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360 lines
11 KiB
360 lines
11 KiB
# -*- coding: utf-8 -*- |
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# |
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# Greeter.py |
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# |
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# Copyright © 2017 Antergos |
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# |
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# This file is part of Web Greeter. |
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# |
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# Web Greeter is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 3 of the License, or |
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# (at your option) any later version. |
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# |
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# Web Greeter is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# The following additional terms are in effect as per Section 7 of the license: |
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# |
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# The preservation of all legal notices and author attributions in |
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# the material or in the Appropriate Legal Notices displayed |
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# by works containing it is required. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with Web Greeter; If not, see <http://www.gnu.org/licenses/>. |
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# Standard Lib |
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import subprocess |
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import re |
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# 3rd-Party Libs |
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import gi |
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gi.require_version('LightDM', '1') |
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from gi.repository import LightDM |
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from whither.bridge import ( |
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BridgeObject, |
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bridge, |
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Variant, |
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) |
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from PyQt5.QtCore import QTimer |
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# This Application |
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from . import ( |
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language_to_dict, |
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layout_to_dict, |
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session_to_dict, |
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user_to_dict, |
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battery_to_dict, |
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debugLog |
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) |
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LightDMGreeter = LightDM.Greeter() |
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LightDMUsers = LightDM.UserList() |
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def changeBrightness(self, method: str, quantity: int): |
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if self._config.features.backlight["enabled"] != True: |
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return |
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try: |
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steps = self._config.features.backlight["steps"] |
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child = subprocess.run(["xbacklight", method, str(quantity), "-steps", str(steps)]) |
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if child.returncode == 1: |
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raise ChildProcessError("xbacklight returned 1") |
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except Exception as err: |
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debugLog("Brightness: {}".format(err), 4) |
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else: |
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self.brightness_update.emit() |
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pass |
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def getBrightness(self): |
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if self._config.features.backlight["enabled"] != True: |
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return -1 |
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try: |
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level = subprocess.run(["xbacklight", "-get"], stdout=subprocess.PIPE, stderr=subprocess.PIPE, text=True, check=True) |
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return int(level.stdout) |
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except Exception as err: |
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debugLog("Battery: {}".format(err), 4) |
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return -1 |
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def updateBattery(self): |
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if self._config.features.battery != True: |
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return |
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try: |
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acpi = subprocess.run(["acpi", "-b"], stdout=subprocess.PIPE, stderr=subprocess.PIPE, text=True, check=True) |
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battery = acpi.stdout.split(": ") |
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data = re.sub("%|,", "", battery[1]) |
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level = data.split(" ")[1] |
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self._battery = int(level) |
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self._acpi = acpi.stdout |
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except Exception as err: |
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debugLog("Battery: {}".format(err), 4) |
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else: |
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self.property_changed.emit() |
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class Greeter(BridgeObject): |
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# LightDM.Greeter Signals |
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authentication_complete = bridge.signal() |
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autologin_timer_expired = bridge.signal() |
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idle = bridge.signal() |
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reset = bridge.signal() |
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show_message = bridge.signal(str, LightDM.MessageType, arguments=('text', 'type')) |
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show_prompt = bridge.signal(str, LightDM.PromptType, arguments=('text', 'type')) |
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brightness_update = bridge.signal() |
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noop_signal = bridge.signal() |
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property_changed = bridge.signal() |
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_battery = -1 |
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_acpi = "" |
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def __init__(self, config, *args, **kwargs): |
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super().__init__(name='LightDMGreeter', *args, **kwargs) |
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self._config = config |
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self._shared_data_directory = '' |
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self._themes_directory = config.themes_dir |
