mirror of
https://codeberg.org/Mercury-IM/Smack
synced 2024-12-25 05:47:58 +01:00
10c59457ca
git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/trunk@3309 b35dd754-fafc-0310-a699-88a17e54d16e
184 lines
7.3 KiB
Java
184 lines
7.3 KiB
Java
/**
|
|
* $RCSfile$
|
|
* $Revision: $
|
|
* $Date: $
|
|
*
|
|
* Copyright 2003-2005 Jive Software.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
package org.jivesoftware.smack;
|
|
|
|
import javax.net.ssl.X509TrustManager;
|
|
import java.io.FileInputStream;
|
|
import java.security.*;
|
|
import java.security.cert.CertificateException;
|
|
import java.security.cert.X509Certificate;
|
|
import java.util.Date;
|
|
|
|
/**
|
|
* Trust manager that checks all certificates presented by the server. This class
|
|
* is used during TLS negotiation. It is possible to disable/enable some or all checkings
|
|
* by configuring the {@link ConnectionConfiguration}. The truststore file that contains
|
|
* knows and trusted CA root certificates can also be configure in {@link ConnectionConfiguration}.
|
|
*
|
|
* @author Gaston Dombiak
|
|
*/
|
|
class ServerTrustManager implements X509TrustManager {
|
|
|
|
private ConnectionConfiguration configuration;
|
|
|
|
/**
|
|
* Holds the domain of the remote server we are trying to connect
|
|
*/
|
|
private String server;
|
|
private KeyStore trustStore;
|
|
|
|
public ServerTrustManager(String server, ConnectionConfiguration configuration) {
|
|
this.configuration = configuration;
|
|
this.server = server;
|
|
|
|
try {
|
|
trustStore = KeyStore.getInstance(configuration.getTruststoreType());
|
|
trustStore.load(new FileInputStream(configuration.getTruststorePath()),
|
|
configuration.getTruststorePassword().toCharArray());
|
|
}
|
|
catch (Exception e) {
|
|
e.printStackTrace();
|
|
// Disable root CA checking
|
|
configuration.setVerifyRootCAEnabled(false);
|
|
}
|
|
}
|
|
|
|
public X509Certificate[] getAcceptedIssuers() {
|
|
return new X509Certificate[0];
|
|
}
|
|
|
|
public void checkClientTrusted(X509Certificate[] arg0, String arg1)
|
|
throws CertificateException {
|
|
}
|
|
|
|
public void checkServerTrusted(X509Certificate[] x509Certificates, String arg1)
|
|
throws CertificateException {
|
|
|
|
int nSize = x509Certificates.length;
|
|
|
|
String peerIdentity = getPeerIdentity(x509Certificates[0]);
|
|
|
|
if (configuration.isVerifyChainEnabled()) {
|
|
// Working down the chain, for every certificate in the chain,
|
|
// verify that the subject of the certificate is the issuer of the
|
|
// next certificate in the chain.
|
|
Principal principalLast = null;
|
|
for (int i = nSize -1; i >= 0 ; i--) {
|
|
X509Certificate x509certificate = x509Certificates[i];
|
|
Principal principalIssuer = x509certificate.getIssuerDN();
|
|
Principal principalSubject = x509certificate.getSubjectDN();
|
|
if (principalLast != null) {
|
|
if (principalIssuer.equals(principalLast)) {
|
|
try {
|
|
PublicKey publickey =
|
|
x509Certificates[i + 1].getPublicKey();
|
|
x509Certificates[i].verify(publickey);
|
|
}
|
|
catch (GeneralSecurityException generalsecurityexception) {
|
|
throw new CertificateException(
|
|
"signature verification failed of " + peerIdentity);
|
|
}
|
|
}
|
|
else {
|
|
throw new CertificateException(
|
|
"subject/issuer verification failed of " + peerIdentity);
|
|
}
|
|
}
|
|
principalLast = principalSubject;
|
|
}
|
|
}
|
|
|
|
if (configuration.isVerifyRootCAEnabled()) {
|
|
// Verify that the the last certificate in the chain was issued
|
|
// by a third-party that the client trusts.
|
|
boolean trusted = false;
|
|
try {
|
|
trusted = trustStore.getCertificateAlias(x509Certificates[nSize - 1]) != null;
|
|
if (!trusted && nSize == 1 && configuration.isSelfSignedCertificateEnabled())
|
|
{
|
|
System.out.println("Accepting self-signed certificate of remote server: " +
|
|
peerIdentity);
|
|
trusted = true;
|
|
}
|
|
}
|
|
catch (KeyStoreException e) {
|
|
e.printStackTrace();
|
|
}
|
|
if (!trusted) {
|
|
throw new CertificateException("root certificate not trusted of " + peerIdentity);
|
|
}
|
|
}
|
|
|
|
if (configuration.isNotMatchingDomainCheckEnabled()) {
|
|
// Verify that the first certificate in the chain corresponds to
|
|
// the server we desire to authenticate.
|
|
// Check if the certificate uses a wildcard indicating that subdomains are valid
|
|
if (peerIdentity.startsWith("*.")) {
|
|
// Remove the wildcard
|
|
peerIdentity = peerIdentity.substring(2);
|
|
// Check if the requested subdomain matches the certified domain
|
|
if (!server.endsWith(peerIdentity)) {
|
|
throw new CertificateException("target verification failed of " + peerIdentity);
|
|
}
|
|
}
|
|
else if (!server.equals(peerIdentity)) {
|
|
throw new CertificateException("target verification failed of " + peerIdentity);
|
|
}
|
|
}
|
|
|
|
if (configuration.isExpiredCertificatesCheckEnabled()) {
|
|
// For every certificate in the chain, verify that the certificate
|
|
// is valid at the current time.
|
|
Date date = new Date();
|
|
for (int i = 0; i < nSize; i++) {
|
|
try {
|
|
x509Certificates[i].checkValidity(date);
|
|
}
|
|
catch (GeneralSecurityException generalsecurityexception) {
|
|
throw new CertificateException("invalid date of " + server);
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
/**
|
|
* Returns the identity of the remote server as defined in the specified certificate. The
|
|
* identity is defined in the subjectDN of the certificate and it can also be defined in
|
|
* the subjectAltName extension of type "xmpp". When the extension is being used then the
|
|
* identity defined in the extension in going to be returned. Otherwise, the value stored in
|
|
* the subjectDN is returned.
|
|
*
|
|
* @param x509Certificate the certificate the holds the identity of the remote server.
|
|
* @return the identity of the remote server as defined in the specified certificate.
|
|
*/
|
|
public static String getPeerIdentity(X509Certificate x509Certificate) {
|
|
Principal principalSubject = x509Certificate.getSubjectDN();
|
|
// TODO Look the identity in the subjectAltName extension if available
|
|
String name = principalSubject.getName();
|
|
if (name.startsWith("CN=")) {
|
|
// Remove the CN= prefix
|
|
name = name.substring(3);
|
|
}
|
|
return name;
|
|
}
|
|
|
|
}
|