mirror of
https://github.com/Ylianst/MeshCentral.git
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300 lines
13 KiB
JavaScript
300 lines
13 KiB
JavaScript
/**
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* @description RDP Remote Desktop
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* @author Ylian Saint-Hilaire
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* @version v0.0.1
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*/
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// Construct a RDP remote desktop object
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var CreateRDPDesktop = function (canvasid) {
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var obj = {}
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obj.m = { KeyAction: { "NONE": 0, "DOWN": 1, "UP": 2, "SCROLL": 3, "EXUP": 4, "EXDOWN": 5, "DBLCLICK": 6 } };
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obj.State = 0;
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obj.canvas = Q(canvasid);
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obj.CanvasId = canvasid;
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if (typeof canvasid === 'string') obj.CanvasId = Q(canvasid);
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obj.Canvas = obj.CanvasId.getContext('2d');
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obj.ScreenWidth = obj.width = 1280;
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obj.ScreenHeight = obj.height = 1024;
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obj.m.onClipboardChanged = null;
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obj.onConsoleMessageChange = null;
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var xMouseCursorActive = true;
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var xMouseCursorCurrent = 'default';
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obj.mouseCursorActive = function (x) { if (xMouseCursorActive == x) return; xMouseCursorActive = x; obj.CanvasId.style.cursor = ((x == true) ? xMouseCursorCurrent : 'default'); }
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function mouseButtonMap(button) {
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// Swap mouse buttons if needed
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if (obj.m.SwapMouse === true) return [2, 0, 1, 0, 0][button];
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return [1, 0, 2, 0, 0][button];
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};
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obj.Start = function (nodeid, port, credentials) {
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changeState(1);
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obj.nodeid = nodeid;
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obj.port = port;
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obj.credentials = credentials;
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var options = { savepass: credentials.savecred, useServerCreds: credentials.servercred, width: credentials.width, height: credentials.height, flags: credentials.flags, workingDir: credentials.workdir, alternateShell: credentials.altshell };
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if (credentials.width && credentials.height) {
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options.width = obj.ScreenWidth = obj.width = credentials.width;
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options.height = obj.ScreenHeight = obj.height = credentials.height;
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delete credentials.width;
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delete credentials.height;
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}
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obj.render = new Mstsc.Canvas.create(obj.canvas);
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obj.socket = new WebSocket('wss://' + window.location.host + '/mstscrelay.ashx'); // TODO: Support domains
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obj.socket.binaryType = 'arraybuffer';
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obj.socket.onopen = function () {
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changeState(2); // Setup state
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obj.socket.send(JSON.stringify(['infos', {
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ip: obj.nodeid,
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port: obj.port,
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screen: { width: obj.width, height: obj.height },
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domain: credentials.domain,
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username: credentials.username,
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password: credentials.password,
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options: options,
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locale: Mstsc.locale()
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}]));
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};
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obj.socket.onmessage = function (evt) {
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if (typeof evt.data == 'string') {
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// This is a JSON text string, parse it.
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var msg = JSON.parse(evt.data);
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switch (msg[0]) {
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case 'rdp-connect': {
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changeState(3);
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obj.rotation = 0;
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obj.Canvas.setTransform(1, 0, 0, 1, 0, 0);
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obj.Canvas.canvas.width = obj.ScreenWidth;
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obj.Canvas.canvas.height = obj.ScreenHeight;
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obj.Canvas.fillRect(0, 0, obj.ScreenWidth, obj.ScreenHeight);
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if (obj.m.onScreenSizeChange != null) { obj.m.onScreenSizeChange(obj, obj.ScreenWidth, obj.ScreenHeight, obj.CanvasId); }
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break;
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}
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case 'rdp-bitmap': {
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if (obj.bitmapData == null) break;
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var bitmap = msg[1];
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bitmap.data = obj.bitmapData; // Use the binary data that was sent earlier.
