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/**
* ============LICENSE_START=======================================================
* org.onap.aai
* ================================================================================
* Copyright © 2017-2018 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.aai.logging;
import ch.qos.logback.access.pattern.AccessConverter;
import ch.qos.logback.access.spi.IAccessEvent;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.security.auth.x500.X500Principal;
import javax.servlet.http.HttpServletRequest;
import java.security.cert.X509Certificate;
import static java.util.Base64.getDecoder;
public class CNName extends AccessConverter {
protected static final Logger LOGGER = LoggerFactory.getLogger(CNName.class);
/**
* Converts access events to String response codes
*
* @param accessEvent the IAccessEvent
*/
public String convert(IAccessEvent accessEvent) {
if (!isStarted()) {
return "INACTIVE_HEADER_CONV";
}
String cipherSuite = (String) accessEvent.getRequest().getAttribute("javax.servlet.request.cipher_suite");
String authUser = null;
if (cipherSuite != null) {
try {
X509Certificate certChain[] = (X509Certificate[]) accessEvent.getRequest()
.getAttribute("javax.servlet.request.X509Certificate");
if (certChain == null || certChain.length == 0) {
HttpServletRequest request = accessEvent.getRequest();
String authorization = request.getHeader("Authorization");
// Set the auth user to "-" so if the authorization header is not found
// Or if the decoded basic auth credentials are not found in the format required
// it should return "-"
// If the decoded string is in the right format, find the index of ":"
// Then get the substring of the starting point to the colon not including the colon
authUser = "-";
if (authorization != null && authorization.startsWith("Basic ")) {
String credentials = authorization.replace("Basic ", "");
byte[] userCredentials = getDecoder().decode(credentials.getBytes("utf-8"));
credentials = new String(userCredentials);
int codePoint = credentials.indexOf(':');
if (codePoint != -1) {
authUser = credentials.substring(0, codePoint);
}
}
return authUser;
} else {
X509Certificate clientCert = certChain[0];
X500Principal subjectDN = clientCert.getSubjectX500Principal();
authUser = subjectDN.toString();
return authUser;
}
} catch (Exception e) {
LOGGER.error(e.getMessage(), e);
return "-";
}
} else {
return "-";
}
}
}
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