Synnefo » Pithos MS Client

using System;

using System.Security.Cryptography;

using System.Text;

using Hammock.Authentication.OAuth;

namespace Hammock.Extensions

{

    internal static class OAuthExtensions

    {

        public static string ToRequestValue(this OAuthSignatureMethod signatureMethod)

        {

            var value = signatureMethod.ToString().ToUpper();

            var shaIndex = value.IndexOf("SHA1");

            return shaIndex > -1 ? value.Insert(shaIndex, "-") : value;

        }

        public static OAuthSignatureMethod FromRequestValue(this string signatureMethod)

        {

            switch(signatureMethod)

            {

                case "HMAC-SHA1":

                    return OAuthSignatureMethod.HmacSha1;

                case "RSA-SHA1":

                    return OAuthSignatureMethod.RsaSha1;

                default:

                    return OAuthSignatureMethod.PlainText;

            }

        }

        public static string HashWith(this string input, HashAlgorithm algorithm)

        {

            var data = Encoding.UTF8.GetBytes(input);

            var hash = algorithm.ComputeHash(data);

            return Convert.ToBase64String(hash);

        }

    }

}