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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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package com.sun.net.ssl.internal.www.protocol.https;
import java.net.URL;
import java.net.Proxy;
import java.io.IOException;
import java.util.Collection;
import java.util.List;
import java.util.Iterator;
import java.security.Principal;
import java.security.cert.*;
import javax.security.auth.x500.X500Principal;
import sun.security.util.HostnameChecker;
import sun.security.util.DerValue;
import sun.security.x509.X500Name;
import sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection;
This class was introduced to provide an additional level of
abstraction between javax.net.ssl.HttpURLConnection and
com.sun.net.ssl.HttpURLConnection objects.
javax.net.ssl.HttpURLConnection is used in the new sun.net version
of protocol implementation (this one)
com.sun.net.ssl.HttpURLConnection is used in the com.sun version.
/**
* This class was introduced to provide an additional level of
* abstraction between javax.net.ssl.HttpURLConnection and
* com.sun.net.ssl.HttpURLConnection objects. <p>
*
* javax.net.ssl.HttpURLConnection is used in the new sun.net version
* of protocol implementation (this one)
* com.sun.net.ssl.HttpURLConnection is used in the com.sun version.
*
*/
@Deprecated(since="9")
@SuppressWarnings("deprecation") // HttpsURLConnection is deprecated
public class DelegateHttpsURLConnection extends AbstractDelegateHttpsURLConnection {
// we need a reference to the HttpsURLConnection to get
// the properties set there
// we also need it to be public so that it can be referenced
// from sun.net.www.protocol.http.HttpURLConnection
// this is for ResponseCache.put(URI, URLConnection)
// second parameter needs to be cast to javax.net.ssl.HttpsURLConnection
// instead of AbstractDelegateHttpsURLConnection
public com.sun.net.ssl.HttpsURLConnection httpsURLConnection;
DelegateHttpsURLConnection(URL url,
sun.net.www.protocol.http.Handler handler,
com.sun.net.ssl.HttpsURLConnection httpsURLConnection)
throws IOException {
this(url, null, handler, httpsURLConnection);
}
DelegateHttpsURLConnection(URL url, Proxy p,
sun.net.www.protocol.http.Handler handler,
com.sun.net.ssl.HttpsURLConnection httpsURLConnection)
throws IOException {
super(url, p, handler);
this.httpsURLConnection = httpsURLConnection;
}
protected javax.net.ssl.SSLSocketFactory getSSLSocketFactory() {
return httpsURLConnection.getSSLSocketFactory();
}
protected javax.net.ssl.HostnameVerifier getHostnameVerifier() {
// note: getHostnameVerifier() never returns null
return new VerifierWrapper(httpsURLConnection.getHostnameVerifier());
}
/*
* Called by layered delegator's finalize() method to handle closing
* the underlying object.
*/
protected void dispose() throws Throwable {
super.finalize();
}
}
class VerifierWrapper implements javax.net.ssl.HostnameVerifier {
@SuppressWarnings("deprecation")
private com.sun.net.ssl.HostnameVerifier verifier;
@SuppressWarnings("deprecation")
VerifierWrapper(com.sun.net.ssl.HostnameVerifier verifier) {
this.verifier = verifier;
}
/*
* In com.sun.net.ssl.HostnameVerifier the method is defined
* as verify(String urlHostname, String certHostname).
* This means we need to extract the hostname from the X.509 certificate
* in this wrapper.
*/
public boolean verify(String hostname, javax.net.ssl.SSLSession session) {
try {
Certificate[] serverChain = session.getPeerCertificates();
if ((serverChain == null) || (serverChain.length == 0)) {
return false;
}
if (serverChain[0] instanceof X509Certificate == false) {
return false;
}
X509Certificate serverCert = (X509Certificate)serverChain[0];
String serverName = getServername(serverCert);
if (serverName == null) {
return false;
}
return verifier.verify(hostname, serverName);
} catch (javax.net.ssl.SSLPeerUnverifiedException e) {
return false;
}
}
/*
* Extract the name of the SSL server from the certificate.
*
* Note this code is essentially a subset of the hostname extraction
* code in HostnameChecker.
*/
private static String getServername(X509Certificate peerCert) {
try {
// compare to subjectAltNames if dnsName is present
Collection<List<?>> subjAltNames = peerCert.getSubjectAlternativeNames();
if (subjAltNames != null) {
for (Iterator<List<?>> itr = subjAltNames.iterator(); itr.hasNext(); ) {
List<?> next = itr.next();
if (((Integer)next.get(0)).intValue() == 2) {
// compare dNSName with host in url
String dnsName = ((String)next.get(1));
return dnsName;
}
}
}
// else check against common name in the subject field
X500Name subject = HostnameChecker.getSubjectX500Name(peerCert);
DerValue derValue = subject.findMostSpecificAttribute
(X500Name.commonName_oid);
if (derValue != null) {
try {
String name = derValue.getAsString();
return name;
} catch (IOException e) {
// ignore
}
}
} catch (java.security.cert.CertificateException e) {
// ignore
}
return null;
}
}