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ThumbnailEntryPoint.php
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ThumbnailEntryPoint.php
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<?php
/**
* Entry point implementation for retrieving media thumbnails, created by a MediaHandler
* subclass or proxy request if FileRepo::getThumbProxyUrl is configured.
*
* This also supports resizing an image on-demand, if it isn't found in the
* configured FileBackend storage.
*
* @see /thumb.php The web entry point.
*
* 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
*
* @file
* @ingroup entrypoint
* @ingroup Media
*/
namespace MediaWiki\FileRepo;
use Exception;
use File;
use InvalidArgumentException;
use MediaTransformError;
use MediaTransformInvalidParametersException;
use MediaTransformOutput;
use MediaWiki\Logger\LoggerFactory;
use MediaWiki\MainConfigNames;
use MediaWiki\MediaWikiEntryPoint;
use MediaWiki\MediaWikiServices;
use MediaWiki\Message\Message;
use MediaWiki\Permissions\PermissionStatus;
use MediaWiki\PoolCounter\PoolCounterWorkViaCallback;
use MediaWiki\Profiler\ProfilingContext;
use MediaWiki\Request\HeaderCallback;
use MediaWiki\Status\Status;
use MediaWiki\Title\Title;
use RepoGroup;
use UnregisteredLocalFile;
use Wikimedia\AtEase\AtEase;
use Wikimedia\Message\MessageSpecifier;
class ThumbnailEntryPoint extends MediaWikiEntryPoint {
/** @var string[] */
private $varyHeader = [];
/**
* Main entry point
*/
public function execute() {
global $wgTrivialMimeDetection;
ProfilingContext::singleton()->init(
MW_ENTRY_POINT,
'stream'
);
// Don't use fancy MIME detection, just check the file extension for jpg/gif/png.
// NOTE: This only works as long as to StreamFile::contentTypeFromPath
// get this setting from global state. When StreamFile gets refactored,
// we need to find a better way.
$wgTrivialMimeDetection = true;
$this->handleRequest();
}
protected function doPrepareForOutput() {
// No-op.
// Do not call parent::doPrepareForOutput() to avoid
// commitMainTransaction() getting called.
}
protected function handleRequest() {
$this->streamThumb( $this->getRequest()->getQueryValuesOnly() );
}
private function getRepoGroup(): RepoGroup {
return $this->getServiceContainer()->getRepoGroup();
}
/**
* Stream a thumbnail specified by parameters
*
* @param 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)
*
* @return void
*/
protected function streamThumb( array $params ) {
$headers = []; // HTTP headers to send
$fileName = $params['f'] ?? '';
// Backwards compatibility parameters
if ( isset( $params['w'] ) ) {
$params['width'] = $params['w'];
unset( $params['w'] );
}
if ( isset( $params['width'] ) && substr( $params['width'], -2 ) == 'px' ) {
// strip the px (pixel) suffix, if found
$params['width'] = substr( $params['width'], 0, -2 );
}
if ( isset( $params['p'] ) ) {
$params['page'] = $params['p'];
}
// Is this a thumb of an archived file?
$isOld = ( isset( $params['archived'] ) && $params['archived'] );
unset( $params['archived'] ); // handlers don't care
// Is this a thumb of a temp file?
$isTemp = ( isset( $params['temp'] ) && $params['temp'] );
unset( $params['temp'] ); // handlers don't care
$services = $this->getServiceContainer();
// Some basic input validation
$fileName = strtr( $fileName, '\\/', '__' );
$localRepo = $services->getRepoGroup()->getLocalRepo();
$archiveTimestamp = null;
// Actually fetch the image. Method depends on whether it is archived or not.
if ( $isTemp ) {
$repo = $localRepo->getTempRepo();
