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- <?php
- /* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4 foldmethod=marker: */
-
- /**
- * Auth Controller
- *
- * PHP versions 4 and 5
- *
- * LICENSE: This source file is subject to version 3.01 of the PHP license
- * that is available through the world-wide-web at the following URI:
- * http://www.php.net/license/3_01.txt. If you did not receive a copy of
- * the PHP License and are unable to obtain it through the web, please
- * send a note to license@php.net so we can mail you a copy immediately.
- *
- * @category Authentication
- * @package Auth
- * @author Yavor Shahpasov <yavo@netsmart.com.cy>
- * @author Adam Ashley <aashley@php.net>
- * @copyright 2001-2006 The PHP Group
- * @license http://www.php.net/license/3_01.txt PHP License 3.01
- * @version CVS: $Id: Controller.php,v 1.10 2006/03/02 06:53:08 aashley Exp $
- * @link http://pear.php.net/package/Auth
- * @since File available since Release 1.3.0
- */
-
- /**
- * Controlls access to a group of php access
- * and redirects to a predefined login page as
- * needed
- *
- * In all pages
- * <code>
- * include_once('Auth.php');
- * include_once('Auth/Controller.php');
- * $_auth = new Auth('File', 'passwd');
- * $authController = new Auth_Controller($_auth, 'login.php', 'index.php');
- * $authController->start();
- * </code>
- *
- * In login.php
- * <code>
- * include_once('Auth.php');
- * include_once('Auth/Controller.php');
- * $_auth = new Auth('File', 'passwd');
- * $authController = new Auth_Controller($_auth, 'login.php', 'index.php');
- * $authController->start();
- * if( $authController->isAuthorised() ){
- * $authController->redirectBack();
- * }
- * </code>
- *
- * @category Authentication
- * @author Yavor Shahpasov <yavo@netsmart.com.cy>
- * @author Adam Ashley <aashley@php.net>
- * @copyright 2001-2006 The PHP Group
- * @license http://www.php.net/license/3_01.txt PHP License 3.01
- * @version Release: 1.3.0 File: $Revision: 1.10 $
- * @link http://pear.php.net/package/Auth
- * @since Class available since Release 1.3.0
- */
- class Auth_Controller
- {
-
- // {{{ properties
-
- /**
- * The Auth instance this controller is managing
- *
- * @var object Auth
- */
- var $auth = null;
-
- /**
- * The login URL
- * @var string
- * */
- var $login = null;
-
- /**
- * The default index page to use when the caller page is not set
- *
- * @var string
- */
- var $default = null;
-
- /**
- * If this is set to true after a succesfull login the
- * Auth_Controller::redirectBack() is invoked automatically
- *
- * @var boolean
- */
- var $autoRedirectBack = false;
-
- // }}}
- // {{{ Auth_Controller() [constructor]
-
- /**
- * Constructor
- *
- * @param Auth An auth instance
- * @param string The login page
- * @param string The default page to go to if return page is not set
- * @param array Some rules about which urls need to be sent to the login page
- * @return void
- * @todo Add a list of urls which need redirection
- */
- function Auth_Controller(&$auth_obj, $login='login.php', $default='index.php', $accessList=array())
- {
- $this->auth =& $auth_obj;
- $this->_loginPage = $login;
- $this->_defaultPage = $default;
- @session_start();
- if (!empty($_GET['return']) && $_GET['return'] && !strstr($_GET['return'], $this->_loginPage)) {
- $this->auth->setAuthData('returnUrl', $_GET['return']);
- }
-
- if(!empty($_GET['authstatus']) && $this->auth->status == '') {
- $this->auth->status = $_GET['authstatus'];
- }
- }
-
- // }}}
