mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/DiscussionTools
synced 2024-11-24 00:13:36 +00:00
62ddb8bceb
getVal/getText can be expensive because they do Unicode normalization. We can skip this when we know we aren't going to do anything meaningful with the value anyway. Change-Id: I9d939a44df6b67bcd8429096d89600ce1566ca39
562 lines
19 KiB
PHP
562 lines
19 KiB
PHP
<?php
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/**
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* DiscussionTools extension hooks
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*
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* @file
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* @ingroup Extensions
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* @license MIT
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*/
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namespace MediaWiki\Extension\DiscussionTools\Hooks;
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use ExtensionRegistry;
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use IContextSource;
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use MediaWiki\Extension\DiscussionTools\CommentUtils;
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use MediaWiki\Extension\DiscussionTools\ContentThreadItemSet;
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use MediaWiki\Extension\Gadgets\GadgetRepo;
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use MediaWiki\Extension\VisualEditor\ParsoidHelper;
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use MediaWiki\Linker\LinkTarget;
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use MediaWiki\MediaWikiServices;
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use MediaWiki\Revision\RevisionRecord;
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use MediaWiki\User\UserIdentity;
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use MWException;
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use OutputPage;
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use Psr\Log\NullLogger;
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use RequestContext;
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use Title;
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use TitleValue;
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use Wikimedia\Assert\Assert;
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use Wikimedia\Parsoid\Utils\DOMCompat;
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use Wikimedia\Parsoid\Utils\DOMUtils;
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class HookUtils {
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public const REPLYTOOL = 'replytool';
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public const NEWTOPICTOOL = 'newtopictool';
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public const SOURCEMODETOOLBAR = 'sourcemodetoolbar';
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public const TOPICSUBSCRIPTION = 'topicsubscription';
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public const AUTOTOPICSUB = 'autotopicsub';
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public const VISUALENHANCEMENTS = 'visualenhancements';
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public const VISUALENHANCEMENTS_REPLY = 'visualenhancements_reply';
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public const VISUALENHANCEMENTS_PAGEFRAME = 'visualenhancements_pageframe';
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/**
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* @var string[] List of all sub-features. Will be used to generate:
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* - Feature override global: $wgDiscussionTools_FEATURE
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* - Body class: ext-discussiontools-FEATURE-enabled
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* - User option: discussiontools-FEATURE
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*/
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public const FEATURES = [
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// Can't use static:: in compile-time constants
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self::REPLYTOOL,
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self::NEWTOPICTOOL,
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self::SOURCEMODETOOLBAR,
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self::TOPICSUBSCRIPTION,
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self::AUTOTOPICSUB,
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self::VISUALENHANCEMENTS,
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self::VISUALENHANCEMENTS_REPLY,
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self::VISUALENHANCEMENTS_PAGEFRAME,
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];
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public const FEATURES_CONFLICT_WITH_GADGET = [
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self::REPLYTOOL,
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];
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protected static $propCache = [];
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/**
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* Check if a title has a page prop, and use an in-memory cache to avoid extra queries
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*
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* @param Title $title Title
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* @param string $prop Page property
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* @return bool Title has page property
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*/
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public static function hasPagePropCached( Title $title, string $prop ): bool {
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$id = $title->getArticleId();
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if ( !isset( static::$propCache[ $id ] ) ) {
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static::$propCache[ $id ] = [];
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}
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if ( !isset( static::$propCache[ $id ][ $prop ] ) ) {
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$services = MediaWikiServices::getInstance();
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$props = $services->getPageProps()->getProperties( $title, $prop );
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static::$propCache[ $id ][ $prop ] = isset( $props[ $id ] );
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}
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return static::$propCache[ $id ][ $prop ];
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}
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/**
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* Parse a revision by using the discussion parser on the HTML provided by Parsoid.
