/*

 * Copyright (c) 2014, 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.

 *

 * 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.

 */

/*

 * @test

 * @bug 8047031

 * @summary SocketPermission tests for legacy socket types

 * @library /test/lib

 * @run testng/othervm SocketPermissionTest

 */

import java.io.IOException;

import java.net.DatagramPacket;

import java.net.DatagramSocket;

import java.net.InetAddress;

import java.net.MulticastSocket;

import java.net.NetworkInterface;

import java.net.ServerSocket;

import java.net.Socket;

import java.net.SocketPermission;

import java.security.AccessControlContext;

import java.security.AccessController;

import java.security.CodeSource;

import java.security.Permission;

import java.security.PermissionCollection;

import java.security.Permissions;

import java.security.Policy;

import java.security.PrivilegedExceptionAction;

import java.security.ProtectionDomain;

import java.util.Optional;

import org.testng.annotations.BeforeMethod;

import org.testng.annotations.Test;

import static org.testng.Assert.*;

import static jdk.test.lib.NetworkConfiguration.probe;

import static java.nio.charset.StandardCharsets.UTF_8;

public class SocketPermissionTest {

    @BeforeMethod

    public void setupSecurityManager() throws Exception {

        // All permissions, a specific ACC will be used to when testing

        // with a reduced permission set.

        Policy.setPolicy(new Policy() {

             final PermissionCollection perms = new Permissions();

             { perms.add(new java.security.AllPermission()); }

             public PermissionCollection getPermissions(ProtectionDomain domain) {

                 return perms;

             }

             public PermissionCollection getPermissions(CodeSource codesource) {

                 return perms;

             }

             public boolean implies(ProtectionDomain domain, Permission perm) {

                 return perms.implies(perm);

             }

        } );

        System.setSecurityManager(new SecurityManager());

    }

    static final AccessControlContext RESTRICTED_ACC = getAccessControlContext();

    @Test

    public void connectSocketTest() throws Exception {

        try (ServerSocket ss = new ServerSocket(0)) {

            int port = ss.getLocalPort();

            String addr = "localhost:" + port;

            AccessControlContext acc = getAccessControlContext(

                    new SocketPermission(addr, "listen,connect,resolve"));

            // Positive

            AccessController.doPrivileged((PrivilegedExceptionAction<Void>) () -> {

                try (Socket client = new Socket(InetAddress.getLocalHost(), port)) {

                }

                return null;

            }, acc);

            //Negative

            try {

                AccessController.doPrivileged((PrivilegedExceptionAction<Void>) () -> {

                    Socket client = new Socket(InetAddress.getLocalHost(), port);

                    fail("Expected SecurityException");

                    return null;

                }, RESTRICTED_ACC);

            } catch (SecurityException expected) { }

        }

    }

    @Test

    public void connectDatagramSocketTest() throws Exception {

        byte[] msg = "Hello".getBytes(UTF_8);

        InetAddress lh = InetAddress.getLocalHost();

        try (DatagramSocket ds = new DatagramSocket(0)) {

            int port = ds.getLocalPort();

            String addr = lh.getHostAddress() + ":" + port;

            AccessControlContext acc = getAccessControlContext(

                    new SocketPermission(addr, "connect,resolve"));

            // Positive

            AccessController.doPrivileged((PrivilegedExceptionAction<Void>) () -> {

                DatagramPacket dp = new DatagramPacket(msg, msg.length, lh, port);

                ds.send(dp);

                return null;

            }, acc);

            // Negative

            try {

                AccessController.doPrivileged((PrivilegedExceptionAction<Void>) () -> {

                    DatagramPacket dp = new DatagramPacket(msg, msg.length, lh, port);

                    ds.send(dp);

                    fail("Expected SecurityException");

                    return null;

                }, RESTRICTED_ACC);

            } catch (SecurityException expected) { }

        }

    }

    @Test

    public void acceptServerSocketTest() throws Exception {

        try (ServerSocket ss = new ServerSocket(0)) {

            int port = ss.getLocalPort();

            String addr = "localhost:" + port;

            AccessControlContext acc = getAccessControlContext(

                    new SocketPermission(addr, "listen,connect,resolve"),

                    new SocketPermission("localhost:1024-", "accept"));

            // Positive

            AccessController.doPrivileged((PrivilegedExceptionAction<Void>) () -> {

                InetAddress me = InetAddress.getLocalHost();

                try (Socket client = new Socket(me, port)) {

                    ss.accept();

                }

                return null;

            }, acc);

            // Negative

            try {

                AccessController.doPrivileged((PrivilegedExceptionAction<Void>) () -> {

                    InetAddress me = InetAddress.getLocalHost();

                    try (Socket client = new Socket(me, port)) {

                        ss.accept();

                    }

                    fail("Expected SecurityException");

                    return null;

                }, RESTRICTED_ACC);

            } catch (SecurityException expected) { }

        }

    }

    @Test

    public void sendDatagramPacketTest() throws Exception {

        byte[] msg = "Hello".getBytes(UTF_8);

        InetAddress group = InetAddress.getByName("229.227.226.221");

        try (DatagramSocket ds = new DatagramSocket(0)) {

            int port = ds.getLocalPort();

            String addr = "localhost:" + port;

            //test for SocketPermission "229.227.226.221", "connect,accept"

            AccessControlContext acc = getAccessControlContext(

                    new SocketPermission(addr, "listen,resolve"),

                    new SocketPermission("229.227.226.221", "connect,accept"));

