diff -r 5b37998e522e -r 162c1de6545a web/lib/Zend/Validate/Callback.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/lib/Zend/Validate/Callback.php	Fri Mar 11 15:05:35 2011 +0100
@@ -0,0 +1,174 @@
+<?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_Validate
+ * @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: Callback.php 22668 2010-07-25 14:50:46Z thomas $
+ */
+
+/**
+ * @see Zend_Validate_Abstract
+ */
+require_once 'Zend/Validate/Abstract.php';
+
+/**
+ * @category   Zend
+ * @package    Zend_Validate
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Validate_Callback extends Zend_Validate_Abstract
+{
+    /**
+     * Invalid callback
+     */
+    const INVALID_CALLBACK = 'callbackInvalid';
+
+    /**
+     * Invalid value
+     */
+    const INVALID_VALUE = 'callbackValue';
+
+    /**
+     * Validation failure message template definitions
+     *
+     * @var array
+     */
+    protected $_messageTemplates = array(
+        self::INVALID_VALUE    => "'%value%' is not valid",
+        self::INVALID_CALLBACK => "An exception has been raised within the callback",
+    );
+
+    /**
+     * Callback in a call_user_func format
+     *
+     * @var string|array
+     */
+    protected $_callback = null;
+
+    /**
+     * Default options to set for the filter
+     *
+     * @var mixed
+     */
+    protected $_options = array();
+
+    /**
+     * Sets validator options
+     *
+     * @param  string|array $callback
+     * @param  mixed   $max
+     * @param  boolean $inclusive
+     * @return void
+     */
+    public function __construct($callback = null)
+    {
+        if (is_callable($callback)) {
+            $this->setCallback($callback);
+        } elseif (is_array($callback)) {
+            if (isset($callback['callback'])) {
+                $this->setCallback($callback['callback']);
+            }
+            if (isset($callback['options'])) {
+                $this->setOptions($callback['options']);
+            }
+        }
+
+        if (null === ($initializedCallack = $this->getCallback())) {
+            require_once 'Zend/Validate/Exception.php';
+            throw new Zend_Validate_Exception('No callback registered');
+        }
+    }
+
+    /**
+     * Returns the set callback
+     *
+     * @return mixed
+     */
+    public function getCallback()
+    {
+        return $this->_callback;
+    }
+
+    /**
+     * Sets the callback
+     *
+     * @param  string|array $callback
+     * @return Zend_Validate_Callback Provides a fluent interface
+     */
+    public function setCallback($callback)
+    {
+        if (!is_callable($callback)) {
+            require_once 'Zend/Validate/Exception.php';
+            throw new Zend_Validate_Exception('Invalid callback given');
+        }
+        $this->_callback = $callback;
+        return $this;
+    }
+
+    /**
+     * Returns the set options for the callback
+     *
+     * @return mixed
+     */
+    public function getOptions()
+    {
+        return $this->_options;
+    }
+
+    /**
+     * Sets options for the callback
+     *
+     * @param  mixed $max
+     * @return Zend_Validate_Callback Provides a fluent interface
+     */
+    public function setOptions($options)
+    {
+        $this->_options = (array) $options;
+        return $this;
+    }
+
+    /**
+     * Defined by Zend_Validate_Interface
+     *
+     * Returns true if and only if the set callback returns
+     * for the provided $value
+     *
+     * @param  mixed $value
+     * @return boolean
+     */
+    public function isValid($value)
+    {
+        $this->_setValue($value);
+
+        $options  = $this->getOptions();
+        $callback = $this->getCallback();
+        $args     = func_get_args();
+        $options  = array_merge($args, $options);
+
+        try {
+            if (!call_user_func_array($callback, $options)) {
+                $this->_error(self::INVALID_VALUE);
+                return false;
+            }
+        } catch (Exception $e) {
+            $this->_error(self::INVALID_CALLBACK);
+            return false;
+        }
+
+        return true;
+    }
+}