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/*
* Javassist, a Java-bytecode translator toolkit.
* Copyright (C) 1999- Shigeru Chiba. All Rights Reserved.
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. Alternatively, the contents of this file may be used under
* the terms of the GNU Lesser General Public License Version 2.1 or later,
* or the Apache License Version 2.0.
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*/
package javassist.util.proxy;
import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodHandles;
import java.lang.reflect.AccessibleObject;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.security.PrivilegedActionException;
import java.security.PrivilegedExceptionAction;
class SecurityActions {
static Method[] getDeclaredMethods(final Class clazz) {
if (System.getSecurityManager() == null)
return clazz.getDeclaredMethods();
else {
return (Method[]) AccessController
.doPrivileged(new PrivilegedAction() {
public Object run() {
return clazz.getDeclaredMethods();
}
});
}
}
static Constructor[] getDeclaredConstructors(final Class clazz) {
if (System.getSecurityManager() == null)
return clazz.getDeclaredConstructors();
else {
return (Constructor[]) AccessController
.doPrivileged(new PrivilegedAction() {
public Object run() {
return clazz.getDeclaredConstructors();
}
});
}
}
static MethodHandle getMethodHandle(final Class<?> clazz, final
String name, final Class<?>[] params) throws NoSuchMethodException
{
try {
return AccessController.doPrivileged(
new PrivilegedExceptionAction<MethodHandle>() {
public MethodHandle run() throws IllegalAccessException,
NoSuchMethodException, SecurityException {
Method rmet = clazz.getDeclaredMethod(name, params);
rmet.setAccessible(true);
MethodHandle meth = MethodHandles.lookup().unreflect(rmet);
rmet.setAccessible(false);
return meth;
}
});
}
catch (PrivilegedActionException e) {
if (e.getCause() instanceof NoSuchMethodException)
throw (NoSuchMethodException) e.getCause();
throw new RuntimeException(e.getCause());
}
}
static Method getDeclaredMethod(final Class<?> clazz, final String name,
final Class<?>[] types) throws NoSuchMethodException
{
if (System.getSecurityManager() == null)
return clazz.getDeclaredMethod(name, types);
else {
try {
return (Method) AccessController
.doPrivileged(new PrivilegedExceptionAction() {
public Object run() throws Exception {
return clazz.getDeclaredMethod(name, types);
}
});
}
catch (PrivilegedActionException e) {
if (e.getCause() instanceof NoSuchMethodException)
throw (NoSuchMethodException) e.getCause();
throw new RuntimeException(e.getCause());
}
}
}
static Constructor getDeclaredConstructor(final Class clazz,
final Class[] types)
throws NoSuchMethodException
{
if (System.getSecurityManager() == null)
return clazz.getDeclaredConstructor(types);
else {
try {
return (Constructor) AccessController
.doPrivileged(new PrivilegedExceptionAction() {
public Object run() throws Exception {
return clazz.getDeclaredConstructor(types);
}
});
}
catch (PrivilegedActionException e) {
if (e.getCause() instanceof NoSuchMethodException)
throw (NoSuchMethodException) e.getCause();
throw new RuntimeException(e.getCause());
}
}
}
static void setAccessible(final AccessibleObject ao,
final boolean accessible) {
if (System.getSecurityManager() == null)
ao.setAccessible(accessible);
else {
AccessController.doPrivileged(new PrivilegedAction() {
public Object run() {
ao.setAccessible(accessible);
return null;
}
});
}
}
static void set(final Field fld, final Object target, final Object value)
throws IllegalAccessException
{
if (System.getSecurityManager() == null)
fld.set(target, value);
else {
try {
AccessController.doPrivileged(new PrivilegedExceptionAction() {
public Object run() throws Exception {
fld.set(target, value);
return null;
}
});
}
catch (PrivilegedActionException e) {
if (e.getCause() instanceof NoSuchMethodException)
throw (IllegalAccessException) e.getCause();
throw new RuntimeException(e.getCause());
}
}
}
}
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