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#!/usr/bin/env python3
#
# Copyright (C) 2018 VyOS maintainers and contributors
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 or later as
# published by the Free Software Foundation.
#
# 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/>.
import os
import sys
import argparse
import subprocess
import re
from datetime import datetime, timedelta, time as type_time, date as type_date
from subprocess import check_output, CalledProcessError, STDOUT
from vyos.util import ask_yes_no
def parse_time(s):
try:
if re.match(r'^\d{1,2}$', s):
return datetime.strptime(s, "%M").time()
else:
return datetime.strptime(s, "%H:%M").time()
except ValueError:
return None
def parse_date(s):
for fmt in ["%d%m%Y", "%d/%m/%Y", "%d.%m.%Y", "%d:%m:%Y", "%Y-%m-%d"]:
try:
return datetime.strptime(s, fmt).date()
except ValueError:
continue
# If nothing matched...
return None
def get_shutdown_status():
try:
output = check_output(["/bin/systemctl", "status", "systemd-shutdownd.service"]).decode()
return output
except CalledProcessError:
return None
def check_shutdown():
output = get_shutdown_status()
if output:
r = re.findall(r'Status: \"(.*)\"\n', output)
if r:
# When available, that line is like
# Status: "Shutting down at Thu 1970-01-01 00:00:00 UTC (poweroff)..."
print(r[0])
else:
# Sometimes status string is not available immediately
# after service startup
print("Poweroff or reboot is scheduled")
else:
print("Poweroff or reboot is not scheduled")
def cancel_shutdown():
output = get_shutdown_status()
if output:
try:
timenow = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
cmd = check_output(["/sbin/shutdown","-c","--no-wall"])
message = "Scheduled reboot or poweroff has been cancelled %s" % timenow
os.system("wall %s" % message)
except CalledProcessError as e:
sys.exit("Could not cancel a reboot or poweroff: %s" % e)
else:
print("Reboot or poweroff is not scheduled")
def execute_shutdown(time, reboot = True, ask=True):
if not ask:
action = "reboot" if reboot else "poweroff"
if not ask_yes_no("Are you sure you want to %s this system?" % action):
sys.exit(0)
action = "-r" if reboot else "-P"
if len(time) == 0:
### T870 legacy reboot job support
chk_vyatta_based_reboots()
###
cmd = check_output(["/sbin/shutdown",action,"now"],stderr=STDOUT)
print(cmd.decode().split(",",1)[0])
return
elif len(time) == 1:
# Assume the argument is just time
ts = parse_time(time[0])
if ts is not None:
cmd = check_output(["/sbin/shutdown", action, time[0]], stderr=STDOUT)
else:
sys.exit("Invalid time \"{0}\". The valid format is HH:MM".format(time[0]))
elif len(time) == 2:
# Assume it's date and time
ts = parse_time(time[0])
ds = parse_date(time[1])
if ts is not None and ds:
t = datetime.combine(ds, ts)
td = t - datetime.now()
t2 = 1 + int(td.total_seconds())//60 # Get total minutes
cmd = check_output(["/sbin/shutdown", action, str(t2)], stderr=STDOUT)
else:
if not ts:
sys.exit("Invalid time \"{0}\". The valid format is HH:MM".format(time[0]))
else:
sys.exit("Invalid time \"{0}\". A valid format is YYYY-MM-DD [HH:MM]".format(time[1]))
else:
sys.exit("Could not decode date and time. Valids formats are HH:MM or YYYY-MM-DD HH:MM")
check_shutdown()
def chk_vyatta_based_reboots():
### T870 commit-confirm is still using the vyatta code base, once gone, the code below can be removed
### legacy scheduled reboot s are using at and store the is as /var/run/<name>.job
### name is the node of scheduled the job, commit-confirm checks for that
f = r'/var/run/confirm.job'
if os.path.exists(f):
jid = open(f).read().strip()
if jid != 0:
subprocess.call(['sudo', 'atrm', jid])
os.remove(f)
def main():
parser = argparse.ArgumentParser()
parser.add_argument("--yes", "-y",
help="Do not ask for confirmation",
action="store_true",
dest="yes")
action = parser.add_mutually_exclusive_group(required=True)
action.add_argument("--reboot", "-r",
help="Reboot the system",
nargs="*",
metavar="Minutes|HH:MM")
action.add_argument("--poweroff", "-p",
help="Poweroff the system",
nargs="*",
metavar="Minutes|HH:MM")
action.add_argument("--cancel", "-c",
help="Cancel pending shutdown",
action="store_true")
action.add_argument("--check",
help="Check pending chutdown",
action="store_true")
args = parser.parse_args()
try:
if args.reboot is not None:
execute_shutdown(args.reboot, reboot=True, ask=args.yes)
if args.poweroff is not None:
execute_shutdown(args.poweroff, reboot=False,ask=args.yes)
if args.cancel:
cancel_shutdown()
if args.check:
check_shutdown()
except KeyboardInterrupt:
sys.exit("Interrupted")
if __name__ == "__main__":
main()
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