syj session controller helper

[syj.git] / application / controllers / helpers / SyjSession.php

diff --git a/application/controllers/helpers/SyjSession.php b/application/controllers/helpers/SyjSession.php
new file mode 100644 (file)
index 0000000..702bfa2
--- /dev/null
+++ b/application/controllers/helpers/SyjSession.php
@@ -0,0 +1,56 @@
+<?php
+/*  This file is part of Syj, Copyright (c) 2010 Arnaud Renevier,
+    and is published under the AGPL license. */
+
+class Syj_Controller_Action_Helper_SyjSession extends Zend_Controller_Action_Helper_Abstract
+{
+    protected static $cache = array();
+
+    static public function login($userid) {
+        $userMapper = new Syj_Model_UserMapper();
+        $user = new Syj_Model_User();
+        if (!$userMapper->find($userid, $user)) {
+            throw new Zend_Exception();
+        }
+
+        $storage = Zend_Auth::getInstance()->getStorage();
+        $storage->clear();
+        $storage->write(array('user' => $user->id));
+        Zend_Session::rememberMe(); // zend default expiration delay is 2 weeks. Ok, use that value
+    }
+
+    static public function logout() {
+        Zend_Session::start();
+        Zend_Session::destroy();
+    }
+
+    static public function user() {
+        try {
+            $sessionStorage = Zend_Auth::getInstance()->getStorage();
+        } catch(Exception $e) {
+            return null;
+        }
+        $sessionData = $sessionStorage->read();
+        if ($sessionStorage->isEmpty()) {
+            return null;
+        }
+
+        $id = $sessionData['user'];
+        if (!isset($id)) {
+            return null;
+        }
+        if (isset (self::$cache[$id])) {
+            return self::$cache[$id];
+        }
+
+        $userMapper = new Syj_Model_UserMapper();
+        $user = new Syj_Model_User();
+        if ($userMapper->find($id, $user)) {
+            self::$cache[$id] = $user;
+            return $user;
+        } else {
+            self::logout();
+            return null;
+        }
+    }
+}