mirror of
https://github.com/Ylianst/MeshCentral.git
synced 2025-03-09 15:40:18 +00:00
Improved Intel AMT KVM rendering speed.
This commit is contained in:
Ylian Saint-Hilaire
parent
b42e73232f
commit
40abf105ab
2 changed files with 200 additions and 273 deletions
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@ -1,7 +1,7 @@
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/**
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* @description Intel AMT Redirection 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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* @version v2.0.0
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*/
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// Construct a MeshServer object
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@ -17,22 +17,19 @@ var CreateAmtRedirect = function (module, authCookie) {
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obj.port = 0;
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obj.user = null;
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obj.pass = null;
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obj.authuri = "/RedirectionService";
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obj.authuri = '/RedirectionService';
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obj.tlsv1only = 0;
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obj.inDataCount = 0;
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// ###END###{!Mode-Firmware}
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obj.connectstate = 0;
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obj.protocol = module.protocol; // 1 = SOL, 2 = KVM, 3 = IDER
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obj.debugmode = 0;
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obj.amtaccumulator = "";
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obj.acc = null;
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obj.amtsequence = 1;
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obj.amtkeepalivetimer = null;
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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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function arrToStr(arr) { return String.fromCharCode.apply(null, arr); }
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function randomHex(length) { var r = ''; for (var i = 0; i < length; i++) { r += 'abcdef0123456789'.charAt(Math.floor(Math.random() * 16)); } return r; }
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obj.Start = function (host, port, user, pass, tls) {
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obj.host = host;
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@ -41,9 +38,10 @@ var CreateAmtRedirect = function (module, authCookie) {
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obj.pass = pass;
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obj.connectstate = 0;
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obj.inDataCount = 0;
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var url = window.location.protocol.replace("http", "ws") + "//" + window.location.host + window.location.pathname.substring(0, window.location.pathname.lastIndexOf('/')) + "/webrelay.ashx?p=2&host=" + host + "&port=" + port + "&tls=" + tls + ((user == '*') ? "&serverauth=1" : "") + ((typeof pass === "undefined") ? ("&serverauth=1&user=" + user) : ""); // The "p=2" indicates to the relay that this is a REDIRECTION session
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var url = window.location.protocol.replace('http', 'ws') + '//' + window.location.host + window.location.pathname.substring(0, window.location.pathname.lastIndexOf('/')) + '/webrelay.ashx?p=2&host=' + host + '&port=' + port + '&tls=' + tls + ((user == '*') ? '&serverauth=1' : '') + ((typeof pass === 'undefined') ? ('&serverauth=1&user=' + user) : ''); // The 'p=2' indicates to the relay that this is a REDIRECTION session
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if ((authCookie != null) && (authCookie != '')) { url += '&auth=' + authCookie; }
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obj.socket = new WebSocket(url);
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obj.socket.binaryType = 'arraybuffer';
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obj.socket.onopen = obj.xxOnSocketConnected;
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obj.socket.onmessage = obj.xxOnMessage;
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obj.socket.onclose = obj.xxOnSocketClosed;
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@ -51,80 +49,44 @@ var CreateAmtRedirect = function (module, authCookie) {
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}
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obj.xxOnSocketConnected = function () {
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//obj.Debug("Redir Socket Connected");
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if (obj.debugmode == 1) { console.log('onSocketConnected'); }
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obj.xxStateChange(2);
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if (obj.protocol == 1) obj.xxSend(obj.RedirectStartSol); // TODO: Put these strings in higher level module to tighten code
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if (obj.protocol == 2) obj.xxSend(obj.RedirectStartKvm); // Don't need these is the feature is not compiled-in.
