nextcloud / server

core/Controller/LoginController.php

Indentation +374 added lines, -374 removed lines

@@ -59,378 +59,378 @@
 
 class LoginController extends Controller {
 
-	const LOGIN_MSG_INVALIDPASSWORD = 'invalidpassword';
-	const LOGIN_MSG_USERDISABLED = 'userdisabled';
-
-	/** @var IUserManager */
-	private $userManager;
-	/** @var IConfig */
-	private $config;
-	/** @var ISession */
-	private $session;
-	/** @var IUserSession|Session */
-	private $userSession;
-	/** @var IURLGenerator */
-	private $urlGenerator;
-	/** @var ILogger */
-	private $logger;
-	/** @var Manager */
-	private $twoFactorManager;
-	/** @var Defaults */
-	private $defaults;
-	/** @var Throttler */
-	private $throttler;
-
-	/**
-	 * @param string $appName
-	 * @param IRequest $request
-	 * @param IUserManager $userManager
-	 * @param IConfig $config
-	 * @param ISession $session
-	 * @param IUserSession $userSession
-	 * @param IURLGenerator $urlGenerator
-	 * @param ILogger $logger
-	 * @param Manager $twoFactorManager
-	 * @param Defaults $defaults
-	 * @param Throttler $throttler
-	 */
-	public function __construct($appName,
-								IRequest $request,
-								IUserManager $userManager,
-								IConfig $config,
-								ISession $session,
-								IUserSession $userSession,
-								IURLGenerator $urlGenerator,
-								ILogger $logger,
-								Manager $twoFactorManager,
-								Defaults $defaults,
-								Throttler $throttler) {
-		parent::__construct($appName, $request);
-		$this->userManager = $userManager;
-		$this->config = $config;
-		$this->session = $session;
-		$this->userSession = $userSession;
-		$this->urlGenerator = $urlGenerator;
-		$this->logger = $logger;
-		$this->twoFactorManager = $twoFactorManager;
-		$this->defaults = $defaults;
-		$this->throttler = $throttler;
-	}
-
-	/**
-	 * @NoAdminRequired
-	 * @UseSession
-	 *
-	 * @return RedirectResponse
-	 */
-	public function logout() {
-		$loginToken = $this->request->getCookie('nc_token');
-		if (!is_null($loginToken)) {
-			$this->config->deleteUserValue($this->userSession->getUser()->getUID(), 'login_token', $loginToken);
-		}
-		$this->userSession->logout();
-
-		$response = new RedirectResponse($this->urlGenerator->linkToRouteAbsolute(
-			'core.login.showLoginForm',
-			['clear' => true] // this param the the code in login.js may be removed when the "Clear-Site-Data" is working in the browsers
-		));
-		$response->addHeader('Clear-Site-Data', '"cache", "storage", "executionContexts"');
-		return $response;
-	}
-
-	/**
-	 * @PublicPage
-	 * @NoCSRFRequired
-	 * @UseSession
-	 *
-	 * @param string $user
-	 * @param string $redirect_url
-	 *
-	 * @return TemplateResponse|RedirectResponse
-	 */
-	public function showLoginForm(string $user = null, string $redirect_url = null): Http\Response {
-
-		if ($this->userSession->isLoggedIn()) {
-			return new RedirectResponse(OC_Util::getDefaultPageUrl());
-		}
-
-		$parameters = array();
-		$loginMessages = $this->session->get('loginMessages');
-		$errors = [];
-		$messages = [];
-		if (is_array($loginMessages)) {
-			list($errors, $messages) = $loginMessages;
-		}
-		$this->session->remove('loginMessages');
-		foreach ($errors as $value) {
-			$parameters[$value] = true;
-		}
-
-		$parameters['messages'] = $messages;
-		if ($user !== null && $user !== '') {
-			$parameters['loginName'] = $user;
-			$parameters['user_autofocus'] = false;
-		} else {
-			$parameters['loginName'] = '';
-			$parameters['user_autofocus'] = true;
-		}
-
-		$autocomplete = $this->config->getSystemValue('login_form_autocomplete', true);
-		if ($autocomplete){
-			$parameters['login_form_autocomplete'] = 'on';
-		} else {
-			$parameters['login_form_autocomplete'] = 'off';
-		}
-
-		if (!empty($redirect_url)) {
