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wisp-mux... SEVEN!!

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This commit is contained in:
Toshit Chawda 2025-01-29 13:21:23 -08:00
parent 194ad4e5c8
commit 3f381d6b39
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GPG key ID: 91480ED99E2B3D9D
53 changed files with 3721 additions and 4821 deletions
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559
Cargo.lock generated
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1
Cargo.toml
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@ -5,6 +5,7 @@ members = ["server", "client", "wisp", "simple-wisp-client"]
[profile.release]
lto = true
debug = true
strip = false
panic = "abort"
codegen-units = 1
opt-level = 3

4
client/Cargo.toml
View file

@ -30,12 +30,12 @@ rustls-webpki = { version = "0.102.7", optional = true }
send_wrapper = { version = "0.6.0", features = ["futures"] }
thiserror = "2.0.3"
tokio = "1.39.3"
wasm-bindgen = "0.2.93"
wasm-bindgen = "0.2.100"
wasm-bindgen-futures = "0.4.43"
wasm-streams = "0.4.0"
web-sys = { version = "0.3.70", features = ["BinaryType", "Headers", "MessageEvent", "Request", "RequestInit", "Response", "ResponseInit", "Url", "WebSocket"] }
webpki-roots = "0.26.3"
wisp-mux = { version = "*", path = "../wisp", features = ["wasm", "generic_stream"], default-features = false }
wisp-mux = { version = "*", path = "../wisp", features = ["wasm"], default-features = false }
[dependencies.getrandom]
version = "*"

2
client/build.sh
View file

@ -12,7 +12,7 @@ else
CARGOFLAGS=""
fi
WBG="wasm-bindgen 0.2.99"
WBG="wasm-bindgen 0.2.100"
if [ "$(wasm-bindgen -V)" != "$WBG" ]; then
echo "Incorrect wasm-bindgen version: '$(wasm-bindgen -V)' != '$WBG'"
exit 1

10
client/src/io_stream.rs
View file

@ -1,6 +1,6 @@
use std::pin::Pin;
use bytes::{Bytes, BytesMut};
use bytes::Bytes;
use futures_util::{AsyncReadExt, AsyncWriteExt, Sink, SinkExt, Stream, TryStreamExt};
use js_sys::{Object, Uint8Array};
use wasm_bindgen::prelude::*;
@ -14,7 +14,7 @@ use crate::{
fn create_iostream(
stream: Pin<Box<dyn Stream<Item = Result<Bytes, EpoxyError>>>>,
sink: Pin<Box<dyn Sink<BytesMut, Error = EpoxyError>>>,
sink: Pin<Box<dyn Sink<Bytes, Error = EpoxyError>>>,
) -> EpoxyIoStream {
let read = ReadableStream::from_stream(
stream
@ -27,7 +27,7 @@ fn create_iostream(
convert_body(x)
.await
.map_err(|_| EpoxyError::InvalidPayload)
.map(|x| BytesMut::from(x.0.to_vec().as_slice()))
.map(|x| Bytes::from(x.0.to_vec()))
})
.sink_map_err(Into::into),
)
@ -50,7 +50,7 @@ pub fn iostream_from_asyncrw(asyncrw: ProviderAsyncRW, buffer_size: usize) -> Ep
pub fn iostream_from_stream(stream: ProviderUnencryptedStream) -> EpoxyIoStream {
let (rx, tx) = stream.into_split();
create_iostream(
Box::pin(rx.map_ok(Bytes::from).map_err(EpoxyError::Io)),
Box::pin(tx.sink_map_err(EpoxyError::Io)),
Box::pin(rx.map_ok(Bytes::from).map_err(EpoxyError::Wisp)),
Box::pin(tx.sink_map_err(EpoxyError::Wisp)),
)
}

59
client/src/lib.rs
View file

@ -1,13 +1,12 @@
#![feature(let_chains, impl_trait_in_assoc_type)]
use std::{error::Error, pin::Pin, str::FromStr, sync::Arc};
use std::{error::Error, str::FromStr, sync::Arc};
#[cfg(feature = "full")]
use async_compression::futures::bufread as async_comp;
use bytes::{Bytes, BytesMut};
use bytes::Bytes;
use cfg_if::cfg_if;
use futures_util::future::Either;
use futures_util::{Stream, StreamExt, TryStreamExt};
use futures_util::{future::Either, StreamExt, TryStreamExt};
use http::{
header::{
InvalidHeaderName, InvalidHeaderValue, ACCEPT_ENCODING, CONNECTION, CONTENT_LENGTH,
@ -24,7 +23,10 @@ use hyper_util_wasm::client::legacy::Client;
use io_stream::{iostream_from_asyncrw, iostream_from_stream};
use js_sys::{Array, ArrayBuffer, Function, Object, Promise, Uint8Array};
use send_wrapper::SendWrapper;
use stream_provider::{ProviderWispTransportGenerator, StreamProvider, StreamProviderService};
use stream_provider::{
ProviderWispTransportGenerator, ProviderWispTransportRead, ProviderWispTransportWrite,
StreamProvider, StreamProviderService,
};
use thiserror::Error;
use utils::{
asyncread_to_readablestream, convert_streaming_body, entries_of_object, from_entries,
@ -36,11 +38,9 @@ use wasm_bindgen_futures::JsFuture;
use web_sys::{ResponseInit, Url, WritableStream};
#[cfg(feature = "full")]
use websocket::EpoxyWebSocket;
use wisp_mux::StreamType;
use wisp_mux::{
generic::GenericWebSocketRead,
ws::{EitherWebSocketRead, EitherWebSocketWrite},
CloseReason,
packet::{CloseReason, StreamType},
WispError,
};
use ws_wrapper::WebSocketWrapper;
@ -341,29 +341,31 @@ fn create_wisp_transport(function: Function) -> ProviderWispTransportGenerator {
}
.into();
let read = GenericWebSocketRead::new(Box::pin(SendWrapper::new(
let read = Box::pin(SendWrapper::new(
wasm_streams::ReadableStream::from_raw(object_get(&transport, "read").into())
.into_stream()
.try_into_stream()
.map_err(|x| EpoxyError::wisp_transport(x.0.into()))?
.map(|x| {
let pkt = x.map_err(EpoxyError::wisp_transport)?;
let pkt = x
.map_err(EpoxyError::wisp_transport)
.map_err(|x| WispError::WsImplError(Box::new(x)))?;
let arr: ArrayBuffer = pkt.dyn_into().map_err(|x| {
EpoxyError::InvalidWispTransportPacket(format!("{x:?}"))
WispError::WsImplError(Box::new(
EpoxyError::InvalidWispTransportPacket(format!("{x:?}")),
))
})?;
Ok::<BytesMut, EpoxyError>(BytesMut::from(
Uint8Array::new(&arr).to_vec().as_slice(),
))
Ok::<Bytes, WispError>(Bytes::from(Uint8Array::new(&arr).to_vec()))
}),
))
as Pin<Box<dyn Stream<Item = Result<BytesMut, EpoxyError>> + Send>>);
let write: WritableStream = object_get(&transport, "write").into();
let write = WispTransportWrite {
inner: SendWrapper::new(write.get_writer().map_err(EpoxyError::wisp_transport)?),
};
)) as ProviderWispTransportRead;
Ok((
EitherWebSocketRead::Right(read),
EitherWebSocketWrite::Right(write),
))
let write: WritableStream = object_get(&transport, "write").into();
let write = Box::pin(WispTransportWrite(
wasm_streams::WritableStream::from_raw(write)
.try_into_sink()
.map_err(|x| EpoxyError::wisp_transport(x.0.into()))?,
)) as ProviderWispTransportWrite;
Ok((read, write))
}))
})
}
@ -419,10 +421,7 @@ impl EpoxyClient {
));
}
}
Ok((
EitherWebSocketRead::Left(read),
EitherWebSocketWrite::Left(write),
))
Ok((read.into_read(), write.into_write()))
})
}),
&options,

95
client/src/stream_provider.rs
View file

@ -1,6 +1,5 @@
use std::{io::ErrorKind, pin::Pin, sync::Arc, task::Poll};
use bytes::BytesMut;
use cfg_if::cfg_if;
use futures_rustls::{
rustls::{ClientConfig, RootCertStore},
@ -9,38 +8,33 @@ use futures_rustls::{
use futures_util::{
future::Either,
lock::{Mutex, MutexGuard},
AsyncRead, AsyncWrite, Future, Stream,
AsyncRead, AsyncWrite, Future,
};
use hyper_util_wasm::client::legacy::connect::{ConnectSvc, Connected, Connection};
use pin_project_lite::pin_project;
use send_wrapper::SendWrapper;
use wasm_bindgen_futures::spawn_local;
use webpki_roots::TLS_SERVER_ROOTS;
use wisp_mux::{
extensions::{udp::UdpProtocolExtensionBuilder, AnyProtocolExtensionBuilder},
generic::GenericWebSocketRead,
ws::{EitherWebSocketRead, EitherWebSocketWrite},
ClientMux, MuxStreamAsyncRW, MuxStreamIo, StreamType, WispV2Handshake,
packet::StreamType,
stream::{MuxStream, MuxStreamAsyncRW},
ws::{WebSocketRead, WebSocketWrite},
ClientMux, WispV2Handshake,
};
use crate::{
console_error, console_log,
utils::{IgnoreCloseNotify, NoCertificateVerification, WispTransportWrite},
ws_wrapper::{WebSocketReader, WebSocketWrapper},
utils::{IgnoreCloseNotify, NoCertificateVerification},
EpoxyClientOptions, EpoxyError,
};
pub type ProviderUnencryptedStream = MuxStreamIo;
pub type ProviderUnencryptedAsyncRW = MuxStreamAsyncRW;
pub type ProviderUnencryptedStream = MuxStream<ProviderWispTransportWrite>;
pub type ProviderUnencryptedAsyncRW = MuxStreamAsyncRW<ProviderWispTransportWrite>;
pub type ProviderTlsAsyncRW = IgnoreCloseNotify;
pub type ProviderAsyncRW = Either<ProviderTlsAsyncRW, ProviderUnencryptedAsyncRW>;
pub type ProviderWispTransportRead = EitherWebSocketRead<
WebSocketReader,
GenericWebSocketRead<
Pin<Box<dyn Stream<Item = Result<BytesMut, EpoxyError>> + Send>>,
EpoxyError,
>,
>;
pub type ProviderWispTransportWrite = EitherWebSocketWrite<WebSocketWrapper, WispTransportWrite>;
pub type ProviderWispTransportRead = Pin<Box<dyn WebSocketRead>>;
pub type ProviderWispTransportWrite = Pin<Box<dyn WebSocketWrite>>;
pub type ProviderWispTransportGenerator = Box<
dyn Fn(
bool,
@ -137,7 +131,7 @@ impl StreamProvider {
let (read, write) = (self.wisp_generator)(self.wisp_v2).await?;
let client = ClientMux::create(read, write, extensions).await?;
let client = ClientMux::new(read, write, extensions).await?;
let (mux, fut) = if self.udp_extension {
client.with_udp_extension_required().await?
} else {
@ -172,8 +166,8 @@ impl StreamProvider {
Box::pin(async {
let locked = self.current_client.lock().await;
if let Some(mux) = locked.as_ref() {
let stream = mux.client_new_stream(stream_type, host, port).await?;
Ok(stream.into_io())
let stream = mux.new_stream(stream_type, host, port).await?;
Ok(stream)
} else {
self.create_client(locked).await?;
self.get_stream(stream_type, host, port).await
@ -191,7 +185,7 @@ impl StreamProvider {
Ok(self
.get_stream(stream_type, host, port)
.await?
.into_asyncrw())
.into_async_rw())
}
pub async fn get_tls_stream(
@ -316,34 +310,37 @@ impl Connection for HyperIo {
#[derive(Clone)]
pub struct StreamProviderService(pub Arc<StreamProvider>);
impl ConnectSvc for StreamProviderService {
type Connection = HyperIo;
type Error = EpoxyError;
type Future = Pin<Box<impl Future<Output = Result<Self::Connection, Self::Error>>>>;
fn connect(self, req: hyper::Uri) -> Self::Future {
let provider = self.0.clone();
Box::pin(async move {
let scheme = req.scheme_str().ok_or(EpoxyError::InvalidUrlScheme(None))?;
let host = req.host().ok_or(EpoxyError::NoUrlHost)?.to_string();
let port = req.port_u16().map_or_else(
|| match scheme {
"https" | "wss" => Ok(443),
"http" | "ws" => Ok(80),
_ => Err(EpoxyError::NoUrlPort),
},
Ok,
)?;
Ok(HyperIo {
inner: match scheme {
"https" => Either::Left(provider.get_tls_stream(host, port, true).await?),
"wss" => Either::Left(provider.get_tls_stream(host, port, false).await?),
"http" | "ws" => {
Either::Right(provider.get_asyncread(StreamType::Tcp, host, port).await?)
}
_ => return Err(EpoxyError::InvalidUrlScheme(Some(scheme.to_string()))),
},
})
impl StreamProviderService {
async fn connect(self, req: hyper::Uri) -> Result<HyperIo, EpoxyError> {
let scheme = req.scheme_str().ok_or(EpoxyError::InvalidUrlScheme(None))?;
let host = req.host().ok_or(EpoxyError::NoUrlHost)?.to_string();
let port = req.port_u16().map_or_else(
|| match scheme {
"https" | "wss" => Ok(443),
"http" | "ws" => Ok(80),
_ => Err(EpoxyError::NoUrlPort),
},
Ok,
)?;
Ok(HyperIo {
inner: match scheme {
"https" => Either::Left(self.0.get_tls_stream(host, port, true).await?),
"wss" => Either::Left(self.0.get_tls_stream(host, port, false).await?),
"http" | "ws" => {
Either::Right(self.0.get_asyncread(StreamType::Tcp, host, port).await?)
}
_ => return Err(EpoxyError::InvalidUrlScheme(Some(scheme.to_string()))),
},
})
}
}
impl ConnectSvc for StreamProviderService {
type Connection = HyperIo;
type Error = EpoxyError;
type Future = impl Future<Output = Result<Self::Connection, Self::Error>> + Send;
fn connect(self, req: hyper::Uri) -> Self::Future {
SendWrapper::new(Box::pin(self.connect(req)))
}
}

56
client/src/utils/mod.rs
View file

@ -1,7 +1,10 @@
mod js;
mod rustls;
pub use js::*;
use js_sys::Uint8Array;
pub use rustls::*;
use wasm_streams::writable::IntoSink;
use wisp_mux::{ws::Payload, WispError};
use std::{
pin::Pin,
@ -9,19 +12,11 @@ use std::{
};
use bytes::{buf::UninitSlice, BufMut, Bytes, BytesMut};
use futures_util::{ready, AsyncRead, Future, Stream};
use futures_util::{ready, AsyncRead, Future, Sink, SinkExt, Stream};
use http::{HeaderValue, Uri};
use hyper::rt::Executor;
use js_sys::Uint8Array;
use pin_project_lite::pin_project;
use send_wrapper::SendWrapper;
use wasm_bindgen::prelude::*;
use wasm_bindgen_futures::JsFuture;
use web_sys::WritableStreamDefaultWriter;
use wisp_mux::{
ws::{Frame, WebSocketWrite},
WispError,
};
use crate::EpoxyError;
@ -131,8 +126,7 @@ pub fn poll_read_buf<T: AsyncRead + ?Sized, B: BufMut>(
let n = {
let dst = buf.chunk_mut();
let dst =
unsafe { &mut *(std::ptr::from_mut::<UninitSlice>(dst) as *mut [u8]) };
let dst = unsafe { &mut *(std::ptr::from_mut::<UninitSlice>(dst) as *mut [u8]) };
ready!(io.poll_read(cx, dst)?)
};
@ -174,26 +168,32 @@ impl<R: AsyncRead> Stream for ReaderStream<R> {
}
}
pub struct WispTransportWrite {
pub inner: SendWrapper<WritableStreamDefaultWriter>,
}
pub struct WispTransportWrite(pub IntoSink<'static>);
unsafe impl Send for WispTransportWrite {}
impl WebSocketWrite for WispTransportWrite {
async fn wisp_write_frame(&mut self, frame: Frame<'_>) -> Result<(), WispError> {
SendWrapper::new(async {
let chunk = Uint8Array::from(frame.payload.as_ref()).into();
JsFuture::from(self.inner.write_with_chunk(&chunk))
.await
.map(|_| ())
.map_err(|x| WispError::WsImplError(Box::new(EpoxyError::wisp_transport(x))))
})
.await
impl Sink<Payload> for WispTransportWrite {
type Error = WispError;
fn poll_ready(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
self.0
.poll_ready_unpin(cx)
.map_err(|x| WispError::WsImplError(Box::new(EpoxyError::wisp_transport(x))))
}
async fn wisp_close(&mut self) -> Result<(), WispError> {
SendWrapper::new(JsFuture::from(self.inner.abort()))
.await
.map(|_| ())
fn start_send(mut self: Pin<&mut Self>, item: Payload) -> Result<(), Self::Error> {
self.0
.start_send_unpin(Uint8Array::from(item.as_ref()).into())
.map_err(|x| WispError::WsImplError(Box::new(EpoxyError::wisp_transport(x))))
}
fn poll_flush(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
self.0
.poll_flush_unpin(cx)
.map_err(|x| WispError::WsImplError(Box::new(EpoxyError::wisp_transport(x))))
}
fn poll_close(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
self.0
.poll_close_unpin(cx)
.map_err(|x| WispError::WsImplError(Box::new(EpoxyError::wisp_transport(x))))
}
}

117
client/src/ws_wrapper.rs
View file

@ -3,7 +3,6 @@ use std::sync::{
Arc,
};
use bytes::BytesMut;
use event_listener::Event;
use flume::Receiver;
use futures_util::FutureExt;
@ -13,11 +12,14 @@ use thiserror::Error;
use wasm_bindgen::{closure::Closure, JsCast, JsValue};
use web_sys::{BinaryType, MessageEvent, WebSocket};
use wisp_mux::{
ws::{Frame, LockingWebSocketWrite, Payload, WebSocketRead, WebSocketWrite},
ws::{async_iterator_transport_read, async_iterator_transport_write, Payload},
WispError,
};
use crate::EpoxyError;
use crate::{
stream_provider::{ProviderWispTransportRead, ProviderWispTransportWrite},
EpoxyError,
};
#[derive(Error, Debug)]
pub enum WebSocketError {
@ -36,13 +38,12 @@ impl From<WebSocketError> for WispError {
}
pub enum WebSocketMessage {
Closed,
Error(WebSocketError),
Message(Vec<u8>),
}
pub struct WebSocketWrapper {
pub inner: SendWrapper<WebSocket>,
pub inner: Arc<SendWrapper<WebSocket>>,
open_event: Arc<Event>,
error_event: Arc<Event>,
close_event: Arc<Event>,
@ -65,26 +66,27 @@ pub struct WebSocketReader {
close_event: Arc<Event>,
}
impl WebSocketRead for WebSocketReader {
async fn wisp_read_frame(
&mut self,
_: &dyn LockingWebSocketWrite,
) -> Result<Frame<'static>, WispError> {
use WebSocketMessage as M;
if self.closed.load(Ordering::Acquire) {
return Err(WispError::WsImplSocketClosed);
}
let res = futures_util::select! {
data = self.read_rx.recv_async() => data.ok(),
() = self.close_event.listen().fuse() => Some(M::Closed),
};
match res.ok_or(WispError::WsImplSocketClosed)? {
M::Message(bin) => Ok(Frame::binary(Payload::Bytes(BytesMut::from(
bin.as_slice(),
)))),
M::Error(x) => Err(x.into()),
M::Closed => Err(WispError::WsImplSocketClosed),
}
impl WebSocketReader {
pub fn into_read(self) -> ProviderWispTransportRead {
Box::pin(async_iterator_transport_read(self, |this| {
Box::pin(async {
use WebSocketMessage as M;
if this.closed.load(Ordering::Acquire) {
return Err(WispError::WsImplSocketClosed);
}
let res = futures_util::select! {
data = this.read_rx.recv_async() => data.ok(),
() = this.close_event.listen().fuse() => None
};
match res {
Some(M::Message(x)) => Ok(Some((Payload::from(x), this))),
Some(M::Error(x)) => Err(x.into()),
None => Ok(None),
}
})
}))
}
}
@ -153,7 +155,7 @@ impl WebSocketWrapper {
Ok((
Self {
inner: SendWrapper::new(ws),
inner: Arc::new(SendWrapper::new(ws)),
open_event,
error_event,
close_event: close_event.clone(),
@ -180,42 +182,35 @@ impl WebSocketWrapper {
() = self.error_event.listen().fuse() => false,
}
}
}
impl WebSocketWrite for WebSocketWrapper {
async fn wisp_write_frame(&mut self, frame: Frame<'_>) -> Result<(), WispError> {
use wisp_mux::ws::OpCode::{Binary, Close, Text};
if self.closed.load(Ordering::Acquire) {
return Err(WispError::WsImplSocketClosed);
}
match frame.opcode {
Binary | Text => self
.inner
.send_with_u8_array(&frame.payload)
.map_err(|x| WebSocketError::SendFailed(format!("{x:?}")).into()),
Close => {
let _ = self.inner.close();
Ok(())
}
_ => Err(WispError::WsImplNotSupported),
}
}
pub fn into_write(self) -> ProviderWispTransportWrite {
let ws = self.inner.clone();
let closed = self.closed.clone();
let close_event = self.close_event.clone();
Box::pin(async_iterator_transport_write(
self,
|this, item| {
Box::pin(async move {
this.inner
.send_with_u8_array(&item)
.map_err(|x| WebSocketError::SendFailed(format!("{x:?}").into()))?;
Ok(this)
})
},
(ws, closed, close_event),
|(ws, closed, close_event)| {
Box::pin(async move {
ws.set_onopen(None);
ws.set_onclose(None);
ws.set_onerror(None);
ws.set_onmessage(None);
closed.store(true, Ordering::Release);
close_event.notify(usize::MAX);
async fn wisp_close(&mut self) -> Result<(), WispError> {
self.inner
.close()
.map_err(|x| WebSocketError::CloseFailed(format!("{x:?}")).into())
}
}
impl Drop for WebSocketWrapper {
fn drop(&mut self) {
self.inner.set_onopen(None);
self.inner.set_onclose(None);
self.inner.set_onerror(None);
self.inner.set_onmessage(None);
self.closed.store(true, Ordering::Release);
self.close_event.notify(usize::MAX);
let _ = self.inner.close();
ws.close()
.map_err(|x| WebSocketError::CloseFailed(format!("{:?}", x)).into())
})
},
))
}
}

10
server/Cargo.toml
View file

@ -8,16 +8,16 @@ workspace = true
[dependencies]
anyhow = "1.0.86"
async-speed-limit = { version = "0.4.2", optional = true }
async-speed-limit = { version = "0.4.2", optional = true, features = ["tokio"] }
async-trait = "0.1.81"
base64 = "0.22.1"
bytes = "1.7.1"
cfg-if = "1.0.0"
clap = { version = "4.5.16", features = ["cargo", "derive"] }
console-subscriber = { version = "0.4.1", optional = true }
ed25519-dalek = { version = "2.1.1", features = ["pem"] }
env_logger = "0.11.5"
event-listener = "5.3.1"
fastwebsockets = { version = "0.8.0", features = ["unstable-split"] }
futures-util = "0.3.30"
hickory-resolver = "0.24.1"
http-body-util = "0.1.2"
@ -39,12 +39,13 @@ sha2 = "0.10.8"
shell-words = { version = "1.1.0", optional = true }
tikv-jemalloc-ctl = { version = "0.6.0", features = ["stats", "use_std"] }
tikv-jemallocator = "0.6.0"
tokio = { version = "1.39.3", features = ["full"] }
tokio = { version = "1.43.0", features = ["full"] }
tokio-rustls = { version = "0.26.0", features = ["ring", "tls12"], default-features = false }
tokio-util = { version = "0.7.11", features = ["codec", "compat", "io-util", "net"] }
tokio-websockets = { version = "0.11.1", features = ["server", "simd", "sha1_smol"] }
toml = { version = "0.8.19", optional = true }
uuid = { version = "1.10.0", features = ["v4"] }
wisp-mux = { version = "*", path = "../wisp", features = ["fastwebsockets", "generic_stream", "certificate"] }
wisp-mux = { version = "*", path = "../wisp", features = ["tokio-websockets", "certificate"] }
[features]
default = ["toml"]
@ -54,6 +55,7 @@ toml = ["dep:toml"]
twisp = ["dep:pty-process", "dep:libc", "dep:shell-words"]
speed-limit = ["dep:async-speed-limit"]
tokio-console = ["dep:console-subscriber"]
[build-dependencies]
vergen-git2 = { version = "1.0.0", features = ["rustc"] }

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6
server/src/config.rs
View file

@ -324,7 +324,7 @@ impl Default for ServerConfig {
bind: (SocketType::default(), "127.0.0.1:4000".to_string()),
transport: SocketTransport::default(),
resolve_ipv6: false,
tcp_nodelay: false,
tcp_nodelay: true,
file_raw_mode: false,
tls_keypair: None,
@ -432,8 +432,8 @@ impl WispConfig {
impl Default for StreamConfig {
fn default() -> Self {
Self {
tcp_nodelay: false,
buffer_size: 16384,
tcp_nodelay: true,
buffer_size: 128 * 1024,
allow_udp: true,
allow_wsproxy_udp: false,

129
server/src/handle/wisp/mod.rs
View file

@ -6,81 +6,61 @@ pub mod wispnet;
use std::{sync::Arc, time::Duration};
use anyhow::Context;
use bytes::BytesMut;
use cfg_if::cfg_if;
use event_listener::Event;
use futures_util::FutureExt;
use futures_util::{future::Either, FutureExt, SinkExt, StreamExt};
use log::{debug, trace};
use tokio::{
io::{AsyncBufReadExt, AsyncWriteExt, BufReader},
net::tcp::{OwnedReadHalf, OwnedWriteHalf},
io::{AsyncWriteExt, BufReader},
net::TcpStream,
select,
task::JoinSet,
time::interval,
};
use tokio_util::compat::FuturesAsyncReadCompatExt;
use tokio_util::compat::{FuturesAsyncReadCompatExt, FuturesAsyncWriteCompatExt};
use uuid::Uuid;
use wisp_mux::{
ws::Payload, CloseReason, ConnectPacket, MuxStream, MuxStreamAsyncRead, MuxStreamWrite,
packet::{CloseReason, ConnectPacket},
stream::MuxStream,
ServerMux,
};
use wispnet::route_wispnet;
use crate::{
route::{WispResult, WispStreamWrite},
route::{WispResult, WispStreamWrite, WispWsStreamWrite},
stream::{ClientStream, ResolvedPacket},
CLIENTS, CONFIG,
};
async fn copy_read_fast(
muxrx: MuxStreamAsyncRead,
mut tcptx: OwnedWriteHalf,
#[cfg(feature = "speed-limit")] limiter: async_speed_limit::Limiter<
async fn copy_fast(
mux: MuxStream<WispStreamWrite>,
tcp: TcpStream,
#[cfg(feature = "speed-limit")] read_limit: async_speed_limit::Limiter<
async_speed_limit::clock::StandardClock,
>,
#[cfg(feature = "speed-limit")] write_limit: async_speed_limit::Limiter<
async_speed_limit::clock::StandardClock,
>,
) -> std::io::Result<()> {
let (muxrx, muxtx) = mux.into_async_rw().into_split();
let mut muxrx = muxrx.compat();
loop {
let buf = muxrx.fill_buf().await?;
if buf.is_empty() {
tcptx.flush().await?;
return Ok(());
}
let mut muxtx = muxtx.compat_write();
#[cfg(feature = "speed-limit")]
limiter.consume(buf.len()).await;
let (tcprx, mut tcptx) = tcp.into_split();
let i = tcptx.write(buf).await?;
if i == 0 {
return Err(std::io::ErrorKind::WriteZero.into());
}
#[cfg(feature = "speed-limit")]
let tcprx = read_limit.limit(tcprx);
#[cfg(feature = "speed-limit")]
let mut tcptx = write_limit.limit(tcptx);
muxrx.consume(i);
}
}
async fn copy_write_fast(
muxtx: MuxStreamWrite<WispStreamWrite>,
tcprx: OwnedReadHalf,
#[cfg(feature = "speed-limit")] limiter: async_speed_limit::Limiter<
async_speed_limit::clock::StandardClock,
>,
) -> anyhow::Result<()> {
let mut tcprx = BufReader::with_capacity(CONFIG.stream.buffer_size, tcprx);
loop {
let buf = tcprx.fill_buf().await?;
let len = buf.len();
if len == 0 {
return Ok(());
}
select! {
x = tokio::io::copy_buf(&mut muxrx, &mut tcptx) => x?,
x = tokio::io::copy(&mut tcprx, &mut muxtx) => x?,
};
#[cfg(feature = "speed-limit")]
limiter.consume(buf.len()).await;
muxtx.write(&buf).await?;
tcprx.consume(len);
}
Ok(())
}
async fn resolve_stream(
@ -147,13 +127,15 @@ async fn forward_stream(
let closer = muxstream.get_close_handle();
let ret: anyhow::Result<()> = async {
let (muxread, muxwrite) = muxstream.into_split();
let muxread = muxread.into_stream().into_asyncread();
let (tcpread, tcpwrite) = stream.into_split();
select! {
x = copy_read_fast(muxread, tcpwrite, #[cfg(feature = "speed-limit")] write_limit) => x?,
x = copy_write_fast(muxwrite, tcpread, #[cfg(feature = "speed-limit")] read_limit) => x?,
}
copy_fast(
muxstream,
stream,
#[cfg(feature = "speed-limit")]
read_limit,
#[cfg(feature = "speed-limit")]
write_limit,
)
.await?;
Ok(())
}
.await;
@ -169,6 +151,8 @@ async fn forward_stream(
}
ClientStream::Udp(stream) => {
let closer = muxstream.get_close_handle();
let (mut read, write) = muxstream.into_split();
let mut write = write.into_async_write().compat_write();
let ret: anyhow::Result<()> = async move {
let mut data = vec![0u8; 65507];
@ -176,10 +160,10 @@ async fn forward_stream(
select! {
size = stream.recv(&mut data) => {
let size = size?;
muxstream.write(&data[..size]).await?;
write.write_all(&data[..size]).await?;
}
data = muxstream.read() => {
if let Some(data) = data? {
data = read.next() => {
if let Some(data) = data.transpose()? {
stream.send(&data).await?;
} else {
break Ok(());
@ -202,8 +186,8 @@ async fn forward_stream(
#[cfg(feature = "twisp")]
ClientStream::Pty(cmd, pty) => {
let closer = muxstream.get_close_handle();
let id = muxstream.stream_id;
let (mut rx, mut tx) = muxstream.into_io().into_asyncrw().into_split();
let id = muxstream.get_stream_id();
let (mut rx, mut tx) = muxstream.into_async_rw().into_split();
match twisp::handle_twisp(id, &mut rx, &mut tx, twisp_map.clone(), pty, cmd).await {
Ok(()) => {
@ -335,7 +319,7 @@ pub async fn handle_wisp(stream: WispResult, is_v2: bool, id: String) -> anyhow:
.build();
let (mux, fut) = Box::pin(
Box::pin(ServerMux::create(
Box::pin(ServerMux::new(
read,
write,
buffer_size,
@ -351,11 +335,8 @@ pub async fn handle_wisp(stream: WispResult, is_v2: bool, id: String) -> anyhow:
debug!(
"new wisp client id {:?} connected with extensions {:?}, downgraded {:?}",
id,
mux.supported_extensions
.iter()
.map(|x| x.get_id())
.collect::<Vec<_>>(),
mux.downgraded
mux.get_extension_ids(),
mux.was_downgraded()
);
let mut set: JoinSet<()> = JoinSet::new();
@ -369,11 +350,19 @@ pub async fn handle_wisp(stream: WispResult, is_v2: bool, id: String) -> anyhow:
let ping_id = id.clone();
set.spawn(async move {
let mut interval = interval(Duration::from_secs(30));
while ping_mux
.send_ping(Payload::Bytes(BytesMut::new()))
.await
.is_ok()
{
let send_ping = || async {
let mut locked = ping_mux.lock_ws().await?;
if let Either::Left(ws) = &mut *locked {
<WispWsStreamWrite as SinkExt<tokio_websockets::Message>>::send(
ws,
tokio_websockets::Message::ping(&[] as &[u8]),
)
.await?;
}
anyhow::Ok(())
};
while (send_ping)().await.is_ok() {
trace!("sent ping to wisp client id {:?}", ping_id);
select! {
_ = interval.tick() => (),
@ -382,7 +371,7 @@ pub async fn handle_wisp(stream: WispResult, is_v2: bool, id: String) -> anyhow:
}
});
while let Some((connect, stream)) = mux.server_new_stream().await {
while let Some((connect, stream)) = mux.wait_for_stream().await {
set.spawn(handle_stream(
connect,
stream,

