Package me.josephsf.jobportaljosephsfeir.config

Class JwtAuthenticationEntryPoint

java.lang.Object

me.josephsf.jobportaljosephsfeir.config.JwtAuthenticationEntryPoint

All Implemented Interfaces:

org.springframework.security.web.AuthenticationEntryPoint

@Component
public class JwtAuthenticationEntryPoint
extends Object
implements org.springframework.security.web.AuthenticationEntryPoint

Authentication entry point for handling unauthorized access attempts in the Job Portal application.

This component implements Spring Security's AuthenticationEntryPoint interface to provide a custom response when an unauthenticated user attempts to access a protected resource. Instead of redirecting to a login page, it returns a JSON response with error details.

When authentication fails or a user attempts to access a secured endpoint without proper authentication, this entry point is triggered to handle the exception and format the response.

Since:

2025-05-14

Constructor Summary

Constructors

Constructor	Description
JwtAuthenticationEntryPoint()	Constructs a new JWT authentication entry point.

Method Summary

Modifier and Type	Method	Description
void	commence(jakarta.servlet.http.HttpServletRequest request, jakarta.servlet.http.HttpServletResponse response, org.springframework.security.core.AuthenticationException authException)	Handles an authentication failure by returning a structured JSON error response.

Methods inherited from class java.lang.Object

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

Constructor Details

JwtAuthenticationEntryPoint

public JwtAuthenticationEntryPoint()

Constructs a new JWT authentication entry point.

This default constructor initializes the entry point with no specific configuration. The entry point will format unauthorized errors as JSON responses with HTTP 401 status code.

Method Details

commence

public void commence(jakarta.servlet.http.HttpServletRequest request,
 jakarta.servlet.http.HttpServletResponse response,
 org.springframework.security.core.AuthenticationException authException)
              throws IOException,
jakarta.servlet.ServletException

Handles an authentication failure by returning a structured JSON error response.

This method is called by Spring Security when an AuthenticationException is thrown during the authentication process or when an unauthenticated user attempts to access a secured resource. It creates a JSON response containing error details and sends it to the client.

Specified by:

commence in interface org.springframework.security.web.AuthenticationEntryPoint

Parameters:

request - The HTTP request that resulted in an authentication exception

response - The HTTP response to be modified with error details

authException - The authentication exception that triggered this method

Throws:

IOException - If an I/O error occurs while writing the response

jakarta.servlet.ServletException - If a servlet-related error occurs