/*

 * Copyright (c) 2018, 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.

 */

// SunJSSE does not support dynamic system properties, no way to re-use

// system properties in samevm/agentvm mode.

/*

 * @test

 * @summary Test jdk.tls.server.protocols with DTLS

 * @run main/othervm -Djdk.tls.server.protocols="DTLSv1.0"

 *      CustomizedDTLSServerDefaultProtocols

 */

import java.security.NoSuchAlgorithmException;

import java.security.Security;

import java.util.Arrays;

import java.util.HashSet;

import java.util.Set;

import javax.net.SocketFactory;

import javax.net.ssl.SSLContext;

import javax.net.ssl.SSLEngine;

import javax.net.ssl.SSLParameters;

import javax.net.ssl.SSLServerSocket;

import javax.net.ssl.SSLServerSocketFactory;

import javax.net.ssl.SSLSocket;

public class CustomizedDTLSServerDefaultProtocols {

    final static String[] supportedProtocols = new String[]{

            "DTLSv1.0", "DTLSv1.2"};

    enum ContextVersion {

        TLS_CV_01("DTLS",

                new String[]{"DTLSv1.0"},

                supportedProtocols),

        TLS_CV_02("DTLSv1.0",

                supportedProtocols,

                new String[]{"DTLSv1.0"}),

        TLS_CV_03("DTLS1.2",

                supportedProtocols,

                supportedProtocols);

        final String contextVersion;

        final String[] serverEnabledProtocols;

        final String[] clientEnabledProtocols;

        ContextVersion(String contextVersion, String[] serverEnabledProtocols,

                String[] clientEnabledProtocols) {

            this.contextVersion = contextVersion;

            this.serverEnabledProtocols = serverEnabledProtocols;

            this.clientEnabledProtocols = clientEnabledProtocols;

        }

    }

    private static boolean checkProtocols(String[] target, String[] expected) {

        boolean success = true;

        if (target.length == 0) {

            System.out.println("\tError: No protocols");

            success = false;

        }

        if (!protocolEquals(target, expected)) {

            System.out.println("\tError: Expected to get protocols " +

                    Arrays.toString(expected));

            success = false;

        }

        System.out.println("\t  Protocols found " + Arrays.toString(target));

        return success;

    }

    private static boolean protocolEquals(

            String[] actualProtocols,

            String[] expectedProtocols) {

        if (actualProtocols.length != expectedProtocols.length) {

            return false;

        }

        Set<String> set = new HashSet<>(Arrays.asList(expectedProtocols));

        for (String actual : actualProtocols) {

            if (set.add(actual)) {

                return false;

            }

        }

        return true;

    }

    private static boolean checkCipherSuites(String[] target) {

        boolean success = true;

        if (target.length == 0) {

            System.out.println("\tError: No cipher suites");

            success = false;

        }

        return success;

    }

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

        // reset the security property to make sure that the algorithms

        // and keys used in this test are not disabled.

        Security.setProperty("jdk.tls.disabledAlgorithms", "");

        System.out.println("jdk.tls.client.protocols = " +

                System.getProperty("jdk.tls.client.protocols"));

        System.out.println("jdk.tls.server.protocols = "+

                System.getProperty("jdk.tls.server.protocols"));

        Test();

    }

    static void Test() throws Exception {

        boolean failed = false;

        SSLContext context;

        for (ContextVersion cv : ContextVersion.values()) {

            System.out.println("Checking SSLContext of " + cv.contextVersion);

            try {

                context = SSLContext.getInstance(cv.contextVersion);

            } catch (NoSuchAlgorithmException e) {

                if (cv.contextVersion.compareToIgnoreCase("DTLS1.2") == 0) {

                    System.out.println("Exception expected: " + e.getMessage());

                    continue;

                }

                throw e;

            }

            // Default SSLContext is initialized automatically.

            if (!cv.contextVersion.equals("Default")) {

                // Use default TK, KM and random.

                context.init(null, null, null);

            }

            //

            // Check SSLContext

            //

            // Check default SSLParameters of SSLContext

            System.out.println("\tChecking default SSLParameters");

            SSLParameters parameters = context.getDefaultSSLParameters();

            String[] protocols = parameters.getProtocols();

            failed |= !checkProtocols(protocols, cv.clientEnabledProtocols);

            String[] ciphers = parameters.getCipherSuites();

            failed |= !checkCipherSuites(ciphers);

            // Check supported SSLParameters of SSLContext

            System.out.println("\tChecking supported SSLParameters");

            parameters = context.getSupportedSSLParameters();

            protocols = parameters.getProtocols();

            failed |= !checkProtocols(protocols, supportedProtocols);

            ciphers = parameters.getCipherSuites();

            failed |= !checkCipherSuites(ciphers);

