869 lines
36 KiB
C#
869 lines
36 KiB
C#
using Fleck;
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using SharpChat.Commands;
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using SharpChat.Events;
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using SharpChat.Flashii;
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using SharpChat.Packet;
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Net;
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using System.Net.Http;
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using System.Text;
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using System.Threading;
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namespace SharpChat {
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public class SockChatServer : IDisposable {
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public const int MSG_LENGTH_MAX = 5000;
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#if DEBUG
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public const int MAX_CONNECTIONS = 9001;
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public const int FLOOD_KICK_LENGTH = 5;
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public const bool ENABLE_TYPING_EVENT = true;
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#else
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public const int MAX_CONNECTIONS = 5;
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public const int FLOOD_KICK_LENGTH = 30;
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public const bool ENABLE_TYPING_EVENT = false;
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#endif
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public bool IsDisposed { get; private set; }
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public static ChatUser Bot { get; } = new ChatUser {
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UserId = -1,
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Username = @"ChatBot",
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Rank = 0,
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Colour = new ChatColour(),
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};
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public IWebSocketServer Server { get; }
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public ChatContext Context { get; }
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private readonly HttpClient HttpClient;
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private IReadOnlyCollection<IChatCommand> Commands { get; } = new IChatCommand[] {
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new AFKCommand(),
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};
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public List<ChatUserSession> Sessions { get; } = new List<ChatUserSession>();
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private object SessionsLock { get; } = new object();
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public ChatUserSession GetSession(IWebSocketConnection conn) {
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lock(SessionsLock)
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return Sessions.FirstOrDefault(x => x.Connection == conn);
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}
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private ManualResetEvent Shutdown { get; set; }
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private bool IsShuttingDown = false;
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public SockChatServer(HttpClient httpClient, ushort port) {
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Logger.Write("Starting Sock Chat server...");
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HttpClient = httpClient;
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Context = new ChatContext(HttpClient, this);
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Context.Channels.Add(new ChatChannel(@"Lounge"));
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#if DEBUG
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Context.Channels.Add(new ChatChannel(@"Programming"));
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Context.Channels.Add(new ChatChannel(@"Games"));
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Context.Channels.Add(new ChatChannel(@"Splatoon"));
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Context.Channels.Add(new ChatChannel(@"Password") { Password = @"meow", });
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#endif
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Context.Channels.Add(new ChatChannel(@"Staff") { Rank = 5 });
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Server = new SharpChatWebSocketServer($@"ws://0.0.0.0:{port}");
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}
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public void Listen(ManualResetEvent mre) {
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Shutdown = mre;
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Server.Start(sock => {
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if(IsShuttingDown || IsDisposed) {
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sock.Close(1013);
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return;
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}
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sock.OnOpen = () => OnOpen(sock);
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sock.OnClose = () => OnClose(sock);
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sock.OnError = err => OnError(sock, err);
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sock.OnMessage = msg => OnMessage(sock, msg);
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});
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}
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private void OnOpen(IWebSocketConnection conn) {
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lock(SessionsLock) {
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if(!Sessions.Any(x => x.Connection == conn))
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Sessions.Add(new ChatUserSession(conn));
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}
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Context.Update();
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}
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private void OnClose(IWebSocketConnection conn) {
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ChatUserSession sess = GetSession(conn);
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// Remove connection from user
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if(sess?.User != null) {
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// RemoveConnection sets conn.User to null so we must grab a local copy.
