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onionshare/onionshare_gui/server_status.py

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# -*- coding: utf-8 -*-
"""
OnionShare | https://onionshare.org/
Copyright (C) 2014-2018 Micah Lee <micah@micahflee.com>
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/>.
"""
import platform
import textwrap
from PyQt5 import QtCore, QtWidgets, QtGui
from onionshare import strings
from .widgets import Alert
class ServerStatus(QtWidgets.QWidget):
"""
The server status chunk of the GUI.
"""
server_started = QtCore.pyqtSignal()
server_started_finished = QtCore.pyqtSignal()
server_stopped = QtCore.pyqtSignal()
server_canceled = QtCore.pyqtSignal()
button_clicked = QtCore.pyqtSignal()
url_copied = QtCore.pyqtSignal()
hidservauth_copied = QtCore.pyqtSignal()
MODE_SHARE = 'share'
MODE_RECEIVE = 'receive'
STATUS_STOPPED = 0
STATUS_WORKING = 1
STATUS_STARTED = 2
def __init__(self, common, qtapp, app, file_selection=None, local_only=False):
super(ServerStatus, self).__init__()
self.common = common
self.status = self.STATUS_STOPPED
self.mode = None # Gets set in self.set_mode
self.qtapp = qtapp
self.app = app
self.web = None
self.local_only = local_only
self.resizeEvent(None)
# Shutdown timeout layout
self.shutdown_timeout_label = QtWidgets.QLabel(strings._('gui_settings_shutdown_timeout'))
self.shutdown_timeout = QtWidgets.QDateTimeEdit()
self.shutdown_timeout.setDisplayFormat("hh:mm A MMM d, yy")
if self.local_only:
# For testing
self.shutdown_timeout.setDateTime(QtCore.QDateTime.currentDateTime().addSecs(15))
self.shutdown_timeout.setMinimumDateTime(QtCore.QDateTime.currentDateTime())
else:
# Set proposed timeout to be 5 minutes into the future
self.shutdown_timeout.setDateTime(QtCore.QDateTime.currentDateTime().addSecs(300))
# Onion services can take a little while to start, so reduce the risk of it expiring too soon by setting the minimum to 60s from now
self.shutdown_timeout.setMinimumDateTime(QtCore.QDateTime.currentDateTime().addSecs(60))
self.shutdown_timeout.setCurrentSection(QtWidgets.QDateTimeEdit.MinuteSection)
shutdown_timeout_layout = QtWidgets.QHBoxLayout()
shutdown_timeout_layout.addWidget(self.shutdown_timeout_label)
shutdown_timeout_layout.addWidget(self.shutdown_timeout)
# Shutdown timeout container, so it can all be hidden and shown as a group
shutdown_timeout_container_layout = QtWidgets.QVBoxLayout()
shutdown_timeout_container_layout.addLayout(shutdown_timeout_layout)
self.shutdown_timeout_container = QtWidgets.QWidget()
self.shutdown_timeout_container.setLayout(shutdown_timeout_container_layout)
self.shutdown_timeout_container.hide()
# Server layout
self.server_button = QtWidgets.QPushButton()
self.server_button.clicked.connect(self.server_button_clicked)
# URL layout
url_font = QtGui.QFontDatabase.systemFont(QtGui.QFontDatabase.FixedFont)
self.url_description = QtWidgets.QLabel()
self.url_description.setWordWrap(True)
self.url_description.setMinimumHeight(50)
self.url = QtWidgets.QLabel()
self.url.setFont(url_font)
self.url.setWordWrap(True)
self.url.setMinimumSize(self.url.sizeHint())
self.url.setStyleSheet(self.common.css['server_status_url'])
self.copy_url_button = QtWidgets.QPushButton(strings._('gui_copy_url'))
self.copy_url_button.setFlat(True)
self.copy_url_button.setStyleSheet(self.common.css['server_status_url_buttons'])
self.copy_url_button.setMinimumHeight(65)
self.copy_url_button.clicked.connect(self.copy_url)
self.copy_hidservauth_button = QtWidgets.QPushButton(strings._('gui_copy_hidservauth'))
self.copy_hidservauth_button.setFlat(True)
self.copy_hidservauth_button.setStyleSheet(self.common.css['server_status_url_buttons'])
self.copy_hidservauth_button.clicked.connect(self.copy_hidservauth)
url_buttons_layout = QtWidgets.QHBoxLayout()
url_buttons_layout.addWidget(self.copy_url_button)
url_buttons_layout.addWidget(self.copy_hidservauth_button)
url_buttons_layout.addStretch()
url_layout = QtWidgets.QVBoxLayout()
url_layout.addWidget(self.url_description)
url_layout.addWidget(self.url)
url_layout.addLayout(url_buttons_layout)
# Add the widgets
layout = QtWidgets.QVBoxLayout()
layout.addWidget(self.server_button)
layout.addLayout(url_layout)
layout.addWidget(self.shutdown_timeout_container)
self.setLayout(layout)
def set_mode(self, share_mode, file_selection=None):
"""
The server status is in share mode.
