class AutoConnectTab(QtWidgets.QWidget):
"""
Initial Tab that appears in the very beginning to ask user if
should auto connect.
"""
close_this_tab = QtCore.Signal()
tor_is_connected = QtCore.Signal()
tor_is_disconnected = QtCore.Signal()
def __init__(self, common, tab_id, status_bar, window, parent=None):
super(AutoConnectTab, self).__init__()
self.common = common
self.common.log("AutoConnectTab", "__init__")
self.status_bar = status_bar
self.tab_id = tab_id
self.window = window
self.parent = parent
# Was auto connected?
self.curr_settings = Settings(common)
self.curr_settings.load()
self.auto_connect_enabled = self.curr_settings.get("auto_connect")
# Rocket ship animation images
self.anim_stars = AnimStars(self, self.window)
self.anim_ship = AnimShip(self, self.window)
self.anim_smoke = AnimSmoke(self, self.window)
# Onionshare logo
self.image_label = QtWidgets.QLabel()
self.image_label.setPixmap(
QtGui.QPixmap.fromImage(
QtGui.QImage(
GuiCommon.get_resource_path(
os.path.join(
"images",
f"{common.gui.color_mode}_logo_text_bg.png")))))
self.image_label.setFixedSize(322, 65)
image_layout = QtWidgets.QVBoxLayout()
image_layout.addWidget(self.image_label)
self.image = QtWidgets.QWidget()
self.image.setLayout(image_layout)
# First launch widget
self.first_launch_widget = AutoConnectFirstLaunchWidget(
self.common, self.curr_settings)
self.first_launch_widget.toggle_auto_connect.connect(
self.toggle_auto_connect)
self.first_launch_widget.connect_clicked.connect(
self.first_launch_widget_connect_clicked)
self.first_launch_widget.open_tor_settings.connect(
self.open_tor_settings)
self.first_launch_widget.show()
# Use bridge widget
self.use_bridge_widget = AutoConnectUseBridgeWidget(self.common)
self.use_bridge_widget.connect_clicked.connect(
self.use_bridge_connect_clicked)
self.use_bridge_widget.try_again_clicked.connect(
self.first_launch_widget_connect_clicked)
self.use_bridge_widget.open_tor_settings.connect(
self.open_tor_settings)
self.use_bridge_widget.hide()
# Tor connection widget
self.tor_con = TorConnectionWidget(self.common, self.status_bar)
self.tor_con.success.connect(self.tor_con_success)
self.tor_con.fail.connect(self.tor_con_fail)
self.tor_con.update_progress.connect(self.anim_stars.update)
self.tor_con.update_progress.connect(self.anim_ship.update)
self.tor_con.update_progress.connect(self.anim_smoke.update)
self.tor_con.hide()
# Layout
content_layout = QtWidgets.QVBoxLayout()
content_layout.addStretch()
content_layout.addWidget(self.image)
content_layout.addWidget(self.first_launch_widget)
content_layout.addWidget(self.use_bridge_widget)
content_layout.addWidget(self.tor_con)
content_layout.addStretch()
content_layout.setAlignment(QtCore.Qt.AlignCenter)
content_widget = QtWidgets.QWidget()
content_widget.setLayout(content_layout)
self.layout = QtWidgets.QHBoxLayout()
self.layout.addWidget(content_widget)
self.layout.addStretch()
self.setLayout(self.layout)
def check_autoconnect(self):
"""
After rendering, check if autoconnect was clicked, then start connecting
"""
self.common.log("AutoConnectTab", "autoconnect_checking")
if self.auto_connect_enabled:
self.first_launch_widget.enable_autoconnect_checkbox.setChecked(
True)
self.first_launch_widget_connect_clicked()
def toggle_auto_connect(self):
"""
Auto connect checkbox clicked
"""
self.common.log("AutoConnectTab", "autoconnect_checkbox_clicked")
self.curr_settings.set(
"auto_connect",
self.first_launch_widget.enable_autoconnect_checkbox.isChecked(),
)
self.curr_settings.save()
def open_tor_settings(self):
self.parent.open_settings_tab(from_autoconnect=True, active_tab="tor")
def first_launch_widget_connect_clicked(self):
"""
Connect button in first launch widget clicked. Try to connect to tor.
