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#!/usr/local/cpanel/3rdparty/bin/perl # cpanel - scripts/builddovecotconf 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::builddovecotconf; use strict; use Cpanel::Config::LoadCpConf (); use Cpanel::AdvConfig (); use Cpanel::AdvConfig::dovecot (); use Cpanel::AdvConfig::dovecot::utils (); use Cpanel::Usage (); use Cpanel::FileUtils::TouchFile (); use Cpanel::Autodie (); use Cpanel::FileUtils::Access (); use Cpanel::Mkdir (); use Cpanel::Rand (); use Cpanel::Rand::Get (); use Cpanel::Dovecot (); use DBI (); use DBD::SQLite (); use Cpanel::DBI::SQLite (); use Cpanel::LoadModule (); use Try::Tiny; our $CONF_PERMS = 0644; __PACKAGE__->script(@ARGV) unless caller(); sub script { my ( $class, @args ) = @_; my $force = 0; my $leave_broken = 0; my $now = time(); Cpanel::Usage::wrap_options( \@args, \&usage, { 'force' => \$force, 'leave-broken' => \$leave_broken } ); my $cpconf_ref = Cpanel::Config::LoadCpConf::loadcpconf(); if ( $> != 0 ) { die "Insufficient permissions to rebuild dovecot.conf"; } my $dovecot_conf = Cpanel::AdvConfig::dovecot::utils::find_dovecot_conf(); my $test_dovecot_conf = Cpanel::Rand::get_tmp_file_by_name($dovecot_conf); die 'Failed to get a temporary working file!' if ( $test_dovecot_conf eq '/dev/null' ); chmod( $CONF_PERMS, $test_dovecot_conf ) or die "Could not set permissions on $test_dovecot_conf: $!"; # make sure the local template is valid _check_local_template() if !$leave_broken; my $values_to_change = _generate_config_and_check_syntax( $force, $test_dovecot_conf, $dovecot_conf, $leave_broken ); # If dovecot complained certain values are too low, we need to adjust them if ( scalar keys %$values_to_change ) { _generate_config_and_check_syntax( $force, $test_dovecot_conf, $dovecot_conf, $leave_broken, $values_to_change ); } # This will be cached, so there's no big hit my $conf_hr = Cpanel::AdvConfig::dovecot::get_config(); if ( $conf_hr->{'protocols'} =~ /imap(\s\|$)/ ) { unlink '/var/cpanel/imap_tcp_check_disabled' if ( -e '/var/cpanel/imap_tcp_check_disabled' ); } else { Cpanel::FileUtils::TouchFile::touchfile('/var/cpanel/imap_tcp_check_disabled') unless ( -e '/var/cpanel/imap_tcp_check_disabled' ); } _setup_dovecot_dirs(); _setup_sqlite_dbs(); Cpanel::AdvConfig::dovecot::process_config_changes($conf_hr); rename $test_dovecot_conf, $dovecot_conf or do { warn "Failed to install $dovecot_conf: $!"; }; unlink $dovecot_conf . '.datastore'; # Just in case _build_includes(); return 1; } sub _build_includes { for my $include ( 'dovecotSSL', 'dovecotSNI' ) { try { my $module = "Cpanel::AdvConfig::$include"; Cpanel::LoadModule::load_perl_module($module); $module->new()->rebuild_conf(); } catch { warn "The system failed to rebuild Dovecot’s $include configuration file:\n$_"; }; } return 1; } sub _generate_config_and_check_syntax { my ( $force, $test_dovecot_conf, $dovecot_conf, $leave_broken, $values_to_change ) = @_; my $config_opts_hr = { 'service' => 'dovecot', 'force' => $force, '_target_conf_file' => $test_dovecot_conf }; if ( $values_to_change and ref $values_to_change eq 'HASH' ) { $config_opts_hr->{'values_to_change'} = $values_to_change; } my ( $returnval, $message ) = Cpanel::AdvConfig::generate_config_file($config_opts_hr); if ( !$returnval ) { print "Failed to build $dovecot_conf\n$message\n"; unlink $test_dovecot_conf; exit 1; } ( $returnval, $message, my $new_values_to_change ) = Cpanel::AdvConfig::dovecot::check_syntax($test_dovecot_conf); if ( !$returnval ) { print <<"EOM"; Configuration generation failed with the following message: $message EOM unless ($force) { unlink $test_dovecot_conf unless ($leave_broken); exit 1; } } return $new_values_to_change; } sub usage { print <<EO_USAGE; Usage: builddovecotconf [options] Options: --help Brief help message --force Force installation of new conf file even if syntax check fails --leave-broken Leave broken dovecot.conf on the disk so that it can be manually examined EO_USAGE exit 0; } # Check the local template to make sure it is valid sub _check_local_template { my ( $valid_or_not_found, @errs ) = Cpanel::AdvConfig::dovecot::check_if_local_template_is_valid(); return 1 if $valid_or_not_found; my ( $local_template, $error ) = Cpanel::AdvConfig::dovecot::get_template_file(); if ( !$local_template ) { print $error . "\n"; return; } my $attempts = 1; my $broken_template = _generate_broken_local_template_name($local_template); while ( -e $broken_template && $attempts < 11 ) { sleep(1); $broken_template = _generate_broken_local_template_name($local_template); } if ( -e $broken_template ) { print "The local template file '$local_template' is invalid, but the system was unable to determine an unused filename to rename it to.\n"; return; } print "The local template file '$local_template' is invalid. The system will rename it to $broken_template.\n"; # yes, there is a small race condition here, but I'm betting we never hit it unless we start calling this script a lot more rename $local_template, $broken_template; Cpanel::AdvConfig::dovecot::send_icontact( $broken_template, @errs ); return; } sub _generate_broken_local_template_name { my ($local_template) = @_; return $local_template . '.broken.' . time . '.' . Cpanel::Rand::Get::getranddata(16); } sub _setup_dovecot_dirs { Cpanel::Mkdir::ensure_directory_existence_and_mode( $Cpanel::Dovecot::CP_DOVECOT_STORAGE, 0770 ); Cpanel::FileUtils::Access::ensure_mode_and_owner( $Cpanel::Dovecot::CP_DOVECOT_STORAGE, 0770, 'dovecot' ); Cpanel::Mkdir::ensure_directory_existence_and_mode( $Cpanel::Dovecot::LASTLOGIN_DIR, 0700 ); Cpanel::FileUtils::Access::ensure_mode_and_owner( $Cpanel::Dovecot::LASTLOGIN_DIR, 0700, 'dovecot' ); return 1; } sub _setup_sqlite_dbs { Cpanel::Autodie::unlink_if_exists($Cpanel::Dovecot::SQLITE_LASTLOGIN_DB_FILE); return 1; } 1;

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