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			224 lines
		
	
	
	
		
			9.1 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			224 lines
		
	
	
	
		
			9.1 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
/*
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 * Copyright (c) 2015 Sylvain Peyrefitte
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 *
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 * This file is part of mstsc.js.
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 *
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 * mstsc.js is free software: you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation, either version 3 of the License, or
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 * (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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 */
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(function() {
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	/**
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	 * Mouse button mapping
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	 * @param button {integer} client button number
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	 */
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	function mouseButtonMap(button) {
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		switch(button) {
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		    case 0: return 1;
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		    case 2: return 2;
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		    default: return 0;
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		}
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	};
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	/**
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	 * Mstsc client
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	 * Input client connection (mouse and keyboard)
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	 * bitmap processing
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	 * @param canvas {canvas} rendering element
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	 */
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	function Client(canvas) {
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		this.canvas = canvas;
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		// create renderer
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		this.render = new Mstsc.Canvas.create(this.canvas); 
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		this.socket = null;
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        this.activeSession = false;
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        this.mouseNagleTimer = null;
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        this.mouseNagleData = null;
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		this.install();
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	}
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    /*
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    obj.mNagleTimer = setTimeout(function () {
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        obj.send(String.fromCharCode(5, obj.buttonmask) + ShortToStr(obj.mx) + ShortToStr(obj.my));
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        obj.mNagleTimer = null;
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    }, 50);
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    */
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	Client.prototype = {
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		install : function () {
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            var self = this;
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            // Bind mouse move event
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			this.canvas.addEventListener('mousemove', function (e) {
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                if (!self.socket || !self.activeSession) return;
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                var rect = e.target.getBoundingClientRect();
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                self.mouseNagleData = ['mouse', e.clientX - rect.left, e.clientY - rect.top, 0, false];
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                if (self.mouseNagleTimer == null) {
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                    //console.log('sending', self.mouseNagleData);
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                    self.mouseNagleTimer = setTimeout(function () { self.socket.send(JSON.stringify(self.mouseNagleData)); self.mouseNagleTimer = null; }, 50);
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                }
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                //self.socket.send(JSON.stringify(this.mouseNagleData));
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                e.preventDefault();
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				return false;
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			});
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			this.canvas.addEventListener('mousedown', function (e) {
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                if (!self.socket || !self.activeSession) return;
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                if (self.mouseNagleTimer != null) { clearTimeout(self.mouseNagleTimer); self.mouseNagleTimer = null; }
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                var rect = e.target.getBoundingClientRect();
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                self.socket.send(JSON.stringify(['mouse', e.clientX - rect.left, e.clientY - rect.top, mouseButtonMap(e.button), true]));
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				e.preventDefault();
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				return false;
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			});
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			this.canvas.addEventListener('mouseup', function (e) {
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				if (!self.socket || !self.activeSession) return;
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                if (self.mouseNagleTimer != null) { clearTimeout(self.mouseNagleTimer); self.mouseNagleTimer = null; }
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                var rect = e.target.getBoundingClientRect();
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                self.socket.send(JSON.stringify(['mouse', e.clientX - rect.left, e.clientY - rect.top, mouseButtonMap(e.button), false]));
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				e.preventDefault();
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				return false;
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			});
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			this.canvas.addEventListener('contextmenu', function (e) {
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				if (!self.socket || !self.activeSession) return;
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                if (self.mouseNagleTimer != null) { clearTimeout(self.mouseNagleTimer); self.mouseNagleTimer = null; }
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                var rect = e.target.getBoundingClientRect();
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                self.socket.send(JSON.stringify(['mouse', e.clientX - rect.left, e.clientY - rect.top, mouseButtonMap(e.button), false]));
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				e.preventDefault();
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				return false;
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			});
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			this.canvas.addEventListener('DOMMouseScroll', function (e) {
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				if (!self.socket || !self.activeSession) return;
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                if (self.mouseNagleTimer != null) { clearTimeout(self.mouseNagleTimer); self.mouseNagleTimer = null; }
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				var isHorizontal = false;
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				var delta = e.detail;
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                //var step = Math.round(Math.abs(delta) * 15 / 8);
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                //var step = Math.abs(e.detail);
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                var step = 128;
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                //console.log('DOMMouseScroll', delta, step, e.detail);
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                var rect = e.target.getBoundingClientRect();
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                self.socket.send(JSON.stringify(['wheel', e.clientX - rect.left, e.clientY - rect.top, step, delta > 0, isHorizontal]));
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				e.preventDefault();
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				return false;
