Untitled

package com.prueba.marvelapi.security.filter;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.prueba.marvelapi.security.TokenUtils;
import com.prueba.marvelapi.security.UserDetailsImpl;
import com.prueba.marvelapi.security.dto.AuthCredentials;
import jakarta.servlet.FilterChain;
import jakarta.servlet.ServletException;
import jakarta.servlet.http.HttpServlet;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;

import java.io.IOException;
import java.util.Collections;

public class JWTAutenticationFilter extends UsernamePasswordAuthenticationFilter {

    @Override
    public Authentication attemptAuthentication(HttpServletRequest request, HttpServletResponse response) throws AuthenticationException {
        AuthCredentials authCredentials = new AuthCredentials();

        try {
            authCredentials = new ObjectMapper().readValue(request.getReader(), AuthCredentials.class);
        }catch (IOException e){
            e.printStackTrace();
        }
        UsernamePasswordAuthenticationToken usernamePAT = new UsernamePasswordAuthenticationToken(
                authCredentials.getUsername(),
                authCredentials.getPassword(),
                Collections.emptyList()
        );
        return getAuthenticationManager().authenticate(usernamePAT);
    }
    @Override
    protected void successfulAuthentication(
            HttpServletRequest request,
            HttpServletResponse response,
            FilterChain chain,
            Authentication authResult) throws IOException, ServletException{

        UserDetailsImpl userDetails =  (UserDetailsImpl) authResult.getPrincipal();

        String token = TokenUtils.createToken(userDetails.getUsername(),userDetails.getName());
        response.addHeader("Authorization", "Bearer " + token);
        response.getWriter().flush();
        super.successfulAuthentication(request,response ,chain,authResult);
    }
}