mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/VisualEditor
synced 2024-12-18 09:10:59 +00:00
d80a8a6abc
According to EventLogging 'editattemptstep' data the error hasn't happened in the last 90 days. It probably can't happen since we switched from RESTBase to direct Parsoid access, but keep the checks as assertions just in case. Change-Id: I0bad1e4364c2f1b154383bc1a984c4ccc83e1700
614 lines
20 KiB
PHP
614 lines
20 KiB
PHP
<?php
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/**
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* Parsoid/RESTBase+MediaWiki API wrapper.
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*
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* @file
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* @ingroup Extensions
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* @copyright 2011-2021 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 ApiBase;
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use ApiBlockInfoTrait;
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use ApiMain;
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use ApiResult;
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use Article;
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use Config;
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use ContentHandler;
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use DerivativeContext;
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use ExtensionRegistry;
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use IBufferingStatsdDataFactory;
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use MediaWiki\Content\Transform\ContentTransformer;
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use MediaWiki\EditPage\EditPage;
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use MediaWiki\EditPage\IntroMessageBuilder;
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use MediaWiki\EditPage\PreloadedContentBuilder;
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use MediaWiki\EditPage\TextboxBuilder;
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use MediaWiki\Language\RawMessage;
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use MediaWiki\Logger\LoggerFactory;
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use MediaWiki\MediaWikiServices;
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use MediaWiki\Page\PageReference;
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use MediaWiki\Page\WikiPageFactory;
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use MediaWiki\Request\DerivativeRequest;
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use MediaWiki\Revision\RevisionLookup;
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use MediaWiki\SpecialPage\SpecialPageFactory;
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use MediaWiki\Title\Title;
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use MediaWiki\User\TempUser\TempUserCreator;
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use MediaWiki\User\UserFactory;
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use MediaWiki\User\UserOptionsLookup;
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use MediaWiki\Watchlist\WatchlistManager;
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use MessageLocalizer;
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use RequestContext;
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use User;
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use Wikimedia\Assert\Assert;
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use Wikimedia\ParamValidator\ParamValidator;
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use WikitextContent;
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class ApiVisualEditor extends ApiBase {
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use ApiBlockInfoTrait;
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use ApiParsoidTrait;
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private RevisionLookup $revisionLookup;
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private TempUserCreator $tempUserCreator;
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private UserFactory $userFactory;
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private UserOptionsLookup $userOptionsLookup;
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private WatchlistManager $watchlistManager;
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private ContentTransformer $contentTransformer;
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private WikiPageFactory $wikiPageFactory;
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private IntroMessageBuilder $introMessageBuilder;
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private PreloadedContentBuilder $preloadedContentBuilder;
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private SpecialPageFactory $specialPageFactory;
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private VisualEditorParsoidClientFactory $parsoidClientFactory;
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public function __construct(
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ApiMain $main,
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string $name,
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RevisionLookup $revisionLookup,
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TempUserCreator $tempUserCreator,
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UserFactory $userFactory,
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UserOptionsLookup $userOptionsLookup,
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WatchlistManager $watchlistManager,
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ContentTransformer $contentTransformer,
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IBufferingStatsdDataFactory $statsdDataFactory,
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WikiPageFactory $wikiPageFactory,
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IntroMessageBuilder $introMessageBuilder,
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PreloadedContentBuilder $preloadedContentBuilder,
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SpecialPageFactory $specialPageFactory,
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VisualEditorParsoidClientFactory $parsoidClientFactory
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) {
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parent::__construct( $main, $name );
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$this->setLogger( LoggerFactory::getInstance( 'VisualEditor' ) );
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$this->setStats( $statsdDataFactory );
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$this->revisionLookup = $revisionLookup;
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$this->tempUserCreator = $tempUserCreator;
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$this->userFactory = $userFactory;
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$this->userOptionsLookup = $userOptionsLookup;
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$this->watchlistManager = $watchlistManager;
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$this->contentTransformer = $contentTransformer;
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$this->wikiPageFactory = $wikiPageFactory;
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$this->introMessageBuilder = $introMessageBuilder;
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$this->preloadedContentBuilder = $preloadedContentBuilder;
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$this->specialPageFactory = $specialPageFactory;
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$this->parsoidClientFactory = $parsoidClientFactory;
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}
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/**
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* @inheritDoc
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*/
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protected function getParsoidClient(): ParsoidClient {
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return $this->parsoidClientFactory->createParsoidClient(
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$this->getRequest()->getHeader( 'Cookie' )
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);
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}
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/**
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* @see EditPage::getUserForPermissions
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* @return User
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*/
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private function getUserForPermissions() {
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$user = $this->getUser();
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if ( $this->tempUserCreator->shouldAutoCreate( $user, 'edit' ) ) {
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return $this->userFactory->newUnsavedTempUser(
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$this->tempUserCreator->getStashedName( $this->getRequest()->getSession() )
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);
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}
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return $user;
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}
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/**
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* @see ApiParse::getUserForPreview
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* @return User
