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<?php /** * A central user id lookup service implementation * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * http://www.gnu.org/copyleft/gpl.html * * @file */ namespace MediaWiki\User\CentralId; use MediaWiki\Block\HideUserUtils; use MediaWiki\Config\Config; use MediaWiki\MainConfigNames; use MediaWiki\User\UserIdentity; use MediaWiki\WikiMap\WikiMap; use Wikimedia\Rdbms\DBAccessObjectUtils; use Wikimedia\Rdbms\IConnectionProvider; use Wikimedia\Rdbms\IDBAccessObject; /** * A CentralIdLookup provider that just uses local IDs. Useful if the wiki * isn't part of a cluster or you're using shared user tables. * * @note Shared user table support expects that all wikis involved have * $wgSharedDB and $wgSharedTables set, and that all wikis involved in the * sharing are listed in $wgLocalDatabases, and that no wikis not involved in * the sharing are listed in $wgLocalDatabases. * @since 1.27 */ class LocalIdLookup extends CentralIdLookup { private IConnectionProvider $dbProvider; private HideUserUtils $hideUserUtils; /** @var string|null */ private $sharedDB; /** @var string[] */ private $sharedTables; /** @var string[] */ private $localDatabases; /** * @param Config $config * @param IConnectionProvider $dbProvider * @param HideUserUtils $hideUserUtils */ public function __construct( Config $config, IConnectionProvider $dbProvider, HideUserUtils $hideUserUtils ) { $this->sharedDB = $config->get( MainConfigNames::SharedDB ); $this->sharedTables = $config->get( MainConfigNames::SharedTables ); $this->localDatabases = $config->get( MainConfigNames::LocalDatabases ); $this->dbProvider = $dbProvider; $this->hideUserUtils = $hideUserUtils; } public function isAttached( UserIdentity $user, $wikiId = UserIdentity::LOCAL ): bool { // If the user has no ID, it can't be attached if ( !$user->isRegistered() ) { return false; } // Easy case, we're checking locally if ( !$wikiId || WikiMap::isCurrentWikiId( $wikiId ) ) { return true; } // Assume that shared user tables are set up as described above, if // they're being used at all. return $this->sharedDB !== null && in_array( 'user', $this->sharedTables, true ) && in_array( $wikiId, $this->localDatabases, true ); } public function lookupCentralIds( array $idToName, $audience = self::AUDIENCE_PUBLIC, $flags = IDBAccessObject::READ_NORMAL ): array { if ( !$idToName ) { return []; } $audience = $this->checkAudience( $audience ); $db = DBAccessObjectUtils::getDBFromRecency( $this->dbProvider, $flags ); $queryBuilder = $db->newSelectQueryBuilder(); $queryBuilder ->select( [ 'user_id', 'user_name' ] ) ->from( 'user' ) ->where( [ 'user_id' => array_map( 'intval', array_keys( $idToName ) ) ] ) ->recency( $flags ); if ( $audience && !$audience->isAllowed( 'hideuser' ) ) { $this->hideUserUtils->addFieldToBuilder( $queryBuilder ); } $res = $queryBuilder->caller( __METHOD__ )->fetchResultSet(); foreach ( $res as $row ) { $idToName[$row->user_id] = empty( $row->hu_deleted ) ? $row->user_name : ''; } return $idToName; } public function lookupUserNames( array $nameToId, $audience = self::AUDIENCE_PUBLIC, $flags = IDBAccessObject::READ_NORMAL ): array { if ( !$nameToId ) { return []; } $audience = $this->checkAudience( $audience ); $db = DBAccessObjectUtils::getDBFromRecency( $this->dbProvider, $flags ); $queryBuilder = $db->newSelectQueryBuilder(); $queryBuilder ->select( [ 'user_id', 'user_name' ] ) ->from( 'user' ) ->where( [ 'user_name' => array_map( 'strval', array_keys( $nameToId ) ) ] ) ->recency( $flags ); if ( $audience && !$audience->isAllowed( 'hideuser' ) ) { $queryBuilder->andWhere( $this->hideUserUtils->getExpression( $db ) ); } $res = $queryBuilder->caller( __METHOD__ )->fetchResultSet(); foreach ( $res as $row ) { $nameToId[$row->user_name] = (int)$row->user_id; } return $nameToId; } } /** @deprecated class alias since 1.41 */ class_alias( LocalIdLookup::class, 'LocalIdLookup' );
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