Merge pull request #19845 from nextcloud/enh/events/loginFailedEvent

Event for failed login attempts

8 files changed, 199 insertions, 4 deletions

diff --git a/lib/composer/composer/autoload_classmap.php b/lib/composer/composer/autoload_classmap.php
index 388c7906eb8..78e461132a0 100644
--- a/lib/composer/composer/autoload_classmap.php
+++ b/lib/composer/composer/autoload_classmap.php
@@ -74,6 +74,7 @@ return array(
     'OCP\\App\\AppPathNotFoundException' => $baseDir . '/lib/public/App/AppPathNotFoundException.php',
     'OCP\\App\\IAppManager' => $baseDir . '/lib/public/App/IAppManager.php',
     'OCP\\App\\ManagerEvent' => $baseDir . '/lib/public/App/ManagerEvent.php',
+    'OCP\\Authentication\\Events\\LoginFailedEvent' => $baseDir . '/lib/public/Authentication/Events/LoginFailedEvent.php',
     'OCP\\Authentication\\Exceptions\\CredentialsUnavailableException' => $baseDir . '/lib/public/Authentication/Exceptions/CredentialsUnavailableException.php',
     'OCP\\Authentication\\Exceptions\\PasswordUnavailableException' => $baseDir . '/lib/public/Authentication/Exceptions/PasswordUnavailableException.php',
     'OCP\\Authentication\\IApacheBackend' => $baseDir . '/lib/public/Authentication/IApacheBackend.php',
@@ -592,6 +593,7 @@ return array(
     'OC\\Archive\\TAR' => $baseDir . '/lib/private/Archive/TAR.php',
     'OC\\Archive\\ZIP' => $baseDir . '/lib/private/Archive/ZIP.php',
     'OC\\Authentication\\Events\\ARemoteWipeEvent' => $baseDir . '/lib/private/Authentication/Events/ARemoteWipeEvent.php',
+    'OC\\Authentication\\Events\\LoginFailed' => $baseDir . '/lib/private/Authentication/Events/LoginFailed.php',
     'OC\\Authentication\\Events\\RemoteWipeFinished' => $baseDir . '/lib/private/Authentication/Events/RemoteWipeFinished.php',
     'OC\\Authentication\\Events\\RemoteWipeStarted' => $baseDir . '/lib/private/Authentication/Events/RemoteWipeStarted.php',
     'OC\\Authentication\\Exceptions\\ExpiredTokenException' => $baseDir . '/lib/private/Authentication/Exceptions/ExpiredTokenException.php',
@@ -604,6 +606,7 @@ return array(
     'OC\\Authentication\\Exceptions\\TwoFactorAuthRequiredException' => $baseDir . '/lib/private/Authentication/Exceptions/TwoFactorAuthRequiredException.php',
     'OC\\Authentication\\Exceptions\\UserAlreadyLoggedInException' => $baseDir . '/lib/private/Authentication/Exceptions/UserAlreadyLoggedInException.php',
     'OC\\Authentication\\Exceptions\\WipeTokenException' => $baseDir . '/lib/private/Authentication/Exceptions/WipeTokenException.php',
+    'OC\\Authentication\\Listeners\\LoginFailedListener' => $baseDir . '/lib/private/Authentication/Listeners/LoginFailedListener.php',
     'OC\\Authentication\\Listeners\\RemoteWipeActivityListener' => $baseDir . '/lib/private/Authentication/Listeners/RemoteWipeActivityListener.php',
     'OC\\Authentication\\Listeners\\RemoteWipeEmailListener' => $baseDir . '/lib/private/Authentication/Listeners/RemoteWipeEmailListener.php',
     'OC\\Authentication\\Listeners\\RemoteWipeNotificationsListener' => $baseDir . '/lib/private/Authentication/Listeners/RemoteWipeNotificationsListener.php',