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*/
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private function getUserForPreview() {
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$user = $this->getUser();
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if ( $this->tempUserCreator->shouldAutoCreate( $user, 'edit' ) ) {
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return $this->userFactory->newUnsavedTempUser(
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$this->tempUserCreator->getStashedName( $this->getRequest()->getSession() )
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);
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}
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return $user;
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}
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/**
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* Run wikitext through the parser's Pre-Save-Transform
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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 to transform
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* @return string The transformed wikitext
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*/
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protected function pstWikitext( Title $title, $wikitext ) {
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$content = ContentHandler::makeContent( $wikitext, $title, CONTENT_MODEL_WIKITEXT );
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return $this->contentTransformer->preSaveTransform(
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$content,
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$title,
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$this->getUserForPreview(),
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$this->wikiPageFactory->newFromTitle( $title )->makeParserOptions( $this->getContext() )
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)
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->serialize( 'text/x-wiki' );
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}
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/**
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* @inheritDoc
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* @suppress PhanPossiblyUndeclaredVariable False positives
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*/
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public function execute() {
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$user = $this->getUser();
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$params = $this->extractRequestParams();
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$permissionManager = $this->getPermissionManager();
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$title = Title::newFromText( $params['page'] );
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if ( $title && $title->isSpecialPage() ) {
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// Convert Special:CollabPad/MyPage to MyPage so we can parsefragment properly
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[ $special, $subPage ] = $this->specialPageFactory->resolveAlias( $title->getDBkey() );
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if ( $special === 'CollabPad' ) {
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$title = Title::newFromText( $subPage );
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}
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}
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if ( !$title ) {
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$this->dieWithError( [ 'apierror-invalidtitle', wfEscapeWikiText( $params['page'] ) ] );
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}
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if ( !$title->canExist() ) {
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$this->dieWithError( 'apierror-pagecannotexist' );
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}
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wfDebugLog( 'visualeditor', "called on '$title' with paction: '{$params['paction']}'" );
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switch ( $params['paction'] ) {
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case 'parse':
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case 'wikitext':
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case 'metadata':
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// Dirty hack to provide the correct context for FlaggedRevs when it generates edit notices
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// and save dialog checkboxes. (T307852)
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// FIXME Don't write to globals! Eww.
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RequestContext::getMain()->setTitle( $title );
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$preloaded = false;
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$restbaseHeaders = null;
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$section = $params['section'] ?? null;
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// Get information about current revision
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if ( $title->exists() ) {
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$latestRevision = $this->revisionLookup->getRevisionByTitle( $title );
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if ( !$latestRevision ) {
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$this->dieWithError(
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[ 'apierror-missingrev-title', wfEscapeWikiText( $title->getPrefixedText() ) ],
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'nosuchrevid'
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);
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}
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if ( isset( $params['oldid'] ) ) {
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$revision = $this->revisionLookup->getRevisionById( $params['oldid'] );
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if ( !$revision ) {
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$this->dieWithError( [ 'apierror-nosuchrevid', $params['oldid'] ] );
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}
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} else {
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$revision = $latestRevision;
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}
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$baseTimestamp = $latestRevision->getTimestamp();
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$oldid = $revision->getId();
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// If requested, request HTML from Parsoid/RESTBase
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if ( $params['paction'] === 'parse' ) {
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$wikitext = $params['wikitext'] ?? null;
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if ( $wikitext !== null ) {
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$stash = $params['stash'];
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if ( $params['pst'] ) {
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$wikitext = $this->pstWikitext( $title, $wikitext );
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}
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if ( $section !== null ) {
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$sectionContent = new WikitextContent( $wikitext );
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$page = $this->wikiPageFactory->newFromTitle( $title );
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$newSectionContent = $page->replaceSectionAtRev(
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$section, $sectionContent, '', $oldid
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);
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'@phan-var WikitextContent $newSectionContent';
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$wikitext = $newSectionContent->getText();
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}
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$response = $this->transformWikitext(
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$title, $wikitext, false, $oldid, $stash
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);
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} else {
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$response = $this->requestRestbasePageHtml( $revision );
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}
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$content = $response['body'];
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$restbaseHeaders = $response['headers'];
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} elseif ( $params['paction'] === 'wikitext' ) {
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$apiParams = [
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'action' => 'query',
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'revids' => $oldid,
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'prop' => 'revisions',
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'rvprop' => 'content|ids'
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];
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$apiParams['rvsection'] = $section;
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$context = new DerivativeContext( $this->getContext() );
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$context->setRequest(
