]> scripts.mit.edu Git - autoinstallsdev/mediawiki.git/blobdiff - includes/specials/SpecialUserlogin.php
MediaWiki 1.30.2
[autoinstallsdev/mediawiki.git] / includes / specials / SpecialUserlogin.php
index b065bdd6a40ad468f5c0917c88fbf9960fa86a63..253cd507aa483a52095a5647ce3484680bce5748 100644 (file)
 <?php
 /**
+ * Implements Special:UserLogin
+ *
+ * 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
  * @ingroup SpecialPage
  */
 
-/**
- * constructor
- */
-function wfSpecialUserlogin( $par = '' ) {
-       global $wgRequest;
-       if( session_id() == '' ) {
-               wfSetupSession();
-       }
-
-       $form = new LoginForm( $wgRequest, $par );
-       $form->execute();
-}
+use MediaWiki\Auth\AuthManager;
+use MediaWiki\Logger\LoggerFactory;
 
 /**
- * implements Special:Login
+ * Implements Special:UserLogin
+ *
  * @ingroup SpecialPage
  */
-class LoginForm {
+class SpecialUserLogin extends LoginSignupSpecialPage {
+       protected static $allowedActions = [
+               AuthManager::ACTION_LOGIN,
+               AuthManager::ACTION_LOGIN_CONTINUE
+       ];
 
-       const SUCCESS = 0;
-       const NO_NAME = 1;
-       const ILLEGAL = 2;
-       const WRONG_PLUGIN_PASS = 3;
-       const NOT_EXISTS = 4;
-       const WRONG_PASS = 5;
-       const EMPTY_PASS = 6;
-       const RESET_PASS = 7;
-       const ABORTED = 8;
-       const CREATE_BLOCKED = 9;
-       const THROTTLED = 10;
-
-       var $mName, $mPassword, $mRetype, $mReturnTo, $mCookieCheck, $mPosted;
-       var $mAction, $mCreateaccount, $mCreateaccountMail, $mMailmypassword;
-       var $mLoginattempt, $mRemember, $mEmail, $mDomain, $mLanguage, $mSkipCookieCheck;
-
-       /**
-        * Constructor
-        * @param WebRequest $request A WebRequest object passed by reference
-        */
-       function LoginForm( &$request, $par = '' ) {
-               global $wgLang, $wgAllowRealName, $wgEnableEmail;
-               global $wgAuth, $wgRedirectOnLogin;
-
-               $this->mType = ( $par == 'signup' ) ? $par : $request->getText( 'type' ); # Check for [[Special:Userlogin/signup]]
-               $this->mName = $request->getText( 'wpName' );
-               $this->mPassword = $request->getText( 'wpPassword' );
-               $this->mRetype = $request->getText( 'wpRetype' );
-               $this->mDomain = $request->getText( 'wpDomain' );
-               $this->mReturnTo = $request->getVal( 'returnto' );
-               $this->mCookieCheck = $request->getVal( 'wpCookieCheck' );
-               $this->mPosted = $request->wasPosted();
-               $this->mCreateaccount = $request->getCheck( 'wpCreateaccount' );
-               $this->mCreateaccountMail = $request->getCheck( 'wpCreateaccountMail' )
-                                           && $wgEnableEmail;
-               $this->mMailmypassword = $request->getCheck( 'wpMailmypassword' )
-                                        && $wgEnableEmail;
-               $this->mLoginattempt = $request->getCheck( 'wpLoginattempt' );
-               $this->mAction = $request->getVal( 'action' );
-               $this->mRemember = $request->getCheck( 'wpRemember' );
-               $this->mLanguage = $request->getText( 'uselang' );
-               $this->mSkipCookieCheck = $request->getCheck( 'wpSkipCookieCheck' );
-
-               if ( $wgRedirectOnLogin ) {
-                       $this->mReturnTo = $wgRedirectOnLogin;
-               }
-
-               if( $wgEnableEmail ) {
-                       $this->mEmail = $request->getText( 'wpEmail' );
-               } else {
-                       $this->mEmail = '';
-               }
-               if( $wgAllowRealName ) {
-                   $this->mRealName = $request->getText( 'wpRealName' );
-               } else {
-                   $this->mRealName = '';
-               }
+       protected static $messages = [
+               'authform-newtoken' => 'nocookiesforlogin',
+               'authform-notoken' => 'sessionfailure',
+               'authform-wrongtoken' => 'sessionfailure',
+       ];
 
-               if( !$wgAuth->validDomain( $this->mDomain ) ) {
-                       $this->mDomain = 'invaliddomain';
-               }
-               $wgAuth->setDomain( $this->mDomain );
-
-               # When switching accounts, it sucks to get automatically logged out
-               if( $this->mReturnTo == $wgLang->specialPage( 'Userlogout' ) ) {
-                       $this->mReturnTo = '';
-               }
-       }
-
-       function execute() {
-               if ( !is_null( $this->mCookieCheck ) ) {
-                       $this->onCookieRedirectCheck( $this->mCookieCheck );
-                       return;
-               } else if( $this->mPosted ) {
-                       if( $this->mCreateaccount ) {
-                               return $this->addNewAccount();
-                       } else if ( $this->mCreateaccountMail ) {
-                               return $this->addNewAccountMailPassword();
-                       } else if ( $this->mMailmypassword ) {
-                               return $this->mailPassword();
-                       } else if ( ( 'submitlogin' == $this->mAction ) || $this->mLoginattempt ) {
-                               return $this->processLogin();
-                       }
-               }
-               $this->mainLoginForm( '' );
+       public function __construct() {
+               parent::__construct( 'Userlogin' );
        }
 
