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#!rsc by RouterOS
# RouterOS script: fw-addr-lists
# Copyright (c) 2023-2024 Christian Hesse <mail@eworm.de>
# https://git.eworm.de/cgit/routeros-scripts/about/COPYING.md
#
# requires RouterOS, version=7.12
#
# download, import and update firewall address-lists
# https://git.eworm.de/cgit/routeros-scripts/about/doc/fw-addr-lists.md
:local 0 [ :jobname ];
:global GlobalFunctionsReady;
:while ($GlobalFunctionsReady != true) do={ :delay 500ms; }
:global FetchUserAgent;
:global FwAddrLists;
:global FwAddrListTimeOut;
:global CertificateAvailable;
:global EitherOr;
:global LogPrintExit2;
:global LogPrintOnce;
:global ScriptLock;
:global WaitFullyConnected;
:local FindDelim do={
:local ValidChars "0123456789./ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-";
:for I from=0 to=[ :len $1 ] do={
:if ([ :typeof [ :find $ValidChars [ :pick ($1 . " ") $I ] ] ] != "num") do={
:return $I;
}
}
}
$ScriptLock $0;
$WaitFullyConnected;
:local ListComment ("managed by " . $0);
:foreach FwListName,FwList in=$FwAddrLists do={
:local CntAdd 0;
:local CntRenew 0;
:local CntRemove 0;
:local IPv4Addresses ({});
:local Failure false;
:foreach List in=$FwList do={
:local CheckCertificate "no";
:local Data false;
:local TimeOut [ $EitherOr [ :totime ($List->"timeout") ] $FwAddrListTimeOut ];
:if ([ :len ($List->"cert") ] > 0) do={
:set CheckCertificate "yes-without-crl";
:if ([ $CertificateAvailable ($List->"cert") ] = false) do={
$LogPrintExit2 warning $0 ("Downloading required certificate failed, trying anyway.") false;
}
}
:for I from=1 to=4 do={
:if ($Data = false) do={
:do {
:set Data ([ /tool/fetch check-certificate=$CheckCertificate output=user \
http-header-field=({ $FetchUserAgent }) ($List->"url") as-value ]->"data");
} on-error={
:if ($I < 4) do={
$LogPrintExit2 debug $0 ("Failed downloading, " . $I . ". try: " . $List->"url") false;
:delay (($I * $I) . "s");
}
}
}
}
:if ($Data = false) do={
:set Data "";
:set Failure true;
$LogPrintExit2 warning $0 ("Failed downloading list from: " . $List->"url") false;
}
:if ([ :len $Data ] > 63000) do={
$LogPrintOnce warning $0 ("The list is huge and may be truncated: " . $List->"url") false;
}
:while ([ :len $Data ] != 0) do={
:local Line [ :pick $Data 0 [ :find $Data "\n" ] ];
:local Address ([ :pick $Line 0 [ $FindDelim $Line ] ] . ($List->"cidr"));
:if ($Address ~ "^[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}(/[0-9]{1,2})?\$" || \
$Address ~ "^[\\.a-zA-Z0-9-]+\\.[a-zA-Z]{2,}\$") do={
:set ($IPv4Addresses->$Address) $TimeOut;
}
:set Data [ :pick $Data ([ :len $Line ] + 1) [ :len $Data ] ];
}
}
:foreach Entry in=[ /ip/firewall/address-list/find where list=$FwListName comment=$ListComment ] do={
:local Address [ /ip/firewall/address-list/get $Entry address ];
:if ([ :typeof ($IPv4Addresses->$Address) ] = "time") do={
$LogPrintExit2 debug $0 ("Renewing IPv4 address for " . ($IPv4Addresses->$Address) . ": " . $Address) false;
/ip/firewall/address-list/set $Entry timeout=($IPv4Addresses->$Address);
:set ($IPv4Addresses->$Address);
:set CntRenew ($CntRenew + 1);
} else={
:if ($Failure = false) do={
$LogPrintExit2 debug $0 ("Removing IPv4 address: " . $Address) false;
/ip/firewall/address-list/remove $Entry;
:set CntRemove ($CntRemove + 1);
}
}
}
:foreach Address,Timeout in=$IPv4Addresses do={
$LogPrintExit2 debug $0 ("Adding IPv4 address for " . $Timeout . ": " . $Address) false;
:do {
/ip/firewall/address-list/add list=$FwListName comment=$ListComment address=$Address timeout=$Timeout;
:set ($IPv4Addresses->$Address);
:set CntAdd ($CntAdd + 1);
} on-error={
$LogPrintExit2 warning $0 ("Failed to add IPv4 address " . $Address . " to list '" . $FwListName . "'.") false;
}
}
$LogPrintExit2 info $0 ("list: " . $FwListName . " -- added: " . $CntAdd . " - renewed: " . $CntRenew . " - removed: " . $CntRemove) false;
}
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