org.springframework.security.web.authentication.preauth.x509.X509AuthenticationFilter Maven / Gradle / Ivy
/*
* Copyright 2002-2016 the original author or authors.
*
* 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.
*/
package org.springframework.security.web.authentication.preauth.x509;
import java.security.cert.X509Certificate;
import javax.servlet.http.HttpServletRequest;
import org.springframework.security.web.authentication.preauth.AbstractPreAuthenticatedProcessingFilter;
/**
* @author Luke Taylor
*/
public class X509AuthenticationFilter extends AbstractPreAuthenticatedProcessingFilter {
private X509PrincipalExtractor principalExtractor = new SubjectDnX509PrincipalExtractor();
protected Object getPreAuthenticatedPrincipal(HttpServletRequest request) {
X509Certificate cert = extractClientCertificate(request);
if (cert == null) {
return null;
}
return principalExtractor.extractPrincipal(cert);
}
protected Object getPreAuthenticatedCredentials(HttpServletRequest request) {
return extractClientCertificate(request);
}
private X509Certificate extractClientCertificate(HttpServletRequest request) {
X509Certificate[] certs = (X509Certificate[]) request
.getAttribute("javax.servlet.request.X509Certificate");
if (certs != null && certs.length > 0) {
if (logger.isDebugEnabled()) {
logger.debug("X.509 client authentication certificate:" + certs[0]);
}
return certs[0];
}
if (logger.isDebugEnabled()) {
logger.debug("No client certificate found in request.");
}
return null;
}
public void setPrincipalExtractor(X509PrincipalExtractor principalExtractor) {
this.principalExtractor = principalExtractor;
}
}