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from __future__ import print_function
import logging
logger = logging.getLogger(name=__name__)
from PyQt4 import QtCore
from leap.baseapp.dialogs import ErrorDialog
from leap.base.network import NetworkCheckerThread
from leap.util.misc import null_check
class NetworkCheckerAppMixin(object):
"""
initialize an instance of the Network Checker,
which gathers error and passes them on.
"""
ERR_NETERR = False
def __init__(self, *args, **kwargs):
provider = kwargs.pop('provider', None)
self.network_checker = None
if provider:
self.init_network_checker(provider)
def init_network_checker(self, provider):
null_check(provider, "provider_domain")
if not self.network_checker:
self.network_checker = NetworkCheckerThread(
error_cb=self.networkError.emit,
debug=self.debugmode,
provider=provider)
self.network_checker.start()
@QtCore.pyqtSlot(object)
def runNetworkChecks(self):
logger.debug('running checks (from NetworkChecker Mixin slot)')
self.network_checker.run_checks()
@QtCore.pyqtSlot(object)
def onNetworkError(self, exc):
"""
slot that receives a network exceptions
and raises a user error message
"""
# FIXME this should not HANDLE anything after
# the network check thread has been stopped.
logger.debug('handling network exception')
if not self.ERR_NETERR:
self.ERR_NETERR = True
logger.error(exc.message)
dialog = ErrorDialog(parent=self)
if exc.critical:
dialog.criticalMessage(exc.usermessage, "network error")
else:
dialog.warningMessage(exc.usermessage, "network error")
self.start_or_stopVPN()
self.network_checker.stop()
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