mirror of
https://github.com/AndrioCelos/TableturfBattleApp.git
synced 2026-03-22 01:44:12 -05:00
722 lines
33 KiB
C#
722 lines
33 KiB
C#
using System.Diagnostics.CodeAnalysis;
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using System.Globalization;
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using System.Net;
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using System.Reflection;
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using System.Text;
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using System.Text.RegularExpressions;
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using System.Timers;
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using System.Web;
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using Newtonsoft.Json;
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using TableturfBattleServer.DTO;
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using WebSocketSharp.Server;
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using HttpListenerRequest = WebSocketSharp.Net.HttpListenerRequest;
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using HttpListenerResponse = WebSocketSharp.Net.HttpListenerResponse;
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using Timer = System.Timers.Timer;
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namespace TableturfBattleServer;
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internal partial class Program {
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internal static HttpServer? httpServer;
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internal static Dictionary<Guid, Game> games = [];
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internal static Dictionary<Guid, Game> inactiveGames = [];
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internal static readonly Timer timer = new(1000);
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private static bool lockdown;
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private const int InactiveGameLimit = 1000;
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private static readonly TimeSpan InactiveGameTimeout = TimeSpan.FromMinutes(5);
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internal static readonly char[] DELIMITERS = [',', ' '];
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private static string? GetClientRootPath() {
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var directory = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
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while (true) {
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if (directory == null) return null;
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var directory2 = Path.Combine(directory, "TableturfBattleClient");
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if (Directory.Exists(directory2)) return directory2;
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directory = Path.GetDirectoryName(directory);
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}
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}
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internal static void Main(string[] args) {
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httpServer = new(args.Contains("--open") ? IPAddress.Any : IPAddress.Loopback, 3333) { DocumentRootPath = GetClientRootPath() };
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timer.Elapsed += Timer_Elapsed;
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httpServer.AddWebSocketService<TableturfWebSocketBehaviour>("/api/websocket");
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httpServer.OnGet += HttpServer_OnRequest;
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httpServer.OnPost += HttpServer_OnRequest;
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httpServer.Start();
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Console.WriteLine($"Listening on http://{httpServer.Address}:{httpServer.Port}");
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if (httpServer.DocumentRootPath != null)
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Console.WriteLine($"Serving client files from {httpServer.DocumentRootPath}");
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else
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Console.WriteLine($"Client files were not found.");
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while (true) {
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var s = Console.ReadLine();
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if (s == null)
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Thread.Sleep(Timeout.Infinite);
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else {
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s = s.Trim().ToLower();
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if (s == "update") {
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if (games.Count == 0)
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Environment.Exit(2);
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lockdown = true;
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Console.WriteLine("Locking server for update.");
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}
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}
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}
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}
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private static void Timer_Elapsed(object? sender, ElapsedEventArgs e) {
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lock (games) {
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foreach (var (id, game) in games) {
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lock (game.Players) {
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game.Tick();
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if (DateTime.UtcNow - game.abandonedSince >= InactiveGameTimeout) {
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games.Remove(id);
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inactiveGames.Add(id, game);
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Console.WriteLine($"{games.Count} games active; {inactiveGames.Count} inactive");
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if (lockdown && games.Count == 0)
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Environment.Exit(2);
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}
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}
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}
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if (inactiveGames.Count >= InactiveGameLimit) {
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foreach (var (k, _) in inactiveGames.Select(e => (e.Key, e.Value.abandonedSince)).OrderBy(e => e.abandonedSince).Take(InactiveGameLimit / 2))
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inactiveGames.Remove(k);
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Console.WriteLine($"{games.Count} games active; {inactiveGames.Count} inactive");
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}
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}
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}
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private static void HttpServer_OnRequest(object? sender, HttpRequestEventArgs e) {
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e.Response.AppendHeader("Access-Control-Allow-Origin", "*");
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if (!e.Request.RawUrl.StartsWith("/api/")) {
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var path = e.Request.RawUrl == "/" || e.Request.RawUrl.StartsWith("/deckeditor") || e.Request.RawUrl.StartsWith("/game/") || e.Request.RawUrl.StartsWith("/replay/")
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? "index.html"
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: HttpUtility.UrlDecode(e.Request.RawUrl[1..]);
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if (e.TryReadFile(path, out var bytes))
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SetResponse(e.Response, HttpStatusCode.OK,
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Path.GetExtension(path) switch {
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".html" or ".htm" => "text/html",
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".css" => "text/css",
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".js" => "text/javascript",
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".png" => "image/png",
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".webp" => "image/webp",
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".woff" or ".woff2" => "font/woff",
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_ => "application/octet-stream"
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}, bytes);
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else
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SetErrorResponse(e.Response, new(HttpStatusCode.NotFound, "NotFound", "File not found."));
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return;
