HookHandler.php

<?php
declare( strict_types=1 );
 
namespace MediaWiki\Extension\Translate;
 
use AggregateMessageGroup;
use ALItem;
use ALTree;
use MediaWiki\Api\ApiRawMessage;
use MediaWiki\ChangeTags\Hook\ChangeTagsListActiveHook;
use MediaWiki\ChangeTags\Hook\ListDefinedTagsHook;
use MediaWiki\Config\Config;
use MediaWiki\Config\ConfigException;
use MediaWiki\Config\ServiceOptions;
use MediaWiki\Content\Content;
use MediaWiki\Content\TextContent;
use MediaWiki\Context\IContextSource;
use MediaWiki\Extension\AbuseFilter\Variables\VariableHolder;
use MediaWiki\Extension\Translate\LogFormatter as TranslateLogFormatter;
use MediaWiki\Extension\Translate\MessageBundleTranslation\ScribuntoHookHandler;
use MediaWiki\Extension\Translate\MessageGroupProcessing\DeleteTranslatableBundleJob;
use MediaWiki\Extension\Translate\MessageGroupProcessing\MessageGroupSubscriptionHookHandler;
use MediaWiki\Extension\Translate\MessageGroupProcessing\MessageGroupSubscriptionNotificationJob;
use MediaWiki\Extension\Translate\MessageGroupProcessing\MoveTranslatableBundleJob;
use MediaWiki\Extension\Translate\MessageGroupProcessing\RevTagStore;
use MediaWiki\Extension\Translate\MessageGroupProcessing\TranslatableBundleLogFormatter;
use MediaWiki\Extension\Translate\MessageLoading\FatMessage;
use MediaWiki\Extension\Translate\MessageLoading\MessageHandle;
use MediaWiki\Extension\Translate\PageTranslation\DeleteTranslatableBundleSpecialPage;
use MediaWiki\Extension\Translate\PageTranslation\Hooks;
use MediaWiki\Extension\Translate\PageTranslation\MarkForTranslationActionApi;
use MediaWiki\Extension\Translate\PageTranslation\MigrateTranslatablePageSpecialPage;
use MediaWiki\Extension\Translate\PageTranslation\PageTranslationSpecialPage;
use MediaWiki\Extension\Translate\PageTranslation\PrepareTranslatablePageSpecialPage;
use MediaWiki\Extension\Translate\PageTranslation\RenderTranslationPageJob;
use MediaWiki\Extension\Translate\PageTranslation\UpdateTranslatablePageJob;
use MediaWiki\Extension\Translate\SystemUsers\FuzzyBot;
use MediaWiki\Extension\Translate\SystemUsers\TranslateUserManager;
use MediaWiki\Extension\Translate\TranslatorInterface\TranslateEditAddons;
use MediaWiki\Extension\Translate\TranslatorSandbox\ManageTranslatorSandboxSpecialPage;
use MediaWiki\Extension\Translate\TranslatorSandbox\TranslateSandboxEmailJob;
use MediaWiki\Extension\Translate\TranslatorSandbox\TranslationStashActionApi;
use MediaWiki\Extension\Translate\TranslatorSandbox\TranslationStashSpecialPage;
use MediaWiki\Extension\Translate\TranslatorSandbox\TranslatorSandboxActionApi;
use MediaWiki\Extension\Translate\TtmServer\SearchableTtmServer;
use MediaWiki\Extension\Translate\Utilities\Utilities;
use MediaWiki\Html\Html;
use MediaWiki\Language\Language;
use MediaWiki\Language\LanguageNameUtils;
use MediaWiki\Logging\LogFormatter;
use MediaWiki\MediaWikiServices;
use MediaWiki\Output\OutputPage;
use MediaWiki\Parser\Hook\ParserFirstCallInitHook;
use MediaWiki\Parser\Parser;
use MediaWiki\Parser\ParserOutput;
use MediaWiki\Registration\ExtensionRegistry;
use MediaWiki\ResourceLoader\Context;
use MediaWiki\ResourceLoader\Hook\ResourceLoaderRegisterModulesHook;
use MediaWiki\ResourceLoader\ResourceLoader;
use MediaWiki\Revision\Hook\RevisionRecordInsertedHook;
use MediaWiki\Revision\RevisionLookup;
use MediaWiki\Search\SearchEngine;
use MediaWiki\Settings\SettingsBuilder;
use MediaWiki\SpecialPage\SpecialPage;
use MediaWiki\Specials\SpecialSearch;
use MediaWiki\StubObject\StubUserLang;
use MediaWiki\Title\Title;
use MediaWiki\Title\TitleValue;
use MediaWiki\User\Hook\UserGetReservedNamesHook;
use MediaWiki\User\User;
use MediaWiki\Xml\XmlSelect;
use StatusValue;
use Wikimedia\Rdbms\IConnectionProvider;
 
class HookHandler implements
    ChangeTagsListActiveHook,
    ListDefinedTagsHook,
    ParserFirstCallInitHook,
    RevisionRecordInsertedHook,
    UserGetReservedNamesHook,
    ResourceLoaderRegisterModulesHook
{
    private const USER_MERGE_TABLES = [
        'translate_stash' => 'ts_user',
        'translate_reviews' => 'trr_user',
    ];
 
    public function __construct(
        private readonly RevisionLookup $revisionLookup,
        private readonly IConnectionProvider $dbProvider,
        private readonly Config $config,
        private readonly LanguageNameUtils $languageNameUtils,
    ) {
    }
 
    public static function setupTranslate(): void {
        global $wgTranslateYamlLibrary, $wgLogTypes;
        $hooks = [];
 
