Alert shared connections (#29405)

* add admin alert for active shared connections

* update wizden config

* review

Content.Server/Connection/ConnectionManager.cs

@@ -72,6 +72,7 @@ public void Initialize()
             _netMgr.Disconnect += OnDisconnected; // DeltaV - Soft whitelist improvements
             _netMgr.AssignUserIdCallback = AssignUserIdCallback;
             _plyMgr.PlayerStatusChanged += PlayerStatusChanged;
+            _plyMgr.PlayerStatusChanged += PlayerStatusChanged;
             // Approval-based IP bans disabled because they don't play well with Happy Eyeballs.
             // _netMgr.HandleApprovalCallback = HandleApproval;
         }

Content.Shared/CCVar/CCVars.cs

@@ -281,6 +281,13 @@ public static readonly CVarDef<bool>
         public static readonly CVarDef<int> SoftMaxPlayers =
             CVarDef.Create("game.soft_max_players", 30, CVar.SERVERONLY | CVar.ARCHIVE);
 
+        /// <summary>
+        /// If a player gets denied connection to the server,
+        /// how long they are forced to wait before attempting to reconnect.
+        /// </summary>
+        public static readonly CVarDef<int> GameServerFullReconnectDelay =
+            CVarDef.Create("game.server_full_reconnect_delay", 30, CVar.SERVERONLY);
+
         /// <summary>
         /// Whether or not panic bunker is currently enabled.
         /// </summary>
@@ -960,6 +967,15 @@ public static readonly CVarDef<bool>
         public static readonly CVarDef<bool> ServerBanErasePlayer =
             CVarDef.Create("admin.server_ban_erase_player", false, CVar.ARCHIVE | CVar.SERVER | CVar.REPLICATED);
 
+        /// <summary>
+        ///     Minimum players sharing a connection required to create an alert. -1 to disable the alert.
+        /// </summary>
+        /// <remarks>
+        ///     If you set this to 0 or 1 then it will alert on every connection, so probably don't do that.
+        /// </remarks>
+        public static readonly CVarDef<int> AdminAlertMinPlayersSharingConnection =
+            CVarDef.Create("admin.alert.min_players_sharing_connection", -1, CVar.SERVERONLY);
+
         /// <summary>
         ///     Minimum explosion intensity to create an admin alert message. -1 to disable the alert.
         /// </summary>

Resources/Locale/en-US/administration/admin-alerts.ftl

@@ -0,0 +1 @@
+admin-alert-shared-connection = {$player} is sharing a connection with {$otherCount} connected player(s): {$otherList}