"""
self.common.log("AutoConnectTab",
"first_launch_widget_connect_clicked")
self.first_launch_widget.hide_buttons()
self.tor_con.show()
self.tor_con.start(self.curr_settings)
def _got_bridges(self):
self.use_bridge_widget.progress.hide()
self.use_bridge_widget.progress_label.hide()
# Try and connect again
self.common.log(
"AutoConnectTab",
"_got_bridges",
"Got bridges. Trying to reconnect to Tor",
)
self.tor_con.show()
self.tor_con.start(self.curr_settings)
def _got_no_bridges(self):
# If we got no bridges, even after trying the default bridges
# provided by the Censorship API, try connecting again using
# our built-in obfs4 bridges
self.curr_settings.set("bridges_type", "built-in")
self.curr_settings.set("bridges_builtin_pt", "obfs4")
self.curr_settings.set("bridges_enabled", True)
self.curr_settings.save()
self._got_bridges()
def _censorship_progress_update(self, progress, summary):
self.use_bridge_widget.progress.setValue(int(progress))
self.use_bridge_widget.progress_label.setText(
f"<strong>{strings._('gui_autoconnect_circumventing_censorship')}</strong><br>{summary}"
)
def network_connection_error(self):
"""
Display an error if there simply seems no network connection.
"""
self.use_bridge_widget.connection_status_label.setText(
strings._("gui_autoconnect_failed_to_connect_to_tor"))
self.use_bridge_widget.progress.hide()
self.use_bridge_widget.progress_label.hide()
self.use_bridge_widget.error_label.show()
self.use_bridge_widget.country_combobox.setEnabled(True)
self.use_bridge_widget.show_buttons()
self.use_bridge_widget.show()
def use_bridge_connect_clicked(self):
"""
Connect button in use bridge widget clicked.
"""
self.common.log(
"AutoConnectTab",
"use_bridge_connect_clicked",
"Trying to automatically obtain bridges",
)
self.use_bridge_widget.hide_buttons()
self.use_bridge_widget.progress.show()
self.use_bridge_widget.progress_label.show()
if self.use_bridge_widget.detect_automatic_radio.isChecked():
country = False
else:
country = self.use_bridge_widget.country_combobox.currentData(
).lower()
self._censorship_progress_update(
50,
strings._(
"gui_autoconnect_circumventing_censorship_starting_meek"))
try:
self.common.gui.meek.start()
self.censorship_circumvention = CensorshipCircumvention(
self.common, self.common.gui.meek)
self._censorship_progress_update(
75,
strings.
_("gui_autoconnect_circumventing_censorship_requesting_bridges"
),
)
bridge_settings = self.censorship_circumvention.request_settings(
country=country)
if not bridge_settings:
# Fall back to trying the default bridges from the API
self.common.log(
"AutoConnectTab",
"use_bridge_connect_clicked",
"Falling back to trying default bridges provided by the Censorship Circumvention API",
)
bridge_settings = (
self.censorship_circumvention.request_default_bridges())
self.common.gui.meek.cleanup()
if bridge_settings and self.censorship_circumvention.save_settings(
self.curr_settings, bridge_settings):
self._censorship_progress_update(
100,
strings.
_("gui_autoconnect_circumventing_censorship_got_bridges"),
)
self._got_bridges()
else:
self._got_no_bridges()
except (
MeekNotRunning,
MeekNotFound,
) as e:
self._got_no_bridges()
except CensorshipCircumventionError as e:
self.common.log(
"AutoConnectTab",
"use_bridge_connect_clicked",
"Request to the Tor Censorship Circumvention API failed. No network connection?",
)
self.network_connection_error()
def check_for_updates(self):
"""
Check for OnionShare updates in a new thread, if enabled.
"""
if self.common.platform == "Windows" or self.common.platform == "Darwin":
if self.common.settings.get("use_autoupdate"):
def update_available(update_url, installed_version,
latest_version):
Alert(
self.common,
strings._("update_available").format(
update_url, installed_version, latest_version),
)
self.update_thread = UpdateThread(self.common,
self.common.gui.onion)
self.update_thread.update_available.connect(update_available)
self.update_thread.start()
def tor_con_success(self):
"""
Finished testing tor connection.
"""
self.tor_con.hide()
self.first_launch_widget.show_buttons()
self.use_bridge_widget.show_buttons()
self.use_bridge_widget.progress.hide()
self.use_bridge_widget.progress_label.hide()
if self.common.gui.onion.is_authenticated(
) and not self.tor_con.wasCanceled():
# Tell the tabs that Tor is connected
self.tor_is_connected.emit()
# After connecting to Tor, check for updates
self.check_for_updates()
# Close the tab
self.close_this_tab.emit()
def tor_con_fail(self, msg):
"""
Finished testing tor connection.
