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Tomas79
Posts: 399
Registered: ‎07-01-2015
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HUE fails with saml

‎11-19-2018 01:16 AM

Hi, does anybody have a similar experience with python errors when using HUE with SAML?

My error after switching to saml authentication is :

 

[root@ip-10-85-150-28 env]# pwd
/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/build/env
./bin/pip list
pysaml2 (4.4.0)

-> HUE ERROR log:
[07/Nov/2018 00:19:47 -0800] access       INFO     10.85.239.102 -anon- - "POST / HTTP/1.1" -- login redirection
[07/Nov/2018 00:19:47 -0800] access       INFO     10.85.239.102 -anon- - "POST / HTTP/1.1" returned in 0ms
[07/Nov/2018 00:19:47 -0800] client       INFO     destination to provider: https://10.85.150.28:8888
[07/Nov/2018 00:19:47 -0800] entity       INFO     REQUEST: <?xml version='1.0' encoding='UTF-8'?>
<samlp:AuthnRequest xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion" xmlns:samlp="urn:oasis:names:tc:SAML:2.0:protocol" AssertionConsumerServiceURL="https://10.85.150.28:8888/saml2/acs/" Destination="https://10.85.150.28:8888" ID="id-nLFNl6R57kIYXjA0m" IssueInstant="2018-11-07T08:19:47Z" ProtocolBinding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST" Version="2.0"><saml:Issuer Format="urn:oasis:names:tc:SAML:2.0:nameid-format:entity">https://10.85.150.28:8888/saml2/metadata/</saml:Issuer><samlp:NameIDPolicy AllowCreate="false" Format="urn:oasis:names:tc:SAML:2.0:nameid-format:persistent" /></samlp:AuthnRequest>
[07/Nov/2018 00:19:47 -0800] client       INFO     AuthNReq: <?xml version='1.0' encoding='UTF-8'?>
<samlp:AuthnRequest xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion" xmlns:samlp="urn:oasis:names:tc:SAML:2.0:protocol" AssertionConsumerServiceURL="https://10.85.150.28:8888/saml2/acs/" Destination="https://10.85.150.28:8888" ID="id-nLFNl6R57kIYXjA0m" IssueInstant="2018-11-07T08:19:47Z" ProtocolBinding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST" Version="2.0"><saml:Issuer Format="urn:oasis:names:tc:SAML:2.0:nameid-format:entity">https://10.85.150.28:8888/saml2/metadata/</saml:Issuer><samlp:NameIDPolicy AllowCreate="false" Format="urn:oasis:names:tc:SAML:2.0:nameid-format:persistent" /></samlp:AuthnRequest>
[07/Nov/2018 00:19:47 -0800] entity       INFO     HTTP REDIRECT
[07/Nov/2018 00:19:47 -0800] middleware   INFO     Processing exception: 'NoneType' object has no attribute 'get_signer': Traceback (most recent call last):
  File "/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/Django-1.6.10-py2.7.egg/django/core/handlers/base.py", line 112, in get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/Django-1.6.10-py2.7.egg/django/db/transaction.py", line 371, in inner
    return func(*args, **kwargs)
  File "/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/djangosaml2-0.16.4-py2.7.egg/djangosaml2/views.py", line 175, in login
    binding=binding, sign=False, sigalg=sigalg)
  File "/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/pysaml2-4.4.0-py2.7.egg/saml2/client.py", line 76, in prepare_for_authenticate
    **kwargs)
  File "/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/pysaml2-4.4.0-py2.7.egg/saml2/client.py", line 129, in prepare_for_negotiated_authenticate
    relay_state, **args)
  File "/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/pysaml2-4.4.0-py2.7.egg/saml2/entity.py", line 231, in apply_binding
    signer = self.sec.sec_backend.get_signer(kwargs['sigalg'])
AttributeError: 'NoneType' object has no attribute 'get_signer'

I tried to upgrade pysaml but it broked the whole setup.

 

Followed the recommendation from the docs and installed additional packages (running on Centos 7.5)

 

install git gcc python-devel swig openssl

sudo vi /usr/java/jdk1.8.0_191-amd64/jre/lib/security/java.security

/jdk.certpath.disabledAlgorithms=MD2, MD5, RC4, DH, SHA1 jdkCA & usage TLSServer,..../

wget http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-6.noarch.rpm

rpm -ivh epel-release-7-6.noarch.rpm

yum install xmlsec1 xmlsec1-openssl

Thanks

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bgooley
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Re: HUE fails with saml

‎11-19-2018 09:32 AM

@Tomas79,

 

Can you clarify what steps you took and what your hue configuration looks like when you receive the exception.

 

What documentation steps did you follow that mentioned you should upgrade your pysaml2 package?

 

What brand of IDP are you using?

 

At quick glance, it appears that your SAML response is using HTTP_REDIRECT binding and there is some problem parsing it perhaps.  We see the request uses HTTP_POST for ProtocolBinding.  Let's see if we can view the SAML response in the Hue log by enabling DEBUG.  This may give us some clues.

