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   1  <?php
   2  /**
   3   * $RCSfile: tiny_mce_gzip.php,v $
   4   * $Revision: $
   5   * $Date: $
   6   *
   7   * @version 1.08
   8   * @author Moxiecode
   9   * @copyright Copyright © 2005-2006, 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) || in_array('x-gzip', $encodings) || isset($_SERVER['---------------'])) && function_exists('ob_gzhandler') && !ini_get('zlib.output_compression')) {
  71      $enc = in_array('x-gzip', $encodings) ? "x-gzip" : "gzip";
  72  
  73      // Use cached file if it exists but not in debug mode
  74      if (file_exists($cacheFile) && !$debug) {
  75          header("Content-Encoding: " . $enc);
  76          echo file_get_contents($cacheFile);
  77          die;
  78      }
  79  
  80      if (!$diskCache)
  81          ob_start("ob_gzhandler");
  82  } else
  83      $diskCache = false;
  84  
  85  if ($index > -1) {
  86      // Write main script and patch some things
  87      if ($index == 0) {
  88          TinyMCE_echo(file_get_contents(realpath("tiny_mce" . $suffix . ".js")));
  89          TinyMCE_echo('TinyMCE.prototype.orgLoadScript = TinyMCE.prototype.loadScript;');
  90          TinyMCE_echo('TinyMCE.prototype.loadScript = function() {};var realTinyMCE = tinyMCE;');
  91      } else
  92          TinyMCE_echo('tinyMCE = realTinyMCE;');
  93  
  94      // Do init based on index
  95      TinyMCE_echo("tinyMCE.init(tinyMCECompressed.configs[" . $index . "]);");
  96  
  97      // Load external plugins
  98      if ($index == 0)
  99          TinyMCE_echo("tinyMCECompressed.loadPlugins();");
 100  
 101      // Load theme, language pack and theme language packs
 102      if ($theme) {
 103          TinyMCE_echo(file_get_contents(realpath("themes/" . $theme . "/editor_template" . $suffix . ".js")));
 104          TinyMCE_echo(file_get_contents(realpath("themes/" . $theme . "/langs/" . $lang . ".js")));
 105      }
 106  
 107      if ($language)
 108          TinyMCE_echo(file_get_contents(realpath("langs/" . $language . ".js")));
 109  
 110      // Load all plugins and their language packs
 111      $plugins = explode(",", $plugins);
 112      foreach ($plugins as $plugin) {
 113          $pluginFile = realpath("plugins/" . $plugin . "/editor_plugin" . $suffix . ".js");
 114          $languageFile = realpath("plugins/" . $plugin . "/langs/" . $lang . ".js");
 115  
 116          if ($pluginFile)
 117              TinyMCE_echo(file_get_contents($pluginFile));
 118  
 119          if ($languageFile)
 120              TinyMCE_echo(file_get_contents($languageFile));
 121      }
 122  
 123      // Reset tinyMCE compressor engine
 124      TinyMCE_echo("tinyMCE = tinyMCECompressed;");
 125  
 126      // Write to cache
 127      if ($diskCache) {
 128          // Calculate compression ratio and debug target output path
 129          if ($debug) {
 130              $ratio = round(100 - strlen(gzencode($cacheData, 9, FORCE_GZIP)) / strlen($cacheData) * 100.0);
 131              TinyMCE_echo("alert('TinyMCE was compressed by " . $ratio . "%.\\nOutput cache file: " . $cacheFile . "');");
 132          }
 133  
 134          $cacheData = gzencode($cacheData, 9, FORCE_GZIP);
 135  
 136          // Write to file if possible
 137          $fp = @fopen($cacheFile, "wb");
 138          if ($fp) {
 139              fwrite($fp, $cacheData);
 140              fclose($fp);
 141          }
 142  
 143          // Output
 144          header("Content-Encoding: " . $enc);
 145          echo $cacheData;
 146      }
 147  
 148      die;
 149  }
 150  ?>
 151  
 152  function TinyMCECompressed() {
 153      this.configs = new Array();
 154      this.loadedFiles = new Array();
 155      this.externalPlugins = new Array();
 156      this.loadAdded = false;
 157      this.isLoaded = false;
 158  }
 159  
