mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/AbuseFilter.git
synced 2024-12-04 18:38:25 +00:00
447 lines
12 KiB
PHP
447 lines
12 KiB
PHP
<?php
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namespace MediaWiki\Extension\AbuseFilter\Pager;
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use Linker;
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use LogicException;
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use MediaWiki\Cache\LinkBatchFactory;
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use MediaWiki\Extension\AbuseFilter\AbuseFilterPermissionManager;
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use MediaWiki\Extension\AbuseFilter\AbuseFilterServices;
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use MediaWiki\Extension\AbuseFilter\SpecsFormatter;
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use MediaWiki\Extension\AbuseFilter\View\AbuseFilterViewList;
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use MediaWiki\Linker\LinkRenderer;
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use SpecialPage;
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use stdClass;
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use TablePager;
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use UnexpectedValueException;
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use Wikimedia\Rdbms\FakeResultWrapper;
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use Wikimedia\Rdbms\IResultWrapper;
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/**
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* Class to build paginated filter list
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*/
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class AbuseFilterPager extends TablePager {
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/**
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* The unique sort fields for the sort options for unique paginate
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*/
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private const INDEX_FIELDS = [
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'af_id' => [ 'af_id' ],
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'af_enabled' => [ 'af_enabled', 'af_deleted', 'af_id' ],
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'af_timestamp' => [ 'af_timestamp', 'af_id' ],
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'af_hidden' => [ 'af_hidden', 'af_id' ],
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'af_group' => [ 'af_group', 'af_id' ],
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'af_hit_count' => [ 'af_hit_count', 'af_id' ],
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'af_public_comments' => [ 'af_public_comments', 'af_id' ],
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];
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/** @var ?LinkBatchFactory */
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private $linkBatchFactory;
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/** @var AbuseFilterPermissionManager */
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private $afPermManager;
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/** @var SpecsFormatter */
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protected $specsFormatter;
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/**
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* @var AbuseFilterViewList The associated page
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*/
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private $mPage;
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/**
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* @var array Query WHERE conditions
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*/
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private $conds;
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/**
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* @var string|null The pattern being searched
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*/
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private $searchPattern;
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/**
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* @var string|null The pattern search mode (LIKE, RLIKE or IRLIKE)
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*/
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private $searchMode;
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/**
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* @param AbuseFilterViewList $page
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* @param LinkRenderer $linkRenderer
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* @param ?LinkBatchFactory $linkBatchFactory
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* @param AbuseFilterPermissionManager $afPermManager
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* @param SpecsFormatter $specsFormatter
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* @param array $conds
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* @param ?string $searchPattern Null if no pattern was specified
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* @param ?string $searchMode
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*/
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public function __construct(
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AbuseFilterViewList $page,
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LinkRenderer $linkRenderer,
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?LinkBatchFactory $linkBatchFactory,
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AbuseFilterPermissionManager $afPermManager,
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SpecsFormatter $specsFormatter,
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array $conds,
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?string $searchPattern,
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?string $searchMode
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) {
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// needed by parent's constructor call
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$this->afPermManager = $afPermManager;
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$this->specsFormatter = $specsFormatter;
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parent::__construct( $page->getContext(), $linkRenderer );
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$this->mPage = $page;
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$this->linkBatchFactory = $linkBatchFactory;
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$this->conds = $conds;
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$this->searchPattern = $searchPattern;
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$this->searchMode = $searchMode;
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}
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/**
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* @return array
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*/
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public function getQueryInfo() {
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$actorQuery = AbuseFilterServices::getActorMigration()->getJoin( 'af_user' );
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return [
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'tables' => [ 'abuse_filter' ] + $actorQuery['tables'],
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'fields' => [
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// All columns but af_comments
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'af_id',
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'af_enabled',
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'af_deleted',
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'af_pattern',
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'af_global',
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'af_public_comments',
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'af_hidden',
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'af_hit_count',
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'af_timestamp',
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'af_actions',
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'af_group',
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'af_throttled'
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] + $actorQuery['fields'],
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'conds' => $this->conds,
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'join_conds' => $actorQuery['joins'],
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];
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}
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/**
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* @param IResultWrapper $result
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*/
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protected function preprocessResults( $result ) {
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// LinkBatchFactory only provided and needed for local wiki results
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if ( $this->linkBatchFactory === null || $this->getNumRows() === 0 ) {
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return;
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}
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$lb = $this->linkBatchFactory->newLinkBatch();
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$lb->setCaller( __METHOD__ );
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foreach ( $result as $row ) {
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$lb->add( NS_USER, $row->af_user_text );
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$lb->add( NS_USER_TALK, $row->af_user_text );
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}
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$lb->execute();
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$result->seek( 0 );
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}
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/**
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* @inheritDoc
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* This is the same as the parent implementation if no search pattern was specified.
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* Otherwise, it does a query with no limit and then slices the results à la ContribsPager.