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*
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* @param RevisionRecord $revRecord
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* @return ContentThreadItemSet
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*/
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public static function parseRevisionParsoidHtml( RevisionRecord $revRecord ): ContentThreadItemSet {
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$services = MediaWikiServices::getInstance();
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$parsoidHelper = new ParsoidHelper(
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$services->getMainConfig(),
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new NullLogger(),
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false
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);
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// Get HTML for the revision
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$status = $parsoidHelper->requestRestbasePageHtml( $revRecord );
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if ( !$status->isOK() ) {
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[ 'message' => $msg, 'params' => $params ] = $status->getErrors()[0];
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throw new MWException( wfMessage( $msg, ...$params )->inLanguage( 'en' )->useDatabase( false )->text() );
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}
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$title = TitleValue::newFromPage( $revRecord->getPage() );
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$response = $status->getValue();
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$html = $response['body'];
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// Run the discussion parser on it
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$doc = DOMUtils::parseHTML( $html );
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$container = DOMCompat::getBody( $doc );
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CommentUtils::unwrapParsoidSections( $container );
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$parser = $services->getService( 'DiscussionTools.CommentParser' );
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return $parser->parse( $container, $title );
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}
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/**
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* @param UserIdentity $user
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* @param string $feature Feature to check for
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* @return bool
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*/
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public static function featureConflictsWithGadget( UserIdentity $user, string $feature ) {
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$dtConfig = MediaWikiServices::getInstance()->getConfigFactory()
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->makeConfig( 'discussiontools' );
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$gadgetName = $dtConfig->get( 'DiscussionToolsConflictingGadgetName' );
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if ( !$gadgetName ) {
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return false;
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}
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if ( !in_array( $feature, static::FEATURES_CONFLICT_WITH_GADGET ) ) {
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return false;
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}
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$extensionRegistry = ExtensionRegistry::getInstance();
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if ( $extensionRegistry->isLoaded( 'Gadgets' ) ) {
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$gadgetsRepo = GadgetRepo::singleton();
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$match = array_search( $gadgetName, $gadgetsRepo->getGadgetIds() );
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if ( $match !== false ) {
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try {
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return $gadgetsRepo->getGadget( $gadgetName )
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->isEnabled( $user );
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} catch ( \InvalidArgumentException $e ) {
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return false;
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}
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}
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}
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return false;
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}
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/**
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* Check if a DiscussionTools feature is available to this user
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*
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* @param UserIdentity $user
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* @param string|null $feature Feature to check for (one of static::FEATURES)
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* Null will check for any DT feature.
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* @return bool
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*/
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public static function isFeatureAvailableToUser( UserIdentity $user, ?string $feature = null ): bool {
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$services = MediaWikiServices::getInstance();
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$dtConfig = $services->getConfigFactory()->makeConfig( 'discussiontools' );
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if ( !$dtConfig->get( 'DiscussionToolsEnable' ) ) {
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return false;
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}
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if (
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( $feature === static::TOPICSUBSCRIPTION || $feature === static::AUTOTOPICSUB ) &&
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!$user->isRegistered()
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) {
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// Users must be logged in to use topic subscription
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return false;
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}
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$optionsLookup = $services->getUserOptionsLookup();
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if ( $feature ) {
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// Feature-specific override
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if ( $dtConfig->get( 'DiscussionTools_' . $feature ) !== 'default' ) {
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// Feature setting can be 'available' or 'unavailable', overriding any BetaFeatures settings
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return $dtConfig->get( 'DiscussionTools_' . $feature ) === 'available';
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}
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} else {
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// Non-feature-specific override, check for any feature
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foreach ( static::FEATURES as $feat ) {
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if ( $dtConfig->get( 'DiscussionTools_' . $feat ) === 'available' ) {
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return true;
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}
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}
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}
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// Being in the "test" group for this feature means it's enabled. This
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// overrules the wiki's beta feature setting. (However, a user who's
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// in the control group can still bypass this and enable the feature
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// normally.)
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$abtest = static::determineUserABTestBucket( $user, $feature );
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if ( $abtest === 'test' ) {
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return true;
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}
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// No feature-specific override found.
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if ( $dtConfig->get( 'DiscussionToolsBeta' ) ) {
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$betaenabled = $optionsLookup->getOption( $user, 'discussiontools-betaenable', 0 );
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return (bool)$betaenabled;
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}
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// Assume that if BetaFeature is turned off, or user has it enabled, that
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// some features are available.
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// If this isn't the case, then DiscussionToolsEnable should have been set to false.
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return true;
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}
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/**
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* Check if a DiscussionTools feature is enabled by this user
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*
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* @param UserIdentity $user
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* @param string|null $feature Feature to check for (one of static::FEATURES)
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* Null will check for any DT feature.