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ChatUser user = sess.User;
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user.RemoveSession(sess);
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if(!user.HasSessions)
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Context.UserLeave(null, user);
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}
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// Update context
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Context.Update();
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// Remove connection from server
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lock(SessionsLock)
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Sessions.Remove(sess);
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sess?.Dispose();
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}
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private void OnError(IWebSocketConnection conn, Exception ex) {
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ChatUserSession sess = GetSession(conn);
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string sessId = sess?.Id ?? new string('0', ChatUserSession.ID_LENGTH);
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Logger.Write($@"[{sessId} {conn.ConnectionInfo.ClientIpAddress}] {ex}");
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Context.Update();
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}
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private void OnMessage(IWebSocketConnection conn, string msg) {
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Context.Update();
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ChatUserSession sess = GetSession(conn);
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if(sess == null) {
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conn.Close();
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return;
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}
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if(sess.User is not null && sess.User.HasFloodProtection) {
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sess.User.RateLimiter.AddTimePoint();
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if(sess.User.RateLimiter.State == ChatRateLimitState.Kick) {
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Context.BanUser(sess.User, DateTimeOffset.UtcNow.AddSeconds(FLOOD_KICK_LENGTH), false, UserDisconnectReason.Flood);
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return;
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} else if(sess.User.RateLimiter.State == ChatRateLimitState.Warning)
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sess.User.Send(new FloodWarningPacket()); // make it so this thing only sends once
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}
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string[] args = msg.Split('\t');
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if(args.Length < 1)
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return;
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switch(args[0]) {
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case "0":
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if(!int.TryParse(args[1], out int pTime))
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break;
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sess.BumpPing();
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sess.Send(new PongPacket(sess.LastPing));
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break;
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case "1":
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if(sess.User != null)
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break;
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DateTimeOffset aBanned;
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lock(Context.BansAccess)
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aBanned = Context.Bans.Check(sess.RemoteAddress);
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if(aBanned > DateTimeOffset.UtcNow) {
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sess.Send(new AuthFailPacket(AuthFailReason.Banned, aBanned));
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sess.Dispose();
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break;
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}
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if(args.Length < 3 || !long.TryParse(args[1], out long aUserId))
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break;
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FlashiiAuth.AttemptAsync(HttpClient, new FlashiiAuthRequest {
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UserId = aUserId,
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Token = args[2],
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IPAddress = sess.RemoteAddress.ToString(),
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}).ContinueWith(authTask => {
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if(authTask.IsFaulted) {
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Logger.Write($@"<{sess.Id}> Auth task fail: {authTask.Exception}");
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sess.Send(new AuthFailPacket(AuthFailReason.AuthInvalid));
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sess.Dispose();
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return;
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}
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FlashiiAuth auth = authTask.Result;
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if(!auth.Success) {
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Logger.Debug($@"<{sess.Id}> Auth fail: {auth.Reason}");
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sess.Send(new AuthFailPacket(AuthFailReason.AuthInvalid));
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sess.Dispose();
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return;
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}
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ChatUser aUser = Context.Users.Get(auth.UserId);
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if(aUser == null)
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aUser = new ChatUser(auth);
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else {
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aUser.ApplyAuth(auth);
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aUser.Channel?.Send(new UserUpdatePacket(aUser));
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}
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lock(Context.BansAccess)
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aBanned = Context.Bans.Check(aUser);
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if(aBanned > DateTimeOffset.Now) {
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sess.Send(new AuthFailPacket(AuthFailReason.Banned, aBanned));
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sess.Dispose();
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return;
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}
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// Enforce a maximum amount of connections per user
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if(aUser.SessionCount >= MAX_CONNECTIONS) {
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sess.Send(new AuthFailPacket(AuthFailReason.MaxSessions));
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sess.Dispose();
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return;
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}
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// Bumping the ping to prevent upgrading
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sess.BumpPing();
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aUser.AddSession(sess);
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sess.Send(new LegacyCommandResponse(LCR.WELCOME, false, $@"Welcome to Flashii Chat, {aUser.Username}!"));
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if(File.Exists(@"welcome.txt")) {
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IEnumerable<string> lines = File.ReadAllLines(@"welcome.txt").Where(x => !string.IsNullOrWhiteSpace(x));
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string line = lines.ElementAtOrDefault(RNG.Next(lines.Count()));
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if(!string.IsNullOrWhiteSpace(line))
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sess.Send(new LegacyCommandResponse(LCR.WELCOME, false, line));
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}
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Context.HandleJoin(aUser, Context.Channels.DefaultChannel, sess);
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});
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break;
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case "2":
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if(args.Length < 3)
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break;
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ChatUser mUser = sess.User;
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// No longer concats everything after index 1 with \t, no previous implementation did that either
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string messageText = args.ElementAtOrDefault(2);
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if(mUser == null || !mUser.Can(ChatUserPermissions.SendMessage) || string.IsNullOrWhiteSpace(messageText))
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break;
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#if !DEBUG
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// Extra validation step, not necessary at all but enforces proper formatting in SCv1.