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} else if (e.Request.RawUrl == "/api/games/new") {
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if (e.Request.HttpMethod != "POST") {
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e.Response.AddHeader("Allow", "POST");
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SetErrorResponse(e.Response, new(HttpStatusCode.MethodNotAllowed, "MethodNotAllowed", "Invalid request method for this endpoint."));
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} else if (lockdown) {
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SetErrorResponse(e.Response, new(HttpStatusCode.ServiceUnavailable, "ServerLocked", "The server is temporarily locked for an update. Please try again soon."));
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} else if (e.Request.ContentLength64 >= 65536) {
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e.Response.StatusCode = (int) HttpStatusCode.RequestEntityTooLarge;
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} else {
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try {
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var d = DecodeFormData(e.Request.InputStream);
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Guid clientToken;
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if (!d.TryGetValue("name", out var name)) {
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SetErrorResponse(e.Response, new(HttpStatusCode.UnprocessableEntity, "InvalidName", "Missing name."));
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return;
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}
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if (name.Length > 32) {
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SetErrorResponse(e.Response, new(HttpStatusCode.UnprocessableEntity, "InvalidName", "Name is too long."));
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return;
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}
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var maxPlayers = 2;
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if (d.TryGetValue("maxPlayers", out var maxPlayersString)) {
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if (!int.TryParse(maxPlayersString, out maxPlayers) || maxPlayers < 2 || maxPlayers > 4) {
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SetErrorResponse(e.Response, new(HttpStatusCode.UnprocessableEntity, "InvalidMaxPlayers", "Invalid player limit."));
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return;
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}
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}
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int? turnTimeLimit = null;
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if (d.TryGetValue("turnTimeLimit", out var turnTimeLimitString) && turnTimeLimitString != "") {
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if (!int.TryParse(turnTimeLimitString, out var turnTimeLimit2) || turnTimeLimit2 < 10) {
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SetErrorResponse(e.Response, new(HttpStatusCode.UnprocessableEntity, "InvalidTurnTimeLimit", "Invalid turn time limit."));
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return;
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}
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turnTimeLimit = turnTimeLimit2;
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}
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int? goalWinCount = null;
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if (d.TryGetValue("goalWinCount", out var goalWinCountString) && goalWinCountString != "") {
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if (!int.TryParse(goalWinCountString, out var goalWinCount2) || goalWinCount2 < 1) {
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SetErrorResponse(e.Response, new(HttpStatusCode.UnprocessableEntity, "InvalidGoalWinCount", "Invalid goal win count."));
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return;
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}
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goalWinCount = goalWinCount2;
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}
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if (d.TryGetValue("clientToken", out var tokenString) && tokenString != "") {
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if (!Guid.TryParse(tokenString, out clientToken)) {
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SetErrorResponse(e.Response, new(HttpStatusCode.UnprocessableEntity, "InvalidClientToken", "Invalid client token."));
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return;
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}
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} else
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clientToken = Guid.NewGuid();
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var allowUpcomingCards = false;
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if (d.TryGetValue("allowUpcomingCards", out var allowUpcomingCardsString)) {
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if (!bool.TryParse(allowUpcomingCardsString, out allowUpcomingCards))
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SetErrorResponse(e.Response, new(HttpStatusCode.UnprocessableEntity, "InvalidGameSettings", "allowUpcomingCards was invalid."));
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} else
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allowUpcomingCards = true;
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StageSelectionRules? stageSelectionRuleFirst = null, stageSelectionRuleAfterWin = null, stageSelectionRuleAfterDraw = null;
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if (d.TryGetValue("stageSelectionRuleFirst", out var json1)) {
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if (!TryParseStageSelectionRule(json1, out stageSelectionRuleFirst) || stageSelectionRuleFirst.Method is StageSelectionMethod.Same or StageSelectionMethod.Counterpick) {
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SetErrorResponse(e.Response, new(HttpStatusCode.UnprocessableEntity, "InvalidGameSettings", "stageSelectionRuleFirst was invalid."));
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return;
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}
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} else
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stageSelectionRuleFirst = StageSelectionRules.Default;
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if (d.TryGetValue("stageSelectionRuleAfterWin", out var json2)) {
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if (!TryParseStageSelectionRule(json2, out stageSelectionRuleAfterWin)) {
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SetErrorResponse(e.Response, new(HttpStatusCode.UnprocessableEntity, "InvalidGameSettings", "stageSelectionRuleAfterWin was invalid."));
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return;
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}
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} else
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stageSelectionRuleAfterWin = stageSelectionRuleFirst;
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if (d.TryGetValue("stageSelectionRuleAfterDraw", out var json3)) {
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if (!TryParseStageSelectionRule(json3, out stageSelectionRuleAfterDraw) || stageSelectionRuleAfterDraw.Method == StageSelectionMethod.Counterpick) {
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SetErrorResponse(e.Response, new(HttpStatusCode.UnprocessableEntity, "InvalidGameSettings", "stageSelectionRuleAfterDraw was invalid."));
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return;
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}
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} else
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stageSelectionRuleAfterDraw = stageSelectionRuleFirst;
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var forceSameDeckAfterDraw = false;
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if (d.TryGetValue("forceSameDeckAfterDraw", out var forceSameDeckAfterDrawString)) {
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if (!bool.TryParse(forceSameDeckAfterDrawString, out forceSameDeckAfterDraw))
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SetErrorResponse(e.Response, new(HttpStatusCode.UnprocessableEntity, "InvalidGameSettings", "forceSameDeckAfterDraw was invalid."));
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} else
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forceSameDeckAfterDraw = false;
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var spectate = false;
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if (d.TryGetValue("spectate", out var spectateString)) {
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if (!bool.TryParse(spectateString, out spectate))
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SetErrorResponse(e.Response, new(HttpStatusCode.UnprocessableEntity, "InvalidGameSettings", "spectate was invalid."));
