| Server IP : 128.227.220.250 / Your IP : 216.73.216.35 Web Server : Apache/2.4.64 (Unix) OpenSSL/1.0.2k-fips PHP/7.4.33 System : Linux dumont.ece.ufl.edu 3.10.0-1160.95.1.el7.x86_64 #1 SMP Mon Jul 24 13:59:37 UTC 2023 x86_64 User : daemon ( 2) PHP Version : 7.4.33 Disable Function : NONE MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : ON | Sudo : ON | Pkexec : ON Directory : /lib/python2.7/site-packages/firstboot/ |
Upload File : |
#
# frontend.py
#
# Copyright (C) 2011 Red Hat, Inc.
#
# This program 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 2 of the License, or
# (at your option) any later version.
#
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
#
# Red Hat Author(s): Martin Gracik <mgracik@redhat.com>
#
import logging
import os
import shlex
import signal
import subprocess
from .constants import *
# set up logging
logging.basicConfig(level=logging.DEBUG)
log = logging.getLogger('firstboot.frontend')
class Frontend:
def __init__(self):
self.x = None
self.wm_pid = None
def set_lang(self):
try:
i18n = shlex.split(open(I18N).read())
i18n = dict(item.split('=') for item in i18n)
if 'LANG' in i18n:
log.info('setting LANG to %s', i18n['LANG'])
os.environ['LANG'] = i18n['LANG']
except:
os.environ.setdefault("LANG", "en_US.UTF-8")
def startx(self):
def sigusr1_handler(num, frame):
pass
def sigchld_handler(num, frame):
raise OSError
def preexec_fn():
signal.signal(signal.SIGUSR1, signal.SIG_IGN)
old_sigusr1 = signal.signal(signal.SIGUSR1, sigusr1_handler)
old_sigchld = signal.signal(signal.SIGCHLD, sigchld_handler)
os.environ['DISPLAY'] = DISPLAY
cmd = ['Xorg', os.environ['DISPLAY'],
'-ac', '-nolisten', 'tcp', VT]
devnull = os.open('/dev/null', os.O_RDWR)
try:
log.info('starting the Xorg server')
self.x = subprocess.Popen(cmd, stdout=devnull, stderr=devnull,
preexec_fn=preexec_fn)
except OSError as e:
err = 'Xorg server failed to start: %s' % e
log.critical(err)
raise RuntimeError(err)
signal.pause()
signal.signal(signal.SIGUSR1, old_sigusr1)
signal.signal(signal.SIGCHLD, old_sigchld)
log.info('Xorg server started successfully')
# XXX no need to close devnull?
def init_gtk(self):
rd, wr = os.pipe()
pid = os.fork()
if not pid:
import gtk
os.write(wr, '#')
gtk.main()
os._exit(0)
os.read(rd, 1)
os.close(rd)
os.close(wr)
def start_wm(self):
path = os.environ['PATH'].split(':')
wms = [os.path.join(p, wm) for wm in WMS for p in path]
available = [wm for wm in wms if os.access(wm, os.X_OK)]
if not available:
err = 'no window manager available'
log.critical(err)
raise RuntimeError(err)
wm = available[0]
cmd = [wm, '--display', os.environ['DISPLAY']]
self.wm_pid = os.fork()
if not self.wm_pid:
log.info('starting the window manager')
os.execvp(wm, cmd)
try:
pid, status = os.waitpid(self.wm_pid, os.WNOHANG)
except OSError as e:
err = 'window manager failed to start: %s' % e
log.critical(err)
raise RuntimeError(err)
log.info('window manager started successfully')
def merge_xres(self):
if os.access(XRES, os.R_OK):
log.info('merging the Xresources')
p = subprocess.Popen(['xrdb', '-merge', XRES])
p.wait()
def kill(self):
if self.wm_pid:
log.info('killing the window manager')
os.kill(self.wm_pid, 15)
if self.x:
log.info('killing the Xorg server')
os.kill(self.x.pid, 15)
self.x.wait()