MediaWiki master
TiffHandler.php
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1<?php
26
36 private const EXPENSIVE_SIZE_LIMIT = 10_485_760;
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()
The version of the output format.
Definition Exif.php:706
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.
isExpensiveToThumbnail( $file)
True if creating thumbnails from the file is large or otherwise resource-intensive.
getThumbType( $ext, $mime, $params=null)
canRender( $file)
Conversion to PNG for inline display can be disabled here... Note scaling should work with ImageMagic...
mustRender( $file)
Browsers don't support TIFF inline generally... For inline display, we need to convert to PNG.
getSizeAndMetadata( $state, $filename)
Get image size information and metadata array.