C# data URI

file.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Caching;
using System.IO;
using Umbraco.Core.Models;
using Umbraco.Core.Logging;

/// <summary>
/// Language switcher helper methods
/// </summary>
namespace PhCreative.BasePackage.Helpers
{
    public static class LanguageSwitcherHelp
    {
        /// <summary>
        /// Returns the data URL of an image
        /// </summary>
        /// <param name="media">Media IPublishedContent</param>
        /// <returns>String with the data URI</returns>
        public static string GetDataUrl(this IPublishedContent media)
        {
            string imgFile = null;

            if (!String.IsNullOrEmpty(media.Url))
            {
                imgFile = System.Web.HttpContext.Current.Server.MapPath(media.Url);
            }

            if (String.IsNullOrEmpty(imgFile) || !System.IO.File.Exists(imgFile))
            {
                return String.Empty;
            }

            try
            {
                string dataUri = "data:image/" + Path.GetExtension(imgFile).Replace(".", "") + ";base64," + Convert.ToBase64String(System.IO.File.ReadAllBytes(imgFile));
                return dataUri;
            }
            catch (System.IO.IOException ioex)
            {
                LogHelper.Error(typeof(LanguageSwitcherHelp), "Error getting data URI for " + media.Id, ioex);
                return String.Empty;
            }
         
        }
    }
}