19
server/src/handle/wisp/twisp.rs
View file

@ -14,10 +14,13 @@ use wisp_mux::{
AnyProtocolExtension, AnyProtocolExtensionBuilder, ProtocolExtension,
ProtocolExtensionBuilder,
},
ws::{DynWebSocketRead, LockingWebSocketWrite},
MuxStreamAsyncRead, MuxStreamAsyncWrite, WispError,
stream::{MuxStreamAsyncRead, MuxStreamAsyncWrite},
ws::{WebSocketRead, WebSocketWrite},
WispError,
};
use crate::route::WispStreamWrite;
pub type TwispMap = Arc<Mutex<HashMap<u32, RawFd>>>;
pub const STREAM_TYPE: u8 = 0x03;
@ -50,8 +53,8 @@ impl ProtocolExtension for TWispServerProtocolExtension {
async fn handle_handshake(
&mut self,
_: &mut DynWebSocketRead,
_: &dyn LockingWebSocketWrite,
_: &mut dyn WebSocketRead,
_: &mut dyn WebSocketWrite,
) -> std::result::Result<(), WispError> {
Ok(())
}
@ -60,8 +63,8 @@ impl ProtocolExtension for TWispServerProtocolExtension {
&mut self,
packet_type: u8,
mut packet: Bytes,
_: &mut DynWebSocketRead,
_: &dyn LockingWebSocketWrite,
_: &mut dyn WebSocketRead,
_: &mut dyn WebSocketWrite,
) -> std::result::Result<(), WispError> {
if packet_type == 0xF0 {
if packet.remaining() < 4 + 2 + 2 {
@ -126,8 +129,8 @@ pub fn new_ext(map: TwispMap) -> AnyProtocolExtensionBuilder {
pub async fn handle_twisp(
id: u32,
streamrx: &mut MuxStreamAsyncRead,
streamtx: &mut MuxStreamAsyncWrite,
streamrx: &mut MuxStreamAsyncRead<WispStreamWrite>,
streamtx: &mut MuxStreamAsyncWrite<WispStreamWrite>,
map: TwispMap,
mut pty: Pty,
mut cmd: Child,

47
server/src/handle/wisp/wispnet.rs
View file

@ -6,17 +6,19 @@ use std::{
use anyhow::{Context, Result};
use async_trait::async_trait;
use bytes::{Buf, BufMut, Bytes, BytesMut};
use futures_util::{SinkExt, StreamExt};
use lazy_static::lazy_static;
use log::debug;
use tokio::{select, sync::Mutex};
use uuid::Uuid;
use wisp_mux::{
extensions::{
AnyProtocolExtension, ProtocolExtension, ProtocolExtensionBuilder, ProtocolExtensionVecExt,
AnyProtocolExtension, ProtocolExtension, ProtocolExtensionBuilder, ProtocolExtensionListExt,
},
ws::{DynWebSocketRead, Frame, LockingWebSocketWrite, Payload},
ClientMux, CloseReason, ConnectPacket, MuxStream, MuxStreamRead, MuxStreamWrite, Role,
WispError, WispV2Handshake,
packet::{CloseReason, ConnectPacket},
stream::{MuxStream, MuxStreamRead, MuxStreamWrite},
ws::{WebSocketRead, WebSocketWrite},
ClientMux, Role, WispError, WispV2Handshake,
};
use crate::{
@ -96,8 +98,8 @@ impl ProtocolExtension for WispnetServerProtocolExtension {
async fn handle_handshake(
&mut self,
_: &mut DynWebSocketRead,
_: &dyn LockingWebSocketWrite,
_: &mut dyn WebSocketRead,
_: &mut dyn WebSocketWrite,
) -> Result<(), WispError> {
Ok(())
}
@ -106,15 +108,16 @@ impl ProtocolExtension for WispnetServerProtocolExtension {
&mut self,
packet_type: u8,
mut packet: Bytes,
_: &mut DynWebSocketRead,
write: &dyn LockingWebSocketWrite,
_: &mut dyn WebSocketRead,
write: &mut dyn WebSocketWrite,
) -> Result<(), WispError> {
if packet_type == Self::ID {
if packet.remaining() < 4 {
return Err(WispError::PacketTooSmall);
}
if packet.get_u32_le() != 0 {
return Err(WispError::InvalidStreamId);
let id = packet.get_u32_le();
if id != 0 {
return Err(WispError::InvalidStreamId(id));
}
let mut out = BytesMut::new();
@ -129,9 +132,7 @@ impl ProtocolExtension for WispnetServerProtocolExtension {
}
drop(locked);
write
.wisp_write_frame(Frame::binary(Payload::Bytes(out)))
.await?;
write.send(out.into()).await?;
}
Ok(())
}
@ -145,11 +146,7 @@ pub async fn route_wispnet(server: u32, packet: ConnectPacket) -> Result<ClientS
if let Some(server) = WISPNET_SERVERS.lock().await.get(&server) {
let stream = server
.mux
.client_new_stream(
packet.stream_type,
packet.destination_hostname,
packet.destination_port,
)
.new_stream(packet.stream_type, packet.host, packet.port)
.await
.context("failed to connect to wispnet server")?;
Ok(ClientStream::Wispnet(stream, server.id.clone()))
@ -159,16 +156,18 @@ pub async fn route_wispnet(server: u32, packet: ConnectPacket) -> Result<ClientS
}
async fn copy_wisp(
rx: MuxStreamRead<WispStreamWrite>,
tx: MuxStreamWrite<WispStreamWrite>,
mut rx: MuxStreamRead<WispStreamWrite>,
mut tx: MuxStreamWrite<WispStreamWrite>,
#[cfg(feature = "speed-limit")] limiter: async_speed_limit::Limiter<
async_speed_limit::clock::StandardClock,
>,
) -> Result<()> {
while let Some(data) = rx.read().await? {
while let Some(data) = rx.next().await {
let data = data?;
#[cfg(feature = "speed-limit")]
limiter.consume(data.len()).await;
tx.write_payload(Payload::Borrowed(data.as_ref())).await?;
tx.send(data).await?;
}
Ok(())
}
@ -219,7 +218,7 @@ pub async fn handle_wispnet(stream: WispResult, id: String) -> Result<()> {
let extensions = vec![WispnetServerProtocolExtensionBuilder(net_id).into()];
let (mux, fut) = Box::pin(
ClientMux::create(read, write, Some(WispV2Handshake::new(extensions)))
ClientMux::new(read, write, Some(WispV2Handshake::new(extensions)))
.await
.context("failed to create client multiplexor")?
.with_required_extensions(&[WispnetServerProtocolExtension::ID]),
@ -228,7 +227,7 @@ pub async fn handle_wispnet(stream: WispResult, id: String) -> Result<()> {
.context("wispnet client did not have wispnet extension")?;
let is_private = mux
.supported_extensions
.get_extensions()
.find_extension::<WispnetServerProtocolExtension>()
.context("failed to find wispnet extension")?
.1;

109
server/src/handle/wsproxy.rs
View file

@ -1,13 +1,14 @@
use std::str::FromStr;
use fastwebsockets::CloseCode;
use futures_util::{SinkExt, StreamExt};
use log::debug;
use tokio::{
io::{AsyncBufReadExt, AsyncWriteExt, BufReader},
select,
};
use tokio_websockets::CloseCode;
use uuid::Uuid;
use wisp_mux::{ws::Payload, CloseReason, ConnectPacket, StreamType};
use wisp_mux::packet::{CloseReason, ConnectPacket, StreamType};
use crate::{
handle::wisp::wispnet::route_wispnet,
@ -25,13 +26,17 @@ pub async fn handle_wsproxy(
udp: bool,
) -> anyhow::Result<()> {
if udp && !CONFIG.stream.allow_wsproxy_udp {
let _ = ws.close(CloseCode::Error.into(), b"udp is blocked").await;
let _ = ws
.close(CloseCode::POLICY_VIOLATION.into(), "udp is blocked")
.await;
return Ok(());
}
let vec: Vec<&str> = path.split('/').last().unwrap().split(':').collect();
let Ok(port) = FromStr::from_str(vec[1]) else {
let _ = ws.close(CloseCode::Error.into(), b"invalid port").await;
let _ = ws
.close(CloseCode::POLICY_VIOLATION.into(), "invalid port")
.await;
return Ok(());
};
let connect = ConnectPacket {
@ -40,15 +45,18 @@ pub async fn handle_wsproxy(
} else {
StreamType::Tcp
},
destination_hostname: vec[0].to_string(),
destination_port: port,
host: vec[0].to_string(),
port,
};
let requested_stream = connect.clone();
let Ok(resolved) = ClientStream::resolve(connect).await else {
let _ = ws
.close(CloseCode::Error.into(), b"failed to resolve host")
.close(
CloseCode::INTERNAL_SERVER_ERROR.into(),
"failed to resolve host",
)
.await;
return Ok(());
};
@ -57,7 +65,10 @@ pub async fn handle_wsproxy(
let resolved = connect.clone();
let Ok(stream) = ClientStream::connect(connect).await else {
let _ = ws
.close(CloseCode::Error.into(), b"failed to connect to host")
.close(
CloseCode::INTERNAL_SERVER_ERROR.into(),
"failed to connect to host",
)
.await;
return Ok(());
};
@ -67,7 +78,10 @@ pub async fn handle_wsproxy(
let resolved = connect.clone();
let Ok(stream) = route_wispnet(server, connect).await else {
let _ = ws
.close(CloseCode::Error.into(), b"failed to connect to host")
.close(
CloseCode::INTERNAL_SERVER_ERROR.into(),
"failed to connect to host",
)
.await;
return Ok(());
};
@ -76,21 +90,23 @@ pub async fn handle_wsproxy(
ResolvedPacket::NoResolvedAddrs => {
let _ = ws
.close(
CloseCode::Error.into(),
b"host did not resolve to any addrs",
CloseCode::INTERNAL_SERVER_ERROR.into(),
"host did not resolve to any addrs",
)
.await;
return Ok(());
}
ResolvedPacket::Blocked => {
let _ = ws.close(CloseCode::Error.into(), b"host is blocked").await;
let _ = ws
.close(CloseCode::POLICY_VIOLATION.into(), "host is blocked")
.await;
return Ok(());
}
ResolvedPacket::Invalid => {
let _ = ws
.close(
CloseCode::Error.into(),
b"invalid host/port/type combination",
CloseCode::POLICY_VIOLATION.into(),
"invalid host/port/type combination",
)
.await;
return Ok(());
@ -119,19 +135,20 @@ pub async fn handle_wsproxy(
loop {
select! {
x = ws.read() => {
match x? {
WebSocketFrame::Data(data) => {
match x.transpose()? {
Some(WebSocketFrame::Data(data)) => {
stream.write_all(&data).await?;
}
WebSocketFrame::Close => {
Some(WebSocketFrame::Close) => {
stream.shutdown().await?;
}
WebSocketFrame::Ignore => {}
Some(WebSocketFrame::Ignore) => {}
None => break Ok(()),
}
}
x = stream.fill_buf() => {
let x = x?;
ws.write(x).await?;
ws.write(x.to_vec()).await?;
let len = x.len();
stream.consume(len);
}
@ -141,11 +158,11 @@ pub async fn handle_wsproxy(
.await;
match ret {
Ok(()) => {
let _ = ws.close(CloseCode::Normal.into(), b"").await;
let _ = ws.close(CloseCode::NORMAL_CLOSURE.into(), "").await;
}
Err(x) => {
let _ = ws
.close(CloseCode::Normal.into(), x.to_string().as_bytes())
.close(CloseCode::NORMAL_CLOSURE.into(), &x.to_string())
.await;
}
}
@ -156,15 +173,16 @@ pub async fn handle_wsproxy(
loop {
select! {
x = ws.read() => {
match x? {
WebSocketFrame::Data(data) => {
match x.transpose()? {
Some(WebSocketFrame::Data(data)) => {
stream.send(&data).await?;
}
WebSocketFrame::Close | WebSocketFrame::Ignore => {}
Some(WebSocketFrame::Close | WebSocketFrame::Ignore) => {}
None => break Ok(()),
}
}
size = stream.recv(&mut data) => {
ws.write(&data[..size?]).await?;
ws.write(data[..size?].to_vec()).await?;
}
}
}
@ -172,11 +190,11 @@ pub async fn handle_wsproxy(
.await;
match ret {
Ok(()) => {
let _ = ws.close(CloseCode::Normal.into(), b"").await;
let _ = ws.close(CloseCode::NORMAL_CLOSURE.into(), "").await;
}
Err(x) => {
let _ = ws
.close(CloseCode::Normal.into(), x.to_string().as_bytes())
.close(CloseCode::NORMAL_CLOSURE.into(), &x.to_string())
.await;
}
}
@ -184,10 +202,10 @@ pub async fn handle_wsproxy(
#[cfg(feature = "twisp")]
ClientStream::Pty(_, _) => {
let _ = ws
.close(CloseCode::Error.into(), b"twisp is not supported")
.close(CloseCode::POLICY_VIOLATION, "twisp is not supported")
.await;
}
ClientStream::Wispnet(stream, mux_id) => {
ClientStream::Wispnet(mut stream, mux_id) => {
if let Some(client) = CLIENTS.lock().await.get(&mux_id) {
client
.0
@ -200,21 +218,22 @@ pub async fn handle_wsproxy(
loop {
select! {
x = ws.read() => {
match x? {
WebSocketFrame::Data(data) => {
stream.write_payload(Payload::Bytes(data)).await?;
match x.transpose()? {
Some(WebSocketFrame::Data(data)) => {
stream.send(data.into()).await?;
}
WebSocketFrame::Close => {
Some(WebSocketFrame::Close) => {
stream.close(CloseReason::Voluntary).await?;
}
WebSocketFrame::Ignore => {}
Some(WebSocketFrame::Ignore) => {}
None => break,
}
}
x = stream.read() => {
let Some(x) = x? else {
x = stream.next() => {
let Some(x) = x else {
break;
};
ws.write(&x).await?;
ws.write(x?).await?;
}
}
}
@ -228,11 +247,11 @@ pub async fn handle_wsproxy(
match ret {
Ok(()) => {
let _ = ws.close(CloseCode::Normal.into(), b"").await;
let _ = ws.close(CloseCode::NORMAL_CLOSURE.into(), "").await;
}
Err(x) => {
let _ = ws
.close(CloseCode::Normal.into(), x.to_string().as_bytes())
.close(CloseCode::NORMAL_CLOSURE.into(), &x.to_string())
.await;
}
}
@ -240,17 +259,21 @@ pub async fn handle_wsproxy(
ClientStream::NoResolvedAddrs => {
let _ = ws
.close(
CloseCode::Error.into(),
b"host did not resolve to any addrs",
CloseCode::INTERNAL_SERVER_ERROR.into(),
"host did not resolve to any addrs",
)
.await;
return Ok(());
}
ClientStream::Blocked => {
let _ = ws.close(CloseCode::Error.into(), b"host is blocked").await;
let _ = ws
.close(CloseCode::POLICY_VIOLATION.into(), "host is blocked")
.await;
}
ClientStream::Invalid => {
let _ = ws.close(CloseCode::Error.into(), b"host is invalid").await;
let _ = ws
.close(CloseCode::POLICY_VIOLATION.into(), "host is invalid")
.await;
}
}

4
server/src/main.rs
View file

@ -24,7 +24,7 @@ use tokio::{
sync::Mutex,
};
use uuid::Uuid;
use wisp_mux::ConnectPacket;
use wisp_mux::packet::ConnectPacket;
pub mod config;
#[doc(hidden)]
@ -41,6 +41,8 @@ mod stream;
mod upgrade;
#[doc(hidden)]
mod util_chain;
#[doc(hidden)]
mod util_map_err;
#[doc(hidden)]
type Client = (Mutex<HashMap<Uuid, (ConnectPacket, ConnectPacket)>>, String);

73
server/src/route.rs
View file

@ -2,7 +2,7 @@ use std::{fmt::Display, future::Future, io::Cursor};
use anyhow::Context;
use bytes::Bytes;
use fastwebsockets::{FragmentCollector, Role, WebSocket, WebSocketRead, WebSocketWrite};
use futures_util::future::Either;
use http_body_util::Full;
use hyper::{
body::Incoming, header::SEC_WEBSOCKET_PROTOCOL, server::conn::http1::Builder,
@ -11,9 +11,9 @@ use hyper::{
use hyper_util::rt::TokioIo;
use log::{debug, error, trace};
use tokio_util::codec::{FramedRead, FramedWrite, LengthDelimitedCodec};
use wisp_mux::{
generic::{GenericWebSocketRead, GenericWebSocketWrite},
ws::{EitherWebSocketRead, EitherWebSocketWrite},
use tokio_websockets::Limits;
use wisp_mux::ws::{
TokioWebsocketsTransport, WebSocketExt, WebSocketSplitRead, WebSocketSplitWrite,
};
use crate::{
@ -23,17 +23,18 @@ use crate::{
stream::WebSocketStreamWrapper,
upgrade::{is_upgrade_request, upgrade},
util_chain::{chain, Chain},
util_map_err::MapErr,
CONFIG,
};
pub type WispStreamRead = EitherWebSocketRead<
WebSocketRead<Chain<Cursor<Bytes>, ServerStreamRead>>,
GenericWebSocketRead<FramedRead<ServerStreamRead, LengthDelimitedCodec>, std::io::Error>,
>;
pub type WispStreamWrite = EitherWebSocketWrite<
WebSocketWrite<ServerStreamWrite>,
GenericWebSocketWrite<FramedWrite<ServerStreamWrite, LengthDelimitedCodec>, std::io::Error>,
pub type WispStreamRead = Either<
WebSocketSplitRead<TokioWebsocketsTransport<Chain<Cursor<Bytes>, ServerStream>>>,
MapErr<FramedRead<ServerStreamRead, LengthDelimitedCodec>>,
>;
pub type WispWsStreamWrite =
WebSocketSplitWrite<TokioWebsocketsTransport<Chain<Cursor<Bytes>, ServerStream>>>;
pub type WispStreamWrite =
Either<WispWsStreamWrite, MapErr<FramedWrite<ServerStreamWrite, LengthDelimitedCodec>>>;
pub type WispResult = (WispStreamRead, WispStreamWrite);
pub enum ServerRouteResult {
@ -216,38 +217,30 @@ pub async fn route(
|fut, res, maybe_ip| async move {
let ws = fut.await.context("failed to await upgrade future")?;
let mut ws =
WebSocket::after_handshake(TokioIo::new(ws), Role::Server);
ws.set_max_message_size(CONFIG.server.max_message_size);
ws.set_auto_pong(false);
match res {
HttpUpgradeResult::Wisp {
has_ws_protocol,
is_wispnet,
} => {
let (read, write) = ws.split(|x| {
let parts = x
.into_inner()
.downcast::<TokioIo<ServerStream>>()
.unwrap();
let (r, w) = parts.io.into_inner().split();
(chain(Cursor::new(parts.read_buf), r), w)
});
let ws = ws.downcast::<TokioIo<ServerStream>>().unwrap();
let ws =
chain(Cursor::new(ws.read_buf), ws.io.into_inner());
let ws = tokio_websockets::ServerBuilder::new()
.limits(Limits::default().max_payload_len(Some(
CONFIG.server.max_message_size,
)))
.serve(ws);
let (read, write) =
TokioWebsocketsTransport(ws).split_fast();
let result = if is_wispnet {
ServerRouteResult::Wispnet {
stream: (
EitherWebSocketRead::Left(read),
EitherWebSocketWrite::Left(write),
),
stream: (Either::Left(read), Either::Left(write)),
}
} else {
ServerRouteResult::Wisp {
stream: (
EitherWebSocketRead::Left(read),
EitherWebSocketWrite::Left(write),
),
stream: (Either::Left(read), Either::Left(write)),
has_ws_protocol,
}
};
@ -255,7 +248,12 @@ pub async fn route(
(callback)(result, maybe_ip);
}
HttpUpgradeResult::WsProxy { path, udp } => {
let ws = WebSocketStreamWrapper(FragmentCollector::new(ws));
let ws = tokio_websockets::ServerBuilder::new()
.limits(Limits::default().max_payload_len(Some(
CONFIG.server.max_message_size,
)))
.serve(TokioIo::new(ws));
let ws = WebSocketStreamWrapper(ws);
(callback)(
ServerRouteResult::WsProxy {
stream: ws,
@ -282,15 +280,12 @@ pub async fn route(
.new_codec();
let (read, write) = stream.split();
let read = GenericWebSocketRead::new(FramedRead::new(read, codec.clone()));
let write = GenericWebSocketWrite::new(FramedWrite::new(write, codec));
let read = MapErr(FramedRead::new(read, codec.clone()));
let write = MapErr(FramedWrite::new(write, codec));
(callback)(
ServerRouteResult::Wisp {
stream: (
EitherWebSocketRead::Right(read),
EitherWebSocketWrite::Right(write),
),
stream: (Either::Right(read), Either::Right(write)),
has_ws_protocol: true,
},
None,

16
server/src/stats.rs
View file

@ -1,7 +1,7 @@
use std::collections::HashMap;
use serde::Serialize;
use wisp_mux::{ConnectPacket, StreamType};
use wisp_mux::packet::{ConnectPacket, StreamType};
use crate::{CLIENTS, CONFIG};
@ -10,8 +10,8 @@ fn format_stream_type(stream_type: StreamType) -> &'static str {
StreamType::Tcp => "tcp",
StreamType::Udp => "udp",
#[cfg(feature = "twisp")]
StreamType::Unknown(crate::handle::wisp::twisp::STREAM_TYPE) => "twisp",
StreamType::Unknown(_) => unreachable!(),
StreamType::Other(crate::handle::wisp::twisp::STREAM_TYPE) => "twisp",
StreamType::Other(_) => unreachable!(),
}
}
@ -36,14 +36,8 @@ impl From<(ConnectPacket, ConnectPacket)> for StreamStats {
fn from(value: (ConnectPacket, ConnectPacket)) -> Self {
Self {
stream_type: format_stream_type(value.0.stream_type).to_string(),
requested: format!(
"{}:{}",
value.0.destination_hostname, value.0.destination_port
),
resolved: format!(
"{}:{}",
value.1.destination_hostname, value.1.destination_port
),
requested: format!("{}:{}", value.0.host, value.0.port),
resolved: format!("{}:{}", value.1.host, value.1.port),
}
}
}

103
server/src/stream.rs
View file

@ -7,13 +7,17 @@ use anyhow::Context;
use base64::{prelude::BASE64_STANDARD, Engine};
use bytes::BytesMut;
use cfg_if::cfg_if;
use fastwebsockets::{FragmentCollector, Frame, OpCode, Payload, WebSocketError};
use futures_util::{SinkExt, StreamExt};
use hyper::upgrade::Upgraded;
use hyper_util::rt::TokioIo;
use log::debug;
use regex::RegexSet;
use tokio::net::{TcpStream, UdpSocket};
use wisp_mux::{ConnectPacket, MuxStream, StreamType};
use tokio_websockets::{CloseCode, Message, Payload, WebSocketStream};
use wisp_mux::{
packet::{ConnectPacket, StreamType},
stream::MuxStream,
};
use crate::{route::WispStreamWrite, CONFIG, RESOLVER};
@ -25,7 +29,7 @@ fn allowed_set(stream_type: StreamType) -> &'static RegexSet {
match stream_type {
StreamType::Tcp => CONFIG.stream.allowed_tcp_hosts(),
StreamType::Udp => CONFIG.stream.allowed_udp_hosts(),
StreamType::Unknown(_) => unreachable!(),
StreamType::Other(_) => unreachable!(),
}
}
@ -33,7 +37,7 @@ fn blocked_set(stream_type: StreamType) -> &'static RegexSet {
match stream_type {
StreamType::Tcp => CONFIG.stream.blocked_tcp_hosts(),
StreamType::Udp => CONFIG.stream.blocked_udp_hosts(),
StreamType::Unknown(_) => unreachable!(),
StreamType::Other(_) => unreachable!(),
}
}
@ -118,8 +122,8 @@ pub enum ResolvedPacket {
impl ClientStream {
pub async fn resolve(packet: ConnectPacket) -> anyhow::Result<ResolvedPacket> {
if CONFIG.wisp.has_wispnet() && packet.destination_hostname.ends_with(".wisp") {
if let Some(wispnet_server) = packet.destination_hostname.split(".wisp").next() {
if CONFIG.wisp.has_wispnet() && packet.host.ends_with(".wisp") {
if let Some(wispnet_server) = packet.host.split(".wisp").next() {
debug!("routing {:?} through wispnet", packet);
let decoded = BASE64_STANDARD
.decode(wispnet_server)
@ -134,14 +138,14 @@ impl ClientStream {
cfg_if! {
if #[cfg(feature = "twisp")] {
if let StreamType::Unknown(ty) = packet.stream_type {
if let StreamType::Other(ty) = packet.stream_type {
if ty == crate::handle::wisp::twisp::STREAM_TYPE && CONFIG.stream.allow_twisp && CONFIG.wisp.wisp_v2 {
return Ok(ResolvedPacket::Valid(packet));
}
return Ok(ResolvedPacket::Invalid);
}
} else {
if matches!(packet.stream_type, StreamType::Unknown(_)) {
if matches!(packet.stream_type, StreamType::Other(_)) {
return Ok(ResolvedPacket::Invalid);
}
}
@ -155,17 +159,17 @@ impl ClientStream {
.stream
.blocked_ports()
.iter()
.any(|x| x.contains(&packet.destination_port))
.any(|x| x.contains(&packet.port))
&& !CONFIG
.stream
.allowed_ports()
.iter()
.any(|x| x.contains(&packet.destination_port))
.any(|x| x.contains(&packet.port))
{
return Ok(ResolvedPacket::Blocked);
}
if let Ok(addr) = IpAddr::from_str(&packet.destination_hostname) {
if let Ok(addr) = IpAddr::from_str(&packet.host) {
if !CONFIG.stream.allow_direct_ip {
return Ok(ResolvedPacket::Blocked);
}
@ -186,7 +190,7 @@ impl ClientStream {
}
if match_addr(
&packet.destination_hostname,
&packet.host,
allowed_set(packet.stream_type),
blocked_set(packet.stream_type),
) {
@ -195,23 +199,23 @@ impl ClientStream {
// allow stream type whitelists through
if match_addr(
&packet.destination_hostname,
&packet.host,
CONFIG.stream.allowed_hosts(),
CONFIG.stream.blocked_hosts(),
) && !allowed_set(packet.stream_type).is_match(&packet.destination_hostname)
) && !allowed_set(packet.stream_type).is_match(&packet.host)
{
return Ok(ResolvedPacket::Blocked);
}
let packet = RESOLVER
.resolve(packet.destination_hostname)
.resolve(packet.host)
.await
.context("failed to resolve hostname")?
.filter(|x| CONFIG.server.resolve_ipv6 || x.is_ipv4())
.map(|x| ConnectPacket {
stream_type: packet.stream_type,
destination_hostname: x.to_string(),
destination_port: packet.destination_port,
host: x.to_string(),
port: packet.port,
})
.next();
@ -221,13 +225,11 @@ impl ClientStream {
pub async fn connect(packet: ConnectPacket) -> anyhow::Result<Self> {
match packet.stream_type {
StreamType::Tcp => {
let ipaddr = IpAddr::from_str(&packet.destination_hostname)
.context("failed to parse hostname as ipaddr")?;
let stream = TcpStream::connect(SocketAddr::new(ipaddr, packet.destination_port))
let ipaddr =
IpAddr::from_str(&packet.host).context("failed to parse hostname as ipaddr")?;
let stream = TcpStream::connect(SocketAddr::new(ipaddr, packet.port))
.await
.with_context(|| {
format!("failed to connect to host {}", packet.destination_hostname)
})?;
.with_context(|| format!("failed to connect to host {}", packet.host))?;
if CONFIG.stream.tcp_nodelay {
stream
@ -242,8 +244,8 @@ impl ClientStream {
return Ok(ClientStream::Blocked);
}
let ipaddr = IpAddr::from_str(&packet.destination_hostname)
.context("failed to parse hostname as ipaddr")?;
let ipaddr =
IpAddr::from_str(&packet.host).context("failed to parse hostname as ipaddr")?;
let bind_addr = if ipaddr.is_ipv4() {
SocketAddr::new(Ipv4Addr::new(0, 0, 0, 0).into(), 0)
@ -253,23 +255,20 @@ impl ClientStream {
let stream = UdpSocket::bind(bind_addr).await?;
stream
.connect(SocketAddr::new(ipaddr, packet.destination_port))
.await?;
stream.connect(SocketAddr::new(ipaddr, packet.port)).await?;
Ok(ClientStream::Udp(stream))
}
#[cfg(feature = "twisp")]
StreamType::Unknown(crate::handle::wisp::twisp::STREAM_TYPE) => {
StreamType::Other(crate::handle::wisp::twisp::STREAM_TYPE) => {
if !CONFIG.stream.allow_twisp {
return Ok(ClientStream::Blocked);
}
let cmdline: Vec<std::ffi::OsString> =
shell_words::split(&packet.destination_hostname)?
.into_iter()
.map(Into::into)
.collect();
let cmdline: Vec<std::ffi::OsString> = shell_words::split(&packet.host)?
.into_iter()
.map(Into::into)
.collect();
let pty = pty_process::Pty::new()?;
let cmd = pty_process::Command::new(&cmdline[0])
@ -278,7 +277,7 @@ impl ClientStream {
Ok(ClientStream::Pty(cmd, pty))
}
StreamType::Unknown(_) => Ok(ClientStream::Invalid),
StreamType::Other(_) => Ok(ClientStream::Invalid),
}
}
}
@ -289,25 +288,31 @@ pub enum WebSocketFrame {
Ignore,
}
pub struct WebSocketStreamWrapper(pub FragmentCollector<TokioIo<Upgraded>>);
pub struct WebSocketStreamWrapper(pub WebSocketStream<TokioIo<Upgraded>>);
impl WebSocketStreamWrapper {
pub async fn read(&mut self) -> Result<WebSocketFrame, WebSocketError> {
let frame = self.0.read_frame().await?;
Ok(match frame.opcode {
OpCode::Text | OpCode::Binary => WebSocketFrame::Data(frame.payload.into()),
OpCode::Close => WebSocketFrame::Close,
_ => WebSocketFrame::Ignore,
})
pub async fn read(&mut self) -> Option<Result<WebSocketFrame, tokio_websockets::Error>> {
let frame = self.0.next().await?;
match frame {
Ok(frame) if frame.is_binary() || frame.is_text() => {
Some(Ok(WebSocketFrame::Data(frame.into_payload().into())))
}
Ok(frame) if frame.is_close() => Some(Ok(WebSocketFrame::Close)),
Ok(_) => Some(Ok(WebSocketFrame::Ignore)),
Err(err) => Some(Err(err)),
}
}
pub async fn write(&mut self, data: &[u8]) -> Result<(), WebSocketError> {
self.0
.write_frame(Frame::binary(Payload::Borrowed(data)))
.await
pub async fn write(&mut self, data: impl Into<Payload>) -> Result<(), tokio_websockets::Error> {
self.0.send(Message::binary(data)).await
}
pub async fn close(&mut self, code: u16, reason: &[u8]) -> Result<(), WebSocketError> {
self.0.write_frame(Frame::close(code, reason)).await
pub async fn close(
&mut self,
code: CloseCode,
reason: &str,
) -> Result<(), tokio_websockets::Error> {
self.0.send(Message::close(Some(code), reason)).await?;
self.0.close().await
}
}

