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<?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) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id$
*/
/**
* @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) 2005-2014 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;
}
}
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