tools/actions/session_manager.py

   1 # Copyright 2021 Erfan Abdi
   2 # SPDX-License-Identifier: GPL-3.0-or-later
   3 import logging
   4 import os
   5 import signal
   6 import sys
   7 import tools.config
   8 import tools.helpers.ipc
   9 from tools import services
  10 import dbus
  11 import dbus.service
  12 import dbus.exceptions
  13 from gi.repository import GLib
  14 import copy
  15
  16 class DbusSessionManager(dbus.service.Object):
  17     def __init__(self, looper, bus, object_path, args):
  18         self.args = args
  19         self.looper = looper
  20         dbus.service.Object.__init__(self, bus, object_path)
  21
  22     @dbus.service.method("id.waydro.SessionManager", in_signature='', out_signature='')
  23     def Stop(self):
  24         do_stop(self.args, self.looper)
  25         stop_container(quit_session=False)
  26
  27 def service(args, looper):
  28     dbus_obj = DbusSessionManager(looper, dbus.SessionBus(), '/SessionManager', args)
  29     looper.run()
  30
  31 def start(args, unlocked_cb=None, background=True):
  32     try:
  33         name = dbus.service.BusName("id.waydro.Session", dbus.SessionBus(), do_not_queue=True)
  34     except dbus.exceptions.NameExistsException:
  35         logging.error("Session is already running")
  36         if unlocked_cb:
  37             unlocked_cb()
  38         return
  39
  40     session = copy.copy(tools.config.session_defaults)
  41
  42     # TODO: also support WAYLAND_SOCKET?
  43     wayland_display = session["wayland_display"]
  44     if wayland_display == "None" or not wayland_display:
  45         logging.warning('WAYLAND_DISPLAY is not set, defaulting to "wayland-0"')
  46         wayland_display = session["wayland_display"] = "wayland-0"
  47
  48     if os.path.isabs(wayland_display):
  49         wayland_socket_path = wayland_display
  50     else:
  51         xdg_runtime_dir = session["xdg_runtime_dir"]
  52         if xdg_runtime_dir == "None" or not xdg_runtime_dir:
  53             logging.error(f"XDG_RUNTIME_DIR is not set; please don't start a Waydroid session with 'sudo'!")
  54             sys.exit(1)
  55         wayland_socket_path = os.path.join(xdg_runtime_dir, wayland_display)
  56     if not os.path.exists(wayland_socket_path):
  57         logging.error(f"Wayland socket '{wayland_socket_path}' doesn't exist; are you running a Wayland compositor?")
  58         sys.exit(1)
  59
  60     waydroid_data = session["waydroid_data"]
  61     if not os.path.isdir(waydroid_data):
  62         os.makedirs(waydroid_data)
  63
  64     dpi = tools.helpers.props.host_get(args, "ro.sf.lcd_density")
  65     if dpi == "":
  66         dpi = os.getenv("GRID_UNIT_PX")
  67         if dpi is not None:
  68             dpi = str(int(dpi) * 20)
  69         else:
  70             dpi = "0"
  71     session["lcd_density"] = dpi
  72
  73     session["background_start"] = "true" if background else "false"
  74
  75     mainloop = GLib.MainLoop()
  76
  77     def sigint_handler(data):
  78         do_stop(args, mainloop)
  79         stop_container(quit_session=False)
  80
  81     def sigusr_handler(data):
  82         do_stop(args, mainloop)
  83
  84     GLib.unix_signal_add(GLib.PRIORITY_HIGH, signal.SIGINT, sigint_handler, None)
  85     GLib.unix_signal_add(GLib.PRIORITY_HIGH, signal.SIGTERM, sigint_handler, None)
  86     GLib.unix_signal_add(GLib.PRIORITY_HIGH, signal.SIGUSR1, sigusr_handler, None)
  87     try:
  88         tools.helpers.ipc.DBusContainerService().Start(session)
  89     except dbus.DBusException as e:
  90         logging.debug(e)
  91         if e.get_dbus_name().startswith("org.freedesktop.DBus.Python"):
  92             logging.error(e.get_dbus_message().splitlines()[-1])
  93         else:
  94             logging.error("WayDroid container is not listening")
  95         sys.exit(0)
  96
  97     services.user_manager.start(args, session, unlocked_cb)
  98     services.clipboard_manager.start(args)
  99     service(args, mainloop)
 100
 101 def do_stop(args, looper):
 102     services.user_manager.stop(args)
 103     services.clipboard_manager.stop(args)
 104     looper.quit()
 105
 106 def stop(args):
 107     try:
 108         tools.helpers.ipc.DBusSessionService().Stop()
 109     except dbus.DBusException:
 110         stop_container(quit_session=True)
 111
 112 def stop_container(quit_session):
 113     try:
 114         tools.helpers.ipc.DBusContainerService().Stop(quit_session)
 115     except dbus.DBusException:
 116         pass