34
server/src/util_chain.rs
View file

@ -9,7 +9,7 @@ use std::{
use futures_util::ready;
use pin_project_lite::pin_project;
use tokio::io::{AsyncBufRead, AsyncRead, ReadBuf};
use tokio::io::{AsyncBufRead, AsyncRead, AsyncWrite, ReadBuf};
pin_project! {
pub struct Chain<T, U> {
@ -99,3 +99,35 @@ where
}
}
}
impl<T, U> AsyncWrite for Chain<T, U>
where
U: AsyncWrite,
{
fn poll_write(
self: Pin<&mut Self>,
cx: &mut Context<'_>,
buf: &[u8],
) -> Poll<Result<usize, io::Error>> {
self.project().second.poll_write(cx, buf)
}
fn poll_write_vectored(
self: Pin<&mut Self>,
cx: &mut Context<'_>,
bufs: &[io::IoSlice<'_>],
) -> Poll<Result<usize, io::Error>> {
self.project().second.poll_write_vectored(cx, bufs)
}
fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), io::Error>> {
self.project().second.poll_flush(cx)
}
fn poll_shutdown(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), io::Error>> {
self.project().second.poll_shutdown(cx)
}
fn is_write_vectored(&self) -> bool {
self.second.is_write_vectored()
}
}

56
server/src/util_map_err.rs Normal file
View file

@ -0,0 +1,56 @@
use bytes::BytesMut;
use futures_util::{Sink, SinkExt, Stream, StreamExt};
use wisp_mux::{ws::Payload, WispError};
pub struct MapErr<T: Unpin>(pub T);
impl<T: Stream<Item = Result<BytesMut, std::io::Error>> + Unpin> Stream for MapErr<T> {
type Item = Result<Payload, WispError>;
fn poll_next(
mut self: std::pin::Pin<&mut Self>,
cx: &mut std::task::Context<'_>,
) -> std::task::Poll<Option<Self::Item>> {
self.0
.poll_next_unpin(cx)
.map_err(|x| WispError::WsImplError(Box::new(x)))
.map_ok(Into::into)
}
}
impl<T: Sink<Payload, Error = std::io::Error> + Unpin> Sink<Payload> for MapErr<T> {
type Error = WispError;
fn poll_ready(
mut self: std::pin::Pin<&mut Self>,
cx: &mut std::task::Context<'_>,
) -> std::task::Poll<Result<(), Self::Error>> {
self.0
.poll_ready_unpin(cx)
.map_err(|x| WispError::WsImplError(Box::new(x)))
}
fn start_send(mut self: std::pin::Pin<&mut Self>, item: Payload) -> Result<(), Self::Error> {
self.0
.start_send_unpin(item)
.map_err(|x| WispError::WsImplError(Box::new(x)))
}
fn poll_close(
mut self: std::pin::Pin<&mut Self>,
cx: &mut std::task::Context<'_>,
) -> std::task::Poll<Result<(), Self::Error>> {
self.0
.poll_close_unpin(cx)
.map_err(|x| WispError::WsImplError(Box::new(x)))
}
fn poll_flush(
mut self: std::pin::Pin<&mut Self>,
cx: &mut std::task::Context<'_>,
) -> std::task::Poll<Result<(), Self::Error>> {
self.0
.poll_flush_unpin(cx)
.map_err(|x| WispError::WsImplError(Box::new(x)))
}
}

9
simple-wisp-client/Cargo.toml
View file

@ -12,18 +12,15 @@ bytes = "1.7.1"
clap = { version = "4.5.16", features = ["cargo", "derive"] }
console-subscriber = { version = "0.4.0", optional = true }
ed25519-dalek = { version = "2.1.1", features = ["pem"] }
fastwebsockets = { version = "0.8.0", features = ["unstable-split", "upgrade"] }
futures = "0.3.30"
http-body-util = "0.1.2"
humantime = "2.1.0"
hyper = { version = "1.4.1", features = ["http1", "client"] }
hyper-util = { version = "0.1.7", features = ["tokio"] }
sha2 = "0.10.8"
simple_moving_average = "1.0.2"
tikv-jemallocator = "0.6.0"
tokio = { version = "1.39.3", features = ["full"] }
wisp-mux = { path = "../wisp", features = ["fastwebsockets"]}
tokio = { version = "1.43.0", features = ["full"] }
tokio-websockets = { version = "0.11.1", features = ["client", "simd", "sha1_smol", "rand", "native-tls"] }
wisp-mux = { path = "../wisp", features = ["tokio-websockets"]}
[features]
tokio-console = ["tokio/tracing", "dep:console-subscriber"]

4
simple-wisp-client/flamegraph.svg
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158
simple-wisp-client/src/main.rs
View file

@ -2,31 +2,25 @@ use atomic_counter::{AtomicCounter, RelaxedCounter};
use bytes::Bytes;
use clap::Parser;
use ed25519_dalek::pkcs8::DecodePrivateKey;
use fastwebsockets::{handshake, WebSocketWrite};
use futures::{future::select_all, FutureExt, TryFutureExt};
use http_body_util::Empty;
use futures::{future::select_all, FutureExt, SinkExt};
use humantime::format_duration;
use hyper::{
header::{CONNECTION, UPGRADE},
Request, Uri,
};
use hyper_util::rt::TokioIo;
use hyper::Uri;
use sha2::{Digest, Sha256};
use simple_moving_average::{SingleSumSMA, SMA};
use std::{
error::Error,
future::Future,
io::{stdout, Cursor, IsTerminal, Write},
io::{stdout, IsTerminal, Write},
net::SocketAddr,
path::PathBuf,
pin::Pin,
process::{abort, exit},
sync::Arc,
sync::{
atomic::{AtomicUsize, Ordering},
Arc,
},
time::{Duration, Instant},
};
use tokio::{
io::AsyncReadExt,
net::{tcp::OwnedWriteHalf, TcpStream},
select,
signal::unix::{signal, SignalKind},
time::{interval, sleep},
@ -37,44 +31,16 @@ use wisp_mux::{
motd::{MotdProtocolExtension, MotdProtocolExtensionBuilder},
password::{PasswordProtocolExtension, PasswordProtocolExtensionBuilder},
udp::{UdpProtocolExtension, UdpProtocolExtensionBuilder},
AnyProtocolExtensionBuilder,
AnyProtocolExtensionBuilder, ProtocolExtensionListExt,
},
ClientMux, StreamType, WispError, WispV2Handshake,
packet::StreamType,
ws::{TokioWebsocketsTransport, WebSocketWrite, WebSocketExt},
ClientMux, WispError, WispV2Handshake,
};
#[global_allocator]
static JEMALLOCATOR: tikv_jemallocator::Jemalloc = tikv_jemallocator::Jemalloc;
#[derive(Debug)]
enum WispClientError {
InvalidUriScheme,
UriHasNoHost,
}
impl std::fmt::Display for WispClientError {
fn fmt(&self, fmt: &mut std::fmt::Formatter) -> Result<(), std::fmt::Error> {
use WispClientError as E;
match self {
E::InvalidUriScheme => write!(fmt, "Invalid URI scheme"),
E::UriHasNoHost => write!(fmt, "URI has no host"),
}
}
}
impl Error for WispClientError {}
struct SpawnExecutor;
impl<Fut> hyper::rt::Executor<Fut> for SpawnExecutor
where
Fut: Future + Send + 'static,
Fut::Output: Send + 'static,
{
fn execute(&self, fut: Fut) {
tokio::task::spawn(fut);
}
}
#[derive(Parser)]
#[command(version = clap::crate_version!())]
struct Cli {
@ -132,19 +98,11 @@ async fn create_mux(
opts: &Cli,
) -> Result<
(
ClientMux<WebSocketWrite<OwnedWriteHalf>>,
ClientMux<impl WebSocketWrite>,
impl Future<Output = Result<(), WispError>> + Send,
),
Box<dyn Error + Send + Sync>,
> {
if opts.wisp.scheme_str().unwrap_or_default() != "ws" {
Err(Box::new(WispClientError::InvalidUriScheme))?;
}
let addr = opts.wisp.host().ok_or(WispClientError::UriHasNoHost)?;
let addr_port = opts.wisp.port_u16().unwrap_or(80);
let addr_path = opts.wisp.path();
let auth = opts.auth.as_ref().map(|auth| {
let split: Vec<_> = auth.split(':').collect();
let username = split[0].to_string();
@ -157,27 +115,13 @@ async fn create_mux(
opts.wisp, opts.packet_size, opts.tcp, opts.streams,
);
let socket = TcpStream::connect(format!("{}:{}", &addr, addr_port)).await?;
let req = Request::builder()
.method("GET")
.uri(addr_path)
.header("Host", addr)
.header(UPGRADE, "websocket")
.header(CONNECTION, "upgrade")
.header(
"Sec-WebSocket-Key",
fastwebsockets::handshake::generate_key(),
)
.header("Sec-WebSocket-Version", "13")
.body(Empty::<Bytes>::new())?;
let (ws, _) = handshake::client(&SpawnExecutor, req, socket).await?;
let (rx, tx) = ws.split(|x| {
let parts = x.into_inner().downcast::<TokioIo<TcpStream>>().unwrap();
let (r, w) = parts.io.into_inner().into_split();
(Cursor::new(parts.read_buf).chain(r), w)
});
let (rx, tx) = TokioWebsocketsTransport(
tokio_websockets::ClientBuilder::from_uri(opts.wisp.clone())
.connect()
.await?
.0,
)
.split_fast();
let mut extensions: Vec<AnyProtocolExtensionBuilder> = Vec::new();
let mut extension_ids: Vec<u8> = Vec::new();
@ -204,12 +148,12 @@ async fn create_mux(
}
let (mux, fut) = if opts.wisp_v2 {
ClientMux::create(rx, tx, Some(WispV2Handshake::new(extensions)))
ClientMux::new(rx, tx, Some(WispV2Handshake::new(extensions)))
.await?
.with_required_extensions(extension_ids.as_slice())
.await?
} else {
ClientMux::create(rx, tx, None)
ClientMux::new(rx, tx, None)
.await?
.with_no_required_extensions()
};
@ -228,14 +172,13 @@ async fn real_main() -> Result<(), Box<dyn Error + Send + Sync>> {
let (mux, fut) = create_mux(&opts).await?;
let motd_extension = mux
.supported_extensions
.iter()
.find_map(|x| x.downcast_ref::<MotdProtocolExtension>());
.get_extensions()
.find_extension::<MotdProtocolExtension>();
println!(
"connected and created ClientMux, was downgraded {}, extensions supported {:?}, motd {:?}\n\n",
mux.downgraded,
mux.supported_extensions
mux.was_downgraded(),
mux.get_extensions()
.iter()
.map(|x| x.get_id())
.collect::<Vec<_>>(),
@ -244,40 +187,32 @@ async fn real_main() -> Result<(), Box<dyn Error + Send + Sync>> {
let mut threads = Vec::with_capacity((opts.streams * 2) + 3);
threads.push(Box::pin(
tokio::spawn(fut)
.map_err(|x| WispError::Other(Box::new(x)))
.map(|x| x.and_then(|x| x)),
)
threads.push(Box::pin(tokio::spawn(fut).map(|x| x.unwrap()))
as Pin<Box<dyn Future<Output = Result<(), WispError>> + Send>>);
let payload = vec![0; 1024 * opts.packet_size];
let payload = Bytes::from(vec![0; 1024 * opts.packet_size]);
let cnt = Arc::new(RelaxedCounter::new(0));
let top = Arc::new(AtomicUsize::new(0));
let start_time = Instant::now();
for _ in 0..opts.streams {
let (cr, cw) = mux
.client_new_stream(StreamType::Tcp, addr_dest.clone(), addr_dest_port)
let (_, mut cw) = mux
.new_stream(StreamType::Tcp, addr_dest.clone(), addr_dest_port)
.await?
.into_split();
let cnt = cnt.clone();
let payload = payload.clone();
threads.push(Box::pin(async move {
while let Ok(()) = cw.write(&payload).await {
cnt.inc();
}
#[allow(unreachable_code)]
Ok::<(), WispError>(())
}));
threads.push(Box::pin(async move {
loop {
let _ = cr.read().await;
cw.feed(payload.clone()).await?;
cnt.inc();
}
}));
}
let cnt_avg = cnt.clone();
let top_avg = top.clone();
threads.push(Box::pin(async move {
let mut interval = interval(Duration::from_millis(100));
let mut avg: SingleSumSMA<usize, usize, 100> = SingleSumSMA::new();
@ -303,15 +238,18 @@ async fn real_main() -> Result<(), Box<dyn Error + Send + Sync>> {
}
stdout().flush().unwrap();
avg.add_sample(now - last_time);
let _ = top_avg.fetch_update(Ordering::Relaxed, Ordering::Relaxed, |old| {
(old < now - last_time).then(|| now - last_time)
});
last_time = now;
}
}));
threads.push(Box::pin(async move {
let mut interrupt =
signal(SignalKind::interrupt()).map_err(|x| WispError::Other(Box::new(x)))?;
let mut terminate =
signal(SignalKind::terminate()).map_err(|x| WispError::Other(Box::new(x)))?;
let mut interrupt = signal(SignalKind::interrupt()).unwrap();
let mut terminate = signal(SignalKind::terminate()).unwrap();
select! {
_ = interrupt.recv() => (),
_ = terminate.recv() => (),
@ -330,10 +268,7 @@ async fn real_main() -> Result<(), Box<dyn Error + Send + Sync>> {
let duration_since = Instant::now().duration_since(start_time);
if let Err(err) = out.0? {
println!("\n\nerr: {:?}", err);
exit(1);
}
dbg!(out.0)??;
out.2.into_iter().for_each(|x| x.abort());
@ -348,8 +283,15 @@ async fn real_main() -> Result<(), Box<dyn Error + Send + Sync>> {
format_duration(duration_since),
(cnt.get() * opts.packet_size) as u64 / duration_since.as_secs(),
);
let top = top.load(Ordering::Relaxed);
println!(
"top: {} packets of &[0; 1024 * {}] ({} KiB) sent in 100ms ({} KiB/s)",
top,
opts.packet_size,
top * opts.packet_size,
top * opts.packet_size * 10
);
}
// force everything to die
abort()
Ok(())
}

1
wisp/.gitignore vendored
View file

@ -1 +0,0 @@
/target

43
wisp/Cargo.toml
View file

@ -1,7 +1,7 @@
[package]
name = "wisp-mux"
version = "6.0.0"
license = "LGPL-3.0-only"
version = "7.0.0"
license = "MIT"
description = "A library for easily creating Wisp servers and clients."
homepage = "https://github.com/MercuryWorkshop/epoxy-tls/tree/multiplexed/wisp"
repository = "https://github.com/MercuryWorkshop/epoxy-tls/tree/multiplexed/wisp"
@ -14,28 +14,31 @@ categories = ["network-programming", "asynchronous", "web-programming::websocket
workspace = true
[dependencies]
async-trait = "0.1.81"
atomic_enum = "0.3.0"
bitflags = { version = "2.6.0", optional = true, features = ["std"] }
bytes = "1.7.1"
ed25519 = { version = "2.2.3", optional = true, features = ["pem", "zeroize"] }
event-listener = "5.3.1"
fastwebsockets = { version = "0.8.0", features = ["unstable-split"], optional = true }
flume = "0.11.0"
futures = "0.3.30"
getrandom = { version = "0.2.15", features = ["std"], optional = true }
pin-project-lite = "0.2.14"
reusable-box-future = "0.2.0"
async-trait = "0.1.85"
bitflags = { version = "2.6.0", optional = true }
bytes = "1.9.0"
ed25519 = { version = "2.2.3", optional = true, features = ["std", "alloc"] }
flume = "0.11.1"
futures = { version = "0.3.31", default-features = false, features = ["std", "async-await"] }
getrandom = { version = "0.2.15", optional = true }
num_enum = "0.7.3"
pin-project = "1.1.8"
rustc-hash = "2.1.0"
thiserror = "2.0.3"
tokio = { version = "1.39.3", optional = true, default-features = false }
slab = "0.4.9"
thiserror = "2.0.9"
tokio = { version = "1.42.0", optional = true }
tokio-tungstenite = { version = "0.26.1", features = ["stream"], optional = true, default-features = false }
tokio-websockets = { version = "0.11.1", optional = true }
[features]
default = ["generic_stream", "certificate"]
fastwebsockets = ["dep:fastwebsockets", "dep:tokio"]
generic_stream = []
default = ["certificate"]
certificate = ["dep:getrandom", "dep:ed25519", "dep:bitflags"]
wasm = ["getrandom/js"]
certificate = ["dep:ed25519", "dep:bitflags", "dep:getrandom"]
tokio-websockets = ["dep:tokio-websockets", "dep:tokio"]
tokio-tungstenite = ["dep:tokio-tungstenite", "dep:tokio"]
[dev-dependencies]
tokio = { version = "1.42.0", features = ["macros", "rt", "time"] }
[package.metadata.docs.rs]
all-features = true

841
wisp/LICENSE
View file

@ -1,841 +0,0 @@
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The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
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Public License instead of this License. But first, please read
<https://www.gnu.org/licenses/why-not-lgpl.html>.

2
wisp/README.md
View file

@ -1,2 +0,0 @@
# wisp-mux
A library for easily creating [Wisp](https://github.com/MercuryWorkshop/wisp-protocol) servers and clients.

30
wisp/src/extensions/cert.rs
View file

@ -10,10 +10,7 @@ use ed25519::{
Signature,
};
use crate::{
ws::{DynWebSocketRead, LockingWebSocketWrite},
Role, WispError,
};
use crate::{Role, WispError};
use super::{AnyProtocolExtension, ProtocolExtension, ProtocolExtensionBuilder};
@ -145,13 +142,6 @@ impl ProtocolExtension for CertAuthProtocolExtension {
Self::ID
}
fn get_supported_packets(&self) -> &'static [u8] {
&[]
}
fn get_congestion_stream_types(&self) -> &'static [u8] {
&[]
}
fn encode(&self) -> Bytes {
match self {
Self::Server {
@ -180,24 +170,6 @@ impl ProtocolExtension for CertAuthProtocolExtension {
}
}
async fn handle_handshake(
&mut self,
_: &mut DynWebSocketRead,
_: &dyn LockingWebSocketWrite,
) -> Result<(), WispError> {
Ok(())
}
async fn handle_packet(
&mut self,
_: u8,
_: Bytes,
_: &mut DynWebSocketRead,
_: &dyn LockingWebSocketWrite,
) -> Result<(), WispError> {
Ok(())
}
fn box_clone(&self) -> Box<dyn ProtocolExtension + Sync + Send> {
Box::new(self.clone())
}

101
wisp/src/extensions/mod.rs
View file

@ -12,14 +12,18 @@ use std::{
};
use async_trait::async_trait;
use bytes::{BufMut, Bytes, BytesMut};
use bytes::{BufMut, Bytes};
use crate::{
ws::{DynWebSocketRead, LockingWebSocketWrite},
ws::{PayloadMut, WebSocketRead, WebSocketWrite},
Role, WispError,
};
/// Type-erased protocol extension that implements Clone.
mod private {
pub struct Sealed;
}
/// Type-erased protocol extension.
#[derive(Debug)]
pub struct AnyProtocolExtension(Box<dyn ProtocolExtension>);
@ -64,14 +68,12 @@ impl Clone for AnyProtocolExtension {
}
}
impl From<AnyProtocolExtension> for Bytes {
fn from(value: AnyProtocolExtension) -> Self {
let mut bytes = BytesMut::with_capacity(5);
let payload = value.encode();
bytes.put_u8(value.get_id());
bytes.put_u32_le(payload.len() as u32);
bytes.extend(payload);
bytes.freeze()
impl AnyProtocolExtension {
pub(crate) fn encode_into(&self, packet: &mut PayloadMut) {
let payload = self.encode();
packet.put_u8(self.get_id());
packet.put_u32_le(payload.len() as u32);
packet.extend(payload);
}
}
@ -92,11 +94,15 @@ pub trait ProtocolExtension: std::fmt::Debug + Sync + Send + 'static {
/// Get the protocol extension's supported packets.
///
/// Used to decide whether to call the protocol extension's packet handler.
fn get_supported_packets(&self) -> &'static [u8];
fn get_supported_packets(&self) -> &'static [u8] {
&[]
}
/// Get stream types that should be treated as TCP.
///
/// Used to decide whether to handle congestion control for that stream type.
fn get_congestion_stream_types(&self) -> &'static [u8];
fn get_congestion_stream_types(&self) -> &'static [u8] {
&[]
}
/// Encode self into Bytes.
fn encode(&self) -> Bytes;
@ -106,24 +112,31 @@ pub trait ProtocolExtension: std::fmt::Debug + Sync + Send + 'static {
/// This should be used to send or receive data before any streams are created.
async fn handle_handshake(
&mut self,
read: &mut DynWebSocketRead,
write: &dyn LockingWebSocketWrite,
) -> Result<(), WispError>;
read: &mut dyn WebSocketRead,
write: &mut dyn WebSocketWrite,
) -> Result<(), WispError> {
let _ = (read, write);
Ok(())
}
/// Handle receiving a packet.
async fn handle_packet(
&mut self,
packet_type: u8,
packet: Bytes,
read: &mut DynWebSocketRead,
write: &dyn LockingWebSocketWrite,
) -> Result<(), WispError>;
read: &mut dyn WebSocketRead,
write: &mut dyn WebSocketWrite,
) -> Result<(), WispError> {
let _ = (packet_type, packet, read, write);
Ok(())
}
/// Clone the protocol extension.
fn box_clone(&self) -> Box<dyn ProtocolExtension + Sync + Send>;
#[doc(hidden)]
/// Do not override.
fn __internal_type_id(&self) -> TypeId {
fn __internal_type_id(&self, _: private::Sealed) -> TypeId {
TypeId::of::<Self>()
}
}
@ -131,7 +144,7 @@ pub trait ProtocolExtension: std::fmt::Debug + Sync + Send + 'static {
impl dyn ProtocolExtension {
fn __is<T: ProtocolExtension>(&self) -> bool {
let t = TypeId::of::<T>();
self.__internal_type_id() == t
self.__internal_type_id(private::Sealed) == t
}
fn __downcast<T: ProtocolExtension>(self: Box<Self>) -> Result<Box<T>, Box<Self>> {
@ -183,8 +196,9 @@ pub trait ProtocolExtensionBuilder: Sync + Send + 'static {
/// This is called first on the server and second on the client.
fn build_to_extension(&mut self, role: Role) -> Result<AnyProtocolExtension, WispError>;
#[doc(hidden)]
/// Do not override.
fn __internal_type_id(&self) -> TypeId {
fn __internal_type_id(&self, _sealed: private::Sealed) -> TypeId {
TypeId::of::<Self>()
}
}
@ -192,7 +206,7 @@ pub trait ProtocolExtensionBuilder: Sync + Send + 'static {
impl dyn ProtocolExtensionBuilder {
fn __is<T: ProtocolExtensionBuilder>(&self) -> bool {
let t = TypeId::of::<T>();
self.__internal_type_id() == t
self.__internal_type_id(private::Sealed) == t
}
fn __downcast<T: ProtocolExtensionBuilder>(self: Box<Self>) -> Result<Box<T>, Box<Self>> {
@ -267,49 +281,78 @@ impl<T: ProtocolExtensionBuilder> From<T> for AnyProtocolExtensionBuilder {
}
}
/// Helper functions for `Vec<AnyProtocolExtensionBuilder>`
pub trait ProtocolExtensionBuilderVecExt {
/// Helper functions for `[AnyProtocolExtensionBuilder]`
pub trait ProtocolExtensionBuilderListExt {
/// Returns a reference to the protocol extension builder specified, if it was found.
fn find_extension<T: ProtocolExtensionBuilder>(&self) -> Option<&T>;
/// Returns a mutable reference to the protocol extension builder specified, if it was found.
fn find_extension_mut<T: ProtocolExtensionBuilder>(&mut self) -> Option<&mut T>;
}
/// Helper functions for `Vec<AnyProtocolExtensionBuilder>`
pub trait ProtocolExtensionBuilderVecExt {
/// Removes any instances of the protocol extension builder specified, if it was found.
fn remove_extension<T: ProtocolExtensionBuilder>(&mut self);
}
impl ProtocolExtensionBuilderVecExt for Vec<AnyProtocolExtensionBuilder> {
impl ProtocolExtensionBuilderListExt for [AnyProtocolExtensionBuilder] {
fn find_extension<T: ProtocolExtensionBuilder>(&self) -> Option<&T> {
self.iter().find_map(|x| x.downcast_ref::<T>())
}
fn find_extension_mut<T: ProtocolExtensionBuilder>(&mut self) -> Option<&mut T> {
self.iter_mut().find_map(|x| x.downcast_mut::<T>())
}
}
impl ProtocolExtensionBuilderListExt for Vec<AnyProtocolExtensionBuilder> {
fn find_extension<T: ProtocolExtensionBuilder>(&self) -> Option<&T> {
self.as_slice().find_extension()
}
fn find_extension_mut<T: ProtocolExtensionBuilder>(&mut self) -> Option<&mut T> {
self.as_mut_slice().find_extension_mut()
}
}
impl ProtocolExtensionBuilderVecExt for Vec<AnyProtocolExtensionBuilder> {
fn remove_extension<T: ProtocolExtensionBuilder>(&mut self) {
self.retain(|x| x.downcast_ref::<T>().is_none());
}
}
/// Helper functions for `Vec<AnyProtocolExtension>`
pub trait ProtocolExtensionVecExt {
/// Helper functions for `[AnyProtocolExtension]`
pub trait ProtocolExtensionListExt {
/// Returns a reference to the protocol extension specified, if it was found.
fn find_extension<T: ProtocolExtension>(&self) -> Option<&T>;
/// Returns a mutable reference to the protocol extension specified, if it was found.
fn find_extension_mut<T: ProtocolExtension>(&mut self) -> Option<&mut T>;
}
/// Helper functions for `Vec<AnyProtocolExtension>`
pub trait ProtocolExtensionVecExt {
/// Removes any instances of the protocol extension specified, if it was found.
fn remove_extension<T: ProtocolExtension>(&mut self);
}
impl ProtocolExtensionVecExt for Vec<AnyProtocolExtension> {
impl ProtocolExtensionListExt for [AnyProtocolExtension] {
fn find_extension<T: ProtocolExtension>(&self) -> Option<&T> {
self.iter().find_map(|x| x.downcast_ref::<T>())
}
fn find_extension_mut<T: ProtocolExtension>(&mut self) -> Option<&mut T> {
self.iter_mut().find_map(|x| x.downcast_mut::<T>())
}
}
impl ProtocolExtensionListExt for Vec<AnyProtocolExtension> {
fn find_extension<T: ProtocolExtension>(&self) -> Option<&T> {
self.as_slice().find_extension()
}
fn find_extension_mut<T: ProtocolExtension>(&mut self) -> Option<&mut T> {
self.as_mut_slice().find_extension_mut()
}
}
impl ProtocolExtensionVecExt for Vec<AnyProtocolExtension> {
fn remove_extension<T: ProtocolExtension>(&mut self) {
self.retain(|x| x.downcast_ref::<T>().is_none());
}

31
wisp/src/extensions/motd.rs
View file

@ -5,10 +5,7 @@
use async_trait::async_trait;
use bytes::Bytes;
use crate::{
ws::{DynWebSocketRead, LockingWebSocketWrite},
Role, WispError,
};
use crate::{Role, WispError};
use super::{AnyProtocolExtension, ProtocolExtension, ProtocolExtensionBuilder};
@ -31,14 +28,6 @@ impl ProtocolExtension for MotdProtocolExtension {
Self::ID
}
fn get_supported_packets(&self) -> &'static [u8] {
&[]
}
fn get_congestion_stream_types(&self) -> &'static [u8] {
&[]
}
fn encode(&self) -> Bytes {
match self.role {
Role::Server => Bytes::from(self.motd.as_bytes().to_vec()),
@ -46,24 +35,6 @@ impl ProtocolExtension for MotdProtocolExtension {
}
}
async fn handle_handshake(
&mut self,
_: &mut DynWebSocketRead,
_: &dyn LockingWebSocketWrite,
) -> Result<(), WispError> {
Ok(())
}
async fn handle_packet(
&mut self,
_: u8,
_: Bytes,
_: &mut DynWebSocketRead,
_: &dyn LockingWebSocketWrite,
) -> Result<(), WispError> {
Ok(())
}
fn box_clone(&self) -> Box<dyn ProtocolExtension + Sync + Send> {
Box::new(self.clone())
}

35
wisp/src/extensions/password.rs
View file

@ -8,10 +8,7 @@ use std::collections::HashMap;
use async_trait::async_trait;
use bytes::{Buf, BufMut, Bytes, BytesMut};
use crate::{
ws::{DynWebSocketRead, LockingWebSocketWrite},
Role, WispError,
};
use crate::{Role, WispError};
use super::{AnyProtocolExtension, ProtocolExtension, ProtocolExtensionBuilder};
@ -60,18 +57,6 @@ impl ProtocolExtension for PasswordProtocolExtension {
PASSWORD_PROTOCOL_EXTENSION_ID
}
fn box_clone(&self) -> Box<dyn ProtocolExtension + Sync + Send> {
Box::new(self.clone())
}
fn get_supported_packets(&self) -> &'static [u8] {
&[]
}
fn get_congestion_stream_types(&self) -> &'static [u8] {
&[]
}
fn encode(&self) -> Bytes {
match self {
Self::ServerBeforeClientInfo { required } => {
@ -92,22 +77,8 @@ impl ProtocolExtension for PasswordProtocolExtension {
}
}
async fn handle_handshake(
&mut self,
_: &mut DynWebSocketRead,
_: &dyn LockingWebSocketWrite,
) -> Result<(), WispError> {
Ok(())
}
async fn handle_packet(
&mut self,
_: u8,
_: Bytes,
_: &mut DynWebSocketRead,
_: &dyn LockingWebSocketWrite,
) -> Result<(), WispError> {
Err(WispError::ExtensionImplNotSupported)
fn box_clone(&self) -> Box<dyn ProtocolExtension + Sync + Send> {
Box::new(self.clone())
}
}

31
wisp/src/extensions/udp.rs
View file

@ -4,10 +4,7 @@
use async_trait::async_trait;
use bytes::Bytes;
use crate::{
ws::{DynWebSocketRead, LockingWebSocketWrite},
WispError,
};
use crate::WispError;
use super::{AnyProtocolExtension, ProtocolExtension, ProtocolExtensionBuilder};
@ -26,36 +23,10 @@ impl ProtocolExtension for UdpProtocolExtension {
Self::ID
}
fn get_supported_packets(&self) -> &'static [u8] {
&[]
}
fn get_congestion_stream_types(&self) -> &'static [u8] {
&[]
}
fn encode(&self) -> Bytes {
Bytes::new()
}
async fn handle_handshake(
&mut self,
_: &mut DynWebSocketRead,
_: &dyn LockingWebSocketWrite,
) -> Result<(), WispError> {
Ok(())
}
async fn handle_packet(
&mut self,
_: u8,
_: Bytes,
_: &mut DynWebSocketRead,
_: &dyn LockingWebSocketWrite,
) -> Result<(), WispError> {
Ok(())
}
fn box_clone(&self) -> Box<dyn ProtocolExtension + Sync + Send> {
Box::new(Self)
}

