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 <?php
 /**
  * Zend Framework
  *
  * LICENSE
  *
  * This source file is subject to the new BSD license that is bundled
  * with this package in the file LICENSE.txt.
  * It is also available through the world-wide-web at this URL:
  * http://framework.zend.com/license/new-bsd
  * If you did not receive a copy of the license and are unable to
  * obtain it through the world-wide-web, please send an email
  * to license@zend.com so we can send you a copy immediately.
  *
  * @category   Zend
  * @package    Zend_Service_Amazon
  * @subpackage Ec2
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  * @version    $Id$
  */
 
 /**
  * @see Zend_Service_Amazon_Ec2_Abstract
  */
 // require_once 'Zend/Service/Amazon/Ec2/Abstract.php';
 
 /**
  * @see Zend_Crypt_Hmac
  */
 // require_once 'Zend/Crypt/Hmac.php';
 
 /**
  * @see Zend_Json
  */
 // require_once 'Zend/Json.php';
 
 /**
  * An Amazon EC2 interface that allows yout to run, terminate, reboot and describe Amazon
  * Ec2 Instances.
  *
  * @category   Zend
  * @package    Zend_Service_Amazon
  * @subpackage Ec2
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  */
 class Zend_Service_Amazon_Ec2_Instance_Windows extends Zend_Service_Amazon_Ec2_Abstract
 {
     /**
      * Bundles an Amazon EC2 instance running Windows
      *
      * @param string $instanceId        The instance you want to bundle
      * @param string $s3Bucket          Where you want the ami to live on S3
      * @param string $s3Prefix          The prefix you want to assign to the AMI on S3
      * @param integer $uploadExpiration The expiration of the upload policy.  Amazon recommends 12 hours or longer.
      *                                  This is based in nubmer of minutes. Default is 1440 minutes (24 hours)
      * @return array                    containing the information on the new bundle operation
      */
     public function bundle($instanceId, $s3Bucket, $s3Prefix, $uploadExpiration = 1440)
     {
         $params = array();
         $params['Action'] = 'BundleInstance';
         $params['InstanceId'] = $instanceId;
         $params['Storage.S3.AWSAccessKeyId'] = $this->_getAccessKey();
         $params['Storage.S3.Bucket'] = $s3Bucket;
         $params['Storage.S3.Prefix'] = $s3Prefix;
         $uploadPolicy = $this->_getS3UploadPolicy($s3Bucket, $s3Prefix, $uploadExpiration);
         $params['Storage.S3.UploadPolicy'] = $uploadPolicy;
         $params['Storage.S3.UploadPolicySignature'] = $this->_signS3UploadPolicy($uploadPolicy);
 
         $response = $this->sendRequest($params);
 
         $xpath = $response->getXPath();
 
         $return = array();
         $return['instanceId'] = $xpath->evaluate('string(//ec2:bundleInstanceTask/ec2:instanceId/text())');
         $return['bundleId'] = $xpath->evaluate('string(//ec2:bundleInstanceTask/ec2:bundleId/text())');
         $return['state'] = $xpath->evaluate('string(//ec2:bundleInstanceTask/ec2:state/text())');
         $return['startTime'] = $xpath->evaluate('string(//ec2:bundleInstanceTask/ec2:startTime/text())');
         $return['updateTime'] = $xpath->evaluate('string(//ec2:bundleInstanceTask/ec2:updateTime/text())');
         $return['progress'] = $xpath->evaluate('string(//ec2:bundleInstanceTask/ec2:progress/text())');
         $return['storage']['s3']['bucket'] = $xpath->evaluate('string(//ec2:bundleInstanceTask/ec2:storage/ec2:S3/ec2:bucket/text())');
         $return['storage']['s3']['prefix'] = $xpath->evaluate('string(//ec2:bundleInstanceTask/ec2:storage/ec2:S3/ec2:prefix/text())');
 
         return $return;
     }
 
     /**
      * Cancels an Amazon EC2 bundling operation
      *
      * @param string $bundleId          The ID of the bundle task to cancel
      * @return array                    Information on the bundle task
      */
     public function cancelBundle($bundleId)
     {
         $params = array();
         $params['Action'] = 'CancelBundleTask';
         $params['BundleId'] = $bundleId;
 
         $response = $this->sendRequest($params);
 
         $xpath = $response->getXPath();
 
