"
 actix-rt = "2.2"

@@ -73,25 +73,26 @@ sha-1 = "0.9"
 smallvec = "1.6.1"

 # tls
-actix-tls = { version = "3.0.0-beta.7", default-features = false, optional = true }
+actix-tls = { version = "3.0.0-beta.9", default-features = false, optional = true }

 # compression
 brotli2 = { version="0.3.2", optional = true }
 flate2 = { version = "1.0.13", optional = true }
-zstd = { version = "0.7", optional = true }
+zstd = { version = "0.9", optional = true }

 [dev-dependencies]
 actix-server = "2.0.0-beta.9"
-actix-http-test = { version = "3.0.0-beta.6", features = ["openssl"] }
-actix-tls = { version = "3.0.0-beta.7", features = ["openssl"] }
+actix-http-test = { version = "3.0.0-beta.7", features = ["openssl"] }
+actix-tls = { version = "3.0.0-beta.9", features = ["openssl"] }
 async-stream = "0.3"
 criterion = { version = "0.3", features = ["html_reports"] }
-env_logger = "0.8"
+env_logger = "0.9"
 rcgen = "0.8"
 regex = "1.3"
 rustls-pemfile = "0.2"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
+static_assertions = "1"
 tls-openssl = { package = "openssl", version = "0.10.9" }
 tls-rustls = { package = "rustls", version = "0.20.0" }
 tokio = { version = "1.2", features = ["net", "rt"] }
--- a/actix-http/README.md
+++ b/actix-http/README.md
@@ -3,11 +3,11 @@
 > 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.12)](https://docs.rs/actix-http/3.0.0-beta.12)
+[![Documentation](https://docs.rs/actix-http/badge.svg?version=3.0.0-beta.13)](https://docs.rs/actix-http/3.0.0-beta.13)
 [![Version](https://img.shields.io/badge/rustc-1.52+-ab6000.svg)](https://blog.rust-lang.org/2021/05/06/Rust-1.52.0.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.12/status.svg)](https://deps.rs/crate/actix-http/3.0.0-beta.12)
+[![dependency status](https://deps.rs/crate/actix-http/3.0.0-beta.13/status.svg)](https://deps.rs/crate/actix-http/3.0.0-beta.13)
 [![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)

--- a/actix-http/examples/echo2.rs
+++ b/actix-http/examples/echo2.rs
@@ -1,12 +1,12 @@
 use std::io;

-use actix_http::{body::Body, http::HeaderValue, http::StatusCode};
+use actix_http::{body::AnyBody, http::HeaderValue, http::StatusCode};
 use actix_http::{Error, HttpService, Request, Response};
 use actix_server::Server;
 use bytes::BytesMut;
 use futures_util::StreamExt as _;

-async fn handle_request(mut req: Request) -> Result<Response<Body>, Error> {
+async fn handle_request(mut req: Request) -> Result<Response<AnyBody>, Error> {
    let mut body = BytesMut::new();
    while let Some(item) = req.payload().next().await {
        body.extend_from_slice(&item?)
--- a/actix-http/src/body/body.rs
+++ b/actix-http/src/body/body.rs
@@ -8,53 +8,94 @@ use std::{

 use bytes::{Bytes, BytesMut};
 use futures_core::Stream;
+use pin_project::pin_project;

 use crate::error::Error;

 use super::{BodySize, BodyStream, MessageBody, MessageBodyMapErr, SizedStream};

+#[deprecated(since = "4.0.0", note = "Renamed to `AnyBody`.")]
 pub type Body = AnyBody;

 /// Represents various types of HTTP message body.
-pub enum AnyBody {
+#[pin_project(project = AnyBodyProj)]
+#[derive(Clone)]
+pub enum AnyBody<B = BoxBody> {
    /// Empty response. `Content-Length` header is not set.
    None,

-    /// Zero sized response body. `Content-Length` header is set to `0`.
-    Empty,
-
-    /// Specific response body.
+    /// Complete, in-memory response body.
    Bytes(Bytes),

-    /// Generic message body.
-    Message(BoxAnyBody),
+    /// Generic / Other message body.
+    Body(#[pin] B),
 }

 impl AnyBody {
-    /// Create body from slice (copy)
-    pub fn from_slice(s: &[u8]) -> Self {
-        Self::Bytes(Bytes::copy_from_slice(s))
+    /// Constructs a "body" representing an empty response.
+    pub fn none() -> Self {
+        Self::None
    }

-    /// Create body from generic message body.
-    pub fn from_message<B>(body: B) -> Self
+    /// Constructs a new, 0-length body.
+    pub fn empty() -> Self {
+        Self::Bytes(Bytes::new())
+    }
+
+    /// Create boxed body from generic message body.
+    pub fn new_boxed<B>(body: B) -> Self
    where
        B: MessageBody + 'static,
        B::Error: Into<Box<dyn StdError + 'static>>,
    {
-        Self::Message(BoxAnyBody::from_body(body))
+        Self::Body(BoxBody::from_body(body))
+    }
+
+    /// Constructs new `AnyBody` instance from a slice of bytes by copying it.
+    ///
+    /// If your bytes container is owned, it may be cheaper to use a `From` impl.
+    pub fn copy_from_slice(s: &[u8]) -> Self {
+        Self::Bytes(Bytes::copy_from_slice(s))
+    }
+
+    #[doc(hidden)]
+    #[deprecated(since = "4.0.0", note = "Renamed to `copy_from_slice`.")]
+    pub fn from_slice(s: &[u8]) -> Self {
+        Self::Bytes(Bytes::copy_from_slice(s))
    }
 }

-impl MessageBody for AnyBody {
+impl<B> AnyBody<B>
+where
+    B: MessageBody + 'static,
+    B::Error: Into<Box<dyn StdError + 'static>>,
+{
+    /// Create body from generic message body.
+    pub fn new(body: B) -> Self {
+        Self::Body(body)
+    }
+
+    pub fn into_boxed(self) -> AnyBody {
+        match self {
+            Self::None => AnyBody::None,
+            Self::Bytes(bytes) => AnyBody::Bytes(bytes),
+            Self::Body(body) => AnyBody::new_boxed(body),
+        }
+    }
+}
+
+impl<B> MessageBody for AnyBody<B>
+where
+    B: MessageBody,
+    B::Error: Into<Box<dyn StdError>> + 'static,
+{
    type Error = Error;

    fn size(&self) -> BodySize {
        match self {
            AnyBody::None => BodySize::None,
-            AnyBody::Empty => BodySize::Empty,
            AnyBody::Bytes(ref bin) => BodySize::Sized(bin.len() as u64),
-            AnyBody::Message(ref body) => body.size(),
+            AnyBody::Body(ref body) => body.size(),
        }
    }

@@ -62,10 +103,9 @@ impl MessageBody for AnyBody {
        self: Pin<&mut Self>,
        cx: &mut Context<'_>,
    ) -> Poll<Option<Result<Bytes, Self::Error>>> {
-        match self.get_mut() {
-            AnyBody::None => Poll::Ready(None),
-            AnyBody::Empty => Poll::Ready(None),
-            AnyBody::Bytes(ref mut bin) => {
+        match self.project() {
+            AnyBodyProj::None => Poll::Ready(None),
+            AnyBodyProj::Bytes(bin) => {
                let len = bin.len();
                if len == 0 {
                    Poll::Ready(None)
@@ -74,8 +114,7 @@ impl MessageBody for AnyBody {
                }
            }

-            AnyBody::Message(body) => body
-                .as_pin_mut()
+            AnyBodyProj::Body(body) => body
                .poll_next(cx)
                .map_err(|err| Error::new_body().with_cause(err)),
        }
@@ -83,80 +122,88 @@ impl MessageBody for AnyBody {
 }

 impl PartialEq for AnyBody {
-    fn eq(&self, other: &Body) -> bool {
+    fn eq(&self, other: &AnyBody) -> bool {
        match *self {
            AnyBody::None => matches!(*other, AnyBody::None),
-            AnyBody::Empty => matches!(*other, AnyBody::Empty),
            AnyBody::Bytes(ref b) => match *other {
                AnyBody::Bytes(ref b2) => b == b2,
                _ => false,
            },
-            AnyBody::Message(_) => false,
+            AnyBody::Body(_) => false,
        }
    }
 }

-impl fmt::Debug for AnyBody {
+impl<S: fmt::Debug> fmt::Debug for AnyBody<S> {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        match *self {
            AnyBody::None => write!(f, "AnyBody::None"),
-            AnyBody::Empty => write!(f, "AnyBody::Empty"),
-            AnyBody::Bytes(ref b) => write!(f, "AnyBody::Bytes({:?})", b),
-            AnyBody::Message(_) => write!(f, "AnyBody::Message(_)"),
+            AnyBody::Bytes(ref bytes) => write!(f, "AnyBody::Bytes({:?})", bytes),
+            AnyBody::Body(ref stream) => write!(f, "AnyBody::Message({:?})", stream),
        }
    }
 }

-impl From<&'static str> for AnyBody {
-    fn from(s: &'static str) -> Body {
-        AnyBody::Bytes(Bytes::from_static(s.as_ref()))
+impl<B> From<&'static str> for AnyBody<B> {
+    fn from(string: &'static str) -> Self {
+        Self::Bytes(Bytes::from_static(string.as_ref()))
    }
 }

-impl From<&'static [u8]> for AnyBody {
-    fn from(s: &'static [u8]) -> Body {
-        AnyBody::Bytes(Bytes::from_static(s))
+impl<B> From<&'static [u8]> for AnyBody<B> {
+    fn from(bytes: &'static [u8]) -> Self {
+        Self::Bytes(Bytes::from_static(bytes))
    }
 }

-impl From<Vec<u8>> for AnyBody {
-    fn from(vec: Vec<u8>) -> Body {
-        AnyBody::Bytes(Bytes::from(vec))
+impl<B> From<Vec<u8>> for AnyBody<B> {
+    fn from(vec: Vec<u8>) -> Self {
+        Self::Bytes(Bytes::from(vec))
    }
 }

-impl From<String> for AnyBody {
-    fn from(s: String) -> Body {
-        s.into_bytes().into()
+impl<B> From<String> for AnyBody<B> {
+    fn from(string: String) -> Self {
+        Self::Bytes(Bytes::from(string))
    }
 }

-impl From<&'_ String> for AnyBody {
-    fn from(s: &String) -> Body {
-        AnyBody::Bytes(Bytes::copy_from_slice(AsRef::<[u8]>::as_ref(&s)))
+impl<B> From<&'_ String> for AnyBody<B> {
+    fn from(string: &String) -> Self {
+        Self::Bytes(Bytes::copy_from_slice(AsRef::<[u8]>::as_ref(&string)))
    }
 }

-impl From<Cow<'_, str>> for AnyBody {
-    fn from(s: Cow<'_, str>) -> Body {
-        match s {
-            Cow::Owned(s) => AnyBody::from(s),
+impl<B> From<Cow<'_, str>> for AnyBody<B> {
+    fn from(string: Cow<'_, str>) -> Self {
+        match string {
+            Cow::Owned(s) => Self::from(s),
            Cow::Borrowed(s) => {
-                AnyBody::Bytes(Bytes::copy_from_slice(AsRef::<[u8]>::as_ref(s)))
+                Self::Bytes(Bytes::copy_from_slice(AsRef::<[u8]>::as_ref(s)))
            }
        }
    }
 }

-impl From<Bytes> for AnyBody {
-    fn from(s: Bytes) -> Body {
-        AnyBody::Bytes(s)
+impl<B> From<Bytes> for AnyBody<B> {
+    fn from(bytes: Bytes) -> Self {
+        Self::Bytes(bytes)
    }
 }

-impl From<BytesMut> for AnyBody {
-    fn from(s: BytesMut) -> Body {
-        AnyBody::Bytes(s.freeze())
+impl<B> From<BytesMut> for AnyBody<B> {
+    fn from(bytes: BytesMut) -> Self {
+        Self::Bytes(bytes.freeze())
+    }
+}
+
+impl<S, E> From<SizedStream<S>> for AnyBody<SizedStream<S>>
+where
+    S: Stream<Item = Result<Bytes, E>> + 'static,
+    E: Into<Box<dyn StdError>> + 'static,
+{
+    fn from(stream: SizedStream<S>) -> Self {
+        AnyBody::new(stream)
    }
 }

@@ -165,8 +212,18 @@ where
    S: Stream<Item = Result<Bytes, E>> + 'static,
    E: Into<Box<dyn StdError>> + 'static,
 {
-    fn from(s: SizedStream<S>) -> Body {
-        AnyBody::from_message(s)
+    fn from(stream: SizedStream<S>) -> Self {
+        AnyBody::new_boxed(stream)
+    }
+}
+
+impl<S, E> From<BodyStream<S>> for AnyBody<BodyStream<S>>
+where
+    S: Stream<Item = Result<Bytes, E>> + 'static,
+    E: Into<Box<dyn StdError>> + 'static,
+{
+    fn from(stream: BodyStream<S>) -> Self {
+        AnyBody::new(stream)
    }
 }

@@ -175,15 +232,15 @@ where
    S: Stream<Item = Result<Bytes, E>> + 'static,
    E: Into<Box<dyn StdError>> + 'static,
 {
-    fn from(s: BodyStream<S>) -> Body {
-        AnyBody::from_message(s)
+    fn from(stream: BodyStream<S>) -> Self {
+        AnyBody::new_boxed(stream)
    }
 }

 /// A boxed message body with boxed errors.
-pub struct BoxAnyBody(Pin<Box<dyn MessageBody<Error = Box<dyn StdError + 'static>>>>);
+pub struct BoxBody(Pin<Box<dyn MessageBody<Error = Box<dyn StdError>>>>);

-impl BoxAnyBody {
+impl BoxBody {
    /// Boxes a `MessageBody` and any errors it generates.
    pub fn from_body<B>(body: B) -> Self
    where
@@ -197,18 +254,18 @@ impl BoxAnyBody {
    /// Returns a mutable pinned reference to the inner message body type.
    pub fn as_pin_mut(
        &mut self,
-    ) -> Pin<&mut (dyn MessageBody<Error = Box<dyn StdError + 'static>>)> {
+    ) -> Pin<&mut (dyn MessageBody<Error = Box<dyn StdError>>)> {
        self.0.as_mut()
    }
 }

-impl fmt::Debug for BoxAnyBody {
+impl fmt::Debug for BoxBody {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        f.write_str("BoxAnyBody(dyn MessageBody)")
    }
 }

-impl MessageBody for BoxAnyBody {
+impl MessageBody for BoxBody {
    type Error = Error;

    fn size(&self) -> BodySize {
@@ -225,3 +282,52 @@ impl MessageBody for BoxAnyBody {
            .map_err(|err| Error::new_body().with_cause(err))
    }
 }
+
+#[cfg(test)]
+mod tests {
+    use std::marker::PhantomPinned;
+
+    use static_assertions::{assert_impl_all, assert_not_impl_all};
+
+    use super::*;
+    use crate::body::to_bytes;
+
+    struct PinType(PhantomPinned);
+
+    impl MessageBody for PinType {
+        type Error = crate::Error;
+
+        fn size(&self) -> BodySize {
+            unimplemented!()
+        }
+
+        fn poll_next(
+            self: Pin<&mut Self>,
+            _cx: &mut Context<'_>,
+        ) -> Poll<Option<Result<Bytes, Self::Error>>> {
+            unimplemented!()
+        }
+    }
+
+    assert_impl_all!(AnyBody<()>: MessageBody, fmt::Debug, Send, Sync, Unpin);
+    assert_impl_all!(AnyBody<AnyBody<()>>: MessageBody, fmt::Debug, Send, Sync, Unpin);
+    assert_impl_all!(AnyBody<Bytes>: MessageBody, fmt::Debug, Send, Sync, Unpin);
+    assert_impl_all!(AnyBody: MessageBody, fmt::Debug, Unpin);
+    assert_impl_all!(BoxBody: MessageBody, fmt::Debug, Unpin);
+    assert_impl_all!(AnyBody<PinType>: MessageBody);
+
+    assert_not_impl_all!(AnyBody: Send, Sync, Unpin);
+    assert_not_impl_all!(BoxBody: Send, Sync, Unpin);
+    assert_not_impl_all!(AnyBody<PinType>: Send, Sync, Unpin);
+
+    #[actix_rt::test]
+    async fn nested_boxed_body() {
+        let body = AnyBody::copy_from_slice(&[1, 2, 3]);
+        let boxed_body = BoxBody::from_body(BoxBody::from_body(body));
+
+        assert_eq!(
+            to_bytes(boxed_body).await.unwrap(),
+            Bytes::from(vec![1, 2, 3]),
+        );
+    }
+}
--- a/actix-http/src/body/body_stream.rs
+++ b/actix-http/src/body/body_stream.rs
@@ -75,10 +75,22 @@ mod tests {
    use derive_more::{Display, Error};
    use futures_core::ready;
    use futures_util::{stream, FutureExt as _};
+    use static_assertions::{assert_impl_all, assert_not_impl_all};

    use super::*;
    use crate::body::to_bytes;

+    assert_impl_all!(BodyStream<stream::Empty<Result<Bytes, crate::Error>>>: MessageBody);
+    assert_impl_all!(BodyStream<stream::Empty<Result<Bytes, &'static str>>>: MessageBody);
+    assert_impl_all!(BodyStream<stream::Repeat<Result<Bytes, &'static str>>>: MessageBody);
+    assert_impl_all!(BodyStream<stream::Empty<Result<Bytes, Infallible>>>: MessageBody);
+    assert_impl_all!(BodyStream<stream::Repeat<Result<Bytes, Infallible>>>: MessageBody);
+
+    assert_not_impl_all!(BodyStream<stream::Empty<Bytes>>: MessageBody);
+    assert_not_impl_all!(BodyStream<stream::Repeat<Bytes>>: MessageBody);
+    // crate::Error is not Clone
+    assert_not_impl_all!(BodyStream<stream::Repeat<Result<Bytes, crate::Error>>>: MessageBody);
+
    #[actix_rt::test]
    async fn skips_empty_chunks() {
        let body = BodyStream::new(stream::iter(
@@ -124,6 +136,30 @@ mod tests {
        assert!(matches!(to_bytes(body).await, Err(StreamErr)));
    }

+    #[actix_rt::test]
+    async fn stream_string_error() {
+        // `&'static str` does not impl `Error`
+        // but it does impl `Into<Box<dyn Error>>`
+
+        let body = BodyStream::new(stream::once(async { Err("stringy error") }));
+        assert!(matches!(to_bytes(body).await, Err("stringy error")));
+    }
+
+    #[actix_rt::test]
+    async fn stream_boxed_error() {
+        // `Box<dyn Error>` does not impl `Error`
+        // but it does impl `Into<Box<dyn Error>>`
+
+        let body = BodyStream::new(stream::once(async {
+            Err(Box::<dyn StdError>::from("stringy error"))
+        }));
+
+        assert_eq!(
+            to_bytes(body).await.unwrap_err().to_string(),
+            "stringy error"
+        );
+    }
+
    #[actix_rt::test]
    async fn stream_delayed_error() {
        let body =
--- a/actix-http/src/body/message_body.rs
+++ b/actix-http/src/body/message_body.rs
@@ -31,7 +31,7 @@ impl MessageBody for () {
    type Error = Infallible;

    fn size(&self) -> BodySize {
-        BodySize::Empty
+        BodySize::Sized(0)
    }

    fn poll_next(
--- a/actix-http/src/body/mod.rs
+++ b/actix-http/src/body/mod.rs
@@ -11,15 +11,14 @@ use futures_core::ready;
 mod body;
 mod body_stream;
 mod message_body;
-mod response_body;
 mod size;
 mod sized_stream;

