Add cancel button for EIP connection.

Closes: #4035

This falls in the "quick" workaround category.

A proper state machine that extends the four basic connection states
is hence needed. We have to accomodate design to have a
connection-oriented state machine in the backend (I would favor a
twisted protocol for this), and a more lightweight one that conducts
the gui-level changes (ie, change the actions / buttons / labels
accordingly).

Since this "cancel" functionality has been long postponed, I chose
to do one more ugly hack here, that is, show and hide dance with a
button that just calls the bitmask-root to kill the vpn process. It
should work well enough until we get to the reorganization needed for a
clean process control for eip.

1 files changed, 6 insertions, 1 deletions

diff --git a/src/leap/bitmask/backend/components.py b/src/leap/bitmask/backend/components.py
index b372db89..f721086b 100644
--- a/src/leap/bitmask/backend/components.py
+++ b/src/leap/bitmask/backend/components.py
@@ -69,7 +69,6 @@ class ILEAPComponent(zope.interface.Interface):
     """
     Interface that every component for the backend should comply to
     """
-
     key = zope.interface.Attribute("Key id for this component")
 
 
@@ -552,6 +551,12 @@ class EIP(object):
         """
         self._vpn.tear_down_firewall()
 
+    def bitmask_root_vpn_down(self):
+        """
+        Bring openvpn down, using bitmask-root helper.
+        """
+        self._vpn.bitmask_root_vpn_down()
+
     def get_gateways_list(self, domain):
         """
         Signal a list of gateways for the given provider.