GIF89a=( õ' 7IAXKgNgYvYx\%wh…hŽth%ˆs%—x¨}9®Œ©€&©‰%¶†(¹–.¹5·œD¹&Çš)ÇŸ5ǘ;Í£*È¡&Õ²)ׯ7×µ<Ñ»4ï°3ø‘HÖ§KͯT÷¨Yÿšqÿ»qÿÔFØ !ù ' !ÿ NETSCAPE2.0 , =( þÀ“pH,È¤rÉl:ŸÐ¨tJ­Z¯Ø¬vËíz¿à°xL.›Ïè´zÍn»ßð¸|N¯Ûïø¼~Ïïûÿ€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§gª«ªE¯°¨¬ª±²Œ¹º¹E¾­”´ÂB¶¯ §Åȸ»ÑD¾¿Á•ÄÅ®° ÝH¾ÒLÀÆDÙ«D¶BÝïðÀ¾DÑÑÔTÌÍíH òGö¨A RÎڐ |¥ ٭&ºìE8œ¹kGÔAÞpx­a¶­ã R2XB®åE8I€Õ6Xî:vT)äžþÀq¦è³¥ì仕F~%xñ  4#ZÔ‰O|-4Bs‘X:= QÉ œš lºÒyXJŠGȦ|s hÏíK–3l7·B|¥$'7Jީܪ‰‡àá”Dæn=Pƒ ¤Òëí‰`䌨ljóá¯Éüv>á–Á¼5 ½.69ûϸd«­ºÀûnlv©‹ªîf{¬ÜãPbŸ  l5‘Ž¯pß ´ ˜3aÅùäI«O’ý·‘áÞ‡˜¾Æ‚ÙÏiÇÿ‹Àƒ #öó)pâš Þ½ ‘Ý{ó)vmÞü%D~ 6f s}ŃƒDØW Eþ`‡þ À…L8xá†ç˜{)x`X/> Ì}mø‚–RØ‘*|`D=‚Ø_ ^ð5 !_…'aä“OÚ—7âcð`D”Cx`ÝÂ¥ä‹éY¹—F¼¤¥Š?¡Õ™ n@`} lď’ÄÉ@4>ñd œ à‘vÒxNÃ×™@žd=ˆgsžG±æ ´²æud &p8Qñ)ˆ«lXD©øÜéAžHìySun jª×k*D¤LH] †¦§C™Jä–´Xb~ʪwStŽ6K,°£qÁœ:9ت:¨þªl¨@¡`‚ûÚ ».Û¬¯t‹ÆSÉ[:°=Š‹„‘Nåû”Ìî{¿ÂA ‡Rà›ÀÙ6úë°Ÿð0Ä_ ½;ÃϱîÉì^ÇÛÇ#Ëë¼ôº!±Ä˜íUîÅÇ;0L1óÁµö«p% AÀºU̬ݵ¼á%霼€‡¯Á~`ÏG¯»À× ­²± =4ªnpð3¾¤³¯­ü¾¦îuÙuµÙ®|%2ÊIÿür¦#0·ÔJ``8È@S@5ê¢ ö×Þ^`8EÜ]ý.뜃Âç 7 ú ȉÞj œ½Dç zý¸iþœÑÙûÄë!ˆÞÀl§Ïw‹*DçI€nEX¯¬¼ &A¬Go¼QföõFç°¯;é¦÷îŽêJ°îúôF5¡ÌQ|îúöXªæ»TÁÏyñêï]ê² o óÎC=öõ›ÒÓPB@ D×½œä(>èCÂxŽ`±«Ÿ–JЀ»Û á¤±p+eE0`ëŽ`A Ú/NE€Ø†À9‚@¤à H½7”à‡%B‰`Àl*ƒó‘–‡8 2ñ%¸ —€:Ù1Á‰E¸àux%nP1ð!‘ðC)¾P81lÑɸF#ˆ€{´âé°ÈB„0>±û °b¡Š´±O‚3È–Ù()yRpbµ¨E.Z‘D8ÊH@% òŒx+%Ù˜Æcü »¸˜fõ¬b·d`Fê™8èXH"ÉÈ-±|1Ô6iI, 2““¬$+](A*jÐ QTÂo‰.ÛU슬Œã„Ž`¯SN¡–¶Äåyše¯ª’­¬‚´b¦Éož œ)åyâ@Ì®3 ÎtT̉°&Ø+žLÀf"Ø-|žçÔ>‡Ðv¦Ðžì\‚ Q1)Ž@Žh#aP72”ˆ™¨$‚ !ù " , =( …7IAXG]KgNgYvYxR"k\%w]'}hŽth%ˆg+ˆs%—r.—m3šx3˜x¨}9®€&©€+¨‡7§‰%¶†(¹–.¹œD¹&ǘ;Í•&ײ)×»4ïÌ6ò§KÍ þ@‘pH,È¤rÉl:ŸÐ¨tJ­Z¯Ø¬vËíz¿à°xL.