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<?php
namespace MediaWiki\CheckUser;
use ExtensionRegistry;
use MediaWiki\User\UserGroupManagerFactory;
use MediaWiki\User\UserIdentityValue;
use stdClass;
use User;
use Wikimedia\Rdbms\IDatabase;
use Wikimedia\Rdbms\ILBFactory;
use Wikimedia\Rdbms\IResultWrapper;
class PreliminaryCheckService {
/** @var ILBFactory */
private $lbFactory;
/** @var UserGroupManagerFactory */
private $userGroupManagerFactory;
/** @var string */
private $localWikiId;
/** @var ExtensionRegistry */
private $extensionRegistry;
/**
* @param ILBFactory $lbFactory
* @param ExtensionRegistry $extensionRegistry
* @param UserGroupManagerFactory $userGroupManagerFactory
* @param string $localWikiId
*/
public function __construct( ILBFactory $lbFactory,
ExtensionRegistry $extensionRegistry,
UserGroupManagerFactory $userGroupManagerFactory,
string $localWikiId
) {
$this->lbFactory = $lbFactory;
$this->extensionRegistry = $extensionRegistry;
$this->userGroupManagerFactory = $userGroupManagerFactory;
$this->localWikiId = $localWikiId;
}
/**
* Get the information needed to build a query for the preliminary check. The
* query will be different depending on whether CentralAuth is available. Any
* information for paginating is handled in the PreliminaryCheckPager.
*
* @param User[] $users
* @return array
*/
public function getQueryInfo( array $users ) : array {
if ( $this->extensionRegistry->isLoaded( 'CentralAuth' ) ) {
$info = $this->getGlobalQueryInfo( $users );
} else {
$info = $this->getLocalQueryInfo( $users );
}
return $info;
}
/**
* Get the information for building a query if CentralAuth is available.
*
* @param User[] $users
* @return array
*/
protected function getGlobalQueryInfo( array $users ) : array {
return [
'tables' => 'localuser',
'fields' => [
'lu_name',
'lu_wiki',
],
'conds' => $this->buildUserConds( $users, 'lu_name' ),
];
}
/**
* Get the information for building a query if CentralAuth is unavailable.
*
* @param User[]|string[] $users
* @return array
*/
protected function getLocalQueryInfo( array $users ) : array {
return [
'tables' => 'user',
'fields' => [
'user_name',
'user_id',
'user_editcount',
'user_registration',
],
'conds' => $this->buildUserConds( $users, 'user_name' ),
];
}
/**
* @param User[] $users
* @param string $field
* @return array
*/
protected function buildUserConds( array $users, string $field ) : array {
if ( !$users ) {
return [ 0 ];
}
return [ $field => array_map( 'strval', $users ) ];
}
/**
* Get the replica database of a local wiki, given a wiki ID.
*
* @param string $wikiId
* @return IDatabase
*/
protected function getLocalDb( $wikiId ) : IDatabase {
return $this->lbFactory->getMainLB( $wikiId )->getConnectionRef( DB_REPLICA, [], $wikiId );
}
/**
* Perform additional queries to get the required data that is not returned
* by the pager's query. (The pager performs the query that is used for
* pagination.)
*
* @param IResultWrapper $rows
* @return array
*/
public function preprocessResults( IResultWrapper $rows ) : array {
$data = [];
foreach ( $rows as $row ) {
if ( $this->extensionRegistry->isLoaded( 'CentralAuth' ) ) {
$localRow = $this->getLocalUserData( $row->lu_name, $row->lu_wiki );
$data[] = $this->getAdditionalLocalData( $localRow, $row->lu_wiki );
} else {
$data[] = $this->getAdditionalLocalData( $row, $this->localWikiId );
}
}
return $data;
}
/**
* Get basic user information for a given user's account on a given wiki.
*
* @param string $username
* @param string $wikiId
* @return stdClass|bool
*/
public function getLocalUserData( string $username, string $wikiId ) {
$db = $this->getLocalDb( $wikiId );
$queryInfo = $this->getLocalQueryInfo( [ $username ] );
return $db->selectRow(
$queryInfo['tables'],
$queryInfo['fields'],
$queryInfo['conds'],
__METHOD__
);
}
/**
* Get blocked status and user groups for a given user's account on a
* given wiki.
*
* @param stdClass|bool $row
* @param string $wikiId
* @return array
*/
protected function getAdditionalLocalData( $row, string $wikiId ) : array {
$db = $this->getLocalDb( $wikiId );
return [
'id' => $row->user_id,
'name' => $row->user_name,
'registration' => $row->user_registration,
'editcount' => $row->user_editcount,
'blocked' => $this->isUserBlocked( $row->user_id, $db ),
'groups' => $this->userGroupManagerFactory
->getUserGroupManager( $wikiId )
->getUserGroups(
new UserIdentityValue( (int)$row->user_id, $row->user_name, 0 )
),
'wiki' => $wikiId,
];
}
/**
* @param int $userId
* @param IDatabase $db Database connection
* @return bool
*/
protected function isUserBlocked( int $userId, IDatabase $db ): bool {
$blocks = $db->selectField(
'ipblocks', '1', [ 'ipb_user' => $userId ], __METHOD__, [ 'LIMIT' => 1 ]
);
return $blocks > 0;
}
}
|
GitWeb