Package org.dspace.app.rest.exception

Class DSpaceAccessDeniedHandler

java.lang.Object

org.dspace.app.rest.exception.DSpaceAccessDeniedHandler

All Implemented Interfaces:

org.springframework.security.web.access.AccessDeniedHandler

@Component
public class DSpaceAccessDeniedHandler
extends Object
implements org.springframework.security.web.access.AccessDeniedHandler

This Handler customizes behavior of AccessDeniedException errors thrown by Spring Security/Boot.

More specifically, we use this Handler to ensure exceptions related to CSRF Tokens are also sent to our DSpaceApiExceptionControllerAdvice class, which manages all exceptions for the DSpace backend. Without this handler, those CSRF exceptions are managed by Spring Security/Boot *before* DSpaceApiExceptionControllerAdvice is triggered.

Additionally, this Handler is customized to refresh the CSRF Token whenever an InvalidCsrfTokenException occurs. This helps ensure our DSpace server-side token (stored in a server-side cookie) remains "synced" with the token on the client side. If they ever get out of sync, the next request will throw an InvalidCsrfTokenException.

See Also:

DSpaceApiExceptionControllerAdvice

Constructor Summary

Constructors

Constructor	Description
DSpaceAccessDeniedHandler()

Method Summary

Modifier and Type	Method	Description
void	handle(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, org.springframework.security.access.AccessDeniedException ex)	Override handle() to pass these exceptions over to our DSpaceApiExceptionControllerAdvice handler

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DSpaceAccessDeniedHandler

public DSpaceAccessDeniedHandler()

Method Detail

handle

public void handle(javax.servlet.http.HttpServletRequest request,
                   javax.servlet.http.HttpServletResponse response,
                   org.springframework.security.access.AccessDeniedException ex)
            throws IOException,
                   javax.servlet.ServletException

Override handle() to pass these exceptions over to our DSpaceApiExceptionControllerAdvice handler

Specified by:

handle in interface org.springframework.security.web.access.AccessDeniedHandler

Parameters:

request - request

response - response

ex - AccessDeniedException

Throws:

IOException

javax.servlet.ServletException