我尝试在 php 中为 azure 存储上的 blob 创建 SAS。
我编写以下代码:
$key ="...";
$end = date('Y-m-d\TH\:i\:s\Z', strtotime('+1 day'));
function getSASForBlob($accountName, $container, $blob, $permissions ,$expiry, $key){
/* Create the signature */
$_arraysign = array();
$_arraysign[] = $permissions;
$_arraysign[] = '';
$_arraysign[] = $expiry;
$_arraysign[] = '/'.$accountName . '/' . $container . '/' . $blob;
$_arraysign[] = '';
$_arraysign[] = "2015-12-11"; //the API version is now required
$_arraysign[] = '';
$_arraysign[] = '';
$_arraysign[] = '';
$_arraysign[] = '';
$_arraysign[] = '';
$_str2sign = implode("\n", $_arraysign);
return base64_encode(hash_hmac('sha256', urldecode(utf8_encode($_str2sign)), base64_decode($key), true));
}
function getBlobUrl($accountName, $container, $blob, $resourceType, $permissions, $expiry, $_signature){
/* Create the signed query part */
$_parts = array();
$_parts[] = 'sv=2015-12-11';
$_parts[] = 'ss=b';
$_parts[] = 'srt=' . $resourceType;
$_parts[] = (!empty($permissions))?'sp=' . $permissions:'';
$_parts[] = (!empty($expiry))?'se=' .$expiry:'';
$_parts[] = 'spr=https';
$_parts[] = 'sig=' . urlencode($_signature);
/* Create the signed blob URL */
$_url = 'https://'
.$accountName.'.blob.core.windows.net/'
. $container . '/'
. $blob . '?'
. implode('&', $_parts);
return $_url;
}
$sig = getSASForBlob("cloudviewer","450-423-422-392", "thumbnail.jpeg", "r", $end, $key);
$url = getBlobUrl("cloudviewer","450-423-422-392","thumbnail.jpeg","o","r", $end, $sig);
echo(json_encode(array('url' => $url, 'sig' => $sig, 'expiry' => $end)));
我收到的网址结果是:
出现身份验证错误:签名不匹配。使用的签名字符串是 cloudviewer r b o 2016-12-09T17:08:25Z https 2015-12-11
我直接从 Azure 创建一个 SAS 并且有 url它的工作原理与第一个类似。
我已经尝试过
$_arraysign[] = '/blob/'.$accountName . '/' . $container . '/' . $blob;
$_arraysign[] = $accountName . '/' . $container . '/' . $blob;
你有什么主意吗 ?
thanks