lib/editor/tinymce/jscripts/tiny_mce/tiny_mce_gzip.php

   1 <?php // $Id$
   2 /**
   3  * $RCSfile$
   4  * $Revision$
   5  * $Date$
   6  *
   7  * @version 1.07
   8  * @author Moxiecode
   9  * @copyright Copyright © 20052006, Moxiecode Systems AB, All rights reserved.
  10  *
  11  * This file compresses the TinyMCE JavaScript using GZip and
  12  * enables the browser to do two requests instead of one for each .js file.
  13  * Notice: This script defaults the button_tile_map option to true for extra performance.
  14  */
  15
  16 // General options
  17 $suffix = "";                           // Set to "_src" to use source version
  18 $expiresOffset = 3600 * 24 * 10;        // 10 days util client cache expires
  19 $diskCache = false;                     // If you enable this option gzip files will be cached on disk.
  20 $cacheDir = realpath(".");              // Absolute directory path to where cached gz files will be stored
  21 $debug = false;                         // Enable this option if you need debuging info
  22
  23 // Headers
  24 header("Content-type: text/javascript; charset: UTF-8");
  25 // header("Cache-Control: must-revalidate");
  26 header("Vary: Accept-Encoding"); // Handle proxies
  27 header("Expires: " . gmdate("D, d M Y H:i:s", time() + $expiresOffset) . " GMT");
  28
  29 // Get data to load
  30 $theme = isset($_GET['theme']) ? TinyMCE_cleanInput($_GET['theme']) : "";
  31 $language = isset($_GET['language']) ? TinyMCE_cleanInput($_GET['language']) : "";
  32 $plugins = isset($_GET['plugins']) ? TinyMCE_cleanInput($_GET['plugins']) : "";
  33 $lang = isset($_GET['lang']) ? TinyMCE_cleanInput($_GET['lang']) : "en";
  34 $index = isset($_GET['index']) ? TinyMCE_cleanInput($_GET['index']) : -1;
  35 $cacheKey = md5($theme . $language . $plugins . $lang . $index . $debug);
  36 $cacheFile = $cacheDir == "" ? "" : $cacheDir . "/" . "tinymce_" .  $cacheKey . ".gz";
  37 $cacheData = "";
  38
  39 // Patch older versions of PHP < 4.3.0
  40 if (!function_exists('file_get_contents')) {
  41     function file_get_contents($filename) {
  42         $fd = fopen($filename, 'rb');
  43         $content = fread($fd, filesize($filename));
  44         fclose($fd);
  45         return $content;
  46     }
  47 }
  48
  49 // Security check function, can only contain a-z 0-9 , _ - and whitespace.
  50 function TinyMCE_cleanInput($str) {
  51     return preg_replace("/[^0-9a-z\-_,]+/i", "", $str); // Remove anything but 0-9,a-z,-_
  52 }
  53
  54 function TinyMCE_echo($str) {
  55     global $cacheData, $diskCache;
  56
  57     if ($diskCache)
  58         $cacheData .= $str;
  59     else
  60         echo $str;
  61 }
  62
  63 // Only gzip the contents if clients and server support it
  64 $encodings = array();
  65
  66 if (isset($_SERVER['HTTP_ACCEPT_ENCODING']))
  67     $encodings = explode(',', strtolower(preg_replace("/\s+/", "", $_SERVER['HTTP_ACCEPT_ENCODING'])));
  68
  69 // Check for gzip header or northon internet securities
  70 if ((in_array('gzip', $encodings) || isset($_SERVER['---------------'])) && function_exists('ob_gzhandler') && !ini_get('zlib.output_compression')) {
  71     // Use cached file if it exists but not in debug mode
  72     if (file_exists($cacheFile) && !$debug) {
  73         header("Content-Encoding: gzip");
  74         echo file_get_contents($cacheFile);
  75         die;
  76     }
  77
  78     if (!$diskCache)
  79         ob_start("ob_gzhandler");
  80 } else
  81     $diskCache = false;
  82
  83 if ($index > -1) {
  84     // Write main script and patch some things
  85     if ($index == 0) {
  86         TinyMCE_echo(file_get_contents(realpath("tiny_mce" . $suffix . ".js")));
  87         TinyMCE_echo('TinyMCE.prototype.loadScript = function() {};var realTinyMCE = tinyMCE;');
  88     } else
  89         TinyMCE_echo('tinyMCE = realTinyMCE;');
  90
  91     // Do init based on index
  92     TinyMCE_echo("tinyMCE.init(tinyMCECompressed.configs[" . $index . "]);");
  93
  94     // Load theme, language pack and theme language packs
  95     if ($theme) {
  96         TinyMCE_echo(file_get_contents(realpath("themes/" . $theme . "/editor_template" . $suffix . ".js")));
  97         TinyMCE_echo(file_get_contents(realpath("themes/" . $theme . "/langs/" . $lang . ".js")));
  98     }
  99
 100     if ($language)
 101         TinyMCE_echo(file_get_contents(realpath("langs/" . $language . ".js")));
 102
 103     // Load all plugins and their language packs
