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361
Server/BanLists.cs Normal file
View file

@ -0,0 +1,361 @@
using System.Net;
using System.Net.Sockets;
using System.Text;
using Shared;
using Shared.Packet.Packets;
namespace Server;
using MUCH = Func<string[], (HashSet<string> failToFind, HashSet<Client> toActUpon, List<(string arg, IEnumerable<string> amb)> ambig)>;
public static class BanLists {
public static bool Enabled {
get {
return Settings.Instance.BanList.Enabled;
}
private set {
Settings.Instance.BanList.Enabled = value;
}
}
private static ISet<string> IPs {
get {
return Settings.Instance.BanList.IpAddresses;
}
}
private static ISet<Guid> Profiles {
get {
return Settings.Instance.BanList.Players;
}
}
private static ISet<string> Stages {
get {
return Settings.Instance.BanList.Stages;
}
}
private static bool IsIPv4(string str) {
return IPAddress.TryParse(str, out IPAddress? ip)
&& ip != null
&& ip.AddressFamily == AddressFamily.InterNetwork;
;
}
public static bool IsIPv4Banned(Client user) {
IPEndPoint? ipv4 = (IPEndPoint?) user.Socket?.RemoteEndPoint;
if (ipv4 == null) { return false; }
return IsIPv4Banned(ipv4.Address);
}
public static bool IsIPv4Banned(IPAddress ipv4) {
return IsIPv4Banned(ipv4.ToString());
}
public static bool IsIPv4Banned(string ipv4) {
return IPs.Contains(ipv4);
}
public static bool IsProfileBanned(Client user) {
return IsProfileBanned(user.Id);
}
public static bool IsProfileBanned(string str) {
if (!Guid.TryParse(str, out Guid id)) { return false; }
return IsProfileBanned(id);
}
public static bool IsProfileBanned(Guid id) {
return Profiles.Contains(id);
}
public static bool IsStageBanned(string stage) {
return Stages.Contains(stage);
}
public static bool IsClientBanned(Client user) {
return IsProfileBanned(user) || IsIPv4Banned(user);
}
private static void BanIPv4(Client user) {
IPEndPoint? ipv4 = (IPEndPoint?) user.Socket?.RemoteEndPoint;
if (ipv4 != null) {
BanIPv4(ipv4.Address);
}
}
private static void BanIPv4(IPAddress ipv4) {
BanIPv4(ipv4.ToString());
}
private static void BanIPv4(string ipv4) {
IPs.Add(ipv4);
}
private static void BanProfile(Client user) {
BanProfile(user.Id);
}
private static void BanProfile(string str) {
if (!Guid.TryParse(str, out Guid id)) { return; }
BanProfile(id);
}
private static void BanProfile(Guid id) {
Profiles.Add(id);
}
private static void BanStage(string stage) {
Stages.Add(stage);
}
private static void BanClient(Client user) {
BanProfile(user);
BanIPv4(user);
}
private static void UnbanIPv4(Client user) {
IPEndPoint? ipv4 = (IPEndPoint?) user.Socket?.RemoteEndPoint;
if (ipv4 != null) {
UnbanIPv4(ipv4.Address);
}
}
private static void UnbanIPv4(IPAddress ipv4) {
UnbanIPv4(ipv4.ToString());
}
private static void UnbanIPv4(string ipv4) {
IPs.Remove(ipv4);
}
private static void UnbanProfile(Client user) {
UnbanProfile(user.Id);
}
private static void UnbanProfile(string str) {
if (!Guid.TryParse(str, out Guid id)) { return; }
UnbanProfile(id);
}
private static void UnbanProfile(Guid id) {
Profiles.Remove(id);
}
private static void UnbanStage(string stage) {
Stages.Remove(stage);
}
private static void Save() {
Settings.SaveSettings(true);
}
public static void Crash(
Client user,
bool permanent = false,
bool dispose_user = true,
int delay_ms = 0
) {
user.Ignored = true;
Task.Run(async () => {