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if (obj.protocol == 3) obj.xxSend(obj.RedirectStartIder);
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}
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// Setup the file reader
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var fileReader = new FileReader();
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var fileReaderInuse = false, fileReaderAcc = [];
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if (fileReader.readAsBinaryString) {
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// Chrome & Firefox (Draft)
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fileReader.onload = function (e) { obj.xxOnSocketData(e.target.result); if (fileReaderAcc.length == 0) { fileReaderInuse = false; } else { fileReader.readAsBinaryString(new Blob([fileReaderAcc.shift()])); } }
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} else if (fileReader.readAsArrayBuffer) {
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// Chrome & Firefox (Spec)
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fileReader.onloadend = function (e) { obj.xxOnSocketData(e.target.result); if (fileReaderAcc.length == 0) { fileReaderInuse = false; } else { fileReader.readAsArrayBuffer(fileReaderAcc.shift()); } }
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if (obj.protocol == 1) obj.directSend(new Uint8Array([0x10, 0x00, 0x00, 0x00, 0x53, 0x4F, 0x4C, 0x20])); // SOL
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if (obj.protocol == 2) obj.directSend(new Uint8Array([0x10, 0x01, 0x00, 0x00, 0x4b, 0x56, 0x4d, 0x52])); // KVM
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if (obj.protocol == 3) obj.directSend(new Uint8Array([0x10, 0x00, 0x00, 0x00, 0x49, 0x44, 0x45, 0x52])); // IDER
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}
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obj.xxOnMessage = function (e) {
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//if (obj.debugmode == 1) { console.log('Recv', e.data); }
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if (!e.data || obj.connectstate == -1) return;
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obj.inDataCount++;
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if (typeof e.data == 'object') {
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if (fileReaderInuse == true) { fileReaderAcc.push(e.data); return; }
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if (fileReader.readAsBinaryString) {
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// Chrome & Firefox (Draft)
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fileReaderInuse = true;
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fileReader.readAsBinaryString(new Blob([e.data]));
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} else if (fileReader.readAsArrayBuffer) {
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// Chrome & Firefox (Spec)
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fileReaderInuse = true;
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fileReader.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 = "", bytes = new Uint8Array(e.data), 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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// KVM traffic, forward it directly.
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if ((obj.connectstate == 1) && ((obj.protocol == 2) || (obj.protocol == 3))) {
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return obj.m.ProcessBinaryData ? obj.m.ProcessBinaryData(e.data) : obj.m.ProcessData(arrToStr(e.data));
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}
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// Append to accumulator
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if (obj.acc == null) {
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obj.acc = e.data;
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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("MeshDataChannel - OnData - " + typeof e.data + " - " + e.data.length);
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obj.xxOnSocketData(e.data);
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var tmp = new Uint8Array(obj.acc.byteLength + e.data.byteLength);
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tmp.set(new Uint8Array(obj.acc), 0);
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tmp.set(new Uint8Array(e.data), obj.acc.byteLength);
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obj.acc = tmp.buffer;
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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 = "";
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var bytes = new Uint8Array(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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data = binary;
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}
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else if (typeof data !== 'string') { return; }
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if ((obj.protocol == 2 || obj.protocol == 3) && obj.connectstate == 1) { return obj.m.ProcessData(data); } // KVM traffic, forward it directly.
