Merge pull request #1581 from RasaHQ/strip_whitespace

strip surrounding newlines from messages

CHANGELOG.rst

@@ -29,7 +29,7 @@ Added
   (as long as the event itself is enabled in the application hosting the bot)
 - Added sanitization mechanism for SlackInput that (in its current shape and form)
   strips bot's self mentions from messages posted using the said @mentions.
-  
+
 Removed
 -------
 - support for deprecated intents/entities format
@@ -48,6 +48,7 @@ Fixed
   dispatched messages using ``dispatcher.utter_custom_message``
 - re-added missing ``python-engineio`` dependency
 - fixed not working examples in ``examples/``
+- strip newlins from messages so you don't have something like "\n/restart\n"
 
 
 [0.12.3] - 2018-12-03

rasa_core/channels/channel.py

@@ -29,8 +29,10 @@ def __init__(self,
                  parse_data: Dict[Text, Any] = None,
                  input_channel: Text = None
                  ) -> None:
-
-        self.text = text
+        if text:
+            self.text = text.strip()
+        else:
+            self.text = text
 
         if output_channel is not None:
             self.output_channel = output_channel

tests/test_channels.py

@@ -731,3 +731,11 @@ def test_message(sender, message):
     channel = OutputChannel()
     channel.send_text_message = test_message
     channel.send_custom_message("user", [{'title': 'a', 'subtitle': 'b'}])
+
+
+def test_newsline_strip():
+    from rasa_core.channels import UserMessage
+
+    message = UserMessage("\n/restart\n")
+
+    assert message.text == "/restart"