C:/xampp/htdocs/moodle/lib/zend/Zend/Service/Amazon/Ec2/Instance.php

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<?php
require_once 'Zend/Service/Amazon/Ec2/Abstract.php';

class Zend_Service_Amazon_Ec2_Instance extends Zend_Service_Amazon_Ec2_Abstract
{
    const SMALL = 'm1.small';

    const LARGE = 'm1.large';

    const XLARGE = 'm1.xlarge';

    const HCPU_MEDIUM = 'c1.medium';

    const HCPU_XLARGE = 'c1.xlarge';


    public function run(array $options)
    {
        $_defaultOptions = array(
            'minCount'  => 1,
            'maxCount'  => 1,
            'instanceType' => Zend_Service_Amazon_Ec2_Instance::SMALL
        );

        // set / override the defualt optoins if they are not passed into the array;
        $options = array_merge($_defaultOptions, $options);

        if(!isset($options['imageId'])) {
            require_once 'Zend/Service/Amazon/Ec2/Exception.php';
            throw new Zend_Service_Amazon_Ec2_Exception('No Image Id Provided');
        }


        $params = array();
        $params['Action'] = 'RunInstances';
        $params['ImageId'] = $options['imageId'];
        $params['MinCount'] = $options['minCount'];
        $params['MaxCount'] = $options['maxCount'];

        if(isset($options['keyName'])) {
            $params['KeyName'] = $options['keyName'];
        }

        if(is_array($options['securityGroup']) && !empty($options['securityGroup'])) {
            foreach($options['securityGroup'] as $k=>$name) {
                $params['SecurityGroup.' . ($k+1)] = $name;
            }
        } elseif(isset($options['securityGroup'])) {
            $params['SecurityGroup.1'] = $options['securityGroup'];
        }

        if(isset($options['userData'])) {
            $params['UserData'] = base64_encode($options['userData']);
        }

        if(isset($options['instanceType'])) {
            $params['InstanceType'] = $options['instanceType'];
        }

        if(isset($options['placement'])) {
            $params['Placement.AvailabilityZone'] = $options['placement'];
        }

        if(isset($options['kernelId'])) {
            $params['KernelId'] = $options['kernelId'];
        }

        if(isset($options['ramdiskId'])) {
            $params['RamdiskId'] = $options['ramdiskId'];
        }

        if(isset($options['blockDeviceVirtualName']) && isset($options['blockDeviceName'])) {
            $params['BlockDeviceMapping.n.VirtualName'] = $options['blockDeviceVirtualName'];
            $params['BlockDeviceMapping.n.DeviceName'] = $options['blockDeviceName'];
        }

        if(isset($options['monitor']) && $options['monitor'] === true) {
            $params['Monitoring.Enabled'] = true;
        }

        $response = $this->sendRequest($params);
        $xpath = $response->getXPath();

        $return = array();

        $return['reservationId'] = $xpath->evaluate('string(//ec2:reservationId/text())');
        $return['ownerId'] = $xpath->evaluate('string(//ec2:ownerId/text())');

        $gs = $xpath->query('//ec2:groupSet/ec2:item');
        foreach($gs as $gs_node) {
            $return['groupSet'][] = $xpath->evaluate('string(ec2:groupId/text())', $gs_node);
            unset($gs_node);
        }
        unset($gs);

        $is = $xpath->query('//ec2:instancesSet/ec2:item');
        foreach($is as $is_node) {
            $item = array();

            $item['instanceId'] = $xpath->evaluate('string(ec2:instanceId/text())', $is_node);
            $item['imageId'] = $xpath->evaluate('string(ec2:imageId/text())', $is_node);
            $item['instanceState']['code'] = $xpath->evaluate('string(ec2:instanceState/ec2:code/text())', $is_node);
            $item['instanceState']['name'] = $xpath->evaluate('string(ec2:instanceState/ec2:name/text())', $is_node);
            $item['privateDnsName'] = $xpath->evaluate('string(ec2:privateDnsName/text())', $is_node);
            $item['dnsName'] = $xpath->evaluate('string(ec2:dnsName/text())', $is_node);
            $item['keyName'] = $xpath->evaluate('string(ec2:keyName/text())', $is_node);
            $item['instanceType'] = $xpath->evaluate('string(ec2:instanceType/text())', $is_node);
            $item['amiLaunchIndex'] = $xpath->evaluate('string(ec2:amiLaunchIndex/text())', $is_node);
            $item['launchTime'] = $xpath->evaluate('string(ec2:launchTime/text())', $is_node);
            $item['availabilityZone'] = $xpath->evaluate('string(ec2:placement/ec2:availabilityZone/text())', $is_node);

