mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/DiscussionTools
synced 2024-12-01 03:26:28 +00:00
893290d4b4
We realized that any change made to Special:Preferences will set the beta preference even if they didn't visit the beta tab, so we can't actually tell if manual intent was involved. As such, we'll enroll people regardless of their beta setting -- they can disable the feature through regular preferences if they want, and that'll be respected. Bug: T291307 Change-Id: I8c1cbf51060012e8e68af252da84944dfcc681d8
380 lines
13 KiB
PHP
380 lines
13 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 Action;
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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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* Checks whether the user has been enrolled in the last A/B test, if any was enabled.
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*
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* If the A/B test is enabled, and the user is eligible and not enrolled, it will enroll them.
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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 they've
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* never been in the test
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*/
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private 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 = $dtConfig->get( 'DiscussionToolsABTest' );
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$abstate = $optionsManager->getOption( $user, 'discussiontools-abtest2' );
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if (
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$user->isRegistered() &&
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$feature && $abtest == $feature
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) {
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// The A/B test is enabled, and the user is qualified to be in the
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// test by being logged in.
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if ( !$abstate && !$optionsManager->getOption( $user, 'discussiontools-newtopictool-opened' ) ) {
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// Assign the user to a group. This is only being done to
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// users who have never used the tool before, for which we're
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// using the absence of discussiontools-newtopictool-opened.
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$abstate = $user->getId() % 2 == 0 ? 'test' : 'control';
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$optionsManager->setOption( $user, 'discussiontools-abtest2', $abstate );
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$optionsManager->saveOptions( $user );
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}
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return $abstate;
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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 && Action::getActionName( $output->getContext() ) !== 'view' ) {
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return false;
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}
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$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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$isMobile = false;
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if ( ExtensionRegistry::getInstance()->isLoaded( 'MobileFrontend' ) ) {
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$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 ( $isMobile && (
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!$dtConfig->get( 'DiscussionToolsEnableMobile' ) ||
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// Still disable some features for now
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$feature === self::TOPICSUBSCRIPTION
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) ) {
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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 (
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( $feature === self::TOPICSUBSCRIPTION || $feature === self::AUTOTOPICSUB ) &&
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!$dtConfig->get( 'DiscussionToolsEnableTopicSubscriptionBackend' )
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) {
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// Can't be enabled via query, because the tables may not exist yet (T280082)
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$queryEnable = false;
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}
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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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return static::isAvailableForTitle( $title ) &&
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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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// 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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