-       /**
-        * @private
-        */
-       function addNewAccountMailPassword() {
-               global $wgOut;
-
-               if ('' == $this->mEmail) {
-                       $this->mainLoginForm( wfMsg( 'noemail', htmlspecialchars( $this->mName ) ) );
-                       return;
-               }
-
-               $u = $this->addNewaccountInternal();
-
-               if ($u == NULL) {
-                       return;
-               }
-
-               // Wipe the initial password and mail a temporary one
-               $u->setPassword( null );
-               $u->saveSettings();
-               $result = $this->mailPasswordInternal( $u, false, 'createaccount-title', 'createaccount-text' );
-
-               wfRunHooks( 'AddNewAccount', array( $u, true ) );
-               $u->addNewUserLogEntry();
-
-               $wgOut->setPageTitle( wfMsg( 'accmailtitle' ) );
-               $wgOut->setRobotPolicy( 'noindex,nofollow' );
-               $wgOut->setArticleRelated( false );
-
-               if( WikiError::isError( $result ) ) {
-                       $this->mainLoginForm( wfMsg( 'mailerror', $result->getMessage() ) );
-               } else {
-                       $wgOut->addWikiMsg( 'accmailtext', $u->getName(), $u->getEmail() );
-                       $wgOut->returnToMain( false );
-               }
-               $u = 0;
-       }
-
-
-       /**
-        * @private
-        */
-       function addNewAccount() {
-               global $wgUser, $wgEmailAuthentication;
-
-               # Create the account and abort if there's a problem doing so
-               $u = $this->addNewAccountInternal();
-               if( $u == NULL )
-                       return;
-
-               # If we showed up language selection links, and one was in use, be
-               # smart (and sensible) and save that language as the user's preference
-               global $wgLoginLanguageSelector;
-               if( $wgLoginLanguageSelector && $this->mLanguage )
-                       $u->setOption( 'language', $this->mLanguage );
-
-               # Send out an email authentication message if needed
-               if( $wgEmailAuthentication && User::isValidEmailAddr( $u->getEmail() ) ) {
-                       global $wgOut;
-                       $error = $u->sendConfirmationMail();
-                       if( WikiError::isError( $error ) ) {
-                               $wgOut->addWikiMsg( 'confirmemail_sendfailed', $error->getMessage() );
-                       } else {
-                               $wgOut->addWikiMsg( 'confirmemail_oncreate' );
-                       }
-               }
-
-               # Save settings (including confirmation token)
-               $u->saveSettings();
-
-               # If not logged in, assume the new account as the current one and set
-               # session cookies then show a "welcome" message or a "need cookies"
-               # message as needed
-               if( $wgUser->isAnon() ) {
-                       $wgUser = $u;
-                       $wgUser->setCookies();
-                       wfRunHooks( 'AddNewAccount', array( $wgUser ) );
-                       $wgUser->addNewUserLogEntry();
-                       if( $this->hasSessionCookie() ) {
-                               return $this->successfulCreation();
-                       } else {
-                               return $this->cookieRedirectCheck( 'new' );
-                       }
-               } else {
-                       # Confirm that the account was created
-                       global $wgOut;
-                       $self = SpecialPage::getTitleFor( 'Userlogin' );
-                       $wgOut->setPageTitle( wfMsgHtml( 'accountcreated' ) );
-                       $wgOut->setArticleRelated( false );
-                       $wgOut->setRobotPolicy( 'noindex,nofollow' );
-                       $wgOut->addHTML( wfMsgWikiHtml( 'accountcreatedtext', $u->getName() ) );
-                       $wgOut->returnToMain( false, $self );
-                       wfRunHooks( 'AddNewAccount', array( $u ) );
-                       $u->addNewUserLogEntry();
-                       return true;
-               }
-       }
-
-       /**
-        * @private
-        */
-       function addNewAccountInternal() {
-               global $wgUser, $wgOut;
-               global $wgEnableSorbs, $wgProxyWhitelist;
-               global $wgMemc, $wgAccountCreationThrottle;
-               global $wgAuth, $wgMinimalPasswordLength;
-               global $wgEmailConfirmToEdit;
-
-               // If the user passes an invalid domain, something is fishy
-               if( !$wgAuth->validDomain( $this->mDomain ) ) {
-                       $this->mainLoginForm( wfMsg( 'wrongpassword' ) );
-                       return false;
-               }
-
-               // If we are not allowing users to login locally, we should be checking
-               // to see if the user is actually able to authenticate to the authenti-
-               // cation server before they create an account (otherwise, they can
