- Improved cron and ssh user plugins. - Added "touch" function to system.in...

tbrehm

2012-10-19 cc99cdff8ff86b3fbe8eb4261bfaddb86fbec3ec

 server/plugins-available/apache2_plugin.inc.php

@@ -115,8 +115,8 @@
      $csr_file = $ssl_dir.'/'.$domain.'.csr';
      $crt_file = $ssl_dir.'/'.$domain.'.crt';

      //* Create a SSL Certificate
      if($data['new']['ssl_action'] == 'create') {
      //* Create a SSL Certificate, but only if this is not a mirror server.
      if($data['new']['ssl_action'] == 'create' && $conf['mirror_server_id'] == 0) {
         
         $this->ssl_certificate_changed = true;
         
@@ -651,7 +651,7 @@
            $app->system->chmod($data['new']['document_root'].'/tmp',0777);
         
            // Set Log directory to 755 to make the logs accessible by the FTP user
            if(realpath($data['new']['document_root'].'/'.$log_folder) == '/var/log/ispconfig/httpd/'.$data['new']['domain'].'/error.log') {
            if(realpath($data['new']['document_root'].'/'.$log_folder . '/error.log') == '/var/log/ispconfig/httpd/'.$data['new']['domain'].'/error.log') {
               $app->system->chmod($data['new']['document_root'].'/'.$log_folder,0755);
            }
            
@@ -682,7 +682,7 @@
            $app->system->chgrp($data['new']['document_root'],'root');
            $app->system->chown($data['new']['document_root'].'/cgi-bin',$username);
            $app->system->chgrp($data['new']['document_root'].'/cgi-bin',$groupname);
            if(realpath($data['new']['document_root'].'/'.$log_folder) == '/var/log/ispconfig/httpd/'.$data['new']['domain'].'/error.log') {
            if(realpath($data['new']['document_root'].'/'.$log_folder . '/error.log') == '/var/log/ispconfig/httpd/'.$data['new']['domain'].'/error.log') {
               $app->system->chown($data['new']['document_root'].'/'.$log_folder,'root',false);
               $app->system->chgrp($data['new']['document_root'].'/'.$log_folder,$groupname,false);
            }
@@ -714,7 +714,7 @@
            $app->system->chmod($data['new']['document_root'].'/tmp',0777);
            
            // Set Log directory to 755 to make the logs accessible by the FTP user
            if(realpath($data['new']['document_root'].'/'.$log_folder) == '/var/log/ispconfig/httpd/'.$data['new']['domain'].'/error.log') {
            if(realpath($data['new']['document_root'].'/'.$log_folder . '/error.log') == '/var/log/ispconfig/httpd/'.$data['new']['domain'].'/error.log') {
               $app->system->chmod($data['new']['document_root'].'/'.$log_folder,0755);
            }
                
@@ -722,7 +722,7 @@
            $app->system->chgrp($data['new']['document_root'],'root');
            $app->system->chown($data['new']['document_root'].'/cgi-bin',$username);
            $app->system->chgrp($data['new']['document_root'].'/cgi-bin',$groupname);
            if(realpath($data['new']['document_root'].'/'.$log_folder) == '/var/log/ispconfig/httpd/'.$data['new']['domain'].'/error.log') {
            if(realpath($data['new']['document_root'].'/'.$log_folder . '/error.log') == '/var/log/ispconfig/httpd/'.$data['new']['domain'].'/error.log') {
               $app->system->chown($data['new']['document_root'].'/'.$log_folder,'root',false);
               $app->system->chgrp($data['new']['document_root'].'/'.$log_folder,$groupname,false);
            }
@@ -884,26 +884,30 @@