        /*
         * Text that will be shown in translations if the translation is outdated.
         * Must be something that does not conflict with actual content.
         */
        if ( !defined( 'TRANSLATE_FUZZY' ) ) {
            define( 'TRANSLATE_FUZZY', '!!FUZZY!!' );
        }
 
        $wgTranslateYamlLibrary ??= function_exists( 'yaml_parse' ) ? 'phpyaml' : 'spyc';
 
        $hooks['PageSaveComplete'][] = [ TranslateEditAddons::class, 'onSaveComplete' ];
 
        // Page translation setup check and init if enabled.
        global $wgEnablePageTranslation;
        if ( $wgEnablePageTranslation ) {
            // Special page and the right to use it
            global $wgSpecialPages, $wgAvailableRights;
            $wgSpecialPages['PageTranslation'] = [
                'class' => PageTranslationSpecialPage::class,
                'services' => [
                    'LanguageFactory',
                    'LinkBatchFactory',
                    'JobQueueGroup',
                    'PermissionManager',
                    'Translate:TranslatablePageMarker',
                    'Translate:TranslatablePageParser',
                    'Translate:MessageGroupMetadata',
                    'Translate:TranslatablePageView',
                    'Translate:TranslatablePageStateStore',
                    'FormatterFactory'
                ]
            ];
            $wgSpecialPages['PageTranslationDeletePage'] = [
                'class' => DeleteTranslatableBundleSpecialPage::class,
                'services' => [
                    'PermissionManager',
                    'Translate:TranslatableBundleDeleter',
                    'Translate:TranslatableBundleFactory',
                ]
            ];
 
            // right-pagetranslation action-pagetranslation
            $wgAvailableRights[] = 'pagetranslation';
 
            $wgSpecialPages['PageMigration'] = MigrateTranslatablePageSpecialPage::class;
            $wgSpecialPages['PagePreparation'] = PrepareTranslatablePageSpecialPage::class;
 
            global $wgActionFilteredLogs, $wgLogActionsHandlers;
 
            // log-description-pagetranslation log-name-pagetranslation logentry-pagetranslation-mark
            // logentry-pagetranslation-unmark logentry-pagetranslation-moveok
            // logentry-pagetranslation-movenok logentry-pagetranslation-deletefok
            // logentry-pagetranslation-deletefnok logentry-pagetranslation-deletelok
            // logentry-pagetranslation-deletelnok logentry-pagetranslation-encourage
            // logentry-pagetranslation-discourage logentry-pagetranslation-prioritylanguages
            // logentry-pagetranslation-associate logentry-pagetranslation-dissociate
            if ( !in_array( 'pagetranslation', $wgLogTypes ) ) {
                $wgLogTypes[] = 'pagetranslation';
            }
            $wgLogActionsHandlers['pagetranslation/mark'] = TranslatableBundleLogFormatter::class;
            $wgLogActionsHandlers['pagetranslation/unmark'] = TranslatableBundleLogFormatter::class;
            $wgLogActionsHandlers['pagetranslation/moveok'] = TranslatableBundleLogFormatter::class;
            $wgLogActionsHandlers['pagetranslation/movenok'] = TranslatableBundleLogFormatter::class;
            $wgLogActionsHandlers['pagetranslation/deletelok'] = TranslatableBundleLogFormatter::class;
            $wgLogActionsHandlers['pagetranslation/deletefok'] = TranslatableBundleLogFormatter::class;
            $wgLogActionsHandlers['pagetranslation/deletelnok'] = TranslatableBundleLogFormatter::class;
            $wgLogActionsHandlers['pagetranslation/deletefnok'] = TranslatableBundleLogFormatter::class;
            $wgLogActionsHandlers['pagetranslation/encourage'] = TranslatableBundleLogFormatter::class;
            $wgLogActionsHandlers['pagetranslation/discourage'] = TranslatableBundleLogFormatter::class;
            $wgLogActionsHandlers['pagetranslation/prioritylanguages'] = TranslatableBundleLogFormatter::class;
            $wgLogActionsHandlers['pagetranslation/associate'] = TranslatableBundleLogFormatter::class;
            $wgLogActionsHandlers['pagetranslation/dissociate'] = TranslatableBundleLogFormatter::class;
            $wgActionFilteredLogs['pagetranslation'] = [
                'mark' => [ 'mark' ],
                'unmark' => [ 'unmark' ],
                'move' => [ 'moveok', 'movenok' ],
                'delete' => [ 'deletefok', 'deletefnok', 'deletelok', 'deletelnok' ],
                'encourage' => [ 'encourage' ],
                'discourage' => [ 'discourage' ],
                'prioritylanguages' => [ 'prioritylanguages' ],
                'aggregategroups' => [ 'associate', 'dissociate' ],
            ];
 