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if (!long.TryParse(args[1], out long mUserId) || mUser.UserId != mUserId)
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break;
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#endif
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ChatChannel mChannel = mUser.CurrentChannel;
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if(mChannel == null
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|| !mUser.InChannel(mChannel)
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|| (mUser.IsSilenced && !mUser.Can(ChatUserPermissions.SilenceUser)))
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break;
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if(mUser.Status != ChatUserStatus.Online) {
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mUser.Status = ChatUserStatus.Online;
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mChannel.Send(new UserUpdatePacket(mUser));
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}
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if(messageText.Length > MSG_LENGTH_MAX)
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messageText = messageText[..MSG_LENGTH_MAX];
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messageText = messageText.Trim();
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#if DEBUG
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Logger.Write($@"<{sess.Id} {mUser.Username}> {messageText}");
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#endif
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IChatMessage message = null;
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if(messageText[0] == '/') {
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message = HandleV1Command(messageText, mUser, mChannel);
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if(message == null)
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break;
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}
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message ??= new ChatMessage {
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Target = mChannel,
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TargetName = mChannel.TargetName,
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DateTime = DateTimeOffset.UtcNow,
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Sender = mUser,
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Text = messageText,
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};
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Context.Events.Add(message);
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mChannel.Send(new ChatMessageAddPacket(message));
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break;
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}
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}
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public IChatMessage HandleV1Command(string message, ChatUser user, ChatChannel channel) {
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string[] parts = message[1..].Split(' ');
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string commandName = parts[0].Replace(@".", string.Empty).ToLowerInvariant();
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for(int i = 1; i < parts.Length; i++)
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parts[i] = parts[i].Replace(@"<", @"<")
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.Replace(@">", @">")
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.Replace("\n", @" <br/> ");
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IChatCommand command = null;
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foreach(IChatCommand cmd in Commands)
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if(cmd.IsMatch(commandName)) {
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command = cmd;
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break;
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}
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if(command != null)
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return command.Dispatch(new ChatCommandContext(parts, user, channel));
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switch(commandName) {
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case @"nick": // sets a temporary nickname
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bool setOthersNick = user.Can(ChatUserPermissions.SetOthersNickname);
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if(!setOthersNick && !user.Can(ChatUserPermissions.SetOwnNickname)) {
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user.Send(new LegacyCommandResponse(LCR.COMMAND_NOT_ALLOWED, true, $@"/{commandName}"));
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break;
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}
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ChatUser targetUser = null;