if (delay_ms > 0) {
await Task.Delay(delay_ms);
}
await user.Send(new ChangeStagePacket {
Id = (permanent ? "$agogus/ban4lyfe" : "$among$us/cr4sh%"),
Stage = (permanent ? "$ejected" : "$agogusStage"),
Scenario = (sbyte) (permanent ? 69 : 21),
SubScenarioType = (byte) (permanent ? 21 : 69),
});
if (dispose_user) {
user.Dispose();
}
});
}
private static void CrashMultiple(string[] args, MUCH much) {
foreach (Client user in much(args).toActUpon) {
Crash(user, true);
}
}
public static string HandleBanCommand(string[] args, MUCH much) {
if (args.Length == 0) {
return "Usage: ban {list|enable|disable|player|profile|ip|stage} ...";
}
string cmd = args[0];
args = args.Skip(1).ToArray();
switch (cmd) {
default:
return "Usage: ban {list|enable|disable|player|profile|ip|stage} ...";
case "list":
if (args.Length != 0) {
return "Usage: ban list";
}
StringBuilder list = new StringBuilder();
list.Append("BanList: " + (Enabled ? "enabled" : "disabled"));
if (IPs.Count > 0) {
list.Append("\nBanned IPv4 addresses:\n- ");
list.Append(string.Join("\n- ", IPs));
}
if (Profiles.Count > 0) {
list.Append("\nBanned profile IDs:\n- ");
list.Append(string.Join("\n- ", Profiles));
}
if (Stages.Count > 0) {
list.Append("\nBanned stages:\n- ");
list.Append(string.Join("\n- ", Stages));
}
return list.ToString();
case "enable":
if (args.Length != 0) {
return "Usage: ban enable";
}
Enabled = true;
Save();
return "BanList enabled.";
case "disable":
if (args.Length != 0) {
return "Usage: ban disable";
}
Enabled = false;
Save();
return "BanList disabled.";
case "player":
if (args.Length == 0) {
return "Usage: ban player <* | !* (usernames to not ban...) | (usernames to ban...)>";
}
var res = much(args);
StringBuilder sb = new StringBuilder();
sb.Append(res.toActUpon.Count > 0 ? "Banned players: " + string.Join(", ", res.toActUpon.Select(x => $"\"{x.Name}\"")) : "");
sb.Append(res.failToFind.Count > 0 ? "\nFailed to find matches for: " + string.Join(", ", res.failToFind.Select(x => $"\"{x.ToLower()}\"")) : "");
if (res.ambig.Count > 0) {
res.ambig.ForEach(x => {
sb.Append($"\nAmbiguous for \"{x.arg}\": {string.Join(", ", x.amb.Select(x => $"\"{x}\""))}");
});
}
foreach (Client user in res.toActUpon) {
BanClient(user);
Crash(user, true);
}
Save();
return sb.ToString();
case "profile":
if (args.Length != 1) {
return "Usage: ban profile <profile-id>";
}
if (!Guid.TryParse(args[0], out Guid id)) {
return "Invalid profile ID value!";
}
if (IsProfileBanned(id)) {
return "Profile " + id.ToString() + " is already banned.";
}
BanProfile(id);
CrashMultiple(args, much);
Save();
return "Banned profile: " + id.ToString();
case "ip":
if (args.Length != 1) {
return "Usage: ban ip <ipv4-address>";
}
if (!IsIPv4(args[0])) {
return "Invalid IPv4 address!";
}
if (IsIPv4Banned(args[0])) {
return "IP " + args[0] + " is already banned.";
}
BanIPv4(args[0]);
CrashMultiple(args, much);
Save();
return "Banned ip: " + args[0];
case "stage":
if (args.Length != 1) {
return "Usage: ban stage <stage-name>";
}
string? stage = Shared.Stages.Input2Stage(args[0]);
if (stage == null) {
return "Invalid stage name!";
}
if (IsStageBanned(stage)) {
return "Stage " + stage + " is already banned.";
}
var stages = Shared.Stages
.StagesByInput(args[0])
.Where(s => !IsStageBanned(s))
.ToList()
;
foreach (string s in stages) {
