1 /*
2 * ====================================================================
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 * ====================================================================
20 *
21 * This software consists of voluntary contributions made by many
22 * individuals on behalf of the Apache Software Foundation. For more
23 * information on the Apache Software Foundation, please see
24 * <http://www.apache.org/>.
25 *
26 */
27
28 package org.apache.hc.client5.http.ssl;
29
30 import java.security.AccessController;
31 import java.security.PrivilegedAction;
32
33 import javax.net.ssl.HostnameVerifier;
34
35 import org.apache.hc.client5.http.psl.PublicSuffixMatcherLoader;
36 import org.apache.hc.core5.util.TextUtils;
37
38 /**
39 * HTTPS configuration support methods.
40 *
41 * @since 5.0
42 */
43 public final class HttpsSupport {
44
45 private static String[] split(final String s) {
46 if (TextUtils.isBlank(s)) {
47 return null;
48 }
49 return s.split(" *, *");
50 }
51
52 private static String getProperty(final String key) {
53 return AccessController.doPrivileged((PrivilegedAction<String>) () -> System.getProperty(key));
54 }
55
56 public static String[] getSystemProtocols() {
57 return split(getProperty("https.protocols"));
58 }
59
60 public static String[] getSystemCipherSuits() {
61 return split(getProperty("https.cipherSuites"));
62 }
63
64 public static HostnameVerifier getDefaultHostnameVerifier() {
65 return new DefaultHostnameVerifier(PublicSuffixMatcherLoader.getDefault());
66 }
67
68 }