add strip_otr.py

closes #148

modules/strip_otr.py

@@ -0,0 +1,15 @@
+from src import EventManager, ModuleManager, utils
+
+# Strip magic whitespace string from the end of messages.
+# OTR uses this string to advertise, over plaintext, that the sending user
+# supports OTR.
+
+MAGIC = " \t  \t\t\t\t \t \t \t    \t\t  \t \t"
+
+class Module(ModuleManager.BaseModule):
+    @utils.hook("raw.received.privmsg")
+    @utils.kwarg("priority", EventManager.PRIORITY_HIGH)
+    def on_message(self, event):
+        message = event["line"].args.get(1)
+        if message.endswith(MAGIC):
+            event["line"].args[1] = message.rsplit(MAGIC, 1)[0]