Disable signal disconnection and untrack.0.8.0rc1

This temporary hack prevents the app to have segfaults when the first
run wizard finishes.
For more information look at https://leap.se/code/issues/6597

3 files changed, 31 insertions, 7 deletions

diff --git a/src/leap/bitmask/gui/mainwindow.py b/src/leap/bitmask/gui/mainwindow.py
index 7d55a5d5..b0826303 100644
--- a/src/leap/bitmask/gui/mainwindow.py
+++ b/src/leap/bitmask/gui/mainwindow.py
@@ -288,7 +288,11 @@ class MainWindow(QtGui.QMainWindow, SignalTracker):
 
         if self._first_run():
             self._wizard_firstrun = True
-            self.disconnect_and_untrack()
+
+            # HACK FIX: disconnection of signals triggers a reconnection later
+            # chich segfaults on wizard quit
+            # self.disconnect_and_untrack()
+
             self._wizard = Wizard(backend=self._backend,
                                   leap_signaler=self._leap_signaler)
             # Give this window time to finish init and then show the wizard
@@ -341,6 +345,8 @@ class MainWindow(QtGui.QMainWindow, SignalTracker):
         conntrack = self.connect_and_track
         # XXX does this goes in here? this will be triggered when the login or
         # wizard requests provider data
+
+        # XXX - here segfaults if we did a disconnect_and_untrack
         conntrack(sig.prov_check_api_certificate, self._get_provider_details)
         conntrack(sig.prov_get_details, self._provider_get_details)
 
@@ -417,7 +423,11 @@ class MainWindow(QtGui.QMainWindow, SignalTracker):
             # This happens if the user finishes the provider
             # setup but does not register
             self._wizard = None
-            self._backend_connect(only_tracked=True)
+
+            # HACK FIX: disconnection of signals triggers a reconnection later
+            # chich segfaults on wizard quit
+            # self._backend_connect(only_tracked=True)
+
             if self._wizard_firstrun:
                 self._finish_init()
 
@@ -433,7 +443,9 @@ class MainWindow(QtGui.QMainWindow, SignalTracker):
         there.
         """
         if self._wizard is None:
-            self.disconnect_and_untrack()
+            # HACK FIX: disconnection of signals triggers a reconnection later
+            # chich segfaults on wizard quit
+            # self.disconnect_and_untrack()
             self._wizard = Wizard(backend=self._backend,
                                   leap_signaler=self._leap_signaler)
             self._wizard.accepted.connect(self._finish_init)
@@ -764,7 +776,9 @@ class MainWindow(QtGui.QMainWindow, SignalTracker):
                 self.eip_needs_login.emit()
 
             self._wizard = None
-            self._backend_connect(only_tracked=True)
+            # HACK FIX: disconnection of signals triggers a reconnection later
+            # chich segfaults on wizard quit
+            # self._backend_connect(only_tracked=True)
         else:
             domain = self._settings.get_provider()
             if domain is not None:
diff --git a/src/leap/bitmask/gui/signaltracker.py b/src/leap/bitmask/gui/signaltracker.py
index 4884334d..c83359c4 100644
--- a/src/leap/bitmask/gui/signaltracker.py
+++ b/src/leap/bitmask/gui/signaltracker.py
@@ -14,9 +14,12 @@
 #
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
+import logging
 
 from PySide import QtCore
 
+logger = logging.getLogger(__name__)
+
 
 class SignalTracker(QtCore.QObject):
     """
@@ -39,6 +42,10 @@ class SignalTracker(QtCore.QObject):
         :param method: the method to call when the signal is triggered.
         :type method: callable, Slot or Signal
         """
+        if (signal, method) in self._connected_signals:
+            logger.warning("Signal already connected.")
+            return
+
         self._connected_signals.append((signal, method))
         signal.connect(method)
 
@@ -49,7 +56,9 @@ class SignalTracker(QtCore.QObject):
         for signal, method in self._connected_signals:
             try:
                 signal.disconnect(method)
-            except RuntimeError:
-                pass  # Signal was not connected
+            except (TypeError, RuntimeError) as e:
+                # most likely the signal was not connected
+                logger.warning("Disconnect error: {0!r}".format(e))
+                logger.warning("Signal: {0!r} -> {1!r}".format(signal, method))
 
         self._connected_signals = []
diff --git a/src/leap/bitmask/gui/wizard.py b/src/leap/bitmask/gui/wizard.py
index f1eab211..35043a68 100644
--- a/src/leap/bitmask/gui/wizard.py
+++ b/src/leap/bitmask/gui/wizard.py
@@ -152,7 +152,8 @@ class Wizard(QtGui.QWizard, SignalTracker):
         self._provider_setup_ok = False
         self.ui.lnProvider.setText('')
         self.ui.grpCheckProvider.setVisible(False)
-        self.disconnect_and_untrack()
+        # HACK FIX: disconnection of signals triggers a segfault on quit
+        # self.disconnect_and_untrack()
 
     def _load_configured_providers(self):
         """