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841 lines
28 KiB
841 lines
28 KiB
/*
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* Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*/
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package java.io;
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import java.security.*;
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import java.util.Enumeration;
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import java.util.List;
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import java.util.ArrayList;
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import java.util.Vector;
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import java.util.Collections;
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import sun.security.util.SecurityConstants;
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/**
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* This class represents access to a file or directory. A FilePermission consists
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* of a pathname and a set of actions valid for that pathname.
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* <P>
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* Pathname is the pathname of the file or directory granted the specified
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* actions. A pathname that ends in "/*" (where "/" is
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* the file separator character, <code>File.separatorChar</code>) indicates
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* all the files and directories contained in that directory. A pathname
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* that ends with "/-" indicates (recursively) all files
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* and subdirectories contained in that directory. A pathname consisting of
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* the special token "<<ALL FILES>>" matches <b>any</b> file.
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* <P>
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* Note: A pathname consisting of a single "*" indicates all the files
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* in the current directory, while a pathname consisting of a single "-"
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* indicates all the files in the current directory and
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* (recursively) all files and subdirectories contained in the current
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* directory.
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* <P>
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* The actions to be granted are passed to the constructor in a string containing
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* a list of one or more comma-separated keywords. The possible keywords are
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* "read", "write", "execute", "delete", and "readlink". Their meaning is
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* defined as follows:
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*
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* <DL>
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* <DT> read <DD> read permission
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* <DT> write <DD> write permission
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* <DT> execute
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* <DD> execute permission. Allows <code>Runtime.exec</code> to
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* be called. Corresponds to <code>SecurityManager.checkExec</code>.
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* <DT> delete
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* <DD> delete permission. Allows <code>File.delete</code> to
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* be called. Corresponds to <code>SecurityManager.checkDelete</code>.
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* <DT> readlink
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* <DD> read link permission. Allows the target of a
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* <a href="../nio/file/package-summary.html#links">symbolic link</a>
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* to be read by invoking the {@link java.nio.file.Files#readSymbolicLink
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* readSymbolicLink } method.
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* </DL>
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* <P>
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* The actions string is converted to lowercase before processing.
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* <P>
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* Be careful when granting FilePermissions. Think about the implications
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* of granting read and especially write access to various files and
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* directories. The "<<ALL FILES>>" permission with write action is
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* especially dangerous. This grants permission to write to the entire
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* file system. One thing this effectively allows is replacement of the
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* system binary, including the JVM runtime environment.
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*
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* <p>Please note: Code can always read a file from the same
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* directory it's in (or a subdirectory of that directory); it does not
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* need explicit permission to do so.
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*
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* @see java.security.Permission
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* @see java.security.Permissions
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* @see java.security.PermissionCollection
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*
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*
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* @author Marianne Mueller
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* @author Roland Schemers
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* @since 1.2
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*
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* @serial exclude
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*/
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public final class FilePermission extends Permission implements Serializable {
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/**
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* Execute action.
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*/
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private final static int EXECUTE = 0x1;
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/**
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* Write action.
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*/
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private final static int WRITE = 0x2;
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/**
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* Read action.
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*/
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private final static int READ = 0x4;
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/**
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* Delete action.
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*/
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private final static int DELETE = 0x8;
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/**
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* Read link action.
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*/
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private final static int READLINK = 0x10;
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/**
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* All actions (read,write,execute,delete,readlink)
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*/
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private final static int ALL = READ|WRITE|EXECUTE|DELETE|READLINK;
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/**
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* No actions.
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*/
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private final static int NONE = 0x0;
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// the actions mask
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private transient int mask;
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// does path indicate a directory? (wildcard or recursive)
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private transient boolean directory;
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// is it a recursive directory specification?
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private transient boolean recursive;
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/**
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* the actions string.
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*
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* @serial
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*/
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private String actions; // Left null as long as possible, then
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// created and re-used in the getAction function.
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// canonicalized dir path. In the case of
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// directories, it is the name "/blah/*" or "/blah/-" without
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// the last character (the "*" or "-").
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private transient String cpath;
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// static Strings used by init(int mask)
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private static final char RECURSIVE_CHAR = '-';
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private static final char WILD_CHAR = '*';
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/*
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public String toString()
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{
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StringBuffer sb = new StringBuffer();
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sb.append("***\n");
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sb.append("cpath = "+cpath+"\n");
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sb.append("mask = "+mask+"\n");
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sb.append("actions = "+getActions()+"\n");
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sb.append("directory = "+directory+"\n");
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sb.append("recursive = "+recursive+"\n");
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sb.append("***\n");
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return sb.toString();
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}
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*/
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private static final long serialVersionUID = 7930732926638008763L;
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/**
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* initialize a FilePermission object. Common to all constructors.