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*/
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public function reallyDoQuery( $offset, $limit, $order ) {
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if ( $this->searchMode === null ) {
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return parent::reallyDoQuery( $offset, $limit, $order );
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}
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list( $tables, $fields, $conds, $fname, $options, $join_conds ) =
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$this->buildQueryInfo( $offset, $limit, $order );
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unset( $options['LIMIT'] );
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$res = $this->mDb->select( $tables, $fields, $conds, $fname, $options, $join_conds );
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$filtered = [];
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foreach ( $res as $row ) {
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if ( $this->matchesPattern( $row->af_pattern ) ) {
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$filtered[$row->af_id] = $row;
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}
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}
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// sort results and enforce limit like ContribsPager
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if ( $order === self::QUERY_ASCENDING ) {
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ksort( $filtered );
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} else {
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krsort( $filtered );
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}
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$filtered = array_slice( $filtered, 0, $limit );
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$filtered = array_values( $filtered );
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return new FakeResultWrapper( $filtered );
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}
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/**
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* Check whether $subject matches the given $pattern.
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*
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* @param string $subject
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* @return bool
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* @throws LogicException
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*/
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private function matchesPattern( $subject ) {
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$pattern = $this->searchPattern;
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switch ( $this->searchMode ) {
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case 'RLIKE':
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return (bool)preg_match( "/$pattern/u", $subject );
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case 'IRLIKE':
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return (bool)preg_match( "/$pattern/ui", $subject );
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case 'LIKE':
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return mb_stripos( $subject, $pattern ) !== false;
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default:
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throw new LogicException( "Unknown search type {$this->searchMode}" );
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}
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}
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/**
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* Note: this method is called by parent::__construct
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* @return array
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* @see Pager::getFieldNames()
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*/
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public function getFieldNames() {
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$headers = [
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'af_id' => 'abusefilter-list-id',
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'af_public_comments' => 'abusefilter-list-public',
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'af_actions' => 'abusefilter-list-consequences',
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'af_enabled' => 'abusefilter-list-status',
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'af_timestamp' => 'abusefilter-list-lastmodified',
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'af_hidden' => 'abusefilter-list-visibility',
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];
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$performer = $this->getAuthority();
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if ( $this->afPermManager->canSeeLogDetails( $performer ) ) {
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$headers['af_hit_count'] = 'abusefilter-list-hitcount';
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}
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if ( $this->afPermManager->canViewPrivateFilters( $performer ) && $this->searchMode !== null ) {
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// This is also excluded in the default view
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$headers['af_pattern'] = 'abusefilter-list-pattern';
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}
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if ( count( $this->getConfig()->get( 'AbuseFilterValidGroups' ) ) > 1 ) {
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$headers['af_group'] = 'abusefilter-list-group';
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}
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foreach ( $headers as &$msg ) {
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$msg = $this->msg( $msg )->text();
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}
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return $headers;
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}
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/**
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* @param string $name
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* @param string|null $value
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* @return string
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*/
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public function formatValue( $name, $value ) {
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$lang = $this->getLanguage();
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$user = $this->getUser();
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$linkRenderer = $this->getLinkRenderer();
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$row = $this->mCurrentRow;
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switch ( $name ) {
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case 'af_id':
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return $linkRenderer->makeLink(
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SpecialPage::getTitleFor( 'AbuseFilter', $value ),
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$lang->formatNum( intval( $value ) )
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);
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case 'af_pattern':
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return $this->getHighlightedPattern( $row );
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case 'af_public_comments':
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return $linkRenderer->makeLink(
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SpecialPage::getTitleFor( 'AbuseFilter', $row->af_id ),
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$value
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);
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case 'af_actions':
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$actions = explode( ',', $value );
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$displayActions = [];
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foreach ( $actions as $action ) {
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$displayActions[] = $this->specsFormatter->getActionDisplay( $action );
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}
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return $lang->commaList( $displayActions );
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case 'af_enabled':
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$statuses = [];
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if ( $row->af_deleted ) {
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$statuses[] = $this->msg( 'abusefilter-deleted' )->parse();
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} elseif ( $row->af_enabled ) {
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$statuses[] = $this->msg( 'abusefilter-enabled' )->parse();
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if ( $row->af_throttled ) {
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$statuses[] = $this->msg( 'abusefilter-throttled' )->parse();
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}
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} else {
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$statuses[] = $this->msg( 'abusefilter-disabled' )->parse();
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}
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if ( $row->af_global && $this->getConfig()->get( 'AbuseFilterIsCentral' ) ) {
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$statuses[] = $this->msg( 'abusefilter-status-global' )->parse();
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}
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return $lang->commaList( $statuses );
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case 'af_hidden':
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$msg = $value ? 'abusefilter-hidden' : 'abusefilter-unhidden';
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return $this->msg( $msg )->parse();
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case 'af_hit_count':
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if ( $this->afPermManager->canSeeLogDetailsForFilter( $user, $row->af_hidden ) ) {
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$count_display = $this->msg( 'abusefilter-hitcount' )
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->numParams( $value )->text();
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$link = $linkRenderer->makeKnownLink(
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SpecialPage::getTitleFor( 'AbuseLog' ),
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$count_display,
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[],
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[ 'wpSearchFilter' => $row->af_id ]
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);
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} else {
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$link = "";
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}
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return $link;
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case 'af_timestamp':
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$userLink =
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Linker::userLink(
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$row->af_user,
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$row->af_user_text
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) .
