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0001 <?php
0002 /**
0003  * Zend Framework
0004  *
0005  * LICENSE
0006  *
0007  * This source file is subject to the new BSD license that is bundled
0008  * with this package in the file LICENSE.txt.
0009  * It is also available through the world-wide-web at this URL:
0010  * http://framework.zend.com/license/new-bsd
0011  * If you did not receive a copy of the license and are unable to
0012  * obtain it through the world-wide-web, please send an email
0013  * to license@zend.com so we can send you a copy immediately.
0014  *
0015  * @category  Zend
0016  * @package   Zend_Validate
0017  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
0018  * @license   http://framework.zend.com/license/new-bsd     New BSD License
0019  * @version   $Id$
0020  */
0021 
0022 /**
0023  * @see Zend_Validate_Abstract
0024  */
0025 // require_once 'Zend/Validate/Abstract.php';
0026 
0027 /**
0028  * Validator for the maximum size of a file up to a max of 2GB
0029  *
0030  * @category  Zend
0031  * @package   Zend_Validate
0032  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
0033  * @license   http://framework.zend.com/license/new-bsd     New BSD License
0034  */
0035 class Zend_Validate_File_Upload extends Zend_Validate_Abstract
0036 {
0037     /**@#+
0038      * @const string Error constants
0039      */
0040     const INI_SIZE       = 'fileUploadErrorIniSize';
0041     const FORM_SIZE      = 'fileUploadErrorFormSize';
0042     const PARTIAL        = 'fileUploadErrorPartial';
0043     const NO_FILE        = 'fileUploadErrorNoFile';
0044     const NO_TMP_DIR     = 'fileUploadErrorNoTmpDir';
0045     const CANT_WRITE     = 'fileUploadErrorCantWrite';
0046     const EXTENSION      = 'fileUploadErrorExtension';
0047     const ATTACK         = 'fileUploadErrorAttack';
0048     const FILE_NOT_FOUND = 'fileUploadErrorFileNotFound';
0049     const UNKNOWN        = 'fileUploadErrorUnknown';
0050     /**@#-*/
0051 
0052     /**
0053      * @var array Error message templates
0054      */
0055     protected $_messageTemplates = array(
0056         self::INI_SIZE       => "File '%value%' exceeds the defined ini size",
0057         self::FORM_SIZE      => "File '%value%' exceeds the defined form size",
0058         self::PARTIAL        => "File '%value%' was only partially uploaded",
0059         self::NO_FILE        => "File '%value%' was not uploaded",
0060         self::NO_TMP_DIR     => "No temporary directory was found for file '%value%'",
0061         self::CANT_WRITE     => "File '%value%' can't be written",
0062         self::EXTENSION      => "A PHP extension returned an error while uploading the file '%value%'",
0063         self::ATTACK         => "File '%value%' was illegally uploaded. This could be a possible attack",
0064         self::FILE_NOT_FOUND => "File '%value%' was not found",
0065         self::UNKNOWN        => "Unknown error while uploading file '%value%'"
0066     );
0067 
0068     /**
0069      * Internal array of files
0070      * @var array
0071      */
0072     protected $_files = array();
0073 
0074     /**
0075      * Sets validator options
0076      *
0077      * The array $files must be given in syntax of Zend_File_Transfer to be checked
0078      * If no files are given the $_FILES array will be used automatically.
0079      * NOTE: This validator will only work with HTTP POST uploads!