"""
self.tor_con.hide()
# If there is a message, update the text of the bridge widget
if msg:
self.use_bridge_widget.connection_error_message.setText(msg)
# If we're on first launch, check if wasCanceled
# If cancelled, stay in first launch widget and show buttons
# Else, switch to use bridge
if self.first_launch_widget.isVisible():
if self.tor_con.wasCanceled():
self.first_launch_widget.show_buttons()
else:
self.first_launch_widget.show_buttons()
self.first_launch_widget.hide()
self.use_bridge_widget.show()
else:
self.use_bridge_widget.show_buttons()
def reload_settings(self):
"""
Reload the latest Tor settings, and reset to show the
first-launch widget if it had been hidden.
"""
self.curr_settings.load()
self.auto_connect_enabled = self.curr_settings.get("auto_connect")
self.first_launch_widget.enable_autoconnect_checkbox.setChecked(
self.auto_connect_enabled)
self.use_bridge_widget.hide()
self.first_launch_widget.show_buttons()
self.first_launch_widget.show()
def check(self, force=False):
self.common.log("UpdateChecker", "check", f"force={force}")
# Load the settings
settings = Settings(self.common)
settings.load()
# If force=True, then definitely check
if force:
check_for_updates = True
else:
check_for_updates = False
# See if it's been 1 day since the last check
autoupdate_timestamp = settings.get("autoupdate_timestamp")
if autoupdate_timestamp:
last_checked = datetime.datetime.fromtimestamp(
autoupdate_timestamp)
now = datetime.datetime.now()
one_day = datetime.timedelta(days=1)
if now - last_checked > one_day:
check_for_updates = True
else:
check_for_updates = True
# Check for updates
if check_for_updates:
self.common.log("UpdateChecker", "check", "checking for updates")
# Download the latest-version file over Tor
try:
# User agent string includes OnionShare version and platform
user_agent = f"OnionShare {self.common.version}, {self.common.platform}"
# If the update is forced, add '?force=1' to the URL, to more
# accurately measure daily users
path = "/latest-version.txt"
if force:
path += "?force=1"
if Version(self.onion.tor_version) >= Version("0.3.2.9"):
onion_domain = (
"lldan5gahapx5k7iafb3s4ikijc4ni7gx5iywdflkba5y2ezyg6sjgyd.onion"
)
else:
onion_domain = "elx57ue5uyfplgva.onion"
self.common.log("UpdateChecker", "check",
f"loading http://{onion_domain}{path}")
(socks_address, socks_port) = self.onion.get_tor_socks_port()
socks.set_default_proxy(socks.SOCKS5, socks_address,
socks_port)
s = socks.socksocket()
s.settimeout(15) # 15 second timeout
s.connect((onion_domain, 80))
http_request = f"GET {path} HTTP/1.0\r\n"
http_request += f"Host: {onion_domain}\r\n"
http_request += f"User-Agent: {user_agent}\r\n"
http_request += "\r\n"
s.sendall(http_request.encode("utf-8"))
http_response = s.recv(1024)
latest_version = (
http_response[http_response.find(b"\r\n\r\n"):].strip(
).decode("utf-8"))
self.common.log(
"UpdateChecker",
"check",
f"latest OnionShare version: {latest_version}",
)
except Exception as e:
self.common.log("UpdateChecker", "check", str(e))
self.update_error.emit()
raise UpdateCheckerCheckError
# Validate that latest_version looks like a version string
# This regex is: 1-3 dot-separated numeric components
version_re = r"^(\d+\.)?(\d+\.)?(\d+)$"
if not re.match(version_re, latest_version):
self.update_invalid_version.emit(latest_version)
raise UpdateCheckerInvalidLatestVersion(latest_version)
# Update the last checked timestamp (dropping the seconds and milliseconds)
timestamp = (datetime.datetime.now().replace(
microsecond=0).replace(second=0).timestamp())
# Re-load the settings first before saving, just in case they've changed since we started our thread
settings.load()
settings.set("autoupdate_timestamp", timestamp)
settings.save()
# Do we need to update?
update_url = "https://onionshare.org"
installed_version = self.common.version
if installed_version < latest_version:
self.update_available.emit(update_url, installed_version,
latest_version)
return
# No updates are available
self.update_not_available.emit()