-pub use self::body::{AnyBody, Body, BoxAnyBody};
+#[allow(deprecated)]
+pub use self::body::{AnyBody, Body, BoxBody};
 pub use self::body_stream::BodyStream;
 pub use self::message_body::MessageBody;
 pub(crate) use self::message_body::MessageBodyMapErr;
-pub use self::response_body::ResponseBody;
 pub use self::size::BodySize;
 pub use self::sized_stream::SizedStream;

@@ -29,23 +28,24 @@ pub use self::sized_stream::SizedStream;
 ///
 /// # Examples
 /// ```
-/// use actix_http::body::{Body, to_bytes};
+/// use actix_http::body::{AnyBody, to_bytes};
 /// use bytes::Bytes;
 ///
 /// # async fn test_to_bytes() {
-/// let body = Body::Empty;
+/// let body = AnyBody::none();
 /// let bytes = to_bytes(body).await.unwrap();
 /// assert!(bytes.is_empty());
 ///
-/// let body = Body::Bytes(Bytes::from_static(b"123"));
+/// let body = AnyBody::copy_from_slice(b"123");
 /// let bytes = to_bytes(body).await.unwrap();
 /// assert_eq!(bytes, b"123"[..]);
 /// # }
 /// ```
 pub async fn to_bytes<B: MessageBody>(body: B) -> Result<Bytes, B::Error> {
    let cap = match body.size() {
-        BodySize::None | BodySize::Empty | BodySize::Sized(0) => return Ok(Bytes::new()),
+        BodySize::None | BodySize::Sized(0) => return Ok(Bytes::new()),
        BodySize::Sized(size) => size as usize,
+        // good enough first guess for chunk size
        BodySize::Stream => 32_768,
    };

@@ -75,22 +75,25 @@ mod tests {
    use actix_utils::future::poll_fn;
    use bytes::{Bytes, BytesMut};

-    use super::*;
+    use super::{to_bytes, AnyBody as TestAnyBody, BodySize, MessageBody as _};

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

+    /// AnyBody alias because rustc does not (can not?) infer the default type parameter.
+    type AnyBody = TestAnyBody;
+
    #[actix_rt::test]
    async fn test_static_str() {
-        assert_eq!(Body::from("").size(), BodySize::Sized(0));
-        assert_eq!(Body::from("test").size(), BodySize::Sized(4));
-        assert_eq!(Body::from("test").get_ref(), b"test");
+        assert_eq!(AnyBody::from("").size(), BodySize::Sized(0));
+        assert_eq!(AnyBody::from("test").size(), BodySize::Sized(4));
+        assert_eq!(AnyBody::from("test").get_ref(), b"test");

        assert_eq!("test".size(), BodySize::Sized(4));
        assert_eq!(
@@ -104,13 +107,16 @@ mod tests {

    #[actix_rt::test]
    async fn test_static_bytes() {
-        assert_eq!(Body::from(b"test".as_ref()).size(), BodySize::Sized(4));
-        assert_eq!(Body::from(b"test".as_ref()).get_ref(), b"test");
+        assert_eq!(AnyBody::from(b"test".as_ref()).size(), BodySize::Sized(4));
+        assert_eq!(AnyBody::from(b"test".as_ref()).get_ref(), b"test");
        assert_eq!(
-            Body::from_slice(b"test".as_ref()).size(),
+            AnyBody::copy_from_slice(b"test".as_ref()).size(),
            BodySize::Sized(4)
        );
-        assert_eq!(Body::from_slice(b"test".as_ref()).get_ref(), b"test");
+        assert_eq!(
+            AnyBody::copy_from_slice(b"test".as_ref()).get_ref(),
+            b"test"
+        );
        let sb = Bytes::from(&b"test"[..]);
        pin!(sb);

@@ -123,8 +129,8 @@ mod tests {

    #[actix_rt::test]
    async fn test_vec() {
-        assert_eq!(Body::from(Vec::from("test")).size(), BodySize::Sized(4));
-        assert_eq!(Body::from(Vec::from("test")).get_ref(), b"test");
+        assert_eq!(AnyBody::from(Vec::from("test")).size(), BodySize::Sized(4));
+        assert_eq!(AnyBody::from(Vec::from("test")).get_ref(), b"test");
        let test_vec = Vec::from("test");
        pin!(test_vec);

@@ -141,8 +147,8 @@ mod tests {
    #[actix_rt::test]
    async fn test_bytes() {
        let b = Bytes::from("test");
-        assert_eq!(Body::from(b.clone()).size(), BodySize::Sized(4));
-        assert_eq!(Body::from(b.clone()).get_ref(), b"test");
+        assert_eq!(AnyBody::from(b.clone()).size(), BodySize::Sized(4));
+        assert_eq!(AnyBody::from(b.clone()).get_ref(), b"test");
        pin!(b);

        assert_eq!(b.size(), BodySize::Sized(4));
@@ -155,8 +161,8 @@ mod tests {
    #[actix_rt::test]
    async fn test_bytes_mut() {
        let b = BytesMut::from("test");
-        assert_eq!(Body::from(b.clone()).size(), BodySize::Sized(4));
-        assert_eq!(Body::from(b.clone()).get_ref(), b"test");
+        assert_eq!(AnyBody::from(b.clone()).size(), BodySize::Sized(4));
+        assert_eq!(AnyBody::from(b.clone()).get_ref(), b"test");
        pin!(b);

        assert_eq!(b.size(), BodySize::Sized(4));
@@ -169,10 +175,10 @@ mod tests {
    #[actix_rt::test]
    async fn test_string() {
        let b = "test".to_owned();
-        assert_eq!(Body::from(b.clone()).size(), BodySize::Sized(4));
-        assert_eq!(Body::from(b.clone()).get_ref(), b"test");
-        assert_eq!(Body::from(&b).size(), BodySize::Sized(4));
-        assert_eq!(Body::from(&b).get_ref(), b"test");
+        assert_eq!(AnyBody::from(b.clone()).size(), BodySize::Sized(4));
+        assert_eq!(AnyBody::from(b.clone()).get_ref(), b"test");
+        assert_eq!(AnyBody::from(&b).size(), BodySize::Sized(4));
+        assert_eq!(AnyBody::from(&b).get_ref(), b"test");
        pin!(b);

        assert_eq!(b.size(), BodySize::Sized(4));
@@ -184,7 +190,7 @@ mod tests {

    #[actix_rt::test]
    async fn test_unit() {
-        assert_eq!(().size(), BodySize::Empty);
+        assert_eq!(().size(), BodySize::Sized(0));
        assert!(poll_fn(|cx| Pin::new(&mut ()).poll_next(cx))
            .await
            .is_none());
@@ -194,41 +200,44 @@ mod tests {
    async fn test_box_and_pin() {
        let val = Box::new(());
        pin!(val);
-        assert_eq!(val.size(), BodySize::Empty);
+        assert_eq!(val.size(), BodySize::Sized(0));
        assert!(poll_fn(|cx| val.as_mut().poll_next(cx)).await.is_none());

        let mut val = Box::pin(());
-        assert_eq!(val.size(), BodySize::Empty);
+        assert_eq!(val.size(), BodySize::Sized(0));
        assert!(poll_fn(|cx| val.as_mut().poll_next(cx)).await.is_none());
    }

    #[actix_rt::test]
    async fn test_body_eq() {
        assert!(
-            Body::Bytes(Bytes::from_static(b"1"))
-                == Body::Bytes(Bytes::from_static(b"1"))
+            AnyBody::Bytes(Bytes::from_static(b"1"))
+                == AnyBody::Bytes(Bytes::from_static(b"1"))
        );
-        assert!(Body::Bytes(Bytes::from_static(b"1")) != Body::None);
+        assert!(AnyBody::Bytes(Bytes::from_static(b"1")) != AnyBody::None);
    }

    #[actix_rt::test]
    async fn test_body_debug() {
-        assert!(format!("{:?}", Body::None).contains("Body::None"));
-        assert!(format!("{:?}", Body::Empty).contains("Body::Empty"));
-        assert!(format!("{:?}", Body::Bytes(Bytes::from_static(b"1"))).contains('1'));
+        assert!(format!("{:?}", AnyBody::None).contains("Body::None"));
+        assert!(format!("{:?}", AnyBody::from(Bytes::from_static(b"1"))).contains('1'));
    }

    #[actix_rt::test]
    async fn test_serde_json() {
        use serde_json::{json, Value};
        assert_eq!(
-            Body::from(serde_json::to_vec(&Value::String("test".to_owned())).unwrap())
-                .size(),
+            AnyBody::from(
+                serde_json::to_vec(&Value::String("test".to_owned())).unwrap()
+            )
+            .size(),
            BodySize::Sized(6)
        );
        assert_eq!(
-            Body::from(serde_json::to_vec(&json!({"test-key":"test-value"})).unwrap())
-                .size(),
+            AnyBody::from(
+                serde_json::to_vec(&json!({"test-key":"test-value"})).unwrap()
+            )
+            .size(),
            BodySize::Sized(25)
        );
    }
@@ -252,11 +261,11 @@ mod tests {

    #[actix_rt::test]
    async fn test_to_bytes() {
-        let body = Body::Empty;
+        let body = AnyBody::empty();
        let bytes = to_bytes(body).await.unwrap();
        assert!(bytes.is_empty());

-        let body = Body::Bytes(Bytes::from_static(b"123"));
+        let body = AnyBody::copy_from_slice(b"123");
        let bytes = to_bytes(body).await.unwrap();
        assert_eq!(bytes, b"123"[..]);
    }
--- a/actix-http/src/body/response_body.rs
+++ b/actix-http/src/body/response_body.rs
@@ -1,84 +0,0 @@
-use std::{
-    mem,
-    pin::Pin,
-    task::{Context, Poll},
-};
-
-use bytes::Bytes;
-use futures_core::Stream;
-use pin_project::pin_project;
-
-use crate::error::Error;
-
-use super::{Body, BodySize, MessageBody};
-
-#[pin_project(project = ResponseBodyProj)]
-pub enum ResponseBody<B> {
-    Body(#[pin] B),
-    Other(Body),
-}
-
-impl ResponseBody<Body> {
-    pub fn into_body<B>(self) -> ResponseBody<B> {
-        match self {
-            ResponseBody::Body(b) => ResponseBody::Other(b),
-            ResponseBody::Other(b) => ResponseBody::Other(b),
-        }
-    }
-}
-
-impl<B> ResponseBody<B> {
-    pub fn take_body(&mut self) -> ResponseBody<B> {
-        mem::replace(self, ResponseBody::Other(Body::None))
-    }
-}
-
-impl<B: MessageBody> ResponseBody<B> {
-    pub fn as_ref(&self) -> Option<&B> {
-        if let ResponseBody::Body(ref b) = self {
-            Some(b)
-        } else {
-            None
-        }
-    }
-}
-
-impl<B> MessageBody for ResponseBody<B>
-where
-    B: MessageBody,
-    B::Error: Into<Error>,
-{
-    type Error = Error;
-
-    fn size(&self) -> BodySize {
-        match self {
-            ResponseBody::Body(ref body) => body.size(),
-            ResponseBody::Other(ref body) => body.size(),
-        }
-    }
-
-    fn poll_next(
-        self: Pin<&mut Self>,
-        cx: &mut Context<'_>,
-    ) -> Poll<Option<Result<Bytes, Self::Error>>> {
-        Stream::poll_next(self, cx)
-    }
-}
-
-impl<B> Stream for ResponseBody<B>
-where
-    B: MessageBody,
-    B::Error: Into<Error>,
-{
-    type Item = Result<Bytes, Error>;
-
-    fn poll_next(
-        self: Pin<&mut Self>,
-        cx: &mut Context<'_>,
-    ) -> Poll<Option<Self::Item>> {
-        match self.project() {
-            ResponseBodyProj::Body(body) => body.poll_next(cx).map_err(Into::into),
-            ResponseBodyProj::Other(body) => Pin::new(body).poll_next(cx),
-        }
-    }
-}
--- a/actix-http/src/body/size.rs
+++ b/actix-http/src/body/size.rs
@@ -6,14 +6,9 @@ pub enum BodySize {
    /// Will skip writing Content-Length header.
    None,

-    /// Zero size body.
-    ///
-    /// Will write `Content-Length: 0` header.
-    Empty,
-
    /// Known size body.
    ///
-    /// Will write `Content-Length: N` header. `Sized(0)` is treated the same as `Empty`.
+    /// Will write `Content-Length: N` header.
    Sized(u64),

    /// Unknown size body.
@@ -25,16 +20,17 @@ pub enum BodySize {
 impl BodySize {
    /// Returns true if size hint indicates no or empty body.
    ///
+    /// Streams will return false because it cannot be known without reading the stream.
+    ///
    /// ```
    /// # use actix_http::body::BodySize;
    /// assert!(BodySize::None.is_eof());
-    /// assert!(BodySize::Empty.is_eof());
    /// assert!(BodySize::Sized(0).is_eof());
    ///
    /// assert!(!BodySize::Sized(64).is_eof());
    /// assert!(!BodySize::Stream.is_eof());
    /// ```
    pub fn is_eof(&self) -> bool {
-        matches!(self, BodySize::None | BodySize::Empty | BodySize::Sized(0))
+        matches!(self, BodySize::None | BodySize::Sized(0))
    }
 }
--- a/actix-http/src/body/sized_stream.rs
+++ b/actix-http/src/body/sized_stream.rs
@@ -72,10 +72,22 @@ mod tests {
    use actix_rt::pin;
    use actix_utils::future::poll_fn;
    use futures_util::stream;
+    use static_assertions::{assert_impl_all, assert_not_impl_all};

    use super::*;
    use crate::body::to_bytes;

+    assert_impl_all!(SizedStream<stream::Empty<Result<Bytes, crate::Error>>>: MessageBody);
+    assert_impl_all!(SizedStream<stream::Empty<Result<Bytes, &'static str>>>: MessageBody);
+    assert_impl_all!(SizedStream<stream::Repeat<Result<Bytes, &'static str>>>: MessageBody);
+    assert_impl_all!(SizedStream<stream::Empty<Result<Bytes, Infallible>>>: MessageBody);
+    assert_impl_all!(SizedStream<stream::Repeat<Result<Bytes, Infallible>>>: MessageBody);
+
+    assert_not_impl_all!(SizedStream<stream::Empty<Bytes>>: MessageBody);
+    assert_not_impl_all!(SizedStream<stream::Repeat<Bytes>>: MessageBody);
+    // crate::Error is not Clone
+    assert_not_impl_all!(SizedStream<stream::Repeat<Result<Bytes, crate::Error>>>: MessageBody);
+
    #[actix_rt::test]
    async fn skips_empty_chunks() {
        let body = SizedStream::new(
@@ -119,4 +131,37 @@ mod tests {

        assert_eq!(to_bytes(body).await.ok(), Some(Bytes::from("12")));
    }
+
+    #[actix_rt::test]
+    async fn stream_string_error() {
+        // `&'static str` does not impl `Error`
+        // but it does impl `Into<Box<dyn Error>>`
+
+        let body = SizedStream::new(0, stream::once(async { Err("stringy error") }));
+        assert_eq!(to_bytes(body).await, Ok(Bytes::new()));
+
+        let body = SizedStream::new(1, stream::once(async { Err("stringy error") }));
+        assert!(matches!(to_bytes(body).await, Err("stringy error")));
+    }
+
+    #[actix_rt::test]
+    async fn stream_boxed_error() {
+        // `Box<dyn Error>` does not impl `Error`
+        // but it does impl `Into<Box<dyn Error>>`
+
+        let body = SizedStream::new(
+            0,
+            stream::once(async { Err(Box::<dyn StdError>::from("stringy error")) }),
+        );
+        assert_eq!(to_bytes(body).await.unwrap(), Bytes::new());
+
+        let body = SizedStream::new(
+            1,
+            stream::once(async { Err(Box::<dyn StdError>::from("stringy error")) }),
+        );
+        assert_eq!(
+            to_bytes(body).await.unwrap_err().to_string(),
+            "stringy error"
+        );
+    }
 }
--- a/actix-http/src/config.rs
+++ b/actix-http/src/config.rs
@@ -20,8 +20,10 @@ pub(crate) const DATE_VALUE_LENGTH: usize = 29;
 pub enum KeepAlive {
    /// Keep alive in seconds
    Timeout(usize),
+
    /// Rely on OS to shutdown tcp connection
    Os,
+
    /// Disabled
    Disabled,
 }
--- a/actix-http/src/encoding/encoder.rs
+++ b/actix-http/src/encoding/encoder.rs
@@ -24,7 +24,7 @@ use flate2::write::{GzEncoder, ZlibEncoder};
 use zstd::stream::write::Encoder as ZstdEncoder;

 use crate::{
-    body::{Body, BodySize, BoxAnyBody, MessageBody, ResponseBody},
+    body::{AnyBody, BodySize, MessageBody},
    http::{
        header::{ContentEncoding, CONTENT_ENCODING},
        HeaderValue, StatusCode,
@@ -50,8 +50,8 @@ impl<B: MessageBody> Encoder<B> {
    pub fn response(
        encoding: ContentEncoding,
        head: &mut ResponseHead,
-        body: ResponseBody<B>,
-    ) -> ResponseBody<Encoder<B>> {
+        body: AnyBody<B>,
+    ) -> AnyBody<Encoder<B>> {
        let can_encode = !(head.headers().contains_key(&CONTENT_ENCODING)
            || head.status == StatusCode::SWITCHING_PROTOCOLS
            || head.status == StatusCode::NO_CONTENT
@@ -59,19 +59,15 @@ impl<B: MessageBody> Encoder<B> {
            || encoding == ContentEncoding::Auto);

        let body = match body {
-            ResponseBody::Other(b) => match b {
-                Body::None => return ResponseBody::Other(Body::None),
-                Body::Empty => return ResponseBody::Other(Body::Empty),
-                Body::Bytes(buf) => {
-                    if can_encode {
-                        EncoderBody::Bytes(buf)
-                    } else {
-                        return ResponseBody::Other(Body::Bytes(buf));
-                    }
+            AnyBody::None => return AnyBody::None,
+            AnyBody::Bytes(buf) => {
+                if can_encode {
+                    EncoderBody::Bytes(buf)
+                } else {
+                    return AnyBody::Bytes(buf);
                }
-                Body::Message(stream) => EncoderBody::BoxedStream(stream),
-            },
-            ResponseBody::Body(stream) => EncoderBody::Stream(stream),
+            }
+            AnyBody::Body(body) => EncoderBody::Stream(body),
        };

        if can_encode {
@@ -79,7 +75,8 @@ impl<B: MessageBody> Encoder<B> {
            if let Some(enc) = ContentEncoder::encoder(encoding) {
                update_head(encoding, head);
                head.no_chunking(false);
-                return ResponseBody::Body(Encoder {
+
+                return AnyBody::Body(Encoder {
                    body,
                    eof: false,
                    fut: None,
@@ -88,7 +85,7 @@ impl<B: MessageBody> Encoder<B> {
            }
        }