diff --git a/lib/composer/composer/autoload_static.php b/lib/composer/composer/autoload_static.php
index cfc6d9842df..6d6a2055fcc 100644
--- a/lib/composer/composer/autoload_static.php
+++ b/lib/composer/composer/autoload_static.php
@@ -103,6 +103,7 @@ class ComposerStaticInit53792487c5a8370acc0b06b1a864ff4c
         'OCP\\App\\AppPathNotFoundException' => __DIR__ . '/../../..' . '/lib/public/App/AppPathNotFoundException.php',
         'OCP\\App\\IAppManager' => __DIR__ . '/../../..' . '/lib/public/App/IAppManager.php',
         'OCP\\App\\ManagerEvent' => __DIR__ . '/../../..' . '/lib/public/App/ManagerEvent.php',
+        'OCP\\Authentication\\Events\\LoginFailedEvent' => __DIR__ . '/../../..' . '/lib/public/Authentication/Events/LoginFailedEvent.php',
         'OCP\\Authentication\\Exceptions\\CredentialsUnavailableException' => __DIR__ . '/../../..' . '/lib/public/Authentication/Exceptions/CredentialsUnavailableException.php',
         'OCP\\Authentication\\Exceptions\\PasswordUnavailableException' => __DIR__ . '/../../..' . '/lib/public/Authentication/Exceptions/PasswordUnavailableException.php',
         'OCP\\Authentication\\IApacheBackend' => __DIR__ . '/../../..' . '/lib/public/Authentication/IApacheBackend.php',
@@ -621,6 +622,7 @@ class ComposerStaticInit53792487c5a8370acc0b06b1a864ff4c
         'OC\\Archive\\TAR' => __DIR__ . '/../../..' . '/lib/private/Archive/TAR.php',
         'OC\\Archive\\ZIP' => __DIR__ . '/../../..' . '/lib/private/Archive/ZIP.php',
         'OC\\Authentication\\Events\\ARemoteWipeEvent' => __DIR__ . '/../../..' . '/lib/private/Authentication/Events/ARemoteWipeEvent.php',
+        'OC\\Authentication\\Events\\LoginFailed' => __DIR__ . '/../../..' . '/lib/private/Authentication/Events/LoginFailed.php',
         'OC\\Authentication\\Events\\RemoteWipeFinished' => __DIR__ . '/../../..' . '/lib/private/Authentication/Events/RemoteWipeFinished.php',
         'OC\\Authentication\\Events\\RemoteWipeStarted' => __DIR__ . '/../../..' . '/lib/private/Authentication/Events/RemoteWipeStarted.php',
         'OC\\Authentication\\Exceptions\\ExpiredTokenException' => __DIR__ . '/../../..' . '/lib/private/Authentication/Exceptions/ExpiredTokenException.php',
@@ -633,6 +635,7 @@ class ComposerStaticInit53792487c5a8370acc0b06b1a864ff4c
         'OC\\Authentication\\Exceptions\\TwoFactorAuthRequiredException' => __DIR__ . '/../../..' . '/lib/private/Authentication/Exceptions/TwoFactorAuthRequiredException.php',
         'OC\\Authentication\\Exceptions\\UserAlreadyLoggedInException' => __DIR__ . '/../../..' . '/lib/private/Authentication/Exceptions/UserAlreadyLoggedInException.php',
         'OC\\Authentication\\Exceptions\\WipeTokenException' => __DIR__ . '/../../..' . '/lib/private/Authentication/Exceptions/WipeTokenException.php',
+        'OC\\Authentication\\Listeners\\LoginFailedListener' => __DIR__ . '/../../..' . '/lib/private/Authentication/Listeners/LoginFailedListener.php',
