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| Current File : //proc/self/root/scripts/reset_mail_quotas_to_sane_values |
#!/usr/local/cpanel/3rdparty/bin/perl
# cpanel - scripts/reset_mail_quotas_to_sane_values
# Copyright 2022 cPanel, L.L.C.
# All rights reserved.
# copyright@cpanel.net http://cpanel.net
# This code is subject to the cPanel license. Unauthorized copying is prohibited
use strict;
use warnings;
use Cpanel::LoadFile ();
use Cpanel::PwCache::Helpers ();
use Cpanel::PwCache::Build ();
use Cpanel::Usage ();
use Cpanel::PwCache ();
use Cpanel::AccessIds::SetUids ();
use Cpanel::Config::LoadCpUserFile ();
use Cpanel::Config::HasCpUserFile ();
use Cpanel::Config::Users ();
use Cpanel::Config::LoadUserDomains ();
use Cpanel::SafeFile ();
use Cpanel::Email::Maildir ();
my $version = '1.1';
my $verbose = 0;
my $confirm = 0;
my $force = 0;
# Max quota is actually 1 byte less than get_max_email_quota
# but we'll silently fix the 1 byte issue below
my $max_quota = Cpanel::Email::Maildir::get_max_email_quota();
# Argument processing
my %opts = (
'verbose' => \$verbose,
'confirm' => \$confirm,
'force' => \$force,
);
Cpanel::Usage::wrap_options( \@ARGV, \&usage, \%opts );
if ( $> == 0 && !$confirm ) {
print "Must specify \"--confirm\" to begin. Please read and understand the usage.\n\n";
usage(1);
}
umask(0077); # Keep maildirsize file perms consistent with Exim
my $pwcache_ref;
my %CPUSERS;
my $saveversion = 0;
my $suid = 0;
my $userdomains_ref = {};
if ( $> == 0 ) {
$suid = 1;
Cpanel::PwCache::Helpers::no_uid_cache(); #uid cache only needed if we are going to make lots of getpwuid calls
Cpanel::PwCache::Build::init_passwdless_pwcache();
$pwcache_ref = Cpanel::PwCache::Build::fetch_pwcache();
my $users_arr_ref = Cpanel::Config::Users::getcpusers();
$userdomains_ref = Cpanel::Config::LoadUserDomains::loaduserdomains( {}, 0, 1 );
%CPUSERS = map { $_ => undef } @{$users_arr_ref};
if ( @ARGV && $ARGV[$#ARGV] !~ m/^-/ ) {
if ( exists $CPUSERS{ $ARGV[$#ARGV] } ) {
%CPUSERS = ( $ARGV[$#ARGV] => 1 ); #only do one user
}
else {
%CPUSERS = ();
}
}
my $last_version = Cpanel::LoadFile::loadfile('/var/cpanel/version/reset_mail_quotas_to_sane_values') || '';
if ( $last_version eq $version && !$force ) {
print "You must use --force to run this utility once it has already been run.\n";
exit 1;
}
$saveversion = 1;
}
else {
$confirm = 1;
my @PW = Cpanel::PwCache::getpwuid($>);
$pwcache_ref = [ \@PW ];
%CPUSERS = ( $PW[0] => 1 );
my @DOMAINS;
if ( Cpanel::Config::HasCpUserFile::has_cpuser_file( $PW[0] ) ) {
my $user_info = Cpanel::Config::LoadCpUserFile::loadcpuserfile( $PW[0] ); #we want to load the default so we can use the storable cache
@DOMAINS = ( $user_info->{'DOMAIN'} );
if ( ref $user_info->{'DOMAINS'} ) {
push @DOMAINS, @{ $user_info->{'DOMAINS'} };
}
}
$userdomains_ref->{ $PW[0] } = \@DOMAINS;
}
my ( $user, $useruid, $usergid, $homedir );
foreach my $pwref (@$pwcache_ref) {
( $user, $useruid, $usergid, $homedir ) = (@$pwref)[ 0, 2, 3, 7 ];
next if ( !exists $CPUSERS{$user} );
if ( !$homedir || !-d $homedir ) {
print "Skipping $user\n (no home directory)\n";
next;
}
#All the domains
my @DOMAINS = ref $userdomains_ref->{$user} ? @{ $userdomains_ref->{$user} } : ();
my @needs_cleanup;
foreach my $domain (@DOMAINS) {
if ( -f $homedir . '/etc/' . $domain . '/quota' && -s _ ) {
push @needs_cleanup, $domain;
}
}
if ( !@needs_cleanup ) {
if ($verbose) {
print "Skipping $user as no domains have a quota file.\n";
}
next;
}
#only fork+setuid if we have something do to
if ( my $pid = fork() ) {
waitpid( $pid, 0 );
}
else {
if ($suid) {
Cpanel::PwCache::Build::pwclearcache();
Cpanel::AccessIds::SetUids::setuids( $useruid, $usergid ) || die "Could not setuid to $user";
}
foreach my $domain (@needs_cleanup) {
next if ( !$domain );
normalize_domain_quota( $homedir, $domain, 1 );
}
exit;
}
}
if ($saveversion) {
if ( open( my $v_fh, '>', '/var/cpanel/version/reset_mail_quotas_to_sane_values' ) ) {
print {$v_fh} $version;
close($v_fh);
}
}
sub normalize_domain_quota {
my ( $homedir, $domain, $skip_check_existance ) = @_;
my $dir = $homedir . '/etc/' . $domain;
if ( !$skip_check_existance ) {
return 0 if !-f $dir . '/quota' || -z _;
}
my %quota_by_user;
my $altered = 0;
my $safelock = Cpanel::SafeFile::safeopen( \*QUOTAFH, '+<', $dir . '/quota' );
if ($safelock) {
while ( my $line = readline( \*QUOTAFH ) ) {
chomp $line;
my ( $user, $quota ) = split( /:/, $line, 2 );
next if !$user || !$quota;
# Quota values above 2GB will be converted to unlimited
if ( ( int $quota ) > $max_quota ) {
print "Quota for user $user\@$domain exceedes maximum of $max_quota. Quota removed.\n" if $verbose;
$altered = 1;
next;
}
# Remove 1 byte for quota values equal to 2GB
if ( ( int $quota ) == $max_quota ) {
$quota = $max_quota - 1;
$altered = 1;
}
$quota_by_user{$user} = $quota;
}
seek( QUOTAFH, 0, 0 );
if ($altered) {
print "Updated quota file for $domain.\n" if $verbose;
if ( scalar keys %quota_by_user ) {
print QUOTAFH join( "\n", map { $_ . ':' . $quota_by_user{$_} } keys %quota_by_user ) . "\n";
}
truncate( QUOTAFH, tell(QUOTAFH) );
}
Cpanel::SafeFile::safeclose( \*QUOTAFH, $safelock );
return 1;
}
return 0;
}
sub usage {
my ($exit) = @_;
$exit = $exit ? 1 : 0;
print <<'EOM';
Usage: reset_mail_quotas_to_sane_values <modifier> <user>
This utility regenerates quota files and removes any quotas
above the maximum allowed size of : $max_size
Modifier Flags:
--force - This required flag indicates that the utility
should be run even if it has already been run in the past
--confirm - This required flag indicates that the utility
should proceed to regenerate the quota files
based upon the provided options. It is required for
normal operation.
--verbose - This optional flag turns on verbose mode for
enhanced activity reporting to STDOUT.
--help - display this message and exit.
EOM
exit $exit;
}