BanStage(s);
}
Save();
return "Banned stage: " + string.Join(", ", stages);
}
}
public static string HandleUnbanCommand(string[] args) {
if (args.Length != 2) {
return "Usage: unban {profile|ip|stage} <value>";
}
string cmd = args[0];
string val = args[1];
switch (cmd) {
default:
return "Usage: unban {profile|ip|stage} <value>";
case "profile":
if (!Guid.TryParse(val, out Guid id)) {
return "Invalid profile ID value!";
}
if (!IsProfileBanned(id)) {
return "Profile " + id.ToString() + " is not banned.";
}
UnbanProfile(id);
Save();
return "Unbanned profile: " + id.ToString();
case "ip":
if (!IsIPv4(val)) {
return "Invalid IPv4 address!";
}
if (!IsIPv4Banned(val)) {
return "IP " + val + " is not banned.";
}
UnbanIPv4(val);
Save();
return "Unbanned ip: " + val;
case "stage":
string stage = Shared.Stages.Input2Stage(val) ?? val;
if (!IsStageBanned(stage)) {
return "Stage " + stage + " is not banned.";
}
var stages = Shared.Stages
.StagesByInput(val)
.Where(IsStageBanned)
.ToList()
;
foreach (string s in stages) {
UnbanStage(s);
}
Save();
return "Unbanned stage: " + string.Join(", ", stages);
}
}
}

12
Server/Client.cs
View file

@ -12,6 +12,7 @@ namespace Server;
public class Client : IDisposable {
public readonly ConcurrentDictionary<string, object?> Metadata = new ConcurrentDictionary<string, object?>(); // can be used to store any information about a player
public bool Connected = false;
public bool Ignored = false;
public CostumePacket? CurrentCostume = null; // required for proper client sync
public string Name {
get => Logger.Name;
@ -76,6 +77,17 @@ public class Client : IDisposable {
await Socket!.SendAsync(data[..(Constants.HeaderSize + header.PacketSize)], SocketFlags.None);
}
public void CleanMetadataOnNewConnection() {
object? tmp;
Metadata.TryRemove("time", out tmp);
Metadata.TryRemove("seeking", out tmp);
Metadata.TryRemove("lastCostumePacket", out tmp);
Metadata.TryRemove("lastCapturePacket", out tmp);
Metadata.TryRemove("lastTagPacket", out tmp);
Metadata.TryRemove("lastGamePacket", out tmp);
Metadata.TryRemove("lastPlayerPacket", out tmp);
}
public static bool operator ==(Client? left, Client? right) {
return left is { } leftClient && right is { } rightClient && leftClient.Id == rightClient.Id;
}

163
Server/Program.cs
View file

@ -62,23 +62,11 @@ async Task LoadShines()
await LoadShines();
server.ClientJoined += (c, _) => {
if (Settings.Instance.BanList.Enabled
&& (Settings.Instance.BanList.Players.Contains(c.Id)
|| Settings.Instance.BanList.IpAddresses.Contains(
((IPEndPoint) c.Socket!.RemoteEndPoint!).Address.ToString())))
throw new Exception($"Banned player attempted join: {c.Name}");
c.Metadata["shineSync"] = new ConcurrentBag<int>();
c.Metadata["loadedSave"] = false;
c.Metadata["scenario"] = (byte?) 0;
c.Metadata["2d"] = false;
c.Metadata["speedrun"] = false;
foreach (Client client in server.ClientsConnected) {
try {
c.Send((GamePacket) client.Metadata["lastGamePacket"]!, client).Wait();
} catch {
// lol who gives a fuck
}
}
};
async Task ClientSyncShineBag(Client client) {
@ -115,13 +103,41 @@ timer.Start();
float MarioSize(bool is2d) => is2d ? 180 : 160;
void flipPlayer(Client c, ref PlayerPacket pp) {
pp.Position += Vector3.UnitY * MarioSize((bool) c.Metadata["2d"]!);
pp.Rotation *= (
Quaternion.CreateFromRotationMatrix(Matrix4x4.CreateRotationX(MathF.PI))
