config flag for having !dice/!random prefix the nick

with the discord-irc bridge in play, the bot was sending all !roll
results to the bridge user, which wasn't all that useful

dice/ircplugin.py

@@ -1,7 +1,9 @@
 """Roll dice when asked, intended for RPGs."""
 import logging
-import re
 import random
+import re
+
+from django.conf import settings
 
 from irc.client import NickMask
 
@@ -38,23 +40,23 @@ class Dice(Plugin):
 
     def handle_random(self, connection, event, match):
         """Handle the !random command which picks an item from a list."""
-
         nick = NickMask(event.source).nick
         choices = match.group(1)
 
         choices_list = choices.split(' ')
-        choice = random.choice(choices_list)
+        choice = random.SystemRandom().choice(choices_list)
 
         logger.debug(event.recursing)
         if event.recursing:
             reply = "{0:s}".format(choice)
-        else:
+        elif settings.DICE_PREFIX_ROLLER:
             reply = "{0:s}: {1:s}".format(nick, choice)
+        else:
+            reply = "{0:s}".format(choice)
         return self.bot.reply(event, reply)
 
     def handle_roll(self, connection, event, match):
         """Handle the !roll command which covers most common dice stuff."""
-
         nick = NickMask(event.source).nick
         dicestr = match.group(1)
 
@@ -68,8 +70,11 @@ class Dice(Plugin):
 
         if event.recursing:
             reply = "{0:s}".format(reply_str)
-        else:
+        elif settings.DICE_PREFIX_ROLLER:
             reply = "{0:s}: {1:s}".format(nick, reply_str)
+        else:
+            reply = "{0:s}".format(reply_str)
         return self.bot.reply(event, re.sub(r'(\d+)(.*?\s+)(\(.*?\))', r'\1\214\3', reply))
 
+
 plugin = Dice