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delete obj.bitmapData;
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obj.render.update(bitmap);
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break;
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}
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case 'rdp-pointer': {
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var pointer = msg[1];
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xMouseCursorCurrent = pointer;
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if (xMouseCursorActive) { obj.CanvasId.style.cursor = pointer; }
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break;
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}
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case 'rdp-close': {
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obj.Stop();
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break;
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}
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case 'rdp-error': {
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obj.consoleMessageTimeout = 5; // Seconds
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obj.consoleMessage = msg[1];
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delete obj.consoleMessageArgs;
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if (msg.length > 2) { obj.consoleMessageArgs = [ msg[2] ]; }
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switch (msg[1]) {
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case 'NODE_RDP_PROTOCOL_X224_NEG_FAILURE':
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if (msg[2] == 1) { obj.consoleMessageId = 9; } // "SSL required by server";
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else if (msg[2] == 2) { obj.consoleMessageId = 10; } // "SSL not allowed by server";
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else if (msg[2] == 3) { obj.consoleMessageId = 11; } // "SSL certificate not on server";
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else if (msg[2] == 4) { obj.consoleMessageId = 12; } // "Inconsistent flags";
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else if (msg[2] == 5) { obj.consoleMessageId = 13; } // "Hybrid required by server";
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else if (msg[2] == 6) { obj.consoleMessageId = 14; } // "SSL with user auth required by server";
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else obj.consoleMessageId = 7; // "Protocol negotiation failed";
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break;
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case 'NODE_RDP_PROTOCOL_X224_NLA_NOT_SUPPORTED':
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obj.consoleMessageId = 8; // "NLA not supported";
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break;
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default:
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obj.consoleMessageId = null;
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break;
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}
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if (obj.onConsoleMessageChange) { obj.onConsoleMessageChange(); }
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obj.Stop();
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break;
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}
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case 'rdp-clipboard': { obj.lastClipboardContent = msg[1]; if (obj.m.onClipboardChanged) { obj.m.onClipboardChanged(msg[1]); } break; }
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case 'ping': { obj.socket.send('["pong"]'); break; }
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case 'pong': { break; }
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}
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} else {
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// This is binary bitmap data, store it.
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obj.bitmapData = evt.data;
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}
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};
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obj.socket.onclose = function () { changeState(0); };
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changeState(1);
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}
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obj.Stop = function () {
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obj.Canvas.fillRect(0, 0, obj.ScreenWidth, obj.ScreenHeight);
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if (obj.socket) { obj.socket.close(); }
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}
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obj.m.setClipboard = function (content) { if (obj.socket) { obj.socket.send(JSON.stringify(['clipboard', content])); } }
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obj.m.getClipboard = function () { return obj.lastClipboardContent; }
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function changeState(newstate) {
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if (obj.State == newstate) return;
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obj.State = newstate;
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if (obj.onStateChanged != null) obj.onStateChanged(obj, obj.State);
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}
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function getPositionOfControl(Control) {
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var Position = Array(2);
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Position[0] = Position[1] = 0;
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while (Control) { Position[0] += Control.offsetLeft; Position[1] += Control.offsetTop; Control = Control.offsetParent; }
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return Position;
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}
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function getMousePosition(event) {
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var ScaleFactorHeight = (obj.Canvas.canvas.height / obj.CanvasId.clientHeight);
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var ScaleFactorWidth = (obj.Canvas.canvas.width / obj.CanvasId.clientWidth);
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var Offsets = getPositionOfControl(obj.Canvas.canvas);
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var X = ((event.pageX - Offsets[0]) * ScaleFactorWidth);
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var Y = ((event.pageY - Offsets[1]) * ScaleFactorHeight);
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if (event.addx) { X += event.addx; }
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if (event.addy) { Y += event.addy; }
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return { x: X, y: Y };
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}
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obj.m.mousemove = function (e) {
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if (!obj.socket || (obj.State != 3)) return;
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var m = getMousePosition(e);
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if ((m.x < 0) || (m.y < 0) || (m.x > obj.ScreenWidth) || (m.y > obj.ScreenHeight)) return;
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obj.mouseNagleData = ['mouse', m.x, m.y, 0, false];
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if (obj.mouseNagleTimer == null) { obj.mouseNagleTimer = setTimeout(function () { obj.socket.send(JSON.stringify(obj.mouseNagleData)); obj.mouseNagleTimer = null; }, 50); }
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e.preventDefault();
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return false;
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}
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obj.m.mouseup = function (e) {
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if (!obj.socket || (obj.State != 3)) return;
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var m = getMousePosition(e);
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if ((m.x < 0) || (m.y < 0) || (m.x > obj.ScreenWidth) || (m.y > obj.ScreenHeight)) return;
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if (obj.mouseNagleTimer != null) { clearTimeout(obj.mouseNagleTimer); obj.mouseNagleTimer = null; }
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obj.socket.send(JSON.stringify(['mouse', m.x, m.y, mouseButtonMap(e.button), false]));
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e.preventDefault();
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return false;
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}
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obj.m.mousedown = function (e) {
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if (!obj.socket || (obj.State != 3)) return;
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var m = getMousePosition(e);
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if ((m.x < 0) || (m.y < 0) || (m.x > obj.ScreenWidth) || (m.y > obj.ScreenHeight)) return;