         switch($data['new']['subdomain']) {
            case 'www':
               $rewrite_rules[] = array(   'rewrite_domain'    => '^'.$data['new']['domain'],
               $rewrite_rules[] = array(   'rewrite_domain'    => '^'.$this->_rewrite_quote($data['new']['domain']),
                  'rewrite_type'       => ($data['new']['redirect_type'] == 'no')?'':'['.$data['new']['redirect_type'].']',
                  'rewrite_target'    => $rewrite_target,
                  'rewrite_target_ssl' => $rewrite_target_ssl);
               $rewrite_rules[] = array(   'rewrite_domain'    => '^www.'.$data['new']['domain'],
                  'rewrite_target_ssl' => $rewrite_target_ssl,
                        'rewrite_is_url'    => ($this->_is_url($rewrite_target) ? 'y' : 'n'));
               $rewrite_rules[] = array(   'rewrite_domain'    => '^' . $this->_rewrite_quote('www.'.$data['new']['domain']),
                     'rewrite_type'       => ($data['new']['redirect_type'] == 'no')?'':'['.$data['new']['redirect_type'].']',
                     'rewrite_target'    => $rewrite_target,
                     'rewrite_target_ssl' => $rewrite_target_ssl);
                     'rewrite_target_ssl' => $rewrite_target_ssl,
                            'rewrite_is_url'    => ($this->_is_url($rewrite_target) ? 'y' : 'n'));
               break;
            case '*':
               $rewrite_rules[] = array(   'rewrite_domain'    => '(^|\.)'.$data['new']['domain'],
               $rewrite_rules[] = array(   'rewrite_domain'    => '(^|\.)'.$this->_rewrite_quote($data['new']['domain']),
                  'rewrite_type'       => ($data['new']['redirect_type'] == 'no')?'':'['.$data['new']['redirect_type'].']',
                  'rewrite_target'    => $rewrite_target,
                  'rewrite_target_ssl' => $rewrite_target_ssl);
                  'rewrite_target_ssl' => $rewrite_target_ssl,
                        'rewrite_is_url'    => ($this->_is_url($rewrite_target) ? 'y' : 'n'));
               break;
            default:
               $rewrite_rules[] = array(   'rewrite_domain'    => '^'.$data['new']['domain'],
               $rewrite_rules[] = array(   'rewrite_domain'    => '^'.$this->_rewrite_quote($data['new']['domain']),
                  'rewrite_type'       => ($data['new']['redirect_type'] == 'no')?'':'['.$data['new']['redirect_type'].']',
                  'rewrite_target'    => $rewrite_target,
                  'rewrite_target_ssl' => $rewrite_target_ssl);
                  'rewrite_target_ssl' => $rewrite_target_ssl,
                        'rewrite_is_url'    => ($this->_is_url($rewrite_target) ? 'y' : 'n'));
         }
      }
      
@@ -920,7 +924,7 @@
         unset($client);
         unset($aa_search);
         unset($aa_replace);
         $server_alias[] .= $auto_alias;
         $server_alias[] .= $auto_alias.' ';
      }
      
      // get alias domains (co-domains and subdomains)
@@ -965,26 +969,32 @@
               
               switch($alias['subdomain']) {
                  case 'www':
                     $rewrite_rules[] = array(   'rewrite_domain'    => '^'.$alias['domain'],
                     $rewrite_rules[] = array(   'rewrite_domain'    => '^'.$this->_rewrite_quote($alias['domain']),
                        'rewrite_type'       => ($alias['redirect_type'] == 'no')?'':'['.$alias['redirect_type'].']',
                        'rewrite_target'    => $rewrite_target,
                        'rewrite_target_ssl' => $rewrite_target_ssl);
                     $rewrite_rules[] = array(   'rewrite_domain'    => '^www.'.$alias['domain'],
                        'rewrite_target_ssl' => $rewrite_target_ssl,
                                'rewrite_is_url'    => ($this->_is_url($rewrite_target) ? 'y' : 'n'));
                     $rewrite_rules[] = array(   'rewrite_domain'    => '^' . $this->_rewrite_quote('www.'.$alias['domain']),
                           'rewrite_type'       => ($alias['redirect_type'] == 'no')?'':'['.$alias['redirect_type'].']',
                           'rewrite_target'    => $rewrite_target,
                           'rewrite_target_ssl' => $rewrite_target_ssl);
                           'rewrite_target_ssl' => $rewrite_target_ssl,
                                    'rewrite_is_url'    => ($this->_is_url($rewrite_target) ? 'y' : 'n'));
                     break;
                  case '*':
                     $rewrite_rules[] = array(   'rewrite_domain'    => '(^|\.)'.$alias['domain'],
                     $rewrite_rules[] = array(   'rewrite_domain'    => '(^|\.)'.$this->_rewrite_quote($alias['domain']),
                        'rewrite_type'       => ($alias['redirect_type'] == 'no')?'':'['.$alias['redirect_type'].']',
                        'rewrite_target'    => $rewrite_target,
                        'rewrite_target_ssl' => $rewrite_target_ssl);
                        'rewrite_target_ssl' => $rewrite_target_ssl,
                                'rewrite_is_url'    => ($this->_is_url($rewrite_target) ? 'y' : 'n'));
                     break;
                  default:
                     $rewrite_rules[] = array(   'rewrite_domain'    => '^'.$alias['domain'],
                            if(substr($alias['domain'], 0, 2) === '*.') $domain_rule = '(^|\.)'.$this->_rewrite_quote(substr($alias['domain'], 2));
                            else $domain_rule = '^'.$this->_rewrite_quote($alias['domain']);
                     $rewrite_rules[] = array(   'rewrite_domain'    => $domain_rule,
                        'rewrite_type'       => ($alias['redirect_type'] == 'no')?'':'['.$alias['redirect_type'].']',
                        'rewrite_target'    => $rewrite_target,
                        'rewrite_target_ssl' => $rewrite_target_ssl);
                        'rewrite_target_ssl' => $rewrite_target_ssl,
                                'rewrite_is_url'    => ($this->_is_url($rewrite_target) ? 'y' : 'n'));
               }
            }
         }
@@ -1344,7 +1354,7 @@
            $app->system->web_folder_protection($data['new']['document_root'],false);
            $app->system->file_put_contents($data['new']['document_root'].'/.htpasswd_stats',$htp_file);
            $app->system->web_folder_protection($data['new']['document_root'],true);
            $app->system->chmod($data['new']['document_root'].'/.htpasswd_stats',0755);
            $app->system->chmod($data['new']['document_root'].'/.htpasswd_stats',0750);
            unset($htp_file);
         }
      }
@@ -1452,7 +1462,7 @@
      $app->uses('system');
      $web_config = $app->getconf->get_server_config($conf['server_id'], 'web');
      