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Linker::userToolLinks(
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$row->af_user,
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$row->af_user_text
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);
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return $this->msg( 'abusefilter-edit-lastmod-text' )
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->rawParams(
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$this->mPage->getLinkToLatestDiff(
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$row->af_id,
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$lang->userTimeAndDate( $value, $user )
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),
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$userLink,
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$this->mPage->getLinkToLatestDiff(
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$row->af_id,
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$lang->userDate( $value, $user )
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),
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$this->mPage->getLinkToLatestDiff(
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$row->af_id,
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$lang->userTime( $value, $user )
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)
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)->params(
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wfEscapeWikiText( $row->af_user_text )
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)->parse();
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case 'af_group':
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return $this->specsFormatter->nameGroup( $value );
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default:
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throw new UnexpectedValueException( "Unknown row type $name!" );
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}
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}
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/**
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* Get the filter pattern with <b> elements surrounding the searched pattern
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*
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* @param stdClass $row
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* @return string
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*/
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private function getHighlightedPattern( stdClass $row ) {
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if ( $this->searchMode === null ) {
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throw new LogicException( 'Cannot search without a mode.' );
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}
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$maxLen = 50;
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if ( $this->searchMode === 'LIKE' ) {
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$position = mb_stripos( $row->af_pattern, $this->searchPattern );
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$length = mb_strlen( $this->searchPattern );
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} else {
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$regex = '/' . $this->searchPattern . '/u';
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if ( $this->searchMode === 'IRLIKE' ) {
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$regex .= 'i';
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}
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$matches = [];
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// phpcs:ignore Generic.PHP.NoSilencedErrors.Discouraged
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$check = @preg_match(
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$regex,
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$row->af_pattern,
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$matches
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);
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// This may happen in case of catastrophic backtracking, or regexps matching
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// the empty string.
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if ( $check === false || strlen( $matches[0] ) === 0 ) {
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return htmlspecialchars( mb_substr( $row->af_pattern, 0, 50 ) );
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}
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$length = mb_strlen( $matches[0] );
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$position = mb_strpos( $row->af_pattern, $matches[0] );
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}
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$remaining = $maxLen - $length;
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if ( $remaining <= 0 ) {
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$pattern = '<b>' .
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htmlspecialchars( mb_substr( $row->af_pattern, $position, $maxLen ) ) .
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'</b>';
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} else {
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// Center the snippet on the matched string
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$minoffset = max( $position - round( $remaining / 2 ), 0 );
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$pattern = mb_substr( $row->af_pattern, $minoffset, $maxLen );
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$pattern =
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htmlspecialchars( mb_substr( $pattern, 0, $position - $minoffset ) ) .
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'<b>' .
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htmlspecialchars( mb_substr( $pattern, $position - $minoffset, $length ) ) .
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'</b>' .
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htmlspecialchars( mb_substr(
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$pattern,
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$position - $minoffset + $length,
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$remaining - ( $position - $minoffset + $length )
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)
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);
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}
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return $pattern;
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}
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/**
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* @codeCoverageIgnore Merely declarative
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* @inheritDoc
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*/
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public function getDefaultSort() {
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return 'af_id';
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}
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/**
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* @codeCoverageIgnore Merely declarative
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* @inheritDoc
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*/
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public function getTableClass() {
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return parent::getTableClass() . ' mw-abusefilter-list-scrollable';
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}
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/**
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* @param stdClass $row
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* @return string
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* @see TablePager::getRowClass()
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*/
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public function getRowClass( $row ) {
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if ( $row->af_enabled ) {
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return $row->af_throttled ? 'mw-abusefilter-list-throttled' : 'mw-abusefilter-list-enabled';
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} elseif ( $row->af_deleted ) {
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return 'mw-abusefilter-list-deleted';
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} else {
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return 'mw-abusefilter-list-disabled';
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}
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}
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/**
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* @inheritDoc
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*/
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public function getIndexField() {
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return [ self::INDEX_FIELDS[$this->mSort] ];
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}
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/**
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* @param string $field
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*
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* @return bool
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*/
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public function isFieldSortable( $field ) {
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if ( ( $field === 'af_hit_count' || $field === 'af_public_comments' )
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&& !$this->afPermManager->canSeeLogDetails( $this->getAuthority() )
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) {
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return false;
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}
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return isset( self::INDEX_FIELDS[$field] );
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}
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}
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