1a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat/* 2a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat * noVNC: HTML5 VNC client 3a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat * Copyright (C) 2011 Joel Martin 4a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat * Licensed under LGPL-3 (see LICENSE.txt) 5a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat * 6a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat * See README.md for usage and integration instructions. 7a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat */ 8a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat 9a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat"use strict"; 10a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat/*jslint bitwise: false, white: false */ 11a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat/*global Util, window, document */ 12a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat 13a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat// Globals defined here 14a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehatvar WebUtil = {}, $D; 15a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat 16a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat/* 17a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat * Simple DOM selector by ID 18a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat */ 19a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehatif (!window.$D) { 20a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat window.$D = function (id) { 21a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat if (document.getElementById) { 22a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat return document.getElementById(id); 23a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat } else if (document.all) { 24a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat return document.all[id]; 25a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat } else if (document.layers) { 26a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat return document.layers[id]; 27a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat } 28a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat return undefined; 29a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat }; 30a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat} 31a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat 32a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat 33a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat/* 34a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat * ------------------------------------------------------ 35a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat * Namespaced in WebUtil 36a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat * ------------------------------------------------------ 37a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat */ 38a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat 39a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat// init log level reading the logging HTTP param 40a430b2b5ca4f0967836f5820e8f03adc17fc0a24San MehatWebUtil.init_logging = function() { 41a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat Util._log_level = (document.location.href.match( 42a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat /logging=([A-Za-z0-9\._\-]*)/) || 43a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat ['', Util._log_level])[1]; 44a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat 45a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat Util.init_logging(); 46a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat}; 47a430b2b5ca4f0967836f5820e8f03adc17fc0a24San MehatWebUtil.init_logging(); 48a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat 49a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat 50a430b2b5ca4f0967836f5820e8f03adc17fc0a24San MehatWebUtil.dirObj = function (obj, depth, parent) { 51a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat var i, msg = "", val = ""; 52a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat if (! depth) { depth=2; } 53a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat if (! parent) { parent= ""; } 54a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat 55a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat // Print the properties of the passed-in object 56a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat for (i in obj) { 57a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat if ((depth > 1) && (typeof obj[i] === "object")) { 58a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat // Recurse attributes that are objects 59a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat msg += WebUtil.dirObj(obj[i], depth-1, parent + "." + i); 60a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat } else { 61a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat //val = new String(obj[i]).replace("\n", " "); 62a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat if (typeof(obj[i]) === "undefined") { 63a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat val = "undefined"; 64a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat } else { 65a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat val = obj[i].toString().replace("\n", " "); 66a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat } 67a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat if (val.length > 30) { 68a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat val = val.substr(0,30) + "..."; 69a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat } 70a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat msg += parent + "." + i + ": " + val + "\n"; 71a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat } 72a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat } 73a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat return msg; 74a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat}; 75a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat 76a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat// Read a query string variable 77a430b2b5ca4f0967836f5820e8f03adc17fc0a24San MehatWebUtil.getQueryVar = function(name, defVal) { 78a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat var re = new RegExp('[?][^#]*' + name + '=([^&#]*)'); 79a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat if (typeof defVal === 'undefined') { defVal = null; } 80a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat return (document.location.href.match(re) || ['',defVal])[1]; 81a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat}; 82a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat 83a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat 84a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat/* 85a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat * Cookie handling. Dervied from: http://www.quirksmode.org/js/cookies.html 86a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat */ 87a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat 88a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat// No days means only for this browser session 89a430b2b5ca4f0967836f5820e8f03adc17fc0a24San MehatWebUtil.createCookie = function(name,value,days) { 90a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat var date, expires; 91a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat if (days) { 92a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat date = new Date(); 93a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat date.setTime(date.getTime()+(days*24*60*60*1000)); 94a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat expires = "; expires="+date.toGMTString(); 95a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat } 96a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat else { 97a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat expires = ""; 98a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat } 99a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat document.cookie = name+"="+value+expires+"; path=/"; 100a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat}; 101a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat 102a430b2b5ca4f0967836f5820e8f03adc17fc0a24San MehatWebUtil.readCookie = function(name, defaultValue) { 103a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat var i, c, nameEQ = name + "=", ca = document.cookie.split(';'); 104a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat for(i=0; i < ca.length; i += 1) { 105a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat c = ca[i]; 106a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat while (c.charAt(0) === ' ') { c = c.substring(1,c.length); } 107a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat if (c.indexOf(nameEQ) === 0) { return c.substring(nameEQ.length,c.length); } 108a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat } 109a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat return (typeof defaultValue !== 'undefined') ? defaultValue : null; 110a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat}; 111a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat 112a430b2b5ca4f0967836f5820e8f03adc17fc0a24San MehatWebUtil.eraseCookie = function(name) { 113a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat WebUtil.createCookie(name,"",-1); 114a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat}; 115a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat 116a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat/* 117a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat * Alternate stylesheet selection 118a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat */ 119a430b2b5ca4f0967836f5820e8f03adc17fc0a24San MehatWebUtil.getStylesheets = function() { var i, links, sheets = []; 120a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat links = document.getElementsByTagName("link"); 121a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat for (i = 0; i < links.length; i += 1) { 122a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat if (links[i].title && 123a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat links[i].rel.toUpperCase().indexOf("STYLESHEET") > -1) { 124a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat sheets.push(links[i]); 125a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat } 126a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat } 127a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat return sheets; 128a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat}; 129a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat 130a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat// No sheet means try and use value from cookie, null sheet used to 131a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat// clear all alternates. 132a430b2b5ca4f0967836f5820e8f03adc17fc0a24San MehatWebUtil.selectStylesheet = function(sheet) { 133a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat var i, link, sheets = WebUtil.getStylesheets(); 134a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat if (typeof sheet === 'undefined') { 135a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat sheet = 'default'; 136a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat } 137a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat for (i=0; i < sheets.length; i += 1) { 138a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat link = sheets[i]; 139a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat if (link.title === sheet) { 140a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat Util.Debug("Using stylesheet " + sheet); 141a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat link.disabled = false; 142a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat } else { 143a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat //Util.Debug("Skipping stylesheet " + link.title); 144a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat link.disabled = true; 145a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat } 146a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat } 147a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat return sheet; 148a430b2b5ca4f0967836f5820e8f03adc17fc0a24San Mehat}; 149