      $app->system->web_folder_protection($data['new']['document_root'],false);
      $app->system->web_folder_protection($data['old']['document_root'],false);

      //* Check if this is a chrooted setup
      if($web_config['website_basedir'] != '' && @is_file($web_config['website_basedir'].'/etc/passwd')) {
@@ -1460,6 +1470,24 @@
      } else {
         $apache_chrooted = false;
      }
		
      //* Remove the mounts
      $log_folder = 'log';
        $web_folder = '';
        if($data['old']['type'] == 'vhostsubdomain') {
            $tmp = $app->db->queryOneRecord('SELECT `domain`,`document_root` FROM web_domain WHERE domain_id = '.intval($data['old']['parent_domain_id']));
            $subdomain_host = preg_replace('/^(.*)\.' . preg_quote($tmp['domain'], '/') . '$/', '$1', $data['old']['domain']);
            if($subdomain_host == '') $subdomain_host = 'web'.$data['old']['domain_id'];
            $web_folder = $data['old']['web_folder'];
            $log_folder .= '/' . $subdomain_host;
            unset($tmp);
      }
        
      exec('umount '.escapeshellarg($data['old']['document_root'].'/'.$log_folder));
		
      //* remove mountpoint from fstab
      $fstab_line = '/var/log/ispconfig/httpd/'.$data['old']['domain'].' '.$data['old']['document_root'].'/'.$log_folder.'    none    bind    0 0';
      $app->system->removeLine('/etc/fstab',$fstab_line);

      if($data['old']['type'] != 'vhost' && $data['old']['type'] != 'vhostsubdomain' && $data['old']['parent_domain_id'] > 0) {
         //* This is a alias domain or subdomain, so we have to update the website instead
@@ -1495,9 +1523,12 @@
         $app->system->unlink($vhost_file);
         $app->log('Removing vhost file: '.$vhost_file,LOGLEVEL_DEBUG);
            
            if($data['old']['type'] == 'vhost') {
            if($data['old']['type'] == 'vhost' || $data['old']['type'] == 'vhostsubdomain') {
                $docroot = escapeshellcmd($data['old']['document_root']);
                if($docroot != '' && !stristr($docroot,'..')) exec('rm -rf '.$docroot);
                if($docroot != '' && !stristr($docroot,'..')) {
                    if($data['old']['type'] == 'vhost') exec('rm -rf '.$docroot);
                    elseif(!stristr($data['old']['web_folder'], '..')) exec('rm -rf '.$docroot.'/'.$web_folder);
                }
         
