--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/Zend/Validate/File/Extension.php	Mon Dec 13 18:29:26 2010 +0100
@@ -0,0 +1,232 @@
+<?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: Extension.php 22668 2010-07-25 14:50:46Z thomas $
+ */
+
+/**
+ * @see Zend_Validate_Abstract
+ */
+require_once 'Zend/Validate/Abstract.php';
+
+/**
+ * Validator for the file extension of a file
+ *
+ * @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_File_Extension extends Zend_Validate_Abstract
+{
+    /**
+     * @const string Error constants
+     */
+    const FALSE_EXTENSION = 'fileExtensionFalse';
+    const NOT_FOUND       = 'fileExtensionNotFound';
+
+    /**
+     * @var array Error message templates
+     */
+    protected $_messageTemplates = array(
+        self::FALSE_EXTENSION => "File '%value%' has a false extension",
+        self::NOT_FOUND       => "File '%value%' is not readable or does not exist",
+    );
+
+    /**
+     * Internal list of extensions
+     * @var string
+     */
+    protected $_extension = '';
+
+    /**
+     * Validate case sensitive
+     *
+     * @var boolean
+     */
+    protected $_case = false;
+
+    /**
+     * @var array Error message template variables
+     */
+    protected $_messageVariables = array(
+        'extension' => '_extension'
+    );
+
+    /**
+     * Sets validator options
+     *
+     * @param  string|array|Zend_Config $options
+     * @return void
+     */
+    public function __construct($options)
+    {
+        if ($options instanceof Zend_Config) {
+            $options = $options->toArray();
+        }
+
+        if (1 < func_num_args()) {
+            $case = func_get_arg(1);
+            $this->setCase($case);
+        }
+
+        if (is_array($options) and isset($options['case'])) {
+            $this->setCase($options['case']);
+            unset($options['case']);
+        }
+
+        $this->setExtension($options);
+    }
+
+    /**
+     * Returns the case option
+     *
+     * @return boolean
+     */
+    public function getCase()
+    {
+        return $this->_case;
+    }
+
+    /**
+     * Sets the case to use
+     *
+     * @param  boolean $case
+     * @return Zend_Validate_File_Extension Provides a fluent interface
+     */
+    public function setCase($case)
+    {
+        $this->_case = (boolean) $case;
+        return $this;
+    }
+
+    /**
+     * Returns the set file extension
+     *
+     * @return array
+     */
+    public function getExtension()
+    {
+        $extension = explode(',', $this->_extension);
+
+        return $extension;
+    }
+
+    /**
+     * Sets the file extensions
+     *
+     * @param  string|array $extension The extensions to validate
+     * @return Zend_Validate_File_Extension Provides a fluent interface
+     */
+    public function setExtension($extension)
+    {
+        $this->_extension = null;
+        $this->addExtension($extension);
+        return $this;
+    }
+
+    /**
+     * Adds the file extensions
+     *
+     * @param  string|array $extension The extensions to add for validation
+     * @return Zend_Validate_File_Extension Provides a fluent interface
+     */
+    public function addExtension($extension)
+    {
+        $extensions = $this->getExtension();
+        if (is_string($extension)) {
+            $extension = explode(',', $extension);
+        }
+
+        foreach ($extension as $content) {
+            if (empty($content) || !is_string($content)) {
+                continue;
+            }
+
+            $extensions[] = trim($content);
+        }
+        $extensions = array_unique($extensions);
+
+        // Sanity check to ensure no empty values
+        foreach ($extensions as $key => $ext) {
+            if (empty($ext)) {
+                unset($extensions[$key]);
+            }
+        }
+
+        $this->_extension = implode(',', $extensions);
+
+        return $this;
+    }
+
+    /**
+     * Defined by Zend_Validate_Interface
+     *
+     * Returns true if and only if the fileextension of $value is included in the
+     * set extension list
+     *
+     * @param  string  $value Real file to check for extension
+     * @param  array   $file  File data from Zend_File_Transfer
+     * @return boolean
+     */
+    public function isValid($value, $file = null)
+    {
+        // Is file readable ?
+        require_once 'Zend/Loader.php';
+        if (!Zend_Loader::isReadable($value)) {
+            return $this->_throw($file, self::NOT_FOUND);
+        }
+
+        if ($file !== null) {
+            $info['extension'] = substr($file['name'], strrpos($file['name'], '.') + 1);
+        } else {
+            $info = pathinfo($value);
+        }
+
+        $extensions = $this->getExtension();
+
+        if ($this->_case && (in_array($info['extension'], $extensions))) {
+            return true;
+        } else if (!$this->getCase()) {
+            foreach ($extensions as $extension) {
+                if (strtolower($extension) == strtolower($info['extension'])) {
+                    return true;
+                }
+            }
+        }
+
+        return $this->_throw($file, self::FALSE_EXTENSION);
+    }
+
+    /**
+     * Throws an error of the given type
+     *
+     * @param  string $file
+     * @param  string $errorType
+     * @return false
+     */
+    protected function _throw($file, $errorType)
+    {
+        if (null !== $file) {
+            $this->_value = $file['name'];
+        }
+
+        $this->_error($errorType);
+        return false;
+    }
+}