136 lines
3.9 KiB
Python
136 lines
3.9 KiB
Python
#!/usr/bin/env python3
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# Copyright (c) 2012, Matthias Schiffer <mschiffer@universe-factory.net>
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# 1. Redistributions of source code must retain the above copyright notice,
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# this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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import signal
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import sys
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import os
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import pwd
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import locale
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import argparse
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from gi.repository import Gtk, Gdk, Gio
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from Locker import Locker
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from LockWindow import LockWindow
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import Message
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import pam
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_ = locale.gettext
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def get_username():
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return pwd.getpwuid(os.getuid())[0]
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theme = 'UzL-login'
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parser = argparse.ArgumentParser(prog='pylock', description=_('GTK-based screen locker.'))
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parser.add_argument('-t', '--timeout', type=int, default=0, help=_('Start in daemon mode that will automatically activate after a given time of inactivity.'))
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parser.add_argument('-l', '--logout', type=int, default=0, help=_('Allow to logout the current user after a given time.'))
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parser.add_argument('-c', '--logout-command', help=_('Specifies the command to be called to log out a user.'))
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parser.add_argument('-u', '--username', default=get_username(), help=_('Set the name of the user that is able to unlock the screen.'))
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args = parser.parse_args()
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def handler(signum, frame):
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Gtk.main_quit()
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signal.signal(signal.SIGINT, handler)
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signal.signal(signal.SIGTERM, handler)
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signal.signal(signal.SIGQUIT, handler)
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locale.setlocale(locale.LC_ALL, '')
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locale.textdomain('pylock')
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Gtk.Settings.get_default().set_property('gtk-theme-name', theme)
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if Message.getSelection() != 0:
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if args.timeout == 0:
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Message.sendLockMessage()
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exit(0)
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else:
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print('There seems to be a Pylock instance already running.', file=sys.stderr)
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exit(1)
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window = LockWindow()
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if not Message.acquireSelection(window):
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print('Unable to register for lock messages', file=sys.stderr)
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def lock(timeLeft):
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window.updateLockMessage(args.username, timeLeft)
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window.lock()
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def logout():
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try:
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os.system(args.logout_command)
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except:
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pass
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window.reset(False)
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def updateTimeout(timeLeft):
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window.updateLockMessage(args.username, timeLeft)
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if args.logout_command is None:
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locker = Locker(args.timeout, lock, window.unlock)
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else:
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locker = Locker(args.timeout, lock, window.unlock, args.logout, logout, updateTimeout)
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def _triggerLock(w, e):
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locker.lock()
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window.connect('map-event', _triggerLock)
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pamAuth = pam.pam()
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def tryUnlock(w, password):
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if pamAuth.authenticate(args.username, password):
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locker.unlock()
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if args.timeout == 0:
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Gtk.main_quit()
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else:
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window.reset()
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window.setAuthMessage(pamAuth.reason)
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return True
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window.connect('logout', lambda w: locker.logout())
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window.connect('tryUnlock', tryUnlock)
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Gtk.main()
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