#!/usr/bin/perl

# Copyright (C) 2007-2023 X2Go Project - https://wiki.x2go.org
# Copyright (C) 2007-2023 Oleksandr Shneyder <o.shneyder@phoca-gmbh.de>
# Copyright (C) 2007-2023 Heinz-Markus Graesing <heinz-m.graesing@obviously-nice.de>
#
# 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, write to the
# Free Software Foundation, Inc.,
# 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.

use strict;
use Sys::Hostname;
use Sys::Syslog qw( :standard :macros );

use X2Go::Server::DB qw(db_listsessions db_listsessions_all db_changestatus);
use X2Go::Server::Agent qw(session_is_suspended session_is_running has_agent_state_file);
use X2Go::Log qw(loglevel);

use X2Go::Utils qw( system_capture_stdout_output is_true );
my $x2go_lib_path = system_capture_stdout_output("x2gopath", "libexec");

openlog($0,'cons,pid','user');
setlogmask( LOG_UPTO(loglevel()) );

if ( @ARGV ) {
	syslog('info', "x2golistsessions has been called with options: @ARGV");
} else {
	# hiding normal x2golistsessions calls into debug loglevel
	syslog('debug', "x2golistsessions has been called with no option");
}

if ((hostname eq '(none)') || (hostname eq 'localhost')) {
	die "Hostname of X2Go Server is not set-up correctly, check /etc/hostname. Exiting..."
}

my $serv=shift;
if( ! $serv)
{
	$serv=hostname;
}

my @outp;
if($serv eq "--all-servers")
{
	@outp=db_listsessions_all();
}
else
{
	@outp=db_listsessions($serv);
}

for (my $i=0;$i<@outp;$i++)
{
	@outp[$i] =~ s/ //g;
	@outp[$i] =~ s/\*/ /g;
	my @sinfo=split('\\|',"@outp[$i]");
	if (@sinfo[4]eq 'F') {
		print "@outp[$i]\n";
	} else {
		if (has_agent_state_file(@sinfo[1], @sinfo[11]))
		{
			if (@sinfo[4]eq 'R')
			{
				if(session_is_suspended(@sinfo[1], @sinfo[11]))
				{
					db_changestatus( 'S', @sinfo[1]);
					@outp[$i] =~ s/\|R\|/\|S\|/;
					system("x2goumount-session", "@sinfo[1]");
					system("$x2go_lib_path/x2gormforward", "@sinfo[1]");
				}
			}
			elsif (@sinfo[4]eq 'S')
			{
				if(session_is_running(@sinfo[1], @sinfo[11]))
				{
					db_changestatus( 'R', @sinfo[1] );
					@outp[$i] =~ s/\|S\|/\|R\|/;
				}
			}
		}
		print "@outp[$i]\n";
	}
}

# closing syslog
closelog;