$img = new UnregisteredLocalFile( false, $repo,
# Temp files are hashed based on the name without the timestamp.
# The thumbnails will be hashed based on the entire name however.
# @todo fix this convention to actually be reasonable.
$repo->getZonePath( 'public' ) . '/' . $repo->getTempHashPath( $fileName ) . $fileName
);
} elseif ( $isOld ) {
// Format is <timestamp>!<name>
$bits = explode( '!', $fileName, 2 );
if ( count( $bits ) != 2 ) {
$this->thumbError( 404, $this->getContext()->msg( 'badtitletext' )->parse() );
return;
}
$archiveTimestamp = $bits[0];
$title = Title::makeTitleSafe( NS_FILE, $bits[1] );
if ( !$title ) {
$this->thumbError( 404, $this->getContext()->msg( 'badtitletext' )->parse() );
return;
}
$img = $localRepo->newFromArchiveName( $title, $fileName );
} else {
$img = $localRepo->newFile( $fileName );
}
// Check the source file title
if ( !$img ) {
$this->thumbError( 404, $this->getContext()->msg( 'badtitletext' )->parse() );
return;
}
// Check permissions if there are read restrictions
if ( $this->maybeDenyAccess( $img ) ) {
return;
}
// Check if the file is hidden
if ( $img->isDeleted( File::DELETED_FILE ) ) {
$this->thumbErrorText( 404, "The source file '$fileName' does not exist." );
return;
}
// Do rendering parameters extraction from thumbnail name.
if ( isset( $params['thumbName'] ) ) {
$params = $this->extractThumbParams( $img, $params );
}
if ( $params == null ) {
$this->thumbErrorText( 400, 'The specified thumbnail parameters are not recognized.' );
return;
}
// Check the source file storage path
if ( !$img->exists() ) {
$redirected = $this->maybeDoRedirect(
$img,
$params,
$isTemp,
$isOld,
$archiveTimestamp
);
if ( !$redirected ) {
// If it's not a redirect that has a target as a local file, give 404.
$this->thumbErrorText(
404,
"The source file '$fileName' does not exist."
);
}
$this->applyVaryHeader();
return;
} elseif ( $img->getPath() === false ) {
$this->thumbErrorText( 400, "The source file '$fileName' is not locally accessible." );
return;
}
// Check IMS against the source file
// This means that clients can keep a cached copy even after it has been deleted on the server
if ( $this->maybeNotModified( $img ) ) {
return;
}
$rel404 = $params['rel404'] ?? null;
unset( $params['r'] ); // ignore 'r' because we unconditionally pass File::RENDER
unset( $params['f'] ); // We're done with 'f' parameter.
unset( $params['rel404'] ); // moved to $rel404
// Get the normalized thumbnail name from the parameters...
try {
$thumbName = $img->thumbName( $params );
if ( !strlen( $thumbName ?? '' ) ) { // invalid params?
throw new MediaTransformInvalidParametersException(
'Empty return from File::thumbName'
);
}
$thumbName2 = $img->thumbName( $params, File::THUMB_FULL_NAME ); // b/c; "long" style
} catch ( MediaTransformInvalidParametersException $e ) {
$this->thumbErrorText(
400,
'The specified thumbnail parameters are not valid: ' . $e->getMessage()
);
return;
}
// For 404 handled thumbnails, we only use the base name of the URI
// for the thumb params and the parent directory for the source file name.
// Check that the zone relative path matches up so CDN caches won't pick
// up thumbs that would not be purged on source file deletion (T36231).
if ( $rel404 !== null ) { // thumbnail was handled via 404
if (
$this->maybeNormalizeRel404Path(
$img,
$rel404,
$thumbName,
$thumbName2
)
) {
$this->applyVaryHeader();
return;
}
}
$dispositionType = isset( $params['download'] ) ? 'attachment' : 'inline';
// Suggest a good name for users downloading this thumbnail
$headers[] =
'Content-Disposition: ' . $img->getThumbDisposition( $thumbName, $dispositionType );
$this->applyVaryHeader();
// Stream the file if it exists already...
$thumbPath = $img->getThumbPath( $thumbName );
if ( $this->maybeStreamExistingThumbnail( $img, $thumbName, $thumbPath, $headers ) ) {
return;
}
if ( $this->maybeEnforceRateLimits( $img, $params ) ) {
return;
}
$thumbProxyUrl = $img->getRepo()->getThumbProxyUrl();
if ( strlen( $thumbProxyUrl ?? '' ) ) {
$this->proxyThumbnailRequest( $img, $thumbName );
// No local fallback when in proxy mode
return;
} else {
// Generate the thumbnail locally
[ $thumb, $errorMsg, $errorCode ] = $this->generateThumbnail( $img, $params, $thumbName, $thumbPath );
}
$this->prepareForOutput();
if ( !$thumb ) {
$errorMsg ??= 'unknown error'; // Just to make Phan happy, shouldn't happen.
