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<?php
/**
* Zend Framework (http://framework.zend.com/)
*
* @link http://github.com/zendframework/zf2 for the canonical source repository
* @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
namespace Zend\Validator\File;
use Zend\Validator\AbstractValidator;
use Zend\Validator\Exception;
/**
* Validator for the maximum size of a file up to a max of 2GB
*
*/
class Upload extends AbstractValidator
{
/**
* @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%'"
);
protected $options = array(
'files' => array(),
);
/**
* Sets validator options
*
* The array $files must be given in syntax of Zend\File\Transfer\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|\Traversable $options Array of files in syntax of \Zend\File\Transfer\Transfer
*/
public function __construct($options = array())
{
if (is_array($options) && !array_key_exists('files', $options)) {
$options = array('files' => $options);
}
parent::__construct($options);
}
/**
* Returns the array of set files
*
* @param string $file (Optional) The file to return in detail
* @return array
* @throws Exception\InvalidArgumentException If file is not found
*/
public function getFiles($file = null)
{
if ($file !== null) {
$return = array();
foreach ($this->options['files'] as $name => $content) {
if ($name === $file) {
$return[$file] = $this->options['files'][$name];
}
if ($content['name'] === $file) {
$return[$name] = $this->options['files'][$name];
}
}
if (count($return) === 0) {
throw new Exception\InvalidArgumentException("The file '$file' was not found");
}
return $return;
}
return $this->options['files'];
}
/**
* Sets the files to be checked
*
* @param array $files The files to check in syntax of \Zend\File\Transfer\Transfer
* @return Upload Provides a fluent interface
*/
public function setFiles($files = array())
{
if (count($files) === 0) {
$this->options['files'] = $_FILES;
} else {
$this->options['files'] = $files;
}
if ($this->options['files'] === null) {
$this->options['files'] = array();
}
foreach ($this->options['files'] as $file => $content) {
if (!isset($content['error'])) {
unset($this->options['files'][$file]);
}
}
return $this;
}
/**
* 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
* @param mixed $file
* @return bool
*/
public function isValid($value, $file = null)
{
$files = array();
$this->setValue($value);
if (array_key_exists($value, $this->getFiles())) {
$files = array_merge($files, $this->getFiles($value));
} else {
foreach ($this->getFiles() as $file => $content) {
if (isset($content['name']) && ($content['name'] === $value)) {
$files = array_merge($files, $this->getFiles($file));
}
if (isset($content['tmp_name']) && ($content['tmp_name'] === $value)) {
$files = array_merge($files, $this->getFiles($file));
}
}
}
if (empty($files)) {
return $this->throwError($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'])) {
$this->throwError($content, self::ATTACK);
}
break;
case 1:
$this->throwError($content, self::INI_SIZE);
break;
case 2:
$this->throwError($content, self::FORM_SIZE);
break;
case 3:
$this->throwError($content, self::PARTIAL);
break;
case 4:
$this->throwError($content, self::NO_FILE);
break;
case 6:
$this->throwError($content, self::NO_TMP_DIR);
break;
case 7:
$this->throwError($content, self::CANT_WRITE);
break;
case 8:
$this->throwError($content, self::EXTENSION);
break;
default:
$this->throwError($content, self::UNKNOWN);
break;
}
}
if (count($this->getMessages()) > 0) {
return false;
}
return true;
}
/**
* Throws an error of the given type
*
* @param string $file
* @param string $errorType
* @return false
*/
protected function throwError($file, $errorType)
{
if ($file !== null) {
if (is_array($file)) {
if (array_key_exists('name', $file)) {
$this->value = $file['name'];
}
} elseif (is_string($file)) {
$this->value = $file;
}
}
$this->error($errorType);
return false;
}
}
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