Close WS Connection gracefully

[MerzMax]

In order to decide if the disconnect of an client was intended or not, the intendet disconnect should be "quiet". At the moment the connection will not be closed gracefully.

If the client programm will be terminated the following output will be displayed in the server:

2021/11/05 18:41:10 Error during reading message:  websocket: close 1006 (abnormal closure): unexpected EOF

[MerzMax]

@martbock The server now logs:

2021/11/06 15:25:57 Error during reading message:  websocket: close 1000 (normal)

Do you think thats fine or should we digg deeper into this?

Additional client logs:

2021/11/06 15:25:57 Error while receiving message: websocket: close 1000 (normal)
2021/11/06 15:25:57 Error while sending message: websocket: close sent

[martbock]

Do you think thats fine or should we digg deeper into this?

Am I correct in assuming the PR already digs deeper into it? If not, I guess we should look into it – but we could create a separate issue and fix it later on.

[MerzMax]

@martbock no the PR does not digg deeper yet. If you compare the log statements the output changes from an unexpected to an expected error. The question is as if this is fine or if we should handle this differently.

Maybe we should discuss how to manage errors in general on thursday :)