TEAMModelOS/TEAMModelOS.Extension/IES.Exam/IES.ExamServer/Controllers/IndexController.cs

using IES.ExamServer.Models;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Caching.Memory;
using System.Diagnostics;
using System.Text.Json.Nodes;
using System.Text.Json;
using IES.ExamServer.Helper;
using System.DrawingCore.Imaging;
using System.DrawingCore;
using System.IdentityModel.Tokens.Jwt;
using IES.ExamServer.Services;
using IES.ExamServer.DI;
using IES.ExamLib.Models;
using IES.ExamServer.Helpers;

namespace IES.ExamServer.Controllers
{
    [ApiController]
    [Route("index")]
  
    public class IndexController : BaseController
    {
        private readonly IConfiguration _configuration;
        private readonly IHttpClientFactory _httpClientFactory;
        private readonly IMemoryCache _memoryCache;
        private readonly ILogger<IndexController> _logger;
        private readonly CenterServiceConnectionService _connectionService;
        private readonly LiteDBFactory _liteDBFactory;
        public IndexController(ILogger<IndexController> logger, IConfiguration configuration, IHttpClientFactory httpClientFactory, IMemoryCache memoryCache,CenterServiceConnectionService connectionService, LiteDBFactory liteDBFactory)
        {
            _logger = logger;
            _configuration=configuration;
            _httpClientFactory=httpClientFactory;
            _memoryCache=memoryCache;
            _connectionService=connectionService;
            _liteDBFactory=liteDBFactory;
        }
        [HttpPost("generate-certificate")]
        public async Task<IActionResult> GenerateCertificate(JsonNode json) 
        {
            try {
                ServerDevice serverDevice = _memoryCache.Get<ServerDevice>(Constant._KeyServerDevice);
                if (serverDevice!=null && serverDevice.networks.IsNotEmpty())
                {
                    string mac = $"{json["mac"]}";
                    var network = serverDevice.networks.Find(x => mac.Equals(x.mac));
                    if (network!=null)
                    {
                        string pathBat = Path.Combine(Directory.GetCurrentDirectory(), "Configs", "template", "certificate.bat");
                        string pathCer = Path.Combine(Directory.GetCurrentDirectory(), "Configs", "template" ,"certificate.cer");
                        string text = await System.IO.File.ReadAllTextAsync(pathBat);
                        text = text.Replace("192.168.8.132", network.ip);
                        string pathCertificateBat = Path.Combine(Directory.GetCurrentDirectory(), "wwwroot", "package", "certificate.bat");
                        await System.IO.File.WriteAllTextAsync(pathCertificateBat, text);
                        string pathCertificateCer = Path.Combine(Directory.GetCurrentDirectory(), "wwwroot", "package", "certificate.cer");
                        System.IO.File.Copy(pathCer, pathCertificateCer);
                        return Ok(new { code = 200, msg = "生成成功。", bat = "package/certificate.bat", cer = "package/certificate.cer" });
                    }
                    else
                    {
                        msg="未找到匹配的网卡设备。";
                    }
                }
                else
                {
                    msg="服务端设备未找到，或网卡设备不存在。";
                }
            } catch (Exception ex) 
            {
                _logger.LogError($"生成证书和自定义域名映射脚本错误。{ex.Message},{ex.StackTrace}");
                msg=$"服务端错误，{ex.Message}";
            }
            return Ok(new { code = 400, msg = msg });
        }
        [HttpPost("list-schools")]
        public async Task<IActionResult> ListSchool(JsonNode json) 
        {
            string filePath = Path.Combine(Directory.GetCurrentDirectory(), "wwwroot", "package", "schools.json");
            string schoolText = await System.IO.File.ReadAllTextAsync(filePath);
            JsonNode? node = schoolText.ToObject<JsonNode>();
            return Ok(new {code =200, schools= node?["schools"] });
        }
        [HttpPost("bind-school")]
        public async Task<IActionResult> BindSchool(JsonNode json) 
        {
            string id=$"{json["id"]}";
            string name= $"{json["name"]}";
            string fp = $"{json["fp"]}";
            if (!string.IsNullOrWhiteSpace(id) && !string.IsNullOrWhiteSpace(name) && !string.IsNullOrWhiteSpace(fp))
            {
                string filePath = Path.Combine(Directory.GetCurrentDirectory(), "wwwroot", "package", "schools.json");
                string schoolText = await System.IO.File.ReadAllTextAsync(filePath);
                List<School>? schools = schoolText.ToObject<JsonNode>()?["schools"]?.ToObject<List<School>>();
                School? school = schools?.Find(x => id.Equals(x.id)  && name.Equals(x.name));
                if (school!=null)
                {
                    _liteDBFactory.GetLiteDatabase().GetCollection<School>().DeleteAll();
                    _liteDBFactory.GetLiteDatabase().GetCollection<School>().Upsert(school);
                    IEnumerable<School> schoolsDb = _liteDBFactory.GetLiteDatabase().GetCollection<School>().FindAll();
                    School? schoolDb = schools?.FirstOrDefault();
                    _memoryCache.TryGetValue(Constant._KeyServerDevice, out ServerDevice? server);
                    if (server!=null)
                    {
                        server.school = school;
                    }
                    string ip = GetIP();
                    var device = IndexService.GetDeviceInit(HttpContext, $"{fp}", ip, _memoryCache);
                    int hybrid = 0;
                    _memoryCache.Set(Constant._KeyServerDevice, server);
                    _memoryCache.TryGetValue(Constant._KeyServerCenter, out JsonNode? data);
                    _memoryCache.TryGetValue(Constant._KeyServerDevice, out server);
                    if (data!=null)
                    {
                        hybrid=1;
                        msg="云端服务连接成功！";
                        return Ok(new { code = 200, msg, data = new { hybrid, device, centerUrl = data["centerUrl"], region = data["region"], ip = data["ip"], nowtime = DateTimeOffset.Now.ToUnixTimeMilliseconds(), server } });
                    }
                    else
                    {
                        msg="云端服务未连接！";
                        return Ok(new { code = 200, msg, data = new { hybrid, device, centerUrl = "", region = "局域网·内网", ip = ip, nowtime = DateTimeOffset.Now.ToUnixTimeMilliseconds(), server } });
                    }
                }
                else
                {
                    return Ok(new { code = 400, msg = "绑定失败！" });
                }
            }
            else {
                return Ok(new { code = 400, msg = "参数错误！" });
            }
        }
        [HttpPost("device")]
        public IActionResult Device(JsonElement json )
        {
            try
            {
                string ip=   GetIP();
                json.TryGetProperty("fp", out JsonElement fp);
                var device = IndexService.GetDeviceInit(HttpContext, $"{fp}", ip, _memoryCache);
                int hybrid = 0, notify = 0 ;
                _memoryCache.TryGetValue(Constant._KeyServerCenter, out JsonNode? data);
                _memoryCache.TryGetValue(Constant._KeyServerDevice, out ServerDevice? server);
                if (_connectionService.notifyIsConnected)
                { 
                    notify=1;
                }
                if (_connectionService.centerIsConnected)
                {
                    hybrid=1;
                }
                msg="服务端检测成功！";
                return Ok(new { code = 200, msg, data = new {
                    notify,
                    hybrid,
                    device,
                    centerUrl = hybrid==1 ? _connectionService.centerUrl : "",
                    notifyUrl = notify==1 ? _connectionService.notifyUrl : "",
                    region = data?["region"],
                    ip = data!=null ? data?["ip"] : ip,
                    nowtime = DateTimeOffset.Now.ToUnixTimeMilliseconds(),
                    server
                } });
            }
            catch (Exception ex)
            {
                code=500;
                msg="服务端异常！";
            }
            return Ok(new { code, msg });
        }