            if ( !in_array( 'messagebundle', $wgLogTypes ) ) {
                $wgLogTypes[] = 'messagebundle';
            }
            $wgLogActionsHandlers['messagebundle/moveok'] = TranslatableBundleLogFormatter::class;
            $wgLogActionsHandlers['messagebundle/movenok'] = TranslatableBundleLogFormatter::class;
            $wgLogActionsHandlers['messagebundle/deletefok'] = TranslatableBundleLogFormatter::class;
            $wgLogActionsHandlers['messagebundle/deletefnok'] = TranslatableBundleLogFormatter::class;
            $wgActionFilteredLogs['messagebundle'] = [
                'move' => [ 'moveok', 'movenok' ],
                'delete' => [ 'deletefok', 'deletefnok' ],
            ];
 
            $wgLogActionsHandlers['import/translatable-bundle'] = TranslatableBundleLogFormatter::class;
 
            global $wgJobClasses;
            $wgJobClasses['RenderTranslationPageJob'] = RenderTranslationPageJob::class;
            $wgJobClasses['NonPrioritizedRenderTranslationPageJob'] = RenderTranslationPageJob::class;
            $wgJobClasses['MoveTranslatableBundleJob'] = MoveTranslatableBundleJob::class;
            $wgJobClasses['DeleteTranslatableBundleJob'] = DeleteTranslatableBundleJob::class;
            $wgJobClasses['UpdateTranslatablePageJob'] = UpdateTranslatablePageJob::class;
 
            // API modules
            global $wgAPIModules;
            $wgAPIModules['markfortranslation'] = [
                'class' => MarkForTranslationActionApi::class,
                'services' => [
                    'Translate:TranslatablePageMarker',
                    'Translate:MessageGroupMetadata',
                ]
            ];
 
            // Namespaces
            global $wgNamespacesWithSubpages, $wgNamespaceProtection;
            global $wgTranslateMessageNamespaces;
 
            $wgNamespacesWithSubpages[NS_TRANSLATIONS] = true;
            $wgNamespacesWithSubpages[NS_TRANSLATIONS_TALK] = true;
 
            // Standard protection and register it for filtering
            $wgNamespaceProtection[NS_TRANSLATIONS] = [ 'translate' ];
            $wgTranslateMessageNamespaces[] = NS_TRANSLATIONS;
 
 
            $hooks['BeforePageDisplay'][] = [ Hooks::class, 'onBeforePageDisplay' ];
 
            // Disable VE
            $hooks['VisualEditorBeforeEditor'][] = [ Hooks::class, 'onVisualEditorBeforeEditor' ];
 
            // Check syntax for <translate>
            $hooks['MultiContentSave'][] = [ Hooks::class, 'tpSyntaxCheck' ];
            $hooks['EditFilterMergedContent'][] =
                [ Hooks::class, 'tpSyntaxCheckForEditContent' ];
 
            // Add transtag to page props for discovery
            $hooks['PageSaveComplete'][] = [ Hooks::class, 'addTranstagAfterSave' ];
 
            $hooks['RevisionRecordInserted'][] = [ Hooks::class, 'updateTranstagOnNullRevisions' ];
 
            // Register different ways to show language links
            $hooks['ParserFirstCallInit'][] = [ self::class, 'setupParserHooks' ];
            $hooks['LanguageLinks'][] = [ Hooks::class, 'addLanguageLinks' ];
            $hooks['SkinTemplateGetLanguageLink'][] = [ Hooks::class, 'formatLanguageLink' ];
 
            // Allow templates to query whether they are transcluded in a translatable/translated page
            $hooks['GetMagicVariableIDs'][] = [ Hooks::class, 'onGetMagicVariableIDs' ];
            $hooks['ParserGetVariableValueSwitch'][] = [ Hooks::class, 'onParserGetVariableValueSwitch' ];
 
            // Strip <translate> tags etc. from source pages when rendering
            $hooks['ParserBeforeInternalParse'][] = [ Hooks::class, 'renderTagPage' ];
            // Strip <translate> tags etc. from source pages when preprocessing
            $hooks['ParserBeforePreprocess'][] = [ Hooks::class, 'preprocessTagPage' ];
 
            $hooks['BeforeParserFetchTemplateRevisionRecord'][] =
                [ Hooks::class, 'fetchTranslatableTemplateAndTitle' ];
 
            // Set the page content language
            $hooks['PageContentLanguage'][] = [ Hooks::class, 'onPageContentLanguage' ];
 
            // Prevent editing of certain pages in translations namespace
            $hooks['getUserPermissionsErrorsExpensive'][] =
                [ Hooks::class, 'onGetUserPermissionsErrorsExpensive' ];
            // Prevent editing of translation pages directly
            $hooks['getUserPermissionsErrorsExpensive'][] =
                [ Hooks::class, 'preventDirectEditing' ];
            // Prevent moving of translatable pages directly
            $hooks['MovePageIsValidMove'][] = [ Hooks::class, 'preventMoves' ];
 
