| /* |
| * Copyright (c) 2009, 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * 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. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| package sun.net.www.protocol.http; |
| |
| import java.net.URL; |
| import java.net.PasswordAuthentication; |
| import java.lang.reflect.Constructor; |
| import java.lang.reflect.Method; |
| import sun.util.logging.PlatformLogger; |
| |
| /** |
| * Proxy class for loading NTLMAuthentication, so as to remove static |
| * dependancy. |
| */ |
| class NTLMAuthenticationProxy { |
| private static Method supportsTA; |
| private static Method isTrustedSite; |
| private static final String clazzStr = "sun.net.www.protocol.http.ntlm.NTLMAuthentication"; |
| private static final String supportsTAStr = "supportsTransparentAuth"; |
| private static final String isTrustedSiteStr = "isTrustedSite"; |
| |
| static final NTLMAuthenticationProxy proxy = tryLoadNTLMAuthentication(); |
| static final boolean supported = proxy != null ? true : false; |
| static final boolean supportsTransparentAuth = supported ? supportsTransparentAuth() : false; |
| |
| private final Constructor<? extends AuthenticationInfo> fourArgCtr; |
| private final Constructor<? extends AuthenticationInfo> sixArgCtr; |
| |
| private NTLMAuthenticationProxy(Constructor<? extends AuthenticationInfo> fourArgCtr, |
| Constructor<? extends AuthenticationInfo> sixArgCtr) { |
| this.fourArgCtr = fourArgCtr; |
| this.sixArgCtr = sixArgCtr; |
| } |
| |
| |
| AuthenticationInfo create(boolean isProxy, |
| URL url, |
| PasswordAuthentication pw, |
| String authenticatorKey) { |
| try { |
| return fourArgCtr.newInstance(isProxy, url, pw, authenticatorKey); |
| } catch (ReflectiveOperationException roe) { |
| finest(roe); |
| } |
| |
| return null; |
| } |
| |
| AuthenticationInfo create(boolean isProxy, |
| String host, |
| int port, |
| PasswordAuthentication pw, |
| String authenticatorKey) { |
| try { |
| return sixArgCtr.newInstance(isProxy, host, port, pw, authenticatorKey); |
| } catch (ReflectiveOperationException roe) { |
| finest(roe); |
| } |
| |
| return null; |
| } |
| |
| /* Returns true if the NTLM implementation supports transparent |
| * authentication (try with the current users credentials before |
| * prompting for username and password, etc). |
| */ |
| private static boolean supportsTransparentAuth() { |
| try { |
| return (Boolean)supportsTA.invoke(null); |
| } catch (ReflectiveOperationException roe) { |
| finest(roe); |
| } |
| |
| return false; |
| } |
| |
| /* Transparent authentication should only be tried with a trusted |
| * site ( when running in a secure environment ). |
| */ |
| public static boolean isTrustedSite(URL url) { |
| try { |
| return (Boolean)isTrustedSite.invoke(null, url); |
| } catch (ReflectiveOperationException roe) { |
| finest(roe); |
| } |
| |
| return false; |
| } |
| |
| /** |
| * Loads the NTLM authentiation implementation through reflection. If |
| * the class is present, then it must have the required constructors and |
| * method. Otherwise, it is considered an error. |
| */ |
| @SuppressWarnings("unchecked") |
| private static NTLMAuthenticationProxy tryLoadNTLMAuthentication() { |
| Class<? extends AuthenticationInfo> cl; |
| Constructor<? extends AuthenticationInfo> fourArg, sixArg; |
| try { |
| cl = (Class<? extends AuthenticationInfo>)Class.forName(clazzStr, true, null); |
| if (cl != null) { |
| fourArg = cl.getConstructor(boolean.class, |
| URL.class, |
| PasswordAuthentication.class, |
| String.class); |
| sixArg = cl.getConstructor(boolean.class, |
| String.class, |
| int.class, |
| PasswordAuthentication.class, |
| String.class); |
| supportsTA = cl.getDeclaredMethod(supportsTAStr); |
| isTrustedSite = cl.getDeclaredMethod(isTrustedSiteStr, java.net.URL.class); |
| return new NTLMAuthenticationProxy(fourArg, |
| sixArg); |
| } |
| } catch (ClassNotFoundException cnfe) { |
| finest(cnfe); |
| } catch (ReflectiveOperationException roe) { |
| throw new AssertionError(roe); |
| } |
| |
| return null; |
| } |
| |
| static void finest(Exception e) { |
| PlatformLogger logger = HttpURLConnection.getHttpLogger(); |
| if (logger.isLoggable(PlatformLogger.Level.FINEST)) { |
| logger.finest("NTLMAuthenticationProxy: " + e); |
| } |
| } |
| } |