122 lines
4.7 KiB
JavaScript
122 lines
4.7 KiB
JavaScript
/**
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* @description Mesh Agent Transport Module - using websocket relay
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* @author Ylian Saint-Hilaire
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* @version v0.0.1f
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*/
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// Construct a MeshServer agent direction object
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var CreateAgentRedirect = function (meshserver, module, serverPublicNamePort) {
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var obj = {};
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obj.m = module; // This is the inner module (Terminal or Desktop)
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module.parent = obj;
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obj.meshserver = meshserver;
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obj.nodeid = null;
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obj.State = 0;
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obj.socket = null;
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obj.connectstate = -1;
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obj.tunnelid = Math.random().toString(36).substring(2); // Generate a random client tunnel id
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obj.protocol = module.protocol; // 1 = SOL, 2 = KVM, 3 = IDER, 4 = Files, 5 = FileTransfer
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obj.onStateChanged = null;
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// Private method
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//obj.debug = function (msg) { console.log(msg); }
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obj.Start = function (nodeid) {
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var url2, url = window.location.protocol.replace("http", "ws") + "//" + window.location.host + window.location.pathname.substring(0, window.location.pathname.lastIndexOf('/')) + "/meshrelay.ashx?id=" + obj.tunnelid;
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if (serverPublicNamePort) { url2 = window.location.protocol.replace("http", "ws") + "//" + serverPublicNamePort + "/meshrelay.ashx?id=" + obj.tunnelid; } else { url2 = url; }
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obj.nodeid = nodeid;
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obj.connectstate = 0;
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obj.socket = new WebSocket(url);
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obj.socket.onopen = obj.xxOnSocketConnected;
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obj.socket.onmessage = obj.xxOnMessage;
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obj.socket.onerror = function (e) { console.error(e); }
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obj.socket.onclose = obj.xxOnSocketClosed;
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obj.xxStateChange(1);
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obj.meshserver.Send({ action: 'msg', type: 'tunnel', nodeid: obj.nodeid, value: url2 });
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//obj.debug("Agent Redir Start: " + url);
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}
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obj.xxOnSocketConnected = function () {
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//obj.debug("Agent Redir Socket Connected");
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obj.xxStateChange(2);
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}
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obj.xxOnMessage = function (e) {
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if (obj.State < 3) { if (e.data == 'c') { obj.socket.send(obj.protocol); obj.xxStateChange(3); return; } }
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if (typeof e.data == 'object') {
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var f = new FileReader();
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if (f.readAsBinaryString) {
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// Chrome & Firefox (Draft)
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f.onload = function (e) { obj.xxOnSocketData(e.target.result); }
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f.readAsBinaryString(new Blob([e.data]));
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} else if (f.readAsArrayBuffer) {
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// Chrome & Firefox (Spec)
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f.onloadend = function (e) { obj.xxOnSocketData(e.target.result); }
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f.readAsArrayBuffer(e.data);
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} else {
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// IE10, readAsBinaryString does not exist, use an alternative.
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var binary = "";
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var bytes = new Uint8Array(e.data);
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var length = bytes.byteLength;
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for (var i = 0; i < length; i++) { binary += String.fromCharCode(bytes[i]); }
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obj.xxOnSocketData(binary);
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}
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} else {
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// If we get a string object, it maybe the WebRTC confirm. Ignore it.
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//obj.debug("Agent Redir Relay - OnData - " + typeof e.data + " - " + e.data.length);
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obj.xxOnSocketData(e.data);
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}
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};
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obj.xxOnSocketData = function (data) {
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if (!data || obj.connectstate == -1) return;
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if (typeof data === 'object') {
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// This is an ArrayBuffer, convert it to a string array (used in IE)
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var binary = "", bytes = new Uint8Array(data), length = bytes.byteLength;
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for (var i = 0; i < length; i++) { binary += String.fromCharCode(bytes[i]); }
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data = binary;
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}
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else if (typeof data !== 'string') return;
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//console.log("xxOnSocketData", rstr2hex(data));
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return obj.m.ProcessData(data);
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}
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obj.Send = function (x) {
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//obj.debug("Agent Redir Send(" + x.length + "): " + rstr2hex(x));
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if (obj.socket != null && obj.socket.readyState == WebSocket.OPEN) {
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if (typeof x == 'string') {
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var b = new Uint8Array(x.length);
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for (var i = 0; i < x.length; ++i) { b[i] = x.charCodeAt(i); }
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obj.socket.send(b.buffer);
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} else {
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obj.socket.send(x);
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}
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}
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}
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obj.xxOnSocketClosed = function () {
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//obj.debug("Agent Redir Socket Closed");
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obj.Stop();
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}
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obj.xxStateChange = function(newstate) {
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if (obj.State == newstate) return;
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obj.State = newstate;
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obj.m.xxStateChange(obj.State);
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if (obj.onStateChanged != null) obj.onStateChanged(obj, obj.State);
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}
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obj.Stop = function () {
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//obj.debug("Agent Redir Socket Stopped");
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obj.xxStateChange(0);
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obj.connectstate = -1;
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if (obj.socket != null) { obj.socket.close(); obj.socket = null; }
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}
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return obj;
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}
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