            // Our custom header for translation pages
            $hooks['ArticleViewHeader'][] = [ Hooks::class, 'translatablePageHeader' ];
 
            // Edit notice shown on translatable pages
            $hooks['TitleGetEditNotices'][] = [ Hooks::class, 'onTitleGetEditNotices' ];
 
            // Custom move page that can move all the associated pages too
            $hooks['SpecialPage_initList'][] = [ Hooks::class, 'replaceMovePage' ];
            // Locking during page moves
            $hooks['getUserPermissionsErrorsExpensive'][] =
                [ Hooks::class, 'lockedPagesCheck' ];
            // Disable action=delete
            $hooks['ArticleConfirmDelete'][] = [ Hooks::class, 'disableDelete' ];
 
            // Replace subpage logic behavior
            $hooks['SkinSubPageSubtitle'][] = [ Hooks::class, 'replaceSubtitle' ];
 
            // Replace edit tab with translation tab for translation pages, and add
            // "mark for translation" tab/link on source translatable pages
            $hooks['SkinTemplateNavigation::Universal'][] = [ Hooks::class, 'onSkinTemplateNavigation__Universal' ];
 
            // Update translated page when translation unit is moved
            $hooks['PageMoveComplete'][] = [ Hooks::class, 'onMovePageTranslationUnits' ];
 
            // Update translated page when translation unit is deleted
            $hooks['ArticleDeleteComplete'][] = [ Hooks::class, 'onDeleteTranslationUnit' ];
 
            // Prevent editing of translation pages.
            $hooks['ReplaceTextFilterPageTitlesForEdit'][] = [ Hooks::class, 'onReplaceTextFilterPageTitlesForEdit' ];
            // Prevent renaming of translatable pages and their translation and translation units
            $hooks['ReplaceTextFilterPageTitlesForRename'][] =
                [ Hooks::class, 'onReplaceTextFilterPageTitlesForRename' ];
 
            // Auto-create translated categories when not empty
            $hooks['LinksUpdateComplete'][] = [ Hooks::class, 'onLinksUpdateComplete' ];
        }
 
        global $wgTranslateUseSandbox;
        if ( $wgTranslateUseSandbox ) {
            global $wgSpecialPages, $wgAvailableRights, $wgDefaultUserOptions;
 
            $wgSpecialPages['ManageTranslatorSandbox'] = [
                'class' => ManageTranslatorSandboxSpecialPage::class,
                'services' => [
                    'Translate:TranslationStashReader',
                    'UserOptionsLookup',
                    'Translate:TranslateSandbox',
                ],
                'args' => [
                    static function () {
                        return new ServiceOptions(
                            ManageTranslatorSandboxSpecialPage::CONSTRUCTOR_OPTIONS,
                            MediaWikiServices::getInstance()->getMainConfig()
                        );
                    }
                ]
            ];
            $wgSpecialPages['TranslationStash'] = [
                'class' => TranslationStashSpecialPage::class,
                'services' => [
                    'LanguageNameUtils',
                    'Translate:TranslationStashReader',
                    'UserOptionsLookup',
                    'LanguageFactory',
                ],
                'args' => [
                    static function () {
                        return new ServiceOptions(
                            TranslationStashSpecialPage::CONSTRUCTOR_OPTIONS,
                            MediaWikiServices::getInstance()->getMainConfig()
                        );
                    }
                ]
            ];
            $wgDefaultUserOptions['translate-sandbox'] = '';
            // right-translate-sandboxmanage action-translate-sandboxmanage
            $wgAvailableRights[] = 'translate-sandboxmanage';
 
            global $wgLogTypes, $wgLogActionsHandlers;
            // log-name-translatorsandbox log-description-translatorsandbox
            if ( !in_array( 'translatorsandbox', $wgLogTypes ) ) {
                $wgLogTypes[] = 'translatorsandbox';
            }
            // logentry-translatorsandbox-promoted logentry-translatorsandbox-rejected
            $wgLogActionsHandlers['translatorsandbox/promoted'] = TranslateLogFormatter::class;
            $wgLogActionsHandlers['translatorsandbox/rejected'] = TranslateLogFormatter::class;
 
            // This is no longer used for new entries since 2016.07.
            // logentry-newusers-tsbpromoted
            $wgLogActionsHandlers['newusers/tsbpromoted'] = LogFormatter::class;
 
