filter/censor/filter.php

   1 <?php // $id$
   2 //////////////////////////////////////////////////////////////
   3 //  Censorship filtering
   4 //
   5 //  This very simple example of a Text Filter will parse
   6 //  printed text, blacking out words perceived to be bad
   7 //
   8 //  The list of words is in the lang/xx/moodle.php
   9 //
  10 //////////////////////////////////////////////////////////////
  11
  12 /// This is the filtering function itself.  It accepts the
  13 /// courseid and the text to be filtered (in HTML form).
  14
  15 function censor_filter($courseid, $text) {
  16
  17     static $words;
  18     global $CFG;
  19
  20     if (!isset($CFG->filter_censor_badwords)) {
  21         set_config( 'filter_censor_badwords','' );
  22     }
  23
  24     if (empty($words)) {
  25         $words = array();
  26         // if no user-specified words, use default list from language pack
  27         if (empty($CFG->filter_censor_badwords)) {
  28             $badwords = explode(',',get_string('badwords','censor') );
  29         }
  30         else {
  31             $badwords = explode(',', $CFG->filter_censor_badwords );
  32         }
  33         foreach ($badwords as $badword) {
  34             $badword = trim($badword);
  35             $words[] = new filterobject($badword, '<span class="censoredtext" title="'.$badword.'">', '</span>',
  36                                         false, false, str_pad('',strlen($badword),'*'));
  37         }
  38     }
  39
  40     return filter_phrases($text, $words);  // Look for all these words in the text
  41 }
  42
  43
  44 ?>