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int offset = 1;
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if(setOthersNick && parts.Length > 1 && long.TryParse(parts[1], out long targetUserId) && targetUserId > 0) {
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targetUser = Context.Users.Get(targetUserId);
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offset = 2;
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}
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targetUser ??= user;
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if(parts.Length < offset) {
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user.Send(new LegacyCommandResponse(LCR.COMMAND_FORMAT_ERROR));
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break;
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}
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string nickStr = string.Join('_', parts.Skip(offset))
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.Replace(' ', '_')
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.Replace("\n", string.Empty)
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.Replace("\r", string.Empty)
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.Replace("\f", string.Empty)
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.Replace("\t", string.Empty)
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.Trim();
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if(nickStr == targetUser.Username)
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nickStr = null;
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else if(nickStr.Length > 15)
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nickStr = nickStr[..15];
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else if(string.IsNullOrEmpty(nickStr))
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nickStr = null;
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if(nickStr != null && Context.Users.Get(nickStr) != null) {
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user.Send(new LegacyCommandResponse(LCR.NAME_IN_USE, true, nickStr));
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break;
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}
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string previousName = targetUser == user ? (targetUser.Nickname ?? targetUser.Username) : null;
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targetUser.Nickname = nickStr;
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channel.Send(new UserUpdatePacket(targetUser, previousName));
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break;
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case @"whisper": // sends a pm to another user
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case @"msg":
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if(parts.Length < 3) {
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user.Send(new LegacyCommandResponse(LCR.COMMAND_FORMAT_ERROR));
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break;
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}
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ChatUser whisperUser = Context.Users.Get(parts[1]);
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if(whisperUser == null) {
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user.Send(new LegacyCommandResponse(LCR.USER_NOT_FOUND, true, parts[1]));
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break;
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}
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if(whisperUser == user)
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break;
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string whisperStr = string.Join(' ', parts.Skip(2));
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whisperUser.Send(new ChatMessageAddPacket(new ChatMessage {
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DateTime = DateTimeOffset.Now,
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Target = whisperUser,
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TargetName = whisperUser.TargetName,
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Sender = user,
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Text = whisperStr,
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Flags = ChatMessageFlags.Private,
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}));
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user.Send(new ChatMessageAddPacket(new ChatMessage {
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DateTime = DateTimeOffset.Now,
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Target = whisperUser,
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TargetName = whisperUser.TargetName,
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Sender = user,
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Text = $@"{whisperUser.DisplayName} {whisperStr}",
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Flags = ChatMessageFlags.Private,
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}));
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break;
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case @"action": // describe an action
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case @"me":
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if(parts.Length < 2)
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break;
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string actionMsg = string.Join(' ', parts.Skip(1));
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return new ChatMessage {
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Target = channel,
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TargetName = channel.TargetName,
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DateTime = DateTimeOffset.UtcNow,
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Sender = user,
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Text = actionMsg,
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Flags = ChatMessageFlags.Action,
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};
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case @"who": // gets all online users/online users in a channel if arg
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StringBuilder whoChanSB = new();
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string whoChanStr = parts.Length > 1 && !string.IsNullOrEmpty(parts[1]) ? parts[1] : string.Empty;
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if(!string.IsNullOrEmpty(whoChanStr)) {
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ChatChannel whoChan = Context.Channels.Get(whoChanStr);
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if(whoChan == null) {
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user.Send(new LegacyCommandResponse(LCR.CHANNEL_NOT_FOUND, true, whoChanStr));
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break;
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}
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if(whoChan.Rank > user.Rank || (whoChan.HasPassword && !user.Can(ChatUserPermissions.JoinAnyChannel))) {
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user.Send(new LegacyCommandResponse(LCR.USERS_LISTING_ERROR, true, whoChanStr));
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break;
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}
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foreach(ChatUser whoUser in whoChan.GetUsers()) {
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whoChanSB.Append(@"<a href=""javascript:void(0);"" onclick=""UI.InsertChatText(this.innerHTML);""");
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if(whoUser == user)
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whoChanSB.Append(@" style=""font-weight: bold;""");
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whoChanSB.Append('>');
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whoChanSB.Append(whoUser.DisplayName);
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whoChanSB.Append(@"</a>, ");
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}
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if(whoChanSB.Length > 2)
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whoChanSB.Length -= 2;
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user.Send(new LegacyCommandResponse(LCR.USERS_LISTING_CHANNEL, false, whoChan.Name, whoChanSB));
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} else {
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foreach(ChatUser whoUser in Context.Users.All()) {
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whoChanSB.Append(@"<a href=""javascript:void(0);"" onclick=""UI.InsertChatText(this.innerHTML);""");
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if(whoUser == user)
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whoChanSB.Append(@" style=""font-weight: bold;""");
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whoChanSB.Append('>');
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whoChanSB.Append(whoUser.DisplayName);
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whoChanSB.Append(@"</a>, ");
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}
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if(whoChanSB.Length > 2)
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whoChanSB.Length -= 2;
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user.Send(new LegacyCommandResponse(LCR.USERS_LISTING_SERVER, false, whoChanSB));
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}
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break;
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// double alias for delchan and delmsg
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// if the argument is a number we're deleting a message
