content: package com.alibou.security.config;
  
  import com.alibou.security.token.TokenRepository;
  import jakarta.servlet.FilterChain;
  import jakarta.servlet.ServletException;
  import jakarta.servlet.http.HttpServletRequest;
  import jakarta.servlet.http.HttpServletResponse;
  
  import java.beans.Transient;
  import java.io.IOException;
  import java.security.Security;
  
  import jakarta.transaction.TransactionScoped;
  import jakarta.transaction.Transactional;
  import lombok.RequiredArgsConstructor;
  import org.springframework.lang.NonNull;
  import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
  import org.springframework.security.core.context.SecurityContextHolder;
  import org.springframework.security.core.userdetails.UserDetails;
  import org.springframework.security.core.userdetails.UserDetailsService;
  import org.springframework.security.web.authentication.WebAuthenticationDetailsSource;
  import org.springframework.stereotype.Component;
  import org.springframework.web.filter.OncePerRequestFilter;
  
  @Component
  @RequiredArgsConstructor
  public class JwtAuthenticationFilter extends OncePerRequestFilter {
  
    private final JwtService jwtService;
    private final UserDetailsService userDetailsService;
    private final TokenRepository tokenRepository;
  
    @Override
    protected void doFilterInternal(
        @NonNull HttpServletRequest request,
        @NonNull HttpServletResponse response,
        @NonNull FilterChain filterChain
    ) throws ServletException, IOException {
      if (request.getServletPath().contains("/api/v1/auth")) {
        filterChain.doFilter(request, response);
        return;
      }
      final String authHeader = request.getHeader("Authorization");
      final String jwt;
      final String userEmail;
      if (authHeader == null ||!authHeader.startsWith("Bearer ")) {
        filterChain.doFilter(request, response);
        return;
      }
      jwt = authHeader.substring(7);
      userEmail = jwtService.extractUsername(jwt);
      if (userEmail != null && SecurityContextHolder.getContext().getAuthentication() == null) {
        UserDetails userDetails = this.userDetailsService.loadUserByUsername(userEmail);
        var isTokenValid = tokenRepository.findByToken(jwt)
            .map(t -> !t.isExpired() && !t.isRevoked())
            .orElse(false);
        if (jwtService.isTokenValid(jwt, userDetails) && isTokenValid) {
          UsernamePasswordAuthenticationToken authToken = new UsernamePasswordAuthenticationToken(
              userDetails,
              null,
              userDetails.getAuthorities()
          );
          authToken.setDetails(
              new WebAuthenticationDetailsSource().buildDetails(request)
          );
          SecurityContextHolder.getContext().setAuthentication(authToken);
        }
      }
      filterChain.doFilter(request, response);
    }
  }
  