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| 1 | /* | ||
| 2 | * Copyright (c) 1997, 2010, 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 | |||
| 27 | package sun.security.ssl; | ||
| 28 | |||
| 29 | import java.net.Socket; | ||
| 30 | import javax.net.ssl.SSLSession; | ||
| 31 | |||
| 32 | import java.util.*; | ||
| 33 | import java.security.*; | ||
| 34 | import java.security.cert.*; | ||
| 35 | |||
| 36 | import javax.net.ssl.*; | ||
| 37 | |||
| 38 | import sun.security.validator.*; | ||
| 39 | |||
| 40 | import sun.security.util.HostnameChecker; | ||
| 41 | |||
| 42 | /** | ||
| 43 | * This class implements the SunJSSE X.509 trust manager using the internal | ||
| 44 | * validator API in J2SE core. The logic in this class is minimal.<p> | ||
| 45 | * <p> | ||
| 46 | * This class supports both the Simple validation algorithm from previous | ||
| 47 | * JSSE versions and PKIX validation. Currently, it is not possible for the | ||
| 48 | * application to specify PKIX parameters other than trust anchors. This will | ||
| 49 | * be fixed in a future release using new APIs. When that happens, it may also | ||
| 50 | * make sense to separate the Simple and PKIX trust managers into separate | ||
| 51 | * classes. | ||
| 52 | * | ||
| 53 | * @author Andreas Sterbenz | ||
| 54 | */ | ||
| 55 | final class X509TrustManagerImpl extends X509ExtendedTrustManager | ||
| 56 | implements X509TrustManager { | ||
| 57 | |||
| 58 | private final String validatorType; | ||
| 59 | |||
| 60 | /** | ||
| 61 | * The Set of trusted X509Certificates. | ||
| 62 | */ | ||
| 63 | private final Collection<X509Certificate> trustedCerts; | ||
| 64 | |||
| 65 | private final PKIXBuilderParameters pkixParams; | ||
| 66 | |||
| 67 | // note that we need separate validator for client and server due to | ||
| 68 | // the different extension checks. They are initialized lazily on demand. | ||
| 69 | private volatile Validator clientValidator, serverValidator; | ||
| 70 | |||
| 71 | private static final Debug debug = Debug.getInstance("ssl"); | ||
| 72 | |||
| 73 | X509TrustManagerImpl(String validatorType, KeyStore ks) | ||
| 74 | throws KeyStoreException { | ||
| 75 | this.validatorType = validatorType; | ||
| 76 | this.pkixParams = null; | ||
| 77 | if (ks == null) { | ||
| 78 | trustedCerts = Collections.<X509Certificate>emptySet(); | ||
| 79 | } else { | ||
| 80 | trustedCerts = KeyStores.getTrustedCerts(ks); | ||
| 81 | } | ||
| 82 | showTrustedCerts(); | ||
| 83 | } | ||
| 84 | |||
| 85 | X509TrustManagerImpl(String validatorType, PKIXBuilderParameters params) { | ||
| 86 | this.validatorType = validatorType; | ||
| 87 | this.pkixParams = params; | ||
| 88 | // create server validator eagerly so that we can conveniently | ||
| 89 | // get the trusted certificates | ||
| 90 | // clients need it anyway eventually, and servers will not mind | ||
| 91 | // the little extra footprint | ||
| 92 | Validator v = getValidator(Validator.VAR_TLS_SERVER); | ||
| 93 | trustedCerts = v.getTrustedCertificates(); | ||
| 94 | serverValidator = v; | ||
| 95 | showTrustedCerts(); | ||
| 96 | } | ||
| 97 | |||
| 98 | @Override | ||
| 99 | public void checkClientTrusted(X509Certificate chain[], String authType) | ||
| 100 | throws CertificateException { | ||
| 101 | checkTrusted(chain, authType, (Socket)null, true); | ||
| 102 | } | ||
| 103 | |||
| 104 | @Override | ||
| 105 | public void checkServerTrusted(X509Certificate chain[], String authType) | ||