221
wisp/src/fastwebsockets.rs
View file

@ -1,221 +0,0 @@
//! `WebSocketRead` + `WebSocketWrite` implementation for the fastwebsockets library.
use bytes::BytesMut;
use fastwebsockets::{
CloseCode, FragmentCollectorRead, Frame, OpCode, Payload, WebSocketError, WebSocketRead,
WebSocketWrite,
};
use tokio::io::{AsyncRead, AsyncWrite};
use crate::{ws::LockingWebSocketWrite, WispError};
fn match_payload(payload: Payload<'_>) -> crate::ws::Payload<'_> {
match payload {
Payload::Bytes(x) => crate::ws::Payload::Bytes(x),
Payload::Owned(x) => crate::ws::Payload::Bytes(BytesMut::from(&*x)),
Payload::BorrowedMut(x) => crate::ws::Payload::Borrowed(&*x),
Payload::Borrowed(x) => crate::ws::Payload::Borrowed(x),
}
}
fn match_payload_reverse(payload: crate::ws::Payload<'_>) -> Payload<'_> {
match payload {
crate::ws::Payload::Bytes(x) => Payload::Bytes(x),
crate::ws::Payload::Borrowed(x) => Payload::Borrowed(x),
}
}
fn payload_to_bytesmut(payload: Payload<'_>) -> BytesMut {
match payload {
Payload::Borrowed(borrowed) => BytesMut::from(borrowed),
Payload::BorrowedMut(borrowed_mut) => BytesMut::from(&*borrowed_mut),
Payload::Owned(owned) => BytesMut::from(owned.as_slice()),
Payload::Bytes(b) => b,
}
}
impl From<OpCode> for crate::ws::OpCode {
fn from(opcode: OpCode) -> Self {
use OpCode as O;
match opcode {
O::Continuation => {
unreachable!("continuation should never be recieved when using a fragmentcollector")
}
O::Text => Self::Text,
O::Binary => Self::Binary,
O::Close => Self::Close,
O::Ping => Self::Ping,
O::Pong => Self::Pong,
}
}
}
impl<'a> From<Frame<'a>> for crate::ws::Frame<'a> {
fn from(frame: Frame<'a>) -> Self {
Self {
finished: frame.fin,
opcode: frame.opcode.into(),
payload: match_payload(frame.payload),
}
}
}
impl<'a> From<crate::ws::Frame<'a>> for Frame<'a> {
fn from(frame: crate::ws::Frame<'a>) -> Self {
use crate::ws::OpCode as O;
let payload = match_payload_reverse(frame.payload);
match frame.opcode {
O::Text => Self::text(payload),
O::Binary => Self::binary(payload),
O::Close => Self::close_raw(payload),
O::Ping => Self::new(true, OpCode::Ping, None, payload),
O::Pong => Self::pong(payload),
}
}
}
impl From<WebSocketError> for crate::WispError {
fn from(err: WebSocketError) -> Self {
if let WebSocketError::ConnectionClosed = err {
Self::WsImplSocketClosed
} else {
Self::WsImplError(Box::new(err))
}
}
}
impl<S: AsyncRead + Unpin + Send> crate::ws::WebSocketRead for FragmentCollectorRead<S> {
async fn wisp_read_frame(
&mut self,
tx: &dyn LockingWebSocketWrite,
) -> Result<crate::ws::Frame<'static>, WispError> {
Ok(self
.read_frame(&mut |frame| async { tx.wisp_write_frame(frame.into()).await })
.await?
.into())
}
}
impl<S: AsyncRead + Unpin + Send> crate::ws::WebSocketRead for WebSocketRead<S> {
async fn wisp_read_frame(
&mut self,
tx: &dyn LockingWebSocketWrite,
) -> Result<crate::ws::Frame<'static>, WispError> {
let mut frame = self
.read_frame(&mut |frame| async { tx.wisp_write_frame(frame.into()).await })
.await?;
if frame.opcode == OpCode::Continuation {
return Err(WispError::WsImplError(Box::new(
WebSocketError::InvalidContinuationFrame,
)));
}
let mut buf = payload_to_bytesmut(frame.payload);
let opcode = frame.opcode;
while !frame.fin {
frame = self
.read_frame(&mut |frame| async { tx.wisp_write_frame(frame.into()).await })
.await?;
if frame.opcode != OpCode::Continuation {
return Err(WispError::WsImplError(Box::new(
WebSocketError::InvalidContinuationFrame,
)));
}
buf.extend_from_slice(&frame.payload);
}
Ok(crate::ws::Frame {
opcode: opcode.into(),
payload: crate::ws::Payload::Bytes(buf),
finished: frame.fin,
})
}
async fn wisp_read_split(
&mut self,
tx: &dyn LockingWebSocketWrite,
) -> Result<(crate::ws::Frame<'static>, Option<crate::ws::Frame<'static>>), WispError> {
let mut frame_cnt = 1;
let mut frame = self
.read_frame(&mut |frame| async { tx.wisp_write_frame(frame.into()).await })
.await?;
let mut extra_frame = None;
if frame.opcode == OpCode::Continuation {
return Err(WispError::WsImplError(Box::new(
WebSocketError::InvalidContinuationFrame,
)));
}
let mut buf = payload_to_bytesmut(frame.payload);
let opcode = frame.opcode;
while !frame.fin {
frame = self
.read_frame(&mut |frame| async { tx.wisp_write_frame(frame.into()).await })
.await?;
if frame.opcode != OpCode::Continuation {
return Err(WispError::WsImplError(Box::new(
WebSocketError::InvalidContinuationFrame,
)));
}
if frame_cnt == 1 {
let payload = payload_to_bytesmut(frame.payload);
extra_frame = Some(crate::ws::Frame {
opcode: opcode.into(),
payload: crate::ws::Payload::Bytes(payload),
finished: true,
});
} else if frame_cnt == 2 {
let extra_payload = extra_frame.take().unwrap().payload;
buf.extend_from_slice(&extra_payload);
buf.extend_from_slice(&frame.payload);
} else {
buf.extend_from_slice(&frame.payload);
}
frame_cnt += 1;
}
Ok((
crate::ws::Frame {
opcode: opcode.into(),
payload: crate::ws::Payload::Bytes(buf),
finished: frame.fin,
},
extra_frame,
))
}
}
impl<S: AsyncWrite + Unpin + Send> crate::ws::WebSocketWrite for WebSocketWrite<S> {
async fn wisp_write_frame(&mut self, frame: crate::ws::Frame<'_>) -> Result<(), WispError> {
self.write_frame(frame.into()).await.map_err(Into::into)
}
async fn wisp_write_split(
&mut self,
header: crate::ws::Frame<'_>,
body: crate::ws::Frame<'_>,
) -> Result<(), WispError> {
let mut header = Frame::from(header);
header.fin = false;
self.write_frame(header).await?;
let mut body = Frame::from(body);
body.opcode = OpCode::Continuation;
self.write_frame(body).await?;
Ok(())
}
async fn wisp_close(&mut self) -> Result<(), WispError> {
self.write_frame(Frame::close(CloseCode::Normal.into(), b""))
.await
.map_err(Into::into)
}
}

88
wisp/src/generic.rs
View file

@ -1,88 +0,0 @@
//! `WebSocketRead` and `WebSocketWrite` implementation for generic `Stream`s and `Sink`s.
use bytes::{Bytes, BytesMut};
use futures::{Sink, SinkExt, Stream, StreamExt};
use std::error::Error;
use crate::{
ws::{Frame, LockingWebSocketWrite, OpCode, Payload, WebSocketRead, WebSocketWrite},
WispError,
};
/// `WebSocketRead` implementation for generic `Stream`s.
pub struct GenericWebSocketRead<
T: Stream<Item = Result<BytesMut, E>> + Send + Unpin,
E: Error + Sync + Send + 'static,
>(T);
impl<T: Stream<Item = Result<BytesMut, E>> + Send + Unpin, E: Error + Sync + Send + 'static>
GenericWebSocketRead<T, E>
{
/// Create a new wrapper `WebSocketRead` implementation.
pub fn new(stream: T) -> Self {
Self(stream)
}
/// Get the inner `Stream` from the wrapper.
pub fn into_inner(self) -> T {
self.0
}
}
impl<T: Stream<Item = Result<BytesMut, E>> + Send + Unpin, E: Error + Sync + Send + 'static>
WebSocketRead for GenericWebSocketRead<T, E>
{
async fn wisp_read_frame(
&mut self,
_tx: &dyn LockingWebSocketWrite,
) -> Result<Frame<'static>, WispError> {
match self.0.next().await {
Some(data) => Ok(Frame::binary(Payload::Bytes(
data.map_err(|x| WispError::WsImplError(Box::new(x)))?,
))),
None => Ok(Frame::close(Payload::Bytes(BytesMut::new()))),
}
}
}
/// `WebSocketWrite` implementation for generic `Sink`s.
pub struct GenericWebSocketWrite<
T: Sink<Bytes, Error = E> + Send + Unpin,
E: Error + Sync + Send + 'static,
>(T);
impl<T: Sink<Bytes, Error = E> + Send + Unpin, E: Error + Sync + Send + 'static>
GenericWebSocketWrite<T, E>
{
/// Create a new wrapper `WebSocketWrite` implementation.
pub fn new(stream: T) -> Self {
Self(stream)
}
/// Get the inner `Sink` from the wrapper.
pub fn into_inner(self) -> T {
self.0
}
}
impl<T: Sink<Bytes, Error = E> + Send + Unpin, E: Error + Sync + Send + 'static> WebSocketWrite
for GenericWebSocketWrite<T, E>
{
async fn wisp_write_frame(&mut self, frame: Frame<'_>) -> Result<(), WispError> {
if frame.opcode == OpCode::Binary {
self.0
.send(BytesMut::from(frame.payload).freeze())
.await
.map_err(|x| WispError::WsImplError(Box::new(x)))
} else {
Ok(())
}
}
async fn wisp_close(&mut self) -> Result<(), WispError> {
self.0
.close()
.await
.map_err(|x| WispError::WsImplError(Box::new(x)))
}
}

110
wisp/src/lib.rs
View file

@ -1,88 +1,51 @@
#![cfg_attr(docsrs, feature(doc_cfg))]
#![deny(missing_docs, clippy::todo)]
#![cfg_attr(docsrs, feature(doc_cfg, doc_auto_cfg))]
//! A library for easily creating [Wisp] clients and servers.
//!
//! [Wisp]: https://github.com/MercuryWorkshop/wisp-protocol
use std::error::Error;
use packet::WispVersion;
use thiserror::Error as ErrorDerive;
pub mod extensions;
#[cfg(feature = "fastwebsockets")]
#[cfg_attr(docsrs, doc(cfg(feature = "fastwebsockets")))]
mod fastwebsockets;
#[cfg(feature = "generic_stream")]
#[cfg_attr(docsrs, doc(cfg(feature = "generic_stream")))]
pub mod generic;
mod locked_sink;
mod mux;
mod packet;
mod stream;
pub mod packet;
pub mod stream;
pub mod ws;
pub use crate::{mux::*, packet::*, stream::*};
pub use mux::*;
use thiserror::Error;
use locked_sink::LockedWebSocketWrite;
pub use locked_sink::{LockedSinkGuard, LockedWebSocketWriteGuard};
/// Wisp version supported by this crate.
pub const WISP_VERSION: WispVersion = WispVersion { major: 2, minor: 0 };
/// The role of the multiplexor.
#[derive(Debug, PartialEq, Copy, Clone)]
pub enum Role {
/// Client side, can create new streams.
Client,
/// Server side, can listen for streams created by the client.
Server,
}
/// Errors the Wisp implementation can return.
#[derive(Error, Debug)]
#[derive(Debug, ErrorDerive)]
pub enum WispError {
/// The packet received did not have enough data.
/// Stream ID was invalid.
#[error("Invalid stream ID: {0}")]
InvalidStreamId(u32),
/// Packet type was invalid.
#[error("Invalid packet type: {0:#02X}")]
InvalidPacketType(u8),
/// Packet was too small.
#[error("Packet too small")]
PacketTooSmall,
/// The packet received had an invalid type.
#[error("Invalid packet type")]
InvalidPacketType,
/// The stream had an invalid ID.
#[error("Invalid steam ID")]
InvalidStreamId,
/// The close packet had an invalid reason.
#[error("Invalid close reason")]
InvalidCloseReason,
/// The max stream count was reached.
#[error("Maximum stream count reached")]
MaxStreamCountReached,
/// The Wisp protocol version was incompatible.
#[error("Incompatible Wisp protocol version: found {0} but needed {1}")]
IncompatibleProtocolVersion(WispVersion, WispVersion),
/// The stream had already been closed.
/// The stream was closed already.
#[error("Stream already closed")]
StreamAlreadyClosed,
/// The max stream count was reached.
#[error("Maximum stream count reached")]
MaxStreamCountReached,
/// The websocket frame received had an invalid type.
#[error("Invalid websocket frame type: {0:?}")]
WsFrameInvalidType(ws::OpCode),
/// The websocket frame received was not finished.
#[error("Unfinished websocket frame")]
WsFrameNotFinished,
/// Error specific to the websocket implementation.
#[error("Websocket implementation error: {0:?}")]
WsImplError(Box<dyn std::error::Error + Sync + Send>),
/// The websocket implementation socket closed.
#[error("Websocket implementation error: socket closed")]
WsImplSocketClosed,
/// The websocket implementation did not support the action.
#[error("Websocket implementation error: not supported")]
WsImplNotSupported,
/// The string was invalid UTF-8.
#[error("UTF-8 error: {0}")]
Utf8Error(#[from] std::str::Utf8Error),
/// The integer failed to convert.
/// Failed to parse bytes as UTF-8.
#[error("Invalid UTF-8: {0}")]
Utf8(#[from] std::str::Utf8Error),
#[error("Integer conversion error: {0}")]
TryFromIntError(#[from] std::num::TryFromIntError),
/// Other error.
#[error("Other: {0:?}")]
Other(Box<dyn std::error::Error + Sync + Send>),
/// Failed to send message to multiplexor task.
#[error("Failed to send multiplexor message")]
@ -97,6 +60,13 @@ pub enum WispError {
#[error("Multiplexor task already started")]
MuxTaskStarted,
/// Error specific to the websocket implementation.
#[error("Websocket implementation error: {0}")]
WsImplError(Box<dyn Error + Sync + Send>),
/// Websocket implementation: websocket closed
#[error("Websocket implementation error: websocket closed")]
WsImplSocketClosed,
/// Error specific to the protocol extension implementation.
#[error("Protocol extension implementation error: {0:?}")]
ExtensionImplError(Box<dyn std::error::Error + Sync + Send>),
@ -124,3 +94,15 @@ pub enum WispError {
#[error("Password protocol extension: No signing key provided")]
CertAuthExtensionNoKey,
}
impl From<std::string::FromUtf8Error> for WispError {
fn from(value: std::string::FromUtf8Error) -> Self {
Self::Utf8(value.utf8_error())
}
}
#[derive(Copy, Clone, Debug, Eq, PartialEq)]
pub enum Role {
Server,
Client,
}

330
wisp/src/locked_sink.rs Normal file
View file

@ -0,0 +1,330 @@
//! unfair async mutex that doesn't have guards by default
use std::{
cell::UnsafeCell,
future::poll_fn,
marker::PhantomData,
ops::{Deref, DerefMut},
pin::Pin,
sync::{
atomic::{AtomicBool, Ordering},
Arc, Mutex, MutexGuard,
},
task::{Context, Poll, Waker},
};
use futures::Sink;
use slab::Slab;
use crate::ws::{Payload, WebSocketWrite};
// it would be nice to have type_alias_bounds but oh well
#[expect(type_alias_bounds)]
pub(crate) type LockedWebSocketWrite<I: WebSocketWrite> = LockedSink<I, Payload>;
#[expect(type_alias_bounds)]
pub type LockedWebSocketWriteGuard<I: WebSocketWrite> = LockedSinkGuard<I, Payload>;
pub(crate) enum Waiter {
Sleeping(Waker),
Woken,
}
impl Waiter {
pub fn new(cx: &mut Context<'_>) -> Self {
Self::Sleeping(cx.waker().clone())
}
pub fn register(&mut self, cx: &mut Context<'_>) {
match self {
Self::Sleeping(x) => x.clone_from(cx.waker()),
Self::Woken => *self = Self::Sleeping(cx.waker().clone()),
}
}
pub fn wake(&mut self) -> Option<Waker> {
match std::mem::replace(self, Self::Woken) {
Self::Sleeping(x) => Some(x),
Self::Woken => None,
}
}
}
struct WakerList {
inner: Slab<Waiter>,
}
impl WakerList {
pub fn new() -> Self {
Self { inner: Slab::new() }
}
pub fn add(&mut self, cx: &mut Context<'_>) -> usize {
self.inner.insert(Waiter::new(cx))
}
pub fn update(&mut self, key: usize, cx: &mut Context<'_>) {
self.inner
.get_mut(key)
.expect("task should never have invalid key")
.register(cx);
}
pub fn remove(&mut self, key: usize) {
self.inner.remove(key);
}
pub fn get_next(&mut self) -> Option<Waker> {
self.inner.iter_mut().find_map(|x| x.1.wake())
}
}
enum LockStatus {
/// was locked, you are now in the list
Joined(usize),
/// was locked, you were already in the list
Waiting,
/// was unlocked, lock is yours now
Unlocked,
}
struct SinkState<S: Sink<I>, I> {
sink: UnsafeCell<S>,
locked: AtomicBool,
waiters: Mutex<WakerList>,
phantom: PhantomData<I>,
}
unsafe impl<S: Sink<I> + Send, I> Send for SinkState<S, I> {}
unsafe impl<S: Sink<I>, I> Sync for SinkState<S, I> {}
impl<S: Sink<I>, I> SinkState<S, I> {
pub fn new(sink: S) -> Self {
Self {
sink: UnsafeCell::new(sink),
locked: AtomicBool::new(false),
waiters: Mutex::new(WakerList::new()),
phantom: PhantomData,
}
}
fn lock_waiters(&self) -> MutexGuard<'_, WakerList> {
self.waiters.lock().expect("waiters mutex was poisoned")
}
/// caller must make sure they are the ones locking the sink
#[expect(clippy::mut_from_ref)]
pub unsafe fn get_unpin(&self) -> &mut S {
// SAFETY: we are locked
unsafe { &mut *self.sink.get() }
}
/// caller must make sure they are the ones locking the sink
pub unsafe fn get(&self) -> Pin<&mut S> {
// SAFETY: we are locked
let inner = unsafe { self.get_unpin() };
// SAFETY: we never touch the UnsafeCell
unsafe { Pin::new_unchecked(inner) }
}
pub fn lock(&self, key: Option<usize>, cx: &mut Context<'_>) -> LockStatus {
let old_state = self.locked.swap(true, Ordering::AcqRel);
match (key, old_state) {
(Some(key), true) => {
self.lock_waiters().update(key, cx);
LockStatus::Waiting
}
(None, true) => {
let pos = self.lock_waiters().add(cx);
LockStatus::Joined(pos)
}
(_, false) => LockStatus::Unlocked,
}
}
pub fn unlock(&self) {
let mut locked = self.lock_waiters();
self.locked.store(false, Ordering::Release);
if let Some(next) = locked.get_next() {
drop(locked);
next.wake();
}
}
pub fn remove(&self, key: usize) {
self.lock_waiters().remove(key);
}
}
pub(crate) struct LockedSink<S: Sink<I>, I> {
inner: Arc<SinkState<S, I>>,
pos: Option<usize>,
locked: bool,
}
impl<S: Sink<I>, I> Clone for LockedSink<S, I> {
fn clone(&self) -> Self {
Self {
inner: self.inner.clone(),
pos: None,
locked: false,
}
}
}
impl<S: Sink<I>, I> Drop for LockedSink<S, I> {
fn drop(&mut self) {
self.unlock();
}
}
impl<S: Sink<I>, I> LockedSink<S, I> {
pub fn new(sink: S) -> Self {
Self {
inner: Arc::new(SinkState::new(sink)),
pos: None,
locked: false,
}
}
pub fn poll_lock(&mut self, cx: &mut Context<'_>) -> Poll<()> {
if self.locked {
Poll::Ready(())
} else {
match self.inner.lock(self.pos, cx) {
LockStatus::Joined(pos) => {
self.pos = Some(pos);
// make sure we haven't raced an unlock
if matches!(self.inner.lock(self.pos, cx), LockStatus::Unlocked) {
if let Some(pos) = self.pos.take() {
self.inner.remove(pos);
}
self.locked = true;
return Poll::Ready(());
}
Poll::Pending
}
LockStatus::Waiting => {
// make sure we haven't raced an unlock
if matches!(self.inner.lock(self.pos, cx), LockStatus::Unlocked) {
if let Some(pos) = self.pos.take() {
self.inner.remove(pos);
}
self.locked = true;
return Poll::Ready(());
}
Poll::Pending
}
LockStatus::Unlocked => {
if let Some(pos) = self.pos.take() {
self.inner.remove(pos);
}
self.locked = true;
Poll::Ready(())
}
}
}
}
pub async fn lock(&mut self) {
poll_fn(|cx| self.poll_lock(cx)).await;
}
pub fn unlock(&mut self) {
if self.locked {
self.locked = false;
self.inner.unlock();
}
}
pub fn get(&self) -> Pin<&mut S> {
debug_assert!(self.locked);
// SAFETY: we are locked
unsafe { self.inner.get() }
}
pub fn get_handle(&mut self) -> LockedSinkHandle<S, I> {
debug_assert!(self.locked);
self.locked = false;
LockedSinkHandle {
inner: self.inner.clone(),
}
}
pub fn get_guard(&mut self) -> LockedSinkGuard<S, I> {
debug_assert!(self.locked);
self.locked = false;
LockedSinkGuard {
inner: self.inner.clone(),
}
}
}
// always locked sink "guard" of lockedsink
pub(crate) struct LockedSinkHandle<S: Sink<I>, I> {
inner: Arc<SinkState<S, I>>,
}
impl<S: Sink<I>, I> Sink<I> for LockedSinkHandle<S, I> {
type Error = S::Error;
fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
unsafe { self.inner.get() }.poll_ready(cx)
}
fn start_send(self: Pin<&mut Self>, item: I) -> Result<(), Self::Error> {
unsafe { self.inner.get() }.start_send(item)
}
fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
unsafe { self.inner.get() }.poll_flush(cx)
}
fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
unsafe { self.inner.get() }.poll_close(cx)
}
}
impl<S: Sink<I>, I> Drop for LockedSinkHandle<S, I> {
fn drop(&mut self) {
self.inner.unlock();
}
}
// always locked "guard" of lockedsink
pub struct LockedSinkGuard<S: Sink<I>, I> {
inner: Arc<SinkState<S, I>>,
}
impl<S: Sink<I>, I> Deref for LockedSinkGuard<S, I> {
type Target = S;
fn deref(&self) -> &Self::Target {
unsafe { &*self.inner.get_unpin() }
}
}
impl<S: Sink<I> + Unpin, I> DerefMut for LockedSinkGuard<S, I> {
fn deref_mut(&mut self) -> &mut Self::Target {
unsafe { self.inner.get_unpin() }
}
}
impl<S: Sink<I>, I> LockedSinkGuard<S, I> {
pub fn deref_pin(&mut self) -> Pin<&mut S> {
unsafe { self.inner.get() }
}
}
impl<S: Sink<I>, I> Drop for LockedSinkGuard<S, I> {
fn drop(&mut self) {
self.inner.unlock();
}
}

313
wisp/src/mux/client.rs
View file

@ -1,159 +1,157 @@
use std::{
future::Future,
sync::{
atomic::{AtomicBool, Ordering},
Arc,
},
};
use flume as mpsc;
use futures::channel::oneshot;
use crate::{
extensions::{udp::UdpProtocolExtension, AnyProtocolExtension},
extensions::udp::UdpProtocolExtension,
mux::send_info_packet,
ws::{DynWebSocketRead, LockedWebSocketWrite, Payload, WebSocketRead, WebSocketWrite},
CloseReason, MuxProtocolExtensionStream, MuxStream, Packet, PacketType, Role, StreamType,
WispError,
packet::{ConnectPacket, ContinuePacket, MaybeInfoPacket, Packet, StreamType},
stream::MuxStream,
ws::{WebSocketRead, WebSocketReadExt, WebSocketWrite},
LockedWebSocketWrite, Role, WispError,
};
use super::{
get_supported_extensions,
inner::{MuxInner, WsEvent},
validate_continue_packet, Multiplexor, MuxResult, WispHandshakeResult, WispHandshakeResultKind,
WispV2Handshake,
get_supported_extensions, handle_handshake,
inner::{FlowControl, MultiplexorActor, StreamMap, WsEvent},
validate_continue_packet, Multiplexor, MultiplexorImpl, MuxResult, WispHandshakeResult,
WispHandshakeResultKind, WispV2Handshake,
};
async fn handshake<R: WebSocketRead + 'static, W: WebSocketWrite>(
rx: &mut R,
tx: &LockedWebSocketWrite<W>,
v2_info: Option<WispV2Handshake>,
) -> Result<(WispHandshakeResult, u32), WispError> {
if let Some(WispV2Handshake {
mut builders,
closure,
}) = v2_info
{
let packet =
Packet::maybe_parse_info(rx.wisp_read_frame(tx).await?, Role::Client, &mut builders)?;
pub(crate) struct ClientActor;
if let PacketType::Info(info) = packet.packet_type {
// v2 server
let buffer_size = validate_continue_packet(&rx.wisp_read_frame(tx).await?.try_into()?)?;
impl<W: WebSocketWrite> MultiplexorActor<W> for ClientActor {
fn handle_connect_packet(
&mut self,
_: crate::stream::MuxStream<W>,
_: crate::packet::ConnectPacket,
) -> Result<(), WispError> {
Err(WispError::InvalidPacketType(0x01))
}
(closure)(&mut builders).await?;
send_info_packet(tx, &mut builders).await?;
let mut supported_extensions = get_supported_extensions(info.extensions, &mut builders);
for extension in &mut supported_extensions {
extension
.handle_handshake(DynWebSocketRead::from_mut(rx), tx)
.await?;
fn handle_continue_packet(
&mut self,
id: u32,
pkt: ContinuePacket,
streams: &mut StreamMap,
) -> Result<(), WispError> {
if let Some(stream) = streams.get(&id) {
if stream.info.flow_status == FlowControl::EnabledTrackAmount {
stream.info.flow_set(pkt.buffer_remaining);
stream.info.flow_wake();
}
Ok((
WispHandshakeResult {
kind: WispHandshakeResultKind::V2 {
extensions: supported_extensions,
},
downgraded: false,
},
buffer_size,
))
} else {
// downgrade to v1
let buffer_size = validate_continue_packet(&packet)?;
Ok((
WispHandshakeResult {
kind: WispHandshakeResultKind::V1 { frame: None },
downgraded: true,
},
buffer_size,
))
}
} else {
// user asked for a v1 client
let buffer_size = validate_continue_packet(&rx.wisp_read_frame(tx).await?.try_into()?)?;
Ok((
WispHandshakeResult {
kind: WispHandshakeResultKind::V1 { frame: None },
downgraded: false,
},
buffer_size,
))
Ok(())
}
fn get_flow_control(ty: StreamType, flow_stream_types: &[u8]) -> FlowControl {
if flow_stream_types.contains(&ty.into()) {
FlowControl::EnabledTrackAmount
} else {
FlowControl::Disabled
}
}
}
/// Client side multiplexor.
pub struct ClientMux<W: WebSocketWrite + 'static> {
/// Whether the connection was downgraded to Wisp v1.
///
/// If this variable is true you must assume no extensions are supported.
pub downgraded: bool,
/// Extensions that are supported by both sides.
pub supported_extensions: Vec<AnyProtocolExtension>,
actor_tx: mpsc::Sender<WsEvent<W>>,
tx: LockedWebSocketWrite<W>,
actor_exited: Arc<AtomicBool>,
pub struct ClientImpl;
impl<W: WebSocketWrite> MultiplexorImpl<W> for ClientImpl {
type Actor = ClientActor;
async fn handshake<R: WebSocketRead>(
&mut self,
rx: &mut R,
tx: &mut LockedWebSocketWrite<W>,
v2: Option<WispV2Handshake>,
) -> Result<WispHandshakeResult, WispError> {
if let Some(WispV2Handshake {
mut builders,
closure,
}) = v2
{
let packet =
MaybeInfoPacket::decode(rx.next_erroring().await?, &mut builders, Role::Client)?;
match packet {
MaybeInfoPacket::Info(info) => {
// v2 server
let buffer_size =
validate_continue_packet(&Packet::decode(rx.next_erroring().await?)?)?;
(closure)(&mut builders).await?;
send_info_packet(tx, &mut builders, Role::Client).await?;
let mut supported_extensions =
get_supported_extensions(info.extensions, &mut builders);
handle_handshake(rx, tx, &mut supported_extensions).await?;
Ok(WispHandshakeResult {
kind: WispHandshakeResultKind::V2 {
extensions: supported_extensions,
},
downgraded: false,
buffer_size,
})
}
MaybeInfoPacket::Packet(packet) => {
// downgrade to v1
let buffer_size = validate_continue_packet(&packet)?;
Ok(WispHandshakeResult {
kind: WispHandshakeResultKind::V1 { packet: None },
downgraded: true,
buffer_size,
})
}
}
} else {
// user asked for a v1 client
let buffer_size =
validate_continue_packet(&Packet::decode(rx.next_erroring().await?)?)?;
Ok(WispHandshakeResult {
kind: WispHandshakeResultKind::V1 { packet: None },
downgraded: false,
buffer_size,
})
}
}
async fn handle_error(
&mut self,
err: WispError,
_: &mut LockedWebSocketWrite<W>,
) -> Result<WispError, WispError> {
Ok(err)
}
}
impl<W: WebSocketWrite + 'static> ClientMux<W> {
impl<W: WebSocketWrite> Multiplexor<ClientImpl, W> {
/// Create a new client side multiplexor.
///
/// If `wisp_v2` is None a Wisp v1 connection is created otherwise a Wisp v2 connection is created.
/// If `wisp_v2` is None a Wisp v1 connection is created, otherwise a Wisp v2 connection is created.
/// **It is not guaranteed that all extensions you specify are available.** You must manually check
/// if the extensions you need are available after the multiplexor has been created.
pub async fn create<R>(
mut rx: R,
#[expect(clippy::new_ret_no_self)]
pub async fn new<R: WebSocketRead>(
rx: R,
tx: W,
wisp_v2: Option<WispV2Handshake>,
) -> Result<
MuxResult<ClientMux<W>, impl Future<Output = Result<(), WispError>> + Send>,
WispError,
>
where
R: WebSocketRead + 'static,
{
let tx = LockedWebSocketWrite::new(tx);
let (handshake_result, buffer_size) = handshake(&mut rx, &tx, wisp_v2).await?;
let (extensions, extra_packet) = handshake_result.kind.into_parts();
let mux_inner = MuxInner::new_client(
rx,
extra_packet,
tx.clone(),
extensions.clone(),
buffer_size,
);
Ok(MuxResult(
Self {
actor_tx: mux_inner.actor_tx,
actor_exited: mux_inner.actor_exited,
tx,
downgraded: handshake_result.downgraded,
supported_extensions: extensions,
},
mux_inner.mux.into_future(),
))
) -> Result<MuxResult<ClientImpl, W>, WispError> {
Self::create(rx, tx, wisp_v2, ClientImpl, ClientActor).await
}
/// Create a new stream, multiplexed through Wisp.
pub async fn client_new_stream(
pub async fn new_stream(
&self,
stream_type: StreamType,
host: String,
port: u16,
) -> Result<MuxStream<W>, WispError> {
if self.actor_exited.load(Ordering::Acquire) {
if self.actor_tx.is_disconnected() {
return Err(WispError::MuxTaskEnded);
}
if stream_type == StreamType::Udp
&& !self
.supported_extensions
@ -164,74 +162,19 @@ impl<W: WebSocketWrite + 'static> ClientMux<W> {
UdpProtocolExtension::ID,
]));
}
let (tx, rx) = oneshot::channel();
self.actor_tx
.send_async(WsEvent::CreateStream(stream_type, host, port, tx))
.send_async(WsEvent::CreateStream(
ConnectPacket {
stream_type,
host,
port,
},
tx,
))
.await
.map_err(|_| WispError::MuxMessageFailedToSend)?;
rx.await.map_err(|_| WispError::MuxMessageFailedToRecv)?
}
/// Send a ping to the server.
pub async fn send_ping(&self, payload: Payload<'static>) -> Result<(), WispError> {
if self.actor_exited.load(Ordering::Acquire) {
return Err(WispError::MuxTaskEnded);
}
let (tx, rx) = oneshot::channel();
self.actor_tx
.send_async(WsEvent::SendPing(payload, tx))
.await
.map_err(|_| WispError::MuxMessageFailedToSend)?;
rx.await.map_err(|_| WispError::MuxMessageFailedToRecv)?
}
async fn close_internal(&self, reason: Option<CloseReason>) -> Result<(), WispError> {
if self.actor_exited.load(Ordering::Acquire) {
return Err(WispError::MuxTaskEnded);
}
self.actor_tx
.send_async(WsEvent::EndFut(reason))
.await
.map_err(|_| WispError::MuxMessageFailedToSend)
}
/// Close all streams.
///
/// Also terminates the multiplexor future.
pub async fn close(&self) -> Result<(), WispError> {
self.close_internal(None).await
}
/// Close all streams and send a close reason on stream ID 0.
///
/// Also terminates the multiplexor future.
pub async fn close_with_reason(&self, reason: CloseReason) -> Result<(), WispError> {
self.close_internal(Some(reason)).await
}
/// Get a protocol extension stream for sending packets with stream id 0.
pub fn get_protocol_extension_stream(&self) -> MuxProtocolExtensionStream<W> {
MuxProtocolExtensionStream {
stream_id: 0,
tx: self.tx.clone(),
is_closed: self.actor_exited.clone(),
}
}
}
impl<W: WebSocketWrite + 'static> Drop for ClientMux<W> {
fn drop(&mut self) {
let _ = self.actor_tx.send(WsEvent::EndFut(None));
}
}
impl<W: WebSocketWrite + 'static> Multiplexor for ClientMux<W> {
fn has_extension(&self, extension_id: u8) -> bool {
self.supported_extensions
.iter()
.any(|x| x.get_id() == extension_id)
}
async fn exit(&self, reason: CloseReason) -> Result<(), WispError> {
self.close_with_reason(reason).await
}
}