-        ResponseBody::Body(Encoder {
+        AnyBody::Body(Encoder {
            body,
            eof: false,
            fut: None,
@@ -101,7 +98,6 @@ impl<B: MessageBody> Encoder<B> {
 enum EncoderBody<B> {
    Bytes(Bytes),
    Stream(#[pin] B),
-    BoxedStream(BoxAnyBody),
 }

 impl<B> MessageBody for EncoderBody<B>
@@ -114,7 +110,6 @@ where
        match self {
            EncoderBody::Bytes(ref b) => b.size(),
            EncoderBody::Stream(ref b) => b.size(),
-            EncoderBody::BoxedStream(ref b) => b.size(),
        }
    }

@@ -131,9 +126,6 @@ where
                }
            }
            EncoderBodyProj::Stream(b) => b.poll_next(cx).map_err(EncoderError::Body),
-            EncoderBodyProj::BoxedStream(ref mut b) => {
-                b.as_pin_mut().poll_next(cx).map_err(EncoderError::Boxed)
-            }
        }
    }
 }
@@ -349,9 +341,6 @@ pub enum EncoderError<E> {
    #[display(fmt = "body")]
    Body(E),

-    #[display(fmt = "boxed")]
-    Boxed(Box<dyn StdError>),
-
    #[display(fmt = "blocking")]
    Blocking(BlockingError),

@@ -363,7 +352,6 @@ impl<E: StdError + 'static> StdError for EncoderError<E> {
    fn source(&self) -> Option<&(dyn StdError + 'static)> {
        match self {
            EncoderError::Body(err) => Some(err),
-            EncoderError::Boxed(err) => Some(&**err),
            EncoderError::Blocking(err) => Some(err),
            EncoderError::Io(err) => Some(err),
        }
--- a/actix-http/src/error.rs
+++ b/actix-http/src/error.rs
@@ -5,10 +5,7 @@ use std::{error::Error as StdError, fmt, io, str::Utf8Error, string::FromUtf8Err
 use derive_more::{Display, Error, From};
 use http::{uri::InvalidUri, StatusCode};

-use crate::{
-    body::{AnyBody, Body},
-    ws, Response,
-};
+use crate::{body::AnyBody, ws, Response};

 pub use http::Error as HttpError;

@@ -29,6 +26,11 @@ impl Error {
        }
    }

+    pub(crate) fn with_cause(mut self, cause: impl Into<Box<dyn StdError>>) -> Self {
+        self.inner.cause = Some(cause.into());
+        self
+    }
+
    pub(crate) fn new_http() -> Self {
        Self::new(Kind::Http)
    }
@@ -49,14 +51,12 @@ impl Error {
        Self::new(Kind::SendResponse)
    }

-    // TODO: remove allow
-    #[allow(dead_code)]
+    #[allow(unused)] // reserved for future use (TODO: remove allow when being used)
    pub(crate) fn new_io() -> Self {
        Self::new(Kind::Io)
    }

-    // used in encoder behind feature flag so ignore unused warning
-    #[allow(unused)]
+    #[allow(unused)] // used in encoder behind feature flag so ignore unused warning
    pub(crate) fn new_encoder() -> Self {
        Self::new(Kind::Encoder)
    }
@@ -64,26 +64,21 @@ impl Error {
    pub(crate) fn new_ws() -> Self {
        Self::new(Kind::Ws)
    }
-
-    pub(crate) fn with_cause(mut self, cause: impl Into<Box<dyn StdError>>) -> Self {
-        self.inner.cause = Some(cause.into());
-        self
-    }
 }

-impl From<Error> for Response<AnyBody> {
+impl<B> From<Error> for Response<AnyBody<B>> {
    fn from(err: Error) -> Self {
        let status_code = match err.inner.kind {
            Kind::Parse => StatusCode::BAD_REQUEST,
            _ => StatusCode::INTERNAL_SERVER_ERROR,
        };

-        Response::new(status_code).set_body(Body::from(err.to_string()))
+        Response::new(status_code).set_body(AnyBody::from(err.to_string()))
    }
 }

 #[derive(Debug, Clone, Copy, PartialEq, Eq, Display)]
-pub enum Kind {
+pub(crate) enum Kind {
    #[display(fmt = "error processing HTTP")]
    Http,

--- a/actix-http/src/h1/client.rs
+++ b/actix-http/src/h1/client.rs
@@ -120,7 +120,7 @@ impl Decoder for ClientCodec {
        debug_assert!(!self.inner.payload.is_some(), "Payload decoder is set");

        if let Some((req, payload)) = self.inner.decoder.decode(src)? {
-            if let Some(ctype) = req.ctype() {
+            if let Some(ctype) = req.conn_type() {
                // do not use peer's keep-alive
                self.inner.ctype = if ctype == ConnectionType::KeepAlive {
                    self.inner.ctype
--- a/actix-http/src/h1/codec.rs
+++ b/actix-http/src/h1/codec.rs
@@ -29,7 +29,7 @@ pub struct Codec {
    decoder: decoder::MessageDecoder<Request>,
    payload: Option<PayloadDecoder>,
    version: Version,
-    ctype: ConnectionType,
+    conn_type: ConnectionType,

    // encoder part
    flags: Flags,
@@ -65,7 +65,7 @@ impl Codec {
            decoder: decoder::MessageDecoder::default(),
            payload: None,
            version: Version::HTTP_11,
-            ctype: ConnectionType::Close,
+            conn_type: ConnectionType::Close,
            encoder: encoder::MessageEncoder::default(),
        }
    }
@@ -73,13 +73,13 @@ impl Codec {
    /// Check if request is upgrade.
    #[inline]
    pub fn upgrade(&self) -> bool {
-        self.ctype == ConnectionType::Upgrade
+        self.conn_type == ConnectionType::Upgrade
    }

    /// Check if last response is keep-alive.
    #[inline]
    pub fn keepalive(&self) -> bool {
-        self.ctype == ConnectionType::KeepAlive
+        self.conn_type == ConnectionType::KeepAlive
    }

    /// Check if keep-alive enabled on server level.
@@ -124,11 +124,11 @@ impl Decoder for Codec {
            let head = req.head();
            self.flags.set(Flags::HEAD, head.method == Method::HEAD);
            self.version = head.version;
-            self.ctype = head.connection_type();
-            if self.ctype == ConnectionType::KeepAlive
+            self.conn_type = head.connection_type();
+            if self.conn_type == ConnectionType::KeepAlive
                && !self.flags.contains(Flags::KEEPALIVE_ENABLED)
            {
-                self.ctype = ConnectionType::Close
+                self.conn_type = ConnectionType::Close
            }
            match payload {
                PayloadType::None => self.payload = None,
@@ -159,14 +159,14 @@ impl Encoder<Message<(Response<()>, BodySize)>> for Codec {
                res.head_mut().version = self.version;

                // connection status
-                self.ctype = if let Some(ct) = res.head().ctype() {
+                self.conn_type = if let Some(ct) = res.head().conn_type() {
                    if ct == ConnectionType::KeepAlive {
-                        self.ctype
+                        self.conn_type
                    } else {
                        ct
                    }
                } else {
-                    self.ctype
+                    self.conn_type
                };

                // encode message
@@ -177,10 +177,9 @@ impl Encoder<Message<(Response<()>, BodySize)>> for Codec {
                    self.flags.contains(Flags::STREAM),
                    self.version,
                    length,
-                    self.ctype,
+                    self.conn_type,
                    &self.config,
                )?;
-                // self.headers_size = (dst.len() - len) as u32;
            }
            Message::Chunk(Some(bytes)) => {
                self.encoder.encode_chunk(bytes.as_ref(), dst)?;
@@ -189,6 +188,7 @@ impl Encoder<Message<(Response<()>, BodySize)>> for Codec {
                self.encoder.encode_eof(dst)?;
            }
        }
+
        Ok(())
    }
 }
--- a/actix-http/src/h1/dispatcher.rs
+++ b/actix-http/src/h1/dispatcher.rs
@@ -325,7 +325,7 @@ where
    ) -> Result<(), DispatchError> {
        let size = self.as_mut().send_response_inner(message, &body)?;
        let state = match size {
-            BodySize::None | BodySize::Empty => State::None,
+            BodySize::None | BodySize::Sized(0) => State::None,
            _ => State::SendPayload(body),
        };
        self.project().state.set(state);
@@ -339,7 +339,7 @@ where
    ) -> Result<(), DispatchError> {
        let size = self.as_mut().send_response_inner(message, &body)?;
        let state = match size {
-            BodySize::None | BodySize::Empty => State::None,
+            BodySize::None | BodySize::Sized(0) => State::None,
            _ => State::SendErrorPayload(body),
        };
        self.project().state.set(state);
@@ -380,7 +380,7 @@ where
                        // send_response would update InnerDispatcher state to SendPayload or
                        // None(If response body is empty).
                        // continue loop to poll it.
-                        self.as_mut().send_error_response(res, AnyBody::Empty)?;
+                        self.as_mut().send_error_response(res, AnyBody::empty())?;
                    }

                    // return with upgrade request and poll it exclusively.
@@ -772,7 +772,7 @@ where
                                trace!("Slow request timeout");
                                let _ = self.as_mut().send_error_response(
                                    Response::with_body(StatusCode::REQUEST_TIMEOUT, ()),
-                                    AnyBody::Empty,
+                                    AnyBody::empty(),
                                );
                                this = self.project();
                                this.flags.insert(Flags::STARTED | Flags::SHUTDOWN);
@@ -1077,7 +1077,7 @@ mod tests {
        fn_service(|req: Request| {
            let path = req.path().as_bytes();
            ready(Ok::<_, Error>(
-                Response::ok().set_body(AnyBody::from_slice(path)),
+                Response::ok().set_body(AnyBody::copy_from_slice(path)),
            ))
        })
    }
--- a/actix-http/src/h1/encoder.rs
+++ b/actix-http/src/h1/encoder.rs
@@ -56,7 +56,7 @@ pub(crate) trait MessageType: Sized {
        dst: &mut BytesMut,
        version: Version,
        mut length: BodySize,
-        ctype: ConnectionType,
+        conn_type: ConnectionType,
        config: &ServiceConfig,
    ) -> io::Result<()> {
        let chunked = self.chunked();
@@ -71,14 +71,23 @@ pub(crate) trait MessageType: Sized {
                | StatusCode::PROCESSING
                | StatusCode::NO_CONTENT => {
                    // skip content-length and transfer-encoding headers
-                    // See https://tools.ietf.org/html/rfc7230#section-3.3.1
+                    // see https://tools.ietf.org/html/rfc7230#section-3.3.1
                    // and https://tools.ietf.org/html/rfc7230#section-3.3.2
                    skip_len = true;
                    length = BodySize::None
                }
+
+                StatusCode::NOT_MODIFIED => {
+                    // 304 responses should never have a body but should retain a manually set
+                    // content-length header see https://tools.ietf.org/html/rfc7232#section-4.1
+                    skip_len = false;
+                    length = BodySize::None;
+                }
+
                _ => {}
            }
        }
+
        match length {
            BodySize::Stream => {
                if chunked {
@@ -93,19 +102,16 @@ pub(crate) trait MessageType: Sized {
                    dst.put_slice(b"\r\n");
                }
            }
-            BodySize::Empty => {
-                if camel_case {
-                    dst.put_slice(b"\r\nContent-Length: 0\r\n");
-                } else {
-                    dst.put_slice(b"\r\ncontent-length: 0\r\n");
-                }
+            BodySize::Sized(0) if camel_case => {
+                dst.put_slice(b"\r\nContent-Length: 0\r\n")
            }
+            BodySize::Sized(0) => dst.put_slice(b"\r\ncontent-length: 0\r\n"),
            BodySize::Sized(len) => helpers::write_content_length(len, dst),
            BodySize::None => dst.put_slice(b"\r\n"),
        }

        // Connection
-        match ctype {
+        match conn_type {
            ConnectionType::Upgrade => dst.put_slice(b"connection: upgrade\r\n"),
            ConnectionType::KeepAlive if version < Version::HTTP_11 => {
                if camel_case {
@@ -330,13 +336,13 @@ impl<T: MessageType> MessageEncoder<T> {
        stream: bool,
        version: Version,
        length: BodySize,
-        ctype: ConnectionType,
+        conn_type: ConnectionType,
        config: &ServiceConfig,
    ) -> io::Result<()> {
        // transfer encoding
        if !head {
            self.te = match length {
-                BodySize::Empty => TransferEncoding::empty(),
+                BodySize::Sized(0) => TransferEncoding::empty(),
                BodySize::Sized(len) => TransferEncoding::length(len),
                BodySize::Stream => {
                    if message.chunked() && !stream {
@@ -352,7 +358,7 @@ impl<T: MessageType> MessageEncoder<T> {
        }

        message.encode_status(dst)?;
-        message.encode_headers(dst, version, length, ctype, config)
+        message.encode_headers(dst, version, length, conn_type, config)
    }
 }

@@ -366,10 +372,12 @@ pub(crate) struct TransferEncoding {
 enum TransferEncodingKind {
    /// An Encoder for when Transfer-Encoding includes `chunked`.
    Chunked(bool),
+
    /// An Encoder for when Content-Length is set.
    ///
    /// Enforces that the body is not longer than the Content-Length header.
    Length(u64),
+
    /// An Encoder for when Content-Length is not known.
    ///
    /// Application decides when to stop writing.
@@ -553,7 +561,7 @@ mod tests {
        let _ = head.encode_headers(
            &mut bytes,
            Version::HTTP_11,
-            BodySize::Empty,
+            BodySize::Sized(0),
            ConnectionType::Close,
            &ServiceConfig::default(),
        );
@@ -624,7 +632,7 @@ mod tests {
        let _ = head.encode_headers(
            &mut bytes,
            Version::HTTP_11,
-            BodySize::Empty,
+            BodySize::Sized(0),
            ConnectionType::Close,
            &ServiceConfig::default(),
        );
--- a/actix-http/src/h1/service.rs
+++ b/actix-http/src/h1/service.rs
@@ -102,7 +102,6 @@ where
 mod openssl {
    use super::*;

-    use actix_service::ServiceFactoryExt;
    use actix_tls::accept::{
        openssl::{Acceptor, SslAcceptor, SslError, TlsStream},
        TlsError,
@@ -133,7 +132,7 @@ mod openssl {
        U::Error: fmt::Display + Into<Response<AnyBody>>,
        U::InitError: fmt::Debug,
    {
-        /// Create openssl based service
+        /// Create OpenSSL based service.
        pub fn openssl(
            self,
            acceptor: SslAcceptor,
@@ -145,11 +144,13 @@ mod openssl {
            InitError = (),
        > {
            Acceptor::new(acceptor)
-                .map_err(TlsError::Tls)
-                .map_init_err(|_| panic!())
-                .and_then(|io: TlsStream<TcpStream>| {
+                .map_init_err(|_| {
+                    unreachable!("TLS acceptor service factory does not error on init")
+                })
+                .map_err(TlsError::into_service_error)
+                .map(|io: TlsStream<TcpStream>| {
                    let peer_addr = io.get_ref().peer_addr().ok();
-                    ready(Ok((io, peer_addr)))
+                    (io, peer_addr)
                })
                .and_then(self.map_err(TlsError::Service))
        }
@@ -158,16 +159,17 @@ mod openssl {

 #[cfg(feature = "rustls")]
 mod rustls {
-    use super::*;

    use std::io;

-    use actix_service::ServiceFactoryExt;
+    use actix_service::ServiceFactoryExt as _;
    use actix_tls::accept::{
        rustls::{Acceptor, ServerConfig, TlsStream},
        TlsError,
    };

+    use super::*;
+
    impl<S, B, X, U> H1Service<TlsStream<TcpStream>, S, B, X, U>
    where
        S: ServiceFactory<Request, Config = ()>,
@@ -193,7 +195,7 @@ mod rustls {
        U::Error: fmt::Display + Into<Response<AnyBody>>,
        U::InitError: fmt::Debug,
    {
-        /// Create rustls based service
+        /// Create Rustls based service.
        pub fn rustls(
            self,
            config: ServerConfig,
@@ -205,11 +207,13 @@ mod rustls {
            InitError = (),
        > {
            Acceptor::new(config)
-                .map_err(TlsError::Tls)
-                .map_init_err(|_| panic!())
-                .and_then(|io: TlsStream<TcpStream>| {
+                .map_init_err(|_| {
+                    unreachable!("TLS acceptor service factory does not error on init")
+                })
+                .map_err(TlsError::into_service_error)
+                .map(|io: TlsStream<TcpStream>| {
                    let peer_addr = io.get_ref().0.peer_addr().ok();
-                    ready(Ok((io, peer_addr)))
+                    (io, peer_addr)
                })
                .and_then(self.map_err(TlsError::Service))
        }
--- a/actix-http/src/h2/dispatcher.rs
+++ b/actix-http/src/h2/dispatcher.rs
@@ -285,9 +285,11 @@ fn prepare_response(

    let _ = match size {
        BodySize::None | BodySize::Stream => None,
-        BodySize::Empty => res
+
+        BodySize::Sized(0) => res
            .headers_mut()
            .insert(CONTENT_LENGTH, HeaderValue::from_static("0")),
+
        BodySize::Sized(len) => {
            let mut buf = itoa::Buffer::new();

--- a/actix-http/src/h2/service.rs
+++ b/actix-http/src/h2/service.rs
@@ -101,9 +101,11 @@ where

 #[cfg(feature = "openssl")]
 mod openssl {
-    use actix_service::{fn_factory, fn_service, ServiceFactoryExt};
-    use actix_tls::accept::openssl::{Acceptor, SslAcceptor, SslError, TlsStream};
-    use actix_tls::accept::TlsError;
+    use actix_service::ServiceFactoryExt as _;
+    use actix_tls::accept::{
+        openssl::{Acceptor, SslAcceptor, SslError, TlsStream},
+        TlsError,
+    };

    use super::*;

@@ -118,7 +120,7 @@ mod openssl {
        B: MessageBody + 'static,
        B::Error: Into<Box<dyn StdError>>,
    {
-        /// Create OpenSSL based service
+        /// Create OpenSSL based service.
        pub fn openssl(
            self,
            acceptor: SslAcceptor,
@@ -130,16 +132,14 @@ mod openssl {
            InitError = S::InitError,
        > {
            Acceptor::new(acceptor)
-                .map_err(TlsError::Tls)
-                .map_init_err(|_| panic!())
-                .and_then(fn_factory(|| {
-                    ready(Ok::<_, S::InitError>(fn_service(
-                        |io: TlsStream<TcpStream>| {
-                            let peer_addr = io.get_ref().peer_addr().ok();
-                            ready(Ok((io, peer_addr)))
-                        },
-                    )))
-                }))
+                .map_init_err(|_| {
+                    unreachable!("TLS acceptor service factory does not error on init")
+                })
+                .map_err(TlsError::into_service_error)
+                .map(|io: TlsStream<TcpStream>| {
+                    let peer_addr = io.get_ref().peer_addr().ok();
+                    (io, peer_addr)
+                })
                .and_then(self.map_err(TlsError::Service))
        }
    }
@@ -147,12 +147,16 @@ mod openssl {

 #[cfg(feature = "rustls")]
 mod rustls {
-    use super::*;
-    use actix_service::ServiceFactoryExt;
-    use actix_tls::accept::rustls::{Acceptor, ServerConfig, TlsStream};
-    use actix_tls::accept::TlsError;
    use std::io;

