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Server IP : 20.75.53.88 / Your IP : 216.73.217.165 [ Reverse IP ]
Web Server : Apache
System : Linux VMRALP-3 4.4.0-256-generic #290~14.04.1-Ubuntu SMP Thu Jun 20 09:24:50 UTC 2024 x86_64
User : www-data ( 33)
PHP Version : 5.5.9-1ubuntu4.29+esm15
Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,
Domains : 3 Domains
MySQL : ON | cURL : OFF | WGET : ON | Perl : ON | Python : ON | Sudo : ON | Pkexec : ON
Directory : /usr/share/unattended-upgrades/

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Current File : /usr/share/unattended-upgrades/unattended-upgrade-shutdown

#!/usr/bin/python3
# Copyright (c) 2009 Canonical Ltd
#
# AUTHOR:
# Michael Vogt <mvo@ubuntu.com>
#
# unattended-upgrade-shutdown - helper that checks if a
# unattended-upgrade is in progress and waits until it exists
#
# This file is part of unattended-upgrades
#
# unattended-upgrades 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.
#
# unattended-upgrades 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 unattended-upgrades; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#

import copy
import signal
import sys
import time
import logging
import logging.handlers
import gettext
import subprocess
import os.path

from optparse import OptionParser
from gettext import gettext as _

try:
    import apt_pkg
except:
    # if there is no python-apt no unattended-upgrades can run so not
    # need to stop the shutdown
    logging.exception("importing of apt_pkg failed, exiting")
    sys.exit(0)


def do_usplash(msg):
    if os.path.exists("/sbin/usplash_write"):
        logging.debug("Running usplash_write")
        subprocess.call(["/sbin/usplash_write", "TEXT", msg])
        subprocess.call(["/sbin/usplash_write", "PULSATE"])


def do_plymouth(msg):
    if os.path.exists("/bin/plymouth"):
        logging.debug("Running plymouth --text")
        subprocess.call(["/bin/plymouth", "message", "--text", msg])


def log_msg(msg, level=logging.WARN):
    """ helper that will print msg to usplash, plymouth, console """
    logging.log(level, msg)
    do_plymouth(msg)
    do_usplash(msg)


def log_progress():
    """ helper to log the install progress (if any) """
    # wait a some seconds and try again
    msg = _("Unattended-upgrade in progress during shutdown, "
            "sleeping for 5s")
    # progress info
    progress = "/var/run/unattended-upgrades.progress"
    if os.path.exists(progress):
        msg += "\n" + open(progress).read()
    # log it
    log_msg(msg)


if __name__ == "__main__":
    # setup gettext
    localesApp = "unattended-upgrades"
    localesDir = "/usr/share/locale"
    gettext.bindtextdomain(localesApp, localesDir)
    gettext.textdomain(localesApp)

    parser = OptionParser()
    parser.add_option("", "--debug",
                      action="store_true", dest="debug", default=False,
                      help="print debug messages")
    parser.add_option("", "--delay", default=10,
                      help="delay in minutes to wait for unattended-upgrades")
    parser.add_option("", "--lock-file",
                      default="/var/run/unattended-upgrades.lock",
                      help="lock file location")
    (options, args) = parser.parse_args()

    # setup logging
    level = logging.INFO
    if options.debug:
        level = logging.DEBUG

    # use a normal logfile instead of syslog too as on shutdown its too
    # easy to get syslog killed
    logdir = apt_pkg.config.find_dir(
        "Unattended-Upgrade::LogDir", "/var/log/unattended-upgrades/")
    if not os.path.exists(logdir):
        os.makedirs(logdir)
    logfile = os.path.join(logdir, "unattended-upgrades-shutdown.log")
    logging.basicConfig(filename=logfile,
                        level=level,
                        format="%(asctime)s %(levelname)s - %(message)s")

    # check if we need to run unattended-upgrades on shutdown and if so,
    # run it
    p = None
    apt_pkg.init_config()
    if apt_pkg.config.find_b("Unattended-Upgrade::InstallOnShutdown", False):
        env = copy.copy(os.environ)
        env["UNATTENDED_UPGRADES_FORCE_INSTALL_ON_SHUTDOWN"] = "1"
        logging.debug("starting unattended-upgrades in shutdown mode")
        p = subprocess.Popen(["unattended-upgrade"], env=env)
        log_msg(_("Running unattended-upgrades in shutdown mode"))
        while True:
            log_progress()
            if p.poll() is not None:
                break
            time.sleep(5)

    # run the monitoring loop and keep the "UI" updated
    start_time = time.time()
    lock_was_taken = False
    while True:
        res = apt_pkg.get_lock(options.lock_file)
        logging.debug("get_lock returned %i" % res)
        # exit here if there is no lock
        if res > 0:
            logging.debug("lock not taken")
            break
        lock_was_taken = True
        # signal unattended-upgrades to stop
        p = "/var/run/unattended-upgrades.pid"
        if os.path.exists(p):
            pid = int(open(p).read())
            logging.debug("found running unattended-upgrades pid %s" % pid)
            os.kill(pid, signal.SIGUSR1)
        # show log
        log_progress()
        time.sleep(5)
        if (time.time() - start_time) > options.delay*60:
            logging.warning(_("Giving up on lockfile after %s delay") %
                            options.delay)
            sys.exit(1)

    # add finished info to the log/terminal to help tracking down
    # LP: #434835
    if lock_was_taken:
        # re-use existing string
        log_msg(_("All upgrades installed"), logging.INFO)
    sys.exit(0)

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