3 * A concrete filter for validating the password. This filter may intercept
4 * the filter chain if no password is given or the password is invalid
6 * @author Roland Haeder <webmaster@ship-simu.org>
8 * @copyright Copyright (c) 2007, 2008 Roland Haeder, 2009, 2010 Core Developer Team
9 * @license GNU GPL 3.0 or any newer version
10 * @link http://www.ship-simu.org
12 * This program is free software: you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation, either version 3 of the License, or
15 * (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program. If not, see <http://www.gnu.org/licenses/>.
25 class PasswordVerifierFilter extends BaseFilter implements Filterable {
27 * Protected constructor
31 protected function __construct () {
32 // Call parent constructor
33 parent::__construct(__CLASS__);
37 * Creates an instance of this filter class
39 * @return $filterInstance An instance of this filter class
41 public static final function createPasswordVerifierFilter () {
43 $filterInstance = new PasswordVerifierFilter();
45 // Return the instance
46 return $filterInstance;
50 * Executes the filter with given request and response objects
52 * @param $requestInstance An instance of a class with an Requestable interface
53 * @param $responseInstance An instance of a class with an Responseable interface
55 * @throws FilterChainException If this filter fails to operate
57 public function execute (Requestable $requestInstance, Responseable $responseInstance) {
59 $password = $requestInstance->getRequestElement('pass');
61 // Is the password still not set?
62 if (is_null($password)) {
63 // Not found in form so stop the filtering process
64 $requestInstance->requestIsValid(false);
66 // Add a message to the response
67 $responseInstance->addFatalMessage('password_unset');
70 throw new FilterChainException($this, self::EXCEPTION_FILTER_CHAIN_INTERCEPTED);
71 } elseif (empty($password)) {
73 $requestInstance->requestIsValid(false);
75 // Add a message to the response
76 $responseInstance->addFatalMessage('password_empty');
79 throw new FilterChainException($this, self::EXCEPTION_FILTER_CHAIN_INTERCEPTED);