灰色の残りのAPIはブロブを入れます

Question

私はAzureの残りのAPIとブロブを入れようとしています。私は "GET"リクエストを成功させましたが、 "PUT"リクエストに問題がありました。私は "PUT"リクエストを作成しようとすると、私は404error（私はstackoverflowで同じ投稿を見たことがあるが、それは私を助けてくれませんでした）.i私が使用しているMessageSignatureが正しい（私はMessageSignaturePutを試みたが、didntの仕事）。助言がありますか？

public void UploadBlobWithRestAPI(string uri, DateTime now) 
{ 
    string blobName = "test.txt"; 
    string method = "PUT"; 
    string sampleContent = "This is sample text."; 
    int contentLength = Encoding.UTF8.GetByteCount(sampleContent); 
    string queryString = (new Uri(uri)).Query; 
    string blobContainerUri = uri.Substring(0, uri.Length - queryString.Length); 
    string requestUri = string.Format(CultureInfo.InvariantCulture, "{0}/{1}{2}", blobContainerUri, blobName, queryString); 
    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(requestUri); 
    string nnow = now.ToString("R", System.Globalization.CultureInfo.InvariantCulture); 

    request.Method = method; 
    request.Headers.Add("x-ms-version", "2015-02-21"); 
    request.Headers.Add("x-ms-date", nnow); 
    request.ContentType = "text/plain; charset=UTF-8"; 
    request.Headers.Add("x-ms-blob-type", "BlockBlob"); 
    request.ContentLength = contentLength; 

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

    request.Headers.Add("Authorization", AuthorizationHeader(method, now, request, "", "")); 

    using (HttpWebResponse resp = (HttpWebResponse)request.GetResponse()) 
    { 
     MessageBox.Show(resp.StatusCode.ToString()); 
    } 
} 


public string AuthorizationHeader(string method, DateTime now, HttpWebRequest request, 
     string ifMatch = "", string md5 = "") 
{ 
    string MessageSignature; 
    string StorageKey = "xxx"; 
    string StorageAccount = "upgradedevstorage"; 

    MessageSignature = String.Format("{0}\n\n\n{1}\n{5}\n\n\n\n{2}\n\n\n\n{3}{4}", 
     method, 
     (method == "GET" || method == "HEAD") ? String.Empty : request.ContentLength.ToString(), 
     ifMatch, 
     GetCanonicalizedHeaders(request), 
     GetCanonicalizedResource(request.RequestUri, StorageAccount), 
     md5 
     ); 

??? //string MessageSignaturePut= String.Format("{0}\n\n{1}\n\n{2}{3}", 
    // method, 
    // "text/plain; charset=UTF-8", 
    // GetCanonicalizedHeaders(request), 
    // GetCanonicalizedResource(request.RequestUri, StorageAccount) 
    // ); 

    byte[] SignatureBytes = System.Text.Encoding.UTF8.GetBytes(MessageSignature); 

    System.Security.Cryptography.HMACSHA256 SHA256 = 
     new System.Security.Cryptography.HMACSHA256(Convert.FromBase64String(StorageKey)); 

    string signature = Convert.ToBase64String(SHA256.ComputeHash(SignatureBytes)); 

    string AuthorizationHeader = "SharedKey " + StorageAccount 
     + ":" + Convert.ToBase64String(SHA256.ComputeHash(SignatureBytes)); 

    return AuthorizationHeader; 
} 

Answer 1

次のコードスニペットを考慮してください。これはあなたのために働くはずです。

void UploadBlobWithRestAPI() { 

    string storageKey = "<your access key here>"; 
    string storageAccount = "<your storage account name here>";  
    string containerName = "<your container name here>"; 
    string blobName = "test.txt"; 

    string method = "PUT"; 
    string sampleContent = "This is sample text."; 
    int contentLength = Encoding.UTF8.GetByteCount(sampleContent); 

    string requestUri = $"https://{storageAccount}.blob.core.windows.net/{containerName}/{blobName}"; 

    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", "2015-12-11"); 
    request.Headers.Add("x-ms-date", now); 
    request.Headers.Add("x-ms-blob-type", "BlockBlob"); 
    request.Headers.Add("Authorization", AuthorizationHeader(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()) { 
     MessageBox.Show(resp.StatusCode.ToString()); 
    } 

} 

public string AuthorizationHeader(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:2015-12-11"; 
    string urlResource = $"/{storageAccount}/{containerName}/{blobName}"; 
    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; 
} 

そして、次のようにフィドラーで撮影したトラフィック：あなたが共有アクセス署名（SAS）を使用しているので、あなたは認証ヘッダーを必要としない