| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.commons.jcs3.io; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.ObjectInputStream; |
| import java.io.ObjectStreamClass; |
| import java.lang.reflect.Proxy; |
| |
| public class ObjectInputStreamClassLoaderAware extends ObjectInputStream { |
| private final ClassLoader classLoader; |
| |
| public ObjectInputStreamClassLoaderAware(final InputStream in, final ClassLoader classLoader) throws IOException { |
| super(in); |
| this.classLoader = classLoader != null ? classLoader : Thread.currentThread().getContextClassLoader(); |
| } |
| |
| @Override |
| protected Class<?> resolveClass(final ObjectStreamClass desc) throws ClassNotFoundException { |
| return Class.forName(BlacklistClassResolver.DEFAULT.check(desc.getName()), false, classLoader); |
| } |
| |
| @Override |
| protected Class<?> resolveProxyClass(final String[] interfaces) throws IOException, ClassNotFoundException { |
| final Class<?>[] cinterfaces = new Class[interfaces.length]; |
| for (int i = 0; i < interfaces.length; i++) { |
| cinterfaces[i] = Class.forName(interfaces[i], false, classLoader); |
| } |
| |
| try { |
| return Proxy.getProxyClass(classLoader, cinterfaces); |
| } catch (final IllegalArgumentException e) { |
| throw new ClassNotFoundException(null, e); |
| } |
| } |
| |
| private static class BlacklistClassResolver { |
| private static final BlacklistClassResolver DEFAULT = new BlacklistClassResolver( |
| toArray(System.getProperty( |
| "jcs.serialization.class.blacklist", |
| "org.codehaus.groovy.runtime.,org.apache.commons.collections.functors.,org.apache.xalan")), |
| toArray(System.getProperty("jcs.serialization.class.whitelist"))); |
| |
| private final String[] blacklist; |
| private final String[] whitelist; |
| |
| protected BlacklistClassResolver(final String[] blacklist, final String[] whitelist) { |
| this.whitelist = whitelist; |
| this.blacklist = blacklist; |
| } |
| |
| protected boolean isBlacklisted(final String name) { |
| return whitelist != null && !contains(whitelist, name) || contains(blacklist, name); |
| } |
| |
| public final String check(final String name) { |
| if (isBlacklisted(name)) { |
| throw new SecurityException(name + " is not whitelisted as deserialisable, prevented before loading."); |
| } |
| return name; |
| } |
| |
| private static String[] toArray(final String property) { |
| return property == null ? null : property.split(" *, *"); |
| } |
| |
| private static boolean contains(final String[] list, final String name) { |
| if (list != null) { |
| for (final String white : list) { |
| if (name.startsWith(white)) { |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| } |
| } |