[keycloak-user] SAML Attribute to Role

[Michael Poettgen]

On Keycloak 3.4.3 I'm trying to use a "SAML Attribute to Role" role mapper to extract roles from a "roles" attribute sent by an external SAML IdP. I know that the attribute has values as when I try to map it to a user attribute I get an exception that the user attribute cannot be saved, because the value exceeds the maximum length of 256. What I don't know is whether the roles are sent in

1 - one attribute with multiple values,
2 - multiple attributes with one value or
3 - one attribute with one concatenated value.

I guess looking at the code that only 2 would work, 3 would be unusual, but 1 should work as well.

Can anyone share his experience with this? At the moment none of my roles get applied.

Thanks,
Michael


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