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/*
* 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.tomcat.util.security;
import java.lang.reflect.Field;
import java.security.AccessControlContext;
import java.security.AccessController;
import java.security.PrivilegedAction;
import org.apache.juli.logging.Log;
import org.apache.juli.logging.LogFactory;
import org.apache.tomcat.util.res.StringManager;
public class PrivilegedSetAccessControlContext implements PrivilegedAction<Void> {
private static final Log log = LogFactory.getLog(PrivilegedSetAccessControlContext.class);
private static final StringManager sm = StringManager.getManager(PrivilegedSetAccessControlContext.class);
private static final AccessControlContext acc;
private static final Field field;
static {
acc = AccessController.getContext();
Field f = null;
try {
f = Thread.class.getDeclaredField("inheritedAccessControlContext");
f.setAccessible(true);
} catch (NoSuchFieldException | SecurityException e) {
log.warn(sm.getString("privilegedSetAccessControlContext.lookupFailed"), e);
}
field = f;
}
private final Thread t;
public PrivilegedSetAccessControlContext(Thread t) {
this.t = t;
}
@Override
public Void run() {
try {
if (field != null) {
field.set(t, acc);
}
} catch (IllegalArgumentException | IllegalAccessException e) {
log.warn(sm.getString("privilegedSetAccessControlContext.setFailed"), e);
}
return null;
}
}
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