J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1996-2006 Sun Microsystems, Inc. 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package sun.security.provider; |
| 27 | |
| 28 | import java.util.*; |
| 29 | import java.security.*; |
| 30 | |
| 31 | import sun.security.action.PutAllAction; |
| 32 | |
| 33 | import sun.security.rsa.SunRsaSignEntries; |
| 34 | |
| 35 | /** |
| 36 | * Provider used for verification of signed JAR files *if* the Sun and |
| 37 | * SunRsaSign main classes have been removed. Otherwise, this provider is not |
| 38 | * necessary and registers no algorithms. This functionality only exists to |
| 39 | * support a use case required by a specific customer and is not generally |
| 40 | * supported. |
| 41 | * |
| 42 | * @since 1.7 |
| 43 | * @author Andreas Sterbenz |
| 44 | */ |
| 45 | public final class VerificationProvider extends Provider { |
| 46 | |
| 47 | private static final long serialVersionUID = 7482667077568930381L; |
| 48 | |
| 49 | private static final boolean ACTIVE; |
| 50 | |
| 51 | static { |
| 52 | boolean b; |
| 53 | try { |
| 54 | Class.forName("sun.security.provider.Sun"); |
| 55 | Class.forName("sun.security.rsa.SunRsaSign"); |
| 56 | b = false; |
| 57 | } catch (ClassNotFoundException e) { |
| 58 | b = true; |
| 59 | } |
| 60 | ACTIVE = b; |
| 61 | } |
| 62 | |
| 63 | public VerificationProvider() { |
| 64 | super("SunJarVerification", 1.7, "Jar Verification Provider"); |
| 65 | // register all algorithms normally registered by the Sun and SunRsaSign |
| 66 | // providers, but only if they are missing |
| 67 | if (ACTIVE == false) { |
| 68 | return; |
| 69 | } |
| 70 | |
| 71 | // if there is no security manager installed, put directly into |
| 72 | // the provider. Otherwise, create a temporary map and use a |
| 73 | // doPrivileged() call at the end to transfer the contents |
| 74 | if (System.getSecurityManager() == null) { |
| 75 | SunEntries.putEntries(this); |
| 76 | SunRsaSignEntries.putEntries(this); |
| 77 | } else { |
| 78 | // use LinkedHashMap to preserve the order of the PRNGs |
| 79 | Map<Object, Object> map = new LinkedHashMap<Object, Object>(); |
| 80 | SunEntries.putEntries(map); |
| 81 | SunRsaSignEntries.putEntries(map); |
| 82 | AccessController.doPrivileged(new PutAllAction(this, map)); |
| 83 | } |
| 84 | } |
| 85 | |
| 86 | } |