/** @var string Required Repository class type */
protected $repoClass = 'FileRepo';
+ /** @var array Cache of tmp filepaths pointing to generated bucket thumbnails, keyed by width */
+ protected $tmpBucketedThumbCache = array();
+
/**
* Call this constructor from child classes.
*
return false;
}
+ /**
+ * Return the smallest bucket from $wgThumbnailBuckets which is at least
+ * $wgThumbnailMinimumBucketDistance larger than $desiredWidth. The returned bucket, if any,
+ * will always be bigger than $desiredWidth.
+ *
+ * @param int $desiredWidth
+ * @param int $page
+ * @return bool|int
+ */
+ public function getThumbnailBucket( $desiredWidth, $page = 1 ) {
+ global $wgThumbnailBuckets, $wgThumbnailMinimumBucketDistance;
+
+ $imageWidth = $this->getWidth( $page );
+
+ if ( $imageWidth === false ) {
+ return false;
+ }
+
+ if ( $desiredWidth > $imageWidth ) {
+ return false;
+ }
+
+ if ( !$wgThumbnailBuckets ) {
+ return false;
+ }
+
+ $sortedBuckets = $wgThumbnailBuckets;
+
+ sort( $sortedBuckets );
+
+ foreach ( $sortedBuckets as $bucket ) {
+ if ( $bucket > $imageWidth ) {
+ return false;
+ }
+
+ if ( $bucket - $wgThumbnailMinimumBucketDistance > $desiredWidth ) {
+ return $bucket;
+ }
+ }
+
+ // Image is bigger than any available bucket
+ return false;
+ }
+
/**
* Returns ID or name of user who uploaded the file
* STUB
return null;
}
$extension = $this->getExtension();
- list( $thumbExt, ) = $this->handler->getThumbType(
+ list( $thumbExt, ) = $this->getHandler()->getThumbType(
$extension, $this->getMimeType(), $params );
- $thumbName = $this->handler->makeParamString( $params ) . '-' . $name;
+ $thumbName = $this->getHandler()->makeParamString( $params ) . '-' . $name;
if ( $thumbExt != $extension ) {
$thumbName .= ".$thumbExt";
}
* @return MediaTransformOutput|bool False on failure
*/
function transform( $params, $flags = 0 ) {
- global $wgUseSquid, $wgIgnoreImageErrors, $wgThumbnailEpoch;
+ global $wgThumbnailEpoch;
wfProfileIn( __METHOD__ );
do {
} elseif ( $flags & self::RENDER_FORCE ) {
wfDebug( __METHOD__ . " forcing rendering per flag File::RENDER_FORCE\n" );
}
- }
- // If the backend is ready-only, don't keep generating thumbnails
- // only to return transformation errors, just return the error now.
- if ( $this->repo->getReadOnlyReason() !== false ) {
- $thumb = $this->transformErrorOutput( $thumbPath, $thumbUrl, $params, $flags );
- break;
+ // If the backend is ready-only, don't keep generating thumbnails
+ // only to return transformation errors, just return the error now.
+ if ( $this->repo->getReadOnlyReason() !== false ) {
+ $thumb = $this->transformErrorOutput( $thumbPath, $thumbUrl, $params, $flags );
+ break;
+ }
}
- // Create a temp FS file with the same extension and the thumbnail
- $thumbExt = FileBackend::extensionFromPath( $thumbPath );
- $tmpFile = TempFSFile::factory( 'transform_', $thumbExt );
+ $tmpFile = $this->makeTransformTmpFile( $thumbPath );
+
if ( !$tmpFile ) {
$thumb = $this->transformErrorOutput( $thumbPath, $thumbUrl, $params, $flags );
- break;
+ } else {
+ $thumb = $this->generateAndSaveThumb( $tmpFile, $params, $flags );
}
- $tmpThumbPath = $tmpFile->getPath(); // path of 0-byte temp file
-
- // Actually render the thumbnail...
- wfProfileIn( __METHOD__ . '-doTransform' );
- $thumb = $handler->doTransform( $this, $tmpThumbPath, $thumbUrl, $params );
- wfProfileOut( __METHOD__ . '-doTransform' );
- $tmpFile->bind( $thumb ); // keep alive with $thumb
-
- if ( !$thumb ) { // bad params?