                //remove the php fastgi starter script if available
                if ($data['old']['php'] == 'fast-cgi') {
@@ -1558,8 +1589,6 @@
                    }
                }
                // end removing symlinks
            } else {
                // vhost subdomain
            }

            // Delete the log file directory
@@ -1581,6 +1610,10 @@
                $this->awstats_delete($data,$web_config);
            }
         
         if($data['old']['type'] == 'vhostsubdomain') {
            $app->system->web_folder_protection($parent_web_document_root,true);
         }
			
         if($apache_chrooted) {
            $app->services->restartServiceDelayed('httpd','restart');
         } else {
@@ -1589,6 +1622,7 @@
         }

      }
        if($data['old']['type'] != 'vhost') $app->system->web_folder_protection($data['old']['document_root'],true);
   }

   //* This function is called when a IP on the server is inserted, updated or deleted
@@ -1681,8 +1715,8 @@
      
      //* Create empty .htpasswd file, if it does not exist
      if(!is_file($folder_path.'.htpasswd')) {
         touch($folder_path.'.htpasswd');
         $app->system->chmod($folder_path.'.htpasswd',0755);
         $app->system->touch($folder_path.'.htpasswd');
         $app->system->chmod($folder_path.'.htpasswd',0750);
         $app->system->chown($folder_path.'.htpasswd',$website['system_user']);
         $app->system->chgrp($folder_path.'.htpasswd',$website['system_group']);
         $app->log('Created file '.$folder_path.'.htpasswd',LOGLEVEL_DEBUG);
@@ -1720,12 +1754,26 @@
      
      //* Create the .htaccess file
      //if(!is_file($folder_path.'.htaccess')) {
         $ht_file = "AuthType Basic\nAuthName \"Members Only\"\nAuthUserFile ".$folder_path.".htpasswd\nrequire valid-user";
         $app->system->file_put_contents($folder_path.'.htaccess',$ht_file);
         $app->system->chmod($folder_path.'.htaccess',0755);
         $begin_marker = '### ISPConfig folder protection begin ###';
            $end_marker = "### ISPConfig folder protection end ###\n\n";
            $ht_file = $begin_marker."\nAuthType Basic\nAuthName \"Members Only\"\nAuthUserFile ".$folder_path.".htpasswd\nrequire valid-user\n".$end_marker;
			
            if(file_exists($folder_path.'.htaccess')) {
                $old_content = $app->system->file_get_contents($folder_path.'.htaccess');
                
                if(preg_match('/' . preg_quote($begin_marker, '/') . '(.*?)' . preg_quote($end_marker, '/') . '/s', $old_content, $matches)) {
                    $ht_file = str_replace($matches[0], $ht_file, $old_content);
                } else {
                    $ht_file .= $old_content;
                }
            }
            unset($old_content);
            
            $app->system->file_put_contents($folder_path.'.htaccess',$ht_file);
         $app->system->chmod($folder_path.'.htaccess',0750);
         $app->system->chown($folder_path.'.htaccess',$website['system_user']);
         $app->system->chgrp($folder_path.'.htaccess',$website['system_group']);
         $app->log('Created file '.$folder_path.'.htaccess',LOGLEVEL_DEBUG);
         $app->log('Created/modified file '.$folder_path.'.htaccess',LOGLEVEL_DEBUG);
      //}
      
   }
@@ -1767,8 +1815,24 @@
      
      //* Remove .htaccess file
      if(is_file($folder_path.'.htaccess')) {
         $app->system->unlink($folder_path.'.htaccess');
         $app->log('Removed file '.$folder_path.'.htaccess',LOGLEVEL_DEBUG);
            $begin_marker = '### ISPConfig folder protection begin ###';
            $end_marker = "### ISPConfig folder protection end ###\n\n";
            
            $ht_file = $app->system->file_get_contents($folder_path.'.htaccess');
            
            if(preg_match('/' . preg_quote($begin_marker, '/') . '(.*?)' . preg_quote($end_marker, '/') . '/s', $ht_file, $matches)) {
                $ht_file = str_replace($matches[0], '', $ht_file);
            } else {
                $ht_file = str_replace("AuthType Basic\nAuthName \"Members Only\"\nAuthUserFile ".$folder_path.".htpasswd\nrequire valid-user", '', $ht_file);
            }
            
            if(trim($ht_file) == '') {
                $app->system->unlink($folder_path.'.htaccess');
                $app->log('Removed file '.$folder_path.'.htaccess',LOGLEVEL_DEBUG);
            } else {
                $app->system->file_put_contents($folder_path.'.htaccess', $ht_file);
                $app->log('Removed protection content from file '.$folder_path.'.htaccess',LOGLEVEL_DEBUG);
            }
      }
   }
   