726
wisp/src/mux/inner.rs
View file

@ -1,493 +1,427 @@
use std::{collections::HashMap, sync::{
atomic::{AtomicBool, AtomicU32, Ordering},
Arc,
}};
use std::{
pin::pin,
sync::{
atomic::{AtomicU32, AtomicU8, Ordering},
Arc, Mutex,
},
task::Context,
};
use futures::{
channel::oneshot,
stream::{select, unfold},
SinkExt, StreamExt,
};
use rustc_hash::FxHashMap;
use crate::{
extensions::AnyProtocolExtension,
ws::{Frame, LockedWebSocketWrite, OpCode, Payload, WebSocketRead, WebSocketWrite},
AtomicCloseReason, ClosePacket, CloseReason, ConnectPacket, MuxStream, Packet, PacketType,
Role, StreamType, WispError,
locked_sink::Waiter,
packet::{
ClosePacket, CloseReason, ConnectPacket, ContinuePacket, MaybeExtensionPacket, Packet,
PacketType, StreamType,
},
stream::MuxStream,
ws::{Payload, WebSocketRead, WebSocketWrite},
LockedWebSocketWrite, WispError,
};
use bytes::BytesMut;
use event_listener::Event;
use flume as mpsc;
use futures::{channel::oneshot, select, stream::unfold, FutureExt, StreamExt};
use rustc_hash::FxHashMap;
pub(crate) enum WsEvent<W: WebSocketWrite + 'static> {
Close(Packet<'static>, oneshot::Sender<Result<(), WispError>>),
pub(crate) enum WsEvent<W: WebSocketWrite> {
Close(u32, ClosePacket, oneshot::Sender<Result<(), WispError>>),
CreateStream(
StreamType,
String,
u16,
ConnectPacket,
oneshot::Sender<Result<MuxStream<W>, WispError>>,
),
SendPing(Payload<'static>, oneshot::Sender<Result<(), WispError>>),
SendPong(Payload<'static>),
WispMessage(Option<Packet<'static>>, Option<Frame<'static>>),
WispMessage(Packet<'static>),
EndFut(Option<CloseReason>),
Noop,
}
struct MuxMapValue {
stream: mpsc::Sender<Payload<'static>>,
stream_type: StreamType,
pub(crate) type StreamMap = FxHashMap<u32, StreamMapValue>;
should_flow_control: bool,
flow_control: Arc<AtomicU32>,
flow_control_event: Arc<Event>,
is_closed: Arc<AtomicBool>,
close_reason: Arc<AtomicCloseReason>,
is_closed_event: Arc<Event>,
pub(crate) struct StreamMapValue {
pub info: Arc<StreamInfo>,
pub stream: flume::Sender<Payload>,
}
pub(crate) struct MuxInner<R: WebSocketRead + 'static, W: WebSocketWrite + 'static> {
// gets taken by the mux task
rx: Option<R>,
// gets taken by the mux task
maybe_downgrade_packet: Option<Packet<'static>>,
#[derive(Copy, Clone, Eq, PartialEq, Debug)]
pub(crate) enum FlowControl {
/// flow control completely disabled
Disabled,
/// flow control enabled
/// - incoming: do not send buffer updates and no buffer
/// - outgoing: track sent amount and wait
EnabledTrackAmount,
/// flow control enabled
/// - incoming: send buffer updates and force buffer
/// - outgoing: do not track sent amount and do not wait
EnabledSendMessages,
}
pub(crate) struct StreamInfo {
pub id: u32,
pub flow_status: FlowControl,
pub target_flow_control: u32,
flow_control: AtomicU32,
close_reason: AtomicU8,
flow_waker: Mutex<Waiter>,
}
impl StreamInfo {
pub fn new(id: u32, flow_status: FlowControl, buffer_size: u32) -> Self {
debug_assert_ne!(id, 0);
// 90%
#[expect(clippy::cast_possible_truncation)]
let target = ((u64::from(buffer_size) * 90) / 100) as u32;
Self {
id,
flow_status,
target_flow_control: target,
flow_control: AtomicU32::new(buffer_size),
flow_waker: Mutex::new(Waiter::Woken),
close_reason: AtomicU8::new(CloseReason::Unknown.into()),
}
}
pub fn flow_set(&self, amt: u32) {
self.flow_control.store(amt, Ordering::Relaxed);
}
pub fn flow_add(&self, amt: u32) -> u32 {
let new = self
.flow_control
.load(Ordering::Relaxed)
.saturating_add(amt);
self.flow_control.store(new, Ordering::Relaxed);
new
}
pub fn flow_sub(&self, amt: u32) -> u32 {
let new = self
.flow_control
.load(Ordering::Relaxed)
.saturating_sub(amt);
self.flow_control.store(new, Ordering::Relaxed);
new
}
pub fn flow_dec(&self) {
self.flow_sub(1);
}
pub fn flow_empty(&self) -> bool {
self.flow_control.load(Ordering::Relaxed) == 0
}
pub fn flow_register(&self, cx: &mut Context<'_>) {
self.flow_waker
.lock()
.expect("flow_waker was poisoned")
.register(cx);
}
pub fn flow_wake(&self) {
let mut waiter = self.flow_waker.lock().expect("flow_waker was poisoned");
if let Some(waker) = waiter.wake() {
drop(waiter);
waker.wake();
}
}
pub fn get_reason(&self) -> CloseReason {
self.close_reason.load(Ordering::Relaxed).into()
}
pub fn set_reason(&self, reason: CloseReason) {
self.close_reason.store(reason.into(), Ordering::Relaxed);
}
}
pub(crate) trait MultiplexorActor<W: WebSocketWrite>: Send {
fn handle_connect_packet(
&mut self,
stream: MuxStream<W>,
pkt: ConnectPacket,
) -> Result<(), WispError>;
fn handle_data_packet(
&mut self,
id: u32,
pkt: Payload,
streams: &mut StreamMap,
) -> Result<(), WispError> {
if let Some(stream) = streams.get(&id) {
let _ = stream.stream.try_send(pkt);
}
Ok(())
}
fn handle_continue_packet(
&mut self,
id: u32,
pkt: ContinuePacket,
streams: &mut StreamMap,
) -> Result<(), WispError>;
fn get_flow_control(ty: StreamType, flow_stream_types: &[u8]) -> FlowControl;
}
struct MuxStart<R: WebSocketRead, W: WebSocketWrite> {
rx: R,
downgrade: Option<Packet<'static>>,
extensions: Vec<AnyProtocolExtension>,
actor_rx: flume::Receiver<WsEvent<W>>,
}
pub(crate) struct MuxInner<R: WebSocketRead, W: WebSocketWrite, M: MultiplexorActor<W>> {
start: Option<MuxStart<R, W>>,
tx: LockedWebSocketWrite<W>,
// gets taken by the mux task
extensions: Option<Vec<AnyProtocolExtension>>,
tcp_extensions: Vec<u8>,
role: Role,
flow_stream_types: Box<[u8]>,
// gets taken by the mux task
actor_rx: Option<mpsc::Receiver<WsEvent<W>>>,
actor_tx: mpsc::Sender<WsEvent<W>>,
fut_exited: Arc<AtomicBool>,
stream_map: FxHashMap<u32, MuxMapValue>,
mux: M,
streams: StreamMap,
current_id: u32,
buffer_size: u32,
target_buffer_size: u32,
server_tx: mpsc::Sender<(ConnectPacket, MuxStream<W>)>,
actor_tx: flume::Sender<WsEvent<W>>,
}
pub(crate) struct MuxInnerResult<R: WebSocketRead + 'static, W: WebSocketWrite + 'static> {
pub mux: MuxInner<R, W>,
pub actor_exited: Arc<AtomicBool>,
pub actor_tx: mpsc::Sender<WsEvent<W>>,
pub(crate) struct MuxInnerResult<R: WebSocketRead, W: WebSocketWrite, M: MultiplexorActor<W>> {
pub mux: MuxInner<R, W, M>,
pub actor_tx: flume::Sender<WsEvent<W>>,
}
impl<R: WebSocketRead + 'static, W: WebSocketWrite + 'static> MuxInner<R, W> {
fn get_tcp_extensions(extensions: &[AnyProtocolExtension]) -> Vec<u8> {
extensions
impl<R: WebSocketRead, W: WebSocketWrite, M: MultiplexorActor<W>> MuxInner<R, W, M> {
#[expect(clippy::new_ret_no_self)]
pub fn new(
rx: R,
tx: LockedWebSocketWrite<W>,
mux: M,
downgrade: Option<Packet<'static>>,
extensions: Vec<AnyProtocolExtension>,
buffer_size: u32,
) -> MuxInnerResult<R, W, M> {
let (actor_tx, actor_rx) = flume::unbounded();
let flow_extensions = extensions
.iter()
.flat_map(|x| x.get_congestion_stream_types())
.copied()
.chain(std::iter::once(StreamType::Tcp.into()))
.collect()
}
#[expect(clippy::type_complexity)]
pub fn new_server(
rx: R,
maybe_downgrade_packet: Option<Packet<'static>>,
tx: LockedWebSocketWrite<W>,
extensions: Vec<AnyProtocolExtension>,
buffer_size: u32,
) -> (
MuxInnerResult<R, W>,
mpsc::Receiver<(ConnectPacket, MuxStream<W>)>,
) {
let (fut_tx, fut_rx) = mpsc::bounded::<WsEvent<W>>(256);
let (server_tx, server_rx) = mpsc::unbounded::<(ConnectPacket, MuxStream<W>)>();
let ret_fut_tx = fut_tx.clone();
let fut_exited = Arc::new(AtomicBool::new(false));
// 90% of the buffer size, not possible to overflow
#[expect(clippy::cast_possible_truncation)]
let target_buffer_size = ((u64::from(buffer_size) * 90) / 100) as u32;
(
MuxInnerResult {
mux: Self {
rx: Some(rx),
maybe_downgrade_packet,
tx,
actor_rx: Some(fut_rx),
actor_tx: fut_tx,
fut_exited: fut_exited.clone(),
tcp_extensions: Self::get_tcp_extensions(&extensions),
extensions: Some(extensions),
buffer_size,
target_buffer_size,
role: Role::Server,
stream_map: HashMap::default(),
server_tx,
},
actor_exited: fut_exited,
actor_tx: ret_fut_tx,
},
server_rx,
)
}
pub fn new_client(
rx: R,
maybe_downgrade_packet: Option<Packet<'static>>,
tx: LockedWebSocketWrite<W>,
extensions: Vec<AnyProtocolExtension>,
buffer_size: u32,
) -> MuxInnerResult<R, W> {
let (fut_tx, fut_rx) = mpsc::bounded::<WsEvent<W>>(256);
let (server_tx, _) = mpsc::unbounded::<(ConnectPacket, MuxStream<W>)>();
let ret_fut_tx = fut_tx.clone();
let fut_exited = Arc::new(AtomicBool::new(false));
.collect();
MuxInnerResult {
actor_tx: actor_tx.clone(),
mux: Self {
rx: Some(rx),
maybe_downgrade_packet,
start: Some(MuxStart {
rx,
downgrade,
extensions,
actor_rx,
}),
tx,
flow_stream_types: flow_extensions,
actor_rx: Some(fut_rx),
actor_tx: fut_tx,
fut_exited: fut_exited.clone(),
mux,
tcp_extensions: Self::get_tcp_extensions(&extensions),
extensions: Some(extensions),
streams: StreamMap::default(),
current_id: 0,
buffer_size,
target_buffer_size: 0,
role: Role::Client,
stream_map: HashMap::default(),
server_tx,
actor_tx,
},
actor_exited: fut_exited,
actor_tx: ret_fut_tx,
}
}
pub async fn into_future(mut self) -> Result<(), WispError> {
let ret = self.stream_loop().await;
let ret = self.entry().await;
self.fut_exited.store(true, Ordering::Release);
for stream in self.stream_map.values() {
Self::close_stream(stream, ClosePacket::new(CloseReason::Unknown));
for stream in self.streams.drain() {
Self::close_stream(
stream.1,
ClosePacket {
reason: CloseReason::Unknown,
},
);
}
self.stream_map.clear();
let _ = self.tx.close().await;
self.tx.lock().await;
let _ = self.tx.get().close().await;
self.tx.unlock();
ret
}
fn create_new_stream(
&mut self,
stream_id: u32,
stream_type: StreamType,
) -> (MuxMapValue, MuxStream<W>) {
let (ch_tx, ch_rx) = mpsc::bounded(if self.role == Role::Server {
self.buffer_size as usize
} else {
usize::MAX - 8
});
async fn entry(&mut self) -> Result<(), WispError> {
let MuxStart {
rx,
downgrade,
extensions,
actor_rx,
} = self.start.take().ok_or(WispError::MuxTaskStarted)?;
let should_flow_control = self.tcp_extensions.contains(&stream_type.into());
let flow_control_event: Arc<Event> = Event::new().into();
let flow_control: Arc<AtomicU32> = AtomicU32::new(self.buffer_size).into();
let is_closed: Arc<AtomicBool> = AtomicBool::new(false).into();
let close_reason: Arc<AtomicCloseReason> =
AtomicCloseReason::new(CloseReason::Unknown).into();
let is_closed_event: Arc<Event> = Event::new().into();
(
MuxMapValue {
stream: ch_tx,
stream_type,
should_flow_control,
flow_control: flow_control.clone(),
flow_control_event: flow_control_event.clone(),
is_closed: is_closed.clone(),
close_reason: close_reason.clone(),
is_closed_event: is_closed_event.clone(),
},
MuxStream::new(
stream_id,
self.role,
stream_type,
ch_rx,
self.actor_tx.clone(),
self.tx.clone(),
is_closed,
is_closed_event,
close_reason,
should_flow_control,
flow_control,
flow_control_event,
self.target_buffer_size,
),
)
}
fn close_stream(stream: &MuxMapValue, close_packet: ClosePacket) {
stream
.close_reason
.store(close_packet.reason, Ordering::Release);
stream.is_closed.store(true, Ordering::Release);
stream.is_closed_event.notify(usize::MAX);
stream.flow_control.store(u32::MAX, Ordering::Release);
stream.flow_control_event.notify(usize::MAX);
}
async fn process_wisp_message(
rx: &mut R,
tx: &LockedWebSocketWrite<W>,
extensions: &mut [AnyProtocolExtension],
msg: (Frame<'static>, Option<Frame<'static>>),
) -> Result<Option<WsEvent<W>>, WispError> {
let (mut frame, optional_frame) = msg;
if frame.opcode == OpCode::Close {
return Ok(None);
} else if frame.opcode == OpCode::Ping {
return Ok(Some(WsEvent::SendPong(frame.payload)));
} else if frame.opcode == OpCode::Pong {
return Ok(Some(WsEvent::Noop));
}
if let Some(ref extra_frame) = optional_frame {
if frame.payload[0] != PacketType::Data(Payload::Bytes(BytesMut::new())).as_u8() {
let mut payload = BytesMut::from(frame.payload);
payload.extend_from_slice(&extra_frame.payload);
frame.payload = Payload::Bytes(payload);
}
}
let packet = Packet::maybe_handle_extension(frame, extensions, rx, tx).await?;
Ok(Some(WsEvent::WispMessage(packet, optional_frame)))
}
async fn stream_loop(&mut self) -> Result<(), WispError> {
let mut next_free_stream_id: u32 = 1;
let rx = self.rx.take().ok_or(WispError::MuxTaskStarted)?;
let maybe_downgrade_packet = self.maybe_downgrade_packet.take();
let tx = self.tx.clone();
let fut_rx = self.actor_rx.take().ok_or(WispError::MuxTaskStarted)?;
let extensions = self.extensions.take().ok_or(WispError::MuxTaskStarted)?;
if let Some(downgrade_packet) = maybe_downgrade_packet {
if self.handle_packet(downgrade_packet, None).await? {
if let Some(packet) = downgrade {
if self.handle_packet(packet)? {
return Ok(());
}
}
let mut read_stream = Box::pin(unfold(
(rx, tx.clone(), extensions),
|(mut rx, tx, mut extensions)| async {
let ret = async {
let msg = rx.wisp_read_split(&tx).await?;
Self::process_wisp_message(&mut rx, &tx, &mut extensions, msg).await
let read_stream = pin!(unfold(
(rx, self.tx.clone(), extensions),
|(mut rx, mut tx, mut extensions)| async {
let ret: Result<Option<WsEvent<W>>, WispError> = async {
if let Some(msg) = rx.next().await {
match MaybeExtensionPacket::decode(msg?, &mut extensions, &mut rx, &mut tx)
.await?
{
MaybeExtensionPacket::Packet(x) => Ok(Some(WsEvent::WispMessage(x))),
MaybeExtensionPacket::ExtensionHandled => Ok(None),
}
} else {
Ok(None)
}
}
.await;
ret.transpose().map(|x| (x, (rx, tx, extensions)))
},
))
.fuse();
));
let mut recv_fut = fut_rx.recv_async().fuse();
while let Some(msg) = select! {
x = recv_fut => {
drop(recv_fut);
recv_fut = fut_rx.recv_async().fuse();
Ok(x.ok())
},
x = read_stream.next() => {
x.transpose()
}
}? {
match msg {
WsEvent::CreateStream(stream_type, host, port, channel) => {
let mut stream = select(read_stream, actor_rx.into_stream().map(Ok));
while let Some(msg) = stream.next().await {
match msg? {
WsEvent::CreateStream(connect, channel) => {
let ret: Result<MuxStream<W>, WispError> = async {
let stream_id = next_free_stream_id;
let next_stream_id = next_free_stream_id
.checked_add(1)
.ok_or(WispError::MaxStreamCountReached)?;
let (map_value, stream) = self.create_new_stream(stream_id, stream_type);
let (stream, stream_id) = self.create_stream(connect.stream_type)?;
self.tx.lock().await;
self.tx
.write_frame(
Packet::new_connect(stream_id, stream_type, port, host).into(),
.get()
.send(
Packet {
stream_id,
packet_type: PacketType::Connect(connect),
}
.encode(),
)
.await?;
self.stream_map.insert(stream_id, map_value);
next_free_stream_id = next_stream_id;
self.tx.unlock();
Ok(stream)
}
.await;
let _ = channel.send(ret);
}
WsEvent::Close(packet, channel) => {
if let Some(stream) = self.stream_map.remove(&packet.stream_id) {
if let PacketType::Close(close) = packet.packet_type {
Self::close_stream(&stream, close);
WsEvent::Close(id, close, channel) => {
if let Some(stream) = self.streams.remove(&id) {
Self::close_stream(stream, close);
let pkt = Packet {
stream_id: id,
packet_type: PacketType::Close(close),
}
let _ = channel.send(self.tx.write_frame(packet.into()).await);
.encode();
self.tx.lock().await;
let ret = self.tx.get().send(pkt).await;
self.tx.unlock();
let _ = channel.send(ret);
} else {
let _ = channel.send(Err(WispError::InvalidStreamId));
let _ = channel.send(Err(WispError::InvalidStreamId(id)));
}
}
WsEvent::SendPing(payload, channel) => {
let _ = channel.send(
self.tx
.write_frame(Frame::new(OpCode::Ping, payload, true))
.await,
);
}
WsEvent::SendPong(payload) => {
self.tx
.write_frame(Frame::new(OpCode::Pong, payload, true))
.await?;
}
WsEvent::EndFut(x) => {
if let Some(reason) = x {
self.tx.lock().await;
let _ = self
.tx
.write_frame(Packet::new_close(0, reason).into())
.get()
.send(Packet::new_close(0, reason).encode())
.await;
self.tx.unlock();
}
break;
}
WsEvent::WispMessage(packet, optional_frame) => {
if let Some(packet) = packet {
let should_break = self.handle_packet(packet, optional_frame).await?;
if should_break {
break;
}
WsEvent::WispMessage(packet) => {
let should_break = self.handle_packet(packet)?;
if should_break {
break;
}
}
WsEvent::Noop => {}
}
}
Ok(())
}
fn handle_close_packet(&mut self, stream_id: u32, inner_packet: ClosePacket) -> bool {
fn create_stream(&mut self, ty: StreamType) -> Result<(MuxStream<W>, u32), WispError> {
let id = self
.current_id
.checked_add(1)
.ok_or(WispError::MaxStreamCountReached)?;
self.current_id = id;
Ok((self.add_stream(id, ty), id))
}
fn add_stream(&mut self, id: u32, ty: StreamType) -> MuxStream<W> {
let flow = M::get_flow_control(ty, &self.flow_stream_types);
let (data_tx, data_rx) = if flow == FlowControl::EnabledSendMessages {
flume::bounded(self.buffer_size as usize)
} else {
flume::unbounded()
};
let info = Arc::new(StreamInfo::new(id, flow, self.buffer_size));
let val = StreamMapValue {
info: info.clone(),
stream: data_tx,
};
self.streams.insert(id, val);
MuxStream::new(data_rx, self.actor_tx.clone(), self.tx.clone(), info)
}
fn close_stream(stream: StreamMapValue, close: ClosePacket) {
drop(stream.stream);
stream.info.set_reason(close.reason);
}
fn handle_packet(&mut self, packet: Packet<'static>) -> Result<bool, WispError> {
use PacketType as P;
match packet.packet_type {
P::Connect(connect) => {
let stream = self.add_stream(packet.stream_id, connect.stream_type);
self.mux.handle_connect_packet(stream, connect)?;
Ok(false)
}
P::Data(data) => {
self.mux.handle_data_packet(
packet.stream_id,
data.into_owned(),
&mut self.streams,
)?;
Ok(false)
}
P::Continue(cont) => {
self.mux
.handle_continue_packet(packet.stream_id, cont, &mut self.streams)?;
Ok(false)
}
P::Close(close) => Ok(self.handle_close_packet(packet.stream_id, close)),
}
}
fn handle_close_packet(&mut self, stream_id: u32, close: ClosePacket) -> bool {
if stream_id == 0 {
return true;
}
if let Some(stream) = self.stream_map.remove(&stream_id) {
Self::close_stream(&stream, inner_packet);
if let Some(stream) = self.streams.remove(&stream_id) {
Self::close_stream(stream, close);
}
false
}
fn handle_data_packet(
&mut self,
stream_id: u32,
optional_frame: Option<Frame<'static>>,
data: Payload<'static>,
) -> bool {
let mut data = BytesMut::from(data);
if let Some(stream) = self.stream_map.get(&stream_id) {
if let Some(extra_frame) = optional_frame {
if data.is_empty() {
data = extra_frame.payload.into();
} else {
data.extend_from_slice(&extra_frame.payload);
}
}
let _ = stream.stream.try_send(Payload::Bytes(data));
if self.role == Role::Server && stream.should_flow_control {
stream.flow_control.store(
stream
.flow_control
.load(Ordering::Acquire)
.saturating_sub(1),
Ordering::Release,
);
}
}
false
}
async fn handle_packet(
&mut self,
packet: Packet<'static>,
optional_frame: Option<Frame<'static>>,
) -> Result<bool, WispError> {
use PacketType as P;
match packet.packet_type {
P::Data(data) => Ok(self.handle_data_packet(packet.stream_id, optional_frame, data)),
P::Close(inner_packet) => Ok(self.handle_close_packet(packet.stream_id, inner_packet)),
_ => match self.role {
Role::Server => self.server_handle_packet(packet, optional_frame).await,
Role::Client => self.client_handle_packet(&packet),
},
}
}
async fn server_handle_packet(
&mut self,
packet: Packet<'static>,
_optional_frame: Option<Frame<'static>>,
) -> Result<bool, WispError> {
use PacketType as P;
match packet.packet_type {
P::Connect(inner_packet) => {
let (map_value, stream) =
self.create_new_stream(packet.stream_id, inner_packet.stream_type);
self.server_tx
.send_async((inner_packet, stream))
.await
.map_err(|_| WispError::MuxMessageFailedToSend)?;
self.stream_map.insert(packet.stream_id, map_value);
Ok(false)
}
// Continue | Info => invalid packet type
// Data | Close => specialcased
_ => Err(WispError::InvalidPacketType),
}
}
fn client_handle_packet(&mut self, packet: &Packet<'static>) -> Result<bool, WispError> {
use PacketType as P;
match packet.packet_type {
P::Continue(inner_packet) => {
if let Some(stream) = self.stream_map.get(&packet.stream_id) {
if stream.stream_type == StreamType::Tcp {
stream
.flow_control
.store(inner_packet.buffer_remaining, Ordering::Release);
let _ = stream.flow_control_event.notify(u32::MAX);
}
}
Ok(false)
}
// Connect | Info => invalid packet type
// Data | Close => specialcased
_ => Err(WispError::InvalidPacketType),
}
}
}

