....................................../////.===Shadow-Here===./////................................................ > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < ------------------------------------------------------------------------------------------------------------------- /////////////////////////////////////////////////////////////////////////////////////////////////////////////////// RIFF¤ WEBPVP8 ˜ ðÑ *ôô>‘HŸK¥¤"§£±¨àð enü¹%½_F‘åè¿2ºQú³íªú`N¿­3ÿƒügµJžaÿ¯ÿ°~¼ÎùnúîÞÖô•òíôÁÉß®Sm¥Ü/ ‡ó˜f£Ùà<˜„xëJ¢Ù€SO3x<ªÔ©4¿+ç¶A`q@Ì“Úñè™ÍÿJÌ´ª-˜ÆtÊÛL]Ïq*‘Ý”ì#ŸÌÏãY]@ê`¿ /ªfkØB4·®£ó z—Üw¥Pxù–ÞLШKÇN¾AkÙTf½è'‰g gÆv›Øuh~ a˜Z— ïj*á¥t d£“uÒ ¨`K˜¹ßþ]b>˜]_ÏÔ6W—è2r4x•íÖ…"ƒÖNîä!¦å Ú}ýxGøÌ —@ ;ÆÚŠ=ɾ1ý8lªË¥ô ^yf®Œ¢u&2©nÙÇ›ñÂñŒ³ aPo['½»øFùà­+4ê“$!lövlüÞ=;N®3ð‚õ›DÉKòÞ>ÄÍ ¥ˆuߤ#ˆ$6ù™¥îŠ‡y’ÍB¼ çxÛ;X"WL£R÷͝*ó-¶Zu}º.s¸sšXqù–DþÿvªhüïwyŸ ¯é³lÀ:KCûÄ£Ëá\…­ ~—ýóî ¼ûûÜTÓüÇy…ŽÆvc»¾×U ñ¸žþоP÷¦ó:Ò¨¨5;Ð#&#ÖúñläÿÁœ GxÉ­/ñ‡áQðìYÉtÒwŽ¼GÔ´zàÒò ð*ëzƒ•4~H]Ø‹f ñÓÈñ`NåWçs'ÆÏW^ø¹!XžµmQ5ÃËoLœÎ: ÞËÍ¥J ù…î èo£ßPÎñ¶ž8.Œ]ʵ~5›ÙË-ù*8ÙÖß±~ ©¹rÓê‚j¶d¸{^Q'˜±Crß ÚH—#¥¥QlÀ×ëã‡DÜ«èî þ&Çæžî;ŽÏºò6ÒLÃXy&ZŒ'j‚¢Ù€IßÚù+–MGi‰*jE€‘JcÜ ÓÌ EÏÚj]o˜ Þr <¾U ûŪæÍ/šÝH¥˜b”¼ ÁñßX GP›ï2›4WŠÏà×£…íÓk†¦H·ÅíMh–*nó÷à]ÁjCº€b7<ب‹¨5車bp2:Á[UªM„QŒçiNMa#<5›áËó¸HýÊ"…×Éw¹¦ì2º–x<›»a±¸3Weü®FÝ⑱ö–î–³|LPÈ~çð~Çå‡|º kD¢µÏàÆAI %1À% ¹Ò – ”ϝS¦‰4&¶£°à Öý”û_Ò Áw°A«Å€?mÇÛgHÉ/8)á¾ÛìáöŽP í¨PŸNÙµº¦‡§Ùš"ÿ«>+ªÕ`Ê÷‡‚ß Õû˜þãÇ-PÍ.¾XV‘€ dÜ"þ4¹ ±Oú‘©t¥¦FªÄÃÄ•b‚znýu½—#cDs˜ÃiÑOˆñ×QO=*IAÊ,¶ŽZƒ;‡wøXè%EÐk:F±Ú” .