ASP.NET Core HttpContext.Current #aspnetcore

aspnetcore-httpcontext-current.cs

using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.DependencyInjection;

namespace Common
{
    public static class Services
    {
        public static bool IsWebSite { get; set; }

        private static ServiceProvider serviceProvider;

        public static void Init(bool isWebsite)
        {
            IsWebSite = isWebsite;

            if (IsWebSite)
            {
                var services = new ServiceCollection();
                services.AddSingleton<IHttpContextAccessor, HttpContextAccessor>();
                services.AddTransient<IHttpContextWrapper, HttpContextWrapper>();
                serviceProvider = services.BuildServiceProvider();
            }
        }

        public static void Uninit()
        {
            serviceProvider?.Dispose();
        }

        public static T GetService<T>()
        {
            if (!IsWebSite)
                return default;
            return serviceProvider.GetService<T>();
        }

        public static HttpContext GetHttpContext(bool ignoreError = false)
        {
            var httpContextWrapper = Services.GetService<IHttpContextWrapper>();
            var httpContext = httpContextWrapper?.HttpContext;

            if (httpContext == null && !ignoreError)
                throw new Exception("Failed to get HttpContext");

            return httpContext;
        }
    }

    public interface IHttpContextWrapper
    {
        HttpContext HttpContext { get; }
    }

    public class HttpContextWrapper : IHttpContextWrapper
    {
        private readonly IHttpContextAccessor _httpContextAccessor;

        public HttpContext HttpContext { get { return _httpContextAccessor.HttpContext; } }

        public HttpContextWrapper(IHttpContextAccessor httpContextAccessor)
        {
            _httpContextAccessor = httpContextAccessor;
        }
    }
}