Added DNS server module.

Author: tbrehm

server/mods-available/dns_module.inc.php

@@ -0,0 +1,105 @@
+<?php
+
+/*
+Copyright (c) 2009, Till Brehm, projektfarm Gmbh
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright notice,
+      this list of conditions and the following disclaimer in the documentation
+      and/or other materials provided with the distribution.
+    * Neither the name of ISPConfig nor the names of its contributors
+      may be used to endorse or promote products derived from this software without
+      specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+class dns_module {
+	
+	var $module_name = 'dns_module';
+	var $class_name = 'dns_module';
+	var $actions_available = array(	'dns_soa_insert',
+									'dns_soa_update',
+									'dns_soa_delete',
+									'dns_rr_insert',
+									'dns_rr_update',
+									'dns_rr_delete');
+	
+	//* This function is called during ispconfig installation to determine
+	//  if a symlink shall be created for this plugin.
+	function onInstall() {
+		global $conf;
+		
+		return true;
+		
+	}
+	
+	/*
+	 	This function is called when the module is loaded
+	*/
+	
+	function onLoad() {
+		global $app;
+		
+		/*
+		Annonce the actions that where provided by this module, so plugins 
+		can register on them.
+		*/
+		
+		$app->plugins->announceEvents($this->module_name,$this->actions_available);
+		
+		/*
+		As we want to get notified of any changes on several database tables,
+		we register for them.
+		
+		The following function registers the function "functionname"
+ 		to be executed when a record for the table "dbtable" is 
+ 		processed in the sys_datalog. "classname" is the name of the
+ 		class that contains the function functionname.
+		*/
+		
+		$app->modules->registerTableHook('dns_soa',$this->module_name,'process');
+		$app->modules->registerTableHook('dns_rr',$this->module_name,'process');
+		
+	}
+	
+	/*
+	 This function is called when a change in one of the registered tables is detected.
+	 The function then raises the events for the plugins.
+	*/
+
+	function process($tablename,$action,$data) {
+		global $app;
+		
+		switch ($tablename) {
+			case 'dns_soa':
+				if($action == 'i') $app->plugins->raiseEvent('dns_soa_insert',$data);
+				if($action == 'u') $app->plugins->raiseEvent('dns_soa_update',$data);
+				if($action == 'd') $app->plugins->raiseEvent('dns_soa_delete',$data);
+			break;
+			case 'dns_rr':
+				if($action == 'i') $app->plugins->raiseEvent('dns_rr_insert',$data);
+				if($action == 'u') $app->plugins->raiseEvent('dns_rr_update',$data);
+				if($action == 'd') $app->plugins->raiseEvent('dns_rr_delete',$data);
+			break;
+		} // end switch
+	} // end function
+	
+
+} // end class
+
+?>