put in r110285 again now that 1.19 branched
[lhc/web/wiklou.git] / includes / api / ApiLogin.php
index 1caac14..aa570cb 100644 (file)
@@ -1,11 +1,10 @@
 <?php
-
-/*
- * Created on Sep 19, 2006
+/**
  *
- * API for MediaWiki 1.8+
  *
- * Copyright (C) 2006-2007 Yuri Astrakhan <Firstname><Lastname>@gmail.com,
+ * Created on Sep 19, 2006
+ *
+ * Copyright © 2006-2007 Yuri Astrakhan <Firstname><Lastname>@gmail.com,
  * Daniel Cannon (cannon dot danielc at gmail dot com)
  *
  * This program is free software; you can redistribute it and/or modify
  *
  * 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.,
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
  */
 
-if (!defined('MEDIAWIKI')) {
-       // Eclipse helper - will be ignored in production
-       require_once ('ApiBase.php');
-}
-
 /**
  * Unit to authenticate log-in attempts to the current wiki.
  *
- * @addtogroup API
+ * @ingroup API
  */
 class ApiLogin extends ApiBase {
-       
-       /**
-        * The amount of time a user must wait after submitting
-        * a bad login (will be multiplied by the THROTTLE_FACTOR for each bad attempt)
-        */
-       const THROTTLE_TIME = 10;
 
-       /**
-        * The factor by which the wait-time in between authentication
-        * attempts is increased every failed attempt.
-        */
-       const THROTTLE_FACTOR = 1.5;
-       
-       /**
-        * The maximum number of failed logins after which the wait increase stops. 
-        */
-       const THOTTLE_MAX_COUNT = 10;
-       
-       public function __construct($main, $action) {
-               parent :: __construct($main, $action, 'lg');
+       public function __construct( $main, $action ) {
+               parent::__construct( $main, $action, 'lg' );
        }
 
        /**
         * Executes the log-in attempt using the parameters passed. If
         * the log-in succeeeds, it attaches a cookie to the session
         * and outputs the user id, username, and session token. If a
-        * log-in fails, as the result of a bad password, a nonexistant
+        * log-in fails, as the result of a bad password, a nonexistent
         * user, or any other reason, the host is cached with an expiry
         * and no log-in attempts will be accepted until that expiry
         * is reached. The expiry is $this->mLoginThrottle.
-        *
-        * @access public
         */
        public function execute() {
-               $name = $password = $domain = null;
-               extract($this->extractRequestParams());
-
-               $params = new FauxRequest(array (
-                       'wpName' => $name,
-                       'wpPassword' => $password,
-                       'wpDomain' => $domain,
-                       'wpRemember' => ''
-               ));
-
-               $result = array ();
-
-               $nextLoginIn = $this->getNextLoginTimeout();
-               if ($nextLoginIn > 0) {
-                       $result['result']  = 'NeedToWait';
-                       $result['details'] = "Please wait $nextLoginIn seconds before next log-in attempt";
-                       $result['wait'] = $nextLoginIn;
-                       $this->getResult()->addValue(null, 'login', $result);
-                       return;
-               }
+               $params = $this->extractRequestParams();
+
+               $result = array();
 
-               $loginForm = new LoginForm($params);
-               switch ($loginForm->authenticateUserData()) {
-                       case LoginForm :: SUCCESS :
-                               global $wgUser;
+               // Init session if necessary
+               if ( session_id() == '' ) {
+                       wfSetupSession();
+               }
 
-                               $wgUser->setOption('rememberpassword', 1);
-                               $wgUser->setCookies();
+               $context = new DerivativeContext( $this->getContext() );
+               $context->setRequest( new DerivativeRequest(
+                       $this->getContext()->getRequest(),
+                       array(
+                               'wpName' => $params['name'],
+                               'wpPassword' => $params['password'],
+                               'wpDomain' => $params['domain'],
+                               'wpLoginToken' => $params['token'],
+                               'wpRemember' => ''
+                       )
+               ) );
+               $loginForm = new LoginForm();
+               $loginForm->setContext( $context );
+
+               global $wgCookiePrefix, $wgPasswordAttemptThrottle;
+
+               $authRes = $loginForm->authenticateUserData();
+               switch ( $authRes ) {
+                       case LoginForm::SUCCESS:
+                               $user = $context->getUser();
+                               $this->getContext()->setUser( $user );
+                               $user->setOption( 'rememberpassword', 1 );
+                               $user->setCookies( $this->getRequest() );
+
+                               // Run hooks.
+                               // @todo FIXME: Split back and frontend from this hook.
+                               // @todo FIXME: This hook should be placed in the backend
+                               $injected_html = '';
+                               wfRunHooks( 'UserLoginComplete', array( &$user, &$injected_html ) );
 
