yz_server/Server/Controllers/OpenManagement/OpenController.cs

using Common.Models.UnqTables;
using CsharpHttpHelper;
using Newtonsoft.Json;
using Server.MyClass.Class;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Web.Http;
using Common.DbExtends.Extends;
using Common.Models.Enums;
using Common.Models.JsonModels;

namespace Server.Controllers.OpenManagement
{
    public class OpenController:DefaultController
    {

        public class Slider
        {
            public bool sliderSuccessed { get; set; }

            public int y { get; set; }

            public string src { get; set; }

            public bool sliderVisible { get; set; }

            public int sliderMx { get; set; }
        }
        /// <summary>
        /// 登录接口
        /// </summary>
        /// <returns></returns>
        [HttpPost, ErrorFilter]
        public WebResult Login() 
        {
            var Username = GetString("Username",true);
            var Password = GetString("Password",true);
            var user = Db.Queryable<Staff>().Where(f=>f.Username == Username).First();
            if (user == null || Password != user.Password)
            {
                return PutData("登录失败，用户名或密码错误！");
            }
            if (Client.OnlineUsers.ContainsKey(user.Id)) 
            {
                if (!Client.OnlineUsers.TryRemove(user.Id, out var oldUser))
                {
                    return PutError;
                }
            }
            var session = new UserSession(user);
            session.IsCreator = user.IsCreator;
            if (!Client.OnlineUsers.TryAdd(user.Id, session))
            {
                return PutError;
            }
            
            return PutData(session);
        }
        /// <summary>
        /// 背景图
        /// </summary>
        private static readonly List<string> bgs = new List<string>() { "/imgs/clouds.jpg", "/imgs/leafs.jpg", "/imgs/moon.jpg", "/imgs/mountains.jpg", "/imgs/rocks.jpg" };
        /// <summary>
        /// 登录接口
        /// </summary>
        /// <returns></returns>
        [HttpPost, ErrorFilter]
        public WebResult GetCaptch()
        {
            Random random = new Random();

            var slider = new Slider()
            {
                sliderSuccessed = false,
                sliderMx = random.Next(130, 230),
                y = random.Next(10,99),
                sliderVisible = true,
                src = bgs[random.Next(0,bgs.Count - 1)]
            };
            var base64Str = HttpExtend.StringToBase64String(JsonConvert.SerializeObject(slider));
            var Id = Guid.NewGuid().ToString("N");
            Client.Cache.Add(Id, slider, 60*2);
            return PutData(new {Id = Id, Data = base64Str });
        }

        /// <summary>
        /// 登录接口
        /// </summary>
        /// <returns></returns>
        [HttpPost, ErrorFilter]
        public WebResult CheckCaptch()
        {
            var Id = GetString("Id", true);
            var time = GetDouble("Time", true);
            var X = GetInt("X", true);
            try
            {
                var target = Client.Cache.Get<Slider>(Id);
                var min = target.sliderMx - 10;
                var max = target.sliderMx + 10;
                time = time / 1000;
                if (X > min && X < max)
                {
                    if (time < 0.5)
                    {
                        return PutData("哎呀，手速太快啦");
                    }
                    else if (time > 5)
                    {
                        return PutData("哎呀，手速太慢啦");
                    }
                    else
                    {
                        return PutSuccess;
                    }
                }
                else
                {
                    return PutData("出现错误");
                }
            }
            catch (Exception )
            {
                return PutError;
            }
        }

        /// <summary>
        /// 退出登录
        /// </summary>

        [HttpPost, ErrorFilter]
        public WebResult Logout() 
        {
            if (Session != null) 
            {
                if (!Client.OnlineUsers.TryRemove(Session.Uid, out _))
                {
                    
                    return PutError;
                }
            }
            return PutSuccess;
        }
        /// <summary>
        /// 获取网站信息
        /// </summary>
        /// <returns></returns>
        [HttpPost, ErrorFilter]
        public WebResult GetWebInfo()
        {
            return PutData(Db.GetMapValue<WebInfo>("WebInfo", () => null));
        }

    }
}