RestAdapterProvider.java

/**
 * Copyright 2014 Markus Geiss
 *
 * Licensed 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 org.mifos.module.sms.provider;

import com.squareup.okhttp.OkHttpClient;
import org.mifos.module.sms.domain.SMSBridgeConfig;
import org.springframework.stereotype.Component;
import retrofit.RestAdapter;
import retrofit.client.OkClient;

import javax.net.ssl.*;
import java.security.SecureRandom;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;

@Component
public class RestAdapterProvider {

    public RestAdapterProvider() {
        super();
    }

    public RestAdapter get(final SMSBridgeConfig smsBridgeConfig) {

        final OkHttpClient okHttpClient = this.createClient();

        final RestAdapter restAdapter = new RestAdapter.Builder()
                .setEndpoint(smsBridgeConfig.getEndpoint())
                .setClient(new OkClient(okHttpClient))
                .build();
        return restAdapter;
    }

    @SuppressWarnings("unused")
    public OkHttpClient createClient() {

        final OkHttpClient client = new OkHttpClient();

        final TrustManager[] certs = new TrustManager[]{new X509TrustManager() {

            @Override
            public X509Certificate[] getAcceptedIssuers() {
                return null;
            }

            @Override
            public void checkServerTrusted(final X509Certificate[] chain,
                                           final String authType) throws CertificateException {
            }

            @Override
            public void checkClientTrusted(final X509Certificate[] chain,
                                           final String authType) throws CertificateException {
            }
        }};

        SSLContext ctx = null;
        try {
            ctx = SSLContext.getInstance("TLS");
            ctx.init(null, certs, new SecureRandom());
        } catch (final java.security.GeneralSecurityException ex) {
        }

        try {
            final HostnameVerifier hostnameVerifier = new HostnameVerifier() {
                @Override
                public boolean verify(final String hostname,
                                      final SSLSession session) {
                    return true;
                }
            };
            client.setHostnameVerifier(hostnameVerifier);
            client.setSslSocketFactory(ctx.getSocketFactory());
        } catch (final Exception e) {
        }

        return client;
    }
}