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global-functions.rsc
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global-functions.rsc
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#!rsc by RouterOS
# RouterOS script: global-functions
# Copyright (c) 2013-2024 Christian Hesse <mail@eworm.de>
# Michael Gisbers <michael@gisbers.de>
# https://git.eworm.de/cgit/routeros-scripts/about/COPYING.md
#
# requires RouterOS, version=7.14
#
# global functions
# https://git.eworm.de/cgit/routeros-scripts/about/
:local ScriptName [ :jobname ];
# expected configuration version
:global ExpectedConfigVersion 131;
# global variables not to be changed by user
:global GlobalFunctionsReady false;
:global Identity [ /system/identity/get name ];
# global functions
:global AlignRight;
:global CertificateAvailable;
:global CertificateDownload;
:global CertificateNameByCN;
:global CharacterMultiply;
:global CharacterReplace;
:global CleanFilePath;
:global CleanName;
:global DeviceInfo;
:global Dos2Unix;
:global DownloadPackage;
:global EitherOr;
:global EscapeForRegEx;
:global FetchHuge;
:global FetchUserAgentStr;
:global FormatLine;
:global FormatMultiLines;
:global GetMacVendor;
:global GetRandom20CharAlNum;
:global GetRandom20CharHex;
:global GetRandomNumber;
:global Grep;
:global HexToNum;
:global HumanReadableNum;
:global IfThenElse;
:global IsDefaultRouteReachable;
:global IsDNSResolving;
:global IsFullyConnected;
:global IsMacLocallyAdministered;
:global IsTimeSync;
:global LogPrint;
:global LogPrintOnce;
:global MAX;
:global MIN;
:global MkDir;
:global NotificationFunctions;
:global ParseDate;
:global ParseKeyValueStore;
:global PrettyPrint;
:global ProtocolStrip;
:global RandomDelay;
:global RequiredRouterOS;
:global ScriptFromTerminal;
:global ScriptInstallUpdate;
:global ScriptLock;
:global SendNotification;
:global SendNotification2;
:global SymbolByUnicodeName;
:global SymbolForNotification;
:global Unix2Dos;
:global UrlEncode;
:global ValidateSyntax;
:global VersionToNum;
:global WaitDefaultRouteReachable;
:global WaitDNSResolving;
:global WaitForFile;
:global WaitFullyConnected;
:global WaitTimeSync;
# align string to the right
:set AlignRight do={
:local Input [ :tostr $1 ];
:local Len [ :tonum $2 ];
:global CharacterMultiply;
:global EitherOr;
:set Len [ $EitherOr $Len 8 ];
:local Spaces [ $CharacterMultiply " " $Len ];
:return ([ :pick $Spaces 0 ($Len - [ :len $Input ]) ] . $Input);
}
# check and download required certificate
:set CertificateAvailable do={
:local CommonName [ :tostr $1 ];
:global CertificateDownload;
:global LogPrint;
:global ParseKeyValueStore;
:if ([ /system/resource/get free-hdd-space ] < 8388608 && \
[ /certificate/settings/get crl-download ] = true && \
[ /certificate/settings/get crl-store ] = "system") do={
$LogPrint warning $0 ("This system has low free flash space but " . \
"is configured to download certificate CRLs to system!");
}
:if ([ :len [ /certificate/find where common-name=$CommonName ] ] = 0) do={
$LogPrint info $0 ("Certificate with CommonName '" . $CommonName . "' not available.");
:if ([ $CertificateDownload $CommonName ] = false) do={
:return false;
}
}
:local CertVal [ /certificate/get [ find where common-name=$CommonName ] ];
