来自C#的Azure BLOB存储REST调用 [英] Azure BLOB storage REST call from C#

问题描述

我正在尝试通过控制台应用程序与Azure Blob存储上的容器通信.我无法使用SDK，因此REST是我唯一的选择.使用.NET 4.5.2.的语言是C#.

我尝试了这两个代码，并且都返回相同的错误

还有其他人遇到过同样的问题并成功解决了吗?

我为几乎所有内容添加了带有(*)的CORS规则

该代码与两个链接完全相同，因此我不在这里添加它.

 类Program{静态void Main(string [] args){UploadBlobWithRestAPI();}公共静态无效UploadBlobWithRestAPI(){字符串storageKey ="ffFJwPXTqyYvRoubNQEti/aQUUMwn41BG3KDtl/yGpG4DR1eKaHRq6Bhbw ==";字符串storageAccount ="xyz";字符串containerName ="notes";字符串blobName ="test567";字符串方法="PUT";string sampleContent ="Lorem ipsum dolor sit amet，consectetur adipiscing elit.Nulla id euismod urna.int contentLength = Encoding.UTF8.GetByteCount(sampleContent);字符串requestUri = $"https://xyz.blob.core.windows.net/notes/test567";HttpWebRequest request =(HttpWebRequest)WebRequest.Create(requestUri);现在的字符串= DateTime.UtcNow.ToString("R");request.Method = method;request.ContentType ="text/plain; charset = UTF-8";request.ContentLength = contentLength;request.Headers.Add("x-ms-version"，"2018-01-11");request.Headers.Add("x-ms-date"，现在)；request.Headers.Add("x-ms-blob-type"，"BlockBlob");request.Headers.Add("Authorization"，AuthorizationHeader2(method，now，request，storageAccount，storageKey，containerName，blobName));使用(流requestStream = request.GetRequestStream()){requestStream.Write(Encoding.UTF8.GetBytes(sampleContent)，0，contentLength);}使用(HttpWebResponse resp =(HttpWebResponse)request.GetResponse()){Console.WriteLine(resp.StatusCode.ToString());Console.ReadKey();}}公共静态字符串AuthorizationHeader2(字符串方法，现在的字符串，HttpWebRequest请求，字符串storageAccount，字符串storageKey，字符串containerName，字符串blobName){字符串headerResource = $"x-ms-blob-type:BlockBlob \ nx-ms-date:" + DateTime.UtcNow.ToString("R")+"\ nx-ms-version:2018-01-11";字符串urlResource ="/xyz/notes/test567";字符串stringToSign =方法+"\ n \ n \ n" + request.ContentLength +"\ n \ n" + request.ContentType +"\ n \ n \ n \ n \ n \ n \ n" + headerResource +"\ n" + urlResource;HMACSHA256 hmac =新的HMACSHA256(Convert.FromBase64String(storagekey));字符串签名= Convert.ToBase64String(hmac.ComputeHash(Encoding.UTF8.GetBytes(stringToSign)));;字符串AuthorizationHeader = String.Format("{0} {1}:{2}"，"SharedKey"，storageAccount，签名);返回AuthorizationHeader;}} 

解决方案

您的代码有两个问题:

1. 您使用的服务版本无效.最新的Storage Service REST API版本是 2017-04-17 ，而不是 2018-01-11 .更改该设置后，您将不会遇到400错误(但会出现403错误).

2. 在您的 headerResource 中，您正在生成一个新的日期/时间值，该值与 x-ms-date 中的日期/时间值不同标头.因此，您将得到403错误.因此，基本上您的代码将是:

    字符串headerResource = $"x-ms-blob-type:BlockBlob \ nx-ms-date:" +现在+"\ nx-ms-version:2017-04-17"; 

我做了这两个修复，之后就可以上传数据了.

