C:/xampp/htdocs/moodle/lib/zend/Zend/Service/WindowsAzure/Credentials/CredentialsAbstract.php

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

abstract class Zend_Service_WindowsAzure_Credentials_CredentialsAbstract
{
        const DEVSTORE_ACCOUNT       = "devstoreaccount1";
        const DEVSTORE_KEY           = "Eby8vdM02xNOcqFlqUwJPLlmEtlCDXJ1OUzFT50uSRZ6IFsuFq2UVErCz4I6tq/K1SZFPTOtr/KBHBeksoGMGw==";
        
        const PREFIX_PROPERTIES      = "x-ms-prop-";
        const PREFIX_METADATA        = "x-ms-meta-";
        const PREFIX_STORAGE_HEADER  = "x-ms-";
        
        const PERMISSION_READ        = "r";
        const PERMISSION_WRITE       = "w";
        const PERMISSION_DELETE      = "d";
        const PERMISSION_LIST        = "l";

        protected $_accountName = '';
        
        protected $_accountKey = '';
        
        protected $_usePathStyleUri = false;
        
        public function __construct(
                $accountName = Zend_Service_WindowsAzure_Credentials_CredentialsAbstract::DEVSTORE_ACCOUNT,
                $accountKey  = Zend_Service_WindowsAzure_Credentials_CredentialsAbstract::DEVSTORE_KEY,
                $usePathStyleUri = false
        ) {
                $this->_accountName = $accountName;
                $this->_accountKey = base64_decode($accountKey);
                $this->_usePathStyleUri = $usePathStyleUri;
        }
        
        public function setAccountName($value = Zend_Service_WindowsAzure_Credentials_CredentialsAbstract::DEVSTORE_ACCOUNT)
        {
                $this->_accountName = $value;
                return $this;
        }
        
        public function setAccountkey($value = Zend_Service_WindowsAzure_Credentials_CredentialsAbstract::DEVSTORE_KEY)
        {
                $this->_accountKey = base64_decode($value);
                return $this;
        }
        
        public function setUsePathStyleUri($value = false)
        {
                $this->_usePathStyleUri = $value;
                return $this;
        }
        
        abstract public function signRequestUrl(
                $requestUrl = '',
                $resourceType = Zend_Service_WindowsAzure_Storage::RESOURCE_UNKNOWN,
                $requiredPermission = Zend_Service_WindowsAzure_Credentials_CredentialsAbstract::PERMISSION_READ
        );
        
        abstract public function signRequestHeaders(
                $httpVerb = Zend_Http_Client::GET,
                $path = '/',
                $queryString = '',
                $headers = null,
                $forTableStorage = false,
                $resourceType = Zend_Service_WindowsAzure_Storage::RESOURCE_UNKNOWN,
                $requiredPermission = Zend_Service_WindowsAzure_Credentials_CredentialsAbstract::PERMISSION_READ
        );
        
        
        protected function _prepareQueryStringForSigning($value)
        {
            // Check for 'comp='
            if (strpos($value, 'comp=') === false) {
                // If not found, no query string needed
                return '';
            } else {
                // If found, make sure it is the only parameter being used      
                if (strlen($value) > 0 && strpos($value, '?') === 0) {
                        $value = substr($value, 1);
                }
                
                // Split parts
                $queryParts = explode('&', $value);
                foreach ($queryParts as $queryPart) {
                    if (strpos($queryPart, 'comp=') !== false) {
                        return '?' . $queryPart;
                    }
                }

                // Should never happen...
                        return '';
            }
        }
}