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

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

class Zend_Service_Amazon_Ec2_Securitygroups extends Zend_Service_Amazon_Ec2_Abstract
{
    public function create($name, $description)
    {
        $params = array();
        $params['Action'] = 'CreateSecurityGroup';
        $params['GroupName'] = $name;
        $params['GroupDescription'] = $description;

        $response = $this->sendRequest($params);
        $xpath = $response->getXPath();
        $success  = $xpath->evaluate('string(//ec2:return/text())');

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

    public function describe($name = null)
    {
        $params = array();
        $params['Action'] = 'DescribeSecurityGroups';
        if(is_array($name) && !empty($name)) {
            foreach($name as $k=>$name) {
                $params['GroupName.' . ($k+1)] = $name;
            }
        } elseif($name) {
            $params['GroupName.1'] = $name;
        }

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

        $return = array();

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

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

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

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

            foreach($ip_nodes as $ip_node) {
                $sItem = array();

                $sItem['ipProtocol'] = $xpath->evaluate('string(ec2:ipProtocol/text())', $ip_node);
                $sItem['fromPort'] = $xpath->evaluate('string(ec2:fromPort/text())', $ip_node);
                $sItem['toPort'] = $xpath->evaluate('string(ec2:toPort/text())', $ip_node);

                $ips = $xpath->query('ec2:ipRanges/ec2:item', $ip_node);

                $sItem['ipRanges'] = array();
                foreach($ips as $ip) {
                    $sItem['ipRanges'][] = $xpath->evaluate('string(ec2:cidrIp/text())', $ip);
                }

                if(count($sItem['ipRanges']) == 1) {
                    $sItem['ipRanges'] = $sItem['ipRanges'][0];
                }

                $item['ipPermissions'][] = $sItem;
                unset($ip_node, $sItem);
            }

            $return[] = $item;

            unset($item, $node);
        }


        return $return;
    }

    public function delete($name)
    {
        $params = array();
        $params['Action'] = 'DeleteSecurityGroup';
        $params['GroupName'] = $name;

        $response = $this->sendRequest($params);
        $xpath = $response->getXPath();
        $success  = $xpath->evaluate('string(//ec2:return/text())');

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

    public function authorizeIp($name, $ipProtocol, $fromPort, $toPort, $cidrIp)
    {
        $params = array();
        $params['Action'] = 'AuthorizeSecurityGroupIngress';
        $params['GroupName'] = $name;
        $params['IpProtocol'] = $ipProtocol;
        $params['FromPort'] = $fromPort;
        $params['ToPort'] = $toPort;
        $params['CidrIp'] = $cidrIp;

        $response = $this->sendRequest($params);
        $xpath = $response->getXPath();
        $success  = $xpath->evaluate('string(//ec2:return/text())');

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

    }

    public function authorizeGroup($name, $groupName, $ownerId)
    {
        $params = array();
        $params['Action'] = 'AuthorizeSecurityGroupIngress';
        $params['GroupName'] = $name;
        $params['SourceSecurityGroupName'] = $groupName;
        $params['SourceSecurityGroupOwnerId'] = $ownerId;


        $response = $this->sendRequest($params);
        $xpath = $response->getXPath();
        $success  = $xpath->evaluate('string(//ec2:return/text())');


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

    public function revokeIp($name, $ipProtocol, $fromPort, $toPort, $cidrIp)
    {
        $params = array();
        $params['Action'] = 'RevokeSecurityGroupIngress';
        $params['GroupName'] = $name;
        $params['IpProtocol'] = $ipProtocol;
        $params['FromPort'] = $fromPort;
        $params['ToPort'] = $toPort;
        $params['CidrIp'] = $cidrIp;

        $response = $this->sendRequest($params);
        $xpath = $response->getXPath();
        $success  = $xpath->evaluate('string(//ec2:return/text())');

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

    public function revokeGroup($name, $groupName, $ownerId)
    {
        $params = array();
        $params['Action'] = 'RevokeSecurityGroupIngress';
        $params['GroupName'] = $name;
        $params['SourceSecurityGroupName'] = $groupName;
        $params['SourceSecurityGroupOwnerId'] = $ownerId;


        $response = $this->sendRequest($params);
        $xpath = $response->getXPath();
        $success  = $xpath->evaluate('string(//ec2:return/text())');


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