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obj.amtaccumulator += data;
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//obj.Debug("Redir Recv(" + obj.amtaccumulator.length + "): " + rstr2hex(obj.amtaccumulator));
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while (obj.amtaccumulator.length >= 1) {
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var cmdsize = 0;
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switch (obj.amtaccumulator.charCodeAt(0)) {
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//console.log('Redir Recv', obj.acc);
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while ((obj.acc != null) && (obj.acc.byteLength >= 1)) {
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var cmdsize = 0, accArray = new Uint8Array(obj.acc);
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switch (accArray[0]) {
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case 0x11: // StartRedirectionSessionReply (17)
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if (obj.amtaccumulator.length < 4) return;
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var statuscode = obj.amtaccumulator.charCodeAt(1);
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if (accArray.byteLength < 4) return;
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var statuscode = accArray[1];
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switch (statuscode) {
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case 0: // STATUS_SUCCESS
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if (obj.amtaccumulator.length < 13) return;
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var oemlen = obj.amtaccumulator.charCodeAt(12);
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if (obj.amtaccumulator.length < 13 + oemlen) return;
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// Query for available authentication
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obj.xxSend(String.fromCharCode(0x13, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00)); // Query authentication support
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if (accArray.byteLength < 13) return;
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var oemlen = accArray[12];
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if (accArray.byteLength < 13 + oemlen) return;
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obj.directSend(new Uint8Array([0x13, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00])); // Query for available authentication
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cmdsize = (13 + oemlen);
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break;
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default:
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@ -133,14 +95,12 @@ var CreateAmtRedirect = function (module, authCookie) {
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}
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break;
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case 0x14: // AuthenticateSessionReply (20)
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if (obj.amtaccumulator.length < 9) return;
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var authDataLen = ReadIntX(obj.amtaccumulator, 5);
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if (obj.amtaccumulator.length < 9 + authDataLen) return;
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var status = obj.amtaccumulator.charCodeAt(1);
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var authType = obj.amtaccumulator.charCodeAt(4);
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var authData = [];
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for (i = 0; i < authDataLen; i++) { authData.push(obj.amtaccumulator.charCodeAt(9 + i)); }
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var authDataBuf = obj.amtaccumulator.substring(9, 9 + authDataLen);
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if (accArray.byteLength < 9) return;
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var authDataLen = new DataView(obj.acc).getUint32(5, true);
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if (accArray.byteLength < 9 + authDataLen) return;
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var status = accArray[1], authType = accArray[4], authData = [];
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for (i = 0; i < authDataLen; i++) { authData.push(accArray[9 + i]); }
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var authDataBuf = accArray.slice(9, 9 + authDataLen);
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cmdsize = 9 + authDataLen;
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if (authType == 0) {
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// Query
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@ -157,65 +117,67 @@ var CreateAmtRedirect = function (module, authCookie) {
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obj.xxSend(String.fromCharCode(0x13, 0x00, 0x00, 0x00, 0x01) + IntToStrX(obj.user.length + obj.pass.length + 2) + String.fromCharCode(obj.user.length) + obj.user + String.fromCharCode(obj.pass.length) + obj.pass);
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}
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else obj.Stop(2);
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}
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else if ((authType == 3 || authType == 4) && status == 1) {
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} else if (((authType == 3) || (authType == 4)) && (status == 1)) {
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var curptr = 0;
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// Realm
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var realmlen = authDataBuf.charCodeAt(curptr);
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var realm = authDataBuf.substring(curptr + 1, curptr + 1 + realmlen);
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var realmlen = authDataBuf[curptr];
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var realm = arrToStr(authDataBuf.slice(curptr + 1, curptr + 1 + realmlen));
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curptr += (realmlen + 1);
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// Nonce
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var noncelen = authDataBuf.charCodeAt(curptr);
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var nonce = authDataBuf.substring(curptr + 1, curptr + 1 + noncelen);
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var noncelen = authDataBuf[curptr];
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var nonce = arrToStr(authDataBuf.slice(curptr + 1, curptr + 1 + noncelen));
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curptr += (noncelen + 1);
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// QOP
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var qoplen = 0;
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var qop = null;
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var cnonce = obj.xxRandomNonce(32);
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var cnonce = randomHex(32);
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var snc = '00000002';
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var extra = '';
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if (authType == 4) {
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qoplen = authDataBuf.charCodeAt(curptr);
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qop = authDataBuf.substring(curptr + 1, curptr + 1 + qoplen);
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qoplen = authDataBuf[curptr];
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qop = arrToStr(authDataBuf.slice(curptr + 1, curptr + 1 + qoplen));
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curptr += (qoplen + 1);
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extra = snc + ":" + cnonce + ":" + qop + ":";
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extra = snc + ':' + cnonce + ':' + qop + ':';
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}
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var digest = hex_md5(hex_md5(obj.user + ":" + realm + ":" + obj.pass) + ":" + nonce + ":" + extra + hex_md5("POST:" + obj.authuri));
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var digest = hex_md5(hex_md5(obj.user + ':' + realm + ':' + obj.pass) + ':' + nonce + ':' + extra + hex_md5('POST:' + obj.authuri));
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var totallen = obj.user.length + realm.length + nonce.length + obj.authuri.length + cnonce.length + snc.length + digest.length + 7;
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if (authType == 4) totallen += (qop.length + 1);
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var buf = String.fromCharCode(0x13, 0x00, 0x00, 0x00, authType) + IntToStrX(totallen) + String.fromCharCode(obj.user.length) + obj.user + String.fromCharCode(realm.length) + realm + String.fromCharCode(nonce.length) + nonce + String.fromCharCode(obj.authuri.length) + obj.authuri + String.fromCharCode(cnonce.length) + cnonce + String.fromCharCode(snc.length) + snc + String.fromCharCode(digest.length) + digest;
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if (authType == 4) buf += (String.fromCharCode(qop.length) + qop);
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obj.xxSend(buf);
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}
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else
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if (status == 0) { // Success
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if (obj.protocol == 1) {
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// Serial-over-LAN: Send Intel AMT serial settings...
