299 lines
12 KiB
PHP
299 lines
12 KiB
PHP
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<?php
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/**
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* Zend Framework
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*
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* LICENSE
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*
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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://framework.zend.com/license/new-bsd
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@zend.com so we can send you a copy immediately.
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*
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* @category Zend
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* @package Zend_Service_Amazon
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* @subpackage Ec2
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* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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* @version $Id: Securitygroups.php 18096 2009-09-13 17:39:19Z sidhighwind $
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*/
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require_once 'Zend/Service/Amazon/Ec2/Abstract.php';
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/**
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* An Amazon EC2 interface to create, delete, describe, grand and revoke sercurity permissions.
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*
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* @category Zend
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* @package Zend_Service_Amazon
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* @subpackage Ec2
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* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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class Zend_Service_Amazon_Ec2_Securitygroups extends Zend_Service_Amazon_Ec2_Abstract
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{
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/**
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* Creates a new security group.
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*
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* Every instance is launched in a security group. If no security group is specified
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* during launch, the instances are launched in the default security group. Instances
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* within the same security group have unrestricted network access to each other.
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* Instances will reject network access attempts from other instances in a different
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* security group. As the owner of instances you can grant or revoke specific permissions
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* using the {@link authorizeIp}, {@link authorizeGroup}, {@link revokeGroup} and
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* {$link revokeIp} operations.
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*
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* @param string $name Name of the new security group.
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* @param string $description Description of the new security group.
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* @return boolean
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*/
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public function create($name, $description)
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{
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$params = array();
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$params['Action'] = 'CreateSecurityGroup';
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$params['GroupName'] = $name;
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$params['GroupDescription'] = $description;
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$response = $this->sendRequest($params);
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$xpath = $response->getXPath();
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$success = $xpath->evaluate('string(//ec2:return/text())');
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return ($success === "true");
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}
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/**
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* Returns information about security groups that you own.
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*
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* If you specify security group names, information about those security group is returned.
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* Otherwise, information for all security group is returned. If you specify a group
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* that does not exist, a fault is returned.
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*
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* @param string|array $name List of security groups to describe
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* @return array
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*/
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public function describe($name = null)
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{
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$params = array();
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$params['Action'] = 'DescribeSecurityGroups';
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if(is_array($name) && !empty($name)) {
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foreach($name as $k=>$name) {
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$params['GroupName.' . ($k+1)] = $name;
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}
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} elseif($name) {
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$params['GroupName.1'] = $name;
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}
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$response = $this->sendRequest($params);
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$xpath = $response->getXPath();
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$return = array();
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$nodes = $xpath->query('//ec2:securityGroupInfo/ec2:item');
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foreach($nodes as $node) {
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$item = array();
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$item['ownerId'] = $xpath->evaluate('string(ec2:ownerId/text())', $node);
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$item['groupName'] = $xpath->evaluate('string(ec2:groupName/text())', $node);
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$item['groupDescription'] = $xpath->evaluate('string(ec2:groupDescription/text())', $node);
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$ip_nodes = $xpath->query('ec2:ipPermissions/ec2:item', $node);
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foreach($ip_nodes as $ip_node) {
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$sItem = array();
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$sItem['ipProtocol'] = $xpath->evaluate('string(ec2:ipProtocol/text())', $ip_node);
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$sItem['fromPort'] = $xpath->evaluate('string(ec2:fromPort/text())', $ip_node);
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$sItem['toPort'] = $xpath->evaluate('string(ec2:toPort/text())', $ip_node);
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$ips = $xpath->query('ec2:ipRanges/ec2:item', $ip_node);
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$sItem['ipRanges'] = array();
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foreach($ips as $ip) {
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$sItem['ipRanges'][] = $xpath->evaluate('string(ec2:cidrIp/text())', $ip);
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}
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if(count($sItem['ipRanges']) == 1) {
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$sItem['ipRanges'] = $sItem['ipRanges'][0];
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}
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$item['ipPermissions'][] = $sItem;
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unset($ip_node, $sItem);
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}
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$return[] = $item;
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unset($item, $node);
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}
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return $return;
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}
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/**
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* Deletes a security group.
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*
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* If you attempt to delete a security group that contains instances, a fault is returned.
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* If you attempt to delete a security group that is referenced by another security group,
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* a fault is returned. For example, if security group B has a rule that allows access
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* from security group A, security group A cannot be deleted until the allow rule is removed.
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*
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* @param string $name Name of the security group to delete.
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* @return boolean
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*/
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public function delete($name)
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{
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$params = array();
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$params['Action'] = 'DeleteSecurityGroup';
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$params['GroupName'] = $name;
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$response = $this->sendRequest($params);
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$xpath = $response->getXPath();
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$success = $xpath->evaluate('string(//ec2:return/text())');
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return ($success === "true");
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}
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/**
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* Adds permissions to a security group
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*
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* Permissions are specified by the IP protocol (TCP, UDP or ICMP), the source of the request
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* (by IP range or an Amazon EC2 user-group pair), the source and destination port ranges
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* (for TCP and UDP), and the ICMP codes and types (for ICMP). When authorizing ICMP, -1
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* can be used as a wildcard in the type and code fields.
