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import logging
from django.conf import settings
import saml2.client
logger = logging.getLogger("djangosaml2")
class Saml2Client(saml2.client.Saml2Client):
"""
Custom Saml2Client that adds a choice of preference for binding used with
SAML Logout Requests. The preferred binding can be configured via
SAML_LOGOUT_REQUEST_PREFERRED_BINDING settings variable.
(Original Saml2Client always prefers SOAP, so it is always used if declared
in remote metadata); but doesn't actually work and causes crashes.
"""
def do_logout(self, *args, **kwargs):
if not kwargs.get("expected_binding"):
try:
kwargs["expected_binding"] = (
settings.SAML_LOGOUT_REQUEST_PREFERRED_BINDING
)
except AttributeError:
logger.warning(
"SAML_LOGOUT_REQUEST_PREFERRED_BINDING setting is"
" not defined. Default binding will be used."
)
return super().do_logout(*args, **kwargs)
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