Services/BannerExtracter.php

   1 <?php
   2
   3 namespace Services;
   4
   5 use ZipArchive;
   6 use finfo;
   7 use Exception;
   8 use Services\IBannerExtracter;
   9 use Domain\Entities\IFileStepByStepBuilder;
  10
  11 //TODO: This class can probably be refactored to be nicer. Also perhaps the methods could be static?
  12 class BannerExtracter implements IBannerExtracter
  13 {
  14     private $_builder;
  15     private $_destinationFileName;
  16     private $_hash;
  17
  18     public function __construct(IFileStepByStepBuilder $builder) {
  19         $this->_builder = $builder;
  20     }
  21
  22     public function extractSongBanner($zipfile, $bannerName) {
  23         $za = new ZipArchive();
  24         //XXX: We assume all files are zips. Should be enforced by validation elsewhere.
  25         $res = $za->open($zipfile);
  26
  27         if($res !== true) throw new Exception ('Could not open zip for reading.');
  28
  29         for($i=0; $i<$za->numFiles; $i++)
  30         {
  31             $stat = $za->statIndex($i);
  32             if(basename($stat['name']) == $bannerName)
  33             {
  34                 $this->_hash = md5_file('zip://' . $zipfile . '#' . $stat['name']);
  35                 $this->_destinationFileName = $this->_hash . '.' . pathinfo($bannerName, PATHINFO_EXTENSION);
  36                 $result = copy('zip://' . $zipfile . '#' . $stat['name'], '../files/banners/' . $this->_destinationFileName);
  37                 break;
  38             }
  39         }
  40
  41         if(!isset($result) || !$result) return null;
  42
  43         $finfo = new finfo(FILEINFO_MIME);
  44         $mimetype = $finfo->file('../files/banners/' . $this->_destinationFileName);
  45         $size = filesize('../files/banners/' . $this->_destinationFileName);
  46         /* @var $fff \Domain\Entities\FileStepByStepBuilder */
  47         return $this->_builder->With_Hash($this->_hash)
  48                               ->With_Path('banners')
  49                               ->With_Filename($bannerName)
  50                               ->With_Mimetype($mimetype)
  51                               ->With_Size($size)
  52                               ->With_UploadDate(time())
  53                               ->build();
  54     }
  55
  56     public function extractPackBanner($zipfile, $packname)
  57     {
  58         $bannerName = '';
  59         $za = new ZipArchive();
  60         //XXX: We assume all files are zips. Should be enforced by validation elsewhere.
  61         $res = $za->open($zipfile);
  62
  63         if($res !== true) throw new Exception ('Could not open zip for reading.');
  64
  65         for($i=0; $i<$za->numFiles; $i++)
  66         {
  67             $stat = $za->statIndex($i);
  68             $type = @exif_imagetype('zip://' . realpath($zipfile) . '#' . $stat['name']);
  69
  70             if($type !== false)
  71             {
  72                 $pathComponents = explode('/',$stat['name']);
  73
  74                 //replace 3spooty with packname variable
  75                 if(count($pathComponents) == 2 && $pathComponents[0] == $packname)
  76                 {
  77                     $this->_hash = md5_file('zip://' . realpath($zipfile) . '#' . $stat['name']);
  78                     $this->_destinationFileName = $this->_hash . '.' . pathinfo($stat['name'], PATHINFO_EXTENSION);
  79                     $bannerName = $pathComponents[1];
  80                     $result = copy('zip://' . realpath($zipfile) . '#' . $stat['name'], '../files/banners/' . $this->_destinationFileName);
  81                     break;
  82                 }
  83             }
  84         }
  85
  86         if(!isset($result) || !$result) return null;
  87
  88         $finfo = new finfo(FILEINFO_MIME);
  89         $mimetype = $finfo->file('../files/banners/' . $this->_destinationFileName);
  90         $size = filesize('../files/banners/' . $this->_destinationFileName);
  91         /* @var $fff \Domain\Entities\FileStepByStepBuilder */
  92         return $this->_builder->With_Hash($this->_hash)
  93                               ->With_Path('banners')
  94                               ->With_Filename($bannerName)
  95                               ->With_Mimetype($mimetype)
  96                               ->With_Size($size)
  97                               ->With_UploadDate(time())
  98                               ->build();
  99     }
 100
 101     private function randomFilename($seed)
 102     {
 103         return sha1(mt_rand(1, 9999) . $seed . uniqid() . time());
 104     }
 105 }