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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\Logger\LoggerFactory; |
| 22 | use MediaWiki\Page\PageLookup; |
| 23 | use MediaWiki\Page\PageRecord; |
| 24 | use MediaWiki\Parser\Parsoid\ParsoidOutputAccess; |
| 25 | use MediaWiki\Revision\RevisionLookup; |
| 26 | use MediaWiki\Revision\SlotRecord; |
| 27 | use Psr\Log\LoggerInterface; |
| 28 | |
| 29 | /** |
| 30 | * @ingroup JobQueue |
| 31 | * @internal |
| 32 | * @since 1.40 |
| 33 | */ |
| 34 | class ParsoidCachePrewarmJob extends Job { |
| 35 | private LoggerInterface $logger; |
| 36 | private ParsoidOutputAccess $parsoidOutputAccess; |
| 37 | private PageLookup $pageLookup; |
| 38 | private RevisionLookup $revisionLookup; |
| 39 | |
| 40 | /** |
| 41 | * @param array $params |
| 42 | * @param ParsoidOutputAccess $parsoidOutputAccess |
| 43 | * @param PageLookup $pageLookup |
| 44 | * @param RevisionLookup $revisionLookup |
| 45 | */ |
| 46 | public function __construct( |
| 47 | array $params, |
| 48 | ParsoidOutputAccess $parsoidOutputAccess, |
| 49 | PageLookup $pageLookup, |
| 50 | RevisionLookup $revisionLookup |
| 51 | ) { |
| 52 | parent::__construct( 'parsoidCachePrewarm', $params ); |
| 53 | |
| 54 | // TODO: find a way to inject the logger |
| 55 | $this->logger = LoggerFactory::getInstance( 'ParsoidCachePrewarmJob' ); |
| 56 | $this->parsoidOutputAccess = $parsoidOutputAccess; |
| 57 | $this->pageLookup = $pageLookup; |
| 58 | $this->revisionLookup = $revisionLookup; |
| 59 | } |
| 60 | |
| 61 | /** |
| 62 | * @param int $revisionId |
| 63 | * @param PageRecord $page |
| 64 | * @param array $params Additional options for the job. Known keys: |
| 65 | * - causeAction: Indicate what action caused the job to be scheduled. Used for monitoring. |
| 66 | * - options: Flags to be passed to ParsoidOutputAccess:getParserOutput. |
| 67 | * May be set to ParserOutputAccess::OPT_FORCE_PARSE to force a parsing even if there |
| 68 | * already is cached output. |
| 69 | * |
| 70 | * @return JobSpecification |
| 71 | */ |
| 72 | public static function newSpec( |
| 73 | int $revisionId, |
| 74 | PageRecord $page, |
| 75 | array $params = [] |
| 76 | ): JobSpecification { |
| 77 | $pageId = $page->getId(); |
| 78 | $pageTouched = $page->getTouched(); |
| 79 | |
| 80 | $params += [ 'options' => 0 ]; |
| 81 | |
| 82 | $params += self::newRootJobParams( |
| 83 | "parsoidCachePrewarm:$pageId:$revisionId:$pageTouched:{$params['options']}" |
| 84 | ); |
| 85 | |
| 86 | $opts = [ 'removeDuplicates' => true ]; |
| 87 | |
| 88 | return new JobSpecification( |
| 89 | 'parsoidCachePrewarm', |
| 90 | [ |
| 91 | 'revId' => $revisionId, |
| 92 | 'pageId' => $pageId, |
| 93 | 'page_touched' => $pageTouched, |
| 94 | ] + $params, |
| 95 | $opts |
| 96 | ); |
| 97 | } |
| 98 | |
| 99 | private function doParsoidCacheUpdate() { |
| 100 | $page = $this->pageLookup->getPageById( $this->params['pageId'] ); |
| 101 | $revId = $this->params['revId']; |
| 102 | |
| 103 | if ( $page === null ) { |
| 104 | // This happens when the page got deleted in the meantime. |
| 105 | $this->logger->info( "Page with ID {$this->params['pageId']} not found" ); |
| 106 | return; |
| 107 | } |
| 108 | |
| 109 | if ( $page->getLatest() !== $revId ) { |
| 110 | $this->logger->info( |
| 111 | 'ParsoidCachePrewarmJob: The ID of the new revision does not match the page\'s current revision ID' |
| 112 | ); |
| 113 | return; |
| 114 | } |
| 115 | |
| 116 | $rev = $this->revisionLookup->getRevisionById( $revId ); |
| 117 | if ( !$rev ) { |
| 118 | return; |
| 119 | } |
| 120 | |
| 121 | $parserOpts = ParserOptions::newFromAnon(); |
| 122 | |
| 123 | $renderReason = $this->params['causeAction'] ?? $this->command; |
| 124 | $parserOpts->setRenderReason( $renderReason ); |
| 125 | |
| 126 | $mainSlot = $rev->getSlot( SlotRecord::MAIN ); |
| 127 | if ( !$this->parsoidOutputAccess->supportsContentModel( $mainSlot->getModel() ) ) { |
| 128 | $this->logger->debug( __METHOD__ . ': Parsoid does not support content model ' . $mainSlot->getModel() ); |
| 129 | return; |
| 130 | } |
| 131 | |
| 132 | $this->logger->debug( __METHOD__ . ': generating Parsoid output' ); |
| 133 | |
| 134 | // We may get the OPT_FORCE_PARSE flag this way |
| 135 | $options = $this->params['options'] ?? 0; |
| 136 | |
| 137 | // getParserOutput() will write to ParserCache. |
| 138 | $status = $this->parsoidOutputAccess->getParserOutput( $page, $parserOpts, $rev, $options ); |
| 139 | |
| 140 | if ( !$status->isOK() ) { |
| 141 | $this->logger->error( __METHOD__ . ': Parsoid error', [ |
| 142 | 'errors' => $status->getErrors(), |
| 143 | 'page' => $page->getDBkey(), |
| 144 | 'rev' => $rev->getId(), |
| 145 | ] ); |
| 146 | } |
| 147 | } |
| 148 | |
| 149 | public function run() { |
| 150 | $this->doParsoidCacheUpdate(); |
| 151 | |
| 152 | return true; |
| 153 | } |
| 154 | } |