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*
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* Permission changes are propagated to instances within the security group as quickly as
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* possible. However, depending on the number of instances, a small delay might occur.
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*
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*
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* @param string $name Name of the group to modify.
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* @param string $ipProtocol IP protocol to authorize access to when operating on a CIDR IP.
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* @param integer $fromPort Bottom of port range to authorize access to when operating on a CIDR IP.
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* This contains the ICMP type if ICMP is being authorized.
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* @param integer $toPort Top of port range to authorize access to when operating on a CIDR IP.
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* This contains the ICMP code if ICMP is being authorized.
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* @param string $cidrIp CIDR IP range to authorize access to when operating on a CIDR IP.
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* @return boolean
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*/
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public function authorizeIp($name, $ipProtocol, $fromPort, $toPort, $cidrIp)
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{
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$params = array();
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$params['Action'] = 'AuthorizeSecurityGroupIngress';
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$params['GroupName'] = $name;
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$params['IpProtocol'] = $ipProtocol;
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$params['FromPort'] = $fromPort;
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$params['ToPort'] = $toPort;
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$params['CidrIp'] = $cidrIp;
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$response = $this->sendRequest($params);
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$xpath = $response->getXPath();
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$success = $xpath->evaluate('string(//ec2:return/text())');
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return ($success === "true");
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}
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/**
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* Adds permissions to a security group
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*
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* When authorizing a user/group pair permission, GroupName, SourceSecurityGroupName and
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* SourceSecurityGroupOwnerId must be specified.
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*
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* Permission changes are propagated to instances within the security group as quickly as
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* possible. However, depending on the number of instances, a small delay might occur.
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*
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* @param string $name Name of the group to modify.
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* @param string $groupName Name of security group to authorize access to when operating on a user/group pair.
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* @param string $ownerId Owner of security group to authorize access to when operating on a user/group pair.
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* @return boolean
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*/
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public function authorizeGroup($name, $groupName, $ownerId)
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{
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$params = array();
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$params['Action'] = 'AuthorizeSecurityGroupIngress';
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$params['GroupName'] = $name;
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$params['SourceSecurityGroupName'] = $groupName;
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$params['SourceSecurityGroupOwnerId'] = $ownerId;
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$response = $this->sendRequest($params);
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$xpath = $response->getXPath();
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$success = $xpath->evaluate('string(//ec2:return/text())');
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return ($success === "true");
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}
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/**
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* Revokes permissions from a security group. The permissions used to revoke must be specified
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* using the same values used to grant the permissions.
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*
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* Permissions are specified by the IP protocol (TCP, UDP or ICMP), the source of the request
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* (by IP range or an Amazon EC2 user-group pair), the source and destination port ranges
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* (for TCP and UDP), and the ICMP codes and types (for ICMP). When authorizing ICMP, -1
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* can be used as a wildcard in the type and code fields.
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*
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* Permission changes are propagated to instances within the security group as quickly as
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* possible. However, depending on the number of instances, a small delay might occur.
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*
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*
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* @param string $name Name of the group to modify.
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* @param string $ipProtocol IP protocol to revoke access to when operating on a CIDR IP.
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* @param integer $fromPort Bottom of port range to revoke access to when operating on a CIDR IP.
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* This contains the ICMP type if ICMP is being revoked.
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* @param integer $toPort Top of port range to revoked access to when operating on a CIDR IP.
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* This contains the ICMP code if ICMP is being revoked.
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* @param string $cidrIp CIDR IP range to revoke access to when operating on a CIDR IP.
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* @return boolean
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*/
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public function revokeIp($name, $ipProtocol, $fromPort, $toPort, $cidrIp)
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{
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$params = array();
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$params['Action'] = 'RevokeSecurityGroupIngress';
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$params['GroupName'] = $name;
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$params['IpProtocol'] = $ipProtocol;
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$params['FromPort'] = $fromPort;
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$params['ToPort'] = $toPort;
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$params['CidrIp'] = $cidrIp;
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$response = $this->sendRequest($params);
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$xpath = $response->getXPath();
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$success = $xpath->evaluate('string(//ec2:return/text())');
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return ($success === "true");
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}
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/**
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* Revokes permissions from a security group. The permissions used to revoke must be specified
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* using the same values used to grant the permissions.
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*
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* Permission changes are propagated to instances within the security group as quickly as
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* possible. However, depending on the number of instances, a small delay might occur.
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*
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* When revoking a user/group pair permission, GroupName, SourceSecurityGroupName and
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* SourceSecurityGroupOwnerId must be specified.
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*
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* @param string $name Name of the group to modify.
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* @param string $groupName Name of security group to revoke access to when operating on a user/group pair.
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* @param string $ownerId Owner of security group to revoke access to when operating on a user/group pair.
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* @return boolean
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*/
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public function revokeGroup($name, $groupName, $ownerId)
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{
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$params = array();
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$params['Action'] = 'RevokeSecurityGroupIngress';
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$params['GroupName'] = $name;
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$params['SourceSecurityGroupName'] = $groupName;
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$params['SourceSecurityGroupOwnerId'] = $ownerId;
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$response = $this->sendRequest($params);
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$xpath = $response->getXPath();
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$success = $xpath->evaluate('string(//ec2:return/text())');
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return ($success === "true");
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}
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}
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