sreg discovery is incorrect
use_ax, use_sreg = discover_extensions(openid_url)
code to discover if sreg extension is supported.
discover_extension gets info from
And that's the problem.
openid.consumer.discover.discover doesn't do anything but check if `sreg` service is listed in XRDF document (or in
<link rel='..'> if document doesn't exist). But listing sreg service in XRDF is not required in specification, it is not even mentioned in sreg specs, neither in 1.0 nor in 1.1 draft (in contrast, it is stated that `ax` extension SHOULD be in XRDF).
So provider can provide sreg extension and don't list it in XRDF, and it will be entirely standard. Sreg support shouldn't be checked by
openid.consumer.discover.discover. I think django_authopenid should try to get info using sreg extension regardless of XRDF.
I face this problem with openid.yandex.ru provider. It has sreg support but doesn't list it in XRDF. I contact them and they say it will be fixed, but they don't violate any specifications and there could be another providers with this behaviour.