$this->thumbError( $errorCode, $errorMsg, null, [ 'file' => $thumbName, 'path' => $thumbPath ] );
} else {
// Stream the file if there were no errors
/** @var MediaTransformOutput $thumb */
'@phan-var MediaTransformOutput $thumb';
$status = $thumb->streamFileWithStatus( $headers );
if ( !$status->isOK() ) {
$this->thumbError( 500, 'Could not stream the file', $status->getWikiText( false, false, 'en' ), [
'file' => $thumbName, 'path' => $thumbPath,
'error' => $status->getWikiText( false, false, 'en' ) ] );
}
}
}
/**
* Proxies thumbnail request to a service that handles thumbnailing
*
* @param File $img
* @param string $thumbName
*/
private function proxyThumbnailRequest( $img, $thumbName ) {
$thumbProxyUrl = $img->getRepo()->getThumbProxyUrl();
// Instead of generating the thumbnail ourselves, we proxy the request to another service
$thumbProxiedUrl = $thumbProxyUrl . $img->getThumbRel( $thumbName );
$req = MediaWikiServices::getInstance()->getHttpRequestFactory()->create( $thumbProxiedUrl, [], __METHOD__ );
$secret = $img->getRepo()->getThumbProxySecret();
// Pass a secret key shared with the proxied service if any
if ( strlen( $secret ?? '' ) ) {
$req->setHeader( 'X-Swift-Secret', $secret );
}
// Send request to proxied service
$req->execute();
HeaderCallback::warnIfHeadersSent();
// Simply serve the response from the proxied service as-is
$this->header( 'HTTP/1.1 ' . $req->getStatus() );
$headers = $req->getResponseHeaders();
foreach ( $headers as $key => $values ) {
foreach ( $values as $value ) {
$this->header( $key . ': ' . $value, false );
}
}
$this->print( $req->getContent() );
}
/**
* Actually try to generate a new thumbnail
*
* @param File $file
* @param array $params
* @param string $thumbName
* @param string $thumbPath
* @return array [ $thumb, $errorHtml, $errorCode ], which will be
* either [MediaTransformOutput, null, int] or [null, string, int].
* @phan-return array{0:?MediaTransformOutput, 1:?string, 2:int}
*/
protected function generateThumbnail( File $file, array $params, $thumbName, $thumbPath ) {
$attemptFailureEpoch = $this->getConfig( MainConfigNames::AttemptFailureEpoch );
$services = MediaWikiServices::getInstance()->getObjectCacheFactory();
$cache = $services->getLocalClusterInstance();
$key = $cache->makeKey(
'attempt-failures',
$attemptFailureEpoch,
$file->getRepo()->getName(),
$file->getSha1(),
md5( $thumbName )
);
// Check if this file keeps failing to render
if ( $cache->get( $key ) >= 4 ) {
return [
null,
$this->getContext()->msg( 'thumbnail_image-failure-limit', 4 )->escaped(),
500,
];
}
$done = false;
// Record failures on PHP fatals in addition to caching exceptions
register_shutdown_function( static function () use ( $cache, &$done, $key ) {
if ( !$done ) { // transform() gave a fatal
// Randomize TTL to reduce stampedes
$cache->incrWithInit( $key, $cache::TTL_HOUR + mt_rand( 0, 300 ) );
}
} );
/** @var MediaTransformOutput $thumb|null */
$thumb = null;
$errorHtml = null;
'@phan-var MediaTransformOutput $thumb|false';
// guard thumbnail rendering with PoolCounter to avoid stampedes
// expensive files use a separate PoolCounter config so it is possible
// to set up a global limit on them
if ( $file->isExpensiveToThumbnail() ) {
$poolCounterType = 'FileRenderExpensive';
} else {
$poolCounterType = 'FileRender';
}
// Thumbnail isn't already there, so create the new thumbnail...
try {
$work = new PoolCounterWorkViaCallback( $poolCounterType, sha1( $file->getName() ),
[
'doWork' => static function () use ( $file, $params ) {
return $file->transform( $params, File::RENDER_NOW );
},
'doCachedWork' => static function () use ( $file, $params, $thumbPath ) {
// If the worker that finished made this thumbnail then use it.