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* Also called during de-serialization.
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*
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* @param mask the actions mask to use.
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*
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*/
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private void init(int mask) {
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if ((mask & ALL) != mask)
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throw new IllegalArgumentException("invalid actions mask");
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if (mask == NONE)
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throw new IllegalArgumentException("invalid actions mask");
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if ((cpath = getName()) == null)
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throw new NullPointerException("name can't be null");
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this.mask = mask;
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if (cpath.equals("<<ALL FILES>>")) {
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directory = true;
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recursive = true;
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cpath = "";
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return;
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}
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// store only the canonical cpath if possible
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cpath = AccessController.doPrivileged(new PrivilegedAction<String>() {
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public String run() {
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try {
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String path = cpath;
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if (cpath.endsWith("*")) {
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// call getCanonicalPath with a path with wildcard character
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// replaced to avoid calling it with paths that are
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// intended to match all entries in a directory
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path = path.substring(0, path.length()-1) + "-";
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path = new File(path).getCanonicalPath();
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return path.substring(0, path.length()-1) + "*";
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} else {
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return new File(path).getCanonicalPath();
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}
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} catch (IOException ioe) {
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return cpath;
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}
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}
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});
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int len = cpath.length();
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char last = ((len > 0) ? cpath.charAt(len - 1) : 0);
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if (last == RECURSIVE_CHAR &&
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cpath.charAt(len - 2) == File.separatorChar) {
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directory = true;
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recursive = true;
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cpath = cpath.substring(0, --len);
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} else if (last == WILD_CHAR &&
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cpath.charAt(len - 2) == File.separatorChar) {
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directory = true;
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//recursive = false;
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cpath = cpath.substring(0, --len);
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} else {
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// overkill since they are initialized to false, but
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// commented out here to remind us...
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//directory = false;
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//recursive = false;
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}
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// XXX: at this point the path should be absolute. die if it isn't?
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}
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/**
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* Creates a new FilePermission object with the specified actions.
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* <i>path</i> is the pathname of a file or directory, and <i>actions</i>
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* contains a comma-separated list of the desired actions granted on the
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* file or directory. Possible actions are
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* "read", "write", "execute", "delete", and "readlink".
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*
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* <p>A pathname that ends in "/*" (where "/" is
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* the file separator character, <code>File.separatorChar</code>)
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* indicates all the files and directories contained in that directory.
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* A pathname that ends with "/-" indicates (recursively) all files and
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* subdirectories contained in that directory. The special pathname
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* "<<ALL FILES>>" matches any file.
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*
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* <p>A pathname consisting of a single "*" indicates all the files
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* in the current directory, while a pathname consisting of a single "-"
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* indicates all the files in the current directory and
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* (recursively) all files and subdirectories contained in the current
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* directory.
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*
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* <p>A pathname containing an empty string represents an empty path.
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*
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* @param path the pathname of the file/directory.
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* @param actions the action string.
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*
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* @throws IllegalArgumentException
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* If actions is <code>null</code>, empty or contains an action
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* other than the specified possible actions.
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*/
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public FilePermission(String path, String actions) {
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super(path);
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init(getMask(actions));
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}
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/**
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* Creates a new FilePermission object using an action mask.
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* More efficient than the FilePermission(String, String) constructor.
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* Can be used from within
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* code that needs to create a FilePermission object to pass into the
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* <code>implies</code> method.
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*
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* @param path the pathname of the file/directory.
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* @param mask the action mask to use.
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*/
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// package private for use by the FilePermissionCollection add method
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FilePermission(String path, int mask) {
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super(path);
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init(mask);
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}
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/**
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* Checks if this FilePermission object "implies" the specified permission.
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* <P>
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* More specifically, this method returns true if:
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* <ul>
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* <li> <i>p</i> is an instanceof FilePermission,
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* <li> <i>p</i>'s actions are a proper subset of this
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* object's actions, and
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* <li> <i>p</i>'s pathname is implied by this object's
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* pathname. For example, "/tmp/*" implies "/tmp/foo", since
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* "/tmp/*" encompasses all files in the "/tmp" directory,
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* including the one named "foo".
