includes/filerepo/ForeignAPIFile.php

   1 <?php
   2
   3 /**
   4  * Very hacky and inefficient
   5  * do not use :D
   6  *
   7  * @ingroup FileRepo
   8  */
   9 class ForeignAPIFile extends File {
  10         function __construct( $title, $repo, $info ) {
  11                 parent::__construct( $title, $repo );
  12                 $this->mInfo = $info;
  13         }
  14
  15         static function newFromTitle( $title, $repo ) {
  16                 $info = $repo->getImageInfo( $title );
  17                 if( $info ) {
  18                         return new ForeignAPIFile( $title, $repo, $info );
  19                 } else {
  20                         return null;
  21                 }
  22         }
  23
  24         // Dummy functions...
  25         public function exists() {
  26                 return true;
  27         }
  28
  29         public function getPath() {
  30                 return false;
  31         }
  32
  33         function transform( $params, $flags = 0 ) {
  34                 $thumbUrl = $this->repo->getThumbUrlFromCache(
  35                                 $this->getName(),
  36                                 isset( $params['width'] ) ? $params['width'] : -1,
  37                                 isset( $params['height'] ) ? $params['height'] : -1 );
  38                 if( $thumbUrl ) {
  39                         return $this->handler->getTransform( $this, 'bogus', $thumbUrl, $params );;
  40                 }
  41                 return false;
  42         }
  43
  44         // Info we can get from API...
  45         public function getWidth( $page = 1 ) {
  46                 return intval( @$this->mInfo['width'] );
  47         }
  48
  49         public function getHeight( $page = 1 ) {
  50                 return intval( @$this->mInfo['height'] );
  51         }
  52
  53         public function getMetadata() {
  54                 return serialize( (array)@$this->mInfo['metadata'] );
  55         }
  56
  57         public function getSize() {
  58                 return intval( @$this->mInfo['size'] );
  59         }
  60
  61         public function getUrl() {
  62                 return strval( @$this->mInfo['url'] );
  63         }
  64
  65         public function getUser( $method='text' ) {
  66                 return strval( @$this->mInfo['user'] );
  67         }
  68
  69         public function getDescription() {
  70                 return strval( @$this->mInfo['comment'] );
  71         }
  72
  73         function getSha1() {
  74                 return wfBaseConvert( strval( @$this->mInfo['sha1'] ), 16, 36, 31 );
  75         }
  76
  77         function getTimestamp() {
  78                 return wfTimestamp( TS_MW, strval( @$this->mInfo['timestamp'] ) );
  79         }
  80
  81         function getMimeType() {
  82                 if( empty( $info['mime'] ) ) {
  83                         $magic = MimeMagic::singleton();
  84                         $info['mime'] = $magic->guessTypesForExtension( $this->getExtension() );
  85                 }
  86                 return $info['mime'];
  87         }
  88
  89         /// @fixme May guess wrong on file types that can be eg audio or video
  90         function getMediaType() {
  91                 $magic = MimeMagic::singleton();
  92                 return $magic->getMediaType( null, $this->getMimeType() );
  93         }
  94
  95         function getDescriptionUrl() {
  96                 return isset( $this->mInfo['descriptionurl'] )
  97                         ? $this->mInfo['descriptionurl']
  98                         : false;
  99         }
 100
 101         /**
 102          * Only useful if we're locally caching thumbs anyway...
 103          */
 104         function getThumbPath( $suffix = '' ) {
 105                 $ret = null;
 106                 if ( $this->repo->canCacheThumbs() ) {
 107                         global $wgUploadDirectory;
 108                         $path = $wgUploadDirectory . '/' . $this->repo->apiThumbCacheDir . '/' . $this->repo->name . '/';
 109                         if ( $suffix ) {
 110                                 $path = $path . $suffix . '/';
 111                         }
 112                         return $path;
 113                 }
 114                 else {
 115                         return null;
 116                 }
 117         }
 118
 119         function getThumbnails() {
 120                 $files = array();
 121                 $dir = $this->getThumbPath( $this->getName() );
 122                 if ( is_dir( $dir ) ) {
 123                         $handle = opendir( $dir );
 124                         if ( $handle ) {
 125                                 while ( false !== ( $file = readdir($handle) ) ) {
 126                                         if ( $file{0} != '.'  ) {
 127                                                 $files[] = $file;
 128                                         }
 129                                 }
 130                                 closedir( $handle );
 131                         }
 132                 }
 133                 return $files;
 134         }
 135
 136         function purgeCache() {
 137                 $this->purgeThumbnails();
 138                 $this->purgeDescriptionPage();
 139         }
 140
 141         function purgeDescriptionPage() {
 142                 global $wgMemc;
 143                 $url = $this->repo->getDescriptionRenderUrl( $this->getName() );
 144                 $key = wfMemcKey( 'RemoteFileDescription', 'url', md5($url) );
 145                 $wgMemc->delete( $key );
 146         }
 147
 148         function purgeThumbnails() {
 149                 global $wgMemc;
 150                 $key = wfMemcKey( 'ForeignAPIRepo', 'ThumbUrl', $this->getName() );
 151                 $wgMemc->delete( $key );
 152                 $files = $this->getThumbnails();
 153                 $dir = $this->getThumbPath( $this->getName() );
 154                 foreach ( $files as $file ) {
 155                         unlink( $dir . $file );
 156                 }
 157                 if ( is_dir( $dir ) ) {
 158                         rmdir( $dir ); // Might have already gone away, spews errors if we don't.
 159                 }
 160         }
 161 }