WebsiteEnvironment.cs

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

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

        public static bool Is64BitPlatform => Environment.Is64BitProcess;

        public static string InstanceId => Environment.GetEnvironmentVariable("WEBSITE_INSTANCE_ID");

        public static string ShortInstanceId => InstanceId?.Substring(0, 6);

        public static string SiteName => Environment.GetEnvironmentVariable("WEBSITE_SITE_NAME");

        public static string HostName => Environment.GetEnvironmentVariable("WEBSITE_HOSTNAME");

        public static string IisSiteName => Environment.GetEnvironmentVariable("WEBSITE_IIS_SITE_NAME");

        public static string SlotName => Environment.GetEnvironmentVariable("WEBSITE_SLOT_NAME");

        public static string OwnerName = Environment.GetEnvironmentVariable("WEBSITE_OWNER_NAME");

        public static bool AuthEnabled => EnvironmentHelper.GetBoolean("WEBSITE_AUTH_ENABLED");

        public static bool HttpLoggingEnabled => EnvironmentHelper.GetBoolean("WEBSITE_HTTPLOGGING_ENABLED");

        public static bool ScmAlwaysOnEnabled => EnvironmentHelper.GetBoolean("WEBSITE_SCM_ALWAYS_ON_ENABLED");

        public static bool LocalCacheEnabled => EnvironmentHelper.GetBoolean("WEBSITE_LOCALCACHE_ENABLED");

        public static bool ScmSeparateStatus => EnvironmentHelper.GetBoolean("WEBSITE_SCM_SEPARATE_STATUS");

        public static WebsiteComputeMode? ComputeMode => EnvironmentHelper.GetEnum<WebsiteComputeMode>("WEBSITE_COMPUTE_MODE");

        public static WebsiteSiteMode? SiteMode => EnvironmentHelper.GetEnum<WebsiteSiteMode>("WEBSITE_SITE_MODE");

        public static WebsiteSku? Sku => EnvironmentHelper.GetEnum<WebsiteSku>("WEBSITE_SKU");

        public static IDictionary<string, string> AppSettings => EnvironmentHelper.GetVariables("APPSETTING_");

        public static IDictionary<string, string> MySqlConnections => EnvironmentHelper.GetVariables("MYSQLCONNSTR_");

        public static IDictionary<string, string> SqlServerConnections => EnvironmentHelper.GetVariables("SQLAZURECONNSTR_");

        internal class EnvironmentHelper
        {
            internal static bool GetBoolean(string name)
            {
                bool result;

                return bool.TryParse(Environment.GetEnvironmentVariable(name), out result) && result;
            }

            internal static TEnum? GetEnum<TEnum>(string name) where TEnum : struct
            {
                return EnumHelper.Convert<TEnum>(Environment.GetEnvironmentVariable(name));
            }

            internal 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);
            }
        }

        internal class EnumHelper
        {
            internal 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 WebsiteSiteMode
        {
            Limited,
            Basic
        }

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