         'OC\\Authentication\\Listeners\\RemoteWipeActivityListener' => __DIR__ . '/../../..' . '/lib/private/Authentication/Listeners/RemoteWipeActivityListener.php',
         'OC\\Authentication\\Listeners\\RemoteWipeEmailListener' => __DIR__ . '/../../..' . '/lib/private/Authentication/Listeners/RemoteWipeEmailListener.php',
         'OC\\Authentication\\Listeners\\RemoteWipeNotificationsListener' => __DIR__ . '/../../..' . '/lib/private/Authentication/Listeners/RemoteWipeNotificationsListener.php',
diff --git a/lib/private/Authentication/Events/LoginFailed.php b/lib/private/Authentication/Events/LoginFailed.php
new file mode 100644
index 00000000000..cc5a547fdef
--- /dev/null
+++ b/lib/private/Authentication/Events/LoginFailed.php
@@ -0,0 +1,43 @@
+<?php
+declare(strict_types=1);
+/**
+ * @copyright Copyright (c) 2020, Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @author Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OC\Authentication\Events;
+
+use OCP\EventDispatcher\Event;
+
+class LoginFailed extends Event {
+
+	/** @var string */
+	private $loginName;
+
+	public function __construct(string $loginName) {
+		parent::__construct();
+
+		$this->loginName = $loginName;
+	}
+
+	public function getLoginName(): string {
+		return $this->loginName;
+	}
+}
diff --git a/lib/private/Authentication/Listeners/LoginFailedListener.php b/lib/private/Authentication/Listeners/LoginFailedListener.php
new file mode 100644
index 00000000000..d4f46d9547f
--- /dev/null
+++ b/lib/private/Authentication/Listeners/LoginFailedListener.php
@@ -0,0 +1,64 @@
+<?php
+declare(strict_types=1);
+/**
+ * @copyright Copyright (c) 2020, Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @author Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OC\Authentication\Listeners;
+
+use OC\Authentication\Events\LoginFailed;
+use OCP\Authentication\Events\LoginFailedEvent;
+use OCP\EventDispatcher\Event;
+use OCP\EventDispatcher\IEventDispatcher;
+use OCP\EventDispatcher\IEventListener;
+use OCP\IUserManager;
+use OCP\Util;
+
+class LoginFailedListener implements IEventListener {
+
+	/** @var IEventDispatcher */
+	private $dispatcher;
+
+	/** @var IUserManager */
+	private $userManager;
+
+	public function __construct(IEventDispatcher $dispatcher, IUserManager $userManager) {
+		$this->dispatcher = $dispatcher;
+		$this->userManager = $userManager;
+	}
+
+	public function handle(Event $event): void {
+		if (!($event instanceof LoginFailed)) {
+			return;
+		}
+
+		$uid = $event->getLoginName();
+		Util::emitHook(
+			'\OCA\Files_Sharing\API\Server2Server',
+			'preLoginNameUsedAsUserName',
+			['uid' => &$uid]
+		);
+		if($this->userManager->userExists($uid)) {
+			$this->dispatcher->dispatchTyped(new LoginFailedEvent($uid));
+		}
+	}
+
+}
diff --git a/lib/private/Authentication/Login/LoggedInCheckCommand.php b/lib/private/Authentication/Login/LoggedInCheckCommand.php
index 9c1e45e0db7..78f27bfa937 100644
--- a/lib/private/Authentication/Login/LoggedInCheckCommand.php
+++ b/lib/private/Authentication/Login/LoggedInCheckCommand.php
@@ -25,24 +25,36 @@ declare(strict_types=1);
 