+    use actix_service::ServiceFactoryExt as _;
+    use actix_tls::accept::{
+        rustls::{Acceptor, ServerConfig, TlsStream},
+        TlsError,
+    };
+
+    use super::*;
+
    impl<S, B> H2Service<TlsStream<TcpStream>, S, B>
    where
        S: ServiceFactory<Request, Config = ()>,
@@ -164,7 +168,7 @@ mod rustls {
        B: MessageBody + 'static,
        B::Error: Into<Box<dyn StdError>>,
    {
-        /// Create Rustls based service
+        /// Create Rustls based service.
        pub fn rustls(
            self,
            mut config: ServerConfig,
@@ -180,16 +184,14 @@ mod rustls {
            config.alpn_protocols = protos;

            Acceptor::new(config)
-                .map_err(TlsError::Tls)
-                .map_init_err(|_| panic!())
-                .and_then(fn_factory(|| {
-                    ready(Ok::<_, S::InitError>(fn_service(
-                        |io: TlsStream<TcpStream>| {
-                            let peer_addr = io.get_ref().0.peer_addr().ok();
-                            ready(Ok((io, peer_addr)))
-                        },
-                    )))
-                }))
+                .map_init_err(|_| {
+                    unreachable!("TLS acceptor service factory does not error on init")
+                })
+                .map_err(TlsError::into_service_error)
+                .map(|io: TlsStream<TcpStream>| {
+                    let peer_addr = io.get_ref().0.peer_addr().ok();
+                    (io, peer_addr)
+                })
                .and_then(self.map_err(TlsError::Service))
        }
    }
--- a/actix-http/src/header/shared/quality_item.rs
+++ b/actix-http/src/header/shared/quality_item.rs
@@ -195,6 +195,7 @@ mod tests {
    use super::*;

    // copy of encoding from actix-web headers
+    #[allow(clippy::enum_variant_names)] // allow Encoding prefix on EncodingExt
    #[derive(Clone, PartialEq, Debug)]
    pub enum Encoding {
        Chunked,
--- a/actix-http/src/message.rs
+++ b/actix-http/src/message.rs
@@ -317,7 +317,7 @@ impl ResponseHead {
    }

    #[inline]
-    pub(crate) fn ctype(&self) -> Option<ConnectionType> {
+    pub(crate) fn conn_type(&self) -> Option<ConnectionType> {
        if self.flags.contains(Flags::CLOSE) {
            Some(ConnectionType::Close)
        } else if self.flags.contains(Flags::KEEP_ALIVE) {
--- a/actix-http/src/response.rs
+++ b/actix-http/src/response.rs
@@ -28,7 +28,7 @@ impl Response<AnyBody> {
    pub fn new(status: StatusCode) -> Self {
        Response {
            head: BoxedResponseHead::new(status),
-            body: AnyBody::Empty,
+            body: AnyBody::empty(),
        }
    }

--- a/actix-http/src/response_builder.rs
+++ b/actix-http/src/response_builder.rs
@@ -262,7 +262,7 @@ impl ResponseBuilder {
        S: Stream<Item = Result<Bytes, E>> + 'static,
        E: Into<Box<dyn StdError>> + 'static,
    {
-        self.body(AnyBody::from_message(BodyStream::new(stream)))
+        self.body(AnyBody::new_boxed(BodyStream::new(stream)))
    }

    /// Generate response with an empty body.
@@ -270,7 +270,7 @@ impl ResponseBuilder {
    /// This `ResponseBuilder` will be left in a useless state.
    #[inline]
    pub fn finish(&mut self) -> Response<AnyBody> {
-        self.body(AnyBody::Empty)
+        self.body(AnyBody::empty())
    }

    /// Create an owned `ResponseBuilder`, leaving the original in a useless state.
@@ -357,7 +357,7 @@ impl fmt::Debug for ResponseBuilder {
 #[cfg(test)]
 mod tests {
    use super::*;
-    use crate::body::Body;
+    use crate::body::AnyBody;
    use crate::http::header::{HeaderName, HeaderValue, CONTENT_TYPE};

    #[test]
@@ -390,13 +390,13 @@ mod tests {
    fn test_content_type() {
        let resp = Response::build(StatusCode::OK)
            .content_type("text/plain")
-            .body(Body::Empty);
+            .body(AnyBody::empty());
        assert_eq!(resp.headers().get(CONTENT_TYPE).unwrap(), "text/plain")
    }

    #[test]
    fn test_into_builder() {
-        let mut resp: Response<Body> = "test".into();
+        let mut resp: Response<AnyBody> = "test".into();
        assert_eq!(resp.status(), StatusCode::OK);

        resp.headers_mut().insert(
--- a/actix-http/src/service.rs
+++ b/actix-http/src/service.rs
@@ -195,9 +195,11 @@ where

 #[cfg(feature = "openssl")]
 mod openssl {
-    use actix_service::ServiceFactoryExt;
-    use actix_tls::accept::openssl::{Acceptor, SslAcceptor, SslError, TlsStream};
-    use actix_tls::accept::TlsError;
+    use actix_service::ServiceFactoryExt as _;
+    use actix_tls::accept::{
+        openssl::{Acceptor, SslAcceptor, SslError, TlsStream},
+        TlsError,
+    };

    use super::*;

@@ -227,7 +229,7 @@ mod openssl {
        U::Error: fmt::Display + Into<Response<AnyBody>>,
        U::InitError: fmt::Debug,
    {
-        /// Create openssl based service
+        /// Create OpenSSL based service.
        pub fn openssl(
            self,
            acceptor: SslAcceptor,
@@ -239,9 +241,11 @@ mod openssl {
            InitError = (),
        > {
            Acceptor::new(acceptor)
-                .map_err(TlsError::Tls)
-                .map_init_err(|_| panic!())
-                .and_then(|io: TlsStream<TcpStream>| async {
+                .map_init_err(|_| {
+                    unreachable!("TLS acceptor service factory does not error on init")
+                })
+                .map_err(TlsError::into_service_error)
+                .map(|io: TlsStream<TcpStream>| {
                    let proto = if let Some(protos) = io.ssl().selected_alpn_protocol() {
                        if protos.windows(2).any(|window| window == b"h2") {
                            Protocol::Http2
@@ -251,8 +255,9 @@ mod openssl {
                    } else {
                        Protocol::Http1
                    };
+
                    let peer_addr = io.get_ref().peer_addr().ok();
-                    Ok((io, proto, peer_addr))
+                    (io, proto, peer_addr)
                })
                .and_then(self.map_err(TlsError::Service))
        }
@@ -263,11 +268,13 @@ mod openssl {
 mod rustls {
    use std::io;

-    use actix_tls::accept::rustls::{Acceptor, ServerConfig, TlsStream};
-    use actix_tls::accept::TlsError;
+    use actix_service::ServiceFactoryExt as _;
+    use actix_tls::accept::{
+        rustls::{Acceptor, ServerConfig, TlsStream},
+        TlsError,
+    };

    use super::*;
-    use actix_service::ServiceFactoryExt;

    impl<S, B, X, U> HttpService<TlsStream<TcpStream>, S, B, X, U>
    where
@@ -295,7 +302,7 @@ mod rustls {
        U::Error: fmt::Display + Into<Response<AnyBody>>,
        U::InitError: fmt::Debug,
    {
-        /// Create rustls based service
+        /// Create Rustls based service.
        pub fn rustls(
            self,
            mut config: ServerConfig,
@@ -311,8 +318,10 @@ mod rustls {
            config.alpn_protocols = protos;

            Acceptor::new(config)
-                .map_err(TlsError::Tls)
-                .map_init_err(|_| panic!())
+                .map_init_err(|_| {
+                    unreachable!("TLS acceptor service factory does not error on init")
+                })
+                .map_err(TlsError::into_service_error)
                .and_then(|io: TlsStream<TcpStream>| async {
                    let proto = if let Some(protos) = io.get_ref().1.alpn_protocol() {
                        if protos.windows(2).any(|window| window == b"h2") {
--- a/actix-http/src/ws/mod.rs
+++ b/actix-http/src/ws/mod.rs
@@ -210,7 +210,6 @@ pub fn handshake_response(req: &RequestHead) -> ResponseBuilder {

    Response::build(StatusCode::SWITCHING_PROTOCOLS)
        .upgrade("websocket")
-        .insert_header((header::TRANSFER_ENCODING, "chunked"))
        .insert_header((
            header::SEC_WEBSOCKET_ACCEPT,
            // key is known to be header value safe ascii
--- a/actix-http/tests/test_openssl.rs
+++ b/actix-http/tests/test_openssl.rs
@@ -5,7 +5,7 @@ extern crate tls_openssl as openssl;
 use std::{convert::Infallible, io};

 use actix_http::{
-    body::{AnyBody, Body, SizedStream},
+    body::{AnyBody, SizedStream},
    error::PayloadError,
    http::{
        header::{self, HeaderValue},
@@ -409,7 +409,7 @@ impl From<BadRequest> for Response<AnyBody> {
 async fn test_h2_service_error() {
    let mut srv = test_server(move || {
        HttpService::build()
-            .h2(|_| err::<Response<Body>, _>(BadRequest))
+            .h2(|_| err::<Response<AnyBody>, _>(BadRequest))
            .openssl(tls_config())
            .map_err(|_| ())
    })
--- a/actix-http/tests/test_rustls.rs
+++ b/actix-http/tests/test_rustls.rs
@@ -10,7 +10,7 @@ use std::{
 };

 use actix_http::{
-    body::{AnyBody, Body, SizedStream},
+    body::{AnyBody, SizedStream},
    error::PayloadError,
    http::{
        header::{self, HeaderName, HeaderValue},
@@ -477,7 +477,7 @@ impl From<BadRequest> for Response<AnyBody> {
 async fn test_h2_service_error() {
    let mut srv = test_server(move || {
        HttpService::build()
-            .h2(|_| err::<Response<Body>, _>(BadRequest))
+            .h2(|_| err::<Response<AnyBody>, _>(BadRequest))
            .rustls(tls_config())
    })
    .await;
@@ -494,7 +494,7 @@ async fn test_h2_service_error() {
 async fn test_h1_service_error() {
    let mut srv = test_server(move || {
        HttpService::build()
-            .h1(|_| err::<Response<Body>, _>(BadRequest))
+            .h1(|_| err::<Response<AnyBody>, _>(BadRequest))
            .rustls(tls_config())
    })
    .await;
--- a/actix-http/tests/test_server.rs
+++ b/actix-http/tests/test_server.rs
@@ -6,7 +6,7 @@ use std::{
 };

 use actix_http::{
-    body::{AnyBody, Body, SizedStream},
+    body::{AnyBody, SizedStream},
    header, http, Error, HttpMessage, HttpService, KeepAlive, Request, Response,
    StatusCode,
 };
@@ -724,7 +724,7 @@ impl From<BadRequest> for Response<AnyBody> {
 async fn test_h1_service_error() {
    let mut srv = test_server(|| {
        HttpService::build()
-            .h1(|_| err::<Response<Body>, _>(BadRequest))
+            .h1(|_| err::<Response<AnyBody>, _>(BadRequest))
            .tcp()
    })
    .await;
@@ -759,3 +759,90 @@ async fn test_h1_on_connect() {

    srv.stop().await;
 }
+
+/// Tests compliance with 304 Not Modified spec in RFC 7232 §4.1.
+/// https://datatracker.ietf.org/doc/html/rfc7232#section-4.1
+#[actix_rt::test]
+async fn test_not_modified_spec_h1() {
+    // TODO: this test needing a few seconds to complete reveals some weirdness with either the
+    // dispatcher or the client, though similar hangs occur on other tests in this file, only
+    // succeeding, it seems, because of the keepalive timer
+
+    static CL: header::HeaderName = header::CONTENT_LENGTH;
+
+    let mut srv = test_server(|| {
+        HttpService::build()
+            .h1(|req: Request| {
+                let res: Response<AnyBody> = match req.path() {
+                    // with no content-length
+                    "/none" => {
+                        Response::with_body(StatusCode::NOT_MODIFIED, AnyBody::None)
+                    }
+
+                    // with no content-length
+                    "/body" => Response::with_body(
+                        StatusCode::NOT_MODIFIED,
+                        AnyBody::from("1234"),
+                    ),
+
+                    // with manual content-length header and specific None body
+                    "/cl-none" => {
+                        let mut res =
+                            Response::with_body(StatusCode::NOT_MODIFIED, AnyBody::None);
+                        res.headers_mut()
+                            .insert(CL.clone(), header::HeaderValue::from_static("24"));
+                        res
+                    }
+
+                    // with manual content-length header and ignore-able body
+                    "/cl-body" => {
+                        let mut res = Response::with_body(
+                            StatusCode::NOT_MODIFIED,
+                            AnyBody::from("1234"),
+                        );
+                        res.headers_mut()
+                            .insert(CL.clone(), header::HeaderValue::from_static("4"));
+                        res
+                    }
+
+                    _ => panic!("unknown route"),
+                };
+
+                ok::<_, Infallible>(res)
+            })
+            .tcp()
+    })
+    .await;
+
+    let res = srv.get("/none").send().await.unwrap();
+    assert_eq!(res.status(), http::StatusCode::NOT_MODIFIED);
+    assert_eq!(res.headers().get(&CL), None);
+    assert!(srv.load_body(res).await.unwrap().is_empty());
+
+    let res = srv.get("/body").send().await.unwrap();
+    assert_eq!(res.status(), http::StatusCode::NOT_MODIFIED);
+    assert_eq!(res.headers().get(&CL), None);
+    assert!(srv.load_body(res).await.unwrap().is_empty());
+
+    let res = srv.get("/cl-none").send().await.unwrap();
+    assert_eq!(res.status(), http::StatusCode::NOT_MODIFIED);
+    assert_eq!(
+        res.headers().get(&CL),
+        Some(&header::HeaderValue::from_static("24")),
+    );
+    assert!(srv.load_body(res).await.unwrap().is_empty());
+
+    let res = srv.get("/cl-body").send().await.unwrap();
+    assert_eq!(res.status(), http::StatusCode::NOT_MODIFIED);
+    assert_eq!(
+        res.headers().get(&CL),
+        Some(&header::HeaderValue::from_static("4")),
+    );
+    // server does not prevent payload from being sent but clients may choose not to read it
+    // TODO: this is probably a bug, especially since CL header can differ in length from the body
+    assert!(!srv.load_body(res).await.unwrap().is_empty());
+
+    // TODO: add stream response tests
+
+    srv.stop().await;
+}
--- a/actix-multipart/CHANGES.md
+++ b/actix-multipart/CHANGES.md
@@ -3,6 +3,17 @@
 ## Unreleased - 2021-xx-xx


+## 0.4.0-beta.8 - 2021-11-22
+* Ensure a correct Content-Disposition header is included in every part of a multipart message. [#2451]
+* Added `MultipartError::NoContentDisposition` variant. [#2451]
+* Since Content-Disposition is now ensured, `Field::content_disposition` is now infallible. [#2451]
+* Added `Field::name` method for getting the field name. [#2451]
+* `MultipartError` now marks variants with inner errors as the source. [#2451]
+* `MultipartError` is now marked as non-exhaustive. [#2451]
+
+[#2451]: https://github.com/actix/actix-web/pull/2451
+
+
 ## 0.4.0-beta.7 - 2021-10-20
 * Minimum supported Rust version (MSRV) is now 1.52.

--- a/actix-multipart/Cargo.toml
+++ b/actix-multipart/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "actix-multipart"
-version = "0.4.0-beta.7"
+version = "0.4.0-beta.8"
 authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
 description = "Multipart form support for Actix Web"
 keywords = ["http", "web", "framework", "async", "futures"]
@@ -29,6 +29,6 @@ twoway = "0.2"

 [dev-dependencies]
 actix-rt = "2.2"
-actix-http = "3.0.0-beta.12"
+actix-http = "3.0.0-beta.13"
 tokio = { version = "1", features = ["sync"] }
 tokio-stream = "0.1"
--- a/actix-multipart/README.md
+++ b/actix-multipart/README.md
@@ -3,11 +3,11 @@
 > 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.7)](https://docs.rs/actix-multipart/0.4.0-beta.7)
+[![Documentation](https://docs.rs/actix-multipart/badge.svg?version=0.4.0-beta.8)](https://docs.rs/actix-multipart/0.4.0-beta.8)
 [![Version](https://img.shields.io/badge/rustc-1.52+-ab6000.svg)](https://blog.rust-lang.org/2021/05/06/Rust-1.52.0.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.7/status.svg)](https://deps.rs/crate/actix-multipart/0.4.0-beta.7)
+[![dependency status](https://deps.rs/crate/actix-multipart/0.4.0-beta.8/status.svg)](https://deps.rs/crate/actix-multipart/0.4.0-beta.8)
 [![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)

--- a/actix-multipart/src/error.rs
+++ b/actix-multipart/src/error.rs
@@ -2,39 +2,52 @@
 use actix_web::error::{ParseError, PayloadError};
 use actix_web::http::StatusCode;
 use actix_web::ResponseError;
-use derive_more::{Display, From};
+use derive_more::{Display, Error, From};

 /// A set of errors that can occur during parsing multipart streams
-#[derive(Debug, Display, From)]
+#[non_exhaustive]
+#[derive(Debug, Display, From, Error)]
 pub enum MultipartError {
+    /// Content-Disposition header is not found or is not equal to "form-data".
+    ///
+    /// According to [RFC 7578](https://tools.ietf.org/html/rfc7578#section-4.2) a
+    /// Content-Disposition header must always be present and equal to "form-data".
+    #[display(fmt = "No Content-Disposition `form-data` header")]
+    NoContentDisposition,
+
    /// Content-Type header is not found
-    #[display(fmt = "No Content-type header found")]
+    #[display(fmt = "No Content-Type header found")]
    NoContentType,
+
    /// Can not parse Content-Type header
    #[display(fmt = "Can not parse Content-Type header")]
    ParseContentType,
+
    /// Multipart boundary is not found
    #[display(fmt = "Multipart boundary is not found")]
    Boundary,
+
    /// Nested multipart is not supported
    #[display(fmt = "Nested multipart is not supported")]
    Nested,
+
    /// Multipart stream is incomplete
    #[display(fmt = "Multipart stream is incomplete")]
    Incomplete,
+
    /// Error during field parsing
    #[display(fmt = "{}", _0)]
    Parse(ParseError),
+
    /// Payload error
    #[display(fmt = "{}", _0)]
    Payload(PayloadError),
+
    /// Not consumed
    #[display(fmt = "Multipart stream is not consumed")]
    NotConsumed,
 }

-impl std::error::Error for MultipartError {}
-
 /// Return `BadRequest` for `MultipartError`
 impl ResponseError for MultipartError {
    fn status_code(&self) -> StatusCode {
--- a/actix-multipart/src/server.rs
+++ b/actix-multipart/src/server.rs
@@ -1,15 +1,20 @@
 //! Multipart response payload support.