            //

            // Check SSLEngine

            //

            // Check SSLParameters of SSLEngine

            System.out.println();

            System.out.println("\tChecking SSLEngine of this SSLContext");

            System.out.println("\tChecking SSLEngine.getSSLParameters()");

            SSLEngine engine = context.createSSLEngine();

            engine.setUseClientMode(true);

            parameters = engine.getSSLParameters();

            protocols = parameters.getProtocols();

            failed |= !checkProtocols(protocols, cv.clientEnabledProtocols);

            ciphers = parameters.getCipherSuites();

            failed |= !checkCipherSuites(ciphers);

            System.out.println("\tChecking SSLEngine.getEnabledProtocols()");

            protocols = engine.getEnabledProtocols();

            failed |= !checkProtocols(protocols, cv.clientEnabledProtocols);

            System.out.println("\tChecking SSLEngine.getEnabledCipherSuites()");

            ciphers = engine.getEnabledCipherSuites();

            failed |= !checkCipherSuites(ciphers);

            System.out.println("\tChecking SSLEngine.getSupportedProtocols()");

            protocols = engine.getSupportedProtocols();

            failed |= !checkProtocols(protocols, supportedProtocols);

            System.out.println(

                    "\tChecking SSLEngine.getSupportedCipherSuites()");

            ciphers = engine.getSupportedCipherSuites();

            failed |= !checkCipherSuites(ciphers);

            //

            // Check SSLSocket

            //

            // Check SSLParameters of SSLSocket

            System.out.println();

            System.out.println("\tChecking SSLSocket of this SSLContext");

            System.out.println("\tChecking SSLSocket.getSSLParameters()");

            SocketFactory fac = context.getSocketFactory();

            SSLSocket socket = (SSLSocket) fac.createSocket();

            parameters = socket.getSSLParameters();

            protocols = parameters.getProtocols();

            failed |= !checkProtocols(protocols, cv.clientEnabledProtocols);

            ciphers = parameters.getCipherSuites();

            failed |= !checkCipherSuites(ciphers);

            System.out.println("\tChecking SSLSocket.getEnabledProtocols()");

            protocols = socket.getEnabledProtocols();

            failed |= !checkProtocols(protocols, cv.clientEnabledProtocols);

            System.out.println("\tChecking SSLSocket.getEnabledCipherSuites()");

            ciphers = socket.getEnabledCipherSuites();

            failed |= !checkCipherSuites(ciphers);

            System.out.println("\tChecking SSLSocket.getSupportedProtocols()");

            protocols = socket.getSupportedProtocols();

            failed |= !checkProtocols(protocols, supportedProtocols);

            System.out.println(

                    "\tChecking SSLSocket.getSupportedCipherSuites()");

            ciphers = socket.getSupportedCipherSuites();

            failed |= !checkCipherSuites(ciphers);

            //

            // Check SSLServerSocket

            //

            // Check SSLParameters of SSLServerSocket

            System.out.println();

            System.out.println("\tChecking SSLServerSocket of this SSLContext");

            System.out.println("\tChecking SSLServerSocket.getSSLParameters()");

            SSLServerSocketFactory sf = context.getServerSocketFactory();

            SSLServerSocket ssocket = (SSLServerSocket) sf.createServerSocket();

            parameters = ssocket.getSSLParameters();

            protocols = parameters.getProtocols();

            failed |= !checkProtocols(protocols, cv.serverEnabledProtocols);

            ciphers = parameters.getCipherSuites();

            failed |= !checkCipherSuites(ciphers);

            System.out.println("\tChecking SSLEngine.getEnabledProtocols()");

            protocols = ssocket.getEnabledProtocols();

            failed |= !checkProtocols(protocols, cv.serverEnabledProtocols);

            System.out.println("\tChecking SSLEngine.getEnabledCipherSuites()");

            ciphers = ssocket.getEnabledCipherSuites();

            failed |= !checkCipherSuites(ciphers);

            System.out.println("\tChecking SSLEngine.getSupportedProtocols()");

            protocols = ssocket.getSupportedProtocols();

            failed |= !checkProtocols(protocols, supportedProtocols);

            System.out.println(

                    "\tChecking SSLEngine.getSupportedCipherSuites()");

            ciphers = ssocket.getSupportedCipherSuites();

            failed |= !checkCipherSuites(ciphers);

            if (failed) {

                throw new Exception("Run into problems, see log for more details");

            } else {

                System.out.println("\t... Success");

            }

        }

    }

}