-               // create a local account and login as any domain user). We only need
-               // to check this for domains that aren't local.
-               if( 'local' != $this->mDomain && '' != $this->mDomain ) {
-                       if( !$wgAuth->canCreateAccounts() && ( !$wgAuth->userExists( $this->mName ) || !$wgAuth->authenticate( $this->mName, $this->mPassword ) ) ) {
-                               $this->mainLoginForm( wfMsg( 'wrongpassword' ) );
-                               return false;
-                       }
-               }
-
-               if ( wfReadOnly() ) {
-                       $wgOut->readOnlyPage();
-                       return false;
-               }
-
-               # Check permissions
-               if ( !$wgUser->isAllowed( 'createaccount' ) ) {
-                       $this->userNotPrivilegedMessage();
-                       return false;
-               } elseif ( $wgUser->isBlockedFromCreateAccount() ) {
-                       $this->userBlockedMessage();
-                       return false;
-               }
-
-               $ip = wfGetIP();
-               if ( $wgEnableSorbs && !in_array( $ip, $wgProxyWhitelist ) &&
-                 $wgUser->inSorbsBlacklist( $ip ) )
-               {
-                       $this->mainLoginForm( wfMsg( 'sorbs_create_account_reason' ) . ' (' . htmlspecialchars( $ip ) . ')' );
-                       return;
-               }
-
-               # Now create a dummy user ($u) and check if it is valid
-               $name = trim( $this->mName );
-               $u = User::newFromName( $name, 'creatable' );
-               if ( is_null( $u ) ) {
-                       $this->mainLoginForm( wfMsg( 'noname' ) );
-                       return false;
-               }
-
-               if ( 0 != $u->idForName() ) {
-                       $this->mainLoginForm( wfMsg( 'userexists' ) );
-                       return false;
-               }
-
-               if ( 0 != strcmp( $this->mPassword, $this->mRetype ) ) {
-                       $this->mainLoginForm( wfMsg( 'badretype' ) );
-                       return false;
-               }
-
-               # check for minimal password length
-               if ( !$u->isValidPassword( $this->mPassword ) ) {
-                       if ( !$this->mCreateaccountMail ) {
-                               $this->mainLoginForm( wfMsgExt( 'passwordtooshort', array( 'parsemag' ), $wgMinimalPasswordLength ) );
-                               return false;
-                       } else {
-                               # do not force a password for account creation by email
-                               # set invalid password, it will be replaced later by a random generated password
-                               $this->mPassword = null;
-                       }
-               }
-
-               # if you need a confirmed email address to edit, then obviously you
-               # need an email address.
-               if ( $wgEmailConfirmToEdit && empty( $this->mEmail ) ) {
-                       $this->mainLoginForm( wfMsg( 'noemailtitle' ) );
-                       return false;
-               }
-
-               if( !empty( $this->mEmail ) && !User::isValidEmailAddr( $this->mEmail ) ) {
-                       $this->mainLoginForm( wfMsg( 'invalidemailaddress' ) );
-                       return false;
-               }
-
-               # Set some additional data so the AbortNewAccount hook can be used for
-               # more than just username validation
-               $u->setEmail( $this->mEmail );
-               $u->setRealName( $this->mRealName );
-
-               $abortError = '';
-               if( !wfRunHooks( 'AbortNewAccount', array( $u, &$abortError ) ) ) {
-                       // Hook point to add extra creation throttles and blocks
-                       wfDebug( "LoginForm::addNewAccountInternal: a hook blocked creation\n" );
-                       $this->mainLoginForm( $abortError );
-                       return false;
-               }
-
-               if ( $wgAccountCreationThrottle && $wgUser->isPingLimitable() ) {
-                       $key = wfMemcKey( 'acctcreate', 'ip', $ip );
-                       $value = $wgMemc->get( $key );
-                       if ( !$value ) {
-                               $wgMemc->set( $key, 0, 86400 );
-                       }
-                       if ( $value >= $wgAccountCreationThrottle ) {
-                               $this->throttleHit( $wgAccountCreationThrottle );
-                               return false;
-                       }
-                       $wgMemc->incr( $key );
-               }
-
-               if( !$wgAuth->addUser( $u, $this->mPassword, $this->mEmail, $this->mRealName ) ) {
-                       $this->mainLoginForm( wfMsg( 'externaldberror' ) );
-                       return false;
-               }
-
-               return $this->initUser( $u, false );
+       public function doesWrites() {
+               return true;
        }
 
