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/*
*
* * ============LICENSE_START=======================================================
* * org.onap.dcae
* * ================================================================================
* * Copyright (c) 2020 AT&T Intellectual Property. All rights reserved.
* * ================================================================================
* * Licensed under the Apache License, Version 2.0 (the "License");
* * you may not use this file except in compliance with the License.
* * You may obtain a copy of the License at
* *
* * http://www.apache.org/licenses/LICENSE-2.0
* *
* * Unless required by applicable law or agreed to in writing, software
* * distributed under the License is distributed on an "AS IS" BASIS,
* * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* * See the License for the specific language governing permissions and
* * limitations under the License.
* * ============LICENSE_END=========================================================
*
*/
package org.onap.dcaegen2.platform.mod.security.jwt;
import org.onap.dcaegen2.platform.mod.security.services.UserDetailsServiceImpl;
import lombok.extern.slf4j.Slf4j;
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.web.authentication.WebAuthenticationDetailsSource;
import org.springframework.util.StringUtils;
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;
/**
* @author
* @date 09/08/2020
* Authentication Token Filter
*/
@Slf4j
public class AuthTokenFilter extends OncePerRequestFilter {
@Autowired
private JwtUtils jwtUtils;
@Autowired
private UserDetailsServiceImpl userDetailsService;
@Override
protected void doFilterInternal(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, FilterChain filterChain) throws ServletException, IOException {
try{
String jwt = parseJwt(httpServletRequest);
if (jwt != null && jwtUtils.validateJwtToken(jwt)){
String username = jwtUtils.getUserNameFromJwtToken(jwt);
UserDetails userDetails = userDetailsService.loadUserByUsername(username);
UsernamePasswordAuthenticationToken authenticationToken =
new UsernamePasswordAuthenticationToken(userDetails, null, userDetails.getAuthorities());
authenticationToken.setDetails(new WebAuthenticationDetailsSource().buildDetails(httpServletRequest));
SecurityContextHolder.getContext().setAuthentication(authenticationToken);
}
}catch (Exception e){
logger.error("Cannot set user authentication: {}", e);
}
filterChain.doFilter(httpServletRequest, httpServletResponse);
}
private String parseJwt(HttpServletRequest httpServletRequest) {
String headerAuth = httpServletRequest.getHeader("Authorization");
if(StringUtils.hasText(headerAuth) && headerAuth.startsWith("Bearer ")){
return headerAuth.substring(7, headerAuth.length());
}
return null;
}
}
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