        /**
        {
            "type":"sms",//qrcode二维码扫码登录：randomCode必传；  sms 短信验证登录：randomCode必传，mobile必传
            "randomCode",
            "mobile":"1528377****"
        }
        **/
        /// <summary>
        /// 登录验证
        /// </summary>
        /// <param name="randomCode"></param>
        /// <returns></returns>
        [HttpPost("login-check")]
        public async Task<IActionResult> LoginCheck(JsonNode json)
        {
            try
            {
                var type = json["type"];
                string? CenterUrl = _configuration.GetValue<string>("ExamServer:CenterUrl");
                if (!string.IsNullOrWhiteSpace($"{type}"))
                {
                    TmdidImplicit? token = null;
                    string x_auth_token = string.Empty;
                    List<School>? schools = null;
                    JsonNode? jsonNode = null;
                    long time = DateTimeOffset.Now.ToUnixTimeMilliseconds();
                    _memoryCache.TryGetValue(Constant._KeyServerDevice, out ServerDevice? server);
                    School? school = null;
                    if (server!=null) 
                    {
                    school = server.school;
                    }
                    switch (true)
                    {
                        //跳过忽略，但是仍然要以访客身份登录
                        case bool when $"{type}".Equals(ExamConstant.ScopeVisitor):
                            {
                                string id = $"{DateTimeOffset.Now.ToUnixTimeSeconds()}";
                                string name = $"{school?.name}教师-{Random.Shared.Next(100, 999)}";
                                x_auth_token = JwtAuthExtension.CreateAuthToken("www.teammodel.cn",id ,name,picture: school?.picture
                                    , ExamConstant.JwtSecretKey,ExamConstant.ScopeVisitor,8,schoolID:school?.id,new string[] { "visitor" }, expire: 1);
                                //  _memoryCache.Set($"Teacher:{id}", new Teacher { id = id, name = $"{name}", implicit_token = token, picture = null, schools = schools, x_auth_token = x_auth_token });
                                _liteDBFactory.GetLiteDatabase().GetCollection<Teacher>().Upsert(new Teacher { id = id, name = $"{name}", implicit_token = token, picture = null, schools = schools, x_auth_token = x_auth_token,loginTime=time });
                                return Ok(new { code = 200,x_auth_token = x_auth_token });
                            }
                        case bool when $"{type}".Equals("qrcode"):
                            {
                                string randomCode = $"{json["randomCode"]}";
                                System.Net.ServicePointManager.SecurityProtocol = System.Net.SecurityProtocolType.Tls12;
                                var rc= _memoryCache.Get<string>($"Login:ExamServer:{school?.id}:{randomCode}");
                                if (!string.IsNullOrWhiteSpace(rc))
                                {
                                    var response = await _httpClientFactory.CreateClient().GetAsync($"{CenterUrl}/core/qrcode/check?randomcode={randomCode}&school={school?.id}&client=ExamServer");
                                    if (response.IsSuccessStatusCode)
                                    {
                                        string content = await response.Content.ReadAsStringAsync();
                                        if (!string.IsNullOrWhiteSpace(content))
                                        {
                                            jsonNode = content.ToObject<JsonNode>();
                                        }
                                        else
                                        {
                                            code=400;
                                            msg="随机码验证失败";
                                        }
                                    }
                                    else
                                    {
                                        code=400;
                                        msg="随机码验证错误";
                                    }
                                }
                                else
                                {
                                    code=400;
                                    msg="二维码过期";
                                }
                                break;
                            }
                        case bool when $"{type}".Equals("smspin"):
                            {
                                string pin_code = $"{json["pin_code"]}";
                                string account = $"{json["account"]}";
                                var response = await _httpClientFactory.CreateClient().PostAsJsonAsync($"{CenterUrl}/core/sendsms/check", new { pin_code, account,school=school?.id });
                                if (response.IsSuccessStatusCode)
                                {
                                    string content = await response.Content.ReadAsStringAsync();
                                    if (!string.IsNullOrWhiteSpace(content))
                                    {
                                        jsonNode = content.ToObject<JsonNode>();
                                    }
                                    else
                                    {
                                        code=400;
                                        msg="短信验证返回结果为空";
                                    }
                                }
                                else
                                {
                                    code=400;
                                    msg="短信验证错误";
                                }
                                break;
                            }

