diff -r 000000000000 -r 4eba9c11703f web/Zend/Captcha/ReCaptcha.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/Zend/Captcha/ReCaptcha.php	Mon Dec 13 18:29:26 2010 +0100
@@ -0,0 +1,266 @@
+<?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_Captcha
+ * @subpackage Adapter
+ * @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_Captcha_Base */
+require_once 'Zend/Captcha/Base.php';
+
+/** @see Zend_Service_ReCaptcha */
+require_once 'Zend/Service/ReCaptcha.php';
+
+/**
+ * ReCaptcha adapter
+ *
+ * Allows to insert captchas driven by ReCaptcha service
+ *
+ * @see http://recaptcha.net/apidocs/captcha/
+ *
+ * @category   Zend
+ * @package    Zend_Captcha
+ * @subpackage Adapter
+ * @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: ReCaptcha.php 20096 2010-01-06 02:05:09Z bkarwin $
+ */
+class Zend_Captcha_ReCaptcha extends Zend_Captcha_Base
+{
+    /**@+
+     * ReCaptcha Field names
+     * @var string
+     */
+    protected $_CHALLENGE = 'recaptcha_challenge_field';
+    protected $_RESPONSE  = 'recaptcha_response_field';
+    /**@-*/
+
+    /**
+     * Recaptcha service object
+     *
+     * @var Zend_Service_Recaptcha
+     */
+    protected $_service;
+
+    /**
+     * Parameters defined by the service
+     *
+     * @var array
+     */
+    protected $_serviceParams = array();
+
+    /**
+     * Options defined by the service
+     *
+     * @var array
+     */
+    protected $_serviceOptions = array();
+
+    /**#@+
+     * Error codes
+     */
+    const MISSING_VALUE = 'missingValue';
+    const ERR_CAPTCHA   = 'errCaptcha';
+    const BAD_CAPTCHA   = 'badCaptcha';
+    /**#@-*/
+
+    /**
+     * Error messages
+     * @var array
+     */
+    protected $_messageTemplates = array(
+        self::MISSING_VALUE => 'Missing captcha fields',
+        self::ERR_CAPTCHA   => 'Failed to validate captcha',
+        self::BAD_CAPTCHA   => 'Captcha value is wrong: %value%',
+    );
+
+    /**
+     * Retrieve ReCaptcha Private key
+     *
+     * @return string
+     */
+    public function getPrivkey()
+    {
+        return $this->getService()->getPrivateKey();
+    }
+
+    /**
+     * Retrieve ReCaptcha Public key
+     *
+     * @return string
+     */
+    public function getPubkey()
+    {
+        return $this->getService()->getPublicKey();
+    }
+
+    /**
+     * Set ReCaptcha Private key
+     *
+     * @param string $privkey
+     * @return Zend_Captcha_ReCaptcha
+     */
+    public function setPrivkey($privkey)
+    {
+        $this->getService()->setPrivateKey($privkey);
+        return $this;
+    }
+
+    /**
+     * Set ReCaptcha public key
+     *
+     * @param string $pubkey
+     * @return Zend_Captcha_ReCaptcha
+     */
+    public function setPubkey($pubkey)
+    {
+        $this->getService()->setPublicKey($pubkey);
+        return $this;
+    }
+
+    /**
+     * Constructor
+     *
+     * @param  array|Zend_Config $options
+     * @return void
+     */
+    public function __construct($options = null)
+    {
+        $this->setService(new Zend_Service_ReCaptcha());
+        $this->_serviceParams = $this->getService()->getParams();
+        $this->_serviceOptions = $this->getService()->getOptions();
+
+        parent::__construct($options);
+
+        if ($options instanceof Zend_Config) {
+            $options = $options->toArray();
+        }
+        if (!empty($options)) {
+            $this->setOptions($options);
+        }
+    }
+
+    /**
+     * Set service object
+     *
+     * @param  Zend_Service_ReCaptcha $service
+     * @return Zend_Captcha_ReCaptcha
+     */
+    public function setService(Zend_Service_ReCaptcha $service)
+    {
+        $this->_service = $service;
+        return $this;
+    }
+
+    /**
+     * Retrieve ReCaptcha service object
+     *
+     * @return Zend_Service_ReCaptcha
+     */
+    public function getService()
+    {
+        return $this->_service;
+    }
+
+    /**
+     * Set option
+     *
+     * If option is a service parameter, proxies to the service. The same
+     * goes for any service options (distinct from service params)
+     *
+     * @param  string $key
+     * @param  mixed $value
+     * @return Zend_Captcha_ReCaptcha
+     */
+    public function setOption($key, $value)
+    {
+        $service = $this->getService();
+        if (isset($this->_serviceParams[$key])) {
+            $service->setParam($key, $value);
+            return $this;
+        }
+        if (isset($this->_serviceOptions[$key])) {
+            $service->setOption($key, $value);
+            return $this;
+        }
+        return parent::setOption($key, $value);
+    }
+
+    /**
+     * Generate captcha
+     *
+     * @see Zend_Form_Captcha_Adapter::generate()
+     * @return string
+     */
+    public function generate()
+    {
+        return "";
+    }
+
+    /**
+     * Validate captcha
+     *
+     * @see    Zend_Validate_Interface::isValid()
+     * @param  mixed $value
+     * @return boolean
+     */
+    public function isValid($value, $context = null)
+    {
+        if (!is_array($value) && !is_array($context)) {
+            $this->_error(self::MISSING_VALUE);
+            return false;
+        }
+
+        if (!is_array($value) && is_array($context)) {
+            $value = $context;
+        }
+
+        if (empty($value[$this->_CHALLENGE]) || empty($value[$this->_RESPONSE])) {
+            $this->_error(self::MISSING_VALUE);
+            return false;
+        }
+
+        $service = $this->getService();
+
+        $res = $service->verify($value[$this->_CHALLENGE], $value[$this->_RESPONSE]);
+
+        if (!$res) {
+            $this->_error(self::ERR_CAPTCHA);
+            return false;
+        }
+
+        if (!$res->isValid()) {
+            $this->_error(self::BAD_CAPTCHA, $res->getErrorCode());
+            $service->setParam('error', $res->getErrorCode());
+            return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * Render captcha
+     *
+     * @param  Zend_View_Interface $view
+     * @param  mixed $element
+     * @return string
+     */
+    public function render(Zend_View_Interface $view = null, $element = null)
+    {
+        return $this->getService()->getHTML();
+    }
+}