From b230beea20bc18f05d51b8e1f76c99c74a12fff4 Mon Sep 17 00:00:00 2001
From: wei <>
Date: Mon, 17 Jul 2006 07:29:51 +0000
Subject: Add "remember me" feature

---
 .../protected/App_Code/TrackerAuthManager.php      | 85 ++++++++++++++++++++++
 1 file changed, 85 insertions(+)
 create mode 100644 demos/time-tracker/protected/App_Code/TrackerAuthManager.php

(limited to 'demos/time-tracker/protected/App_Code')

diff --git a/demos/time-tracker/protected/App_Code/TrackerAuthManager.php b/demos/time-tracker/protected/App_Code/TrackerAuthManager.php
new file mode 100644
index 00000000..4ee01a37
--- /dev/null
+++ b/demos/time-tracker/protected/App_Code/TrackerAuthManager.php
@@ -0,0 +1,85 @@
+<?php
+/**
+ * Custom Authentication manager permits authentication using
+ * a string token saved in the cookie.
+ *
+ * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
+ * @version $Revision: $  $16/07/2006: $
+ * @package Demos
+ * @since 3.1
+ */
+class TrackerAuthManager extends TAuthManager
+{
+	/**
+	 * @const string signon token cookie name.
+	 */
+	const SignonCookieName = 'time-tracker-signon';
+	
+	/**
+	 * Performs the real authentication work. Overrides and calls parent
+	 * implementation. Trys to authenticate using token saved in cookie. 
+	 * @param mixed parameter to be passed to OnAuthenticate event
+	 */
+	public function onAuthenticate($param)
+	{
+		parent::onAuthenticate($param);
+		$currentUser = $this->Application->User; 
+		if(!$currentUser || $currentUser->IsGuest)
+			$this->authenticateFromCookie($param);
+	}
+	
+	/**
+	 * If the user is not set or is still a guest, try to authenticate the user
+	 * using a string token saved in the cookie if any.
+	 * @param mixed parameter to be passed to OnAuthenticate event 
+	 */
+	protected function authenticateFromCookie($param)
+	{
+		$cookie = $this->Request->Cookies[self::SignonCookieName];
+		if(!is_null($cookie))
+		{
+			$daos = $this->getApplication()->getModule('daos');
+			$userDao = $daos->getDao('UserDao');
+			$user = $userDao->validateSignon($cookie->Value);
+			if($user instanceof TimeTrackerUser)
+				$this->updateCredential($user);
+		}
+	}
+	
+	/**
+	 * Changes the user credentials.
+	 * @param TUser new user details.
+	 */
+	public function updateCredential($user)
+	{
+		$user->IsGuest = false;
+		$this->updateSessionUser($user);
+		$this->Application->User = $user;		
+	}
+	
+	/**
+	 * Generate a token to be saved in the cookie for later authentication.
+	 * @param TimeTrackerUser user details.
+	 */
+	public function rememberSignon($user)
+	{
+		$daos = $this->getApplication()->getModule('daos');
+		$userDao = $daos->getDao('UserDao');
+		$token = $userDao->createSignonToken($user);
+		$cookie = new THttpCookie(self::SignonCookieName, $token);
+		$cookie->Expire = strtotime('+1 month');
+		$this->Response->Cookies[] = $cookie;
+	}
+	
+	/**
+	 * Logs out the user and delete the token from cookie.
+	 */
+	public function logout()
+	{
+		parent::logout();
+		$cookie = new THttpCookie(self::SignonCookieName,'');
+		$this->Response->Cookies[] = $cookie;
+	}
+}
+
+?>
\ No newline at end of file
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