using Microsoft.AspNetCore.Http;

using Microsoft.AspNetCore.Mvc.ModelBinding;

using System.Collections.Generic;

using System.Linq;

namespace WebApi.Controllers

{

    /// <summary>

    /// 扩展类

    /// </summary>

    public static class Extension

    {

        /// <summary>

        /// 获取客户Ip

        /// </summary>

        /// <param name="context"></param>

        /// <returns></returns>

        public static string GetClientUserIp(this HttpContext context)

        {

            var ip = context.Request.Headers["X-Forwarded-For"].FirstOrDefault();

            if (string.IsNullOrEmpty(ip))

            {

                ip = context.Connection.RemoteIpAddress.ToString();

            }

            return ip;

        }

    }

}

/// <summary>

        ///

        /// </summary>

        /// <param name="app"></param>

        /// <param name="env"></param>

        /// <param name="loggerFactory"></param>

        public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)

        {

            #region 解决Ubuntu Nginx 代理不能获取IP问题

            app.UseForwardedHeaders(new ForwardedHeadersOptions

            {

                ForwardedHeaders = ForwardedHeaders.XForwardedFor | ForwardedHeaders.XForwardedProto

            });

            #endregion

        }