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/* TestCryptoLevel -- Ensure unlimited crypto policy is in use.
Copyright (C) 2012 Red Hat, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
This program 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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.lang.reflect.InvocationTargetException;
import java.security.Permission;
import java.security.PermissionCollection;
public class TestCryptoLevel
{
public static void main(String[] args)
throws NoSuchFieldException, ClassNotFoundException,
IllegalAccessException, InvocationTargetException
{
Class<?> cls = null;
Method def = null, exempt = null;
try
{
cls = Class.forName("javax.crypto.JceSecurity");
}
catch (ClassNotFoundException ex)
{
System.err.println("Running a non-Sun JDK.");
System.exit(0);
}
catch (ExceptionInInitializerError err)
{
System.err.println("Failed to initialise JceSecurity: "
+ err.getCause().getCause().getMessage());
System.exit(-2);
}
try
{
def = cls.getDeclaredMethod("getDefaultPolicy");
exempt = cls.getDeclaredMethod("getExemptPolicy");
}
catch (NoSuchMethodException ex)
{
System.err.println("Running IcedTea with the original crypto patch.");
System.exit(0);
}
def.setAccessible(true);
exempt.setAccessible(true);
PermissionCollection defPerms = (PermissionCollection) def.invoke(null);
PermissionCollection exemptPerms = (PermissionCollection) exempt.invoke(null);
Class<?> apCls = Class.forName("javax.crypto.CryptoAllPermission");
Field apField = apCls.getDeclaredField("INSTANCE");
apField.setAccessible(true);
Permission allPerms = (Permission) apField.get(null);
if (defPerms.implies(allPerms) && (exemptPerms == null || exemptPerms.implies(allPerms)))
{
System.err.println("Running with the unlimited policy.");
System.exit(0);
}
else
{
System.err.println("WARNING: Running with a restricted crypto policy.");
System.exit(-1);
}
}
}
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