- $thumb = false;
- } elseif ( $thumb->isError() ) { // transform error
- $this->lastError = $thumb->toText();
- // Ignore errors if requested
- if ( $wgIgnoreImageErrors && !( $flags & self::RENDER_NOW ) ) {
- $thumb = $handler->getTransform( $this, $tmpThumbPath, $thumbUrl, $params );
- }
- } elseif ( $this->repo && $thumb->hasFile() && !$thumb->fileIsSource() ) {
- // Copy the thumbnail from the file system into storage...
- $disposition = $this->getThumbDisposition( $thumbName );
- $status = $this->repo->quickImport( $tmpThumbPath, $thumbPath, $disposition );
- if ( $status->isOK() ) {
- $thumb->setStoragePath( $thumbPath );
- } else {
- $thumb = $this->transformErrorOutput( $thumbPath, $thumbUrl, $params, $flags );
+ } while ( false );
+
+ wfProfileOut( __METHOD__ );
+
+ return is_object( $thumb ) ? $thumb : false;
+ }
+
+ /**
+ * Generates a thumbnail according to the given parameters and saves it to storage
+ * @param TempFSFile $tmpFile Temporary file where the rendered thumbnail will be saved
+ * @param array $transformParams
+ * @param int $flags
+ * @return bool|MediaTransformOutput
+ */
+ public function generateAndSaveThumb( $tmpFile, $transformParams, $flags ) {
+ global $wgUseSquid, $wgIgnoreImageErrors;
+
+ $handler = $this->getHandler();
+
+ $normalisedParams = $transformParams;
+ $handler->normaliseParams( $this, $normalisedParams );
+
+ $thumbName = $this->thumbName( $normalisedParams );
+ $thumbUrl = $this->getThumbUrl( $thumbName );
+ $thumbPath = $this->getThumbPath( $thumbName ); // final thumb path
+
+ $tmpThumbPath = $tmpFile->getPath();
+
+ if ( $handler->supportsBucketing() ) {
+ $this->generateBucketsIfNeeded( $normalisedParams, $flags );
+ }
+
+ // Actually render the thumbnail...
+ wfProfileIn( __METHOD__ . '-doTransform' );
+ $thumb = $handler->doTransform( $this, $tmpThumbPath, $thumbUrl, $transformParams );
+ wfProfileOut( __METHOD__ . '-doTransform' );
+ $tmpFile->bind( $thumb ); // keep alive with $thumb
+
+ if ( !$thumb ) { // bad params?
+ $thumb = false;
+ } elseif ( $thumb->isError() ) { // transform error
+ $this->lastError = $thumb->toText();
+ // Ignore errors if requested
+ if ( $wgIgnoreImageErrors && !( $flags & self::RENDER_NOW ) ) {
+ $thumb = $handler->getTransform( $this, $tmpThumbPath, $thumbUrl, $transformParams );
+ }
+ } elseif ( $this->repo && $thumb->hasFile() && !$thumb->fileIsSource() ) {
+ // Copy the thumbnail from the file system into storage...
+ $disposition = $this->getThumbDisposition( $thumbName );
+ $status = $this->repo->quickImport( $tmpThumbPath, $thumbPath, $disposition );
+ if ( $status->isOK() ) {
+ $thumb->setStoragePath( $thumbPath );
+ } else {
+ $thumb = $this->transformErrorOutput( $thumbPath, $thumbUrl, $transformParams, $flags );
+ }
+ // Give extensions a chance to do something with this thumbnail...