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var MaxTxBuffer = 10000;
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var TxTimeout = 100;
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var TxOverflowTimeout = 0;
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var RxTimeout = 10000;
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var RxFlushTimeout = 100;
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var Heartbeat = 0;//5000;
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obj.xxSend(String.fromCharCode(0x20, 0x00, 0x00, 0x00) + IntToStrX(obj.amtsequence++) + ShortToStrX(MaxTxBuffer) + ShortToStrX(TxTimeout) + ShortToStrX(TxOverflowTimeout) + ShortToStrX(RxTimeout) + ShortToStrX(RxFlushTimeout) + ShortToStrX(Heartbeat) + IntToStrX(0));
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}
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if (obj.protocol == 2) {
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// Remote Desktop: Send traffic directly...
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obj.xxSend(String.fromCharCode(0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00));
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}
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if (obj.protocol == 3) {
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// Remote IDER: Send traffic directly...
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obj.connectstate = 1;
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obj.xxStateChange(3);
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} else if (status == 0) { // Success
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switch (obj.protocol) {
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case 1: {
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// Serial-over-LAN: Send Intel AMT serial settings...
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var MaxTxBuffer = 10000;
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var TxTimeout = 100;
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var TxOverflowTimeout = 0;
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var RxTimeout = 10000;
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var RxFlushTimeout = 100;
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var Heartbeat = 0;//5000;
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obj.xxSend(String.fromCharCode(0x20, 0x00, 0x00, 0x00) + IntToStrX(obj.amtsequence++) + ShortToStrX(MaxTxBuffer) + ShortToStrX(TxTimeout) + ShortToStrX(TxOverflowTimeout) + ShortToStrX(RxTimeout) + ShortToStrX(RxFlushTimeout) + ShortToStrX(Heartbeat) + IntToStrX(0));
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break;
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}
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case 2: {
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// Remote Desktop: Send traffic directly...
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obj.directSend(new Uint8Array([0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00]));
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break;
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}
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case 3: {
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// Remote IDER: Send traffic directly...
