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| 1 | +/* | |
| 2 | + * Copyright (c) 2001, 2009, Oracle and/or its affiliates. All rights reserved. | |
| 3 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 | + * | |
| 5 | + * This code is free software; you can redistribute it and/or modify it | |
| 6 | + * under the terms of the GNU General Public License version 2 only, as | |
| 7 | + * published by the Free Software Foundation. Oracle designates this | |
| 8 | + * particular file as subject to the "Classpath" exception as provided | |
| 9 | + * by Oracle in the LICENSE file that accompanied this code. | |
| 10 | + * | |
| 11 | + * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 | + * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 | + * accompanied this code). | |
| 16 | + * | |
| 17 | + * You should have received a copy of the GNU General Public License version | |
| 18 | + * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 | + * | |
| 21 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 | + * or visit www.oracle.com if you need additional information or have any | |
| 23 | + * questions. | |
| 24 | + */ | |
| 25 | + | |
| 26 | +package com.sun.net.ssl.internal.www.protocol.https; | |
| 27 | + | |
| 28 | +import java.net.URL; | |
| 29 | +import java.net.Proxy; | |
| 30 | +import java.io.IOException; | |
| 31 | +import java.util.Collection; | |
| 32 | +import java.util.List; | |
| 33 | +import java.util.Iterator; | |
| 34 | + | |
| 35 | +import java.security.Principal; | |
| 36 | +import java.security.cert.*; | |
| 37 | + | |
| 38 | +import javax.security.auth.x500.X500Principal; | |
| 39 | + | |
| 40 | +import sun.security.util.HostnameChecker; | |
| 41 | +import sun.security.util.DerValue; | |
| 42 | +import sun.security.x509.X500Name; | |
| 43 | + | |
| 44 | +import sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection; | |
| 45 | + | |
| 46 | +/** | |
| 47 | + * This class was introduced to provide an additional level of | |
| 48 | + * abstraction between javax.net.ssl.HttpURLConnection and | |
| 49 | + * com.sun.net.ssl.HttpURLConnection objects. <p> | |
| 50 | + * | |
| 51 | + * javax.net.ssl.HttpURLConnection is used in the new sun.net version | |
| 52 | + * of protocol implementation (this one) | |
| 53 | + * com.sun.net.ssl.HttpURLConnection is used in the com.sun version. | |
| 54 | + * | |
| 55 | + */ | |
| 56 | +public class DelegateHttpsURLConnection extends AbstractDelegateHttpsURLConnection { | |
| 57 | + | |
| 58 | + // we need a reference to the HttpsURLConnection to get | |
| 59 | + // the properties set there | |
| 60 | + // we also need it to be public so that it can be referenced | |
| 61 | + // from sun.net.www.protocol.http.HttpURLConnection | |
| 62 | + // this is for ResponseCache.put(URI, URLConnection) | |
| 63 | + // second parameter needs to be cast to javax.net.ssl.HttpsURLConnection | |
| 64 | + // instead of AbstractDelegateHttpsURLConnection | |
| 65 | + public com.sun.net.ssl.HttpsURLConnection httpsURLConnection; | |
| 66 | + | |
| 67 | + DelegateHttpsURLConnection(URL url, | |
| 68 | + sun.net.www.protocol.http.Handler handler, | |
| 69 | + com.sun.net.ssl.HttpsURLConnection httpsURLConnection) | |
| 70 | + throws IOException { | |
| 71 | + this(url, null, handler, httpsURLConnection); | |
| 72 | + } | |
| 73 | + | |
| 74 | + DelegateHttpsURLConnection(URL url, Proxy p, | |
| 75 | + sun.net.www.protocol.http.Handler handler, | |
| 76 | + com.sun.net.ssl.HttpsURLConnection httpsURLConnection) | |
| 77 | + throws IOException { | |
| 78 | + super(url, p, handler); | |
| 79 | + this.httpsURLConnection = httpsURLConnection; | |
| 80 | + } | |
| 81 | + | |
| 82 | + protected javax.net.ssl.SSLSocketFactory getSSLSocketFactory() { | |
| 83 | + return httpsURLConnection.getSSLSocketFactory(); | |
| 84 | + } | |
| 85 | + | |
| 86 | + protected javax.net.ssl.HostnameVerifier getHostnameVerifier() { | |
| 87 | + // note: getHostnameVerifier() never returns null | |
| 88 | + return new VerifierWrapper(httpsURLConnection.getHostnameVerifier()); | |
| 89 | + } | |
| 90 | + | |
| 91 | + /* | |
| 92 | + * Called by layered delegator's finalize() method to handle closing | |
