adding auth0 specific endpoint for custom claims

Author: Sachin Maheshwari

src/main/java/com/appirio/tech/core/service/identity/resource/UserResource.java

@@ -753,6 +753,43 @@ public ApiResponse login(
         return ApiResponseFactory.createResponse(user);
     }
 
+   /**
+     * API to return roles for a user (by email)
+     * This is supposed to be called from Auth0 custom connection (needed for social logins).
+     * @param email
+     * @param request
+     * @return
+     * @throws Exception
+     */
+    @POST
+    @Path("/roles")
+    @Consumes("application/x-www-form-urlencoded")
+    @Timed
+    public ApiResponse roles(
+            @FormParam("email") String email,
+            @Context HttpServletRequest request) throws Exception {
+
+        if(Utils.isEmpty(email))
+            throw new APIRuntimeException(SC_BAD_REQUEST, String.format(MSG_TEMPLATE_MANDATORY, "email"));
+
+        User user = userDao.findUserByEmail(email);
+
+        if(user==null) {
+            throw new APIRuntimeException(SC_UNAUTHORIZED, "Credentials are incorrect.");
+        }
+
+        List<Role> roles = null;
+        if (user.getId() != null) {
+            roles = roleDao.getRolesBySubjectId(Long.parseLong(user.getId().getId()));
+        }
+        user.setRoles(roles);
+
+        // temp - just for testing
+        user.setRegSource(userDao.generateSSOToken(Long.parseLong(user.getId().getId())));
+
+        return ApiResponseFactory.createResponse(user);
+    }
+
     //TODO: should be PATCH?
     @PUT
     @Path("/activate")