| /* |
| * Copyright (c) 2009, 2013, 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.io.IOException; |
| import java.lang.reflect.Constructor; |
| import sun.util.logging.PlatformLogger; |
| |
| /** |
| * This abstract class is a bridge to connect NegotiteAuthentication and |
| * NegotiatorImpl, so that JAAS and JGSS calls can be made |
| */ |
| public abstract class Negotiator { |
| static Negotiator getNegotiator(HttpCallerInfo hci) { |
| |
| // These lines are equivalent to |
| // return new NegotiatorImpl(hci); |
| // The current implementation will make sure NegotiatorImpl is not |
| // directly referenced when compiling, thus smooth the way of building |
| // the J2SE platform where HttpURLConnection is a bootstrap class. |
| // |
| // Makes NegotiatorImpl, and the security classes it references, a |
| // runtime dependency rather than a static one. |
| |
| Class<?> clazz; |
| Constructor<?> c; |
| try { |
| clazz = Class.forName("sun.net.www.protocol.http.spnego.NegotiatorImpl", |
| true, |
| ClassLoader.getPlatformClassLoader()); |
| c = clazz.getConstructor(HttpCallerInfo.class); |
| } catch (ClassNotFoundException cnfe) { |
| finest(cnfe); |
| return null; |
| } catch (ReflectiveOperationException roe) { |
| // if the class is there then something seriously wrong if |
| // the constructor is not. |
| throw new AssertionError(roe); |
| } |
| |
| try { |
| return (Negotiator) (c.newInstance(hci)); |
| } catch (ReflectiveOperationException roe) { |
| finest(roe); |
| Throwable t = roe.getCause(); |
| if (t != null && t instanceof Exception) |
| finest((Exception)t); |
| return null; |
| } |
| } |
| |
| public abstract byte[] firstToken() throws IOException; |
| |
| public abstract byte[] nextToken(byte[] in) throws IOException; |
| |
| private static void finest(Exception e) { |
| PlatformLogger logger = HttpURLConnection.getHttpLogger(); |
| if (logger.isLoggable(PlatformLogger.Level.FINEST)) { |
| logger.finest("NegotiateAuthentication: " + e); |
| } |
| } |
| } |
| |