remove websocket support

Cargo.lock

@@ -689,7 +689,6 @@ dependencies = [
  "async-trait",
  "bytes",
  "cfg-if",
- "event-listener",
  "fastwebsockets",
  "flume",
  "futures-rustls",

client/Cargo.toml

@@ -11,7 +11,6 @@ async-compression = { version = "0.4.12", features = ["futures-io", "gzip", "bro
 async-trait = "0.1.81"
 bytes = "1.7.1"
 cfg-if = "1.0.0"
-event-listener = "5.3.1"
 fastwebsockets = { version = "0.8.0", features = ["unstable-split"], optional = true }
 flume = "0.11.0"
 futures-rustls = { version = "0.26.0", default-features = false, features = ["tls12", "ring"] }
@@ -30,7 +29,7 @@ tokio = "1.39.3"
 wasm-bindgen = "0.2.93"
 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", "WebSocket"] }
+web-sys = { version = "0.3.70", features = ["Headers", "Request", "RequestInit", "Response", "ResponseInit"] }
 webpki-roots = "0.26.3"
 wisp-mux = { path = "../wisp", features = ["wasm"], version = "5.1.0", default-features = false }
 

client/src/lib.rs

@@ -26,9 +26,9 @@ use send_wrapper::SendWrapper;
 use stream_provider::{StreamProvider, StreamProviderService};
 use thiserror::Error;
 use utils::{
-	asyncread_to_readablestream_stream, convert_body, entries_of_object, from_entries,
-	is_null_body, is_redirect, object_get, object_set, object_truthy, IncomingBody, UriExt,
-	WasmExecutor, WispTransportRead, WispTransportWrite,
+	asyncread_to_readablestream_stream, bind_ws_connect, convert_body, entries_of_object,
+	from_entries, is_null_body, is_redirect, object_get, object_set, object_truthy, IncomingBody,
+	UriExt, WasmExecutor, WispTransportRead, WispTransportWrite,
 };
 use wasm_bindgen::prelude::*;
 use wasm_bindgen_futures::JsFuture;
@@ -274,6 +274,53 @@ impl EpoxyHandlers {
 	}
 }
 
+fn get_stream_provider(
+	func: Function,
+	options: &EpoxyClientOptions,
+) -> Result<StreamProvider, EpoxyError> {
+	let wisp_transport = SendWrapper::new(func);
+	StreamProvider::new(
+		Box::new(move || {
+			let wisp_transport = wisp_transport.clone();
+			Box::pin(SendWrapper::new(async move {
+				let transport = wisp_transport
+					.call0(&JsValue::NULL)
+					.map_err(EpoxyError::wisp_transport)?;
+
+				let transport = match transport.dyn_into::<Promise>() {
+					Ok(transport) => {
+						let fut = JsFuture::from(transport);
+						fut.await.map_err(EpoxyError::wisp_transport)?
+					}
+					Err(transport) => transport,
+				}
+				.into();
+
+				let read = WispTransportRead {
+					inner: SendWrapper::new(
+						wasm_streams::ReadableStream::from_raw(
+							object_get(&transport, "read").into(),
+						)
+						.into_stream(),
+					),
+				};
+				let write: WritableStream = object_get(&transport, "write").into();
+				let write = WispTransportWrite {
+					inner: SendWrapper::new(
+						write.get_writer().map_err(EpoxyError::wisp_transport)?,
+					),
+				};
+
+				Ok((
+					Box::new(read) as Box<dyn WebSocketRead + Send>,
+					Box::new(write) as Box<dyn WebSocketWrite + Send>,
+				))
+			}))
+		}),
+		&options,
+	)
+}
+
 #[wasm_bindgen(inspectable)]
 pub struct EpoxyClient {
 	stream_provider: Arc<StreamProvider>,
@@ -295,68 +342,13 @@ impl EpoxyClient {
 			if wisp_uri.scheme_str() != Some("wss") && wisp_uri.scheme_str() != Some("ws") {
 				return Err(EpoxyError::InvalidUrlScheme);
 			}
-
 			let ws_protocols = options.websocket_protocols.clone();
-			Arc::new(StreamProvider::new(
-				Box::new(move || {
-					let wisp_url = wisp_url.clone();
-					let ws_protocols = ws_protocols.clone();
-
-					Box::pin(async move {
-						let (write, read) = WebSocketWrapper::connect(&wisp_url, &ws_protocols)?;
-						if !write.wait_for_open().await {
-							return Err(EpoxyError::WebSocketConnectFailed);
-						}
-						Ok((
-							Box::new(read) as Box<dyn WebSocketRead + Send>,
-							Box::new(write) as Box<dyn WebSocketWrite + Send>,
-						))
-					})
-				}),
+			Arc::new(get_stream_provider(
+				bind_ws_connect(wisp_url, ws_protocols),
 				&options,
 			)?)
 		} else if let Ok(wisp_transport) = wisp_url.dyn_into::<Function>() {
-			let wisp_transport = SendWrapper::new(wisp_transport);
-			Arc::new(StreamProvider::new(
-				Box::new(move || {
-					let wisp_transport = wisp_transport.clone();
-					Box::pin(SendWrapper::new(async move {
-						let transport = wisp_transport
-							.call0(&JsValue::NULL)
-							.map_err(EpoxyError::wisp_transport)?;
-
-						let transport = match transport.dyn_into::<Promise>() {
-							Ok(transport) => {
-								let fut = JsFuture::from(transport);
-								fut.await.map_err(EpoxyError::wisp_transport)?
-							}
-							Err(transport) => transport,
-						}
-						.into();
-
-						let read = WispTransportRead {
-							inner: SendWrapper::new(
-								wasm_streams::ReadableStream::from_raw(
-									object_get(&transport, "read").into(),
-								)
-								.into_stream(),
-							),
-						};
-						let write: WritableStream = object_get(&transport, "write").into();
-						let write = WispTransportWrite {
-							inner: SendWrapper::new(
-								write.get_writer().map_err(EpoxyError::wisp_transport)?,
-							),
-						};
-
-						Ok((
-							Box::new(read) as Box<dyn WebSocketRead + Send>,
-							Box::new(write) as Box<dyn WebSocketWrite + Send>,
-						))
-					}))
-				}),
-				&options,
-			)?)
+			Arc::new(get_stream_provider(wisp_transport, &options)?)
 		} else {
 			return Err(EpoxyError::InvalidWispTransport);
 		};

