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| 1 | +/* | |
| 2 | + * Copyright (c) 2001, 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.net.www.protocol.https; | |
| 28 | + | |
| 29 | +import java.io.IOException; | |
| 30 | +import java.io.UnsupportedEncodingException; | |
| 31 | +import java.io.PrintStream; | |
| 32 | +import java.io.BufferedOutputStream; | |
| 33 | +import java.net.Socket; | |
| 34 | +import java.net.SocketException; | |
| 35 | +import java.net.URL; | |
| 36 | +import java.net.UnknownHostException; | |
| 37 | +import java.net.InetSocketAddress; | |
| 38 | +import java.net.Proxy; | |
| 39 | +import java.net.CookieHandler; | |
| 40 | +import java.security.Principal; | |
| 41 | +import java.security.cert.*; | |
| 42 | +import java.util.StringTokenizer; | |
| 43 | +import java.util.Vector; | |
| 44 | +import java.security.AccessController; | |
| 45 | + | |
| 46 | +import javax.security.auth.x500.X500Principal; | |
| 47 | + | |
| 48 | +import javax.net.ssl.*; | |
| 49 | +import sun.net.www.http.HttpClient; | |
| 50 | +import sun.security.action.*; | |
| 51 | + | |
| 52 | +import sun.security.util.HostnameChecker; | |
| 53 | +import sun.security.ssl.SSLSocketImpl; | |
| 54 | + | |
| 55 | + | |
| 56 | +/** | |
| 57 | + * This class provides HTTPS client URL support, building on the standard | |
| 58 | + * "sun.net.www" HTTP protocol handler. HTTPS is the same protocol as HTTP, | |
| 59 | + * but differs in the transport layer which it uses: <UL> | |
| 60 | + * | |
| 61 | + * <LI>There's a <em>Secure Sockets Layer</em> between TCP | |
| 62 | + * and the HTTP protocol code. | |
| 63 | + * | |
| 64 | + * <LI>It uses a different default TCP port. | |
| 65 | + * | |
| 66 | + * <LI>It doesn't use application level proxies, which can see and | |
| 67 | + * manipulate HTTP user level data, compromising privacy. It uses | |
| 68 | + * low level tunneling instead, which hides HTTP protocol and data | |
| 69 | + * from all third parties. (Traffic analysis is still possible). | |
| 70 | + * | |
| 71 | + * <LI>It does basic server authentication, to protect | |
| 72 | + * against "URL spoofing" attacks. This involves deciding | |
| 73 | + * whether the X.509 certificate chain identifying the server | |
| 74 | + * is trusted, and verifying that the name of the server is | |
| 75 | + * found in the certificate. (The application may enable an | |
| 76 | + * anonymous SSL cipher suite, and such checks are not done | |
| 77 | + * for anonymous ciphers.) | |
| 78 | + * | |
| 79 | + * <LI>It exposes key SSL session attributes, specifically the | |
| 80 | + * cipher suite in use and the server's X509 certificates, to | |
| 81 | + * application software which knows about this protocol handler. | |
| 82 | + * | |
| 83 | + * </UL> | |
| 84 | + * | |
| 85 | + * <P> System properties used include: <UL> | |
| 86 | + * | |
| 87 | + * <LI><em>https.proxyHost</em> ... the host supporting SSL | |
| 88 | + * tunneling using the conventional CONNECT syntax | |
| 89 | + * | |
| 90 | + * <LI><em>https.proxyPort</em> ... port to use on proxyHost | |
| 91 | + * | |
| 92 | + * <LI><em>https.cipherSuites</em> ... comma separated list of | |
| 93 | + * SSL cipher suite names to enable. | |
| 94 | + * | |
| 95 | + * <LI><em>http.nonProxyHosts</em> ... | |
| 96 | + * | |
| 97 | + * </UL> | |
| 98 | + * | |
| 99 | + * @author David Brownell | |
| 100 | + * @author Bill Foote | |
| 101 | + */ | |
| 102 | + | |
| 103 | +// final for export control reasons (access to APIs); remove with care | |
| 104 | +final class HttpsClient extends HttpClient | |
| 105 | + implements HandshakeCompletedListener | |
| 106 | +{ | |
| 107 | + // STATIC STATE and ACCESSORS THERETO | |
| 108 | + | |
| 109 | + // HTTPS uses a different default port number than HTTP. | |