| 106 | throws CertificateException { | ||
| 107 | checkTrusted(chain, authType, (Socket)null, false); | ||
| 108 | } | ||
| 109 | |||
| 110 | @Override | ||
| 111 | public X509Certificate[] getAcceptedIssuers() { | ||
| 112 | X509Certificate[] certsArray = new X509Certificate[trustedCerts.size()]; | ||
| 113 | trustedCerts.toArray(certsArray); | ||
| 114 | return certsArray; | ||
| 115 | } | ||
| 116 | |||
| 117 | @Override | ||
| 118 | public void checkClientTrusted(X509Certificate[] chain, String authType, | ||
| 119 | Socket socket) throws CertificateException { | ||
| 120 | checkTrusted(chain, authType, socket, true); | ||
| 121 | } | ||
| 122 | |||
| 123 | @Override | ||
| 124 | public void checkServerTrusted(X509Certificate[] chain, String authType, | ||
| 125 | Socket socket) throws CertificateException { | ||
| 126 | checkTrusted(chain, authType, socket, false); | ||
| 127 | } | ||
| 128 | |||
| 129 | @Override | ||
| 130 | public void checkClientTrusted(X509Certificate[] chain, String authType, | ||
| 131 | SSLEngine engine) throws CertificateException { | ||
| 132 | checkTrusted(chain, authType, engine, true); | ||
| 133 | } | ||
| 134 | |||
| 135 | @Override | ||
| 136 | public void checkServerTrusted(X509Certificate[] chain, String authType, | ||
| 137 | SSLEngine engine) throws CertificateException { | ||
| 138 | checkTrusted(chain, authType, engine, false); | ||
| 139 | } | ||
| 140 | |||
| 141 | private Validator checkTrustedInit(X509Certificate[] chain, | ||
| 142 | String authType, boolean isClient) { | ||
| 143 | if (chain == null || chain.length == 0) { | ||
| 144 | throw new IllegalArgumentException( | ||
| 145 | "null or zero-length certificate chain"); | ||
| 146 | } | ||
| 147 | |||
| 148 | if (authType == null || authType.length() == 0) { | ||
| 149 | throw new IllegalArgumentException( | ||
| 150 | "null or zero-length authentication type"); | ||
| 151 | } | ||
| 152 | |||
| 153 | Validator v = null; | ||
| 154 | if (isClient) { | ||
| 155 | v = clientValidator; | ||
| 156 | if (v == null) { | ||
| 157 | synchronized (this) { | ||
| 158 | v = clientValidator; | ||
| 159 | if (v == null) { | ||
| 160 | v = getValidator(Validator.VAR_TLS_CLIENT); | ||
| 161 | clientValidator = v; | ||
| 162 | } | ||
| 163 | } | ||
| 164 | } | ||
| 165 | } else { | ||
| 166 | // assume double checked locking with a volatile flag works | ||
| 167 | // (guaranteed under the new Tiger memory model) | ||
| 168 | v = serverValidator; | ||
| 169 | if (v == null) { | ||
| 170 | synchronized (this) { | ||
| 171 | v = serverValidator; | ||
| 172 | if (v == null) { | ||
| 173 | v = getValidator(Validator.VAR_TLS_SERVER); | ||
| 174 | serverValidator = v; | ||
| 175 | } | ||
| 176 | } | ||
| 177 | } | ||
| 178 | } | ||
| 179 | |||
| 180 | return v; | ||
| 181 | } | ||
| 182 | |||
| 183 | |||
| 184 | private void checkTrusted(X509Certificate[] chain, String authType, | ||
| 185 | Socket socket, boolean isClient) throws CertificateException { | ||
| 186 | Validator v = checkTrustedInit(chain, authType, isClient); | ||
| 187 | |||
| 188 | AlgorithmConstraints constraints = null; | ||
| 189 | if ((socket != null) && socket.isConnected() && | ||
| 190 | (socket instanceof SSLSocket)) { | ||
| 191 | |||
| 192 | SSLSocket sslSocket = (SSLSocket)socket; | ||
| 193 | SSLSession session = sslSocket.getHandshakeSession(); | ||
| 194 | if (session == null) { | ||
