legado/modules/rhino1.7.3/src/main/java/com/script/rhino/RhinoClassShutter.kt

/*
 * Copyright (c) 2005, 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.script.rhino

import org.mozilla.javascript.ClassShutter

/**
 * This class prevents script access to certain sensitive classes.
 * Note that this class checks over and above SecurityManager. i.e., although
 * a SecurityManager would pass, class shutter may still prevent access.
 *
 * @author A. Sundararajan
 * @since 1.6
 */
object RhinoClassShutter : ClassShutter {

    private val protectedClasses by lazy {
        hashSetOf(
            "dalvik.system",
            "java.lang.Class",
            "java.lang.ClassLoader",
            "java.net.URLClassLoader",
            "cn.hutool.core.lang.JarClassLoader",
            "org.mozilla.javascript.DefiningClassLoader",
            "java.lang.Runtime",
            "java.io.File",
            "java.security.AccessController",
            "java.nio.file.Paths",
            "java.nio.file.Files",
            "io.legado.app.data.AppDatabaseKt",
            "io.legado.app.utils.ContextExtensionsKt",
            "android.content.Intent",
            "androidx.core.content.FileProvider",
            "android.provider.Settings",
            "androidx.sqlite.db",
            "splitties.init.AppCtxKt",
            "android.app.ActivityThread",
            "android.app.AppGlobals"
        )
    }

    override fun visibleToScripts(fullClassName: String): Boolean {
        if (!protectedClasses.contains(fullClassName)) {
            var className = fullClassName
            while (className.contains(".")) {
                className = className.substringBeforeLast(".")
                if (protectedClasses.contains(className)) {
                    return false
                }
            }
            return true
        }
        return false
    }

}