 namespace OC\Authentication\Login;
 
+use OC\Authentication\Events\LoginFailed;
 use OC\Core\Controller\LoginController;
+use OCP\Authentication\Events\LoginFailedEvent;
+use OCP\EventDispatcher\IEventDispatcher;
 use OCP\ILogger;
+use OCP\IUserManager;
+use OCP\Util;
 
 class LoggedInCheckCommand extends ALoginCommand {
 
 	/** @var ILogger */
 	private $logger;
+	/** @var IEventDispatcher */
+	private $dispatcher;
+	/** @var IUserManager */
+	private $userManager;
 
-	public function __construct(ILogger $logger) {
+	public function __construct(ILogger $logger, IEventDispatcher $dispatcher) {
 		$this->logger = $logger;
+		$this->dispatcher = $dispatcher;
 	}
 
 	public function process(LoginData $loginData): LoginResult {
 		if ($loginData->getUser() === false) {
-			$username = $loginData->getUsername();
+			$loginName = $loginData->getUsername();
 			$ip = $loginData->getRequest()->getRemoteAddress();
 
-			$this->logger->warning("Login failed: $username (Remote IP: $ip)");
+			$this->logger->warning("Login failed: $loginName (Remote IP: $ip)");
+
+			$this->dispatcher->dispatchTyped(new LoginFailed($loginName));
 
 			return LoginResult::failure($loginData, LoginController::LOGIN_MSG_INVALIDPASSWORD);
 		}
diff --git a/lib/private/Server.php b/lib/private/Server.php
index 27268981c2b..b9155563c0f 100644
--- a/lib/private/Server.php
+++ b/lib/private/Server.php
@@ -62,6 +62,8 @@ use OC\App\AppStore\Fetcher\CategoryFetcher;
 use OC\AppFramework\Http\Request;
 use OC\AppFramework\Utility\SimpleContainer;
 use OC\AppFramework\Utility\TimeFactory;
+use OC\Authentication\Events\LoginFailed;
+use OC\Authentication\Listeners\LoginFailedListener;
 use OC\Authentication\LoginCredentials\Store;
 use OC\Authentication\Token\IProvider;
 use OC\Avatar\AvatarManager;
@@ -1416,6 +1418,10 @@ class Server extends ServerContainer implements IServerContainer {
 				// no avatar to remove
 			}
 		});
+
+		/** @var IEventDispatcher $eventDispatched */
+		$eventDispatched = $this->query(IEventDispatcher::class);
+		$eventDispatched->addServiceListener(LoginFailed::class, LoginFailedListener::class);
 	}
 
 	/**
diff --git a/lib/private/User/Session.php b/lib/private/User/Session.php
index 3d97ddce7f9..9129fb7054b 100644
--- a/lib/private/User/Session.php
+++ b/lib/private/User/Session.php
@@ -51,6 +51,7 @@ use OC_User;
 use OC_Util;
 use OCA\DAV\Connector\Sabre\Auth;
 use OCP\AppFramework\Utility\ITimeFactory;
+use OCP\Authentication\Events\LoginFailedEvent;
 use OCP\EventDispatcher\IEventDispatcher;
 use OCP\Files\NotPermittedException;
 use OCP\IConfig;
@@ -58,6 +59,7 @@ use OCP\ILogger;
 use OCP\IRequest;
 use OCP\ISession;
 use OCP\IUser;
+use OCP\IUserManager;
 use OCP\IUserSession;
 use OCP\Lockdown\ILockdownManager;
 use OCP\Security\ISecureRandom;
@@ -137,7 +139,8 @@ class Session implements IUserSession, Emitter {
 								ISecureRandom $random,
 								ILockdownManager $lockdownManager,
 								ILogger $logger,
-								IEventDispatcher $dispatcher) {
+								IEventDispatcher $dispatcher
+	) {
 		$this->manager = $manager;
 		$this->session = $session;
 		$this->timeFactory = $timeFactory;
@@ -467,6 +470,9 @@ class Session implements IUserSession, Emitter {
 				$this->logger->warning('Login failed: \'' . $user . '\' (Remote IP: \'' . \OC::$server->getRequest()->getRemoteAddress() . '\')', ['app' => 'core']);
 
 				$throttler->registerAttempt('login', $request->getRemoteAddress(), ['user' => $user]);
+
+				$this->dispatcher->dispatchTyped(new OC\Authentication\Events\LoginFailed($user));
+
 				if ($currentDelay === 0) {
 					$throttler->sleepDelay($request->getRemoteAddress(), 'login');
 				}
diff --git a/lib/public/Authentication/Events/LoginFailedEvent.php b/lib/public/Authentication/Events/LoginFailedEvent.php
new file mode 100644
index 00000000000..15c8fb31bce
--- /dev/null
+++ b/lib/public/Authentication/Events/LoginFailedEvent.php
@@ -0,0 +1,58 @@
+<?php
+declare(strict_types=1);
+/**
+ * @copyright Copyright (c) 2020, Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @author Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCP\Authentication\Events;
+
+use OCP\EventDispatcher\Event;
+
+/**
+ * Class LoginFailedEvent
+ *
+ * @package OCP\Authentication\Events
+ *
+ * @since 19.0.0
+ */
+class LoginFailedEvent extends Event {
+
+	/** @var string */
+	private $uid;
+
+	/**
+	 * @since 19.0.0
+	 */
+	public function __construct(string $uid) {
+		parent::__construct();
+
+		$this->uid = $uid;
+	}
+
+	/**
+	 * returns the uid of the user that was tried to login against
+	 *
+	 * @since 19.0.0
+	 */
+	public function getUid(): string {
+		return $this->uid;
+	}
+}