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new DerivativeRequest(
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$context->getRequest(),
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$apiParams,
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/* was posted? */ true
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)
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);
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$api = new ApiMain(
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$context,
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/* enable write? */ true
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);
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$api->execute();
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$result = $api->getResult()->getResultData();
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$pid = $title->getArticleID();
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$content = false;
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if ( isset( $result['query']['pages'][$pid]['revisions'] ) ) {
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foreach ( $result['query']['pages'][$pid]['revisions'] as $revArr ) {
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// Check 'revisions' is an array (T193718)
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if ( is_array( $revArr ) && $revArr['revid'] === $oldid ) {
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$content = $revArr['content'];
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}
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}
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}
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}
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} else {
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$revision = null;
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}
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// Use $title as the context page in every processed message (T300184)
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$localizerWithTitle = new class( $this, $title ) implements MessageLocalizer {
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private MessageLocalizer $base;
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private PageReference $page;
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public function __construct( MessageLocalizer $base, PageReference $page ) {
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$this->base = $base;
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$this->page = $page;
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}
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/**
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* @inheritDoc
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*/
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public function msg( $key, ...$params ) {
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return $this->base->msg( $key, ...$params )->page( $this->page );
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}
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};
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if ( !$title->exists() || $section === 'new' ) {
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if ( isset( $params['wikitext'] ) ) {
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$content = $params['wikitext'];
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if ( $params['pst'] ) {
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$content = $this->pstWikitext( $title, $content );
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}
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} else {
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$contentObj = $this->preloadedContentBuilder->getPreloadedContent(
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$title->toPageIdentity(),
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$user,
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$params['preload'],
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$params['preloadparams'] ?? [],
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$section
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);
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$dfltContent = $section === 'new' ? null :
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$this->preloadedContentBuilder->getDefaultContent( $title->toPageIdentity() );
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$preloaded = $dfltContent ? !$contentObj->equals( $dfltContent ) : !$contentObj->isEmpty();
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$content = $contentObj->serialize();
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}
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if ( $content !== '' && $params['paction'] !== 'wikitext' ) {
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$response = $this->transformWikitext( $title, $content, false, null, true );
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$content = $response['body'];
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$restbaseHeaders = $response['headers'];
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}
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$baseTimestamp = wfTimestampNow();
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$oldid = 0;
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}
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// Look at protection status to set up notices + surface class(es)
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$builder = new TextboxBuilder();
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$protectedClasses = $builder->getTextboxProtectionCSSClasses( $title );
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// Simplified EditPage::getEditPermissionErrors()
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// TODO: Use API
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// action=query&prop=info&intestactions=edit&intestactionsdetail=full&errorformat=html&errorsuselocal=1
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$permErrors = $permissionManager->getPermissionErrors(
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'edit', $this->getUserForPermissions(), $title, 'full' );
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if ( $permErrors ) {
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// Show generic permission errors, including page protection, user blocks, etc.
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$notice = $this->getOutput()->formatPermissionsErrorMessage( $permErrors, 'edit' );
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// That method returns wikitext (eww), hack to get it parsed:
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$notice = ( new RawMessage( '$1', [ $notice ] ) )->page( $title )->parseAsBlock();
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// Invent a message key 'permissions-error' to store in $notices
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// (This probably shouldn't use the notices system…)
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$notices = [ 'permissions-error' => $notice ];
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} else {
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$notices = $this->introMessageBuilder->getIntroMessages(
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IntroMessageBuilder::LESS_FRAMES,
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[
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// This message was not shown by VisualEditor before it was switched to use
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// IntroMessageBuilder, and it may be unexpected to display it now, so skip it.
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'editpage-head-copy-warn',
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// This message was not shown by VisualEditor previously, and on many Wikipedias it's
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// technically non-empty but hidden with CSS, and not a real edit notice (T337633).
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'editnotice-notext',
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],
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$localizerWithTitle,
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$title->toPageIdentity(),
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$revision,
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$user,
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$params['editintro'],
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null,
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false,
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$section
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);
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}
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// Will be false e.g. if user is blocked or page is protected
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$canEdit = !$permErrors;
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$blockinfo = null;
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// Blocked user notice
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if ( $permissionManager->isBlockedFrom( $user, $title, true ) ) {
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$block = $user->getBlock();
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if ( $block ) {
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// Already added to $notices via #getPermissionErrors above.