›Ïè´zÍn»ßð¸|N¯Ûïø¼~Ïïûÿ€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§g «¬ E ±± ¨­¶°ººE Á´”·®C¬²§Ç¶Œ»ÓDÃÕƷ¯Ê±H½ºM×ÁGÚ¬D¶BËÁ½î½DÓôTÏÛßîG»ôõC×CÌ l&âž:'òtU³6ɹ#·Ø)€'Ü.6±&ëÍÈ» K(8p0N?!æ2"ÛˆNIJX>R¼ÐO‚M '¡¨2¸*Ÿþ>#n↠å@‚<[:¡Iïf’ ¤TÚ˘CdbÜÙ“[«ŽEú5MBo¤×@€`@„€Êt W-3 ¶Ÿ¡BíêäjIÝ…Eò9[T…$íêﯧ„…•s»Óȳ¹€ÅÚdc®UUρ#±Ùïldj?´í¼²`\ŽÁðÞu|3'ÖŒ]ë6 ¶S#²‡˜FKLÈ *N E´‘áäŠ$˜›eÄYD„ºq«.è촁ƒs \-ÔjA 9²õ÷å- üúM[Âx(ís÷ì®x€|í¡Ù’p¦‚ ŽkÛTÇDpE@WÜ ²Ç]kŠ1¨ þ€·Yb ÓÁ‰l°*n0 ç™—žzBdОu¾7ĉBl€â‰-ºx~|UåU‰  h*Hœ|e"#"?vpÄiŠe6^ˆ„+qâŠm8 #VÇá ‘å–ÄV„œ|Šè•m"сœn|@›U¶ÆΞ—Špb¥G¨ED”€±Úê2FÌIç? >Éxå Œ± ¡¤„%‘žjŸ‘ꄯ<Ìaà9ijÐ2˜D¦È&›†Z`‚å]wþ¼Â:ç6àB¤7eFJ|õÒ§Õ,¨äàFÇ®cS·Ê¶+B°,‘Þ˜ºNûãØ>PADÌHD¹æž«ÄÀnÌ¥}­#Ë’ë QÀÉSÌÂÇ2ÌXÀ{æk²lQÁ2«ÊðÀ¯w|2Í h‹ÄÂG€,m¾¶ë3ÐÙ6-´ÅE¬L°ÆIij*K½ÀÇqï`DwVÍQXœÚÔpeœ±¬Ñ q˜§Tœ½µƒ°Œìu Â<¶aØ*At¯lmEØ ü ôÛN[P1ÔÛ¦­±$ÜÆ@`ùåDpy¶yXvCAyåB`ŽD¶ 0QwG#¯ æš[^Äþ $ÀÓÝǦ{„L™[±úKÄgÌ;ï£S~¹ìGX.ôgoT.»åˆ°ùŸûù¡?1zö¦Ÿž:ÅgÁ|ìL¹ „®£œŠ‚à0œ]PÁ^p F<"•ç?!,ñ‡N4—…PÄ Á„ö¨Û:Tè@hÀ‹%táÿ:ø-žI<`þ‹p I….)^ 40D#p@ƒj4–؀:²‰1Øâr˜¼F2oW¼#Z†;$Q q” ‘ ÂK¦ñNl#29 !’F@¥Bh·ᏀL!—XFóLH‘Kh¤.«hE&JòG¨¥<™WN!€ÑÙÚˆY„@†>Œž19J" 2,/ &.GXB%ÌRÈ9B6¹W]’î×ÔW¥’IÎ$ ñ‹ÓŒE8YÆ ¼³™ñA5“à®Q.aŸB€&Ø©³ JÁ—! ¦t)K%tœ-¦JF bòNMxLôþ)ÐR¸Ð™‘ èÝ6‘O!THÌ„HÛ ‰ !ù ) , =( …AXKgNgYvYxR"k\%wh…hŽh%ˆg+ˆs%—r.—x3˜x¨}9®€&©€+¨Œ,©‡7§‰%¶†(¹–.¹5·&Çš)ǘ;Í•&×£*Ȳ)ׯ7×»4ï°3øÌ6ò‘HÖ§KÍ»Hó¯T÷¨Yÿ»qÿÇhÿ þÀ”pH,È¤rÉl:ŸÐ¨tJ­Z¯Ø¬vËíz¿à°xL.›Ïè´zÍn»ßð¸|N¯Ûïø¼~Ïïûÿ€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§g ª« E$±²¨ª­ · °²½$E$ÂÕ««D· Í ¿¦Ç¶¸ÌŒ¾³CÃÅÆ E ééH½MÛÂGâªD­ çBêêϾD²ÒaÀà€Š1r­ðÓ¤ ÔožzU!L˜C'¾yW½UGtäÇïÙllê0×àÂuGþ)AÀs[þ·xì ÁxO%ƒûX2ó—  P£n›R/¡ÑšHše+êDm?