mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/TemplateData
synced 2024-11-14 19:27:45 +00:00
342 lines
12 KiB
PHP
342 lines
12 KiB
PHP
<?php
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use MediaWiki\MediaWikiServices;
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/**
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* Hooks for TemplateData extension
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*
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* @file
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* @ingroup Extensions
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*/
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class TemplateDataHooks {
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/**
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* @param EditPage $editPage
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* @param OutputPage $out
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*/
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public static function onEditPageShowEditFormFields( EditPage $editPage, OutputPage $out ) {
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// TODO: Remove when not needed any more, see T267926
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if ( $out->getRequest()->getBool( 'TemplateDataGeneratorUsed' ) ) {
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// Recreate the dynamically created field after the user clicked "preview"
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$out->addHTML( Html::hidden( 'TemplateDataGeneratorUsed', true ) );
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}
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}
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/**
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* Register parser hooks
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* @param Parser $parser
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*/
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public static function onParserFirstCallInit( Parser $parser ) {
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$parser->setHook( 'templatedata', [ __CLASS__, 'render' ] );
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}
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/**
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* Conditionally register the jquery.uls.data module, in case they've already been
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* registered by the UniversalLanguageSelector extension or the VisualEditor extension.
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*
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* @param ResourceLoader &$resourceLoader
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*/
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public static function onResourceLoaderRegisterModules( ResourceLoader &$resourceLoader ) {
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$resourceModules = $resourceLoader->getConfig()->get( 'ResourceModules' );
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$name = 'jquery.uls.data';
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if ( !isset( $resourceModules[$name] ) && !$resourceLoader->isModuleRegistered( $name ) ) {
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$resourceLoader->register( [
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'jquery.uls.data' => [
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'localBasePath' => dirname( __DIR__ ),
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'remoteExtPath' => 'TemplateData',
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'scripts' => [
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'lib/jquery.uls/src/jquery.uls.data.js',
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'lib/jquery.uls/src/jquery.uls.data.utils.js',
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],
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'targets' => [ 'desktop', 'mobile' ],
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]
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] );
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}
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}
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/**
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* @param WikiPage &$page
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* @param User &$user
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* @param Content &$content
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* @param string &$summary
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* @param bool $minor
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* @param bool|null $watchthis
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* @param string $sectionanchor
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* @param int &$flags
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* @param Status &$status
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* @return bool
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*/
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public static function onPageContentSave( WikiPage &$page, &$user, &$content, &$summary, $minor,
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$watchthis, $sectionanchor, &$flags, &$status
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) {
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// The PageContentSave hook provides raw $text, but not $parser because at this stage
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// the page is not actually parsed yet. Which means we can't know whether self::render()
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// got a valid tag or not. Looking at $text directly is not a solution either as
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// it may not be in the current page (it can be transcluded).
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// Since there is no later hook that allows aborting the save and showing an error,
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// we will have to trigger the parser ourselves.
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// Fortunately this causes no overhead since the below (copied from WikiPage::doEditContent,
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// right after this hook is ran) has guards that lazy-init and return early if called again
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// later by the real WikiPage.
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// Specify format the same way the API and EditPage do to avoid extra parsing
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$format = $content->getContentHandler()->getDefaultFormat();
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$editInfo = $page->prepareContentForEdit( $content, null, $user, $format );
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$parserOutput = $editInfo->getOutput();
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$templateDataStatus = self::getStatusFromParserOutput( $parserOutput );
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if ( $templateDataStatus instanceof Status && !$templateDataStatus->isOK() ) {
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// Abort edit, show error message from TemplateDataBlob::getStatus
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$status->merge( $templateDataStatus );
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return false;
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}
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// TODO: Remove when not needed any more, see T267926
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self::logChangeEvent( $page, $parserOutput->getProperty( 'templatedata' ), $user );
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return true;
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}
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/**
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* @param WikiPage $page
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* @param string|false $newPageProperty
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* @param User $user
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*/
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private static function logChangeEvent( WikiPage $page, $newPageProperty, User $user ) {
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if ( !ExtensionRegistry::getInstance()->isLoaded( 'EventLogging' ) ) {
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return;
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}
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$services = MediaWikiServices::getInstance();
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$title = $page->getTitle();
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$pageId = $page->getId();
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$props = $services->getPageProps()->getProperties( $title, 'templatedata' );
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// The JSON strings here are guaranteed to be normalized (and possibly compressed) the same
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// way. No need to normalize them again for this comparison.
