[MIRROR] skip limits for chunked messages (#12144)

Co-authored-by: Kashargul <144968721+Kashargul@users.noreply.github.com>

code/modules/client/client procs.dm

@@ -60,7 +60,7 @@ GLOBAL_LIST_INIT(blacklisted_builds, list(
 
 	// Rate limiting
 	var/mtl = CONFIG_GET(number/minute_topic_limit)
-	if(href_list["window_id"] != "statbrowser") //Deviation from TG. Our statbrowser has so many commands that logging in as a borg can cause it to rate limit you. This needs fixing eventually.
+	if(!bypass_topic_limit(href_list))
 		if (!check_rights_for(src, R_HOLDER) && mtl)
 			var/minute = round(world.time, 600)
 			if (!topiclimiter)
@@ -94,7 +94,7 @@ GLOBAL_LIST_INIT(blacklisted_builds, list(
 				return
 
 	//search the href for script injection
-	if( findtext(href,"<script",1,0) )
+	if(findtext(href,"<script",1,0) )
 		log_world("Attempted use of scripts within a topic call, by [src]")
 		message_admins("Attempted use of scripts within a topic call, by [src]")
 		return

code/modules/tgui/external.dm

@@ -215,6 +215,20 @@
 	// Close all tgui datums based on window_id.
 	SStgui.force_close_window(user, window_id)
 
+/**
+ * A few edge cases that need to bypass topic limits currently, comment why!
+ *
+ * returns TRUE for bypass
+ */
+/proc/bypass_topic_limit(href_list)
+	// Deviation from TG. Our statbrowser has so many commands that logging in as a borg can cause it to rate limit you. This needs fixing eventually.
+	if(href_list["window_id"] == "statbrowser")
+		return TRUE
+	// Chunked messages will exceed the limit
+	if(href_list["tgui"] && href_list["totalPackets"])
+		return TRUE
+	return FALSE
+
 /**
  * Middleware for /client/Topic.
  *