-       /**
-        * Actually add a user to the database.
-        * Give it a User object that has been initialised with a name.
-        *
-        * @param $u User object.
-        * @param $autocreate boolean -- true if this is an autocreation via auth plugin
-        * @return User object.
-        * @private
-        */
-       function initUser( $u, $autocreate ) {
-               global $wgAuth;
-
-               $u->addToDatabase();
-
-               if ( $wgAuth->allowPasswordChange() ) {
-                       $u->setPassword( $this->mPassword );
-               }
-
-               $u->setEmail( $this->mEmail );
-               $u->setRealName( $this->mRealName );
-               $u->setToken();
-
-               $wgAuth->initUser( $u, $autocreate );
-
-               $u->setOption( 'rememberpassword', $this->mRemember ? 1 : 0 );
-               $u->saveSettings();
-
-               # Update user count
-               $ssUpdate = new SiteStatsUpdate( 0, 0, 0, 0, 1 );
-               $ssUpdate->doUpdate();
-
-               return $u;
+       protected function getLoginSecurityLevel() {
+               return false;
        }
 
-       /**
-        * Internally authenticate the login request.
-        *
-        * This may create a local account as a side effect if the
-        * authentication plugin allows transparent local account
-        * creation.
-        *
-        * @public
-        */
-       function authenticateUserData() {
-               global $wgUser, $wgAuth;
-               if ( '' == $this->mName ) {
-                       return self::NO_NAME;
-               }
-               
-               global $wgPasswordAttemptThrottle;
-
-               $throttleCount=0;
-               if ( is_array($wgPasswordAttemptThrottle) ) {
-                       $throttleKey = wfMemcKey( 'password-throttle', wfGetIP(), md5( $this->mName ) );
-                       $count = $wgPasswordAttemptThrottle['count'];
-                       $period = $wgPasswordAttemptThrottle['seconds'];
-                       
-                       global $wgMemc;
-                       $throttleCount = $wgMemc->get($throttleKey);
-                       if ( !$throttleCount ) {
-                               $wgMemc->add( $throttleKey, 1, $period ); // start counter
-                       } else if ( $throttleCount < $count ) {
-                               $wgMemc->incr($throttleKey);
-                       } else if ( $throttleCount >= $count ) {
-                               return self::THROTTLED;
-                       }
-               }
-
-               // Load $wgUser now, and check to see if we're logging in as the same
-               // name. This is necessary because loading $wgUser (say by calling
-               // getName()) calls the UserLoadFromSession hook, which potentially
-               // creates the user in the database. Until we load $wgUser, checking
-               // for user existence using User::newFromName($name)->getId() below
-               // will effectively be using stale data.
-               if ( $wgUser->getName() === $this->mName ) {
-                       wfDebug( __METHOD__.": already logged in as {$this->mName}\n" );
-                       return self::SUCCESS;
-               }
-               $u = User::newFromName( $this->mName );
-               if( is_null( $u ) || !User::isUsableName( $u->getName() ) ) {
-                       return self::ILLEGAL;
-               }
-
-               $isAutoCreated = false;
-               if ( 0 == $u->getID() ) {
-                       $status = $this->attemptAutoCreate( $u );
-                       if ( $status !== self::SUCCESS ) {
-                               return $status;
-                       } else {
-                               $isAutoCreated = true;
-                       }
-               } else {
-                       $u->load();
-               }
-
-               // Give general extensions, such as a captcha, a chance to abort logins
-               $abort = self::ABORTED;
-               if( !wfRunHooks( 'AbortLogin', array( $u, $this->mPassword, &$abort ) ) ) {
-                       return $abort;
-               }
-
-               if (!$u->checkPassword( $this->mPassword )) {
-                       if( $u->checkTemporaryPassword( $this->mPassword ) ) {
-                               // The e-mailed temporary password should not be used for actu-
-                               // al logins; that's a very sloppy habit, and insecure if an
-                               // attacker has a few seconds to click "search" on someone's o-
-                               // pen mail reader.
-                               //
-                               // Allow it to be used only to reset the password a single time
-                               // to a new value, which won't be in the user's e-mail ar-
-                               // chives.
-                               //
-                               // For backwards compatibility, we'll still recognize it at the
-                               // login form to minimize surprises for people who have been
-                               // logging in with a temporary password for some time.
-                               //
-                               // As a side-effect, we can authenticate the user's e-mail ad-
-                               // dress if it's not already done, since the temporary password
-                               // was sent via e-mail.
-                               if( !$u->isEmailConfirmed() ) {
-                                       $u->confirmEmail();
-                                       $u->saveSettings();
-                               }
-
-                               // At this point we just return an appropriate code/ indicating
-                               // that the UI should show a password reset form; bot inter-
-                               // faces etc will probably just fail cleanly here.
-                               $retval = self::RESET_PASS;
-                       } else {
-                               $retval = '' == $this->mPassword ? self::EMPTY_PASS : self::WRONG_PASS;
-                       }
-               } else {
-                       $wgAuth->updateUser( $u );
-                       $wgUser = $u;
-
-                       // Please reset throttle for successful logins, thanks!
-                       if($throttleCount) {
-                               $wgMemc->delete($throttleKey);
-                       }
-
-                       if ( $isAutoCreated ) {
-                               // Must be run after $wgUser is set, for correct new user log
-                               wfRunHooks( 'AuthPluginAutoCreate', array( $wgUser ) );
-                       }
-
-                       $retval = self::SUCCESS;
-               }
-               wfRunHooks( 'LoginAuthenticateAudit', array( $u, $this->mPassword, $retval ) );
-               return $retval;
+       protected function getDefaultAction( $subPage ) {
+               return AuthManager::ACTION_LOGIN;
        }
 
-       /**
-        * Attempt to automatically create a user on login. Only succeeds if there
-        * is an external authentication method which allows it.
-        * @return integer Status code
-        */
-       function attemptAutoCreate( $user ) {
-               global $wgAuth, $wgUser;
-               /**
-                * If the external authentication plugin allows it, automatically cre-
-                * ate a new account for users that are externally defined but have not
-                * yet logged in.
-                */
-               if ( !$wgAuth->autoCreate() ) {
-                       return self::NOT_EXISTS;
-               }
-               if ( !$wgAuth->userExists( $user->getName() ) ) {
-                       wfDebug( __METHOD__.": user does not exist\n" );
-                       return self::NOT_EXISTS;
-               }
-               if ( !$wgAuth->authenticate( $user->getName(), $this->mPassword ) ) {
-                       wfDebug( __METHOD__.": \$wgAuth->authenticate() returned false, aborting\n" );
-                       return self::WRONG_PLUGIN_PASS;
-               }
-               if ( $wgUser->isBlockedFromCreateAccount() ) {
-                       wfDebug( __METHOD__.": user is blocked from account creation\n" );
-                       return self::CREATE_BLOCKED;
-               }
-
-               wfDebug( __METHOD__.": creating account\n" );
-               $user = $this->initUser( $user, true );
-               return self::SUCCESS;
+       public function getDescription() {
+               return $this->msg( 'login' )->text();
        }
 