 

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Tomas79
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Re: HUE fails with saml

‎11-20-2018 02:48 AM

Hi @bgooley, 

 I have installed the HUE service via CM, then in advance I prepared the following:

- installed xmlsec1 and xmlsec1-openssl packages on Centos 7.5

- exported the certificate for SAML signing (Azure AD SSO) in base64 format

- created the idp.xml file  - /tmp/idp.xml

- stored the cerrtificate in base64 format as pem file /tmp/idp.pem

 

Set on the IDP the URL for login (https://<hue-fqdn>:8888)

 

Set on advanced properties the following:

 

[[auth]]
backend=libsaml.backend.SAML2Backend
[libsaml]
xmlsec_binary=/usr/bin/xmlsec1
metadata_file=/tmp/idp.xml
cert_file=/tmp/idp.pem

 

Restarted the HUE service.

Then I try to initiate the login process and get this:

 

[20/Nov/2018 02:36:31 -0800] middleware   INFO     Redirecting to login page: /
[20/Nov/2018 02:36:31 -0800] access       INFO     10.85.239.134 -anon- - "POST / HTTP/1.1" -- login redirection
[20/Nov/2018 02:36:31 -0800] access       INFO     10.85.239.134 -anon- - "POST / HTTP/1.1" returned in 0ms
[20/Nov/2018 02:36:32 -0800] client       INFO     destination to provider: https://login.microsoftonline.com/<AZURE_CLIENT_ID>/saml2
[20/Nov/2018 02:36:32 -0800] entity       INFO     REQUEST: <?xml version='1.0' encoding='UTF-8'?>
<samlp:AuthnRequest xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion" xmlns:samlp="urn:oasis:names:tc:SAML:2.0:protocol" AssertionConsumerServiceURL="https://<HUE_HOST>:8888/saml2/acs/" Destination="https://login.microsoftonline.com/<AZURE_CLIENT_ID>/saml2" ID="xxxxxxxxxxxxxxxx" IssueInstant="2018-11-20T10:36:32Z" ProtocolBinding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST" Version="2.0"><saml:Issuer Format="urn:oasis:names:tc:SAML:2.0:nameid-format:entity">https://<HUE_HOST>:8888/saml2/metadata/</saml:Issuer><samlp:NameIDPolicy AllowCreate="false" Format="urn:oasis:names:tc:SAML:2.0:nameid-format:persistent" /></samlp:AuthnRequest>
[20/Nov/2018 02:36:32 -0800] client       INFO     AuthNReq: <?xml version='1.0' encoding='UTF-8'?>
<samlp:AuthnRequest xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion" xmlns:samlp="urn:oasis:names:tc:SAML:2.0:protocol" AssertionConsumerServiceURL="https://<HUE_HOST>:8888/saml2/acs/" Destination="https://login.microsoftonline.com/<AZURE_CLIENT_ID>/saml2" ID="xxxxxxxxxxxxxxxx" IssueInstant="2018-11-20T10:36:32Z" ProtocolBinding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST" Version="2.0"><saml:Issuer Format="urn:oasis:names:tc:SAML:2.0:nameid-format:entity">https://<HUE_HOST>:8888/saml2/metadata/</saml:Issuer><samlp:NameIDPolicy AllowCreate="false" Format="urn:oasis:names:tc:SAML:2.0:nameid-format:persistent" /></samlp:AuthnRequest>
[20/Nov/2018 02:36:32 -0800] entity       INFO     HTTP REDIRECT
[20/Nov/2018 02:36:32 -0800] middleware   INFO     Processing exception: 'NoneType' object has no attribute 'get_signer': Traceback (most recent call last):
  File "/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/Django-1.6.10-py2.7.egg/django/core/handlers/base.py", line 112, in get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/Django-1.6.10-py2.7.egg/django/db/transaction.py", line 371, in inner
    return func(*args, **kwargs)
  File "/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/djangosaml2-0.16.4-py2.7.egg/djangosaml2/views.py", line 175, in login
    binding=binding, sign=False, sigalg=sigalg)
  File "/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/pysaml2-4.4.0-py2.7.egg/saml2/client.py", line 76, in prepare_for_authenticate
    **kwargs)
  File "/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/pysaml2-4.4.0-py2.7.egg/saml2/client.py", line 129, in prepare_for_negotiated_authenticate
    relay_state, **args)
  File "/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/pysaml2-4.4.0-py2.7.egg/saml2/entity.py", line 231, in apply_binding
    signer = self.sec.sec_backend.get_signer(kwargs['sigalg'])
AttributeError: 'NoneType' object has no attribute 'get_signer'

Let me please now how to set HUE logs into DEBUG level, I have not found any settings in CM for this, nor any advanced snippet.

Thanks

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Tomas79
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Re: HUE fails with saml

‎11-20-2018 03:47 AM

I have set to a debug level, but no more information was in the log.

But then I changed the Reply URL (Assertion Consumer Service URL) to 

https://<HUE_HOST>:8888/saml2/acs

 

and the log indicates a missing key

 