| 110 | + private static final int httpsPortNumber = 443; | |
| 111 | + | |
| 112 | + // default HostnameVerifier class canonical name | |
| 113 | + private static final String defaultHVCanonicalName = | |
| 114 | + "javax.net.ssl.HttpsURLConnection.DefaultHostnameVerifier"; | |
| 115 | + | |
| 116 | + /** Returns the default HTTPS port (443) */ | |
| 117 | + @Override | |
| 118 | + protected int getDefaultPort() { return httpsPortNumber; } | |
| 119 | + | |
| 120 | + private HostnameVerifier hv; | |
| 121 | + private SSLSocketFactory sslSocketFactory; | |
| 122 | + | |
| 123 | + // HttpClient.proxyDisabled will always be false, because we don't | |
| 124 | + // use an application-level HTTP proxy. We might tunnel through | |
| 125 | + // our http proxy, though. | |
| 126 | + | |
| 127 | + | |
| 128 | + // INSTANCE DATA | |
| 129 | + | |
| 130 | + // last negotiated SSL session | |
| 131 | + private SSLSession session; | |
| 132 | + | |
| 133 | + private String [] getCipherSuites() { | |
| 134 | + // | |
| 135 | + // If ciphers are assigned, sort them into an array. | |
| 136 | + // | |
| 137 | + String ciphers []; | |
| 138 | + String cipherString = AccessController.doPrivileged( | |
| 139 | + new GetPropertyAction("https.cipherSuites")); | |
| 140 | + | |
| 141 | + if (cipherString == null || "".equals(cipherString)) { | |
| 142 | + ciphers = null; | |
| 143 | + } else { | |
| 144 | + StringTokenizer tokenizer; | |
| 145 | + Vector<String> v = new Vector<String>(); | |
| 146 | + | |
| 147 | + tokenizer = new StringTokenizer(cipherString, ","); | |
| 148 | + while (tokenizer.hasMoreTokens()) | |
| 149 | + v.addElement(tokenizer.nextToken()); | |
| 150 | + ciphers = new String [v.size()]; | |
| 151 | + for (int i = 0; i < ciphers.length; i++) | |
| 152 | + ciphers [i] = v.elementAt(i); | |
| 153 | + } | |
| 154 | + return ciphers; | |
| 155 | + } | |
| 156 | + | |
| 157 | + private String [] getProtocols() { | |
| 158 | + // | |
| 159 | + // If protocols are assigned, sort them into an array. | |
| 160 | + // | |
| 161 | + String protocols []; | |
| 162 | + String protocolString = AccessController.doPrivileged( | |
| 163 | + new GetPropertyAction("https.protocols")); | |
| 164 | + | |
| 165 | + if (protocolString == null || "".equals(protocolString)) { | |
| 166 | + protocols = null; | |
| 167 | + } else { | |
| 168 | + StringTokenizer tokenizer; | |
| 169 | + Vector<String> v = new Vector<String>(); | |
| 170 | + | |
| 171 | + tokenizer = new StringTokenizer(protocolString, ","); | |
| 172 | + while (tokenizer.hasMoreTokens()) | |
| 173 | + v.addElement(tokenizer.nextToken()); | |
| 174 | + protocols = new String [v.size()]; | |
| 175 | + for (int i = 0; i < protocols.length; i++) { | |
| 176 | + protocols [i] = v.elementAt(i); | |
| 177 | + } | |
| 178 | + } | |
| 179 | + return protocols; | |
| 180 | + } | |
| 181 | + | |
| 182 | + private String getUserAgent() { | |
| 183 | + String userAgent = java.security.AccessController.doPrivileged( | |
| 184 | + new sun.security.action.GetPropertyAction("https.agent")); | |
| 185 | + if (userAgent == null || userAgent.length() == 0) { | |
| 186 | + userAgent = "JSSE"; | |
| 187 | + } | |
| 188 | + return userAgent; | |
| 189 | + } | |
| 190 | + | |
| 191 | + // should remove once HttpClient.newHttpProxy is putback | |
| 192 | + private static Proxy newHttpProxy(String proxyHost, int proxyPort) { | |
| 193 | + InetSocketAddress saddr = null; | |
| 194 | + final String phost = proxyHost; | |
| 195 | + final int pport = proxyPort < 0 ? httpsPortNumber : proxyPort; | |
| 196 | + try { | |
| 197 | + saddr = java.security.AccessController.doPrivileged(new | |
| 198 | + java.security.PrivilegedExceptionAction<InetSocketAddress>() { | |
| 199 | + public InetSocketAddress run() { | |
| 200 | + return new InetSocketAddress(phost, pport); | |
| 201 | + }}); | |