-       function processLogin() {
-               global $wgUser, $wgAuth;
-
-               switch ($this->authenticateUserData())
-               {
-                       case self::SUCCESS:
-                               # We've verified now, update the real record
-                               if( (bool)$this->mRemember != (bool)$wgUser->getOption( 'rememberpassword' ) ) {
-                                       $wgUser->setOption( 'rememberpassword', $this->mRemember ? 1 : 0 );
-                                       $wgUser->saveSettings();
-                               } else {
-                                       $wgUser->invalidateCache();
-                               }
-                               $wgUser->setCookies();
-
-                               // Reset the throttle
-                               $key = wfMemcKey( 'password-throttle', wfGetIP(), md5( $this->mName ) );
-                               global $wgMemc;
-                               $wgMemc->delete( $key );
-
-                               if( $this->hasSessionCookie() || $this->mSkipCookieCheck ) {
-                                       /* Replace the language object to provide user interface in
-                                        * correct language immediately on this first page load.
-                                        */
-                                       global $wgLang, $wgRequest;
-                                       $code = $wgRequest->getVal( 'uselang', $wgUser->getOption( 'language' ) );
-                                       $wgLang = Language::factory( $code );
-                                       return $this->successfulLogin();
-                               } else {
-                                       return $this->cookieRedirectCheck( 'login' );
-                               }
-                               break;
-
-                       case self::NO_NAME:
-                       case self::ILLEGAL:
-                               $this->mainLoginForm( wfMsg( 'noname' ) );
-                               break;
-                       case self::WRONG_PLUGIN_PASS:
-                               $this->mainLoginForm( wfMsg( 'wrongpassword' ) );
-                               break;
-                       case self::NOT_EXISTS:
-                               if( $wgUser->isAllowed( 'createaccount' ) ){
-                                       $this->mainLoginForm( wfMsgWikiHtml( 'nosuchuser', htmlspecialchars( $this->mName ) ) );
-                               } else {
-                                       $this->mainLoginForm( wfMsg( 'nosuchusershort', htmlspecialchars( $this->mName ) ) );
-                               }
-                               break;
-                       case self::WRONG_PASS:
-                               $this->mainLoginForm( wfMsg( 'wrongpassword' ) );
-                               break;
-                       case self::EMPTY_PASS:
-                               $this->mainLoginForm( wfMsg( 'wrongpasswordempty' ) );
-                               break;
-                       case self::RESET_PASS:
-                               $this->resetLoginForm( wfMsg( 'resetpass_announce' ) );
-                               break;
-                       case self::CREATE_BLOCKED:
-                               $this->userBlockedMessage();
-                               break;
-                       case self::THROTTLED:
-                               $this->mainLoginForm( wfMsg( 'login-throttled' ) );
-                               break;
-                       default:
-                               throw new MWException( "Unhandled case value" );
+       public function setHeaders() {
+               // override the page title if we are doing a forced reauthentication
+               parent::setHeaders();
+               if ( $this->securityLevel && $this->getUser()->isLoggedIn() ) {
+                       $this->getOutput()->setPageTitle( $this->msg( 'login-security' ) );
                }
        }
 
-       function resetLoginForm( $error ) {
-               global $wgOut;
-               $wgOut->addHTML( Xml::element('p', array( 'class' => 'error' ), $error ) );
-               $reset = new SpecialResetpass();
-               $reset->execute( null );
+       protected function isSignup() {
+               return false;
        }
 
-       /**
-        * @private
-        */
-       function mailPassword() {
-               global $wgUser, $wgOut, $wgAuth;
-               
-               if ( wfReadOnly() ) {
-                       $wgOut->readOnlyPage();
+       protected function beforeExecute( $subPage ) {
+               if ( $subPage === 'signup' || $this->getRequest()->getText( 'type' ) === 'signup' ) {
+                       // B/C for old account creation URLs
+                       $title = SpecialPage::getTitleFor( 'CreateAccount' );
+                       $query = array_diff_key( $this->getRequest()->getValues(),
+                               array_fill_keys( [ 'type', 'title' ], true ) );
+                       $url = $title->getFullURL( $query, false, PROTO_CURRENT );
+                       $this->getOutput()->redirect( $url );
                        return false;
                }
-               
-               if( !$wgAuth->allowPasswordChange() ) {
-                       $this->mainLoginForm( wfMsg( 'resetpass_forbidden' ) );
-                       return;
-               }
-
-               # Check against blocked IPs
-               # fixme -- should we not?
-               if( $wgUser->isBlocked() ) {
-                       $this->mainLoginForm( wfMsg( 'blocked-mailpassword' ) );
-                       return;
-               }
-
-               # Check against the rate limiter
-               if( $wgUser->pingLimiter( 'mailpassword' ) ) {
-                       $wgOut->rateLimited();
-                       return;
-               }
-
-               if ( '' == $this->mName ) {
-                       $this->mainLoginForm( wfMsg( 'noname' ) );
-                       return;
-               }
-               $u = User::newFromName( $this->mName );
-               if( is_null( $u ) ) {
-                       $this->mainLoginForm( wfMsg( 'noname' ) );
-                       return;
-               }
-               if ( 0 == $u->getID() ) {
-                       $this->mainLoginForm( wfMsgWikiHtml( 'nosuchuser', htmlspecialchars( $u->getName() ) ) );
-                       return;
-               }
-
-               # Check against password throttle
-               if ( $u->isPasswordReminderThrottled() ) {
-                       global $wgPasswordReminderResendTime;
-                       # Round the time in hours to 3 d.p., in case someone is specifying
-                       # minutes or seconds.
-                       $this->mainLoginForm( wfMsgExt( 'throttled-mailpassword', array( 'parsemag' ),
-                               round( $wgPasswordReminderResendTime, 3 ) ) );
-                       return;
-               }
-
-               $result = $this->mailPasswordInternal( $u, true, 'passwordremindertitle', 'passwordremindertext' );
-               if( WikiError::isError( $result ) ) {
-                       $this->mainLoginForm( wfMsg( 'mailerror', $result->getMessage() ) );
-               } else {
-                       $this->mainLoginForm( wfMsg( 'passwordsent', $u->getName() ), 'success' );
-               }
+               return parent::beforeExecute( $subPage );
        }
 