         $return = array();
         $return['instanceId'] = $xpath->evaluate('string(//ec2:bundleInstanceTask/ec2:instanceId/text())');
         $return['bundleId'] = $xpath->evaluate('string(//ec2:bundleInstanceTask/ec2:bundleId/text())');
         $return['state'] = $xpath->evaluate('string(//ec2:bundleInstanceTask/ec2:state/text())');
         $return['startTime'] = $xpath->evaluate('string(//ec2:bundleInstanceTask/ec2:startTime/text())');
         $return['updateTime'] = $xpath->evaluate('string(//ec2:bundleInstanceTask/ec2:updateTime/text())');
         $return['progress'] = $xpath->evaluate('string(//ec2:bundleInstanceTask/ec2:progress/text())');
         $return['storage']['s3']['bucket'] = $xpath->evaluate('string(//ec2:bundleInstanceTask/ec2:storage/ec2:S3/ec2:bucket/text())');
         $return['storage']['s3']['prefix'] = $xpath->evaluate('string(//ec2:bundleInstanceTask/ec2:storage/ec2:S3/ec2:prefix/text())');
 
         return $return;
     }
 
     /**
      * Describes current bundling tasks
      *
      * @param string|array $bundleId            A single or a list of bundle tasks that you want
      *                                          to find information for.
      * @return array                            Information for the task that you requested
      */
     public function describeBundle($bundleId = '')
     {
         $params = array();
         $params['Action'] = 'DescribeBundleTasks';
 
         if(is_array($bundleId) && !empty($bundleId)) {
             foreach($bundleId as $k=>$name) {
                 $params['bundleId.' . ($k+1)] = $name;
             }
         } elseif(!empty($bundleId)) {
             $params['bundleId.1'] = $bundleId;
         }
 
         $response = $this->sendRequest($params);
 
         $xpath = $response->getXPath();
 
         $items = $xpath->evaluate('//ec2:bundleInstanceTasksSet/ec2:item');
         $return = array();
 
         foreach($items as $item) {
             $i = array();
             $i['instanceId'] = $xpath->evaluate('string(ec2:instanceId/text())', $item);
             $i['bundleId'] = $xpath->evaluate('string(ec2:bundleId/text())', $item);
             $i['state'] = $xpath->evaluate('string(ec2:state/text())', $item);
             $i['startTime'] = $xpath->evaluate('string(ec2:startTime/text())', $item);
             $i['updateTime'] = $xpath->evaluate('string(ec2:updateTime/text())', $item);
             $i['progress'] = $xpath->evaluate('string(ec2:progress/text())', $item);
             $i['storage']['s3']['bucket'] = $xpath->evaluate('string(ec2:storage/ec2:S3/ec2:bucket/text())', $item);
             $i['storage']['s3']['prefix'] = $xpath->evaluate('string(ec2:storage/ec2:S3/ec2:prefix/text())', $item);
 
             $return[] = $i;
             unset($i);
         }
 
 
         return $return;
     }
 
     /**
      * Generates the S3 Upload Policy Information
      *
      * @param string $bucketName        Which bucket you want the ami to live in on S3
      * @param string $prefix            The prefix you want to assign to the AMI on S3
      * @param integer $expireInMinutes  The expiration of the upload policy.  Amazon recommends 12 hours or longer.
      *                                  This is based in nubmer of minutes. Default is 1440 minutes (24 hours)
      * @return string                   Base64 encoded string that is the upload policy
      */
     protected function _getS3UploadPolicy($bucketName, $prefix, $expireInMinutes = 1440)
     {
         $arrParams = array();
         $arrParams['expiration'] = gmdate("Y-m-d\TH:i:s.\\0\\0\\0\\Z", (time() + ($expireInMinutes * 60)));
         $arrParams['conditions'][] = array('bucket' => $bucketName);
         $arrParams['conditions'][] = array('acl' => 'ec2-bundle-read');
         $arrParams['conditions'][] = array('starts-with', '$key', $prefix);
 
         return base64_encode(Zend_Json::encode($arrParams));
     }
 
     /**
      * Signed S3 Upload Policy
      *
      * @param string $policy            Base64 Encoded string that is the upload policy
      * @return string                   SHA1 encoded S3 Upload Policy
      */
     protected function _signS3UploadPolicy($policy)
     {
         $hmac = Zend_Crypt_Hmac::compute($this->_getSecretKey(), 'SHA1', $policy, Zend_Crypt_Hmac::BINARY);
         return $hmac;
     }
 }