gajim3/gajim/gajim.py
2022-10-19 18:54:49 +00:00

163 lines
4.6 KiB
Python

# Copyright (C) 2018 Philipp Hörist <philipp AT hoerist.com>
#
# This file is part of Gajim.
#
# Gajim 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.
#
# Gajim 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 Gajim. If not, see <http://www.gnu.org/licenses/>.
import os
os.environ['PYTHON_KEYRING_BACKEND']='keyring.backends.SecretService.Keyring'
import sys
import signal
import platform
from ctypes import CDLL, byref, create_string_buffer
from ctypes.util import find_library
from packaging.version import Version as V
import gajim.gui
from gajim.common import i18n
_MIN_NBXMPP_VER = '2.0.4'
_MIN_GTK_VER = '3.22.27'
_MIN_CAIRO_VER = '1.16.0'
_MIN_PYGOBJECT_VER = '3.32.0'
_MIN_GLIB_VER = '2.60.0'
def check_version(dep_name, current_ver, min_ver):
if V(current_ver) < V(min_ver):
sys.exit('Gajim needs %s >= %s (found %s) to run. '
'Quitting...' % (dep_name, min_ver, current_ver))
def _check_required_deps():
error_message = 'Gajim needs %s to run. Quitting… (Error: %s)'
try:
import nbxmpp
except ImportError as error:
sys.exit(error_message % ('python-nbxmpp', error))
try:
import gi
except ImportError as error:
sys.exit(error_message % ('pygobject', error))
try:
gi.require_versions({'GLib': '2.0',
'Gio': '2.0',
'Gtk': '3.0',
'GObject': '2.0',
'Pango': '1.0',
'Soup': '2.4'})
except ValueError as error:
sys.exit('Missing dependency: %s' % error)
try:
import cairo
except ImportError as error:
sys.exit(error_message % ('python-cairo', error))
from gi.repository import Gtk
gtk_ver = '%s.%s.%s' % (Gtk.get_major_version(),
Gtk.get_minor_version(),
Gtk.get_micro_version())
from gi.repository import GLib
glib_ver = '.'.join(map(str, [GLib.MAJOR_VERSION,
GLib.MINOR_VERSION,
GLib.MICRO_VERSION]))
check_version('python-nbxmpp', nbxmpp.__version__, _MIN_NBXMPP_VER)
check_version('pygobject', gi.__version__, _MIN_PYGOBJECT_VER)
check_version('libcairo', cairo.cairo_version_string(), _MIN_CAIRO_VER)
check_version('python-cairo', cairo.version, _MIN_CAIRO_VER)
check_version('gtk3', gtk_ver, _MIN_GTK_VER)
check_version('glib', glib_ver, _MIN_GLIB_VER)
def _init_gui(gui):
if gui == 'GTK':
_init_gtk()
def _disable_csd():
if sys.platform != 'win32':
return
if 'GTK_CSD' in os.environ:
# Respect user settings
return
os.environ['GTK_CSD'] = '0'
def _init_gtk():
gajim.gui.init('gtk')
from gajim.gui import exception
exception.init()
i18n.initialize_direction_mark()
def _run_app():
from gajim.application import GajimApplication
application = GajimApplication()
_install_sginal_handlers(application)
application.run(sys.argv)
def _set_proc_title():
sysname = platform.system()
if sysname in ('Linux', 'FreeBSD', 'OpenBSD', 'NetBSD'):
libc = CDLL(find_library('c'))
# The constant defined in <linux/prctl.h> which is used to set the name
# of the process.
PR_SET_NAME = 15
if sysname == 'Linux':
proc_name = b'gajim'
buff = create_string_buffer(len(proc_name)+1)
buff.value = proc_name
libc.prctl(PR_SET_NAME, byref(buff), 0, 0, 0)
elif sysname in ('FreeBSD', 'OpenBSD', 'NetBSD'):
libc.setproctitle('gajim')
def _install_sginal_handlers(application):
def sigint_cb(num, stack):
print('SIGINT/SIGTERM received')
application.quit()
# ^C exits the application normally
signal.signal(signal.SIGINT, sigint_cb)
signal.signal(signal.SIGTERM, sigint_cb)
if sys.platform != 'win32':
signal.signal(signal.SIGPIPE, signal.SIG_DFL)
def main():
if sys.platform != 'win32':
if os.geteuid() == 0:
sys.exit('You must not launch gajim as root, it is insecure.')
_check_required_deps()
_set_proc_title()
_disable_csd()
_init_gui('GTK')
_run_app()