-			$parameters['redirect_url'] = $redirect_url;
-		}
-
-		$parameters = $this->setPasswordResetParameters($user, $parameters);
-		$parameters['alt_login'] = OC_App::getAlternativeLogIns();
-
-		if ($user !== null && $user !== '') {
-			$parameters['loginName'] = $user;
-			$parameters['user_autofocus'] = false;
-		} else {
-			$parameters['loginName'] = '';
-			$parameters['user_autofocus'] = true;
-		}
-
-		$parameters['throttle_delay'] = $this->throttler->getDelay($this->request->getRemoteAddress());
-
-		// OpenGraph Support: http://ogp.me/
-		Util::addHeader('meta', ['property' => 'og:title', 'content' => Util::sanitizeHTML($this->defaults->getName())]);
-		Util::addHeader('meta', ['property' => 'og:description', 'content' => Util::sanitizeHTML($this->defaults->getSlogan())]);
-		Util::addHeader('meta', ['property' => 'og:site_name', 'content' => Util::sanitizeHTML($this->defaults->getName())]);
-		Util::addHeader('meta', ['property' => 'og:url', 'content' => $this->urlGenerator->getAbsoluteURL('/')]);
-		Util::addHeader('meta', ['property' => 'og:type', 'content' => 'website']);
-		Util::addHeader('meta', ['property' => 'og:image', 'content' => $this->urlGenerator->getAbsoluteURL($this->urlGenerator->imagePath('core', 'favicon-touch.png'))]);
-
-		return new TemplateResponse(
-			$this->appName, 'login', $parameters, 'guest'
-		);
-	}
-
-	/**
-	 * Sets the password reset params.
-	 *
-	 * Users may not change their passwords if:
-	 * - The account is disabled
-	 * - The backend doesn't support password resets
-	 * - The password reset function is disabled
-	 *
-	 * @param string $user
-	 * @param array $parameters
-	 * @return array
-	 */
-	private function setPasswordResetParameters(
-		string $user = null, array $parameters): array {
-		if ($user !== null && $user !== '') {
-			$userObj = $this->userManager->get($user);
-		} else {
-			$userObj = null;
-		}
-
-		$parameters['resetPasswordLink'] = $this->config
-			->getSystemValue('lost_password_link', '');
-
-		if ($parameters['resetPasswordLink'] === 'disabled') {
-			$parameters['canResetPassword'] = false;
-		} else if (!$parameters['resetPasswordLink'] && $userObj !== null) {
-			$parameters['canResetPassword'] = $userObj->canChangePassword();
-		} else if ($userObj !== null && $userObj->isEnabled() === false) {
-			$parameters['canResetPassword'] = false;
-		} else {
-			$parameters['canResetPassword'] = true;
-		}
-
-		return $parameters;
-	}
-
-	/**
-	 * @param string $redirectUrl
-	 * @return RedirectResponse
-	 */
-	private function generateRedirect($redirectUrl) {
-		if (!is_null($redirectUrl) && $this->userSession->isLoggedIn()) {
-			$location = $this->urlGenerator->getAbsoluteURL(urldecode($redirectUrl));
-			// Deny the redirect if the URL contains a @
-			// This prevents unvalidated redirects like ?redirect_url=:user@domain.com
-			if (strpos($location, '@') === false) {
-				return new RedirectResponse($location);
-			}
-		}
-		return new RedirectResponse(OC_Util::getDefaultPageUrl());
-	}
-
-	/**
-	 * @PublicPage
-	 * @UseSession
-	 * @NoCSRFRequired
-	 * @BruteForceProtection(action=login)
-	 *
-	 * @param string $user
-	 * @param string $password
-	 * @param string $redirect_url
-	 * @param boolean $remember_login
-	 * @param string $timezone
-	 * @param string $timezone_offset
-	 * @return RedirectResponse
-	 */
-	public function tryLogin($user, $password, $redirect_url, $remember_login = true, $timezone = '', $timezone_offset = '') {
-		if(!is_string($user)) {
-			throw new \InvalidArgumentException('Username must be string');
-		}
-
-		// If the user is already logged in and the CSRF check does not pass then
-		// simply redirect the user to the correct page as required. This is the
-		// case when an user has already logged-in, in another tab.