                                $result['result'] = 'Success';
-                               $result['lguserid'] = $_SESSION['wsUserID'];
-                               $result['lgusername'] = $_SESSION['wsUserName'];
-                               $result['lgtoken'] = $_SESSION['wsToken'];
+                               $result['lguserid'] = intval( $user->getId() );
+                               $result['lgusername'] = $user->getName();
+                               $result['lgtoken'] = $user->getToken();
+                               $result['cookieprefix'] = $wgCookiePrefix;
+                               $result['sessionid'] = session_id();
+                               break;
+
+                       case LoginForm::NEED_TOKEN:
+                               $result['result'] = 'NeedToken';
+                               $result['token'] = $loginForm->getLoginToken();
+                               $result['cookieprefix'] = $wgCookiePrefix;
+                               $result['sessionid'] = session_id();
+                               break;
+
+                       case LoginForm::WRONG_TOKEN:
+                               $result['result'] = 'WrongToken';
                                break;
 
-                       case LoginForm :: NO_NAME :
+                       case LoginForm::NO_NAME:
                                $result['result'] = 'NoName';
                                break;
-                       case LoginForm :: ILLEGAL :
+
+                       case LoginForm::ILLEGAL:
                                $result['result'] = 'Illegal';
                                break;
-                       case LoginForm :: WRONG_PLUGIN_PASS :
+
+                       case LoginForm::WRONG_PLUGIN_PASS:
                                $result['result'] = 'WrongPluginPass';
                                break;
-                       case LoginForm :: NOT_EXISTS :
+
+                       case LoginForm::NOT_EXISTS:
                                $result['result'] = 'NotExists';
                                break;
-                       case LoginForm :: WRONG_PASS :
+
+                       case LoginForm::RESET_PASS: // bug 20223 - Treat a temporary password as wrong. Per SpecialUserLogin - "The e-mailed temporary password should not be used for actual logins;"
+                       case LoginForm::WRONG_PASS:
                                $result['result'] = 'WrongPass';
                                break;
-                       case LoginForm :: EMPTY_PASS :
+
+                       case LoginForm::EMPTY_PASS:
                                $result['result'] = 'EmptyPass';
                                break;
-                       default :
-                               ApiBase :: dieDebug(__METHOD__, 'Unhandled case value');
-               }
 
-               if ($result['result'] != 'Success') {
-                       $result['wait'] = $this->cacheBadLogin();
-               }
-               // if we were allowed to try to login, memcache is fine
-               
-               $this->getResult()->addValue(null, 'login', $result);
-       }
+                       case LoginForm::CREATE_BLOCKED:
+                               $result['result'] = 'CreateBlocked';
+                               $result['details'] = 'Your IP address is blocked from account creation';
+                               break;
 
-       
-       /**
-        * Caches a bad-login attempt associated with the host and with an 
-        * expiry of $this->mLoginThrottle. These are cached by a key 
-        * separate from that used by the captcha system--as such, logging
-        * in through the standard interface will get you a legal session
-        * and cookies to prove it, but will not remove this entry.
-        *
-        * Returns the number of seconds until next login attempt will be allowed. 
-        *
-        * @access private
-        */
-       private function cacheBadLogin() {
-               global $wgMemc;
-               
-               $key = $this->getMemCacheKey();
-               $val =& $wgMemc->get( $key );
-
-               $val['lastReqTime'] = time();
-               if (!isset($val['count'])) {
-                       $val['count'] = 1;
-               } else {
-                       $val['count'] = 1 + $val['count'];
-               }
-               
-               $delay = ApiLogin::calculateDelay($val);
-               
-               $wgMemc->delete($key);
-               $wgMemc->add( $key, $val, $delay );
-               
-               return $delay;
-       }
-       
-       /**
-        * How much time the client must wait before it will be 
-        * allowed to try to log-in next.
-        * The return value is 0 if no wait is required.
-        */
-       private function getNextLoginTimeout() {
-               global $wgMemc;
-               
-               $val = $wgMemc->get($this->getMemCacheKey());
+                       case LoginForm::THROTTLED:
+                               $result['result'] = 'Throttled';
+                               $result['wait'] = intval( $wgPasswordAttemptThrottle['seconds'] );
+                               break;
 
-               $elapse = (time() - $val['lastReqTime']) / 1000;  // in seconds
-               $canRetryIn = ApiLogin::calculateDelay($val) - $elapse;
-               $canRetryIn = $canRetryIn < 0 ? 0 : $canRetryIn; 
+                       case LoginForm::USER_BLOCKED:
+                               $result['result'] = 'Blocked';
+                               break;
 
