BAEL-4858] Trusting all certificates using OkHttp (#11284)

* Trusting all certificates using OkHttp

* refactor

Co-authored-by: tienvn4 <tienvn4@ghtk.co>

libraries-http-2/src/main/java/com/baeldung/okhttp/ssl/TrustAllCertsClient.java

@@ -0,0 +1,46 @@
+package com.baeldung.okhttp.ssl;
+
+import okhttp3.OkHttpClient;
+import okhttp3.Request;
+
+import javax.net.ssl.SSLContext;
+import javax.net.ssl.TrustManager;
+import javax.net.ssl.X509TrustManager;
+import java.io.IOException;
+import java.security.KeyManagementException;
+import java.security.NoSuchAlgorithmException;
+
+public class TrustAllCertsClient {
+
+    public static OkHttpClient getTrustAllCertsClient() throws NoSuchAlgorithmException, KeyManagementException {
+        TrustManager[] trustAllCerts = new TrustManager[]{
+            new X509TrustManager() {
+                @Override
+                public void checkClientTrusted(java.security.cert.X509Certificate[] chain, String authType) {
+                }
+
+                @Override
+                public void checkServerTrusted(java.security.cert.X509Certificate[] chain, String authType) {
+                }
+
+                @Override
+                public java.security.cert.X509Certificate[] getAcceptedIssuers() {
+                    return new java.security.cert.X509Certificate[]{};
+                }
+            }
+        };
+
+        SSLContext sslContext = SSLContext.getInstance("SSL");
+        sslContext.init(null, trustAllCerts, new java.security.SecureRandom());
+
+        OkHttpClient.Builder newBuilder = new OkHttpClient.Builder();
+        newBuilder.sslSocketFactory(sslContext.getSocketFactory(), (X509TrustManager) trustAllCerts[0]);
+        newBuilder.hostnameVerifier((hostname, session) -> true);
+        return newBuilder.build();
+    }
+
+    public static void main(String[] args) throws NoSuchAlgorithmException, KeyManagementException, IOException {
+        OkHttpClient newClient = getTrustAllCertsClient();
+        newClient.newCall(new Request.Builder().url("https://expired.badssl.com/").build()).execute();
+    }
+}