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   1  <?php
   2  /**
   3   * $RCSfile: tiny_mce_gzip.php,v $
   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;