Ѽ+Áu&Ç`."pÈÉw o&¿dE6‘’EqTuK@Ì¥ã™À(Êk(h‰,H}RÀIXÛš3µ1©_OqÚÒJAñ$ÊÙÜ;D3çŒ[þùœh¬Ã³™ö6ç†NY".Ú‰ï[ªŸŒ '²Ð öø_¨ÂÉ9u鶳ÒŠõTàîMØ#û¯gN‡bÙ놚X„ö …ÉeüÌ^J ‹€.œ$Æ)βÄeæW#óüßĺŸ€ ÀzwV 9oä»f4V*uB «Ë†¹ì¯žR霓æHXa=&“I4K;¯ç‹h×·"UŠ~<•â•ªVêª&ÍSÃÆÅ?ÔqÎ*mTM ˜›µwêd#[C¡©§‘D<©àb†–ÁœøvH/,í:¯( ²£|4-„Æövv„Yͼ™^Á$ˆ„¢Û[6yB.åH*V¨æ?$=˜Ñ€•î¦ñ·­(VlŸ‘ nÀt8W÷´Bûba?q9ú¶Xƒl«ÿ\ù¶’þòUÐj/õ¢Ìµ³g$ƒÎR!¸»|Oߍë’BhîÚÑ¢ñåŒJ„®„£2Ð3•ô02Nt…!£Í]Ïc½Qÿ?ˆ<&ÃA¾Ú,JˆijÌ#5yz„‰Î|ÊŽ5QÏ:‹ÐaóVÔxW—CpeÏzÐïíçôÿÅ_[hãsÐ_/ŽTÝ?BîˆííV$<¿i>²F¬_Eß¿ †bÊŒº­ÿ®Z H“C}”¬,Mp ý/Bá£w>˜YV°aƒúh+cŠ- r/[%|üUMHäQ°X»|û/@|°¥Ð !BÔ Ç¢Ä©š+Õì D«7ìN¶ŽðÔ " ƶ’ÖçtA‰Û×}{tþz­¾GÍ›k¹OEJR$ Â׃ «ëÁ"oÉôž$oUK(Ä)Ãz³Ê-‹êN[Ò3Œñbï8P 4ƒ×q¢bo|?<ÛX¬òÄÍ°L–±›(™ûG?ýË©ÚÄ–ÂDØÐ_Ç¡ô ¾–ÄÏø ×e8Ë©$ÄF¹Å‹ì[©óìl:F¾f´‹‹Xì²ï®\¬ôùƒ ÿat¥óèÒùHß0äe‚;ü×h:ÆWðHž=Ã8骣"kœ'Y?³}Tûè€>?0l›e1Lòñ„aæKÆw…hÖŠùW…ÈÆÄ0ši·›[pcwËþñiêíY/~-Á5˜!¿†A›™Mÿþ(±“t@â“ö2­´TG5yé]çå僳 .·ÍïçÝ7UÚ±Ð/Nè»,_Ï ùdj7\ï Wì4›„»c¸àešg#ÒÊ⥭áØo5‘?ÌdÝô¯ ¹kzsƒ=´#ëÉK›Ø´±-¥eW?‡çßtòTã…$Ý+qÿ±ƒ÷_3Ô¥í÷:æ–ž<·Ö‡‰Å¢ š‡%Ô—utÌÈìðžgÖÀz²À—ï÷Óîäõ{K'´È÷³yaÏÁjƒô}ž§®æÊydÕÈë5¯èˆõvÕ©ã*çD„ “z„Ó‡^^xÂ3M§A´JG‚öï 3W'ˆ.OvXè¡ÊÕª?5º7†˜(˜Ç¶#çê’¶!ÌdZK§æ 0fãaN]òY³RV ™î$®K2R¨`W!1Ôó\;Ý ýB%qæK•&ÓÈe9È0êI±žeŸß -ú@žQr¦ ö4»M¼Áè¹µmw 9 EÆE_°2ó„ŸXKWÁ×Hóì^´²GѝF©óäR†¦‰ç"V»eØ<3ùd3ÿÚ¤Žú“Gi" —‘_ÙËÎ~Üö¯¥½Î»üŸEÚŽåmÞþí ;ÞólËΦMzA"Âf(´òá;Éï(/7½ûñÌ­cïÕçлþÝz¾-ÍvÑ“pH­–ðÓj$¸Äû¤‚‘ãUBË-n“2åPkS5&‹Â|+g^œ®Ì͆d!OïäîU«c;{Û!ÅŽ«ëZ9Ókóˆ]¯ƒ›né `ÇÒ+tÆš (ØKá¾—=3œ®•vuMñg²\ï Ec€ 05±d™‡×iÇ×›UúvÌ¢£Èþ¡ÕØô¶ßÎA"ß±#Ö²ˆÊŸ¦*Ä~ij|àø.