/*
* 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.web.security.x509;
import org.apache.nifi.web.security.NiFiAuthenticationFilter;
import org.apache.nifi.web.security.ProxiedEntitiesUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.security.core.Authentication;
import org.springframework.security.web.authentication.preauth.x509.X509PrincipalExtractor;
import javax.servlet.http.HttpServletRequest;
import java.security.cert.X509Certificate;
/**
* Custom X509 filter that will inspect the HTTP headers for a proxied user before extracting the user details from the client certificate.
*/
public class X509AuthenticationFilter extends NiFiAuthenticationFilter {
private static final Logger logger = LoggerFactory.getLogger(X509AuthenticationFilter.class);
private X509CertificateExtractor certificateExtractor;
private X509PrincipalExtractor principalExtractor;
@Override
public Authentication attemptAuthentication(final HttpServletRequest request) {
// only suppport x509 login when running securely
if (!request.isSecure()) {
return null;
}
// look for a client certificate
final X509Certificate[] certificates = certificateExtractor.extractClientCertificate(request);
if (certificates == null) {
return null;
}
return new X509AuthenticationRequestToken(request.getHeader(ProxiedEntitiesUtils.PROXY_ENTITIES_CHAIN), principalExtractor, certificates, request.getRemoteAddr());
}
/* setters */
public void setCertificateExtractor(X509CertificateExtractor certificateExtractor) {
this.certificateExtractor = certificateExtractor;
}
public void setPrincipalExtractor(X509PrincipalExtractor principalExtractor) {
this.principalExtractor = principalExtractor;
}
}