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} else
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spectate = false;
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var game = new Game(maxPlayers) { HostClientToken = clientToken, GoalWinCount = goalWinCount, TurnTimeLimit = turnTimeLimit, AllowUpcomingCards = allowUpcomingCards, StageSelectionRuleFirst = stageSelectionRuleFirst, StageSelectionRuleAfterWin = stageSelectionRuleAfterWin, StageSelectionRuleAfterDraw = stageSelectionRuleAfterDraw, ForceSameDeckAfterDraw = forceSameDeckAfterDraw };
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if (!spectate)
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game.TryAddPlayer(new(game, name, clientToken), out _, out _);
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games.Add(game.ID, game);
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timer.Start();
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SetResponse(e.Response, HttpStatusCode.OK, "application/json", JsonUtils.Serialise(new { gameID = game.ID, clientToken, maxPlayers }));
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Console.WriteLine($"New game started: {game.ID}; {games.Count} games active; {inactiveGames.Count} inactive");
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} catch (ArgumentException) {
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SetErrorResponse(e.Response, new(HttpStatusCode.BadRequest, "InvalidRequestData", "Invalid form data"));
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}
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}
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} else if (e.Request.RawUrl == "/api/cards") {
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SetStaticResponse(e.Request, e.Response, CardDatabase.JSON, CardDatabase.Version.ToString(), CardDatabase.LastModified);
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} else if (e.Request.RawUrl == "/api/stages") {
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SetStaticResponse(e.Request, e.Response, StageDatabase.JSON, StageDatabase.Version.ToString(), StageDatabase.LastModified);
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} else {
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var m = GamePathRegex().Match(e.Request.RawUrl);
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if (m.Success) {
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if (!Guid.TryParse(m.Groups[1].Value, out var gameID)) {
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SetErrorResponse(e.Response, new(HttpStatusCode.BadRequest, "InvalidGameID", "Invalid game ID."));
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return;
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}
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lock (games) {
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if (!TryGetGame(gameID, out var game)) {
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SetErrorResponse(e.Response, new(HttpStatusCode.NotFound, "GameNotFound", "Game not found."));
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return;
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}
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lock (game.Players) {
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switch (m.Groups[2].Value) {
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case "": {
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if (e.Request.HttpMethod is not ("GET" or "HEAD")) {
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e.Response.AddHeader("Allow", "GET, HEAD");
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SetErrorResponse(e.Response, new(HttpStatusCode.MethodNotAllowed, "MethodNotAllowed", "Invalid request method for this endpoint."));
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return;
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}
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SetResponse(e.Response, HttpStatusCode.OK, "application/json", JsonUtils.Serialise(game));
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break;
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}
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case "playerData": {
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if (e.Request.HttpMethod is not ("GET" or "HEAD")) {
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e.Response.AddHeader("Allow", "GET, HEAD");
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SetErrorResponse(e.Response, new(HttpStatusCode.MethodNotAllowed, "MethodNotAllowed", "Invalid request method for this endpoint."));
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return;
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}
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if (!Guid.TryParse(m.Groups[3].Value, out var clientToken))
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clientToken = Guid.Empty;
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SetResponse(e.Response, HttpStatusCode.OK, "application/json", JsonUtils.Serialise(new {
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game,
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playerData = game.GetPlayer(clientToken, out var playerIndex, out var player)
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? new PlayerData(playerIndex, player)
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: null
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}));
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break;
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}
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case "join": {
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if (e.Request.HttpMethod != "POST") {
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e.Response.AddHeader("Allow", "POST");
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SetErrorResponse(e.Response, new(HttpStatusCode.MethodNotAllowed, "MethodNotAllowed", "Invalid request method for this endpoint."));
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} else if (e.Request.ContentLength64 >= 65536) {
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e.Response.StatusCode = (int) HttpStatusCode.RequestEntityTooLarge;
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} else {
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try {
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var d = DecodeFormData(e.Request.InputStream);
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Guid clientToken;
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if (!d.TryGetValue("name", out var name)) {
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SetErrorResponse(e.Response, new(HttpStatusCode.UnprocessableEntity, "InvalidName", "Missing name."));
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return;
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}
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if (name.Length > 32) {
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SetErrorResponse(e.Response, new(HttpStatusCode.UnprocessableEntity, "InvalidName", "Name is too long."));
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return;
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}
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if (d.TryGetValue("clientToken", out var tokenString) && tokenString != "") {
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if (!Guid.TryParse(tokenString, out clientToken)) {
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SetErrorResponse(e.Response, new(HttpStatusCode.BadRequest, "InvalidClientToken", "Invalid client token."));
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return;
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}
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} else
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clientToken = Guid.NewGuid();
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if (!game.GetPlayer(clientToken, out var playerIndex, out var player)) {
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if (game.State != GameState.WaitingForPlayers) {
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SetErrorResponse(e.Response, new(HttpStatusCode.Gone, "GameAlreadyStarted", "The game has already started."));
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return;
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}
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player = new Player(game, name, clientToken);
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if (!game.TryAddPlayer(player, out playerIndex, out var error)) {
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SetErrorResponse(e.Response, error);
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return;
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}
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game.SendEvent("join", new { playerIndex, player }, false);
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}
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// If they're already in the game, resend the original join response instead of an error.