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if ( $newPageProperty === ( $props[$pageId] ?? false ) ) {
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return;
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}
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$generatorUsed = RequestContext::getMain()->getRequest()->getBool( 'TemplateDataGeneratorUsed' );
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$revision = $page->getRevisionRecord();
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// Note: We know that irrelevant changes (e.g. whitespace changes) aren't logged here
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EventLogging::logEvent(
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'TemplateDataEditor',
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// See https://meta.wikimedia.org/w/?oldid=20746997, keep in sync with extension.json!
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20746997,
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[
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// Note: The "Done" button is disabled unless something changed, which means it's
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// very likely (but not guaranteed) the generator was used to make the changes
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'action' => $generatorUsed ? 'save-tag-edit-generator-used' : 'save-tag-edit-no-generator',
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'page_id' => $pageId,
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'page_namespace' => $title->getNamespace(),
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'page_title' => $title->getText(),
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'rev_id' => $revision ? $revision->getId() : 0,
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'user_edit_count' => $user->getEditCount() ?? 0,
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'user_id' => $user->getId(),
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]
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);
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}
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/**
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* Parser hook registering the GUI module only in edit pages.
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*
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* @param EditPage $editPage
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* @param OutputPage $output
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*/
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public static function onEditPage( EditPage $editPage, OutputPage $output ) {
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global $wgTemplateDataUseGUI;
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if ( $wgTemplateDataUseGUI ) {
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if ( $output->getTitle()->inNamespace( NS_TEMPLATE ) ) {
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$output->addModules( 'ext.templateDataGenerator.editTemplatePage' );
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}
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}
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}
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/**
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* Parser hook for <templatedata>.
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* If there is any JSON provided, render the template documentation on the page.
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*
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* @param string|null $input The content of the tag.
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* @param array $args The attributes of the tag.
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* @param Parser $parser Parser instance available to render
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* wikitext into html, or parser methods.
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* @param PPFrame $frame Can be used to see what template parameters ("{{{1}}}", etc.)
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* this hook was used with.
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*
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* @return string HTML to insert in the page.
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*/
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public static function render( $input, $args, Parser $parser, $frame ) {
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$ti = TemplateDataBlob::newFromJSON( wfGetDB( DB_REPLICA ), $input ?? '' );
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$status = $ti->getStatus();
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if ( !$status->isOK() ) {
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self::setStatusToParserOutput( $parser->getOutput(), $status );
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return '<div class="errorbox">' . $status->getHTML() . '</div>';
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}
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// Store the blob as page property for retrieval by ApiTemplateData.
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// But, don't store it if we're parsing a doc sub page, because:
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// - The doc subpage should not appear in ApiTemplateData as a documented
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// template itself, which is confusing to users (T54448).
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// - The doc subpage should not appear at Special:PagesWithProp.
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// - Storing the blob twice in the database is inefficient (T52512).
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$title = $parser->getTitle();
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$docPage = wfMessage( 'templatedata-doc-subpage' )->inContentLanguage();
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if ( !$title->isSubpage() || $title->getSubpageText() !== $docPage->plain() ) {
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$parser->getOutput()->setProperty( 'templatedata', $ti->getJSONForDatabase() );
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}
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$parser->getOutput()->addModuleStyles( [
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'ext.templateData',
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'ext.templateData.images',
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'jquery.tablesorter.styles',
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] );
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$parser->getOutput()->addModules( 'jquery.tablesorter' );
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$parser->getOutput()->setEnableOOUI( true );
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$userLang = $parser->getOptions()->getUserLangObj();
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// FIXME: this hard-codes default skin, but it is needed because
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// ::getHtml() will need a theme singleton to be set.
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OutputPage::setupOOUI( 'bogus', $userLang->getDir() );
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return $ti->getHtml( $userLang );
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}
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/**
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* Fetch templatedata for an array of titles.
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*
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* @todo Document this hook
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*
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* The following questions are yet to be resolved.
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* (a) Should we extend functionality to looking up an array of titles instead of one?