* Quaternion.CreateFromRotationMatrix(Matrix4x4.CreateRotationY(MathF.PI))
);
};
void logError(Task x) {
if (x.Exception != null) {
consoleLogger.Error(x.Exception.ToString());
}
};
server.PacketHandler = (c, p) => {
switch (p) {
case GamePacket gamePacket: {
if (BanLists.Enabled && BanLists.IsStageBanned(gamePacket.Stage)) {
c.Logger.Warn($"Crashing player for entering banned stage {gamePacket.Stage}.");
BanLists.Crash(c, false, false, 500);
return false;
}
c.Logger.Info($"Got game packet {gamePacket.Stage}->{gamePacket.ScenarioNum}");
// reset lastPlayerPacket on stage changes
object? old = null;
c.Metadata.TryGetValue("lastGamePacket", out old);
if (old != null && ((GamePacket) old).Stage != gamePacket.Stage) {
c.Metadata["lastPlayerPacket"] = null;
}
c.Metadata["scenario"] = gamePacket.ScenarioNum;
c.Metadata["2d"] = gamePacket.Is2d;
c.Metadata["lastGamePacket"] = gamePacket;
switch (gamePacket.Stage) {
case "CapWorldHomeStage" when gamePacket.ScenarioNum == 0:
c.Metadata["speedrun"] = true;
@ -145,8 +161,7 @@ server.PacketHandler = (c, p) => {
server.BroadcastReplace(gamePacket, c, (from, to, gp) => {
gp.ScenarioNum = (byte?) to.Metadata["scenario"] ?? 200;
#pragma warning disable CS4014
to.Send(gp, from)
.ContinueWith(x => { if (x.Exception != null) { consoleLogger.Error(x.Exception.ToString()); } });
to.Send(gp, from).ContinueWith(logError);
#pragma warning restore CS4014
});
return false;
@ -156,14 +171,23 @@ server.PacketHandler = (c, p) => {
}
case TagPacket tagPacket: {
// c.Logger.Info($"Got tag packet: {tagPacket.IsIt}");
c.Metadata["lastTagPacket"] = tagPacket;
if ((tagPacket.UpdateType & TagPacket.TagUpdate.State) != 0) c.Metadata["seeking"] = tagPacket.IsIt;
if ((tagPacket.UpdateType & TagPacket.TagUpdate.Time) != 0)
c.Metadata["time"] = new Time(tagPacket.Minutes, tagPacket.Seconds, DateTime.Now);
break;
}
case CapturePacket capturePacket: {
// c.Logger.Info($"Got capture packet: {capturePacket.ModelName}");
c.Metadata["lastCapturePacket"] = capturePacket;
break;
}
case CostumePacket costumePacket:
c.Logger.Info($"Got costume packet: {costumePacket.BodyName}, {costumePacket.CapName}");
c.Metadata["lastCostumePacket"] = costumePacket;
c.CurrentCostume = costumePacket;
#pragma warning disable CS4014
ClientSyncShineBag(c); //no point logging since entire def has try/catch
@ -183,34 +207,36 @@ server.PacketHandler = (c, p) => {
break;
}
case PlayerPacket playerPacket when Settings.Instance.Flip.Enabled
case PlayerPacket playerPacket: {
c.Metadata["lastPlayerPacket"] = playerPacket;
// flip for all
if ( Settings.Instance.Flip.Enabled
&& Settings.Instance.Flip.Pov is FlipOptions.Both or FlipOptions.Others
&& Settings.Instance.Flip.Players.Contains(c.Id): {
playerPacket.Position += Vector3.UnitY * MarioSize((bool) c.Metadata["2d"]!);
playerPacket.Rotation *= Quaternion.CreateFromRotationMatrix(Matrix4x4.CreateRotationX(MathF.PI))
* Quaternion.CreateFromRotationMatrix(Matrix4x4.CreateRotationY(MathF.PI));
&& Settings.Instance.Flip.Players.Contains(c.Id)
) {
flipPlayer(c, ref playerPacket);
#pragma warning disable CS4014
server.Broadcast(playerPacket, c)
.ContinueWith(x => { if (x.Exception != null) { consoleLogger.Error(x.Exception.ToString()); } });
server.Broadcast(playerPacket, c).ContinueWith(logError);