| 202 | + } catch (java.security.PrivilegedActionException pae) { | |
| 203 | + } | |
| 204 | + return new Proxy(Proxy.Type.HTTP, saddr); | |
| 205 | + } | |
| 206 | + | |
| 207 | + // CONSTRUCTOR, FACTORY | |
| 208 | + | |
| 209 | + | |
| 210 | + /** | |
| 211 | + * Create an HTTPS client URL. Traffic will be tunneled through any | |
| 212 | + * intermediate nodes rather than proxied, so that confidentiality | |
| 213 | + * of data exchanged can be preserved. However, note that all the | |
| 214 | + * anonymous SSL flavors are subject to "person-in-the-middle" | |
| 215 | + * attacks against confidentiality. If you enable use of those | |
| 216 | + * flavors, you may be giving up the protection you get through | |
| 217 | + * SSL tunneling. | |
| 218 | + * | |
| 219 | + * Use New to get new HttpsClient. This constructor is meant to be | |
| 220 | + * used only by New method. New properly checks for URL spoofing. | |
| 221 | + * | |
| 222 | + * @param URL https URL with which a connection must be established | |
| 223 | + */ | |
| 224 | + private HttpsClient(SSLSocketFactory sf, URL url) | |
| 225 | + throws IOException | |
| 226 | + { | |
| 227 | + // HttpClient-level proxying is always disabled, | |
| 228 | + // because we override doConnect to do tunneling instead. | |
| 229 | + this(sf, url, (String)null, -1); | |
| 230 | + } | |
| 231 | + | |
| 232 | + /** | |
| 233 | + * Create an HTTPS client URL. Traffic will be tunneled through | |
| 234 | + * the specified proxy server. | |
| 235 | + */ | |
| 236 | + HttpsClient(SSLSocketFactory sf, URL url, String proxyHost, int proxyPort) | |
| 237 | + throws IOException { | |
| 238 | + this(sf, url, proxyHost, proxyPort, -1); | |
| 239 | + } | |
| 240 | + | |
| 241 | + /** | |
| 242 | + * Create an HTTPS client URL. Traffic will be tunneled through | |
| 243 | + * the specified proxy server, with a connect timeout | |
| 244 | + */ | |
| 245 | + HttpsClient(SSLSocketFactory sf, URL url, String proxyHost, int proxyPort, | |
| 246 | + int connectTimeout) | |
| 247 | + throws IOException { | |
| 248 | + this(sf, url, | |
| 249 | + (proxyHost == null? null: | |
| 250 | + HttpsClient.newHttpProxy(proxyHost, proxyPort)), | |
| 251 | + connectTimeout); | |
| 252 | + } | |
| 253 | + | |
| 254 | + /** | |
| 255 | + * Same as previous constructor except using a Proxy | |
| 256 | + */ | |
| 257 | + HttpsClient(SSLSocketFactory sf, URL url, Proxy proxy, | |
| 258 | + int connectTimeout) | |
| 259 | + throws IOException { | |
| 260 | + this.proxy = proxy; | |
| 261 | + setSSLSocketFactory(sf); | |
| 262 | + this.proxyDisabled = true; | |
| 263 | + | |
| 264 | + this.host = url.getHost(); | |
| 265 | + this.url = url; | |
| 266 | + port = url.getPort(); | |
| 267 | + if (port == -1) { | |
| 268 | + port = getDefaultPort(); | |
| 269 | + } | |
| 270 | + setConnectTimeout(connectTimeout); | |
| 271 | + // get the cookieHandler if there is any | |
| 272 | + cookieHandler = java.security.AccessController.doPrivileged( | |
| 273 | + new java.security.PrivilegedAction<CookieHandler>() { | |
| 274 | + public CookieHandler run() { | |
| 275 | + return CookieHandler.getDefault(); | |
| 276 | + } | |
| 277 | + }); | |
| 278 | + openServer(); | |
| 279 | + } | |
| 280 | + | |
| 281 | + | |
| 282 | + // This code largely ripped off from HttpClient.New, and | |
| 283 | + // it uses the same keepalive cache. | |
| 284 | + | |
| 285 | + static HttpClient New(SSLSocketFactory sf, URL url, HostnameVerifier hv) | |
| 286 | + throws IOException { | |
| 287 | + return HttpsClient.New(sf, url, hv, true); | |
| 288 | + } | |
| 289 | + | |
| 290 | + /** See HttpClient for the model for this method. */ | |
| 291 | + static HttpClient New(SSLSocketFactory sf, URL url, | |
| 292 | + HostnameVerifier hv, boolean useCache) throws IOException { | |