-
-       /**
-        * @param object user
-        * @param bool throttle
-        * @param string message name of email title
-        * @param string message name of email text
-        * @return mixed true on success, WikiError on failure
-        * @private
-        */
-       function mailPasswordInternal( $u, $throttle = true, $emailTitle = 'passwordremindertitle', $emailText = 'passwordremindertext' ) {
-               global $wgServer, $wgScript, $wgUser, $wgNewPasswordExpiry;
-
-               if ( '' == $u->getEmail() ) {
-                       return new WikiError( wfMsg( 'noemail', $u->getName() ) );
-               }
-               $ip = wfGetIP();
-               if( !$ip ) {
-                       return new WikiError( wfMsg( 'badipaddress' ) );
-               }
-               
-               wfRunHooks( 'User::mailPasswordInternal', array(&$wgUser, &$ip, &$u) );
-
-               $np = $u->randomPassword();
-               $u->setNewpassword( $np, $throttle );
-               $u->saveSettings();
-
-               $m = wfMsgExt( $emailText, array( 'parsemag' ), $ip, $u->getName(), $np,
-                               $wgServer . $wgScript, round( $wgNewPasswordExpiry / 86400 ) );
-               $result = $u->sendMail( wfMsg( $emailTitle ), $m );
-
-               return $result;
-       }
-
-
        /**
         * Run any hooks registered for logins, then HTTP redirect to
         * $this->mReturnTo (or Main Page if that's undefined).  Formerly we had a
@@ -694,325 +93,70 @@ class LoginForm {
         * wherever you logged in from.  It should be clear that the action was
         * successful, given the lack of error messages plus the appearance of your
         * name in the upper right.
-        *
-        * @private
-        */
-       function successfulLogin() {
-               global $wgUser, $wgOut;
-
-               # Run any hooks; display injected HTML if any, else redirect
-               $injected_html = '';
-               wfRunHooks('UserLoginComplete', array(&$wgUser, &$injected_html));
-
-               if( $injected_html !== '' ) {
-                       $this->displaySuccessfulLogin( 'loginsuccess', $injected_html );
-               } else {
-                       $titleObj = Title::newFromText( $this->mReturnTo );
-                       if ( !$titleObj instanceof Title ) {
-                               $titleObj = Title::newMainPage();
-                       }
-
-                       $wgOut->redirect( $titleObj->getFullURL() );
-               }
-       }
-
-       /**
-        * Run any hooks registered for logins, then display a message welcoming
-        * the user.
-        *
-        * @private
+        * @param bool $direct True if the action was successful just now; false if that happened
+        *    pre-redirection (so this handler was called already)
+        * @param StatusValue|null $extraMessages
         */
-       function successfulCreation() {
-               global $wgUser, $wgOut;
-
-               # Run any hooks; display injected HTML
-               $injected_html = '';
-               wfRunHooks('UserLoginComplete', array(&$wgUser, &$injected_html));
-
-               $this->displaySuccessfulLogin( 'welcomecreation', $injected_html );
-       }
-
-       /**
-        * Display a "login successful" page.
-        */
-       private function displaySuccessfulLogin( $msgname, $injected_html ) {
-               global $wgOut, $wgUser;
-
-               $wgOut->setPageTitle( wfMsg( 'loginsuccesstitle' ) );
-               $wgOut->setRobotPolicy( 'noindex,nofollow' );
-               $wgOut->setArticleRelated( false );
-               $wgOut->addWikiMsg( $msgname, $wgUser->getName() );
-               $wgOut->addHTML( $injected_html );
+       protected function successfulAction( $direct = false, $extraMessages = null ) {
+               global $wgSecureLogin;
 
-               if ( !empty( $this->mReturnTo ) ) {
-                       $wgOut->returnToMain( null, $this->mReturnTo );
-               } else {
-                       $wgOut->returnToMain( null );
-               }
-       }
-
-       /** */
-       function userNotPrivilegedMessage($errors) {
-               global $wgOut;
-
-               $wgOut->setPageTitle( wfMsg( 'permissionserrors' ) );
-               $wgOut->setRobotPolicy( 'noindex,nofollow' );
-               $wgOut->setArticleRelated( false );
-
-               $wgOut->addWikitext( $wgOut->formatPermissionsErrorMessage( $errors, 'createaccount' ) );
-               // Stuff that might want to be added at the end. For example, instruc-
-               // tions if blocked.
-               $wgOut->addWikiMsg( 'cantcreateaccount-nonblock-text' );
-
-               $wgOut->returnToMain( false );
-       }
-
-       /** */
-       function userBlockedMessage() {
-               global $wgOut, $wgUser;
+               $user = $this->targetUser ?: $this->getUser();
+               $session = $this->getRequest()->getSession();
 
-               # Let's be nice about this, it's likely that this feature will be used
-               # for blocking large numbers of innocent people, e.g. range blocks on
-               # schools. Don't blame it on the user. There's a small chance that it
-               # really is the user's fault, i.e. the username is blocked and they
-               # haven't bothered to log out before trying to create an account to
-               # evade it, but we'll leave that to their guilty conscience to figure
-               # out.
+               if ( $direct ) {
+                       $user->touch();
 
-               $wgOut->setPageTitle( wfMsg( 'cantcreateaccounttitle' ) );
-               $wgOut->setRobotPolicy( 'noindex,nofollow' );
-               $wgOut->setArticleRelated( false );
+                       $this->clearToken();
 
