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Use cilent time out for h2 handshake timeout. (#2483)

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fakeshadow 2021-12-03 02:16:34 +08:00 committed by GitHub
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commit a2d5c5a058
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7 changed files with 231 additions and 95 deletions
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4
actix-http/CHANGES.md
View file

@ -1,7 +1,11 @@
# Changes
## Unreleased - 2021-xx-xx
### Added
* Add timeout for canceling HTTP/2 server side connection handshake. Default to 5 seconds. [#2483]
* HTTP/2 handshake timeout can be configured with `ServiceConfig::client_timeout`. [#2483]
[#2483]: https://github.com/actix/actix-web/pull/2483
## 3.0.0-beta.14 - 2021-11-30
### Changed

13
actix-http/src/h2/dispatcher.rs
View file

@ -10,7 +10,7 @@ use std::{
};
use actix_codec::{AsyncRead, AsyncWrite};
use actix_rt::time::Sleep;
use actix_rt::time::{sleep, Sleep};
use actix_service::Service;
use actix_utils::future::poll_fn;
use bytes::{Bytes, BytesMut};
@ -55,9 +55,16 @@ where
on_connect_data: OnConnectData,
config: ServiceConfig,
peer_addr: Option<net::SocketAddr>,
timer: Option<Pin<Box<Sleep>>>,
) -> Self {
let ping_pong = config.keep_alive_timer().map(|timer| H2PingPong {
timer: Box::pin(timer),
let ping_pong = config.keep_alive().map(|dur| H2PingPong {
timer: timer
.map(|mut timer| {
// reset timer if it's received from new function.
timer.as_mut().reset(config.now() + dur);
timer
})
.unwrap_or_else(|| Box::pin(sleep(dur))),
on_flight: false,
ping_pong: connection.ping_pong().unwrap(),
});

55
actix-http/src/h2/mod.rs
View file

@ -1,20 +1,30 @@
//! HTTP/2 protocol.
use std::{
future::Future,
pin::Pin,
task::{Context, Poll},
};
use actix_codec::{AsyncRead, AsyncWrite};
use actix_rt::time::Sleep;
use bytes::Bytes;
use futures_core::{ready, Stream};
use h2::RecvStream;
use h2::{
server::{handshake, Connection, Handshake},
RecvStream,
};
mod dispatcher;
mod service;
pub use self::dispatcher::Dispatcher;
pub use self::service::H2Service;
use crate::error::PayloadError;
use crate::{
config::ServiceConfig,
error::{DispatchError, PayloadError},
};
/// HTTP/2 peer stream.
pub struct Payload {
@ -50,3 +60,44 @@ impl Stream for Payload {
}
}
}
pub(crate) fn handshake_with_timeout<T>(
io: T,
config: &ServiceConfig,
) -> HandshakeWithTimeout<T>
where
T: AsyncRead + AsyncWrite + Unpin,
{
HandshakeWithTimeout {
handshake: handshake(io),
timer: config.client_timer().map(Box::pin),
}
}
pub(crate) struct HandshakeWithTimeout<T: AsyncRead + AsyncWrite + Unpin> {
handshake: Handshake<T>,
timer: Option<Pin<Box<Sleep>>>,
}
impl<T> Future for HandshakeWithTimeout<T>
where
T: AsyncRead + AsyncWrite + Unpin,
{
type Output = Result<(Connection<T, Bytes>, Option<Pin<Box<Sleep>>>), DispatchError>;
fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
let this = self.get_mut();
match Pin::new(&mut this.handshake).poll(cx)? {
// return the timer on success handshake. It can be re-used for h2 ping-pong.
Poll::Ready(conn) => Poll::Ready(Ok((conn, this.timer.take()))),
Poll::Pending => match this.timer.as_mut() {
Some(timer) => {
ready!(timer.as_mut().poll(cx));
Poll::Ready(Err(DispatchError::SlowRequestTimeout))
}
None => Poll::Pending,
},
}
}
}

