Secondary DNS functionality for PowerDNS and Bind

dcy

2010-07-17 a59731a3cc9c0fc6fba481e83d56ebd22ed3c87d

 server/plugins-available/bind_plugin.inc.php

@@ -63,6 +63,11 @@
      $app->plugins->registerEvent('dns_soa_insert',$this->plugin_name,'soa_insert');
      $app->plugins->registerEvent('dns_soa_update',$this->plugin_name,'soa_update');
      $app->plugins->registerEvent('dns_soa_delete',$this->plugin_name,'soa_delete');

    //* SLAVE
      $app->plugins->registerEvent('dns_slave_insert',$this->plugin_name,'slave_insert');
      $app->plugins->registerEvent('dns_slave_update',$this->plugin_name,'slave_update');
      $app->plugins->registerEvent('dns_slave_delete',$this->plugin_name,'slave_delete');
      
      //* RR
      $app->plugins->registerEvent('dns_rr_insert',$this->plugin_name,'rr_insert');
@@ -90,7 +95,7 @@
      $dns_config = $app->getconf->get_server_config($conf["server_id"], 'dns');
      
      //* Write the domain file
      if(!empty($zone['id'])) {
      if(!empty($data['new']['id'])) {
         $tpl = new tpl();
         $tpl->newTemplate("bind_pri.domain.master");
      
@@ -99,6 +104,7 @@
      
         $records = $app->db->queryAllRecords("SELECT * FROM dns_rr WHERE zone = ".$zone['id']." AND active = 'Y'");
         $tpl->setLoop('zones',$records);
			
      
         $filename = escapeshellcmd($dns_config['bind_zonefiles_dir'].'/pri.'.substr($zone['origin'],0,-1));
         $app->log("Writing BIND domain file: ".$filename,LOGLEVEL_DEBUG);
@@ -106,6 +112,7 @@
         exec('chown '.escapeshellcmd($dns_config['bind_user']).':'.escapeshellcmd($dns_config['bind_group']).' '.$filename);
         unset($tpl);
         unset($records);
         unset($records_out);
         unset($zone);
      }
      
@@ -129,20 +136,75 @@
      global $app, $conf;
      
      //* load the server configuration options
      $app->uses("getconf");
      $app->uses("getconf,tpl");
      $dns_config = $app->getconf->get_server_config($conf["server_id"], 'dns');
      
      //* rebuild the named.conf file
      $this->write_named_conf($data,$dns_config);
      
      //* Delete the domain file
      $filename = $dns_config['bind_zonefiles_dir'].'/pri.'.substr($data['old']['origin'],0,-1);
      if(is_file($filename)) unset($filename);
      $app->log("Deleting BIND domain file: ".$filename,LOGLEVEL_DEBUG);
      $zone_file_name = $dns_config['bind_zonefiles_dir'].'/pri.'.substr($data['old']['origin'],0,-1);
      if(is_file($zone_file_name)) unlink($zone_file_name);
      $app->log("Deleting BIND domain file: ".$zone_file_name,LOGLEVEL_DEBUG);
      
      //* Reload bind nameserver
      $app->services->restartServiceDelayed('bind','reload');
         
   }

   function slave_insert($event_name,$data) {
      global $app, $conf;
		
      $this->action = 'insert';
      $this->slave_update($event_name,$data);
		
   }
	
   function slave_update($event_name,$data) {
      global $app, $conf;
		
      //* Load libraries
      $app->uses("getconf,tpl");
		
      //* load the server configuration options
      $dns_config = $app->getconf->get_server_config($conf["server_id"], 'dns');
		
      //* rebuild the named.conf file if the origin has changed or when the origin is inserted.
      //if($this->action == 'insert' || $data['old']['origin'] != $data['new']['origin']) {
      $this->write_named_conf($data,$dns_config);
      //}
		
      //* Delete old domain file, if domain name has been changed
      if($data['old']['origin'] != $data['new']['origin']) {
         $filename = $dns_config['bind_zonefiles_dir'].'/slave/sec.'.substr($data['old']['origin'],0,-1);
         if(is_file($filename)) unset($filename);
      }
		
      //* Reload bind nameserver
      $app->services->restartServiceDelayed('bind','reload');
     		
   }
	
   function slave_delete($event_name,$data) {
      global $app, $conf;
		
