mirror of
https://github.com/XTLS/Xray-core.git
synced 2024-11-28 03:21:27 +00:00
8c180b9cfd
https://github.com/XTLS/Xray-core/issues/3882#issuecomment-2396167708 This does not fix the linked issue, just a random bug I found.
149 lines
3.8 KiB
HTML
149 lines
3.8 KiB
HTML
<!DOCTYPE html>
|
|
<html>
|
|
<head>
|
|
<title>Browser Dialer</title>
|
|
</head>
|
|
<body>
|
|
<script>
|
|
"use strict";
|
|
// Enable a much more aggressive JIT for performance gains
|
|
|
|
// Copyright (c) 2021 XRAY. Mozilla Public License 2.0.
|
|
let url = "ws://" + window.location.host + "/websocket?token=csrfToken";
|
|
let clientIdleCount = 0;
|
|
let upstreamGetCount = 0;
|
|
let upstreamWsCount = 0;
|
|
let upstreamPostCount = 0;
|
|
let check = function () {
|
|
if (clientIdleCount > 0) {
|
|
return;
|
|
};
|
|
clientIdleCount += 1;
|
|
console.log("Prepare", url);
|
|
let ws = new WebSocket(url);
|
|
// arraybuffer is significantly faster in chrome than default
|
|
// blob, tested with chrome 123
|
|
ws.binaryType = "arraybuffer";
|
|
// note: this event listener is later overwritten after the
|
|
// handshake has completed. do not attempt to modernize it without
|
|
// double-checking that this continues to work
|
|
ws.onmessage = function (event) {
|
|
clientIdleCount -= 1;
|
|
let [method, url, protocol] = event.data.split(" ");
|
|
switch (method) {
|
|
case "WS": {
|
|
upstreamWsCount += 1;
|
|
console.log("Dial WS", url, protocol);
|
|
const wss = new WebSocket(url, protocol);
|
|
wss.binaryType = "arraybuffer";
|
|
let opened = false;
|
|
ws.onmessage = function (event) {
|
|
wss.send(event.data)
|
|
};
|
|
wss.onopen = function (event) {
|
|
opened = true;
|
|
ws.send("ok")
|
|
};
|
|
wss.onmessage = function (event) {
|
|
ws.send(event.data)
|
|
};
|
|
wss.onclose = function (event) {
|
|
upstreamWsCount -= 1;
|
|
console.log("Dial WS DONE, remaining: ", upstreamWsCount);
|
|
ws.close()
|
|
};
|
|
wss.onerror = function (event) {
|
|
!opened && ws.send("fail")
|
|
wss.close()
|
|
};
|
|
ws.onclose = function (event) {
|
|
wss.close()
|
|
};
|
|
break;
|
|
};
|
|
case "GET": {
|
|
(async () => {
|
|
console.log("Dial GET", url);
|
|
ws.send("ok");
|
|
const controller = new AbortController();
|
|
|
|
/*
|
|
Aborting a streaming response in JavaScript
|
|
requires two levers to be pulled:
|
|
|
|
First, the streaming read itself has to be cancelled using
|
|
reader.cancel(), only then controller.abort() will actually work.
|
|
|
|
If controller.abort() alone is called while a
|
|
reader.read() is ongoing, it will block until the server closes the
|
|
response, the page is refreshed or the network connection is lost.
|
|
*/
|
|
|
|
let reader = null;
|
|
ws.onclose = (event) => {
|
|
try {
|
|
reader && reader.cancel();
|
|
} catch(e) {};
|
|
|
|
try {
|
|
controller.abort();
|
|
} catch(e) {};
|
|
};
|
|
|
|
try {
|
|
upstreamGetCount += 1;
|
|
const response = await fetch(url, {signal: controller.signal});
|
|
|
|
const body = await response.body;
|
|
reader = body.getReader();
|
|
|
|
while (true) {
|
|
const { done, value } = await reader.read();
|
|
ws.send(value);
|
|
if (done) break;
|
|
};
|
|
} finally {
|
|
upstreamGetCount -= 1;
|
|
console.log("Dial GET DONE, remaining: ", upstreamGetCount);
|
|
ws.close();
|
|
};
|
|
})();
|
|
break;
|
|
};
|
|
case "POST": {
|
|
upstreamPostCount += 1;
|
|
console.log("Dial POST", url);
|
|
ws.send("ok");
|
|
ws.onmessage = async (event) => {
|
|
try {
|
|
const response = await fetch(
|
|
url,
|
|
{method: "POST", body: event.data}
|
|
);
|
|
if (response.ok) {
|
|
ws.send("ok");
|
|
} else {
|
|
console.error("bad status code");
|
|
ws.send("fail");
|
|
};
|
|
} finally {
|
|
upstreamPostCount -= 1;
|
|
console.log("Dial POST DONE, remaining: ", upstreamPostCount);
|
|
ws.close();
|
|
};
|
|
};
|
|
break;
|
|
};
|
|
};
|
|
|
|
check();
|
|
};
|
|
ws.onerror = function (event) {
|
|
ws.close();
|
|
};
|
|
};
|
|
let checkTask = setInterval(check, 1000);
|
|
</script>
|
|
</body>
|
|
</html>
|