client/src/utils.rs

@@ -18,7 +18,7 @@ use futures_rustls::{
 use futures_util::{ready, AsyncRead, AsyncWrite, Future, Stream, StreamExt, TryStreamExt};
 use http::{HeaderValue, Uri};
 use hyper::{body::Body, rt::Executor};
-use js_sys::{Array, ArrayBuffer, JsString, Object, Uint8Array};
+use js_sys::{Array, ArrayBuffer, Function, JsString, Object, Uint8Array};
 use pin_project_lite::pin_project;
 use rustls_pki_types::{CertificateDer, ServerName, UnixTime};
 use send_wrapper::SendWrapper;
@@ -372,6 +372,55 @@ pub fn is_null_body(code: u16) -> bool {
 }
 
 #[wasm_bindgen(inline_js = r#"
+class WebSocketStreamPonyfill {
+    url;
+    opened;
+    closed;
+    close;
+    constructor(url, options = {}) {
+        if (options.signal?.aborted) {
+            throw new DOMException('This operation was aborted', 'AbortError');
+        }
+        this.url = url;
+        const ws = new WebSocket(url, options.protocols ?? []);
+		ws.binaryType = "arrayBuffer";
+        const closeWithInfo = ({ closeCode: code, reason } = {}) => ws.close(code, reason);
+        this.opened = new Promise((resolve, reject) => {
+            ws.onopen = () => {
+                resolve({
+                    readable: new ReadableStream({
+                        start(controller) {
+                            ws.onmessage = ({ data }) => controller.enqueue(data);
+                            ws.onerror = e => controller.error(e);
+                        },
+                        cancel: closeWithInfo,
+                    }),
+                    writable: new WritableStream({
+                        write(chunk) { ws.send(chunk); },
+                        abort() { ws.close(); },
+                        close: closeWithInfo,
+                    }),
+                    protocol: ws.protocol,
+                    extensions: ws.extensions,
+                });
+                ws.removeEventListener('error', reject);
+            };
+            ws.addEventListener('error', reject);
+        });
+        this.closed = new Promise((resolve, reject) => {
+            ws.onclose = ({ code, reason }) => {
+                resolve({ closeCode: code, reason });
+                ws.removeEventListener('error', reject);
+            };
+            ws.addEventListener('error', reject);
+        });
+        if (options.signal) {
+            options.signal.onabort = () => ws.close();
+        }
+        this.close = closeWithInfo;
+    }
+}
+
 export function object_get(obj, k) { 
 	try {
 		return obj[k]
@@ -408,6 +457,16 @@ export function from_entries(entries){
     for(var i = 0; i < entries.length; i++) ret[entries[i][0]] = entries[i][1];
     return ret;
 }
+
+async function websocket_connect(url, protocols) {
+	let wss = new WebSocketStreamPonyfill(url, { protocols: protocols });
+	let {readable, writable} = await wss.opened;
+	return {read: readable, write: writable};
+}
+
+function bind_ws_connect(url, protocols) {
+	return websocket_connect.bind(undefined, url, protocols);
+}
 "#)]
 extern "C" {
 	pub fn object_get(obj: &Object, key: &str) -> JsValue;
@@ -422,6 +481,8 @@ extern "C" {
 
