139 lines
4.1 KiB
PHP
139 lines
4.1 KiB
PHP
<?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 Authentication
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* @copyright Copyright (c) 2005-2012 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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/**
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* @see Zend_Service_Amazon_Authentication
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*/
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require_once 'Zend/Service/Amazon/Authentication.php';
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/**
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* @see Zend_Crypt_Hmac
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*/
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require_once 'Zend/Crypt/Hmac.php';
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/**
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* @category Zend
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* @package Zend_Service_Amazon
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* @subpackage Authentication
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* @copyright Copyright (c) 2005-2012 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_Authentication_V2 extends Zend_Service_Amazon_Authentication
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{
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/**
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* Signature Version
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*/
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protected $_signatureVersion = '2';
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/**
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* Signature Encoding Method
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*/
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protected $_signatureMethod = 'HmacSHA256';
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/**
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* Type of http request
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* @var string
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*/
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protected $_httpMethod = "POST";
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/**
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* Generate the required attributes for the signature
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* @param string $url
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* @param array $parameters
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* @return string
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*/
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public function generateSignature($url, array &$parameters)
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{
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$parameters['AWSAccessKeyId'] = $this->_accessKey;
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$parameters['SignatureVersion'] = $this->_signatureVersion;
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$parameters['Version'] = $this->_apiVersion;
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$parameters['SignatureMethod'] = $this->_signatureMethod;
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if(!isset($parameters['Timestamp'])) {
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$parameters['Timestamp'] = gmdate('Y-m-d\TH:i:s\Z', time()+10);
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}
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$data = $this->_signParameters($url, $parameters);
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return $data;
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}
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/**
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* Set http request type to POST or GET
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* @param string $method
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*/
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public function setHttpMethod($method = "POST") {
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$this->_httpMethod = strtoupper($method);
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}
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/**
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* Get the current http request type
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* @return string
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*/
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public function getHttpMethod()
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{
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return $this->_httpMethod;
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}
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/**
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* Computes the RFC 2104-compliant HMAC signature for request parameters
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*
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* This implements the Amazon Web Services signature, as per the following
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* specification:
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*
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* 1. Sort all request parameters (including <tt>SignatureVersion</tt> and
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* excluding <tt>Signature</tt>, the value of which is being created),
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* ignoring case.
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*
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* 2. Iterate over the sorted list and append the parameter name (in its
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* original case) and then its value. Do not URL-encode the parameter
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* values before constructing this string. Do not use any separator
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* characters when appending strings.
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*
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* @param string $queue_url Queue URL
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* @param array $parameters the parameters for which to get the signature.
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*
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* @return string the signed data.
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*/
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protected function _signParameters($url, array &$paramaters)
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{
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$data = $this->_httpMethod . "\n";
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$data .= parse_url($url, PHP_URL_HOST) . "\n";
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$data .= ('' == $path = parse_url($url, PHP_URL_PATH)) ? '/' : $path;
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$data .= "\n";
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uksort($paramaters, 'strcmp');
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unset($paramaters['Signature']);
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$arrData = array();
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foreach($paramaters as $key => $value) {
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$arrData[] = $key . '=' . str_replace('%7E', '~', rawurlencode($value));
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}
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$data .= implode('&', $arrData);
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$hmac = Zend_Crypt_Hmac::compute($this->_secretKey, 'SHA256', $data, Zend_Crypt_Hmac::BINARY);
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$paramaters['Signature'] = base64_encode($hmac);
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return $data;
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}
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}
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