-		if(!$this->request->passesCSRFCheck()) {
-			return $this->generateRedirect($redirect_url);
-		}
-
-		if ($this->userManager instanceof PublicEmitter) {
-			$this->userManager->emit('\OC\User', 'preLogin', array($user, $password));
-		}
-
-		$originalUser = $user;
-
-		$userObj = $this->userManager->get($user);
-
-		if ($userObj !== null && $userObj->isEnabled() === false) {
-			$this->logger->warning('Login failed: \''. $user . '\' disabled' .
-				' (Remote IP: \''. $this->request->getRemoteAddress(). '\')',
-				['app' => 'core']);
-			return $this->createLoginFailedResponse($user, $originalUser,
-				$redirect_url, self::LOGIN_MSG_USERDISABLED);
-		}
-
-		// TODO: Add all the insane error handling
-		/* @var $loginResult IUser */
-		$loginResult = $this->userManager->checkPasswordNoLogging($user, $password);
-		if ($loginResult === false) {
-			$users = $this->userManager->getByEmail($user);
-			// we only allow login by email if unique
-			if (count($users) === 1) {
-				$previousUser = $user;
-				$user = $users[0]->getUID();
-				if($user !== $previousUser) {
-					$loginResult = $this->userManager->checkPassword($user, $password);
-				}
-			}
-		}
-
-		if ($loginResult === false) {
-			$this->logger->warning('Login failed: \''. $user .
-				'\' (Remote IP: \''. $this->request->getRemoteAddress(). '\')',
-				['app' => 'core']);
-			return $this->createLoginFailedResponse($user, $originalUser,
-				$redirect_url, self::LOGIN_MSG_INVALIDPASSWORD);
-		}
-
-		// TODO: remove password checks from above and let the user session handle failures
-		// requires https://github.com/owncloud/core/pull/24616
-		$this->userSession->completeLogin($loginResult, ['loginName' => $user, 'password' => $password]);
-
-		$tokenType = IToken::REMEMBER;
-		if ((int)$this->config->getSystemValue('remember_login_cookie_lifetime', 60*60*24*15) === 0) {
-			$remember_login = false;
-			$tokenType = IToken::DO_NOT_REMEMBER;
-		}
-
-		$this->userSession->createSessionToken($this->request, $loginResult->getUID(), $user, $password, $tokenType);
-		$this->userSession->updateTokens($loginResult->getUID(), $password);
-
-		// User has successfully logged in, now remove the password reset link, when it is available
-		$this->config->deleteUserValue($loginResult->getUID(), 'core', 'lostpassword');
-
-		$this->session->set('last-password-confirm', $loginResult->getLastLogin());
-
-		if ($timezone_offset !== '') {
-			$this->config->setUserValue($loginResult->getUID(), 'core', 'timezone', $timezone);
-			$this->session->set('timezone', $timezone_offset);
-		}
-
-		if ($this->twoFactorManager->isTwoFactorAuthenticated($loginResult)) {
-			$this->twoFactorManager->prepareTwoFactorLogin($loginResult, $remember_login);
-
-			$providers = $this->twoFactorManager->getProviderSet($loginResult)->getPrimaryProviders();
-			if (count($providers) === 1) {
-				// Single provider, hence we can redirect to that provider's challenge page directly
-				/* @var $provider IProvider */
-				$provider = array_pop($providers);
-				$url = 'core.TwoFactorChallenge.showChallenge';
-				$urlParams = [
-					'challengeProviderId' => $provider->getId(),
-				];
-			} else {
-				$url = 'core.TwoFactorChallenge.selectChallenge';
-				$urlParams = [];
-			}
-
-			if (!is_null($redirect_url)) {
-				$urlParams['redirect_url'] = $redirect_url;
-			}
-
-			return new RedirectResponse($this->urlGenerator->linkToRoute($url, $urlParams));
-		}
-
-		if ($remember_login) {
-			$this->userSession->createRememberMeToken($loginResult);
-		}
-
-		return $this->generateRedirect($redirect_url);
-	}
-
-	/**
-	 * Creates a login failed response.