            $return['instances'][] = $item;
            unset($item);
            unset($is_node);
        }
        unset($is);

        return $return;

    }

    public function describe($instanceId = null, $ignoreTerminated = false)
    {
        $params = array();
        $params['Action'] = 'DescribeInstances';

        if(is_array($instanceId) && !empty($instanceId)) {
            foreach($instanceId as $k=>$name) {
                $params['InstanceId.' . ($k+1)] = $name;
            }
        } elseif($instanceId) {
            $params['InstanceId.1'] = $instanceId;
        }

        $response = $this->sendRequest($params);

        $xpath = $response->getXPath();

        $nodes = $xpath->query('//ec2:reservationSet/ec2:item');

        $return = array();
        $return['instances'] = array();

        foreach($nodes as $node) {
            if($xpath->evaluate('string(ec2:instancesSet/ec2:item/ec2:instanceState/ec2:code/text())', $node) == 48 && $ignoreTerminated) continue;
            $item = array();

            $item['reservationId'] = $xpath->evaluate('string(ec2:reservationId/text())', $node);
            $item['ownerId'] = $xpath->evaluate('string(ec2:ownerId/text())', $node);

            $gs = $xpath->query('ec2:groupSet/ec2:item', $node);
            foreach($gs as $gs_node) {
                $item['groupSet'][] = $xpath->evaluate('string(ec2:groupId/text())', $gs_node);
                unset($gs_node);
            }
            unset($gs);

            $is = $xpath->query('ec2:instancesSet/ec2:item', $node);

            foreach($is as $is_node) {

                $item['instanceId'] = $xpath->evaluate('string(ec2:instanceId/text())', $is_node);
                $item['imageId'] = $xpath->evaluate('string(ec2:imageId/text())', $is_node);
                $item['instanceState']['code'] = $xpath->evaluate('string(ec2:instanceState/ec2:code/text())', $is_node);
                $item['instanceState']['name'] = $xpath->evaluate('string(ec2:instanceState/ec2:name/text())', $is_node);
                $item['privateDnsName'] = $xpath->evaluate('string(ec2:privateDnsName/text())', $is_node);
                $item['dnsName'] = $xpath->evaluate('string(ec2:dnsName/text())', $is_node);
                $item['keyName'] = $xpath->evaluate('string(ec2:keyName/text())', $is_node);
                $item['productCode'] = $xpath->evaluate('string(ec2:productCodesSet/ec2:item/ec2:productCode/text())', $is_node);
                $item['instanceType'] = $xpath->evaluate('string(ec2:instanceType/text())', $is_node);
                $item['launchTime'] = $xpath->evaluate('string(ec2:launchTime/text())', $is_node);
                $item['availabilityZone'] = $xpath->evaluate('string(ec2:placement/ec2:availabilityZone/text())', $is_node);
                $item['kernelId'] = $xpath->evaluate('string(ec2:kernelId/text())', $is_node);
                $item['ramediskId'] = $xpath->evaluate('string(ec2:ramediskId/text())', $is_node);
                $item['amiLaunchIndex'] = $xpath->evaluate('string(ec2:amiLaunchIndex/text())', $is_node);
                $item['monitoringState'] = $xpath->evaluate('string(ec2:monitoring/ec2:state/text())', $is_node);

                $return['instances'][] = $item;
                unset($is_node);
            }
            unset($item);
            unset($is);
        }

        return $return;
    }

    public function describeByImageId($imageId, $ignoreTerminated = false)
    {
        $arrInstances = $this->describe(null, $ignoreTerminated);

        $return = array();

        foreach($arrInstances['instances'] as $instance) {
            if($instance['imageId'] !== $imageId) continue;
            $return[] = $instance;
        }

        return $return;
    }

    public function terminate($instanceId)
    {
        $params = array();
        $params['Action'] = 'TerminateInstances';

        if(is_array($instanceId) && !empty($instanceId)) {
            foreach($instanceId as $k=>$name) {
                $params['InstanceId.' . ($k+1)] = $name;
            }
        } elseif($instanceId) {
            $params['InstanceId.1'] = $instanceId;
        }