-¼'»Ú¥£h ofº¦‡VsR=N½„Î v˜Z*SÌ{=jÑB‹tê…;’HžH¯8–îDù8ñ¢|Q•bÛçš–‹m³“ê¨ åÏ^m¬Žãþ©ïêO‡½6] µÆ„Ooòü ²x}N¦Ë3ïé¿»€›HA˜m%çÞ/¿í7Fø“‹léUk)É°Œµ8Q8›:ÀŠeT*šõ~ôڝG6 ¢}`ùH­–”¡k ‰P1>š†®9z11!X wKfmÁ¦xÑ,N1Q”–æB¶M…ÒÃv6SMˆhU¬ÊPŽï‘öj=·CŒ¯u¹ƒVIЃsx4’ömÛýc塶7ßŠß 57^\wÒÐÆ k§h,Œý î«q^R½3]J¸ÇðN ‚çU¬ôº^Áì} ³f©Õœ§ˆã:FÄÈ‚é(€™?àýÓüè1Gô£¼éj‚OÅñ  #>×—ßtà 0G¥Åa뀐kßhc™À_ÉñÞ#±)GD" YîäË-ÿÙ̪ ¹™a¯´¢E\ÝÒö‚;™„ë]_ p8‰o¡ñ+^÷ 3‘'dT4œŽ ðVë½° :¬víÑ«£tßÚS-3¶“þ2 †üüʨòrš¹M{É_¤`Û¨0ìjœøJ‡:÷ÃáZ˜†@GP&œÑDGÏs¡þ¦þDGú‘1Yá9Ôþ¼ ûø…§÷8&–ÜÑnÄ_m®^üÆ`;ÉVÁJ£?â€-ßê}suÍ2sõA NÌúA磸‘îÿÚ»ƒìö·á¿±tÑÐ"Tÿü˜[@/äj¬€uüªìù¥Ý˜á8Ý´sõj 8@rˆð äþZÇD®ÿUÏ2ùôõrBzÆÏÞž>Ì™xœ“ wiÎ×7_… ¸ \#€MɁV¶¥üÕÿPÔ9Z‡ø§É8#H:ƒ5ÀÝå9ÍIŒ5åKÙŠ÷qÄ>1AÈøžj"µÂд/ªnÀ qªã}"iŸBå˜ÓÛŽ¦…&ݧ;G@—³b¯“•"´4í¨ôM¨åñC‹ïùÉó¯ÓsSH2Ý@ßáM‡ˆKÀªÛUeø/4\gnm¥‹ŸŒ qÄ b9ÞwÒNÏ_4Ég³ú=܆‚´ •â¥õeíþkjz>éÚyU«Íӝ݃6"8/ø{=Ô¢»G¥ äUw°W«,ô—¿ãㆅү¢³xŠUû™yŒ (øSópÐ 9\åTâ»—*oG$/×ÍT†Y¿1¤Þ¢_‡ ¼ „±ÍçèSaÓ 3ÛMÁBkxs‰’R/¡¤ˆÙçª(*õ„üXÌ´ƒ E§´¬EF"Ù”R/ÐNyÆÂ^°?™6¡œïJ·±$§?º>ÖüœcNÌù¯G ‹ñ2ŠBB„^·úìaz¨k:#¨Æ¨8LÎõލ£^§S&cŒÐU€ü(‡F±Š¼&P>8ÙÁ ‰ p5?0ÊƃZl¸aô š¼¡}gÿ¶zÆC²¹¬ÎÖG*HB¡O<º2#ñŒAƒ–¡B˜´É$¥›É:FÀÔx¾u?XÜÏÓvN©RS{2ʈãk9rmP¼Qq̳ è¼ÐFׄ^¡Öì fE“F4A…!ì/…¦Lƒ… … $%´¾yã@CI¬ á—3PþBÏNÿ<ý°4Ü ËÃ#ØÍ~âW«rEñw‹eùMMHß²`¬Öó½íf³:‹k˜¯÷}Z!ã¿<¥,\#öµÀ¯aÒNÆIé,Ћ–lŽ#Àæ9ÀÒS·I’½-Ïp Äz¤Š Â* ­íÄ9­< h>׍3ZkËU¹§˜ŒŠ±f­’¤º³Q ÏB?‹#µíÃ¥®@(Gs«†vI¥Mµ‹Á©e~2ú³ÁP4ìÕi‚²Ê^ö@-DþÓàlÜOÍ]n"µã:žpsŽ¢:! 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Current File : /scripts/smtpmailgidonly
#!/usr/local/cpanel/3rdparty/bin/perl

