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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 for the maximum size of a file up to a max of 2GB
*
* @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_Upload extends Zend_Validate_Abstract
{
/**@#+
* @const string Error constants
*/
const INI_SIZE = 'fileUploadErrorIniSize';
const FORM_SIZE = 'fileUploadErrorFormSize';
const PARTIAL = 'fileUploadErrorPartial';
const NO_FILE = 'fileUploadErrorNoFile';
const NO_TMP_DIR = 'fileUploadErrorNoTmpDir';
const CANT_WRITE = 'fileUploadErrorCantWrite';
const EXTENSION = 'fileUploadErrorExtension';
const ATTACK = 'fileUploadErrorAttack';
const FILE_NOT_FOUND = 'fileUploadErrorFileNotFound';
const UNKNOWN = 'fileUploadErrorUnknown';
/**@#-*/
/**
* @var array Error message templates
*/
protected $_messageTemplates = array(
self::INI_SIZE => "File '%value%' exceeds the defined ini size",
self::FORM_SIZE => "File '%value%' exceeds the defined form size",
self::PARTIAL => "File '%value%' was only partially uploaded",
self::NO_FILE => "File '%value%' was not uploaded",
self::NO_TMP_DIR => "No temporary directory was found for file '%value%'",
self::CANT_WRITE => "File '%value%' can't be written",
self::EXTENSION => "A PHP extension returned an error while uploading the file '%value%'",
self::ATTACK => "File '%value%' was illegally uploaded. This could be a possible attack",
self::FILE_NOT_FOUND => "File '%value%' was not found",
self::UNKNOWN => "Unknown error while uploading file '%value%'"
);
/**
* Internal array of files
* @var array
*/
protected $_files = array();
/**
* Sets validator options
*
* The array $files must be given in syntax of Zend_File_Transfer to be checked
* If no files are given the $_FILES array will be used automatically.
* NOTE: This validator will only work with HTTP POST uploads!
*
* @param array|Zend_Config $files Array of files in syntax of Zend_File_Transfer
* @return void
*/
public function __construct($files = array())
{
if ($files instanceof Zend_Config) {
$files = $files->toArray();
}
$this->setFiles($files);
}
/**
* Returns the array of set files
*
* @param string $files (Optional) The file to return in detail
* @return array
* @throws Zend_Validate_Exception If file is not found
*/
public function getFiles($file = null)
{
if ($file !== null) {
$return = array();
foreach ($this->_files as $name => $content) {
if ($name === $file) {
$return[$file] = $this->_files[$name];
}
if ($content['name'] === $file) {
$return[$name] = $this->_files[$name];
}
}
if (count($return) === 0) {
require_once 'Zend/Validate/Exception.php';
throw new Zend_Validate_Exception("The file '$file' was not found");
}
return $return;
}
return $this->_files;
}
/**
* Sets the files to be checked
*
* @param array $files The files to check in syntax of Zend_File_Transfer
* @return Zend_Validate_File_Upload Provides a fluent interface
*/
public function setFiles($files = array())
{
if (count($files) === 0) {
$this->_files = $_FILES;
} else {
$this->_files = $files;
}
// see ZF-10738
if (is_null($this->_files)) {
$this->_files = array();
}
foreach($this->_files as $file => $content) {
if (!isset($content['error'])) {
unset($this->_files[$file]);
}
}
return $this;
}
/**
* Defined by Zend_Validate_Interface
*
* Returns true if and only if the file was uploaded without errors
*
* @param string $value Single file to check for upload errors, when giving null the $_FILES array
* from initialization will be used
* @return boolean
*/
public function isValid($value, $file = null)
{
$this->_messages = null;
if (array_key_exists($value, $this->_files)) {
$files[$value] = $this->_files[$value];
} else {
foreach ($this->_files as $file => $content) {
if (isset($content['name']) && ($content['name'] === $value)) {
$files[$file] = $this->_files[$file];
}
if (isset($content['tmp_name']) && ($content['tmp_name'] === $value)) {
$files[$file] = $this->_files[$file];
}
}
}
if (empty($files)) {
return $this->_throw($file, self::FILE_NOT_FOUND);
}
foreach ($files as $file => $content) {
$this->_value = $file;
switch($content['error']) {
case 0:
if (!is_uploaded_file($content['tmp_name'])) {
$this->_throw($content, self::ATTACK);
}
break;
case 1:
$this->_throw($content, self::INI_SIZE);
break;
case 2:
$this->_throw($content, self::FORM_SIZE);
break;
case 3:
$this->_throw($content, self::PARTIAL);
break;
case 4:
$this->_throw($content, self::NO_FILE);
break;
case 6:
$this->_throw($content, self::NO_TMP_DIR);
break;
case 7:
$this->_throw($content, self::CANT_WRITE);
break;
case 8:
$this->_throw($content, self::EXTENSION);
break;
default:
$this->_throw($content, self::UNKNOWN);
break;
}
}
if (count($this->_messages) > 0) {
return false;
} else {
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) {
if (is_array($file) and !empty($file['name'])) {
$this->_value = $file['name'];
}
}
$this->_error($errorType);
return false;
}
}
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