the files

2026-10-14 06:59:51 +02:00
parent f6175893fc
commit 2040419525
1855 changed files with 6735668 additions and 0 deletions
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+using Microsoft.AspNetCore.Mvc;
+using Campus_live_rewrite.api.server;
+
+namespace Campus_live_rewrite.Controllers
+{
+    /// <summary>
+    /// CampusNet's room-chat check (CampusNet Services/ChatGuard.cs). Room chat crosses the game
+    /// server as RPC event 36 carrying "&lt;noparse&gt;text&lt;/noparse&gt;"; a normal client has
+    /// already run that text through POST /api/sanitize/v1, so it arrives masked. Text our filter
+    /// WOULD still change therefore never went through it - chat-prompt text echoed into chat by a
+    /// circuit, or a client that skips the filter (seen live: a slur in plain text, 2026-09-26).
+    /// Answers "bypass" for such text (CampusNet then drops the message) and disconnects the sender
+    /// with a timeout (AutoEnforce). Local callers only, like /photon/placement: loopback and no
+    /// X-Forwarded-For, i.e. not a request the public proxy passed on.
+    /// </summary>
+    public class ChatGuardController : ControllerBase
+    {
+        [HttpPost("/photon/chatguard")]
+        public IActionResult Check()
+        {
+            var ip = HttpContext.Connection.RemoteIpAddress;
+            bool local = ip != null && System.Net.IPAddress.IsLoopback(ip)
+                         && string.IsNullOrEmpty(Request.Headers["X-Forwarded-For"].ToString());
+            if (!local) return NotFound();
+
+            string id = "", room = "", text = "";
+            try
+            {
+                if (Request.HasFormContentType)
+                {
+                    id = Request.Form["id"].ToString();
+                    room = Request.Form["room"].ToString();
+                    text = Request.Form["text"].ToString();
+                }
+            }
+            catch { }
+            if (!ulong.TryParse(id, out var playerId) || string.IsNullOrEmpty(text)) return Content("ok", "text/plain");
+            if (ConfigCampus.AllowSwears || !ConfigCampus.ChatBypassEnforce) return Content("ok", "text/plain");
+
+            // Would our own filter change it? A legit client's text is already filtered, so
+            // filtering it again changes nothing.
+            string filtered = Campus_live_rewrite.api.server.Classes.Sanitize.SanitizeMessage(text, '*');
+            if (filtered == text) return Content("ok", "text/plain");
+
+            Console.WriteLine($"[chat-guard] {playerId} sent unfiltered chat in '{room}': \"{text}\" (filtered: \"{filtered}\") - dropped");
+            AutoEnforce.DisconnectAndTimeout(playerId, Moderation_Detail.ReportCategory.Harassment, ConfigCampus.ChatBypassTimeoutSeconds,
+                "Disconnected and timed out: you sent chat that skipped the chat filter.",
+                $"chat filter bypass in '{room}': \"{(text.Length > 200 ? text[..200] + "..." : text)}\"");
+            return Content("bypass", "text/plain");
+        }
+    }
+}