| 93 | + * the underlying object. | |
| 94 | + */ | |
| 95 | + protected void dispose() throws Throwable { | |
| 96 | + super.finalize(); | |
| 97 | + } | |
| 98 | +} | |
| 99 | + | |
| 100 | +class VerifierWrapper implements javax.net.ssl.HostnameVerifier { | |
| 101 | + | |
| 102 | + private com.sun.net.ssl.HostnameVerifier verifier; | |
| 103 | + | |
| 104 | + VerifierWrapper(com.sun.net.ssl.HostnameVerifier verifier) { | |
| 105 | + this.verifier = verifier; | |
| 106 | + } | |
| 107 | + | |
| 108 | + /* | |
| 109 | + * In com.sun.net.ssl.HostnameVerifier the method is defined | |
| 110 | + * as verify(String urlHostname, String certHostname). | |
| 111 | + * This means we need to extract the hostname from the X.509 certificate | |
| 112 | + * or from the Kerberos principal name, in this wrapper. | |
| 113 | + */ | |
| 114 | + public boolean verify(String hostname, javax.net.ssl.SSLSession session) { | |
| 115 | + try { | |
| 116 | + String serverName; | |
| 117 | + // Use ciphersuite to determine whether Kerberos is active. | |
| 118 | + if (session.getCipherSuite().startsWith("TLS_KRB5")) { | |
| 119 | + serverName = | |
| 120 | + HostnameChecker.getServerName(getPeerPrincipal(session)); | |
| 121 | + | |
| 122 | + } else { // X.509 | |
| 123 | + Certificate[] serverChain = session.getPeerCertificates(); | |
| 124 | + if ((serverChain == null) || (serverChain.length == 0)) { | |
| 125 | + return false; | |
| 126 | + } | |
| 127 | + if (serverChain[0] instanceof X509Certificate == false) { | |
| 128 | + return false; | |
| 129 | + } | |
| 130 | + X509Certificate serverCert = (X509Certificate)serverChain[0]; | |
| 131 | + serverName = getServername(serverCert); | |
| 132 | + } | |
| 133 | + if (serverName == null) { | |
| 134 | + return false; | |
| 135 | + } | |
| 136 | + return verifier.verify(hostname, serverName); | |
| 137 | + } catch (javax.net.ssl.SSLPeerUnverifiedException e) { | |
| 138 | + return false; | |
| 139 | + } | |
| 140 | + } | |
| 141 | + | |
| 142 | + /* | |
| 143 | + * Get the peer principal from the session | |
| 144 | + */ | |
| 145 | + private Principal getPeerPrincipal(javax.net.ssl.SSLSession session) | |
| 146 | + throws javax.net.ssl.SSLPeerUnverifiedException | |
| 147 | + { | |
| 148 | + Principal principal; | |
| 149 | + try { | |
| 150 | + principal = session.getPeerPrincipal(); | |
| 151 | + } catch (AbstractMethodError e) { | |
| 152 | + // if the provider does not support it, return null, since | |
| 153 | + // we need it only for Kerberos. | |
| 154 | + principal = null; | |
| 155 | + } | |
| 156 | + return principal; | |
| 157 | + } | |
| 158 | + | |
| 159 | + /* | |
| 160 | + * Extract the name of the SSL server from the certificate. | |
| 161 | + * | |
| 162 | + * Note this code is essentially a subset of the hostname extraction | |
| 163 | + * code in HostnameChecker. | |
| 164 | + */ | |
| 165 | + private static String getServername(X509Certificate peerCert) { | |
| 166 | + try { | |
| 167 | + // compare to subjectAltNames if dnsName is present | |
| 168 | + Collection subjAltNames = peerCert.getSubjectAlternativeNames(); | |
| 169 | + if (subjAltNames != null) { | |
| 170 | + for (Iterator itr = subjAltNames.iterator(); itr.hasNext(); ) { | |
| 171 | + List next = (List)itr.next(); | |
| 172 | + if (((Integer)next.get(0)).intValue() == 2) { | |
| 173 | + // compare dNSName with host in url | |
| 174 | + String dnsName = ((String)next.get(1)); | |
| 175 | + return dnsName; | |
| 176 | + } | |
| 177 | + } | |
| 178 | + } | |
| 179 | + | |
| 180 | + // else check against common name in the subject field | |
| 181 | + X500Name subject = HostnameChecker.getSubjectX500Name(peerCert); | |
| 182 | + | |
| 183 | + DerValue derValue = subject.findMostSpecificAttribute | |
| 184 | + (X500Name.commonName_oid); | |
| 185 | + if (derValue != null) { | |
| 186 | + try { | |
| 187 | + String name = derValue.getAsString(); | |
| 188 | + return name; | |
| 189 | + } catch (IOException e) { | |
| 190 | + // ignore | |
| 191 | + } | |
| 192 | + } | |
| 193 | + } catch (java.security.cert.CertificateException e) { | |
| 194 | + // ignore | |
| 195 | + } | |
| 196 | + return null; | |
| 197 | + } | |
| 198 | + | |
| 199 | +} | |