/*
* Copyright [2013] [Cloud4SOA, www.cloud4soa.eu]
*
*
* 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 beanstalk;
import sun.misc.BASE64Encoder;
import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLEncoder;
import java.security.SignatureException;
import java.text.SimpleDateFormat;
import java.util.*;
/**
* Makes a request to the Alexa Web Information Service UrlInfo action.
*/
public class BeansDeleteApplication {
private static final String ACTION_NAME = "DeleteApplication";
private String application_name = "";
private String enviroment_name = "";
private String app_version_label = "";
private String description = "";
private static final String RESPONSE_GROUP_NAME = "Rank,ContactInfo,LinksInCount";
private static final String SERVICE_HOST = "elasticbeanstalk.us-east-1.amazonaws.com";
private static final String AWS_BASE_URL = "https://" + SERVICE_HOST + "/?";
private static final String HASH_ALGORITHM = "HmacSHA256";
private static final String DATEFORMAT_AWS = "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'";
private static final String SERVICE_VERSION = "2010-12-01";
private String accessKeyId;
//private String secretAccessKey;
private String war;
public BeansDeleteApplication() {
}
public BeansDeleteApplication(String accessKeyId, String secretAccessKey, String appname) {
this.accessKeyId = accessKeyId;
//this.secretAccessKey = secretAccessKey;
// this.enviroment_name = environment;
this.application_name = appname;
// this.app_version_label = appversion;
// this.description = description;
}
/**
* Generates a timestamp for use with AWS request signing
*
* @param date current date
* @return timestamp
*/
protected static String getTimestampFromLocalTime(Date date) {
SimpleDateFormat format = new SimpleDateFormat(DATEFORMAT_AWS);
format.setTimeZone(TimeZone.getTimeZone("GMT"));
//format.setTimeZone(TimeZone.getTimeZone("GMT+3"));
return format.format(date);
}
/**
* Computes RFC 2104-compliant HMAC signature.
*
* @param data The data to be signed.
* @return The base64-encoded RFC 2104-compliant HMAC signature.
* @throws java.security.SignatureException
* when signature generation fails
*/
protected String generateSignature(String data, String secretAccessKey)
throws java.security.SignatureException {
String result;
try {
// get a hash key from the raw key bytes
SecretKeySpec signingKey = new SecretKeySpec(
secretAccessKey.getBytes(), HASH_ALGORITHM);
// get a hasher instance and initialize with the signing key
Mac mac = Mac.getInstance(HASH_ALGORITHM);
mac.init(signingKey);
// compute the hmac on input data bytes
byte[] rawHmac = mac.doFinal(data.getBytes());
// base64-encode the hmac
// result = Encoding.EncodeBase64(rawHmac);
result = new BASE64Encoder().encode(rawHmac);
} catch (Exception e) {
throw new SignatureException("Failed to generate HMAC : "
+ e.getMessage());
}
return result;
}
/**
* Makes a request to the specified Url and return the results as a String
*
* @param requestUrl url to make request to
* @return the XML document as a String
* @throws IOException
*/
public static String makeRequest(String requestUrl) throws IOException {
URL url = new URL(requestUrl);
URLConnection conn = url.openConnection();
InputStream in = conn.getInputStream();
// Read the response
StringBuffer sb = new StringBuffer();
int c;
int lastChar = 0;
while ((c = in.read()) != -1) {
if (c == '<' && (lastChar == '>'))
sb.append('\n');
sb.append((char) c);
lastChar = c;
}
in.close();
return sb.toString();
}
/**
* Builds the query string
*/
protected String buildQuery()
throws UnsupportedEncodingException {
String timestamp = getTimestampFromLocalTime(Calendar.getInstance().getTime());
Map<String, String> queryParams = new TreeMap<String, String>();
//queryParams.put("Action", ACTION_NAME);
queryParams.put("ApplicationName", application_name);
// queryParams.put("CNAMEPrefix", APPLICATION_NAME);
queryParams.put("AWSAccessKeyId", accessKeyId);///////COMMON
queryParams.put("Operation", ACTION_NAME);///////COMMON
queryParams.put("SignatureVersion", "2");///////COMMON
queryParams.put("SignatureMethod", HASH_ALGORITHM);///////COMMON
queryParams.put("Timestamp", timestamp);///////COMMON
//queryParams.put("Url", site);
queryParams.put("Version", SERVICE_VERSION);///////COMMON(version of REST API)
//queryParams.put("VersionLabel", app_version_label);
String query = "";
boolean first = true;
for (String name : queryParams.keySet()) {
if (first)
first = false;
else
query += "&";
query += name + "=" + URLEncoder.encode(queryParams.get(name), "UTF-8");
}
return query;
}
// public static void main(String[] args) throws Exception {
/*if (args.length < 3) {
System.err.println("Usage: UrlInfo ACCESS_KEY_ID " +
"SECRET_ACCESS_KEY site");
System.exit(-1);
}
// Read command line parameters
String accessKey = args[0];
String secretKey = args[1];
String site = args[2];*/
/*
String war = "cloud4soa";
BeansUpdateEnvironment updater = new BeansUpdateEnvironment(accessKey, secretKey, war);
String query = updater.buildQuery();
String toSign = "GET\n" + SERVICE_HOST + "\n/\n" + query;
System.out.println("String to sign:\n" + toSign + "\n");
String signature = updater.generateSignature(toSign);
String uri = AWS_BASE_URL + query + "&Signature=" +
URLEncoder.encode(signature, "UTF-8");
System.out.println("Making request to:\n");
System.out.println(uri + "\n");
// Make the Request
String xmlResponse = makeRequest(uri);
// Print out the XML Response
System.out.println("Response:\n");
System.out.println(xmlResponse);
}
*/
public void deleteApplication(String accessKeyId, String secretAccessKey, String appname) throws Exception {
/*if (args.length < 3) {
System.err.println("Usage: UrlInfo ACCESS_KEY_ID " +
"SECRET_ACCESS_KEY site");
System.exit(-1);
}
// Read command line parameters
String accessKey = args[0];
String secretKey = args[1];
String site = args[2];*/
// String war = "cloud4soa";
BeansDeleteApplication updater = new BeansDeleteApplication(accessKeyId, secretAccessKey, appname);
String query = updater.buildQuery();
String toSign = "GET\n" + SERVICE_HOST + "\n/\n" + query;
System.out.println("String to sign:\n" + toSign + "\n");
String signature = updater.generateSignature(toSign,secretAccessKey);
String uri = AWS_BASE_URL + query + "&Signature=" +
URLEncoder.encode(signature, "UTF-8");
System.out.println("Making request to:\n");
System.out.println(uri + "\n");
// Make the Request
String xmlResponse = makeRequest(uri);
// Print out the XML Response
System.out.println("Response:\n");
System.out.println(xmlResponse);
}
}