mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/DiscussionTools
synced 2024-11-13 18:37:07 +00:00
b6f554a945
Topic subscription test is going to be all logged in users only, no transitory enrollment conditions, so we can remove the anonymous user handling and DB writes. Bug: T302515 Bug: T304030 Change-Id: I5e57bb9b7958576f3a04373748331a86f4626fb5
374 lines
12 KiB
PHP
374 lines
12 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\MediaWikiServices;
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use MediaWiki\User\UserIdentity;
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use OutputPage;
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use RequestContext;
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use Title;
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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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/**
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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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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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];
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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 = $title->getArticleId();
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if ( !isset( self::$propCache[ $id ] ) ) {
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self::$propCache[ $id ] = [];
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}
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if ( !isset( self::$propCache[ $id ][ $prop ] ) ) {
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$services = MediaWikiServices::getInstance();
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$props = $services->getPageProps()->getProperties( $title, $prop );
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self::$propCache[ $id ][ $prop ] = isset( $props[ $id ] );
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}
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return self::$propCache[ $id ][ $prop ];
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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 ( ( $feature === self::TOPICSUBSCRIPTION || $feature === self::AUTOTOPICSUB ) && !$user->isRegistered() ) {
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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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// Check for a specific feature
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return $optionsLookup->getOption( $user, 'discussiontools-' . $feature );
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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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* @return bool
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*/
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public static function isAvailableForTitle( Title $title ): 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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$hasNewSectionLink = self::hasPagePropCached( $title, 'newsectionlink' );
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$services = MediaWikiServices::getInstance();
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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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// Don't show on edit pages, history, etc.
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if ( $feature !== self::NEWTOPICTOOL && $output->getActionName() !== 'view' ) {
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return false;
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}
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$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 === self::TOPICSUBSCRIPTION || $feature === self::AUTOTOPICSUB ) &&
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$title->equals( $output->getUser()->getTalkPage() )
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) {
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return false;
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}
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// New topic tool is not available if __NONEWSECTIONLINK__ is set
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// We may need to move this check to the client when we support
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// launching the tool from other pages.
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if ( $feature === self::NEWTOPICTOOL ) {
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if ( self::hasPagePropCached( $title, 'nonewsectionlink' ) ) {
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return false;
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}
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}
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// ?dtenable=1 overrides all user and title checks
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$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( $title ) ) {
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return false;
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}
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$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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// Topic subscription is not yet available on mobile, awaiting UI implementation.
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return $dtConfig->get( 'DiscussionToolsEnableMobile' ) && (
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$feature === null ||
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$feature === self::REPLYTOOL ||
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$feature === self::NEWTOPICTOOL ||
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$feature === self::SOURCEMODETOOLBAR
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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 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->getVal( 'action' ) === 'edit' || $req->getVal( 'veaction' ) === 'editsource' ) &&
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$req->getVal( '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->getVal( 'editintro' ) || $req->getVal( 'preload' ) ||
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$req->getVal( 'preloadparams' ) || $req->getVal( 'preloadtitle' )
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) &&
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// User has new topic tool enabled (and not using &dtenable=0)
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self::isFeatureEnabledForOutput( $out, self::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 for talk pages that don't exist.
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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 = $context->getOutput();
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$title = $context->getTitle();
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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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( $req->getVal( 'action' ) === 'edit' && $req->getVal( 'redlink' ) === '1' ) ||
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// When the new topic tool will be opened (usually when clicking the 'Add topic' tab)
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self::shouldOpenNewTopicTool( $context ) ||
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// In read mode (accessible for non-existent pages by clicking 'Cancel' in editor)
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$req->getVal( 'action', 'view' ) === 'view'
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) &&
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// Duh
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!$title->exists() &&
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// Only in talk namespaces, not including other namespaces that isAvailableForTitle() allows
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$title->isTalkPage() &&
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// The default display will probably be more useful for...
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// ...Permanent links to revisions of pages which have been deleted
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$req->getIntOrNull( 'oldid' ) === null &&
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// ...Non-existent pages with default content, e.g. in 'MediaWiki:' namespace
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!$title->hasSourceText() &&
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// User has new topic tool enabled (and not using &dtenable=0)
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self::isFeatureEnabledForOutput( $out, self::NEWTOPICTOOL )
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);
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}
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/**
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* Check if we should be adding automatic topic subscriptions for this user on this page.
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*
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* @param UserIdentity $user
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* @param Title $title
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* @return bool
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*/
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public static function shouldAddAutoSubscription( UserIdentity $user, Title $title ): bool {
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// This duplicates the logic from isFeatureEnabledForOutput(),
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// because we don't have access to the request or the output here.
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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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// (can't use User::getTalkPage() to check because this is a UserIdentity)
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if ( $title->inNamespace( NS_USER_TALK ) && $title->getText() === $user->getName() ) {
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return false;
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}
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// Users flagged as bots shouldn't be autosubscribed. They can
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// manually subscribe if it becomes relevant. (T301933)
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$user = MediaWikiServices::getInstance()
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->getUserFactory()
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->newFromUserIdentity( $user );
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if ( $user->isBot() ) {
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return false;
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}
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// Check if the user has automatic subscriptions enabled, and the tools are enabled on the page.
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return static::isAvailableForTitle( $title ) &&
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static::isFeatureEnabledForUser( $user, self::AUTOTOPICSUB );
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}
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}
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