1 files changed, 17 insertions, 0 deletions
diff --git a/apps/federatedfilesharing/lib/ocm/CloudFederationProviderFiles.php b/apps/federatedfilesharing/lib/ocm/CloudFederationProviderFiles.php
index 6ca0282d81f..c51c5d43589 100644
--- a/apps/federatedfilesharing/lib/ocm/CloudFederationProviderFiles.php
+++ b/apps/federatedfilesharing/lib/ocm/CloudFederationProviderFiles.php
@@ -50,6 +50,7 @@ use OCP\IUserManager;
 use OCP\Notification\IManager as INotificationManager;
 use OCP\Share;
 use OCP\Share\Exceptions\ShareNotFound;
+use OCP\Share\IManager;
 use OCP\Share\IShare;
 use OCP\Util;
 
@@ -70,6 +71,9 @@ class CloudFederationProviderFiles implements ICloudFederationProvider {
 	/** @var IUserManager */
 	private $userManager;
 
+	/** @var IManager */
+	private $shareManager;
+
 	/** @var ICloudIdManager */
 	private $cloudIdManager;
 
@@ -102,6 +106,7 @@ class CloudFederationProviderFiles implements ICloudFederationProvider {
 	 * @param AddressHandler $addressHandler
 	 * @param ILogger $logger
 	 * @param IUserManager $userManager
+	 * @param IManager $shareManager
 	 * @param ICloudIdManager $cloudIdManager
 	 * @param IActivityManager $activityManager
 	 * @param INotificationManager $notificationManager
@@ -116,6 +121,7 @@ class CloudFederationProviderFiles implements ICloudFederationProvider {
 								AddressHandler $addressHandler,
 								ILogger $logger,
 								IUserManager $userManager,
+								IManager $shareManager,
 								ICloudIdManager $cloudIdManager,
 								IActivityManager $activityManager,
 								INotificationManager $notificationManager,
@@ -130,6 +136,7 @@ class CloudFederationProviderFiles implements ICloudFederationProvider {
 		$this->addressHandler = $addressHandler;
 		$this->logger = $logger;
 		$this->userManager = $userManager;
+		$this->shareManager = $shareManager;
 		$this->cloudIdManager = $cloudIdManager;
 		$this->activityManager = $activityManager;
 		$this->notificationManager = $notificationManager;
@@ -805,6 +812,16 @@ class CloudFederationProviderFiles implements ICloudFederationProvider {
 			return true;
 		}
 
+		if ($share->getShareType() === IShare::TYPE_CIRCLE) {
+			try {
+				$knownShare = $this->shareManager->getShareByToken($token);
+				if ($knownShare->getId() === $share->getId()) {
+					return true;
+				}
+			} catch (ShareNotFound $e) {
+			}
+		}
+
 		throw new AuthenticationFailedException();
 	}