From 58344bb28c1c0f25ed37624ff487cc8f24821d52 Mon Sep 17 00:00:00 2001
From: antialias <antialias@leap.se>
Date: Fri, 28 Sep 2012 18:16:47 -0400
Subject: Functionality to shutdown network checker when openvpn is stopped.
 But thread not being successfully killed.

---
 src/leap/base/network.py | 40 +++++++++++++++++++++++++++++-----------
 1 file changed, 29 insertions(+), 11 deletions(-)

(limited to 'src/leap/base')

diff --git a/src/leap/base/network.py b/src/leap/base/network.py
index 58f903e1..a1e7c880 100644
--- a/src/leap/base/network.py
+++ b/src/leap/base/network.py
@@ -1,12 +1,18 @@
 # -*- coding: utf-8 -*-
 from __future__ import (print_function)
+import logging
+import threading
 
 from leap.base.checks import LeapNetworkChecker
 from leap.base.constants import ROUTE_CHECK_INTERVAL
-from leap.util.coroutines import (launch_thread, process_events)
+from leap.base.exceptions import TunnelNotDefaultRouteError
+from leap.util.coroutines import (launch_thread_no_daemon, process_events)
 
 from time import sleep
 
+logger = logging.getLogger(name=__name__)
+
+
 class NetworkChecker(object):
     """
     Manages network checking thread that makes sure we have a working network
@@ -15,12 +21,17 @@ class NetworkChecker(object):
     def __init__(self, *args, **kwargs):
         self.status_signals = kwargs.pop('status_signals', None)
         self.watcher_cb = kwargs.pop('status_signals', None)
+        self.excp_logger = lambda exc: logger.error("%s", exc.message)
+        self.checker = LeapNetworkChecker()
 
     def start(self):
-        self._launch_recurrent_network_checks((self.watcher_cb,))
+        self.process_handle = self._launch_recurrent_network_checks((self.excp_logger,))
 
     def stop(self):
-        raise NotImplementedError
+        #TODO: Thread still not being stopped when openvpn is stopped.
+        logger.debug("stopping network checker...")
+        self.process_handle._Thread__stop()
+        logger.debug("network checked stopped.")
 
     def run_checks(self):
         pass
@@ -31,24 +42,31 @@ class NetworkChecker(object):
     #which is exception so we can try by passing a lambda with logger to
     #check it works.
     def _network_checks_thread(self, fail_callbacks):
-        print('fail_callbacks: %s' % fail_callbacks)
-        print(len(fail_callbacks))
+        #TODO: replace this with waiting for a signal from openvpn
+        while True:
+            try:
+                self.checker.check_tunnel_default_interface()
+                break
+            except TunnelNotDefaultRouteError:
+                sleep(1)
+
         observer_dict = dict(((
             observer, process_events(observer)) for observer in fail_callbacks))
-        netchecker = LeapNetworkChecker()
         while True:
             try:
-                netchecker.check_internet_connection()
+                self.checker.check_tunnel_default_interface()
+                self.checker.check_internet_connection()
                 sleep(ROUTE_CHECK_INTERVAL)
             except Exception as exc:
                 for obs in observer_dict:
                     observer_dict[obs].send(exc)
+                sleep(ROUTE_CHECK_INTERVAL)
 
 
-    def _launch_recurrent_network_checks(fail_callbacks):
-        print(type(fail_callbacks))
-        watcher = launch_thread(
-            network_checks_thread,
+    def _launch_recurrent_network_checks(self, fail_callbacks):
+        #we need to wrap the fail callback in a turple
+        watcher = launch_thread_no_daemon(
+            self._network_checks_thread,
             (fail_callbacks,))
         return watcher
 
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