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| 1 | <?php |
| 2 | /** |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License as published by |
| 5 | * the Free Software Foundation; either version 2 of the License, or |
| 6 | * (at your option) any later version. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License along |
| 14 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 16 | * http://www.gnu.org/copyleft/gpl.html |
| 17 | * |
| 18 | * @file |
| 19 | */ |
| 20 | |
| 21 | use MediaWiki\MainConfigNames; |
| 22 | use MediaWiki\MediaWikiServices; |
| 23 | use MediaWiki\Status\Status; |
| 24 | use MediaWiki\Title\Title; |
| 25 | use Wikimedia\Rdbms\IDBAccessObject; |
| 26 | |
| 27 | /** |
| 28 | * Job for asynchronous rendering of thumbnails, e.g. after new uploads. |
| 29 | * |
| 30 | * @ingroup JobQueue |
| 31 | */ |
| 32 | class ThumbnailRenderJob extends Job { |
| 33 | public function __construct( Title $title, array $params ) { |
| 34 | parent::__construct( 'ThumbnailRender', $title, $params ); |
| 35 | } |
| 36 | |
| 37 | public function run() { |
| 38 | $uploadThumbnailRenderMethod = MediaWikiServices::getInstance() |
| 39 | ->getMainConfig()->get( MainConfigNames::UploadThumbnailRenderMethod ); |
| 40 | |
| 41 | $transformParams = $this->params['transformParams']; |
| 42 | |
| 43 | $file = MediaWikiServices::getInstance()->getRepoGroup()->getLocalRepo() |
| 44 | ->newFile( $this->title ); |
| 45 | $file->load( IDBAccessObject::READ_LATEST ); |
| 46 | |
| 47 | if ( $file && $file->exists() ) { |
| 48 | if ( $uploadThumbnailRenderMethod === 'jobqueue' ) { |
| 49 | $thumb = $file->transform( $transformParams, File::RENDER_NOW ); |
| 50 | |
| 51 | if ( !$thumb || $thumb->isError() ) { |
| 52 | if ( $thumb instanceof MediaTransformError ) { |
| 53 | $this->setLastError( __METHOD__ . ': thumbnail couldn\'t be generated:' . |
| 54 | $thumb->toText() ); |
| 55 | } else { |
| 56 | $this->setLastError( __METHOD__ . ': thumbnail couldn\'t be generated' ); |
| 57 | } |
| 58 | return false; |
| 59 | } |
| 60 | $this->maybeEnqueueNextPage( $transformParams ); |
| 61 | return true; |
| 62 | } elseif ( $uploadThumbnailRenderMethod === 'http' ) { |
| 63 | $res = $this->hitThumbUrl( $file, $transformParams ); |
| 64 | $this->maybeEnqueueNextPage( $transformParams ); |
| 65 | return $res; |
| 66 | } else { |
| 67 | $this->setLastError( __METHOD__ . ': unknown thumbnail render method ' . |
| 68 | $uploadThumbnailRenderMethod ); |
| 69 | return false; |
| 70 | } |
| 71 | } else { |
| 72 | $this->setLastError( __METHOD__ . ': file doesn\'t exist' ); |
| 73 | return false; |
| 74 | } |
| 75 | } |
| 76 | |
| 77 | /** |
| 78 | * @param LocalFile $file |
| 79 | * @param array $transformParams |
| 80 | * @return bool Success status (error will be set via setLastError() when false) |
| 81 | */ |
| 82 | protected function hitThumbUrl( LocalFile $file, $transformParams ) { |
| 83 | $config = MediaWikiServices::getInstance()->getMainConfig(); |
| 84 | $uploadThumbnailRenderHttpCustomHost = |
| 85 | $config->get( MainConfigNames::UploadThumbnailRenderHttpCustomHost ); |
| 86 | $uploadThumbnailRenderHttpCustomDomain = |
| 87 | $config->get( MainConfigNames::UploadThumbnailRenderHttpCustomDomain ); |
| 88 | $handler = $file->getHandler(); |
| 89 | if ( !$handler ) { |
| 90 | $this->setLastError( __METHOD__ . ': could not get handler' ); |
| 91 | return false; |
| 92 | } elseif ( !$handler->normaliseParams( $file, $transformParams ) ) { |
| 93 | $this->setLastError( __METHOD__ . ': failed to normalize' ); |
| 94 | return false; |
