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<?php
/**
* 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
*/
use MediaWiki\Auth\AbstractSecondaryAuthenticationProvider;
use MediaWiki\Auth\AuthenticationRequest;
use MediaWiki\Auth\AuthenticationResponse;
use MediaWiki\Auth\AuthManager;
/**
* AuthManager secondary authentication provider for TOTP second-factor authentication.
*
* After a successful primary authentication, requests a time-based one-time password
* (typically generated by a mobile app such as Google Authenticator) from the user.
*
* @see AuthManager
* @see https://en.wikipedia.org/wiki/Time-based_One-time_Password_Algorithm
*/
class TOTPSecondaryAuthenticationProvider extends AbstractSecondaryAuthenticationProvider {
/**
* @param string $action
* @param array $options
*
* @return array
*/
public function getAuthenticationRequests( $action, array $options ) {
switch ( $action ) {
case AuthManager::ACTION_LOGIN:
// don't ask for anything initially so the second factor is on a separate screen
return [];
default:
return [];
}
}
/**
* If the user has enabled two-factor authentication, request a second factor.
*
* @param User $user
* @param array $reqs
*
* @return AuthenticationResponse
*/
public function beginSecondaryAuthentication( $user, array $reqs ) {
$oathuser = OATHAuthHooks::getOATHUserRepository()->findByUser( $user );
if ( $oathuser->getKey() === null ) {
return AuthenticationResponse::newAbstain();
} else {
return AuthenticationResponse::newUI( [ new TOTPAuthenticationRequest() ],
wfMessage( 'oathauth-auth-ui' ), 'warning' );
}
}
/**
* Verify the second factor.
* @inheritDoc
*/
public function continueSecondaryAuthentication( $user, array $reqs ) {
/** @var TOTPAuthenticationRequest $request */
$request = AuthenticationRequest::getRequestByClass( $reqs, TOTPAuthenticationRequest::class );
if ( !$request ) {
return AuthenticationResponse::newUI( [ new TOTPAuthenticationRequest() ],
wfMessage( 'oathauth-login-failed' ), 'error' );
}
$oathuser = OATHAuthHooks::getOATHUserRepository()->findByUser( $user );
/** @suppress PhanUndeclaredProperty */
$token = $request->OATHToken;
if ( $oathuser->getKey() === null ) {
$this->logger->warning( 'Two-factor authentication was disabled mid-authentication for '
. $user->getName() );
return AuthenticationResponse::newAbstain();
}
// Don't increase pingLimiter, just check for limit exceeded.
if ( $user->pingLimiter( 'badoath', 0 ) ) {
return AuthenticationResponse::newUI(
[ new TOTPAuthenticationRequest() ],
new Message(
'oathauth-throttled',
// Arbitrary duration given here
[ Message::durationParam( 60 ) ]
), 'error' );
}
if ( $oathuser->getKey()->verifyToken( $token, $oathuser ) ) {
return AuthenticationResponse::newPass();
} else {
return AuthenticationResponse::newUI( [ new TOTPAuthenticationRequest() ],
wfMessage( 'oathauth-login-failed' ), 'error' );
}
}
/**
* @param User $user
* @param User $creator
* @param array $reqs
*
* @return AuthenticationResponse
*/
public function beginSecondaryAccountCreation( $user, $creator, array $reqs ) {
return AuthenticationResponse::newAbstain();
}
}
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