-use std::cell::{Cell, RefCell, RefMut};
-use std::convert::TryFrom;
-use std::marker::PhantomData;
-use std::pin::Pin;
-use std::rc::Rc;
-use std::task::{Context, Poll};
-use std::{cmp, fmt};
+use std::{
+    cell::{Cell, RefCell, RefMut},
+    cmp,
+    convert::TryFrom,
+    fmt,
+    marker::PhantomData,
+    pin::Pin,
+    rc::Rc,
+    task::{Context, Poll},
+};

-use actix_web::error::{ParseError, PayloadError};
-use actix_web::http::header::{self, ContentDisposition, HeaderMap, HeaderName, HeaderValue};
+use actix_web::{
+    error::{ParseError, PayloadError},
+    http::header::{self, ContentDisposition, HeaderMap, HeaderName, HeaderValue},
+};
 use bytes::{Bytes, BytesMut};
 use futures_core::stream::{LocalBoxStream, Stream};
 use futures_util::stream::StreamExt as _;
@@ -40,10 +45,13 @@ enum InnerMultipartItem {
 enum InnerState {
    /// Stream eof
    Eof,
+
    /// Skip data until first boundary
    FirstBoundary,
+
    /// Reading boundary
    Boundary,
+
    /// Reading Headers,
    Headers,
 }
@@ -332,31 +340,55 @@ impl InnerMultipart {
                return Poll::Pending;
            };

-            // content type
-            let mut mt = mime::APPLICATION_OCTET_STREAM;
-            if let Some(content_type) = headers.get(&header::CONTENT_TYPE) {
-                if let Ok(content_type) = content_type.to_str() {
-                    if let Ok(ct) = content_type.parse::<mime::Mime>() {
-                        mt = ct;
-                    }
-                }
-            }
+            // According to [RFC 7578](https://tools.ietf.org/html/rfc7578#section-4.2) a
+            // Content-Disposition header must always be present and set to "form-data".
+
+            let content_disposition = headers
+                .get(&header::CONTENT_DISPOSITION)
+                .and_then(|cd| ContentDisposition::from_raw(cd).ok())
+                .filter(|content_disposition| {
+                    let is_form_data =
+                        content_disposition.disposition == header::DispositionType::FormData;
+
+                    let has_field_name = content_disposition
+                        .parameters
+                        .iter()
+                        .any(|param| matches!(param, header::DispositionParam::Name(_)));
+
+                    is_form_data && has_field_name
+                });
+
+            let cd = if let Some(content_disposition) = content_disposition {
+                content_disposition
+            } else {
+                return Poll::Ready(Some(Err(MultipartError::NoContentDisposition)));
+            };
+
+            let ct: mime::Mime = headers
+                .get(&header::CONTENT_TYPE)
+                .and_then(|ct| ct.to_str().ok())
+                .and_then(|ct| ct.parse().ok())
+                .unwrap_or(mime::APPLICATION_OCTET_STREAM);

            self.state = InnerState::Boundary;

-            // nested multipart stream
-            if mt.type_() == mime::MULTIPART {
-                Poll::Ready(Some(Err(MultipartError::Nested)))
-            } else {
-                let field = Rc::new(RefCell::new(InnerField::new(
-                    self.payload.clone(),
-                    self.boundary.clone(),
-                    &headers,
-                )?));
-                self.item = InnerMultipartItem::Field(Rc::clone(&field));
-
-                Poll::Ready(Some(Ok(Field::new(safety.clone(cx), headers, mt, field))))
+            // nested multipart stream is not supported
+            if ct.type_() == mime::MULTIPART {
+                return Poll::Ready(Some(Err(MultipartError::Nested)));
            }
+
+            let field =
+                InnerField::new_in_rc(self.payload.clone(), self.boundary.clone(), &headers)?;
+
+            self.item = InnerMultipartItem::Field(Rc::clone(&field));
+
+            Poll::Ready(Some(Ok(Field::new(
+                safety.clone(cx),
+                headers,
+                ct,
+                cd,
+                field,
+            ))))
        }
    }
 }
@@ -371,6 +403,7 @@ impl Drop for InnerMultipart {
 /// A single field in a multipart stream
 pub struct Field {
    ct: mime::Mime,
+    cd: ContentDisposition,
    headers: HeaderMap,
    inner: Rc<RefCell<InnerField>>,
    safety: Safety,
@@ -381,35 +414,51 @@ impl Field {
        safety: Safety,
        headers: HeaderMap,
        ct: mime::Mime,
+        cd: ContentDisposition,
        inner: Rc<RefCell<InnerField>>,
    ) -> Self {
        Field {
            ct,
+            cd,
            headers,
            inner,
            safety,
        }
    }

-    /// Get a map of headers
+    /// Returns a reference to the field's header map.
    pub fn headers(&self) -> &HeaderMap {
        &self.headers
    }

-    /// Get the content type of the field
+    /// Returns a reference to the field's content (mime) type.
    pub fn content_type(&self) -> &mime::Mime {
        &self.ct
    }

-    /// Get the content disposition of the field, if it exists
-    pub fn content_disposition(&self) -> Option<ContentDisposition> {
-        // RFC 7578: 'Each part MUST contain a Content-Disposition header field
-        // where the disposition type is "form-data".'
-        if let Some(content_disposition) = self.headers.get(&header::CONTENT_DISPOSITION) {
-            ContentDisposition::from_raw(content_disposition).ok()
-        } else {
-            None
-        }
+    /// Returns the field's Content-Disposition.
+    ///
+    /// Per [RFC 7578 §4.2]: 'Each part MUST contain a Content-Disposition header field where the
+    /// disposition type is "form-data". The Content-Disposition header field MUST also contain an
+    /// additional parameter of "name"; the value of the "name" parameter is the original field name
+    /// from the form.'
+    ///
+    /// This crate validates that it exists before returning a `Field`. As such, it is safe to
+    /// unwrap `.content_disposition().get_name()`. The [name](Self::name) method is provided as
+    /// a convenience.
+    ///
+    /// [RFC 7578 §4.2]: https://datatracker.ietf.org/doc/html/rfc7578#section-4.2
+    pub fn content_disposition(&self) -> &ContentDisposition {
+        &self.cd
+    }
+
+    /// Returns the field's name.
+    ///
+    /// See [content_disposition] regarding guarantees about
+    pub fn name(&self) -> &str {
+        self.content_disposition()
+            .get_name()
+            .expect("field name should be guaranteed to exist in multipart form-data")
    }
 }

@@ -451,20 +500,23 @@ struct InnerField {
 }

 impl InnerField {
+    fn new_in_rc(
+        payload: PayloadRef,
+        boundary: String,
+        headers: &HeaderMap,
+    ) -> Result<Rc<RefCell<InnerField>>, PayloadError> {
+        Self::new(payload, boundary, headers).map(|this| Rc::new(RefCell::new(this)))
+    }
+
    fn new(
        payload: PayloadRef,
        boundary: String,
        headers: &HeaderMap,
    ) -> Result<InnerField, PayloadError> {
        let len = if let Some(len) = headers.get(&header::CONTENT_LENGTH) {
-            if let Ok(s) = len.to_str() {
-                if let Ok(len) = s.parse::<u64>() {
-                    Some(len)
-                } else {
-                    return Err(PayloadError::Incomplete(None));
-                }
-            } else {
-                return Err(PayloadError::Incomplete(None));
+            match len.to_str().ok().and_then(|len| len.parse::<u64>().ok()) {
+                Some(len) => Some(len),
+                None => return Err(PayloadError::Incomplete(None)),
            }
        } else {
            None
@@ -658,9 +710,8 @@ impl Clone for PayloadRef {
    }
 }

-/// Counter. It tracks of number of clones of payloads and give access to
-/// payload only to top most task panics if Safety get destroyed and it not top
-/// most task.
+/// Counter. It tracks of number of clones of payloads and give access to payload only to top most
+/// task panics if Safety get destroyed and it not top most task.
 #[derive(Debug)]
 struct Safety {
    task: LocalWaker,
@@ -707,11 +758,12 @@ impl Drop for Safety {
        if Rc::strong_count(&self.payload) != self.level {
            self.clean.set(true);
        }
+
        self.task.wake();
    }
 }

-/// Payload buffer
+/// Payload buffer.
 struct PayloadBuffer {
    eof: bool,
    buf: BytesMut,
@@ -719,7 +771,7 @@ struct PayloadBuffer {
 }

 impl PayloadBuffer {
-    /// Create new `PayloadBuffer` instance
+    /// Constructs new `PayloadBuffer` instance.
    fn new<S>(stream: S) -> Self
    where
        S: Stream<Item = Result<Bytes, PayloadError>> + 'static,
@@ -767,7 +819,7 @@ impl PayloadBuffer {
    }

    /// Read until specified ending
-    pub fn read_until(&mut self, line: &[u8]) -> Result<Option<Bytes>, MultipartError> {
+    fn read_until(&mut self, line: &[u8]) -> Result<Option<Bytes>, MultipartError> {
        let res = twoway::find_bytes(&self.buf, line)
            .map(|idx| self.buf.split_to(idx + line.len()).freeze());

@@ -779,12 +831,12 @@ impl PayloadBuffer {
    }

    /// Read bytes until new line delimiter
-    pub fn readline(&mut self) -> Result<Option<Bytes>, MultipartError> {
+    fn readline(&mut self) -> Result<Option<Bytes>, MultipartError> {
        self.read_until(b"\n")
    }

    /// Read bytes until new line delimiter or eof
-    pub fn readline_or_eof(&mut self) -> Result<Option<Bytes>, MultipartError> {
+    fn readline_or_eof(&mut self) -> Result<Option<Bytes>, MultipartError> {
        match self.readline() {
            Err(MultipartError::Incomplete) if self.eof => Ok(Some(self.buf.split().freeze())),
            line => line,
@@ -792,7 +844,7 @@ impl PayloadBuffer {
    }

    /// Put unprocessed data back to the buffer
-    pub fn unprocessed(&mut self, data: Bytes) {
+    fn unprocessed(&mut self, data: Bytes) {
        let buf = BytesMut::from(data.as_ref());
        let buf = std::mem::replace(&mut self.buf, buf);
        self.buf.extend_from_slice(&buf);
@@ -914,6 +966,7 @@ mod tests {
             Content-Type: text/plain; charset=utf-8\r\nContent-Length: 4\r\n\r\n\
             test\r\n\
             --abbc761f78ff4d7cb7573b5a23f96ef0\r\n\
+             Content-Disposition: form-data; name=\"file\"; filename=\"fn.txt\"\r\n\
             Content-Type: text/plain; charset=utf-8\r\nContent-Length: 4\r\n\r\n\
             data\r\n\
             --abbc761f78ff4d7cb7573b5a23f96ef0--\r\n",
@@ -965,7 +1018,7 @@ mod tests {
        let mut multipart = Multipart::new(&headers, payload);
        match multipart.next().await {
            Some(Ok(mut field)) => {
-                let cd = field.content_disposition().unwrap();
+                let cd = field.content_disposition();
                assert_eq!(cd.disposition, DispositionType::FormData);
                assert_eq!(cd.parameters[0], DispositionParam::Name("file".into()));

@@ -1027,7 +1080,7 @@ mod tests {
        let mut multipart = Multipart::new(&headers, payload);
        match multipart.next().await.unwrap() {
            Ok(mut field) => {
-                let cd = field.content_disposition().unwrap();
+                let cd = field.content_disposition();
                assert_eq!(cd.disposition, DispositionType::FormData);
                assert_eq!(cd.parameters[0], DispositionParam::Name("file".into()));

@@ -1182,4 +1235,59 @@ mod tests {
            _ => unreachable!(),
        }
    }
+
+    #[actix_rt::test]
+    async fn no_content_disposition() {
+        let bytes = Bytes::from(
+            "testasdadsad\r\n\
+             --abbc761f78ff4d7cb7573b5a23f96ef0\r\n\
+             Content-Type: text/plain; charset=utf-8\r\nContent-Length: 4\r\n\r\n\
+             test\r\n\
+             --abbc761f78ff4d7cb7573b5a23f96ef0\r\n",
+        );
+        let mut headers = HeaderMap::new();
+        headers.insert(
+            header::CONTENT_TYPE,
+            header::HeaderValue::from_static(
+                "multipart/mixed; boundary=\"abbc761f78ff4d7cb7573b5a23f96ef0\"",
+            ),
+        );
+        let payload = SlowStream::new(bytes);
+
+        let mut multipart = Multipart::new(&headers, payload);
+        let res = multipart.next().await.unwrap();
+        assert!(res.is_err());
+        assert!(matches!(
+            res.unwrap_err(),
+            MultipartError::NoContentDisposition,
+        ));
+    }
+
+    #[actix_rt::test]
+    async fn no_name_in_content_disposition() {
+        let bytes = Bytes::from(
+            "testasdadsad\r\n\
+             --abbc761f78ff4d7cb7573b5a23f96ef0\r\n\
+             Content-Disposition: form-data; filename=\"fn.txt\"\r\n\
+             Content-Type: text/plain; charset=utf-8\r\nContent-Length: 4\r\n\r\n\
+             test\r\n\
+             --abbc761f78ff4d7cb7573b5a23f96ef0\r\n",
+        );
+        let mut headers = HeaderMap::new();
+        headers.insert(
+            header::CONTENT_TYPE,
+            header::HeaderValue::from_static(
+                "multipart/mixed; boundary=\"abbc761f78ff4d7cb7573b5a23f96ef0\"",
+            ),
+        );
+        let payload = SlowStream::new(bytes);
+
+        let mut multipart = Multipart::new(&headers, payload);
+        let res = multipart.next().await.unwrap();
+        assert!(res.is_err());
+        assert!(matches!(
+            res.unwrap_err(),
+            MultipartError::NoContentDisposition,
+        ));
+    }
 }
--- a/actix-test/CHANGES.md
+++ b/actix-test/CHANGES.md
@@ -3,6 +3,12 @@
 ## Unreleased - 2021-xx-xx


+## 0.1.0-beta.7 - 2021-11-22
+* Fix compatibility with experimental `io-uring` feature of `actix-rt`. [#2408]
+
+[#2408]: https://github.com/actix/actix-web/pull/2408
+
+
 ## 0.1.0-beta.6 - 2021-11-15
 * No significant changes from `0.1.0-beta.5`.

--- a/actix-test/Cargo.toml
+++ b/actix-test/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "actix-test"
-version = "0.1.0-beta.6"
+version = "0.1.0-beta.7"
 authors = [
    "Nikolay Kim <fafhrd91@gmail.com>",
    "Rob Ede <robjtede@icloud.com>",
@@ -28,14 +28,14 @@ rustls = ["tls-rustls", "actix-http/rustls", "awc/rustls"]
 openssl = ["tls-openssl", "actix-http/openssl", "awc/openssl"]

 [dependencies]
-actix-codec = "0.4.0"
-actix-http = "3.0.0-beta.12"
-actix-http-test = "3.0.0-beta.6"
+actix-codec = "0.4.1"
+actix-http = "3.0.0-beta.13"
+actix-http-test = "3.0.0-beta.7"
 actix-service = "2.0.0"
 actix-utils = "3.0.0"
 actix-web = { version = "4.0.0-beta.11", default-features = false, features = ["cookies"] }
 actix-rt = "2.1"
-awc = { version = "3.0.0-beta.10", default-features = false, features = ["cookies"] }
+awc = { version = "3.0.0-beta.11", 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 = [] }
--- a/actix-test/src/lib.rs
+++ b/actix-test/src/lib.rs
@@ -146,156 +146,183 @@ where

    // run server in separate orphaned thread
    thread::spawn(move || {
-        let sys = rt::System::new();
-        let tcp = net::TcpListener::bind("127.0.0.1:0").unwrap();
-        let local_addr = tcp.local_addr().unwrap();
-        let factory = factory.clone();
-        let srv_cfg = cfg.clone();
-        let timeout = cfg.client_timeout;
-        let builder = Server::build().workers(1).disable_signals().system_exit();
+        rt::System::new().block_on(async move {
+            let tcp = net::TcpListener::bind("127.0.0.1:0").unwrap();
+            let local_addr = tcp.local_addr().unwrap();
+            let factory = factory.clone();
+            let srv_cfg = cfg.clone();
+            let timeout = cfg.client_timeout;

-        let srv = match srv_cfg.stream {
-            StreamType::Tcp => match srv_cfg.tp {
-                HttpVer::Http1 => builder.listen("test", tcp, move || {
-                    let app_cfg =
-                        AppConfig::__priv_test_new(false, local_addr.to_string(), local_addr);
+            let builder = Server::build().workers(1).disable_signals().system_exit();

-                    let fac = factory()
-                        .into_factory()
-                        .map_err(|err| err.into().error_response());
+            let srv = match srv_cfg.stream {
+                StreamType::Tcp => match srv_cfg.tp {
+                    HttpVer::Http1 => builder.listen("test", tcp, move || {
+                        let app_cfg = AppConfig::__priv_test_new(
+                            false,
+                            local_addr.to_string(),
+                            local_addr,
+                        );

-                    HttpService::build()
-                        .client_timeout(timeout)
-                        .h1(map_config(fac, move |_| app_cfg.clone()))
-                        .tcp()
-                }),
-                HttpVer::Http2 => builder.listen("test", tcp, move || {
-                    let app_cfg =
-                        AppConfig::__priv_test_new(false, local_addr.to_string(), local_addr);
+                        let fac = factory()
+                            .into_factory()
+                            .map_err(|err| err.into().error_response());

-                    let fac = factory()
-                        .into_factory()
-                        .map_err(|err| err.into().error_response());
+                        HttpService::build()
+                            .client_timeout(timeout)
+                            .h1(map_config(fac, move |_| app_cfg.clone()))
+                            .tcp()
+                    }),
+                    HttpVer::Http2 => builder.listen("test", tcp, move || {
+                        let app_cfg = AppConfig::__priv_test_new(
+                            false,
+                            local_addr.to_string(),
+                            local_addr,
+                        );

-                    HttpService::build()
-                        .client_timeout(timeout)
-                        .h2(map_config(fac, move |_| app_cfg.clone()))
-                        .tcp()
-                }),
-                HttpVer::Both => builder.listen("test", tcp, move || {
-                    let app_cfg =
-                        AppConfig::__priv_test_new(false, local_addr.to_string(), local_addr);
+                        let fac = factory()
+                            .into_factory()
+                            .map_err(|err| err.into().error_response());

-                    let fac = factory()
-                        .into_factory()
-                        .map_err(|err| err.into().error_response());
+                        HttpService::build()
+                            .client_timeout(timeout)
+                            .h2(map_config(fac, move |_| app_cfg.clone()))
+                            .tcp()
+                    }),
+                    HttpVer::Both => builder.listen("test", tcp, move || {
+                        let app_cfg = AppConfig::__priv_test_new(
+                            false,
+                            local_addr.to_string(),
+                            local_addr,
+                        );

-                    HttpService::build()
-                        .client_timeout(timeout)
-                        .finish(map_config(fac, move |_| app_cfg.clone()))
-                        .tcp()
-                }),
-            },
-            #[cfg(feature = "openssl")]
-            StreamType::Openssl(acceptor) => match cfg.tp {
-                HttpVer::Http1 => builder.listen("test", tcp, move || {
-                    let app_cfg =
-                        AppConfig::__priv_test_new(false, local_addr.to_string(), local_addr);
+                        let fac = factory()
+                            .into_factory()
+                            .map_err(|err| err.into().error_response());