"""
self.mode = share_mode
if self.mode == ServerStatus.MODE_SHARE:
self.file_selection = file_selection
self.update()
def resizeEvent(self, event):
"""
When the widget is resized, try and adjust the display of a v3 onion URL.
"""
try:
# Wrap the URL label
url_length=len(self.get_url())
if url_length > 60:
width = self.frameGeometry().width()
if width < 530:
wrapped_onion_url = textwrap.fill(self.get_url(), 46)
self.url.setText(wrapped_onion_url)
else:
self.url.setText(self.get_url())
except:
pass
def shutdown_timeout_reset(self):
"""
Reset the timeout in the UI after stopping a share
"""
self.shutdown_timeout.setDateTime(QtCore.QDateTime.currentDateTime().addSecs(300))
if not self.local_only:
self.shutdown_timeout.setMinimumDateTime(QtCore.QDateTime.currentDateTime().addSecs(60))
def update(self):
"""
Update the GUI elements based on the current state.
"""
# Set the URL fields
if self.status == self.STATUS_STARTED:
self.url_description.show()
info_image = self.common.get_resource_path('images/info.png')
if self.mode == ServerStatus.MODE_SHARE:
self.url_description.setText(strings._('gui_share_url_description').format(info_image))
else:
self.url_description.setText(strings._('gui_receive_url_description').format(info_image))
# Show a Tool Tip explaining the lifecycle of this URL
if self.common.settings.get('save_private_key'):
if self.mode == ServerStatus.MODE_SHARE and self.common.settings.get('close_after_first_download'):
self.url_description.setToolTip(strings._('gui_url_label_onetime_and_persistent'))
else:
self.url_description.setToolTip(strings._('gui_url_label_persistent'))
else:
if self.mode == ServerStatus.MODE_SHARE and self.common.settings.get('close_after_first_download'):
self.url_description.setToolTip(strings._('gui_url_label_onetime'))
else:
self.url_description.setToolTip(strings._('gui_url_label_stay_open'))
self.url.setText(self.get_url())
self.url.show()
self.copy_url_button.show()
if self.common.settings.get('save_private_key'):
if not self.common.settings.get('slug'):
self.common.settings.set('slug', self.web.slug)
self.common.settings.save()
if self.common.settings.get('shutdown_timeout'):
self.shutdown_timeout_container.hide()
if self.app.stealth:
self.copy_hidservauth_button.show()
else:
self.copy_hidservauth_button.hide()
else:
self.url_description.hide()
self.url.hide()
self.copy_url_button.hide()
self.copy_hidservauth_button.hide()
# Button
if self.mode == ServerStatus.MODE_SHARE and self.file_selection.get_num_files() == 0:
self.server_button.hide()
else:
self.server_button.show()
if self.status == self.STATUS_STOPPED:
self.server_button.setStyleSheet(self.common.css['server_status_button_stopped'])
self.server_button.setEnabled(True)
if self.mode == ServerStatus.MODE_SHARE:
self.server_button.setText(strings._('gui_share_start_server'))
else:
self.server_button.setText(strings._('gui_receive_start_server'))
self.server_button.setToolTip('')
if self.common.settings.get('shutdown_timeout'):
self.shutdown_timeout_container.show()
elif self.status == self.STATUS_STARTED:
self.server_button.setStyleSheet(self.common.css['server_status_button_started'])
self.server_button.setEnabled(True)
if self.mode == ServerStatus.MODE_SHARE:
self.server_button.setText(strings._('gui_share_stop_server'))
else:
self.server_button.setText(strings._('gui_receive_stop_server'))