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obj.connectstate = 1;
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obj.xxStateChange(3);
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break;
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}
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}
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} else obj.Stop(3);
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break;
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case 0x21: // Response to settings (33)
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if (obj.amtaccumulator.length < 23) break;
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if (accArray.byteLength < 23) break;
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cmdsize = 23;
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obj.xxSend(String.fromCharCode(0x27, 0x00, 0x00, 0x00) + IntToStrX(obj.amtsequence++) + String.fromCharCode(0x00, 0x00, 0x1B, 0x00, 0x00, 0x00));
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if (obj.protocol == 1) { obj.amtkeepalivetimer = setInterval(obj.xxSendAmtKeepAlive, 2000); }
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@ -223,27 +185,27 @@ var CreateAmtRedirect = function (module, authCookie) {
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obj.xxStateChange(3);
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break;
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case 0x29: // Serial Settings (41)
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if (obj.amtaccumulator.length < 10) break;
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if (accArray.byteLength < 10) break;
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cmdsize = 10;
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break;
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case 0x2A: // Incoming display data (42)
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if (obj.amtaccumulator.length < 10) break;
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var cs = (10 + ((obj.amtaccumulator.charCodeAt(9) & 0xFF) << 8) + (obj.amtaccumulator.charCodeAt(8) & 0xFF));
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if (obj.amtaccumulator.length < cs) break;
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obj.m.ProcessData(obj.amtaccumulator.substring(10, cs));
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if (accArray.byteLength < 10) break;
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var cs = (10 + (accArray[9] << 8) + accArray[8]);
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if (accArray.byteLength < cs) break;
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if (obj.m.ProcessBinaryData) { obj.m.ProcessBinaryData(accArray.slice(10, cs)); } else { obj.m.ProcessData(arrToStr(accArray.slice(10, cs))); }
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cmdsize = cs;
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break;
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case 0x2B: // Keep alive message (43)
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if (obj.amtaccumulator.length < 8) break;
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if (accArray.byteLength < 8) break;
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cmdsize = 8;
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break;
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case 0x41:
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if (obj.amtaccumulator.length < 8) break;
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if (accArray.byteLength < 8) break;
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obj.connectstate = 1;
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obj.m.Start();
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// KVM traffic, forward rest of accumulator directly.
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if (obj.amtaccumulator.length > 8) { obj.m.ProcessData(obj.amtaccumulator.substring(8)); }
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cmdsize = obj.amtaccumulator.length;
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if (accArray.byteLength > 8) { obj.m.ProcessData(accArray.slice(8)); }
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cmdsize = accArray.byteLength;
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break;
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case 0xF0:
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// console.log('Session is being recorded');
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@ -251,19 +213,19 @@ var CreateAmtRedirect = function (module, authCookie) {
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cmdsize = 1;
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break;
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default:
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console.log("Unknown Intel AMT command: " + obj.amtaccumulator.charCodeAt(0) + " acclen=" + obj.amtaccumulator.length);