+ wfRunHooks( 'FileTransformed', array( $this, $thumb, $tmpThumbPath, $thumbPath ) );
+ }
+
+ // Purge. Useful in the event of Core -> Squid connection failure or squid
+ // purge collisions from elsewhere during failure. Don't keep triggering for
+ // "thumbs" which have the main image URL though (bug 13776)
+ if ( $wgUseSquid ) {
+ if ( !$thumb || $thumb->isError() || $thumb->getUrl() != $this->getURL() ) {
+ SquidUpdate::purge( array( $thumbUrl ) );
+ }
+ }
+
+ return $thumb;
+ }
+
+ /**
+ * Generates chained bucketed thumbnails if needed
+ * @param array $params
+ * @param int $flags
+ * @return bool Whether at least one bucket was generated
+ */
+ protected function generateBucketsIfNeeded( $params, $flags = 0 ) {
+ if ( !$this->repo
+ || !isset( $params['physicalWidth'] )
+ || !isset( $params['physicalHeight'] )
+ || !( $bucket = $this->getThumbnailBucket( $params['physicalWidth'] ) )
+ || $bucket == $params['physicalWidth'] ) {
+ return false;
+ }
+
+ $bucketPath = $this->getBucketThumbPath( $bucket );
+
+ if ( $this->repo->fileExists( $bucketPath ) ) {
+ return false;
+ }
+
+ $params['physicalWidth'] = $bucket;
+ $params['width'] = $bucket;
+
+ $params = $this->getHandler()->sanitizeParamsForBucketing( $params );
+
+ $bucketName = $this->getBucketThumbName( $bucket );
+
+ $tmpFile = $this->makeTransformTmpFile( $bucketPath );
+
+ if ( !$tmpFile ) {
+ return false;
+ }
+
+ $thumb = $this->generateAndSaveThumb( $tmpFile, $params, $flags );
+
+ if ( !$thumb || $thumb->isError() ) {
+ return false;
+ }
+
+ $this->tmpBucketedThumbCache[ $bucket ] = $tmpFile->getPath();
+ // For the caching to work, we need to make the tmp file survive as long as
+ // this object exists
+ $tmpFile->bind( $this );
+
+ return true;
+ }
+
+ /**
+ * Returns the most appropriate source image for the thumbnail, given a target thumbnail size
+ * @param array $params
+ * @return array source path and width/height of the source
+ */
+ public function getThumbnailSource( $params ) {
+ if ( $this->repo
+ && $this->getHandler()->supportsBucketing()
+ && isset( $params['physicalWidth'] )
+ && $bucket = $this->getThumbnailBucket( $params['physicalWidth'] )
+ ) {
+ if ( $this->getWidth() != 0 ) {
+ $bucketHeight = round( $this->getHeight() * ( $bucket / $this->getWidth() ) );
+ } else {
+ $bucketHeight = 0;
+ }
+
+ // Try to avoid reading from storage if the file was generated by this script
+ if ( isset( $this->tmpBucketedThumbCache[ $bucket ] ) ) {
+ $tmpPath = $this->tmpBucketedThumbCache[ $bucket ];
+
+ if ( file_exists( $tmpPath ) ) {
+ return array(
+ 'path' => $tmpPath,
+ 'width' => $bucket,
+ 'height' => $bucketHeight
+ );
}
- // Give extensions a chance to do something with this thumbnail...
- wfRunHooks( 'FileTransformed', array( $this, $thumb, $tmpThumbPath, $thumbPath ) );
}
- // Purge. Useful in the event of Core -> Squid connection failure or squid
- // purge collisions from elsewhere during failure. Don't keep triggering for
- // "thumbs" which have the main image URL though (bug 13776)
- if ( $wgUseSquid ) {
- if ( !$thumb || $thumb->isError() || $thumb->getUrl() != $this->getURL() ) {
- SquidUpdate::purge( array( $thumbUrl ) );
+ $bucketPath = $this->getBucketThumbPath( $bucket );
+
+ if ( $this->repo->fileExists( $bucketPath ) ) {
+ $fsFile = $this->repo->getLocalReference( $bucketPath );
+
+ if ( $fsFile ) {
+ return array(
+ 'path' => $fsFile->getPath(),
+ 'width' => $bucket,
+ 'height' => $bucketHeight
+ );
}
}
- } while ( false );
+ }
- wfProfileOut( __METHOD__ );
+ // Original file
+ return array(
+ 'path' => $this->getLocalRefPath(),
+ 'width' => $this->getWidth(),
+ 'height' => $this->getHeight()
+ );
+ }
- return is_object( $thumb ) ? $thumb : false;
+ /**
+ * Returns the repo path of the thumb for a given bucket
+ * @param int $bucket
+ * @return string
+ */
+ protected function getBucketThumbPath( $bucket ) {
+ $thumbName = $this->getBucketThumbName( $bucket );
+ return $this->getThumbPath( $thumbName );
+ }
+
+ /**
+ * Returns the name of the thumb for a given bucket
+ * @param int $bucket
+ * @return string
+ */
+ protected function getBucketThumbName( $bucket ) {
+ return $this->thumbName( array( 'physicalWidth' => $bucket ) );
+ }
+
+ /**
+ * Creates a temp FS file with the same extension and the thumbnail
+ * @param string $thumbPath Thumbnail path
+ * @returns TempFSFile
+ */
+ protected function makeTransformTmpFile( $thumbPath ) {
+ $thumbExt = FileBackend::extensionFromPath( $thumbPath );
+ return TempFSFile::factory( 'transform_', $thumbExt );
}
/**
return false;
}
- return $this->handler->getImageSize( $this, $filePath );
+ return $this->getHandler()->getImageSize( $this, $filePath );
}
/**
dépôts / lhc / web / wiklou.git / blobdiff