Fix power_on for unknown devices [setup]

[gmuth]

POST /streaming/support/power_on should return status 400
Content-Type: application/vnd.bose.streaming-v1.2+xml

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<status>
  <message>Device does not exist</message>
  <status-code>4012</status-code>
</status>

for unknown devices. To trigger this use the BoseApp setup workflow.

[akpdw]

Since we don't have a database of all devices shouldn't we just assume that a device that we've never seen before is a valid device interactive with soundcork for the first time?

[gmuth]

From my understanding Bose keeps a database of devices-associated-with-an-account. This response is involved in the device setup process - so I would keep it the same. Devices listed in any soundcork account should be considered known aka exist or unknown aka non-existing otherwise.

Have you also observed calls to /v1/blacklist/{deviceid}? This could be related to illegal device-to-account associations.

[gmuth]

On the other hand we could very well use this case for a modified setup workflow. Let's sketch the idea:
The automatic setup workflow is only active when a default account is configured for soundcork.

default_account="123456"

When power_on hits an unknown device soundcork quietly adds the device to the default account.
Assumption: The power_on request provides everything required to add a device.

If this works we'd have a much simpler setup workflow.

[akpdw]

Oh I see you're talking about valid speakers that aren't associated with any account. That makes sense.