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# -*- coding: utf-8 -*-
# eip_preferenceswindow.py
# Copyright (C) 2013 LEAP
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
EIP Preferences window
"""
import logging
from functools import partial
from PySide import QtCore, QtGui
from leap.bitmask.config.leapsettings import LeapSettings
from leap.bitmask.gui.ui_eippreferences import Ui_EIPPreferences
logger = logging.getLogger(__name__)
class EIPPreferencesWindow(QtGui.QDialog):
"""
Window that displays the EIP preferences.
"""
def __init__(self, parent, domain, backend, leap_signaler):
"""
:param parent: parent object of the EIPPreferencesWindow.
:type parent: QWidget
:param domain: the selected by default domain.
:type domain: unicode
:param backend: Backend being used
:type backend: Backend
"""
QtGui.QDialog.__init__(self, parent)
self.AUTOMATIC_GATEWAY_LABEL = self.tr("Automatic")
self._settings = LeapSettings()
self._leap_signaler = leap_signaler
self._backend = backend
# Load UI
self.ui = Ui_EIPPreferences()
self.ui.setupUi(self)
self.ui.lblProvidersGatewayStatus.setVisible(False)
# Connections
self.ui.cbProvidersGateway.currentIndexChanged[int].connect(
self._populate_gateways)
self.ui.cbGateways.currentIndexChanged[unicode].connect(
lambda x: self.ui.lblProvidersGatewayStatus.setVisible(False))
self._selected_domain = domain
self._configured_providers = []
self._backend_connect()
self._add_configured_providers()
def _set_providers_gateway_status(self, status, success=False,
error=False):
"""
Sets the status label for the gateway change.
:param status: status message to display, can be HTML
:type status: str
:param success: is set to True if we should display the
message as green
:type success: bool
:param error: is set to True if we should display the
message as red
:type error: bool
"""
if success:
status = "<font color='green'><b>%s</b></font>" % (status,)
elif error:
status = "<font color='red'><b>%s</b></font>" % (status,)
self.ui.lblProvidersGatewayStatus.setVisible(True)
self.ui.lblProvidersGatewayStatus.setText(status)
def _add_configured_providers(self):
"""
Add the client's configured providers to the providers combo boxes.
"""
providers = self._settings.get_configured_providers()
if not providers:
return
self._backend.eip_get_initialized_providers(domains=providers)
@QtCore.Slot(list)
def _load_providers_in_combo(self, providers):
"""
TRIGGERS:
Signaler.eip_get_initialized_providers
Add the client's configured providers to the providers combo boxes.
:param providers: the list of providers to add and whether each one is
initialized or not.
:type providers: list of tuples (str, bool)
"""
self.ui.cbProvidersGateway.clear()
if not providers:
self.ui.gbGatewaySelector.setEnabled(False)
return
for provider, is_initialized in providers:
label = provider
if not is_initialized:
label += self.tr(" (uninitialized)")
self.ui.cbProvidersGateway.addItem(label, userData=provider)
# Select provider by name
domain = self._selected_domain
if domain is not None:
provider_index = self.ui.cbProvidersGateway.findText(
domain, QtCore.Qt.MatchStartsWith)
self.ui.cbProvidersGateway.setCurrentIndex(provider_index)
@QtCore.Slot(str)
def _save_selected_gateway(self, provider):
"""
TRIGGERS:
self.ui.pbSaveGateway.clicked
Saves the new gateway setting to the configuration file.
:param provider: the provider config that we need to save.
:type provider: str
"""
gateway = self.ui.cbGateways.currentText()
if gateway == self.AUTOMATIC_GATEWAY_LABEL:
gateway = self._settings.GATEWAY_AUTOMATIC
else:
idx = self.ui.cbGateways.currentIndex()
gateway = self.ui.cbGateways.itemData(idx)
self._settings.set_selected_gateway(provider, gateway)
self._backend.settings_set_selected_gateway(provider=provider,
gateway=gateway)
msg = self.tr(
"Gateway settings for provider '{0}' saved.").format(provider)
self._set_providers_gateway_status(msg, success=True)
@QtCore.Slot(int)
def _populate_gateways(self, domain_idx):
"""
TRIGGERS:
self.ui.cbProvidersGateway.currentIndexChanged[unicode]
Loads the gateways that the provider provides into the UI for
the user to select.
:param domain: the domain index of the provider to load gateways from.
:type domain: int
"""
# We hide the maybe-visible status label after a change
self.ui.lblProvidersGatewayStatus.setVisible(False)
if domain_idx == -1:
return
domain = self.ui.cbProvidersGateway.itemData(domain_idx)
self._selected_domain = domain
self._backend.eip_get_gateways_list(domain=domain)
@QtCore.Slot(list)
def _update_gateways_list(self, gateways):
"""
TRIGGERS:
Signaler.eip_get_gateways_list
:param gateways: a list of gateways
:type gateways: list of unicode
Add the available gateways and select the one stored in configuration
file.
"""
self.ui.pbSaveGateway.setEnabled(True)
self.ui.cbGateways.setEnabled(True)
self.ui.cbGateways.clear()
self.ui.cbGateways.addItem(self.AUTOMATIC_GATEWAY_LABEL)
try:
# disconnect previously connected save method
self.ui.pbSaveGateway.clicked.disconnect()
except RuntimeError:
pass # Signal was not connected
# set the proper connection for the 'save' button
domain = self._selected_domain
save_gateway = partial(self._save_selected_gateway, domain)
self.ui.pbSaveGateway.clicked.connect(save_gateway)
selected_gateway = self._settings.get_selected_gateway(
self._selected_domain)
index = 0
for idx, (gw_name, gw_ip) in enumerate(gateways):
gateway = "{0} ({1})".format(gw_name, gw_ip)
self.ui.cbGateways.addItem(gateway, gw_ip)
if gw_ip == selected_gateway:
index = idx + 1
self.ui.cbGateways.setCurrentIndex(index)
@QtCore.Slot()
def _gateways_list_error(self):
"""
TRIGGERS:
Signaler.eip_get_gateways_list_error
An error has occurred retrieving the gateway list so we inform the
user.
"""
self._set_providers_gateway_status(
self.tr("There was a problem with configuration files."),
error=True)
self.ui.pbSaveGateway.setEnabled(False)
self.ui.cbGateways.setEnabled(False)
@QtCore.Slot()
def _gateways_list_uninitialized(self):
"""
TRIGGERS:
Signaler.eip_uninitialized_provider
The requested provider in not initialized yet, so we give the user an
error msg.
"""
self._set_providers_gateway_status(
self.tr("This is an uninitialized provider, please log in first."),
error=True)
self.ui.pbSaveGateway.setEnabled(False)
self.ui.cbGateways.setEnabled(False)
def _backend_connect(self):
sig = self._leap_signaler
sig.eip_get_gateways_list.connect(self._update_gateways_list)
sig.eip_get_gateways_list_error.connect(self._gateways_list_error)
sig.eip_uninitialized_provider.connect(
self._gateways_list_uninitialized)
sig.eip_get_initialized_providers.connect(
self._load_providers_in_combo)
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