[20/Nov/2018 03:38:14 -0800] response     DEBUG    response: <?xml version='1.0' encoding='UTF-8'?>
<samlp:Response xmlns:ds="http://www.w3.org/2000/09/xmldsig#" xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion" xmlns:samlp="urn:oasis:names:tc:SAML:2.0:protocol" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" Destination="<HUE_HOST>:8888/saml2/acs/" .....
[20/Nov/2018 03:38:14 -0800] entity       DEBUG    XMLSTR: <samlp:Response ID="_826d97f2-9226-4d27-b550-f4e53829ac75" Version="2.0" IssueInstant="2018-11-20T11:38:13.783Z" Destination="<HUE_HOST>:8888/saml2/acs/" xmlns:samlp="urn:oasis:names:tc:SAML:2.0:protocol">....
[20/Nov/2018 03:38:14 -0800] response     INFO     status: <?xml version='1.0' encoding='UTF-8'?>
<samlp:Status xmlns:samlp="urn:oasis:names:tc:SAML:2.0:protocol"><samlp:StatusCode Value="urn:oasis:names:tc:SAML:2.0:status:Success" /></samlp:Status>
[20/Nov/2018 03:38:14 -0800] response     DEBUG    ***Unencrypted assertion***
[20/Nov/2018 03:38:14 -0800] response     DEBUG    signed
[20/Nov/2018 03:38:14 -0800] sigver       DEBUG    ==== Certs from metadata ==== None: [] ====
[20/Nov/2018 03:38:14 -0800] response     ERROR    correctly_signed_response: None
[20/Nov/2018 03:38:14 -0800] client_base  ERROR    XML parse error: None
[20/Nov/2018 03:38:14 -0800] views        ERROR    SAML Identity Provider is not configured correctly: certificate key is missing!
Traceback (most recent call last):
  File "/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/djangosaml2-0.16.4-py2.7.egg/djangosaml2/views.py", line 254, in assertion_consumer_service
    response = client.parse_authn_request_response(xmlstr, BINDING_HTTP_POST, outstanding_queries)
  File "/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/pysaml2-4.4.0-py2.7.egg/saml2/client_base.py", line 597, in parse_authn_request_response
    binding, **kwargs)
  File "/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/pysaml2-4.4.0-py2.7.egg/saml2/entity.py", line 1172, in _parse_response
    response = response.verify(keys)
  File "/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/pysaml2-4.4.0-py2.7.egg/saml2/response.py", line 1017, in verify
    if self.parse_assertion(keys):
  File "/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/pysaml2-4.4.0-py2.7.egg/saml2/response.py", line 929, in parse_assertion
    if not self._assertion(assertion, False):
  File "/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/pysaml2-4.4.0-py2.7.egg/saml2/response.py", line 787, in _assertion
    self.xmlstr)
  File "/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/pysaml2-4.4.0-py2.7.egg/saml2/sigver.py", line 1674, in check_signature
    id_attr=id_attr, must=must, issuer=issuer)
  File "/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/pysaml2-4.4.0-py2.7.egg/saml2/sigver.py", line 1614, in _check_signature
    raise MissingKey("%s" % issuer)
MissingKey: None
[20/Nov/2018 03:38:14 -0800] middleware   INFO     Processing exception: : Traceback (most recent call last):
  File "/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/Django-1.6.10-py2.7.egg/django/core/handlers/base.py", line 112, in get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/Django-1.6.10-py2.7.egg/django/db/transaction.py", line 371, in inner
    return func(*args, **kwargs)
  File "/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/Django-1.6.10-py2.7.egg/django/views/decorators/http.py", line 41, in inner
    return func(request, *args, **kwargs)
  File "/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/Django-1.6.10-py2.7.egg/django/views/decorators/csrf.py", line 57, in wrapped_view
    return view_func(*args, **kwargs)
  File "/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/djangosaml2-0.16.4-py2.7.egg/djangosaml2/views.py", line 272, in assertion_consumer_service
    return fail_acs_response(request)
  File "/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/djangosaml2-0.16.4-py2.7.egg/djangosaml2/utils.py", line 85, in fail_acs_response
    return failure_function(request, *args, **kwargs)
  File "/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/djangosaml2-0.16.4-py2.7.egg/djangosaml2/acs_failures.py", line 22, in exception_failure
    raise exc_class
PermissionDenied

 

 

But for Azure AD there is no option to download a key. 

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bgooley
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Re: HUE fails with saml

‎11-20-2018 08:51 AM

@Tomas79,

 

It appears that you manually truncated the XML response so we cannot see the key information that helps us understand why the failures is occurring.

 

Based on the code path, the SAML response is returned and there is an attempt to parse it so that the response can be validated and the needed information extracted.

Along those steps, there is a check to see if the assertion is signed. If it is signed (which Azure SSO should be based on the documentation) then a check is done to verify the signature.

 

That is failing as it appears either your IDP metadata or the response does not include a valid signature.  I suggest looking at the IDP metadata and the response assertion to help understand what might be causing the problem

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Tomas79
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Re: HUE fails with saml

‎11-20-2018 08:58 AM

Hi, thanks for the detailed explanation.
I truncated it intentionally to avoid some senstivie data exposure.

The idp xml file was built using an online tool, I just put there the
entity id, url and IDP certificate. But I did not enter any key, as Azure
AD does not provide (at least) on the GUI any option to download a key.

What I can try is to take the whole Federation xml file and put it into the
HUE server /tmp/idp.xml
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Tomas79
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Re: HUE fails with saml

‎11-20-2018 09:34 AM

@bgooley I think using the IDP metadata file from AAD helped a bit, it still fails, but I see there more information about the sign in person - I just redacted the keys, certificates, name of the user, AD login name, etc.

