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<?php
namespace MediaWiki\Extension\AbuseFilter;
use MediaWiki\Permissions\Authority;
use MediaWiki\User\User;
use MediaWiki\User\UserGroupManager;
use MediaWiki\User\UserIdentity;
use MediaWiki\User\UserNameUtils;
use MessageLocalizer;
use Psr\Log\LoggerInterface;
class FilterUser {
public const SERVICE_NAME = 'AbuseFilterFilterUser';
private MessageLocalizer $messageLocalizer;
private UserGroupManager $userGroupManager;
private UserNameUtils $userNameUtils;
private LoggerInterface $logger;
/**
* @param MessageLocalizer $messageLocalizer
* @param UserGroupManager $userGroupManager
* @param UserNameUtils $userNameUtils
* @param LoggerInterface $logger
*/
public function __construct(
MessageLocalizer $messageLocalizer,
UserGroupManager $userGroupManager,
UserNameUtils $userNameUtils,
LoggerInterface $logger
) {
$this->messageLocalizer = $messageLocalizer;
$this->userGroupManager = $userGroupManager;
$this->userNameUtils = $userNameUtils;
$this->logger = $logger;
}
/**
* @return Authority
*/
public function getAuthority(): Authority {
return $this->getUser();
}
/**
* @return UserIdentity
*/
public function getUserIdentity(): UserIdentity {
return $this->getUser();
}
/**
* Compares the given $user to see if they are the same as the FilterUser.
*
* @return bool
*/
public function isSameUserAs( UserIdentity $user ): bool {
// Checking the usernames are equal is enough, as this is what is done by
// User::equals and UserIdentityValue::equals.
return $user->getName() === $this->getFilterUserName();
}
/**
* @todo Stop using the User class when User::newSystemUser is refactored.
* @return User
*/
private function getUser(): User {
$user = User::newSystemUser( $this->getFilterUserName(), [ 'steal' => true ] );
'@phan-var User $user';
// Promote user to 'sysop' so it doesn't look
// like an unprivileged account is blocking users
if ( !in_array( 'sysop', $this->userGroupManager->getUserGroups( $user ) ) ) {
$this->userGroupManager->addUserToGroup( $user, 'sysop' );
}
return $user;
}
/**
* Gets the username for the FilterUser.
*
* @return string
*/
private function getFilterUserName(): string {
$username = $this->messageLocalizer->msg( 'abusefilter-blocker' )->inContentLanguage()->text();
if ( !$this->userNameUtils->getCanonical( $username ) ) {
// User name is invalid. Don't throw because this is a system message, easy
// to change and make wrong either by mistake or intentionally to break the site.
$this->logger->warning(
'The AbuseFilter user\'s name is invalid. Please change it in ' .
'MediaWiki:abusefilter-blocker'
);
// Use the default name to avoid breaking other stuff. This should have no harm,
// aside from blocks temporarily attributed to another user.
// Don't use the database in case the English onwiki message is broken, T284364
$username = $this->messageLocalizer->msg( 'abusefilter-blocker' )
->inLanguage( 'en' )
->useDatabase( false )
->text();
}
return $username;
}
}
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