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providers/saml: fix error on missing AssertionConsumerServiceURL, fall back to default ACS 

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>
This commit is contained in:
Jens Langhammer 2021-10-31 17:21:15 +01:00
parent 5d9bed130a
commit 335d6edd11
1 changed files with 6 additions and 4 deletions
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8
authentik/providers/saml/processors/request_parser.py
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@ -59,10 +59,12 @@ class AuthNRequestParser:
) -> AuthNRequest:
root = ElementTree.fromstring(decoded_xml)
# http://docs.oasis-open.org/security/saml/v2.0/saml-core-2.0-os.pdf
# `AssertionConsumerServiceURL` can be omitted, and we should fallback to the
# default ACS URL
if "AssertionConsumerServiceURL" not in root.attrib:
msg = "Missing 'AssertionConsumerServiceURL' attribute"
LOGGER.warning(msg)
raise CannotHandleAssertion(msg)
request_acs_url = self.provider.acs_url.lower()
else:
request_acs_url = root.attrib["AssertionConsumerServiceURL"]
if self.provider.acs_url.lower() != request_acs_url.lower():