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SetResponse(e.Response, HttpStatusCode.OK, "application/json", JsonUtils.Serialise(new { playerIndex, clientToken }));
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timer.Start();
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} catch (ArgumentException) {
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SetErrorResponse(e.Response, new(HttpStatusCode.BadRequest, "InvalidRequestData", "Invalid form data"));
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}
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}
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break;
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}
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case "setGameSettings": {
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if (e.Request.HttpMethod != "POST") {
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e.Response.AddHeader("Allow", "POST");
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SetErrorResponse(e.Response, new(HttpStatusCode.MethodNotAllowed, "MethodNotAllowed", "Invalid request method for this endpoint."));
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} else if (e.Request.ContentLength64 >= 65536) {
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e.Response.StatusCode = (int) HttpStatusCode.RequestEntityTooLarge;
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} else {
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var d = DecodeFormData(e.Request.InputStream);
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if (!d.TryGetValue("clientToken", out var tokenString) || !Guid.TryParse(tokenString, out var clientToken)) {
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SetErrorResponse(e.Response, new(HttpStatusCode.BadRequest, "InvalidClientToken", "Invalid client token."));
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return;
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}
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if (clientToken != game.HostClientToken) {
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SetErrorResponse(e.Response, new(HttpStatusCode.Forbidden, "AccessDenied", "Only the host can do that."));
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return;
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}
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if (game.State != GameState.WaitingForPlayers) {
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SetErrorResponse(e.Response, new(HttpStatusCode.Gone, "GameAlreadyStarted", "The game has already started."));
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return;
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}
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if (d.TryGetValue("turnTimeLimit", out var turnTimeLimitString)) {
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if (turnTimeLimitString == "")
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game.TurnTimeLimit = null;
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else if (!int.TryParse(turnTimeLimitString, out var turnTimeLimit2) || turnTimeLimit2 < 10) {
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SetErrorResponse(e.Response, new(HttpStatusCode.UnprocessableEntity, "InvalidGameSettings", "Invalid turn time limit."));
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return;
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} else
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game.TurnTimeLimit = turnTimeLimit2;
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}
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if (d.TryGetValue("allowUpcomingCards", out var allowUpcomingCardsString)) {
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if (!bool.TryParse(allowUpcomingCardsString, out var allowUpcomingCards)) {
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SetErrorResponse(e.Response, new(HttpStatusCode.UnprocessableEntity, "InvalidGameSettings", "Invalid allowUpcomingCards."));
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return;
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} else
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game.AllowUpcomingCards = allowUpcomingCards;
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}
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game.SendEvent("settingsChange", game, false);
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}
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break;
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}
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case "chooseStage": {
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if (e.Request.HttpMethod != "POST") {