:while (($CertVal->"akid") != "" && ($CertVal->"akid") != ($CertVal->"skid")) do={
:if ([ :len [ /certificate/find where skid=($CertVal->"akid") ] ] = 0) do={
$LogPrint info $0 ("Certificate chain for '" . $CommonName . \
"' is incomplete, missing '" . ([ $ParseKeyValueStore ($CertVal->"issuer") ]->"CN") . "'.");
:if ([ $CertificateDownload $CommonName ] = false) do={
:return false;
}
}
:set CertVal [ /certificate/get [ find where skid=($CertVal->"akid") ] ];
}
:return true;
}
# download and import certificate
:set CertificateDownload do={
:local CommonName [ :tostr $1 ];
:global ScriptUpdatesBaseUrl;
:global ScriptUpdatesUrlSuffix;
:global CertificateAvailable;
:global CertificateNameByCN;
:global CleanName;
:global FetchUserAgentStr;
:global LogPrint;
:global WaitForFile;
$LogPrint info $0 ("Downloading and importing certificate with " . \
"CommonName '" . $CommonName . "'.");
:local FileName ([ $CleanName $CommonName ] . ".pem");
:do {
/tool/fetch check-certificate=yes-without-crl http-header-field=({ [ $FetchUserAgentStr $0 ] }) \
($ScriptUpdatesBaseUrl . "certs/" . $FileName . $ScriptUpdatesUrlSuffix) \
dst-path=$FileName as-value;
$WaitForFile $FileName;
} on-error={
$LogPrint warning $0 ("Failed downloading certificate with CommonName '" . $CommonName . \
"' from repository! Trying fallback to mkcert.org...");
:do {
:if ([ $CertificateAvailable "ISRG Root X1" ] = false) do={
$LogPrint error $0 ("Downloading required certificate failed.");
:return false;
}
/tool/fetch check-certificate=yes-without-crl http-header-field=({ [ $FetchUserAgentStr $0 ] }) \
"https://mkcert.org/generate/" http-data=[ :serialize to=json ({ $CommonName }) ] \
dst-path=$FileName as-value;
$WaitForFile $FileName;
:if ([ /file/get $FileName size ] = 0) do={
/file/remove $FileName;
:error false;
}
} on-error={
$LogPrint warning $0 ("Failed downloading certificate with CommonName '" . $CommonName . "'!");
:return false;
}
}
/certificate/import file-name=$FileName passphrase="" as-value;
:delay 1s;
/file/remove [ find where name=$FileName ];
:foreach Cert in=[ /certificate/find where name~("^" . $FileName . "_[0-9]+\$") ] do={
$CertificateNameByCN [ /certificate/get $Cert common-name ];
}
:return true;
}
# name a certificate by its common-name
:set CertificateNameByCN do={
:local CommonName [ :tostr $1 ];
:global CleanName;
:local Cert [ /certificate/find where common-name=$CommonName ];
/certificate/set $Cert name=[ $CleanName $CommonName ];
}
# multiply given character(s)
:set CharacterMultiply do={
:local Return "";
:for I from=1 to=$2 do={
:set Return ($Return . $1);
}
:return $Return;
}
# character replace
:set CharacterReplace do={
:local String [ :tostr $1 ];
:local ReplaceFrom [ :tostr $2 ];
:local ReplaceWith [ :tostr $3 ];
:local Return "";
:if ($ReplaceFrom = "") do={
:return $String;
}
:while ([ :typeof [ :find $String $ReplaceFrom ] ] != "nil") do={
:local Pos [ :find $String $ReplaceFrom ];
:set Return ($Return . [ :pick $String 0 $Pos ] . $ReplaceWith);
:set String [ :pick $String ($Pos + [ :len $ReplaceFrom ]) [ :len $String ] ];
}
:return ($Return . $String);
}
# clean file path
:set CleanFilePath do={
:local Path [ :tostr $1 ];