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* @return bool
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*/
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public static function isFeatureEnabledForUser( UserIdentity $user, ?string $feature = null ): bool {
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if ( !static::isFeatureAvailableToUser( $user, $feature ) ) {
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return false;
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}
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$services = MediaWikiServices::getInstance();
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$optionsLookup = $services->getUserOptionsLookup();
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if ( $feature ) {
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if ( static::featureConflictsWithGadget( $user, $feature ) ) {
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return false;
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}
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// Check for a specific feature
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$enabled = $optionsLookup->getOption( $user, 'discussiontools-' . $feature );
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// `null` means there is no user option for this feature, so it must be enabled
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return $enabled === null ? true : $enabled;
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} else {
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// Check for any feature
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foreach ( static::FEATURES as $feat ) {
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if ( $optionsLookup->getOption( $user, 'discussiontools-' . $feat ) ) {
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return true;
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}
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}
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return false;
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}
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}
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/**
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* Work out the A/B test bucket for the current user
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*
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* Currently this just checks whether the user is logged in, and assigns
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* them to a consistent bucket based on their ID.
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*
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* @param UserIdentity $user
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* @param string|null $feature Feature to check for (one of static::FEATURES)
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* Null will check for any DT feature.
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* @return string 'test' if in the test group, 'control' if in the control group, or '' if
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* they're not in the test
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*/
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public static function determineUserABTestBucket( UserIdentity $user, ?string $feature = null ): string {
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$services = MediaWikiServices::getInstance();
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$optionsManager = $services->getUserOptionsManager();
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$dtConfig = $services->getConfigFactory()->makeConfig( 'discussiontools' );
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$abtest = $dtConfig->get( 'DiscussionToolsABTest' );
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if (
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$user->isRegistered() &&
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( $feature ? ( $abtest == $feature ) : (bool)$abtest )
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) {
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return $user->getId() % 2 == 0 ? 'test' : 'control';
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}
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return '';
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}
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/**
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* Check if the tools are available for a given title
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*
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* @param Title $title
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* @param string|null $feature Feature to check for (one of static::FEATURES)
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* Null will check for any DT feature.
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* @return bool
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*/
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public static function isAvailableForTitle( Title $title, ?string $feature = null ): bool {
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// Only wikitext pages (e.g. not Flow boards, special pages)
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if ( $title->getContentModel() !== CONTENT_MODEL_WIKITEXT ) {
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return false;
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}
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if ( !$title->canExist() ) {
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return false;
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}
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$services = MediaWikiServices::getInstance();
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if ( $feature === static::VISUALENHANCEMENTS ) {
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$dtConfig = $services->getConfigFactory()->makeConfig( 'discussiontools' );
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$namespaces = $dtConfig->get( 'DiscussionTools_visualenhancements_namespaces' );
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if ( is_array( $namespaces ) ) {
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// Only allow visual enhancements in specified namespaces
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return in_array( $title->getNamespace(), $namespaces, true );
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}
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}
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$hasNewSectionLink = static::hasPagePropCached( $title, 'newsectionlink' );
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// Check that the page supports discussions.
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// Treat pages with __NEWSECTIONLINK__ as talk pages (T245890)
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return $hasNewSectionLink ||
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// `wantSignatures` includes talk pages
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$services->getNamespaceInfo()->wantSignatures( $title->getNamespace() );
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// TODO: Consider not loading if forceHideNewSectionLink is true.
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}
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/**
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* Check if the tool is available on a given page
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*
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* @param OutputPage $output
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* @param string|null $feature Feature to check for (one of static::FEATURES)
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* Null will check for any DT feature.
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* @return bool
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*/
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public static function isFeatureEnabledForOutput( OutputPage $output, ?string $feature = null ): bool {
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// Only show on normal page views (not history etc.), and in edit mode for previews
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if (
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// Don't try to call $output->getActionName if testing for NEWTOPICTOOL as we use
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// the hook onGetActionName to override the action for the tool on empty pages.