| 195 | throw new CertificateException("No handshake session"); | ||
| 196 | } | ||
| 197 | |||
| 198 | // check endpoint identity | ||
| 199 | String identityAlg = sslSocket.getSSLParameters(). | ||
| 200 | getEndpointIdentificationAlgorithm(); | ||
| 201 | if (identityAlg != null && identityAlg.length() != 0) { | ||
| 202 | String hostname = session.getPeerHost(); | ||
| 203 | checkIdentity(hostname, chain[0], identityAlg); | ||
| 204 | } | ||
| 205 | |||
| 206 | // create the algorithm constraints | ||
| 207 | ProtocolVersion protocolVersion = | ||
| 208 | ProtocolVersion.valueOf(session.getProtocol()); | ||
| 209 | if (protocolVersion.v >= ProtocolVersion.TLS12.v) { | ||
| 210 | if (session instanceof ExtendedSSLSession) { | ||
| 211 | ExtendedSSLSession extSession = | ||
| 212 | (ExtendedSSLSession)session; | ||
| 213 | String[] localSupportedSignAlgs = | ||
| 214 | extSession.getLocalSupportedSignatureAlgorithms(); | ||
| 215 | |||
| 216 | constraints = new SSLAlgorithmConstraints( | ||
| 217 | sslSocket, localSupportedSignAlgs, false); | ||
| 218 | } else { | ||
| 219 | constraints = | ||
| 220 | new SSLAlgorithmConstraints(sslSocket, false); | ||
| 221 | } | ||
| 222 | } else { | ||
| 223 | constraints = new SSLAlgorithmConstraints(sslSocket, false); | ||
| 224 | } | ||
| 225 | } | ||
| 226 | |||
| 227 | X509Certificate[] trustedChain = null; | ||
| 228 | if (isClient) { | ||
| 229 | trustedChain = validate(v, chain, constraints, null); | ||
| 230 | } else { | ||
| 231 | trustedChain = validate(v, chain, constraints, authType); | ||
| 232 | } | ||
| 233 | if (debug != null && Debug.isOn("trustmanager")) { | ||
| 234 | System.out.println("Found trusted certificate:"); | ||
| 235 | System.out.println(trustedChain[trustedChain.length - 1]); | ||
| 236 | } | ||
| 237 | } | ||
| 238 | |||
| 239 | private void checkTrusted(X509Certificate[] chain, String authType, | ||
| 240 | SSLEngine engine, boolean isClient) throws CertificateException { | ||
| 241 | Validator v = checkTrustedInit(chain, authType, isClient); | ||
| 242 | |||
| 243 | AlgorithmConstraints constraints = null; | ||
| 244 | if (engine != null) { | ||
| 245 | SSLSession session = engine.getHandshakeSession(); | ||
| 246 | if (session == null) { | ||
| 247 | throw new CertificateException("No handshake session"); | ||
| 248 | } | ||
| 249 | |||
| 250 | // check endpoint identity | ||
| 251 | String identityAlg = engine.getSSLParameters(). | ||
| 252 | getEndpointIdentificationAlgorithm(); | ||
| 253 | if (identityAlg != null && identityAlg.length() != 0) { | ||
| 254 | String hostname = session.getPeerHost(); | ||
| 255 | checkIdentity(hostname, chain[0], identityAlg); | ||
| 256 | } | ||
| 257 | |||
| 258 | // create the algorithm constraints | ||
| 259 | ProtocolVersion protocolVersion = | ||
| 260 | ProtocolVersion.valueOf(session.getProtocol()); | ||
| 261 | if (protocolVersion.v >= ProtocolVersion.TLS12.v) { | ||
| 262 | if (session instanceof ExtendedSSLSession) { | ||
| 263 | ExtendedSSLSession extSession = | ||
| 264 | (ExtendedSSLSession)session; | ||
| 265 | String[] localSupportedSignAlgs = | ||
| 266 | extSession.getLocalSupportedSignatureAlgorithms(); | ||
| 267 | |||
| 268 | constraints = new SSLAlgorithmConstraints( | ||
| 269 | engine, localSupportedSignAlgs, false); | ||
| 270 | } else { | ||
| 271 | constraints = | ||
| 272 | new SSLAlgorithmConstraints(engine, false); | ||
| 273 | } | ||
| 274 | } else { | ||
