001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *   http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 *
017 */
018
019package org.apache.commons.net.util;
020
021import java.lang.reflect.InvocationTargetException;
022import java.lang.reflect.Method;
023
024import javax.net.ssl.SSLSocket;
025
026/**
027 * General utilities for SSLSocket.
028 * @since 3.4
029 */
030public class SSLSocketUtils {
031    private SSLSocketUtils() {
032        // Not instantiable
033    }
034
035    /**
036     * Enable the HTTPS endpoint identification algorithm on an SSLSocket.
037     * @param socket the SSL socket
038     * @return {@code true} on success (this is only supported on Java 1.7+)
039     */
040    public static boolean enableEndpointNameVerification(final SSLSocket socket) {
041        try {
042            final Class<?> cls = Class.forName("javax.net.ssl.SSLParameters");
043            final Method setEndpointIdentificationAlgorithm = cls
044                    .getDeclaredMethod("setEndpointIdentificationAlgorithm", String.class);
045            final Method getSSLParameters = SSLSocket.class.getDeclaredMethod("getSSLParameters");
046            final Method setSSLParameters = SSLSocket.class.getDeclaredMethod("setSSLParameters", cls);
047            if (setEndpointIdentificationAlgorithm != null && getSSLParameters != null && setSSLParameters != null) {
048                final Object sslParams = getSSLParameters.invoke(socket);
049                if (sslParams != null) {
050                    setEndpointIdentificationAlgorithm.invoke(sslParams, "HTTPS");
051                    setSSLParameters.invoke(socket, sslParams);
052                    return true;
053                }
054            }
055        } catch (final SecurityException e) { // Ignored
056        } catch (final ClassNotFoundException e) { // Ignored
057        } catch (final NoSuchMethodException e) { // Ignored
058        } catch (final IllegalArgumentException e) { // Ignored
059        } catch (final IllegalAccessException e) { // Ignored
060        } catch (final InvocationTargetException e) { // Ignored
061        }
062        return false;
063    }
064}