0080      *
0081      * @param array|Zend_Config $files Array of files in syntax of Zend_File_Transfer
0082      */
0083     public function __construct($files = array())
0084     {
0085         if ($files instanceof Zend_Config) {
0086             $files = $files->toArray();
0087         }
0088 
0089         $this->setFiles($files);
0090     }
0091 
0092     /**
0093      * Returns the array of set files
0094      *
0095      * @param  string $file (Optional) The file to return in detail
0096      * @return array
0097      * @throws Zend_Validate_Exception If file is not found
0098      */
0099     public function getFiles($file = null)
0100     {
0101         if ($file !== null) {
0102             $return = array();
0103             foreach ($this->_files as $name => $content) {
0104                 if ($name === $file) {
0105                     $return[$file] = $this->_files[$name];
0106                 }
0107 
0108                 if ($content['name'] === $file) {
0109                     $return[$name] = $this->_files[$name];
0110                 }
0111             }
0112 
0113             if (count($return) === 0) {
0114                 // require_once 'Zend/Validate/Exception.php';
0115                 throw new Zend_Validate_Exception("The file '$file' was not found");
0116             }
0117 
0118             return $return;
0119         }
0120 
0121         return $this->_files;
0122     }
0123 
0124     /**
0125      * Sets the files to be checked
0126      *
0127      * @param  array $files The files to check in syntax of Zend_File_Transfer
0128      * @return Zend_Validate_File_Upload Provides a fluent interface
0129      */
0130     public function setFiles($files = array())
0131     {
0132         if (count($files) === 0) {
0133             $this->_files = $_FILES;
0134         } else {
0135             $this->_files = $files;
0136         }
0137 
0138         // see ZF-10738
0139         if (is_null($this->_files)) {
0140             $this->_files = array();
0141         }
0142 
0143         foreach($this->_files as $file => $content) {
0144             if (!isset($content['error'])) {
0145                 unset($this->_files[$file]);
0146             }
0147         }
0148 
0149         return $this;
0150     }
0151 
0152     /**
0153      * Defined by Zend_Validate_Interface
0154      *
0155      * Returns true if and only if the file was uploaded without errors
0156      *
0157      * @param  string $value Single file to check for upload errors, when giving null the $_FILES array
0158      *                       from initialization will be used
0159      * @param  string|null   $file
0160      * @return boolean
0161      */
0162     public function isValid($value, $file = null)
0163     {
0164         $this->_messages = null;
0165         if (array_key_exists($value, $this->_files)) {
0166             $files[$value] = $this->_files[$value];
0167         } else {
0168             foreach ($this->_files as $file => $content) {
0169                 if (isset($content['name']) && ($content['name'] === $value)) {
0170                     $files[$file] = $this->_files[$file];
0171                 }
0172 
0173                 if (isset($content['tmp_name']) && ($content['tmp_name'] === $value)) {
0174                     $files[$file] = $this->_files[$file];
0175                 }
0176             }
0177         }
0178 
0179         if (empty($files)) {
0180             return $this->_throw($file, self::FILE_NOT_FOUND);
0181         }
0182 
0183         foreach ($files as $file => $content) {
0184             $this->_value = $file;
0185             switch($content['error']) {
0186                 case 0:
0187                     if (!is_uploaded_file($content['tmp_name'])) {
0188                         $this->_throw($content, self::ATTACK);
0189                     }
0190                     break;
0191 
0192                 case 1:
0193                     $this->_throw($content, self::INI_SIZE);
0194                     break;
0195 
0196                 case 2:
0197                     $this->_throw($content, self::FORM_SIZE);
0198                     break;
0199 
0200                 case 3:
0201                     $this->_throw($content, self::PARTIAL);
0202                     break;
0203 
0204                 case 4:
0205                     $this->_throw($content, self::NO_FILE);
0206                     break;
0207 
0208                 case 6:
0209                     $this->_throw($content, self::NO_TMP_DIR);
0210                     break;
0211 
0212                 case 7:
0213                     $this->_throw($content, self::CANT_WRITE);
0214                     break;
0215 
0216                 case 8:
0217                     $this->_throw($content, self::EXTENSION);
0218                     break;
0219 
0220                 default:
0221                     $this->_throw($content, self::UNKNOWN);
0222                     break;
0223             }
0224         }
0225 
0226         if (count($this->_messages) > 0) {
0227             return false;
0228         } else {
0229             return true;
0230         }
0231     }
0232 
0233     /**
0234      * Throws an error of the given type
0235      *
0236      * @param  string $file
0237      * @param  string $errorType
0238      * @return false
0239      */
0240     protected function _throw($file, $errorType)
0241     {
0242         if ($file !== null) {
0243             if (is_array($file) and !empty($file['name'])) {
0244                 $this->_value = $file['name'];
0245             }
0246         }
0247 
0248         $this->_error($errorType);
0249         return false;
0250     }
0251 }