| 275 | constraints = new SSLAlgorithmConstraints(engine, false); | ||
| 276 | } | ||
| 277 | } | ||
| 278 | |||
| 279 | X509Certificate[] trustedChain = null; | ||
| 280 | if (isClient) { | ||
| 281 | trustedChain = validate(v, chain, constraints, null); | ||
| 282 | } else { | ||
| 283 | trustedChain = validate(v, chain, constraints, authType); | ||
| 284 | } | ||
| 285 | if (debug != null && Debug.isOn("trustmanager")) { | ||
| 286 | System.out.println("Found trusted certificate:"); | ||
| 287 | System.out.println(trustedChain[trustedChain.length - 1]); | ||
| 288 | } | ||
| 289 | } | ||
| 290 | |||
| 291 | private void showTrustedCerts() { | ||
| 292 | if (debug != null && Debug.isOn("trustmanager")) { | ||
| 293 | for (X509Certificate cert : trustedCerts) { | ||
| 294 | System.out.println("adding as trusted cert:"); | ||
| 295 | System.out.println(" Subject: " | ||
| 296 | + cert.getSubjectX500Principal()); | ||
| 297 | System.out.println(" Issuer: " | ||
| 298 | + cert.getIssuerX500Principal()); | ||
| 299 | System.out.println(" Algorithm: " | ||
| 300 | + cert.getPublicKey().getAlgorithm() | ||
| 301 | + "; Serial number: 0x" | ||
| 302 | + cert.getSerialNumber().toString(16)); | ||
| 303 | System.out.println(" Valid from " | ||
| 304 | + cert.getNotBefore() + " until " | ||
| 305 | + cert.getNotAfter()); | ||
| 306 | System.out.println(); | ||
| 307 | } | ||
| 308 | } | ||
| 309 | } | ||
| 310 | |||
| 311 | private Validator getValidator(String variant) { | ||
| 312 | Validator v; | ||
| 313 | if (pkixParams == null) { | ||
| 314 | v = Validator.getInstance(validatorType, variant, trustedCerts); | ||
| 315 | } else { | ||
| 316 | v = Validator.getInstance(validatorType, variant, pkixParams); | ||
| 317 | } | ||
| 318 | return v; | ||
| 319 | } | ||
| 320 | |||
| 321 | private static X509Certificate[] validate(Validator v, | ||
| 322 | X509Certificate[] chain, AlgorithmConstraints constraints, | ||
| 323 | String authType) throws CertificateException { | ||
| 324 | Object o = JsseJce.beginFipsProvider(); | ||
| 325 | try { | ||
| 326 | return v.validate(chain, null, constraints, authType); | ||
| 327 | } finally { | ||
| 328 | JsseJce.endFipsProvider(o); | ||
| 329 | } | ||
| 330 | } | ||
| 331 | |||
| 332 | /* | ||
| 333 | * Identify the peer by its certificate and hostname. | ||
| 334 | * | ||
| 335 | * Lifted from sun.net.www.protocol.https.HttpsClient. | ||
| 336 | */ | ||
| 337 | static void checkIdentity(String hostname, X509Certificate cert, | ||
| 338 | String algorithm) throws CertificateException { | ||
| 339 | if (algorithm != null && algorithm.length() != 0) { | ||
| 340 | // if IPv6 strip off the "[]" | ||
| 341 | if ((hostname != null) && hostname.startsWith("[") && | ||
| 342 | hostname.endsWith("]")) { | ||
| 343 | hostname = hostname.substring(1, hostname.length() - 1); | ||
| 344 | } | ||
| 345 | |||
| 346 | if (algorithm.equalsIgnoreCase("HTTPS")) { | ||
| 347 | HostnameChecker.getInstance(HostnameChecker.TYPE_TLS).match( | ||
| 348 | hostname, cert); | ||
| 349 | } else if (algorithm.equalsIgnoreCase("LDAP") || | ||
| 350 | algorithm.equalsIgnoreCase("LDAPS")) { | ||
| 351 | HostnameChecker.getInstance(HostnameChecker.TYPE_LDAP).match( | ||
| 352 | hostname, cert); | ||
| 353 | } else { | ||
| 354 | throw new CertificateException( | ||
| 355 | "Unknown identification algorithm: " + algorithm); | ||
| 356 | } | ||
| 357 | } | ||
| 358 | } | ||
| 359 | } | ||