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if (obj.mouseNagleTimer != null) { clearTimeout(obj.mouseNagleTimer); obj.mouseNagleTimer = null; }
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obj.socket.send(JSON.stringify(['mouse', m.x, m.y, mouseButtonMap(e.button), true]));
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e.preventDefault();
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return false;
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}
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obj.m.handleKeyUp = function (e) {
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if (!obj.socket || (obj.State != 3)) return;
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//console.log('handleKeyUp', Mstsc.scancode(e));
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obj.socket.send(JSON.stringify(['scancode', Mstsc.scancode(e), false]));
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e.preventDefault();
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return false;
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}
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obj.m.handleKeyDown = function (e) {
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if (!obj.socket || (obj.State != 3)) return;
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//console.log('handleKeyDown', Mstsc.scancode(e));
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obj.socket.send(JSON.stringify(['scancode', Mstsc.scancode(e), true]));
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e.preventDefault();
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return false;
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}
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obj.m.mousewheel = function (e) {
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if (!obj.socket || (obj.State != 3)) return;
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var m = getMousePosition(e);
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if ((m.x < 0) || (m.y < 0) || (m.x > obj.ScreenWidth) || (m.y > obj.ScreenHeight)) return;
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if (obj.mouseNagleTimer != null) { clearTimeout(obj.mouseNagleTimer); obj.mouseNagleTimer = null; }
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var delta = 0;
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if (e.detail) { delta = (e.detail * 120); } else if (e.wheelDelta) { delta = (e.wheelDelta * 3); }
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if (obj.m.ReverseMouseWheel) { delta = -1 * delta; } // Reverse the mouse wheel
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if (delta != 0) { obj.socket.send(JSON.stringify(['wheel', m.x, m.y, delta, false, false])); }
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e.preventDefault();
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return false;
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}
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obj.m.SendStringUnicode = function (txt) {
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if (!obj.socket || (obj.State != 3)) return;
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obj.socket.send(JSON.stringify(['utype', txt]));
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}
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obj.m.SendKeyMsgKC = function (action, kc, extendedKey) {
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if (obj.State != 3) return;
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if (typeof action == 'object') { for (var i in action) { obj.m.SendKeyMsgKC(action[i][0], action[i][1], action[i][2]); } }
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else {
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var scan = shortcutToScan[kc];
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if (scan != null) { obj.socket.send(JSON.stringify(['scancode', scan, ((action & 1) != 0)])); }
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}
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}
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obj.m.mousedblclick = function () { }
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obj.m.handleKeyPress = function () { }
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obj.m.setRotation = function () { }
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obj.m.sendcad = function () { // Ctrl-Alt-Del
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obj.socket.send(JSON.stringify(['scancode', 29, true])); // CTRL
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obj.socket.send(JSON.stringify(['scancode', 56, true])); // ALT
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obj.socket.send(JSON.stringify(['scancode', 57427, true])); // DEL
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obj.socket.send(JSON.stringify(['scancode', 57427, false]));
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obj.socket.send(JSON.stringify(['scancode', 56, false]));
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obj.socket.send(JSON.stringify(['scancode', 29, false]));
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}
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var shortcutToScan = {
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9: 15, // Tab
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16: 42, // Shift
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17: 29, // Ctrl
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18: 56, // Alt
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27: 1, // ESC
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33: 57417, // Page Up
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34: 57425, // Page Down
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35: 57423, // End
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36: 57415, // Home
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37: 57419, // Left
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38: 57416, // Up
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39: 57421, // Right
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40: 57424, // Down
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44: 57399, // Print Screen
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45: 57426, // Insert
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46: 57427, // Del
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65: 30, // A
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66: 48, // B
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67: 46, // C
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68: 32, // D
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69: 18, // E
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70: 33, // F
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71: 34, // G
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72: 35, // H
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73: 23, // I
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74: 36, // J
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75: 37, // K
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76: 38, // L
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77: 50, // M
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78: 49, // N
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79: 24, // O
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80: 25, // P
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81: 16, // Q
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82: 19, // R
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83: 31, // S
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84: 20, // T
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85: 22, // U
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86: 47, // V
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87: 17, // W
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88: 45, // X
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89: 21, // Y
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90: 44, // Z
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91: 57435, // Windows left
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112: 59, // F1
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113: 60, // F2
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114: 61, // F3
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115: 62, // F4
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116: 63, // F5
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117: 64, // F6
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118: 65, // F7
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119: 66, // F8
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120: 67, // F9
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121: 68, // F10
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122: 87, // F11
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123: 88 // F12
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}
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return obj;
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}
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