// Otherwise, it probably made a different thumbnail for this file.
return $file->getRepo()->fileExists( $thumbPath )
? $file->transform( $params, File::RENDER_NOW )
: false; // retry once more in exclusive mode
},
'error' => function ( Status $status ) {
return $this->getContext()->msg( 'generic-pool-error' )->parse() . '<hr>' . $status->getHTML();
}
]
);
$result = $work->execute();
if ( $result instanceof MediaTransformOutput ) {
$thumb = $result;
} elseif ( is_string( $result ) ) { // error
$errorHtml = $result;
}
} catch ( Exception $e ) {
// Tried to select a page on a non-paged file?
}
/** @noinspection PhpUnusedLocalVariableInspection */
$done = true; // no PHP fatal occurred
if ( !$thumb || $thumb->isError() ) {
// Randomize TTL to reduce stampedes
$cache->incrWithInit( $key, $cache::TTL_HOUR + mt_rand( 0, 300 ) );
}
// Check for thumbnail generation errors...
$msg = $this->getContext()->msg( 'thumbnail_error' );
$errorCode = null;
if ( !$thumb ) {
$errorHtml = $errorHtml ?: $msg->rawParams( 'File::transform() returned false' );
$errorCode = 500;
} elseif ( $thumb instanceof MediaTransformError ) {
$errorHtml = $thumb->getMsg();
$errorCode = $thumb->getHttpStatusCode();
} elseif ( !$thumb->hasFile() ) {
$errorHtml = $msg->rawParams( 'No path supplied in thumbnail object' );
$errorCode = 500;
} elseif ( $thumb->fileIsSource() ) {
$errorHtml = $msg
->rawParams( 'Image was not scaled, is the requested width bigger than the source?' );
$errorCode = 400;
}
if ( $errorCode && $errorHtml ) {
if ( $errorHtml instanceof MessageSpecifier &&
$errorHtml->getKey() === 'thumbnail_image-failure-limit'
) {
$errorCode = 429;
}
if ( $errorHtml instanceof Message ) {
$errorHtml = $errorHtml->escaped();
}
return [ null, $errorHtml, $errorCode ];
}
return [ $thumb, null, 200 ];
}
/**
* Convert a thumbnail name (122px-foo.png) to parameters, using
* file handler.
*
* @param File $file File object for file in question
* @param array $params Array of parameters so far
* @return array|null Parameters array with more parameters, or null
*/
private function extractThumbParams( $file, $params ) {
if ( !isset( $params['thumbName'] ) ) {
throw new InvalidArgumentException( "No thumbnail name passed to extractThumbParams" );
}
$thumbname = $params['thumbName'];
unset( $params['thumbName'] );
// FIXME: Files in the temp zone don't set a MIME type, which means
// they don't have a handler. Which means we can't parse the param
// string. However, not a big issue as what good is a param string
// if you have no handler to make use of the param string and
// actually generate the thumbnail.
$handler = $file->getHandler();
// Based on UploadStash::parseKey
$fileNamePos = strrpos( $thumbname, $params['f'] );
if ( $fileNamePos === false ) {
// Maybe using a short filename? (see FileRepo::nameForThumb)
$fileNamePos = strrpos( $thumbname, 'thumbnail' );
}
if ( $handler && $fileNamePos !== false ) {
$paramString = substr( $thumbname, 0, $fileNamePos - 1 );
$extraParams = $handler->parseParamString( $paramString );
if ( $extraParams !== false ) {
return $params + $extraParams;
}
}
// As a last ditch fallback, use the traditional common parameters
if ( preg_match( '!^(page(\d*)-)*(\d*)px-[^/]*$!', $thumbname, $matches ) ) {
[ /* all */, /* pagefull */, $pagenum, $size ] = $matches;
$params['width'] = $size;
if ( $pagenum ) {
$params['page'] = $pagenum;
}
return $params; // valid thumbnail URL
}
return null;
}
/**
* Output a thumbnail generation error message
*
* @param int $status
* @param string $msgText Plain text (will be html escaped)
* @return void
*/
protected function thumbErrorText( $status, $msgText ) {
$this->thumbError( $status, htmlspecialchars( $msgText, ENT_NOQUOTES ) );
}
/**
* Output a thumbnail generation error message
*
* @param int $status
* @param string $msgHtml HTML
* @param string|null $msgText Short error description, for internal logging. Defaults to $msgHtml.
* Only used for HTTP 500 errors.
* @param array $context Error context, for internal logging. Only used for HTTP 500 errors.
