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| 1 | <?php |
| 2 | namespace MediaWiki\Content\Renderer; |
| 3 | |
| 4 | use Content; |
| 5 | use MediaWiki\Content\IContentHandlerFactory; |
| 6 | use MediaWiki\Page\PageReference; |
| 7 | use MediaWiki\Parser\ParserOutput; |
| 8 | use MediaWiki\Revision\RevisionRecord; |
| 9 | use ParserOptions; |
| 10 | use Wikimedia\UUID\GlobalIdGenerator; |
| 11 | |
| 12 | /** |
| 13 | * A service to render content. |
| 14 | * |
| 15 | * @since 1.38 |
| 16 | */ |
| 17 | class ContentRenderer { |
| 18 | /** @var IContentHandlerFactory */ |
| 19 | private $contentHandlerFactory; |
| 20 | |
| 21 | private GlobalIdGenerator $globalIdGenerator; |
| 22 | |
| 23 | /** |
| 24 | * @param IContentHandlerFactory $contentHandlerFactory |
| 25 | * @param GlobalIdGenerator $globalIdGenerator |
| 26 | */ |
| 27 | public function __construct( |
| 28 | IContentHandlerFactory $contentHandlerFactory, |
| 29 | GlobalIdGenerator $globalIdGenerator |
| 30 | ) { |
| 31 | $this->contentHandlerFactory = $contentHandlerFactory; |
| 32 | $this->globalIdGenerator = $globalIdGenerator; |
| 33 | } |
| 34 | |
| 35 | /** |
| 36 | * Returns a ParserOutput object containing information derived from this content. |
| 37 | * |
| 38 | * @param Content $content |
| 39 | * @param PageReference $page |
| 40 | * @param RevisionRecord|null $revision |
| 41 | * @param ParserOptions|null $parserOptions |
| 42 | * @param bool $generateHtml |
| 43 | * |
| 44 | * @return ParserOutput |
| 45 | * @note Passing an integer as $rev was deprecated in MW 1.42 |
| 46 | */ |
| 47 | public function getParserOutput( |
| 48 | Content $content, |
| 49 | PageReference $page, |
| 50 | $revision = null, |
| 51 | ?ParserOptions $parserOptions = null, |
| 52 | bool $generateHtml = true |
| 53 | ): ParserOutput { |
| 54 | $revId = null; |
| 55 | $revTimestamp = null; |
| 56 | if ( is_int( $revision ) ) { |
| 57 | wfDeprecated( __METHOD__ . ' with integer revision id', '1.42' ); |
| 58 | $revId = $revision; |
| 59 | } elseif ( $revision !== null ) { |
| 60 | $revId = $revision->getId(); |
| 61 | $revTimestamp = $revision->getTimestamp(); |
| 62 | } |
| 63 | $cacheTime = wfTimestampNow(); |
| 64 | $contentHandler = $this->contentHandlerFactory->getContentHandler( $content->getModel() ); |
| 65 | $cpoParams = new ContentParseParams( $page, $revId, $parserOptions, $generateHtml ); |
| 66 | |
| 67 | $parserOutput = $contentHandler->getParserOutput( $content, $cpoParams ); |
| 68 | // Set the cache parameters, if not previously set. |
| 69 | // |
| 70 | // It is expected that this will be where most are set for the first |
| 71 | // time, but a ContentHandler can (for example) use a content-based |
| 72 | // hash for the render id by setting it inside |
| 73 | // ContentHandler::getParserOutput(); any such custom render id |
| 74 | // will not be overwritten here. Similarly, a ContentHandler can |
| 75 | // continue to use the semi-documented feature of ::setCacheTime(-1) |
| 76 | // to indicate "not cacheable", and that will not be overwritten |
| 77 | // either. |
| 78 | if ( !$parserOutput->hasCacheTime() ) { |
| 79 | $parserOutput->setCacheTime( $cacheTime ); |
| 80 | } |
| 81 | if ( $parserOutput->getRenderId() === null ) { |
| 82 | $parserOutput->setRenderId( $this->globalIdGenerator->newUUIDv1() ); |
| 83 | } |
| 84 | // Revision ID and Revision Timestamp are set here so that we don't |
| 85 | // have to load the revision row on view. |
| 86 | if ( $parserOutput->getCacheRevisionId() === null && $revId !== null ) { |
| 87 | $parserOutput->setCacheRevisionId( $revId ); |
| 88 | } |
| 89 | if ( $parserOutput->getRevisionTimestamp() === null && $revTimestamp !== null ) { |
| 90 | $parserOutput->setRevisionTimestamp( $revTimestamp ); |
| 91 | } |
| 92 | return $parserOutput; |
| 93 | } |
| 94 | } |