| 293 | + return HttpsClient.New(sf, url, hv, (String)null, -1, useCache); | |
| 294 | + } | |
| 295 | + | |
| 296 | + /** | |
| 297 | + * Get a HTTPS client to the URL. Traffic will be tunneled through | |
| 298 | + * the specified proxy server. | |
| 299 | + */ | |
| 300 | + static HttpClient New(SSLSocketFactory sf, URL url, HostnameVerifier hv, | |
| 301 | + String proxyHost, int proxyPort) throws IOException { | |
| 302 | + return HttpsClient.New(sf, url, hv, proxyHost, proxyPort, true); | |
| 303 | + } | |
| 304 | + | |
| 305 | + static HttpClient New(SSLSocketFactory sf, URL url, HostnameVerifier hv, | |
| 306 | + String proxyHost, int proxyPort, boolean useCache) | |
| 307 | + throws IOException { | |
| 308 | + return HttpsClient.New(sf, url, hv, proxyHost, proxyPort, useCache, -1); | |
| 309 | + } | |
| 310 | + | |
| 311 | + static HttpClient New(SSLSocketFactory sf, URL url, HostnameVerifier hv, | |
| 312 | + String proxyHost, int proxyPort, boolean useCache, | |
| 313 | + int connectTimeout) | |
| 314 | + throws IOException { | |
| 315 | + | |
| 316 | + return HttpsClient.New(sf, url, hv, | |
| 317 | + (proxyHost == null? null : | |
| 318 | + HttpsClient.newHttpProxy(proxyHost, proxyPort)), | |
| 319 | + useCache, connectTimeout); | |
| 320 | + } | |
| 321 | + | |
| 322 | + static HttpClient New(SSLSocketFactory sf, URL url, HostnameVerifier hv, | |
| 323 | + Proxy p, boolean useCache, | |
| 324 | + int connectTimeout) | |
| 325 | + throws IOException { | |
| 326 | + HttpsClient ret = null; | |
| 327 | + if (useCache) { | |
| 328 | + /* see if one's already around */ | |
| 329 | + ret = (HttpsClient) kac.get(url, sf); | |
| 330 | + if (ret != null) { | |
| 331 | + ret.cachedHttpClient = true; | |
| 332 | + } | |
| 333 | + } | |
| 334 | + if (ret == null) { | |
| 335 | + ret = new HttpsClient(sf, url, p, connectTimeout); | |
| 336 | + } else { | |
| 337 | + SecurityManager security = System.getSecurityManager(); | |
| 338 | + if (security != null) { | |
| 339 | + security.checkConnect(url.getHost(), url.getPort()); | |
| 340 | + } | |
| 341 | + ret.url = url; | |
| 342 | + } | |
| 343 | + ret.setHostnameVerifier(hv); | |
| 344 | + | |
| 345 | + return ret; | |
| 346 | + } | |
| 347 | + | |
| 348 | + // METHODS | |
| 349 | + void setHostnameVerifier(HostnameVerifier hv) { | |
| 350 | + this.hv = hv; | |
| 351 | + } | |
| 352 | + | |
| 353 | + void setSSLSocketFactory(SSLSocketFactory sf) { | |
| 354 | + sslSocketFactory = sf; | |
| 355 | + } | |
| 356 | + | |
| 357 | + SSLSocketFactory getSSLSocketFactory() { | |
| 358 | + return sslSocketFactory; | |
| 359 | + } | |
| 360 | + | |
| 361 | + /** | |
| 362 | + * The following method, createSocket, is defined in NetworkClient | |
| 363 | + * and overridden here so that the socket facroty is used to create | |
| 364 | + * new sockets. | |
| 365 | + */ | |
| 366 | + @Override | |
| 367 | + protected Socket createSocket() throws IOException { | |
| 368 | + try { | |
| 369 | + return sslSocketFactory.createSocket(); | |
| 370 | + } catch (SocketException se) { | |
| 371 | + // | |
| 372 | + // bug 6771432 | |
| 373 | + // javax.net.SocketFactory throws a SocketException with an | |
| 374 | + // UnsupportedOperationException as its cause to indicate that | |
| 375 | + // unconnected sockets have not been implemented. | |
| 376 | + // | |
| 377 | + Throwable t = se.getCause(); | |
| 378 | + if (t != null && t instanceof UnsupportedOperationException) { | |
| 379 | + return super.createSocket(); | |
| 380 | + } else { | |
| 381 | + throw se; | |
| 382 | + } | |
| 383 | + } | |
| 384 | + } | |
| 385 | + | |
| 386 | + | |
| 387 | + @Override | |
| 388 | + public boolean needsTunneling() { | |
| 389 | + return (proxy != null && proxy.type() != Proxy.Type.DIRECT | |
| 390 | + && proxy.type() != Proxy.Type.SOCKS); | |