-	 *
-	 * @param string $user
-	 * @param string $originalUser
-	 * @param string $redirect_url
-	 * @param string $loginMessage
-	 * @return RedirectResponse
-	 */
-	private function createLoginFailedResponse(
-		$user, $originalUser, $redirect_url, string $loginMessage) {
-		// Read current user and append if possible we need to
-		// return the unmodified user otherwise we will leak the login name
-		$args = !is_null($user) ? ['user' => $originalUser] : [];
-		if (!is_null($redirect_url)) {
-			$args['redirect_url'] = $redirect_url;
-		}
-		$response = new RedirectResponse(
-			$this->urlGenerator->linkToRoute('core.login.showLoginForm', $args)
-		);
-		$response->throttle(['user' => substr($user, 0, 64)]);
-		$this->session->set('loginMessages', [
-			[$loginMessage], []
-		]);
-		return $response;
-	}
-
-	/**
-	 * @NoAdminRequired
-	 * @UseSession
-	 * @BruteForceProtection(action=sudo)
-	 *
-	 * @license GNU AGPL version 3 or any later version
-	 *
-	 * @param string $password
-	 * @return DataResponse
-	 */
-	public function confirmPassword($password) {
-		$loginName = $this->userSession->getLoginName();
-		$loginResult = $this->userManager->checkPassword($loginName, $password);
-		if ($loginResult === false) {
-			$response = new DataResponse([], Http::STATUS_FORBIDDEN);
-			$response->throttle();
-			return $response;
-		}
-
-		$confirmTimestamp = time();
-		$this->session->set('last-password-confirm', $confirmTimestamp);
-		return new DataResponse(['lastLogin' => $confirmTimestamp], Http::STATUS_OK);
-	}
+    const LOGIN_MSG_INVALIDPASSWORD = 'invalidpassword';
+    const LOGIN_MSG_USERDISABLED = 'userdisabled';
+
+    /** @var IUserManager */
+    private $userManager;
+    /** @var IConfig */
+    private $config;
+    /** @var ISession */
+    private $session;
+    /** @var IUserSession|Session */
+    private $userSession;
+    /** @var IURLGenerator */
+    private $urlGenerator;
+    /** @var ILogger */
+    private $logger;
+    /** @var Manager */
+    private $twoFactorManager;
+    /** @var Defaults */
+    private $defaults;
+    /** @var Throttler */
+    private $throttler;
+
+    /**
+     * @param string $appName
+     * @param IRequest $request
+     * @param IUserManager $userManager
+     * @param IConfig $config
+     * @param ISession $session
+     * @param IUserSession $userSession
+     * @param IURLGenerator $urlGenerator
+     * @param ILogger $logger
+     * @param Manager $twoFactorManager
+     * @param Defaults $defaults
+     * @param Throttler $throttler
+     */
+    public function __construct($appName,
+                                IRequest $request,
+                                IUserManager $userManager,
+                                IConfig $config,
+                                ISession $session,
+                                IUserSession $userSession,
+                                IURLGenerator $urlGenerator,
+                                ILogger $logger,
+                                Manager $twoFactorManager,
+                                Defaults $defaults,
+                                Throttler $throttler) {
+        parent::__construct($appName, $request);
+        $this->userManager = $userManager;
+        $this->config = $config;
+        $this->session = $session;
+        $this->userSession = $userSession;
+        $this->urlGenerator = $urlGenerator;
+        $this->logger = $logger;
+        $this->twoFactorManager = $twoFactorManager;
+        $this->defaults = $defaults;
+        $this->throttler = $throttler;
+    }
+
+    /**
+     * @NoAdminRequired
+     * @UseSession
+     *
+     * @return RedirectResponse
+     */
+    public function logout() {
