/**
 * ============LICENSE_START=======================================================
 * org.onap.aai
 * ================================================================================
 * Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
 * ================================================================================
 * 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.
 * ============LICENSE_END=========================================================
 */
package org.onap.aai.util;

import java.io.FileInputStream;
import java.security.KeyManagementException;
import java.security.KeyStore;

import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.KeyManagerFactory;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;

import com.sun.jersey.api.client.Client;
import com.sun.jersey.api.client.ClientResponse;
import com.sun.jersey.api.client.config.ClientConfig;
import com.sun.jersey.api.client.config.DefaultClientConfig;
import com.sun.jersey.api.client.filter.LoggingFilter;
import com.sun.jersey.api.json.JSONConfiguration;
import com.sun.jersey.client.urlconnection.HTTPSProperties;

public class HttpsAuthClient{

	/**
	 * The main method.
	 *
	 * @param args the arguments
	 */
	public static void main(String[] args) {
		try {
			String url = AAIConfig.get(AAIConstants.AAI_SERVER_URL) + "business/customers";
			System.out.println("Making Jersey https call...");
			Client client = HttpsAuthClient.getClient();
		
			ClientResponse res = client.resource(url)
					.accept("application/json")
					.header("X-TransactionId", "PROV001")
					.header("X-FromAppId",  "AAI")
					.type("application/json")
					.get(ClientResponse.class);
			
//			System.out.println("Jersey result: ");
//			System.out.println(res.getEntity(String.class).toString());

		} catch (KeyManagementException e) {
			e.printStackTrace();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	
	/**
	 * Gets the client.
	 *
	 * @return the client
	 * @throws KeyManagementException the key management exception
	 */
	public static Client getClient() throws KeyManagementException {
		
		ClientConfig config = new DefaultClientConfig();
		config.getFeatures().put(JSONConfiguration.FEATURE_POJO_MAPPING, Boolean.TRUE);
		config.getClasses().add(org.onap.aai.restcore.CustomJacksonJaxBJsonProvider.class);
	
		SSLContext ctx = null;
		try {
			String truststore_path = AAIConstants.AAI_HOME_ETC_AUTH + AAIConfig.get(AAIConstants.AAI_TRUSTSTORE_FILENAME);
			String truststore_password = AAIConfig.get(AAIConstants.AAI_TRUSTSTORE_PASSWD);
			String keystore_path = AAIConstants.AAI_HOME_ETC_AUTH + AAIConfig.get(AAIConstants.AAI_KEYSTORE_FILENAME);
			String keystore_password = AAIConfig.get(AAIConstants.AAI_KEYSTORE_PASSWD);

		    System.setProperty("javax.net.ssl.trustStore", truststore_path);
		    System.setProperty("javax.net.ssl.trustStorePassword", truststore_password);
			HttpsURLConnection.setDefaultHostnameVerifier( new HostnameVerifier(){
			    public boolean verify(String string,SSLSession ssls) {
			        return true;
			    }
			});
						
			ctx = SSLContext.getInstance("TLSv1.2");
			KeyManagerFactory kmf = null;
			try {
				kmf = KeyManagerFactory.getInstance("SunX509");
				FileInputStream fin = new FileInputStream(keystore_path);
				KeyStore ks = KeyStore.getInstance("PKCS12");
				char[] pwd = keystore_password.toCharArray();
				ks.load(fin, pwd);
				kmf.init(ks, pwd);
				ctx.init(kmf.getKeyManagers(), null, null);
			} catch (Exception e) {
				System.out.println("Error setting up kmf: exiting");
				e.printStackTrace();
				System.exit(1);
			}

			config.getProperties().put(HTTPSProperties.PROPERTY_HTTPS_PROPERTIES, 
										new HTTPSProperties( new HostnameVerifier() {
				@Override
				public boolean verify( String s, SSLSession sslSession ) {
					return true;
				}
			}, ctx));
		} catch (Exception e) {
			System.out.println("Error setting up config: exiting");
			e.printStackTrace();
			System.exit(1);
		}
			
		Client client = Client.create(config);
		// uncomment this line to get more logging for the request/response
		// client.addFilter(new LoggingFilter(System.out));
		
		return client;
	}
	
}