#pragma warning restore CS4014
return false;
}
case PlayerPacket playerPacket when Settings.Instance.Flip.Enabled
// flip only for specific clients
if ( Settings.Instance.Flip.Enabled
&& Settings.Instance.Flip.Pov is FlipOptions.Both or FlipOptions.Self
&& !Settings.Instance.Flip.Players.Contains(c.Id): {
&& !Settings.Instance.Flip.Players.Contains(c.Id)
) {
server.BroadcastReplace(playerPacket, c, (from, to, sp) => {
if (Settings.Instance.Flip.Players.Contains(to.Id)) {
sp.Position += Vector3.UnitY * MarioSize((bool) c.Metadata["2d"]!);
sp.Rotation *= Quaternion.CreateFromRotationMatrix(Matrix4x4.CreateRotationX(MathF.PI))
* Quaternion.CreateFromRotationMatrix(Matrix4x4.CreateRotationY(MathF.PI));
flipPlayer(c, ref sp);
}
#pragma warning disable CS4014
to.Send(sp, from)
.ContinueWith(x => { if (x.Exception != null) { consoleLogger.Error(x.Exception.ToString()); } });
to.Send(sp, from).ContinueWith(logError);
#pragma warning restore CS4014
});
return false;
}
break;
}
}
return true; // Broadcast packet to all other clients
@ -220,41 +246,52 @@ server.PacketHandler = (c, p) => {
HashSet<string> failToFind = new();
HashSet<Client> toActUpon;
List<(string arg, IEnumerable<string> amb)> ambig = new();
if (args[0] == "*")
if (args[0] == "*") {
toActUpon = new(server.Clients.Where(c => c.Connected));
}
else {
toActUpon = args[0] == "!*" ? new(server.Clients.Where(c => c.Connected)) : new();
for (int i = (args[0] == "!*" ? 1 : 0); i < args.Length; i++) {
string arg = args[i];
IEnumerable<Client> search = server.Clients.Where(c => c.Connected &&
(c.Name.ToLower().StartsWith(arg.ToLower()) || (Guid.TryParse(arg, out Guid res) && res == c.Id)));
if (!search.Any())
IEnumerable<Client> search = server.Clients.Where(c => c.Connected && (
c.Name.ToLower().StartsWith(arg.ToLower())
|| (Guid.TryParse(arg, out Guid res) && res == c.Id)
|| (IPAddress.TryParse(arg, out IPAddress? ip) && ip.Equals(((IPEndPoint) c.Socket!.RemoteEndPoint!).Address))
));
if (!search.Any()) {
failToFind.Add(arg); //none found
}
else if (search.Count() > 1) {
Client? exact = search.FirstOrDefault(x => x.Name == arg);
if (!ReferenceEquals(exact, null)) {
//even though multiple matches, since exact match, it isn't ambiguous
if (args[0] == "!*")
if (args[0] == "!*") {
toActUpon.Remove(exact);
else
toActUpon.Add(exact);
}
else {
if (!ambig.Any(x => x.arg == arg))
toActUpon.Add(exact);
}
}
else {
if (!ambig.Any(x => x.arg == arg)) {
ambig.Add((arg, search.Select(x => x.Name))); //more than one match
foreach (var rem in search.ToList()) //need copy because can't remove from list while iterating over it
}
foreach (var rem in search.ToList()) { //need copy because can't remove from list while iterating over it
toActUpon.Remove(rem);
}
}
}
else {
//only one match, so autocomplete
if (args[0] == "!*")
if (args[0] == "!*") {
toActUpon.Remove(search.First());
else
}
else {
toActUpon.Add(search.First());
}
}
}
}
return (failToFind, toActUpon, ambig);
}
@ -298,54 +335,14 @@ CommandHandler.RegisterCommand("crash", args => {
}
foreach (Client user in res.toActUpon) {
Task.Run(async () => {
await user.Send(new ChangeStagePacket {
Id = "$among$us/SubArea",
Stage = "$agogusStage",
Scenario = 21,
SubScenarioType = 69 // invalid id
});
user.Dispose();
});
BanLists.Crash(user);
}
return sb.ToString();
});