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// If we tried to call it here it would set up infinite recursion (T312689)
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$feature !== static::NEWTOPICTOOL &&
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!in_array( $output->getActionName(), [ 'view', 'edit', 'submit' ] )
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) {
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return false;
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}
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$title = $output->getTitle();
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// Don't show on pages without a Title
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if ( !$title ) {
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return false;
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}
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// Topic subscription is not available on your own talk page, as you will
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// get 'edit-user-talk' notifications already. (T276996)
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if (
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( $feature === static::TOPICSUBSCRIPTION || $feature === static::AUTOTOPICSUB ) &&
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$title->equals( $output->getUser()->getTalkPage() )
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) {
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return false;
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}
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// Subfeatures are disabled if the main feature is disabled
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if ( (
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$feature === static::VISUALENHANCEMENTS_REPLY ||
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$feature === static::VISUALENHANCEMENTS_PAGEFRAME
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) && !self::isFeatureEnabledForOutput( $output, static::VISUALENHANCEMENTS ) ) {
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return false;
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}
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// ?dtenable=1 overrides all user and title checks
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$queryEnable = $output->getRequest()->getRawVal( 'dtenable' ) ?:
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// Extra hack for parses from API, where this parameter isn't passed to derivative requests
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RequestContext::getMain()->getRequest()->getRawVal( 'dtenable' );
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if ( $queryEnable ) {
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return true;
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}
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if ( $queryEnable === '0' ) {
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// ?dtenable=0 forcibly disables the feature regardless of any other checks (T285578)
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return false;
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}
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if ( !static::isAvailableForTitle( $title, $feature ) ) {
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return false;
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}
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$isMobile = false;
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if ( ExtensionRegistry::getInstance()->isLoaded( 'MobileFrontend' ) ) {
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$mobFrontContext = MediaWikiServices::getInstance()->getService( 'MobileFrontend.Context' );
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$isMobile = $mobFrontContext->shouldDisplayMobileView();
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}
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$dtConfig = MediaWikiServices::getInstance()->getConfigFactory()->makeConfig( 'discussiontools' );
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if ( $isMobile ) {
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// Enabling mobile removes MobileFrontend's reply and new topic tools, so always
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// enable these tools as a replacement.
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return $dtConfig->get( 'DiscussionToolsEnableMobile' ) && (
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$feature === null ||
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$feature === static::REPLYTOOL ||
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$feature === static::NEWTOPICTOOL ||
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$feature === static::SOURCEMODETOOLBAR ||
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// Even though mobile ignores user preferences, TOPICSUBSCRIPTION must
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// still be disabled if the user isn't registered.
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( $feature === static::TOPICSUBSCRIPTION && $output->getUser()->isRegistered() ) ||
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// Even though mobile ignores user preferences, VISUALENHANCEMENTS must
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// still be disabled if is unavailable on the wiki.
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(
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(
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$feature === static::VISUALENHANCEMENTS ||
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$feature === static::VISUALENHANCEMENTS_REPLY ||
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$feature === static::VISUALENHANCEMENTS_PAGEFRAME
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) &&
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$dtConfig->get( 'DiscussionTools_' . $feature ) !== 'unavailable'
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)
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);
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}
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return static::isFeatureEnabledForUser( $output->getUser(), $feature );
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}
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/**
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* Check if the "New section" tab would be shown in a normal skin.
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*
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* @param IContextSource $context
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* @return bool
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*/
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public static function shouldShowNewSectionTab( IContextSource $context ): bool {
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$title = $context->getTitle();
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$output = $context->getOutput();
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// Match the logic in MediaWiki core (as defined in SkinTemplate::buildContentNavigationUrlsInternal):
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// https://gerrit.wikimedia.org/r/plugins/gitiles/mediawiki/core/+/add6d0a0e38167a710fb47fac97ff3004451494c/includes/skins/SkinTemplate.php#1317
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// * __NONEWSECTIONLINK__ is not present (OutputPage::forceHideNewSectionLink) and...
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// - This is the current revision of a non-redirect in a talk namespace or...
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// - __NEWSECTIONLINK__ is present (OutputPage::showNewSectionLink)
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return (
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!static::hasPagePropCached( $title, 'nonewsectionlink' ) &&
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( ( $title->isTalkPage() && !$title->isRedirect() && $output->isRevisionCurrent() ) ||
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static::hasPagePropCached( $title, 'newsectionlink' ) )
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);
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}
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/**
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* Check if this page view should open the new topic tool on page load.
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*
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* @param IContextSource $context
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* @return bool
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*/
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public static function shouldOpenNewTopicTool( IContextSource $context ): bool {
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$req = $context->getRequest();
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$out = $context->getOutput();
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return (
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// ?title=...&action=edit§ion=new
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// ?title=...&veaction=editsource§ion=new
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( $req->getRawVal( 'action' ) === 'edit' || $req->getRawVal( 'veaction' ) === 'editsource' ) &&
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$req->getRawVal( 'section' ) === 'new' &&
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// Adding a new topic with preloaded text is not supported yet (T269310)
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!(
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$req->getCheck( 'editintro' ) || $req->getCheck( 'preload' ) ||
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$req->getCheck( 'preloadparams' ) || $req->getCheck( 'preloadtitle' )
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) &&
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// User has new topic tool enabled (and not using &dtenable=0)
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static::isFeatureEnabledForOutput( $out, static::NEWTOPICTOOL )
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);
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}
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/**
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* Check if this page view should display the "empty state" message for empty talk pages.
