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#!/usr/local/cpanel/3rdparty/bin/perl # cpanel - scripts/setupftpserver 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::setupftpserver; use 5.010; use strict; use warnings; use Getopt::Long 2.45 qw( GetOptionsFromArray :config auto_version permute ); use Readonly; use Cpanel::Config::LoadCpConf (); use Cpanel::Config::CpConfGuard (); use Cpanel::Chkservd::Manage (); use Cpanel::RPM::Versions::Directory (); use Cpanel::Services::Enabled (); use Cpanel::Services::Restart (); use Cpanel::PID (); use Cpanel::Init (); use Cpanel::SafeRun::Simple (); use Cpanel::Encoder::Tiny (); use IO::Handle (); Readonly my @FTP_SERVERS => qw(pure-ftpd proftpd); delete @ENV{qw(cp_security_token HTTP_REFERER)}; if ( not caller ) { local $\| = 1; my $script = __PACKAGE__->new(@ARGV); exit $script->run(); } sub new { my ( $class, @args ) = @_; my %attribute; $attribute{'<>'} = sub { $attribute{selected_ftpserver} = shift }; local @ARGV = @args; GetOptions( \%attribute, qw(current force! html! enable-anonymous! <> help), ) or usage(1); usage(0) if $attribute{help}; usage(1) if not $attribute{current} and not $attribute{selected_ftpserver}; $attribute{cpconf} = Cpanel::Config::LoadCpConf::loadcpconf(); return bless \%attribute, $class; } sub get_current { return shift->{cpconf}{ftpserver} } sub run { my $self = shift; my $current_ftpserver = Cpanel::Services::Enabled::is_enabled('ftpd') ? $self->get_current : 'disabled'; if ( $self->{current} ) { say "Current FTP server type: $current_ftpserver"; return 0; } if ( !grep { $self->{selected_ftpserver} eq $_ } ( @FTP_SERVERS, 'disabled' ) ) { say "Unknown FTP server specified.\nTry $0 --help"; return 1; } if ( !$self->{force} && grep { $self->{selected_ftpserver} eq $_ } @FTP_SERVERS ) { my $dir = Cpanel::RPM::Versions::Directory->new( { dont_set_legacy => 1 }, ); my $target_state = $dir->fetch( { section => 'target_settings', key => $self->{selected_ftpserver}, }, ); if ( $target_state && grep { $target_state eq $_ } qw(unmanaged uninstalled) ) { my %target_state_msg = ( unmanaged => 'flagged to be left alone by cPanel', uninstalled => 'explicitly blocked from installation', ); print <<"END_TARGET_STATE_MESSAGE"; WARNING: You are attempting to switch to $self->{selected_ftpserver}, but it has explicitly been set to $target_state in /var/cpanel/rpm.versions.d/ This means its packages have been $target_state_msg{$target_state}. If this was unintentional, you may be able to remove this flag by running the following command and then re-running $0 /usr/local/cpanel/scripts/update_local_rpm_versions --del target_settings.$self->{selected_ftpserver} If you meant to do this, please re-run $0 with --force END_TARGET_STATE_MESSAGE return 2; } } die "Conversion process must be performed as root" if $> != 0; my $pid_obj = Cpanel::PID->new( { pid_file => '/var/run/setupftpserver.pid' }, ); if ( $pid_obj->create_pid_file() <= 0 ) { print <<END_ALREADY_RUNNING; $0 appears to be running already. Please wait for the conversion to finish before attempting another. END_ALREADY_RUNNING return 1; } # Remove the noanonftp touch file if --enable-anonymous is passed on # command line. my $no_anon_ftp = '/var/cpanel/noanonftp'; if ( $self->{'enable-anonymous'} and -e $no_anon_ftp ) { say 'Enabling Anonymous FTP'; unlink $no_anon_ftp; } elsif ( $current_ftpserver eq 'disabled' and $self->{selected_ftpserver} ne 'disabled' and not -e $no_anon_ftp ) { # Default Anonymous FTP off if moving from disabled. say 'Turning Anonymous FTP off'; open my $fh, '>', $no_anon_ftp or die "Couldn't create $no_anon_ftp touch file: $!"; print {$fh} ''; close $fh; } { my $cpconf_guard = Cpanel::Config::CpConfGuard->new(); $self->{cpconf}{ftpserver} = $cpconf_guard->{data}{ftpserver} = $self->{selected_ftpserver}; $cpconf_guard->save(); } $self->{init} = Cpanel::Init->new(); #branch to uninstall/install functions $self->disable_chksrvd_monitoring(); if ( grep { $self->{selected_ftpserver} eq $_ } @FTP_SERVERS ) { $self->enable_ftpserver( $self->{selected_ftpserver}, $current_ftpserver, ); $self->enable_chksrvd_monitoring(); } else { $self->disable_ftpserver($current_ftpserver); $self->install_cpanel_rpms(); } $pid_obj->remove_pid_file(); if ( $self->{'enable-anonymous'} ) { say 'Updated FTP Server'; Cpanel::SafeRun::Simple::saferun('/usr/local/cpanel/scripts/ftpupdate'); } say "\nFTP server conversion complete"; return 0; } sub disable_ftpserver { my ( $self, $running_ftpserver ) = @_; $self->_touch_disable_file(); $self->_halt_and_disable_ftp_in_init($running_ftpserver); require