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e.Response.AddHeader("Allow", "POST");
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SetErrorResponse(e.Response, new(HttpStatusCode.MethodNotAllowed, "MethodNotAllowed", "Invalid request method for this endpoint."));
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} else if (e.Request.ContentLength64 >= 65536) {
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e.Response.StatusCode = (int) HttpStatusCode.RequestEntityTooLarge;
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} else {
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var d = DecodeFormData(e.Request.InputStream);
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if (!d.TryGetValue("clientToken", out var tokenString) || !Guid.TryParse(tokenString, out var clientToken)) {
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SetErrorResponse(e.Response, new(HttpStatusCode.BadRequest, "InvalidClientToken", "Invalid client token."));
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return;
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}
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if (!game.GetPlayer(clientToken, out var playerIndex, out var player)) {
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SetErrorResponse(e.Response, new(HttpStatusCode.UnprocessableEntity, "NotInGame", "You're not in the game."));
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return;
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}
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if (!d.TryGetValue("stages", out var stagesString)) {
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SetErrorResponse(e.Response, new(HttpStatusCode.BadRequest, "InvalidStage", "Missing stages."));
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return;
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}
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var stages = new HashSet<int>();
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foreach (var field in stagesString.Split(DELIMITERS, StringSplitOptions.RemoveEmptyEntries)) {
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if (!int.TryParse(field, out var i)) {
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SetErrorResponse(e.Response, new(HttpStatusCode.BadRequest, "InvalidStage", "Invalid stages."));
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return;
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}
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stages.Add(i);
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}
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if (!game.TryChooseStages(player, stages, out var error)) {
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SetErrorResponse(e.Response, error);
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return;
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}
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e.Response.StatusCode = (int) HttpStatusCode.NoContent;
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game.SendPlayerReadyEvent(playerIndex, false);
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timer.Start();
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}
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break;
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}
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case "chooseDeck": {
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if (e.Request.HttpMethod != "POST") {
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e.Response.AddHeader("Allow", "POST");
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SetErrorResponse(e.Response, new(HttpStatusCode.MethodNotAllowed, "MethodNotAllowed", "Invalid request method for this endpoint."));
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} else if (e.Request.ContentLength64 >= 65536) {
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e.Response.StatusCode = (int) HttpStatusCode.RequestEntityTooLarge;
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} else {
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try {
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var d = DecodeFormData(e.Request.InputStream);
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if (!d.TryGetValue("clientToken", out var tokenString) || !Guid.TryParse(tokenString, out var clientToken)) {
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SetErrorResponse(e.Response, new(HttpStatusCode.BadRequest, "InvalidClientToken", "Invalid client token."));
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return;
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}