这是完整的代码:

 公共静态无效UploadBlobWithRestAPI(){字符串storageKey ="ffFJwPXTqyYvRoubNQEti/aQUUMwn41BG3KDtl/yGpG4DR1eKaHRq6Bhbw ==";字符串storageAccount ="xyz";字符串containerName ="notes";字符串blobName ="test567";字符串方法="PUT";string sampleContent ="Lorem ipsum dolor sit amet，consectetur adipiscing elit.Nulla id euismod urna.int contentLength = Encoding.UTF8.GetByteCount(sampleContent);字符串requestUri = $"https://xyz.blob.core.windows.net/notes/test567";HttpWebRequest request =(HttpWebRequest)WebRequest.Create(requestUri);现在的字符串= DateTime.UtcNow.ToString("R");request.Method = method;request.ContentType ="text/plain; charset = UTF-8";request.ContentLength = contentLength;request.Headers.Add("x-ms-version"，"2017-04-17");request.Headers.Add("x-ms-date"，现在)；request.Headers.Add("x-ms-blob-type"，"BlockBlob");request.Headers.Add("Authorization"，AuthorizationHeader2(method，now，request，storageAccount，storageKey，containerName，blobName));使用(流requestStream = request.GetRequestStream()){requestStream.Write(Encoding.UTF8.GetBytes(sampleContent)，0，contentLength);}使用(HttpWebResponse resp =(HttpWebResponse)request.GetResponse()){Console.WriteLine(resp.StatusCode.ToString());Console.ReadKey();}}公共静态字符串AuthorizationHeader2(字符串方法，现在的字符串，HttpWebRequest请求，字符串storageAccount，字符串storageKey，字符串containerName，字符串blobName){字符串headerResource = $"x-ms-blob-type:BlockBlob \ nx-ms-date:" +现在+"\ nx-ms-version:2017-04-17";字符串urlResource ="/xyz/notes/test567";字符串stringToSign =方法+"\ n \ n \ n" + request.ContentLength +"\ n \ n" + request.ContentType +"\ n \ n \ n \ n \ n \ n \ n" + headerResource +"\ n" + urlResource;HMACSHA256 hmac =新的HMACSHA256(Convert.FromBase64String(storagekey));字符串签名= Convert.ToBase64String(hmac.ComputeHash(Encoding.UTF8.GetBytes(stringToSign)));;字符串AuthorizationHeader = String.Format("{0} {1}:{2}"，"SharedKey"，storageAccount，签名);返回AuthorizationHeader;} 

I am trying to communicate with my Container on Azure Blob Storage through a console application. I cannot use the SDK hence REST is my only option. Language is C# with .NET 4.5.2.

I have tried these two codes and both return the same error

Azure rest API put blob On StackOverflow

Azure Blob Storage Part 5(Non-StackOverflow)

The error that I receive is 400 Bad Request

Has anybody else faced the same issue and successfully resolved it?

I have added a CORS rule with (*) for almost everything

The code is an exact duplicate of the two links hence I am not adding it here.

    class Program
   {
    static void Main(string[] args)
    {

        UploadBlobWithRestAPI();
    }

    public static void UploadBlobWithRestAPI()
    {

        string storageKey = "ffFJwPXTqyYvRoubNQEti/aQUUMwn41BG3KDtl/yGpG4DR1eKaHRq6Bhbw==";
        string storageAccount = "xyz";
        string containerName = "notes";
        string blobName = "test567";

        string method = "PUT";
        string sampleContent = "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nulla id euismod urna. Maecenas scelerisque dolor purus, sed ullamcorper ipsum lobortis non. Nulla est justo, sodales at venenatis a, faucibus";
        int contentLength = Encoding.UTF8.GetByteCount(sampleContent);

        string requestUri = $"https://xyz.blob.core.windows.net/notes/test567";

        HttpWebRequest request = (HttpWebRequest)WebRequest.Create(requestUri);

        string now = DateTime.UtcNow.ToString("R");

        request.Method = method;
        request.ContentType = "text/plain; charset=UTF-8";
        request.ContentLength = contentLength;

        request.Headers.Add("x-ms-version", "2018-01-11");
        request.Headers.Add("x-ms-date", now);
        request.Headers.Add("x-ms-blob-type", "BlockBlob");
        request.Headers.Add("Authorization", AuthorizationHeader2(method, now, request, storageAccount, storageKey, containerName, blobName));

        using (Stream requestStream = request.GetRequestStream())
        {
            requestStream.Write(Encoding.UTF8.GetBytes(sampleContent), 0, contentLength);
        }

        using (HttpWebResponse resp = (HttpWebResponse)request.GetResponse())
        {
            Console.WriteLine(resp.StatusCode.ToString());
            Console.ReadKey();
        }