| 391 | + } | |
| 392 | + | |
| 393 | + @Override | |
| 394 | + public void afterConnect() throws IOException, UnknownHostException { | |
| 395 | + if (!isCachedConnection()) { | |
| 396 | + SSLSocket s = null; | |
| 397 | + SSLSocketFactory factory = sslSocketFactory; | |
| 398 | + try { | |
| 399 | + if (!(serverSocket instanceof SSLSocket)) { | |
| 400 | + s = (SSLSocket)factory.createSocket(serverSocket, | |
| 401 | + host, port, true); | |
| 402 | + } else { | |
| 403 | + s = (SSLSocket)serverSocket; | |
| 404 | + if (s instanceof SSLSocketImpl) { | |
| 405 | + ((SSLSocketImpl)s).setHost(host); | |
| 406 | + } | |
| 407 | + } | |
| 408 | + } catch (IOException ex) { | |
| 409 | + // If we fail to connect through the tunnel, try it | |
| 410 | + // locally, as a last resort. If this doesn't work, | |
| 411 | + // throw the original exception. | |
| 412 | + try { | |
| 413 | + s = (SSLSocket)factory.createSocket(host, port); | |
| 414 | + } catch (IOException ignored) { | |
| 415 | + throw ex; | |
| 416 | + } | |
| 417 | + } | |
| 418 | + | |
| 419 | + // | |
| 420 | + // Force handshaking, so that we get any authentication. | |
| 421 | + // Register a handshake callback so our session state tracks any | |
| 422 | + // later session renegotiations. | |
| 423 | + // | |
| 424 | + String [] protocols = getProtocols(); | |
| 425 | + String [] ciphers = getCipherSuites(); | |
| 426 | + if (protocols != null) { | |
| 427 | + s.setEnabledProtocols(protocols); | |
| 428 | + } | |
| 429 | + if (ciphers != null) { | |
| 430 | + s.setEnabledCipherSuites(ciphers); | |
| 431 | + } | |
| 432 | + s.addHandshakeCompletedListener(this); | |
| 433 | + | |
| 434 | + // We have two hostname verification approaches. One is in | |
| 435 | + // SSL/TLS socket layer, where the algorithm is configured with | |
| 436 | + // SSLParameters.setEndpointIdentificationAlgorithm(), and the | |
| 437 | + // hostname verification is done by X509ExtendedTrustManager when | |
| 438 | + // the algorithm is "HTTPS". The other one is in HTTPS layer, | |
| 439 | + // where the algorithm is customized by | |
| 440 | + // HttpsURLConnection.setHostnameVerifier(), and the hostname | |
| 441 | + // verification is done by HostnameVerifier when the default | |
| 442 | + // rules for hostname verification fail. | |
| 443 | + // | |
| 444 | + // The relationship between two hostname verification approaches | |
| 445 | + // likes the following: | |
| 446 | + // | |
| 447 | + // | EIA algorithm | |
| 448 | + // +---------------------------------------------- | |
| 449 | + // | null | HTTPS | LDAP/other | | |
| 450 | + // ------------------------------------------------------------- | |
| 451 | + // | |1 |2 |3 | | |
| 452 | + // HNV | default | Set HTTPS EIA | use EIA | HTTPS | | |
| 453 | + // |-------------------------------------------------------- | |
| 454 | + // | non - |4 |5 |6 | | |
| 455 | + // | default | HTTPS/HNV | use EIA | HTTPS/HNV | | |
| 456 | + // ------------------------------------------------------------- | |
| 457 | + // | |
| 458 | + // Abbreviation: | |
| 459 | + // EIA: the endpoint identification algorithm in SSL/TLS | |
| 460 | + // socket layer | |
| 461 | + // HNV: the hostname verification object in HTTPS layer | |
| 462 | + // Notes: | |
| 463 | + // case 1. default HNV and EIA is null | |
| 464 | + // Set EIA as HTTPS, hostname check done in SSL/TLS | |
| 465 | + // layer. | |
| 466 | + // case 2. default HNV and EIA is HTTPS | |
| 467 | + // Use existing EIA, hostname check done in SSL/TLS | |
| 468 | + // layer. | |
| 469 | + // case 3. default HNV and EIA is other than HTTPS | |
| 470 | + // Use existing EIA, EIA check done in SSL/TLS | |
| 471 | + // layer, then do HTTPS check in HTTPS layer. | |
| 472 | + // case 4. non-default HNV and EIA is null | |