        $response = $this->sendRequest($params);
        $xpath = $response->getXPath();

        $nodes = $xpath->query('//ec2:instancesSet/ec2:item');

        $return = array();
        foreach($nodes as $node) {
            $item = array();

            $item['instanceId'] = $xpath->evaluate('string(ec2:instanceId/text())', $node);
            $item['shutdownState']['code'] = $xpath->evaluate('string(ec2:shutdownState/ec2:code/text())', $node);
            $item['shutdownState']['name'] = $xpath->evaluate('string(ec2:shutdownState/ec2:name/text())', $node);
            $item['previousState']['code'] = $xpath->evaluate('string(ec2:previousState/ec2:code/text())', $node);
            $item['previousState']['name'] = $xpath->evaluate('string(ec2:previousState/ec2:name/text())', $node);

            $return[] = $item;
            unset($item);
        }

        return $return;
    }

    public function reboot($instanceId)
    {
        $params = array();
        $params['Action'] = 'RebootInstances';

        if(is_array($instanceId) && !empty($instanceId)) {
            foreach($instanceId as $k=>$name) {
                $params['InstanceId.' . ($k+1)] = $name;
            }
        } elseif($instanceId) {
            $params['InstanceId.1'] = $instanceId;
        }

        $response = $this->sendRequest($params);
        $xpath = $response->getXPath();

        $return = $xpath->evaluate('string(//ec2:return/text())');

        return ($return === "true");
    }

    public function consoleOutput($instanceId)
    {
        $params = array();
        $params['Action'] = 'GetConsoleOutput';
        $params['InstanceId'] = $instanceId;

        $response = $this->sendRequest($params);
        $xpath = $response->getXPath();

        $return = array();

        $return['instanceId'] = $xpath->evaluate('string(//ec2:instanceId/text())');
        $return['timestamp'] = $xpath->evaluate('string(//ec2:timestamp/text())');
        $return['output'] = base64_decode($xpath->evaluate('string(//ec2:output/text())'));

        return $return;
    }

    public function confirmProduct($productCode, $instanceId)
    {
        $params = array();
        $params['Action'] = 'ConfirmProductInstance';
        $params['ProductCode'] = $productCode;
        $params['InstanceId'] = $instanceId;

        $response = $this->sendRequest($params);
        $xpath = $response->getXPath();

        $result = $xpath->evaluate('string(//ec2:result/text())');

        if($result === "true") {
            $return['result'] = true;
            $return['ownerId'] = $xpath->evaluate('string(//ec2:ownerId/text())');

            return $return;
        }

        return false;
    }

    public function monitor($instanceId)
    {
        $params = array();
        $params['Action'] = 'MonitorInstances';

        if(is_array($instanceId) && !empty($instanceId)) {
            foreach($instanceId as $k=>$name) {
                $params['InstanceId.' . ($k+1)] = $name;
            }
        } elseif($instanceId) {
            $params['InstanceId.1'] = $instanceId;
        }

        $response = $this->sendRequest($params);
        $xpath = $response->getXPath();


        $items = $xpath->query('//ec2:instancesSet/ec2:item');

        $arrReturn = array();
        foreach($items as $item) {
            $i = array();
            $i['instanceid'] = $xpath->evaluate('string(//ec2:instanceId/text())', $item);
            $i['monitorstate'] = $xpath->evaluate('string(//ec2:monitoring/ec2:state/text())');
            $arrReturn[] = $i;
            unset($i);
        }

        return $arrReturn;
    }
    public function unmonitor($instanceId)
    {
        $params = array();
        $params['Action'] = 'UnmonitorInstances';

        if(is_array($instanceId) && !empty($instanceId)) {
            foreach($instanceId as $k=>$name) {
                $params['InstanceId.' . ($k+1)] = $name;
            }
        } elseif($instanceId) {
            $params['InstanceId.1'] = $instanceId;
        }

        $response = $this->sendRequest($params);
        $xpath = $response->getXPath();


        $items = $xpath->query('//ec2:instancesSet/ec2:item');

        $arrReturn = array();
        foreach($items as $item) {
            $i = array();
            $i['instanceid'] = $xpath->evaluate('string(//ec2:instanceId/text())', $item);
            $i['monitorstate'] = $xpath->evaluate('string(//ec2:monitoring/ec2:state/text())');
            $arrReturn[] = $i;
            unset($i);
        }

        return $arrReturn;
    }

}