--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/web/lib/Zend/Service/ReCaptcha/MailHide.php Fri Mar 11 15:05:35 2011 +0100
@@ -0,0 +1,351 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category Zend
+ * @package Zend_Service
+ * @subpackage ReCaptcha
+ * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license http://framework.zend.com/license/new-bsd New BSD License
+ */
+
+/** @see Zend_Service_ReCaptcha */
+require_once 'Zend/Service/ReCaptcha.php';
+
+/**
+ * Zend_Service_ReCaptcha_MailHide
+ *
+ * @category Zend
+ * @package Zend_Service
+ * @subpackage ReCaptcha
+ * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license http://framework.zend.com/license/new-bsd New BSD License
+ * @version $Id: MailHide.php 20108 2010-01-06 22:05:31Z matthew $
+ */
+class Zend_Service_ReCaptcha_MailHide extends Zend_Service_ReCaptcha
+{
+ /**#@+
+ * Encryption constants
+ */
+ const ENCRYPTION_MODE = MCRYPT_MODE_CBC;
+ const ENCRYPTION_CIPHER = MCRYPT_RIJNDAEL_128;
+ const ENCRYPTION_BLOCK_SIZE = 16;
+ const ENCRYPTION_IV = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
+ /**#@-*/
+
+ /**
+ * Url to the mailhide server
+ *
+ * @var string
+ */
+ const MAILHIDE_SERVER = 'http://mailhide.recaptcha.net/d';
+
+ /**
+ * The email address to protect
+ *
+ * @var string
+ */
+ protected $_email = null;
+
+ /**
+ * @var Zend_Validate_Interface
+ */
+ protected $_emailValidator;
+
+ /**
+ * Binary representation of the private key
+ *
+ * @var string
+ */
+ protected $_privateKeyPacked = null;
+
+ /**
+ * The local part of the email
+ *
+ * @var string
+ */
+ protected $_emailLocalPart = null;
+
+ /**
+ * The domain part of the email
+ *
+ * @var string
+ */
+ protected $_emailDomainPart = null;
+
+ /**
+ * Local constructor
+ *
+ * @param string $publicKey
+ * @param string $privateKey
+ * @param string $email
+ * @param array|Zend_Config $options
+ */
+ public function __construct($publicKey = null, $privateKey = null, $email = null, $options = null)
+ {
+ /* Require the mcrypt extension to be loaded */
+ $this->_requireMcrypt();
+
+ /* If options is a Zend_Config object we want to convert it to an array so we can merge it with the default options */
+ if ($options instanceof Zend_Config) {
+ $options = $options->toArray();
+ }
+
+ /* Merge if needed */
+ if (is_array($options)) {
+ $options = array_merge($this->getDefaultOptions(), $options);
+ } else {
+ $options = $this->getDefaultOptions();
+ }
+
+ parent::__construct($publicKey, $privateKey, null, $options);
+
+ if ($email !== null) {
+ $this->setEmail($email);
+ }
+ }
+
+
+ /**
+ * Get emailValidator
+ *
+ * @return Zend_Validate_Interface
+ */
+ public function getEmailValidator()
+ {
+ if (null === $this->_emailValidator) {
+ require_once 'Zend/Validate/EmailAddress.php';
+ $this->setEmailValidator(new Zend_Validate_EmailAddress());
+ }
+ return $this->_emailValidator;
+ }
+
+ /**
+ * Set email validator
+ *
+ * @param Zend_Validate_Interface $validator
+ * @return Zend_Service_ReCaptcha_MailHide
+ */
+ public function setEmailValidator(Zend_Validate_Interface $validator)
+ {
+ $this->_emailValidator = $validator;
+ return $this;
+ }
+
+
+ /**
+ * See if the mcrypt extension is available
+ *
+ * @throws Zend_Service_ReCaptcha_MailHide_Exception
+ */
+ protected function _requireMcrypt()
+ {
+ if (!extension_loaded('mcrypt')) {
+ /** @see Zend_Service_ReCaptcha_MailHide_Exception */
+ require_once 'Zend/Service/ReCaptcha/MailHide/Exception.php';
+
+ throw new Zend_Service_ReCaptcha_MailHide_Exception('Use of the Zend_Service_ReCaptcha_MailHide component requires the mcrypt extension to be enabled in PHP');
+ }
+ }
+
+ /**
+ * Serialize as string
+ *
+ * When the instance is used as a string it will display the email address. Since we can't
+ * throw exceptions within this method we will trigger a user warning instead.
+ *
+ * @return string
+ */
+ public function __toString()
+ {
+ try {
+ $return = $this->getHtml();
+ } catch (Exception $e) {
+ $return = '';
+ trigger_error($e->getMessage(), E_USER_WARNING);
+ }
+
+ return $return;
+ }
+
+ /**
+ * Get the default set of parameters
+ *
+ * @return array
+ */
+ public function getDefaultOptions()
+ {
+ return array(
+ 'encoding' => 'UTF-8',
+ 'linkTitle' => 'Reveal this e-mail address',
+ 'linkHiddenText' => '...',
+ 'popupWidth' => 500,
+ 'popupHeight' => 300,
+ );
+ }
+
+ /**
+ * Override the setPrivateKey method
+ *
+ * Override the parent method to store a binary representation of the private key as well.