# cpanel - scripts/smtpmailgidonly                 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 strict;
use warnings;

use Cpanel::Exim::Config::Ports ();
use Cpanel::Chkservd            ();
use Cpanel::PwCache             ();

my $version = '2.4';
my $action  = lc( ( grep( m/^-*(?:on|off|status|refresh|start|stop)$/i, @ARGV ) )[0] // '' ) || 0;
$action =~ s/^-*//g;
my $no_run_header = "$0 version $version - Copyright(C) 2020 cPanel, L.L.C.\nThis may be freely redistributed under the terms of the Artistic License.";

if ( !$action ) {
    print STDERR <<"EOM";
$no_run_header

    usage:  $0 <on|off|status|refresh|start|stop>

EOM
    exit 1;
}

my $cpaneluid  = ( Cpanel::PwCache::getpwnam('cpanel') )[2];
my $mailgid    = ( Cpanel::PwCache::getpwnam('mail') )[3];
my $mailmangid = ( Cpanel::PwCache::getpwnam('mailman') )[3];

my $exim_alt_port = Cpanel::Chkservd::geteximport(1);    #first arg allows fetch more then the first port
if ($exim_alt_port) {
    foreach my $port ( split( m/\s*\,\s*/, $exim_alt_port ) ) {
        $Cpanel::Exim::Config::Ports::LISTEN_PORTS{$port} = 1 if ( $port =~ /^[0-9]+$/ && $port < 65535 && $port > 0 );
    }
}

my @PORTS      = sort { $a <=> $b } keys %Cpanel::Exim::Config::Ports::LISTEN_PORTS;
my @RULE_TYPES = (
    { 'table' => 'nat', 'target' => 'RETURN', 'method' => '-I' },
    { 'table' => '',    'target' => 'ACCEPT', 'method' => '-I' }
);
my @RULES = (
    { 'type' => 'uid', 'value' => 0, 'name' => 'root' },    #aka root
    $cpaneluid  ? { 'type' => 'uid', 'value' => $cpaneluid, 'name' => 'cpanel', 'args' => [ '-d', '127.0.0.1' ] } : (),
    $mailgid    ? { 'type' => 'gid', 'value' => $mailgid,    'name' => 'mail' }    : (),
    $mailmangid ? { 'type' => 'gid', 'value' => $mailmangid, 'name' => 'mailman' } : ()
);

