org.glassfish.loadbalancer.admin.cli.connection.SSLHostNameVerifier Maven / Gradle / Ivy
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package org.glassfish.loadbalancer.admin.cli.connection;
import javax.net.ssl.SSLSession;
import javax.net.ssl.HostnameVerifier;
import javax.security.auth.x500.X500Principal;
import java.security.cert.X509Certificate;
import java.security.cert.Certificate;
import org.glassfish.loadbalancer.admin.cli.LbLogUtil;
/**
*
* @author sv96363
*/
public class SSLHostNameVerifier implements HostnameVerifier {
/**
* matches the hostname of the Load balancer to CN attribute of the
* certificate obtained.
* @param hostname hostname of the load balancer
* @param session SSL session information
* @return true - if the LB host name and CN attribute in the certificate
* matches, false otherwise
*/
@Override
public boolean verify(String hostname, SSLSession session) {
if (session != null) {
Certificate[] certs = null;
try {
certs = session.getPeerCertificates();
} catch (Exception e) {
}
if (certs == null) {
String msg = LbLogUtil.getStringManager().getString("NoPeerCert", hostname);
LbLogUtil.getLogger().warning(msg);
return false;
}
for (int i = 0; i < certs.length; i++) {
if (certs[i] instanceof X509Certificate) {
X500Principal prin =
((X509Certificate) certs[i]).getSubjectX500Principal();
String hName = null;
String dn = prin.getName();
// Look for name of the cert in the CN attribute
int cnIdx = dn.indexOf("CN=");
if (cnIdx != -1) {
String cnStr = dn.substring(cnIdx, dn.length());
int commaIdx = cnStr.indexOf(",");
// if the CN is the last element in the string, then
// there won't be a ',' after that.
// The principal could be either CN=chandu.sfbay,C=US
// or C=US,CN=chandu.sfbay
if (commaIdx == -1) {
commaIdx = dn.length();
}
hName = dn.substring(cnIdx + 3, commaIdx);
}
if (hostname.equals(hName)) {
return true;
}
} else {
String msg = LbLogUtil.getStringManager().getString("NotX905Cert", hostname);
LbLogUtil.getLogger().warning(msg);
}
}
// Now, try to match if it matches the hostname from the SSLSession
if (hostname.equals(session.getPeerHost())) {
return true;
}
}
if (session != null) {
String msg = LbLogUtil.getStringManager().getString("NotCertMatch",
hostname, new String(session.getId()));
LbLogUtil.getLogger().warning(msg);
}
return false;
}
}