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// Add block info for MobileFrontend:
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$blockinfo = $this->getBlockDetails( $block );
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}
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}
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// HACK: Build a fake EditPage so we can get checkboxes from it
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// Deliberately omitting ,0 so oldid comes from request
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$article = new Article( $title );
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$editPage = new EditPage( $article );
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$req = $this->getRequest();
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$req->setVal( 'format', $editPage->contentFormat );
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// By reference for some reason (T54466)
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$editPage->importFormData( $req );
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$states = [
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'minor' => $this->userOptionsLookup->getOption( $user, 'minordefault' ) && $title->exists(),
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'watch' => $this->userOptionsLookup->getOption( $user, 'watchdefault' ) ||
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( $this->userOptionsLookup->getOption( $user, 'watchcreations' ) && !$title->exists() ) ||
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$this->watchlistManager->isWatched( $user, $title ),
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];
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$checkboxesDef = $editPage->getCheckboxesDefinition( $states );
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$checkboxesMessagesList = [];
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foreach ( $checkboxesDef as &$options ) {
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if ( isset( $options['tooltip'] ) ) {
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$checkboxesMessagesList[] = "accesskey-{$options['tooltip']}";
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$checkboxesMessagesList[] = "tooltip-{$options['tooltip']}";
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}
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if ( isset( $options['title-message'] ) ) {
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$checkboxesMessagesList[] = $options['title-message'];
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if ( !is_string( $options['title-message'] ) ) {
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// Extract only the key. Any parameters are included in the fake message definition
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// passed via $checkboxesMessages. (This changes $checkboxesDef by reference.)
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$options['title-message'] = $this->msg( $options['title-message'] )->getKey();
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}
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}
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$checkboxesMessagesList[] = $options['label-message'];
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if ( !is_string( $options['label-message'] ) ) {
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// Extract only the key. Any parameters are included in the fake message definition
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// passed via $checkboxesMessages. (This changes $checkboxesDef by reference.)
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$options['label-message'] = $this->msg( $options['label-message'] )->getKey();
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}
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}
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$checkboxesMessages = [];
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foreach ( $checkboxesMessagesList as $messageSpecifier ) {
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// $messageSpecifier may be a string or a Message object
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$message = $this->msg( $messageSpecifier );
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$checkboxesMessages[ $message->getKey() ] = $message->plain();
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}
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foreach ( $checkboxesDef as &$value ) {
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// Don't convert the boolean to empty string with formatversion=1
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$value[ApiResult::META_BC_BOOLS] = [ 'default' ];
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}
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$copyrightWarning = EditPage::getCopyrightWarning(
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$title,
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'parse',
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$this
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);
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// Copied from EditPage::maybeActivateTempUserCreate
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// Used by code in MobileFrontend and DiscussionTools.
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// TODO Make them use API
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// action=query&prop=info&intestactions=edit&intestactionsautocreate=1
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$wouldautocreate =
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!$user->isRegistered()
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&& $this->tempUserCreator->isAutoCreateAction( 'edit' )
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&& $permissionManager->userHasRight( $user, 'createaccount' );
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$result = [
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'result' => 'success',
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'notices' => $notices,
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'copyrightWarning' => $copyrightWarning,
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'checkboxesDef' => $checkboxesDef,