-               return $canRetryIn;
+                       case LoginForm::ABORTED:
+                               $result['result'] = 'Aborted';
+                               $result['reason'] =  $loginForm->mAbortLoginErrorMsg;
+                               break;
+
+                       default:
+                               ApiBase::dieDebug( __METHOD__, "Unhandled case value: {$authRes}" );
+               }
+
+               $this->getResult()->addValue( null, 'login', $result );
        }
-       
-       /**
-        * Based on the number of previously attempted logins, returns
-        * the delay (in seconds) when the next login attempt will be allowed.
-        */
-       private static function calculateDelay($val) {
-               // Defensive programming
-               $count = $val['count'];
-               $count = $count < 1 ? 1 : $count;
-               $count = $count > self::THOTTLE_MAX_COUNT ? self::THOTTLE_MAX_COUNT : $count;
 
-               return self::THROTTLE_TIME + self::THROTTLE_TIME * ($count - 1) * self::THROTTLE_FACTOR;
-       } 
+       public function mustBePosted() {
+               return true;
+       }
 
-       /**
-       * Internal cache key for badlogin checks. Robbed from the 
-       * ConfirmEdit extension and modified to use a key unique to the
-       * API login.3
-       *
-       * @return string
-       * @access private
-       */
-       private function getMemCacheKey() {
-               return wfMemcKey( 'apilogin', 'badlogin', 'ip', wfGetIP() );
+       public function isReadMode() {
+               return false;
        }
 
-       protected function getAllowedParams() {
-               return array (
+       public function getAllowedParams() {
+               return array(
                        'name' => null,
                        'password' => null,
-                       'domain' => null
+                       'domain' => null,
+                       'token' => null,
                );
        }
 
-       protected function getParamDescription() {
-               return array (
+       public function getParamDescription() {
+               return array(
                        'name' => 'User Name',
                        'password' => 'Password',
-                       'domain' => 'Domain (optional)'
+                       'domain' => 'Domain (optional)',
+                       'token' => 'Login token obtained in first request',
                );
        }
 
-       protected function getDescription() {
-               return array (
-                       'This module is used to login and get the authentication tokens. ' .
-                       'In the event of a successful log-in, a cookie will be attached ' .
-                       'to your session. In the event of a failed log-in, you will not ' .
-                       'be able to attempt another log-in through this method for 60 ' .
-                       'seconds--this is to prevent its use in aiding automated password ' .
-                       'crackers.'
+       public function getDescription() {
+               return array(
+                       'Log in and get the authentication tokens. ',
+                       'In the event of a successful log-in, a cookie will be attached',
+                       'to your session. In the event of a failed log-in, you will not ',
+                       'be able to attempt another log-in through this method for 5 seconds.',
+                       'This is to prevent password guessing by automated password crackers'
                );
        }
-       
-       protected function getExamples() {
+
+       public function getPossibleErrors() {
+               return array_merge( parent::getPossibleErrors(), array(
+                       array( 'code' => 'NeedToken', 'info' => 'You need to resubmit your login with the specified token. See https://bugzilla.wikimedia.org/show_bug.cgi?id=23076' ),
+                       array( 'code' => 'WrongToken', 'info' => 'You specified an invalid token' ),
+                       array( 'code' => 'NoName', 'info' => 'You didn\'t set the lgname parameter' ),
+                       array( 'code' => 'Illegal', 'info' => ' You provided an illegal username' ),
+                       array( 'code' => 'NotExists', 'info' => ' The username you provided doesn\'t exist' ),
+                       array( 'code' => 'EmptyPass', 'info' => ' You didn\'t set the lgpassword parameter or you left it empty' ),
+                       array( 'code' => 'WrongPass', 'info' => ' The password you provided is incorrect' ),
+                       array( 'code' => 'WrongPluginPass', 'info' => 'Same as "WrongPass", returned when an authentication plugin rather than MediaWiki itself rejected the password' ),
+                       array( 'code' => 'CreateBlocked', 'info' => 'The wiki tried to automatically create a new account for you, but your IP address has been blocked from account creation' ),
+                       array( 'code' => 'Throttled', 'info' => 'You\'ve logged in too many times in a short time' ),
+                       array( 'code' => 'Blocked', 'info' => 'User is blocked' ),
+               ) );
+       }
+
+       public function getExamples() {
                return array(
                        'api.php?action=login&lgname=user&lgpassword=password'
                );
        }
 
+       public function getHelpUrls() {
+               return 'https://www.mediawiki.org/wiki/API:Login';
+       }
+
        public function getVersion() {
                return __CLASS__ . ': $Id$';
        }
 }
-?>