namespace IStation.WebApi
{
    public class HttpContextHelper
    {
        /// <summary>
        /// 获取远程连接IP地址
        /// </summary>
        public static string GetRemoteIpAddress(HttpRequest request)
        {
            var ip = request.Headers["X-Forwarded-For"].FirstOrDefault();
            if (string.IsNullOrEmpty(ip))
            {
                ip = request.HttpContext.Connection.RemoteIpAddress.MapToIPv4().ToString();
            }
            return ip;
        }
    }
}