HostnameChecker checker = HostnameChecker.getInstance(
HostnameChecker.TYPE_LDAP);
Principal principal = getPeerPrincipal(session);
if (principal instanceof KerberosPrincipal) {
if (!checker.match(hostname, (KerberosPrincipal) principal)) {
throw new SSLPeerUnverifiedException(
"hostname of the kerberos principal:" + principal +
" does not match the hostname:" + hostname);
}
} else {
// get the subject's certificate
certs = session.getPeerCertificates();
X509Certificate peerCert;
if (certs[0] instanceof java.security.cert.X509Certificate) {
peerCert = (java.security.cert.X509Certificate) certs[0];
} else {
throw new SSLPeerUnverifiedException(
"Received a non X509Certificate from the server");
}
checker.match(hostname, peerCert);
}
// no exception means verification passed
return true;
} catch (SSLPeerUnverifiedException e) {
/*
* The application may enable an anonymous SSL cipher suite, and
* hostname verification is not done for anonymous ciphers
*/
String cipher = session.getCipherSuite();
if (cipher != null && (cipher.indexOf("_anon_") != -1)) {
return true;
}
throw e;
} catch (CertificateException e) {
/*
* Pass up the cause of the failure
*/
throw(SSLPeerUnverifiedException)
new SSLPeerUnverifiedException("hostname of the server '" +
hostname +
"' does not match the hostname in the " +
"server's certificate.").initCause(e);
}
}