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// if the argument is a string we're deleting a channel
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case @"delete":
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if(parts.Length < 2) {
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user.Send(new LegacyCommandResponse(LCR.COMMAND_FORMAT_ERROR));
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break;
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}
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if(parts[1].All(char.IsDigit))
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goto case @"delmsg";
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goto case @"delchan";
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// anyone can use these
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case @"join": // join a channel
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if(parts.Length < 2)
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break;
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ChatChannel joinChan = Context.Channels.Get(parts[1]);
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if(joinChan == null) {
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user.Send(new LegacyCommandResponse(LCR.CHANNEL_NOT_FOUND, true, parts[1]));
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user.ForceChannel();
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break;
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}
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Context.SwitchChannel(user, joinChan, string.Join(' ', parts.Skip(2)));
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break;
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case @"create": // create a new channel
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if(user.Can(ChatUserPermissions.CreateChannel)) {
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user.Send(new LegacyCommandResponse(LCR.COMMAND_NOT_ALLOWED, true, $@"/{commandName}"));
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break;
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}
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bool createChanHasHierarchy;
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if(parts.Length < 2 || (createChanHasHierarchy = parts[1].All(char.IsDigit) && parts.Length < 3)) {
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user.Send(new LegacyCommandResponse(LCR.COMMAND_FORMAT_ERROR));
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break;
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}
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int createChanHierarchy = 0;
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if(createChanHasHierarchy)
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if(!int.TryParse(parts[1], out createChanHierarchy))
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createChanHierarchy = 0;
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if(createChanHierarchy > user.Rank) {
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user.Send(new LegacyCommandResponse(LCR.INSUFFICIENT_HIERARCHY));
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break;
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}
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string createChanName = string.Join('_', parts.Skip(createChanHasHierarchy ? 2 : 1));
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ChatChannel createChan = new() {
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Name = createChanName,
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IsTemporary = !user.Can(ChatUserPermissions.SetChannelPermanent),
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Rank = createChanHierarchy,
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Owner = user,
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};
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try {
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Context.Channels.Add(createChan);
|
|
} catch(ChannelExistException) {
|
|
user.Send(new LegacyCommandResponse(LCR.CHANNEL_ALREADY_EXISTS, true, createChan.Name));
|
|
break;
|
|
} catch(ChannelInvalidNameException) {
|
|
user.Send(new LegacyCommandResponse(LCR.CHANNEL_NAME_INVALID));
|
|
break;
|
|
}
|
|
|
|
Context.SwitchChannel(user, createChan, createChan.Password);
|
|
user.Send(new LegacyCommandResponse(LCR.CHANNEL_CREATED, false, createChan.Name));
|
|
break;
|
|
case @"delchan": // delete a channel
|
|
if(parts.Length < 2 || string.IsNullOrWhiteSpace(parts[1])) {
|
|
user.Send(new LegacyCommandResponse(LCR.COMMAND_FORMAT_ERROR));
|
|
break;
|
|
}
|
|
|
|
string delChanName = string.Join('_', parts.Skip(1));
|
|
ChatChannel delChan = Context.Channels.Get(delChanName);
|
|
|
|
if(delChan == null) {
|
|
user.Send(new LegacyCommandResponse(LCR.CHANNEL_NOT_FOUND, true, delChanName));
