Don't display post-installation instruction if claimed about agent HOT 7 CLOSED

@vpetersson AFAIK the only case when the device is already claimed is if it had the agent already installed (and its config files and certs therein).

Am I missing something and do we need to ask the server if the device had already been claimed?

from agent.

What I'm talking about is if you run apt-get upgrade and install an updated version of the agent. We then get the same message again about how to claim the device (despite that it has already been claimed)

Am I missing something and do we need to ask the server if the device had already been claimed?

Yes, I think that's the only way.

from agent.

clarification:

• When wott-agent claim-url is called, check if the device is already claimed by getting /api/.../is-claimed (WoTTsecurity/api#206) and if it is, return empty string.
• Update postinst, do nothing if claim-url returned empty string.

@vpetersson do we need the postinst message at all when upgrading? It's all about getting started and claiming: https://github.com/WoTTsecurity/agent/blob/master/debian/postinst#L4-L13

from agent.

We probably do not need it at all, to be honest. We do however need to know the claim status in the agent.

from agent.

@vpetersson So the postinst message should be completely removed, right?

We do however need to know the claim status in the agent.

My idea is that if the device is already claimed wott-agent claim-url returns empty. The url isn't valid anyway in this case.

from agent.

Yeah sure, or an error saying 'Device already claimed' or similar.

from agent.

i'll take it

from agent.