Error when logging in new Session with Blob on Ubuntu

Dan Healy

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Oct 15, 2013, 7:15:58 PM10/15/13

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I am able to run Hallon / Spotify on Mac OS X for logging in a user with a blob, but on Ubuntu 10.10 the same code results in this error:

E [boink.cpp:809] Can't parse message 'LoginCredentials' because it's missing required fields: type

It then goes on for repeated connection failures with error 103 / 112

See paste: http://pastie.org/8405118

I understand Hallon is not maintained but I feel that my use case here is not very complex and would result in the same error with raw spotify, so I am looking for suggestions on fixing this if you have any.

Thanks,
--Dan

Dan Healy

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Oct 15, 2013, 7:20:27 PM10/15/13

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Quick update: I tried it on Ubuntu 12.04, same result except I don't see the error message about boink.cpp:809. Still seeing "[offline_authorizer.cpp:297] Unable to login offline: no such user" and repeated "Software caused connection abort (103)" though.

Kim Burgestrand

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Oct 16, 2013, 2:10:13 AM10/16/13

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This is interesting!

The error does not seem to come from inside the spotify gems, but rather from somewhere in libspotify. I suspect that libspotify will unencrypt the credentials blob, but that the credentials blob is somehow missing information that is required by libspotify.

It is possible this is a bug in libspotify which has come from spotify (possibly) updating their back-end without updating libspotify for the new credentials blob change.

I will need to try this for myself with my own account to see if I see the same error.

— Kim Burgestrand

On Wed, Oct 16, 2013 at 1:20 AM, Dan Healy via Hallon <ruby-hallon+noreply-APn2wQd4uOb1...@googlegroups.com> wrote:

Quick update: I tried it on Ubuntu 12.04, same result except I don't see the error message about boink.cpp:809. Still seeing "[offline_authorizer.cpp:297] Unable to login offline: no such user" and repeated "Software caused connection abort (103)" though.

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Kim Burgestrand

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Oct 16, 2013, 2:45:37 AM10/16/13

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Hello again.

I made a try, using the spotify gem only. The logging in-example in the examples now spits out the credentials blob when the callback happens: https://github.com/Burgestrand/spotify/blob/master/examples/logging-in_example.rb

You can use the blob for logging in by specifying the SPOTIFY_BLOB environment variable when running the examples.

Like you mention, logging in with blobs on OS X works just fine. Next up is trying it on Ubuntu.

— Kim Burgestrand

Dan Healy

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Oct 16, 2013, 2:12:40 PM10/16/13

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Just to verify, I am seeing the same behavior with your example: http://pastie.org/8407134

I appreciate your help!

--Dan

Kim Burgestrand

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Oct 17, 2013, 3:20:58 PM10/17/13

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I gave it a try on the default 32bit Amazon Linux AMI, and the example ran without issues. I’ll try it on a 64bit instance as well.

Your latest paste appears to be in line with what I receive if I give the example an invalid credentials blob: http://pastie.org/private/ffclklhdyhqmun0z4deg — are you sure the credentials blob you supply is valid and up to date?

— Kim Burgestrand

Kim Burgestrand

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Oct 17, 2013, 3:48:05 PM10/17/13

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Tried on 64bit, and also created an Ubuntu instance without being able to reproduce your error. Here’s my console log: http://pastie.org/private/9wijxhr5srtpbuwdgv1g

Could you provide more clues which might help me reproduce the error you are seeing?

— Kim Burgestrand

Dan Healy

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Oct 17, 2013, 5:39:29 PM10/17/13

to Hallon on behalf of Kim Burgestrand

Thank you for helping me with this, I would have had a lot of trouble figuring this out on my own. Indeed, my blob was invalid. After logging in via password, I was able to login using the updated blob. I am not sure why it changed. I did not change my password. Does the blob change on a per machine basis?

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Kim Burgestrand

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Oct 18, 2013, 12:09:18 AM10/18/13

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Does the blob change on a per machine basis?

I am actually not sure! The blob stuff is pretty much all in libspotify, so it’s more or less like a black box to me. I send stuff it, sometimes weird stuff come out. I suppose it’s possible that the blob might be different per machine, especially when run against Ubuntu vs. OSX considering the SessionConfig has an additional field on Ubuntu.