поддержка хуков

classes/engine/Engine.class.php

@@ -139,6 +139,26 @@ class Engine extends Object {
 			closedir($hDirConfig);
 		}
 	}
+	/**
+	 * Регистрирует хуки из /classes/hooks/
+	 *
+	 */
+	public function InitHooks() {
+		$sDirHooks=DIR_SERVER_ROOT.'/classes/hooks/';
+		if ($hDir = opendir($sDirHooks)) {
+			while (false !== ($sFile = readdir($hDir))) {
+				if ($sFile !='.' and $sFile !='..' and is_file($sDirHooks.$sFile)) {
+					if (preg_match("/^Hook([\w]+)\.class\.php$/i",$sFile,$aMatch)) {
+						require_once($sDirHooks.$sFile);
+						$sClassName='Hook'.$aMatch[1];
+						$oHook=new $sClassName;
+						$oHook->RegisterHook();
+					}										
+				}
+			}
+			closedir($hDir);
+		}
+	}
 	/**
 	 * Вызывает метод нужного модуля
 	 *

classes/engine/Hook.class.php

@@ -0,0 +1,38 @@
+<?
+/*-------------------------------------------------------
+*
+*   LiveStreet Engine Social Networking
+*   Copyright © 2008 Mzhelskiy Maxim
+*
+*--------------------------------------------------------
+*
+*   Official site: www.livestreet.ru
+*   Contact e-mail: rus.engine@gmail.com
+*
+*   GNU General Public License, version 2:
+*   http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+*
+---------------------------------------------------------
+*/
+
+/**
+ * Абстракция модуля, от которой наследуются все модули
+ *
+ */
+abstract class Hook extends Object {
+		
+	public function __construct() {		
+		
+	}
+	
+	protected function AddHook($sName,$sCallBack,$sClassNameHook,$iPriority=1) {
+		$this->Hook_AddExecHook($sName,$sCallBack,$iPriority,array('sClassName'=>$sClassNameHook));
+	}
+		
+	abstract public function RegisterHook();
+	
+	public function __call($sName,$aArgs) {
+		return Engine::getInstance()->_CallModule($sName,$aArgs);
+	}
+}
+?>

classes/engine/Router.class.php

@@ -24,6 +24,7 @@ set_include_path(get_include_path().PATH_SEPARATOR.dirname(__FILE__));
 require_once("Object.class.php");
 require_once("Action.class.php");
 require_once("Block.class.php");
+require_once("Hook.class.php");
 require_once("Module.class.php");
 require_once("Engine.class.php");
 
@@ -96,6 +97,7 @@ class Router extends Object {
 	public function Exec() {
 		$this->oEngine=Engine::getInstance();
 		$this->oEngine->InitModules();		
+		$this->oEngine->InitHooks();
 		$this->ExecAction();		
 		$this->AssignVars();
 		$this->Viewer_VarAssign();	

classes/hooks/.htaccess

@@ -0,0 +1,2 @@
+Order Deny,Allow
+Deny from all

classes/modules/sys_hook/Hook.class.php

@@ -0,0 +1,96 @@
+<?
+/*-------------------------------------------------------
+*
+*   LiveStreet Engine Social Networking
+*   Copyright © 2008 Mzhelskiy Maxim
+*
+*--------------------------------------------------------
+*
+*   Official site: www.livestreet.ru
+*   Contact e-mail: rus.engine@gmail.com
+*
+*   GNU General Public License, version 2:
+*   http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+*
+---------------------------------------------------------
+*/
+/**
+ * Модуль поддержки хуков(hooks)
+ *
+ */
+class LsHook extends Module {		
+		
+	/**
+	 * Содержит список хуков
+	 *
+	 * @var array( 'name' => array(
+	 * 		array(
+	 * 			'type' => 'module' | 'hook' | 'function',
+	 * 			'callback' => 'callback_name',
+	 * 			'priority'	=> 1,
+	 * 			'params' => array()
+	 * 		),
+	 * 	),
+	 * )
+	 */
+	protected $aHooks=array();
+	
+	/**
+	 * Инициализация модуля
+	 *
+	 */
+	public function Init() {	
+		
+	}
+	
+	public function Add($sName,$sType,$sCallBack,$iPriority=1,$aParams=array()) {
+		$sType=strtolower($sType);
+		if (!in_array($sType,array('module','hook','function'))) {
+			return false;
+		}
+		$this->aHooks[$sName][]=array('type'=>$sType,'callback'=>$sCallBack,'params'=>$aParams,'priority'=>(int)$iPriority);
+	}
+	
+	public function AddExecModule($sName,$sCallBack,$iPriority=1) {
+		return $this->Add($sName,'module',$sCallBack,$iPriority);
+	}
+	
+	public function AddExecFunction($sName,$sCallBack,$iPriority=1) {
+		return $this->Add($sName,'function',$sCallBack,$iPriority);
+	}
+	
+	public function AddExecHook($sName,$sCallBack,$iPriority=1,$aParams=array()) {
+		return $this->Add($sName,'hook',$sCallBack,$iPriority,$aParams);
+	}
+	
+	public function Run($sName,$aVars) {
+		if (isset($this->aHooks[$sName])) {
+			$aHookNum=array();
+			for ($i=0;$i<count($this->aHooks[$sName]);$i++) {
+				$aHookNum[$i]=$this->aHooks[$sName][$i]['priority'];
+			}			
+			arsort($aHookNum,SORT_NUMERIC);
+			foreach ($aHookNum as $iKey => $iPr) {
+				$aHook=$this->aHooks[$sName][$iKey];
+				switch ($aHook['type']) {
+					case 'module':
+						call_user_func_array(array($this,$aHook['callback']),array($aVars));
+						break;
+					case 'function':
+						call_user_func_array($aHook['callback'],array($aVars));
+						break;
+					case 'hook':
+						if (isset($aHook['params']['sClassName']) and class_exists($aHook['params']['sClassName'])) {
+							$oHook=new $aHook['params']['sClassName'];							
+							call_user_func_array(array($oHook,$aHook['callback']),array($aVars));
+						}											
+						break;
+					default:
+						break;
+				}
+				
+			}
+		}
+	}	
+}
+?>