-                    let fac = factory()
-                        .into_factory()
-                        .map_err(|err| err.into().error_response());
+                        HttpService::build()
+                            .client_timeout(timeout)
+                            .finish(map_config(fac, move |_| app_cfg.clone()))
+                            .tcp()
+                    }),
+                },
+                #[cfg(feature = "openssl")]
+                StreamType::Openssl(acceptor) => match cfg.tp {
+                    HttpVer::Http1 => builder.listen("test", tcp, move || {
+                        let app_cfg = AppConfig::__priv_test_new(
+                            false,
+                            local_addr.to_string(),
+                            local_addr,
+                        );

-                    HttpService::build()
-                        .client_timeout(timeout)
-                        .h1(map_config(fac, move |_| app_cfg.clone()))
-                        .openssl(acceptor.clone())
-                }),
-                HttpVer::Http2 => builder.listen("test", tcp, move || {
-                    let app_cfg =
-                        AppConfig::__priv_test_new(false, local_addr.to_string(), local_addr);
+                        let fac = factory()
+                            .into_factory()
+                            .map_err(|err| err.into().error_response());

-                    let fac = factory()
-                        .into_factory()
-                        .map_err(|err| err.into().error_response());
+                        HttpService::build()
+                            .client_timeout(timeout)
+                            .h1(map_config(fac, move |_| app_cfg.clone()))
+                            .openssl(acceptor.clone())
+                    }),
+                    HttpVer::Http2 => builder.listen("test", tcp, move || {
+                        let app_cfg = AppConfig::__priv_test_new(
+                            false,
+                            local_addr.to_string(),
+                            local_addr,
+                        );

-                    HttpService::build()
-                        .client_timeout(timeout)
-                        .h2(map_config(fac, move |_| app_cfg.clone()))
-                        .openssl(acceptor.clone())
-                }),
-                HttpVer::Both => builder.listen("test", tcp, move || {
-                    let app_cfg =
-                        AppConfig::__priv_test_new(false, local_addr.to_string(), local_addr);
+                        let fac = factory()
+                            .into_factory()
+                            .map_err(|err| err.into().error_response());

-                    let fac = factory()
-                        .into_factory()
-                        .map_err(|err| err.into().error_response());
+                        HttpService::build()
+                            .client_timeout(timeout)
+                            .h2(map_config(fac, move |_| app_cfg.clone()))
+                            .openssl(acceptor.clone())
+                    }),
+                    HttpVer::Both => builder.listen("test", tcp, move || {
+                        let app_cfg = AppConfig::__priv_test_new(
+                            false,
+                            local_addr.to_string(),
+                            local_addr,
+                        );

-                    HttpService::build()
-                        .client_timeout(timeout)
-                        .finish(map_config(fac, move |_| app_cfg.clone()))
-                        .openssl(acceptor.clone())
-                }),
-            },
-            #[cfg(feature = "rustls")]
-            StreamType::Rustls(config) => match cfg.tp {
-                HttpVer::Http1 => builder.listen("test", tcp, move || {
-                    let app_cfg =
-                        AppConfig::__priv_test_new(false, local_addr.to_string(), local_addr);
+                        let fac = factory()
+                            .into_factory()
+                            .map_err(|err| err.into().error_response());

-                    let fac = factory()
-                        .into_factory()
-                        .map_err(|err| err.into().error_response());
+                        HttpService::build()
+                            .client_timeout(timeout)
+                            .finish(map_config(fac, move |_| app_cfg.clone()))
+                            .openssl(acceptor.clone())
+                    }),
+                },
+                #[cfg(feature = "rustls")]
+                StreamType::Rustls(config) => match cfg.tp {
+                    HttpVer::Http1 => builder.listen("test", tcp, move || {
+                        let app_cfg = AppConfig::__priv_test_new(
+                            false,
+                            local_addr.to_string(),
+                            local_addr,
+                        );

-                    HttpService::build()
-                        .client_timeout(timeout)
-                        .h1(map_config(fac, move |_| app_cfg.clone()))
-                        .rustls(config.clone())
-                }),
-                HttpVer::Http2 => builder.listen("test", tcp, move || {
-                    let app_cfg =
-                        AppConfig::__priv_test_new(false, local_addr.to_string(), local_addr);
+                        let fac = factory()
+                            .into_factory()
+                            .map_err(|err| err.into().error_response());

-                    let fac = factory()
-                        .into_factory()
-                        .map_err(|err| err.into().error_response());
+                        HttpService::build()
+                            .client_timeout(timeout)
+                            .h1(map_config(fac, move |_| app_cfg.clone()))
+                            .rustls(config.clone())
+                    }),
+                    HttpVer::Http2 => builder.listen("test", tcp, move || {
+                        let app_cfg = AppConfig::__priv_test_new(
+                            false,
+                            local_addr.to_string(),
+                            local_addr,
+                        );

-                    HttpService::build()
-                        .client_timeout(timeout)
-                        .h2(map_config(fac, move |_| app_cfg.clone()))
-                        .rustls(config.clone())
-                }),
-                HttpVer::Both => builder.listen("test", tcp, move || {
-                    let app_cfg =
-                        AppConfig::__priv_test_new(false, local_addr.to_string(), local_addr);
+                        let fac = factory()
+                            .into_factory()
+                            .map_err(|err| err.into().error_response());

-                    let fac = factory()
-                        .into_factory()
-                        .map_err(|err| err.into().error_response());
+                        HttpService::build()
+                            .client_timeout(timeout)
+                            .h2(map_config(fac, move |_| app_cfg.clone()))
+                            .rustls(config.clone())
+                    }),
+                    HttpVer::Both => builder.listen("test", tcp, move || {
+                        let app_cfg = AppConfig::__priv_test_new(
+                            false,
+                            local_addr.to_string(),
+                            local_addr,
+                        );

-                    HttpService::build()
-                        .client_timeout(timeout)
-                        .finish(map_config(fac, move |_| app_cfg.clone()))
-                        .rustls(config.clone())
-                }),
-            },
-        }
-        .expect("test server could not be created");
+                        let fac = factory()
+                            .into_factory()
+                            .map_err(|err| err.into().error_response());

-        let srv = srv.run();
-        started_tx
-            .send((System::current(), srv.handle(), local_addr))
-            .unwrap();
+                        HttpService::build()
+                            .client_timeout(timeout)
+                            .finish(map_config(fac, move |_| app_cfg.clone()))
+                            .rustls(config.clone())
+                    }),
+                },
+            }
+            .expect("test server could not be created");

-        // drive server loop
-        sys.block_on(srv).unwrap();
+            let srv = srv.run();
+            started_tx
+                .send((System::current(), srv.handle(), local_addr))
+                .unwrap();

-        // start system event loop
-        sys.run().unwrap();
+            // drive server loop
+            srv.await.unwrap();
+
+            // notify TestServer that server and system have shut down
+            // all thread managed resources should be dropped at this point
+        });

-        // notify TestServer that server and system have shut down
-        // all thread managed resources should be dropped at this point
        let _ = thread_stop_tx.send(());
    });

@@ -520,12 +547,12 @@ impl TestServer {
        self.client.headers()
    }

-    /// Gracefully stop HTTP server.
+    /// Stop HTTP server.
    ///
-    /// Waits for spawned `Server` and `System` to shutdown gracefully.
+    /// Waits for spawned `Server` and `System` to shutdown (force) shutdown.
    pub async fn stop(mut self) {
        // signal server to stop
-        self.server.stop(true).await;
+        self.server.stop(false).await;

        // also signal system to stop
        // though this is handled by `ServerBuilder::exit_system` too
--- a/actix-web-actors/Cargo.toml
+++ b/actix-web-actors/Cargo.toml
@@ -15,8 +15,8 @@ path = "src/lib.rs"

 [dependencies]
 actix = { version = "0.12.0", default-features = false }
-actix-codec = "0.4.0"
-actix-http = "3.0.0-beta.12"
+actix-codec = "0.4.1"
+actix-http = "3.0.0-beta.13"
 actix-web = { version = "4.0.0-beta.11", default-features = false }

 bytes = "1"
@@ -27,8 +27,8 @@ tokio = { version = "1", features = ["sync"] }

 [dev-dependencies]
 actix-rt = "2.2"
-actix-test = "0.1.0-beta.6"
+actix-test = "0.1.0-beta.7"

-awc = { version = "3.0.0-beta.10", default-features = false }
-env_logger = "0.8"
+awc = { version = "3.0.0-beta.11", default-features = false }
+env_logger = "0.9"
 futures-util = { version = "0.3.7", default-features = false }
--- a/actix-web-codegen/Cargo.toml
+++ b/actix-web-codegen/Cargo.toml
@@ -23,7 +23,7 @@ actix-router = "0.5.0-beta.2"
 [dev-dependencies]
 actix-rt = "2.2"
 actix-macros = "0.2.3"
-actix-test = "0.1.0-beta.6"
+actix-test = "0.1.0-beta.7"
 actix-utils = "3.0.0"
 actix-web = "4.0.0-beta.11"

--- a/awc/CHANGES.md
+++ b/awc/CHANGES.md
@@ -3,7 +3,11 @@
 ## Unreleased - 2021-xx-xx


+## 3.0.0-beta.11 - 2021-11-22
+
+
 ## 3.0.0-beta.10 - 2021-11-15
+* No significant changes from `3.0.0-beta.9`.


 ## 3.0.0-beta.9 - 2021-10-20
--- a/awc/Cargo.toml
+++ b/awc/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "awc"
-version = "3.0.0-beta.10"
+version = "3.0.0-beta.11"
 authors = [
    "Nikolay Kim <fafhrd91@gmail.com>",
    "fakeshadow <24548779@qq.com>",
@@ -52,12 +52,17 @@ trust-dns = ["trust-dns-resolver"]
 # Don't rely on these whatsoever. They may disappear at anytime.
 __compress = []

+# Enable dangerous feature for testing and local network usage:
+# - HTTP/2 over TCP(No Tls).
+# DO NOT enable this over any internet use case.
+dangerous-h2c = []
+
 [dependencies]
-actix-codec = "0.4.0"
+actix-codec = "0.4.1"
 actix-service = "2.0.0"
-actix-http = "3.0.0-beta.12"
+actix-http = "3.0.0-beta.13"
 actix-rt = { version = "2.1", default-features = false }
-actix-tls = { version = "3.0.0-beta.7", features = ["connect"] }
+actix-tls = { version = "3.0.0-beta.9", features = ["connect"] }
 actix-utils = "3.0.0"

 ahash = "0.7"
@@ -89,15 +94,15 @@ trust-dns-resolver = { version = "0.20.0", optional = true }

 [dev-dependencies]
 actix-web = { version = "4.0.0-beta.11", features = ["openssl"] }
-actix-http = { version = "3.0.0-beta.12", features = ["openssl"] }
-actix-http-test = { version = "3.0.0-beta.6", features = ["openssl"] }
+actix-http = { version = "3.0.0-beta.13", features = ["openssl"] }
+actix-http-test = { version = "3.0.0-beta.7", features = ["openssl"] }
 actix-utils = "3.0.0"
 actix-server = "2.0.0-beta.9"
-actix-tls = { version = "3.0.0-beta.7", features = ["openssl", "rustls"] }
-actix-test = { version = "0.1.0-beta.6", features = ["openssl", "rustls"] }
+actix-tls = { version = "3.0.0-beta.9", features = ["openssl", "rustls"] }
+actix-test = { version = "0.1.0-beta.7", features = ["openssl", "rustls"] }

 brotli2 = "0.3.2"
-env_logger = "0.8"
+env_logger = "0.9"
 flate2 = "1.0.13"
 futures-util = { version = "0.3.7", default-features = false }
 rcgen = "0.8"
--- a/awc/README.md
+++ b/awc/README.md
@@ -3,9 +3,9 @@
 > 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.10)](https://docs.rs/awc/3.0.0-beta.10)
+[![Documentation](https://docs.rs/awc/badge.svg?version=3.0.0-beta.11)](https://docs.rs/awc/3.0.0-beta.11)
 ![MIT or Apache 2.0 licensed](https://img.shields.io/crates/l/awc)
-[![Dependency Status](https://deps.rs/crate/awc/3.0.0-beta.10/status.svg)](https://deps.rs/crate/awc/3.0.0-beta.10)
+[![Dependency Status](https://deps.rs/crate/awc/3.0.0-beta.11/status.svg)](https://deps.rs/crate/awc/3.0.0-beta.11)
 [![Chat on Discord](https://img.shields.io/discord/771444961383153695?label=chat&logo=discord)](https://discord.gg/NWpN5mmg3x)

 ## Documentation & Resources
--- a/awc/src/client/connector.rs
+++ b/awc/src/client/connector.rs
@@ -67,9 +67,9 @@ impl Connector<()> {
            > + Clone,
    > {
        Connector {
-            ssl: Self::build_ssl(vec![b"h2".to_vec(), b"http/1.1".to_vec()]),
            connector: new_connector(resolver::resolver()),
            config: ConnectorConfig::default(),
+            ssl: Self::build_ssl(vec![b"h2".to_vec(), b"http/1.1".to_vec()]),
        }
    }

@@ -189,7 +189,7 @@ where
            http::Version::HTTP_11 => vec![b"http/1.1".to_vec()],
            http::Version::HTTP_2 => vec![b"h2".to_vec(), b"http/1.1".to_vec()],
            _ => {
-                unimplemented!("actix-http:client: supported versions http/1.1, http/2")
+                unimplemented!("actix-http client only supports versions http/1.1 & http/2")
            }
        };
        self.ssl = Connector::build_ssl(versions);
@@ -279,7 +279,63 @@ where
        };

        let tls_service = match self.ssl {
-            SslConnector::None => None,
+            SslConnector::None => {
+                #[cfg(not(feature = "dangerous-h2c"))]
+                {
+                    None
+                }
+                #[cfg(feature = "dangerous-h2c")]
+                {
+                    use std::{
+                        future::{ready, Ready},
+                        io,
+                    };
+
+                    use actix_tls::connect::Connection;
+
+                    impl IntoConnectionIo for TcpConnection<Uri, Box<dyn ConnectionIo>> {
+                        fn into_connection_io(self) -> (Box<dyn ConnectionIo>, Protocol) {
+                            let io = self.into_parts().0;
+                            (io, Protocol::Http2)
+                        }
+                    }
+
+                    /// With the `dangerous-h2c` feature enabled, this connector uses a no-op TLS
+                    /// connection service that passes through plain TCP as a TLS connection.
+                    ///
+                    /// The protocol version of this fake TLS connection is set to be HTTP/2.
+                    #[derive(Clone)]
+                    struct NoOpTlsConnectorService;
+
+                    impl<T, U> Service<Connection<T, U>> for NoOpTlsConnectorService
+                    where
+                        U: ActixStream + 'static,
+                    {
+                        type Response = Connection<T, Box<dyn ConnectionIo>>;
+                        type Error = io::Error;
+                        type Future = Ready<Result<Self::Response, Self::Error>>;
+
+                        actix_service::always_ready!();
+
+                        fn call(&self, connection: Connection<T, U>) -> Self::Future {
+                            let (io, connection) = connection.replace_io(());
+                            let (_, connection) = connection.replace_io(Box::new(io) as _);
+
+                            ready(Ok(connection))
+                        }
+                    }
+
+                    let handshake_timeout = self.config.handshake_timeout;
+
+                    let tls_service = TlsConnectorService {
+                        tcp_service: tcp_service_inner,
+                        tls_service: NoOpTlsConnectorService,
+                        timeout: handshake_timeout,
+                    };
+
+                    Some(actix_service::boxed::rc_service(tls_service))
+                }
+            }
            #[cfg(feature = "openssl")]
            SslConnector::Openssl(tls) => {
                const H2: &[u8] = b"h2";
@@ -760,3 +816,42 @@ mod resolver {
        })
    }
 }
+
+#[cfg(feature = "dangerous-h2c")]
+#[cfg(test)]
+mod tests {
+    use std::convert::Infallible;
+
+    use actix_http::{HttpService, Request, Response, Version};
+    use actix_http_test::test_server;
+    use actix_service::ServiceFactoryExt as _;
+
+    use super::*;
+    use crate::Client;
+
+    #[actix_rt::test]
+    async fn h2c_connector() {
+        let mut srv = test_server(|| {
+            HttpService::build()
+                .h2(|_req: Request| async { Ok::<_, Infallible>(Response::ok()) })
+                .tcp()
+                .map_err(|_| ())
+        })
+        .await;
+
+        let connector = Connector {
+            connector: new_connector(resolver::resolver()),
+            config: ConnectorConfig::default(),
+            ssl: SslConnector::None,
+        };
+
+        let client = Client::builder().connector(connector).finish();
+
+        let request = client.get(srv.surl("/")).send();
+        let response = request.await.unwrap();
+        assert!(response.status().is_success());
+        assert_eq!(response.version(), Version::HTTP_2);
+
+        srv.stop().await;
+    }
+}
--- a/awc/src/client/h1proto.rs
+++ b/awc/src/client/h1proto.rs
@@ -70,7 +70,7 @@ where
    // RFC: https://tools.ietf.org/html/rfc7231#section-5.1.1
    let is_expect = if head.as_ref().headers.contains_key(EXPECT) {
        match body.size() {
-            BodySize::None | BodySize::Empty | BodySize::Sized(0) => {
+            BodySize::None | BodySize::Sized(0) => {
                let keep_alive = framed.codec_ref().keepalive();
                framed.io_mut().on_release(keep_alive);

@@ -104,7 +104,7 @@ where
    if do_send {
        // send request body
        match body.size() {
-            BodySize::None | BodySize::Empty | BodySize::Sized(0) => {}
+            BodySize::None | BodySize::Sized(0) => {}
            _ => send_body(body, pin_framed.as_mut()).await?,
        };

--- a/awc/src/client/h2proto.rs
+++ b/awc/src/client/h2proto.rs
@@ -36,10 +36,7 @@ where

    let head_req = head.as_ref().method == Method::HEAD;
    let length = body.size();
-    let eof = matches!(
-        length,
-        BodySize::None | BodySize::Empty | BodySize::Sized(0)
-    );
+    let eof = matches!(length, BodySize::None | BodySize::Sized(0));

    let mut req = Request::new(());
    *req.uri_mut() = head.as_ref().uri.clone();
@@ -52,13 +49,11 @@ where
    // Content length
    let _ = match length {
        BodySize::None => None,
-        BodySize::Stream => {
-            skip_len = false;
-            None
-        }
-        BodySize::Empty => req
+
+        BodySize::Sized(0) => req
            .headers_mut()
            .insert(CONTENT_LENGTH, HeaderValue::from_static("0")),
+
        BodySize::Sized(len) => {
            let mut buf = itoa::Buffer::new();

@@ -67,6 +62,11 @@ where
                HeaderValue::from_str(buf.format(len)).unwrap(),
            )
        }
+
+        BodySize::Stream => {
+            skip_len = false;
+            None
+        }
    };

    // Extracting extra headers from RequestHeadType. HeaderMap::new() does not allocate.
--- a/awc/src/connect.rs
+++ b/awc/src/connect.rs
@@ -8,7 +8,7 @@ use std::{

 use actix_codec::Framed;
 use actix_http::{
-    body::Body, h1::ClientCodec, Payload, RequestHead, RequestHeadType, ResponseHead,
+    body::AnyBody, h1::ClientCodec, Payload, RequestHead, RequestHeadType, ResponseHead,
 };
 use actix_service::Service;
 use futures_core::{future::LocalBoxFuture, ready};
@@ -30,7 +30,7 @@ pub type BoxConnectorService = Rc<
 pub type BoxedSocket = Box<dyn ConnectionIo>;

 pub enum ConnectRequest {
-    Client(RequestHeadType, Body, Option<net::SocketAddr>),
+    Client(RequestHeadType, AnyBody, Option<net::SocketAddr>),
    Tunnel(RequestHead, Option<net::SocketAddr>),
 }

