-<?php
-/**
- * A concrete filter for validating the email address. This filter may intercept
- * the filter chain if no email address is given or if the supplied email has an
- * invalid form. It could also intercept the filter chain if the email address
- * is already used by some one if configuration requires this.
- *
- * @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 EmailValidatorFilter extends BaseFilter implements Filterable {
- /**
- * Protected constructor
- *
- * @return void
- */
- protected function __construct () {
- // Call parent constructor
- parent::__construct(__CLASS__);
- }
-
- /**
- * Creates an instance of this filter class
- *
- * @return $filterInstance An instance of this filter class
- */
- public final static function createEmailValidatorFilter () {
- // Get a new instance
- $filterInstance = new EmailValidatorFilter();
-
- // 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
- */
- public function execute (Requestable $requestInstance, Responseable $responseInstance) {
- // Get Email from request
- $email = $requestInstance->getRequestElement('email');
-
- // Is the Email set?
- if ((is_null($email)) || ($this->getConfigInstance()->readConfig('register_email_unique') === "Y")) {
- // Try it again
- $email1 = $requestInstance->getRequestElement('email1');
- $email2 = $requestInstance->getRequestElement('email2');
-
- // Is the email still not set?
- if ((is_null($email1)) || (is_null($email2))) {
- // Not found in form so stop the filtering process
- $requestInstance->requestIsValid(false);
-
- // Add a message to the response
- $responseInstance->addFatalMessage('email_unset');
-
- // Abort here
- return false;
- } elseif ((empty($email1)) || (empty($email2))) {
- // Email is empty
- $requestInstance->requestIsValid(false);
-
- // Is the email empty?
- if (empty($email1)) {
- // Add a message to the response
- $responseInstance->addFatalMessage('email1_empty');
- } // END - if
-
- // Is the confirmation empty?
- if (empty($email2)) {
- // Add a message to the response
- $responseInstance->addFatalMessage('email2_empty');
- } // END - if
-
- // Abort here
- return false;
- } elseif ($this->ifEmailIsTaken($email1)) {
- // Email is already taken
- $requestInstance->requestIsValid(false);
-
- // Add a message to the response
- $responseInstance->addFatalMessage('email_taken');
-
- // Abort here
- return false;
- } elseif ($email1 != $email2) {
- // Emails didn't match
- $requestInstance->requestIsValid(false);
-
- // Add a message to the response
- $responseInstance->addFatalMessage('emails_mismatch');
-
- // Abort here
- return false;
- } // END - elseif
- } elseif (empty($email)) {
- // Empty field!
- $requestInstance->requestIsValid(false);
-
- // Add a message to the response
- $responseInstance->addFatalMessage('email_empty');
-
- // Abort here
- return false;
- } // END - elseif
- }
-
- /**
- * Check wether the email as already been taken
- *
- * @param $email Email to check for existence
- * @return $alreadyTaken Wether the email has been taken
- */
- private function ifEmailIsTaken ($email) {
- // Default is already taken
- $alreadyTaken = true;
-
- // Initialize instance
- $userInstance = null;
-
- // Get a registry instance
- $registry = Registry::getRegistry();
-
- // Is the user already there?
- if ($registry->instanceExists('user')) {
- // Use the instance for checking for the email
- $userInstance = $registry->getInstance('user');
- $userInstance->setEmailAddress($email);
- } else {
- // If this instance is created then the username *does* exist
- $userInstance = call_user_func_array(array($this->getConfigInstance()->readConfig('user_class'), 'createMemberByEmail'), array($email));
-
- // Remember this user instance in our registry for later usage
- $registry->addInstance('user', $userInstance);
- }
-
- // Does the email exist?
- if (!$userInstance->ifEmailAddressExists()) {
- // This email has not being used yet
- $alreadyTaken = false;
- }
-
- // Return the result
- return $alreadyTaken;
- }
-}
-
-// [EOF]
-?>
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