Spotify offline sdk connection issues

[alaeri]

Issue found on 10/01/2020. It looks very similar to #184 but the error message is different.

SDK Version:

7.0.0

OS Version:

9

Spotify version: 8.5.40.195

Steps to reproduce:

Sometimes when connecting via sdk to spotify in airplane mode this error is returned by AppRemote.connect():

AuthenticationFailedException: {"message":"java.lang.Throwable: Failed resolving \u0027hm://bakery/accountscookie\u0027, got status code: 0"}

Killing/Reopening the app and spotify and enabling wifi back seems to fix the issue.

I reproduced #175 before experiencing this new error. Maybe they are linked.

Expected behaviour:

Connection is authorized if spotify was online in the last 24h.

[mdelolmo]

Apologies for the misleading error message.

Essentially that means Spotify tried to authorize your app online, and because the phone was in airplane mode, it failed.

Let me clarify that the "spotify was online in the last 24h" is a simplification of the actual requirement. I will add that by Spotify being online, we mean Spotify was launched online within that time frame.

For now I can treat this as a bug, because the error message should be more comprehensive.

[alaeri]

Thank you for the clarification.

Is there a more complete description of the requirement?

(I'm pretty sure I launched spotify online in the last 24h before I had this bug, are there some situations that could reduce this timeframe? rebooting the device - spotify app killed?)

[mdelolmo]

Hi @alaeri
Killing the app or rebooting the device should not affect this feature.

However, logging out or clearing the app's data, will invalidate the offline authorization.

In general, when your app is authorized Spotify will try to verify that is still authorized every time it's launched and online. If it can't verify it, then the TTL of that authorization is about 24 hours.

[tobika]

I'm also doing tests with this at the moment:

Starting the app.
Making sure it's connected to spotify.
Going to airplane mode.
Closing the App.
Starting again (within seconds), sometimes it works, sometimes I have the error mentioned in this issue.