.
/**
* Censorship filtering
*
* This very simple example of a Text Filter will parse
* printed text, blacking out words perceived to be bad
*
* @package filter
* @subpackage censor
* @copyright 2004 onwards Martin Dougiamas {@link http://moodle.com}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
//////////////////////////////////////////////////////////////
// Censorship filtering
//
// This very simple example of a Text Filter will parse
// printed text, blacking out words perceived to be bad
//
// The list of words is in the lang/xx/moodle.php
//
//////////////////////////////////////////////////////////////
class filter_censor extends moodle_text_filter {
private function _canseecensor() {
return is_siteadmin(); //TODO: add proper access control
}
function hash(){
$cap = "mod/filter:censor";
if (is_siteadmin()) { //TODO: add proper access control
$cap = "mod/filter:seecensor";
}
return $cap;
}
function filter($text, array $options = array()){
static $words;
global $CFG;
if (!isset($CFG->filter_censor_badwords)) {
set_config( 'filter_censor_badwords','' );
}
if (empty($words)) {
$words = array();
if (empty($CFG->filter_censor_badwords)) {
$badwords = explode(',',get_string('badwords', 'filter_censor'));
}
else {
$badwords = explode(',', $CFG->filter_censor_badwords);
}
foreach ($badwords as $badword) {
$badword = trim($badword);
if($this->_canseecensor()){
$words[] = new filterobject($badword, '', '',
false, false, $badword);
} else {
$words[] = new filterobject($badword, '',
'', false, false, str_pad('',strlen($badword),'*'));
}
}
}
return filter_phrases($text, $words);
}
}