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

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<?php
require_once 'Zend/Http/Response.php';

class Zend_Service_Amazon_Ec2_Response {
    protected $_xmlNamespace = 'http://ec2.amazonaws.com/doc/2009-04-04/';

    private $_httpResponse = null;

    private $_document = null;

    private $_xpath = null;

    private $_errorCode = 0;

    private $_errorMessage = '';

    public function __construct(Zend_Http_Response $httpResponse)
    {
        $this->_httpResponse = $httpResponse;
    }

    public function getXPath()
    {
        if ($this->_xpath === null) {
            $document = $this->getDocument();
            if ($document === false) {
                $this->_xpath = false;
            } else {
                $this->_xpath = new DOMXPath($document);
                $this->_xpath->registerNamespace('ec2',
                    $this->getNamespace());
            }
        }

        return $this->_xpath;
    }

    public function getDocument()
    {
        try {
            $body = $this->_httpResponse->getBody();
        } catch (Zend_Http_Exception $e) {
            $body = false;
        }

        if ($this->_document === null) {
            if ($body !== false) {
                // turn off libxml error handling
                $errors = libxml_use_internal_errors();

                $this->_document = new DOMDocument();
                if (!$this->_document->loadXML($body)) {
                    $this->_document = false;
                }

                // reset libxml error handling
                libxml_clear_errors();
                libxml_use_internal_errors($errors);
            } else {
                $this->_document = false;
            }
        }

        return $this->_document;
    }

    public function getNamespace()
    {
        return $this->_xmlNamespace;
    }

    public function setNamespace($namespace)
    {
        $this->_xmlNamespace = $namespace;
    }

}