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if (!game.GetPlayer(clientToken, out var playerIndex, out var player)) {
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SetErrorResponse(e.Response, new(HttpStatusCode.UnprocessableEntity, "NotInGame", "You're not in the game."));
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return;
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}
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if (player.CurrentGameData.Deck != null) {
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SetErrorResponse(e.Response, new(HttpStatusCode.Conflict, "DeckAlreadyChosen", "You've already chosen a deck."));
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return;
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}
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|
|
if (!d.TryGetValue("deckName", out var deckName)) {
|
|
SetErrorResponse(e.Response, new(HttpStatusCode.BadRequest, "InvalidDeckName", "Missing deck name."));
|
|
return;
|
|
}
|
|
var deckSleeves = 0;
|
|
if (d.TryGetValue("deckSleeves", out var deckSleevesString) && (!int.TryParse(deckSleevesString, out deckSleeves) || deckSleeves is < 0 or >= 25)) {
|
|
SetErrorResponse(e.Response, new(HttpStatusCode.BadRequest, "InvalidDeckSleeves", "Invalid deck sleeves."));
|
|
return;
|
|
}
|
|
if (!d.TryGetValue("deckCards", out var deckString)) {
|
|
SetErrorResponse(e.Response, new(HttpStatusCode.BadRequest, "InvalidDeckCards", "Missing deck cards."));
|
|
return;
|
|
}
|
|
var array = deckString.Split([',', '+', ' '], 15);
|
|
if (array.Length != 15) {
|
|
SetErrorResponse(e.Response, new(HttpStatusCode.UnprocessableEntity, "InvalidDeckCards", "Invalid deck list."));
|
|
return;
|
|
}
|
|
int[]? upgrades = null;
|
|
if (d.TryGetValue("deckUpgrades", out var deckUpgradesString)) {
|
|
upgrades = new int[15];
|
|
var array2 = deckUpgradesString.Split([',', '+', ' '], 15);
|
|
for (var i = 0; i < 15; i++) {
|
|
if (int.TryParse(array2[i], out var j) && i is >= 0 and <= 2)
|
|
upgrades[i] = j;
|
|
else {
|
|
SetErrorResponse(e.Response, new(HttpStatusCode.UnprocessableEntity, "InvalidDeckUpgrades", "Invalid deck upgrade list."));
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
var cards = new int[15];
|
|
for (var i = 0; i < 15; i++) {
|
|
if (!int.TryParse(array[i], out var cardNumber) || !CardDatabase.IsValidCardNumber(cardNumber)) {
|
|
SetErrorResponse(e.Response, new(HttpStatusCode.UnprocessableEntity, "InvalidDeckCards", "Invalid deck list."));
|
|
return;
|
|
}
|
|
if (Array.IndexOf(cards, cardNumber, 0, i) >= 0) {
|
|
SetErrorResponse(e.Response, new(HttpStatusCode.UnprocessableEntity, "InvalidDeckCards", "Deck cannot have duplicates."));
|
|
return;
|
|
}
|
|
if (!game.AllowUpcomingCards && cardNumber < 0 && CardDatabase.GetCard(cardNumber).Number < 0) {
|
|
SetErrorResponse(e.Response, new(HttpStatusCode.UnprocessableEntity, "ForbiddenDeck", "Upcoming cards cannot be used in this game."));
|
|
return;
|
|
}
|
|
cards[i] = cardNumber;
|
|
}
|
|
|
|
player.CurrentGameData.Deck = game.GetDeck(deckName, deckSleeves, cards, upgrades ?? Enumerable.Repeat(0, 15));
|
|
e.Response.StatusCode = (int) HttpStatusCode.NoContent;
|
|
game.SendPlayerReadyEvent(playerIndex, false);
|
|
timer.Start();
|
|
} catch (ArgumentException) {
|
|
SetErrorResponse(e.Response, new(HttpStatusCode.BadRequest, "InvalidRequestData", "Invalid form data"));
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case "play": {
|
|
if (e.Request.HttpMethod != "POST") {
|
|
e.Response.AddHeader("Allow", "POST");
|
|
SetErrorResponse(e.Response, new(HttpStatusCode.MethodNotAllowed, "MethodNotAllowed", "Invalid request method for this endpoint."));
|
|
} else if (e.Request.ContentLength64 >= 65536) {
|
|
e.Response.StatusCode = (int) HttpStatusCode.RequestEntityTooLarge;
|
|
} else {
|
|
try {
|
|
var d = DecodeFormData(e.Request.InputStream);
|
|
if (!d.TryGetValue("clientToken", out var tokenString) || !Guid.TryParse(tokenString, out var clientToken)) {
|
|
SetErrorResponse(e.Response, new(HttpStatusCode.BadRequest, "InvalidClientToken", "Invalid client token."));
|
|
return;
|
|
}
|
|
if (game.State != GameState.Ongoing) {
|
|
SetErrorResponse(e.Response, new(HttpStatusCode.Conflict, "GameNotSetUp", "You can't do that in this game state."));
|
|
return;
|
|
}
|
|
if (!game.GetPlayer(clientToken, out var playerIndex, out var player)) {
|
|
SetErrorResponse(e.Response, new(HttpStatusCode.Forbidden, "NotInGame", "You're not in the game."));
|
|
return;
|
|
}
|
|
|
|
if (player.Move != null) {
|
|
SetErrorResponse(e.Response, new(HttpStatusCode.Conflict, "MoveAlreadyChosen", "You've already chosen a move."));
|
|
return;
|
|
}
|
|
|
|
if (!d.TryGetValue("cardNumber", out var cardNumberStr) || !int.TryParse(cardNumberStr, out var cardNumber)) {
