mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/VisualEditor
synced 2024-11-30 17:14:42 +00:00
d2e49b16f7
Part of my secret plan to delete ApiParsoidTrait. * Inject RevisionLookup into ApiVisualEditor * Use RevisionLookup::getRevisionById instead of ApiParsoidTrait::getValidRevision * Use RevisionLookup::getRevisionByTitle instead of ApiParsoidTrait::getLatestRevision * Use standard MediaWiki error messages * Delete unused ApiParsoidTrait::getValidRevision * Delete unused ApiParsoidTrait::getLatestRevision Depends-On: I7244ee4916fb011fad5faa1d9f837e83f6ac2dc1 Change-Id: I8089c0c516d9dba52e931a0a80740c0361216dbd
165 lines
4.8 KiB
PHP
165 lines
4.8 KiB
PHP
<?php
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/**
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* Helper functions for contacting Parsoid/RESTBase from the action API.
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*
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* @file
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* @ingroup Extensions
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* @copyright 2011-2020 VisualEditor Team and others; see AUTHORS.txt
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* @license MIT
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*/
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namespace MediaWiki\Extension\VisualEditor;
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use Language;
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use MediaWiki\MediaWikiServices;
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use MediaWiki\Revision\RevisionRecord;
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use Message;
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use Psr\Log\LoggerInterface;
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use Psr\Log\NullLogger;
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use Title;
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use WebRequest;
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trait ApiParsoidTrait {
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/**
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* @var LoggerInterface
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*/
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private $logger = null;
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/**
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* @return LoggerInterface
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*/
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protected function getLogger(): LoggerInterface {
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return $this->logger ?: new NullLogger();
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}
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/**
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* @param LoggerInterface $logger
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*/
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protected function setLogger( LoggerInterface $logger ) {
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$this->logger = $logger;
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}
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/**
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* @param array $response
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*/
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private function forwardErrorsAndCacheHeaders( array $response ) {
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if ( !empty( $response['error'] ) ) {
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$this->dieWithError( $response['error'] );
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}
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// If response was received directly from Varnish, use the response
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// (RP) header to declare the cache hit and pass the data to the client.
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$headers = $response['headers'] ?? [];
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if ( isset( $headers['x-cache'] ) && strpos( $headers['x-cache'], 'hit' ) !== false ) {
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$this->getRequest()->response()->header( 'X-Cache: cached-response=true' );
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}
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}
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/**
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* Request page HTML from RESTBase
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*
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* @param RevisionRecord $revision Page revision
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* @return array The RESTBase server's response
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*/
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protected function requestRestbasePageHtml( RevisionRecord $revision ): array {
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$title = Title::newFromLinkTarget( $revision->getPageAsLinkTarget() );
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$lang = self::getPageLanguage( $title );
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$response = $this->getParsoidClient()->getPageHtml( $revision, $lang );
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$this->forwardErrorsAndCacheHeaders( $response );
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return $response;
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}
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/**
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* Transform HTML to wikitext via Parsoid through RESTbase. Wrapper for ::postData().
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*
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* @param Title $title The title of the page
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* @param string $html The HTML of the page to be transformed
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* @param int|null $oldid What oldid revision, if any, to base the request from (default: `null`)
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* @param string|null $etag The ETag to set in the HTTP request header
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* @return array The RESTbase server's response, 'code', 'reason', 'headers' and 'body'
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*/
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protected function transformHTML(
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Title $title, string $html, int $oldid = null, string $etag = null
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): array {
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$lang = self::getPageLanguage( $title );
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$response = $this->getParsoidClient()->transformHTML( $title, $lang, $html, $oldid, $etag );
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$this->forwardErrorsAndCacheHeaders( $response );
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return $response;
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}
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/**
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* Transform wikitext to HTML via Parsoid through RESTbase. Wrapper for ::postData().
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*
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* @param Title $title The title of the page to use as the parsing context
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* @param string $wikitext The wikitext fragment to parse
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* @param bool $bodyOnly Whether to provide only the contents of the `<body>` tag
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* @param int|null $oldid What oldid revision, if any, to base the request from (default: `null`)
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* @param bool $stash Whether to stash the result in the server-side cache (default: `false`)
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* @return array The RESTbase server's response, 'code', 'reason', 'headers' and 'body'
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*/
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protected function transformWikitext(
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Title $title, string $wikitext, bool $bodyOnly, int $oldid = null, bool $stash = false
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): array {
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$lang = self::getPageLanguage( $title );
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$response = $this->getParsoidClient()->transformWikitext(
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$title,
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$lang,
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$wikitext,
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$bodyOnly,
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$oldid,
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$stash
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);
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$this->forwardErrorsAndCacheHeaders( $response );
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return $response;
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}
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/**
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* Get the page language from a title, using the content language as fallback on special pages
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*
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* @param Title $title
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* @return Language Content language
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*/
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public static function getPageLanguage( Title $title ): Language {
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if ( $title->isSpecial( 'CollabPad' ) ) {
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// Use the site language for CollabPad, as getPageLanguage just
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// returns the interface language for special pages.
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// TODO: Let the user change the document language on multi-lingual sites.
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return MediaWikiServices::getInstance()->getContentLanguage();
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} else {
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return $title->getPageLanguage();
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}
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}
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/**
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* @see VisualEditorParsoidClientFactory
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* @return ParsoidClient
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*/
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abstract protected function getParsoidClient(): ParsoidClient;
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/**
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* @see ApiBase
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* @param string|array|Message $msg See ApiErrorFormatter::addError()
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* @param string|null $code See ApiErrorFormatter::addError()
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* @param array|null $data See ApiErrorFormatter::addError()
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* @param int|null $httpCode HTTP error code to use
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* @return never
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*/
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abstract public function dieWithError( $msg, $code = null, $data = null, $httpCode = null );
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/**
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* @see ContextSource
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* @return WebRequest
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*/
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abstract public function getRequest();
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}
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