                    }
                    if (jsonNode != null  && $"{jsonNode["code"]}".Equals("200"))
                    {
                        token =jsonNode["implicit_token"]?.ToObject<TmdidImplicit>(); 
                        x_auth_token = $"{jsonNode["x_auth_token"]}";
                        schools =jsonNode["schools"]?.ToObject<List<School>>(); 
                        var jwt = new JwtSecurityToken(token?.id_token);
                        var id = jwt.Payload.Sub;
                        jwt.Payload.TryGetValue("name", out object? name);
                        jwt.Payload.TryGetValue("picture", out object? picture);
                        //_memoryCache.Set($"Teacher:{id}", new Teacher { id=id, name=$"{name}", implicit_token= token, picture=$"{picture}", schools=schools, x_auth_token=x_auth_token });
                        _liteDBFactory.GetLiteDatabase().GetCollection<Teacher>().Upsert(new Teacher { id=id, name=$"{name}", implicit_token= token, picture=$"{picture}", schools=schools, x_auth_token=x_auth_token ,loginTime=time });
                        return Ok(new { code=200,/* implicit_token = token, schools = schools , */ x_auth_token = x_auth_token });
                    }
                    else
                    {
                        code=400;
                        msg="验证失败";
                    }
                }
                else
                {
                    code=400;
                    msg="参数错误";
                }
            }
            catch (Exception ex)
            {
                code=500;
                msg="异常错误";
            }
            return Ok(new { code = code,msg });
        }
        /*
     
         
         