 160  TinyMCECompressed.prototype.init = function(settings) {
 161      var elements = document.getElementsByTagName('script');
 162      var scriptURL = "";
 163  
 164      for (var i=0; i<elements.length; i++) {
 165          if (elements[i].src && elements[i].src.indexOf("tiny_mce_gzip.php") != -1) {
 166              scriptURL = elements[i].src;
 167              break;
 168          }
 169      }
 170  
 171      settings["theme"] = typeof(settings["theme"]) != "undefined" ? settings["theme"] : "default";
 172      settings["plugins"] = typeof(settings["plugins"]) != "undefined" ? settings["plugins"] : "";
 173      settings["language"] = typeof(settings["language"]) != "undefined" ? settings["language"] : "en";
 174      settings["button_tile_map"] = typeof(settings["button_tile_map"]) != "undefined" ? settings["button_tile_map"] : true;
 175      this.configs[this.configs.length] = settings;
 176      this.settings = settings;
 177  
 178      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);
 179      document.write('<sc'+'ript language="javascript" type="text/javascript" src="' + scriptURL + '"></script>');
 180  
 181      if (!this.loadAdded) {
 182          tinyMCE.addEvent(window, "DOMContentLoaded", TinyMCECompressed.prototype.onLoad);
 183          tinyMCE.addEvent(window, "load", TinyMCECompressed.prototype.onLoad);
 184          this.loadAdded = true;
 185      }
 186  }
 187  
 188  TinyMCECompressed.prototype.onLoad = function() {
 189      if (tinyMCE.isLoaded)
 190          return true;
 191  
 192      tinyMCE = realTinyMCE;
 193      TinyMCE_Engine.prototype.onLoad();
 194      tinyMCE._addUnloadEvents();
 195  
 196      tinyMCE.isLoaded = true;
 197  }
 198  
 199  TinyMCECompressed.prototype.addEvent = function(o, n, h) {
 200      if (o.attachEvent)
 201          o.attachEvent("on" + n, h);
 202      else
 203          o.addEventListener(n, h, false);
 204  }
 205  
 206  TinyMCECompressed.prototype.getOnce = function(str) {
 207      var ar = str.replace(/\s+/g, '').split(',');
 208  
 209      for (var i=0; i<ar.length; i++) {
 210          if (ar[i] == '' || ar[i].charAt(0) == '-') {
 211              ar[i] = null;
 212              continue;
 213          }
 214  
 215          // Skip load
 216          for (var x=0; x<this.loadedFiles.length; x++) {
 217              if (this.loadedFiles[x] == ar[i])
 218                  ar[i] = null;
 219          }
 220  
 221          this.loadedFiles[this.loadedFiles.length] = ar[i];
 222      }
 223  
 224      // Glue
 225      str = "";
 226      for (var i=0; i<ar.length; i++) {
 227          if (ar[i] == null)
 228              continue;
 229  
 230          str += ar[i];
 231  
 232          if (i != ar.length-1)
 233              str += ",";
 234      }
 235  
 236      return str;
 237  };
 238  
 239  TinyMCECompressed.prototype.loadPlugins = function() {
 240      var i, ar;
 241  
 242      TinyMCE.prototype.loadScript = TinyMCE.prototype.orgLoadScript;
 243      tinyMCE = realTinyMCE;
 244  
 245      ar = tinyMCECompressed.externalPlugins;
 246      for (i=0; i<ar.length; i++)
 247          tinyMCE.loadPlugin(ar[i].name, ar[i].url);
 248  
 249      TinyMCE.prototype.loadScript = function() {};
 250  };
 251  
 252  TinyMCECompressed.prototype.loadPlugin = function(n, u) {
 253      this.externalPlugins[this.externalPlugins.length] = {name : n, url : u};
 254  };
 255  
 256  TinyMCECompressed.prototype.importPluginLanguagePack = function(n, v) {
 257      tinyMCE = realTinyMCE;
 258      TinyMCE.prototype.loadScript = TinyMCE.prototype.orgLoadScript;
 259      tinyMCE.importPluginLanguagePack(n, v);
 260  };
 261  
 262  TinyMCECompressed.prototype.addPlugin = function(n, p) {
 263      tinyMCE = realTinyMCE;
 264      tinyMCE.addPlugin(n, p);
 265  };
 266  
 267  var tinyMCE = new TinyMCECompressed();
 268  var tinyMCECompressed = tinyMCE;