[keycloak-dev] Keycloak: NameID/BaseID/EncryptedID from SAML REQUEST is not adding to client session

[rony joy]

We have a requirement to receive Username/EmailId in the Subject/NameID
field of SAML Request. Keycloak then receive that value in a custom
authenticator

and send it to the tokenvalidator for further flow. The idea here is
to omit the step to ask user name from user again if that is present
in the SAMLRequest.

1. In Keycloak I don't see NameID/BaseID/EncryptedId value from the
SAML request is putting in the client session. why?
2. I can see that keycloak is parsing the Subject/Name ID field, but
not adding to the client session? Is the any reason for this?

3. I am willing to fork the repo and do the changes.
4. Please see our SAML request

Please let me know your suggestions and ideas
Rony Joy

<?xml version="1.0" encoding="UTF-8"?><saml2p:AuthnRequest
xmlns:saml2p="urn:oasis:names:tc:SAML:2.0:protocol"
Destination="http://192.168.99.100:9980/auth/realms/saml-demo/protocol/saml"
ForceAuthn="false" ID="daakemmdhjmfajnhpljnckldjmcejllkffegibdj"
IsPassive="false" IssueInstant="2016-10-04T04:42:32.860Z"
Version="2.0"><saml2:Issuer
xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion">http://localhost:8080/employee-sig-idfirst/</saml2:Issuer><ds:Signature
xmlns:ds="http://www.w3.org/2000/09/xmldsig#"><ds:SignedInfo><ds:CanonicalizationMethod
Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/><ds:SignatureMethod
Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1"/><ds:Reference
URI="#daakemmdhjmfajnhpljnckldjmcejllkffegibdj"><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/2000/09/xmldsig#sha1
"/><ds:DigestValue>R4HTkFdDm5tYqRLGb1Wh8QUwa0o=</ds:DigestValue></ds:Reference></ds:SignedInfo><ds:SignatureValue>IokRvOo8z3EES+85HvckmYYXQ/Q8DadiGHJdZmmYGpQ3VZW1MYnlBgeVwc5Dx4wsNGvRPpAsNM7ij9qGhgLUORuqZshb4YFMMqqDTzg4SoHuq2Ol7jdXo3x39hyZGKjoiC7qBxXbSml7j9UixL/7CescKvuh1xTSOBulsM4EefaY+J7Ud8ZSEMaqfCk36OaWZwq+8Ss/aZ6p31oMKu9T2dGTW7DZY3mn4Fz0aVr3lYzkaJAOQ+mMHOK8TDYlmZcc1e9l37KuKR3Z9dBawXdplHHD25vW/C0NnNfxbo90UTgN2kpDlhGSjrxW3XpvqEpEaF3DwR9Q40iD3M0+su6ZXg==</ds:SignatureValue><ds:KeyInfo><ds:X509Data><ds:X509Certificate>MIIC5TCCAc0CBgFWTDcTwDANBgkqhkiG9w0BAQsFADA2MTQwMgYDVQQDDCtodHRwOi8vbG9jYWxo
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KYpXxA==</ds:X509Certificate></ds:X509Data></ds:KeyInfo></ds:Signature>*<saml2:Subject
xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion"><saml2:NameID
Format="urn:oasis:names:tc:SAML:1.1:nameid-format:unspecified">username</saml2:NameID></saml2:Subject>*<saml2p:NameIDPolicy
AllowCreate="true"
Format="urn:oasis:names:tc:SAML:1.1:nameid-format:unspecified"/></saml2p:AuthnRequest>