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# 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
import platform
import signal
import sqlite3
import sys
from ctypes import byref
from ctypes import CDLL
from ctypes import create_string_buffer
from ctypes.util import find_library
from types import FrameType
from packaging.version import Version as V
_MIN_NBXMPP_VER = '4.4.0'
_MIN_GTK_VER = '3.24.30'
_MIN_CAIRO_VER = '1.16.0'
_MIN_PYGOBJECT_VER = '3.42.0'
_MIN_GLIB_VER = '2.60.0'
_MIN_PANGO_VER = '1.50.0'
_MIN_SQLITE_VER = '3.33.0'
def check_version(dep_name: str, current_ver: str, min_ver: str) -> None:
if V(current_ver) < V(min_ver):
sys.exit(f'Gajim needs {dep_name} >= {min_ver} '
f'(found {current_ver}) to run. Quitting...')
def _check_required_deps() -> None:
error_message = 'Gajim needs {lib} to run. Quitting… (Error: {error})'
try:
import nbxmpp
except ImportError as error:
sys.exit(error_message.format('python-nbxmpp', error))
try:
import gi
except ImportError as error:
sys.exit(error_message.format('pygobject', error))
try:
gi.require_versions({'GLib': '2.0',
'Gio': '2.0',
'Gtk': '3.0',
'GtkSource': '4',
'GObject': '2.0',
'Pango': '1.0',
'PangoCairo': '1.0'})
except ValueError as error:
sys.exit(f'Missing dependency: {error}')
try:
import cairo
except ImportError as error:
sys.exit(error_message.format('pycairo', error))
from gi.repository import Gtk
gtk_ver = '.'.join(map(str, [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]))
from gi.repository import Pango
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('pycairo', cairo.version, _MIN_CAIRO_VER)
check_version('gtk3', gtk_ver, _MIN_GTK_VER)
check_version('glib', glib_ver, _MIN_GLIB_VER)
check_version('pango', Pango.version_string(), _MIN_PANGO_VER)
check_version('sqlite', sqlite3.sqlite_version, _MIN_SQLITE_VER)
def _init_translations() -> None:
import gajim.common.i18n
gajim.common.i18n.init()
def _init_gui(gui: str) -> None:
if gui == 'GTK':
_init_gtk()
def _set_env_vars() -> None:
# Disable legacy ciphers in cryptography
os.environ['CRYPTOGRAPHY_OPENSSL_NO_LEGACY'] = '1'
if sys.platform != 'win32':
return
if 'GTK_CSD' in os.environ:
# Respect user settings
return
os.environ['GTK_CSD'] = '0'
def _init_gtk() -> None:
from gajim.gtk import exception
exception.init()
def _run_app() -> None:
from gajim.gtk.application import GajimApplication
application = GajimApplication()
def sigint_cb(num: int, stack: FrameType | None) -> None:
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)
application.run(sys.argv)
def _set_proc_title() -> None:
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 run() -> None:
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()
_set_env_vars()
_init_translations()
_init_gui('GTK')
_run_app()
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