Spring Boot HandlerInterceptor not triggered when a request is authenticated - spring

As described in the title, the interceptor is only triggered if the request does not contain the required auth token. With the token, the interceptor does not get triggerd...
How can this be prevented so that the interceptor gets triggerd on all requests?

You need to set the order property to the lowest.
Maybe #Order(Ordered.LOWEST_PRECEDENCE) might do the job.
If not, check this out: https://kreepcode.com/spring-boot-define-execution-order-multiple-interceptors/

Related

How can I add few auth steps in spring boot + spring security?

I have a spring boot application with spring security. It works fine.
I call HTTP://localhost:8080/test request
AuthenticationProvider catches this request and authenticates the user.
MyController starts working
Now I need to add license checking to this chain.
I call HTTP://localhost:8080/test request
AuthenticationProvider catches this request and authenticates the user.
Somebody checks the license and redirect to the next step or returns an exception
if the 3-th step is a success - MyController starts working
I need to understand who is Somebody on 3-th step - Interceptor, Filter, or something else?
I would create a CustomAuthenticationProvider that is using the underlying default functionality for authentication and additionally does your licence checking.

Inspect request body within a spring security filter

Basic Spring Security is great as it comes with WebSecurity (preventing malformed URLs) along with setting up authentication and authorization.
As part of authenticating my web request, the digest of the request body needs to be verified against the digest value passed in the http header. Setting up the Spring Security filter, forces my auth filter to process a firewalled request. The firewalled request doesn't seem to expose the request body to the filter.
What is the correct way to set up the Spring Security filter so that I can inspect the request body?
Thanks!
In Spring Security there are many filter classes built in for to be extended and used for specific purposes. As in my experience most of (or all of them) have methods with overloads which have access to,
HttpServletRequest request, HttpServletResponse response
as method arguments, so that those can be used inside the method.
When the filter class is met with any request, these variables are then populated with related data thus the code inside the methods output as expected.

Spring security exception handler

I have spring oauth2 authorization server with authorization_code and refresh_token grant types client. Sometimes it happens that used refresh_token is not valid, which causes long and ugly exception in logs:
org.springframework.security.oauth2.common.exceptions.InvalidGrantException: Invalid refresh token: xxxxxxxx-yyyy-xxxx-yyyy-xxxxxxxxxxxx
at org.springframework.security.oauth2.provider.token.DefaultTokenServices.refreshAccessToken(DefaultTokenServices.java:142) ~[spring-security-oauth2-2.2.1.RELEASE.jar!/:na]
at org.springframework.security.oauth2.provider.refresh.RefreshTokenGranter.getAccessToken(RefreshTokenGranter.java:47) ~[spring-security-oauth2-2.2.1.RELEASE.jar!/:na]
at org.springframework.security.oauth2.provider.token.AbstractTokenGranter.grant(AbstractTokenGranter.java:65) ~[spring-security-oauth2-2.2.1.RELEASE.jar!/:na]
at org.springframework.security.oauth2.provider.CompositeTokenGranter.grant(CompositeTokenGranter.java:38) ~[spring-security-oauth2-2.2.1.RELEASE.jar!/:na]
[...]
Is it there anything like #RestControllerAdvice which would handle such exceptions?
I already tried using mentioned #RestControllerAdvice, but unfortunately it didn't work.
I am not very familiarized with Spring OAUTH2 Authorization, however my answer might be helpful for you.
#RestControllerAdvice is designed to assist #RestController therefore it works if the request is handled by the DispatcherServlet. However, security-related exceptions occurs before that as it is thrown by Filters. Hence, it is required to insert a custom filter AccessDeniedHandler implementation and AuthenticationEntryPoint implementation) earlier in the chain to catch the exception and return accordingly. These filters can be inserted easily in your web security configurations.
Here you can learn how to detect an Authentication Failure in the Client.
You could also check this tutorial .

How does spring security maintain authentication information between request?

How does spring security maintain authentication info between requests?
Does it use any thing similar to jSessionId or uses an entirely different mechanism.
Further, I see that the AbstractSecurityInterceptor (I mean, any of it's implementations) is responsible for intercepting the incoming request and verify if a request is already authorized using Authentication.isAuthenticated() and then depending on the condition either validate the request or send the Authentication request to an AuthenticationManager Implementation. So, in other words, how does AbstractSecurityInterceptor differentiate between first request and subsequent request.
Spring Security uses a SecurityContextRepository to store and retrieve the SecurityContext for the current security session.
The default implementation is the HttpSessionSecurityContextRepository which utilizes the javax.servlet.http.HttpSession to store/retrieve the SecurityContext.
The underlying servlet container will obtain the correct HttpSession for the incoming request, generally due to a session identifier being passed in a cookie or request parameter. For Spring Security it doesn't matter as that is thus loaded of to the underlying servlet container.

For validating session attribute, which is better in spring - Interceptor or Spring AOP?

In my application, after a user is logged in, every time he sends a request (get/post), before calling the method in controller, i want to verify the session attribute set in the request (i set a session attribute during his login). I see that this can be implemented through spring interceptors (OR) spring AOP. which one should i use?. I have a feeling interceptors are outdated. Or is there a way in spring security which does this for me?
So you want this intercept to happen only for all the controller methods ..? Does the controller have Base URL that its getting invoked for (post/get/delete)...? Is it more like you want to intercept the http request for a particualt URL ..? like this one
<intercept-url pattern="/styles/**" filters=" .." />
If your use case is boiled down to a particular URL pattern then you can write a custom filter extending GenericFilterBean and you can plug it to the filters attribute.So this will get called for every request matching url pattern and in your custom filter you can do whatever you wanted to do.
What if you try implementing a simple Filter? You can extend already existing Spring filter, or create your own by implementing javax.servlet.Filter
The spring security way seems the best way to me with access to specific roles also can be assigned. very good example given in http://www.mkyong.com/spring-security/spring-security-form-login-using-database/

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