257
wisp/src/mux/mod.rs
View file

@ -3,18 +3,26 @@ pub(crate) mod inner;
mod server;
use std::{future::Future, pin::Pin};
pub use client::ClientMux;
pub use server::ServerMux;
use futures::SinkExt;
use inner::{MultiplexorActor, MuxInner, WsEvent};
pub use client::ClientImpl;
pub use server::ServerImpl;
pub type ServerMux<W> = Multiplexor<ServerImpl<W>, W>;
pub type ClientMux<W> = Multiplexor<ClientImpl, W>;
use crate::{
extensions::{udp::UdpProtocolExtension, AnyProtocolExtension, AnyProtocolExtensionBuilder},
ws::{LockedWebSocketWrite, WebSocketWrite},
CloseReason, Packet, PacketType, Role, WispError,
packet::{CloseReason, InfoPacket, Packet, PacketType},
ws::{WebSocketRead, WebSocketWrite},
LockedWebSocketWrite, LockedWebSocketWriteGuard, Role, WispError, WISP_VERSION,
};
struct WispHandshakeResult {
kind: WispHandshakeResultKind,
downgraded: bool,
buffer_size: u32,
}
enum WispHandshakeResultKind {
@ -22,7 +30,7 @@ enum WispHandshakeResultKind {
extensions: Vec<AnyProtocolExtension>,
},
V1 {
frame: Option<Packet<'static>>,
packet: Option<Packet<'static>>,
},
}
@ -30,35 +38,56 @@ impl WispHandshakeResultKind {
pub fn into_parts(self) -> (Vec<AnyProtocolExtension>, Option<Packet<'static>>) {
match self {
Self::V2 { extensions } => (extensions, None),
Self::V1 { frame } => (vec![UdpProtocolExtension.into()], frame),
Self::V1 { packet } => (vec![UdpProtocolExtension.into()], packet),
}
}
}
async fn send_info_packet<W: WebSocketWrite>(
write: &LockedWebSocketWrite<W>,
builders: &mut [AnyProtocolExtensionBuilder],
async fn handle_handshake<R: WebSocketRead, W: WebSocketWrite>(
read: &mut R,
write: &mut LockedWebSocketWrite<W>,
extensions: &mut [AnyProtocolExtension],
) -> Result<(), WispError> {
write
.write_frame(
Packet::new_info(
builders
.iter_mut()
.map(|x| x.build_to_extension(Role::Server))
.collect::<Result<Vec<_>, _>>()?,
)
.into(),
)
.await
write.lock().await;
let mut handle = write.get_handle();
for extension in extensions {
extension.handle_handshake(read, &mut handle).await?;
}
drop(handle);
Ok(())
}
fn validate_continue_packet(packet: &Packet<'_>) -> Result<u32, WispError> {
async fn send_info_packet<W: WebSocketWrite>(
write: &mut LockedWebSocketWrite<W>,
builders: &mut [AnyProtocolExtensionBuilder],
role: Role,
) -> Result<(), WispError> {
let extensions = builders
.iter_mut()
.map(|x| x.build_to_extension(role))
.collect::<Result<Vec<_>, _>>()?;
let packet = InfoPacket {
version: WISP_VERSION,
extensions,
}
.encode();
write.lock().await;
let ret = write.get().send(packet).await;
write.unlock();
ret
}
fn validate_continue_packet(packet: &Packet) -> Result<u32, WispError> {
if packet.stream_id != 0 {
return Err(WispError::InvalidStreamId);
return Err(WispError::InvalidStreamId(packet.stream_id));
}
let PacketType::Continue(continue_packet) = packet.packet_type else {
return Err(WispError::InvalidPacketType);
return Err(WispError::InvalidPacketType(packet.packet_type.get_type()));
};
Ok(continue_packet.buffer_remaining)
@ -75,35 +104,185 @@ fn get_supported_extensions(
.collect()
}
trait Multiplexor {
fn has_extension(&self, extension_id: u8) -> bool;
async fn exit(&self, reason: CloseReason) -> Result<(), WispError>;
trait MultiplexorImpl<W: WebSocketWrite> {
type Actor: MultiplexorActor<W> + 'static;
async fn handshake<R: WebSocketRead>(
&mut self,
rx: &mut R,
tx: &mut LockedWebSocketWrite<W>,
v2: Option<WispV2Handshake>,
) -> Result<WispHandshakeResult, WispError>;
async fn handle_error(
&mut self,
err: WispError,
tx: &mut LockedWebSocketWrite<W>,
) -> Result<WispError, WispError>;
}
#[expect(private_bounds)]
pub struct Multiplexor<M: MultiplexorImpl<W>, W: WebSocketWrite> {
mux: M,
downgraded: bool,
supported_extensions: Vec<AnyProtocolExtension>,
actor_tx: flume::Sender<WsEvent<W>>,
tx: LockedWebSocketWrite<W>,
}
#[expect(private_bounds)]
impl<M: MultiplexorImpl<W>, W: WebSocketWrite> Multiplexor<M, W> {
async fn create<R>(
mut rx: R,
tx: W,
wisp_v2: Option<WispV2Handshake>,
mut muxer: M,
actor: M::Actor,
) -> Result<MuxResult<M, W>, WispError>
where
R: WebSocketRead,
{
let mut tx = LockedWebSocketWrite::new(tx);
let ret = async {
let handshake_result = muxer.handshake(&mut rx, &mut tx, wisp_v2).await?;
let (extensions, extra_packet) = handshake_result.kind.into_parts();
Ok((
MuxInner::new(
rx,
tx.clone(),
actor,
extra_packet,
extensions.clone(),
handshake_result.buffer_size,
),
handshake_result.downgraded,
extensions,
))
}
.await;
match ret {
Ok((mux_result, downgraded, extensions)) => Ok(MuxResult(
Self {
mux: muxer,
downgraded,
supported_extensions: extensions,
actor_tx: mux_result.actor_tx,
tx,
},
Box::pin(mux_result.mux.into_future()),
)),
Err(x) => Err(muxer.handle_error(x, &mut tx).await?),
}
}
/// Whether the connection was downgraded to Wisp v1.
pub fn was_downgraded(&self) -> bool {
self.downgraded
}
/// Get a shared reference to the extensions that are supported by both sides.
pub fn get_extensions(&self) -> &[AnyProtocolExtension] {
&self.supported_extensions
}
/// Get a mutable reference to the extensions that are supported by both sides.
pub fn get_extensions_mut(&mut self) -> &mut [AnyProtocolExtension] {
&mut self.supported_extensions
}
/// Get a `Vec` of all extension IDs that are supported by both sides.
pub fn get_extension_ids(&self) -> Vec<u8> {
self.supported_extensions
.iter()
.map(|x| x.get_id())
.collect()
}
/// Get a locked guard to the write half of the websocket.
pub async fn lock_ws(&self) -> Result<LockedWebSocketWriteGuard<W>, WispError> {
if self.actor_tx.is_disconnected() {
Err(WispError::WsImplSocketClosed)
} else {
let mut cloned = self.tx.clone();
cloned.lock().await;
Ok(cloned.get_guard())
}
}
async fn close_internal(&self, reason: Option<CloseReason>) -> Result<(), WispError> {
self.actor_tx
.send_async(WsEvent::EndFut(reason))
.await
.map_err(|_| WispError::MuxMessageFailedToSend)
}
/// Close all streams.
///
/// Also terminates the multiplexor future.
pub async fn close(&self) -> Result<(), WispError> {
self.close_internal(None).await
}
/// Close all streams and send a close reason on stream ID 0.
///
/// Also terminates the multiplexor future.
pub async fn close_with_reason(&self, reason: CloseReason) -> Result<(), WispError> {
self.close_internal(Some(reason)).await
}
/* TODO
/// Get a protocol extension stream for sending packets with stream id 0.
pub fn get_protocol_extension_stream(&self) -> MuxProtocolExtensionStream<W> {
MuxProtocolExtensionStream {
stream_id: 0,
tx: self.tx.clone(),
is_closed: self.actor_exited.clone(),
}
}
*/
}
pub type MultiplexorActorFuture = Pin<Box<dyn Future<Output = Result<(), WispError>> + Send>>;
/// Result of creating a multiplexor. Helps require protocol extensions.
#[expect(private_bounds)]
pub struct MuxResult<M, F>(M, F)
pub struct MuxResult<M, W>(Multiplexor<M, W>, MultiplexorActorFuture)
where
M: Multiplexor,
F: Future<Output = Result<(), WispError>> + Send;
M: MultiplexorImpl<W>,
W: WebSocketWrite;
#[expect(private_bounds)]
impl<M, F> MuxResult<M, F>
impl<M, W> MuxResult<M, W>
where
M: Multiplexor,
F: Future<Output = Result<(), WispError>> + Send,
M: MultiplexorImpl<W>,
W: WebSocketWrite,
{
/// Require no protocol extensions.
pub fn with_no_required_extensions(self) -> (M, F) {
pub fn with_no_required_extensions(self) -> (Multiplexor<M, W>, MultiplexorActorFuture) {
(self.0, self.1)
}
/// Require protocol extensions by their ID. Will close the multiplexor connection if
/// extensions are not supported.
pub async fn with_required_extensions(self, extensions: &[u8]) -> Result<(M, F), WispError> {
pub async fn with_required_extensions(
self,
extensions: &[u8],
) -> Result<(Multiplexor<M, W>, MultiplexorActorFuture), WispError> {
let mut unsupported_extensions = Vec::new();
let supported_extensions = self.0.get_extensions();
for extension in extensions {
if !self.0.has_extension(*extension) {
if !supported_extensions
.iter()
.any(|x| x.get_id() == *extension)
{
unsupported_extensions.push(*extension);
}
}
@ -111,14 +290,18 @@ where
if unsupported_extensions.is_empty() {
Ok((self.0, self.1))
} else {
self.0.exit(CloseReason::ExtensionsIncompatible).await?;
self.0
.close_with_reason(CloseReason::ExtensionsIncompatible)
.await?;
self.1.await?;
Err(WispError::ExtensionsNotSupported(unsupported_extensions))
}
}
/// Shorthand for `with_required_extensions(&[UdpProtocolExtension::ID])`
pub async fn with_udp_extension_required(self) -> Result<(M, F), WispError> {
pub async fn with_udp_extension_required(
self,
) -> Result<(Multiplexor<M, W>, MultiplexorActorFuture), WispError> {
self.with_required_extensions(&[UdpProtocolExtension::ID])
.await
}

385
wisp/src/mux/server.rs
View file

@ -1,241 +1,196 @@
use std::{
future::Future,
sync::{
atomic::{AtomicBool, Ordering},
Arc,
},
};
use flume as mpsc;
use futures::channel::oneshot;
use futures::SinkExt;
use crate::{
extensions::AnyProtocolExtension,
ws::{DynWebSocketRead, LockedWebSocketWrite, Payload, WebSocketRead, WebSocketWrite},
CloseReason, ConnectPacket, MuxProtocolExtensionStream, MuxStream, Packet, PacketType, Role,
WispError,
locked_sink::LockedWebSocketWrite,
packet::{CloseReason, ConnectPacket, MaybeInfoPacket, Packet, StreamType},
stream::MuxStream,
ws::{Payload, WebSocketRead, WebSocketReadExt, WebSocketWrite},
Role, WispError,
};
use super::{
get_supported_extensions,
inner::{MuxInner, WsEvent},
send_info_packet, Multiplexor, MuxResult, WispHandshakeResult, WispHandshakeResultKind,
WispV2Handshake,
get_supported_extensions, handle_handshake,
inner::{FlowControl, MultiplexorActor, StreamMap},
send_info_packet, Multiplexor, MultiplexorImpl, MuxResult, WispHandshakeResult,
WispHandshakeResultKind, WispV2Handshake,
};
async fn handshake<R: WebSocketRead + 'static, W: WebSocketWrite>(
rx: &mut R,
tx: &LockedWebSocketWrite<W>,
buffer_size: u32,
v2_info: Option<WispV2Handshake>,
) -> Result<WispHandshakeResult, WispError> {
if let Some(WispV2Handshake {
mut builders,
closure,
}) = v2_info
{
send_info_packet(tx, &mut builders).await?;
tx.write_frame(Packet::new_continue(0, buffer_size).into())
.await?;
(closure)(&mut builders).await?;
let packet =
Packet::maybe_parse_info(rx.wisp_read_frame(tx).await?, Role::Server, &mut builders)?;
if let PacketType::Info(info) = packet.packet_type {
let mut supported_extensions = get_supported_extensions(info.extensions, &mut builders);
for extension in &mut supported_extensions {
extension
.handle_handshake(DynWebSocketRead::from_mut(rx), tx)
.await?;
}
// v2 client
Ok(WispHandshakeResult {
kind: WispHandshakeResultKind::V2 {
extensions: supported_extensions,
},
downgraded: false,
})
} else {
// downgrade to v1
Ok(WispHandshakeResult {
kind: WispHandshakeResultKind::V1 {
frame: Some(packet),
},
downgraded: true,
})
}
} else {
// user asked for v1 server
tx.write_frame(Packet::new_continue(0, buffer_size).into())
.await?;
Ok(WispHandshakeResult {
kind: WispHandshakeResultKind::V1 { frame: None },
downgraded: false,
})
}
pub(crate) struct ServerActor<W: WebSocketWrite> {
stream_tx: flume::Sender<(ConnectPacket, MuxStream<W>)>,
}
/// Server-side multiplexor.
pub struct ServerMux<W: WebSocketWrite + 'static> {
/// Whether the connection was downgraded to Wisp v1.
///
/// If this variable is true you must assume no extensions are supported.
pub downgraded: bool,
/// Extensions that are supported by both sides.
pub supported_extensions: Vec<AnyProtocolExtension>,
actor_tx: mpsc::Sender<WsEvent<W>>,
muxstream_recv: mpsc::Receiver<(ConnectPacket, MuxStream<W>)>,
tx: LockedWebSocketWrite<W>,
actor_exited: Arc<AtomicBool>,
}
impl<W: WebSocketWrite + 'static> ServerMux<W> {
/// Create a new server-side multiplexor.
///
/// If `wisp_v2` is None a Wisp v1 connection is created otherwise a Wisp v2 connection is created.
/// **It is not guaranteed that all extensions you specify are available.** You must manually check
/// if the extensions you need are available after the multiplexor has been created.
pub async fn create<R>(
mut rx: R,
tx: W,
buffer_size: u32,
wisp_v2: Option<WispV2Handshake>,
) -> Result<
MuxResult<ServerMux<W>, impl Future<Output = Result<(), WispError>> + Send>,
WispError,
>
where
R: WebSocketRead + Send + 'static,
{
let tx = LockedWebSocketWrite::new(tx);
let ret_tx = tx.clone();
let ret = async {
let handshake_result = handshake(&mut rx, &tx, buffer_size, wisp_v2).await?;
let (extensions, extra_packet) = handshake_result.kind.into_parts();
let (mux_result, muxstream_recv) = MuxInner::new_server(
rx,
extra_packet,
tx.clone(),
extensions.clone(),
buffer_size,
);
Ok(MuxResult(
Self {
actor_tx: mux_result.actor_tx,
actor_exited: mux_result.actor_exited,
muxstream_recv,
tx,
downgraded: handshake_result.downgraded,
supported_extensions: extensions,
},
mux_result.mux.into_future(),
))
}
.await;
match ret {
Ok(x) => Ok(x),
Err(x) => match x {
WispError::PasswordExtensionCredsInvalid => {
ret_tx
.write_frame(
Packet::new_close(0, CloseReason::ExtensionsPasswordAuthFailed).into(),
)
.await?;
ret_tx.close().await?;
Err(x)
}
WispError::CertAuthExtensionSigInvalid => {
ret_tx
.write_frame(
Packet::new_close(0, CloseReason::ExtensionsCertAuthFailed).into(),
)
.await?;
ret_tx.close().await?;
Err(x)
}
x => Err(x),
},
}
}
/// Wait for a stream to be created.
pub async fn server_new_stream(&self) -> Option<(ConnectPacket, MuxStream<W>)> {
if self.actor_exited.load(Ordering::Acquire) {
return None;
}
self.muxstream_recv.recv_async().await.ok()
}
/// Send a ping to the client.
pub async fn send_ping(&self, payload: Payload<'static>) -> Result<(), WispError> {
if self.actor_exited.load(Ordering::Acquire) {
return Err(WispError::MuxTaskEnded);
}
let (tx, rx) = oneshot::channel();
self.actor_tx
.send_async(WsEvent::SendPing(payload, tx))
.await
.map_err(|_| WispError::MuxMessageFailedToSend)?;
rx.await.map_err(|_| WispError::MuxMessageFailedToRecv)?
}
async fn close_internal(&self, reason: Option<CloseReason>) -> Result<(), WispError> {
if self.actor_exited.load(Ordering::Acquire) {
return Err(WispError::MuxTaskEnded);
}
self.actor_tx
.send_async(WsEvent::EndFut(reason))
.await
impl<W: WebSocketWrite> MultiplexorActor<W> for ServerActor<W> {
fn handle_connect_packet(
&mut self,
stream: MuxStream<W>,
pkt: ConnectPacket,
) -> Result<(), WispError> {
self.stream_tx
.send((pkt, stream))
.map_err(|_| WispError::MuxMessageFailedToSend)
}
/// Close all streams.
///
/// Also terminates the multiplexor future.
pub async fn close(&self) -> Result<(), WispError> {
self.close_internal(None).await
fn handle_data_packet(
&mut self,
id: u32,
pkt: Payload,
streams: &mut StreamMap,
) -> Result<(), WispError> {
if let Some(stream) = streams.get(&id) {
if stream.stream.try_send(pkt).is_ok() {
stream.info.flow_dec();
}
}
Ok(())
}
/// Close all streams and send a close reason on stream ID 0.
///
/// Also terminates the multiplexor future.
pub async fn close_with_reason(&self, reason: CloseReason) -> Result<(), WispError> {
self.close_internal(Some(reason)).await
fn handle_continue_packet(
&mut self,
_: u32,
_: crate::packet::ContinuePacket,
_: &mut StreamMap,
) -> Result<(), WispError> {
Err(WispError::InvalidPacketType(0x03))
}
/// Get a protocol extension stream for sending packets with stream id 0.
pub fn get_protocol_extension_stream(&self) -> MuxProtocolExtensionStream<W> {
MuxProtocolExtensionStream {
stream_id: 0,
tx: self.tx.clone(),
is_closed: self.actor_exited.clone(),
fn get_flow_control(ty: StreamType, flow_stream_types: &[u8]) -> FlowControl {
if flow_stream_types.contains(&ty.into()) {
FlowControl::EnabledSendMessages
} else {
FlowControl::Disabled
}
}
}
impl<W: WebSocketWrite + 'static> Drop for ServerMux<W> {
fn drop(&mut self) {
let _ = self.actor_tx.send(WsEvent::EndFut(None));
pub struct ServerImpl<W: WebSocketWrite> {
buffer_size: u32,
stream_rx: flume::Receiver<(ConnectPacket, MuxStream<W>)>,
}
impl<W: WebSocketWrite> MultiplexorImpl<W> for ServerImpl<W> {
type Actor = ServerActor<W>;
async fn handshake<R: WebSocketRead>(
&mut self,
rx: &mut R,
tx: &mut LockedWebSocketWrite<W>,
v2: Option<WispV2Handshake>,
) -> Result<WispHandshakeResult, WispError> {
if let Some(WispV2Handshake {
mut builders,
closure,
}) = v2
{
send_info_packet(tx, &mut builders, Role::Server).await?;
tx.lock().await;
tx.get()
.send(Packet::new_continue(0, self.buffer_size).encode())
.await?;
tx.unlock();
(closure)(&mut builders).await?;
let packet =
MaybeInfoPacket::decode(rx.next_erroring().await?, &mut builders, Role::Server)?;
match packet {
MaybeInfoPacket::Info(info) => {
let mut supported_extensions =
get_supported_extensions(info.extensions, &mut builders);
handle_handshake(rx, tx, &mut supported_extensions).await?;
// v2 client
Ok(WispHandshakeResult {
kind: WispHandshakeResultKind::V2 {
extensions: supported_extensions,
},
downgraded: false,
buffer_size: self.buffer_size,
})
}
MaybeInfoPacket::Packet(packet) => {
// downgrade to v1
Ok(WispHandshakeResult {
kind: WispHandshakeResultKind::V1 {
packet: Some(packet),
},
downgraded: true,
buffer_size: self.buffer_size,
})
}
}
} else {
// user asked for v1 server
tx.lock().await;
tx.get()
.send(Packet::new_continue(0, self.buffer_size).encode())
.await?;
tx.unlock();
Ok(WispHandshakeResult {
kind: WispHandshakeResultKind::V1 { packet: None },
downgraded: false,
buffer_size: self.buffer_size,
})
}
}
async fn handle_error(
&mut self,
err: WispError,
tx: &mut LockedWebSocketWrite<W>,
) -> Result<WispError, WispError> {
match err {
WispError::PasswordExtensionCredsInvalid => {
tx.lock().await;
tx.get()
.send(Packet::new_close(0, CloseReason::ExtensionsPasswordAuthFailed).encode())
.await?;
tx.get().close().await?;
tx.unlock();
Ok(err)
}
WispError::CertAuthExtensionSigInvalid => {
tx.lock().await;
tx.get()
.send(Packet::new_close(0, CloseReason::ExtensionsCertAuthFailed).encode())
.await?;
tx.get().close().await?;
tx.unlock();
Ok(err)
}
x => Ok(x),
}
}
}
impl<W: WebSocketWrite + 'static> Multiplexor for ServerMux<W> {
fn has_extension(&self, extension_id: u8) -> bool {
self.supported_extensions
.iter()
.any(|x| x.get_id() == extension_id)
impl<W: WebSocketWrite> Multiplexor<ServerImpl<W>, W> {
/// Create a new server-side multiplexor.
///
/// If `wisp_v2` is None a Wisp v1 connection is created, otherwise a Wisp v2 connection is created.
/// **It is not guaranteed that all extensions you specify are available.** You must manually check
/// if the extensions you need are available after the multiplexor has been created.
#[expect(clippy::new_ret_no_self)]
pub async fn new<R: WebSocketRead>(
rx: R,
tx: W,
buffer_size: u32,
wisp_v2: Option<WispV2Handshake>,
) -> Result<MuxResult<ServerImpl<W>, W>, WispError> {
let (stream_tx, stream_rx) = flume::unbounded();
let mux = ServerImpl {
buffer_size,
stream_rx,
};
let actor = ServerActor { stream_tx };
Self::create(rx, tx, wisp_v2, mux, actor).await
}
async fn exit(&self, reason: CloseReason) -> Result<(), WispError> {
self.close_with_reason(reason).await
/// Wait for a stream to be created.
pub async fn wait_for_stream(&self) -> Option<(ConnectPacket, MuxStream<W>)> {
self.mux.stream_rx.recv_async().await.ok()
}
}

886
wisp/src/packet.rs
View file

File diff suppressed because it is too large Load diff

460
wisp/src/stream/compat.rs
View file

@ -1,338 +1,240 @@
use std::{
io,
pin::Pin,
sync::{
atomic::{AtomicBool, Ordering},
Arc,
},
task::{Context, Poll},
sync::Arc,
task::{ready, Context, Poll},
};
use bytes::BytesMut;
use futures::{
ready, stream::IntoAsyncRead, task::noop_waker_ref, AsyncBufRead, AsyncRead, AsyncWrite, Sink,
Stream, TryStreamExt,
channel::oneshot, stream::IntoAsyncRead, AsyncBufRead, AsyncRead, AsyncWrite, FutureExt,
SinkExt, Stream, StreamExt, TryStreamExt,
};
use pin_project_lite::pin_project;
use pin_project::pin_project;
use crate::{ws::Payload, AtomicCloseReason, CloseReason, WispError};
use crate::{
locked_sink::LockedWebSocketWrite,
packet::{ClosePacket, CloseReason, Packet},
ws::{Payload, WebSocketWrite},
WispError,
};
pin_project! {
/// Multiplexor stream that implements futures `Stream + Sink`.
pub struct MuxStreamIo {
#[pin]
pub(crate) rx: MuxStreamIoStream,
#[pin]
pub(crate) tx: MuxStreamIoSink,
use super::{MuxStream, MuxStreamRead, MuxStreamWrite, StreamInfo, WsEvent};
struct MapToIo<W: WebSocketWrite>(MuxStreamRead<W>);
impl<W: WebSocketWrite> Stream for MapToIo<W> {
type Item = Result<Payload, std::io::Error>;
fn poll_next(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Option<Self::Item>> {
self.0.poll_next_unpin(cx).map_err(std::io::Error::other)
}
}
impl MuxStreamIo {
/// Turn the stream into one that implements futures `AsyncRead + AsyncBufRead + AsyncWrite`.
pub fn into_asyncrw(self) -> MuxStreamAsyncRW {
MuxStreamAsyncRW {
rx: self.rx.into_asyncread(),
tx: self.tx.into_asyncwrite(),
}
}
/// Get the stream's close reason, if it was closed.
pub fn get_close_reason(&self) -> Option<CloseReason> {
self.rx.get_close_reason()
}
/// Split the stream into read and write parts, consuming it.
pub fn into_split(self) -> (MuxStreamIoStream, MuxStreamIoSink) {
(self.rx, self.tx)
}
// TODO: don't use `futures` for this so get_close_reason etc can be implemented
#[pin_project]
pub struct MuxStreamAsyncRead<W: WebSocketWrite> {
#[pin]
inner: IntoAsyncRead<MapToIo<W>>,
}
impl Stream for MuxStreamIo {
type Item = Result<Payload<'static>, std::io::Error>;
fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Option<Self::Item>> {
self.project().rx.poll_next(cx)
}
}
impl Sink<BytesMut> for MuxStreamIo {
type Error = std::io::Error;
fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
self.project().tx.poll_ready(cx)
}
fn start_send(self: Pin<&mut Self>, item: BytesMut) -> Result<(), Self::Error> {
self.project().tx.start_send(item)
}
fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
self.project().tx.poll_flush(cx)
}
fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
self.project().tx.poll_close(cx)
}
}
pin_project! {
/// Read side of a multiplexor stream that implements futures `Stream`.
pub struct MuxStreamIoStream {
#[pin]
pub(crate) rx: Pin<Box<dyn Stream<Item = Result<Payload<'static>, WispError>> + Send>>,
pub(crate) is_closed: Arc<AtomicBool>,
pub(crate) close_reason: Arc<AtomicCloseReason>,
}
}
impl MuxStreamIoStream {
/// Turn the stream into one that implements futures `AsyncRead + AsyncBufRead`.
pub fn into_asyncread(self) -> MuxStreamAsyncRead {
MuxStreamAsyncRead::new(self)
}
/// Get the stream's close reason, if it was closed.
pub fn get_close_reason(&self) -> Option<CloseReason> {
if self.is_closed.load(Ordering::Acquire) {
Some(self.close_reason.load(Ordering::Acquire))
} else {
None
impl<W: WebSocketWrite> MuxStreamAsyncRead<W> {
pub(crate) fn new(inner: MuxStreamRead<W>) -> Self {
Self {
inner: MapToIo(inner).into_async_read(),
}
}
}
impl Stream for MuxStreamIoStream {
type Item = Result<Payload<'static>, std::io::Error>;
fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Option<Self::Item>> {
self.project()
.rx
.poll_next(cx)
.map_err(std::io::Error::other)
}
}
pin_project! {
/// Write side of a multiplexor stream that implements futures `Sink`.
pub struct MuxStreamIoSink {
#[pin]
pub(crate) tx: Pin<Box<dyn Sink<Payload<'static>, Error = WispError> + Send>>,
pub(crate) is_closed: Arc<AtomicBool>,
pub(crate) close_reason: Arc<AtomicCloseReason>,
}
}
impl MuxStreamIoSink {
/// Turn the sink into one that implements futures `AsyncWrite`.
pub fn into_asyncwrite(self) -> MuxStreamAsyncWrite {
MuxStreamAsyncWrite::new(self)
}
/// Get the stream's close reason, if it was closed.
pub fn get_close_reason(&self) -> Option<CloseReason> {
if self.is_closed.load(Ordering::Acquire) {
Some(self.close_reason.load(Ordering::Acquire))
} else {
None
}
}
}
impl Sink<BytesMut> for MuxStreamIoSink {
type Error = std::io::Error;
fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
self.project()
.tx
.poll_ready(cx)
.map_err(std::io::Error::other)
}
fn start_send(self: Pin<&mut Self>, item: BytesMut) -> Result<(), Self::Error> {
self.project()
.tx
.start_send(Payload::Bytes(item))
.map_err(std::io::Error::other)
}
fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
self.project()
.tx
.poll_flush(cx)
.map_err(std::io::Error::other)
}
fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
self.project()
.tx
.poll_close(cx)
.map_err(std::io::Error::other)
}
}
pin_project! {
/// Multiplexor stream that implements futures `AsyncRead + AsyncBufRead + AsyncWrite`.
pub struct MuxStreamAsyncRW {
#[pin]
rx: MuxStreamAsyncRead,
#[pin]
tx: MuxStreamAsyncWrite,
}
}
impl MuxStreamAsyncRW {
/// Get the stream's close reason, if it was closed.
pub fn get_close_reason(&self) -> Option<CloseReason> {
self.rx.get_close_reason()
}
/// Split the stream into read and write parts, consuming it.
pub fn into_split(self) -> (MuxStreamAsyncRead, MuxStreamAsyncWrite) {
(self.rx, self.tx)
}
}
impl AsyncRead for MuxStreamAsyncRW {
impl<W: WebSocketWrite> AsyncRead for MuxStreamAsyncRead<W> {
fn poll_read(
self: Pin<&mut Self>,
cx: &mut Context<'_>,
buf: &mut [u8],
) -> Poll<std::io::Result<usize>> {
self.project().rx.poll_read(cx, buf)
) -> Poll<io::Result<usize>> {
self.project().inner.poll_read(cx, buf)
}
fn poll_read_vectored(
self: Pin<&mut Self>,
cx: &mut Context<'_>,
bufs: &mut [std::io::IoSliceMut<'_>],
) -> Poll<std::io::Result<usize>> {
self.project().rx.poll_read_vectored(cx, bufs)
bufs: &mut [io::IoSliceMut<'_>],
) -> Poll<io::Result<usize>> {
self.project().inner.poll_read_vectored(cx, bufs)
}
}
impl AsyncBufRead for MuxStreamAsyncRW {
fn poll_fill_buf(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<std::io::Result<&[u8]>> {
self.project().rx.poll_fill_buf(cx)
impl<W: WebSocketWrite> AsyncBufRead for MuxStreamAsyncRead<W> {
fn poll_fill_buf(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<io::Result<&[u8]>> {
self.project().inner.poll_fill_buf(cx)
}
fn consume(self: Pin<&mut Self>, amt: usize) {
self.project().rx.consume(amt);
self.project().inner.consume(amt);
}
}
impl AsyncWrite for MuxStreamAsyncRW {
fn poll_write(
self: Pin<&mut Self>,
cx: &mut Context<'_>,
buf: &[u8],
) -> Poll<std::io::Result<usize>> {
self.project().tx.poll_write(cx, buf)
}
pub struct MuxStreamAsyncWrite<W: WebSocketWrite> {
inner: flume::r#async::SendSink<'static, WsEvent<W>>,
write: LockedWebSocketWrite<W>,
info: Arc<StreamInfo>,
fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<std::io::Result<()>> {
self.project().tx.poll_flush(cx)
}
fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<std::io::Result<()>> {
self.project().tx.poll_close(cx)
}
oneshot: Option<oneshot::Receiver<Result<(), WispError>>>,
}
pin_project! {
/// Read side of a multiplexor stream that implements futures `AsyncRead + AsyncBufRead`.
pub struct MuxStreamAsyncRead {
#[pin]
rx: IntoAsyncRead<MuxStreamIoStream>,
is_closed: Arc<AtomicBool>,
close_reason: Arc<AtomicCloseReason>,
}
}
impl MuxStreamAsyncRead {
pub(crate) fn new(stream: MuxStreamIoStream) -> Self {
impl<W: WebSocketWrite> MuxStreamAsyncWrite<W> {
pub(crate) fn new(inner: MuxStreamWrite<W>) -> Self {
Self {
is_closed: stream.is_closed.clone(),
close_reason: stream.close_reason.clone(),
rx: stream.into_async_read(),
inner: inner.inner,
write: inner.write,
info: inner.info,
oneshot: None,
}
}
/// Get the stream's close reason, if it was closed.
pub fn get_close_reason(&self) -> Option<CloseReason> {
if self.is_closed.load(Ordering::Acquire) {
Some(self.close_reason.load(Ordering::Acquire))
} else {
None
}
self.inner.is_disconnected().then(|| self.info.get_reason())
}
}
impl AsyncRead for MuxStreamAsyncRead {
fn poll_read(
self: Pin<&mut Self>,
cx: &mut Context<'_>,
buf: &mut [u8],
) -> Poll<std::io::Result<usize>> {
self.project().rx.poll_read(cx, buf)
}
}
impl AsyncBufRead for MuxStreamAsyncRead {
fn poll_fill_buf(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<std::io::Result<&[u8]>> {
self.project().rx.poll_fill_buf(cx)
}
fn consume(self: Pin<&mut Self>, amt: usize) {
self.project().rx.consume(amt);
}
}
pin_project! {
/// Write side of a multiplexor stream that implements futures `AsyncWrite`.
pub struct MuxStreamAsyncWrite {
#[pin]
tx: MuxStreamIoSink,
error: Option<std::io::Error>
}
}
impl MuxStreamAsyncWrite {
pub(crate) fn new(sink: MuxStreamIoSink) -> Self {
Self {
tx: sink,
error: None,
}
}
/// Get the stream's close reason, if it was closed.
pub fn get_close_reason(&self) -> Option<CloseReason> {
self.tx.get_close_reason()
}
}
impl AsyncWrite for MuxStreamAsyncWrite {
impl<W: WebSocketWrite> AsyncWrite for MuxStreamAsyncWrite<W> {
fn poll_write(
mut self: Pin<&mut Self>,
cx: &mut Context<'_>,
buf: &[u8],
) -> Poll<std::io::Result<usize>> {
if let Some(err) = self.error.take() {
return Poll::Ready(Err(err));
}
) -> Poll<io::Result<usize>> {
ready!(self.write.poll_lock(cx));
ready!(self.write.get().poll_flush(cx)).map_err(io::Error::other)?;
ready!(self.write.get().poll_ready(cx)).map_err(io::Error::other)?;
let mut this = self.as_mut().project();
let packet = Packet::new_data(self.info.id, buf);
self.write
.get()
.start_send(packet.encode())
.map_err(io::Error::other)?;
ready!(this.tx.as_mut().poll_ready(cx))?;
match this.tx.as_mut().start_send(buf.into()) {
Ok(()) => {
let mut cx = Context::from_waker(noop_waker_ref());
let cx = &mut cx;
match this.tx.poll_flush(cx) {
Poll::Ready(Err(err)) => {
self.error = Some(err);
}
Poll::Ready(Ok(())) | Poll::Pending => {}
}
Poll::Ready(Ok(buf.len()))
}
Err(e) => Poll::Ready(Err(e)),
}
self.write.unlock();
Poll::Ready(Ok(buf.len()))
}
fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<std::io::Result<()>> {
self.project().tx.poll_flush(cx)
fn poll_flush(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<io::Result<()>> {
ready!(self.write.poll_lock(cx));
ready!(self.write.get().poll_flush(cx)).map_err(io::Error::other)?;
self.write.unlock();
Poll::Ready(Ok(()))
}
fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<std::io::Result<()>> {
self.project().tx.poll_close(cx)
fn poll_close(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<io::Result<()>> {
if let Some(oneshot) = &mut self.oneshot {
let ret = ready!(oneshot.poll_unpin(cx));
self.oneshot.take();
Poll::Ready(
ret.map_err(|_| io::Error::other(WispError::MuxMessageFailedToSend))?
.map_err(io::Error::other),
)
} else {
ready!(self.as_mut().poll_flush(cx))?;
ready!(self.inner.poll_ready_unpin(cx))
.map_err(|_| io::Error::other(WispError::MuxMessageFailedToSend))?;
let (tx, rx) = oneshot::channel();
self.oneshot = Some(rx);
let pkt = WsEvent::Close(
self.info.id,
ClosePacket {
reason: CloseReason::Unknown,
},
tx,
);
self.inner
.start_send_unpin(pkt)
.map_err(|_| io::Error::other(WispError::MuxMessageFailedToSend))?;
Poll::Pending
}
}
}
#[pin_project]
pub struct MuxStreamAsyncRW<W: WebSocketWrite> {
#[pin]
read: MuxStreamAsyncRead<W>,
#[pin]
write: MuxStreamAsyncWrite<W>,
}
impl<W: WebSocketWrite> MuxStreamAsyncRW<W> {
pub(crate) fn new(old: MuxStream<W>) -> Self {
Self {
read: MuxStreamAsyncRead::new(old.read),
write: MuxStreamAsyncWrite::new(old.write),
}
}
pub fn into_split(self) -> (MuxStreamAsyncRead<W>, MuxStreamAsyncWrite<W>) {
(self.read, self.write)
}
/// Get the stream's close reason, if it was closed.
pub fn get_close_reason(&self) -> Option<CloseReason> {
self.write.get_close_reason()
}
}
impl<W: WebSocketWrite> AsyncRead for MuxStreamAsyncRW<W> {
fn poll_read(
self: Pin<&mut Self>,
cx: &mut Context<'_>,
buf: &mut [u8],
) -> Poll<io::Result<usize>> {
self.project().read.poll_read(cx, buf)
}
fn poll_read_vectored(
self: Pin<&mut Self>,
cx: &mut Context<'_>,
bufs: &mut [io::IoSliceMut<'_>],
) -> Poll<io::Result<usize>> {
self.project().read.poll_read_vectored(cx, bufs)
}
}
impl<W: WebSocketWrite> AsyncBufRead for MuxStreamAsyncRW<W> {
fn poll_fill_buf(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<io::Result<&[u8]>> {
self.project().read.poll_fill_buf(cx)
}
fn consume(self: Pin<&mut Self>, amt: usize) {
self.project().read.consume(amt);
}
}
impl<W: WebSocketWrite> AsyncWrite for MuxStreamAsyncRW<W> {
fn poll_write(
self: Pin<&mut Self>,
cx: &mut Context<'_>,
buf: &[u8],
) -> Poll<io::Result<usize>> {
self.project().write.poll_write(cx, buf)
}
fn poll_write_vectored(
self: Pin<&mut Self>,
cx: &mut Context<'_>,
bufs: &[io::IoSlice<'_>],
) -> Poll<io::Result<usize>> {
self.project().write.poll_write_vectored(cx, bufs)
}
fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<io::Result<()>> {
self.project().write.poll_flush(cx)
}
fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<io::Result<()>> {
self.project().write.poll_close(cx)
}
}

