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#!/usr/local/cpanel/3rdparty/bin/perl # cpanel - scripts/ftpquotacheck 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 package scripts::ftpquotacheck; use strict; use warnings; use Cpanel::PwCache::Helpers (); use Cpanel::PwCache::Build (); use Cpanel::Config::LoadCpConf (); use Cpanel::JSON (); # PPI NO PARSE - speed up LoadCpConf use Cpanel::ConfigFiles (); use Try::Tiny; use constant ANON_FTP_UID => 65535; use constant FTP_GID => 65535; exit( __PACKAGE__->new( 'force' => ( @ARGV && grep( /force/, @ARGV ) ), 'verbose' => 1 )->run() ) unless caller(); sub new { my ( $class, %args ) = @_; require Cpanel::IONice; require Cpanel::OSSys; my $cpconf_ref = Cpanel::Config::LoadCpConf::loadcpconf_not_copy(); my $self = {%args}; $self->{'purequotacheck'} = _find_purequotacheck(); $self->{'ftp_gid'} = scalar( getgrnam 'ftp' ) || FTP_GID; $self->{'start_time'} = time(); $self->{'ftpquotacheck_expire_time'} = $cpconf_ref->{'ftpquotacheck_expire_time'}; $self->{'ionice_ftpquotacheck'} = $cpconf_ref->{'ionice_ftpquotacheck'}; return bless $self, $class; } sub run { my ($self) = @_; print "Ftp Quota Check v2.0\n" if $self->{'verbose'}; return 0 if !$self->{'purequotacheck'}; if ( Cpanel::IONice::ionice( 'best-effort', exists $self->{'ionice_ftpquotacheck'} ? $self->{'ionice_ftpquotacheck'} : 6 ) ) { print "[ftpquotacheck] Setting I/O priority to reduce system load: " . Cpanel::IONice::get_ionice() . "\n" if $self->{'verbose'}; } Cpanel::OSSys::nice(10); local $| = 1; $self->process_users(); return 0; } sub process_users { my ($self) = @_; 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(); my $pwcache_ref = Cpanel::PwCache::Build::fetch_pwcache(); my $processed_users = 0; foreach my $pwref (@$pwcache_ref) { my ( $username, $uid, $gid, $homedir ) = (@$pwref)[ 0, 2, 3, 7 ]; if ( $self->_ftp_is_suspended_for_user($username) ) { print "Skipping suspended FTP users for cPanel Account \"$username\"\n" if $self->{'verbose'}; next; } if ( -e $homedir . '/etc/ftpquota' ) { my $ftp_users_to_process_ar = $self->_get_ftp_users_to_process($username); if ( $ftp_users_to_process_ar && @$ftp_users_to_process_ar ) { $processed_users++; print "Processing cPanel Account \"$username\": \n" if $self->{'verbose'}; $self->_rebuild_ftp_quota_for_virtual_ftp_users( 'system_user' => $username, 'uid' => $uid, 'gid' => $gid, 'user_ftphome_ar' => $ftp_users_to_process_ar, ); print "Done\n" if $self->{'verbose'}; } } } return $processed_users; } sub _get_ftp_users_to_process { my ( $self, $username ) = @_; open my $ftp_fh, '<', $self->_get_ftp_user_pw_file($username) or return undef; my @ftp_users_to_process; while ( my $line = readline $ftp_fh ) { # Do not process comments. # The official file format does not support comments, but we add one anyway when users are suspended. next if $line =~ m{ \A \s* [#] }xms; chomp $line; my ( $ftpuser, $ftphome ) = ( split( /:/, $line ) )[ 0, 5 ]; # Do not process the main username or the _logs # user as this will result in building an .ftpquota # for the entire home directory next if $ftpuser eq $username . '_logs' || $ftpuser eq $username || $ftpuser eq 'anonymous'; push @ftp_users_to_process, [ $ftpuser, $ftphome ]; } close($ftp_fh); return \@ftp_users_to_process; } sub _update_anon_ftpquota { my ( $self, %args ) = @_; my ( $mode, $uid, $gid, $ftphome ) = @args{ 'ftphome_mode', 'uid', 'gid', 'ftphome' }; require Cpanel::SafeFind; require Cpanel::AccessIds::ReducedPrivileges; require Cpanel::FileUtils::Write; require Cpanel::Finally; my $files = 0; my $bytes = 0; $mode //= 0750; $mode &= 07777; # Mask off any non-perm bits so it can be restored later. This will be 0 if the account is suspended! my $temp_mode = $mode | 0770; # Ensure user and group can write, but retain "other" perms which is the anonymous access switch. my $restore_perms = Cpanel::Finally->new( sub { if ( $mode != $temp_mode ) { # Restore previous perms. my $privs = Cpanel::AccessIds::ReducedPrivileges->new( $uid, $gid ); chmod $mode, $ftphome; } } ); { my $privs = Cpanel::AccessIds::ReducedPrivileges->new( $uid, $gid ); chmod $temp_mode, $ftphome if ( $mode != $temp_mode ); Cpanel::SafeFind::find( { 'wanted' => sub { return if $File::Find::name =~ m/\/\.+$/; my ( $tuid, $tgid, $tbytes ) = ( lstat($File::Find::name) )[ 4, 5, 7 ]; return if ( $tuid != ANON_FTP_UID || $tgid != $self->{'ftp_gid'} ); $files += 1; $bytes += $tbytes; }, 'no_chdir' => 1 }, $ftphome ); } { my $privs = Cpanel::AccessIds::ReducedPrivileges->new( ANON_FTP_UID, $self->{'ftp_gid'}, $gid ); try { Cpanel::FileUtils::Write::overwrite( $ftphome . '/.ftpquota', "$files $bytes\n", 0644 ); } catch { warn "Unable to write $ftphome/.ftpquota: $@"; } } return 1; } sub _run_pure_quota_check_for_user { my ( $self, %args ) = @_; require Cpanel::SafeRun::Object; my ( $system_user, $ftphome ) = @args{ 'system_user', 'ftphome' }; my $run = Cpanel::SafeRun::Object->new( 'program' => $self->{'purequotacheck'}, 'args' => [ '-u', $system_user, '-d', $ftphome ], 'user' => $system_user, 'homedir' => $ftphome, 'stdout' => \*STDOUT, 'stderr' => \*STDERR, ); return $run->CHILD_ERROR() ? 0 : 1; } sub _rebuild_ftp_quota_for_virtual_ftp_users { my ( $self, %args ) = @_; my ( $system_user, $users_to_process_ar, $uid, $gid ) = @args{ 'system_user', 'user_ftphome_ar', 'uid', 'gid' }; foreach my $user_ref (@$users_to_process_ar) { my ( $user, $ftphome ) = @{$user_ref}; if ( -d $ftphome ) { my $mode = ( stat(_) )[2]; if ( !$self->{'force'} && -e $ftphome . '/.ftpquota' && ( stat(_) )[9] + ( 86400 * ( $self->{'ftpquotacheck_expire_time'} || 30 ) ) > $self->{'start_time'} ) { print " $system_user : $user ... skipped (not expired)\n" if $self->{'verbose'}; next; } print " $system_user : $user ($ftphome)..." if $self->{'verbose'}; my %args = ( 'system_user' => $system_user, 'ftp_user' => $user, 'ftphome_mode' => $mode, 'uid' => $uid, 'gid' => $gid, 'ftphome' => $ftphome ); if ( $user eq 'ftp' ) { $self->_update_anon_ftpquota(%args); } else { $self->_run_pure_quota_check_for_user(%args); } print "rebuilt\n" if $self->{'verbose'}; } } return 1; } sub _get_ftp_user_pw_file { my ( $self, $user ) = @_; return "/$Cpanel::ConfigFiles::FTP_PASSWD_DIR/$user"; } sub _ftp_is_suspended_for_user { my ( $self, $user ) = @_; return -e $self->_get_ftp_user_pw_file($user) . '.suspended'; } sub _find_purequotacheck { # Mocked in tests. return -x '/usr/sbin/pure-quotacheck' ? '/usr/sbin/pure-quotacheck' : -x '/usr/local/sbin/pure-quotacheck' ? '/usr/local/sbin/pure-quotacheck' : ''; }