 	#[wasm_bindgen(catch)]
 	pub fn from_entries(iterable: &JsValue) -> Result<Object, JsValue>;
+
+	pub fn bind_ws_connect(url: String, protocols: Vec<String>) -> Function;
 }
 
 pub async fn convert_body(val: JsValue) -> Result<(Uint8Array, Option<String>), JsValue> {

client/src/ws_wrapper.rs

@@ -1,231 +0,0 @@
-use std::sync::{
-	atomic::{AtomicBool, Ordering},
-	Arc,
-};
-
-use async_trait::async_trait;
-use bytes::BytesMut;
-use event_listener::Event;
-use flume::Receiver;
-use futures_util::FutureExt;
-use js_sys::{Array, ArrayBuffer, Uint8Array};
-use send_wrapper::SendWrapper;
-use wasm_bindgen::{closure::Closure, JsCast};
-use web_sys::{BinaryType, MessageEvent, WebSocket};
-use wisp_mux::{
-	ws::{Frame, LockedWebSocketWrite, Payload, WebSocketRead, WebSocketWrite},
-	WispError,
-};
-
-use crate::EpoxyError;
-
-#[derive(Debug)]
-pub enum WebSocketError {
-	Unknown,
-	SendFailed,
-	CloseFailed,
-}
-
-impl std::fmt::Display for WebSocketError {
-	fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> Result<(), std::fmt::Error> {
-		use WebSocketError::*;
-		match self {
-			Unknown => write!(f, "Unknown error"),
-			SendFailed => write!(f, "Send failed"),
-			CloseFailed => write!(f, "Close failed"),
-		}
-	}
-}
-
-impl std::error::Error for WebSocketError {}
-
-impl From<WebSocketError> for WispError {
-	fn from(err: WebSocketError) -> Self {
-		Self::WsImplError(Box::new(err))
-	}
-}
-
-pub enum WebSocketMessage {
-	Closed,
-	Error,
-	Message(Vec<u8>),
-}
-
-pub struct WebSocketWrapper {
-	inner: SendWrapper<WebSocket>,
-	open_event: Arc<Event>,
-	error_event: Arc<Event>,
-	close_event: Arc<Event>,
-	closed: Arc<AtomicBool>,
-
-	// used to retain the closures
-	#[allow(dead_code)]
-	onopen: SendWrapper<Closure<dyn Fn()>>,
-	#[allow(dead_code)]
-	onclose: SendWrapper<Closure<dyn Fn()>>,
-	#[allow(dead_code)]
-	onerror: SendWrapper<Closure<dyn Fn()>>,
-	#[allow(dead_code)]
-	onmessage: SendWrapper<Closure<dyn Fn(MessageEvent)>>,
-}
-
-pub struct WebSocketReader {
-	read_rx: Receiver<WebSocketMessage>,
-	closed: Arc<AtomicBool>,
-	close_event: Arc<Event>,
-}
-
-#[async_trait]
-impl WebSocketRead for WebSocketReader {
-	async fn wisp_read_frame(
-		&mut self,
-		_: &LockedWebSocketWrite,
-	) -> Result<Frame<'static>, WispError> {
-		use WebSocketMessage::*;
-		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(Closed),
-		};
-		match res.ok_or(WispError::WsImplSocketClosed)? {
-			Message(bin) => Ok(Frame::binary(Payload::Bytes(BytesMut::from(
-				bin.as_slice(),
-			)))),
-			Error => Err(WebSocketError::Unknown.into()),
-			Closed => Err(WispError::WsImplSocketClosed),
-		}
-	}
-}
-
-impl WebSocketWrapper {
-	pub fn connect(url: &str, protocols: &[String]) -> Result<(Self, WebSocketReader), EpoxyError> {
-		let (read_tx, read_rx) = flume::unbounded();
-		let closed = Arc::new(AtomicBool::new(false));
-
-		let open_event = Arc::new(Event::new());
-		let close_event = Arc::new(Event::new());
-		let error_event = Arc::new(Event::new());
-
