My setup is as follows:
Rest APIs (Spring boot)
Front-end application (Angular 8)
Auth Server (Keycloak)
Current scenario:
User enters the username and password in the angular login page.
Angular makes a POST request and gets the access token, refresh token etc. from keycloak server.
In all subsequent request to rest api server(which is bearer only), the access token is passed in
header as "Authorization: Bearer <ACCESS_TOKEN>"
Rest api looks at the role of the user and based on that either returns the desired data or throws a 403 Forbidden exception.
What I want:
To authenticate external users using an api-key and then add rate-limiting to it. For that, i am using Kong API Gateway. For internal or trusted users that login through the angular app, the existing access token flow should work.
Issue:
When using apikey in Kong, it does pass the Kong's authentication but the rest api server still expects an access token and hence get the 401 unauthorized error.
I found the solution for this. Basically you need to configure an anonymous consumer and enable multiple authentication methods using the Kong's key-auth plugin for api-key based security and openid-connect plugin for keycloak based security.
For those who don't have Kong Enterprise, since openid-connect plugin is not open source, you can configure just the key-auth plugin with anonymous access enabled and then handle the keycloak based authentication in your rest application.
Related
I'm having a hard time figuring a good way to implement Oauth 2.0 and OpenID Connect authentication alongside an existing internal email+password authentication for a B2B Web app's API using Spring security.
We have a backend REST API that is a Spring Boot servlet application which currently authenticates users with OAuth 1.0 and the password grant. The front-end is an Angular single-page app through which users must log in with their username and password. The API's /oauth/token endpoint then delivers an opaque access token to be used for fetching secured resources that are then displayed within the app.
We'd like to add the possibility to log in using external authentication with OpenID connect, which is a perfect opportunity for switching to OAuth 2.0 and JWT tokens. Our API would then accept JWT tokens it delivered as well as external JWT tokens emitted by accepted issuers.
Reading and validating JWT tokens won't be a problem using Spring security's OAuth Resource Server. However things get complicated with how to make the classic username+password login flow work with JWT tokens.
We thought about delivering JWT access tokens the same way we used to with our old OAuth 1.0 tokens. The thing is, newer OAuth specifications advise against using the password grant, plus it simply isn't supported in the Spring authorization server project we're planning to use. The authorization-code flow w/ PKCE seems like too much for this case as we do not want the back-end API to render a login form but use credentials entered in the existing login form that is part of the single-page app.
I've read a lot about not using OAuth for 1st party login since its primary use is for external authentication, but again, that doesn't apply since we also want 3rd party authentication.
What would be a secure way to implement a Spring boot authorization server that can deliver JWT access tokens to a 1st party client in exchange for a user's credentials, all this using the existing log in page, and given the password grant type no longer being supported?
I thought about implementing a preliminary step that would be a POST request with Basic authentication to a /login endpoint that just returns a 200 HTTP status, then proceeding to the /oauth2/authorize request that would deliver the authorization code immediately without redirecting since my session is authenticated.
I'll be happy to provide more details if needed. Here are the resources I'm using for this project.
What about setting up an authorization-server capable of identity federation?
In such configuration, the authorization-server is responsible for providing with identities, proxying one or more sources (your existing user database for instance, plus maybe Google, Facebook, Github, etc.)
Keycloak does it for instance.
From the client point of view (your Angular app), the authorization-server is used to get:
access-token: put in Authorization header of requests to secured resource-server(s) (can be a JWT or an opaque string, doesn't matter, clients should not try to extract data from access-tokens)
refresh-token: send to authorization-server to renew access-token before it expires
id-token: get user-profile data (email, username, profile picture, etc.)
You should have a look at https://github.com/damienbod/angular-auth-oidc-client for connecting an Angular app to an OIDC authorization-server.
From resource-server point of view, access-tokens are the source ofr setting-up security-context, either by decoding and validating a JWT locally or with token introspection on authorization-server.
Have a look at those tutorials for such resource-servers configuration.
I have a simple REST API which is a GET service and doesn't require any user login to consume, but I want to protect it using Bearer Token, when I research on this in internet it's been showed that I need to implement bearer token only after user logs in and authenticated. Is there a way in springboot where I can generate a token for my API and give it to client and client calls my API with that and the program validates the same and provides response?
You have the OAuth2TokenGenerator available in Spring Authorization Server.
If I deploy my service in (cloud run) as no-allow-unauthenticated, I can add a user with cloud run invoker role to secure the API. Then user can login to gcloud and set the token in the authorization header to access the service.
My question here is, can I send the Google authorization token via a different header instead of authorization?
The reason why I am using google token is to protect staging(development) env to only allow access to the dev team. My Spring Boot app doesn't need any protection under google platform as it has its own oAuth mechanism - authorization header is being used by spring boot.
Thanks
After a lot time spent, I decided to configure spring boots to deal with another Authorization header name. I left Authorization for GCP.
I have a .net core 3.1 web api authenticated by jwt in the middle ware pipline.Works fine. I converted the web api to a lambda web api by adding a aws Lambda entry class and published into aws with an API Gateway in front
All the endpoints without Authorization attribute worked fine.
All the endpoints with Authorization attribute gets 401.
All request has a jwt Authorization Bearer token header
One endpoint without Authorization attribute reponses with all the headers converted to a string.From that i can see the request's jwt is getting thru to the endpoint.
1.Why isnt the endpoint giving me 401 even tho there is a token?
2.Does AWS lambda or the API getway not pass the header direstly?
3.Do I need to configure the api geteway to send the header to the lamdbda endpoint?
4.Can Lambda authenticate by pipline like a normal web api?
Another solution was to use authorization Lambda with the API GETWAY.
If I use authorization Lambda does that mean my end point wont need the authorization attriibutes any more because it done in the getway?
JWT is generated and authenticated by Firebase.
It works I finally figured the reason. Its so awesome you can have Web api as a Lambda in aws. I can now spend less money in AWS.
I want to get an API token for a specific user using openshift rest api. I have a web application which can be used by any user in my organization. I want to be able to authenticate the user in my application using an internal oauth service, after authentication, i want to authorize the user to be able to call openshift rest apis.
I have found 2 APIs, /authorize and /token which get called up to generate api tokens which can be sent as Bearer 'Token' in the REST APIs headers. But not able to find a way to call them. I have been facing CORS errors calling these APIs using AJAX request.
https://openshift-master.bruxelles.sodigital.io/oauth/authorize?client_id=openshift-browser-client&response_type=code
This url is internal to my organisation which authenticates the employees if not authenticated, and then displays a token on the web page. I want to be able to get that token.