Fix state propragation of the backup codes provider

Starting with Nextcloud 14, the server knows the enabled/disabled
state of 2fa providers. While it will query that information if it's
unknown (on first use), it won't notice any changes. Thus, providers
have to propagate that information themselves.

Ref https://github.com/nextcloud/twofactor_totp/pull/263
Ref https://github.com/nextcloud/twofactor_u2f/pull/210

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

1 files changed, 12 insertions, 40 deletions

diff --git a/apps/twofactor_backupcodes/lib/Service/BackupCodeStorage.php b/apps/twofactor_backupcodes/lib/Service/BackupCodeStorage.php
index 2fb5fe8a6c0..74a032dcc0a 100644
--- a/apps/twofactor_backupcodes/lib/Service/BackupCodeStorage.php
+++ b/apps/twofactor_backupcodes/lib/Service/BackupCodeStorage.php
@@ -25,11 +25,13 @@ namespace OCA\TwoFactorBackupCodes\Service;
 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;
 	}
 
 	/**
@@ -89,33 +82,12 @@ class BackupCodeStorage {
 			$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 @@ class BackupCodeStorage {
 		$total = count($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 @@ class BackupCodeStorage {
 		$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;