13
actix-http/src/h2/service.rs
View file

@ -15,9 +15,7 @@ use actix_service::{
ServiceFactoryExt as _,
};
use actix_utils::future::ready;
use bytes::Bytes;
use futures_core::{future::LocalBoxFuture, ready};
use h2::server::{handshake as h2_handshake, Handshake as H2Handshake};
use log::error;
use crate::{
@ -28,7 +26,7 @@ use crate::{
ConnectCallback, OnConnectData, Request, Response,
};
use super::dispatcher::Dispatcher;
use super::{dispatcher::Dispatcher, handshake_with_timeout, HandshakeWithTimeout};
/// `ServiceFactory` implementation for HTTP/2 transport
pub struct H2Service<T, S, B> {
@ -297,7 +295,7 @@ where
Some(self.cfg.clone()),
addr,
on_connect_data,
h2_handshake(io),
handshake_with_timeout(io, &self.cfg),
),
}
}
@ -314,7 +312,7 @@ where
Option<ServiceConfig>,
Option<net::SocketAddr>,
OnConnectData,
H2Handshake<T, Bytes>,
HandshakeWithTimeout<T>,
),
}
@ -352,7 +350,7 @@ where
ref mut on_connect_data,
ref mut handshake,
) => match ready!(Pin::new(handshake).poll(cx)) {
Ok(conn) => {
Ok((conn, timer)) => {
let on_connect_data = std::mem::take(on_connect_data);
self.state = State::Incoming(Dispatcher::new(
srv.take().unwrap(),
@ -360,12 +358,13 @@ where
on_connect_data,
config.take().unwrap(),
*peer_addr,
timer,
));
self.poll(cx)
}
Err(err) => {
trace!("H2 handshake error: {}", err);
Poll::Ready(Err(err.into()))
Poll::Ready(Err(err))
}
},
}

11
actix-http/src/service.rs
View file

@ -9,13 +9,11 @@ use std::{
task::{Context, Poll},
};
use ::h2::server::{handshake as h2_handshake, Handshake as H2Handshake};
use actix_codec::{AsyncRead, AsyncWrite, Framed};
use actix_rt::net::TcpStream;
use actix_service::{
fn_service, IntoServiceFactory, Service, ServiceFactory, ServiceFactoryExt as _,
};
use bytes::Bytes;
use futures_core::{future::LocalBoxFuture, ready};
use pin_project::pin_project;
@ -522,7 +520,7 @@ where
match proto {
Protocol::Http2 => HttpServiceHandlerResponse {
state: State::H2Handshake(Some((
h2_handshake(io),
h2::handshake_with_timeout(io, &self.cfg),
self.cfg.clone(),
self.flow.clone(),
on_connect_data,
@ -567,7 +565,7 @@ where
H2(#[pin] h2::Dispatcher<T, S, B, X, U>),
H2Handshake(
Option<(
H2Handshake<T, Bytes>,
h2::HandshakeWithTimeout<T>,
ServiceConfig,
Rc<HttpFlow<S, X, U>>,
OnConnectData,
@ -625,7 +623,7 @@ where
StateProj::H2(disp) => disp.poll(cx),
StateProj::H2Handshake(data) => {
match ready!(Pin::new(&mut data.as_mut().unwrap().0).poll(cx)) {
Ok(conn) => {
Ok((conn, timer)) => {
let (_, cfg, srv, on_connect_data, peer_addr) =
data.take().unwrap();
self.as_mut().project().state.set(State::H2(
@ -635,13 +633,14 @@ where
on_connect_data,
cfg,
peer_addr,
timer,
),
));
self.poll(cx)
}
Err(err) => {
trace!("H2 handshake error: {}", err);
Poll::Ready(Err(err.into()))
Poll::Ready(Err(err))
}
}
}

77
actix-http/tests/test_h2_ping_pong.rs
View file

@ -1,77 +0,0 @@
use std::io;
use actix_http::{error::Error, HttpService, Response};
use actix_server::Server;
#[actix_rt::test]
async fn h2_ping_pong() -> io::Result<()> {
let (tx, rx) = std::sync::mpsc::sync_channel(1);
let lst = std::net::TcpListener::bind("127.0.0.1:0")?;
let addr = lst.local_addr().unwrap();
let join = std::thread::spawn(move || {
actix_rt::System::new().block_on(async move {
let srv = Server::build()
.disable_signals()
.workers(1)
.listen("h2_ping_pong", lst, || {
HttpService::build()
.keep_alive(3)
.h2(|_| async { Ok::<_, Error>(Response::ok()) })
.tcp()
})?
.run();
tx.send(srv.handle()).unwrap();
srv.await
})
});
let handle = rx.recv().unwrap();
let (sync_tx, rx) = std::sync::mpsc::sync_channel(1);
// use a separate thread for h2 client so it can be blocked.
std::thread::spawn(move || {
tokio::runtime::Builder::new_current_thread()
.enable_all()
.build()
.unwrap()
.block_on(async move {
let stream = tokio::net::TcpStream::connect(addr).await.unwrap();
let (mut tx, conn) = h2::client::handshake(stream).await.unwrap();
tokio::spawn(async move { conn.await.unwrap() });
let (res, _) = tx.send_request(::http::Request::new(()), true).unwrap();
let res = res.await.unwrap();
assert_eq!(res.status().as_u16(), 200);
sync_tx.send(()).unwrap();
// intentionally block the client thread so it can not answer ping pong.
std::thread::sleep(std::time::Duration::from_secs(1000));
})
});
rx.recv().unwrap();
let now = std::time::Instant::now();
// stop server gracefully. this step would take up to 30 seconds.
handle.stop(true).await;
// join server thread. only when connection are all gone this step would finish.
join.join().unwrap()?;
// check the time used for join server thread so it's known that the server shutdown
// is from keep alive and not server graceful shutdown timeout.
assert!(now.elapsed() < std::time::Duration::from_secs(30));
Ok(())
}

