| /* |
| * 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.registry.web.security.authentication.x509; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| import org.springframework.stereotype.Component; |
| |
| import javax.servlet.http.HttpServletRequest; |
| import java.security.cert.X509Certificate; |
| |
| /** |
| * Extracts client certificates from Http requests. |
| */ |
| @Component |
| public class X509CertificateExtractor { |
| |
| private final Logger logger = LoggerFactory.getLogger(getClass()); |
| |
| /** |
| * Extract the client certificate from the specified HttpServletRequest or |
| * null if none is specified. |
| * |
| * @param request http request |
| * @return cert |
| */ |
| public X509Certificate[] extractClientCertificate(HttpServletRequest request) { |
| X509Certificate[] certs = (X509Certificate[]) request.getAttribute("javax.servlet.request.X509Certificate"); |
| |
| if (certs != null && certs.length > 0) { |
| return certs; |
| } |
| |
| if (logger.isDebugEnabled()) { |
| logger.debug("No client certificate found in request."); |
| } |
| |
| return null; |
| } |
| |
| } |