--- a/awc/src/frozen.rs
+++ b/awc/src/frozen.rs
@@ -5,7 +5,7 @@ use futures_core::Stream;
 use serde::Serialize;

 use actix_http::{
-    body::Body,
+    body::AnyBody,
    http::{header::IntoHeaderValue, Error as HttpError, HeaderMap, HeaderName, Method, Uri},
    RequestHead,
 };
@@ -45,7 +45,7 @@ impl FrozenClientRequest {
    /// Send a body.
    pub fn send_body<B>(&self, body: B) -> SendClientRequest
    where
-        B: Into<Body>,
+        B: Into<AnyBody>,
    {
        RequestSender::Rc(self.head.clone(), None).send_body(
            self.addr,
@@ -158,7 +158,7 @@ impl FrozenSendBuilder {
    /// Complete request construction and send a body.
    pub fn send_body<B>(self, body: B) -> SendClientRequest
    where
-        B: Into<Body>,
+        B: Into<AnyBody>,
    {
        if let Some(e) = self.err {
            return e.into();
--- a/awc/src/middleware/redirect.rs
+++ b/awc/src/middleware/redirect.rs
@@ -8,7 +8,7 @@ use std::{
 };

 use actix_http::{
-    body::Body,
+    body::AnyBody,
    http::{header, Method, StatusCode, Uri},
    RequestHead, RequestHeadType,
 };
@@ -95,7 +95,7 @@ where
                };

                let body_opt = match body {
-                    Body::Bytes(ref b) => Some(b.clone()),
+                    AnyBody::Bytes(ref b) => Some(b.clone()),
                    _ => None,
                };

@@ -192,14 +192,14 @@ where
                        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,
+                                Some(ref bytes) => AnyBody::Bytes(bytes.clone()),
+                                // TODO: should this be AnyBody::Empty or AnyBody::None.
+                                _ => AnyBody::empty(),
                            }
                        } else {
                            body = None;
                            // remove body
-                            Body::None
+                            AnyBody::None
                        };

                        let mut headers = headers.take().unwrap();
--- a/awc/src/request.rs
+++ b/awc/src/request.rs
@@ -5,7 +5,7 @@ use futures_core::Stream;
 use serde::Serialize;

 use actix_http::{
-    body::Body,
+    body::AnyBody,
    http::{
        header::{self, IntoHeaderPair},
        ConnectionType, Error as HttpError, HeaderMap, HeaderValue, Method, Uri, Version,
@@ -115,10 +115,10 @@ impl ClientRequest {
        &self.head.method
    }

-    #[doc(hidden)]
    /// Set HTTP version of this request.
    ///
    /// By default requests's HTTP version depends on network stream
+    #[doc(hidden)]
    #[inline]
    pub fn version(mut self, version: Version) -> Self {
        self.head.version = version;
@@ -350,7 +350,7 @@ impl ClientRequest {
    /// Complete request construction and send body.
    pub fn send_body<B>(self, body: B) -> SendClientRequest
    where
-        B: Into<Body>,
+        B: Into<AnyBody>,
    {
        let slf = match self.prep_for_sending() {
            Ok(slf) => slf,
--- a/awc/src/sender.rs
+++ b/awc/src/sender.rs
@@ -9,7 +9,7 @@ use std::{
 };

 use actix_http::{
-    body::{Body, BodyStream},
+    body::{AnyBody, BodyStream},
    http::{
        header::{self, HeaderMap, HeaderName, IntoHeaderValue},
        Error as HttpError,
@@ -196,7 +196,7 @@ impl RequestSender {
        body: B,
    ) -> SendClientRequest
    where
-        B: Into<Body>,
+        B: Into<AnyBody>,
    {
        let req = match self {
            RequestSender::Owned(head) => {
@@ -236,7 +236,7 @@ impl RequestSender {
            response_decompress,
            timeout,
            config,
-            Body::Bytes(Bytes::from(body)),
+            AnyBody::Bytes(Bytes::from(body)),
        )
    }

@@ -265,7 +265,7 @@ impl RequestSender {
            response_decompress,
            timeout,
            config,
-            Body::Bytes(Bytes::from(body)),
+            AnyBody::Bytes(Bytes::from(body)),
        )
    }

@@ -286,7 +286,7 @@ impl RequestSender {
            response_decompress,
            timeout,
            config,
-            Body::from_message(BodyStream::new(stream)),
+            AnyBody::new_boxed(BodyStream::new(stream)),
        )
    }

@@ -297,7 +297,7 @@ impl RequestSender {
        timeout: Option<Duration>,
        config: &ClientConfig,
    ) -> SendClientRequest {
-        self.send_body(addr, response_decompress, timeout, config, Body::Empty)
+        self.send_body(addr, response_decompress, timeout, config, AnyBody::empty())
    }

    fn set_header_if_none<V>(&mut self, key: HeaderName, value: V) -> Result<(), HttpError>
--- a/awc/tests/test_client.rs
+++ b/awc/tests/test_client.rs
@@ -1,20 +1,26 @@
-use std::collections::HashMap;
-use std::io::{Read, Write};
-use std::net::{IpAddr, Ipv4Addr};
-use std::sync::atomic::{AtomicUsize, Ordering};
-use std::sync::Arc;
-use std::time::Duration;
+use std::{
+    collections::HashMap,
+    io::{Read, Write},
+    net::{IpAddr, Ipv4Addr},
+    sync::{
+        atomic::{AtomicUsize, Ordering},
+        Arc,
+    },
+    time::Duration,
+};

 use actix_utils::future::ok;
-use brotli2::write::BrotliEncoder;
 use bytes::Bytes;
 use cookie::Cookie;
-use flate2::read::GzDecoder;
-use flate2::write::GzEncoder;
-use flate2::Compression;
 use futures_util::stream;
 use rand::Rng;

+#[cfg(feature = "compress-brotli")]
+use brotli2::write::BrotliEncoder;
+
+#[cfg(feature = "compress-gzip")]
+use flate2::{read::GzDecoder, write::GzEncoder, Compression};
+
 use actix_http::{
    http::{self, StatusCode},
    HttpService,
@@ -24,7 +30,6 @@ use actix_service::{fn_service, map_config, ServiceFactoryExt as _};
 use actix_web::{
    dev::{AppConfig, BodyEncoding},
    http::header,
-    middleware::Compress,
    web, App, Error, HttpRequest, HttpResponse,
 };
 use awc::error::{JsonPayloadError, PayloadError, SendRequestError};
@@ -463,11 +468,12 @@ async fn test_with_query_parameter() {
    assert!(res.status().is_success());
 }

+#[cfg(feature = "compress-gzip")]
 #[actix_rt::test]
 async fn test_no_decompress() {
    let srv = actix_test::start(|| {
        App::new()
-            .wrap(Compress::default())
+            .wrap(actix_web::middleware::Compress::default())
            .service(web::resource("/").route(web::to(|| {
                let mut res = HttpResponse::Ok().body(STR);
                res.encoding(header::ContentEncoding::Gzip);
@@ -507,6 +513,7 @@ async fn test_no_decompress() {
    assert_eq!(Bytes::from(dec), Bytes::from_static(STR.as_ref()));
 }

+#[cfg(feature = "compress-gzip")]
 #[actix_rt::test]
 async fn test_client_gzip_encoding() {
    let srv = actix_test::start(|| {
@@ -530,6 +537,7 @@ async fn test_client_gzip_encoding() {
    assert_eq!(bytes, Bytes::from_static(STR.as_ref()));
 }

+#[cfg(feature = "compress-gzip")]
 #[actix_rt::test]
 async fn test_client_gzip_encoding_large() {
    let srv = actix_test::start(|| {
@@ -553,6 +561,7 @@ async fn test_client_gzip_encoding_large() {
    assert_eq!(bytes, Bytes::from(STR.repeat(10)));
 }

+#[cfg(feature = "compress-gzip")]
 #[actix_rt::test]
 async fn test_client_gzip_encoding_large_random() {
    let data = rand::thread_rng()
@@ -581,6 +590,7 @@ async fn test_client_gzip_encoding_large_random() {
    assert_eq!(bytes, Bytes::from(data));
 }

+#[cfg(feature = "compress-brotli")]
 #[actix_rt::test]
 async fn test_client_brotli_encoding() {
    let srv = actix_test::start(|| {
@@ -603,6 +613,7 @@ async fn test_client_brotli_encoding() {
    assert_eq!(bytes, Bytes::from_static(STR.as_ref()));
 }

+#[cfg(feature = "compress-brotli")]
 #[actix_rt::test]
 async fn test_client_brotli_encoding_large_random() {
    let data = rand::thread_rng()
--- a/awc/tests/test_connector.rs
+++ b/awc/tests/test_connector.rs
@@ -39,7 +39,7 @@ fn tls_config() -> SslAcceptor {

 #[actix_rt::test]
 async fn test_connection_window_size() {
-    let srv = test_server(move || {
+    let srv = test_server(|| {
        HttpService::build()
            .h2(map_config(
                App::new().service(web::resource("/").route(web::to(HttpResponse::Ok))),
--- a/src/app.rs
+++ b/src/app.rs
@@ -4,7 +4,7 @@ use std::future::Future;
 use std::marker::PhantomData;
 use std::rc::Rc;

-use actix_http::body::{Body, MessageBody};
+use actix_http::body::{AnyBody, MessageBody};
 use actix_http::{Extensions, Request};
 use actix_service::boxed::{self, BoxServiceFactory};
 use actix_service::{
@@ -39,7 +39,7 @@ pub struct App<T, B> {
    _phantom: PhantomData<B>,
 }

-impl App<AppEntry, Body> {
+impl App<AppEntry, AnyBody> {
    /// Create application builder. Application can be configured with a builder-like pattern.
    #[allow(clippy::new_without_default)]
    pub fn new() -> Self {
--- a/src/dev.rs
+++ b/src/dev.rs
@@ -14,7 +14,8 @@ 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};
+#[allow(deprecated)]
+pub use actix_http::body::{AnyBody, Body, BodySize, MessageBody, SizedStream};

 #[cfg(feature = "__compress")]
 pub use actix_http::encoding::Decoder as Decompress;
--- a/src/error/internal.rs
+++ b/src/error/internal.rs
@@ -1,6 +1,6 @@
 use std::{cell::RefCell, fmt, io::Write as _};

-use actix_http::{body::Body, header, StatusCode};
+use actix_http::{body::AnyBody, header, StatusCode};
 use bytes::{BufMut as _, BytesMut};

 use crate::{Error, HttpRequest, HttpResponse, Responder, ResponseError};
@@ -88,7 +88,7 @@ where
                    header::CONTENT_TYPE,
                    header::HeaderValue::from_static("text/plain; charset=utf-8"),
                );
-                res.set_body(Body::from(buf.into_inner()))
+                res.set_body(AnyBody::from(buf.into_inner()))
            }

            InternalErrorType::Response(ref resp) => {
--- a/src/handler.rs
+++ b/src/handler.rs
@@ -1,16 +1,13 @@
 use std::future::Future;
-use std::marker::PhantomData;
-use std::pin::Pin;
-use std::task::{Context, Poll};

-use actix_service::{Service, ServiceFactory};
-use actix_utils::future::{ready, Ready};
-use futures_core::ready;
-use pin_project::pin_project;
+use actix_service::{
+    boxed::{self, BoxServiceFactory},
+    fn_service,
+};

 use crate::{
    service::{ServiceRequest, ServiceResponse},
-    Error, FromRequest, HttpRequest, HttpResponse, Responder,
+    Error, FromRequest, HttpResponse, Responder,
 };

 /// A request handler is an async function that accepts zero or more parameters that can be
@@ -27,139 +24,26 @@ where
    fn call(&self, param: T) -> R;
 }

-#[doc(hidden)]
-/// Extract arguments from request, run factory function and make response.
-pub struct HandlerService<F, T, R>
+pub fn handler_service<F, T, R>(
+    handler: F,
+) -> BoxServiceFactory<(), ServiceRequest, ServiceResponse, Error, ()>
 where
    F: Handler<T, R>,
    T: FromRequest,
    R: Future,
    R::Output: Responder,
 {
-    hnd: F,
-    _phantom: PhantomData<(T, R)>,
-}
-
-impl<F, T, R> HandlerService<F, T, R>
-where
-    F: Handler<T, R>,
-    T: FromRequest,
-    R: Future,
-    R::Output: Responder,
-{
-    pub fn new(hnd: F) -> Self {
-        Self {
-            hnd,
-            _phantom: PhantomData,
+    boxed::factory(fn_service(move |req: ServiceRequest| {
+        let handler = handler.clone();
+        async move {
+            let (req, mut payload) = req.into_parts();
+            let res = match T::from_request(&req, &mut payload).await {
+                Err(err) => HttpResponse::from_error(err),
+                Ok(data) => handler.call(data).await.respond_to(&req),
+            };
+            Ok(ServiceResponse::new(req, res))
        }
-    }
-}
-
-impl<F, T, R> Clone for HandlerService<F, T, R>
-where
-    F: Handler<T, R>,
-    T: FromRequest,
-    R: Future,
-    R::Output: Responder,
-{
-    fn clone(&self) -> Self {
-        Self {
-            hnd: self.hnd.clone(),
-            _phantom: PhantomData,
-        }
-    }
-}
-
-impl<F, T, R> ServiceFactory<ServiceRequest> for HandlerService<F, T, R>
-where
-    F: Handler<T, R>,
-    T: FromRequest,
-    R: Future,
-    R::Output: Responder,
-{
-    type Response = ServiceResponse;
-    type Error = Error;
-    type Config = ();
-    type Service = Self;
-    type InitError = ();
-    type Future = Ready<Result<Self::Service, ()>>;
-
-    fn new_service(&self, _: ()) -> Self::Future {
-        ready(Ok(self.clone()))
-    }
-}
-
-/// HandlerService is both it's ServiceFactory and Service Type.
-impl<F, T, R> Service<ServiceRequest> for HandlerService<F, T, R>
-where
-    F: Handler<T, R>,
-    T: FromRequest,
-    R: Future,
-    R::Output: Responder,
-{
-    type Response = ServiceResponse;
-    type Error = Error;
-    type Future = HandlerServiceFuture<F, T, R>;
-
-    actix_service::always_ready!();
-
-    fn call(&self, req: ServiceRequest) -> Self::Future {
-        let (req, mut payload) = req.into_parts();
-        let fut = T::from_request(&req, &mut payload);
-        HandlerServiceFuture::Extract(fut, Some(req), self.hnd.clone())
-    }
-}
-
-#[doc(hidden)]
-#[pin_project(project = HandlerProj)]
-pub enum HandlerServiceFuture<F, T, R>
-where
-    F: Handler<T, R>,
-    T: FromRequest,
-    R: Future,
-    R::Output: Responder,
-{
-    Extract(#[pin] T::Future, Option<HttpRequest>, F),
-    Handle(#[pin] R, Option<HttpRequest>),
-}
-
-impl<F, T, R> Future for HandlerServiceFuture<F, T, R>
-where
-    F: Handler<T, R>,
-    T: FromRequest,
-    R: Future,
-    R::Output: Responder,
-{
-    // Error type in this future is a placeholder type.
-    // all instances of error must be converted to ServiceResponse and return in Ok.
-    type Output = Result<ServiceResponse, Error>;
-
-    fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
-        loop {
-            match self.as_mut().project() {
-                HandlerProj::Extract(fut, req, handle) => {
-                    match ready!(fut.poll(cx)) {
-                        Ok(item) => {
-                            let fut = handle.call(item);
-                            let state = HandlerServiceFuture::Handle(fut, req.take());
-                            self.as_mut().set(state);
-                        }
-                        Err(err) => {
-                            let req = req.take().unwrap();
-                            let res = HttpResponse::from_error(err.into());
-                            return Poll::Ready(Ok(ServiceResponse::new(req, res)));
-                        }
-                    };
-                }
-                HandlerProj::Handle(fut, req) => {
-                    let res = ready!(fut.poll(cx));
-                    let req = req.take().unwrap();
-                    let res = res.respond_to(&req);
-                    return Poll::Ready(Ok(ServiceResponse::new(req, res)));
-                }
-            }
-        }
-    }
+    }))
 }

 /// FromRequest trait impl for tuples
--- a/src/http/header/content_disposition.rs
+++ b/src/http/header/content_disposition.rs
@@ -34,15 +34,18 @@ fn split_once_and_trim(haystack: &str, needle: char) -> (&str, &str) {
 /// The implied disposition of the content of the HTTP body.
 #[derive(Clone, Debug, PartialEq)]
 pub enum DispositionType {
-    /// Inline implies default processing
+    /// Inline implies default processing.
    Inline,
+
    /// Attachment implies that the recipient should prompt the user to save the response locally,
    /// rather than process it normally (as per its media type).
    Attachment,
-    /// Used in *multipart/form-data* as defined in
-    /// [RFC7578](https://tools.ietf.org/html/rfc7578) to carry the field name and the file name.
+
+    /// Used in *multipart/form-data* as defined in [RFC7578](https://tools.ietf.org/html/rfc7578)
+    /// to carry the field name and optional filename.
    FormData,
-    /// Extension type. Should be handled by recipients the same way as Attachment
+
+    /// Extension type. Should be handled by recipients the same way as Attachment.
    Ext(String),
 }

@@ -76,6 +79,7 @@ pub enum DispositionParam {
    /// For [`DispositionType::FormData`] (i.e. *multipart/form-data*), the name of an field from
    /// the form.
    Name(String),
+
    /// A plain file name.
    ///
    /// It is [not supposed](https://tools.ietf.org/html/rfc6266#appendix-D) to contain any
@@ -83,14 +87,17 @@ pub enum DispositionParam {
    /// [`FilenameExt`](DispositionParam::FilenameExt) with charset UTF-8 may be used instead
    /// in case there are Unicode characters in file names.
    Filename(String),
+
    /// An extended file name. It must not exist for `ContentType::Formdata` according to
    /// [RFC7578 Section 4.2](https://tools.ietf.org/html/rfc7578#section-4.2).
    FilenameExt(ExtendedValue),
+
    /// An unrecognized regular parameter as defined in
    /// [RFC5987](https://tools.ietf.org/html/rfc5987) as *reg-parameter*, in
    /// [RFC6266](https://tools.ietf.org/html/rfc6266) as *token "=" value*. Recipients should
    /// ignore unrecognizable parameters.
    Unknown(String, String),
+
    /// An unrecognized extended parameter as defined in
    /// [RFC5987](https://tools.ietf.org/html/rfc5987) as *ext-parameter*, in
    /// [RFC6266](https://tools.ietf.org/html/rfc6266) as *ext-token "=" ext-value*. The single
@@ -205,7 +212,6 @@ impl DispositionParam {
 /// itself, *Content-Disposition* has no effect.
 ///
 /// # ABNF
-
 /// ```text
 /// content-disposition = "Content-Disposition" ":"
 ///                       disposition-type *( ";" disposition-parm )
@@ -289,10 +295,12 @@ impl DispositionParam {
 /// If "filename" parameter is supplied, do not use the file name blindly, check and possibly
 /// change to match local file system conventions if applicable, and do not use directory path
 /// information that may be present. See [RFC2183](https://tools.ietf.org/html/rfc2183#section-2.3).
+// TODO: private fields and use smallvec
 #[derive(Clone, Debug, PartialEq)]
 pub struct ContentDisposition {
    /// The disposition type
    pub disposition: DispositionType,
+
    /// Disposition parameters
    pub parameters: Vec<DispositionParam>,
 }
@@ -509,22 +517,28 @@ impl fmt::Display for DispositionParam {
        //
        //
        // See also comments in test_from_raw_unnecessary_percent_decode.
+
        static RE: Lazy<Regex> =
            Lazy::new(|| Regex::new("[\x00-\x08\x10-\x1F\x7F\"\\\\]").unwrap());
+
        match self {
            DispositionParam::Name(ref value) => write!(f, "name={}", value),
+
            DispositionParam::Filename(ref value) => {
                write!(f, "filename=\"{}\"", RE.replace_all(value, "\\$0").as_ref())
            }
+
            DispositionParam::Unknown(ref name, ref value) => write!(
                f,
                "{}=\"{}\"",
                name,
                &RE.replace_all(value, "\\$0").as_ref()
            ),
+
            DispositionParam::FilenameExt(ref ext_value) => {
                write!(f, "filename*={}", ext_value)
            }
+
            DispositionParam::UnknownExt(ref name, ref ext_value) => {
                write!(f, "{}*={}", name, ext_value)
            }
--- a/src/middleware/compat.rs
+++ b/src/middleware/compat.rs
@@ -7,7 +7,7 @@ use std::{
    task::{Context, Poll},
 };