-               $ip = wfGetIP();
-               $blocker = User::whoIs( $wgUser->mBlock->mBy );
-               $block_reason = $wgUser->mBlock->mReason;
-
-               if ( strval( $block_reason ) === '' ) {
-                       $block_reason = wfMsg( 'blockednoreason' );
-               }
-               $wgOut->addWikiMsg( 'cantcreateaccount-text', $ip, $block_reason, $blocker );
-               $wgOut->returnToMain( false );
-       }
-
-       /**
-        * @private
-        */
-       function mainLoginForm( $msg, $msgtype = 'error' ) {
-               global $wgUser, $wgOut, $wgAllowRealName, $wgEnableEmail;
-               global $wgCookiePrefix, $wgLoginLanguageSelector;
-               global $wgAuth, $wgEmailConfirmToEdit, $wgCookieExpiration;
-               
-               $titleObj = SpecialPage::getTitleFor( 'Userlogin' );
-               
-               if ( $this->mType == 'signup' ) {
-                       // Block signup here if in readonly. Keeps user from 
-                       // going through the process (filling out data, etc) 
-                       // and being informed later.
-                       if ( wfReadOnly() ) {
-                               $wgOut->readOnlyPage();
-                               return;
-                       } elseif ( $wgUser->isBlockedFromCreateAccount() ) {
-                               $this->userBlockedMessage();
-                               return;
-                       } elseif ( count( $permErrors = $titleObj->getUserPermissionsErrors( 'createaccount', $wgUser, true ) )>0 ) {
-                               $wgOut->showPermissionsErrorPage( $permErrors, 'createaccount' );
-                               return;
+                       if ( $user->requiresHTTPS() ) {
+                               $this->mStickHTTPS = true;
                        }
-               }
+                       $session->setForceHTTPS( $wgSecureLogin && $this->mStickHTTPS );
 
-               if ( '' == $this->mName ) {
-                       if ( $wgUser->isLoggedIn() ) {
-                               $this->mName = $wgUser->getName();
-                       } else {
-                               $this->mName = isset( $_COOKIE[$wgCookiePrefix.'UserName'] ) ? $_COOKIE[$wgCookiePrefix.'UserName'] : null;
+                       // If the user does not have a session cookie at this point, they probably need to
+                       // do something to their browser.
+                       if ( !$this->hasSessionCookie() ) {
+                               $this->mainLoginForm( [ /*?*/ ], $session->getProvider()->whyNoSession() );
+                               // TODO something more specific? This used to use nocookieslogin
+                               return;
                        }
                }
 
-               $titleObj = SpecialPage::getTitleFor( 'Userlogin' );
-
-               if ( $this->mType == 'signup' ) {
-                       $template = new UsercreateTemplate();
-                       $q = 'action=submitlogin&type=signup';
-                       $linkq = 'type=login';
-                       $linkmsg = 'gotaccount';
-               } else {
-                       $template = new UserloginTemplate();
-                       $q = 'action=submitlogin&type=login';
-                       $linkq = 'type=signup';
-                       $linkmsg = 'nologin';
-               }
-
-               if ( !empty( $this->mReturnTo ) ) {
-                       $returnto = '&returnto=' . wfUrlencode( $this->mReturnTo );
-                       $q .= $returnto;
-                       $linkq .= $returnto;
-               }
-
-               # Pass any language selection on to the mode switch link
-               if( $wgLoginLanguageSelector && $this->mLanguage )
-                       $linkq .= '&uselang=' . $this->mLanguage;
-
-               $link = '<a href="' . htmlspecialchars ( $titleObj->getLocalUrl( $linkq ) ) . '">';
-               $link .= wfMsgHtml( $linkmsg . 'link' ); # Calling either 'gotaccountlink' or 'nologinlink'
-               $link .= '</a>';
-
-               # Don't show a "create account" link if the user can't
-               if( $this->showCreateOrLoginLink( $wgUser ) )
-                       $template->set( 'link', wfMsgHtml( $linkmsg, $link ) );
-               else
-                       $template->set( 'link', '' );
-
-               $template->set( 'header', '' );
-               $template->set( 'name', $this->mName );
-               $template->set( 'password', $this->mPassword );
-               $template->set( 'retype', $this->mRetype );
-               $template->set( 'email', $this->mEmail );
-               $template->set( 'realname', $this->mRealName );
-               $template->set( 'domain', $this->mDomain );
-
-               $template->set( 'action', $titleObj->getLocalUrl( $q ) );
-               $template->set( 'message', $msg );
-               $template->set( 'messagetype', $msgtype );
-               $template->set( 'createemail', $wgEnableEmail && $wgUser->isLoggedIn() );
-               $template->set( 'userealname', $wgAllowRealName );
-               $template->set( 'useemail', $wgEnableEmail );
-               $template->set( 'emailrequired', $wgEmailConfirmToEdit );
-               $template->set( 'canreset', $wgAuth->allowPasswordChange() );
-               $template->set( 'canremember', ( $wgCookieExpiration > 0 ) );
-               $template->set( 'remember', $wgUser->getOption( 'rememberpassword' ) or $this->mRemember  );
-
-               # Prepare language selection links as needed
-               if( $wgLoginLanguageSelector ) {
-                       $template->set( 'languages', $this->makeLanguageSelector() );
-                       if( $this->mLanguage )
-                               $template->set( 'uselang', $this->mLanguage );
-               }
-
-               // Give authentication and captcha plugins a chance to modify the form
-               $wgAuth->modifyUITemplate( $template );
-               if ( $this->mType == 'signup' ) {
-                       wfRunHooks( 'UserCreateForm', array( &$template ) );
-               } else {
-                       wfRunHooks( 'UserLoginForm', array( &$template ) );
-               }
-
-               $wgOut->setPageTitle( wfMsg( 'userlogin' ) );
-               $wgOut->setRobotPolicy( 'noindex,nofollow' );
-               $wgOut->setArticleRelated( false );
-               $wgOut->disallowUserJs();  // just in case...
-               $wgOut->addTemplate( $template );
-       }
+               # Run any hooks; display injected HTML if any, else redirect
+               $injected_html = '';
+               Hooks::run( 'UserLoginComplete', [ &$user, &$injected_html, $direct ] );
 
