/* * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code 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 * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.sun.rmi.rmid; import java.security.*; import java.io.*; import java.util.*; /** * The ExecPermission class represents permission for rmid to execute * a specific command to launch an activation group. An ExecPermission * consists of a pathname of a command to launch an activation group. *
* Pathname is the pathname of the file or directory to grant rmid
* execute permission. A pathname that ends in "/*" (where "/" is
* the file separator character,
* Note: A pathname consisting of a single "*" indicates all the files
* in the current directory, while a pathname consisting of a single "-"
* indicates all the files in the current directory and
* (recursively) all files and subdirectories contained in the current
* directory.
*
*
* @author Ann Wollrath
*
* @serial exclude
*/
public final class ExecPermission extends Permission
{
/**
* UID for serialization
*/
private static final long serialVersionUID = -6208470287358147919L;
private transient FilePermission fp;
/**
* Creates a new ExecPermission object with the specified path.
* path is the pathname of a file or directory.
*
* A pathname that ends in "/*" (where "/" is
* the file separator character, A pathname consisting of a single "*" indicates all the files
* in the current directory, while a pathname consisting of a single "-"
* indicates all the files in the current directory and
* (recursively) all files and subdirectories contained in the current
* directory.
*
* @param path the pathname of the file/directory.
*/
public ExecPermission(String path) {
super(path);
init(path);
}
/**
* Creates a new ExecPermission object with the specified path.
* path is the pathname of a file or directory.
*
* A pathname that ends in "/*" (where "/" is
* the file separator character, A pathname consisting of a single "*" indicates all the files
* in the current directory, while a pathname consisting of a single "-"
* indicates all the files in the current directory and
* (recursively) all files and subdirectories contained in the current
* directory.
*
* @param path the pathname of the file/directory.
* @param actions the action string (unused)
*/
public ExecPermission(String path, String actions) {
this(path);
}
/**
* Checks if this ExecPermission object "implies" the specified permission.
*
* More specifically, this method returns true if:
*
* A ExecPermissionCollection stores a collection of
* ExecPermission permissions.
*
* ExecPermission objects must be stored in a manner that allows
* them to be inserted in any order, but that also enables the
* PermissionCollection File.separatorChar
) indicates
* all the files and directories contained in that directory. A pathname
* that ends with "/-" indicates (recursively) all files
* and subdirectories contained in that directory. A pathname consisting of
* the special token "{@code <File.separatorChar
) indicates
* a directory and all the files contained in that directory. A pathname
* that ends with "/-" indicates a directory and (recursively) all files
* and subdirectories contained in that directory. The special pathname
* "{@code <File.separatorChar
) indicates
* a directory and all the files contained in that directory. A pathname
* that ends with "/-" indicates a directory and (recursively) all files
* and subdirectories contained in that directory. The special pathname
* "{@code <
*
* @param p the permission to check against.
*
* @return true if the specified permission is implied by this object,
* false if not.
*/
public boolean implies(Permission p) {
if (!(p instanceof ExecPermission))
return false;
ExecPermission that = (ExecPermission) p;
return fp.implies(that.fp);
}
/**
* Checks two ExecPermission objects for equality.
* Checks that obj's class is the same as this object's class
* and has the same name as this object.
*
* @param obj the object we are testing for equality with this object.
* @return true if obj is an ExecPermission, and has the same
* pathname as this ExecPermission object, false otherwise.
*/
public boolean equals(Object obj) {
if (obj == this)
return true;
if (! (obj instanceof ExecPermission))
return false;
ExecPermission that = (ExecPermission) obj;
return fp.equals(that.fp);
}
/**
* Returns the hash code value for this object.
*
* @return a hash code value for this object.
*/
public int hashCode() {
return this.fp.hashCode();
}
/**
* Returns the canonical string representation of the actions.
*
* @return the canonical string representation of the actions.
*/
public String getActions() {
return "";
}
/**
* Returns a new PermissionCollection object for storing
* ExecPermission objects.
* implies
method
* to be implemented in an efficient (and consistent) manner.
*
* @return a new PermissionCollection object suitable for
* storing ExecPermissions.
*/
public PermissionCollection newPermissionCollection() {
return new ExecPermissionCollection();
}
/**
* readObject is called to restore the state of the ExecPermission
* from a stream.
*/
private synchronized void readObject(java.io.ObjectInputStream s)
throws IOException, ClassNotFoundException
{
s.defaultReadObject();
// init is called to initialize the rest of the values.
init(getName());
}
/**
* Initialize a ExecPermission object. Common to all constructors.
* Also called during de-serialization.
*/
private void init(String path) {
this.fp = new FilePermission(path, "execute");
}
/**
* A ExecPermissionCollection stores a collection
* of ExecPermission permissions. ExecPermission objects
* must be stored in a manner that allows them to be inserted in any
* order, but enable the implies function to evaluate the implies
* method in an efficient (and consistent) manner.
*
* @serial include
*/
private static class ExecPermissionCollection
extends PermissionCollection
implements java.io.Serializable
{
private Vector