116 lines
2.4 KiB
Perl
Executable File
116 lines
2.4 KiB
Perl
Executable File
#!/usr/bin/perl
|
|
|
|
use 5.018;
|
|
use strict;
|
|
use warnings "all";
|
|
use utf8;
|
|
use open qw(:std :utf8);
|
|
|
|
my $workdir;
|
|
|
|
# before we run, change working dir
|
|
BEGIN {
|
|
use Cwd qw(chdir abs_path);
|
|
my @CWD = split (/\//, abs_path ($0));
|
|
if ($#CWD > 1) { $#CWD = $#CWD - 2; }
|
|
$workdir = join ('/', @CWD);
|
|
chdir ($workdir);
|
|
}
|
|
|
|
use lib ("$workdir/lib", "$workdir/vendor_perl", "$workdir/vendor_perl/lib/perl5");
|
|
no Cwd;
|
|
use Cwd::utf8 qw(chdir abs_path);
|
|
use POSIX qw(setgid setuid setsid);
|
|
use File::Path qw(make_path);
|
|
use File::Basename qw(basename dirname);
|
|
use conf qw(loadConf);
|
|
use botlib qw(logger);
|
|
use telegrambot qw(run_telegrambot);
|
|
|
|
sub daemonize ();
|
|
sub __fork ();
|
|
|
|
$| = 1;
|
|
my $runAsUid = $<;
|
|
|
|
my $piddir = "/var/run/" . basename (abs_path ($0));
|
|
my $C = loadConf ();
|
|
|
|
# if we run under root, create pid dir and set correct owner for it, same for debug log if it is defined
|
|
if ($< == 0) {
|
|
my $user = $C->{user};
|
|
die "Unable to run as root, please define unprivileged user in config.json\n" unless (defined ($user));
|
|
my ($uid, $gid) = (getpwnam ($user))[2,3];
|
|
|
|
unless (-d $piddir) {
|
|
make_path (
|
|
$piddir, {
|
|
uid => $uid,
|
|
group => $gid
|
|
}
|
|
);
|
|
}
|
|
|
|
if ($C->{'debug_log'}) {
|
|
unless (-d dirname($C->{'debug_log'})) {
|
|
make_path (
|
|
dirname($C->{'debug_log'}), {
|
|
uid => $uid,
|
|
group => $gid
|
|
}
|
|
);
|
|
}
|
|
}
|
|
|
|
# drop privs
|
|
setgid ($gid) or die "Unable to switch to group of $user($!)\n";
|
|
setuid ($uid) or die "Unable to switch to account $user($!)\n";
|
|
} else {
|
|
$piddir = $workdir;
|
|
}
|
|
|
|
# double fork attach to /dev/null all stdio and go background
|
|
daemonize ();
|
|
|
|
# write pidfile
|
|
my $apath = abs_path ($0);
|
|
|
|
unless (defined($apath)) {
|
|
logger ("Unable to get abs_path: $!");
|
|
die "Unable to get abs_path: $!\n";
|
|
};
|
|
|
|
# write pidfile
|
|
my $pidfile = sprintf ("%s/%s.pid", $piddir, basename ($apath));
|
|
logger ("Creating pidfile at $pidfile");
|
|
open (PID, ">", $pidfile) or die "Error opening $pidfile: $!\n";
|
|
print PID $$ or die "Error writing to $pidfile: $!\n";
|
|
close PID;
|
|
|
|
# set correct proctitle
|
|
$0 = abs_path ($0);
|
|
|
|
# run bot, at last
|
|
run_telegrambot ();
|
|
unlink ($pidfile) if (-f $pidfile);
|
|
exit 0;
|
|
|
|
sub daemonize () {
|
|
__fork ();
|
|
POSIX::setsid ();
|
|
open (STDIN, "<", "/dev/null");
|
|
open (STDOUT, ">", "/dev/null");
|
|
open (STDERR, ">", "/dev/null");
|
|
__fork ();
|
|
umask 0;
|
|
}
|
|
|
|
sub __fork () {
|
|
my $pid = fork;
|
|
die "Can't fork: $!\n" unless (defined ($pid));
|
|
exit if ($pid != 0);
|
|
}
|
|
|
|
__END__
|
|
# vim: set ft=perl noet ai ts=4 sw=4 sts=4:
|