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Add anti-flood protection

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This commit is contained in:
Gustas
2022-07-12 18:55:57 +03:00
committed by abcdefg30
parent ac623d784a
commit 58fcffa429
4 changed files with 109 additions and 19 deletions
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19
OpenRA.Game/Server/Server.cs
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@@ -79,6 +79,7 @@ namespace OpenRA.Server
GameInformation gameInfo;
readonly List<GameInformation.Player> worldPlayers = new List<GameInformation.Player>();
readonly Stopwatch pingUpdated = Stopwatch.StartNew();
readonly PlayerMessageTracker playerMessageTracker;
[TranslationReference]
static readonly string CustomRules = "custom-rules";
@@ -128,9 +129,6 @@ namespace OpenRA.Server
[TranslationReference("command")]
static readonly string UnknownServerCommand = "unknown-server-command";
[TranslationReference("remaining")]
static readonly string ChatDisabled = "chat-disabled";
[TranslationReference("player")]
static readonly string LobbyDisconnected = "lobby-disconnected";
@@ -316,6 +314,8 @@ namespace OpenRA.Server
Map = ModData.MapCache[settings.Map];
MapStatusCache = new MapStatusCache(modData, MapStatusChanged, type == ServerType.Dedicated && settings.EnableLintChecks);
playerMessageTracker = new PlayerMessageTracker(this, DispatchOrdersToClient, SendLocalizedMessageTo);
LobbyInfo = new Session
{
GlobalSettings =
@@ -558,8 +558,8 @@ namespace OpenRA.Server
newConn.Validated = true;
// Disable chat UI to stop the client sending messages that we know we will reject
if (!client.IsAdmin && Settings.JoinChatDelay > 0)
DispatchOrdersToClient(newConn, 0, 0, new Order("DisableChatEntry", null, false) { ExtraData = (uint)Settings.JoinChatDelay }.Serialize());
if (!client.IsAdmin && Settings.FloodLimitJoinCooldown > 0)
playerMessageTracker.DisableChatUI(newConn, Settings.FloodLimitJoinCooldown);
Log.Write("server", $"Client {newConn.PlayerIndex}: Accepted connection from {newConn.EndPoint}.");
@@ -1006,14 +1006,7 @@ namespace OpenRA.Server
case "Chat":
{
var isAdmin = GetClient(conn)?.IsAdmin ?? false;
var connected = conn.ConnectionTimer.ElapsedMilliseconds;
if (!isAdmin && connected < Settings.JoinChatDelay)
{
var remaining = (Settings.JoinChatDelay - connected + 999) / 1000;
SendLocalizedMessageTo(conn, ChatDisabled, Translation.Arguments("remaining", remaining));
}
else
if (Type == ServerType.Local || !playerMessageTracker.IsPlayerAtFloodLimit(conn))
DispatchOrdersToClients(conn, 0, o.Serialize());
break;