Add basic flood protection to server.

diff --git a/plomrogue/io.py b/plomrogue/io.py
index 8e0f9bf530548572eb7c07d389d7188e19af47d1..68f580ba3fa689b78075a175ed4a2e880128235f 100644 (file)
--- a/plomrogue/io.py
+++ b/plomrogue/io.py
@@ -14,10 +14,21 @@ class GameIO():
         self.servers = []
 
     def loop(self, q):
-        """Handle commands coming through queue q, run game, send results back."""
+        """Handle commands coming through queue q, run game, send results back.
+
+        As basic flood protection, Only accepts one command per connection per
+        1/100 of a second.
+
+        """
+        import time
+        potential_flooders = {}
         while True:
             try:
                 command, connection_id = q.get(timeout=0.001)
+                if connection_id in potential_flooders:
+                    if int(time.time() * 100) == potential_flooders[connection_id]:
+                        continue
+                potential_flooders[connection_id] = int(time.time() * 100)
                 self.handle_input(connection_id, command)
             except queue.Empty:
                 self.game.run_tick()