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Edit File: mailscannerupdate

#!/usr/local/cpanel/3rdparty/bin/perl

# cpanel - scripts/mailscannerupdate               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 Cpanel::SafeFile;
use Cpanel::Logger ();
use strict;

my $logger = Cpanel::Logger->new();

if ( $ARGV[0] !~ /force/i ) {
    print "$0: This script should not be run manually.  If you really wanted to do that, please add --force\n";
    exit(1);
}

unless ( -e '/etc/exim_trusted_configs' ) {
    if ( open my $trusted_fh, '>', '/etc/exim_trusted_configs' ) {
        print {$trusted_fh} "/etc/exim_outgoing.conf\n";
        close $trusted_fh;
    }
    else {
        print "Warning: Unable to create /etc/exim_trusted_config file!\n";
    }
}

if ( open my $conf_fh, '<', '/etc/exim.conf' ) {
    while (<$conf_fh>) {
        if ( m/^\s*av_scanner/ || m/MailScanner/ ) {
            close $conf_fh;
            exit 0;
        }
    }
    close $conf_fh;
}

if ( -e '/etc/exim_outgoing.conf' ) {
    print 'Mail Scanner exim.conf updating...';
    mkdir( '/etc/exim', 0755 );
    system 'cp', '-fv', '/etc/exim.conf', '/etc/exim_outgoing.conf';

my $file     = '/etc/exim.conf';
    my $filelock = Cpanel::SafeFile::safeopen( \*FH, '+<', $file );
    if ( !$filelock ) {
        $logger->die("Could not read from $file");
    }
    my @CONF = <FH>;
    seek( FH, 0, 0 );
    foreach (@CONF) {
        next if m/^\s*system_filter/ || m/^\s*spool_directory/ || m/^\s*queue_only/ || m/^\s*queue_only_override/;
        print FH;

if (m/cPanel\s+Exim\s+4\s+Config/) {
            print FH "\n";
            print FH "spool_directory = /var/spool/exim_incoming\n";
            print FH "queue_only = true\n";
            print FH "queue_only_override = false\n\n";
        }
        if (m/^begin routers/) {
            print FH <<'EOM';

defer_router:
		driver = redirect
		allow_defer
		data = :defer: All deliveries are handled by MailScanner
		verify = false

EOM
        }
    }
    truncate( FH, tell(FH) );
    Cpanel::SafeFile::safeclose( \*FH, $filelock );

if ( -d '/usr/local/etc/exim' ) {
        system 'cp', '-fv', '/etc/exim.conf', '/usr/local/etc/exim/configure';
    }

print "Done\n";
    require 'scripts/checkexim.pl';
    scripts::checkexim::checkeximperms();
}

exit 0;