 

[20/Nov/2018 09:24:35 -0800] response     DEBUG    response: <?xml version='1.0' encoding='UTF-8'?>
<samlp:Response xmlns:ds="http://www.w3.org/2000/09/xmldsig#" xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion" xmlns:samlp="urn:oasis:names:tc:SAML:2.0:protocol" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" Destination="https://hue.redacted.fqd:8888/saml2/acs/" ID="_578d4cb5-1494-4087-9835-3755369d1c7d" IssueInstant="2018-11-20T17:24:34.576Z" Version="2.0"><saml:Issuer>https://sts.windows.net/f0ba4e-redacted-client-id-4kha/</saml:Issuer><samlp:Status><samlp:StatusCode Value="urn:oasis:names:tc:SAML:2.0:status:Success" /></samlp:Status><saml:Assertion ID="_c1e08c03-ccf6-4f32-9a96-5e00cc4233e4" IssueInstant="2018-11-20T17:24:34.576Z" Version="2.0"><saml:Issuer>https://sts.windows.net/f0ba4e-redacted-client-id-4kha/</saml:Issuer><ds:Signature><ds:SignedInfo><ds:CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#" /><ds:SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256" /><ds:Reference URI="#_c1e08c03-ccf6-4f32-9a96-5e00cc4233e4"><ds:Transforms><ds:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature" /><ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#" /></ds:Transforms><ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256" /><ds:DigestValue>sWH/9QDUVYTke2KTf8jB9xPYy+z9vGkUf1kpq2NUxik=</ds:DigestValue></ds:Reference></ds:SignedInfo><ds:SignatureValue>XXXXXRDInP1nr78HQlVbgemS5sZrebvd7BH/ERb1aFhIV1Z9ZucIUjf1evoQY9LNM/V8UBzKc7lp748TGSuAZlGwlAbrvfwUDYHONUbZ3h2j3DVMb2LBjeDTyo3e8qU/4rtyvv3QapChKuECTyizF6OHJClgYKrCyzOkPb9jHsGDFNHnQ==</ds:SignatureValue><ds:KeyInfo><ds:X509Data><ds:X509Certificate><REDACTED>wMc7dfqQmlUnRbxRmBiPmyXJD6BAGphj9R/LdWC3OsNfehDnpPSsJ8+jHO3MeSMR2qTkBpeFp4naYv2lLfRgUV/0Tt4ncVPyCwTf6yoTmAHsbvzDf2jSFr6YtsnVU4VY1RswIvt9jUXjd4wcOyK/Mjs8Lfcub1oWL8jeujuSq0DJPxJiCWGWs4HSPtAoKIYnPTg9ysYHyWu/91DCTP7cnfQw37Lu+7X7nm6XO1xWmpSVhGqc2tT8PL</ds:X509Certificate></ds:X509Data></ds:KeyInfo></ds:Signature><saml:Subject><saml:NameID Format="urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress">REDACTED-MY-USER-NAME</saml:NameID><saml:SubjectConfirmation Method="urn:oasis:names:tc:SAML:2.0:cm:bearer"><saml:SubjectConfirmationData NotOnOrAfter="2018-11-20T17:29:34.576Z" Recipient="https://hue.redacted.fqd:8888/saml2/acs/" /></saml:SubjectConfirmation></saml:Subject><saml:Conditions NotBefore="2018-11-20T17:19:34.576Z" NotOnOrAfter="2018-11-20T18:19:34.576Z"><saml:AudienceRestriction><saml:Audience>hue-dev</saml:Audience></saml:AudienceRestriction></saml:Conditions><saml:AuthnStatement AuthnInstant="2018-11-07T07:43:32.657Z" SessionIndex="_c1e08c03-ccf6-4f32-9a96-5e00cc4233e4"><saml:AuthnContext><saml:AuthnContextClassRef>urn:oasis:names:tc:SAML:2.0:ac:classes:Password</saml:AuthnContextClassRef></saml:AuthnContext></saml:AuthnStatement><saml:AttributeStatement><saml:Attribute Name="http://schemas.microsoft.com/identity/claims/tenantid" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri"><saml:AttributeValue xmlns:xs="http://www.w3.org/2001/XMLSchema" xsi:type="xs:string">f0ba4e-redacted-client-id-4kha</saml:AttributeValue></saml:Attribute><saml:Attribute Name="http://schemas.microsoft.com/identity/claims/objectidentifier" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri"><saml:AttributeValue xmlns:xs="http://www.w3.org/2001/XMLSchema" xsi:type="xs:string">abd66e79-6e17-43fc-9a51-9eed558cd902</saml:AttributeValue></saml:Attribute><saml:Attribute Name="http://schemas.microsoft.com/identity/claims/displayname" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri"><saml:AttributeValue xmlns:xs="http://www.w3.org/2001/XMLSchema" xsi:type="xs:string">RedactedFirstName RedactedLastName</saml:AttributeValue></saml:Attribute><saml:Attribute Name="http://schemas.microsoft.com/identity/claims/identityprovider" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri"><saml:AttributeValue xmlns:xs="http://www.w3.org/2001/XMLSchema" xsi:type="xs:string">https://sts.windows.net/f0ba4e-redacted-client-id-4kha/</saml:AttributeValue></saml:Attribute><saml:Attribute Name="http://schemas.microsoft.com/claims/authnmethodsreferences" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri"><saml:AttributeValue xmlns:xs="http://www.w3.org/2001/XMLSchema" xsi:type="xs:string">http://schemas.microsoft.com/ws/2008/06/identity/authenticationmethod/password</saml:AttributeValue></saml:Attribute><saml:Attribute Name="http://schemas.xmlsoap.org/ws/2005/05/identity/claims/givenname" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri"><saml:AttributeValue xmlns:xs="http://www.w3.org/2001/XMLSchema" xsi:type="xs:string">RedactedFirstName</saml:AttributeValue></saml:Attribute><saml:Attribute Name="http://schemas.xmlsoap.org/ws/2005/05/identity/claims/surname" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri"><saml:AttributeValue xmlns:xs="http://www.w3.org/2001/XMLSchema" xsi:type="xs:string">RedactedLastName</saml:AttributeValue></saml:Attribute><saml:Attribute Name="http://schemas.xmlsoap.org/ws/2005/05/identity/claims/emailaddress" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri"><saml:AttributeValue xmlns:xs="http://www.w3.org/2001/XMLSchema" xsi:type="xs:string">REDACTED-MY-USER-NAME</saml:AttributeValue></saml:Attribute><saml:Attribute Name="http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri"><saml:AttributeValue xmlns:xs="http://www.w3.org/2001/XMLSchema" xsi:type="xs:string">REDACTED-MY-USER-NAME</saml:AttributeValue></saml:Attribute></saml:AttributeStatement></saml:Assertion></samlp:Response>