            $wgJobClasses['TranslateSandboxEmailJob'] = TranslateSandboxEmailJob::class;
 
            global $wgAPIModules;
            $wgAPIModules['translationstash'] = [
                'class' => TranslationStashActionApi::class,
                'services' => [
                    'DBLoadBalancerFactory',
                    'UserFactory',
                    'Translate:MessageIndex'
                ]
            ];
            $wgAPIModules['translatesandbox'] = [
                'class' => TranslatorSandboxActionApi::class,
                'services' => [
                    'UserFactory',
                    'UserNameUtils',
                    'UserOptionsManager',
                    'WikiPageFactory',
                    'UserOptionsLookup',
                    'Translate:TranslateSandbox',
                ],
                'args' => [
                    static function () {
                        return new ServiceOptions(
                            TranslatorSandboxActionApi::CONSTRUCTOR_OPTIONS,
                            MediaWikiServices::getInstance()->getMainConfig()
                        );
                    }
                ]
            ];
        }
 
        global $wgNamespaceRobotPolicies;
        $wgNamespaceRobotPolicies[NS_TRANSLATIONS] = 'noindex';
 
        // If no service has been configured, we use a built-in fallback.
        global $wgTranslateTranslationDefaultService,
               $wgTranslateTranslationServices;
        if ( $wgTranslateTranslationDefaultService === true ) {
            $wgTranslateTranslationDefaultService = 'TTMServer';
            if ( !isset( $wgTranslateTranslationServices['TTMServer'] ) ) {
                $wgTranslateTranslationServices['TTMServer'] = [
                    'database' => false,
                    'cutoff' => 0.75,
                    'type' => 'ttmserver',
                    'public' => false,
                ];
            }
        }
 
        global $wgTranslateEnableMessageGroupSubscription;
        if ( $wgTranslateEnableMessageGroupSubscription ) {
            if ( !ExtensionRegistry::getInstance()->isLoaded( 'Echo' ) ) {
                throw new ConfigException(
                    'Translate: Message group subscriptions (TranslateEnableMessageGroupSubscription) are ' .
                    'enabled but Echo extension is not installed'
                );
            }
            MessageGroupSubscriptionHookHandler::registerHooks( $hooks );
            $wgJobClasses['MessageGroupSubscriptionNotificationJob'] = MessageGroupSubscriptionNotificationJob::class;
        }
 
        global $wgTranslateEnableEventLogging;
        if ( $wgTranslateEnableEventLogging ) {
            if ( !ExtensionRegistry::getInstance()->isLoaded( 'EventLogging' ) ) {
                throw new ConfigException(
                    'Translate: Event logging (TranslateEnableEventLogging) is ' .
                    'enabled but EventLogging extension is not installed'
                );
            }
        }
 
        global $wgTranslateEnableLuaIntegration;
        if ( $wgTranslateEnableLuaIntegration ) {
            if ( ExtensionRegistry::getInstance()->isLoaded( 'Scribunto' ) ) {
                $hooks[ 'ScribuntoExternalLibraries' ][] = static function ( string $engine, array &$extraLibraries ) {
                    $scribuntoHookHandler = new ScribuntoHookHandler();
                    $scribuntoHookHandler->onScribuntoExternalLibraries( $engine, $extraLibraries );
                };
            } else {
                wfLogWarning(
                    'Translate: Lua integration (TranslateEnableLuaIntegration) is ' .
                    'enabled but Scribunto extension is not installed'
                );
            }
        }
 
        static::registerHookHandlers( $hooks );
    }
 
    private static function registerHookHandlers( array $hooks ): void {
        if ( defined( 'MW_PHPUNIT_TEST' ) && MediaWikiServices::hasInstance() ) {
            // When called from a test case's setUp() method,
            // we can use HookContainer, but we cannot use SettingsBuilder.
            $hookContainer = MediaWikiServices::getInstance()->getHookContainer();
            foreach ( $hooks as $name => $handlers ) {
                foreach ( $handlers as $h ) {
                    $hookContainer->register( $name, $h );
                }
            }
        } else {
            $settingsBuilder = SettingsBuilder::getInstance();
            $settingsBuilder->registerHookHandlers( $hooks );
        }
    }
 
    public function onUserGetReservedNames( &$reservedUsernames ): void {
        $reservedUsernames[] = FuzzyBot::getName();
        $reservedUsernames[] = TranslateUserManager::getName();
    }
 
    public static function onAbuseFilterAlterVariables(
        VariableHolder &$vars, Title $title, User $user
    ): void {
        $handle = new MessageHandle( $title );
 
        // Only set this variable if we are in a proper namespace to avoid
        // unnecessary overhead in non-translation pages
        if ( $handle->isMessageNamespace() ) {
            $vars->setLazyLoadVar(
                'translate_source_text',
                'translate-get-source',
                [ 'handle' => $handle ]
            );
            $vars->setLazyLoadVar(
                'translate_target_language',
                'translate-get-target-language',
                [ 'handle' => $handle ]
            );
        }
    }
 
    public static function onAbuseFilterComputeVariable(
        string $method,
        VariableHolder $vars,
        array $parameters,
        ?string &$result
    ): bool {
        if ( $method !== 'translate-get-source' && $method !== 'translate-get-target-language' ) {
            return true;
        }
 
        $handle = $parameters['handle'];
        $value = '';
        if ( $handle->isValid() ) {
            if ( $method === 'translate-get-source' ) {
                $group = $handle->getGroup();
                $value = $group->getMessage( $handle->getKey(), $group->getSourceLanguage() );
            } else {
                $value = $handle->getCode();
            }
        }
 
