#!/usr/bin/perl -w

#----------------------------------------------------------------------
# Copyright (C) 2012 Firewall Services
# daniel@firewall-services.com
#
# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
#----------------------------------------------------------------------

use esmith::AccountsDB;
use esmith::ConfigDB;
use File::Find;
use File::stat;

my $c = esmith::ConfigDB->open_ro || die "Error opening ConfigDB\n";
my $a = esmith::AccountsDB->open_ro || die "Error opening AccountsDB\n";
my $smb = $c->get('smb') || die "Can't find the smb service in the ConfigDB\n";
my $recycle = $smb->prop('RecycleBin') || 'disabled';
our $retention = $smb->prop('RecycleBinRetention') || 'unlimited';
$retention = 'unlimited' unless ($retention =~ m/^\d+$/);
# Convert retention in seconds
$retention = 60*60*24*$retention;

exit(0) if (($recycle ne 'enabled') || ($retention eq 'unlimited'));

foreach my $user ($a->get_all_by_prop(type=>'user')){
    my $key = $user->key;
    # Skip the user if RecycleBin doesn't exists
    next unless (-d "/home/e-smith/files/users/$key/home/Recycle Bin");
    finddepth(\&remove, "/home/e-smith/files/users/$key/home/Recycle Bin/");
}

sub remove{
    # Remove files with last modification older than $retention
    if ( -f ){
        my $mtime = stat($_)->mtime;
        (time() - $mtime > $retention) && unlink($_);
    }
    # Remove empty directories
    elsif ( -d ){
        (scalar <"$_/*">) || rmdir("$_");
    }
}