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JwtFilter.java
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JwtFilter.java
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package org.prime.graphql.security.jwt;
import org.prime.graphql.model.User;
import org.prime.graphql.repository.UserRepository;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
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.web.filter.OncePerRequestFilter;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.Optional;
public class JwtFilter extends OncePerRequestFilter {
private final Logger logger = LoggerFactory.getLogger(this.getClass());
private UserDetailsService userDetailsService;
private JwtTokenUtil jwtTokenUtil;
private String authToken = null;
public JwtFilter(UserDetailsService userDetailsService, JwtTokenUtil jwtTokenUtil) {
this.userDetailsService = userDetailsService;
this.jwtTokenUtil = jwtTokenUtil;
}
@Override
protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain chain) throws ServletException, IOException {
Optional<HttpServletRequest> optReq = Optional.of(request);
authToken = optReq.map(req -> req.getHeader("Authorization")).filter(token -> !token.isEmpty())
.map(token -> token.replace("Bearer ", "")).orElse(null);
if (authToken != null && SecurityContextHolder.getContext().getAuthentication() == null) {
UserDetails userDetails = this.userDetailsService.loadUserByUsername(jwtTokenUtil.getUsernameFromToken(authToken));
if ( userDetails != null && jwtTokenUtil.isTokenValid(authToken, userDetails)) {
UsernamePasswordAuthenticationToken authentication = new UsernamePasswordAuthenticationToken(userDetails, null, userDetails.getAuthorities());
authentication.setDetails(new WebAuthenticationDetailsSource().buildDetails(request));
SecurityContextHolder.getContext().setAuthentication(authentication);
}
}else{
logger.info("token not presented...");
}
chain.doFilter(request, response);
}
}