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* The signature allows for an array of titles to be passed in, but the
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* current implementation is not optimized for the multiple-title use case.
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* (b) Should this be a lookup service instead of this faux hook?
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* This will be resolved separately.
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*
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* @param array $tplTitles
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* @param stdclass[] &$tplData
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*/
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public static function onParserFetchTemplateData( array $tplTitles, array &$tplData ): void {
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$tplData = [];
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// This inefficient implementation is currently tuned for
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// Parsoid's use case where it requests info for exactly one title.
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// For a real batch use case, this code will need an overhaul.
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foreach ( $tplTitles as $tplTitle ) {
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$title = Title::newFromText( $tplTitle );
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if ( !$title ) {
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// Invalid title
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$tplData[$tplTitle] = null;
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continue;
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}
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if ( $title->isRedirect() ) {
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$title = ( new WikiPage( $title ) )->getRedirectTarget();
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if ( !$title ) {
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// Invalid redirecting title
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$tplData[$tplTitle] = null;
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continue;
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}
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}
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if ( !$title->exists() ) {
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$tplData[$tplTitle] = (object)[ "missing" => true ];
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continue;
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}
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// FIXME: PageProps returns takes titles but returns by page id.
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// This means we need to do our own look up and hope it matches.
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// Spoiler, sometimes it won't. When that happens, the user won't
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// get any templatedata-based interfaces for that template.
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// The fallback is to not serve data for that template, which
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// the clients have to support anyway, so the impact is minimal.
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// It is also expected that such race conditions resolve themselves
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// after a few seconds so the old "try again later" should cover this.
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$pageId = $title->getArticleID();
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$props = PageProps::getInstance()->getProperties( $title, 'templatedata' );
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if ( !isset( $props[$pageId] ) ) {
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// No templatedata
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$tplData[$tplTitle] = (object)[ "notemplatedata" => true ];
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continue;
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}
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$tdb = TemplateDataBlob::newFromDatabase( wfGetDB( DB_REPLICA ), $props[$pageId] );
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$status = $tdb->getStatus();
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if ( !$status->isOK() ) {
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// Invalid data. Parsoid has no use for the error.
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$tplData[$tplTitle] = (object)[ "notemplatedata" => true ];
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continue;
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}
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$tplData[$tplTitle] = $tdb->getData();
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}
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}
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/**
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* Write the status to ParserOutput object.
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* @param ParserOutput $parserOutput
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* @param Status $status
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*/
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public static function setStatusToParserOutput( ParserOutput $parserOutput, Status $status ) {
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$parserOutput->setExtensionData( 'TemplateDataStatus',
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self::jsonSerializeStatus( $status ) );
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}
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/**
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* @param ParserOutput $parserOutput
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* @return Status|null
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*/
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public static function getStatusFromParserOutput( ParserOutput $parserOutput ) {
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$status = $parserOutput->getExtensionData( 'TemplateDataStatus' );
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if ( is_array( $status ) ) {
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return self::newStatusFromJson( $status );
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}
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return $status;
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}
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/**
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* @param array $status contains StatusValue ok and errors fields (does not serialize value)
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* @return Status
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*/
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public static function newStatusFromJson( array $status ) : Status {
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if ( $status['ok'] ) {
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return Status::newGood();
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} else {
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$statusObj = new Status();
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$errors = $status['errors'];
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foreach ( $errors as $error ) {
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$statusObj->fatal( $error['message'], ...$error['params'] );
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}
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$warnings = $status['warnings'];
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foreach ( $warnings as $warning ) {
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$statusObj->warning( $warning['message'], ...$warning['params'] );
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}
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return $statusObj;
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}
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}
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/**
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* @param Status $status
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* @return array contains StatusValue ok and errors fields (does not serialize value)
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*/
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public static function jsonSerializeStatus( Status $status ) : array {
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if ( $status->isOK() ) {
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return [
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'ok' => true
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];
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} else {
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list( $errorsOnlyStatus, $warningsOnlyStatus ) = $status->splitByErrorType();
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// note that non-scalar values are not supported in errors or warnings
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return [
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'ok' => false,
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'errors' => $errorsOnlyStatus->getErrors(),
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'warnings' => $warningsOnlyStatus->getErrors()
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];
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}
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}
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}
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