--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/Zend/Validate/File/Exists.php	Mon Dec 13 18:29:26 2010 +0100
@@ -0,0 +1,203 @@
+<?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: Exists.php 20352 2010-01-17 17:55:38Z thomas $
+ */
+
+/**
+ * @see Zend_Validate_Abstract
+ */
+require_once 'Zend/Validate/Abstract.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_Exists extends Zend_Validate_Abstract
+{
+    /**
+     * @const string Error constants
+     */
+    const DOES_NOT_EXIST = 'fileExistsDoesNotExist';
+
+    /**
+     * @var array Error message templates
+     */
+    protected $_messageTemplates = array(
+        self::DOES_NOT_EXIST => "File '%value%' does not exist",
+    );
+
+    /**
+     * Internal list of directories
+     * @var string
+     */
+    protected $_directory = '';
+
+    /**
+     * @var array Error message template variables
+     */
+    protected $_messageVariables = array(
+        'directory' => '_directory'
+    );
+
+    /**
+     * Sets validator options
+     *
+     * @param  string|array|Zend_Config $directory
+     * @return void
+     */
+    public function __construct($directory = array())
+    {
+        if ($directory instanceof Zend_Config) {
+            $directory = $directory->toArray();
+        } else if (is_string($directory)) {
+            $directory = explode(',', $directory);
+        } else if (!is_array($directory)) {
+            require_once 'Zend/Validate/Exception.php';
+            throw new Zend_Validate_Exception ('Invalid options to validator provided');
+        }
+
+        $this->setDirectory($directory);
+    }
+
+    /**
+     * Returns the set file directories which are checked
+     *
+     * @param  boolean $asArray Returns the values as array, when false an concated string is returned
+     * @return string
+     */
+    public function getDirectory($asArray = false)
+    {
+        $asArray   = (bool) $asArray;
+        $directory = (string) $this->_directory;
+        if ($asArray) {
+            $directory = explode(',', $directory);
+        }
+
+        return $directory;
+    }
+
+    /**
+     * Sets the file directory which will be checked
+     *
+     * @param  string|array $directory The directories to validate
+     * @return Zend_Validate_File_Extension Provides a fluent interface
+     */
+    public function setDirectory($directory)
+    {
+        $this->_directory = null;
+        $this->addDirectory($directory);
+        return $this;
+    }
+
+    /**
+     * Adds the file directory which will be checked
+     *
+     * @param  string|array $directory The directory to add for validation
+     * @return Zend_Validate_File_Extension Provides a fluent interface
+     */
+    public function addDirectory($directory)
+    {
+        $directories = $this->getDirectory(true);
+
+        if (is_string($directory)) {
+            $directory = explode(',', $directory);
+        } else if (!is_array($directory)) {
+            require_once 'Zend/Validate/Exception.php';
+            throw new Zend_Validate_Exception ('Invalid options to validator provided');
+        }
+
+        foreach ($directory as $content) {
+            if (empty($content) || !is_string($content)) {
+                continue;
+            }
+
+            $directories[] = trim($content);
+        }
+        $directories = array_unique($directories);
+
+        // Sanity check to ensure no empty values
+        foreach ($directories as $key => $dir) {
+            if (empty($dir)) {
+                unset($directories[$key]);
+            }
+        }
+
+        $this->_directory = implode(',', $directories);
+
+        return $this;
+    }
+
+    /**
+     * Defined by Zend_Validate_Interface
+     *
+     * Returns true if and only if the file already exists in the set directories
+     *
+     * @param  string  $value Real file to check for existance
+     * @param  array   $file  File data from Zend_File_Transfer
+     * @return boolean
+     */
+    public function isValid($value, $file = null)
+    {
+        $directories = $this->getDirectory(true);
+        if (($file !== null) and (!empty($file['destination']))) {
+            $directories[] = $file['destination'];
+        } else if (!isset($file['name'])) {
+            $file['name'] = $value;
+        }
+
+        $check = false;
+        foreach ($directories as $directory) {
+            if (empty($directory)) {
+                continue;
+            }
+
+            $check = true;
+            if (!file_exists($directory . DIRECTORY_SEPARATOR . $file['name'])) {
+                return $this->_throw($file, self::DOES_NOT_EXIST);
+            }
+        }
+
+        if (!$check) {
+            return $this->_throw($file, self::DOES_NOT_EXIST);
+        }
+
+        return true;
+    }
+
+    /**
+     * Throws an error of the given type
+     *
+     * @param  string $file
+     * @param  string $errorType
+     * @return false
+     */
+    protected function _throw($file, $errorType)
+    {
+        if ($file !== null) {
+            $this->_value = $file['name'];
+        }
+
+        $this->_error($errorType);
+        return false;
+    }
+}