mirror of
https://github.com/qemus/qemu-docker.git
synced 2025-10-05 23:36:55 +08:00
137 lines
3.0 KiB
JavaScript
137 lines
3.0 KiB
JavaScript
var request;
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var interval = 1000;
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var webSocketFactory = {
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connect: function(url) {
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var ws = new WebSocket(url);
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ws.addEventListener("open", e => {
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ws.close();
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document.location.reload();
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});
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ws.addEventListener("error", e => {
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if (e.target.readyState === 3) {
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setTimeout(() => this.connect(url), 1000);
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}
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});
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}
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};
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function getInfo() {
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var url = "msg.html";
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try {
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if (window.XMLHttpRequest) {
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request = new XMLHttpRequest();
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} else {
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throw "XMLHttpRequest not available!";
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}
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request.onreadystatechange = processInfo;
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request.open("GET", url, true);
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request.send();
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} catch (e) {
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var err = "Error: " + e.message;
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console.log(err);
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setError(err);
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}
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}
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function processInfo() {
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try {
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if (request.readyState != 4) {
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return true;
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}
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var msg = request.responseText;
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if (msg == null || msg.length == 0) {
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setError("Lost connection");
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schedule();
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return false;
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}
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var notFound = (request.status == 404);
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if (request.status == 200) {
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if (msg.toLowerCase().indexOf("<html>") !== -1) {
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notFound = true;
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} else {
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setInfo(msg);
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schedule();
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return true;
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}
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}
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if (notFound) {
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setInfo("Connecting to VNC", true);
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var protocol = window.location.protocol === "https:" ? "wss:" : "ws:";
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var path = window.location.pathname.replace(/[^/]*$/, '').replace(/\/$/, '');
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var wsUrl = protocol + "//" + window.location.host + path + "/websockify";
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var webSocket = webSocketFactory.connect(wsUrl);
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return true;
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}
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setError("Error: Received statuscode " + request.status);
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schedule();
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return false;
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} catch (e) {
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var err = "Error: " + e.message;
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console.log(err);
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setError(err);
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return false;
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}
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}
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function setInfo(msg, loading, error) {
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try {
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if (msg == null || msg.length == 0) {
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return false;
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}
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var el = document.getElementById("spinner");
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error = !!error;
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if (!error) {
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el.style.visibility = 'visible';
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} else {
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el.style.visibility = 'hidden';
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}
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loading = !!loading;
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if (loading) {
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msg = "<p class=\"loading\">" + msg + "</p>";
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}
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el = document.getElementById("info");
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if (el.innerHTML != msg) {
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el.innerHTML = msg;
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}
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return true;
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} catch (e) {
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console.log("Error: " + e.message);
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return false;
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}
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}
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function setError(text) {
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return setInfo(text, false, true);
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}
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function schedule() {
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setTimeout(getInfo, interval);
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}
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schedule();
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