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LightDMGreeter.connect_to_daemon_sync() |
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self._connect_signals() |
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self._determine_shared_data_directory_path() |
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def _determine_shared_data_directory_path(self): |
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user = LightDMUsers.get_users()[0] |
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user_data_dir = LightDMGreeter.ensure_shared_data_dir_sync(user.get_name()) |
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self._shared_data_directory = user_data_dir.rpartition('/')[0] |
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def _connect_signals(self): |
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LightDMGreeter.connect( |
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'authentication-complete', |
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lambda greeter: self._emit_signal(self.authentication_complete) |
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) |
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LightDMGreeter.connect( |
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'autologin-timer-expired', |
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lambda greeter: self._emit_signal(self.autologin_timer_expired) |
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) |
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LightDMGreeter.connect('idle', lambda greeter: self._emit_signal(self.idle)) |
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LightDMGreeter.connect('reset', lambda greeter: self._emit_signal(self.reset)) |
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LightDMGreeter.connect( |
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'show-message', |
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lambda greeter, msg, mtype: self._emit_signal(self.show_message, msg, mtype) |
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) |
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LightDMGreeter.connect( |
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'show-prompt', |
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lambda greeter, msg, mtype: self._emit_signal(self.show_prompt, msg, mtype) |
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) |
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def _emit_signal(self, _signal, *args): |
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self.property_changed.emit() |
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QTimer().singleShot(300, lambda: _signal.emit(*args)) |
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@bridge.prop(str, notify=property_changed) |
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def authentication_user(self): |
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return LightDMGreeter.get_authentication_user() or '' |
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@bridge.prop(bool, notify=noop_signal) |
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def autologin_guest(self): |
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return LightDMGreeter.get_autologin_guest_hint() |
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@bridge.prop(int, notify=noop_signal) |
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def autologin_timeout(self): |
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return LightDMGreeter.get_autologin_timeout_hint() |
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@bridge.prop(str, notify=noop_signal) |
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def autologin_user(self): |
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return LightDMGreeter.get_autologin_user_hint() |
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@bridge.prop(Variant, notify=property_changed) |
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def batteryData(self): |
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return battery_to_dict(self._acpi) |
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@bridge.prop(int, notify=brightness_update) |
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def brightness(self): |
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return getBrightness(self) |
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@brightness.setter |
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def brightness(self, quantity): |
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return changeBrightness(self, "-set", quantity) |
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@bridge.prop(bool, notify=noop_signal) |
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def can_hibernate(self): |
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return LightDM.get_can_hibernate() |
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@bridge.prop(bool, notify=noop_signal) |
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def can_restart(self): |
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return LightDM.get_can_restart() |
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@bridge.prop(bool, notify=noop_signal) |
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def can_shutdown(self): |
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return LightDM.get_can_shutdown() |
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@bridge.prop(bool, notify=noop_signal) |
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def can_suspend(self): |
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return LightDM.get_can_suspend() |
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@bridge.prop(bool, notify=noop_signal) |
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def can_access_brightness(self): |
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return self._config.features.backlight["enabled"] |
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@bridge.prop(bool, notify=noop_signal) |
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def can_access_battery(self): |
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return self._config.features.battery |
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@bridge.prop(str, notify=noop_signal) |
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def default_session(self): |
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return LightDMGreeter.get_default_session_hint() |
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@bridge.prop(bool, notify=noop_signal) |
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def has_guest_account(self): |
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return LightDMGreeter.get_has_guest_account_hint() |
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@bridge.prop(bool, notify=noop_signal) |
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def hide_users_hint(self): |
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return LightDMGreeter.get_hide_users_hint() |
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@bridge.prop(str, notify=noop_signal) |
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def hostname(self): |
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return LightDM.get_hostname() |
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@bridge.prop(bool, notify=property_changed) |
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def in_authentication(self): |
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return LightDMGreeter.get_in_authentication() |
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@bridge.prop(bool, notify=property_changed) |
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def is_authenticated(self): |
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return LightDMGreeter.get_is_authenticated() |
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@bridge.prop(Variant, notify=property_changed) |
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def language(self): |
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return language_to_dict(LightDM.get_language()) |
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@bridge.prop(Variant, notify=noop_signal) |
