User account expiration control panel for SME Server
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#!/usr/bin/perl -w
use esmith::AccountsDB;
use esmith::ConfigDB;
use esmith::event;
use Text::Template;
use DateTime;
use User::pwent;
use Getopt::Long;
my $a = esmith::AccountsDB->open || die "Couldn't open the AccountsDB";
my $c = esmith::ConfigDB->open || die "Couldn't open the ConfigDB";
my $domain = $c->get_value('DomainName');
my $debug = 0;
GetOptions(
debug => \$debug,
);
my $service = $c->get('ExpireAccounts') ||
$c->new_record('ExpireAccounts',
{
type => 'service',
status => 'enabled'
}
);
my $warn_delay = $service->prop('WarningDelay') || '30';
my $recipient = $service->prop('WarningRecipient') || 'root';
my $days_between_warn = $service->prop('DaysBetweenWarnings') || '5';
my $archive_compress = $service->prop('ArchiveCompression') || '/usr/bin/xz';
my $archive_path = $service->prop('ArchivePath') || '/home/e-smith/files/archives/users';
my $archive_ext = 'xz';
if ( !-x $archive_compress ){
print "$archive_compress not found, switching back to the default /bin/gzip\n" if ($debug);
$archive_compress = '/bin/gzip';
}
if ( $archive_compress =~ m/xz$/ ){
$archive_ext = 'xz';
}
elsif ( $archive_compress =~ m/bzip2$/ ){
$archive_ext = 'bz2';
}
elsif ( $archive_compress =~ m/gzip$/ ){
$archive_ext = 'gz';
}
else{
print "$archive_compress creates unknown archive format, using a generic .z extension\n" if ($debug);
$archive_ext = 'z';
}
my $rem = {};
my @lock = ();
my @delete = ();
my $now = DateTime->now;
foreach my $user ($a->users){
my $pass = $user->prop('PasswordSet') || 'no';
if ( $pass ne 'yes' ){
print $user->key . ": Account already locked\n" if $debug;
my $delete = $user->prop('ExpireDeleteAfterLock') || 'never';
my $locked_date = $user->prop('ExpireLockedOn') || '';
if ($delete =~ m/^\d+$/ && $locked_date =~ m/^(\d{4})\-(\d{1,2})\-(\d{1,2})$/){
my $locked = DateTime->new(
year => $1,
month => $2,
day => $3,
);
my $delete_date = $locked->add( days => $delete );
if ( $delete_date < $now ){
print $user->key . ": Account must be deleted\n" if $debug;
push @delete, $user->key;
}
}
next;
}
my $lock_date = $user->prop('ExpireLockOn') || 'never';
if ( $lock_date eq 'never' ){
print $user->key . ": No expiration date set\n" if $debug;
next;
}
elsif ( $lock_date !~ m/^(\d{4})\-(\d{1,2})\-(\d{1,2})$/ ){
print $user->key . ": Invalide expiration date ($lock_date)\n" if $debug;
next;
}
my $exp = DateTime->new(
year => $1,
month => $2,
day => $3,
);
if ( $exp < $now ){
print $user->key . ": Expiration date is passed, account must be locked\n" if $debug;
push @lock, $user->key;
}
else{
my $remaining = $exp->delta_days($now)->in_units('days');
print $user->key . ": Account will expire on $lock_date ($remaining days)\n" if $debug;
$rem->{$user->key} = $remaining if $remaining < $warn_delay;
}
}
# Lock accounts which need to be locked now
foreach my $u (@lock){
event_signal('user-expire-account', $u);
}
# Accounts to be deleted
foreach my $u (@delete){
my $user = $a->get($u);
if ( !$user || !$user->prop('type') || $user->prop('type') ne 'user' ){
print $u . ": This is not a user account\n";
next;
}
unless( -d $archive_path ){
print $u . ": $archive_path doesn't exist, can't continue\n" if ($debug);
next;
}
my $archive = $user->prop('ExpireArchiveBeforeDelete') || 'yes';
if ( $archive =~ m/^yes|enabled|1|on$/ ){
# Suspend email delivery, prevent tar ending with exit code 1
# because Maildir changed during archive
system('chmod', '+t', getpwnam($u)->dir)
my $tar = $archive_path . '/' . $u . '-' . $now->ymd . '.tar.' . $archive_ext;
my $res = system(
'tar',
'cf',
$tar,
'--use-compress-program',
$archive_compress,
'-C',
getpwnam($u)->dir,
getpwnam($u)->dir
);
if ( $res == 0 ){
print $u . ": Data archived as $tar. The user account will now be deleted\n" if ($debug);
$user->set_prop( type => 'user-deleted' );
event_signal('user-delete', $u);
$a = esmith::AccountsDB->open || die "Couldn't open AccountsDB\n";
$a->get($u)->delete;
}
}
}
# Send a warning for accounts which will be locked soon
my $send_warn_for = {};
foreach my $user (keys %$rem){
my $rec = $a->get($user) || next;
my $last_notif = $rec->prop('ExpireLastNotifiedOn') || 'never';
my $warn_user = $rec->prop('ExpireWarnUser') || 'disabled';
if ( $last_notif =~ m/^(\d{4})\-(\d{1,2})\-(\d{1,2})/ ){
$last_notif = DateTime->new(
year => $1,
month => $2,
day => $3,
);
if ( $last_notif->delta_days($now)->in_units('days') < $days_between_warn ){
next;
}
}
my $templates = '/etc/e-smith/templates';
my $source = '/usr/lib/smeserver-expire-accounts/userNotifAccountExpiration.tmpl';
# Use templates-custom version by preference if it exists
-f "${templates}-custom${source}" and $templates .= "-custom";
if ( $warn_user =~ m/^enabled|yes|on|1$/ ){
my $t = new Text::Template(TYPE => 'FILE',
SOURCE => "${templates}${source}");
open(QMAIL, "|/var/qmail/bin/qmail-inject -fdo-not-reply\@$domain $user")
|| die "Could not send mail via qmail-inject!\n";
print QMAIL $t->fill_in( HASH => {
conf => \$c,
user => $user,
days => $rem->{$user}
});
close QMAIL;
}
$rec->set_prop('ExpireLastNotifiedOn', $now->ymd);
# This one will be notified to the admin
$send_warn_for->{$user} = {
remaining => $rem->{$user},
name => $rec->prop('FirstName') . ' ' . $rec->prop('LastName')
};
}
if (keys %$send_warn_for > 0){
$templates = '/etc/e-smith/templates';
$source = '/usr/lib/smeserver-expire-accounts/adminNotifNextExpirations.tmpl';
# Use templates-custom version by preference if it exists
-f "${templates}-custom${source}" and $templates .= "-custom";
my $t = new Text::Template(TYPE => 'FILE',
SOURCE => "${templates}${source}");
open(QMAIL, "|/var/qmail/bin/qmail-inject -fdo-not-reply\@$domain $recipient")
|| die "Could not send mail via qmail-inject!\n";
print QMAIL $t->fill_in( HASH => {
conf => \$c,
users => \$send_warn_for
});
close QMAIL;
}
exit 0;