        $result = $value;
 
        return false;
    }
 
    public static function onAbuseFilterBuilder( array &$builderValues ): void {
        // The following messages are generated here:
        // * abusefilter-edit-builder-vars-translate-source-text
        // * abusefilter-edit-builder-vars-translate-target-language
        $builderValues['vars']['translate_source_text'] = 'translate-source-text';
        $builderValues['vars']['translate_target_language'] = 'translate-target-language';
    }
 
    public static function setupParserHooks( Parser $parser ): void {
        // For nice language list in-page
        $parser->setHook( 'languages', [ Hooks::class, 'languages' ] );
    }
 
    public static function onPageContentLanguage( Title $title, &$pageLang ): void {
        $handle = new MessageHandle( $title );
        if ( $handle->isMessageNamespace() ) {
            $pageLang = $handle->getEffectiveLanguage();
        }
    }
 
    public static function translateMessageDocumentationLanguage( array &$names, ?string $code ): void {
        global $wgTranslateDocumentationLanguageCode;
        if ( $wgTranslateDocumentationLanguageCode ) {
            // Special case the autonyms
            if (
                $wgTranslateDocumentationLanguageCode === $code ||
                $code === null
            ) {
                $code = 'en';
            }
 
            $names[$wgTranslateDocumentationLanguageCode] =
                wfMessage( 'translate-documentation-language' )->inLanguage( $code )->plain();
        }
    }
 
    public static function searchProfile( array &$profiles ): void {
        global $wgTranslateMessageNamespaces;
        $insert = [];
        $insert['translation'] = [
            'message' => 'translate-searchprofile',
            'tooltip' => 'translate-searchprofile-tooltip',
            'namespaces' => $wgTranslateMessageNamespaces,
        ];
 
        // Insert translations before 'all'
        $index = array_search( 'all', array_keys( $profiles ) );
 
        // Or just at the end if all is not found
        if ( $index === false ) {
            wfWarn( '"all" not found in search profiles' );
            $index = count( $profiles );
        }
 
        $profiles = array_merge(
            array_slice( $profiles, 0, $index ),
            $insert,
            array_slice( $profiles, $index )
        );
    }
 
    public static function searchProfileForm(
        SpecialSearch $search,
        string &$form,
        string $profile,
        string $term,
        array $opts
    ): void {
        if ( $profile !== 'translation' ) {
            return;
        }
 
        if ( Services::getInstance()->getTtmServerFactory()->getDefaultForQuerying() instanceof SearchableTtmServer ) {
            $href = SpecialPage::getTitleFor( 'SearchTranslations' )
                ->getFullUrl( [ 'query' => $term ] );
            $form = Html::successBox(
                $search->msg( 'translate-searchprofile-note', $href )->parse(),
                'plainlinks'
            );
            $search->getOutput()->addModuleStyles( 'mediawiki.codex.messagebox.styles' );
            return;
        }
 
        if ( !$search->getSearchEngine()->supports( 'title-suffix-filter' ) ) {
            return;
        }
 
        $hidden = '';
        foreach ( $opts as $key => $value ) {
            $hidden .= Html::hidden( $key, $value );
        }
 
        $context = $search->getContext();
        $code = $context->getLanguage()->getCode();
        $selected = $context->getRequest()->getVal( 'languagefilter' );
 
        $languages = Utilities::getLanguageNames( $code );
        ksort( $languages );
 
        $selector = new XmlSelect( 'languagefilter', 'languagefilter' );
        $selector->setDefault( $selected );
        $selector->addOption( wfMessage( 'translate-search-nofilter' )->text(), '-' );
        foreach ( $languages as $code => $name ) {
            $selector->addOption( "$code - $name", $code );
        }
 
        $selector = $selector->getHTML();
 
        $label = Html::label(
            wfMessage( 'translate-search-languagefilter' )->text(),
            'languagefilter'
        ) . "\u{00A0}";
 
        $form .= Html::rawElement(
            'fieldset',
            [ 'id' => 'mw-searchoptions' ],
            $hidden . $label . $selector
        );
    }
 
    public static function searchProfileSetupEngine(
        SpecialSearch $search,
        string $profile,
        SearchEngine $engine
    ): void {
        if ( $profile !== 'translation' ) {
            return;
        }
 
        $context = $search->getContext();
        $selected = $context->getRequest()->getVal( 'languagefilter' );
        if ( $selected !== '-' && $selected ) {
            $engine->setFeatureData( 'title-suffix-filter', "/$selected" );
            $search->setExtraParam( 'languagefilter', $selected );
        }
    }
 
    public static function preventCategorization( Parser $parser, string &$html ): void {
        if ( $parser->getOptions()->getInterfaceMessage() ) {
            return;
        }
        $pageReference = $parser->getPage();
 