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def languages(self): |
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return [language_to_dict(lang) for lang in LightDM.get_languages()] |
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@bridge.prop(Variant, notify=noop_signal) |
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def layout(self): |
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return layout_to_dict(LightDM.get_layout()) |
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@bridge.prop(Variant, notify=noop_signal) |
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def layouts(self): |
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return [layout_to_dict(layout) for layout in LightDM.get_layouts()] |
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@bridge.prop(bool, notify=noop_signal) |
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def lock_hint(self): |
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return LightDMGreeter.get_lock_hint() |
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@bridge.prop(Variant, notify=property_changed) |
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def remote_sessions(self): |
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return [session_to_dict(session) for session in LightDM.get_remote_sessions()] |
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@bridge.prop(bool, notify=noop_signal) |
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def select_guest_hint(self): |
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return LightDMGreeter.get_select_guest_hint() |
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@bridge.prop(str, notify=noop_signal) |
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def select_user_hint(self): |
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return LightDMGreeter.get_select_user_hint() or '' |
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@bridge.prop(Variant, notify=noop_signal) |
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def sessions(self): |
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return [session_to_dict(session) for session in LightDM.get_sessions()] |
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@bridge.prop(str, notify=noop_signal) |
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def shared_data_directory(self): |
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return self._shared_data_directory |
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@bridge.prop(bool, notify=noop_signal) |
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def show_manual_login_hint(self): |
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return LightDMGreeter.get_show_manual_login_hint() |
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@bridge.prop(bool, notify=noop_signal) |
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def show_remote_login_hint(self): |
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return LightDMGreeter.get_show_remote_login_hint() |
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@bridge.prop(str, notify=noop_signal) |
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def themes_directory(self): |
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return self._themes_directory |
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@bridge.prop(Variant, notify=noop_signal) |
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def users(self): |
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return [user_to_dict(user) for user in LightDMUsers.get_users()] |
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@bridge.method(str) |
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def authenticate(self, username): |
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LightDMGreeter.authenticate(username) |
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self.property_changed.emit() |
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@bridge.method() |
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def authenticate_as_guest(self): |
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LightDMGreeter.authenticate_as_guest() |
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self.property_changed.emit() |
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@bridge.method() |
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def batteryUpdate(self): |
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return updateBattery(self) |
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@bridge.method(int) |
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def brightnessSet(self, quantity): |
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return changeBrightness(self, "-set", quantity) |
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@bridge.method(int) |
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def brightnessIncrease(self, quantity): |
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return changeBrightness(self, "-inc", quantity) |
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@bridge.method(int) |
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def brightnessDecrease(self, quantity): |
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return changeBrightness(self, "-dec", quantity) |
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@bridge.method() |
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def cancel_authentication(self): |
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LightDMGreeter.cancel_authentication() |
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self.property_changed.emit() |
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@bridge.method() |
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def cancel_autologin(self): |
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LightDMGreeter.cancel_autologin() |
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self.property_changed.emit() |
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@bridge.method(result=bool) |
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def hibernate(self): |
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return LightDM.hibernate() |
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@bridge.method(str) |
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def respond(self, response): |
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LightDMGreeter.respond(response) |
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self.property_changed.emit() |
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@bridge.method(result=bool) |
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def restart(self): |
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return LightDM.restart() |
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@bridge.method(str) |
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def set_language(self, lang): |
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if self.is_authenticated: |
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LightDMGreeter.set_language(lang) |
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self.property_changed.emit() |
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@bridge.method(result=bool) |
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def shutdown(self): |
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return LightDM.shutdown() |
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@bridge.method(str, result=bool) |
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def start_session(self, session): |
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if not session.strip(): |
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return |
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return LightDMGreeter.start_session_sync(session) |
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@bridge.method(result=bool) |
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def suspend(self): |
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return LightDM.suspend() |
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