MM-64531: [Shared Channels] Users on different remote servers should not communicate unless the remotes have established secure connection. (#30985) (#33434)

Automatic Merge

server/channels/app/shared_channel_service_iface.go

@@ -28,6 +28,7 @@ type SharedChannelServiceIFace interface {
 	CheckChannelIsShared(channelID string) error
 	CheckCanInviteToSharedChannel(channelId string) error
 	HandleMembershipChange(channelID, userID string, isAdd bool, remoteID string)
+	IsRemoteClusterDirectlyConnected(remoteId string) bool
 	TransformMentionsOnReceiveForTesting(ctx request.CTX, post *model.Post, targetChannel *model.Channel, rc *model.RemoteCluster, mentionTransforms map[string]string)
 }
 
@@ -100,3 +101,11 @@ func (mrcs *mockSharedChannelService) HandleMembershipChange(channelID, userID s
 		mrcs.SharedChannelServiceIFace.HandleMembershipChange(channelID, userID, isAdd, remoteID)
 	}
 }
+
+func (mrcs *mockSharedChannelService) IsRemoteClusterDirectlyConnected(remoteId string) bool {
+	if mrcs.SharedChannelServiceIFace != nil {
+		return mrcs.SharedChannelServiceIFace.IsRemoteClusterDirectlyConnected(remoteId)
+	}
+	// Default behavior for mock: Local server is always connected
+	return remoteId == ""
+}