+        $loginToken = $this->request->getCookie('nc_token');
+        if (!is_null($loginToken)) {
+            $this->config->deleteUserValue($this->userSession->getUser()->getUID(), 'login_token', $loginToken);
+        }
+        $this->userSession->logout();
+
+        $response = new RedirectResponse($this->urlGenerator->linkToRouteAbsolute(
+            'core.login.showLoginForm',
+            ['clear' => true] // this param the the code in login.js may be removed when the "Clear-Site-Data" is working in the browsers
+        ));
+        $response->addHeader('Clear-Site-Data', '"cache", "storage", "executionContexts"');
+        return $response;
+    }
+
+    /**
+     * @PublicPage
+     * @NoCSRFRequired
+     * @UseSession
+     *
+     * @param string $user
+     * @param string $redirect_url
+     *
+     * @return TemplateResponse|RedirectResponse
+     */
+    public function showLoginForm(string $user = null, string $redirect_url = null): Http\Response {
+
+        if ($this->userSession->isLoggedIn()) {
+            return new RedirectResponse(OC_Util::getDefaultPageUrl());
+        }
+
+        $parameters = array();
+        $loginMessages = $this->session->get('loginMessages');
+        $errors = [];
+        $messages = [];
+        if (is_array($loginMessages)) {
+            list($errors, $messages) = $loginMessages;
+        }
+        $this->session->remove('loginMessages');
+        foreach ($errors as $value) {
+            $parameters[$value] = true;
+        }
+
+        $parameters['messages'] = $messages;
+        if ($user !== null && $user !== '') {
+            $parameters['loginName'] = $user;
+            $parameters['user_autofocus'] = false;
+        } else {
+            $parameters['loginName'] = '';
+            $parameters['user_autofocus'] = true;
+        }
+
+        $autocomplete = $this->config->getSystemValue('login_form_autocomplete', true);
+        if ($autocomplete){
+            $parameters['login_form_autocomplete'] = 'on';
+        } else {
+            $parameters['login_form_autocomplete'] = 'off';
+        }
+
+        if (!empty($redirect_url)) {
+            $parameters['redirect_url'] = $redirect_url;
+        }
+
+        $parameters = $this->setPasswordResetParameters($user, $parameters);
+        $parameters['alt_login'] = OC_App::getAlternativeLogIns();
+
+        if ($user !== null && $user !== '') {
+            $parameters['loginName'] = $user;
+            $parameters['user_autofocus'] = false;
+        } else {
+            $parameters['loginName'] = '';
+            $parameters['user_autofocus'] = true;
+        }
+
+        $parameters['throttle_delay'] = $this->throttler->getDelay($this->request->getRemoteAddress());
+
+        // OpenGraph Support: http://ogp.me/
+        Util::addHeader('meta', ['property' => 'og:title', 'content' => Util::sanitizeHTML($this->defaults->getName())]);
+        Util::addHeader('meta', ['property' => 'og:description', 'content' => Util::sanitizeHTML($this->defaults->getSlogan())]);
+        Util::addHeader('meta', ['property' => 'og:site_name', 'content' => Util::sanitizeHTML($this->defaults->getName())]);
+        Util::addHeader('meta', ['property' => 'og:url', 'content' => $this->urlGenerator->getAbsoluteURL('/')]);
+        Util::addHeader('meta', ['property' => 'og:type', 'content' => 'website']);
+        Util::addHeader('meta', ['property' => 'og:image', 'content' => $this->urlGenerator->getAbsoluteURL($this->urlGenerator->imagePath('core', 'favicon-touch.png'))]);
+
+        return new TemplateResponse(
+            $this->appName, 'login', $parameters, 'guest'
+        );
+    }
+
+    /**
+     * Sets the password reset params.
