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Diffstat (limited to 'src/leap/bitmask/gui/statuspanel.py')
| -rw-r--r-- | src/leap/bitmask/gui/statuspanel.py | 460 |
1 files changed, 460 insertions, 0 deletions
diff --git a/src/leap/bitmask/gui/statuspanel.py b/src/leap/bitmask/gui/statuspanel.py new file mode 100644 index 00000000..8f5427ad --- /dev/null +++ b/src/leap/bitmask/gui/statuspanel.py @@ -0,0 +1,460 @@ +# -*- coding: utf-8 -*- +# statuspanel.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/>. + +""" +Status Panel widget implementation +""" +import logging + +from datetime import datetime +from functools import partial + +from PySide import QtCore, QtGui + +from leap.bitmask.services.eip.vpnprocess import VPNManager +from leap.bitmask.platform_init import IS_WIN, IS_LINUX +from leap.bitmask.util import first +from leap.common.check import leap_assert_type + +from ui_statuspanel import Ui_StatusPanel + +logger = logging.getLogger(__name__) + + +class RateMovingAverage(object): + """ + Moving window average for calculating + upload and download rates. + """ + SAMPLE_SIZE = 5 + + def __init__(self): + """ + Initializes an empty array of fixed size + """ + self.reset() + + def reset(self): + self._data = [None for i in xrange(self.SAMPLE_SIZE)] + + def append(self, x): + """ + Appends a new data point to the collection. + + :param x: A tuple containing timestamp and traffic points + in the form (timestamp, traffic) + :type x: tuple + """ + self._data.pop(0) + self._data.append(x) + + def get(self): + """ + Gets the collection. + """ + return self._data + + def get_average(self): + """ + Gets the moving average. + """ + data = filter(None, self.get()) + traff = [traffic for (ts, traffic) in data] + times = [ts for (ts, traffic) in data] + + try: + deltatraffic = traff[-1] - first(traff) + deltat = (times[-1] - first(times)).seconds + except IndexError: + deltatraffic = 0 + deltat = 0 + + try: + rate = float(deltatraffic) / float(deltat) / 1024 + except ZeroDivisionError: + rate = 0 + + # In some cases we get negative rates + if rate < 0: + rate = 0 + + return rate + + def get_total(self): + """ + Gets the total accumulated throughput. + """ + try: + return self._data[-1][1] / 1024 + except TypeError: + return 0 + + +class StatusPanelWidget(QtGui.QWidget): + """ + Status widget that displays the current state of the LEAP services + """ + + start_eip = QtCore.Signal() + stop_eip = QtCore.Signal() + + DISPLAY_TRAFFIC_RATES = True + RATE_STR = "%14.2f KB/s" + TOTAL_STR = "%14.2f Kb" + + def __init__(self, parent=None): + QtGui.QWidget.__init__(self, parent) + + self._systray = None + self._action_eip_status = None + + self.ui = Ui_StatusPanel() + self.ui.setupUi(self) + + self.ui.btnEipStartStop.setEnabled(False) + self.ui.btnEipStartStop.clicked.connect( + self.start_eip) + + self.hide_status_box() + + # Set the EIP status icons + self.CONNECTING_ICON = None + self.CONNECTED_ICON = None + self.ERROR_ICON = None + self.CONNECTING_ICON_TRAY = None + self.CONNECTED_ICON_TRAY = None + self.ERROR_ICON_TRAY = None + self._set_eip_icons() + + self._set_traffic_rates() + self._make_status_clickable() + + def _make_status_clickable(self): + """ + Makes upload and download figures clickable. + """ + onclicked = self._on_VPN_status_clicked + self.ui.btnUpload.clicked.connect(onclicked) + self.ui.btnDownload.clicked.connect(onclicked) + + def _on_VPN_status_clicked(self): + """ + SLOT + TRIGGER: self.ui.btnUpload.clicked + self.ui.btnDownload.clicked + + Toggles between rate and total throughput display for vpn + status figures. + """ + self.DISPLAY_TRAFFIC_RATES = not self.DISPLAY_TRAFFIC_RATES + self.update_vpn_status(None) # refresh + + def _set_traffic_rates(self): + """ + Initializes up and download rates. + """ + self._up_rate = RateMovingAverage() + self._down_rate = RateMovingAverage() + + self.ui.btnUpload.setText(self.RATE_STR % (0,)) + self.ui.btnDownload.setText(self.RATE_STR % (0,)) + + def _reset_traffic_rates(self): + """ + Resets up and download rates, and cleans up the labels. + """ + self._up_rate.reset() + self._down_rate.reset() + self.update_vpn_status(None) + + def _update_traffic_rates(self, up, down): + """ + Updates up and download rates. + + :param up: upload total. + :type up: int + :param down: download total. + :type down: int + """ + ts = datetime.now() + self._up_rate.append((ts, up)) + self._down_rate.append((ts, down)) + + def _get_traffic_rates(self): + """ + Gets the traffic rates (in KB/s). + + :returns: a tuple with the (up, down) rates + :rtype: tuple + """ + up = self._up_rate + down = self._down_rate + + return (up.get_average(), down.get_average()) + + def _get_traffic_totals(self): + """ + Gets the traffic total throughput (in Kb). + + :returns: a tuple with the (up, down) totals + :rtype: tuple + """ + up = self._up_rate + down = self._down_rate + + return (up.get_total(), down.get_total()) + + def _set_eip_icons(self): + """ + Sets the EIP status icons for the main window and for the tray + + MAC : dark icons + LINUX : dark icons in window, light icons in tray + WIN : light icons + """ + EIP_ICONS = EIP_ICONS_TRAY = ( + ":/images/conn_connecting-light.png", + ":/images/conn_connected-light.png", + ":/images/conn_error-light.png") + + if IS_LINUX: + EIP_ICONS_TRAY = ( + ":/images/conn_connecting.png", + ":/images/conn_connected.png", + ":/images/conn_error.png") + elif IS_WIN: + EIP_ICONS = EIP_ICONS_TRAY = ( + ":/images/conn_connecting.png", + ":/images/conn_connected.png", + ":/images/conn_error.png") + + self.CONNECTING_ICON = QtGui.QPixmap(EIP_ICONS[0]) + self.CONNECTED_ICON = QtGui.QPixmap(EIP_ICONS[1]) + self.ERROR_ICON = QtGui.QPixmap(EIP_ICONS[2]) + + self.CONNECTING_ICON_TRAY = QtGui.QPixmap(EIP_ICONS_TRAY[0]) + self.CONNECTED_ICON_TRAY = QtGui.QPixmap(EIP_ICONS_TRAY[1]) + self.ERROR_ICON_TRAY = QtGui.QPixmap(EIP_ICONS_TRAY[2]) + + def set_systray(self, systray): + """ + Sets the systray object to use. + + :param systray: Systray object + :type systray: QtGui.QSystemTrayIcon + """ + leap_assert_type(systray, QtGui.QSystemTrayIcon) + self._systray = systray + + def set_action_eip_startstop(self, action_eip_startstop): + """ + Sets the action_eip_startstop to use. + + :param action_eip_startstop: action_eip_status to be used + :type action_eip_startstop: QtGui.QAction + """ + self._action_eip_startstop = action_eip_startstop + + def set_action_eip_status(self, action_eip_status): + """ + Sets the action_eip_status to use. + + :param action_eip_status: action_eip_status to be used + :type action_eip_status: QtGui.QAction + """ + leap_assert_type(action_eip_status, QtGui.QAction) + self._action_eip_status = action_eip_status + + def set_global_status(self, status, error=False): + """ + Sets the global status label. + + :param status: status message + :type status: str or unicode + :param error: if the status is an erroneous one, then set this + to True + :type error: bool + """ + leap_assert_type(error, bool) + if error: + status = "<font color='red'><b>%s</b></font>" % (status,) + self.ui.lblGlobalStatus.setText(status) + self.ui.globalStatusBox.show() + + def hide_status_box(self): + """ + Hide global status box. + """ + self.ui.globalStatusBox.hide() + + def set_eip_status(self, status, error=False): + """ + Sets the status label at the VPN stage to status + + :param status: status message + :type status: str or unicode + :param error: if the status is an erroneous one, then set this + to True + :type error: bool + """ + leap_assert_type(error, bool) + + self._systray.setToolTip(status) + if error: + status = "<font color='red'>%s</font>" % (status,) + self.ui.lblEIPStatus.setText(status) + + def set_startstop_enabled(self, value): + """ + Enable or disable btnEipStartStop and _action_eip_startstop + based on value + + :param value: True for enabled, False otherwise + :type value: bool + """ + leap_assert_type(value, bool) + self.ui.btnEipStartStop.setEnabled(value) + self._action_eip_startstop.setEnabled(value) + + def eip_pre_up(self): + """ + Triggered when the app activates eip. + Hides the status box and disables the start/stop button. + """ + self.hide_status_box() + self.set_startstop_enabled(False) + + def eip_started(self): + """ + Sets the state of the widget to how it should look after EIP + has started + """ + self.ui.btnEipStartStop.setText(self.tr("Turn OFF")) + self.ui.btnEipStartStop.disconnect(self) + self.ui.btnEipStartStop.clicked.connect( + self.stop_eip) + + def eip_stopped(self): + """ + Sets the state of the widget to how it should look after EIP + has stopped + """ + self._reset_traffic_rates() + self.ui.btnEipStartStop.setText(self.tr("Turn ON")) + self.ui.btnEipStartStop.disconnect(self) + self.ui.btnEipStartStop.clicked.connect( + self.start_eip) + + def set_icon(self, icon): + """ + Sets the icon to display for EIP + + :param icon: icon to display + :type icon: QPixmap + """ + self.ui.lblVPNStatusIcon.setPixmap(icon) + + def update_vpn_status(self, data): + """ + SLOT + TRIGGER: VPN.status_changed + + Updates the download/upload labels based on the data provided + by the VPN thread. + + :param data: a dictionary with the tcp/udp write and read totals. + If data is None, we just will refresh the display based + on the previous data. + :type data: dict + """ + if data: + upload = float(data[VPNManager.TCPUDP_WRITE_KEY] or "0") + download = float(data[VPNManager.TCPUDP_READ_KEY] or "0") + self._update_traffic_rates(upload, download) + + if self.DISPLAY_TRAFFIC_RATES: + uprate, downrate = self._get_traffic_rates() + upload_str = self.RATE_STR % (uprate,) + download_str = self.RATE_STR % (downrate,) + + else: # display total throughput + uptotal, downtotal = self._get_traffic_totals() + upload_str = self.TOTAL_STR % (uptotal,) + download_str = self.TOTAL_STR % (downtotal,) + + self.ui.btnUpload.setText(upload_str) + self.ui.btnDownload.setText(download_str) + + def update_vpn_state(self, data): + """ + SLOT + TRIGGER: VPN.state_changed + + Updates the displayed VPN state based on the data provided by + the VPN thread + """ + status = data[VPNManager.STATUS_STEP_KEY] + self.set_eip_status_icon(status) + if status == "CONNECTED": + self.set_eip_status(self.tr("ON")) + # Only now we can properly enable the button. + self.set_startstop_enabled(True) + elif status == "AUTH": + self.set_eip_status(self.tr("Authenticating...")) + elif status == "GET_CONFIG": + self.set_eip_status(self.tr("Retrieving configuration...")) + elif status == "WAIT": + self.set_eip_status(self.tr("Waiting to start...")) + elif status == "ASSIGN_IP": + self.set_eip_status(self.tr("Assigning IP")) + elif status == "ALREADYRUNNING": + # Put the following calls in Qt's event queue, otherwise + # the UI won't update properly + QtCore.QTimer.singleShot(0, self.stop_eip) + QtCore.QTimer.singleShot(0, partial(self.set_global_status, + self.tr("Unable to start VPN, " + "it's already " + "running."))) + else: + self.set_eip_status(status) + + def set_eip_status_icon(self, status): + """ + Given a status step from the VPN thread, set the icon properly + + :param status: status step + :type status: str + """ + selected_pixmap = self.ERROR_ICON + selected_pixmap_tray = self.ERROR_ICON_TRAY + tray_message = self.tr("Encryption is OFF") + if status in ("WAIT", "AUTH", "GET_CONFIG", + "RECONNECTING", "ASSIGN_IP"): + selected_pixmap = self.CONNECTING_ICON + selected_pixmap_tray = self.CONNECTING_ICON_TRAY + tray_message = self.tr("Turning ON") + elif status in ("CONNECTED"): + tray_message = self.tr("Encryption is ON") + selected_pixmap = self.CONNECTED_ICON + selected_pixmap_tray = self.CONNECTED_ICON_TRAY + + self.set_icon(selected_pixmap) + self._systray.setIcon(QtGui.QIcon(selected_pixmap_tray)) + self._action_eip_status.setText(tray_message) + + def set_provider(self, provider): + self.ui.lblProvider.setText(provider) |