以下代码在指向真正的Azure存储帐户时将成功返回blob内容:
var path = $"{container}/{blob}";
var rfcDate = DateTime.UtcNow.ToString("R");
var headers = "GET\n\n\n\n\n\n\n\n\n\n\n\n" +
"x-ms-blob-type:Block\n" +
$"x-ms-date:{rfcDate}\n" +
$"x-ms-version:{ServiceVersion}\n" +
$"/{AccountName}/{path}";
var uri = new Uri(BlobEndpoint + path);
var request = new HttpRequestMessage(HttpMethod.Get, uri);
request.Headers.Add("x-ms-blob-type", "Block");
request.Headers.Add("x-ms-date", rfcDate);
request.Headers.Add("x-ms-version", ServiceVersion);
string signature = "";
using (var sha = new HMACSHA256(System.Convert.FromBase64String(AccountKey)))
{
var data = Encoding.UTF8.GetBytes(headers);
signature = System.Convert.ToBase64String(sha.ComputeHash(data));
}
var authHeader = $"SharedKey {AccountName}:{signature}";
request.Headers.Add("Authorization", authHeader);
using (var client = new HttpClient())
{
var response = await client.SendAsync(request);
return await response.Content.ReadAsStringAsync();
}
但是,如果我将其配置为使用Azure模拟器,其中:
我总是得到404.我使用的是Azure Storage Emulator v4.6。代码或配置是否不正确或模拟器不支持?
答案 0 :(得分:1)
您的代码存在两个问题:
http://127.0.0.1:1000
,但基URI为http://127.0.0.1:1000/devstoreaccount1
。Signature String
(header
变量)时,帐户名称必须出现两次。这是因为帐户名称是资源的URI路径的一部分(blob的URL将为http://127.0.0.1:1000/devstoreaccount1/container-name/blob-name
)。根据这些,请尝试以下代码:
static async Task<string> ReadBlobFromDevStorage()
{
var container = "temp";
var blob = "test.txt";
var ServiceVersion = "2009-09-19";
var AccountName = "devstoreaccount1";
var BlobEndpoint = "http://127.0.0.1:10000/devstoreaccount1";
var path = $"{container}/{blob}";
var AccountKey = "Eby8vdM02xNOcqFlqUwJPLlmEtlCDXJ1OUzFT50uSRZ6IFsuFq2UVErCz4I6tq/K1SZFPTOtr/KBHBeksoGMGw==";
var rfcDate = DateTime.UtcNow.ToString("R");
var headers = "GET\n\n\n\n\n\n\n\n\n\n\n\n" +
"x-ms-blob-type:Block\n" +
$"x-ms-date:{rfcDate}\n" +
$"x-ms-version:{ServiceVersion}\n" +
$"/{AccountName}/{AccountName}/{path}";
var uri = new Uri(BlobEndpoint + "/" + path);
var request = new HttpRequestMessage(HttpMethod.Get, uri);
request.Headers.Add("x-ms-blob-type", "Block");
request.Headers.Add("x-ms-date", rfcDate);
request.Headers.Add("x-ms-version", ServiceVersion);
string signature = "";
using (var sha = new HMACSHA256(System.Convert.FromBase64String(AccountKey)))
{
var data = Encoding.UTF8.GetBytes(headers);
signature = System.Convert.ToBase64String(sha.ComputeHash(data));
}
var authHeader = $"SharedKey {AccountName}:{signature}";
request.Headers.Add("Authorization", authHeader);
using (var client = new HttpClient())
{
var response = await client.SendAsync(request);
var content = await response.Content.ReadAsStringAsync();
Console.WriteLine(content);
return content;
}
}