Mini Shell

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

# cpanel - scripts/linksubemailtomainacct          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::linksubemailtomainacct;

use strict;
use Getopt::Long                 ();
use Cpanel::PwCache              ();
use Cpanel::PwCache::Helpers     ();
use Cpanel::PwCache::Build       ();
use Cpanel::LoginDefs            ();
use Cpanel::Config::LoadConfig   ();
use Cpanel::Email::Maildir::Link ();

if ( !caller() ) {
    $| = 1;

    # The -force option is not used, but we'll retain it due to
    # historical precedent, and in case it might be implemented
    # some day.
    my $force        = 0;
    my $quiet        = 0;
    my $exitondelete = 1;
    my $delete       = "";    # delete old symlinks

    my $opt_parse_result = Getopt::Long::GetOptions(
        "force"          => \$force,
        "quiet"          => \$quiet,
        "exitondelete=n" => \$exitondelete,
        "delete=s"       => \$delete,         # don't create new symlinks, just delete old ones for given domain
    );

    usage() unless $opt_parse_result && @ARGV <= 1;    # note ok if $ARGV == 0

    my $convertuser = $ARGV[0];

    __PACKAGE__->script( $convertuser, 'force' => $force, 'quiet' => $quiet, 'delete' => $delete );
}

sub script {
    my ( $class, $convertuser, %OPTS ) = @_;

    my $force  = $OPTS{'force'};
    my $quiet  = $OPTS{'quiet'};
    my $delete = $OPTS{'delete'};
    print "cPanel Email Linker v3.0\n" if !$quiet;

    my $pwcache_ref;
    if ($convertuser) {
        $pwcache_ref = [ [ Cpanel::PwCache::getpwnam($convertuser) ] ];
    }
    else {
        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();
        $pwcache_ref = Cpanel::PwCache::Build::fetch_pwcache();
    }

    my $current_format = scalar Cpanel::Config::LoadConfig::loadConfig( "/etc/mailbox_formats", undef, ": " );
    foreach my $pw ( @{$pwcache_ref} ) {
        my ( $user, $uid, $gid, $homedir ) = ( @{$pw} )[ 0, 2, 3, 7 ];
        ($homedir) = $homedir =~ /(.*)/;             # Untaint
        next
          if ( $uid < Cpanel::LoginDefs::get_uid_min()
            || length($homedir) < 5
            || !-e $homedir . '/etc/'
            || -l $homedir . '/etc/passwd' );

        print "Processing $user..." if !$quiet;
        if ($delete) {
            Cpanel::Email::Maildir::Link::remove_maildir_symlinks_for_users_domain( $pw, $delete );
        }
        elsif ( !$current_format->{$user} || $current_format->{$user} eq 'maildir' ) {
            Cpanel::Email::Maildir::Link::setup_all_maildir_symlinks_for_user($pw);
        }
        else {
            Cpanel::Email::Maildir::Link::remove_all_maildir_symlinks_for_user($pw);
        }
        print "Done\n" if !$quiet;
    }
    return;
}

sub usage {
    die "Usage: $0 [ -force ] [ -quiet ] <username>\n(Note: The -force option is not yet implemented, and currently has no effect.)\n";
}

1;