Extensions.cs

// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;

namespace Microsoft.Templates.Core.Extensions
{
    public static class TaskExtensions
    {
        public static void FireAndForget(this System.Threading.Tasks.Task t)
        {
        }
    }

    public static class StringExtensions
    {
        public static string Obfuscate(this string data)
        {
            string result = data;
            byte[] b64data = Encoding.UTF8.GetBytes(data);

            using (MD5 md5Hash = MD5.Create())
            {
                result = GetHash(md5Hash, b64data);
            }
            return result.ToUpper();
        }

        public static string ObfuscateSHA(this string data)
        {
            string result = data;
            byte[] b64data = Encoding.UTF8.GetBytes(data);

            using (SHA512 sha2 = SHA512.Create())
            {
                result = GetHash(sha2, b64data);
            }
            return result.ToUpper();
        }

        static string GetHash(HashAlgorithm md5Hash, byte[] inputData)
        {
            byte[] data = md5Hash.ComputeHash(inputData);

            StringBuilder sBuilder = new StringBuilder();

            for (int i = 0; i < data.Length; i++)
            {
                sBuilder.Append(data[i].ToString("x2"));
            }

            return sBuilder.ToString();
        }
    }

    public static class VersionExtensions
    {
        public static bool IsDefault(this Version v)
        {
            return (v.Major + v.Minor + v.Build + v.Revision) == 0;
        }
    }
}