send leave when client reconnects on server restart (#43)

go.mod

@@ -10,7 +10,7 @@ require (
 	github.com/google/wire v0.5.0
 	github.com/gorilla/websocket v1.4.2
 	github.com/jxskiss/base62 v0.0.0-20191017122030-4f11678b909b
-	github.com/livekit/protocol v0.5.5
+	github.com/livekit/protocol v0.5.6
 	github.com/magefile/mage v1.11.0
 	github.com/maxbrunsfeld/counterfeiter/v6 v6.3.0
 	github.com/mitchellh/go-homedir v1.1.0

go.sum

@@ -232,8 +232,8 @@ github.com/lithammer/shortuuid/v3 v3.0.6 h1:pr15YQyvhiSX/qPxncFtqk+v4xLEpOZObbsY
 github.com/lithammer/shortuuid/v3 v3.0.6/go.mod h1:vMk8ke37EmiewwolSO1NLW8vP4ZaKlRuDIi8tWWmAts=
 github.com/livekit/ion-sfu v1.10.7-0.20210706220057-6c0f6eb24d59 h1:xltblvdgh94JRNnCM9z/cwVq9Dqh//l9SjxOlfFa1XQ=
 github.com/livekit/ion-sfu v1.10.7-0.20210706220057-6c0f6eb24d59/go.mod h1:Wx6b4qGUjvSo1kGl+/fHl0ZF48g2IJOjzUFg0yCo9qY=
-github.com/livekit/protocol v0.5.5 h1:ZsfmTpaApf2o75qpJLP2f/FsCOwxW2sDJE3HKDa2OXE=
-github.com/livekit/protocol v0.5.5/go.mod h1:wo3CGfYB7XMF8GoVJAfTARrYSP/ombi+sbLl6AYdKP0=
+github.com/livekit/protocol v0.5.6 h1:vMUjYvJH2TD/WIjrXtG6aQl5fFrIj0/ZgIctQqmmwro=
+github.com/livekit/protocol v0.5.6/go.mod h1:wo3CGfYB7XMF8GoVJAfTARrYSP/ombi+sbLl6AYdKP0=
 github.com/lucsky/cuid v1.0.2 h1:z4XlExeoderxoPj2/dxKOyPxe9RCOu7yNq9/XWxIUMQ=
 github.com/lucsky/cuid v1.0.2/go.mod h1:QaaJqckboimOmhRSJXSx/+IT+VTfxfPGSo/6mfgUfmE=
 github.com/lyft/protoc-gen-validate v0.0.13/go.mod h1:XbGvPuh87YZc5TdIa2/I4pLk0QoUACkjt2znoq26NVQ=

pkg/service/roommanager.go

@@ -245,6 +245,19 @@ func (r *RoomManager) StartSession(roomName string, pi routing.ParticipantInit,
 			// we need to clean up the existing participant, so a new one can join
 			room.RemoveParticipant(participant.Identity())
 		}
+	} else if pi.Reconnect {
+		// send leave request if participant is trying to reconnect but missing from the room
+		if err = responseSink.WriteMessage(&livekit.SignalRequest{
+			Message: &livekit.SignalRequest_Leave{
+				Leave: &livekit.LeaveRequest{
+					CanReconnect: true,
+				},
+			},
+		}); err != nil {
+			logger.Warnw("could not restart participant", err,
+				"participant", pi.Identity)
+		}
+		return
 	}
 
 	logger.Debugw("starting RTC session",