Fix state propragation of the backup codes provider

apps/twofactor_backupcodes/composer/composer/autoload_classmap.php

@@ -11,6 +11,10 @@
     'OCA\\TwoFactorBackupCodes\\Controller\\SettingsController' => $baseDir . '/../lib/Controller/SettingsController.php',
     'OCA\\TwoFactorBackupCodes\\Db\\BackupCode' => $baseDir . '/../lib/Db/BackupCode.php',
     'OCA\\TwoFactorBackupCodes\\Db\\BackupCodeMapper' => $baseDir . '/../lib/Db/BackupCodeMapper.php',
+    'OCA\\TwoFactorBackupCodes\\Event\\CodesGenerated' => $baseDir . '/../lib/Event/CodesGenerated.php',
+    'OCA\\TwoFactorBackupCodes\\Listener\\ActivityPublisher' => $baseDir . '/../lib/Listener/ActivityPublisher.php',
+    'OCA\\TwoFactorBackupCodes\\Listener\\IListener' => $baseDir . '/../lib/Listener/IListener.php',
+    'OCA\\TwoFactorBackupCodes\\Listener\\RegistryUpdater' => $baseDir . '/../lib/Listener/RegistryUpdater.php',
     'OCA\\TwoFactorBackupCodes\\Migration\\Version1002Date20170607104347' => $baseDir . '/../lib/Migration/Version1002Date20170607104347.php',
     'OCA\\TwoFactorBackupCodes\\Migration\\Version1002Date20170607113030' => $baseDir . '/../lib/Migration/Version1002Date20170607113030.php',
     'OCA\\TwoFactorBackupCodes\\Migration\\Version1002Date20170919123342' => $baseDir . '/../lib/Migration/Version1002Date20170919123342.php',

apps/twofactor_backupcodes/composer/composer/autoload_static.php

@@ -26,6 +26,10 @@ class ComposerStaticInitTwoFactorBackupCodes
         'OCA\\TwoFactorBackupCodes\\Controller\\SettingsController' => __DIR__ . '/..' . '/../lib/Controller/SettingsController.php',
         'OCA\\TwoFactorBackupCodes\\Db\\BackupCode' => __DIR__ . '/..' . '/../lib/Db/BackupCode.php',
         'OCA\\TwoFactorBackupCodes\\Db\\BackupCodeMapper' => __DIR__ . '/..' . '/../lib/Db/BackupCodeMapper.php',
+        'OCA\\TwoFactorBackupCodes\\Event\\CodesGenerated' => __DIR__ . '/..' . '/../lib/Event/CodesGenerated.php',
+        'OCA\\TwoFactorBackupCodes\\Listener\\ActivityPublisher' => __DIR__ . '/..' . '/../lib/Listener/ActivityPublisher.php',
+        'OCA\\TwoFactorBackupCodes\\Listener\\IListener' => __DIR__ . '/..' . '/../lib/Listener/IListener.php',
+        'OCA\\TwoFactorBackupCodes\\Listener\\RegistryUpdater' => __DIR__ . '/..' . '/../lib/Listener/RegistryUpdater.php',
         'OCA\\TwoFactorBackupCodes\\Migration\\Version1002Date20170607104347' => __DIR__ . '/..' . '/../lib/Migration/Version1002Date20170607104347.php',
         'OCA\\TwoFactorBackupCodes\\Migration\\Version1002Date20170607113030' => __DIR__ . '/..' . '/../lib/Migration/Version1002Date20170607113030.php',
         'OCA\\TwoFactorBackupCodes\\Migration\\Version1002Date20170919123342' => __DIR__ . '/..' . '/../lib/Migration/Version1002Date20170919123342.php',

apps/twofactor_backupcodes/lib/AppInfo/Application.php

@@ -1,8 +1,10 @@
 <?php
+
 /**
  * @copyright Copyright (c) 2017 Joas Schilling <coding@schilljs.com>
  *
  * @author Joas Schilling <coding@schilljs.com>
+ * @author Christoph Wurst <christoph@winzerhof-wurst.at>
  *
  * @license GNU AGPL version 3 or any later version
  *
@@ -24,11 +26,16 @@
 namespace OCA\TwoFactorBackupCodes\AppInfo;
 
 use OCA\TwoFactorBackupCodes\Db\BackupCodeMapper;
+use OCA\TwoFactorBackupCodes\Event\CodesGenerated;
+use OCA\TwoFactorBackupCodes\Listener\ActivityPublisher;
+use OCA\TwoFactorBackupCodes\Listener\IListener;
+use OCA\TwoFactorBackupCodes\Listener\RegistryUpdater;
 use OCP\AppFramework\App;
 use OCP\Util;
+use Symfony\Component\EventDispatcher\EventDispatcherInterface;
 
 class Application extends App {
-	public function __construct () {
+	public function __construct() {
 		parent::__construct('twofactor_backupcodes');
 	}
 
