use LenientDecodingLineBuffer in bot guts

should make the bot more resilient to clients that send non-unicode text

dr_botzo/ircbot/bot.py

@@ -16,6 +16,7 @@ import time
 
 from django.conf import settings
 
+import irc.buffer
 import irc.client
 from irc.connection import Factory
 from irc.dict import IRCDict
@@ -43,6 +44,17 @@ class PrioritizedRegexHandler(collections.namedtuple('Base', ('priority', 'regex
         return self.priority < other.priority
 
 
+class LenientServerConnection(irc.client.ServerConnection):
+    """
+    An IRC server connection.
+
+    ServerConnection objects are instantiated by calling the server
+    method on a Reactor object.
+    """
+
+    buffer_class = irc.buffer.LenientDecodingLineBuffer
+
+
 class DrReactor(irc.client.Reactor):
     """Customize the basic IRC library's Reactor with more features."""
 
@@ -56,6 +68,14 @@ class DrReactor(irc.client.Reactor):
                                         on_schedule=on_schedule)
         self.regex_handlers = {}
 
+    def server(self):
+        """Creates and returns a ServerConnection object."""
+
+        c = LenientServerConnection(self)
+        with self.mutex:
+            self.connections.append(c)
+        return c
+
     def add_global_regex_handler(self, events, regex, handler, priority=0):
         """Adds a global handler function for a specific event type and regex.