2 * ========================LICENSE_START=================================
5 * Copyright (C) 2019 AT&T Intellectual Property
6 * Modifications Copyright (C) 2020 Nordix Foundation
8 * Licensed under the Apache License, Version 2.0 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
12 * http://www.apache.org/licenses/LICENSE-2.0
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 * ========================LICENSE_END===================================
22 package org.oransc.ric.portal.dashboard.util;
24 import java.security.KeyManagementException;
25 import java.security.NoSuchAlgorithmException;
26 import java.security.cert.X509Certificate;
28 import javax.net.ssl.HostnameVerifier;
29 import javax.net.ssl.HttpsURLConnection;
30 import javax.net.ssl.SSLContext;
31 import javax.net.ssl.TrustManager;
32 import javax.net.ssl.X509TrustManager;
35 * Disables and enables certificate and host-name checking in
36 * HttpsURLConnection, the default JVM implementation of the HTTPS/TLS protocol.
37 * Has no effect on implementations such as Apache Http Client, Ok Http.
39 * https://stackoverflow.com/questions/23504819/how-to-disable-ssl-certificate-checking-with-spring-resttemplate/58291331#58291331
41 public final class HttpsURLConnectionUtils {
43 private static final HostnameVerifier jvmHostnameVerifier = HttpsURLConnection.getDefaultHostnameVerifier();
45 private static final HostnameVerifier trivialHostnameVerifier =
46 (hostname, sslSession) -> hostname.equalsIgnoreCase(sslSession.getPeerHost());
48 private static final TrustManager[] UNQUESTIONING_TRUST_MANAGER = new TrustManager[] {new X509TrustManager() {
50 public java.security.cert.X509Certificate[] getAcceptedIssuers() {
51 return new java.security.cert.X509Certificate[0];
55 public void checkClientTrusted(X509Certificate[] certs, String authType) {
60 public void checkServerTrusted(X509Certificate[] certs, String authType) {
65 public static void turnOffSslChecking() throws NoSuchAlgorithmException, KeyManagementException {
66 HttpsURLConnection.setDefaultHostnameVerifier(trivialHostnameVerifier);
67 // Install the all-trusting trust manager
68 SSLContext sc = SSLContext.getInstance("TLS");
69 sc.init(null, UNQUESTIONING_TRUST_MANAGER, null);
70 HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
73 public static void turnOnSslChecking() throws KeyManagementException, NoSuchAlgorithmException {
74 HttpsURLConnection.setDefaultHostnameVerifier(jvmHostnameVerifier);
75 // Return it to the initial state (discovered by reflection, now hardcoded)
76 SSLContext sc = SSLContext.getInstance("TLS");
77 sc.init(null, null, null);
78 HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
81 private HttpsURLConnectionUtils() {
82 throw new UnsupportedOperationException("Do not instantiate libraries.");