+++ /dev/null
-/* SecureClassLoader.java --- A Secure Class Loader
- Copyright (C) 1999 Free Software Foundation, Inc.
-
-This file is part of GNU Classpath.
-
-GNU Classpath is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU Classpath 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 for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU Classpath; see the file COPYING. If not, write to the
-Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-02111-1307 USA.
-
-Linking this library statically or dynamically with other modules is
-making a combined work based on this library. Thus, the terms and
-conditions of the GNU General Public License cover the whole
-combination.
-
-As a special exception, the copyright holders of this library give you
-permission to link this library with independent modules to produce an
-executable, regardless of the license terms of these independent
-modules, and to copy and distribute the resulting executable under
-terms of your choice, provided that you also meet, for each linked
-independent module, the terms and conditions of the license of that
-module. An independent module is a module which is not derived from
-or based on this library. If you modify this library, you may extend
-this exception to your version of the library, but you are not
-obligated to do so. If you do not wish to do so, delete this
-exception statement from your version. */
-
-package java.security;
-
-/**
- A Secure Class Loader for loading classes with additional
- support for specifying code source and permissions when
- they are retrieved by the system policy handler.
-
- @since JDK 1.2
-
- @author Mark Benvenuto
- */
-public class SecureClassLoader extends ClassLoader
-{
- protected SecureClassLoader(ClassLoader parent)
- {
- super(parent);
- // FIXME: What else?
- }
-
- protected SecureClassLoader()
- {
- // FIXME: What do we need to do here?
- }
-
- /**
- Creates a class using an array of bytes and a
- CodeSource.
-
- @param name the name to give the class. null if unknown.
- @param b the data representing the classfile, in classfile format.
- @param off the offset into the data where the classfile starts.
- @param len the length of the classfile data in the array.
- @param cs the CodeSource for the class
-
- @return the class that was defined and optional CodeSource.
-
- @exception ClassFormatError if the byte array is not in proper classfile format.
- */
- protected final Class defineClass(String name, byte[] b, int off, int len,
- CodeSource cs)
- {
- // FIXME: Need to cache ProtectionDomains according to 1.3 docs.
- ProtectionDomain protectionDomain =
- new ProtectionDomain(cs, getPermissions(cs));
- try
- {
- return super.defineClass(name, b, off, len, protectionDomain);
- }
- catch (ClassFormatError cfe)
- {
- return null;
- }
- }
-
- /**
- Returns a PermissionCollection for the specified CodeSource.
- The default implmentation invokes
- java.security.Policy.getPermissions.
-
- This method is called by defineClass that takes a CodeSource
- arguement to build a proper ProtectionDomain for the class
- being defined.
-
- */
- protected PermissionCollection getPermissions(CodeSource cs)
- {
- Policy policy = Policy.getPolicy();
- return policy.getPermissions(cs);
- }
-}