/*

 * Copyright (c) 2016, 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

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package sun.security.util;

import sun.security.action.GetPropertyAction;

import java.io.FilePermission;

import java.security.Permission;

import jdk.internal.misc.SharedSecrets;

/**

 * Take care of FilePermission compatibility after JDK-8164705.

 */

public class FilePermCompat {

    /**

     * New behavior? Keep compatibility? Both default true.

     */

    public static final boolean nb;

    public static final boolean compat;

    static {

        String flag = GetPropertyAction.privilegedGetProperty(

                "jdk.io.permissionsUseCanonicalPath", "false");

        switch (flag) {

            case "true":

                nb = false;

                compat = false;

                break;

            case "false":

                nb = true;

                compat = true;

                break;

            default:

                throw new RuntimeException(

                        "Invalid jdk.io.permissionsUseCanonicalPath: " + flag);

        }

    }

    public static Permission newPermPlusAltPath(Permission input) {

        if (compat && input instanceof FilePermission) {

            return SharedSecrets.getJavaIOFilePermissionAccess()

                    .newPermPlusAltPath((FilePermission) input);

        }

        return input;

    }

    public static Permission newPermUsingAltPath(Permission input) {

        if (input instanceof FilePermission) {

            return SharedSecrets.getJavaIOFilePermissionAccess()

                    .newPermUsingAltPath((FilePermission) input);

        }

        return null;

    }

}