nextcloud/apps/files_external/3rdparty/aws-sdk-php/Aws/Common/Signature/AbstractSignature.php

91 lines
2.3 KiB
PHP

<?php
/**
* Copyright 2010-2013 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file is distributed
* on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
namespace Aws\Common\Signature;
use Guzzle\Http\Message\RequestInterface;
/**
* Abstract signature class that can be used when implementing new concrete
* AWS signature protocol strategies
*/
abstract class AbstractSignature implements SignatureInterface
{
/**
* @var int Timestamp
*/
private $timestamp;
/**
* Get the canonicalized query string for a request
*
* @param RequestInterface $request
* @return string
*/
protected function getCanonicalizedQueryString(RequestInterface $request)
{
$queryParams = $request->getQuery()->getAll();
unset($queryParams['X-Amz-Signature']);
if (empty($queryParams)) {
return '';
}
$qs = '';
ksort($queryParams);
foreach ($queryParams as $key => $values) {
if (is_array($values)) {
sort($values);
} elseif (!$values) {
$values = array('');
}
foreach ((array) $values as $value) {
$qs .= rawurlencode($key) . '=' . rawurlencode($value) . '&';
}
}
return substr($qs, 0, -1);
}
/**
* Provides the timestamp used for the class
*
* @param bool $refresh Set to TRUE to refresh the cached timestamp
*
* @return int
*/
protected function getTimestamp($refresh = false)
{
if (!$this->timestamp || $refresh) {
$this->timestamp = time();
}
return $this->timestamp;
}
/**
* Get a date for one of the parts of the requests
*
* @param string $format Date format
*
* @return string
*/
protected function getDateTime($format)
{
return gmdate($format, $this->getTimestamp());
}
}