-       /**
-        * @private
-        */
-       function showCreateOrLoginLink( &$user ) {
-               if( $this->mType == 'signup' ) {
-                       return( true );
-               } elseif( $user->isAllowed( 'createaccount' ) ) {
-                       return( true );
+               if ( $injected_html !== '' || $extraMessages ) {
+                       $this->showSuccessPage( 'success', $this->msg( 'loginsuccesstitle' ),
+                               'loginsuccess', $injected_html, $extraMessages );
                } else {
-                       return( false );
+                       $helper = new LoginHelper( $this->getContext() );
+                       $helper->showReturnToPage( 'successredirect', $this->mReturnTo, $this->mReturnToQuery,
+                               $this->mStickHTTPS );
                }
        }
 
-       /**
-        * Check if a session cookie is present.
-        *
-        * This will not pick up a cookie set during _this_ request, but is meant
-        * to ensure that the client is returning the cookie which was set on a
-        * previous pass through the system.
-        *
-        * @private
-        */
-       function hasSessionCookie() {
-               global $wgDisableCookieCheck, $wgRequest;
-               return $wgDisableCookieCheck ? true : $wgRequest->checkSessionCookie();
-       }
-
-       /**
-        * @private
-        */
-       function cookieRedirectCheck( $type ) {
-               global $wgOut;
-
-               $titleObj = SpecialPage::getTitleFor( 'Userlogin' );
-               $query = array( 'wpCookieCheck' => $type );
-               if ( $this->mReturnTo ) $query['returnto'] = $this->mReturnTo;
-               $check = $titleObj->getFullURL( $query );
-
-               return $wgOut->redirect( $check );
+       protected function getToken() {
+               return $this->getRequest()->getSession()->getToken( '', 'login' );
        }
 
-       /**
-        * @private
-        */
-       function onCookieRedirectCheck( $type ) {
-               global $wgUser;
-
-               if ( !$this->hasSessionCookie() ) {
-                       if ( $type == 'new' ) {
-                               return $this->mainLoginForm( wfMsgExt( 'nocookiesnew', array( 'parseinline' ) ) );
-                       } else if ( $type == 'login' ) {
-                               return $this->mainLoginForm( wfMsgExt( 'nocookieslogin', array( 'parseinline' ) ) );
-                       } else {
-                               # shouldn't happen
-                               return $this->mainLoginForm( wfMsg( 'error' ) );
-                       }
-               } else {
-                       return $this->successfulLogin();
-               }
+       protected function clearToken() {
+               return $this->getRequest()->getSession()->resetToken( 'login' );
        }
 
-       /**
-        * @private
-        */
-       function throttleHit( $limit ) {
-               $this->mainLoginForm( wfMsgExt( 'acct_creation_throttle_hit', array( 'parseinline' ), $limit ) );
+       protected function getTokenName() {
+               return 'wpLoginToken';
        }
 
-       /**
-        * Produce a bar of links which allow the user to select another language
-        * during login/registration but retain "returnto"
-        *
-        * @return string
-        */
-       function makeLanguageSelector() {
-               global $wgLang;
-
-               $msg = wfMsgForContent( 'loginlanguagelinks' );
-               if( $msg != '' && !wfEmptyMsg( 'loginlanguagelinks', $msg ) ) {
-                       $langs = explode( "\n", $msg );
-                       $links = array();
-                       foreach( $langs as $lang ) {
-                               $lang = trim( $lang, '* ' );
-                               $parts = explode( '|', $lang );
-                               if (count($parts) >= 2) {
-                                       $links[] = $this->makeLanguageSelectorLink( $parts[0], $parts[1] );
-                               }
-                       }
-                       return count( $links ) > 0 ? wfMsgHtml( 'loginlanguagelabel', $wgLang->pipeList( $links ) ) : '';
-               } else {
-                       return '';
-               }
+       protected function getGroupName() {
+               return 'login';
        }
 
-       /**
-        * Create a language selector link for a particular language
-        * Links back to this page preserving type and returnto
-        *
-        * @param $text Link text
-        * @param $lang Language code
-        */
-       function makeLanguageSelectorLink( $text, $lang ) {
-               global $wgUser;
-               $self = SpecialPage::getTitleFor( 'Userlogin' );
-               $attr[] = 'uselang=' . $lang;
-               if( $this->mType == 'signup' )
-                       $attr[] = 'type=signup';
-               if( $this->mReturnTo )
-                       $attr[] = 'returnto=' . $this->mReturnTo;
-               $skin = $wgUser->getSkin();
-               return $skin->makeKnownLinkObj( $self, htmlspecialchars( $text ), implode( '&', $attr ) );
+       protected function logAuthResult( $success, $status = null ) {
+               LoggerFactory::getInstance( 'authevents' )->info( 'Login attempt', [
+                       'event' => 'login',
+                       'successful' => $success,
+                       'status' => $status,
+               ] );
        }
 }