interface/modules/zend_modules/library/Zend/Filter/File/Decrypt.php

   1 <?php
   2 /**
   3  * Zend Framework (http://framework.zend.com/)
   4  *
   5  * @link      http://github.com/zendframework/zf2 for the canonical source repository
   6  * @copyright Copyright (c) 2005-2013 Zend Technologies USA Inc. (http://www.zend.com)
   7  * @license   http://framework.zend.com/license/new-bsd New BSD License
   8  */
   9
  10 namespace Zend\Filter\File;
  11
  12 use Zend\Filter;
  13 use Zend\Filter\Exception;
  14
  15 /**
  16  * Decrypts a given file and stores the decrypted file content
  17  */
  18 class Decrypt extends Filter\Decrypt
  19 {
  20     /**
  21      * New filename to set
  22      *
  23      * @var string
  24      */
  25     protected $filename;
  26
  27     /**
  28      * Returns the new filename where the content will be stored
  29      *
  30      * @return string
  31      */
  32     public function getFilename()
  33     {
  34         return $this->filename;
  35     }
  36
  37     /**
  38      * Sets the new filename where the content will be stored
  39      *
  40      * @param  string $filename (Optional) New filename to set
  41      * @return self
  42      */
  43     public function setFilename($filename = null)
  44     {
  45         $this->filename = $filename;
  46         return $this;
  47     }
  48
  49     /**
  50      * Defined by Zend\Filter\FilterInterface
  51      *
  52      * Decrypts the file $value with the defined settings
  53      *
  54      * @param  string|array $value Full path of file to change or $_FILES data array
  55      * @return string|array The filename which has been set
  56      * @throws Exception\InvalidArgumentException
  57      * @throws Exception\RuntimeException
  58      */
  59     public function filter($value)
  60     {
  61         // An uploaded file? Retrieve the 'tmp_name'
  62         $isFileUpload = (is_array($value) && isset($value['tmp_name']));
  63         if ($isFileUpload) {
  64             $uploadData = $value;
  65             $value      = $value['tmp_name'];
  66         }
  67
  68         if (!file_exists($value)) {
  69             throw new Exception\InvalidArgumentException("File '$value' not found");
  70         }
  71
  72         if (!isset($this->filename)) {
  73             $this->filename = $value;
  74         }
  75
  76         if (file_exists($this->filename) and !is_writable($this->filename)) {
  77             throw new Exception\RuntimeException("File '{$this->filename}' is not writable");
  78         }
  79
  80         $content = file_get_contents($value);
  81         if (!$content) {
  82             throw new Exception\RuntimeException("Problem while reading file '$value'");
  83         }
  84
  85         $decrypted = parent::filter($content);
  86         $result    = file_put_contents($this->filename, $decrypted);
  87
  88         if (!$result) {
  89             throw new Exception\RuntimeException("Problem while writing file '{$this->filename}'");
  90         }
  91
  92         if ($isFileUpload) {
  93             $uploadData['tmp_name'] = $this->filename;
  94             return $uploadData;
  95         }
  96         return $this->filename;
  97     }
  98 }