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

# cpanel - scripts/update_sa_config                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

# This code is designed to be run in the post step of the SpamAssassin RPM install only.

use strict;
use warnings;

use Cpanel::SafeFile ();
use Cpanel::Binaries ();

if ( $ENV{CPANEL_BASE_INSTALL} ) {
    print STDERR "“$0” refuses to run during a cPanel installation.\n";
    exit(0);
}

# Put previously unmanaged RPM config files back in place
my $config_dir = '/etc/mail/spamassassin/';
foreach my $config (qw/local.cf init.pre v310.pre v312.pre v320.pre v330.pre/) {
    my $config_orig = $config_dir . $config . '.rpmorig';
    next unless ( -e $config_orig );

my $config = $config_dir . $config;
    print "Restoring $config from its pre-RPM state\n";
    unlink $config;
    chmod 0644, $config_orig;
    rename( $config_orig, $config );
}

# Import GPG keys for sa-update
my $saupdate_binary = Cpanel::Binaries::path('sa-update');
my $update_gpg_key  = '/etc/mail/spamassassin/sa-update-keys/sa-update-pubkey.txt';
print `$saupdate_binary --import $update_gpg_key 2>&1` if ( -e $update_gpg_key );

# Make sure resource limits are 268435456 if not set.
my $block = Cpanel::SafeFile::safeopen( \*SB, '+<', '/etc/mail/spamassassin/local.cf' );

if ( !$block ) {
    die("Could not edit /etc/mail/spamassassin/local.cf");
}

my @local_cf = <SB>;
if ( !grep( /ResourceLimits/, @local_cf ) ) {
    print "Enabled SpamAssassin Resource Limits Plugin\n";
    print SB "\nloadplugin Mail::SpamAssassin::Plugin::ResourceLimits\n";
    print SB "resource_limit_mem 268435456\n\n";
}

#268435456 is required for 3.3.1 or later
elsif ( grep( /resource_limit_mem 134217728/, @local_cf ) ) {
    @local_cf = map { s/resource_limit_mem 134217728/resource_limit_mem 268435456/; $_ } @local_cf;
    seek( SB, 0, 0 );
    print SB join( '', @local_cf );
    truncate( SB, tell(SB) );
}
Cpanel::SafeFile::safeclose( \*SB, $block );