- Don't remove share before all notifications are created, otherwise we miss information necessary to create the notifications

- Don't send message to owner/sharer about revoked re-shares twice.

Signed-off-by: Bjoern Schiessle <bjoern@schiessle.org>

apps/federatedfilesharing/lib/FederatedShareProvider.php

@@ -514,29 +514,19 @@ class FederatedShareProvider implements IShareProvider {
 
 		$isOwner = false;
 
-		$this->removeShareFromTable($share);
-
 		// if the local user is the owner we can send the unShare request directly...
 		if ($this->userManager->userExists($share->getShareOwner())) {
 			$this->notifications->sendRemoteUnShare($remote, $share->getId(), $share->getToken());
 			$this->revokeShare($share, true);
-			$isOwner = true;
 		} else { // ... if not we need to correct ID for the unShare request
 			$remoteId = $this->getRemoteId($share);
 			$this->notifications->sendRemoteUnShare($remote, $remoteId, $share->getToken());
 			$this->revokeShare($share, false);
 		}
 
-		// send revoke notification to the other user, if initiator and owner are not the same user
-		if ($share->getShareOwner() !== $share->getSharedBy()) {
-			$remoteId = $this->getRemoteId($share);
-			if ($isOwner) {
-				list(, $remote) = $this->addressHandler->splitUserRemote($share->getSharedBy());
-			} else {
-				list(, $remote) = $this->addressHandler->splitUserRemote($share->getShareOwner());
-			}
-			$this->notifications->sendRevokeShare($remote, $remoteId, $share->getToken());
-		}
+		// only remove the share when all messages are send to not lose information
+		// about the share to early
+		$this->removeShareFromTable($share);
 	}
 
 	/**