CommandHandler.RegisterCommand("ban", args => {
if (args.Length == 0) {
return "Usage: ban <* | !* (usernames to not ban...) | (usernames to ban...)>";
}
var res = MultiUserCommandHelper(args);
StringBuilder sb = new StringBuilder();
sb.Append(res.toActUpon.Count > 0 ? "Banned: " + string.Join(", ", res.toActUpon.Select(x => $"\"{x.Name}\"")) : "");
sb.Append(res.failToFind.Count > 0 ? "\nFailed to find matches for: " + string.Join(", ", res.failToFind.Select(x => $"\"{x.ToLower()}\"")) : "");
if (res.ambig.Count > 0) {
res.ambig.ForEach(x => {
sb.Append($"\nAmbiguous for \"{x.arg}\": {string.Join(", ", x.amb.Select(x => $"\"{x}\""))}");
});
}
foreach (Client user in res.toActUpon) {
Task.Run(async () => {
await user.Send(new ChangeStagePacket {
Id = "$agogus/banned4lyfe",
Stage = "$ejected",
Scenario = 69,
SubScenarioType = 21 // invalid id
});
IPEndPoint? endpoint = (IPEndPoint?) user.Socket?.RemoteEndPoint;
Settings.Instance.BanList.Players.Add(user.Id);
if (endpoint != null) Settings.Instance.BanList.IpAddresses.Add(endpoint.ToString());
user.Dispose();
});
}
Settings.SaveSettings();
return sb.ToString();
});
CommandHandler.RegisterCommand("ban", args => { return BanLists.HandleBanCommand(args, (args) => MultiUserCommandHelper(args)); });
CommandHandler.RegisterCommand("unban", args => { return BanLists.HandleUnbanCommand(args); });
CommandHandler.RegisterCommand("send", args => {
const string optionUsage = "Usage: send <stage> <id> <scenario[-1..127]> <player/*>";
@ -651,7 +648,7 @@ Task.Run(() => {
}
}
}
}).ContinueWith(x => { if (x.Exception != null) { consoleLogger.Error(x.Exception.ToString()); } });
}).ContinueWith(logError);
#pragma warning restore CS4014
await server.Listen(cts.Token);

74
Server/Server.cs
View file

@ -29,6 +29,11 @@ public class Server {
Socket socket = token.HasValue ? await serverSocket.AcceptAsync(token.Value) : await serverSocket.AcceptAsync();
socket.SetSocketOption(SocketOptionLevel.Tcp, SocketOptionName.NoDelay, true);
if (BanLists.Enabled && BanLists.IsIPv4Banned(((IPEndPoint) socket.RemoteEndPoint!).Address!)) {
Logger.Warn($"Ignoring banned IPv4 address {socket.RemoteEndPoint}");
continue;
}
Logger.Notify($"Accepted connection for client {socket.RemoteEndPoint}");
try {
@ -167,6 +172,11 @@ public class Server {
break;
}
if (client.Ignored) {
memory.Dispose();
continue;
}
// connection initialization
if (first) {
first = false;
@ -174,6 +184,18 @@ public class Server {
ConnectPacket connect = new ConnectPacket();
connect.Deserialize(memory.Memory.Span[packetRange]);
bool wasFirst = connect.ConnectionType == ConnectPacket.ConnectionTypes.FirstConnection;
if (BanLists.Enabled && BanLists.IsProfileBanned(header.Id)) {
client.Id = header.Id;
client.Name = connect.ClientName;
client.Ignored = true;
client.Logger.Warn($"Ignoring banned profile ID {header.Id}");
memory.Dispose();
continue;
}
lock (Clients) {
if (Clients.Count(x => x.Connected) == Settings.Instance.Server.MaxPlayers) {
client.Logger.Error($"Turned away as server is at max clients");
@ -218,25 +240,33 @@ public class Server {
// done disconnecting and removing stale clients with the same id
ClientJoined?.Invoke(client, connect);
// a new connection, not a reconnect, for an existing client
} else if (wasFirst) {
client.CleanMetadataOnNewConnection();
}
}