| 473 | + // No EIA, no EIA check done in SSL/TLS layer, then do | |
| 474 | + // HTTPS check in HTTPS layer using HNV as override. | |
| 475 | + // case 5. non-default HNV and EIA is HTTPS | |
| 476 | + // Use existing EIA, hostname check done in SSL/TLS | |
| 477 | + // layer. No HNV override possible. We will review this | |
| 478 | + // decision and may update the architecture for JDK 7. | |
| 479 | + // case 6. non-default HNV and EIA is other than HTTPS | |
| 480 | + // Use existing EIA, EIA check done in SSL/TLS layer, | |
| 481 | + // then do HTTPS check in HTTPS layer as override. | |
| 482 | + boolean needToCheckSpoofing = true; | |
| 483 | + String identification = | |
| 484 | + s.getSSLParameters().getEndpointIdentificationAlgorithm(); | |
| 485 | + if (identification != null && identification.length() != 0) { | |
| 486 | + if (identification.equalsIgnoreCase("HTTPS")) { | |
| 487 | + // Do not check server identity again out of SSLSocket, | |
| 488 | + // the endpoint will be identified during TLS handshaking | |
| 489 | + // in SSLSocket. | |
| 490 | + needToCheckSpoofing = false; | |
| 491 | + } // else, we don't understand the identification algorithm, | |
| 492 | + // need to check URL spoofing here. | |
| 493 | + } else { | |
| 494 | + boolean isDefaultHostnameVerifier = false; | |
| 495 | + | |
| 496 | + // We prefer to let the SSLSocket do the spoof checks, but if | |
| 497 | + // the application has specified a HostnameVerifier (HNV), | |
| 498 | + // we will always use that. | |
| 499 | + if (hv != null) { | |
| 500 | + String canonicalName = hv.getClass().getCanonicalName(); | |
| 501 | + if (canonicalName != null && | |
| 502 | + canonicalName.equalsIgnoreCase(defaultHVCanonicalName)) { | |
| 503 | + isDefaultHostnameVerifier = true; | |
| 504 | + } | |
| 505 | + } else { | |
| 506 | + // Unlikely to happen! As the behavior is the same as the | |
| 507 | + // default hostname verifier, so we prefer to let the | |
| 508 | + // SSLSocket do the spoof checks. | |
| 509 | + isDefaultHostnameVerifier = true; | |
| 510 | + } | |
| 511 | + | |
| 512 | + if (isDefaultHostnameVerifier) { | |
| 513 | + // If the HNV is the default from HttpsURLConnection, we | |
| 514 | + // will do the spoof checks in SSLSocket. | |
| 515 | + SSLParameters paramaters = s.getSSLParameters(); | |
| 516 | + paramaters.setEndpointIdentificationAlgorithm("HTTPS"); | |
| 517 | + s.setSSLParameters(paramaters); | |
| 518 | + | |
| 519 | + needToCheckSpoofing = false; | |
| 520 | + } | |
| 521 | + } | |
| 522 | + | |
| 523 | + s.startHandshake(); | |
| 524 | + session = s.getSession(); | |
| 525 | + // change the serverSocket and serverOutput | |
| 526 | + serverSocket = s; | |
| 527 | + try { | |
| 528 | + serverOutput = new PrintStream( | |
| 529 | + new BufferedOutputStream(serverSocket.getOutputStream()), | |
| 530 | + false, encoding); | |
| 531 | + } catch (UnsupportedEncodingException e) { | |
| 532 | + throw new InternalError(encoding+" encoding not found"); | |
| 533 | + } | |
| 534 | + | |
| 535 | + // check URL spoofing if it has not been checked under handshaking | |
| 536 | + if (needToCheckSpoofing) { | |
| 537 | + checkURLSpoofing(hv); | |
| 538 | + } | |
| 539 | + } else { | |
| 540 | + // if we are reusing a cached https session, | |
| 541 | + // we don't need to do handshaking etc. But we do need to | |
| 542 | + // set the ssl session | |
| 543 | + session = ((SSLSocket)serverSocket).getSession(); | |
| 544 | + } | |
| 545 | + } | |
| 546 | + | |
| 547 | + // Server identity checking is done according to RFC 2818: HTTP over TLS | |
| 548 | + // Section 3.1 Server Identity | |
| 549 | + private void checkURLSpoofing(HostnameVerifier hostnameVerifier) | |
| 550 | + throws IOException { | |
| 551 | + // | |
| 552 | + // Get authenticated server name, if any | |
| 553 | + // | |