    }

    public static string AuthorizationHeader2(string method, string now, HttpWebRequest request, string storageAccount, 
        string storageKey, string containerName, string blobName)
    {

        string headerResource = $"x-ms-blob-type:BlockBlob\nx-ms-date:"+ DateTime.UtcNow.ToString("R") +"\nx-ms-version:2018-01-11";
        string urlResource = "/xyz/notes/test567";
        string stringToSign =  method + "\n\n\n" + request.ContentLength + 
            "\n\n" + request.ContentType +"\n\n\n\n\n\n\n" + headerResource + "\n" + urlResource;


        HMACSHA256 hmac = new HMACSHA256(Convert.FromBase64String(storageKey));
        string signature = Convert.ToBase64String(hmac.ComputeHash(Encoding.UTF8.GetBytes(stringToSign)));

        String AuthorizationHeader = String.Format("{0} {1}:{2}", "SharedKey", storageAccount, signature);
        return AuthorizationHeader;
    }


}

解决方案

There are two issues with your code:

1. You're using an invalid service version. Latest Storage Service REST API version is 2017-04-17 and not 2018-01-11. Once you change that, you will not get 400 error (but you will get 403 error).

2. In your headerResource, you are generating a new date/time value which would be different than the date/time value in your x-ms-date header. Because of this you will get 403 error. So essentially your code would be:

       string headerResource = $"x-ms-blob-type:BlockBlob\nx-ms-date:" + now + "\nx-ms-version:2017-04-17";
   

I made these two fixes and after that I was able to upload the data.

Here's the complete code:

    public static void UploadBlobWithRestAPI()
    {

        string storageKey = "ffFJwPXTqyYvRoubNQEti/aQUUMwn41BG3KDtl/yGpG4DR1eKaHRq6Bhbw==";
        string storageAccount = "xyz";
        string containerName = "notes";
        string blobName = "test567";

        string method = "PUT";
        string sampleContent = "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nulla id euismod urna. Maecenas scelerisque dolor purus, sed ullamcorper ipsum lobortis non. Nulla est justo, sodales at venenatis a, faucibus";
        int contentLength = Encoding.UTF8.GetByteCount(sampleContent);

        string requestUri = $"https://xyz.blob.core.windows.net/notes/test567";

        HttpWebRequest request = (HttpWebRequest)WebRequest.Create(requestUri);

        string now = DateTime.UtcNow.ToString("R");

        request.Method = method;
        request.ContentType = "text/plain; charset=UTF-8";
        request.ContentLength = contentLength;

        request.Headers.Add("x-ms-version", "2017-04-17");
        request.Headers.Add("x-ms-date", now);
        request.Headers.Add("x-ms-blob-type", "BlockBlob");
        request.Headers.Add("Authorization", AuthorizationHeader2(method, now, request, storageAccount, storageKey, containerName, blobName));

        using (Stream requestStream = request.GetRequestStream())
        {
            requestStream.Write(Encoding.UTF8.GetBytes(sampleContent), 0, contentLength);
        }

        using (HttpWebResponse resp = (HttpWebResponse)request.GetResponse())
        {
            Console.WriteLine(resp.StatusCode.ToString());
            Console.ReadKey();
        }

    }

    public static string AuthorizationHeader2(string method, string now, HttpWebRequest request, string storageAccount,
        string storageKey, string containerName, string blobName)
    {

        string headerResource = $"x-ms-blob-type:BlockBlob\nx-ms-date:" + now + "\nx-ms-version:2017-04-17";
        string urlResource = "/xyz/notes/test567";
        string stringToSign = method + "\n\n\n" + request.ContentLength +
            "\n\n" + request.ContentType + "\n\n\n\n\n\n\n" + headerResource + "\n" + urlResource;


        HMACSHA256 hmac = new HMACSHA256(Convert.FromBase64String(storageKey));
        string signature = Convert.ToBase64String(hmac.ComputeHash(Encoding.UTF8.GetBytes(stringToSign)));

        String AuthorizationHeader = String.Format("{0} {1}:{2}", "SharedKey", storageAccount, signature);
        return AuthorizationHeader;
    }

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