@@ -44,6 +51,21 @@ public function register() {
 	 */
 	public function registerHooksAndEvents() {
 		Util::connectHook('OC_User', 'post_deleteUser', $this, 'deleteUser');
+
+		$container = $this->getContainer();
+		/** @var EventDispatcherInterface $eventDispatcher */
+		$eventDispatcher = $container->query(EventDispatcherInterface::class);
+		$eventDispatcher->addListener(CodesGenerated::class, function (CodesGenerated $event) use ($container) {
+			/** @var IListener[] $listeners */
+			$listeners = [
+				$container->query(ActivityPublisher::class),
+				$container->query(RegistryUpdater::class),
+			];
+
+			foreach ($listeners as $listener) {
+				$listener->handle($event);
+			}
+		});
 	}
 
 	public function deleteUser($params) {

apps/twofactor_backupcodes/lib/Event/CodesGenerated.php

@@ -0,0 +1,46 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @author Christoph Wurst <christoph@winzerhof-wurst.at>
+ *
+ * @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 OCA\TwoFactorBackupCodes\Event;
+
+use OCP\IUser;
+use Symfony\Component\EventDispatcher\Event;
+
+class CodesGenerated extends Event {
+
+	/** @var IUser */
+	private $user;
+
+	public function __construct(IUser $user) {
+		$this->user = $user;
+	}
+
+	/**
+	 * @return IUser
+	 */
+	public function getUser(): IUser {
+		return $this->user;
+	}
+
+}

apps/twofactor_backupcodes/lib/Listener/ActivityPublisher.php

@@ -0,0 +1,66 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @author Christoph Wurst <christoph@winzerhof-wurst.at>
+ *
+ * @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 OCA\TwoFactorBackupCodes\Listener;
+
+use BadMethodCallException;
+use OCA\TwoFactorBackupCodes\Event\CodesGenerated;
+use OCP\Activity\IManager;
+use OCP\ILogger;
+use Symfony\Component\EventDispatcher\Event;
+
+class ActivityPublisher implements IListener {
+
+	/** @var IManager */
+	private $activityManager;
+
+	/** @var ILogger */
+	private $logger;
+
+	public function __construct(IManager $activityManager, ILogger $logger) {
+		$this->activityManager = $activityManager;
+		$this->logger = $logger;
+	}
+
+	/**
+	 * Push an event to the user's activity stream
+	 */
+	public function handle(Event $event) {
+		if ($event instanceof CodesGenerated) {
+			$activity = $this->activityManager->generateEvent();
+			$activity->setApp('twofactor_backupcodes')
+				->setType('security')
+				->setAuthor($event->getUser()->getUID())
+				->setAffectedUser($event->getUser()->getUID())
+				->setSubject('codes_generated');
+			try {
+				$this->activityManager->publish($activity);
+			} catch (BadMethodCallException $e) {
+				$this->logger->warning('could not publish backup code creation activity', ['app' => 'twofactor_backupcodes']);
+				$this->logger->logException($e, ['app' => 'twofactor_backupcodes']);
+			}
+		}
+	}
+
+}

apps/twofactor_backupcodes/lib/Listener/IListener.php

@@ -0,0 +1,33 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @author Christoph Wurst <christoph@winzerhof-wurst.at>
+ *
+ * @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 OCA\TwoFactorBackupCodes\Listener;
+
+use Symfony\Component\EventDispatcher\Event;
+
+interface IListener {
+
+	public function handle(Event $event);
+
+}

