WSO2 Self contained AccessToken claims configuration -- the "sub" field - jwt

Question

I am working on WSO2IS, and had been able to get a self contained access token out of WSO2IS by Oauth2 "password" grant type by following this post
I am also able to verify the signature of the token in application (see this post)
yet there is still one final step that I can not pass
here is a sample of access token I have got out of WSO2IS
{iss=https://localhost:9443/oauth2/token, sub=wjz#carbon.super, aud=[J3lbMMMJFwXB6neKzXv030S9lfga], exp=1488710173, iat=1488706573, azp=J3lbMMMJFwXB6neKzXv030S9lfga}
you can see that value of "sub" is a username, which correspond to the claim " http://wso2.org/claims/username".
I want to change the configure in WSO2IS so that the "sub" correspond to claim " http://wso2.org/claims/userid"
I changed the "Claim Configuration" under "Service Providers";
I also changed the "sub" in the "http://wso2.org/oidc/claim" under "Claims". but can not get any success.
are there anything I have missed?
please advise
thanks

Answer 1

I finally have this problem solved by coding instead of configuring.
I had implemented an extension for a Self-Contained Access Token (JWT in Oauth2) Generator by followed this post . I build the jar, and upload the jar under /repository/components/lib/
I just checkout this repo , and made the following changes
/**
* For a locally authenticated user, subject identifier is supposed to be as below.
* <userstore_domain>/<username>#<tenant_domain>.
*
* yet somehow, what I got is <username>#<tenant_domain>
* #param SubjectId
* #return
* #throws IdentityOAuth2Exception
*/
private static SubjectTriple parseSubjectId(String subjectId) throws IdentityOAuth2Exception{
if (StringUtils.isBlank(subjectId)){
throw new IdentityOAuth2Exception("invalid subject identifier");
}
/*
* domain may not present
*/
String sid = null;
SubjectTriple st = new SubjectTriple();
if(StringUtils.contains(subjectId, '/')){
st.domain = StringUtils.substringBeforeLast(subjectId, "/");
sid = StringUtils.substringAfterLast(subjectId, "/");
}else{
sid = subjectId;
}
st.username = StringUtils.substringBeforeLast(sid, "#");
st.profile = StringUtils.substringAfterLast(sid, "#");
return st;
}
/**
* To build id token from OauthToken request message context
*
* #param request Token request message context
* #return Signed jwt string.
* #throws IdentityOAuth2Exception
*/
protected String buildIDToken(OAuthTokenReqMessageContext request)
throws IdentityOAuth2Exception {
String issuer = OAuth2Util.getIDTokenIssuer();
long lifetimeInMillis = OAuthServerConfiguration.getInstance().
getApplicationAccessTokenValidityPeriodInSeconds() * 1000;
long curTimeInMillis = Calendar.getInstance().getTimeInMillis();
SubjectTriple triple = parseSubjectId(request.getAuthorizedUser().getAuthenticatedSubjectIdentifier());
String userId = null;
try {
userId = CarbonContext.getThreadLocalCarbonContext().getUserRealm().getUserStoreManager()
.getUserClaimValue(triple.username, Constants.LOCAL_CLAIM__UserID, triple.profile);
} catch (UserStoreException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
String clientId = request.getOauth2AccessTokenReqDTO().getClientId();
// Set claims to jwt token.
JWTClaimsSet jwtClaimsSet = new JWTClaimsSet();
jwtClaimsSet.setIssuer(issuer);
jwtClaimsSet.setSubject(userId);
jwtClaimsSet.setAudience(Arrays.asList(clientId));
jwtClaimsSet.setClaim(Constants.AUTHORIZATION_PARTY, clientId);
jwtClaimsSet.setExpirationTime(new Date(curTimeInMillis + lifetimeInMillis));
jwtClaimsSet.setIssueTime(new Date(curTimeInMillis));
if (JWSAlgorithm.NONE.getName().equals(signatureAlgorithm.getName())) {
return new PlainJWT(jwtClaimsSet).serialize();
}
return signJWT(jwtClaimsSet, request);
}
/**
* Build a signed jwt token from authorization request message context
*
* #param request Oauth authorization message context
* #return Signed jwt string
* #throws IdentityOAuth2Exception
*/
protected String buildIDToken(OAuthAuthzReqMessageContext request)
throws IdentityOAuth2Exception {
String issuer = OAuth2Util.getIDTokenIssuer();
long lifetimeInMillis = OAuthServerConfiguration.getInstance().
getApplicationAccessTokenValidityPeriodInSeconds() * 1000;
long curTimeInMillis = Calendar.getInstance().getTimeInMillis();
OAuth2AuthorizeReqDTO dto = request.getAuthorizationReqDTO();
SubjectTriple triple = parseSubjectId(dto.getUser().getAuthenticatedSubjectIdentifier());
String userId = null;
try {
userId = CarbonContext.getThreadLocalCarbonContext().getUserRealm().getUserStoreManager()
.getUserClaimValue(triple.username, Constants.LOCAL_CLAIM__UserID, triple.profile);
} catch (UserStoreException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
String consumerKey = dto.getConsumerKey();
JWTClaimsSet jwtClaimsSet = new JWTClaimsSet();
jwtClaimsSet.setIssuer(issuer);
jwtClaimsSet.setSubject(userId);
jwtClaimsSet.setAudience(Arrays.asList(consumerKey));
jwtClaimsSet.setClaim(Constants.AUTHORIZATION_PARTY,consumerKey);
jwtClaimsSet.setExpirationTime(new Date(curTimeInMillis + lifetimeInMillis));
jwtClaimsSet.setIssueTime(new Date(curTimeInMillis));
if (JWSAlgorithm.NONE.getName().equals(signatureAlgorithm.getName())) {
return new PlainJWT(jwtClaimsSet).serialize();
}
return signJWT(jwtClaimsSet, request);
}
the imports
import com.nimbusds.jose.Algorithm;
import com.nimbusds.jose.JOSEException;
import com.nimbusds.jose.JWSAlgorithm;
import com.nimbusds.jose.JWSHeader;
import com.nimbusds.jose.JWSSigner;
import com.nimbusds.jose.crypto.RSASSASigner;
import com.nimbusds.jwt.JWTClaimsSet;
import com.nimbusds.jwt.PlainJWT;
import com.nimbusds.jwt.SignedJWT;
import org.apache.commons.lang.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.oltu.oauth2.common.exception.OAuthSystemException;
import org.wso2.carbon.base.MultitenantConstants;
import org.wso2.carbon.context.CarbonContext;
import org.wso2.carbon.core.util.KeyStoreManager;
import org.wso2.carbon.identity.core.util.IdentityTenantUtil;
import org.wso2.carbon.identity.oauth.config.OAuthServerConfiguration;
import org.wso2.carbon.identity.oauth2.IdentityOAuth2Exception;
import org.wso2.carbon.identity.oauth2.authz.OAuthAuthzReqMessageContext;
import org.wso2.carbon.identity.oauth2.dto.OAuth2AuthorizeReqDTO;
import org.wso2.carbon.identity.oauth2.token.OAuthTokenReqMessageContext;
import org.wso2.carbon.identity.oauth2.token.OauthTokenIssuerImpl;
import org.wso2.carbon.identity.oauth2.util.OAuth2Util;
import org.wso2.carbon.user.api.UserStoreException;
import java.security.Key;
import java.security.interfaces.RSAPrivateKey;
import java.util.Arrays;
import java.util.Calendar;
import java.util.Date;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;