- // {{{ setAutoRedirectBack()
-
- /**
- * Enables auto redirection when login is done
- *
- * @param bool Sets the autoRedirectBack flag to this
- * @see Auth_Controller::autoRedirectBack
- * @return void
- */
- function setAutoRedirectBack($flag = true)
- {
- $this->autoRedirectBack = $flag;
- }
-
- // }}}
- // {{{ redirectBack()
-
- /**
- * Redirects Back to the calling page
- *
- * @return void
- */
- function redirectBack()
- {
- // If redirectback go there
- // else go to the default page
-
- $returnUrl = $this->auth->getAuthData('returnUrl');
- if(!$returnUrl) {
- $returnUrl = $this->_defaultPage;
- }
-
- // Add some entropy to the return to make it unique
- // avoind problems with cached pages and proxies
- if(strpos($returnUrl, '?') === false) {
- $returnUrl .= '?';
- }
- $returnUrl .= uniqid('');
-
- // Track the auth status
- if($this->auth->status != '') {
- $url .= '&authstatus='.$this->auth->status;
- }
- header('Location:'.$returnUrl);
- print("You could not be redirected to <a href=\"$returnUrl\">$returnUrl</a>");
- }
-
- // }}}
- // {{{ redirectLogin()
-
- /**
- * Redirects to the login Page if not authorised
- *
- * put return page on the query or in auth
- *
- * @return void
- */
- function redirectLogin()
- {
- // Go to the login Page
-
- // For Auth, put some check to avoid infinite redirects, this should at least exclude
- // the login page
-
- $url = $this->_loginPage;
- if(strpos($url, '?') === false) {
- $url .= '?';
- }
-
- if(!strstr($_SERVER['PHP_SELF'], $this->_loginPage)) {
- $url .= 'return='.urlencode($_SERVER['PHP_SELF']);
- }
-
- // Track the auth status
- if($this->auth->status != '') {
- $url .= '&authstatus='.$this->auth->status;
- }
-
- header('Location:'.$url);
- print("You could not be redirected to <a href=\"$url\">$url</a>");
- }
-
- // }}}
- // {{{ start()
-
- /**
- * Starts the Auth Procedure
- *
- * If the page requires login the user is redirected to the login page
- * otherwise the Auth::start is called to initialize Auth
- *
- * @return void
- * @todo Implement an access list which specifies which urls/pages need login and which do not
- */
- function start()
- {
- // Check the accessList here
- // ACL should be a list of urls with allow/deny
- // If allow set allowLogin to false
- // Some wild card matching should be implemented ?,*
- if(!strstr($_SERVER['PHP_SELF'], $this->_loginPage) && !$this->auth->checkAuth()) {
- $this->redirectLogin();
- } else {
- $this->auth->start();
- // Logged on and on login page
- if(strstr($_SERVER['PHP_SELF'], $this->_loginPage) && $this->auth->checkAuth()){
- $this->autoRedirectBack ?
- $this->redirectBack() :
- null ;
- }
- }
-
-
- }
-
- // }}}
- // {{{ isAuthorised()
-
- /**
- * Checks is the user is logged on
- * @see Auth::checkAuth()
- */
- function isAuthorised()
- {
- return($this->auth->checkAuth());
- }
-
- // }}}
- // {{{ checkAuth()
-
- /**
- * Proxy call to auth
- * @see Auth::checkAuth()
- */
- function checkAuth()
- {
- return($this->auth->checkAuth());
- }
-
- // }}}
- // {{{ logout()
-
- /**
- * Proxy call to auth
- * @see Auth::logout()
- */
- function logout()
- {
- return($this->auth->logout());
- }
-
- // }}}
- // {{{ getUsername()
-
- /**
- * Proxy call to auth
- * @see Auth::getUsername()
- */
- function getUsername()
- {
- return($this->auth->getUsername());
- }
-
- // }}}
- // {{{ getStatus()
-
- /**
- * Proxy call to auth
- * @see Auth::getStatus()
- */
- function getStatus()
- {
- return($this->auth->getStatus());
- }
-
- // }}}
-
- }
-
- ?>
-