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| 1 | <?php |
| 2 | |
| 3 | namespace MediaWiki\Extension\ParserMigration; |
| 4 | |
| 5 | use ApiBase; |
| 6 | use MediaWiki\MediaWikiServices; |
| 7 | use MediaWiki\Revision\SlotRecord; |
| 8 | use MediaWiki\Title\Title; |
| 9 | use ParserOptions; |
| 10 | use RuntimeException; |
| 11 | use Wikimedia\ParamValidator\ParamValidator; |
| 12 | |
| 13 | class ApiParserMigration extends ApiBase { |
| 14 | /** @var string[] */ |
| 15 | private static $configNames = [ |
| 16 | 0 => 'old', |
| 17 | 1 => 'new', |
| 18 | ]; |
| 19 | |
| 20 | public function execute() { |
| 21 | $params = $this->extractRequestParams(); |
| 22 | |
| 23 | $title = $this->getTitleOrPageId( $params )->getTitle(); |
| 24 | // Follow redirects by default. Redirect link output is not |
| 25 | // interesting for rendering diff comparisons. Provide clients |
| 26 | // the option to choose the redirect page via '&redirect=no'. |
| 27 | if ( $title->isRedirect() && ( |
| 28 | !isset( $params['redirect'] ) || $params['redirect'] !== 'no' |
| 29 | ) ) { |
| 30 | $redirectLookup = MediaWikiServices::getInstance()->getRedirectLookup(); |
| 31 | $redirect = $redirectLookup->getRedirectTarget( $title ); |
| 32 | $title = Title::castFromLinkTarget( $redirect ) ?? $title; |
| 33 | } |
| 34 | $revisionRecord = MediaWikiServices::getInstance()->getRevisionLookup()->getRevisionByTitle( $title ); |
| 35 | if ( !$revisionRecord ) { |
| 36 | $this->dieWithError( 'apierror-missingtitle' ); |
| 37 | } |
| 38 | $content = $revisionRecord->getContent( SlotRecord::MAIN ); |
| 39 | if ( !$content ) { |
| 40 | $this->dieWithError( [ 'apierror-missingcontent-pageid', $revisionRecord->getPageId() ] ); |
| 41 | } |
| 42 | |
| 43 | $configIndexesByName = array_flip( self::$configNames ); |
| 44 | $configIndexes = []; |
| 45 | foreach ( $params['config'] as $configName ) { |
| 46 | if ( !isset( $configIndexesByName[$configName] ) ) { |
| 47 | throw new RuntimeException( 'Invalid config name, should have already been validated' ); |
| 48 | } |
| 49 | $configIndexes[] = $configIndexesByName[$configName]; |
| 50 | } |
| 51 | |
| 52 | $mechanism = new Mechanism(); |
| 53 | $user = $this->getUser(); |
| 54 | $options = ParserOptions::newFromContext( $this->getContext() ); |
| 55 | $outputs = $mechanism->parse( $content, $title, $options, $user, $configIndexes ); |
| 56 | |
| 57 | $result = $this->getResult(); |
| 58 | foreach ( $configIndexes as $index ) { |
| 59 | $result->addValue( null, self::$configNames[$index], $outputs[$index]->getText() ); |
| 60 | } |
| 61 | } |
| 62 | |
| 63 | /** @inheritDoc */ |
| 64 | public function isInternal() { |
| 65 | return true; |
| 66 | } |
| 67 | |
| 68 | /** @inheritDoc */ |
| 69 | public function getAllowedParams() { |
| 70 | return [ |
| 71 | 'title' => [ |
| 72 | ParamValidator::PARAM_TYPE => 'string', |
| 73 | ParamValidator::PARAM_REQUIRED => true, |
| 74 | ], |
| 75 | 'config' => [ |
| 76 | ParamValidator::PARAM_TYPE => self::$configNames, |
| 77 | ParamValidator::PARAM_DEFAULT => 'old|new', |
| 78 | ParamValidator::PARAM_ISMULTI => true, |
| 79 | ApiBase::PARAM_HELP_MSG_PER_VALUE => [], |
| 80 | ], |
| 81 | 'redirect' => [ |
| 82 | ParamValidator::PARAM_TYPE => 'string', |
| 83 | ParamValidator::PARAM_REQUIRED => false, |
| 84 | ], |
| 85 | ]; |
| 86 | } |
| 87 | } |