if self.common.settings.get('shutdown_timeout'):
self.shutdown_timeout_container.hide()
if self.mode == ServerStatus.MODE_SHARE:
self.server_button.setToolTip(strings._('gui_share_stop_server_shutdown_timeout_tooltip').format(self.timeout))
else:
self.server_button.setToolTip(strings._('gui_receive_stop_server_shutdown_timeout_tooltip').format(self.timeout))
elif self.status == self.STATUS_WORKING:
self.server_button.setStyleSheet(self.common.css['server_status_button_working'])
self.server_button.setEnabled(True)
self.server_button.setText(strings._('gui_please_wait'))
if self.common.settings.get('shutdown_timeout'):
self.shutdown_timeout_container.hide()
else:
self.server_button.setStyleSheet(self.common.css['server_status_button_working'])
self.server_button.setEnabled(False)
self.server_button.setText(strings._('gui_please_wait'))
if self.common.settings.get('shutdown_timeout'):
self.shutdown_timeout_container.hide()
def server_button_clicked(self):
"""
Toggle starting or stopping the server.
"""
if self.status == self.STATUS_STOPPED:
if self.common.settings.get('shutdown_timeout'):
if self.local_only:
self.timeout = self.shutdown_timeout.dateTime().toPyDateTime()
else:
# Get the timeout chosen, stripped of its seconds. This prevents confusion if the share stops at (say) 37 seconds past the minute chosen
self.timeout = self.shutdown_timeout.dateTime().toPyDateTime().replace(second=0, microsecond=0)
# If the timeout has actually passed already before the user hit Start, refuse to start the server.
if QtCore.QDateTime.currentDateTime().toPyDateTime() > self.timeout:
Alert(self.common, strings._('gui_server_timeout_expired'), QtWidgets.QMessageBox.Warning)
else:
self.start_server()
else:
self.start_server()
elif self.status == self.STATUS_STARTED:
self.stop_server()
elif self.status == self.STATUS_WORKING:
self.cancel_server()
self.button_clicked.emit()
def start_server(self):
"""
Start the server.
"""
self.status = self.STATUS_WORKING
self.update()
self.server_started.emit()
def start_server_finished(self):
"""
The server has finished starting.
"""
self.status = self.STATUS_STARTED
self.copy_url()
self.update()
self.server_started_finished.emit()
def stop_server(self):
"""
Stop the server.
"""
self.status = self.STATUS_WORKING
self.shutdown_timeout_reset()
self.update()
self.server_stopped.emit()
def cancel_server(self):
"""
Cancel the server.
"""
self.common.log('ServerStatus', 'cancel_server', 'Canceling the server mid-startup')
self.status = self.STATUS_WORKING
self.shutdown_timeout_reset()
self.update()
self.server_canceled.emit()
def stop_server_finished(self):
"""
The server has finished stopping.
"""
self.status = self.STATUS_STOPPED
self.update()
def copy_url(self):
"""
Copy the onionshare URL to the clipboard.
"""
clipboard = self.qtapp.clipboard()
clipboard.setText(self.get_url())
self.url_copied.emit()
def copy_hidservauth(self):
"""
Copy the HidServAuth line to the clipboard.
"""
clipboard = self.qtapp.clipboard()
clipboard.setText(self.app.auth_string)
self.hidservauth_copied.emit()
def get_url(self):
"""
Returns the OnionShare URL.
"""
if self.common.settings.get('public_mode'):
url = 'http://{0:s}'.format(self.app.onion_host)
else:
url = 'http://{0:s}/{1:s}'.format(self.app.onion_host, self.web.slug)
return url
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