        $linkTarget = TitleValue::newFromPage( $pageReference );
        $handle = new MessageHandle( $linkTarget );
        if ( $handle->isMessageNamespace() && !$handle->isDoc() ) {
            $parserOutput = $parser->getOutput();
            $names = $parserOutput->getCategoryNames();
            $parserCategories = [];
            foreach ( $names as $name ) {
                $parserCategories[$name] = $parserOutput->getCategorySortKey( $name );
            }
            $parserOutput->setExtensionData( 'translate-fake-categories', $parserCategories );
            $parserOutput->setCategories( [] );
        }
    }
 
    public static function showFakeCategories( OutputPage $outputPage, ParserOutput $parserOutput ): void {
        $fakeCategories = $parserOutput->getExtensionData( 'translate-fake-categories' );
        if ( $fakeCategories ) {
            $outputPage->addCategoryLinks( $fakeCategories );
        }
    }
 
    public static function addConfig( array &$vars, OutputPage $out ): void {
        global $wgTranslateDocumentationLanguageCode,
            $wgTranslatePermissionUrl,
            $wgTranslateUseSandbox;
 
        $title = $out->getTitle();
        if ( $title->isSpecial( 'Translate' ) ||
            $title->isSpecial( 'TranslationStash' ) ||
            $title->isSpecial( 'SearchTranslations' )
        ) {
            $user = $out->getUser();
            $vars['TranslateRight'] = $user->isAllowedAll( 'translate', 'edit' );
            $vars['TranslateMessageReviewRight'] = $user->isAllowed( 'translate-messagereview' );
            $vars['DeleteRight'] = $user->isAllowed( 'delete' );
            $vars['TranslateManageRight'] = $user->isAllowed( 'translate-manage' );
            $vars['wgTranslateDocumentationLanguageCode'] = $wgTranslateDocumentationLanguageCode;
            $vars['wgTranslatePermissionUrl'] = $wgTranslatePermissionUrl;
            $vars['wgTranslateUseSandbox'] = $wgTranslateUseSandbox;
        }
    }
 
    public static function onAdminLinks( ALTree $tree ): void {
        global $wgTranslateUseSandbox;
 
        if ( $wgTranslateUseSandbox ) {
            $sectionLabel = wfMessage( 'adminlinks_users' )->text();
            $row = $tree->getSection( $sectionLabel )->getRow( 'main' );
            $row->addItem( ALItem::newFromSpecialPage( 'TranslateSandbox' ) );
        }
    }
 
    public static function onMergeAccountFromTo( User $oldUser, User $newUser ): void {
        $dbw = MediaWikiServices::getInstance()->getDBLoadBalancer()->getMaintenanceConnectionRef( DB_PRIMARY );
 
        // Update the non-duplicate rows, we'll just delete
        // the duplicate ones later
        foreach ( self::USER_MERGE_TABLES as $table => $field ) {
            if ( $dbw->tableExists( $table, __METHOD__ ) ) {
                $dbw->newUpdateQueryBuilder()
                    ->update( $table )
                    ->ignore()
                    ->set( [ $field => $newUser->getId() ] )
                    ->where( [ $field => $oldUser->getId() ] )
                    ->caller( __METHOD__ )
                    ->execute();
            }
        }
    }
 
    public static function onDeleteAccount( User $oldUser ): void {
        $dbw = MediaWikiServices::getInstance()->getDBLoadBalancer()->getMaintenanceConnectionRef( DB_PRIMARY );
 
        // Delete any remaining rows that didn't get merged
        foreach ( self::USER_MERGE_TABLES as $table => $field ) {
            if ( $dbw->tableExists( $table, __METHOD__ ) ) {
                $dbw->newDeleteQueryBuilder()
                    ->deleteFrom( $table )
                    ->where( [ $field => $oldUser->getId() ] )
                    ->caller( __METHOD__ )
                    ->execute();
            }
        }
    }
 
    public static function onTitleIsAlwaysKnown( $target, &$isKnown ): bool {
        if ( !$target->inNamespace( NS_SPECIAL ) ) {
            return true;
        }
 
        [ $name, $subpage ] = MediaWikiServices::getInstance()
            ->getSpecialPageFactory()->resolveAlias( $target->getDBkey() );
        if ( $name !== 'MyLanguage' || $subpage === null || $subpage === '' ) {
            return true;
        }
 
        $realTarget = Title::newFromText( $subpage );
        if ( !$realTarget || !$realTarget->exists() ) {
            $isKnown = false;
 
            return false;
        }
 
        return true;
    }
 
    public function onParserFirstCallInit( $parser ) {
        $parser->setFunctionHook( 'translation', [ $this, 'translateRenderParserFunction' ] );
    }
 
    public function translateRenderParserFunction( Parser $parser ): string {
        if ( $parser->getOptions()->getInterfaceMessage() ) {
            return '';
        }
        $pageReference = $parser->getPage();
        $linkTarget = TitleValue::newFromPage( $pageReference );
        $handle = new MessageHandle( $linkTarget );
        $code = $handle->getCode();
        if ( $this->languageNameUtils->isKnownLanguageTag( $code ) ) {
            return '/' . $code;
        }
        return '';
    }
 
    public static function validateMessage(
        IContextSource $context,
        Content $content,
        StatusValue $status,
        string $summary,
        User $user
    ): bool {
        if ( !$content instanceof TextContent ) {
            // Not interested
            return true;
        }
 