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console.log('Unknown Intel AMT command: ' + accArray[0] + ' acclen=' + accArray.byteLength);
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obj.Stop(4);
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return;
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}
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if (cmdsize == 0) return;
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obj.amtaccumulator = obj.amtaccumulator.substring(cmdsize);
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if (cmdsize != obj.acc.byteLength) { obj.acc = obj.acc.slice(cmdsize); } else { obj.acc = null; }
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}
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}
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obj.directSend = function (arr) { try { obj.socket.send(arr.buffer); } catch (ex) { } }
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obj.xxSend = function (x) {
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//obj.Debug("Redir Send(" + x.length + "): " + rstr2hex(x));
|
||||
if (obj.socket != null && obj.socket.readyState == WebSocket.OPEN) {
|
||||
if (obj.debugmode == 1) { console.log('Send', x); }
|
||||
if ((obj.socket != null) && (obj.socket.readyState == WebSocket.OPEN)) {
|
||||
var b = new Uint8Array(x.length);
|
||||
for (var i = 0; i < x.length; ++i) { b[i] = x.charCodeAt(i); }
|
||||
try { obj.socket.send(b.buffer); } catch (ex) { }
|
||||
|
|
@ -275,24 +237,13 @@ var CreateAmtRedirect = function (module, authCookie) {
|
|||
if (obj.protocol == 1) { obj.xxSend(String.fromCharCode(0x28, 0x00, 0x00, 0x00) + IntToStrX(obj.amtsequence++) + ShortToStrX(x.length) + x); } else { obj.xxSend(x); }
|
||||
}
|
||||
|
||||
obj.xxSendAmtKeepAlive = function () {
|
||||
if (obj.socket == null) return;
|
||||
obj.xxSend(String.fromCharCode(0x2B, 0x00, 0x00, 0x00) + IntToStrX(obj.amtsequence++));
|
||||
}
|
||||
|
||||
obj.xxRandomNonceX = "abcdef0123456789";
|
||||
obj.xxRandomNonce = function (length) {
|
||||
var r = "";
|
||||
for (var i = 0; i < length; i++) { r += obj.xxRandomNonceX.charAt(Math.floor(Math.random() * obj.xxRandomNonceX.length)); }
|
||||
return r;
|
||||
}
|
||||
obj.xxSendAmtKeepAlive = function () { if (obj.socket != null) { obj.xxSend(String.fromCharCode(0x2B, 0x00, 0x00, 0x00) + IntToStrX(obj.amtsequence++)); } }
|
||||
|
||||
obj.xxOnSocketClosed = function () {
|
||||
if (obj.debugmode == 1) { console.log('onSocketClosed'); }
|
||||
//obj.Debug("Redir Socket Closed");
|
||||
if ((obj.inDataCount == 0) && (obj.tlsv1only == 0)) {
|
||||
obj.tlsv1only = 1;
|
||||
obj.socket = new WebSocket(window.location.protocol.replace("http", "ws") + "//" + window.location.host + window.location.pathname.substring(0, window.location.pathname.lastIndexOf('/')) + "/webrelay.ashx?p=2&host=" + obj.host + "&port=" + obj.port + "&tls=" + obj.tls + "&tls1only=1" + ((obj.user == '*') ? "&serverauth=1" : "") + ((typeof pass === "undefined") ? ("&serverauth=1&user=" + obj.user) : "")); // The "p=2" indicates to the relay that this is a REDIRECTION session
|
||||
obj.socket = new WebSocket(window.location.protocol.replace('http', 'ws') + '//' + window.location.host + window.location.pathname.substring(0, window.location.pathname.lastIndexOf('/')) + '/webrelay.ashx?p=2&host=' + obj.host + '&port=' + obj.port + '&tls=' + obj.tls + '&tls1only=1' + ((obj.user == '*') ? '&serverauth=1' : '') + ((typeof pass === 'undefined') ? ('&serverauth=1&user=' + obj.user) : '')); // The 'p=2' indicates to the relay that this is a REDIRECTION session
|
||||
obj.socket.binaryType = 'arraybuffer';
|
||||
obj.socket.onopen = obj.xxOnSocketConnected;
|
||||
obj.socket.onmessage = obj.xxOnMessage;
|
||||
obj.socket.onclose = obj.xxOnSocketClosed;
|
||||
|
|
@ -301,7 +252,7 @@ var CreateAmtRedirect = function (module, authCookie) {
|
|||
}
|
||||
}
|
||||
|
||||
obj.xxStateChange = function(newstate) {
|
||||
obj.xxStateChange = function (newstate) {
|
||||
if (obj.State == newstate) return;
|
||||
obj.State = newstate;
|
||||
obj.m.xxStateChange(obj.State);
|
||||
|
|
@ -309,18 +260,12 @@ var CreateAmtRedirect = function (module, authCookie) {
|
|||
}
|
||||
|
||||
obj.Stop = function (x) {
|
||||
if (obj.debugmode == 1) { console.log('onSocketStop', x); }
|
||||
//obj.Debug("Redir Socket Stopped");
|
||||
obj.xxStateChange(0);
|
||||
obj.connectstate = -1;
|
||||
obj.amtaccumulator = "";
|
||||
obj.acc = null;
|
||||
if (obj.socket != null) { obj.socket.close(); obj.socket = null; }
|
||||
if (obj.amtkeepalivetimer != null) { clearInterval(obj.amtkeepalivetimer); obj.amtkeepalivetimer = null; }
|
||||
}
|
||||
|
||||
obj.RedirectStartSol = String.fromCharCode(0x10, 0x00, 0x00, 0x00, 0x53, 0x4F, 0x4C, 0x20);
|
||||
obj.RedirectStartKvm = String.fromCharCode(0x10, 0x01, 0x00, 0x00, 0x4b, 0x56, 0x4d, 0x52);
|
||||
obj.RedirectStartIder = String.fromCharCode(0x10, 0x00, 0x00, 0x00, 0x49, 0x44, 0x45, 0x52);
|
||||
|
||||
return obj;
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue