mirror of
https://github.com/XTLS/Xray-core.git
synced 2026-07-03 02:08:45 +00:00
XHTTP transport: Bugfixes for obfuscations (#5720)
https://github.com/XTLS/Xray-core/pull/5720#issuecomment-4016290343
This commit is contained in:
26X23
@@ -2,6 +2,7 @@
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<html>
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<head>
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<title>Browser Dialer</title>
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<link rel="icon" href="data:">
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</head>
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<body>
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<script>
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@@ -29,9 +30,37 @@
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requestInit.headers = extra.headers;
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}
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if (extra.cookies) {
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requestInit.credentials = 'include';
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}
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return requestInit;
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}
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function setCookiesFromTask(task) {
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if (!task.extra.cookies) {
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return;
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}
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const url = new URL(task.url);
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for (const [name, value] of Object.entries(task.extra.cookies)) {
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document.cookie = encodeURIComponent(name) + '=' + encodeURIComponent(value) + '; path=' + url.pathname;
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}
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}
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function clearCookiesFromTask(task) {
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if (!task.extra.cookies) {
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return;
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}
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const url = new URL(task.url);
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for (const [name, value] of Object.entries(task.extra.cookies)) {
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document.cookie = encodeURIComponent(name) + '=; path=' + url.pathname + '; Max-Age=0';
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}
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}
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let check = function () {
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if (clientIdleCount > 0) {
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return;
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@@ -48,116 +77,121 @@
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ws.onmessage = function (event) {
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clientIdleCount -= 1;
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let task = JSON.parse(event.data);
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switch (task.method) {
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case "WS": {
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upstreamWsCount += 1;
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console.log("Dial WS", task.url, task.extra.protocol);
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const wss = new WebSocket(task.url, task.extra.protocol);
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wss.binaryType = "arraybuffer";
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let opened = false;
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ws.onmessage = function (event) {
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wss.send(event.data)
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};
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wss.onopen = function (event) {
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opened = true;
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ws.send("ok")
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};
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wss.onmessage = function (event) {
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ws.send(event.data)
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};
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wss.onclose = function (event) {
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upstreamWsCount -= 1;
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console.log("Dial WS DONE, remaining: ", upstreamWsCount);
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ws.close()
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};
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wss.onerror = function (event) {
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!opened && ws.send("fail")
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wss.close()
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};
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ws.onclose = function (event) {
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wss.close()
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};
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break;
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}
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case "GET": {
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(async () => {
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const requestInit = prepareRequestInit(task.extra);
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console.log("Dial GET", task.url);
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ws.send("ok");
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const controller = new AbortController();
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/*
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Aborting a streaming response in JavaScript
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requires two levers to be pulled:
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First, the streaming read itself has to be cancelled using
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reader.cancel(), only then controller.abort() will actually work.
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If controller.abort() alone is called while a
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reader.read() is ongoing, it will block until the server closes the
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response, the page is refreshed or the network connection is lost.
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*/
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let reader = null;
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ws.onclose = (event) => {
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try {
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reader && reader.cancel();
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} catch(e) {}
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try {
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controller.abort();
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} catch(e) {}
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};
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try {
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upstreamGetCount += 1;
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requestInit.signal = controller.signal;
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const response = await fetch(task.url, requestInit);
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const body = await response.body;
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reader = body.getReader();
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while (true) {
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const { done, value } = await reader.read();
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if (value) ws.send(value); // don't send back "undefined" string when received nothing
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if (done) break;
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}
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} finally {
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upstreamGetCount -= 1;
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console.log("Dial GET DONE, remaining: ", upstreamGetCount);
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ws.close();
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}
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})();
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break;
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}
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case "POST": {
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upstreamPostCount += 1;
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if (task.method == "WS") {
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upstreamWsCount += 1;
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console.log("Dial WS", task.url, task.extra.protocol);
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const wss = new WebSocket(task.url, task.extra.protocol);
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wss.binaryType = "arraybuffer";
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let opened = false;
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ws.onmessage = function (event) {
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wss.send(event.data)
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};
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wss.onopen = function (event) {
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opened = true;
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ws.send("ok")
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};
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wss.onmessage = function (event) {
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ws.send(event.data)
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};
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wss.onclose = function (event) {
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upstreamWsCount -= 1;
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console.log("Dial WS DONE, remaining: ", upstreamWsCount);
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ws.close()
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};
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wss.onerror = function (event) {
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!opened && ws.send("fail")
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wss.close()
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};
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ws.onclose = function (event) {
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wss.close()
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};
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}
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else if (task.method == "GET" && task.streamResponse) {
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(async () => {
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const requestInit = prepareRequestInit(task.extra);
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requestInit.method = "POST";
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console.log("Dial POST", task.url);
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console.log("Dial GET", task.url);
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ws.send("ok");
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ws.onmessage = async (event) => {
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const controller = new AbortController();
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/*
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Aborting a streaming response in JavaScript
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requires two levers to be pulled:
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First, the streaming read itself has to be cancelled using
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reader.cancel(), only then controller.abort() will actually work.
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If controller.abort() alone is called while a
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reader.read() is ongoing, it will block until the server closes the
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response, the page is refreshed or the network connection is lost.
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*/
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let reader = null;
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ws.onclose = (event) => {
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try {
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requestInit.body = event.data;
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const response = await fetch(task.url, requestInit);
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if (response.ok) {
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ws.send("ok");
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} else {
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console.error("bad status code");
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ws.send("fail");
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}
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} finally {
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upstreamPostCount -= 1;
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console.log("Dial POST DONE, remaining: ", upstreamPostCount);
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ws.close();
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}
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reader && reader.cancel();
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} catch(e) {}
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try {
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controller.abort();
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} catch(e) {}
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};
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break;
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}
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try {
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upstreamGetCount += 1;
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requestInit.signal = controller.signal;
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setCookiesFromTask(task);
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const response = await fetch(task.url, requestInit);
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clearCookiesFromTask(task);
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const body = await response.body;
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reader = body.getReader();
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while (true) {
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const { done, value } = await reader.read();
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if (value) ws.send(value); // don't send back "undefined" string when received nothing
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if (done) break;
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}
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} finally {
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upstreamGetCount -= 1;
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console.log("Dial GET DONE, remaining: ", upstreamGetCount);
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ws.close();
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}
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})();
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}
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else if (!task.streamResponse) {
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upstreamPostCount += 1;
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const requestInit = prepareRequestInit(task.extra);
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requestInit.method = task.method;
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console.log("Dial", task.method, task.url);
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ws.send("ok");
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ws.onmessage = async (event) => {
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try {
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if (event.data.byteLength > 0) {
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requestInit.body = event.data;
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}
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setCookiesFromTask(task);
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const response = await fetch(task.url, requestInit);
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clearCookiesFromTask(task);
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if (response.ok) {
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ws.send("ok");
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} else {
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console.error("bad status code");
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ws.send("fail");
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}
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} finally {
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upstreamPostCount -= 1;
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console.log("Dial", task.method, "packet DONE, remaining: ", upstreamPostCount);
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ws.close();
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}
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};
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}
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else {
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console.error(`Incorrect task method=${task.method} streamResponse=${task.streamResponse}.`);
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ws.close();
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}
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check();
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