allow configuring user backends in config.php

lib/base.php

@@ -351,6 +351,9 @@ class OC{
 			}
 		}
 
+		//setup extra user backends
+		OC_User::setupBackends();
+
 		// register cache cleanup jobs
 		OC_BackgroundJob_RegularTask::register('OC_Cache_FileGlobal', 'gc');
 		OC_Hook::connect('OC_User', 'post_login', 'OC_Cache_File', 'loginListener');
@@ -423,6 +426,7 @@ class OC{
 		// Someone is logged in :
 		if(OC_User::isLoggedIn()) {
 			OC_App::loadApps();
+			OC_User::setupBackends();
 			if(isset($_GET["logout"]) and ($_GET["logout"])) {
 				OC_User::logout();
 				header("Location: ".OC::$WEBROOT.'/');
@@ -469,7 +473,7 @@ class OC{
 	}
 
 	protected static function handleLogin() {
-		OC_App::loadApps(array('prelogin','authentication'));
+		OC_App::loadApps(array('prelogin'));
 		$error = false;
 		// remember was checked after last login
 		if (OC::tryRememberLogin()) {
@@ -517,7 +521,12 @@ class OC{
 		|| ($_SESSION['sectoken']!=$_POST['sectoken']) ) {
 			return false;
 		}
+
 		OC_App::loadApps();
+		
+		//setup extra user backends
+		OC_User::setupBackends();
+		
 		if(OC_User::login($_POST["user"], $_POST["password"])) {
 			if(!empty($_POST["remember_login"])){
 				if(defined("DEBUG") && DEBUG) {

lib/user.php

@@ -39,6 +39,8 @@
 class OC_User {
 	// The backend used for user management
 	private static $_usedBackends = array();
+	
+	private static $_setupedBackends = array();
 
 	// Backends available (except database)
 	private static $_backends = array();
@@ -114,6 +116,28 @@ class OC_User {
 		self::$_usedBackends=array();
 	}
 
+	/**
+	 * setup the configured backends in config.php
+	 */
+	public static function setupBackends(){
+		$backends=OC_Config::getValue('user_backends',array());
+		foreach($backends as $i=>$config){
+			$class=$config['class'];
+			$arguments=$config['arguments'];
+			if(class_exists($class) and array_search($i,self::$_setupedBackends)===false){
+				// make a reflection object
+				$reflectionObj = new ReflectionClass($class);
+
+				// use Reflection to create a new instance, using the $args
+				$backend = $reflectionObj->newInstanceArgs($arguments);
+				self::useBackend($backend);
+				$_setupedBackends[]=$i;
+			}else{
+				OC_Log::write('core','User backend '.$class.' not found.',OC_Log::ERROR);
+			}
+		}
+	}
+
 	/**
 	 * @brief Create a new user
 	 * @param $uid The username of the user to create
@@ -253,6 +277,7 @@ class OC_User {
 	public static function isLoggedIn(){
 		if( isset($_SESSION['user_id']) AND $_SESSION['user_id']) {
 			OC_App::loadApps(array('authentication'));
+			self::setupBackends();
 			if (self::userExists($_SESSION['user_id']) ){
 				return true;
 			}