# for future expension
if ( -e '/var/cpanel/smtpmailgidonly/conf.yaml' ) {
    print "Loaded custom smtpmailgidonly/conf.yaml\n";
    require Cpanel::YAML::Syck;
    my $cfg = YAML::Syck::LoadFile('/var/cpanel/smtpmailgidonly/conf.yaml');
    push @PORTS, @{ $cfg->{'PORTS'} } if exists $cfg->{'PORTS'};
    push @RULES, @{ $cfg->{'RULES'} } if exists $cfg->{'RULES'};
}

require Cpanel::SafeRun::Errors;

my $enabled = -e '/var/cpanel/smtpgidonlytweak';

if ( $action eq 'status' ) {
    print "Protection is: " . ( $enabled ? 'on' : 'off' ) . "\n";
    exit 0;
}

if ( $action eq 'refresh' ) {
    $action = ( $enabled ? 'on' : 'off' );
    print "Refreshing SMTP Mail protection.\n";
}
remove_firewall_rules( $action =~ /^(?:start|stop)$/ );

if ( $action =~ /^(?:on|start)$/ ) {
    add_firewall_rules( $action eq 'start' );
    print "SMTP Mail protection has been enabled.\n";
    print "All outbound SMTP connections will be redirected to localhost except:\n";
    foreach my $rule (@RULES) {
        print "\t$rule->{'type'} is $rule->{'name'} (ports: " . join( ',', @PORTS ) . ")\n";
    }
}
else {
    print "SMTP Mail protection has been disabled.  All users may make outbound smtp connections.\n";
}

exit;

sub add_firewall_rules {
    my ($start_only) = @_;

    foreach my $type (@RULE_TYPES) {

        foreach my $rule (@RULES) {
            my $result = _iptables( ( $type->{'table'} ? ( '-t', $type->{'table'} ) : () ), $type->{'method'}, 'OUTPUT', '-p', 'tcp', ( ref $rule->{'args'} ? @{ $rule->{'args'} } : () ), '-m', 'multiport', '--dports', join( ',', @PORTS ), '-m', 'owner', '--' . $rule->{'type'} . '-owner', $rule->{'value'}, '-j', $type->{'target'} );
            if ( $result =~ m/(?:No\s+chain|target\s+problem|Unknown\s+error|cannot\s+open\s+shared\s+object\s+file)/i ) {
                remove_firewall_rules();
                print "SMTP Mail protection has been disabled.  All users may make smtp connections.\n";
                print "There was a problem setting up iptables.  You either have an older kernel or a broken iptables install, or ipt_owner could not be loaded.\n";
                exit 1;
            }
        }
    }
    _iptables( '-t', 'nat', '-A', 'OUTPUT', '-p', 'tcp', '-m', 'multiport', '--dports', join( ',', @PORTS ), '-j', 'REDIRECT' );

    return if $start_only;

    require Cpanel::Config::CpConfGuard;

    my $cpconf = Cpanel::Config::CpConfGuard->new();
    $cpconf->{data}->{smtpmailgidonly} = 1;
    $cpconf->save();

    require Cpanel::FileUtils::TouchFile;

    Cpanel::FileUtils::TouchFile::touchfile('/var/cpanel/smtpgidonlytweak');
}

sub remove_firewall_rules {
    my ($stop_only) = @_;

    debug("Removing old rules");
    if ( !-e '/etc/csf' ) {    #case 57565: removing these breaks outbound mail if csf has SMTP_BLOCK=1

        # Old method needs to be removed
        foreach my $rule (@RULES) {
            _iptables( '-D', 'OUTPUT', '--protocol', 'tcp', ( ref $rule->{'args'} ? @{ $rule->{'args'} } : () ), '--dport', '25', '-m', 'owner', '--' . $rule->{'type'} . '-owner', $rule->{'value'}, '-j', 'ACCEPT' );
        }
        _iptables( '-D', 'OUTPUT', '--protocol', 'tcp', '-d', '127.0.0.1', '--dport', '25', '-j', 'ACCEPT' );
        _iptables( '-D', 'OUTPUT', '--protocol', 'tcp', '--dport', '25', '-j', 'REJECT' );
    }
    debug("Removing new type rules");
    {