43
wisp/src/stream/handles.rs Normal file
View file

@ -0,0 +1,43 @@
use std::sync::Arc;
use futures::channel::oneshot;
use crate::{
packet::{ClosePacket, CloseReason},
ws::WebSocketWrite,
WispError,
};
use super::{StreamInfo, WsEvent};
/// Close handle for a multiplexor stream.
#[derive(Clone)]
pub struct MuxStreamCloser<W: WebSocketWrite> {
pub(crate) info: Arc<StreamInfo>,
pub(crate) inner: flume::Sender<WsEvent<W>>,
}
impl<W: WebSocketWrite + 'static> MuxStreamCloser<W> {
/// Close the stream. You will no longer be able to write or read after this has been called.
pub async fn close(&self, reason: CloseReason) -> Result<(), WispError> {
if self.inner.is_disconnected() {
return Err(WispError::StreamAlreadyClosed);
}
let (tx, rx) = oneshot::channel::<Result<(), WispError>>();
let evt = WsEvent::Close(self.info.id, ClosePacket { reason }, tx);
self.inner
.send_async(evt)
.await
.map_err(|_| WispError::MuxMessageFailedToSend)?;
rx.await.map_err(|_| WispError::MuxMessageFailedToRecv)??;
Ok(())
}
/// Get the stream's close reason, if it was closed.
pub fn get_close_reason(&self) -> Option<CloseReason> {
self.inner.is_disconnected().then(|| self.info.get_reason())
}
}

690
wisp/src/stream/mod.rs
View file

@ -1,407 +1,183 @@
mod compat;
mod sink_unfold;
pub use compat::*;
use crate::{
inner::WsEvent,
ws::{Frame, LockedWebSocketWrite, Payload, WebSocketWrite},
AtomicCloseReason, CloseReason, Packet, Role, StreamType, WispError,
};
use bytes::{BufMut, Bytes, BytesMut};
use event_listener::Event;
use flume as mpsc;
use futures::{channel::oneshot, select, stream, FutureExt, Sink, Stream};
use std::{
pin::Pin,
sync::{
atomic::{AtomicBool, AtomicU32, Ordering},
Arc,
},
sync::Arc,
task::{ready, Context, Poll},
};
/// Read side of a multiplexor stream.
pub struct MuxStreamRead<W: WebSocketWrite + 'static> {
/// ID of the stream.
pub stream_id: u32,
/// Type of the stream.
pub stream_type: StreamType,
use futures::{channel::oneshot, FutureExt, Sink, SinkExt, Stream, StreamExt};
role: Role,
use crate::{
mux::inner::{FlowControl, StreamInfo, WsEvent},
packet::{ClosePacket, CloseReason, Packet},
ws::{Payload, WebSocketWrite},
LockedWebSocketWrite, WispError,
};
tx: LockedWebSocketWrite<W>,
rx: mpsc::Receiver<Payload<'static>>,
mod compat;
mod handles;
pub use compat::*;
pub use handles::*;
is_closed: Arc<AtomicBool>,
is_closed_event: Arc<Event>,
close_reason: Arc<AtomicCloseReason>,
should_flow_control: bool,
flow_control: Arc<AtomicU32>,
flow_control_read: AtomicU32,
target_flow_control: u32,
macro_rules! unlock_some {
($unlock:expr, $x:expr) => {
if let Err(err) = $x {
$unlock.unlock();
return Poll::Ready(Some(Err(err)));
}
};
}
macro_rules! unlock {
($unlock:expr, $x:expr) => {
if let Err(err) = $x {
$unlock.unlock();
return Poll::Ready(Err(err));
}
};
}
impl<W: WebSocketWrite + 'static> MuxStreamRead<W> {
/// Read an event from the stream.
pub async fn read(&self) -> Result<Option<Payload<'static>>, WispError> {
if self.rx.is_empty() && self.is_closed.load(Ordering::Acquire) {
return Ok(None);
}
let bytes = select! {
x = self.rx.recv_async() => x.map_err(|_| WispError::MuxMessageFailedToRecv)?,
() = self.is_closed_event.listen().fuse() => return Ok(None)
};
if self.role == Role::Server && self.should_flow_control {
let val = self.flow_control_read.fetch_add(1, Ordering::AcqRel) + 1;
if val > self.target_flow_control && !self.is_closed.load(Ordering::Acquire) {
self.tx
.write_frame(
Packet::new_continue(
self.stream_id,
self.flow_control.fetch_add(val, Ordering::AcqRel) + val,
)
.into(),
)
.await?;
self.flow_control_read.store(0, Ordering::Release);
}
}
Ok(Some(bytes))
}
pub struct MuxStreamRead<W: WebSocketWrite> {
inner: flume::r#async::RecvStream<'static, Payload>,
write: LockedWebSocketWrite<W>,
info: Arc<StreamInfo>,
pub(crate) fn into_inner_stream(
self,
) -> Pin<Box<dyn Stream<Item = Result<Payload<'static>, WispError>> + Send>> {
Box::pin(stream::unfold(self, |rx| async move {
Some((rx.read().await.transpose()?, rx))
}))
}
/// Turn the read half into one that implements futures `Stream`, consuming it.
pub fn into_stream(self) -> MuxStreamIoStream {
MuxStreamIoStream {
close_reason: self.close_reason.clone(),
is_closed: self.is_closed.clone(),
rx: self.into_inner_stream(),
}
}
/// Get the stream's close reason, if it was closed.
pub fn get_close_reason(&self) -> Option<CloseReason> {
if self.is_closed.load(Ordering::Acquire) {
Some(self.close_reason.load(Ordering::Acquire))
} else {
None
}
}
read_cnt: u32,
chunk: Option<Payload>,
}
/// Write side of a multiplexor stream.
pub struct MuxStreamWrite<W: WebSocketWrite + 'static> {
/// ID of the stream.
pub stream_id: u32,
/// Type of the stream.
pub stream_type: StreamType,
role: Role,
mux_tx: mpsc::Sender<WsEvent<W>>,
tx: LockedWebSocketWrite<W>,
is_closed: Arc<AtomicBool>,
close_reason: Arc<AtomicCloseReason>,
continue_recieved: Arc<Event>,
should_flow_control: bool,
flow_control: Arc<AtomicU32>,
}
impl<W: WebSocketWrite + 'static> MuxStreamWrite<W> {
pub(crate) async fn write_payload_internal<'a>(
&self,
header: Frame<'static>,
body: Frame<'a>,
) -> Result<(), WispError> {
if self.role == Role::Client
&& self.should_flow_control
&& self.flow_control.load(Ordering::Acquire) == 0
{
self.continue_recieved.listen().await;
}
if self.is_closed.load(Ordering::Acquire) {
return Err(WispError::StreamAlreadyClosed);
}
self.tx.write_split(header, body).await?;
if self.role == Role::Client && self.stream_type == StreamType::Tcp {
self.flow_control.store(
self.flow_control.load(Ordering::Acquire).saturating_sub(1),
Ordering::Release,
);
}
Ok(())
}
/// Write a payload to the stream.
pub async fn write_payload(&self, data: Payload<'_>) -> Result<(), WispError> {
let frame: Frame<'static> = Frame::from(Packet::new_data(
self.stream_id,
Payload::Bytes(BytesMut::new()),
));
self.write_payload_internal(frame, Frame::binary(data))
.await
}
/// Write data to the stream.
pub async fn write<D: AsRef<[u8]>>(&self, data: D) -> Result<(), WispError> {
self.write_payload(Payload::Borrowed(data.as_ref())).await
}
/// Get a handle to close the connection.
///
/// Useful to close the connection without having access to the stream.
///
/// # Example
/// ```
/// let handle = stream.get_close_handle();
/// if let Err(error) = handle_stream(stream) {
/// handle.close(0x01);
/// }
/// ```
pub fn get_close_handle(&self) -> MuxStreamCloser<W> {
MuxStreamCloser {
stream_id: self.stream_id,
close_channel: self.mux_tx.clone(),
is_closed: self.is_closed.clone(),
close_reason: self.close_reason.clone(),
}
}
/// Get a protocol extension stream to send protocol extension packets.
pub fn get_protocol_extension_stream(&self) -> MuxProtocolExtensionStream<W> {
MuxProtocolExtensionStream {
stream_id: self.stream_id,
tx: self.tx.clone(),
is_closed: self.is_closed.clone(),
}
}
/// Close the stream. You will no longer be able to write or read after this has been called.
pub async fn close(&self, reason: CloseReason) -> Result<(), WispError> {
if self.is_closed.load(Ordering::Acquire) {
return Err(WispError::StreamAlreadyClosed);
}
self.is_closed.store(true, Ordering::Release);
let (tx, rx) = oneshot::channel::<Result<(), WispError>>();
self.mux_tx
.send_async(WsEvent::Close(
Packet::new_close(self.stream_id, reason),
tx,
))
.await
.map_err(|_| WispError::MuxMessageFailedToSend)?;
rx.await.map_err(|_| WispError::MuxMessageFailedToRecv)??;
Ok(())
}
/// Get the stream's close reason, if it was closed.
pub fn get_close_reason(&self) -> Option<CloseReason> {
if self.is_closed.load(Ordering::Acquire) {
Some(self.close_reason.load(Ordering::Acquire))
} else {
None
}
}
pub(crate) fn into_inner_sink(
self,
) -> Pin<Box<dyn Sink<Payload<'static>, Error = WispError> + Send>> {
let handle = self.get_close_handle();
Box::pin(sink_unfold::unfold(
self,
|tx, data| async move {
tx.write_payload(data).await?;
Ok(tx)
},
handle,
|handle| async move {
handle.close(CloseReason::Unknown).await?;
Ok(handle)
},
))
}
/// Turn the write half into one that implements futures `Sink`, consuming it.
pub fn into_sink(self) -> MuxStreamIoSink {
MuxStreamIoSink {
close_reason: self.close_reason.clone(),
is_closed: self.is_closed.clone(),
tx: self.into_inner_sink(),
}
}
}
impl<W: WebSocketWrite + 'static> Drop for MuxStreamWrite<W> {
fn drop(&mut self) {
if !self.is_closed.load(Ordering::Acquire) {
self.is_closed.store(true, Ordering::Release);
let (tx, _) = oneshot::channel();
let _ = self.mux_tx.send(WsEvent::Close(
Packet::new_close(self.stream_id, CloseReason::Unknown),
tx,
));
}
}
}
/// Multiplexor stream.
pub struct MuxStream<W: WebSocketWrite + 'static> {
/// ID of the stream.
pub stream_id: u32,
rx: MuxStreamRead<W>,
tx: MuxStreamWrite<W>,
}
impl<W: WebSocketWrite + 'static> MuxStream<W> {
#[allow(clippy::too_many_arguments)]
pub(crate) fn new(
stream_id: u32,
role: Role,
stream_type: StreamType,
rx: mpsc::Receiver<Payload<'static>>,
mux_tx: mpsc::Sender<WsEvent<W>>,
tx: LockedWebSocketWrite<W>,
is_closed: Arc<AtomicBool>,
is_closed_event: Arc<Event>,
close_reason: Arc<AtomicCloseReason>,
should_flow_control: bool,
flow_control: Arc<AtomicU32>,
continue_recieved: Arc<Event>,
target_flow_control: u32,
impl<W: WebSocketWrite> MuxStreamRead<W> {
fn new(
inner: flume::Receiver<Payload>,
write: LockedWebSocketWrite<W>,
info: Arc<StreamInfo>,
) -> Self {
Self {
stream_id,
rx: MuxStreamRead {
stream_id,
stream_type,
role,
inner: inner.into_stream(),
write,
info,
tx: tx.clone(),
rx,
is_closed: is_closed.clone(),
is_closed_event,
close_reason: close_reason.clone(),
should_flow_control,
flow_control: flow_control.clone(),
flow_control_read: AtomicU32::new(0),
target_flow_control,
},
tx: MuxStreamWrite {
stream_id,
stream_type,
role,
mux_tx,
tx,
is_closed,
close_reason,
continue_recieved,
should_flow_control,
flow_control,
},
chunk: None,
read_cnt: 0,
}
}
/// Read an event from the stream.
pub async fn read(&self) -> Result<Option<Payload<'static>>, WispError> {
self.rx.read().await
pub fn get_stream_id(&self) -> u32 {
self.info.id
}
/// Write a payload to the stream.
pub async fn write_payload(&self, data: Payload<'_>) -> Result<(), WispError> {
self.tx.write_payload(data).await
}
/// Write data to the stream.
pub async fn write<D: AsRef<[u8]>>(&self, data: D) -> Result<(), WispError> {
self.tx.write(data).await
}
/// Get a handle to close the connection.
///
/// Useful to close the connection without having access to the stream.
///
/// # Example
/// ```
/// let handle = stream.get_close_handle();
/// if let Err(error) = handle_stream(stream) {
/// handle.close(0x01);
/// }
/// ```
pub fn get_close_handle(&self) -> MuxStreamCloser<W> {
self.tx.get_close_handle()
}
/// Get a protocol extension stream to send protocol extension packets.
pub fn get_protocol_extension_stream(&self) -> MuxProtocolExtensionStream<W> {
self.tx.get_protocol_extension_stream()
}
/// Get the stream's close reason, if it was closed.
pub fn get_close_reason(&self) -> Option<CloseReason> {
self.rx.get_close_reason()
self.inner.is_disconnected().then(|| self.info.get_reason())
}
/// Close the stream. You will no longer be able to write or read after this has been called.
pub async fn close(&self, reason: CloseReason) -> Result<(), WispError> {
self.tx.close(reason).await
pub fn into_async_read(self) -> MuxStreamAsyncRead<W> {
MuxStreamAsyncRead::new(self)
}
}
/// Split the stream into read and write parts, consuming it.
pub fn into_split(self) -> (MuxStreamRead<W>, MuxStreamWrite<W>) {
(self.rx, self.tx)
impl<W: WebSocketWrite> Stream for MuxStreamRead<W> {
type Item = Result<Payload, WispError>;
fn poll_next(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Option<Self::Item>> {
if self.inner.is_disconnected() {
return Poll::Ready(None);
}
let was_reading = self.chunk.is_some();
let chunk = if let Some(chunk) = self.chunk.take() {
chunk
} else {
let Some(chunk) = ready!(self.inner.poll_next_unpin(cx)) else {
return Poll::Ready(None);
};
chunk
};
macro_rules! ready {
($x:expr) => {
match $x {
Poll::Ready(x) => x,
Poll::Pending => {
self.chunk = Some(chunk);
return Poll::Pending;
}
}
};
}
if self.info.flow_status == FlowControl::EnabledSendMessages {
if !was_reading {
self.read_cnt += 1;
}
if self.read_cnt > self.info.target_flow_control {
ready!(self.write.poll_lock(cx));
unlock_some!(self.write, ready!(self.write.get().poll_ready(cx)));
let pkt =
Packet::new_continue(self.info.id, self.info.flow_add(self.read_cnt)).encode();
unlock_some!(self.write, self.write.get().start_send(pkt));
self.write.unlock();
self.read_cnt = 0;
}
}
Poll::Ready(Some(Ok(chunk)))
}
}
/// Turn the stream into one that implements futures `Stream + Sink`, consuming it.
pub fn into_io(self) -> MuxStreamIo {
MuxStreamIo {
rx: self.rx.into_stream(),
tx: self.tx.into_sink(),
pub struct MuxStreamWrite<W: WebSocketWrite> {
inner: flume::r#async::SendSink<'static, WsEvent<W>>,
write: LockedWebSocketWrite<W>,
info: Arc<StreamInfo>,
chunk: Option<Payload>,
oneshot: Option<oneshot::Receiver<Result<(), WispError>>>,
}
impl<W: WebSocketWrite> MuxStreamWrite<W> {
fn new(
inner: flume::Sender<WsEvent<W>>,
write: LockedWebSocketWrite<W>,
info: Arc<StreamInfo>,
) -> Self {
Self {
inner: inner.into_sink(),
write,
info,
chunk: None,
oneshot: None,
}
}
}
/// Close handle for a multiplexor stream.
#[derive(Clone)]
pub struct MuxStreamCloser<W: WebSocketWrite + 'static> {
/// ID of the stream.
pub stream_id: u32,
close_channel: mpsc::Sender<WsEvent<W>>,
is_closed: Arc<AtomicBool>,
close_reason: Arc<AtomicCloseReason>,
}
pub fn get_stream_id(&self) -> u32 {
self.info.id
}
pub fn get_close_reason(&self) -> Option<CloseReason> {
self.inner.is_disconnected().then(|| self.info.get_reason())
}
pub fn get_close_handle(&self) -> MuxStreamCloser<W> {
MuxStreamCloser {
info: self.info.clone(),
inner: self.inner.sender().clone(),
}
}
impl<W: WebSocketWrite + 'static> MuxStreamCloser<W> {
/// Close the stream. You will no longer be able to write or read after this has been called.
pub async fn close(&self, reason: CloseReason) -> Result<(), WispError> {
if self.is_closed.load(Ordering::Acquire) {
if self.inner.is_disconnected() {
return Err(WispError::StreamAlreadyClosed);
}
self.is_closed.store(true, Ordering::Release);
let (tx, rx) = oneshot::channel::<Result<(), WispError>>();
self.close_channel
.send_async(WsEvent::Close(
Packet::new_close(self.stream_id, reason),
tx,
))
let evt = WsEvent::Close(self.info.id, ClosePacket { reason }, tx);
self.inner
.sender()
.send_async(evt)
.await
.map_err(|_| WispError::MuxMessageFailedToSend)?;
rx.await.map_err(|_| WispError::MuxMessageFailedToRecv)??;
@ -409,36 +185,170 @@ impl<W: WebSocketWrite + 'static> MuxStreamCloser<W> {
Ok(())
}
/// Get the stream's close reason, if it was closed.
pub fn get_close_reason(&self) -> Option<CloseReason> {
if self.is_closed.load(Ordering::Acquire) {
Some(self.close_reason.load(Ordering::Acquire))
pub fn into_async_write(self) -> MuxStreamAsyncWrite<W> {
MuxStreamAsyncWrite::new(self)
}
fn maybe_write(&mut self) -> Result<(), WispError> {
if let Some(chunk) = self.chunk.take() {
let packet = Packet::new_data(self.info.id, chunk).encode();
self.write.get().start_send(packet)?;
if self.info.flow_status == FlowControl::EnabledTrackAmount {
self.info.flow_dec();
}
}
Ok(())
}
}
impl<W: WebSocketWrite> Sink<Payload> for MuxStreamWrite<W> {
type Error = WispError;
fn poll_ready(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
if self.inner.is_disconnected() {
return Poll::Ready(Err(WispError::StreamAlreadyClosed));
}
if self.info.flow_status == FlowControl::EnabledTrackAmount && self.info.flow_empty() {
self.info.flow_register(cx);
return Poll::Pending;
}
if self.chunk.is_some() {
ready!(self.write.poll_lock(cx));
unlock!(self.write, ready!(self.write.get().poll_ready(cx)));
unlock!(self.write, self.maybe_write());
self.write.unlock();
}
Poll::Ready(Ok(()))
}
fn start_send(mut self: Pin<&mut Self>, item: Payload) -> Result<(), Self::Error> {
debug_assert!(self.chunk.is_none());
self.chunk = Some(item);
Ok(())
}
fn poll_flush(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
ready!(self.write.poll_lock(cx));
if self.chunk.is_some() {
unlock!(self.write, ready!(self.write.get().poll_ready(cx)));
unlock!(self.write, self.maybe_write());
}
unlock!(self.write, ready!(self.write.get().poll_flush(cx)));
self.write.unlock();
Poll::Ready(Ok(()))
}
fn poll_close(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
if let Some(oneshot) = &mut self.oneshot {
let ret = ready!(oneshot.poll_unpin(cx));
self.oneshot.take();
Poll::Ready(ret.map_err(|_| WispError::MuxMessageFailedToSend)?)
} else {
None
ready!(self.as_mut().poll_flush(cx))?;
ready!(self.inner.poll_ready_unpin(cx))
.map_err(|_| WispError::MuxMessageFailedToSend)?;
let (tx, rx) = oneshot::channel();
self.oneshot = Some(rx);
let pkt = WsEvent::Close(
self.info.id,
ClosePacket {
reason: CloseReason::Unknown,
},
tx,
);
self.inner
.start_send_unpin(pkt)
.map_err(|_| WispError::MuxMessageFailedToSend)?;
Poll::Pending
}
}
}
/// Stream for sending arbitrary protocol extension packets.
pub struct MuxProtocolExtensionStream<W: WebSocketWrite + 'static> {
/// ID of the stream.
pub stream_id: u32,
pub(crate) tx: LockedWebSocketWrite<W>,
pub(crate) is_closed: Arc<AtomicBool>,
pub struct MuxStream<W: WebSocketWrite> {
read: MuxStreamRead<W>,
write: MuxStreamWrite<W>,
}
impl<W: WebSocketWrite + 'static> MuxProtocolExtensionStream<W> {
/// Send a protocol extension packet with this stream's ID.
pub async fn send(&self, packet_type: u8, data: Bytes) -> Result<(), WispError> {
if self.is_closed.load(Ordering::Acquire) {
return Err(WispError::StreamAlreadyClosed);
impl<W: WebSocketWrite> MuxStream<W> {
pub(crate) fn new(
rx: flume::Receiver<Payload>,
tx: flume::Sender<WsEvent<W>>,
ws: LockedWebSocketWrite<W>,
info: Arc<StreamInfo>,
) -> Self {
Self {
read: MuxStreamRead::new(rx, ws.clone(), info.clone()),
write: MuxStreamWrite::new(tx, ws, info),
}
let mut encoded = BytesMut::with_capacity(1 + 4 + data.len());
encoded.put_u8(packet_type);
encoded.put_u32_le(self.stream_id);
encoded.extend(data);
self.tx
.write_frame(Frame::binary(Payload::Bytes(encoded)))
.await
}
pub fn get_stream_id(&self) -> u32 {
self.read.get_stream_id()
}
pub fn get_close_reason(&self) -> Option<CloseReason> {
self.read.get_close_reason()
}
pub fn get_close_handle(&self) -> MuxStreamCloser<W> {
self.write.get_close_handle()
}
/// Close the stream. You will no longer be able to write or read after this has been called.
pub async fn close(&self, reason: CloseReason) -> Result<(), WispError> {
self.write.close(reason).await
}
pub fn into_async_rw(self) -> MuxStreamAsyncRW<W> {
MuxStreamAsyncRW::new(self)
}
pub fn into_split(self) -> (MuxStreamRead<W>, MuxStreamWrite<W>) {
(self.read, self.write)
}
}
impl<W: WebSocketWrite> Stream for MuxStream<W> {
type Item = <MuxStreamRead<W> as Stream>::Item;
fn poll_next(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Option<Self::Item>> {
self.read.poll_next_unpin(cx)
}
fn size_hint(&self) -> (usize, Option<usize>) {
self.read.size_hint()
}
}
impl<W: WebSocketWrite> Sink<Payload> for MuxStream<W> {
type Error = <MuxStreamWrite<W> as Sink<Payload>>::Error;
fn poll_ready(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
self.write.poll_ready_unpin(cx)
}
fn start_send(mut self: Pin<&mut Self>, item: Payload) -> Result<(), Self::Error> {
self.write.start_send_unpin(item)
}
fn poll_flush(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
self.write.poll_flush_unpin(cx)
}
fn poll_close(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
self.write.poll_close_unpin(cx)
}
}

146
wisp/src/stream/sink_unfold.rs
View file

@ -1,146 +0,0 @@
//! futures sink unfold with a close function
use core::{future::Future, pin::Pin};
use futures::{
ready,
task::{Context, Poll},
Sink,
};
use pin_project_lite::pin_project;
pin_project! {
/// UnfoldState used for stream and sink unfolds
#[project = UnfoldStateProj]
#[project_replace = UnfoldStateProjReplace]
#[derive(Debug)]
pub(crate) enum UnfoldState<T, Fut> {
Value {
value: T,
},
Future {
#[pin]
future: Fut,
},
Empty,
}
}
impl<T, Fut> UnfoldState<T, Fut> {
pub(crate) fn project_future(self: Pin<&mut Self>) -> Option<Pin<&mut Fut>> {
match self.project() {
UnfoldStateProj::Future { future } => Some(future),
_ => None,
}
}
pub(crate) fn take_value(self: Pin<&mut Self>) -> Option<T> {
match &*self {
Self::Value { .. } => match self.project_replace(Self::Empty) {
UnfoldStateProjReplace::Value { value } => Some(value),
_ => unreachable!(),
},
_ => None,
}
}
}
pin_project! {
/// Sink for the [`unfold`] function.
#[derive(Debug)]
#[must_use = "sinks do nothing unless polled"]
pub struct Unfold<T, F, R, CT, CF, CR> {
function: F,
close_function: CF,
#[pin]
state: UnfoldState<T, R>,
#[pin]
close_state: UnfoldState<CT, CR>
}
}
pub(crate) fn unfold<T, F, R, CT, CF, CR, Item, E>(
init: T,
function: F,
close_init: CT,
close_function: CF,
) -> Unfold<T, F, R, CT, CF, CR>
where
F: FnMut(T, Item) -> R,
R: Future<Output = Result<T, E>>,
CF: FnMut(CT) -> CR,
CR: Future<Output = Result<CT, E>>,
{
Unfold {
function,
close_function,
state: UnfoldState::Value { value: init },
close_state: UnfoldState::Value { value: close_init },
}
}
impl<T, F, R, CT, CF, CR, Item, E> Sink<Item> for Unfold<T, F, R, CT, CF, CR>
where
F: FnMut(T, Item) -> R,
R: Future<Output = Result<T, E>>,
CF: FnMut(CT) -> CR,
CR: Future<Output = Result<CT, E>>,
{
type Error = E;
fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
self.poll_flush(cx)
}
fn start_send(self: Pin<&mut Self>, item: Item) -> Result<(), Self::Error> {
let mut this = self.project();
let future = match this.state.as_mut().take_value() {
Some(value) => (this.function)(value, item),
None => panic!("start_send called without poll_ready being called first"),
};
this.state.set(UnfoldState::Future { future });
Ok(())
}
fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
let mut this = self.project();
Poll::Ready(if let Some(future) = this.state.as_mut().project_future() {
match ready!(future.poll(cx)) {
Ok(state) => {
this.state.set(UnfoldState::Value { value: state });
Ok(())
}
Err(err) => {
this.state.set(UnfoldState::Empty);
Err(err)
}
}
} else {
Ok(())
})
}
fn poll_close(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
ready!(self.as_mut().poll_flush(cx))?;
let mut this = self.project();
Poll::Ready(
if let Some(future) = this.close_state.as_mut().project_future() {
match ready!(future.poll(cx)) {
Ok(state) => {
this.close_state.set(UnfoldState::Value { value: state });
Ok(())
}
Err(err) => {
this.close_state.set(UnfoldState::Empty);
Err(err)
}
}
} else {
let future = match this.close_state.as_mut().take_value() {
Some(value) => (this.close_function)(value),
None => panic!("start_send called without poll_ready being called first"),
};
this.close_state.set(UnfoldState::Future { future });
return Poll::Pending;
},
)
}
}

