author | ohair |
Wed, 06 Apr 2011 22:06:11 -0700 | |
changeset 9035 | 1255eb81cc2f |
parent 8815 | 9a3f042d307e |
child 16839 | d0f2e97b7359 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
|
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* questions. |
|
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*/ |
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package sun.net.www.protocol.http; |
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import java.net.URL; |
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import java.net.PasswordAuthentication; |
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import java.lang.reflect.Constructor; |
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import java.lang.reflect.Method; |
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import sun.util.logging.PlatformLogger; |
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/** |
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* Proxy class for loading NTLMAuthentication, so as to remove static |
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* dependancy. |
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*/ |
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class NTLMAuthenticationProxy { |
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private static Method supportsTA; |
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private static Method isTrustedSite; |
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private static final String clazzStr = "sun.net.www.protocol.http.ntlm.NTLMAuthentication"; |
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private static final String supportsTAStr = "supportsTransparentAuth"; |
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private static final String isTrustedSiteStr = "isTrustedSite"; |
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static final NTLMAuthenticationProxy proxy = tryLoadNTLMAuthentication(); |
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static final boolean supported = proxy != null ? true : false; |
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static final boolean supportsTransparentAuth = supported ? supportsTransparentAuth() : false; |
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private final Constructor<? extends AuthenticationInfo> threeArgCtr; |
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private final Constructor<? extends AuthenticationInfo> fiveArgCtr; |
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private NTLMAuthenticationProxy(Constructor<? extends AuthenticationInfo> threeArgCtr, |
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Constructor<? extends AuthenticationInfo> fiveArgCtr) { |
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this.threeArgCtr = threeArgCtr; |
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this.fiveArgCtr = fiveArgCtr; |
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} |
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AuthenticationInfo create(boolean isProxy, |
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URL url, |
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PasswordAuthentication pw) { |
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try { |
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return threeArgCtr.newInstance(isProxy, url, pw); |
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} catch (ReflectiveOperationException roe) { |
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finest(roe); |
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} |
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return null; |
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} |
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AuthenticationInfo create(boolean isProxy, |
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String host, |
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int port, |
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PasswordAuthentication pw) { |
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try { |
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return fiveArgCtr.newInstance(isProxy, host, port, pw); |
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} catch (ReflectiveOperationException roe) { |
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finest(roe); |
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} |
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return null; |
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} |
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/* Returns true if the NTLM implementation supports transparent |
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* authentication (try with the current users credentials before |
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* prompting for username and password, etc). |
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*/ |
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private static boolean supportsTransparentAuth() { |
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try { |
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return (Boolean)supportsTA.invoke(null); |
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} catch (ReflectiveOperationException roe) { |
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finest(roe); |
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} |
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return false; |
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} |
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/* Transparent authentication should only be tried with a trusted |
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* site ( when running in a secure environment ). |
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*/ |
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public static boolean isTrustedSite(URL url) { |
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try { |
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return (Boolean)isTrustedSite.invoke(null, url); |
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} catch (ReflectiveOperationException roe) { |
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finest(roe); |
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} |
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return false; |
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} |
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|
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/** |
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* Loads the NTLM authentiation implementation through reflection. If |
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* the class is present, then it must have the required constructors and |
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* method. Otherwise, it is considered an error. |
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114 |
*/ |
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@SuppressWarnings("unchecked") |
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private static NTLMAuthenticationProxy tryLoadNTLMAuthentication() { |
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117 |
Class<? extends AuthenticationInfo> cl; |
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118 |
Constructor<? extends AuthenticationInfo> threeArg, fiveArg; |
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119 |
try { |
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120 |
cl = (Class<? extends AuthenticationInfo>)Class.forName(clazzStr, true, null); |
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if (cl != null) { |
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threeArg = cl.getConstructor(boolean.class, |
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URL.class, |
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PasswordAuthentication.class); |
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fiveArg = cl.getConstructor(boolean.class, |
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String.class, |
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int.class, |
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128 |
PasswordAuthentication.class); |
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supportsTA = cl.getDeclaredMethod(supportsTAStr); |
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isTrustedSite = cl.getDeclaredMethod(isTrustedSiteStr, java.net.URL.class); |
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return new NTLMAuthenticationProxy(threeArg, |
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132 |
fiveArg); |
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133 |
} |
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} catch (ClassNotFoundException cnfe) { |
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finest(cnfe); |
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} catch (ReflectiveOperationException roe) { |
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throw new AssertionError(roe); |
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} |
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|
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return null; |
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} |
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|
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static void finest(Exception e) { |
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PlatformLogger logger = HttpURLConnection.getHttpLogger(); |
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logger.finest("NTLMAuthenticationProxy: " + e); |
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} |
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} |