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*
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* @param IContextSource $context
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* @return bool
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*/
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public static function shouldDisplayEmptyState( IContextSource $context ): bool {
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$req = $context->getRequest();
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$out = $context->getOutput();
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$user = $context->getUser();
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$title = $context->getTitle();
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$optionsLookup = MediaWikiServices::getInstance()->getUserOptionsLookup();
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return (
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(
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// When following a red link from another page (but not when clicking the 'Edit' tab)
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(
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$req->getRawVal( 'action' ) === 'edit' && $req->getRawVal( 'redlink' ) === '1' &&
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// …if not disabled by the user
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$optionsLookup->getOption( $user, 'discussiontools-newtopictool-createpage' )
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) ||
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// When the new topic tool will be opened (usually when clicking the 'Add topic' tab)
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static::shouldOpenNewTopicTool( $context ) ||
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// In read mode (accessible for non-existent pages by clicking 'Cancel' in editor)
|
|
$req->getRawVal( 'action', 'view' ) === 'view'
|
|
) &&
|
|
// Only in talk namespaces, not including other namespaces that isAvailableForTitle() allows
|
|
$title->isTalkPage() &&
|
|
// Only if the subject page or the user exists (T288319, T312560)
|
|
static::pageSubjectExists( $title ) &&
|
|
// The default display will probably be more useful for links to old revisions of deleted
|
|
// pages (existing pages are already excluded in shouldShowNewSectionTab())
|
|
$req->getIntOrNull( 'oldid' ) === null &&
|
|
// Only if "New section" tab would be shown by the skin.
|
|
// If the page doesn't exist, this only happens in talk namespaces.
|
|
// If the page exists, it also considers magic words on the page.
|
|
static::shouldShowNewSectionTab( $context ) &&
|
|
// User has new topic tool enabled (and not using &dtenable=0)
|
|
static::isFeatureEnabledForOutput( $out, static::NEWTOPICTOOL )
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Return whether the corresponding subject page exists, or (if the page is a user talk page,
|
|
* excluding subpages) whether the user is registered or a valid IP address.
|
|
*
|
|
* @param LinkTarget $talkPage
|
|
* @return bool
|
|
*/
|
|
private static function pageSubjectExists( LinkTarget $talkPage ): bool {
|
|
$services = MediaWikiServices::getInstance();
|
|
$namespaceInfo = $services->getNamespaceInfo();
|
|
Assert::precondition( $namespaceInfo->isTalk( $talkPage->getNamespace() ), "Page is a talk page" );
|
|
|
|
if ( $talkPage->getNamespace() === NS_USER_TALK && strpos( $talkPage->getText(), '/' ) === false ) {
|
|
if ( $services->getUserNameUtils()->isIP( $talkPage->getText() ) ) {
|
|
return true;
|
|
}
|
|
$subjectUser = $services->getUserFactory()->newFromName( $talkPage->getText() );
|
|
if ( $subjectUser && $subjectUser->isRegistered() ) {
|
|
return true;
|
|
}
|
|
return false;
|
|
} else {
|
|
$subjectPage = $namespaceInfo->getSubjectPage( $talkPage );
|
|
return $services->getPageStore()->getPageForLink( $subjectPage )->exists();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Check if we should be adding automatic topic subscriptions for this user on this page.
|
|
*
|
|
* @param UserIdentity $user
|
|
* @param Title $title
|
|
* @return bool
|
|
*/
|
|
public static function shouldAddAutoSubscription( UserIdentity $user, Title $title ): bool {
|
|
// This duplicates the logic from isFeatureEnabledForOutput(),
|
|
// because we don't have access to the request or the output here.
|
|
|
|
// Topic subscription is not available on your own talk page, as you will
|
|
// get 'edit-user-talk' notifications already. (T276996)
|
|
// (can't use User::getTalkPage() to check because this is a UserIdentity)
|
|
if ( $title->inNamespace( NS_USER_TALK ) && $title->getText() === $user->getName() ) {
|
|
return false;
|
|
}
|
|
|
|
// Users flagged as bots shouldn't be autosubscribed. They can
|
|
// manually subscribe if it becomes relevant. (T301933)
|
|
$user = MediaWikiServices::getInstance()
|
|
->getUserFactory()
|
|
->newFromUserIdentity( $user );
|
|
if ( $user->isBot() ) {
|
|
return false;
|
|
}
|
|
|
|
// Check if the user has automatic subscriptions enabled, and the tools are enabled on the page.
|
|
return static::isAvailableForTitle( $title ) &&
|
|
static::isFeatureEnabledForUser( $user, static::AUTOTOPICSUB );
|
|
}
|
|
}
|