|
|
SetErrorResponse(e.Response, new(HttpStatusCode.BadRequest, "InvalidCard", "Missing or invalid card number."));
|
|
return;
|
|
}
|
|
|
|
var handIndex = player.GetHandIndex(cardNumber);
|
|
if (handIndex < 0) {
|
|
SetErrorResponse(e.Response, new(HttpStatusCode.UnprocessableEntity, "MissingCard", "You don't have that card."));
|
|
return;
|
|
}
|
|
|
|
var isTimeout = d.TryGetValue("isTimeout", out var isTimeoutStr) && isTimeoutStr.ToLower() is not ("false" or "0");
|
|
|
|
var card = player.Hand![handIndex];
|
|
if (d.TryGetValue("isPass", out var isPassStr) && isPassStr.ToLower() is not ("false" or "0")) {
|
|
player.Move = new(card, true, 0, 0, 0, false, isTimeout);
|
|
} else {
|
|
var isSpecialAttack = d.TryGetValue("isSpecialAttack", out var isSpecialAttackStr) && isSpecialAttackStr.ToLower() is not ("false" or "0");
|
|
if (!d.TryGetValue("x", out var xs) || !int.TryParse(xs, out var x)
|
|
|| !d.TryGetValue("y", out var ys) || !int.TryParse(ys, out var y)
|
|
|| !d.TryGetValue("r", out var rs) || !int.TryParse(rs, out var r)) {
|
|
SetErrorResponse(e.Response, new(HttpStatusCode.BadRequest, "InvalidPosition", "Missing or invalid position."));
|
|
return;
|
|
}
|
|
r &= 3;
|
|
if (!game.CanPlay(playerIndex, card, x, y, r, isSpecialAttack)) {
|
|
SetErrorResponse(e.Response, new(HttpStatusCode.UnprocessableEntity, "IllegalMove", "Illegal move"));
|
|
return;
|
|
}
|
|
player.Move = new(card, false, x, y, r, isSpecialAttack, isTimeout);
|
|
}
|
|
e.Response.StatusCode = (int) HttpStatusCode.NoContent;
|
|
game.SendPlayerReadyEvent(playerIndex, isTimeout);
|
|
timer.Start();
|
|
} catch (ArgumentException) {
|
|
e.Response.StatusCode = (int) HttpStatusCode.BadRequest;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case "redraw": {
|
|
if (e.Request.HttpMethod != "POST") {
|
|
e.Response.AddHeader("Allow", "POST");
|
|
SetErrorResponse(e.Response, new(HttpStatusCode.MethodNotAllowed, "MethodNotAllowed", "Invalid request method for this endpoint."));
|
|
} else if (e.Request.ContentLength64 >= 65536) {
|
|
e.Response.StatusCode = (int) HttpStatusCode.RequestEntityTooLarge;
|
|
} else {
|
|
try {
|
|
if (game.State != GameState.Redraw) {
|
|
SetErrorResponse(e.Response, new(HttpStatusCode.Conflict, "GameNotSetUp", "You can't do that in this game state."));
|
|
return;
|
|
}
|
|
|
|
var d = DecodeFormData(e.Request.InputStream);
|
|
if (!d.TryGetValue("clientToken", out var tokenString) || !Guid.TryParse(tokenString, out var clientToken)) {
|
|
SetErrorResponse(e.Response, new(HttpStatusCode.BadRequest, "InvalidClientToken", "Invalid client token."));
|
|
return;
|
|
}
|
|
if (!game.GetPlayer(clientToken, out var playerIndex, out var player)) {
|
|
SetErrorResponse(e.Response, new(HttpStatusCode.Forbidden, "NotInGame", "You're not in the game."));
|
|
return;
|
|
}
|
|
|
|
if (player.Move != null) {
|
|
SetErrorResponse(e.Response, new(HttpStatusCode.Conflict, "MoveAlreadyChosen", "You've already chosen a move."));
|
|
return;
|
|
}
|
|
|
|
var redraw = d.TryGetValue("redraw", out var redrawStr) && redrawStr.ToLower() is not ("false" or "0");
|
|
player.Move = new(player.Hand![0], false, 0, 0, 0, redraw, false);
|
|
e.Response.StatusCode = (int) HttpStatusCode.NoContent;
|
|
game.SendPlayerReadyEvent(playerIndex, false);
|
|
timer.Start();
|
|
} catch (ArgumentException) {
|
|
e.Response.StatusCode = (int) HttpStatusCode.BadRequest;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case "nextGame": {
|
|
if (e.Request.HttpMethod != "POST") {
|
|
e.Response.AddHeader("Allow", "POST");
|
|
SetErrorResponse(e.Response, new(HttpStatusCode.MethodNotAllowed, "MethodNotAllowed", "Invalid request method for this endpoint."));
|
|
} else if (e.Request.ContentLength64 >= 65536) {
|
|
e.Response.StatusCode = (int) HttpStatusCode.RequestEntityTooLarge;
|
|
} else {
|
|
try {
|
|
if (game.State is not (GameState.GameEnded or GameState.SetEnded)) {
|
|
SetErrorResponse(e.Response, new(HttpStatusCode.Conflict, "GameNotSetUp", "You can't do that in this game state."));
|
|
return;
|
|
}
|
|
|
|
var d = DecodeFormData(e.Request.InputStream);
|
|
if (!d.TryGetValue("clientToken", out var tokenString) || !Guid.TryParse(tokenString, out var clientToken)) {
|
|
SetErrorResponse(e.Response, new(HttpStatusCode.BadRequest, "InvalidClientToken", "Invalid client token."));
|
|
return;
|
|
}
|
|
if (!game.GetPlayer(clientToken, out var playerIndex, out var player)) {
|
|
SetErrorResponse(e.Response, new(HttpStatusCode.Forbidden, "NotInGame", "You're not in the game."));
|
|
return;
|
|
}
|
|
|
|
if (player.Move == null) {
|
|
player.Move = new(player.Hand![0], false, 0, 0, 0, false, false); // Dummy move to indicate that the player is ready.