+     *
+     * Users may not change their passwords if:
+     * - The account is disabled
+     * - The backend doesn't support password resets
+     * - The password reset function is disabled
+     *
+     * @param string $user
+     * @param array $parameters
+     * @return array
+     */
+    private function setPasswordResetParameters(
+        string $user = null, array $parameters): array {
+        if ($user !== null && $user !== '') {
+            $userObj = $this->userManager->get($user);
+        } else {
+            $userObj = null;
+        }
+
+        $parameters['resetPasswordLink'] = $this->config
+            ->getSystemValue('lost_password_link', '');
+
+        if ($parameters['resetPasswordLink'] === 'disabled') {
+            $parameters['canResetPassword'] = false;
+        } else if (!$parameters['resetPasswordLink'] && $userObj !== null) {
+            $parameters['canResetPassword'] = $userObj->canChangePassword();
+        } else if ($userObj !== null && $userObj->isEnabled() === false) {
+            $parameters['canResetPassword'] = false;
+        } else {
+            $parameters['canResetPassword'] = true;
+        }
+
+        return $parameters;
+    }
+
+    /**
+     * @param string $redirectUrl
+     * @return RedirectResponse
+     */
+    private function generateRedirect($redirectUrl) {
+        if (!is_null($redirectUrl) && $this->userSession->isLoggedIn()) {
+            $location = $this->urlGenerator->getAbsoluteURL(urldecode($redirectUrl));
+            // Deny the redirect if the URL contains a @
+            // This prevents unvalidated redirects like ?redirect_url=:user@domain.com
+            if (strpos($location, '@') === false) {
+                return new RedirectResponse($location);
+            }
+        }
+        return new RedirectResponse(OC_Util::getDefaultPageUrl());
+    }
+
+    /**
+     * @PublicPage
+     * @UseSession
+     * @NoCSRFRequired
+     * @BruteForceProtection(action=login)
+     *
+     * @param string $user
+     * @param string $password
+     * @param string $redirect_url
+     * @param boolean $remember_login
+     * @param string $timezone
+     * @param string $timezone_offset
+     * @return RedirectResponse
+     */
+    public function tryLogin($user, $password, $redirect_url, $remember_login = true, $timezone = '', $timezone_offset = '') {
+        if(!is_string($user)) {
+            throw new \InvalidArgumentException('Username must be string');
+        }
+
+        // If the user is already logged in and the CSRF check does not pass then
+        // simply redirect the user to the correct page as required. This is the
+        // case when an user has already logged-in, in another tab.
+        if(!$this->request->passesCSRFCheck()) {
+            return $this->generateRedirect($redirect_url);
+        }
+
+        if ($this->userManager instanceof PublicEmitter) {
+            $this->userManager->emit('\OC\User', 'preLogin', array($user, $password));
+        }
+
+        $originalUser = $user;
+
+        $userObj = $this->userManager->get($user);
+
+        if ($userObj !== null && $userObj->isEnabled() === false) {
+            $this->logger->warning('Login failed: \''. $user . '\' disabled' .
+                ' (Remote IP: \''. $this->request->getRemoteAddress(). '\')',
+                ['app' => 'core']);
+            return $this->createLoginFailedResponse($user, $originalUser,
+                $redirect_url, self::LOGIN_MSG_USERDISABLED);
+        }
+
+        // TODO: Add all the insane error handling
+        /* @var $loginResult IUser */
+        $loginResult = $this->userManager->checkPasswordNoLogging($user, $password);
+        if ($loginResult === false) {
+            $users = $this->userManager->getByEmail($user);
+            // we only allow login by email if unique
+            if (count($users) === 1) {
+                $previousUser = $user;
+                $user = $users[0]->getUID();
+                if($user !== $previousUser) {
+                    $loginResult = $this->userManager->checkPassword($user, $password);
+                }
+            }
+        }
+
+        if ($loginResult === false) {
+            $this->logger->warning('Login failed: \''. $user .
