PHP script to stream out an image thumbnail. More...

Functions
	wfExtractThumbParams ($file, $params)
	Convert a thumbnail name (122px-foo.png) to parameters, using file handler. More...

	wfExtractThumbRequestInfo ($thumbRel)
	Convert pathinfo type parameter, into normal request parameters. More...

	wfGenerateThumbnail (File $file, array $params, $thumbName, $thumbPath)
	Actually try to generate a new thumbnail. More...

	wfStreamThumb (array $params)
	Stream a thumbnail specified by parameters. More...

	wfThumbError ($status, $msgHtml, $msgText=null, $context=[])
	Output a thumbnail generation error message. More...

	wfThumbErrorText ($status, $msgText)
	Output a thumbnail generation error message. More...

	wfThumbHandle404 ()
	Handle a thumbnail request via thumbnail file URL. More...

Variables
	$mediawiki = new MediaWiki()

	$wgTrivialMimeDetection = true

if(defined( 'THUMB_HANDLER'))	else

const	MW_NO_OUTPUT_COMPRESSION 1

Detailed Description

PHP script to stream out an image thumbnail.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. http://www.gnu.org/copyleft/gpl.html

Definition in file thumb.php.

Function Documentation

wfExtractThumbParams	(	$file,
		$params
	)

Convert a thumbnail name (122px-foo.png) to parameters, using file handler.

Parameters

File	$file	File object for file in question
array	$params	Array of parameters so far

Returns: array Parameters array with more parameters

Definition at line 520 of file thumb.php.

References $handler, $matches, $params, list, Hooks\run(), and wfDeprecated().

Referenced by wfStreamThumb().

wfExtractThumbRequestInfo ( $thumbRel )

Convert pathinfo type parameter, into normal request parameters.

So for example, if the request was redirected from /w/images/thumb/a/ab/Foo.png/120px-Foo.png. The $thumbRel parameter of this function would be set to "a/ab/Foo.png/120px-Foo.png". This method is responsible for turning that into an array with the folowing keys:

f => the filename (Foo.png)
rel404 => the whole thing (a/ab/Foo.png/120px-Foo.png)
archived => 1 (If the request is for an archived thumb)
temp => 1 (If the file is in the "temporary" zone)
thumbName => the thumbnail name, including parameters (120px-Foo.png)

Transform specific parameters are set later via wfExtractThumbParams().

Parameters

string $thumbRel Thumbnail path relative to the thumb zone

Returns: array|null Associative params array or null

Definition at line 481 of file thumb.php.

References $params, list, and RepoGroup\singleton().

Referenced by wfThumbHandle404().

wfGenerateThumbnail	(	File	$file,
		array	$params,
			$thumbName,
			$thumbPath
	)

Actually try to generate a new thumbnail.

Parameters

File	$file
array	$params
string	$thumbName
string	$thumbPath

Returns: array (MediaTransformOutput|bool, string|bool error message HTML)

Definition at line 384 of file thumb.php.

References $cache, $e, $key, $status, $wgAttemptFailureEpoch, PoolCounterWork\execute(), ObjectCache\getLocalClusterInstance(), File\getName(), File\getRepo(), File\getSha1(), global, File\isExpensiveToThumbnail(), File\RENDER_NOW, File\transform(), use, and wfMessage().

Referenced by wfStreamThumb().

wfStreamThumb ( array $params )

Stream a thumbnail specified by parameters.

Parameters

array $params List of thumbnailing parameters. In addition to parameters passed to the MediaHandler, this may also includes the keys: f (for filename), archived (if archived file), temp (if temp file), w (alias for width), p (alias for page), r (ignored; historical), rel404 (path for render on 404 to verify hash path correct), thumbName (thumbnail name to potentially extract more parameters from e.g. 'lossy-page1-120px-Foo.tiff' would add page, lossy and width to the parameters)

Returns: void

Definition at line 91 of file thumb.php.

References $e, $response, $starttime, $status, $title, $user, $wgVaryOnXFP, are, based, File\DELETED_FILE, false, files(), User\getGroupPermissions(), MWException\getHTML(), MessageSpecifier\getKey(), RequestContext\getMain(), global, HttpStatus\header(), list, Title\makeTitleSafe(), name, NS_FILE, on, PROTO_CURRENT, RepoGroup\singleton(), the, File\THUMB_FULL_NAME, TS_UNIX, wfExpandUrl(), wfExtractThumbParams(), wfGenerateThumbnail(), wfLocalFile(), wfMessage(), wfThumbError(), wfThumbErrorText(), wfThumbIsStandard(), wfTimestamp(), and will.

Referenced by wfThumbHandle404().

wfThumbError	(	$status,
		$msgHtml,
		$msgText = `null`,
		$context = `[]`
	)

Output a thumbnail generation error message.

Parameters

int	$status
string	$msgHtml	HTML
string	$msgText	Short error description, for internal logging. Defaults to $msgHtml. Only used for HTTP 500 errors.
array	$context	Error context, for internal logging. Only used for HTTP 500 errors.