discogs fails to fetch covers

[Mistress-Anna]

When trying to fetch a cover, discogs returns a 401 error:

% glyrc cover --from discogs --album oomph --artist oomph -v 4

• Artist : oomph
• Album : oomph
• Language : fr
• Type : cover

---- Triggering: discogs

• Trying 70.103.226.21...

• Connected to api.discogs.com (70.103.226.21) port 80 (#0)

  GET /database/search?type=release&q=oomph HTTP/1.1
  Host: api.discogs.com
  User-Agent: libglyr/1.0-6 (Raving Raven) +https://www.github.com/sahib/glyr
  Accept: /
  Accept-Encoding: gzip

• The requested URL returned error: 401 Unauthorized

• Closing connection 0

• glyr: Downloaderror: HTTP response code said error [errno:22]
  On URL: http://api.discogs.com/database/search?type=release&q=oomph

[sahib]

It seems discogs requires authentication for their service now:

beetbox/beets#1027

This will be rather hard to fix, since one has to use OAuth and some other difficulties.
So the discogs provider will be probably disabled soon.

[sahib]

...Or maybe not. There is also some basic auth supported.

It should work as of commit 167d047 again.
With small images for now only though.