* @return void
*/
protected function thumbError( $status, $msgHtml, $msgText = null, $context = [] ) {
$showHostnames = $this->getConfig( MainConfigNames::ShowHostnames );
HeaderCallback::warnIfHeadersSent();
if ( $this->getResponse()->headersSent() ) {
LoggerFactory::getInstance( 'thumbnail' )->error(
'Error after output had been started. Output may be corrupt or truncated. ' .
'Original error: ' . ( $msgText ?: $msgHtml ) . " (Status $status)",
$context
);
return;
}
$this->header( 'Cache-Control: no-cache' );
$this->header( 'Content-Type: text/html; charset=utf-8' );
if ( $status == 400 || $status == 404 || $status == 429 ) {
$this->status( $status );
} elseif ( $status == 403 ) {
$this->status( 403 );
$this->header( 'Vary: Cookie' );
} else {
LoggerFactory::getInstance( 'thumbnail' )->error( $msgText ?: $msgHtml, $context );
$this->status( 500 );
}
if ( $showHostnames ) {
$this->header( 'X-MW-Thumbnail-Renderer: ' . wfHostname() );
$url = htmlspecialchars(
$this->getServerInfo( 'REQUEST_URI' ) ?? '',
ENT_NOQUOTES
);
$hostname = htmlspecialchars( wfHostname(), ENT_NOQUOTES );
$debug = "<!-- $url -->\n<!-- $hostname -->\n";
} else {
$debug = '';
}
$content = <<<EOT
<!DOCTYPE html>
<html><head>
<meta charset="UTF-8" />
<meta name="color-scheme" content="light dark" />
<title>Error generating thumbnail</title>
</head>
<body>
<h1>Error generating thumbnail</h1>
<p>
$msgHtml
</p>
$debug
</body>
</html>
EOT;
$this->header( 'Content-Length: ' . strlen( $content ) );
$this->print( $content );
}
/**
* @return bool true if redirected
*/
private function maybeDoRedirect(
File $img,
array $params,
bool $isTemp,
bool $isOld,
?string $archiveTimestamp
): bool {
$varyOnXFP = $this->getConfig( MainConfigNames::VaryOnXFP );
$redirectedLocation = false;
if ( !$isTemp ) {
// Check for file redirect
// Since redirects are associated with pages, not versions of files,
// we look for the most current version to see if its a redirect.
$localRepo = $this->getRepoGroup()->getLocalRepo();
$possRedirFile = $localRepo->findFile( $img->getName() );
if ( $possRedirFile && $possRedirFile->getRedirected() !== null ) {
$redirTarget = $possRedirFile->getName();
$targetFile = $localRepo->newFile(
Title::makeTitleSafe(
NS_FILE,
$redirTarget
)
);
if ( $targetFile->exists() ) {
$newThumbName = $targetFile->thumbName( $params );
if ( $isOld ) {
$newThumbUrl = $targetFile->getArchiveThumbUrl(
$archiveTimestamp . '!' . $targetFile->getName(),
$newThumbName
);
} else {
$newThumbUrl = $targetFile->getThumbUrl( $newThumbName );
}
$redirectedLocation = $this->getUrlUtils()->expand(
$newThumbUrl,
PROTO_CURRENT
) ?? false;
}
}
}
if ( $redirectedLocation ) {
// File has been moved. Give redirect.
$response = $this->getResponse();
$response->statusHeader( 302 );
$response->header( 'Location: ' . $redirectedLocation );
$response->header(
'Expires: ' . gmdate( 'D, d M Y H:i:s', time() + 12 * 3600 ) . ' GMT'
);
if ( $varyOnXFP ) {
$this->vary( 'X-Forwarded-Proto' );
}
$response->header( 'Content-Length: 0' );
return true;
}
return false;
}
private function vary( $header ) {
$this->varyHeader[] = $header;
}
private function applyVaryHeader() {
if ( count( $this->varyHeader ) ) {
$this->header( 'Vary: ' . implode( ', ', $this->varyHeader ) );
}
}
/**
* @return bool true if access was denied
*/
private function maybeDenyAccess( File $img ): bool {
$permissionLookup = $this->getServiceContainer()->getGroupPermissionsLookup();
if ( !$permissionLookup->groupHasPermission( '*', 'read' ) ) {
$authority = $this->getContext()->getAuthority();
$imgTitle = $img->getTitle();
if ( !$imgTitle || !$authority->authorizeRead( 'read', $imgTitle ) ) {
$this->thumbErrorText(
403,
'Access denied. You do not have permission to access the source file.'