        $text = $content->getText();
        $title = $context->getTitle();
        $handle = new MessageHandle( $title );
 
        if ( !$handle->isValid() ) {
            return true;
        }
 
        // Don't bother validating if FuzzyBot or translation admin are saving.
        if ( $user->isAllowed( 'translate-manage' ) || $user->equals( FuzzyBot::getUser() ) ) {
            return true;
        }
 
        // Check the namespace, and perform validations for all messages excluding documentation.
        if ( $handle->isMessageNamespace() && !$handle->isDoc() ) {
            $group = $handle->getGroup();
 
            if ( method_exists( $group, 'getMessageContent' ) ) {
                // @phan-suppress-next-line PhanUndeclaredMethod
                $definition = $group->getMessageContent( $handle );
            } else {
                $definition = $group->getMessage( $handle->getKey(), $group->getSourceLanguage() );
            }
 
            $message = new FatMessage( $handle->getKey(), $definition );
            $message->setTranslation( $text );
 
            $messageValidator = $group->getValidator();
            if ( !$messageValidator ) {
                return true;
            }
 
            $validationResponse = $messageValidator->validateMessage( $message, $handle->getCode() );
            if ( $validationResponse->hasErrors() ) {
                $errors = $validationResponse->getDescriptiveErrors( $context );
                $formattedErrors = '';
                foreach ( $errors as $error ) {
                    $formattedErrors .= Html::rawElement( 'li', [], $error );
                }
                $formattedErrors = Html::rawElement( 'ul', [], $formattedErrors );
                $status->fatal( new ApiRawMessage(
                    $context->msg( 'translate-syntax-errors' )->rawParams( $formattedErrors )->parse(),
                    'translate-validation-failed',
                    [
                        'validation' => [
                            'errors' => $errors,
                            'warnings' => $validationResponse->getDescriptiveWarnings( $context )
                        ]
                    ]
                ) );
                return false;
            }
        }
 
        return true;
    }
 
    public function onRevisionRecordInserted( $revisionRecord ): void {
        $parentId = $revisionRecord->getParentId();
        if ( $parentId === 0 || $parentId === null ) {
            // No parent, bail out.
            return;
        }
 
        $prevRev = $this->revisionLookup->getRevisionById( $parentId );
        if ( !$prevRev || !$revisionRecord->hasSameContent( $prevRev ) ) {
            // Not a null revision, bail out.
            return;
        }
 
        // List of tags that should be copied over when updating
        // tp:tag and tp:mark handling is in Hooks::updateTranstagOnNullRevisions.
        $tagsToCopy = [ RevTagStore::FUZZY_TAG, RevTagStore::TRANSVER_PROP ];
 
        $db = $this->dbProvider->getPrimaryDatabase();
        $db->insertSelect(
            'revtag',
            'revtag',
            [
                'rt_type' => 'rt_type',
                'rt_page' => 'rt_page',
                'rt_revision' => $revisionRecord->getId(),
                'rt_value' => 'rt_value',
 
            ],
            [
                'rt_type' => $tagsToCopy,
                'rt_revision' => $parentId,
            ],
            __METHOD__
        );
    }
 
    public function onListDefinedTags( &$tags ): void {
        $tags[] = 'translate-translation-pages';
    }
 
    public function onChangeTagsListActive( &$tags ): void {
        if ( $this->config->get( 'EnablePageTranslation' ) ) {
            $tags[] = 'translate-translation-pages';
        }
    }
 
    public static function getLanguageJson( Context $context ): array {
        return [
            'supportedLanguages' => Utilities::getLanguageNames( $context->getLanguage() ),
            'undeterminedLanguageCode' => AggregateMessageGroup::UNDETERMINED_LANGUAGE_CODE
        ];
    }
 
    /* @inheritDoc */
    public function onResourceLoaderRegisterModules( ResourceLoader $resourceLoader ): void {
        $dir = dirname( __DIR__ );
 
        $modules = [];
 
        if ( ExtensionRegistry::getInstance()->isLoaded( 'VisualEditor' ) ) {
            $modules[ 'ext.translate.ve' ] = [
                'localBasePath' => $dir,
                'remoteExtPath' => 'Translate',
                'scripts' => [
                    'resources/src/ve-translate/ve.ce.MWTranslateAnnotationNode.js',
                    'resources/src/ve-translate/ve.dm.MWTranslateAnnotationNode.js',
                    'resources/src/ve-translate/ve.ui.MWTranslateAnnotationContextItem.js',
                ],
                'dependencies' => [
                    'ext.visualEditor.mwcore',
                ],
                'messages' => [
                    'visualeditor-annotations-translate-start',
                    'visualeditor-annotations-translate-end',
                    'visualeditor-annotations-translate-description',
                    'visualeditor-annotations-tvar-start',
                    'visualeditor-annotations-tvar-end',
                    'visualeditor-annotations-tvar-description',
                ],
            ];
        }
 
        if ( $modules ) {
            $resourceLoader->register( $modules );
        }
    }
 
}