59 lines
2.3 KiB
Java
59 lines
2.3 KiB
Java
package io.spring.api.security;
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import io.spring.core.service.JwtService;
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import io.spring.core.user.UserRepository;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
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import org.springframework.security.core.context.SecurityContextHolder;
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import org.springframework.security.web.authentication.WebAuthenticationDetailsSource;
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import org.springframework.web.filter.OncePerRequestFilter;
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import javax.servlet.FilterChain;
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import javax.servlet.ServletException;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import java.io.IOException;
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import java.util.Collections;
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import java.util.Optional;
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@SuppressWarnings("SpringJavaAutowiringInspection")
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public class JwtTokenFilter extends OncePerRequestFilter {
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@Autowired
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private UserRepository userRepository;
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@Autowired
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private JwtService jwtService;
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private String header = "Authorization";
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@Override
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protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException {
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getTokenString(request.getHeader(header)).ifPresent(token -> {
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jwtService.getSubFromToken(token).ifPresent(id -> {
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if (SecurityContextHolder.getContext().getAuthentication() == null) {
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userRepository.findById(id).ifPresent(user -> {
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UsernamePasswordAuthenticationToken authenticationToken = new UsernamePasswordAuthenticationToken(
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user,
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null,
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Collections.emptyList()
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);
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authenticationToken.setDetails(new WebAuthenticationDetailsSource().buildDetails(request));
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SecurityContextHolder.getContext().setAuthentication(authenticationToken);
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});
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}
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});
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});
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filterChain.doFilter(request, response);
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}
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private Optional<String> getTokenString(String header) {
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if (header == null || header.split("").length < 2) {
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return Optional.empty();
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} else {
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return Optional.ofNullable(header.split(" ")[1]);
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}
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}
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}
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