[20/Nov/2018 09:24:35 -0800] entity       DEBUG    XMLSTR: <samlp:Response ID="_578d4cb5-1494-4087-9835-3755369d1c7d" Version="2.0" IssueInstant="2018-11-20T17:24:34.576Z" Destination="https://hue.redacted.fqd:8888/saml2/acs/" xmlns:samlp="urn:oasis:names:tc:SAML:2.0:protocol"><Issuer xmlns="urn:oasis:names:tc:SAML:2.0:assertion">https://sts.windows.net/f0ba4e-redacted-client-id-4kha/</Issuer><samlp:Status><samlp:StatusCode Value="urn:oasis:names:tc:SAML:2.0:status:Success"/></samlp:Status><Assertion ID="_c1e08c03-ccf6-4f32-9a96-5e00cc4233e4" IssueInstant="2018-11-20T17:24:34.576Z" Version="2.0" xmlns="urn:oasis:names:tc:SAML:2.0:assertion"><Issuer>https://sts.windows.net/f0ba4e-redacted-client-id-4kha/</Issuer><Signature xmlns="http://www.w3.org/2000/09/xmldsig#"><SignedInfo><CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/><SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256"/><Reference URI="#_c1e08c03-ccf6-4f32-9a96-5e00cc4233e4"><Transforms><Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/><Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/></Transforms><DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/><DigestValue>sWH/9QDUVYTke2KTf8jB9xPYy+z9vGkUf1kpq2NUxik=</DigestValue></Reference></SignedInfo><SignatureValue>XXXXXRDInP1nr78HQlVbgemS5sZrebvd7BH/ERb1aFhIV1Z9ZucIUjf1evoQY9LNM/V8UBzKc7lp748TGSuAZlGwlAbrvfwUDYHONUbZ3h2j3DVMb2LBjeDTyo3e8qU/4rtyvv3QapChKuECTyizF6OHJClgYKrCyzOkPb9jHsGDFNHnQ==</SignatureValue><KeyInfo><X509Data><X509Certificate><REDACTED>wMc7dfqQmlUnRbxRmBiPmyXJD6BAGphj9R/LdWC3OsNfehDnpPSsJ8+jHO3MeSMR2qTkBpeFp4naYv2lLfRgUV/0Tt4ncVPyCwTf6yoTmAHsbvzDf2jSFr6YtsnVU4VY1RswIvt9jUXjd4wcOyK/Mjs8Lfcub1oWL8jeujuSq0DJPxJiCWGWs4HSPtAoKIYnPTg9ysYHyWu/91DCTP7cnfQw37Lu+7X7nm6XO1xWmpSVhGqc2tT8PL</X509Certificate></X509Data></KeyInfo></Signature><Subject><NameID Format="urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress">REDACTED-MY-USER-NAME</NameID><SubjectConfirmation Method="urn:oasis:names:tc:SAML:2.0:cm:bearer"><SubjectConfirmationData NotOnOrAfter="2018-11-20T17:29:34.576Z" Recipient="https://hue.redacted.fqd:8888/saml2/acs/"/></SubjectConfirmation></Subject><Conditions NotBefore="2018-11-20T17:19:34.576Z" NotOnOrAfter="2018-11-20T18:19:34.576Z"><AudienceRestriction><Audience>hue-dev</Audience></AudienceRestriction></Conditions><AttributeStatement><Attribute Name="http://schemas.microsoft.com/identity/claims/tenantid"><AttributeValue>f0ba4e-redacted-client-id-4kha</AttributeValue></Attribute><Attribute Name="http://schemas.microsoft.com/identity/claims/objectidentifier"><AttributeValue>abd66e79-6e17-43fc-9a51-9eed558cd902</AttributeValue></Attribute><Attribute Name="http://schemas.microsoft.com/identity/claims/displayname"><AttributeValue>RedactedFirstName RedactedLastName</AttributeValue></Attribute><Attribute Name="http://schemas.microsoft.com/identity/claims/identityprovider"><AttributeValue>https://sts.windows.net/f0ba4e-redacted-client-id-4kha/</AttributeValue></Attribute><Attribute Name="http://schemas.microsoft.com/claims/authnmethodsreferences"><AttributeValue>http://schemas.microsoft.com/ws/2008/06/identity/authenticationmethod/password</AttributeValue></Attribute><Attribute Name="http://schemas.xmlsoap.org/ws/2005/05/identity/claims/givenname"><AttributeValue>RedactedFirstName</AttributeValue></Attribute><Attribute Name="http://schemas.xmlsoap.org/ws/2005/05/identity/claims/surname"><AttributeValue>RedactedLastName</AttributeValue></Attribute><Attribute Name="http://schemas.xmlsoap.org/ws/2005/05/identity/claims/emailaddress"><AttributeValue>REDACTED-MY-USER-NAME</AttributeValue></Attribute><Attribute Name="http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name"><AttributeValue>REDACTED-MY-USER-NAME</AttributeValue></Attribute></AttributeStatement><AuthnStatement AuthnInstant="2018-11-07T07:43:32.657Z" SessionIndex="_c1e08c03-ccf6-4f32-9a96-5e00cc4233e4"><AuthnContext><AuthnContextClassRef>urn:oasis:names:tc:SAML:2.0:ac:classes:Password</AuthnContextClassRef></AuthnContext></AuthnStatement></Assertion></samlp:Response>
[20/Nov/2018 09:24:35 -0800] response     INFO     status: <?xml version='1.0' encoding='UTF-8'?>
<samlp:Status xmlns:samlp="urn:oasis:names:tc:SAML:2.0:protocol"><samlp:StatusCode Value="urn:oasis:names:tc:SAML:2.0:status:Success" /></samlp:Status>
[20/Nov/2018 09:24:35 -0800] response     DEBUG    ***Unencrypted assertion***
[20/Nov/2018 09:24:35 -0800] response     DEBUG    signed
[20/Nov/2018 09:24:35 -0800] sigver       DEBUG    ==== Certs from metadata ==== None: [(<open file '<fdopen>', mode 'w+b' at 0x7f6f5805a0c0>, '/tmp/tmpJ4XqjT.pem')] ====