            // Positive

            AccessController.doPrivileged((PrivilegedExceptionAction<Void>) () -> {

                DatagramPacket hi = new DatagramPacket(msg, msg.length, group, port);

                ds.send(hi);

                return null;

            }, acc);

            // Negative

            try {

                AccessController.doPrivileged((PrivilegedExceptionAction<Void>) () -> {

                    DatagramPacket hi = new DatagramPacket(msg, msg.length, group, port);

                    ds.send(hi);

                    fail("Expected SecurityException");

                    return null;

                }, RESTRICTED_ACC);

            } catch (SecurityException expected) { }

        }

    }

    @Test

    public void joinGroupMulticastTest() throws Exception {

        InetAddress group = InetAddress.getByName("229.227.226.221");

        try (MulticastSocket s = new MulticastSocket(0)) {

            int port = s.getLocalPort();

            String addr = "localhost:" + port;

            AccessControlContext acc = getAccessControlContext(

                    new SocketPermission(addr, "listen,resolve"),

                    new SocketPermission("229.227.226.221", "connect,accept"));

            // Positive ( requires a functional network interface )

            Optional<NetworkInterface> onif = probe().ip4MulticastInterfaces().findFirst();

            if (!onif.isPresent()) {

                s.setNetworkInterface(onif.get());

                AccessController.doPrivileged((PrivilegedExceptionAction<Void>) () -> {

                    s.joinGroup(group);

                    s.leaveGroup(group);

                    return null;

                }, acc);

            }

            // Negative

            try {

                AccessController.doPrivileged((PrivilegedExceptionAction<Void>) () -> {

                    s.joinGroup(group);

                    s.leaveGroup(group);

                    fail("Expected SecurityException");

                    return null;

                }, RESTRICTED_ACC);

            } catch (SecurityException expected) { }

        }

    }

    @Test

    public void listenDatagramSocketTest() throws Exception {

        // the hardcoded port number doesn't really matter since we expect the

        // security permission to be checked before the underlying operation.

        int port = 8899;

        String addr = "localhost:" + port;

        AccessControlContext acc = getAccessControlContext(

                new SocketPermission(addr, "listen"));

        // Positive

        AccessController.doPrivileged((PrivilegedExceptionAction<Void>) () -> {

            try (DatagramSocket ds = new DatagramSocket(port)) { }

            catch (IOException intermittentlyExpected) { /* ignore */ }

            return null;

        }, acc);

        // Negative

        try {

            AccessController.doPrivileged((PrivilegedExceptionAction<Void>) () -> {

                try (DatagramSocket ds = new DatagramSocket(port)) { }

                catch (IOException intermittentlyExpected) { /* ignore */ }

                fail("Expected SecurityException");

                return null;

            }, RESTRICTED_ACC);

        } catch (SecurityException expected) { }

    }

    @Test

    public void listenMulticastSocketTest() throws Exception {

        // the hardcoded port number doesn't really matter since we expect the

        // security permission to be checked before the underlying operation.

        int port = 8899;

        String addr = "localhost:" + port;

        AccessControlContext acc = getAccessControlContext(

                new SocketPermission(addr, "listen"));

        // Positive

        AccessController.doPrivileged((PrivilegedExceptionAction<Void>) () -> {

            try (MulticastSocket ms = new MulticastSocket(port)) { }

            catch (IOException intermittentlyExpected) { /* ignore */ }

            return null;

        }, acc);

        // Negative

        try {

            AccessController.doPrivileged((PrivilegedExceptionAction<Void>) () -> {

                try (MulticastSocket ms = new MulticastSocket(port)) { }

                catch (IOException intermittentlyExpected) { /* ignore */ }

                fail("Expected SecurityException");

                return null;

            }, RESTRICTED_ACC);

        } catch (SecurityException expected) { }

    }

    @Test

    public void listenServerSocketTest() throws Exception {

        // the hardcoded port number doesn't really matter since we expect the

        // security permission to be checked before the underlying operation.

        int port = 8899;

        String addr = "localhost:" + port;

        AccessControlContext acc = getAccessControlContext(

                new SocketPermission(addr, "listen"));

        // Positive

        AccessController.doPrivileged((PrivilegedExceptionAction<Void>) () -> {

            try (ServerSocket ss = new ServerSocket(port)) { }

            catch (IOException intermittentlyExpected) { /* ignore */ }

            return null;

        }, acc);

        // Negative

        try {

            AccessController.doPrivileged((PrivilegedExceptionAction<Void>) () -> {

                try (ServerSocket ss = new ServerSocket(port)) { }

                catch (IOException intermittentlyExpected) { /* ignore */ }

                fail("Expected SecurityException");

                return null;

            }, RESTRICTED_ACC);

        } catch (SecurityException expected) { }

    }

    private static AccessControlContext getAccessControlContext(Permission... ps) {

        Permissions perms = new Permissions();

        for (Permission p : ps) {

            perms.add(p);

        }

        /*

         *Create an AccessControlContext that consist a single protection domain

         * with only the permissions calculated above

         */

        ProtectionDomain pd = new ProtectionDomain(null, perms);

        return new AccessControlContext(new ProtectionDomain[]{pd});

    }

    // Standalone entry point for running with, possibly older, JDKs.

    public static void main(String[] args) throws Throwable {

        SocketPermissionTest test = new SocketPermissionTest();

        test.setupSecurityManager();

        for (java.lang.reflect.Method m : SocketPermissionTest.class.getDeclaredMethods()) {

            if (m.getAnnotation(Test.class) != null) {

                System.out.println("Invoking " + m.getName());

                m.invoke(test);

            }

        }

    }

}