+++ /dev/null
-<?php
-/**
- * A filter for checking if value "encrypt" is set and fine
- *
- * @author Roland Haeder <webmaster@ship-simu.org>
- * @version 0.0.0
- * @copyright Copyright (c) 2007, 2008 Roland Haeder, this is free software
- * @license GNU GPL 3.0 or any newer version
- * @link http://www.ship-simu.org
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-class CaptchaEncryptFilter extends BaseFilter implements Filterable {
- /**
- * Protected constructor
- *
- * @return void
- */
- protected function __construct () {
- // Call parent constructor
- parent::__construct(__CLASS__);
- }
-
- /**
- * Creates an instance of this filter class
- *
- * @param $controllerInstance An instance of a Controller class
- * @return $filterInstance An instance of this filter class
- */
- public final static function createCaptchaEncryptFilter (Controller $controllerInstance) {
- // Get a new instance
- $filterInstance = new CaptchaEncryptFilter();
-
- // Set the controller
- $filterInstance->setControllerInstance($controllerInstance);
-
- // Return the instance
- return $filterInstance;
- }
-
- /**
- * Executes the filter with given request and response objects
- *
- * @param $requestInstance An instance of a class with an Requestable interface
- * @param $responseInstance An instance of a class with an Responseable interface
- * @return void
- * @throws EncryptMissingException If the "encrypt" value is not set
- */
- public function execute (Requestable $requestInstance, Responseable $responseInstance) {
- // Get "encrypt" string barely from the request
- $encryptRequest = $requestInstance->getRequestElement('encrypt');
-
- // Is it there?
- if (is_null($encryptRequest)) {
- // Not found, so request is invalid
- $requestInstance->requestIsValid(false);
-
- // Throw exception
- throw new EncryptMissingException($this, CryptoHelper::EXCEPTION_ENCRYPT_MISSING);
- } // END - if
-
- // Decode it fully
- $encryptDecoded = base64_decode(str_replace(" ", "+", urldecode($encryptRequest)));
-
- // Get a crypto helper and decrypt the string
- $decryptedString = ObjectFactory::createObjectByConfiguredName('crypto_class')->decryptString($encryptDecoded);
-
- // Is it the expected length?
- if (strlen($decryptedString) != $this->getConfigInstance()->readConfig('captcha_string_length')) {
- // Not found, so request is invalid
- $requestInstance->requestIsValid(false);
-
- // Throw exception
- throw new EncryptInvalidLengthException($this, CryptoHelper::EXCEPTION_ENCRYPT_INVALID);
- } // END - if
-
- // Write it to the request
- $requestInstance->setRequestElement('decrypted', $decryptedString);
- }
-}
-
-// [EOF]
-?>