home/omtekel/wiki/extensions/AbuseFilter/includes/Hooks/Handlers/FilteredActionsHandler.php000066600000025622151335141050026233 0ustar00statsDataFactory = $statsDataFactory; $this->filterRunnerFactory = $filterRunnerFactory; $this->variableGeneratorFactory = $variableGeneratorFactory; $this->editRevUpdater = $editRevUpdater; $this->blockedDomainFilter = $blockedDomainFilter; $this->permissionManager = $permissionManager; } /** * @inheritDoc * @param string $slot Slot role for the content, added by Wikibase (T288885) */ public function onEditFilterMergedContent( IContextSource $context, Content $content, Status $status, $summary, User $user, $minoredit, string $slot = SlotRecord::MAIN ) { $startTime = microtime( true ); if ( !$status->isOK() ) { // Investigate what happens if we skip filtering here (T211680) LoggerFactory::getInstance( 'AbuseFilter' )->info( 'Status is already not OK', [ 'status' => (string)$status ] ); } $filterResult = $this->filterEdit( $context, $user, $content, $summary, $slot ); if ( !$filterResult->isOK() ) { // Produce a useful error message for API edits $filterResultApi = self::getApiStatus( $filterResult ); $status->merge( $filterResultApi ); } $this->statsDataFactory->timing( 'timing.editAbuseFilter', microtime( true ) - $startTime ); return $status->isOK(); } /** * Implementation for EditFilterMergedContent hook. * * @param IContextSource $context the context of the edit * @param User $user * @param Content $content the new Content generated by the edit * @param string $summary Edit summary for page * @param string $slot slot role for the content * @return Status */ private function filterEdit( IContextSource $context, User $user, Content $content, string $summary, string $slot = SlotRecord::MAIN ): Status { $this->editRevUpdater->clearLastEditPage(); $title = $context->getTitle(); $logger = LoggerFactory::getInstance( 'AbuseFilter' ); if ( $title === null ) { // T144265: This *should* never happen. $logger->warning( __METHOD__ . ' received a null title.' ); return Status::newGood(); } if ( !$title->canExist() ) { // This also should be handled in EditPage or whoever is calling the hook. $logger->warning( __METHOD__ . ' received a Title that cannot exist.' ); // Note that if the title cannot exist, there's no much point in filtering the edit anyway return Status::newGood(); } $page = $context->getWikiPage(); $builder = $this->variableGeneratorFactory->newRunGenerator( $user, $title ); $vars = $builder->getEditVars( $content, $summary, $slot, $page ); if ( $vars === null ) { // We don't have to filter the edit return Status::newGood(); } $runner = $this->filterRunnerFactory->newRunner( $user, $title, $vars, 'default' ); $filterResult = $runner->run(); if ( !$filterResult->isOK() ) { return $filterResult; } $this->editRevUpdater->setLastEditPage( $page ); if ( $this->permissionManager->userHasRight( $user, 'abusefilter-bypass-blocked-external-domains' ) ) { return Status::newGood(); } $blockedDomainFilterResult = $this->blockedDomainFilter->filter( $vars, $user, $title ); if ( $blockedDomainFilterResult instanceof Status ) { return $blockedDomainFilterResult; } return Status::newGood(); } /** * @param Status $status Error message details * @return Status Status containing the same error messages with extra data for the API */ private static function getApiStatus( Status $status ): Status { $allActionsTaken = $status->getValue(); $statusForApi = Status::newGood(); foreach ( $status->getErrors() as $error ) { [ $filterDescription, $filter ] = $error['params']; $actionsTaken = $allActionsTaken[ $filter ]; $code = ( $actionsTaken === [ 'warn' ] ) ? 'abusefilter-warning' : 'abusefilter-disallowed'; $data = [ 'abusefilter' => [ 'id' => $filter, 'description' => $filterDescription, 'actions' => $actionsTaken, ], ]; $message = ApiMessage::create( $error, $code, $data ); $statusForApi->fatal( $message ); } return $statusForApi; } /** * @inheritDoc */ public function onTitleMove( Title $old, Title $nt, User $user, $reason, Status &$status ) { $builder = $this->variableGeneratorFactory->newRunGenerator( $user, $old ); $vars = $builder->getMoveVars( $nt, $reason ); $runner = $this->filterRunnerFactory->newRunner( $user, $old, $vars, 'default' ); $result = $runner->run(); $status->merge( $result ); } /** * @inheritDoc */ public function onArticleDelete( WikiPage $wikiPage, User $user, &$reason, &$error, Status &$status, $suppress ) { if ( $suppress ) { // Don't filter suppressions, T71617 return true; } $builder = $this->variableGeneratorFactory->newRunGenerator( $user, $wikiPage->getTitle() ); $vars = $builder->getDeleteVars( $reason ); $runner = $this->filterRunnerFactory->newRunner( $user, $wikiPage->getTitle(), $vars, 'default' ); $filterResult = $runner->run(); $status->merge( $filterResult ); $error = $filterResult->isOK() ? '' : $filterResult->getHTML(); return $filterResult->isOK(); } /** * @inheritDoc */ public function onUploadVerifyUpload( UploadBase $upload, User $user, ?array $props, $comment, $pageText, &$error ) { return $this->filterUpload( 'upload', $upload, $user, $props, $comment, $pageText, $error ); } /** * Filter an upload to stash. If a filter doesn't need to check the page contents or * upload comment, it can use `action='stashupload'` to provide better experience to e.g. * UploadWizard (rejecting files immediately, rather than after the user adds the details). * * @inheritDoc */ public function onUploadStashFile( UploadBase $upload, User $user, ?array $props, &$error ) { return $this->filterUpload( 'stashupload', $upload, $user, $props, null, null, $error ); } /** * Implementation for UploadStashFile and UploadVerifyUpload hooks. * * @param string $action 'upload' or 'stashupload' * @param UploadBase $upload * @param User $user User performing the action * @param array|null $props File properties, as returned by MWFileProps::getPropsFromPath(). * @param string|null $summary Upload log comment (also used as edit summary) * @param string|null $text File description page text (only used for new uploads) * @param array|ApiMessage &$error * @return bool */ private function filterUpload( string $action, UploadBase $upload, User $user, ?array $props, ?string $summary, ?string $text, &$error ): bool { $title = $upload->getTitle(); if ( $title === null ) { // T144265: This could happen for 'stashupload' if the specified title is invalid. // Let UploadBase warn the user about that, and we'll filter later. $logger = LoggerFactory::getInstance( 'AbuseFilter' ); $logger->warning( __METHOD__ . " received a null title. Action: $action." ); return true; } $builder = $this->variableGeneratorFactory->newRunGenerator( $user, $title ); $vars = $builder->getUploadVars( $action, $upload, $summary, $text, $props ); if ( $vars === null ) { return true; } $runner = $this->filterRunnerFactory->newRunner( $user, $title, $vars, 'default' ); $filterResult = $runner->run(); if ( !$filterResult->isOK() ) { // Produce a useful error message for API edits $filterResultApi = self::getApiStatus( $filterResult ); // @todo Return all errors instead of only the first one $error = $filterResultApi->getErrors()[0]['message']; } else { if ( $this->permissionManager->userHasRight( $user, 'abusefilter-bypass-blocked-external-domains' ) ) { return true; } $blockedDomainFilterResult = $this->blockedDomainFilter->filter( $vars, $user, $title ); if ( $blockedDomainFilterResult instanceof Status ) { $error = $blockedDomainFilterResult->getErrors()[0]['message']; return $blockedDomainFilterResult->isOK(); } } return $filterResult->isOK(); } /** * @inheritDoc */ public function onParserOutputStashForEdit( $page, $content, $output, $summary, $user ) { // XXX: This makes the assumption that this method is only ever called for the main slot. // Which right now holds true, but any more fancy MCR stuff will likely break here... $slot = SlotRecord::MAIN; // Cache any resulting filter matches. // Do this outside the synchronous stash lock to avoid any chance of slowdown. DeferredUpdates::addCallableUpdate( function () use ( $user, $page, $summary, $content, $slot ) { $startTime = microtime( true ); $generator = $this->variableGeneratorFactory->newRunGenerator( $user, $page->getTitle() ); $vars = $generator->getStashEditVars( $content, $summary, $slot, $page ); if ( !$vars ) { return; } $runner = $this->filterRunnerFactory->newRunner( $user, $page->getTitle(), $vars, 'default' ); $runner->runForStash(); $totalTime = microtime( true ) - $startTime; $this->statsDataFactory->timing( 'timing.stashAbuseFilter', $totalTime ); }, DeferredUpdates::PRESEND ); } }