--- /dev/null
+<?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 BaseFrameworkSystem implements Filterable {
+ /**
+ * Protected constructor
+ *
+ * @return void
+ */
+ protected function __construct () {
+ // Call parent constructor
+ parent::__construct(__CLASS__);
+
+ // Set part description
+ $this->setObjectDescription("A filter for Email validation");
+
+ // Create unique ID number
+ $this->generateUniqueId();
+
+ // Clean up a little
+ $this->removeNumberFormaters();
+ $this->removeSystemArray();
+ }
+
+ /**
+ * 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'), "createUserByEmail"), 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]
+?>
projects / hub.git / blobdiff