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* </ul>
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*
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* @param p the permission to check against.
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*
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* @return <code>true</code> if the specified permission is not
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* <code>null</code> and is implied by this object,
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* <code>false</code> otherwise.
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*/
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public boolean implies(Permission p) {
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if (!(p instanceof FilePermission))
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return false;
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FilePermission that = (FilePermission) p;
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// we get the effective mask. i.e., the "and" of this and that.
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// They must be equal to that.mask for implies to return true.
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return ((this.mask & that.mask) == that.mask) && impliesIgnoreMask(that);
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}
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/**
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* Checks if the Permission's actions are a proper subset of the
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* this object's actions. Returns the effective mask iff the
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* this FilePermission's path also implies that FilePermission's path.
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*
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* @param that the FilePermission to check against.
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* @return the effective mask
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*/
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boolean impliesIgnoreMask(FilePermission that) {
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if (this.directory) {
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if (this.recursive) {
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// make sure that.path is longer then path so
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// something like /foo/- does not imply /foo
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if (that.directory) {
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return (that.cpath.length() >= this.cpath.length()) &&
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that.cpath.startsWith(this.cpath);
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} else {
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return ((that.cpath.length() > this.cpath.length()) &&
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that.cpath.startsWith(this.cpath));
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}
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} else {
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if (that.directory) {
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// if the permission passed in is a directory
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// specification, make sure that a non-recursive
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// permission (i.e., this object) can't imply a recursive
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// permission.
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if (that.recursive)
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return false;
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else
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return (this.cpath.equals(that.cpath));
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} else {
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int last = that.cpath.lastIndexOf(File.separatorChar);
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if (last == -1)
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return false;
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else {
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// this.cpath.equals(that.cpath.substring(0, last+1));
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// Use regionMatches to avoid creating new string
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return (this.cpath.length() == (last + 1)) &&
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this.cpath.regionMatches(0, that.cpath, 0, last+1);
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}
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}
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}
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} else if (that.directory) {
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// if this is NOT recursive/wildcarded,
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// do not let it imply a recursive/wildcarded permission
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return false;
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} else {
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return (this.cpath.equals(that.cpath));
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}
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}
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/**
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* Checks two FilePermission objects for equality. Checks that <i>obj</i> is
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* a FilePermission, and has the same pathname and actions as this object.
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*
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* @param obj the object we are testing for equality with this object.
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* @return <code>true</code> if obj is a FilePermission, and has the same
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* pathname and actions as this FilePermission object,
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* <code>false</code> otherwise.
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*/
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public boolean equals(Object obj) {
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if (obj == this)
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return true;
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if (! (obj instanceof FilePermission))
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return false;
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FilePermission that = (FilePermission) obj;
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return (this.mask == that.mask) &&
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this.cpath.equals(that.cpath) &&
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(this.directory == that.directory) &&
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(this.recursive == that.recursive);
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}
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/**
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* Returns the hash code value for this object.
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*
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* @return a hash code value for this object.
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*/
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public int hashCode() {
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return 0;
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}
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/**
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* Converts an actions String to an actions mask.
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*
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* @param actions the action string.
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* @return the actions mask.
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*/
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private static int getMask(String actions) {
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int mask = NONE;
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// Null action valid?
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if (actions == null) {
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return mask;
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}
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// Use object identity comparison against known-interned strings for
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// performance benefit (these values are used heavily within the JDK).