         */
        /// <summary>
        /// 登录模式初始化
        /// </summary>
        /// <returns></returns>
        [HttpPost("login-init")]
        public async Task<IActionResult> LoginInit(JsonNode json)
        {
            var type = json["type"];
            string qrcode = string.Empty;
            string randomcode = "";
            _memoryCache.TryGetValue(Constant._KeyServerDevice, out ServerDevice? server);
            School? school = null;
            if (server != null)
            {
                school = server.school;
            }
            if (school != null)
            {
                switch (true)
                {
                    case bool when $"{type}".Equals("qrcode"):
                        {
                            //.NET Core使用SkiaSharp快速生成二维码  https://cloud.tencent.com/developer/article/2336486

                            // 生成二维码图片
                            Random random = new Random();
                            randomcode = $"{random.Next(1000, 9999)}";
                            string? CenterUrl = _configuration.GetValue<string>("ExamServer:CenterUrl");
                            CenterUrl = CenterUrl.Equals("https://localhost:5001") ? "https://www.teammodel.cn" : CenterUrl;
                            string content = $"{CenterUrl}/qrcodelogin?randomcode=Login:ExamServer:{school?.id}:{randomcode}&m=%E6%89%AB%E7%A0%81%E7%99%BB%E5%BD%95&o=1";
                            var str = QRCodeHelper.GenerateQRCode(content, 300, 300, QRCodeHelper.logo);
                            qrcode = $"data:image/png;base64,{str}";
                            int ttl = 60;
                            string  key = $"Login:ExamServer:{school?.id}:{randomcode}";
                            _memoryCache.Set(key, randomcode, TimeSpan.FromSeconds(ttl));
                            var device =IndexService.GetDevice(HttpContext,_memoryCache);

                            _memoryCache.Set($"device:{key}", device);
                            try {
                                if (_connectionService.notifyIsConnected && _connectionService.serverDevice!=null) 
                                {
                                    string url = $"{_connectionService.notifyUrl!}/third/ies/qrcode-login-register";
                                    //扫描登录，远端设备登记临时随机码
                                    await _httpClientFactory.CreateClient().PostAsJsonAsync(url,new { randomcode= key, deviceid = _connectionService .serverDevice.deviceId});
                                }
                            } catch (Exception e) {
                                _logger.LogError($"{e.Message},{e.StackTrace}");
                            }
                            return Ok(new { ttl,code = 200, randomCode = randomcode, qrcode, type });
                        }
                    case bool when $"{type}".Equals("xqrcode"):
                        {
                            // 生成二维码图片
                            Random random = new Random();
                            randomcode = $"{random.Next(1000, 9999)}";
                            string? CenterUrl = _configuration.GetValue<string>("ExamServer:CenterUrl");
                            CenterUrl = CenterUrl.Equals("https://localhost:5001") ? "https://www.teammodel.cn" : CenterUrl;
                            string content = $"{CenterUrl}/qrcodelogin?randomcode=Login:ExamServer:{school?.id}:{randomcode}&m=%E6%89%AB%E7%A0%81%E7%99%BB%E5%BD%95&o=1";
                            Bitmap qrCodeImage = QRCodeHelper.GetBitmap(content, 200, 200);
                            using (MemoryStream stream = new MemoryStream())
                            {
                                qrCodeImage.Save(stream, ImageFormat.Png);
                                byte[] data = stream.ToArray();
                                qrcode = $"data:image/png;base64,{Convert.ToBase64String(data)}";
                            }
                            int ttl = 60;
                            _memoryCache.Set($"Login:ExamServer:{school?.id}:{randomcode}", randomcode, TimeSpan.FromSeconds(ttl));
                            return Ok(new {ttl, code = 200, randomCode = randomcode, qrcode, type });
                        }
                    case bool when $"{type}".Equals("smspin"):
                        {
                            int send = 0;
                            if (!string.IsNullOrWhiteSpace($"{json["area"]}") && !string.IsNullOrWhiteSpace($"{json["to"]}"))
                            {
                                string? CenterUrl = _configuration.GetValue<string>("ExamServer:CenterUrl");
                                string url = $"{CenterUrl}/core/sendsms/pin";
                                HttpResponseMessage message = await _httpClientFactory.CreateClient().PostAsJsonAsync(url, new { area = json["area"], to = json["to"], lang = "zh-cn" });
                                if (message.IsSuccessStatusCode)
                                {
                                    string content = await message.Content.ReadAsStringAsync();
                                    JsonNode? jsonNode = content?.ToObject<JsonNode>();
                                    if (jsonNode != null && int.TryParse($"{jsonNode["send"]}", out int s))
                                    {
                                        send = s;
                                    }
                                }
                            }
                            return Ok(new { code = 200, send, type });
                        }
                }
            }
            else if (school == null) 
            {
                return Ok(new { code = 400,msg="未绑定学校" });
            }
            return Ok(new { code = 400 });
        }

    }
}