-use actix_http::body::{Body, MessageBody};
+use actix_http::body::{AnyBody, MessageBody};
 use actix_service::{Service, Transform};
 use futures_core::{future::LocalBoxFuture, ready};

@@ -124,7 +124,7 @@ where
    B::Error: Into<Box<dyn StdError + 'static>>,
 {
    fn map_body(self) -> ServiceResponse {
-        self.map_body(|_, body| Body::from_message(body))
+        self.map_body(|_, body| AnyBody::new_boxed(body))
    }
 }

--- a/src/middleware/compress.rs
+++ b/src/middleware/compress.rs
@@ -10,13 +10,14 @@ use std::{
 };

 use actix_http::{
-    body::{MessageBody, ResponseBody},
+    body::{AnyBody, MessageBody},
    encoding::Encoder,
    http::header::{ContentEncoding, ACCEPT_ENCODING},
    StatusCode,
 };
 use actix_service::{Service, Transform};
 use actix_utils::future::{ok, Either, Ready};
+use bytes::Bytes;
 use futures_core::ready;
 use once_cell::sync::Lazy;
 use pin_project::pin_project;
@@ -61,7 +62,7 @@ where
    B: MessageBody,
    S: Service<ServiceRequest, Response = ServiceResponse<B>, Error = Error>,
 {
-    type Response = ServiceResponse<ResponseBody<Encoder<B>>>;
+    type Response = ServiceResponse<AnyBody<Encoder<B>>>;
    type Error = Error;
    type Transform = CompressMiddleware<S>;
    type InitError = ();
@@ -81,7 +82,8 @@ pub struct CompressMiddleware<S> {
 }

 static SUPPORTED_ALGORITHM_NAMES: Lazy<String> = Lazy::new(|| {
-    let mut encoding = vec![];
+    #[allow(unused_mut)] // only unused when no compress features enabled
+    let mut encoding: Vec<&str> = vec![];

    #[cfg(feature = "compress-brotli")]
    {
@@ -110,7 +112,7 @@ where
    S: Service<ServiceRequest, Response = ServiceResponse<B>, Error = Error>,
    B: MessageBody,
 {
-    type Response = ServiceResponse<ResponseBody<Encoder<B>>>;
+    type Response = ServiceResponse<AnyBody<Encoder<B>>>;
    type Error = Error;
    type Future = Either<CompressResponse<S, B>, Ready<Result<Self::Response, Self::Error>>>;

@@ -142,15 +144,19 @@ where

            // 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;
+                let res = HttpResponse::new(StatusCode::NOT_ACCEPTABLE);

-                Either::right(ok(req.into_response(res.map_body(move |head, body| {
-                    Encoder::response(enc, head, ResponseBody::Other(body.into()))
-                }))))
+                let res: HttpResponse<AnyBody<Encoder<B>>> = res.map_body(move |head, _| {
+                    let body_bytes = Bytes::from(SUPPORTED_ALGORITHM_NAMES.as_bytes());
+
+                    Encoder::response(
+                        ContentEncoding::Identity,
+                        head,
+                        AnyBody::Bytes(body_bytes),
+                    )
+                });
+
+                Either::right(ok(req.into_response(res)))
            }
        }
    }
@@ -172,7 +178,7 @@ where
    B: MessageBody,
    S: Service<ServiceRequest, Response = ServiceResponse<B>, Error = Error>,
 {
-    type Output = Result<ServiceResponse<ResponseBody<Encoder<B>>>, Error>;
+    type Output = Result<ServiceResponse<AnyBody<Encoder<B>>>, Error>;

    fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
        let this = self.project();
@@ -186,7 +192,7 @@ where
                };

                Poll::Ready(Ok(resp.map_body(move |head, body| {
-                    Encoder::response(enc, head, ResponseBody::Body(body))
+                    Encoder::response(enc, head, AnyBody::Body(body))
                })))
            }
            Err(e) => Poll::Ready(Err(e)),
--- a/src/responder.rs
+++ b/src/responder.rs
@@ -1,7 +1,7 @@
 use std::borrow::Cow;

 use actix_http::{
-    body::Body,
+    body::AnyBody,
    http::{header::IntoHeaderPair, Error as HttpError, HeaderMap, StatusCode},
 };
 use bytes::{Bytes, BytesMut};
@@ -65,7 +65,7 @@ impl Responder for HttpResponse {
    }
 }

-impl Responder for actix_http::Response<Body> {
+impl Responder for actix_http::Response<AnyBody> {
    #[inline]
    fn respond_to(self, _: &HttpRequest) -> HttpResponse {
        HttpResponse::from(self)
@@ -232,7 +232,7 @@ pub(crate) mod tests {
    use bytes::{Bytes, BytesMut};

    use super::*;
-    use crate::dev::{Body, ResponseBody};
+    use crate::dev::AnyBody;
    use crate::http::{header::CONTENT_TYPE, HeaderValue, StatusCode};
    use crate::test::{init_service, TestRequest};
    use crate::{error, web, App};
@@ -254,7 +254,7 @@ pub(crate) mod tests {
        let resp = srv.call(req).await.unwrap();
        assert_eq!(resp.status(), StatusCode::OK);
        match resp.response().body() {
-            Body::Bytes(ref b) => {
+            AnyBody::Bytes(ref b) => {
                let bytes = b.clone();
                assert_eq!(bytes, Bytes::from_static(b"some"));
            }
@@ -264,42 +264,21 @@ pub(crate) mod tests {

    pub(crate) trait BodyTest {
        fn bin_ref(&self) -> &[u8];
-        fn body(&self) -> &Body;
+        fn body(&self) -> &AnyBody;
    }

-    impl BodyTest for Body {
+    impl BodyTest for AnyBody {
        fn bin_ref(&self) -> &[u8] {
            match self {
-                Body::Bytes(ref bin) => bin,
+                AnyBody::Bytes(ref bin) => bin,
                _ => unreachable!("bug in test impl"),
            }
        }
-        fn body(&self) -> &Body {
+        fn body(&self) -> &AnyBody {
            self
        }
    }

-    impl BodyTest for ResponseBody<Body> {
-        fn bin_ref(&self) -> &[u8] {
-            match self {
-                ResponseBody::Body(ref b) => match b {
-                    Body::Bytes(ref bin) => bin,
-                    _ => unreachable!("bug in test impl"),
-                },
-                ResponseBody::Other(ref b) => match b {
-                    Body::Bytes(ref bin) => bin,
-                    _ => unreachable!("bug in test impl"),
-                },
-            }
-        }
-        fn body(&self) -> &Body {
-            match self {
-                ResponseBody::Body(ref b) => b,
-                ResponseBody::Other(ref b) => b,
-            }
-        }
-    }
-
    #[actix_rt::test]
    async fn test_responder() {
        let req = TestRequest::default().to_http_request();
--- a/src/response/builder.rs
+++ b/src/response/builder.rs
@@ -354,10 +354,10 @@ impl HttpResponseBuilder {
    #[inline]
    pub fn streaming<S, E>(&mut self, stream: S) -> HttpResponse
    where
-        S: Stream<Item = Result<Bytes, E>> + Unpin + 'static,
+        S: Stream<Item = Result<Bytes, E>> + 'static,
        E: Into<Box<dyn StdError>> + 'static,
    {
-        self.body(AnyBody::from_message(BodyStream::new(stream)))
+        self.body(AnyBody::new_boxed(BodyStream::new(stream)))
    }

    /// Set a json body and generate `Response`
@@ -387,7 +387,7 @@ impl HttpResponseBuilder {
    /// `HttpResponseBuilder` can not be used after this call.
    #[inline]
    pub fn finish(&mut self) -> HttpResponse {
-        self.body(AnyBody::Empty)
+        self.body(AnyBody::empty())
    }

    /// This method construct new `HttpResponseBuilder`
@@ -436,7 +436,7 @@ mod tests {

    use super::*;
    use crate::{
-        dev::Body,
+        dev::AnyBody,
        http::{
            header::{self, HeaderValue, CONTENT_TYPE},
            StatusCode,
@@ -475,7 +475,7 @@ mod tests {
    fn test_content_type() {
        let resp = HttpResponseBuilder::new(StatusCode::OK)
            .content_type("text/plain")
-            .body(Body::Empty);
+            .body(AnyBody::empty());
        assert_eq!(resp.headers().get(CONTENT_TYPE).unwrap(), "text/plain")
    }

--- a/src/response/http_codes.rs
+++ b/src/response/http_codes.rs
@@ -87,13 +87,12 @@ impl HttpResponse {

 #[cfg(test)]
 mod tests {
-    use crate::dev::Body;
    use crate::http::StatusCode;
    use crate::HttpResponse;

    #[test]
    fn test_build() {
-        let resp = HttpResponse::Ok().body(Body::Empty);
+        let resp = HttpResponse::Ok().finish();
        assert_eq!(resp.status(), StatusCode::OK);
    }
 }
--- a/src/response/response.rs
+++ b/src/response/response.rs
@@ -8,7 +8,7 @@ use std::{
 };

 use actix_http::{
-    body::{AnyBody, Body, MessageBody},
+    body::{AnyBody, MessageBody},
    http::{header::HeaderMap, StatusCode},
    Extensions, Response, ResponseHead,
 };
@@ -227,6 +227,9 @@ impl<B> HttpResponse<B> {
        }
    }

+    // TODO: into_body equivalent
+    // TODO: into_boxed_body
+
    /// Extract response body
    pub fn into_body(self) -> B {
        self.res.into_body()
@@ -270,14 +273,14 @@ impl<B> From<HttpResponse<B>> for Response<B> {
    }
 }

-// Future is only implemented for Body payload type because it's the most useful for making simple
-// handlers without async blocks. Making it generic over all MessageBody types requires a future
-// impl on Response which would cause it's body field to be, undesirably, Option<B>.
+// Future is only implemented for AnyBody payload type because it's the most useful for making
+// simple handlers without async blocks. Making it generic over all MessageBody types requires a
+// future impl on Response which would cause it's body field to be, undesirably, Option<B>.
 //
 // This impl is not particularly efficient due to the Response construction and should probably
 // not be invoked if performance is important. Prefer an async fn/block in such cases.
-impl Future for HttpResponse<Body> {
-    type Output = Result<Response<Body>, Error>;
+impl Future for HttpResponse<AnyBody> {
+    type Output = Result<Response<AnyBody>, Error>;

    fn poll(mut self: Pin<&mut Self>, _: &mut Context<'_>) -> Poll<Self::Output> {
        if let Some(err) = self.error.take() {
--- a/src/route.rs
+++ b/src/route.rs
@@ -11,7 +11,7 @@ use futures_core::future::LocalBoxFuture;

 use crate::{
    guard::{self, Guard},
-    handler::{Handler, HandlerService},
+    handler::{handler_service, Handler},
    service::{ServiceRequest, ServiceResponse},
    Error, FromRequest, HttpResponse, Responder,
 };
@@ -30,7 +30,7 @@ impl Route {
    #[allow(clippy::new_without_default)]
    pub fn new() -> Route {
        Route {
-            service: boxed::factory(HandlerService::new(HttpResponse::NotFound)),
+            service: handler_service(HttpResponse::NotFound),
            guards: Rc::new(Vec::new()),
        }
    }
@@ -182,7 +182,7 @@ impl Route {
        R: Future + 'static,
        R::Output: Responder + 'static,
    {
-        self.service = boxed::factory(HandlerService::new(handler));
+        self.service = handler_service(handler);
        self
    }

--- a/src/scope.rs
+++ b/src/scope.rs
@@ -580,7 +580,7 @@ mod tests {
    use bytes::Bytes;

    use crate::{
-        dev::Body,
+        dev::AnyBody,
        guard,
        http::{header, HeaderValue, Method, StatusCode},
        middleware::DefaultHeaders,
@@ -752,7 +752,7 @@ mod tests {
        assert_eq!(resp.status(), StatusCode::OK);

        match resp.response().body() {
-            Body::Bytes(ref b) => {
+            AnyBody::Bytes(ref b) => {
                let bytes = b.clone();
                assert_eq!(bytes, Bytes::from_static(b"project: project1"));
            }
@@ -853,7 +853,7 @@ mod tests {
        assert_eq!(resp.status(), StatusCode::CREATED);

        match resp.response().body() {
-            Body::Bytes(ref b) => {
+            AnyBody::Bytes(ref b) => {
                let bytes = b.clone();
                assert_eq!(bytes, Bytes::from_static(b"project: project_1"));
            }
@@ -881,7 +881,7 @@ mod tests {
        assert_eq!(resp.status(), StatusCode::CREATED);

        match resp.response().body() {
-            Body::Bytes(ref b) => {
+            AnyBody::Bytes(ref b) => {
                let bytes = b.clone();
                assert_eq!(bytes, Bytes::from_static(b"project: test - 1"));
            }
--- a/src/test.rs
+++ b/src/test.rs
@@ -22,7 +22,7 @@ use crate::{
    app_service::AppInitServiceState,
    config::AppConfig,
    data::Data,
-    dev::{Body, MessageBody, Payload},
+    dev::{AnyBody, MessageBody, Payload},
    http::header::ContentType,
    rmap::ResourceMap,
    service::{ServiceRequest, ServiceResponse},
@@ -32,14 +32,14 @@ use crate::{

 /// Create service that always responds with `HttpResponse::Ok()` and no body.
 pub fn ok_service(
-) -> impl Service<ServiceRequest, Response = ServiceResponse<Body>, Error = Error> {
+) -> impl Service<ServiceRequest, Response = ServiceResponse<AnyBody>, Error = Error> {
    default_service(StatusCode::OK)
 }

 /// Create service that always responds with given status code and no body.
 pub fn default_service(
    status_code: StatusCode,
-) -> impl Service<ServiceRequest, Response = ServiceResponse<Body>, Error = Error> {
+) -> impl Service<ServiceRequest, Response = ServiceResponse<AnyBody>, Error = Error> {
    (move |req: ServiceRequest| {
        ok(req.into_response(HttpResponseBuilder::new(status_code).finish()))
    })
--- a/tests/test_server.rs
+++ b/tests/test_server.rs
@@ -200,7 +200,7 @@ async fn test_body_encoding_override() {
                    .body(STR)
            })))
            .service(web::resource("/raw").route(web::to(|| {
-                let body = actix_web::dev::Body::Bytes(STR.into());
+                let body = actix_web::dev::AnyBody::Bytes(STR.into());
                let mut response =
                    HttpResponse::with_body(actix_web::http::StatusCode::OK, body);
Author	SHA1	Message	Date
Rob Ede	ab5eb7c1aa	prepare actix-multipart release 0.4.0-beta.8	2021-11-22 18:48:14 +00:00
Rob Ede	18b8ef0765	prepare actix-test release 0.1.0-beta.7	2021-11-22 18:47:43 +00:00
Rob Ede	b806b4773c	prepare actix-http-test release 3.0.0-beta.7	2021-11-22 18:46:58 +00:00
Rob Ede	0062d99b6f	prepare actix-files release 0.6.0-beta.9	2021-11-22 18:46:19 +00:00
Rob Ede	99e6a9c26d	prepare awc release 3.0.0-beta.11	2021-11-22 18:41:43 +00:00
Rob Ede	5f5bd2184e	prepare actix-web release 4.0.0-beta.12	2021-11-22 18:20:55 +00:00
Rob Ede	88e074879d	prepare actix-http release 3.0.0-beta.13	2021-11-22 18:19:09 +00:00
fakeshadow	e7987e7429	awc: support http2 over plain tcp with feature flag (#2439 ) Co-authored-by: Rob Ede <robjtede@icloud.com>	2021-11-22 18:16:56 +00:00
Rob Ede	a172f5968d	prepare for actix-tls v3 beta 9 (#2456 )	2021-11-22 15:37:23 +00:00
Rob Ede	a2a42ec152	use anybody in doc test	2021-11-22 01:35:33 +00:00
fakeshadow	dd347e0bd0	implement io-uring for actix-files (#2408 ) Co-authored-by: Rob Ede <robjtede@icloud.com>	2021-11-22 01:19:09 +00:00
Rob Ede	194a691537	files: 304 Not Modified responses omit Content-Length header (#2453 )	2021-11-19 14:04:12 +00:00
Rob Ede	56ee97f722	add files path traversal tests	2021-11-18 18:14:34 +00:00
Ali MJ Al-Nasrawy	66620a1012	simplify handler.rs (#2450 )	2021-11-17 20:11:35 +00:00
Rob Ede	e33618ed6d	ensure content disposition header in multipart (#2451 ) Co-authored-by: Craig Pastro <craig.pastro@gmail.com>	2021-11-17 17:44:50 +00:00
Rob Ede	1fe309bcc6	increase ci test timeout	2021-11-17 15:32:42 +00:00
fakeshadow	168a7284d3	fix actix_http::Error conversion. (#2449 )	2021-11-17 13:13:05 +00:00
Rob Ede	68a3acb9c2	bump zstd dep	2021-11-16 23:22:29 +00:00
Rob Ede	84c6d25fd3	bump env logger dep	2021-11-16 23:07:08 +00:00
Rob Ede	0a135c7dc9	bump actix-codec to 0.4.1	2021-11-16 22:41:24 +00:00
Rob Ede	668a33c793	remove internal usage of Body	2021-11-16 22:10:30 +00:00
Rob Ede	d8cbb879dd	make `AnyBody` generic on `Body` type (#2448 )	2021-11-16 21:41:35 +00:00
Rob Ede	13cf5a9e44	remove chunked encoding header for websockets	2021-11-16 16:55:45 +00:00
Rob Ede	4df1cd78b7	simplify `AnyBody` and `BodySize` (#2446 )	2021-11-16 09:21:10 +00:00
Rob Ede	e8a0e16863	run tarpaulin on workspace	2021-11-15 18:11:51 +00:00