153
actix-http/tests/test_h2_timer.rs Normal file
View file

@ -0,0 +1,153 @@
use std::io;
use actix_http::{error::Error, HttpService, Response};
use actix_server::Server;
use tokio::io::AsyncWriteExt;
#[actix_rt::test]
async fn h2_ping_pong() -> io::Result<()> {
let (tx, rx) = std::sync::mpsc::sync_channel(1);
let lst = std::net::TcpListener::bind("127.0.0.1:0")?;
let addr = lst.local_addr().unwrap();
let join = std::thread::spawn(move || {
actix_rt::System::new().block_on(async move {
let srv = Server::build()
.disable_signals()
.workers(1)
.listen("h2_ping_pong", lst, || {
HttpService::build()
.keep_alive(3)
.h2(|_| async { Ok::<_, Error>(Response::ok()) })
.tcp()
})?
.run();
tx.send(srv.handle()).unwrap();
srv.await
})
});
let handle = rx.recv().unwrap();
let (sync_tx, rx) = std::sync::mpsc::sync_channel(1);
// use a separate thread for h2 client so it can be blocked.
std::thread::spawn(move || {
tokio::runtime::Builder::new_current_thread()
.enable_all()
.build()
.unwrap()
.block_on(async move {
let stream = tokio::net::TcpStream::connect(addr).await.unwrap();
let (mut tx, conn) = h2::client::handshake(stream).await.unwrap();
tokio::spawn(async move { conn.await.unwrap() });
let (res, _) = tx.send_request(::http::Request::new(()), true).unwrap();
let res = res.await.unwrap();
assert_eq!(res.status().as_u16(), 200);
sync_tx.send(()).unwrap();
// intentionally block the client thread so it can not answer ping pong.
std::thread::sleep(std::time::Duration::from_secs(1000));
})
});
rx.recv().unwrap();
let now = std::time::Instant::now();
// stop server gracefully. this step would take up to 30 seconds.
handle.stop(true).await;
// join server thread. only when connection are all gone this step would finish.
join.join().unwrap()?;
// check the time used for join server thread so it's known that the server shutdown
// is from keep alive and not server graceful shutdown timeout.
assert!(now.elapsed() < std::time::Duration::from_secs(30));
Ok(())
}
#[actix_rt::test]
async fn h2_handshake_timeout() -> io::Result<()> {
let (tx, rx) = std::sync::mpsc::sync_channel(1);
let lst = std::net::TcpListener::bind("127.0.0.1:0")?;
let addr = lst.local_addr().unwrap();
let join = std::thread::spawn(move || {
actix_rt::System::new().block_on(async move {
let srv = Server::build()
.disable_signals()
.workers(1)
.listen("h2_ping_pong", lst, || {
HttpService::build()
.keep_alive(30)
// set first request timeout to 5 seconds.
// this is the timeout used for http2 handshake.
.client_timeout(5000)
.h2(|_| async { Ok::<_, Error>(Response::ok()) })
.tcp()
})?
.run();
tx.send(srv.handle()).unwrap();
srv.await
})
});
let handle = rx.recv().unwrap();
let (sync_tx, rx) = std::sync::mpsc::sync_channel(1);
// use a separate thread for tcp client so it can be blocked.
std::thread::spawn(move || {
tokio::runtime::Builder::new_current_thread()
.enable_all()
.build()
.unwrap()
.block_on(async move {
let mut stream = tokio::net::TcpStream::connect(addr).await.unwrap();
// do not send the last new line intentionally.
// This should hang the server handshake
let malicious_buf = b"PRI * HTTP/2.0\r\n\r\nSM\r\n";
stream.write_all(malicious_buf).await.unwrap();
stream.flush().await.unwrap();
sync_tx.send(()).unwrap();
// intentionally block the client thread so it sit idle and not do handshake.
std::thread::sleep(std::time::Duration::from_secs(1000));
drop(stream)
})
});
rx.recv().unwrap();
let now = std::time::Instant::now();
// stop server gracefully. this step would take up to 30 seconds.
handle.stop(true).await;
// join server thread. only when connection are all gone this step would finish.
join.join().unwrap()?;
// check the time used for join server thread so it's known that the server shutdown
// is from handshake timeout and not server graceful shutdown timeout.
assert!(now.elapsed() < std::time::Duration::from_secs(30));
Ok(())
}