apps/twofactor_backupcodes/lib/Listener/RegistryUpdater.php

@@ -0,0 +1,50 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @author Christoph Wurst <christoph@winzerhof-wurst.at>
+ *
+ * @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 OCA\TwoFactorBackupCodes\Listener;
+
+use OCA\TwoFactorBackupCodes\Event\CodesGenerated;
+use OCA\TwoFactorBackupCodes\Provider\BackupCodesProvider;
+use OCP\Authentication\TwoFactorAuth\IRegistry;
+use Symfony\Component\EventDispatcher\Event;
+
+class RegistryUpdater implements IListener {
+
+	/** @var IRegistry */
+	private $registry;
+
+	/** @var BackupCodesProvider */
+	private $provider;
+
+	public function __construct(IRegistry $registry, BackupCodesProvider $provider) {
+		$this->registry = $registry;
+		$this->provider = $provider;
+	}
+
+	public function handle(Event $event) {
+		if ($event instanceof CodesGenerated) {
+			$this->registry->enableProviderFor($this->provider, $event->getUser());
+		}
+	}
+}

apps/twofactor_backupcodes/lib/Service/BackupCodeStorage.php

@@ -25,11 +25,13 @@
 use BadMethodCallException;
 use OCA\TwoFactorBackupCodes\Db\BackupCode;
 use OCA\TwoFactorBackupCodes\Db\BackupCodeMapper;
+use OCA\TwoFactorBackupCodes\Event\CodesGenerated;
 use OCP\Activity\IManager;
 use OCP\ILogger;
 use OCP\IUser;
 use OCP\Security\IHasher;
 use OCP\Security\ISecureRandom;
+use Symfony\Component\EventDispatcher\EventDispatcherInterface;
 
 class BackupCodeStorage {
 
@@ -44,26 +46,17 @@ class BackupCodeStorage {
 	/** @var ISecureRandom */
 	private $random;
 
-	/** @var IManager */
-	private $activityManager;
+	/** @var EventDispatcherInterface */
+	private $eventDispatcher;
 
-	/** @var ILogger */
-	private $logger;
-
-	/**
-	 * @param BackupCodeMapper $mapper
-	 * @param ISecureRandom $random
-	 * @param IHasher $hasher
-	 * @param IManager $activityManager
-	 * @param ILogger $logger
-	 */
-	public function __construct(BackupCodeMapper $mapper, ISecureRandom $random, IHasher $hasher,
-		IManager $activityManager, ILogger $logger) {
+	public function __construct(BackupCodeMapper $mapper,
+								ISecureRandom $random,
+								IHasher $hasher,
+								EventDispatcherInterface $eventDispatcher) {
 		$this->mapper = $mapper;
 		$this->hasher = $hasher;
 		$this->random = $random;
-		$this->activityManager = $activityManager;
-		$this->logger = $logger;
+		$this->eventDispatcher = $eventDispatcher;
 	}
 
 	/**
@@ -89,32 +82,11 @@ public function createCodes(IUser $user, $number = 10) {
 			$result[] = $code;
 		}
 
-		$this->publishEvent($user, 'codes_generated');
+		$this->eventDispatcher->dispatch(CodesGenerated::class, new CodesGenerated($user));
 
 		return $result;
 	}
 
-	/**
-	 * Push an event the user's activity stream
-	 *
-	 * @param IUser $user
-	 * @param string $event
-	 */
-	private function publishEvent(IUser $user, $event) {
-		$activity = $this->activityManager->generateEvent();
-		$activity->setApp('twofactor_backupcodes')
-			->setType('security')
-			->setAuthor($user->getUID())
-			->setAffectedUser($user->getUID())
-			->setSubject($event);
-		try {
-			$this->activityManager->publish($activity);
-		} catch (BadMethodCallException $e) {
-			$this->logger->warning('could not publish backup code creation activity', ['app' => 'twofactor_backupcodes']);
-			$this->logger->logException($e, ['app' => 'twofactor_backupcodes']);
-		}
-	}
-
 	/**
 	 * @param IUser $user
 	 * @return bool
@@ -133,7 +105,7 @@ public function getBackupCodesState(IUser $user) {
 		$total = count($codes);
 		$used = 0;
 		array_walk($codes, function (BackupCode $code) use (&$used) {
-			if (1 === (int) $code->getUsed()) {
+			if (1 === (int)$code->getUsed()) {
 				$used++;
 			}
 		});
@@ -153,7 +125,7 @@ public function validateCode(IUser $user, $code) {
 		$dbCodes = $this->mapper->getBackupCodes($user);
 
 		foreach ($dbCodes as $dbCode) {
-			if (0 === (int) $dbCode->getUsed() && $this->hasher->verify($code, $dbCode->getCode())) {
+			if (0 === (int)$dbCode->getUsed() && $this->hasher->verify($code, $dbCode->getCode())) {
 				$dbCode->setUsed(1);
 				$this->mapper->update($dbCode);
 				return true;