// for all other clients that are already connected
List<Client> otherConnectedPlayers = Clients.FindAll(c => c.Id != header.Id && c.Connected && c.Socket != null);
await Parallel.ForEachAsync(otherConnectedPlayers, async (other, _) => {
IMemoryOwner<byte> tempBuffer = MemoryPool<byte>.Shared.RentZero(Constants.HeaderSize + (other.CurrentCostume.HasValue ? Math.Max(connect.Size, other.CurrentCostume.Value.Size) : connect.Size));
// make the other client known to the (new) client
PacketHeader connectHeader = new PacketHeader {
Id = other.Id,
Type = PacketType.Connect,
PacketSize = connect.Size
PacketSize = connect.Size,
};
connectHeader.Serialize(tempBuffer.Memory.Span[..Constants.HeaderSize]);
ConnectPacket connectPacket = new ConnectPacket {
ConnectionType = ConnectPacket.ConnectionTypes.FirstConnection, // doesn't matter what it is
MaxPlayers = Settings.Instance.Server.MaxPlayers,
ClientName = other.Name
ClientName = other.Name,
};
connectPacket.Serialize(tempBuffer.Memory.Span[Constants.HeaderSize..]);
await client.Send(tempBuffer.Memory[..(Constants.HeaderSize + connect.Size)], null);
// tell the (new) client what costume the other client has
if (other.CurrentCostume.HasValue) {
connectHeader.Type = PacketType.Costume;
connectHeader.PacketSize = other.CurrentCostume.Value.Size;
@ -246,9 +276,17 @@ public class Server {
}
tempBuffer.Dispose();
// make the other client reset their puppet cache for this client, if it is a new connection (after restart)
if (wasFirst) {
await SendEmptyPackets(client, other);
}
});
Logger.Info($"Client {client.Name} ({client.Id}/{remote}) connected.");
// send missing or outdated packets from others to the new client
await ResendPackets(client);
} else if (header.Id != client.Id && client.Id != Guid.Empty) {
throw new Exception($"Client {client.Name} sent packet with invalid client id {header.Id} instead of {client.Id}");
}
@ -310,6 +348,38 @@ public class Server {
#pragma warning restore CS4014
}
private async Task ResendPackets(Client client) {
async Task trySend<T>(Client other, string packetType) where T : struct, IPacket {
if (! other.Metadata.ContainsKey(packetType)) { return; }
try {
await client.Send((T) other.Metadata[packetType]!, other);
}
catch {
// lol who gives a fuck
}
};
await Parallel.ForEachAsync(this.ClientsConnected, async (other, _) => {
if (client.Id == other.Id) { return; }
await trySend<CostumePacket>(other, "lastCostumePacket");
await trySend<CapturePacket>(other, "lastCapturePacket");
await trySend<TagPacket>(other, "lastTagPacket");
await trySend<GamePacket>(other, "lastGamePacket");
await trySend<PlayerPacket>(other, "lastPlayerPacket");
});
}
private async Task SendEmptyPackets(Client client, Client other) {
await other.Send(new TagPacket {
UpdateType = TagPacket.TagUpdate.State | TagPacket.TagUpdate.Time,
IsIt = false,
Seconds = 0,
Minutes = 0,
}, client);
await other.Send(new CapturePacket {
ModelName = "",
}, client);
}
private static PacketHeader GetHeader(Span<byte> data) {
//no need to error check, the client will disconnect when the packet is invalid :)
PacketHeader header = new PacketHeader();

15
Server/Settings.cs
View file

@ -30,10 +30,10 @@ public class Settings {
LoadHandler?.Invoke();
}
public static void SaveSettings() {
public static void SaveSettings(bool silent = false) {
try {
