Simplest c# sample to call azure storage api

Simplest c# sample to call azure storage api

2018/10/27 Azure Programming 1

Finally called the azure storage api, stucked for one hour in library. There is a / in + “/{0}/\ncomp:list”, Account);

Remember two things:
1. If you are calling to azure management api, you need a cert. Read https://docs.microsoft.com/en-us/azure/cloud-services/cloud-services-certs-create and https://docs.microsoft.com/en-us/azure/cloud-services/cloud-services-configure-ssl-certificate-portal
2. If you are calling azure storage api, you just need a key, no cert if needed.

using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;
using System.Xml.Linq;

namespace AzureStorageRestFulAPI
{
    class Program
    {
        static string subscriptionID = @"f6e7edac-3976-4289-8dc2-4235819a5725173";
        static string Key = @"sGQyidifHtuV6aLLvc7pqs1231231vPO6UohIEl2BCQWdFLBID91gKNwxMjbmLtsE4DnpxZs6QKNQl//vPEFrg==";
        static string Account = @"quantr1";

        static void Main(string[] args)
        {
            listContainers();
            //createNewStorageAccount("My new storage account from c#");
            Console.Read();
        }

        private static String SignThis(string StringToSign, string Key, string Account)
        {

            String signature = string.Empty;
            byte[] unicodeKey = Convert.FromBase64String(Key);
            using (HMACSHA256 hmacSha256 = new HMACSHA256(unicodeKey))
            {
                Byte[] dataToHmac = System.Text.Encoding.UTF8.GetBytes(StringToSign);
                signature = Convert.ToBase64String(hmacSha256.ComputeHash(dataToHmac));
            }

            String authorizationHeader = String.Format(
                System.Globalization.CultureInfo.InvariantCulture,
                "{0} {1}:{2}",
                "SharedKey",
                Account,
                signature);
            Console.WriteLine("\n authorizationHeader " + authorizationHeader);
            return authorizationHeader;
        }

        static string formatXml(string xml)
        {
            try
            {
                XDocument doc = XDocument.Parse(xml);
                return doc.ToString();
            }
            catch (Exception)
            {
                // Handle and throw if fatal exception here; don't just ignore them
                return xml;
            }
        }
        static void listContainers()
        {
            DateTime dt = DateTime.UtcNow;
            string StringToSign = String.Format("GET\n"
                + "\n" // content encoding
                + "\n" // content language
                + "\n" // content length
                + "\n" // content md5
                + "\n" // content type
                + "\n" // date
                + "\n" // if modified since
                + "\n" // if match
                + "\n" // if none match
                + "\n" // if unmodified since
                + "\n" // range
                + "x-ms-date:" + dt.ToString("R") + "\n" // headers
                + "x-ms-version:2014-02-14\n"
                + "/{0}/\ncomp:list", Account);

            Console.WriteLine("\n StringToSign " + StringToSign);
            string auth = SignThis(StringToSign, Key, Account);
            string method = "GET";
            string urlPath = string.Format("https://{0}.blob.core.windows.net/?comp=list", Account);
            Uri uri = new Uri(urlPath);
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri);
            request.Method = method;
            request.Headers.Add("Authorization", auth);
            request.Headers.Add("x-ms-date", dt.ToString("R"));
            request.Headers.Add("x-ms-version", "2014-02-14");
            Console.WriteLine("auth=" + auth);

            using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
            {
                using (StreamReader reader = new StreamReader(response.GetResponseStream()))
                {
                    string text = reader.ReadToEnd();
                    Console.WriteLine("\n" + formatXml(text));
                }
            }
        }

        static void createNewStorageAccount(string storageAccount)
        {
            DateTime dt = DateTime.UtcNow;
            string method = "POST";
            string urlPath = string.Format("https://management.core.windows.net/{0}/services/storageservices", subscriptionID);
            Console.WriteLine("urlPath=" + urlPath);
            Uri uri = new Uri(urlPath);
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri);
            request.Method = method;
            request.Headers.Add("x-ms-date", dt.ToString("R"));
            request.Headers.Add("x-ms-version", "2014-02-14");

            var postData = @"<?xml version=""1.0"" encoding=""utf-8""?>
            <CreateStorageServiceInput xmlns=""http://schemas.microsoft.com/windowsazure"">
                <ServiceName>{0}</ServiceName>
                <Description>Testing description</Description>
                <Label>
                    Testing Label
                </Label>
                <Location>Southeast Asia</Location>
            </CreateStorageServiceInput>";
            var data = Encoding.ASCII.GetBytes(String.Format(postData, "fuckstorageaccount"));

            request.ContentType = "application/xml";
            request.ContentLength = data.Length;

            //Console.WriteLine("auth=" + auth);

            using (var stream = request.GetRequestStream())
            {
                stream.Write(data, 0, data.Length);
            }

            using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
            {
                using (StreamReader reader = new StreamReader(response.GetResponseStream()))
                {
                    string text = reader.ReadToEnd();
                    Console.WriteLine("\n" + formatXml(text));
                }
            }
        }
    }
}


read count : 28

One Response

  1. daxi says:

    学无止境,认真拜读!

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