MediaWiki  master
TiffHandler.php
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1 <?php
26 
36  private const EXPENSIVE_SIZE_LIMIT = 10485760;
37 
49  public function canRender( $file ) {
50  $tiffThumbnailType = MediaWikiServices::getInstance()->getMainConfig()
51  ->get( MainConfigNames::TiffThumbnailType );
52 
53  return (bool)$tiffThumbnailType
54  || $file->getRepo() instanceof ForeignAPIRepo;
55  }
56 
64  public function mustRender( $file ) {
65  return true;
66  }
67 
74  public function getThumbType( $ext, $mime, $params = null ) {
75  $tiffThumbnailType = MediaWikiServices::getInstance()->getMainConfig()
76  ->get( MainConfigNames::TiffThumbnailType );
77 
78  return $tiffThumbnailType;
79  }
80 
81  public function getSizeAndMetadata( $state, $filename ) {
82  $showEXIF = MediaWikiServices::getInstance()->getMainConfig()->get( MainConfigNames::ShowEXIF );
83 
84  try {
85  $meta = BitmapMetadataHandler::Tiff( $filename );
86  if ( !is_array( $meta ) ) {
87  // This should never happen, but doesn't hurt to be paranoid.
88  throw new InvalidTiffException( 'Metadata array is not an array' );
89  }
90  $info = [
91  'width' => $meta['ImageWidth'] ?? 0,
92  'height' => $meta['ImageLength'] ?? 0,
93  ];
94  $info = $this->applyExifRotation( $info, $meta );
95  if ( $showEXIF ) {
96  $meta['MEDIAWIKI_EXIF_VERSION'] = Exif::version();
97  $info['metadata'] = $meta;
98  }
99  return $info;
100  } catch ( InvalidTiffException $e ) {
101  // BitmapMetadataHandler throws an exception in certain exceptional
102  // cases like if file does not exist.
103  wfDebug( __METHOD__ . ': ' . $e->getMessage() );
104 
105  return [ 'metadata' => [ '_error' => ExifBitmapHandler::BROKEN_FILE ] ];
106  }
107  }
108 
109  public function isExpensiveToThumbnail( $file ) {
110  return $file->getSize() > static::EXPENSIVE_SIZE_LIMIT;
111  }
112 }
wfDebug( $text, $dest='all', array $context=[])
Sends a line to the debug log if enabled or, optionally, to a comment in output.
static Tiff( $filename)
This doesn't do much yet, but eventually I plan to add XMP support for Tiff.
Stuff specific to JPEG and (built-in) TIFF handler.
applyExifRotation( $info, $metadata)
const BROKEN_FILE
Error extracting metadata.
static version()
#-
Definition: Exif.php:714
A foreign repository for a remote MediaWiki accessible through api.php requests.
A class containing constants representing the names of configuration variables.
Service locator for MediaWiki core services.
Handler for Tiff images.
Definition: TiffHandler.php:32
isExpensiveToThumbnail( $file)
True if creating thumbnails from the file is large or otherwise resource-intensive.
getThumbType( $ext, $mime, $params=null)
Definition: TiffHandler.php:74
canRender( $file)
Conversion to PNG for inline display can be disabled here...
Definition: TiffHandler.php:49
mustRender( $file)
Browsers don't support TIFF inline generally...
Definition: TiffHandler.php:64
getSizeAndMetadata( $state, $filename)
Get image size information and metadata array.
Definition: TiffHandler.php:81
$mime
Definition: router.php:60
if(PHP_SAPI !='cli-server') if(!isset( $_SERVER['SCRIPT_FILENAME'])) $file
Item class for a filearchive table row.
Definition: router.php:42
if(!is_readable( $file)) $ext
Definition: router.php:48