contrib_bots: Clean up and document virtual_fs bot.

contrib_bots/bots/virtual_fs/virtual_fs.py

@@ -9,7 +9,7 @@ class VirtualFsHandler(object):
 
     def handle_message(self, message, client, state_handler):
         command = message['content']
-        stream = message['display_recipient']
+        if command == "": return
         topic = message['subject']
         sender = message['sender_email']
 
@@ -17,23 +17,22 @@ class VirtualFsHandler(object):
         if state is None:
             state = {}
 
-        if stream not in state:
-            state[stream] = fs_new()
-        fs = state[stream]
+        recipient = message['display_recipient']
+        if isinstance(recipient, list): # If not a stream, then hash on list of emails
+            recipient = " ".join([x['email'] for x in recipient])
+
+        if recipient not in state:
+            state[recipient] = fs_new()
+        fs = state[recipient]
         if sender not in fs['user_paths']:
             fs['user_paths'][sender] = '/'
         fs, msg = fs_command(fs, sender, command)
         prependix = '{}:\n'.format(sender)
         msg = prependix + msg
-        state[stream] = fs
+        state[recipient] = fs
         state_handler.set_state(state)
 
-        client.send_message(dict(
-            type='stream',
-            to=stream,
-            subject=topic,
-            content=msg,
-        ))
+        client.send_reply(message, msg)
 
 
 def get_help():