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

# cpanel - scripts/ipusage                         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::ipusage;

use strict;
use warnings;

use Cpanel::IP::Loopback            ();
use Cpanel::FtpUtils::Server        ();
use Cpanel::Sys::Hostname           ();
use Cpanel::SafeRun::Simple         ();
use Cpanel::PwCache                 ();
use Cpanel::Config::LoadWwwAcctConf ();
use Cpanel::ConfigFiles             ();
use Cpanel::Config::LoadUserDomains ();
use Cpanel::Config::userdata::Load  ();
use Cpanel::Config::userdata::Cache ();
use Cpanel::ConfigFiles::Apache     ();
use Cpanel::DIp::MainIP             ();
use Cpanel::DIp::Update             ();
use Cpanel::NAT                     ();

exit( __PACKAGE__->script( \@ARGV ) ) if not caller();

sub script {
    my $pkg = shift;
    print $pkg->get_ipusage();
    return 0;
}

sub get_ipusage {    ## no critic qw(Subroutines::ProhibitExcessComplexity)
    my $pkg        = shift;
    my $apacheconf = Cpanel::ConfigFiles::Apache->new();

    my $wwwacct_ref   = Cpanel::Config::LoadWwwAcctConf::loadwwwacctconf();
    my $ethdev        = $wwwacct_ref->{'ETHDEV'} || 'eth0';
    my $hostname      = Cpanel::Sys::Hostname::gethostname();
    my $using_proftpd = Cpanel::FtpUtils::Server::using_proftpd();
    my $proftpconf    = '/etc/proftpd.conf';
    my $httpconf      = $apacheconf->file_conf();
    my $ss            = '';
    my %ASN;
    my %PSN;
    my @MIPS;
    my @IPS;
    my $mainip;

    Cpanel::DIp::Update::update_dedicated_ips_and_dependencies_or_die();

    my $vhost_ipblock;
    my $in_vhost       = 0;
    my $in_proxy_vhost = 0;
    my $vhost_servername;

    my $userdata = Cpanel::Config::userdata::Cache::load_cache();

    for my $dns_name ( keys %$userdata ) {
        my ( $type, $ip, $ip_ssl ) = ( @{ $userdata->{$dns_name} } )[ 2, 5, 6 ];
        next unless ( $type eq 'main' || $type eq 'sub' );
        if ($ip) {
            $ip =~ s{:.*}{};    # trim port number
            $ASN{$ip}->{$dns_name} = 1;
        }
        if ($ip_ssl) {
            $ip_ssl =~ s{:.*}{};    # trim port number
            $ASN{$ip_ssl}->{$dns_name} = 1;
        }
    }

    my $nobody = Cpanel::Config::userdata::Load::load_userdata_main('nobody');
    if ( $nobody && $nobody->{'main_domain'} ) {
        my $ip = Cpanel::DIp::MainIP::getmainserverip();
        $ASN{$ip}->{ $nobody->{'main_domain'} } = 1 if $ip;
    }

    while ( my ( $ip, $vh_set ) = each %ASN ) {
        $ASN{$ip} = [ sort keys %$vh_set ];
    }

    $in_vhost = 0;
    if ($using_proftpd) {
        my $ok = open my $PROCONF, q{<}, $proftpconf;
        while ( my $line = <$PROCONF> ) {
            if ( $line =~ /^\s*<virtualhost\s*(\S.*?)\s*>\s*$/i ) {
                $vhost_ipblock = $1;
                $in_vhost      = 1;
            }
            elsif ( $line =~ /^\s*\<\/virtualhost/i ) {
                $in_vhost = 0;
            }
            elsif ( $in_vhost == 1 && $line =~ /^\s*servername\s*(\S+)/i ) {
                $vhost_servername = $1;
                foreach my $vhost_ip ( split( /\s+/, $vhost_ipblock ) ) {
                    $vhost_ip =~ s/:\S+$//;
                    $PSN{$vhost_ip} .= ",$vhost_servername";
                }
            }
        }
        close $PROCONF;
    }
    elsif ( -d '/etc/pure-ftpd' ) {
        if ( opendir my $pureftpd_dh, '/etc/pure-ftpd' ) {
            my $true_userdomains = Cpanel::Config::LoadUserDomains::loadtrueuserdomains( {}, 1 );
            while ( my $file = readdir $pureftpd_dh ) {
                next if $file !~ m/^\d+\.\d+\.\d+\.\d+$/;
                if ( -l '/etc/pure-ftpd/' . $file && -e '/etc/pure-ftpd/' . $file ) {
                    my $owner_uid = ( stat(_) )[4];
                    my $user      = Cpanel::PwCache::getpwuid($owner_uid);
                    if ( $true_userdomains->{$user} ) {
                        $PSN{$file} = 'ftp.' . $true_userdomains->{$user};
                    }
                }
            }
            closedir $pureftpd_dh;
        }
    }