Cpanel::UIUtils::Update; Cpanel::UIUtils::Update::trigger_ui_updates(); return; } sub _touch_disable_file { my ($self) = @_; system 'touch', '/etc/ftpddisable'; return; } sub _halt_and_disable_ftp_in_init { my ( $self, $running_ftpserver ) = @_; say "\nHalting $running_ftpserver"; my $output = $self->{init}->run_command( $running_ftpserver, 'stop' ); say "\nDisabling $running_ftpserver in init system"; $output = $self->{init}->run_command_for_one( 'disable', $running_ftpserver, ); return; } sub _unlink_disable_files { my ($self) = @_; foreach my $disable_file ( qw(ftpd ftpserver), @FTP_SERVERS ) { unlink "/etc/${disable_file}disable" if -e "/etc/${disable_file}disable"; } return; } sub _unlink_auth_check_disabled { my ($self) = @_; # This will be recreated if appropriate when configuration is done unlink '/var/cpanel/ftpd_service_auth_check_disabled' if -e '/var/cpanel/ftpd_service_auth_check_disabled'; return; } sub _build_ftp_conf { my ($self) = @_; my @build_ftp_conf = $self->{html} ? ('--html') : (); system '/usr/local/cpanel/bin/build_ftp_conf', @build_ftp_conf; return; } sub _enable_ftp_server_in_init { my ( $self, $new_ftpserver ) = @_; say "\nEnabling $new_ftpserver in init system"; my $output = $self->{init}->run_command_for_one( 'enable', $new_ftpserver, ); return; } sub _restart_ftpd { my ($self) = @_; my @restart_args = $self->{html} ? ( 1, 0, \&Cpanel::Encoder::Tiny::safe_html_encode_str ) : (); print join "\n", Cpanel::Services::Restart::restartservice( 'ftpd', @restart_args, ); return; } sub enable_ftpserver { my ( $self, $new_ftpserver, $current_ftpserver ) = @_; $self->_unlink_disable_files(); if ( $current_ftpserver ne 'disabled' ) { $self->_halt_and_disable_ftp_in_init($current_ftpserver); } $self->_unlink_auth_check_disabled(); say "\nSwitching FTP server to $new_ftpserver"; $self->install_cpanel_rpms(); $self->_build_ftp_conf(); $self->_enable_ftp_server_in_init($new_ftpserver); $self->_restart_ftpd(); require Cpanel::UIUtils::Update; Cpanel::UIUtils::Update::trigger_ui_updates(); return; } sub install_cpanel_rpms { my $self = shift; say "\nUpdating FTP related packages"; system qw(/usr/local/cpanel/scripts/check_cpanel_pkgs --fix --long-list), ( $ENV{'CPANEL_BASE_INSTALL'} ? '--no-broken' : () ), '--targets' => join ',', @FTP_SERVERS; return; } sub disable_chksrvd_monitoring { my $self = shift; my %monitored_services = Cpanel::Chkservd::Manage::getmonitored(); if ( not $monitored_services{'ftpd'} ) { say "\nChksrvd monitoring is disabled"; return; } say "\nDisabling Chksrvd monitoring"; Cpanel::Chkservd::Manage::disable('ftpd'); my @args = $self->{html} ? ('--html') : (); system '/usr/local/cpanel/scripts/restartsrv_chkservd', @args; return; } sub enable_chksrvd_monitoring { my $self = shift; my %monitored_services = Cpanel::Chkservd::Manage::getmonitored(); if ( $monitored_services{'ftpd'} ) { say "\nChksrvd monitoring is enabled"; return; } say "\nEnabling chksrvd monitoring"; Cpanel::Chkservd::Manage::enable('ftpd'); my @args = $self->{html} ? ('--html') : (); system '/usr/local/cpanel/scripts/restartsrv_chkservd', @args; return; } # We don't use pod2usage because it insists upon downcasing "FTP". sub usage { my ($retval) = @_; my $fh = $retval ? \STDERR : \STDOUT; $fh->print(<<EOM); Usage: setupftpserver [options] <ftpserver> Options: --force Run setup despite warnings that this may fail. --current Display the currently configured FTP server --enable-anonymous Anonymous now defaults to off when moving from disabled. This option forces it on FTP Servers: pure-ftpd Recommended FTP server on cPanel systems proftpd Alternate FTP server disabled Disable local FTP functionality EOM exit $retval; } 1; __END__ =head1 NAME setupftpserver - Set up an FTP server for use with cPanel =head1 SYNOPSIS setupftpserver [options] <ftpserver> =head2 FTP Servers: =over =item I<pure-ftpd> Recommended FTP server on cPanel systems =item I<proftpd> Alternate FTP server =item I<disabled> Disable local FTP functionality =back =head1 OPTIONS Some options below may be preceded with I<no-> in order to negate them. =over =item B<--help> Print a brief help message and exits. =item B<--[no-]force> Run setup despite warnings that this may fail. =item B<--current> Display the currently configured FTP server. =item B<--[no-]enable-anonymous> Anonymous now defaults to off when moving from disabled. This option forces it on. =item B<--[no-]html> Output HTML when reconfiguring and restarting FTP services. =back =cut

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