[20/Nov/2018 09:24:35 -0800] sigver       DEBUG    xmlsec command: /usr/bin/xmlsec1 --verify --pubkey-cert-pem /tmp/tmpJ4XqjT.pem --id-attr:ID urn:oasis:names:tc:SAML:2.0:assertion:Assertion --store-signatures --node-id _c1e08c03-ccf6-4f32-9a96-5e00cc4233e4 --output /tmp/tmpdOFzb_.xml /tmp/tmprHzcov.xml
[20/Nov/2018 09:24:35 -0800] response     DEBUG    assertion context: AuthnReq
[20/Nov/2018 09:24:35 -0800] response     DEBUG    assertion keys: ['authn_statement', 'attribute_statement', 'subject', 'issue_instant', 'version', 'signature', 'conditions', 'id', 'issuer']
[20/Nov/2018 09:24:35 -0800] response     DEBUG    outstanding_queries: {}
[20/Nov/2018 09:24:35 -0800] response     DEBUG    conditions: <?xml version='1.0' encoding='UTF-8'?>
<saml:Conditions xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion" NotBefore="2018-11-20T17:19:34.576Z" NotOnOrAfter="2018-11-20T18:19:34.576Z"><saml:AudienceRestriction><saml:Audience>hue-dev</saml:Audience></saml:AudienceRestriction></saml:Conditions>
[20/Nov/2018 09:24:35 -0800] response     DEBUG    --- Getting Identity ---
[20/Nov/2018 09:24:35 -0800] response     INFO     Subject NameID: <?xml version='1.0' encoding='UTF-8'?>
<saml:NameID xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion" Format="urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress">REDACTED-MY-USER-NAME</saml:NameID>
[20/Nov/2018 09:24:35 -0800] response     DEBUG    Attribute Statement: <?xml version='1.0' encoding='UTF-8'?>
<saml:AttributeStatement xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><saml:Attribute Name="http://schemas.microsoft.com/identity/claims/tenantid" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri"><saml:AttributeValue xmlns:xs="http://www.w3.org/2001/XMLSchema" xsi:type="xs:string">f0ba4e-redacted-client-id-4kha</saml:AttributeValue></saml:Attribute><saml:Attribute Name="http://schemas.microsoft.com/identity/claims/objectidentifier" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri"><saml:AttributeValue xmlns:xs="http://www.w3.org/2001/XMLSchema" xsi:type="xs:string">abd66e79-6e17-43fc-9a51-9eed558cd902</saml:AttributeValue></saml:Attribute><saml:Attribute Name="http://schemas.microsoft.com/identity/claims/displayname" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri"><saml:AttributeValue xmlns:xs="http://www.w3.org/2001/XMLSchema" xsi:type="xs:string">RedactedFirstName RedactedLastName</saml:AttributeValue></saml:Attribute><saml:Attribute Name="http://schemas.microsoft.com/identity/claims/identityprovider" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri"><saml:AttributeValue xmlns:xs="http://www.w3.org/2001/XMLSchema" xsi:type="xs:string">https://sts.windows.net/f0ba4e-redacted-client-id-4kha/</saml:AttributeValue></saml:Attribute><saml:Attribute Name="http://schemas.microsoft.com/claims/authnmethodsreferences" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri"><saml:AttributeValue xmlns:xs="http://www.w3.org/2001/XMLSchema" xsi:type="xs:string">http://schemas.microsoft.com/ws/2008/06/identity/authenticationmethod/password</saml:AttributeValue></saml:Attribute><saml:Attribute Name="http://schemas.xmlsoap.org/ws/2005/05/identity/claims/givenname" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri"><saml:AttributeValue xmlns:xs="http://www.w3.org/2001/XMLSchema" xsi:type="xs:string">RedactedFirstName</saml:AttributeValue></saml:Attribute><saml:Attribute Name="http://schemas.xmlsoap.org/ws/2005/05/identity/claims/surname" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri"><saml:AttributeValue xmlns:xs="http://www.w3.org/2001/XMLSchema" xsi:type="xs:string">RedactedLastName</saml:AttributeValue></saml:Attribute><saml:Attribute Name="http://schemas.xmlsoap.org/ws/2005/05/identity/claims/emailaddress" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri"><saml:AttributeValue xmlns:xs="http://www.w3.org/2001/XMLSchema" xsi:type="xs:string">REDACTED-MY-USER-NAME</saml:AttributeValue></saml:Attribute><saml:Attribute Name="http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri"><saml:AttributeValue xmlns:xs="http://www.w3.org/2001/XMLSchema" xsi:type="xs:string">REDACTED-MY-USER-NAME</saml:AttributeValue></saml:Attribute></saml:AttributeStatement>
[20/Nov/2018 09:24:35 -0800] attribute_converter INFO     Unknown attribute name: <?xml version='1.0' encoding='UTF-8'?>
<saml:Attribute xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" Name="http://schemas.microsoft.com/identity/claims/tenantid" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri"><saml:AttributeValue xmlns:xs="http://www.w3.org/2001/XMLSchema" xsi:type="xs:string">f0ba4e-redacted-client-id-4kha</saml:AttributeValue></saml:Attribute>
[20/Nov/2018 09:24:35 -0800] attribute_converter INFO     Unknown attribute name: <?xml version='1.0' encoding='UTF-8'?>
<saml:Attribute xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" Name="http://schemas.microsoft.com/identity/claims/objectidentifier" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri"><saml:AttributeValue xmlns:xs="http://www.w3.org/2001/XMLSchema" xsi:type="xs:string">abd66e79-6e17-43fc-9a51-9eed558cd902</saml:AttributeValue></saml:Attribute>