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'checkboxesMessages' => $checkboxesMessages,
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'protectedClasses' => implode( ' ', $protectedClasses ),
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'basetimestamp' => $baseTimestamp,
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'starttimestamp' => wfTimestampNow(),
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'oldid' => $oldid,
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'blockinfo' => $blockinfo,
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'wouldautocreate' => $wouldautocreate,
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'canEdit' => $canEdit,
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];
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if ( isset( $restbaseHeaders['etag'] ) ) {
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$result['etag'] = $restbaseHeaders['etag'];
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}
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if ( isset( $params['badetag'] ) ) {
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$badetag = $params['badetag'];
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$goodetag = $result['etag'] ?? '';
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$this->getLogger()->info(
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__METHOD__ . ": Client reported bad ETag: {badetag}, expected: {goodetag}",
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[
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'badetag' => $badetag,
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'goodetag' => $goodetag,
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]
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);
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}
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if ( isset( $content ) ) {
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Assert::postcondition( is_string( $content ), 'Content expected' );
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$result['content'] = $content;
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$result['preloaded'] = $preloaded;
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}
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break;
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case 'templatesused':
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// HACK: Build a fake EditPage so we can get checkboxes from it
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// Deliberately omitting ,0 so oldid comes from request
|
|
$article = new Article( $title );
|
|
$editPage = new EditPage( $article );
|
|
$result = $editPage->makeTemplatesOnThisPageList( $editPage->getTemplates() );
|
|
break;
|
|
|
|
case 'parsefragment':
|
|
$wikitext = $params['wikitext'];
|
|
if ( $wikitext === null ) {
|
|
$this->dieWithError( [ 'apierror-missingparam', 'wikitext' ] );
|
|
}
|
|
if ( $params['pst'] ) {
|
|
$wikitext = $this->pstWikitext( $title, $wikitext );
|
|
}
|
|
$content = $this->transformWikitext(
|
|
$title, $wikitext, true
|
|
)['body'];
|
|
Assert::postcondition( is_string( $content ), 'Content expected' );
|
|
$result = [
|
|
'result' => 'success',
|
|
'content' => $content
|
|
];
|
|
break;
|
|
}
|
|
|
|
$this->getResult()->addValue( null, $this->getModuleName(), $result );
|
|
}
|
|
|
|
/**
|
|
* Check if the configured allowed namespaces include the specified namespace
|
|
*
|
|
* @param Config $config
|
|
* @param int $namespaceId Namespace ID
|
|
* @return bool
|
|
*/
|
|
public static function isAllowedNamespace( Config $config, $namespaceId ) {
|
|
return in_array( $namespaceId, self::getAvailableNamespaceIds( $config ), true );
|
|
}
|
|
|
|
/**
|
|
* Get a list of allowed namespace IDs
|
|
*
|
|
* @param Config $config
|
|
* @return int[]
|
|
*/
|
|
public static function getAvailableNamespaceIds( Config $config ) {
|
|
$namespaceInfo = MediaWikiServices::getInstance()->getNamespaceInfo();
|
|
$configuredNamespaces = array_replace(
|
|
ExtensionRegistry::getInstance()->getAttribute( 'VisualEditorAvailableNamespaces' ),
|
|
$config->get( 'VisualEditorAvailableNamespaces' )
|
|
);
|
|
$normalized = [];
|
|
foreach ( $configuredNamespaces as $id => $enabled ) {
|
|
// Convert canonical namespace names to IDs
|
|
$id = $namespaceInfo->getCanonicalIndex( strtolower( $id ) ) ?? $id;
|
|
$normalized[$id] = $enabled && $namespaceInfo->exists( $id );
|
|
}
|
|
ksort( $normalized );
|
|
return array_keys( array_filter( $normalized ) );
|
|
}
|
|
|
|
/**
|
|
* Check if the configured allowed content models include the specified content model
|
|
*
|
|
* @param Config $config
|
|
* @param string $contentModel Content model ID
|
|
* @return bool
|
|
*/
|
|
public static function isAllowedContentType( Config $config, $contentModel ) {
|
|
$availableContentModels = array_merge(
|
|
ExtensionRegistry::getInstance()->getAttribute( 'VisualEditorAvailableContentModels' ),
|
|
$config->get( 'VisualEditorAvailableContentModels' )
|
|
);
|
|
return (bool)( $availableContentModels[$contentModel] ?? false );
|
|
}
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
public function getAllowedParams() {
|
|
return [
|
|
'page' => [
|
|
ParamValidator::PARAM_REQUIRED => true,
|
|
],
|
|
'badetag' => null,
|
|
'format' => [
|
|
ParamValidator::PARAM_DEFAULT => 'jsonfm',
|
|
ParamValidator::PARAM_TYPE => [ 'json', 'jsonfm' ],
|
|
],
|
|
'paction' => [
|
|
ParamValidator::PARAM_REQUIRED => true,
|
|
ParamValidator::PARAM_TYPE => [
|
|
'parse',
|
|
'metadata',
|
|
'templatesused',
|
|
'wikitext',
|
|
'parsefragment',
|
|
],
|
|
],
|
|
'wikitext' => [
|
|
ParamValidator::PARAM_TYPE => 'text',
|
|
ParamValidator::PARAM_DEFAULT => null,
|
|
],
|
|
'section' => null,
|
|
'stash' => false,
|
|
'oldid' => [
|
|
ParamValidator::PARAM_TYPE => 'integer',
|
|
],
|
|
'editintro' => null,
|
|
'pst' => false,
|
|
'preload' => null,
|
|
'preloadparams' => [
|
|
ParamValidator::PARAM_ISMULTI => true,
|
|
],
|
|
];
|
|
}
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
public function needsToken() {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
public function isInternal() {
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
public function isWriteMode() {
|
|
return false;
|
|
}
|
|
}
|