1 /*
2 * Copyright 2022 The Netty Project
3 *
4 * The Netty Project licenses this file to you under the Apache License,
5 * version 2.0 (the "License"); you may not use this file except in compliance
6 * with the License. You may obtain a copy of the License at:
7 *
8 * https://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13 * License for the specific language governing permissions and limitations
14 * under the License.
15 */
16 package io.netty.example.util;
17
18 import io.netty.handler.ssl.SslContext;
19 import io.netty.handler.ssl.SslContextBuilder;
20 import io.netty.handler.ssl.util.SelfSignedCertificate;
21
22 import javax.net.ssl.SSLException;
23 import java.security.cert.CertificateException;
24
25 /**
26 * Some useful methods for server side.
27 */
28 public final class ServerUtil {
29
30 private static final boolean SSL = System.getProperty("ssl") != null;
31
32 private ServerUtil() {
33 }
34
35 public static SslContext buildSslContext() throws CertificateException, SSLException {
36 if (!SSL) {
37 return null;
38 }
39 SelfSignedCertificate ssc = new SelfSignedCertificate();
40 return SslContextBuilder
41 .forServer(ssc.certificate(), ssc.privateKey())
42 .build();
43 }
44 }