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package com.testAngularRestToken.filter;
import java.io.IOException;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter;
public class JwtAuthenticationFilter extends AbstractAuthenticationProcessingFilter {
public JwtAuthenticationFilter() {
super("/**");
}
@Override
protected boolean requiresAuthentication(HttpServletRequest request, HttpServletResponse response) {
return true;
}
@Override
public Authentication attemptAuthentication(HttpServletRequest request, HttpServletResponse response) throws AuthenticationException {
String authorizationHeader = request.getHeader("Authorization");
if (authorizationHeader == null || !authorizationHeader.startsWith("Bearer")) {
throw new JwtTokenAuthenticationException("No JWT token found in request headers");
}
String token = authorizationHeader.substring("Bearer".length()).trim();
JwtAuthenticationToken authRequest = new JwtAuthenticationToken(token);
return getAuthenticationManager().authenticate(authRequest);
}
@Override
protected void successfulAuthentication(HttpServletRequest request, HttpServletResponse response, FilterChain chain, Authentication authResult)
throws IOException, ServletException {
super.successfulAuthentication(request, response, chain, authResult);
// As this authentication is in HTTP header, after success we need to continue the request normally
// and return the response as if the resource was not secured at all
chain.doFilter(request, response);
}
} |
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