		
      //* load the server configuration options
      $app->uses("getconf,tpl");
      $dns_config = $app->getconf->get_server_config($conf["server_id"], 'dns');
		
      //* rebuild the named.conf file
      $this->write_named_conf($data,$dns_config);
		
      //* Delete the domain file
      $zone_file_name = $dns_config['bind_zonefiles_dir'].'/slave/sec.'.substr($data['old']['origin'],0,-1);
      if(is_file($zone_file_name)) unlink($zone_file_name);
      $app->log("Deleting BIND domain file for secondary zone: ".$zone_file_name,LOGLEVEL_DEBUG);
		
      //* Reload bind nameserver
      $app->services->restartServiceDelayed('bind','reload');
			
		
   }
   
   function rr_insert($event_name,$data) {
@@ -185,22 +247,66 @@
   
   function write_named_conf($data, $dns_config) {
      global $app, $conf;
		
      $tmps = $app->db->queryAllRecords("SELECT origin FROM dns_soa WHERE active = 'Y'");
	
      //* Only write the master file for the current server	
      $tmps = $app->db->queryAllRecords("SELECT origin, xfer, also_notify FROM dns_soa WHERE active = 'Y' AND server_id=".$conf["server_id"]);
      $zones = array();

      foreach($tmps as $tmp) {
			
         $options = '';
         if(trim($tmp['xfer']) != '') {
            $options .= "        allow-transfer {".str_replace(',',';',$tmp['xfer']).";};\n";
         } else {
            $options .= "        allow-transfer {none;};\n";
         }
         if(trim($tmp['also_notify']) != '') $options .= '        also-notify {'.str_replace(',',';',$tmp['also_notify']).";};\n";
			
         $zones[] = array(   'zone' => substr($tmp['origin'],0,-1),
                        'zonefile_path' => $dns_config['bind_zonefiles_dir'].'/pri.'.substr($tmp['origin'],0,-1)
                        'zonefile_path' => $dns_config['bind_zonefiles_dir'].'/pri.'.substr($tmp['origin'],0,-1),
                        'options' => $options
                     );
      }
		

      $tpl = new tpl();
      $tpl->newTemplate("bind_named.conf.local.master");
      $tpl->setLoop('zones',$zones);
      
      file_put_contents($dns_config['named_conf_local_path'],$tpl->grab());
      $app->log("Writing BIND named.conf.local file: ".$dns_config['named_conf_local_path'],LOGLEVEL_DEBUG);
      //* And loop through the secondary zones, but only for the current server
      $tmps_sec = $app->db->queryAllRecords("SELECT origin, xfer, ns FROM dns_slave WHERE active = 'Y' AND server_id=".$conf["server_id"]);
      $zones_sec = array();

      foreach($tmps_sec as $tmp) {
			
         $options = "        masters {".$tmp['ns'].";};\n";
            if(trim($tmp['xfer']) != '') {
                $options .= "        allow-transfer {".str_replace(',',';',$tmp['xfer']).";};\n";
            } else {
                $options .= "        allow-transfer {none;};\n";
            }

			
         $zones_sec[] = array(   'zone' => substr($tmp['origin'],0,-1),
                           'zonefile_path' => $dns_config['bind_zonefiles_dir'].'/slave/sec.'.substr($tmp['origin'],0,-1),
                           'options' => $options
                        );

//         $filename = escapeshellcmd($dns_config['bind_zonefiles_dir'].'/slave/sec.'.substr($tmp['origin'],0,-1));
//         $app->log("Writing BIND domain file: ".$filename,LOGLEVEL_DEBUG);

					
      }
      
      $tpl_sec = new tpl();
      $tpl_sec->newTemplate("bind_named.conf.local.slave");
      $tpl_sec->setLoop('zones',$zones_sec); 
    		
      file_put_contents($dns_config['named_conf_local_path'],$tpl->grab()."\n".$tpl_sec->grab()); 
      $app->log("Writing BIND named.conf.local file: ".$dns_config['named_conf_local_path'],LOGLEVEL_DEBUG);

       unset($tpl_sec); 
      unset($zones_sec); 
      unset($tmps_sec);  
      unset($tpl);
      unset($zones);
      unset($tmps);
@@ -212,4 +318,4 @@

} // end class

?>
?>