@@ -1820,6 +1884,9 @@
      //* Create the folder path, if it does not exist
      if(!is_dir($new_folder_path)) $app->system->mkdirpath($new_folder_path);
      
        $begin_marker = '### ISPConfig folder protection begin ###';
        $end_marker = "### ISPConfig folder protection end ###\n\n";
        
      if($data['old']['path'] != $data['new']['path']) {

      
@@ -1831,26 +1898,63 @@
         
         //* delete old .htaccess file
         if(is_file($old_folder_path.'.htaccess')) {
            $app->system->unlink($old_folder_path.'.htaccess');
            $app->log('Deleted file '.$old_folder_path.'.htaccess',LOGLEVEL_DEBUG);
                $ht_file = $app->system->file_get_contents($old_folder_path.'.htaccess');
                
                if(preg_match('/' . preg_quote($begin_marker, '/') . '(.*?)' . preg_quote($end_marker, '/') . '/s', $ht_file, $matches)) {
                    $ht_file = str_replace($matches[0], '', $ht_file);
                } else {
                    $ht_file = str_replace("AuthType Basic\nAuthName \"Members Only\"\nAuthUserFile ".$old_folder_path.".htpasswd\nrequire valid-user", '', $ht_file);
                }
                
                if(trim($ht_file) == '') {
                    $app->system->unlink($old_folder_path.'.htaccess');
                    $app->log('Removed file '.$old_folder_path.'.htaccess',LOGLEVEL_DEBUG);
                } else {
                    $app->system->file_put_contents($old_folder_path.'.htaccess', $ht_file);
                    $app->log('Removed protection content from file '.$old_folder_path.'.htaccess',LOGLEVEL_DEBUG);
                }
         }
      
      }
      
      //* Create the .htaccess file
      if($data['new']['active'] == 'y') {
         $ht_file = "AuthType Basic\nAuthName \"Members Only\"\nAuthUserFile ".$new_folder_path.".htpasswd\nrequire valid-user";
         $app->system->file_put_contents($new_folder_path.'.htaccess',$ht_file);
         $app->system->chmod($new_folder_path.'.htpasswd',0755);
         $app->system->chown($folder_path.'.htpasswd',$website['system_user']);
         $app->system->chgrp($folder_path.'.htpasswd',$website['system_group']);
         $app->log('Created file '.$new_folder_path.'.htpasswd',LOGLEVEL_DEBUG);
            $ht_file = $begin_marker."\nAuthType Basic\nAuthName \"Members Only\"\nAuthUserFile ".$new_folder_path.".htpasswd\nrequire valid-user\n".$end_marker;
			
            if(file_exists($new_folder_path.'.htaccess')) {
                $old_content = $app->system->file_get_contents($new_folder_path.'.htaccess');
                
                if(preg_match('/' . preg_quote($begin_marker, '/') . '(.*?)' . preg_quote($end_marker, '/') . '/s', $old_content, $matches)) {
                    $ht_file = str_replace($matches[0], $ht_file, $old_content);
                } else {
                    $ht_file .= $old_content;
                }
            }
            
            $app->system->file_put_contents($new_folder_path.'.htaccess',$ht_file);
         $app->system->chmod($new_folder_path.'.htaccess',0750);
         $app->system->chown($new_folder_path.'.htaccess',$website['system_user']);
         $app->system->chgrp($new_folder_path.'.htaccess',$website['system_group']);
         $app->log('Created/modified file '.$new_folder_path.'.htaccess',LOGLEVEL_DEBUG);
      }
      