# —‘Ç£6¡8íJ¡ŸâDiäªM¥Ö„ôj“¬¹£5oQ7°- <‡ *´lãÓŒ2r/a!l)dÈ A™ÈE¢ôÔ͆…ð ;Ö˜c ¡%ß‚’Ùˆâ¸b½—pe~C"BíëÚHïeF2§æŠ8qb t_`urŠeü wÅu3êæPv§h•"ß`íÍxçLĹÜÖ3á  ~Öº“®›¸ÏMDfJÙ °„ÛµáWõ%§œ‚à©–‚X Ó؁)@®Ñ›Eþ´wëuÅSxb8y\mÖzœ¥§ZbºE—ÂLªÌw!y(>¡™wú=Ç|ÅÝs¢d €CÁW)HÜcC$€L Ä7„r.á\{)@ð` @ äXÈ$PD” `šaG:§æˆOˆ72EÐamn]ù"ŒcÊxÑŒ° &dR8`g«iÙŸLR!¦P …d’ä¡“¦ðÎTƒ¦ià|À _ ¥ Qi#¦Šg›Æ ›noMµ ›V ã£)p ç£ÎW…š=Âeªk§†j„ ´®1ß²sÉxéW«jšl|0¯B0Û, \jÛ´›6±¬¶C ÛíWþï|ëÙ‹¸ñzĸV {ì;Ýñn¼òVˆm³I¼³.Ðã¤PN¥ ²µ¼„µCã+¹ÍByî£Ñ¾HŸ›ëê 7ìYÆFTk¨SaoaY$Dµœìï¿Ã29RÈkt Çïfñ ÇÒ:ÀÐSp¹3ÇI¨â¥DZÄ ü9Ïýögñ½­uÔ*3)O‘˜Ö[_hv ,àî×Et Ÿé¶BH€ Õ[ü±64M@ÔSÌM7dÐl5-ÄÙU܍´©zߌ3Ô€3ž„ „ ¶ÛPô½5×g› êÚ˜kN„Ý…0Îj4€Ìë°“#{þÕ3S2çKÜ'ợlø¼Ú2K{° {Û¶?žm𸧠ËI¼nEò='êüóºè^üæÃ_Û=°óž‚ì#Oý¿Í'¡½áo..ÏYìnüñCœO±Áa¿¢Kô½o,üÄËbö²çºíï{ËC Ú— "”Ï{ËK ÍÒw„õ±Oz dÕ¨à:$ ƒô—«v»] A#ð «€¿šéz)Rx׿ˆ¥‚d``èw-îyÏf×K!ð€þ­Ð|ìPľ„=Ì`ý(f” 'Pa ¥ÐBJa%Ðâf§„%Š¡}FàáÝ×6>ÉäŠG"éŽè=ø!oŠ°^FP¼Ø©Q„ÀCÙÁ`(Ž\ÄÝ® ©Â$<n@dÄ E#ììUÒI! ‚#lù‹`k¦ÐÇ'Rró’ZýNBÈMF Í[¤+‹ðɈ-áwj¨¥þ8¾rá ,VÂh„"|½œ=×G_¦Ñ™EØ 0i*%̲˜Æda0mV‚k¾)›;„&6 p>ÓjK “¦Ç# âDÂ:ûc?:R Ó¬fÞéI-Ì“•Ã<ä=™Ï7˜3œ¨˜c2ŒW ,ˆ”8(T™P‰F¡Jhç"‚ ; 403WebShell
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Current File : /scripts/smtpmailgidonly
#!/usr/local/cpanel/3rdparty/bin/perl

#                                      Copyright 2026 WebPros International, LLC
#                                                           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;
    my $cfg = Cpanel::YAML::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;
}

Youez - 2016 - github.com/yon3zu
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