File.WriteAllText("settings.json", JsonConvert.SerializeObject(Instance, Formatting.Indented, new StringEnumConverter(new CamelCaseNamingStrategy())));
Logger.Info("Saved settings to settings.json");
if (!silent) { Logger.Info("Saved settings to settings.json"); }
}
catch (Exception e) {
Logger.Error($"Failed to save settings.json {e}");
@ -43,7 +43,7 @@ public class Settings {
public ServerTable Server { get; set; } = new ServerTable();
public FlipTable Flip { get; set; } = new FlipTable();
public ScenarioTable Scenario { get; set; } = new ScenarioTable();
public BannedPlayers BanList { get; set; } = new BannedPlayers();
public BanListTable BanList { get; set; } = new BanListTable();
public DiscordTable Discord { get; set; } = new DiscordTable();
public ShineTable Shines { get; set; } = new ShineTable();
public PersistShinesTable PersistShines { get; set; } = new PersistShinesTable();
@ -58,15 +58,16 @@ public class Settings {
public bool MergeEnabled { get; set; } = false;
}
public class BannedPlayers {
public class BanListTable {
public bool Enabled { get; set; } = false;
public List<Guid> Players { get; set; } = new List<Guid>();
public List<string> IpAddresses { get; set; } = new List<string>();
public ISet<Guid> Players { get; set; } = new SortedSet<Guid>();
public ISet<string> IpAddresses { get; set; } = new SortedSet<string>();
public ISet<string> Stages { get; set; } = new SortedSet<string>();
}
public class FlipTable {
public bool Enabled { get; set; } = true;
public List<Guid> Players { get; set; } = new List<Guid>();
public ISet<Guid> Players { get; set; } = new SortedSet<Guid>();
public FlipOptions Pov { get; set; } = FlipOptions.Both;
}

34
Shared/Stages.cs
View file

@ -11,7 +11,7 @@ public static class Stages {
return mapName;
}
// exact stage value
if (Stage2Alias.ContainsKey(input)) {
if (IsStage(input)) {
return input;
}
// force input value with a !
@ -29,6 +29,32 @@ public static class Stages {
return result;
}
public static bool IsAlias(string input) {
return Alias2Stage.ContainsKey(input);
}
public static bool IsStage(string input) {
return Stage2Alias.ContainsKey(input);
}
public static IEnumerable<string> StagesByInput(string input) {
if (IsAlias(input)) {
var stages = Stage2Alias
.Where(e => e.Value == input)
.Select(e => e.Key)
;
foreach (string stage in stages) {
yield return stage;
}
}
else {
string? stage = Input2Stage(input);
if (stage != null) {
yield return stage;
}
}
}
public static readonly Dictionary<string, string> Alias2Stage = new Dictionary<string, string>() {
{ "cap", "CapWorldHomeStage" },
{ "cascade", "WaterfallWorldHomeStage" },
@ -38,8 +64,8 @@ public static class Stages {
{ "cloud", "CloudWorldHomeStage" },
{ "lost", "ClashWorldHomeStage" },
{ "metro", "CityWorldHomeStage" },
{ "sea", "SeaWorldHomeStage" },
{ "snow", "SnowWorldHomeStage" },
{ "sea", "SeaWorldHomeStage" },
{ "lunch", "LavaWorldHomeStage" },
{ "ruined", "BossRaidWorldHomeStage" },
{ "bowser", "SkyWorldHomeStage" },
@ -59,8 +85,8 @@ public static class Stages {
{ "cloud", "Cloud Kingdom" },
{ "lost", "Lost Kingdom" },
{ "metro", "Metro Kingdom" },
{ "sea", "Snow Kingdom" },
{ "snow", "Seaside Kingdom" },
{ "snow", "Snow Kingdom" },
{ "sea", "Seaside Kingdom" },
{ "lunch", "Luncheon Kingdom" },
{ "ruined", "Ruined Kingdom" },
{ "bowser", "Bowser's Kingdom" },