--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/Zend/Validate/File/IsImage.php	Mon Dec 13 18:29:26 2010 +0100
@@ -0,0 +1,173 @@
+<?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: IsImage.php 22668 2010-07-25 14:50:46Z thomas $
+ */
+
+/**
+ * @see Zend_Validate_File_MimeType
+ */
+require_once 'Zend/Validate/File/MimeType.php';
+
+/**
+ * Validator which checks if the file already exists in the directory
+ *
+ * @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_IsImage extends Zend_Validate_File_MimeType
+{
+    /**
+     * @const string Error constants
+     */
+    const FALSE_TYPE   = 'fileIsImageFalseType';
+    const NOT_DETECTED = 'fileIsImageNotDetected';
+    const NOT_READABLE = 'fileIsImageNotReadable';
+
+    /**
+     * @var array Error message templates
+     */
+    protected $_messageTemplates = array(
+        self::FALSE_TYPE   => "File '%value%' is no image, '%type%' detected",
+        self::NOT_DETECTED => "The mimetype of file '%value%' could not be detected",
+        self::NOT_READABLE => "File '%value%' is not readable or does not exist",
+    );
+
+    /**
+     * Sets validator options
+     *
+     * @param  string|array|Zend_Config $mimetype
+     * @return void
+     */
+    public function __construct($mimetype = array())
+    {
+        if ($mimetype instanceof Zend_Config) {
+            $mimetype = $mimetype->toArray();
+        }
+
+        $temp    = array();
+        // http://de.wikipedia.org/wiki/Liste_von_Dateiendungen
+        // http://www.iana.org/assignments/media-types/image/
+        $default = array(
+            'application/cdf',
+            'application/dicom',
+            'application/fractals',
+            'application/postscript',
+            'application/vnd.hp-hpgl',
+            'application/vnd.oasis.opendocument.graphics',
+            'application/x-cdf',
+            'application/x-cmu-raster',
+            'application/x-ima',
+            'application/x-inventor',
+            'application/x-koan',
+            'application/x-portable-anymap',
+            'application/x-world-x-3dmf',
+            'image/bmp',
+            'image/c',
+            'image/cgm',
+            'image/fif',
+            'image/gif',
+            'image/jpeg',
+            'image/jpm',
+            'image/jpx',
+            'image/jp2',
+            'image/naplps',
+            'image/pjpeg',
+            'image/png',
+            'image/svg',
+            'image/svg+xml',
+            'image/tiff',
+            'image/vnd.adobe.photoshop',
+            'image/vnd.djvu',
+            'image/vnd.fpx',
+            'image/vnd.net-fpx',
+            'image/x-cmu-raster',
+            'image/x-cmx',
+            'image/x-coreldraw',
+            'image/x-cpi',
+            'image/x-emf',
+            'image/x-ico',
+            'image/x-icon',
+            'image/x-jg',
+            'image/x-ms-bmp',
+            'image/x-niff',
+            'image/x-pict',
+            'image/x-pcx',
+            'image/x-portable-anymap',
+            'image/x-portable-bitmap',
+            'image/x-portable-greymap',
+            'image/x-portable-pixmap',
+            'image/x-quicktime',
+            'image/x-rgb',
+            'image/x-tiff',
+            'image/x-unknown',
+            'image/x-windows-bmp',
+            'image/x-xpmi',
+        );
+
+        if (is_array($mimetype)) {
+            $temp = $mimetype;
+            if (array_key_exists('magicfile', $temp)) {
+                unset($temp['magicfile']);
+            }
+
+            if (array_key_exists('headerCheck', $temp)) {
+                unset($temp['headerCheck']);
+            }
+
+            if (empty($temp)) {
+                $mimetype += $default;
+            }
+        }
+
+        if (empty($mimetype)) {
+            $mimetype = $default;
+        }
+
+        parent::__construct($mimetype);
+    }
+
+    /**
+     * Throws an error of the given type
+     * Duplicates parent method due to OOP Problem with late static binding in PHP 5.2
+     *
+     * @param  string $file
+     * @param  string $errorType
+     * @return false
+     */
+    protected function _throw($file, $errorType)
+    {
+        $this->_value = $file['name'];
+        switch($errorType) {
+            case Zend_Validate_File_MimeType::FALSE_TYPE :
+                $errorType = self::FALSE_TYPE;
+                break;
+            case Zend_Validate_File_MimeType::NOT_DETECTED :
+                $errorType = self::NOT_DETECTED;
+                break;
+            case Zend_Validate_File_MimeType::NOT_READABLE :
+                $errorType = self::NOT_READABLE;
+                break;
+        }
+
+        $this->_error($errorType);
+        return false;
+    }
+}