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if (actions == SecurityConstants.FILE_READ_ACTION) {
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return READ;
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} else if (actions == SecurityConstants.FILE_WRITE_ACTION) {
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return WRITE;
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} else if (actions == SecurityConstants.FILE_EXECUTE_ACTION) {
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return EXECUTE;
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} else if (actions == SecurityConstants.FILE_DELETE_ACTION) {
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return DELETE;
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} else if (actions == SecurityConstants.FILE_READLINK_ACTION) {
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return READLINK;
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}
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char[] a = actions.toCharArray();
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int i = a.length - 1;
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if (i < 0)
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return mask;
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while (i != -1) {
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char c;
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// skip whitespace
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while ((i!=-1) && ((c = a[i]) == ' ' ||
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c == '\r' ||
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c == '\n' ||
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c == '\f' ||
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c == '\t'))
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i--;
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// check for the known strings
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int matchlen;
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if (i >= 3 && (a[i-3] == 'r' || a[i-3] == 'R') &&
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(a[i-2] == 'e' || a[i-2] == 'E') &&
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(a[i-1] == 'a' || a[i-1] == 'A') &&
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(a[i] == 'd' || a[i] == 'D'))
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{
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matchlen = 4;
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mask |= READ;
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} else if (i >= 4 && (a[i-4] == 'w' || a[i-4] == 'W') &&
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(a[i-3] == 'r' || a[i-3] == 'R') &&
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(a[i-2] == 'i' || a[i-2] == 'I') &&
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(a[i-1] == 't' || a[i-1] == 'T') &&
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(a[i] == 'e' || a[i] == 'E'))
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{
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matchlen = 5;
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mask |= WRITE;
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} else if (i >= 6 && (a[i-6] == 'e' || a[i-6] == 'E') &&
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(a[i-5] == 'x' || a[i-5] == 'X') &&
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(a[i-4] == 'e' || a[i-4] == 'E') &&
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(a[i-3] == 'c' || a[i-3] == 'C') &&
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(a[i-2] == 'u' || a[i-2] == 'U') &&
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(a[i-1] == 't' || a[i-1] == 'T') &&
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(a[i] == 'e' || a[i] == 'E'))
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{
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matchlen = 7;
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mask |= EXECUTE;
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} else if (i >= 5 && (a[i-5] == 'd' || a[i-5] == 'D') &&
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(a[i-4] == 'e' || a[i-4] == 'E') &&
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(a[i-3] == 'l' || a[i-3] == 'L') &&
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(a[i-2] == 'e' || a[i-2] == 'E') &&
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(a[i-1] == 't' || a[i-1] == 'T') &&
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(a[i] == 'e' || a[i] == 'E'))
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{
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matchlen = 6;
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mask |= DELETE;
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} else if (i >= 7 && (a[i-7] == 'r' || a[i-7] == 'R') &&
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(a[i-6] == 'e' || a[i-6] == 'E') &&
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(a[i-5] == 'a' || a[i-5] == 'A') &&
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(a[i-4] == 'd' || a[i-4] == 'D') &&
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(a[i-3] == 'l' || a[i-3] == 'L') &&
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(a[i-2] == 'i' || a[i-2] == 'I') &&
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(a[i-1] == 'n' || a[i-1] == 'N') &&
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(a[i] == 'k' || a[i] == 'K'))
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{
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matchlen = 8;
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mask |= READLINK;
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} else {
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// parse error
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throw new IllegalArgumentException(
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"invalid permission: " + actions);
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}
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|
|
// make sure we didn't just match the tail of a word
|
|
// like "ackbarfaccept". Also, skip to the comma.
|
|
boolean seencomma = false;
|
|
while (i >= matchlen && !seencomma) {
|
|
switch(a[i-matchlen]) {
|
|
case ',':
|
|
seencomma = true;
|
|
break;
|
|
case ' ': case '\r': case '\n':
|
|
case '\f': case '\t':
|
|
break;
|
|
default:
|
|
throw new IllegalArgumentException(
|
|
"invalid permission: " + actions);
|
|
}
|
|
i--;
|
|
}
|
|
|
|
// point i at the location of the comma minus one (or -1).
|
|
i -= matchlen;
|
|
}
|
|
|
|
return mask;
|
|
}
|
|
|
|
/**
|
|
* Return the current action mask. Used by the FilePermissionCollection.
|
|
*
|
|
* @return the actions mask.
|
|
*/
|
|
int getMask() {
|
|
return mask;
|
|
}
|
|
|
|
/**
|
|
* Return the canonical string representation of the actions.
|
|
* Always returns present actions in the following order:
|
|
* read, write, execute, delete, readlink.
|
|
*
|
|
* @return the canonical string representation of the actions.
|
|
*/
|
|
private static String getActions(int mask) {
|
|
StringBuilder sb = new StringBuilder();
|
|
boolean comma = false;
|
|
|
|
if ((mask & READ) == READ) {
|
|
comma = true;
|
|
sb.append("read");
|
|
}
|
|
|
|
if ((mask & WRITE) == WRITE) {
|
|
if (comma) sb.append(',');
|
|
else comma = true;
|
|
sb.append("write");
|
|
}
|
|
|
|
if ((mask & EXECUTE) == EXECUTE) {
|
|
if (comma) sb.append(',');
|
|
else comma = true;
|
|
sb.append("execute");
|
|
}
|
|
|
|
if ((mask & DELETE) == DELETE) {
|
|
if (comma) sb.append(',');
|
|
else comma = true;
|
|
sb.append("delete");
|
|
}
|
|
|
|
if ((mask & READLINK) == READLINK) {
|
|
if (comma) sb.append(',');
|
|
else comma = true;
|
|
sb.append("readlink");
|
|
}
|
|
|
|
return sb.toString();
|
|
}
|
|
|
|
/**
|
|
* Returns the "canonical string representation" of the actions.