+                '\' (Remote IP: \''. $this->request->getRemoteAddress(). '\')',
+                ['app' => 'core']);
+            return $this->createLoginFailedResponse($user, $originalUser,
+                $redirect_url, self::LOGIN_MSG_INVALIDPASSWORD);
+        }
+
+        // TODO: remove password checks from above and let the user session handle failures
+        // requires https://github.com/owncloud/core/pull/24616
+        $this->userSession->completeLogin($loginResult, ['loginName' => $user, 'password' => $password]);
+
+        $tokenType = IToken::REMEMBER;
+        if ((int)$this->config->getSystemValue('remember_login_cookie_lifetime', 60*60*24*15) === 0) {
+            $remember_login = false;
+            $tokenType = IToken::DO_NOT_REMEMBER;
+        }
+
+        $this->userSession->createSessionToken($this->request, $loginResult->getUID(), $user, $password, $tokenType);
+        $this->userSession->updateTokens($loginResult->getUID(), $password);
+
+        // User has successfully logged in, now remove the password reset link, when it is available
+        $this->config->deleteUserValue($loginResult->getUID(), 'core', 'lostpassword');
+
+        $this->session->set('last-password-confirm', $loginResult->getLastLogin());
+
+        if ($timezone_offset !== '') {
+            $this->config->setUserValue($loginResult->getUID(), 'core', 'timezone', $timezone);
+            $this->session->set('timezone', $timezone_offset);
+        }
+
+        if ($this->twoFactorManager->isTwoFactorAuthenticated($loginResult)) {
+            $this->twoFactorManager->prepareTwoFactorLogin($loginResult, $remember_login);
+
+            $providers = $this->twoFactorManager->getProviderSet($loginResult)->getPrimaryProviders();
+            if (count($providers) === 1) {
+                // Single provider, hence we can redirect to that provider's challenge page directly
+                /* @var $provider IProvider */
+                $provider = array_pop($providers);
+                $url = 'core.TwoFactorChallenge.showChallenge';
+                $urlParams = [
+                    'challengeProviderId' => $provider->getId(),
+                ];
+            } else {
+                $url = 'core.TwoFactorChallenge.selectChallenge';
+                $urlParams = [];
+            }
+
+            if (!is_null($redirect_url)) {
+                $urlParams['redirect_url'] = $redirect_url;
+            }
+
+            return new RedirectResponse($this->urlGenerator->linkToRoute($url, $urlParams));
+        }
+
+        if ($remember_login) {
+            $this->userSession->createRememberMeToken($loginResult);
+        }
+
+        return $this->generateRedirect($redirect_url);
+    }
+
+    /**
+     * Creates a login failed response.
+     *
+     * @param string $user
+     * @param string $originalUser
+     * @param string $redirect_url
+     * @param string $loginMessage
+     * @return RedirectResponse
+     */
+    private function createLoginFailedResponse(
+        $user, $originalUser, $redirect_url, string $loginMessage) {
+        // Read current user and append if possible we need to
+        // return the unmodified user otherwise we will leak the login name
+        $args = !is_null($user) ? ['user' => $originalUser] : [];
+        if (!is_null($redirect_url)) {
+            $args['redirect_url'] = $redirect_url;
+        }
+        $response = new RedirectResponse(
+            $this->urlGenerator->linkToRoute('core.login.showLoginForm', $args)
+        );
+        $response->throttle(['user' => substr($user, 0, 64)]);
+        $this->session->set('loginMessages', [
+            [$loginMessage], []
+        ]);
+        return $response;
+    }
+
+    /**
+     * @NoAdminRequired
+     * @UseSession
+     * @BruteForceProtection(action=sudo)
+     *
+     * @license GNU AGPL version 3 or any later version
+     *
+     * @param string $password
+     * @return DataResponse
+     */
+    public function confirmPassword($password) {
+        $loginName = $this->userSession->getLoginName();
+        $loginResult = $this->userManager->checkPassword($loginName, $password);
+        if ($loginResult === false) {
+            $response = new DataResponse([], Http::STATUS_FORBIDDEN);
+            $response->throttle();
+            return $response;
+        }
+
+        $confirmTimestamp = time();
+        $this->session->set('last-password-confirm', $confirmTimestamp);
+        return new DataResponse(['lastLogin' => $confirmTimestamp], Http::STATUS_OK);
+    }
 }