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/*-
 * ============LICENSE_START=======================================================
 * org.openecomp.aai
 * ================================================================================
 * Copyright (C) 2017 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.openecomp.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 org.openecomp.aai.exceptions.AAIException;

//import org.openecomp.aai.domain.yang.Customers;
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.HTTPBasicAuthFilter;
import com.sun.jersey.api.json.JSONConfiguration;
import com.sun.jersey.client.urlconnection.HTTPSProperties;
//import com.sun.jndi.toolkit.chars.BASE64Encoder;
//import org.apache.commons.codec.binary.Base64;
import static java.util.Base64.getEncoder;



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.getTwoWaySSLClient();

			ClientResponse res = client.resource(url).accept("application/json").header("X-TransactionId", "PROV001")
					.header("X-FromAppId", "AAI").type("application/json").get(ClientResponse.class);

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

	public static Client getBasicAuthClient() throws AAIException {

		String truststore_path = AAIConstants.AAI_HOME_ETC_AUTH + AAIConfig.get(AAIConstants.AAI_TRUSTSTORE_FILENAME);
		System.setProperty("javax.net.ssl.trustStore", truststore_path);
		
		javax.net.ssl.HttpsURLConnection.setDefaultHostnameVerifier(new javax.net.ssl.HostnameVerifier() {
			public boolean verify(String hostname, javax.net.ssl.SSLSession sslSession) {
				return true;
			}
		});

		String userName = AAIConfig.get("aai.tools.username");
		String password = AAIConfig.get("aai.tools.password");
	//	ClientConfig config = new DefaultClientConfig();
		Client client = Client.create();
		//client.addFilter(new HTTPBasicAuthFilter(userName, password));
		
		
		

		return client;
	}
	
	public static String getBasicAuthHeaderValue() throws AAIException {
		
		
		String userName = AAIConfig.get("aai.tools.username");
		String password = AAIConfig.get("aai.tools.password");
		String authString = userName + ":" + password;
		byte[] s = getEncoder().encode(authString.getBytes());
		String basicauthStringEnc = new String(s);
				
		return "Basic " + basicauthStringEnc;
		
	}
	
	
	

	/**
	 * Gets the client.
	 *
	 * @return the client
	 * @throws KeyManagementException
	 *             the key management exception
	 */
	public static Client getTwoWaySSLClient() throws KeyManagementException {

		ClientConfig config = new DefaultClientConfig();
		config.getFeatures().put(JSONConfiguration.FEATURE_POJO_MAPPING, Boolean.TRUE);
		config.getClasses().add(org.openecomp.aai.rest.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);
			} catch (Exception e) {
				System.out.println("Error setting up kmf: exiting");
				e.printStackTrace();
				System.exit(1);
			}

			ctx.init(kmf.getKeyManagers(), null, null);
			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);

		return client;
	}

}