com.allstate.client.ssl.SSLUtils.java Source code

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Here is the source code for com.allstate.client.ssl.SSLUtils.java

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/**
 * Copyright (c) 2012-2013 Reficio (TM) - Reestablish your software!. All Rights Reserved.
 *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.allstate.client.ssl;

import org.apache.http.conn.ssl.SSLSocketFactory;
import org.apache.http.conn.ssl.X509HostnameVerifier;

import javax.net.ssl.*;
import java.security.*;
import java.util.ArrayList;
import java.util.List;

import com.allstate.client.core.Security;

public class SSLUtils {

    public static X509TrustManager getTrustManager(KeyStore trustStore)
            throws NoSuchAlgorithmException, KeyStoreException {
        TrustManagerFactory trustManagerFactory = TrustManagerFactory
                .getInstance(TrustManagerFactory.getDefaultAlgorithm());
        trustManagerFactory.init(trustStore);
        return (X509TrustManager) trustManagerFactory.getTrustManagers()[0];
    }

    public static X509KeyManager getKeyManager(KeyStore keyStore, char[] keyStorePassword)
            throws NoSuchAlgorithmException, KeyStoreException, UnrecoverableKeyException {
        KeyManagerFactory keyManagerFactory = KeyManagerFactory
                .getInstance(KeyManagerFactory.getDefaultAlgorithm());
        keyManagerFactory.init(keyStore, keyStorePassword);
        return (X509KeyManager) keyManagerFactory.getKeyManagers()[0];
    }

    public static X509TrustManager getMultiTrustManager(X509TrustManager... managers) {
        List<X509TrustManager> managersList = new ArrayList<X509TrustManager>();
        for (X509TrustManager manager : managers) {
            managersList.add(manager);
        }
        return new MultiX509TrustManager(managersList);
    }

    public static SSLSocketFactory getMergedSocketFactory(Security securityOne, Security securityTwo)
            throws GeneralSecurityException {
        X509KeyManager keyManagerOne = getKeyManager(securityOne.getKeyStore(), securityOne.getKeyStorePassword());
        X509KeyManager keyManagerTwo = getKeyManager(securityTwo.getKeyStore(), securityTwo.getKeyStorePassword());

        X509TrustManager trustManager = getMultiTrustManager(getTrustManager(securityOne.getTrustStore()),
                getTrustManager(securityTwo.getTrustStore()));

        SSLContext context = SSLContext.getInstance(securityOne.getSslContextProtocol());
        boolean strictHostVerification = securityOne.isStrictHostVerification()
                && securityTwo.isStrictHostVerification();

        context.init(new KeyManager[] { keyManagerOne, keyManagerTwo }, new TrustManager[] { trustManager },
                new SecureRandom());
        X509HostnameVerifier verifier = strictHostVerification ? SSLSocketFactory.STRICT_HOSTNAME_VERIFIER
                : SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER;
        return new SSLSocketFactory(context, verifier);
    }

    public static SSLSocketFactory getFactory(Security security) throws GeneralSecurityException {
        X509HostnameVerifier verifier = security.isStrictHostVerification()
                ? SSLSocketFactory.STRICT_HOSTNAME_VERIFIER
                : SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER;
        SSLSocketFactory socketFactory = new SSLSocketFactory(security.getSslContextProtocol(),
                security.getKeyStore(), security.getKeyStorePasswordAsString(), security.getTrustStore(),
                new SecureRandom(), null, verifier);
        return socketFactory;
    }

}