-		let onopen_event = open_event.clone();
-		let onopen = Closure::wrap(
-			Box::new(move || while onopen_event.notify(usize::MAX) == 0 {}) as Box<dyn Fn()>,
-		);
-
-		let onmessage_tx = read_tx.clone();
-		let onmessage = Closure::wrap(Box::new(move |evt: MessageEvent| {
-			if let Ok(arr) = evt.data().dyn_into::<ArrayBuffer>() {
-				let _ =
-					onmessage_tx.send(WebSocketMessage::Message(Uint8Array::new(&arr).to_vec()));
-			}
-		}) as Box<dyn Fn(MessageEvent)>);
-
-		let onclose_closed = closed.clone();
-		let onclose_event = close_event.clone();
-		let onclose = Closure::wrap(Box::new(move || {
-			onclose_closed.store(true, Ordering::Release);
-			onclose_event.notify(usize::MAX);
-		}) as Box<dyn Fn()>);
-
-		let onerror_tx = read_tx.clone();
-		let onerror_closed = closed.clone();
-		let onerror_close = close_event.clone();
-		let onerror_event = error_event.clone();
-		let onerror = Closure::wrap(Box::new(move || {
-			let _ = onerror_tx.send(WebSocketMessage::Error);
-			onerror_closed.store(true, Ordering::Release);
-			onerror_close.notify(usize::MAX);
-			onerror_event.notify(usize::MAX);
-		}) as Box<dyn Fn()>);
-
-		let ws = if protocols.is_empty() {
-			WebSocket::new(url)
-		} else {
-			WebSocket::new_with_str_sequence(
-				url,
-				&protocols
-					.iter()
-					.fold(Array::new(), |acc, x| {
-						acc.push(&x.into());
-						acc
-					})
-					.into(),
-			)
-		}
-		.map_err(|_| EpoxyError::WebSocketConnectFailed)?;
-		ws.set_binary_type(BinaryType::Arraybuffer);
-		ws.set_onmessage(Some(onmessage.as_ref().unchecked_ref()));
-		ws.set_onopen(Some(onopen.as_ref().unchecked_ref()));
-		ws.set_onclose(Some(onclose.as_ref().unchecked_ref()));
-		ws.set_onerror(Some(onerror.as_ref().unchecked_ref()));
-
-		Ok((
-			Self {
-				inner: SendWrapper::new(ws),
-				open_event,
-				error_event,
-				close_event: close_event.clone(),
-				closed: closed.clone(),
-				onopen: SendWrapper::new(onopen),
-				onclose: SendWrapper::new(onclose),
-				onerror: SendWrapper::new(onerror),
-				onmessage: SendWrapper::new(onmessage),
-			},
-			WebSocketReader {
-				read_rx,
-				closed,
-				close_event,
-			},
-		))
-	}
-
-	pub async fn wait_for_open(&self) -> bool {
-		if self.closed.load(Ordering::Acquire) {
-			return false;
-		}
-		futures_util::select! {
-			_ = self.open_event.listen().fuse() => true,
-			_ = self.error_event.listen().fuse() => false,
-		}
-	}
-}
-
-#[async_trait]
-impl WebSocketWrite for WebSocketWrapper {
-	async fn wisp_write_frame(&mut self, frame: Frame<'_>) -> Result<(), WispError> {
-		use wisp_mux::ws::OpCode::*;
-		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(|_| WebSocketError::SendFailed.into()),
-			Close => {
-				let _ = self.inner.close();
-				Ok(())
-			}
-			_ => Err(WispError::WsImplNotSupported),
-		}
-	}
-
-	async fn wisp_close(&mut self) -> Result<(), WispError> {
-		self.inner
-			.close()
-			.map_err(|_| WebSocketError::CloseFailed.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();
-	}
-}