+ *
+ * @param string $privateKey
+ * @return Zend_Service_ReCaptcha_MailHide
+ */
+ public function setPrivateKey($privateKey)
+ {
+ parent::setPrivateKey($privateKey);
+
+ /* Pack the private key into a binary string */
+ $this->_privateKeyPacked = pack('H*', $this->_privateKey);
+
+ return $this;
+ }
+
+ /**
+ * Set the email property
+ *
+ * This method will set the email property along with the local and domain parts
+ *
+ * @param string $email
+ * @return Zend_Service_ReCaptcha_MailHide
+ */
+ public function setEmail($email)
+ {
+ $this->_email = $email;
+
+ $validator = $this->getEmailValidator();
+ if (!$validator->isValid($email)) {
+ require_once 'Zend/Service/ReCaptcha/MailHide/Exception.php';
+ throw new Zend_Service_ReCaptcha_MailHide_Exception('Invalid email address provided');
+ }
+
+ $emailParts = explode('@', $email, 2);
+
+ /* Decide on how much of the local part we want to reveal */
+ if (strlen($emailParts[0]) <= 4) {
+ $emailParts[0] = substr($emailParts[0], 0, 1);
+ } else if (strlen($emailParts[0]) <= 6) {
+ $emailParts[0] = substr($emailParts[0], 0, 3);
+ } else {
+ $emailParts[0] = substr($emailParts[0], 0, 4);
+ }
+
+ $this->_emailLocalPart = $emailParts[0];
+ $this->_emailDomainPart = $emailParts[1];
+
+ return $this;
+ }
+
+ /**
+ * Get the email property
+ *
+ * @return string
+ */
+ public function getEmail()
+ {
+ return $this->_email;
+ }
+
+ /**
+ * Get the local part of the email address
+ *
+ * @return string
+ */
+ public function getEmailLocalPart()
+ {
+ return $this->_emailLocalPart;
+ }
+
+ /**
+ * Get the domain part of the email address
+ *
+ * @return string
+ */
+ public function getEmailDomainPart()
+ {
+ return $this->_emailDomainPart;
+ }
+
+ /**
+ * Get the HTML code needed for the mail hide
+ *
+ * @param string $email
+ * @return string
+ * @throws Zend_Service_ReCaptcha_MailHide_Exception
+ */
+ public function getHtml($email = null)
+ {
+ if ($email !== null) {
+ $this->setEmail($email);
+ } elseif (null === ($email = $this->getEmail())) {
+ /** @see Zend_Service_ReCaptcha_MailHide_Exception */
+ require_once 'Zend/Service/ReCaptcha/MailHide/Exception.php';
+ throw new Zend_Service_ReCaptcha_MailHide_Exception('Missing email address');
+ }
+
+ if ($this->_publicKey === null) {
+ /** @see Zend_Service_ReCaptcha_MailHide_Exception */
+ require_once 'Zend/Service/ReCaptcha/MailHide/Exception.php';
+ throw new Zend_Service_ReCaptcha_MailHide_Exception('Missing public key');
+ }
+
+ if ($this->_privateKey === null) {
+ /** @see Zend_Service_ReCaptcha_MailHide_Exception */
+ require_once 'Zend/Service/ReCaptcha/MailHide/Exception.php';
+ throw new Zend_Service_ReCaptcha_MailHide_Exception('Missing private key');
+ }
+
+ /* Generate the url */
+ $url = $this->_getUrl();
+
+ $enc = $this->getOption('encoding');
+
+ /* Genrate the HTML used to represent the email address */
+ $html = htmlentities($this->getEmailLocalPart(), ENT_COMPAT, $enc)
+ . '<a href="'
+ . htmlentities($url, ENT_COMPAT, $enc)
+ . '" onclick="window.open(\''
+ . htmlentities($url, ENT_COMPAT, $enc)
+ . '\', \'\', \'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width='
+ . $this->_options['popupWidth']
+ . ',height='
+ . $this->_options['popupHeight']
+ . '\'); return false;" title="'
+ . $this->_options['linkTitle']
+ . '">' . $this->_options['linkHiddenText'] . '</a>@'
+ . htmlentities($this->getEmailDomainPart(), ENT_COMPAT, $enc);
+
+ return $html;
+ }
+
+ /**
+ * Get the url used on the "hidden" part of the email address
+ *
+ * @return string
+ */
+ protected function _getUrl()
+ {
+ /* Figure out how much we need to pad the email */
+ $numPad = self::ENCRYPTION_BLOCK_SIZE - (strlen($this->_email) % self::ENCRYPTION_BLOCK_SIZE);
+
+ /* Pad the email */
+ $emailPadded = str_pad($this->_email, strlen($this->_email) + $numPad, chr($numPad));
+
+ /* Encrypt the email */
+ $emailEncrypted = mcrypt_encrypt(self::ENCRYPTION_CIPHER, $this->_privateKeyPacked, $emailPadded, self::ENCRYPTION_MODE, self::ENCRYPTION_IV);
+
+ /* Return the url */
+ return self::MAILHIDE_SERVER . '?k=' . $this->_publicKey . '&c=' . strtr(base64_encode($emailEncrypted), '+/', '-_');
+ }
+}