| 554 | + String host = url.getHost(); | |
| 555 | + | |
| 556 | + // if IPv6 strip off the "[]" | |
| 557 | + if (host != null && host.startsWith("[") && host.endsWith("]")) { | |
| 558 | + host = host.substring(1, host.length()-1); | |
| 559 | + } | |
| 560 | + | |
| 561 | + Certificate[] peerCerts = null; | |
| 562 | + String cipher = session.getCipherSuite(); | |
| 563 | + try { | |
| 564 | + HostnameChecker checker = HostnameChecker.getInstance( | |
| 565 | + HostnameChecker.TYPE_TLS); | |
| 566 | + | |
| 567 | + // Use ciphersuite to determine whether Kerberos is present. | |
| 568 | + if (cipher.startsWith("TLS_KRB5")) { | |
| 569 | + if (!HostnameChecker.match(host, getPeerPrincipal())) { | |
| 570 | + throw new SSLPeerUnverifiedException("Hostname checker" + | |
| 571 | + " failed for Kerberos"); | |
| 572 | + } | |
| 573 | + } else { // X.509 | |
| 574 | + | |
| 575 | + // get the subject's certificate | |
| 576 | + peerCerts = session.getPeerCertificates(); | |
| 577 | + | |
| 578 | + X509Certificate peerCert; | |
| 579 | + if (peerCerts[0] instanceof | |
| 580 | + java.security.cert.X509Certificate) { | |
| 581 | + peerCert = (java.security.cert.X509Certificate)peerCerts[0]; | |
| 582 | + } else { | |
| 583 | + throw new SSLPeerUnverifiedException(""); | |
| 584 | + } | |
| 585 | + checker.match(host, peerCert); | |
| 586 | + } | |
| 587 | + | |
| 588 | + // if it doesn't throw an exception, we passed. Return. | |
| 589 | + return; | |
| 590 | + | |
| 591 | + } catch (SSLPeerUnverifiedException e) { | |
| 592 | + | |
| 593 | + // | |
| 594 | + // client explicitly changed default policy and enabled | |
| 595 | + // anonymous ciphers; we can't check the standard policy | |
| 596 | + // | |
| 597 | + // ignore | |
| 598 | + } catch (java.security.cert.CertificateException cpe) { | |
| 599 | + // ignore | |
| 600 | + } | |
| 601 | + | |
| 602 | + if ((cipher != null) && (cipher.indexOf("_anon_") != -1)) { | |
| 603 | + return; | |
| 604 | + } else if ((hostnameVerifier != null) && | |
| 605 | + (hostnameVerifier.verify(host, session))) { | |
| 606 | + return; | |
| 607 | + } | |
| 608 | + | |
| 609 | + serverSocket.close(); | |
| 610 | + session.invalidate(); | |
| 611 | + | |
| 612 | + throw new IOException("HTTPS hostname wrong: should be <" | |
| 613 | + + url.getHost() + ">"); | |
| 614 | + } | |
| 615 | + | |
| 616 | + @Override | |
| 617 | + protected void putInKeepAliveCache() { | |
| 618 | + kac.put(url, sslSocketFactory, this); | |
| 619 | + } | |
| 620 | + | |
| 621 | + /* | |
| 622 | + * Close an idle connection to this URL (if it exists in the cache). | |
| 623 | + */ | |
| 624 | + @Override | |
| 625 | + public void closeIdleConnection() { | |
| 626 | + HttpClient http = (HttpClient) kac.get(url, sslSocketFactory); | |
| 627 | + if (http != null) { | |
| 628 | + http.closeServer(); | |
| 629 | + } | |
| 630 | + } | |
| 631 | + | |
| 632 | + /** | |
| 633 | + * Returns the cipher suite in use on this connection. | |
| 634 | + */ | |
| 635 | + String getCipherSuite() { | |
| 636 | + return session.getCipherSuite(); | |
| 637 | + } | |
| 638 | + | |
| 639 | + /** | |
| 640 | + * Returns the certificate chain the client sent to the | |
| 641 | + * server, or null if the client did not authenticate. | |
| 642 | + */ | |
| 643 | + public java.security.cert.Certificate [] getLocalCertificates() { | |
| 644 | + return session.getLocalCertificates(); | |
| 645 | + } | |
| 646 | + | |
| 647 | + /** | |
| 648 | + * Returns the certificate chain with which the server | |
| 649 | + * authenticated itself, or throw a SSLPeerUnverifiedException | |
| 650 | + * if the server did not authenticate. | |
| 651 | + */ | |
| 652 | + java.security.cert.Certificate [] getServerCertificates() | |
| 653 | + throws SSLPeerUnverifiedException | |
| 654 | + { | |
