feat: add feature to include custom-claims in user-info endpoint of a…

…dmin-ui plugin #2969

jans-config-api/plugins/admin-ui-plugin/src/main/java/io/jans/ca/plugin/adminui/model/auth/UserInfoResponse.java

@@ -14,6 +14,10 @@ public void setClaims(Map<String, Object> claims) {
         this.claims = claims;
     }
 
+    public void addClaims(String key, Object value) {
+        this.claims.put(key, value);
+    }
+
     public String getJwtUserInfo() {
         return jwtUserInfo;
     }

jans-config-api/plugins/admin-ui-plugin/src/main/java/io/jans/ca/plugin/adminui/service/auth/OAuth2Service.java

@@ -134,6 +134,26 @@ public TokenResponse getApiProtectionToken(String userInfoJwt) throws Applicatio
         }
     }
 
+    public Map<String, Object> introspectToken(String accessToken) {
+        log.info("Token introspection from auth-server.");
+        AUIConfiguration auiConfiguration = auiConfigurationService.getAUIConfiguration();
+        Invocation.Builder request = ClientFactory.instance().getClientBuilder(auiConfiguration.getAuthServerIntrospectionEndpoint());
+        request.header("Authorization", "Bearer " + accessToken);
+
+        MultivaluedMap<String, String> body = new MultivaluedHashMap<>();
+        body.putSingle("token", accessToken);
+
+        Response response = request.post(Entity.form(body));
+
+        log.info("Introspection response status code: {}", response.getStatus());
+
+        if (response.getStatus() == 200) {
+            Map<String, Object> entity = response.readEntity(Map.class);
+            log.info("Introspection response entity: {}", entity);
+            return entity;
+        }
+        return null;
+    }
     public UserInfoResponse getUserInfo(UserInfoRequest userInfoRequest) throws ApplicationException {
         try {
             log.debug("Getting User-Info from auth-server: {}", userInfoRequest.getAccessToken());
@@ -151,6 +171,8 @@ public UserInfoResponse getUserInfo(UserInfoRequest userInfoRequest) throws Appl
                 accessToken = tokenResponse.getAccessToken();
             }
             log.debug("Access Token : {}", accessToken);
+            Map<String, Object> introspectionResponse = introspectToken(accessToken);
+
             MultivaluedMap<String, String> body = new MultivaluedHashMap<>();
             body.putSingle("access_token", accessToken);
 
@@ -172,9 +194,11 @@ public UserInfoResponse getUserInfo(UserInfoRequest userInfoRequest) throws Appl
                 UserInfoResponse userInfoResponse = new UserInfoResponse();
                 userInfoResponse.setClaims(getClaims(jwtUserInfo));
                 userInfoResponse.setJwtUserInfo(entity);
+                if(introspectionResponse.get("customClaims") != null) {
+                    userInfoResponse.addClaims("customClaims", introspectionResponse.get("customClaims"));
+                }
 
                 log.debug("User-Info response userInfoResponse: {}", userInfoResponse);
-
                 return userInfoResponse;
             }
 

jans-linux-setup/jans_setup/static/extension/introspection/introspection_github_claims.py

@@ -0,0 +1,87 @@
+# oxAuth is available under the MIT License (2008). See http://opensource.org/licenses/MIT for full text.
+# Copyright (c) 2019, Janssen
+#
+#
+
+from io.jans.model.custom.script.type.introspection import IntrospectionType
+from io.jans.as.server.model.common import AuthorizationGrantList
+from io.jans.as.server.service import SessionIdService
+from io.jans.service.cdi.util import CdiUtil
+from java.lang import String
+
+class Introspection(IntrospectionType):
+    def __init__(self, currentTimeMillis):
+        self.currentTimeMillis = currentTimeMillis
+
+    def init(self, customScript, configurationAttributes):
+        print "Github. Introspection script. Initializing ..."
+        print "Github. Introspection script. Initialized successfully"
+
+        return True
+
+    def destroy(self, configurationAttributes):
+        print "Github. Introspection script. Destroying ..."
+        print "Github. Introspection script. Destroyed successfully"
+        return True
+
+    def getApiVersion(self):
+        return 11
+
+    # Returns boolean, true - apply introspection method, false - ignore it.
+    # This method is called after introspection response is ready. This method can modify introspection response.
+    # Note :
+    # responseAsJsonObject - is org.codehaus.jettison.json.JSONObject, you can use any method to manipulate json
+    # context is reference of io.jans.as.service.external.context.ExternalIntrospectionContext (in https://github.com/JanssenFederation/oxauth project, )
+    def modifyResponse(self, responseAsJsonObject, context):
+        print "Github. Checking for saved parameters in session ..."
+        try:
+            token = context.getHttpRequest().getParameter("token")
+            if token is None:
+                print "Github. Introspection. There is no token in request"
+                return True
+
+            authorizationGrantList = CdiUtil.bean(AuthorizationGrantList)
+            authorizationGrant = authorizationGrantList.getAuthorizationGrantByAccessToken(token)
+            if authorizationGrant is None:
+                print "Github. Introspection. Failed to load authorization grant by token"
+                return False
+
+            # Put user_id into response
+            responseAsJsonObject.accumulate("user_id", authorizationGrant.getUser().getUserId())
+
+            # Put custom parameters into response
+            sessionDn = authorizationGrant.getSessionDn();
+            print "sessionDn '%s'" % sessionDn
+            if sessionDn is None:
+                print "There is no session"
+                return True
+
+            sessionIdService = CdiUtil.bean(SessionIdService)
+            session = sessionIdService.getSessionByDn(sessionDn, False)
+            if sessionDn is None:
+                print "Github. Introspection. Failed to load session '%s'" % sessionDn
+                return False
+
+            # Return session_id
+            responseAsJsonObject.accumulate("session_id", sessionDn)
+
+            sessionAttributes = session.getSessionAttributes()
+            if sessionAttributes is None:
+                print "There is no session attributes"
+                return True
+
+            # Append custom claims
+            customClaims = {}
+
+            if sessionAttributes.containsKey("gihub_username"):
+                customClaims["gihub_username"] = sessionAttributes.get("gihub_username")
+            if sessionAttributes.containsKey("gihub_access_token"):
+                customClaims["gihub_access_token"] = sessionAttributes.get("gihub_access_token")
+
+            responseAsJsonObject.accumulate("customClaims", customClaims)
+        except Exception as e:
+                print "Exception occured. Unable to resolve role/scope mapping."
+                print e
+
+        return True
+