post_authenticated_signal not sent and request missing

[JeroenvO]

Hi,
I found a little bug, same as #37 the post_authenticated signal is not sent.
Line:
https://github.com/knaperek/djangosaml2/blob/master/djangosaml2/views.py#L320
Instead of user sender should be user.__class__.

Next to this, it would be nice to have the request as well.

Suggested fix: Change line 320 to:
post_authenticated.send_robust(sender=user.__class__, instance=user, session_info=session_info, request=request)

[JeroenvO]

If you prefer a merge request, just let me know.
Thanks for the plugin anyway!

[peppelinux]

Hi @JeroenvO I think that this is a good moment to merge all the pending contributions in what we'll be the v0.18.2 release, we're gaining also a bit of entropy but we just have to start a new deal with a renewed community.

Your purpose sounds good and I think that if possibile - two yeasr passed! - I'd like to see your PR and merge it, let us know

[JeroenvO]

It will take me some time to get to know the code again. I think only
https://github.com/knaperek/djangosaml2/blob/master/djangosaml2/views.py#L352
has to change, but this should be tested of course.

[peppelinux]

Thank you @JeroenvO, take your time and have fun in this.
I think that you can do a PR, sure!
this will help us to have better tests before the next release.
If something goes bad in the tests you'll do please tell us, this would be the integrated in the unit tests in useful times

[peppelinux]

Fixed here:
8b24150

Thank you @JeroenvO