| 655 | + return session.getPeerCertificates(); | |
| 656 | + } | |
| 657 | + | |
| 658 | + /** | |
| 659 | + * Returns the X.509 certificate chain with which the server | |
| 660 | + * authenticated itself, or null if the server did not authenticate. | |
| 661 | + */ | |
| 662 | + javax.security.cert.X509Certificate [] getServerCertificateChain() | |
| 663 | + throws SSLPeerUnverifiedException | |
| 664 | + { | |
| 665 | + return session.getPeerCertificateChain(); | |
| 666 | + } | |
| 667 | + | |
| 668 | + /** | |
| 669 | + * Returns the principal with which the server authenticated | |
| 670 | + * itself, or throw a SSLPeerUnverifiedException if the | |
| 671 | + * server did not authenticate. | |
| 672 | + */ | |
| 673 | + Principal getPeerPrincipal() | |
| 674 | + throws SSLPeerUnverifiedException | |
| 675 | + { | |
| 676 | + Principal principal; | |
| 677 | + try { | |
| 678 | + principal = session.getPeerPrincipal(); | |
| 679 | + } catch (AbstractMethodError e) { | |
| 680 | + // if the provider does not support it, fallback to peer certs. | |
| 681 | + // return the X500Principal of the end-entity cert. | |
| 682 | + java.security.cert.Certificate[] certs = | |
| 683 | + session.getPeerCertificates(); | |
| 684 | + principal = (X500Principal) | |
| 685 | + ((X509Certificate)certs[0]).getSubjectX500Principal(); | |
| 686 | + } | |
| 687 | + return principal; | |
| 688 | + } | |
| 689 | + | |
| 690 | + /** | |
| 691 | + * Returns the principal the client sent to the | |
| 692 | + * server, or null if the client did not authenticate. | |
| 693 | + */ | |
| 694 | + Principal getLocalPrincipal() | |
| 695 | + { | |
| 696 | + Principal principal; | |
| 697 | + try { | |
| 698 | + principal = session.getLocalPrincipal(); | |
| 699 | + } catch (AbstractMethodError e) { | |
| 700 | + principal = null; | |
| 701 | + // if the provider does not support it, fallback to local certs. | |
| 702 | + // return the X500Principal of the end-entity cert. | |
| 703 | + java.security.cert.Certificate[] certs = | |
| 704 | + session.getLocalCertificates(); | |
| 705 | + if (certs != null) { | |
| 706 | + principal = (X500Principal) | |
| 707 | + ((X509Certificate)certs[0]).getSubjectX500Principal(); | |
| 708 | + } | |
| 709 | + } | |
| 710 | + return principal; | |
| 711 | + } | |
| 712 | + | |
| 713 | + /** | |
| 714 | + * This method implements the SSL HandshakeCompleted callback, | |
| 715 | + * remembering the resulting session so that it may be queried | |
| 716 | + * for the current cipher suite and peer certificates. Servers | |
| 717 | + * sometimes re-initiate handshaking, so the session in use on | |
| 718 | + * a given connection may change. When sessions change, so may | |
| 719 | + * peer identities and cipher suites. | |
| 720 | + */ | |
| 721 | + public void handshakeCompleted(HandshakeCompletedEvent event) | |
| 722 | + { | |
| 723 | + session = event.getSession(); | |
| 724 | + } | |
| 725 | + | |
| 726 | + /** | |
| 727 | + * @return the proxy host being used for this client, or null | |
| 728 | + * if we're not going through a proxy | |
| 729 | + */ | |
| 730 | + @Override | |
| 731 | + public String getProxyHostUsed() { | |
| 732 | + if (!needsTunneling()) { | |
| 733 | + return null; | |
| 734 | + } else { | |
| 735 | + return super.getProxyHostUsed(); | |
| 736 | + } | |
| 737 | + } | |
| 738 | + | |
| 739 | + /** | |
| 740 | + * @return the proxy port being used for this client. Meaningless | |
| 741 | + * if getProxyHostUsed() gives null. | |
| 742 | + */ | |
| 743 | + @Override | |
| 744 | + public int getProxyPortUsed() { | |
| 745 | + return (proxy == null || proxy.type() == Proxy.Type.DIRECT || | |
| 746 | + proxy.type() == Proxy.Type.SOCKS)? -1: | |
| 747 | + ((InetSocketAddress)proxy.address()).getPort(); | |
| 748 | + } | |
| 749 | +} | |