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			});
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			this.canvas.addEventListener('mousewheel', function (e) {
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				if (!self.socket || !self.activeSession) return;
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                if (self.mouseNagleTimer != null) { clearTimeout(self.mouseNagleTimer); self.mouseNagleTimer = null; }
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				var isHorizontal = Math.abs(e.deltaX) > Math.abs(e.deltaY);
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				var delta = isHorizontal?e.deltaX:e.deltaY;
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				//var step = Math.round(Math.abs(delta) * 15 / 8);
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                var step = 128;
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                //console.log('mousewheel', delta, step, e);
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                var rect = e.target.getBoundingClientRect();
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                self.socket.send(JSON.stringify(['wheel', e.clientX - rect.left, e.clientY - rect.top, step, delta > 0, isHorizontal]));
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				e.preventDefault();
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				return false;
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			});
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			// Bind keyboard event
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			window.addEventListener('keydown', function (e) {
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				if (!self.socket || !self.activeSession) return;
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                self.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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			window.addEventListener('keyup', function (e) {
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				if (!self.socket || !self.activeSession) return;
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                self.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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			return this;
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        },
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        /**
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		 * disconnect
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		 */
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        disconnect: function () {
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            if (this.socket) { this.socket.close(); }
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        },
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		/**
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		 * connect
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		 * @param ip {string} ip target for rdp
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		 * @param domain {string} microsoft domain
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		 * @param username {string} session username
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		 * @param password {string} session password
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		 * @param next {function} asynchrone end callback
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		 */
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		connect : function (ip, domain, username, password, options, next) {
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			// Start connection
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            var self = this;
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            this.socket = new WebSocket('wss://' + window.location.host + '/mstscrelay.ashx');
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            this.socket.binaryType = 'arraybuffer';
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            this.socket.onopen = function () {
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                //console.log("WS-OPEN");
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                self.socket.send(JSON.stringify(['infos', {
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                    ip: ip,
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                    port: 3389,
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                    screen: {
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                        width: self.canvas.width,
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                        height: self.canvas.height
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                    },
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                    domain: domain,
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                    username: username,
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                    password: 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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            this.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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                            //console.log('[mstsc.js] connected');
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                            self.activeSession = true;
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                            break;
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                        }
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                        case 'rdp-bitmap': {
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                            if (self.bitmapData == null) break;
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                            var bitmap = msg[1];
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                            bitmap.data = self.bitmapData; // Use the binary data that was sent earlier.
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                            delete self.bitmapData;
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                            //console.log('[mstsc.js] bitmap update bpp : ' + bitmap.bitsPerPixel);
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                            self.render.update(bitmap);
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                            break;
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                        }
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                        case 'rdp-close': {
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                            //console.log('[mstsc.js] close');
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                            self.activeSession = false;
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                            next(null);
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                            break;
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                        }
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                        case 'rdp-error': {
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                            var err = msg[1];
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                            console.log('[mstsc.js] error : ' + err.code + '(' + err.message + ')');
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                            self.activeSession = false;
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                            next(err);
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                            break;
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                        }
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                    }
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                } else {
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                    // This is binary bitmap data, store it.
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                    self.bitmapData = evt.data;
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                }
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            };
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            this.socket.onclose = function () {
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                //console.log("WS-CLOSE");
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                self.activeSession = false;
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                next(null);
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            };
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		}
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	}
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	MstscClient = { create : function (canvas) { return new Client(canvas); } }
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})();
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