| 95 | } |
| 96 | $thumbName = $file->thumbName( $transformParams ); |
| 97 | $thumbUrl = $file->getThumbUrl( $thumbName ); |
| 98 | |
| 99 | if ( $thumbUrl === null ) { |
| 100 | $this->setLastError( __METHOD__ . ': could not get thumb URL' ); |
| 101 | return false; |
| 102 | } |
| 103 | |
| 104 | if ( $uploadThumbnailRenderHttpCustomDomain ) { |
| 105 | $parsedUrl = wfGetUrlUtils()->parse( $thumbUrl ); |
| 106 | |
| 107 | if ( !isset( $parsedUrl['path'] ) || $parsedUrl['path'] === '' ) { |
| 108 | $this->setLastError( __METHOD__ . ": invalid thumb URL: $thumbUrl" ); |
| 109 | return false; |
| 110 | } |
| 111 | |
| 112 | $thumbUrl = '//' . $uploadThumbnailRenderHttpCustomDomain . $parsedUrl['path']; |
| 113 | } |
| 114 | |
| 115 | wfDebug( __METHOD__ . ": hitting url {$thumbUrl}" ); |
| 116 | |
| 117 | // T203135 We don't wait for the request to complete, as this is mostly fire & forget. |
| 118 | // Looking at the HTTP status of requests that take less than 1s is a double check. |
| 119 | $request = MediaWikiServices::getInstance()->getHttpRequestFactory()->create( |
| 120 | $thumbUrl, |
| 121 | [ 'method' => 'HEAD', 'followRedirects' => true, 'timeout' => 1 ], |
| 122 | __METHOD__ |
| 123 | ); |
| 124 | |
| 125 | if ( $uploadThumbnailRenderHttpCustomHost ) { |
| 126 | $request->setHeader( 'Host', $uploadThumbnailRenderHttpCustomHost ); |
| 127 | } |
| 128 | |
| 129 | $status = $request->execute(); |
| 130 | $statusCode = $request->getStatus(); |
| 131 | wfDebug( __METHOD__ . ": received status {$statusCode}" ); |
| 132 | |
| 133 | // 400 happens when requesting a size greater or equal than the original |
| 134 | // TODO use proper error signaling. 400 could mean a number of other things. |
| 135 | if ( $statusCode === 200 || $statusCode === 301 || $statusCode === 302 || $statusCode === 400 ) { |
| 136 | return true; |
| 137 | } elseif ( $statusCode ) { |
| 138 | $this->setLastError( __METHOD__ . ": incorrect HTTP status $statusCode when hitting $thumbUrl" ); |
| 139 | } elseif ( $status->hasMessage( 'http-timed-out' ) ) { |
| 140 | // T203135 we ignore timeouts, as it would be inefficient for this job to wait for |
| 141 | // minutes for the slower thumbnails to complete. |
| 142 | return true; |
| 143 | } else { |
| 144 | $this->setLastError( __METHOD__ . ': HTTP request failure: ' |
| 145 | . Status::wrap( $status )->getWikiText( false, false, 'en' ) ); |
| 146 | } |
| 147 | return false; |
| 148 | } |
| 149 | |
| 150 | private function maybeEnqueueNextPage( $transformParams ) { |
| 151 | if ( |
| 152 | ( $this->params['enqueueNextPage'] ?? false ) && |
| 153 | ( $transformParams['page'] ?? 0 ) < ( $this->params['pageLimit'] ?? 0 ) |
| 154 | ) { |
| 155 | $transformParams['page']++; |
| 156 | $job = new ThumbnailRenderJob( |
| 157 | $this->getTitle(), |
| 158 | [ |
| 159 | 'transformParams' => $transformParams, |
| 160 | 'enqueueNextPage' => true, |
| 161 | 'pageLimit' => $this->params['pageLimit'] |
| 162 | ] |
| 163 | ); |
| 164 | |
| 165 | MediaWikiServices::getInstance()->getJobQueueGroup()->lazyPush( [ $job ] ); |
| 166 | } |
| 167 | } |
| 168 | |
| 169 | /** |
| 170 | * Whether to retry the job. |
| 171 | * @return bool |
| 172 | */ |
| 173 | public function allowRetries() { |
| 174 | // ThumbnailRenderJob is a warmup for the thumbnails cache, |
| 175 | // so loosing it is not a problem. Most times the job fails |
| 176 | // for non-renderable or missing images which will not be fixed |
| 177 | // by a retry, but will create additional load on the renderer. |
| 178 | return false; |
| 179 | } |
| 180 | } |