| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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. |
| */ |
| |
| package org.apache.nifi.minifi.c2.security.authentication; |
| |
| import org.apache.nifi.minifi.c2.util.HttpRequestUtil; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| import org.springframework.beans.factory.annotation.Autowired; |
| import org.springframework.security.authentication.AuthenticationManager; |
| import org.springframework.security.core.Authentication; |
| import org.springframework.security.core.context.SecurityContextHolder; |
| import org.springframework.web.filter.GenericFilterBean; |
| |
| import javax.servlet.FilterChain; |
| import javax.servlet.ServletException; |
| import javax.servlet.ServletRequest; |
| import javax.servlet.ServletResponse; |
| import java.io.IOException; |
| import java.security.cert.X509Certificate; |
| |
| public class X509AuthenticationFilter extends GenericFilterBean { |
| private static final Logger logger = LoggerFactory.getLogger(X509AuthenticationFilter.class); |
| private AuthenticationManager authenticationManager; |
| |
| @Override |
| public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException { |
| authenticateIfPossible(request); |
| chain.doFilter(request, response); |
| } |
| |
| private void authenticateIfPossible(ServletRequest request) { |
| if (!request.isSecure()) { |
| return; |
| } |
| |
| X509Certificate[] certs = (X509Certificate[]) request.getAttribute("javax.servlet.request.X509Certificate"); |
| |
| if (certs == null || certs.length == 0) { |
| if (logger.isDebugEnabled()) { |
| logger.debug("Unable to get certificates in request from " + HttpRequestUtil.getClientString(request)); |
| } |
| return; |
| } |
| |
| Authentication authentication = authenticationManager.authenticate(new X509AuthenticationToken(certs)); |
| if (authentication.isAuthenticated()) { |
| SecurityContextHolder.getContext().setAuthentication(authentication); |
| } |
| } |
| |
| @Autowired |
| public void setAuthenticationManager(AuthenticationManager authenticationManager) { |
| this.authenticationManager = authenticationManager; |
| } |
| } |