1 /*
2 * Copyright 2021 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.handler.ssl;
17
18 import javax.net.ssl.SSLEngine;
19
20 /**
21 * Contains methods that can be used to detect if BouncyCastle is usable.
22 */
23 final class BouncyCastle {
24
25 private static final boolean BOUNCY_CASTLE_ON_CLASSPATH;
26
27 static {
28 boolean bcOnClasspath = false;
29 try {
30 Class.forName("org.bouncycastle.jsse.provider.BouncyCastleJsseProvider");
31 bcOnClasspath = true;
32 } catch (Throwable ignore) {
33 // ignore
34 }
35 BOUNCY_CASTLE_ON_CLASSPATH = bcOnClasspath;
36 }
37
38 /**
39 * Indicates whether or not BouncyCastle is available on the current system.
40 */
41 static boolean isAvailable() {
42 return BOUNCY_CASTLE_ON_CLASSPATH;
43 }
44
45 /**
46 * Indicates whether or not BouncyCastle is the underlying SSLEngine.
47 */
48 static boolean isInUse(SSLEngine engine) {
49 return engine.getClass().getPackage().getName().startsWith("org.bouncycastle.jsse.provider");
50 }
51
52 private BouncyCastle() {
53 }
54 }