mirror of
https://github.com/Ylianst/MeshCentral.git
synced 2024-12-26 23:25:53 -05:00
213 lines
8.6 KiB
JavaScript
213 lines
8.6 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 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 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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* 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, 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 + "/mstsc/relay.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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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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