|
|
* That is, this method always returns present actions in the following order:
|
|
* read, write, execute, delete, readlink. For example, if this FilePermission
|
|
* object allows both write and read actions, a call to <code>getActions</code>
|
|
* will return the string "read,write".
|
|
*
|
|
* @return the canonical string representation of the actions.
|
|
*/
|
|
public String getActions() {
|
|
if (actions == null)
|
|
actions = getActions(this.mask);
|
|
|
|
return actions;
|
|
}
|
|
|
|
/**
|
|
* Returns a new PermissionCollection object for storing FilePermission
|
|
* objects.
|
|
* <p>
|
|
* FilePermission objects must be stored in a manner that allows them
|
|
* to be inserted into the collection in any order, but that also enables the
|
|
* PermissionCollection <code>implies</code>
|
|
* method to be implemented in an efficient (and consistent) manner.
|
|
*
|
|
* <p>For example, if you have two FilePermissions:
|
|
* <OL>
|
|
* <LI> <code>"/tmp/-", "read"</code>
|
|
* <LI> <code>"/tmp/scratch/foo", "write"</code>
|
|
* </OL>
|
|
*
|
|
* <p>and you are calling the <code>implies</code> method with the FilePermission:
|
|
*
|
|
* <pre>
|
|
* "/tmp/scratch/foo", "read,write",
|
|
* </pre>
|
|
*
|
|
* then the <code>implies</code> function must
|
|
* take into account both the "/tmp/-" and "/tmp/scratch/foo"
|
|
* permissions, so the effective permission is "read,write",
|
|
* and <code>implies</code> returns true. The "implies" semantics for
|
|
* FilePermissions are handled properly by the PermissionCollection object
|
|
* returned by this <code>newPermissionCollection</code> method.
|
|
*
|
|
* @return a new PermissionCollection object suitable for storing
|
|
* FilePermissions.
|
|
*/
|
|
public PermissionCollection newPermissionCollection() {
|
|
return new FilePermissionCollection();
|
|
}
|
|
|
|
/**
|
|
* WriteObject is called to save the state of the FilePermission
|
|
* to a stream. The actions are serialized, and the superclass
|
|
* takes care of the name.
|
|
*/
|
|
private void writeObject(ObjectOutputStream s)
|
|
throws IOException
|
|
{
|
|
// Write out the actions. The superclass takes care of the name
|
|
// call getActions to make sure actions field is initialized
|
|
if (actions == null)
|
|
getActions();
|
|
s.defaultWriteObject();
|
|
}
|
|
|
|
/**
|
|
* readObject is called to restore the state of the FilePermission from
|
|
* a stream.
|
|
*/
|
|
private void readObject(ObjectInputStream s)
|
|
throws IOException, ClassNotFoundException
|
|
{
|
|
// Read in the actions, then restore everything else by calling init.
|
|
s.defaultReadObject();
|
|
init(getMask(actions));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* A FilePermissionCollection stores a set of FilePermission permissions.
|
|
* FilePermission 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.
|
|
* For example, if you have two FilePermissions:
|
|
* <OL>
|
|
* <LI> "/tmp/-", "read"
|
|
* <LI> "/tmp/scratch/foo", "write"
|
|
* </OL>
|
|
* And you are calling the implies function with the FilePermission:
|
|
* "/tmp/scratch/foo", "read,write", then the implies function must
|
|
* take into account both the /tmp/- and /tmp/scratch/foo
|
|
* permissions, so the effective permission is "read,write".
|
|
*
|
|
* @see java.security.Permission
|
|
* @see java.security.Permissions
|
|
* @see java.security.PermissionCollection
|
|
*
|
|
*
|
|
* @author Marianne Mueller
|
|
* @author Roland Schemers
|
|
*
|
|
* @serial include
|
|
*
|
|
*/
|
|
|
|
final class FilePermissionCollection extends PermissionCollection
|
|
implements Serializable
|
|
{
|
|
// Not serialized; see serialization section at end of class
|
|
private transient List<Permission> perms;
|
|
|
|
/**
|
|
* Create an empty FilePermissionCollection object.
