To turn it into an API Gateway, the UI server needs one small tweak.
The user experience with logout of the oauth2 sample in this tutorial is that you logout of the UI app, but not from the authserver, so when you log back into the UI app the autheserver does not challenge again for credentials. To fix that we need to support the CORS protocol which involves a "pre-flight" OPTIONS request and some headers to list the allowed behaviour of the caller. So the "home" controller would need to change so that it sends the header as part of the HTTP request for the greeting resource. Spring Cloud Security has taken care of this for us: by recognising that we has @EnableOAuth2Sso and @EnableZuulProxy it has figured out that (by default) we want to relay the token to the proxied backends. In this section we continue our discussion of how to use Spring Security with Angular in a "single page application". Re-launch the resource server and open the UI up in a new browser window. Spring Security is a framework that focuses on providing both authentication and authorization to Java applications. Here we show how to use Angular to authenticate a user via a form and fetch a secure resource to render in the UI. Next, we implement our own login handler. For example, if we are going to run the new resource on localhost, it could look like this: The UI server is trivial to change: we just need to remove the @RequestMapping for the greeting resource (it was "/resource"). In your application class (in "src/main/java/demo"), add the @RestController annotation and define a new @RequestMapping: Run that application and try to curl the "/resource" endpoint and you will find that it is secure by default: So let’s grab that message in the browser. This is not suitable for a browser based client, but it’s useful for testing. What did Pete Stewart think he knew about efficient implementation of floating point denormals? 1: The @EnableRedisHttpSession annotation creates a Spring bean with the name of springSessionRepositoryFilter that implements Filter.The filter is in charge of replacing the HttpSession implementation to be backed by Spring Session. You only need to log out of 2 apps, and they are part of the same system, as perceived by the user.
Spring Security's authorization system will then pick up the objects from there. To check out what browsers currently support the Same-Site attribute visit: https://caniuse.com/#search=same-site, The example application uses two database tables: app_user and app_session. On the authorization server we can easily add that endpoint. Java™, Java™ SE, Java™ EE, and OpenJDK™ are trademarks of Oracle and/or its affiliates. There are, broadly speaking, three patterns for logout from a UI app that is authenticated as an OAuth2 client: External Authserver (EA, the original sample). We have a nice architecture now with clear responsibilities in three separate components, UI/API Gateway, resource server and authorization server/token granter. It’s secure: We are getting a redirect to a (whitelabel) login page because curl is not sending the same headers that our Angular client will. This configuration should work with any client-side framework. SL only if the session is shared between all apps. To learn more, see our tips on writing great answers. You will need to authenticate with HTTP Basic (browser popup), but the same credentials are valid as for your login form. The user’s information is stored in Redis rather than Tomcat’s HttpSession implementation. “AWS” and “Amazon Web Services” are trademarks or registered trademarks of Amazon.com Inc. or its affiliates. For that, we need an Authentication and a principal object.