|
|
break;
|
|
}
|
|
|
|
if(!user.Can(ChatUserPermissions.DeleteChannel) && delChan.Owner != user) {
|
|
user.Send(new LegacyCommandResponse(LCR.CHANNEL_DELETE_FAILED, true, delChan.Name));
|
|
break;
|
|
}
|
|
|
|
Context.Channels.Remove(delChan);
|
|
user.Send(new LegacyCommandResponse(LCR.CHANNEL_DELETED, false, delChan.Name));
|
|
break;
|
|
case @"password": // set a password on the channel
|
|
case @"pwd":
|
|
if(!user.Can(ChatUserPermissions.SetChannelPassword) || channel.Owner != user) {
|
|
user.Send(new LegacyCommandResponse(LCR.COMMAND_NOT_ALLOWED, true, $@"/{commandName}"));
|
|
break;
|
|
}
|
|
|
|
string chanPass = string.Join(' ', parts.Skip(1)).Trim();
|
|
|
|
if(string.IsNullOrWhiteSpace(chanPass))
|
|
chanPass = string.Empty;
|
|
|
|
Context.Channels.Update(channel, password: chanPass);
|
|
user.Send(new LegacyCommandResponse(LCR.CHANNEL_PASSWORD_CHANGED, false));
|
|
break;
|
|
case @"privilege": // sets a minimum hierarchy requirement on the channel
|
|
case @"rank":
|
|
case @"priv":
|
|
if(!user.Can(ChatUserPermissions.SetChannelHierarchy) || channel.Owner != user) {
|
|
user.Send(new LegacyCommandResponse(LCR.COMMAND_NOT_ALLOWED, true, $@"/{commandName}"));
|
|
break;
|
|
}
|
|
|
|
if(parts.Length < 2 || !int.TryParse(parts[1], out int chanHierarchy) || chanHierarchy > user.Rank) {
|
|
user.Send(new LegacyCommandResponse(LCR.INSUFFICIENT_HIERARCHY));
|
|
break;
|
|
}
|
|
|
|
Context.Channels.Update(channel, hierarchy: chanHierarchy);
|
|
user.Send(new LegacyCommandResponse(LCR.CHANNEL_HIERARCHY_CHANGED, false));
|
|
break;
|
|
|
|
case @"say": // pretend to be the bot
|
|
if(!user.Can(ChatUserPermissions.Broadcast)) {
|
|
user.Send(new LegacyCommandResponse(LCR.COMMAND_NOT_ALLOWED, true, $@"/{commandName}"));
|
|
break;
|
|
}
|
|
|
|
Context.Send(new LegacyCommandResponse(LCR.BROADCAST, false, string.Join(' ', parts.Skip(1))));
|
|
break;
|
|
case @"delmsg": // deletes a message
|
|
bool deleteAnyMessage = user.Can(ChatUserPermissions.DeleteAnyMessage);
|
|
|
|
if(!deleteAnyMessage && !user.Can(ChatUserPermissions.DeleteOwnMessage)) {
|
|
user.Send(new LegacyCommandResponse(LCR.COMMAND_NOT_ALLOWED, true, $@"/{commandName}"));
|
|
break;
|
|
}
|
|
|
|
if(parts.Length < 2 || !parts[1].All(char.IsDigit) || !long.TryParse(parts[1], out long delSeqId)) {
|
|
user.Send(new LegacyCommandResponse(LCR.COMMAND_FORMAT_ERROR));
|
|
break;
|
|
}
|
|
|
|
IChatEvent delMsg = Context.Events.Get(delSeqId);
|
|
|
|
if(delMsg == null || delMsg.Sender.Rank > user.Rank || (!deleteAnyMessage && delMsg.Sender.UserId != user.UserId)) {
|
|
user.Send(new LegacyCommandResponse(LCR.MESSAGE_DELETE_ERROR));
|
|
break;
|
|
}
|
|
|
|
Context.Events.Remove(delMsg);
|
|
break;
|
|
case @"kick": // kick a user from the server
|
|
case @"ban": // ban a user from the server, this differs from /kick in that it adds all remote address to the ip banlist
|
|
bool isBanning = commandName == @"ban";
|
|
|
|
if(!user.Can(isBanning ? ChatUserPermissions.BanUser : ChatUserPermissions.KickUser)) {
|
|
user.Send(new LegacyCommandResponse(LCR.COMMAND_NOT_ALLOWED, true, $@"/{commandName}"));
|
|
break;
|
|
}
|
|
|
|
ChatUser banUser;
|
|
|
|
if(parts.Length < 2 || (banUser = Context.Users.Get(parts[1])) == null) {
|
|
user.Send(new LegacyCommandResponse(LCR.USER_NOT_FOUND, true, parts.Length < 2 ? @"User" : parts[1]));
|
|
break;
|
|
}
|
|
|
|
if(banUser == user || banUser.Rank >= user.Rank) {
|
|
user.Send(new LegacyCommandResponse(LCR.KICK_NOT_ALLOWED, true, banUser.DisplayName));
|
|
break;
|
|
}
|
|
|
|
lock(Context.BansAccess)
|
|
if(Context.Bans.Check(banUser) > DateTimeOffset.Now) {
|
|
user.Send(new LegacyCommandResponse(LCR.KICK_NOT_ALLOWED, true, banUser.DisplayName));
|
|
break;
|
|
}
|
|
|
|
DateTimeOffset? banUntil = isBanning ? (DateTimeOffset?)DateTimeOffset.MaxValue : null;
|
|
|
|
if(parts.Length > 2) {
|
|
if(!double.TryParse(parts[2], out double silenceSeconds)) {
|
|
user.Send(new LegacyCommandResponse(LCR.COMMAND_FORMAT_ERROR));
|
|
break;
|
|
}
|
|
|
|
banUntil = DateTimeOffset.UtcNow.AddSeconds(silenceSeconds);
|
|
}
|
|
|
|
Context.BanUser(banUser, banUntil, isBanning);
|
|
break;
|
|
case @"pardon":
|
|
case @"unban":
|
|
if(!user.Can(ChatUserPermissions.BanUser | ChatUserPermissions.KickUser)) {
|
|
user.Send(new LegacyCommandResponse(LCR.COMMAND_NOT_ALLOWED, true, $@"/{commandName}"));
|
|
break;
|
|
}
|
|
|
|
if(parts.Length < 2) {
|
|
user.Send(new LegacyCommandResponse(LCR.USER_NOT_BANNED, true, string.Empty));
|
|
break;
|
|
}
|
|
|
|
BannedUser unbanUser;
|
|
lock(Context.BansAccess)
|
|
unbanUser = Context.Bans.GetUser(parts[1]);
|
|
|
|
if(unbanUser == null || unbanUser.Expires <= DateTimeOffset.Now) {
|
|
user.Send(new LegacyCommandResponse(LCR.USER_NOT_BANNED, true, unbanUser?.Username ?? parts[1]));
|
|
break;
|
|
}
|
|
|
|
lock(Context.BansAccess)
|
|
Context.Bans.Remove(unbanUser);
|
|
|
|
user.Send(new LegacyCommandResponse(LCR.USER_UNBANNED, false, unbanUser));
