{Disarmed} Re: Google Apps + v3 Idp (again)

Wed Apr 13 10:34:18 EDT 2016

I was offered a metadata download on the SSO Settings page. But that was the bloated one.

That is soooo much better thanks!

BUT it is failing to generate a NameID.

I can confirm that the attribute I set it to use (mail) is getting a value from LDAP:
2016-04-13 15:11:17,421 - DEBUG [net.shibboleth.idp.attribute.resolver.AbstractAttributeDefinition:247] - Attribute Definition 'mail': produced an attribute with the following values [StringAttributeValue{value=Dave.Perry at hull-college.ac.uk}]

But it doesn’t seem to like that when it comes to packaging it…
2016-04-13 15:11:17,573 - DEBUG [net.shibboleth.idp.saml.nameid.impl.AttributeSourcedSAML2NameIDGenerator:183] - Checking for source attribute mail
2016-04-13 15:11:17,574 - INFO [net.shibboleth.idp.saml.nameid.impl.AttributeSourcedSAML2NameIDGenerator:213] - Attribute sources [mail] did not produce a usable identifier
2016-04-13 15:11:17,574 - DEBUG [org.opensaml.saml.saml2.profile.AbstractSAML2NameIDGenerator:92] - No identifier to use
2016-04-13 15:11:17,575 - DEBUG [org.opensaml.saml.saml2.profile.impl.AddNameIDToSubjects:341] - Profile Action AddNameIDToSubjects: Unable to generate a NameID, leaving empty

Should I be adding anything in attribute-filter, or is NameID sufficient (when it behaves)?

_________________________________________________
Dave Perry
eLearning Technologist, Hull College Group

Room L34 - Queens Gardens Library
Wilberforce Drive, Queen's Gardens, Hull, HU1 3DG
Extension 2230 / Direct Dial 01482 381930

* Need a fast reply? Try elearning at hull-college.ac.uk<mailto:elearning at hull-college.ac.uk> *

From: users [mailto:users-bounces at shibboleth.net] On Behalf Of Dan Oachs
Sent: 13 April 2016 14:50
To: Shib Users
Subject: {Disarmed} Re: Google Apps + v3 Idp (again)

I forget exactly where in the Google Apps Admin pages we found a link to the metadata file, but this is what ours looks like.

<EntityDescriptor entityID="google.com" xmlns="urn:oasis:names:tc:SAML:2.0:metadata">
    <SPSSODescriptor protocolSupportEnumeration="urn:oasis:names:tc:SAML:2.0:protocol">
        <NameIDFormat>urn:oasis:names:tc:SAML:1.1:nameid-format:unspecified</NameIDFormat>
        <AssertionConsumerService index="1" Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST"
            Location=MailScanner has detected a possible fraud attempt from "www.google.com" claiming to be "https://www.google.com/a/gustavus.edu/acs"<https://www.google.com/a/gustavus.edu/acs> />
    </SPSSODescriptor>
</EntityDescriptor>

    Thanks,
        Dan Oachs
        Gustavus Adolphus College

On 04/13/2016 08:45 AM, Dave Perry wrote:
Thanks Dan. What was your metadata file? Scott’s reply suggests their one is overly complicated with things that may as well not be there.

Dave

_________________________________________________
Dave Perry
eLearning Technologist, Hull College Group

Room L34 - Queens Gardens Library
Wilberforce Drive, Queen's Gardens, Hull, HU1 3DG
Extension 2230 / Direct Dial 01482 381930

* Need a fast reply? Try elearning at hull-college.ac.uk<mailto:elearning at hull-college.ac.uk> *

From: users [mailto:users-bounces at shibboleth.net] On Behalf Of Dan Oachs
Sent: 13 April 2016 14:07
To: users at shibboleth.net<mailto:users at shibboleth.net>
Subject: {Disarmed} Re: Google Apps + v3 Idp (again)

We recently got idp 3 working for our Google Apps accounts.  Here is what I know:

Added this to relying-party.xml in the shibboleth.RelyingPartyOverrides section.