        # New Method
        foreach my $type (@RULE_TYPES) {

            foreach my $rule (@RULES) {
                _iptables( ( $type->{'table'} ? ( '-t', $type->{'table'} ) : () ), '-D', 'OUTPUT', '-p', 'tcp', ( ref $rule->{'args'} ? @{ $rule->{'args'} } : () ), '-m', 'multiport', '--dports', join( ',', @PORTS ), '-m', 'owner', '--' . $rule->{'type'} . '-owner', $rule->{'value'}, '-j', $type->{'target'} );

            }
        }
        _iptables( '-t', 'nat', '-D', 'OUTPUT', '-p', 'tcp', '-m', 'multiport', '--dports', join( ',', @PORTS ), '-j', 'REDIRECT' );

    }
    debug("Removing multiport rules matching 25...");
    {
        foreach my $type (@RULE_TYPES) {

            # Remove any remaining port 25 rules
            my %port_lists;
            foreach my $line ( split( /\n/, _iptables( ( $type->{'table'} ? ( '-t', $type->{'table'} ) : () ), '-L', '-n' ) ) ) {

                #RETURN     tcp  --  0.0.0.0/0            127.0.0.1           multiport dports 25,26,122,125,232,434,465,587,809,5454 OWNER UID match 32001
                if ( $line =~ m/multiport\s+dports\s+(25,[,0-9]+)\s+(?i:OWNER)\s+[UG]ID\s+match/ ) {
                    $port_lists{$1} = 1;
                }
            }
            foreach my $port_list ( keys %port_lists ) {
                foreach my $rule (@RULES) {
                    _iptables( ( $type->{'table'} ? ( '-t', $type->{'table'} ) : () ), '-D', 'OUTPUT', '-p', 'tcp', ( ref $rule->{'args'} ? @{ $rule->{'args'} } : () ), '-m', 'multiport', '--dports', $port_list, '-m', 'owner', '--' . $rule->{'type'} . '-owner', $rule->{'value'}, '-j', $type->{'target'} );

                }

                if ( $type->{'table'} && $type->{'table'} eq 'nat' ) {
                    _iptables( '-t', 'nat', '-D', 'OUTPUT', '-p', 'tcp', '-m', 'multiport', '--dports', $port_list, '-j', 'REDIRECT' );
                }
            }
        }
    }

    return if $stop_only;

    require Cpanel::Config::CpConfGuard;

    my $cpconf = Cpanel::Config::CpConfGuard->new();
    $cpconf->{data}->{smtpmailgidonly} = 0;
    $cpconf->save();

    unlink '/var/cpanel/smtpgidonlytweak';    # For WHM
}

sub debug {
    print "[$_[0]]\n" if $ENV{'CPANEL_DEBUG'};
}

sub _iptables {
    my @rule_content = @_;
    if ( -x '/sbin/ip6tables' ) {
        my @rule6_content = @rule_content;
        foreach my $part (@rule6_content) {
            $part =~ s/127\.0\.0\.1/\:\:1\/128/g;    # change local host to ipv6 equiv
        }
        debug( "EXEC: " . join( ' ', '/sbin/ip6tables', @rule6_content ) );
        my $result6 = Cpanel::SafeRun::Errors::saferunallerrors( '/sbin/ip6tables', @rule6_content ) . "\n";
        debug("EXEC RESULT: $result6");
    }

    debug( "EXEC: " . join( ' ', '/sbin/iptables', @rule_content ) );
    my $result = Cpanel::SafeRun::Errors::saferunallerrors( '/sbin/iptables', @rule_content ) . "\n";
    debug("EXEC RESULT: $result");
    return $result;
}

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