[20/Nov/2018 09:24:35 -0800] attribute_converter INFO     Unknown attribute name: <?xml version='1.0' encoding='UTF-8'?>
<saml:Attribute xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" Name="http://schemas.microsoft.com/identity/claims/displayname" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri"><saml:AttributeValue xmlns:xs="http://www.w3.org/2001/XMLSchema" xsi:type="xs:string">RedactedFirstName RedactedLastName</saml:AttributeValue></saml:Attribute>
[20/Nov/2018 09:24:35 -0800] attribute_converter INFO     Unknown attribute name: <?xml version='1.0' encoding='UTF-8'?>
<saml:Attribute xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" Name="http://schemas.microsoft.com/identity/claims/identityprovider" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri"><saml:AttributeValue xmlns:xs="http://www.w3.org/2001/XMLSchema" xsi:type="xs:string">https://sts.windows.net/f0ba4e-redacted-client-id-4kha/</saml:AttributeValue></saml:Attribute>
[20/Nov/2018 09:24:35 -0800] attribute_converter INFO     Unknown attribute name: <?xml version='1.0' encoding='UTF-8'?>
<saml:Attribute xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" Name="http://schemas.microsoft.com/claims/authnmethodsreferences" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri"><saml:AttributeValue xmlns:xs="http://www.w3.org/2001/XMLSchema" xsi:type="xs:string">http://schemas.microsoft.com/ws/2008/06/identity/authenticationmethod/password</saml:AttributeValue></saml:Attribute>
[20/Nov/2018 09:24:35 -0800] attribute_converter INFO     Unknown attribute name: <?xml version='1.0' encoding='UTF-8'?>
<saml:Attribute xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" Name="http://schemas.xmlsoap.org/ws/2005/05/identity/claims/givenname" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri"><saml:AttributeValue xmlns:xs="http://www.w3.org/2001/XMLSchema" xsi:type="xs:string">RedactedFirstName</saml:AttributeValue></saml:Attribute>
[20/Nov/2018 09:24:35 -0800] attribute_converter INFO     Unknown attribute name: <?xml version='1.0' encoding='UTF-8'?>
<saml:Attribute xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" Name="http://schemas.xmlsoap.org/ws/2005/05/identity/claims/surname" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri"><saml:AttributeValue xmlns:xs="http://www.w3.org/2001/XMLSchema" xsi:type="xs:string">RedactedLastName</saml:AttributeValue></saml:Attribute>
[20/Nov/2018 09:24:35 -0800] attribute_converter INFO     Unknown attribute name: <?xml version='1.0' encoding='UTF-8'?>
<saml:Attribute xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" Name="http://schemas.xmlsoap.org/ws/2005/05/identity/claims/emailaddress" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri"><saml:AttributeValue xmlns:xs="http://www.w3.org/2001/XMLSchema" xsi:type="xs:string">REDACTED-MY-USER-NAME</saml:AttributeValue></saml:Attribute>
[20/Nov/2018 09:24:35 -0800] attribute_converter INFO     Unknown attribute name: <?xml version='1.0' encoding='UTF-8'?>
<saml:Attribute xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" Name="http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri"><saml:AttributeValue xmlns:xs="http://www.w3.org/2001/XMLSchema" xsi:type="xs:string">REDACTED-MY-USER-NAME</saml:AttributeValue></saml:Attribute>
[20/Nov/2018 09:24:35 -0800] response     ERROR    Missing Attribute Statement
[20/Nov/2018 09:24:35 -0800] response     DEBUG    --- AVA: {}
[20/Nov/2018 09:24:35 -0800] client_base  INFO     --- ADDED person info ----
[20/Nov/2018 09:24:35 -0800] backends     ERROR    The attributes dictionary is empty
[20/Nov/2018 09:24:35 -0800] backends     ERROR    Could not find saml_user value
[20/Nov/2018 09:24:35 -0800] views        WARNING  Could not authenticate user received in SAML Assertion. Session info: {'authn_info': [('urn:oasis:names:tc:SAML:2.0:ac:classes:Password', [], '2018-11-07T07:43:32.657Z')], 'name_id': <saml2.saml.NameID object at 0x7f6f1a93c690>, 'not_on_or_after': 1542737974, 'session_index': '_c1e08c03-ccf6-4f32-9a96-5e00cc4233e4', 'came_from': None, 'ava': {}, 'issuer': 'https://sts.windows.net/f0ba4e-redacted-client-id-4kha/'}
[20/Nov/2018 09:24:35 -0800] middleware   INFO     Processing exception: : Traceback (most recent call last):
  File "/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/Django-1.6.10-py2.7.egg/django/core/handlers/base.py", line 112, in get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/Django-1.6.10-py2.7.egg/django/db/transaction.py", line 371, in inner
    return func(*args, **kwargs)
  File "/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/Django-1.6.10-py2.7.egg/django/views/decorators/http.py", line 41, in inner
    return func(request, *args, **kwargs)
  File "/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/Django-1.6.10-py2.7.egg/django/views/decorators/csrf.py", line 57, in wrapped_view
    return view_func(*args, **kwargs)
  File "/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/djangosaml2-0.16.4-py2.7.egg/djangosaml2/views.py", line 296, in assertion_consumer_service
    raise PermissionDenied
PermissionDenied