    @MIPS = split( /\n/, Cpanel::SafeRun::Simple::saferun( '/sbin/ip', '-4', 'addr', 'show', $ethdev ) );

    foreach my $ipx (@MIPS) {
        if ( $ipx =~ /(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}).+\s+$ethdev$/ ) {
            $mainip = $1;
            last;
        }
    }

    {

        # Since we'll be grep'ing for a particular English language string, we make
        # sure ifconfig will spout its output in that (default) language.
        local $ENV{LANG} = 'C';

        @IPS = grep( qr/inet addr/, split( /\n/, Cpanel::SafeRun::Simple::saferun( '/sbin/ip', '-4', 'addr', 'show' ) ) );
    }

    my $whm50 = defined $ENV{"WHM50"} && $ENV{"WHM50"} ne '';

    my $output = q{};
    if ($whm50) {
        $output .= q{
<script type="text/javascript" src="/js/sorttable.js"></script>

<table border=1 class=sortable id=ipusage>
<tr class=cellheader>

<th><b>IP Address</b></th>
<th nonsortable=true><b>Http Usage</b></th>
<th nonsortable=true><b>Ftp Usage</b></th>
<th nonsortable=true><b>Mail Usage</b></th>

</tr>};
    }

    foreach my $ip (@IPS) {
        next if ( $ip !~ /\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}/ );
        $ip =~ m/(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}){1}/;
        if ( !Cpanel::IP::Loopback::is_loopback($1) ) {
            $ip = $1;
            $PSN{$ip} = '' if ( !defined $PSN{$ip} );
            $PSN{$ip} =~ s/^\,//g;
            $output .= '<tr><td>' if $whm50;
            $output .= Cpanel::NAT::get_public_ip($ip) . " ";
            $output .= '</td><td>' if $whm50;
            my @adomains = exists $ASN{$ip} ? @{ $ASN{$ip} } : ();
            my $sdomains = join ',', @adomains;

            if ( exists $ASN{$ip} ) {
                if ( !$whm50 ) {
                    $output .= "[http: $sdomains] ";
                }
                else {
                    $output .= "$_ " for @adomains;
                }
                $ss .= "${ip}_http=$sdomains\n";
            }

            $output .= '</td><td>' if $whm50;

            if ( $PSN{$ip} ne '' ) {
                if ( !$whm50 ) {
                    $output .= "[ftp: $PSN{$ip}] ";
                }
                else {
                    $output .= "$PSN{$ip} ";
                }
                $ss .= "${ip}_ftp=$PSN{$ip}\n";
            }

            $output .= '</td><td>' if $whm50;

            my $mailstuff = '';
            foreach my $dom (@adomains) {
                $dom =~ s/^www\.//g;
                if ( -e "$Cpanel::ConfigFiles::VALIASES_DIR/$dom" ) {
                    my $dcount = 0;
                    my $ok     = open my $DOM, '<', "$Cpanel::ConfigFiles::VALIASES_DIR/$dom";
                    while (<$DOM>) { $dcount++; }
                    close $DOM;
                    if ( $dcount > 0 ) {
                        $mailstuff = $mailstuff . "$dom($dcount accts) ";
                    }
                }
            }

            if ( $mailstuff ne '' ) {
                $ss = $ss . "${ip}_mail=$mailstuff\n";
                if ( !$whm50 ) {
                    $output .= "[mail: $mailstuff] ";
                }
                else {
                    $output .= "$mailstuff ";
                }
            }
            $output .= '</td></tr>' if $whm50;
            $output .= "\n";
        }
    }

    $output .= '</table>' if $whm50;
    return $output;
}

1;