mirror of
https://github.com/CommonLoon102/NBloodServerSupervisor.git
synced 2024-12-23 11:12:47 +01:00
123 lines
4.5 KiB
C#
123 lines
4.5 KiB
C#
using Common;
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using Microsoft.AspNetCore.Http;
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using Microsoft.AspNetCore.Mvc;
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using Microsoft.Extensions.Configuration;
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using Microsoft.Extensions.Logging;
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using Model;
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using System;
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using System.Diagnostics;
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using System.Linq;
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using System.Net;
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using System.Net.Sockets;
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using System.Text;
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using System.Threading;
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using WebInterface.Services;
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namespace WebInterface.Controllers
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{
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[ApiController]
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public class NBloodController : ControllerBase
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{
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private static bool _isBusy = false;
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private static DateTime _lastRefresh = DateTime.MinValue;
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private static ListServersResponse _lastServerList = null;
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private readonly ILogger<NBloodController> _logger;
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private readonly IConfiguration _config;
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private readonly IStateService _listServersService;
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private static readonly Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
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private static readonly IPEndPoint webApiListenerEndPoint = new IPEndPoint(IPAddress.Loopback, 11028);
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public NBloodController(ILogger<NBloodController> logger, IConfiguration config, IStateService listServersService)
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{
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_logger = logger;
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_config = config;
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_listServersService = listServersService;
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}
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[HttpGet]
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[Route("[controller]/api/startserver")]
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public StartServerResponse StartServer([FromQuery] ServerParameters parameters)
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{
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try
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{
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Stopwatch sw = Stopwatch.StartNew();
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while (_isBusy)
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{
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Thread.Sleep(TimeSpan.FromSeconds(1));
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if (sw.Elapsed.TotalSeconds > 5)
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throw new Exception("Request timeout: the previous request hasn't finished yet.");
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}
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_isBusy = true;
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if (parameters.Players < 3)
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parameters.Players = 3;
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if (parameters.ApiKey != _config.GetValue<string>("ApiKey"))
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return new StartServerResponse("Invalid ApiKey.");
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string processName = Constants.NBloodExecutable;
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int serversRunning = Process.GetProcessesByName(processName).Count();
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if (serversRunning >= _config.GetValue<int>("MaximumServers"))
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return new StartServerResponse("The maximum number of servers are already running.");
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Mod mod = GetMod(parameters.ModName);
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int port = PortUtils.GetPort();
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var process = Process.Start(NBloodServerStartInfo.Get(parameters.Players, port, mod));
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byte[] payload = Encoding.ASCII.GetBytes($"B{port}\t{process.Id}\0");
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socket.SendTo(payload, webApiListenerEndPoint);
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_logger.LogInformation("Server started waiting for {0} players on port {1}.",
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parameters.Players, port);
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Thread.Sleep(TimeSpan.FromSeconds(2));
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return new StartServerResponse(port) { CommandLine = CommandLineUtils.GetLaunchCommand(HttpContext.Request.Host.Host, port, mod) };
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}
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catch (Exception ex)
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{
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_logger.LogError(ex.ToString());
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return new StartServerResponse("Unhandled exception has been occured. Check the logs for details.");
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}
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finally
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{
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_isBusy = false;
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}
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}
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[HttpGet]
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[Route("[controller]/api/listservers")]
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public ListServersResponse ListServers()
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{
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try
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{
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if (DateTime.UtcNow - _lastRefresh > TimeSpan.FromSeconds(1)
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|| _lastServerList == null)
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{
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_lastServerList = _listServersService.ListServers(HttpContext.Request.Host.Host);
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_lastRefresh = DateTime.UtcNow;
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}
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return _lastServerList;
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}
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catch (Exception ex)
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{
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_logger.LogError(ex.ToString());
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return new ListServersResponse("Unhandled exception has been occured. Check the logs for details.");
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}
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}
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private Mod GetMod(string modName)
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{
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if (string.IsNullOrWhiteSpace(modName))
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return Constants.SupportedMods["BLOOD"];
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if (!Constants.SupportedMods.ContainsKey(modName.ToUpper()))
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throw new Exception("This mod is not supported: " + modName);
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return Constants.SupportedMods[modName.ToUpper()];
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}
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}
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} |