[20/Nov/2018 09:24:35 -0800] access       WARNING  10.85.239.134 -anon- - "POST /saml2/acs/ HTTP/1.1" -- 403 access forbidden
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bgooley
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Registered: ‎04-22-2014

Re: HUE fails with saml

‎11-20-2018 10:01 AM

@Tomas79,

 

That sounds a bit sketchy.  IDPs need to provide their metadata in order for the Service Provider to be configured properly.  Having to create your own metata is error-prone and too much to ask.

 

This page seems to imply that there is a link that you can use to download the metadata for your entity:

 

https://developers.exlibrisgroup.com/blog/SAML-with-Azure

 

I think you should see it in your Azure Portal Single Sign on for your app.  I think it might be called SAML XML Metadata.

 

 

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Tomas79
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Re: HUE fails with saml

‎11-20-2018 10:03 AM

This is your reply related to my previous post, because I already did it, downloaded from the portal. As I posted last time " think using the IDP metadata file from AAD helped a bit," - because there are some new error messages.
And I also posted the full error report, with all elements from the SAML reposnse.

This XML what I used is called Federation metadata in the SSO page of the application.
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bgooley
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Re: HUE fails with saml

‎11-20-2018 10:31 AM

@Tomas79,

 

Sorry about that; I started writing a response and got pulled away so I didn't see that you had already moved on!

 

Great job as now we are at a point where Hue can parse the response and is happy with it.  The problem is now that it cannot map a user from the response data to a Hue user.

 

We see:

 

[20/Nov/2018 09:24:35 -0800] response ERROR Missing Attribute Statement
[20/Nov/2018 09:24:35 -0800] response DEBUG --- AVA: {}
[20/Nov/2018 09:24:35 -0800] client_base INFO --- ADDED person info ----
[20/Nov/2018 09:24:35 -0800] backends ERROR The attributes dictionary is empty
[20/Nov/2018 09:24:35 -0800] backends ERROR Could not find saml_user value
[20/Nov/2018 09:24:35 -0800] views WARNING Could not authenticate user received in SAML Assertion. Session info: {'authn_info': [('urn:oasis:names:tc:SAML:2.0:ac:classes:Password', [], '2018-11-07T07:43:32.657Z')], 'name_id': <saml2.saml.NameID object at 0x7f6f1a93c690>, 'not_on_or_after': 1542737974, 'session_index': '_c1e08c03-ccf6-4f32-9a96-5e00cc4233e4', 'came_from': None, 'ava': {}, 'issuer': 'https://sts.windows.net/f0ba4e-redacted-client-id-4kha/'}

 

By default, Hue will use the following configuration for [libsaml]:

 

username_source=attributes

user_attribute_mapping={'uid': ('username', )}

 

The problem is that you do not have any SAML attribute "uid" in your SAML response so nothing is found to map to the Hue "username".

Another problem is that if you were trying to use attributes (not SAML response nameid) for the Hue username, then the user_attribute_mapping is not correct by default.

 

The following is the format I use with success:

 

user_attribute_mapping='{"uid":"username"}'

 

Since you do not use "uid" in your response, what attribute do you want to use or do you want to use nameId?  If you use NameId, that will map to an email address format in Hue which may not be compatible with other hadoop configuration.  The best thing to do is decide what attribute will have a "logon" user name in Azure SSO and make sure that is included in the response.

 

for testing, though, you can just test to see if this works with NameId by adding this to your [libsaml] section in your Hue safety valve:

 

username_source=nameid

name_id_format="urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress"

 

 

Restart Hue after that.  I am going based on this in your response xml:

 

<saml:NameID Format="urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress">REDACTED-MY-USER-NAME</saml:NameID>

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