|
|
game.SendPlayerReadyEvent(playerIndex, false);
|
|
}
|
|
e.Response.StatusCode = (int) HttpStatusCode.NoContent;
|
|
timer.Start();
|
|
} catch (ArgumentException) {
|
|
e.Response.StatusCode = (int) HttpStatusCode.BadRequest;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case "replay": {
|
|
if (e.Request.HttpMethod != "GET") {
|
|
e.Response.AddHeader("Allow", "GET");
|
|
SetErrorResponse(e.Response, new(HttpStatusCode.MethodNotAllowed, "MethodNotAllowed", "Invalid request method for this endpoint."));
|
|
} else {
|
|
if (game.State != GameState.SetEnded) {
|
|
SetErrorResponse(e.Response, new(HttpStatusCode.Conflict, "GameInProgress", "You can't see the replay until the set has ended."));
|
|
return;
|
|
}
|
|
var ms = new MemoryStream();
|
|
game.WriteReplayData(ms);
|
|
SetResponse(e.Response, HttpStatusCode.OK, "application/octet-stream", ms.ToArray());
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
SetErrorResponse(e.Response, new(HttpStatusCode.NotFound, "NotFound", "Endpoint not found."));
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
} else
|
|
SetErrorResponse(e.Response, new(HttpStatusCode.NotFound, "NotFound", "Endpoint not found."));
|
|
}
|
|
}
|
|
|
|
private static void SetErrorResponse(HttpListenerResponse response, Error error) {
|
|
var bytes = Encoding.UTF8.GetBytes(JsonUtils.Serialise(error));
|
|
SetResponse(response, error.HttpStatusCode, "application/json", bytes);
|
|
}
|
|
private static void SetResponse(HttpListenerResponse response, HttpStatusCode statusCode, string contentType, string content) {
|
|
var bytes = Encoding.UTF8.GetBytes(content);
|
|
SetResponse(response, statusCode, contentType, bytes);
|
|
}
|
|
private static void SetResponse(HttpListenerResponse response, HttpStatusCode statusCode, string contentType, byte[] content) {
|
|
response.StatusCode = (int) statusCode;
|
|
response.ContentType = contentType;
|
|
response.ContentLength64 = content.Length;
|
|
response.Close(content, true);
|
|
}
|
|
|
|
private static Dictionary<string, string> DecodeFormData(Stream stream) {
|
|
using var reader = new StreamReader(stream);
|
|
var s = reader.ReadToEnd();
|
|
return s != ""
|
|
? s.Split(['&']).Select(s => s.Split('=')).Select(a => a.Length == 2 ? a : throw new ArgumentException("Invalid form data"))
|
|
.ToDictionary(a => HttpUtility.UrlDecode(a[0]), a => HttpUtility.UrlDecode(a[1]))
|
|
: [];
|
|
}
|
|
|
|
private static void SetStaticResponse(HttpListenerRequest request, HttpListenerResponse response, string jsonContent, string eTag, DateTime lastModified) {
|
|
if (request.HttpMethod is not ("GET" or "HEAD")) {
|
|
response.AddHeader("Allow", "GET, HEAD");
|
|
SetErrorResponse(response, new(HttpStatusCode.MethodNotAllowed, "MethodNotAllowed", "Invalid request method for this endpoint."));
|
|
return;
|
|
}
|
|
response.AppendHeader("Cache-Control", "max-age=86400");
|
|
response.AppendHeader("ETag", eTag);
|
|
response.AppendHeader("Last-Modified", lastModified.ToString("ddd, dd MMM yyyy HH:mm:ss \"GMT\""));
|
|
|
|
var ifNoneMatch = request.Headers["If-None-Match"];
|
|
if (ifNoneMatch != null) {
|
|
if (request.Headers["If-None-Match"] == eTag)
|
|
response.StatusCode = (int) HttpStatusCode.NotModified;
|
|
else
|
|
SetResponse(response, HttpStatusCode.OK, "application/json", jsonContent);
|
|
} else {
|
|
if (DateTime.TryParseExact(request.Headers["If-Modified-Since"], "ddd, dd MMM yyyy HH:mm:ss \"GMT\"", CultureInfo.InvariantCulture, DateTimeStyles.AssumeUniversal | DateTimeStyles.AdjustToUniversal, out var dateTime)
|
|
&& dateTime >= lastModified.ToUniversalTime())
|
|
response.StatusCode = (int) HttpStatusCode.NotModified;
|
|
else
|
|
SetResponse(response, HttpStatusCode.OK, "application/json", jsonContent);
|
|
}
|
|
}
|
|
|
|
internal static bool TryGetGame(Guid gameID, [MaybeNullWhen(false)] out Game game) {
|
|
if (games.TryGetValue(gameID, out game)) {
|
|
game.abandonedSince = DateTime.UtcNow;
|
|
return true;
|
|
} else if (inactiveGames.TryGetValue(gameID, out game)) {
|
|
inactiveGames.Remove(gameID);
|
|
games[gameID] = game;
|
|
game.abandonedSince = DateTime.UtcNow;
|
|
Console.WriteLine($"{games.Count} games active; {inactiveGames.Count} inactive");
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
private static bool TryParseStageSelectionRule(string json, [MaybeNullWhen(false)] out StageSelectionRules stageSelectionRule) {
|
|
try {
|
|
stageSelectionRule = JsonUtils.Deserialise<StageSelectionRules>(json);
|
|
return stageSelectionRule != null;
|
|
} catch (JsonSerializationException) {
|
|
stageSelectionRule = null;
|
|
return false;
|
|
}
|
|
}
|
|
|
|
[GeneratedRegex(@"^/api/games/([\w-]+)(?:/(\w+)(?:\?clientToken=([\w-]+))?)?$", RegexOptions.Compiled)]
|
|
private static partial Regex GamePathRegex();
|
|
}
|