avoid redoing webhooks

lib/discordhandler.ex

@@ -7,10 +7,28 @@ defmodule Discordirc.DiscordHandler do
     Consumer.start_link(__MODULE__)
   end
 
+
+  def is_me_or_my_webhook(msg) do
+    {:ok, me} = api.get_current_user()
+
+    is_me = msg.author.username == me.username and msg.author.discriminator == me.discriminator
+    is_webhook = msg.webhook_id != nil
+
+    is_my_webhook =
+      if is_webhook do
+        {:ok, wh} = api.get_webhook(msg.webhook_id)
+        wh.user.id == nostrum.snowflake.dump(me.id)
+      else
+        false
+      end
+
+    is_me or is_my_webhook
+  end
+
   def handle_event({:MESSAGE_CREATE, msg, _ws_state}) do
     {:ok, me} = Api.get_current_user()
 
-    unless msg.author.username == me.username and msg.author.discriminator == me.discriminator do
+    unless is_me_or_my_webhook(msg) do
       case ChannelMap.irc(msg.channel_id) do
         {:ok, net, _} ->
           pid = String.to_atom(net)