A valid user session is required for circles.

The circles app depends on a valid userId. A public shared calender might be viewed by guests without a user session. For such requests the principal is null.

Signed-off-by: Daniel Kesselberg <mail@danielkesselberg.de>

diff --git a/apps/dav/lib/Connector/Sabre/Principal.php b/apps/dav/lib/Connector/Sabre/Principal.php
index 14bb8798630e6ab1c4a67f4eff66d43cfb029037..5dedb0a7d7b94d9db40fe08086a83c587ddf0f19 100644 (file)
--- a/apps/dav/lib/Connector/Sabre/Principal.php
+++ b/apps/dav/lib/Connector/Sabre/Principal.php
@@ -178,7 +178,9 @@ class Principal implements BackendInterface {
                                return $this->userToPrincipal($user);
                        }
                } elseif ($prefix === 'principals/circles') {
-                       return $this->circleToPrincipal($name);
+                       if ($this->userSession->getUser() !== null) {
+                               return $this->circleToPrincipal($name);
+                       }
                }
                return null;
        }