com.relayrides.pushy.apns.SslHandlerUtil.java Source code

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Here is the source code for com.relayrides.pushy.apns.SslHandlerUtil.java

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/* Copyright (c) 2013 RelayRides
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

package com.relayrides.pushy.apns;

import io.netty.handler.ssl.SslHandler;

import java.security.KeyManagementException;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.Security;
import java.security.UnrecoverableKeyException;

import javax.net.ssl.KeyManagerFactory;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLEngine;
import javax.net.ssl.TrustManagerFactory;

/**
 * A utility class that can create SshHandlers prepared to communicate with an APNs server.
 *
 * @author <a href="mailto:jon@relayrides.com">Jon Chambers</a>
 */
class SslHandlerUtil {

    private static final String PROTOCOL = "TLS";
    private static final String DEFAULT_ALGORITHM = "SunX509";

    protected SslHandlerUtil() {
    }

    protected static SslHandler createSslHandler(final KeyStore keyStore, final char[] keyStorePassword)
            throws KeyManagementException, NoSuchAlgorithmException, KeyStoreException, UnrecoverableKeyException {
        String algorithm = Security.getProperty("ssl.KeyManagerFactory.algorithm");

        if (algorithm == null) {
            algorithm = DEFAULT_ALGORITHM;
        }

        final TrustManagerFactory trustManagerFactory = TrustManagerFactory.getInstance(algorithm);
        trustManagerFactory.init((KeyStore) null);

        final KeyManagerFactory keyManagerFactory = KeyManagerFactory.getInstance(algorithm);
        keyManagerFactory.init(keyStore, keyStorePassword);

        final SSLContext sslContext = SSLContext.getInstance(PROTOCOL);
        sslContext.init(keyManagerFactory.getKeyManagers(), trustManagerFactory.getTrustManagers(), null);

        final SSLEngine sslEngine = sslContext.createSSLEngine();
        sslEngine.setUseClientMode(true);

        return new SslHandler(sslEngine);
    }
}