      //* Remove .htaccess file
      if($data['new']['active'] == 'n' && is_file($new_folder_path.'.htaccess')) {
         $app->system->unlink($new_folder_path.'.htaccess');
         $app->log('Removed file '.$new_folder_path.'.htaccess',LOGLEVEL_DEBUG);
            $ht_file = $app->system->file_get_contents($new_folder_path.'.htaccess');
            
            if(preg_match('/' . preg_quote($begin_marker, '/') . '(.*?)' . preg_quote($end_marker, '/') . '/s', $ht_file, $matches)) {
                $ht_file = str_replace($matches[0], '', $ht_file);
            } else {
                $ht_file = str_replace("AuthType Basic\nAuthName \"Members Only\"\nAuthUserFile ".$new_folder_path.".htpasswd\nrequire valid-user", '', $ht_file);
            }
            
            if(trim($ht_file) == '') {
                $app->system->unlink($new_folder_path.'.htaccess');
                $app->log('Removed file '.$new_folder_path.'.htaccess',LOGLEVEL_DEBUG);
            } else {
                $app->system->file_put_contents($new_folder_path.'.htaccess', $ht_file);
                $app->log('Removed protection content from file '.$new_folder_path.'.htaccess',LOGLEVEL_DEBUG);
            }
      }
      
      
@@ -2014,6 +2118,8 @@
    * @param string $pwd      The password-hash of the user
    */
   private function _writeHtDigestFile($filename, $username, $authname, $pwdhash ) {
      global $app;
		
      $changed = false;
      if(is_file($filename) && !is_link($filename)) {
         $in = fopen($filename, 'r');
@@ -2167,7 +2273,11 @@
      }
      
      if(is_file($data['new']['document_root']."/" . $web_folder . "/stats/index.html")) $app->system->unlink($data['new']['document_root']."/" . $web_folder . "/stats/index.html");
      $app->system->copy("/usr/local/ispconfig/server/conf/awstats_index.php.master",$data['new']['document_root']."/" . $web_folder . "/stats/index.php");
      if(file_exists("/usr/local/ispconfig/server/conf-custom/awstats_index.php.master")) {
         $app->system->copy("/usr/local/ispconfig/server/conf-custom/awstats_index.php.master",$data['new']['document_root']."/" . $web_folder . "/stats/index.php");
      } else {
         $app->system->copy("/usr/local/ispconfig/server/conf/awstats_index.php.master",$data['new']['document_root']."/" . $web_folder . "/stats/index.php");
      }
   }
   
   //* Delete the awstats configuration file
@@ -2273,27 +2383,31 @@
         $ini_settings = explode("\n", $custom_php_ini_settings);
         if(is_array($ini_settings) && !empty($ini_settings)){
            foreach($ini_settings as $ini_setting){
                  list($key, $value) = explode('=', $ini_setting);
                  if($value){
                     $value = escapeshellcmd(trim($value));
                     $key = escapeshellcmd(trim($key));
                     switch (strtolower($value)) {
                        case '0':
                           // PHP-FPM might complain about invalid boolean value if you use 0
                           $value = 'off';
                        case '1':
                        case 'on':
                        case 'off':
                        case 'true':
                        case 'false':
                        case 'yes':
                        case 'no':
                           $final_php_ini_settings[] = array('ini_setting' => 'php_admin_flag['.$key.'] = '.$value);
                           break;
                        default:
                           $final_php_ini_settings[] = array('ini_setting' => 'php_admin_value['.$key.'] = '.$value);
                     }
               $ini_setting = trim($ini_setting);
               if(substr($ini_setting,0,1) == ';') continue;
               if(substr($ini_setting,0,1) == '#') continue;
               if(substr($ini_setting,0,2) == '//') continue;
               list($key, $value) = explode('=', $ini_setting);
               if($value){
                  $value = trim($value);
                  $key = trim($key);
                  switch (strtolower($value)) {
                     case '0':
                        // PHP-FPM might complain about invalid boolean value if you use 0
                        $value = 'off';
                     case '1':
                     case 'on':
                     case 'off':
                     case 'true':
                     case 'false':
                     case 'yes':
                     case 'no':
                        $final_php_ini_settings[] = array('ini_setting' => 'php_admin_flag['.$key.'] = '.$value);
                        break;
                     default:
                        $final_php_ini_settings[] = array('ini_setting' => 'php_admin_value['.$key.'] = '.$value);
                  }
               }
            }
         }
      }
@@ -2467,6 +2581,14 @@
      return symlink($cfrom, $to);
   }

    private function _rewrite_quote($string) {
        return str_replace(array('.', '*', '?', '+'), array('\\.', '\\*', '\\?', '\\+'), $string);
    }
    
    private function _is_url($string) {
        return preg_match('/^(f|ht)tp(s)?:\/\//i', $string);
    }
    
} // end class

?>