|
|
break;
|
|
case @"pardonip":
|
|
case @"unbanip":
|
|
if(!user.Can(ChatUserPermissions.BanUser | ChatUserPermissions.KickUser)) {
|
|
user.Send(new LegacyCommandResponse(LCR.COMMAND_NOT_ALLOWED, true, $@"/{commandName}"));
|
|
break;
|
|
}
|
|
|
|
if(parts.Length < 2 || !IPAddress.TryParse(parts[1], out IPAddress unbanIP)) {
|
|
user.Send(new LegacyCommandResponse(LCR.USER_NOT_BANNED, true, string.Empty));
|
|
break;
|
|
}
|
|
|
|
lock(Context.BansAccess) {
|
|
if(Context.Bans.Check(unbanIP) <= DateTimeOffset.Now) {
|
|
user.Send(new LegacyCommandResponse(LCR.USER_NOT_BANNED, true, unbanIP));
|
|
break;
|
|
}
|
|
|
|
Context.Bans.Remove(unbanIP);
|
|
}
|
|
|
|
user.Send(new LegacyCommandResponse(LCR.USER_UNBANNED, false, unbanIP));
|
|
break;
|
|
case @"bans": // gets a list of bans
|
|
case @"banned":
|
|
if(!user.Can(ChatUserPermissions.BanUser | ChatUserPermissions.KickUser)) {
|
|
user.Send(new LegacyCommandResponse(LCR.COMMAND_NOT_ALLOWED, true, $@"/{commandName}"));
|
|
break;
|
|
}
|
|
|
|
lock(Context.BansAccess)
|
|
user.Send(new BanListPacket(Context.Bans.All()));
|
|
break;
|
|
case @"silence": // silence a user
|
|
if(!user.Can(ChatUserPermissions.SilenceUser)) {
|
|
user.Send(new LegacyCommandResponse(LCR.COMMAND_NOT_ALLOWED, true, $@"/{commandName}"));
|
|
break;
|
|
}
|
|
|
|
ChatUser silUser;
|
|
|
|
if(parts.Length < 2 || (silUser = Context.Users.Get(parts[1])) == null) {
|
|
user.Send(new LegacyCommandResponse(LCR.USER_NOT_FOUND, true, parts.Length < 2 ? @"User" : parts[1]));
|
|
break;
|
|
}
|
|
|
|
if(silUser == user) {
|
|
user.Send(new LegacyCommandResponse(LCR.SILENCE_SELF));
|
|
break;
|
|
}
|
|
|
|
if(silUser.Rank >= user.Rank) {
|
|
user.Send(new LegacyCommandResponse(LCR.SILENCE_HIERARCHY));
|
|
break;
|
|
}
|
|
|
|
if(silUser.IsSilenced) {
|
|
user.Send(new LegacyCommandResponse(LCR.SILENCE_ALREADY));
|
|
break;
|
|
}
|
|
|
|
DateTimeOffset silenceUntil = DateTimeOffset.MaxValue;
|
|
|
|
if(parts.Length > 2) {
|
|
if(!double.TryParse(parts[2], out double silenceSeconds)) {
|
|
user.Send(new LegacyCommandResponse(LCR.COMMAND_FORMAT_ERROR));
|
|
break;
|
|
}
|
|
|
|
silenceUntil = DateTimeOffset.UtcNow.AddSeconds(silenceSeconds);
|
|
}
|
|
|
|
silUser.SilencedUntil = silenceUntil;
|
|
silUser.Send(new LegacyCommandResponse(LCR.SILENCED, false));
|
|
user.Send(new LegacyCommandResponse(LCR.TARGET_SILENCED, false, silUser.DisplayName));
|
|
break;
|
|
case @"unsilence": // unsilence a user
|
|
if(!user.Can(ChatUserPermissions.SilenceUser)) {
|
|
user.Send(new LegacyCommandResponse(LCR.COMMAND_NOT_ALLOWED, true, $@"/{commandName}"));
|
|
break;
|
|
}
|
|
|
|
ChatUser unsilUser;
|
|
|
|
if(parts.Length < 2 || (unsilUser = Context.Users.Get(parts[1])) == null) {
|
|
user.Send(new LegacyCommandResponse(LCR.USER_NOT_FOUND, true, parts.Length < 2 ? @"User" : parts[1]));
|
|
break;
|
|
}
|
|
|
|
if(unsilUser.Rank >= user.Rank) {
|
|
user.Send(new LegacyCommandResponse(LCR.UNSILENCE_HIERARCHY));
|
|
break;
|
|
}
|
|
|
|
if(!unsilUser.IsSilenced) {
|
|
user.Send(new LegacyCommandResponse(LCR.NOT_SILENCED));
|
|
break;
|
|
}
|
|
|
|
unsilUser.SilencedUntil = DateTimeOffset.MinValue;
|
|
unsilUser.Send(new LegacyCommandResponse(LCR.UNSILENCED, false));
|
|
user.Send(new LegacyCommandResponse(LCR.TARGET_UNSILENCED, false, unsilUser.DisplayName));
|
|
break;
|
|
case @"ip": // gets a user's ip (from all connections in this case)
|
|
case @"whois":
|
|
if(!user.Can(ChatUserPermissions.SeeIPAddress)) {
|
|
user.Send(new LegacyCommandResponse(LCR.COMMAND_NOT_ALLOWED, true, @"/ip"));
|
|
break;
|
|
}
|
|
|
|
ChatUser ipUser;
|
|
if(parts.Length < 2 || (ipUser = Context.Users.Get(parts[1])) == null) {
|
|
user.Send(new LegacyCommandResponse(LCR.USER_NOT_FOUND, true, parts.Length < 2 ? @"User" : parts[1]));
|
|
break;
|
|
}
|
|
|
|
foreach(IPAddress ip in ipUser.RemoteAddresses.Distinct().ToArray())
|
|
user.Send(new LegacyCommandResponse(LCR.IP_ADDRESS, false, ipUser.Username, ip));
|
|
break;
|
|
|
|
case @"shutdown":
|
|
case @"restart":
|
|
if(user.UserId != 1) {
|
|
user.Send(new LegacyCommandResponse(LCR.COMMAND_NOT_ALLOWED, true, $@"/{commandName}"));
|
|
break;
|
|
}
|
|
|
|
if(IsShuttingDown)
|
|
break;
|
|
IsShuttingDown = true;
|
|
|
|
if(commandName == @"restart")
|
|
lock(SessionsLock)
|
|
Sessions.ForEach(s => s.PrepareForRestart());
|
|
|
|
Context.Update();
|
|
Shutdown?.Set();
|
|
break;
|
|
|
|
default:
|
|
user.Send(new LegacyCommandResponse(LCR.COMMAND_NOT_FOUND, true, commandName));
|
|
break;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
~SockChatServer() {
|
|
DoDispose();
|
|
}
|
|
|
|
public void Dispose() {
|
|
DoDispose();
|
|
GC.SuppressFinalize(this);
|
|
}
|
|
|
|
private void DoDispose() {
|
|
if(IsDisposed)
|
|
return;
|
|
IsDisposed = true;
|
|
|
|
lock(SessionsLock)
|
|
Sessions.ForEach(s => s.Dispose());
|
|
|
|
Server?.Dispose();
|
|
Context?.Dispose();
|
|
HttpClient?.Dispose();
|
|
}
|
|
}
|
|
}
|