WebsiteEnvironment.cs

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;

namespace WebApplication27
{
    public static class WebsiteEnvironment
    {
        public static bool IsAvailable
        {
            get { return !string.IsNullOrEmpty(Environment.GetEnvironmentVariable("WEBSITE_SITE_NAME")); }
        }

        public static string InstanceId
        {
            get { return Environment.GetEnvironmentVariable("WEBSITE_INSTANCE_ID"); }
        }

        public static string Name
        {
            get { return Environment.GetEnvironmentVariable("WEBSITE_SITE_NAME"); }
        }

        public static WebsiteComputeMode? ComputeMode
        {
            get { return EnumHelper.Convert<WebsiteComputeMode>(Environment.GetEnvironmentVariable("WEBSITE_COMPUTE_MODE")); }
        }

        public static WebsiteMode? Mode
        {
            get { return EnumHelper.Convert<WebsiteMode>(Environment.GetEnvironmentVariable("WEBSITE_SITE_MODE")); }
        }

        public static WebsiteSku? Sku
        {
            get { return EnumHelper.Convert<WebsiteSku>(Environment.GetEnvironmentVariable("WEBSITE_SKU")); }
        }

        public static IDictionary<string, string> AppSettings
        {
            get { return EnvironmentHelper.GetVariables("APPSETTING_"); }
        }

        public static IDictionary<string, string> MySqlConnections
        {
            get { return EnvironmentHelper.GetVariables("MYSQLCONNSTR_"); }
        }

        public static IDictionary<string, string> SqlServerConnections
        {
            get { return EnvironmentHelper.GetVariables("SQLAZURECONNSTR_"); }
        }

        public class EnvironmentHelper
        {
            public static IDictionary<string, string> GetVariables(string prefix)
            {
                return Environment.GetEnvironmentVariables()
                                  .Cast<DictionaryEntry>()
                                  .Where(p => ((string)p.Key).StartsWith(prefix))
                                  .ToDictionary(p => ((string)p.Key).Substring(prefix.Length), p => (string)p.Value);
            }
        }

        public class EnumHelper
        {
            public static TEnum? Convert<TEnum>(string name) where TEnum : struct
            {
                TEnum result;

                if (Enum.TryParse(name, true, out result))
                {
                    return result;
                }

                return null;
            }
        }
    }

    public enum WebsiteComputeMode
    {
        Shared,
        Dedicated,
    }

    public enum WebsiteMode
    {
        Limited,
        Basic
    }

    public enum WebsiteSku
    {
        Free,
        Shared,
        Basic,
        Standard,
    }
}