|
|
*/
|
|
public FilePermissionCollection() {
|
|
perms = new ArrayList<>();
|
|
}
|
|
|
|
/**
|
|
* Adds a permission to the FilePermissionCollection. The key for the hash is
|
|
* permission.path.
|
|
*
|
|
* @param permission the Permission object to add.
|
|
*
|
|
* @exception IllegalArgumentException - if the permission is not a
|
|
* FilePermission
|
|
*
|
|
* @exception SecurityException - if this FilePermissionCollection object
|
|
* has been marked readonly
|
|
*/
|
|
public void add(Permission permission) {
|
|
if (! (permission instanceof FilePermission))
|
|
throw new IllegalArgumentException("invalid permission: "+
|
|
permission);
|
|
if (isReadOnly())
|
|
throw new SecurityException(
|
|
"attempt to add a Permission to a readonly PermissionCollection");
|
|
|
|
synchronized (this) {
|
|
perms.add(permission);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Check and see if this set of permissions implies the permissions
|
|
* expressed in "permission".
|
|
*
|
|
* @param permission the Permission object to compare
|
|
*
|
|
* @return true if "permission" is a proper subset of a permission in
|
|
* the set, false if not.
|
|
*/
|
|
public boolean implies(Permission permission) {
|
|
if (! (permission instanceof FilePermission))
|
|
return false;
|
|
|
|
FilePermission fp = (FilePermission) permission;
|
|
|
|
int desired = fp.getMask();
|
|
int effective = 0;
|
|
int needed = desired;
|
|
|
|
synchronized (this) {
|
|
int len = perms.size();
|
|
for (int i = 0; i < len; i++) {
|
|
FilePermission x = (FilePermission) perms.get(i);
|
|
if (((needed & x.getMask()) != 0) && x.impliesIgnoreMask(fp)) {
|
|
effective |= x.getMask();
|
|
if ((effective & desired) == desired)
|
|
return true;
|
|
needed = (desired ^ effective);
|
|
}
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Returns an enumeration of all the FilePermission objects in the
|
|
* container.
|
|
*
|
|
* @return an enumeration of all the FilePermission objects.
|
|
*/
|
|
public Enumeration<Permission> elements() {
|
|
// Convert Iterator into Enumeration
|
|
synchronized (this) {
|
|
return Collections.enumeration(perms);
|
|
}
|
|
}
|
|
|
|
private static final long serialVersionUID = 2202956749081564585L;
|
|
|
|
// Need to maintain serialization interoperability with earlier releases,
|
|
// which had the serializable field:
|
|
// private Vector permissions;
|
|
|
|
/**
|
|
* @serialField permissions java.util.Vector
|
|
* A list of FilePermission objects.
|
|
*/
|
|
private static final ObjectStreamField[] serialPersistentFields = {
|
|
new ObjectStreamField("permissions", Vector.class),
|
|
};
|
|
|
|
/**
|
|
* @serialData "permissions" field (a Vector containing the FilePermissions).
|
|
*/
|
|
/*
|
|
* Writes the contents of the perms field out as a Vector for
|
|
* serialization compatibility with earlier releases.
|
|
*/
|
|
private void writeObject(ObjectOutputStream out) throws IOException {
|
|
// Don't call out.defaultWriteObject()
|
|
|
|
// Write out Vector
|
|
Vector<Permission> permissions = new Vector<>(perms.size());
|
|
synchronized (this) {
|
|
permissions.addAll(perms);
|
|
}
|
|
|
|
ObjectOutputStream.PutField pfields = out.putFields();
|
|
pfields.put("permissions", permissions);
|
|
out.writeFields();
|
|
}
|
|
|
|
/*
|
|
* Reads in a Vector of FilePermissions and saves them in the perms field.
|
|
*/
|
|
private void readObject(ObjectInputStream in)
|
|
throws IOException, ClassNotFoundException
|
|
{
|
|
// Don't call defaultReadObject()
|
|
|
|
// Read in serialized fields
|
|
ObjectInputStream.GetField gfields = in.readFields();
|
|
|
|
// Get the one we want
|
|
@SuppressWarnings("unchecked")
|
|
Vector<Permission> permissions = (Vector<Permission>)gfields.get("permissions", null);
|
|
perms = new ArrayList<>(permissions.size());
|
|
for (Permission perm : permissions) {
|
|
perms.add(perm);
|
|
}
|
|
}
|
|
}
|