);
return true;
}
$this->header( 'Cache-Control: private' );
$this->vary( 'Cookie' );
}
return false;
}
/**
* @return bool true if not modified
*/
private function maybeNotModified( File $img ): bool {
if ( $this->getServerInfo( 'HTTP_IF_MODIFIED_SINCE', '' ) !== '' ) {
// Fix IE brokenness
$imsString = preg_replace(
'/;.*$/',
'',
$this->getServerInfo( 'HTTP_IF_MODIFIED_SINCE' ) ?? ''
);
// Calculate time
AtEase::suppressWarnings();
$imsUnix = strtotime( $imsString );
AtEase::restoreWarnings();
if ( wfTimestamp( TS_UNIX, $img->getTimestamp() ) <= $imsUnix ) {
$this->status( 304 );
return true;
}
}
return false;
}
/**
* @param File $img
* @param string $rel404
* @param string|false $thumbName
* @param string|false $thumbName2
*
* @return bool
*/
private function maybeNormalizeRel404Path(
File $img,
string $rel404,
$thumbName,
$thumbName2
): bool {
$varyOnXFP = $this->getConfig( MainConfigNames::VaryOnXFP );
if ( rawurldecode( $rel404 ) === $img->getThumbRel( $thumbName ) ) {
// Request for the canonical thumbnail name
return false;
} elseif ( rawurldecode( $rel404 ) === $img->getThumbRel( $thumbName2 ) ) {
// Request for the "long" thumbnail name; redirect to canonical name
$target = $this->getUrlUtils()->expand(
$img->getThumbUrl( $thumbName ),
PROTO_CURRENT
) ?? false;
$this->status( 301 );
$this->header( 'Location: ' . $target );
$this->header(
'Expires: ' . gmdate( 'D, d M Y H:i:s', time() + 7 * 86400 ) . ' GMT'
);
if ( $varyOnXFP ) {
$this->vary( 'X-Forwarded-Proto' );
}
return true;
} else {
$this->thumbErrorText(
404,
"The given path of the specified thumbnail is incorrect; expected '" .
$img->getThumbRel( $thumbName ) . "' but got '" . rawurldecode( $rel404 ) . "'."
);
return true;
}
}
/**
* @return bool true if we attempted to stream the thumb, even if it failed.
*/
private function maybeStreamExistingThumbnail(
File $img,
string $thumbName,
string $thumbPath,
array $headers
): bool {
$stats = $this->getServiceContainer()->getStatsFactory();
if ( $img->getRepo()->fileExists( $thumbPath ) ) {
$starttime = microtime( true );
$status = $img->getRepo()->streamFileWithStatus(
$thumbPath,
$headers
);
$streamtime = microtime( true ) - $starttime;
if ( $status->isOK() ) {
$stats->getTiming( 'media_thumbnail_stream_seconds' )
->copyToStatsdAt( 'media.thumbnail.stream' )
->observe( $streamtime * 1000 );
} else {
$this->thumbError(
500,
'Could not stream the file',
$status->getWikiText( false, false, 'en' ),
[
'file' => $thumbName,
'path' => $thumbPath,
'error' => $status->getWikiText( false, false, 'en' ),
]
);
}
return true;
}
return false;
}
private function maybeEnforceRateLimits( File $img, array $params ) {
$authority = $this->getContext()->getAuthority();
$status = PermissionStatus::newEmpty();
if ( !wfThumbIsStandard( $img, $params )
&& !$authority->authorizeAction( 'renderfile-nonstandard', $status )
) {
$statusFormatter = $this->getServiceContainer()->getFormatterFactory()
->getStatusFormatter( $this->getContext() );
$this->thumbError( 429, $statusFormatter->getHTML( $status ) );
return true;
} elseif ( !$authority->authorizeAction( 'renderfile', $status ) ) {
$statusFormatter = $this->getServiceContainer()->getFormatterFactory()
->getStatusFormatter( $this->getContext() );
$this->thumbError( 429, $statusFormatter->getHTML( $status ) );
return true;
}
return false;
}
}

File Metadata

Mime Type
text/x-php
Expires
Sat, May 16, 14:59 (1 d, 40 m)
Storage Engine
local-disk
Storage Format
Raw Data
Storage Handle
48/f4/b9425594ffa97c368c59c9de9423
Default Alt Text
ThumbnailEntryPoint.php (25 KB)

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