 104     $plugins = explode(",", $plugins);
 105     foreach ($plugins as $plugin) {
 106         $pluginFile = realpath("plugins/" . $plugin . "/editor_plugin" . $suffix . ".js");
 107         $languageFile = realpath("plugins/" . $plugin . "/langs/" . $lang . ".js");
 108
 109         if ($pluginFile)
 110             TinyMCE_echo(file_get_contents($pluginFile));
 111
 112         if ($languageFile)
 113             TinyMCE_echo(file_get_contents($languageFile));
 114     }
 115
 116     // Reset tinyMCE compressor engine
 117     TinyMCE_echo("tinyMCE = tinyMCECompressed;");
 118
 119     // Write to cache
 120     if ($diskCache) {
 121         // Calculate compression ratio and debug target output path
 122         if ($debug) {
 123             $ratio = round(100 - strlen(gzencode($cacheData, 9, FORCE_GZIP)) / strlen($cacheData) * 100.0);
 124             TinyMCE_echo("alert('TinyMCE was compressed by " . $ratio . "%.\\nOutput cache file: " . $cacheFile . "');");
 125         }
 126
 127         $cacheData = gzencode($cacheData, 9, FORCE_GZIP);
 128
 129         // Write to file if possible
 130         $fp = @fopen($cacheFile, "wb");
 131         if ($fp) {
 132             fwrite($fp, $cacheData);
 133             fclose($fp);
 134         }
 135
 136         // Output
 137         header("Content-Encoding: gzip");
 138         echo $cacheData;
 139     }
 140
 141     die;
 142 }
 143 ?>
 144
 145 function TinyMCECompressed() {
 146     this.configs = new Array();
 147     this.loadedFiles = new Array();
 148     this.loadAdded = false;
 149     this.isLoaded = false;
 150 }
 151
 152 TinyMCECompressed.prototype.init = function(settings) {
 153     var elements = document.getElementsByTagName('script');
 154     var scriptURL = "";
 155
 156     for (var i=0; i<elements.length; i++) {
 157         if (elements[i].src && elements[i].src.indexOf("tiny_mce_gzip.php") != -1) {
 158             scriptURL = elements[i].src;
 159             break;
 160         }
 161     }
 162
 163     settings["theme"] = typeof(settings["theme"]) != "undefined" ? settings["theme"] : "default";
 164     settings["plugins"] = typeof(settings["plugins"]) != "undefined" ? settings["plugins"] : "";
 165     settings["language"] = typeof(settings["language"]) != "undefined" ? settings["language"] : "en";
 166     settings["button_tile_map"] = typeof(settings["button_tile_map"]) != "undefined" ? settings["button_tile_map"] : true;
 167     this.configs[this.configs.length] = settings;
 168     this.settings = settings;
 169
 170     scriptURL += "?theme=" + escape(this.getOnce(settings["theme"])) + "&language=" + escape(this.getOnce(settings["language"])) + "&plugins=" + escape(this.getOnce(settings["plugins"])) + "&lang=" + settings["language"] + "&index=" + escape(this.configs.length-1);
 171     document.write('<sc'+'ript language="javascript" type="text/javascript" src="' + scriptURL + '"></script>');
 172
 173     if (!this.loadAdded) {
 174         tinyMCE.addEvent(window, "DOMContentLoaded", TinyMCECompressed.prototype.onLoad);
 175         tinyMCE.addEvent(window, "load", TinyMCECompressed.prototype.onLoad);
 176         this.loadAdded = true;
 177     }
 178 }
 179
 180 TinyMCECompressed.prototype.onLoad = function() {
 181     if (tinyMCE.isLoaded)
 182         return true;
 183
 184     tinyMCE = realTinyMCE;
 185     TinyMCE_Engine.prototype.onLoad();
 186     tinyMCE._addUnloadEvents();
 187     tinyMCE.isLoaded = true;
 188 }
 189
 190 TinyMCECompressed.prototype.addEvent = function(o, n, h) {
 191     if (o.attachEvent)
 192         o.attachEvent("on" + n, h);
 193     else
 194         o.addEventListener(n, h, false);
 195 }
 196
 197 TinyMCECompressed.prototype.getOnce = function(str) {
 198     var ar = str.split(',');
 199
 200     for (var i=0; i<ar.length; i++) {
 201         if (ar[i] == '')
 202             continue;
 203
 204         // Skip load
 205         for (var x=0; x<this.loadedFiles.length; x++) {
 206             if (this.loadedFiles[x] == ar[i])
 207                 ar[i] = null;
 208         }
 209
 210         this.loadedFiles[this.loadedFiles.length] = ar[i];
 211     }
 212
 213     // Glue
 214     str = "";
 215     for (var i=0; i<ar.length; i++) {
 216         if (ar[i] == null)
 217             continue;
 218
 219         str += ar[i];
 220
 221         if (i != ar.length-1)
 222             str += ",";
 223     }
 224
 225     return str;
 226 }
 227
 228 var tinyMCE = new TinyMCECompressed();
 229 var tinyMCECompressed = tinyMCE;