        <bean parent="RelyingPartyByName" c:relyingPartyIds="google.com">
            <property name="profileConfigurations">
                <list>
                    <bean parent="SAML2.SSO" p:nameIDFormatPrecedence="urn:oasis:names:tc:SAML:2.0:nameid-format:unspecified" p:encryptAssertions="false" />
                </list>
            </property>
        </bean>

Added this to metadata-providers.xml

    <MetadataProvider id="GoogleMD"
                  xsi:type="FilesystemMetadataProvider"
                  xmlns="urn:mace:shibboleth:2.0:metadata"
                  metadataFile="%{idp.home}/metadata/google-metadata.xml"/>

Added this to the saml-nameid.xml file in the shibboleth.SAML2NameIDGenerators section

        <bean parent="shibboleth.SAML2AttributeSourcedGenerator"
            p:format="urn:oasis:names:tc:SAML:2.0:nameid-format:unspecified"
            p:attributeSourceIds="#{ {'principal','uid'} }" />

Hopefully I remembered all the steps but I may have missed something.  Hope that helps anyway.

    Thanks,
        Dan Oachs
        Gustavus Adolphus College

On 04/13/2016 05:22 AM, Dave Perry wrote:
I am utterly confused (nothing new there, but I’ll attempt to explain this one).

I have a relying-party entry which I believe others have used:
                                <bean parent="RelyingPartyByName" c:relyingPartyIds="google.com">
            <property name="profileConfigurations">
                <list>
                        <bean parent="SAML2.SSO" p:nameIDFormatPrecedence="urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress" p:encryptAssertions="false" />
                </list>
            </property>
        </bean>

I have a request from google in my log which asks for NameID as unspecified:
<samlp:AuthnRequest
    AssertionConsumerServiceURL=MailScanner has detected a possible fraud attempt from "www.google.com" claiming to be "https://www.google.com/a/hull-college.ac.uk/acs"<https://www.google.com/a/hull-college.ac.uk/acs>
    ID="achibhchkpnnlacecgddfgbpfdallakncgfgofab" IsPassive="false"
    IssueInstant="2016-04-13T09:39:51Z"
    ProtocolBinding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST"
    ProviderName="google.com" Version="2.0" xmlns:samlp="urn:oasis:names:tc:SAML:2.0:protocol">
    <saml:Issuer xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion">google.com</saml:Issuer>
    <samlp:NameIDPolicy AllowCreate="true" Format="urn:oasis:names:tc:SAML:1.1:nameid-format:unspecified"/>
</samlp:AuthnRequest>

And google’s own metadata download (taken from the GA admin control panel) which has a weird entityID of https://accounts.google.com/o/saml2?idpid=C04au2c47
Which specifies emailAddress as the NameID policy (somewhat contradictory to the request the IdP gets):
<md:NameIDFormat>urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress</md:NameIDFormat>

My error log says there is no entry to handle entityID google.com in relying-party:
2016-04-13 10:39:52,256 - DEBUG [org.opensaml.saml.metadata.resolver.impl.AbstractMetadataResolver:334] - Metadata backing store does not contain any EntityDescriptors with the ID: google.com

Even editing the metadata file they provide, to the following first line:
<md:EntityDescriptor xmlns:md="urn:oasis:names:tc:SAML:2.0:metadata" entityID="google.com" validUntil="2021-04-12T08:53:16.000Z">
Doesn’t work.

Any suggestions appreciated.

Thanks,
Dav

_________________________________________________
Dave Perry
eLearning Technologist, Hull College Group

Room L34 - Queens Gardens Library
Wilberforce Drive, Queen's Gardens, Hull, HU1 3DG
Extension 2230 / Direct Dial 01482 381930

* Need a fast reply? Try elearning at hull-college.ac.uk<mailto:elearning at hull-college.ac.uk> *

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