557
wisp/src/ws.rs
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//! Abstraction over WebSocket implementations.
//!
//! Use the [`fastwebsockets`] implementation of these traits as an example for implementing them
//! for other WebSocket implementations.
//!
//! [`fastwebsockets`]: https://github.com/MercuryWorkshop/epoxy-tls/blob/multiplexed/wisp/src/fastwebsockets.rs
use std::{future::Future, ops::Deref, pin::Pin, sync::Arc};
use crate::WispError;
use bytes::{Buf, Bytes, BytesMut};
use futures::{lock::Mutex, TryFutureExt};
/// Payload of the websocket frame.
#[derive(Debug)]
pub enum Payload<'a> {
/// Borrowed payload. Currently used when writing data.
Borrowed(&'a [u8]),
/// `BytesMut` payload. Currently used when reading data.
Bytes(BytesMut),
}
impl From<BytesMut> for Payload<'static> {
fn from(value: BytesMut) -> Self {
Self::Bytes(value)
}
}
impl<'a> From<&'a [u8]> for Payload<'a> {
fn from(value: &'a [u8]) -> Self {
Self::Borrowed(value)
}
}
impl Payload<'_> {
/// Turn a Payload<'a> into a Payload<'static> by copying the data.
#[must_use]
pub fn into_owned(self) -> Self {
match self {
Self::Bytes(x) => Self::Bytes(x),
Self::Borrowed(x) => Self::Bytes(BytesMut::from(x)),
}
}
}
impl From<Payload<'_>> for BytesMut {
fn from(value: Payload<'_>) -> Self {
match value {
Payload::Bytes(x) => x,
Payload::Borrowed(x) => x.into(),
}
}
}
impl From<Payload<'static>> for Bytes {
fn from(value: Payload<'static>) -> Self {
match value {
Payload::Bytes(x) => x.freeze(),
Payload::Borrowed(x) => x.into(),
}
}
}
impl Deref for Payload<'_> {
type Target = [u8];
fn deref(&self) -> &Self::Target {
match self {
Self::Bytes(x) => x,
Self::Borrowed(x) => x,
}
}
}
impl AsRef<[u8]> for Payload<'_> {
fn as_ref(&self) -> &[u8] {
self
}
}
impl Clone for Payload<'_> {
fn clone(&self) -> Self {
match self {
Self::Bytes(x) => Self::Bytes(x.clone()),
Self::Borrowed(x) => Self::Bytes(BytesMut::from(*x)),
}
}
}
impl Buf for Payload<'_> {
fn remaining(&self) -> usize {
match self {
Self::Bytes(x) => x.remaining(),
Self::Borrowed(x) => x.remaining(),
}
}
fn chunk(&self) -> &[u8] {
match self {
Self::Bytes(x) => x.chunk(),
Self::Borrowed(x) => x.chunk(),
}
}
fn advance(&mut self, cnt: usize) {
match self {
Self::Bytes(x) => x.advance(cnt),
Self::Borrowed(x) => x.advance(cnt),
}
}
}
/// Opcode of the WebSocket frame.
#[derive(Debug, PartialEq, Clone, Copy)]
pub enum OpCode {
/// Text frame.
Text,
/// Binary frame.
Binary,
/// Close frame.
Close,
/// Ping frame.
Ping,
/// Pong frame.
Pong,
}
/// WebSocket frame.
#[derive(Debug, Clone)]
pub struct Frame<'a> {
/// Whether the frame is finished or not.
pub finished: bool,
/// Opcode of the WebSocket frame.
pub opcode: OpCode,
/// Payload of the WebSocket frame.
pub payload: Payload<'a>,
}
impl<'a> Frame<'a> {
/// Create a new frame.
pub fn new(opcode: OpCode, payload: Payload<'a>, finished: bool) -> Self {
Self {
finished,
opcode,
payload,
}
}
/// Create a new text frame.
pub fn text(payload: Payload<'a>) -> Self {
Self {
finished: true,
opcode: OpCode::Text,
payload,
}
}
/// Create a new binary frame.
pub fn binary(payload: Payload<'a>) -> Self {
Self {
finished: true,
opcode: OpCode::Binary,
payload,
}
}
/// Create a new close frame.
pub fn close(payload: Payload<'a>) -> Self {
Self {
finished: true,
opcode: OpCode::Close,
payload,
}
}
}
/// Generic WebSocket read trait.
pub trait WebSocketRead: Send {
/// Read a frame from the socket.
fn wisp_read_frame(
&mut self,
tx: &dyn LockingWebSocketWrite,
) -> impl Future<Output = Result<Frame<'static>, WispError>> + Send;
/// Read a split frame from the socket.
fn wisp_read_split(
&mut self,
tx: &dyn LockingWebSocketWrite,
) -> impl Future<Output = Result<(Frame<'static>, Option<Frame<'static>>), WispError>> + Send {
self.wisp_read_frame(tx).map_ok(|x| (x, None))
}
}
// similar to what dynosaur does
mod wsr_inner {
use std::{future::Future, pin::Pin, ptr};
use crate::WispError;
use super::{Frame, LockingWebSocketWrite, WebSocketRead};
trait ErasedWebSocketRead: Send {
fn wisp_read_frame<'a>(
&'a mut self,
tx: &'a dyn LockingWebSocketWrite,
) -> Pin<Box<dyn Future<Output = Result<Frame<'static>, WispError>> + Send + 'a>>;
#[expect(clippy::type_complexity)]
fn wisp_read_split<'a>(
&'a mut self,
tx: &'a dyn LockingWebSocketWrite,
) -> Pin<
Box<
dyn Future<Output = Result<(Frame<'static>, Option<Frame<'static>>), WispError>>
+ Send
+ 'a,
>,
>;
}
impl<T: WebSocketRead> ErasedWebSocketRead for T {
fn wisp_read_frame<'a>(
&'a mut self,
tx: &'a dyn LockingWebSocketWrite,
) -> Pin<Box<dyn Future<Output = Result<Frame<'static>, WispError>> + Send + 'a>> {
Box::pin(self.wisp_read_frame(tx))
}
fn wisp_read_split<'a>(
&'a mut self,
tx: &'a dyn LockingWebSocketWrite,
) -> Pin<
Box<
dyn Future<Output = Result<(Frame<'static>, Option<Frame<'static>>), WispError>>
+ Send
+ 'a,
>,
> {
Box::pin(self.wisp_read_split(tx))
}
}
/// `WebSocketRead` trait object.
#[repr(transparent)]
pub struct DynWebSocketRead {
ptr: dyn ErasedWebSocketRead + 'static,
}
impl WebSocketRead for DynWebSocketRead {
async fn wisp_read_frame(
&mut self,
tx: &dyn LockingWebSocketWrite,
) -> Result<Frame<'static>, WispError> {
self.ptr.wisp_read_frame(tx).await
}
async fn wisp_read_split(
&mut self,
tx: &dyn LockingWebSocketWrite,
) -> Result<(Frame<'static>, Option<Frame<'static>>), WispError> {
self.ptr.wisp_read_split(tx).await
}
}
impl DynWebSocketRead {
/// Create a `WebSocketRead` trait object from a boxed `WebSocketRead`.
pub fn new(val: Box<impl WebSocketRead + 'static>) -> Box<Self> {
let val: Box<dyn ErasedWebSocketRead + 'static> = val;
unsafe { std::mem::transmute(val) }
}
/// Create a `WebSocketRead` trait object from a `WebSocketRead`.
pub fn boxed(val: impl WebSocketRead + 'static) -> Box<Self> {
Self::new(Box::new(val))
}
/// Create a `WebSocketRead` trait object from a `WebSocketRead` reference.
pub fn from_ref(val: &(impl WebSocketRead + 'static)) -> &Self {
let val: &(dyn ErasedWebSocketRead + 'static) = val;
unsafe { &*(ptr::from_ref::<dyn ErasedWebSocketRead>(val) as *const DynWebSocketRead) }
}
/// Create a `WebSocketRead` trait object from a mutable `WebSocketRead` reference.
pub fn from_mut(val: &mut (impl WebSocketRead + 'static)) -> &mut Self {
let val: &mut (dyn ErasedWebSocketRead + 'static) = &mut *val;
unsafe {
&mut *(ptr::from_mut::<dyn ErasedWebSocketRead>(val) as *mut DynWebSocketRead)
}
}
}
}
pub use wsr_inner::DynWebSocketRead;
/// Generic WebSocket write trait.
pub trait WebSocketWrite: Send {
/// Write a frame to the socket.
fn wisp_write_frame(
&mut self,
frame: Frame<'_>,
) -> impl Future<Output = Result<(), WispError>> + Send;
/// Write a split frame to the socket.
fn wisp_write_split(
&mut self,
header: Frame<'_>,
body: Frame<'_>,
) -> impl Future<Output = Result<(), WispError>> + Send {
async move {
let mut payload = BytesMut::from(header.payload);
payload.extend_from_slice(&body.payload);
self.wisp_write_frame(Frame::binary(Payload::Bytes(payload)))
.await
}
}
/// Close the socket.
fn wisp_close(&mut self) -> impl Future<Output = Result<(), WispError>> + Send;
}
// similar to what dynosaur does
mod wsw_inner {
use std::{future::Future, pin::Pin, ptr};
use crate::WispError;
use super::{Frame, WebSocketWrite};
trait ErasedWebSocketWrite: Send {
fn wisp_write_frame<'a>(
&'a mut self,
frame: Frame<'a>,
) -> Pin<Box<dyn Future<Output = Result<(), WispError>> + Send + 'a>>;
fn wisp_write_split<'a>(
&'a mut self,
header: Frame<'a>,
body: Frame<'a>,
) -> Pin<Box<dyn Future<Output = Result<(), WispError>> + Send + 'a>>;
fn wisp_close<'a>(
&'a mut self,
) -> Pin<Box<dyn Future<Output = Result<(), WispError>> + Send + 'a>>;
}
impl<T: WebSocketWrite> ErasedWebSocketWrite for T {
fn wisp_write_frame<'a>(
&'a mut self,
frame: Frame<'a>,
) -> Pin<Box<dyn Future<Output = Result<(), WispError>> + Send + 'a>> {
Box::pin(self.wisp_write_frame(frame))
}
fn wisp_write_split<'a>(
&'a mut self,
header: Frame<'a>,
body: Frame<'a>,
) -> Pin<Box<dyn Future<Output = Result<(), WispError>> + Send + 'a>> {
Box::pin(self.wisp_write_split(header, body))
}
fn wisp_close<'a>(
&'a mut self,
) -> Pin<Box<dyn Future<Output = Result<(), WispError>> + Send + 'a>> {
Box::pin(self.wisp_close())
}
}
/// `WebSocketWrite` trait object.
#[repr(transparent)]
pub struct DynWebSocketWrite {
ptr: dyn ErasedWebSocketWrite + 'static,
}
impl WebSocketWrite for DynWebSocketWrite {
async fn wisp_write_frame(&mut self, frame: Frame<'_>) -> Result<(), WispError> {
self.ptr.wisp_write_frame(frame).await
}
async fn wisp_write_split(
&mut self,
header: Frame<'_>,
body: Frame<'_>,
) -> Result<(), WispError> {
self.ptr.wisp_write_split(header, body).await
}
async fn wisp_close(&mut self) -> Result<(), WispError> {
self.ptr.wisp_close().await
}
}
impl DynWebSocketWrite {
/// Create a new `WebSocketWrite` trait object from a boxed `WebSocketWrite`.
pub fn new(val: Box<impl WebSocketWrite + 'static>) -> Box<Self> {
let val: Box<dyn ErasedWebSocketWrite + 'static> = val;
unsafe { std::mem::transmute(val) }
}
/// Create a new `WebSocketWrite` trait object from a `WebSocketWrite`.
pub fn boxed(val: impl WebSocketWrite + 'static) -> Box<Self> {
Self::new(Box::new(val))
}
/// Create a new `WebSocketWrite` trait object from a `WebSocketWrite` reference.
pub fn from_ref(val: &(impl WebSocketWrite + 'static)) -> &Self {
let val: &(dyn ErasedWebSocketWrite + 'static) = val;
unsafe {
&*(ptr::from_ref::<dyn ErasedWebSocketWrite>(val) as *const DynWebSocketWrite)
}
}
/// Create a new `WebSocketWrite` trait object from a mutable `WebSocketWrite` reference.
pub fn from_mut(val: &mut (impl WebSocketWrite + 'static)) -> &mut Self {
let val: &mut (dyn ErasedWebSocketWrite + 'static) = &mut *val;
unsafe {
&mut *(ptr::from_mut::<dyn ErasedWebSocketWrite>(val) as *mut DynWebSocketWrite)
}
}
}
}
pub use wsw_inner::DynWebSocketWrite;
mod private {
pub trait Sealed {}
}
/// Helper trait object for `LockedWebSocketWrite`.
pub trait LockingWebSocketWrite: private::Sealed + Sync {
/// Write a frame to the websocket.
fn wisp_write_frame<'a>(
&'a self,
frame: Frame<'a>,
) -> Pin<Box<dyn Future<Output = Result<(), WispError>> + Send + 'a>>;
/// Write a split frame to the websocket.
fn wisp_write_split<'a>(
&'a self,
header: Frame<'a>,
body: Frame<'a>,
) -> Pin<Box<dyn Future<Output = Result<(), WispError>> + Send + 'a>>;
/// Close the websocket.
fn wisp_close<'a>(&'a self)
-> Pin<Box<dyn Future<Output = Result<(), WispError>> + Send + 'a>>;
}
/// Locked WebSocket.
pub struct LockedWebSocketWrite<T: WebSocketWrite>(Arc<Mutex<T>>);
impl<T: WebSocketWrite> Clone for LockedWebSocketWrite<T> {
fn clone(&self) -> Self {
Self(self.0.clone())
}
}
impl<T: WebSocketWrite> LockedWebSocketWrite<T> {
/// Create a new locked websocket.
pub fn new(ws: T) -> Self {
Self(Mutex::new(ws).into())
}
/// Create a new locked websocket from an existing mutex.
pub fn from_locked(locked: Arc<Mutex<T>>) -> Self {
Self(locked)
}
/// Write a frame to the websocket.
pub async fn write_frame(&self, frame: Frame<'_>) -> Result<(), WispError> {
self.0.lock().await.wisp_write_frame(frame).await
}
/// Write a split frame to the websocket.
pub async fn write_split(&self, header: Frame<'_>, body: Frame<'_>) -> Result<(), WispError> {
self.0.lock().await.wisp_write_split(header, body).await
}
/// Close the websocket.
pub async fn close(&self) -> Result<(), WispError> {
self.0.lock().await.wisp_close().await
}
}
impl<T: WebSocketWrite> private::Sealed for LockedWebSocketWrite<T> {}
impl<T: WebSocketWrite> LockingWebSocketWrite for LockedWebSocketWrite<T> {
fn wisp_write_frame<'a>(
&'a self,
frame: Frame<'a>,
) -> Pin<Box<dyn Future<Output = Result<(), WispError>> + Send + 'a>> {
Box::pin(self.write_frame(frame))
}
fn wisp_write_split<'a>(
&'a self,
header: Frame<'a>,
body: Frame<'a>,
) -> Pin<Box<dyn Future<Output = Result<(), WispError>> + Send + 'a>> {
Box::pin(self.write_split(header, body))
}
fn wisp_close<'a>(
&'a self,
) -> Pin<Box<dyn Future<Output = Result<(), WispError>> + Send + 'a>> {
Box::pin(self.close())
}
}
/// Combines two different `WebSocketRead`s together.
pub enum EitherWebSocketRead<A: WebSocketRead, B: WebSocketRead> {
/// First `WebSocketRead` variant.
Left(A),
/// Second `WebSocketRead` variant.
Right(B),
}
impl<A: WebSocketRead, B: WebSocketRead> WebSocketRead for EitherWebSocketRead<A, B> {
async fn wisp_read_frame(
&mut self,
tx: &dyn LockingWebSocketWrite,
) -> Result<Frame<'static>, WispError> {
match self {
Self::Left(x) => x.wisp_read_frame(tx).await,
Self::Right(x) => x.wisp_read_frame(tx).await,
}
}
async fn wisp_read_split(
&mut self,
tx: &dyn LockingWebSocketWrite,
) -> Result<(Frame<'static>, Option<Frame<'static>>), WispError> {
match self {
Self::Left(x) => x.wisp_read_split(tx).await,
Self::Right(x) => x.wisp_read_split(tx).await,
}
}
}
/// Combines two different `WebSocketWrite`s together.
pub enum EitherWebSocketWrite<A: WebSocketWrite, B: WebSocketWrite> {
/// First `WebSocketWrite` variant.
Left(A),
/// Second `WebSocketWrite` variant.
Right(B),
}
impl<A: WebSocketWrite, B: WebSocketWrite> WebSocketWrite for EitherWebSocketWrite<A, B> {
async fn wisp_write_frame(&mut self, frame: Frame<'_>) -> Result<(), WispError> {
match self {
Self::Left(x) => x.wisp_write_frame(frame).await,
Self::Right(x) => x.wisp_write_frame(frame).await,
}
}
async fn wisp_write_split(
&mut self,
header: Frame<'_>,
body: Frame<'_>,
) -> Result<(), WispError> {
match self {
Self::Left(x) => x.wisp_write_split(header, body).await,
Self::Right(x) => x.wisp_write_split(header, body).await,
}
}
async fn wisp_close(&mut self) -> Result<(), WispError> {
match self {
Self::Left(x) => x.wisp_close().await,
Self::Right(x) => x.wisp_close().await,
}
}
}

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wisp/src/ws/mod.rs Normal file
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use std::ops::Deref;
use bytes::{Bytes, BytesMut};
use futures::{Sink, Stream, StreamExt};
use crate::WispError;
mod split;
pub use split::*;
mod unfold;
pub use unfold::*;
#[cfg(feature = "tokio-websockets")]
mod tokio_websockets;
#[cfg(feature = "tokio-websockets")]
pub use self::tokio_websockets::*;
#[cfg(feature = "tokio-tungstenite")]
mod tokio_tungstenite;
#[cfg(feature = "tokio-tungstenite")]
pub use self::tokio_tungstenite::*;
#[derive(Debug, Clone, Eq, PartialEq)]
pub enum PayloadRef<'a> {
Owned(Payload),
Borrowed(&'a [u8]),
}
impl PayloadRef<'_> {
pub fn into_owned(self) -> Payload {
match self {
Self::Owned(x) => x,
Self::Borrowed(x) => BytesMut::from(x).freeze(),
}
}
}
impl From<Payload> for PayloadRef<'static> {
fn from(value: Payload) -> Self {
Self::Owned(value)
}
}
impl<'a> From<&'a [u8]> for PayloadRef<'a> {
fn from(value: &'a [u8]) -> Self {
Self::Borrowed(value)
}
}
impl Deref for PayloadRef<'_> {
type Target = [u8];
fn deref(&self) -> &Self::Target {
match self {
Self::Owned(x) => x,
Self::Borrowed(x) => x,
}
}
}
pub type Payload = Bytes;
pub type PayloadMut = BytesMut;
pub trait WebSocketRead:
Stream<Item = Result<Payload, WispError>> + Send + Unpin + 'static
{
}
impl<S: Stream<Item = Result<Payload, WispError>> + Send + Unpin + 'static> WebSocketRead for S {}
pub(crate) trait WebSocketReadExt: WebSocketRead {
async fn next_erroring(&mut self) -> Result<Payload, WispError> {
self.next().await.ok_or(WispError::WsImplSocketClosed)?
}
}
impl<S: WebSocketRead> WebSocketReadExt for S {}
pub trait WebSocketWrite: Sink<Payload, Error = WispError> + Send + Unpin + 'static {}
impl<S: Sink<Payload, Error = WispError> + Send + Unpin + 'static> WebSocketWrite for S {}
pub trait WebSocketExt: WebSocketRead + WebSocketWrite + Sized {
fn split_fast(self) -> (WebSocketSplitRead<Self>, WebSocketSplitWrite<Self>) {
split::split(self)
}
}
impl<S: WebSocketRead + WebSocketWrite + Sized> WebSocketExt for S {}

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wisp/src/ws/split.rs Normal file
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use std::sync::{Arc, Mutex, MutexGuard};
use futures::{Sink, SinkExt, Stream, StreamExt};
use super::{WebSocketRead, WebSocketWrite};
fn lock<T>(mutex: &Mutex<T>) -> MutexGuard<'_, T> {
mutex.lock().expect("WebSocketSplit mutex was poisoned")
}
pub(crate) fn split<S: WebSocketRead + WebSocketWrite>(
s: S,
) -> (WebSocketSplitRead<S>, WebSocketSplitWrite<S>) {
let inner = Arc::new(Mutex::new(s));
(
WebSocketSplitRead(inner.clone()),
WebSocketSplitWrite(inner),
)
}
pub struct WebSocketSplitRead<S: WebSocketRead + WebSocketWrite>(Arc<Mutex<S>>);
impl<S: WebSocketRead + WebSocketWrite> Stream for WebSocketSplitRead<S> {
type Item = S::Item;
fn poll_next(
self: std::pin::Pin<&mut Self>,
cx: &mut std::task::Context<'_>,
) -> std::task::Poll<Option<Self::Item>> {
lock(&self.0).poll_next_unpin(cx)
}
}
pub struct WebSocketSplitWrite<S: WebSocketRead + WebSocketWrite>(Arc<Mutex<S>>);
impl<S: WebSocketRead + WebSocketWrite + Sink<T>, T> Sink<T> for WebSocketSplitWrite<S> {
type Error = <S as Sink<T>>::Error;
fn poll_ready(
self: std::pin::Pin<&mut Self>,
cx: &mut std::task::Context<'_>,
) -> std::task::Poll<Result<(), Self::Error>> {
<S as SinkExt<T>>::poll_ready_unpin(&mut *lock(&self.0), cx)
}
fn start_send(self: std::pin::Pin<&mut Self>, item: T) -> Result<(), Self::Error> {
<S as SinkExt<T>>::start_send_unpin(&mut *lock(&self.0), item)
}
fn poll_flush(
self: std::pin::Pin<&mut Self>,
cx: &mut std::task::Context<'_>,
) -> std::task::Poll<Result<(), Self::Error>> {
<S as SinkExt<T>>::poll_flush_unpin(&mut *lock(&self.0), cx)
}
fn poll_close(
self: std::pin::Pin<&mut Self>,
cx: &mut std::task::Context<'_>,
) -> std::task::Poll<Result<(), Self::Error>> {
<S as SinkExt<T>>::poll_close_unpin(&mut *lock(&self.0), cx)
}
}

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wisp/src/ws/tokio_tungstenite.rs Normal file
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use std::task::Poll;
use futures::{Sink, Stream};
use pin_project::pin_project;
use tokio::io::{AsyncRead, AsyncWrite};
use tokio_tungstenite::{tungstenite::Message, WebSocketStream};
use crate::WispError;
use super::Payload;
#[pin_project]
pub struct TokioTungsteniteTransport<S: AsyncRead + AsyncWrite + Unpin>(
#[pin] pub WebSocketStream<S>,
);
fn map_err(x: tokio_tungstenite::tungstenite::Error) -> WispError {
if matches!(x, tokio_tungstenite::tungstenite::Error::AlreadyClosed) {
WispError::WsImplSocketClosed
} else {
WispError::WsImplError(Box::new(x))
}
}
impl<S: AsyncRead + AsyncWrite + Unpin> Stream for TokioTungsteniteTransport<S> {
type Item = Result<Payload, WispError>;
fn poll_next(
mut self: std::pin::Pin<&mut Self>,
cx: &mut std::task::Context<'_>,
) -> Poll<Option<Self::Item>> {
match self.as_mut().project().0.poll_next(cx) {
Poll::Ready(Some(Ok(x))) => {
if x.is_binary() {
Poll::Ready(Some(Ok(x.into_data())))
} else if x.is_close() {
Poll::Ready(None)
} else {
self.poll_next(cx)
}
}
Poll::Ready(Some(Err(x))) => Poll::Ready(Some(Err(map_err(x)))),
Poll::Ready(None) => Poll::Ready(None),
Poll::Pending => Poll::Pending,
}
}
}
impl<S: AsyncRead + AsyncWrite + Unpin> Sink<Payload> for TokioTungsteniteTransport<S> {
type Error = WispError;
fn poll_ready(
self: std::pin::Pin<&mut Self>,
cx: &mut std::task::Context<'_>,
) -> Poll<Result<(), Self::Error>> {
self.project().0.poll_ready(cx).map_err(map_err)
}
fn start_send(self: std::pin::Pin<&mut Self>, item: Payload) -> Result<(), Self::Error> {
self.project()
.0
.start_send(Message::binary(item))
.map_err(map_err)
}
fn poll_flush(
self: std::pin::Pin<&mut Self>,
cx: &mut std::task::Context<'_>,
) -> Poll<Result<(), Self::Error>> {
self.project().0.poll_flush(cx).map_err(map_err)
}
fn poll_close(
self: std::pin::Pin<&mut Self>,
cx: &mut std::task::Context<'_>,
) -> Poll<Result<(), Self::Error>> {
self.project().0.poll_flush(cx).map_err(map_err)
}
}

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wisp/src/ws/tokio_websockets.rs Normal file
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use std::{pin::Pin, task::Poll};
use futures::{Sink, SinkExt, Stream, StreamExt};
use pin_project::pin_project;
use tokio::io::{AsyncRead, AsyncWrite};
use tokio_websockets::{Message, WebSocketStream};
use crate::WispError;
use super::Payload;
#[pin_project]
pub struct TokioWebsocketsTransport<S: AsyncRead + AsyncWrite + Unpin>(
#[pin] pub WebSocketStream<S>,
);
fn map_err(x: tokio_websockets::Error) -> WispError {
if matches!(x, tokio_websockets::Error::AlreadyClosed) {
WispError::WsImplSocketClosed
} else {
WispError::WsImplError(Box::new(x))
}
}
impl<S: AsyncRead + AsyncWrite + Unpin> Stream for TokioWebsocketsTransport<S> {
type Item = Result<Payload, WispError>;
fn poll_next(
mut self: Pin<&mut Self>,
cx: &mut std::task::Context<'_>,
) -> Poll<Option<Self::Item>> {
match self.0.poll_next_unpin(cx) {
Poll::Ready(Some(Ok(x))) => {
if x.is_binary() {
Poll::Ready(Some(Ok(x.into_payload().into())))
} else if x.is_close() {
Poll::Ready(None)
} else {
self.poll_next(cx)
}
}
Poll::Ready(Some(Err(x))) => Poll::Ready(Some(Err(map_err(x)))),
Poll::Ready(None) => Poll::Ready(None),
Poll::Pending => Poll::Pending,
}
}
}
impl<S: AsyncRead + AsyncWrite + Unpin> Sink<Payload> for TokioWebsocketsTransport<S> {
type Error = WispError;
fn poll_ready(
mut self: Pin<&mut Self>,
cx: &mut std::task::Context<'_>,
) -> Poll<Result<(), Self::Error>> {
self.0.poll_ready_unpin(cx).map_err(map_err)
}
fn start_send(mut self: Pin<&mut Self>, item: Payload) -> Result<(), Self::Error> {
self.0
.start_send_unpin(Message::binary(item))
.map_err(map_err)
}
fn poll_flush(
mut self: Pin<&mut Self>,
cx: &mut std::task::Context<'_>,
) -> Poll<Result<(), Self::Error>> {
self.0.poll_flush_unpin(cx).map_err(map_err)
}
fn poll_close(
mut self: Pin<&mut Self>,
cx: &mut std::task::Context<'_>,
) -> Poll<Result<(), Self::Error>> {
self.0.poll_close_unpin(cx).map_err(map_err)
}
}
impl<S: AsyncRead + AsyncWrite + Unpin> Sink<Message> for TokioWebsocketsTransport<S> {
type Error = tokio_websockets::Error;
fn poll_ready(
mut self: Pin<&mut Self>,
cx: &mut std::task::Context<'_>,
) -> Poll<Result<(), Self::Error>> {
self.0.poll_ready_unpin(cx)
}
fn start_send(mut self: Pin<&mut Self>, item: Message) -> Result<(), Self::Error> {
self.0.start_send_unpin(item)
}
fn poll_flush(
mut self: Pin<&mut Self>,
cx: &mut std::task::Context<'_>,
) -> Poll<Result<(), Self::Error>> {
self.0.poll_flush_unpin(cx)
}
fn poll_close(
mut self: Pin<&mut Self>,
cx: &mut std::task::Context<'_>,
) -> Poll<Result<(), Self::Error>> {
self.0.poll_close_unpin(cx)
}
}

198
wisp/src/ws/unfold.rs Normal file
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// Similar to `futures-util` `StreamExt::unfold` and `SinkExt::unfold`
use std::{
future::Future,
pin::Pin,
task::{ready, Context, Poll},
};
use futures::{Sink, Stream};
use pin_project::pin_project;
use crate::WispError;
use super::Payload;
pub fn async_iterator_transport_read<State, Func, Fut>(
init: State,
func: Func,
) -> AsyncIteratorTransportRead<State, Func, Fut>
where
Func: FnMut(State) -> Fut,
Fut: Future<Output = Result<Option<(Payload, State)>, WispError>>,
{
AsyncIteratorTransportRead {
func,
state: IteratorState::Value(init),
}
}
pub fn async_iterator_transport_write<State, Func, Fut, CloseState, CloseFunc, CloseFut>(
init: State,
func: Func,
close_init: CloseState,
close_func: CloseFunc,
) -> AsyncIteratorTransportWrite<State, Func, Fut, CloseState, CloseFunc, CloseFut>
where
Func: FnMut(State, Payload) -> Fut,
Fut: Future<Output = Result<State, WispError>>,
CloseFunc: FnMut(CloseState) -> CloseFut,
CloseFut: Future<Output = Result<(), WispError>>,
{
AsyncIteratorTransportWrite {
func,
state: IteratorState::Value(init),
close: close_func,
close_state: IteratorState::Value(close_init),
}
}
#[pin_project(project = IteratorStateProj, project_replace = IteratorStateProjReplace)]
enum IteratorState<S, Fut> {
Value(S),
Future(#[pin] Fut),
Empty,
}
impl<S, Fut> IteratorState<S, Fut> {
pub fn take_state(self: Pin<&mut Self>) -> Option<S> {
match &*self {
Self::Value { .. } => match self.project_replace(Self::Empty) {
IteratorStateProjReplace::Value(value) => Some(value),
_ => unreachable!(),
},
_ => None,
}
}
pub fn get_future(self: Pin<&mut Self>) -> Option<Pin<&mut Fut>> {
match self.project() {
IteratorStateProj::Future(future) => Some(future),
_ => None,
}
}
}
#[pin_project]
pub struct AsyncIteratorTransportRead<State, Func, Fut>
where
Func: FnMut(State) -> Fut,
Fut: Future<Output = Result<Option<(Payload, State)>, WispError>>,
{
func: Func,
#[pin]
state: IteratorState<State, Fut>,
}
impl<State, Func, Fut> Stream for AsyncIteratorTransportRead<State, Func, Fut>
where
Func: FnMut(State) -> Fut,
Fut: Future<Output = Result<Option<(Payload, State)>, WispError>>,
{
type Item = Result<Payload, WispError>;
fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Option<Self::Item>> {
let mut this = self.project();
if let Some(state) = this.state.as_mut().take_state() {
this.state.set(IteratorState::Future((this.func)(state)));
}
let ret = match this.state.as_mut().get_future() {
Some(fut) => ready!(fut.poll(cx)),
None => panic!("AsyncIteratorTransportRead was polled after completion"),
};
match ret {
Ok(Some((ret, state))) => {
this.state.set(IteratorState::Value(state));
Poll::Ready(Some(Ok(ret)))
}
Ok(None) => Poll::Ready(None),
Err(err) => Poll::Ready(Some(Err(err))),
}
}
}
#[pin_project]
pub struct AsyncIteratorTransportWrite<State, Func, Fut, CloseState, CloseFunc, CloseFut>
where
Func: FnMut(State, Payload) -> Fut,
Fut: Future<Output = Result<State, WispError>>,
CloseFunc: FnMut(CloseState) -> CloseFut,
CloseFut: Future<Output = Result<(), WispError>>,
{
func: Func,
#[pin]
state: IteratorState<State, Fut>,
close: CloseFunc,
#[pin]
close_state: IteratorState<CloseState, CloseFut>,
}
impl<State, Func, Fut, CloseState, CloseFunc, CloseFut> Sink<Payload>
for AsyncIteratorTransportWrite<State, Func, Fut, CloseState, CloseFunc, CloseFut>
where
Func: FnMut(State, Payload) -> Fut,
Fut: Future<Output = Result<State, WispError>>,
CloseFunc: FnMut(CloseState) -> CloseFut,
CloseFut: Future<Output = Result<(), WispError>>,
{
type Error = WispError;
fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
self.poll_flush(cx)
}
fn start_send(self: Pin<&mut Self>, item: Payload) -> Result<(), Self::Error> {
let mut this = self.project();
let fut = match this.state.as_mut().take_state() {
Some(state) => (this.func)(state, item),
None => panic!("start_send called on AsyncIteratorTransportWrite without poll_ready being called first"),
};
this.state.set(IteratorState::Future(fut));
Ok(())
}
fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
let mut this = self.project();
Poll::Ready(if let Some(future) = this.state.as_mut().get_future() {
match ready!(future.poll(cx)) {
Ok(state) => {
this.state.set(IteratorState::Value(state));
Ok(())
}
Err(err) => {
this.state.set(IteratorState::Empty);
Err(err)
}
}
} else {
Ok(())
})
}
fn poll_close(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
ready!(self.as_mut().poll_flush(cx))?;
let mut this = self.project();
if let Some(future) = this.close_state.as_mut().get_future() {
let ret = ready!(future.poll(cx));
this.close_state.set(IteratorState::Empty);
Poll::Ready(ret)
} else {
let future = match this.close_state.as_mut().take_state() {
Some(value) => (this.close)(value),
None => {
panic!("poll_close called on AsyncIteratorTransportWrite after it finished")
}
};
this.close_state.set(IteratorState::Future(future));
Poll::Pending
}
}
}