:global CharacterReplace;
:while ($Path ~ "//") do={
:set $Path [ $CharacterReplace $Path "//" "/" ];
}
:if ([ :pick $Path 0 ] = "/") do={
:set Path [ :pick $Path 1 [ :len $Path ] ];
}
:if ([ :pick $Path ([ :len $Path ] - 1) ] = "/") do={
:set Path [ :pick $Path 0 ([ :len $Path ] - 1) ];
}
:return $Path;
}
# clean name for DNS, file and more
:set CleanName do={
:local Input [ :tostr $1 ];
:local Return "";
:for I from=0 to=([ :len $Input ] - 1) do={
:local Char [ :pick $Input $I ];
:if ([ :typeof [ find "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789" $Char ] ] = "nil") do={
:do {
:if ([ :len $Return ] = 0) do={
:error true;
}
:if ([ :pick $Return ([ :len $Return ] - 1) ] = "-") do={
:error true;
}
:set Char "-";
} on-error={
:set Char "";
}
}
:set Return ($Return . $Char);
}
:return $Return;
}
# get readable device info
:set DeviceInfo do={
:global ExpectedConfigVersion;
:global Identity;
:global IfThenElse;
:global FormatLine;
:local License [ /system/license/get ];
:local Resource [ /system/resource/get ];
:local RouterBoard;
:do {
:set RouterBoard [[ :parse "/system/routerboard/get" ]];
} on-error={ }
:local Snmp [ /snmp/get ];
:local Update [ /system/package/update/get ];
:return ( \
[ $FormatLine "Hostname" $Identity ] . "\n" . \
[ $IfThenElse ([ :len ($Snmp->"location") ] > 0) \
([ $FormatLine "Location" ($Snmp->"location") ] . "\n") ] . \
[ $IfThenElse ([ :len ($Snmp->"contact") ] > 0) \
([ $FormatLine "Contact" ($Snmp->"contact") ] . "\n") ] . \
[ $FormatLine "Board name" ($Resource->"board-name") ] . "\n" . \
[ $FormatLine "Architecture" ($Resource->"architecture-name") ] . "\n" . \
[ $IfThenElse ($RouterBoard->"routerboard" = true) \
([ $FormatLine "Model" ($RouterBoard->"model") ] . \
[ $IfThenElse ([ :len ($RouterBoard->"revision") ] > 0) \
(" " . $RouterBoard->"revision") ] . "\n" . \
[ $FormatLine "Serial number" ($RouterBoard->"serial-number") ] . "\n") ] . \
[ $IfThenElse ([ :len ($License->"level") ] > 0) \
([ $FormatLine "License" ($License->"level") ] . "\n") ] . \
"RouterOS:\n" . \
[ $FormatLine " Channel" ($Update->"channel") ] . "\n" . \
[ $FormatLine " Installed" ($Update->"installed-version") ] . "\n" . \
[ $IfThenElse ([ :typeof ($Update->"latest-version") ] != "nothing" && \
$Update->"installed-version" != $Update->"latest-version") \
([ $FormatLine " Available" ($Update->"latest-version") ] . "\n") ] . \
[ $IfThenElse ($RouterBoard->"routerboard" = true && \
$RouterBoard->"current-firmware" != $RouterBoard->"upgrade-firmware") \
([ $FormatLine " Firmware" ($RouterBoard->"current-firmware") ] . "\n") ] . \
"RouterOS-Scripts:\n" . \
[ $FormatLine " Version" $ExpectedConfigVersion ]);
}
# convert line endings, DOS -> UNIX
:set Dos2Unix do={
:return [ :tolf [ :tostr $1 ] ];
}
# download package from upgrade server
:set DownloadPackage do={
:local PkgName [ :tostr $1 ];
:local PkgVer [ :tostr $2 ];
:local PkgArch [ :tostr $3 ];
:local PkgDir [ :tostr $4 ];
:global CertificateAvailable;
:global CleanFilePath;
:global LogPrint;
:global MkDir;
:global WaitForFile;
:if ([ :len $PkgName ] = 0) do={ :return false; }
:if ([ :len $PkgVer ] = 0) do={ :set PkgVer [ /system/package/update/get installed-version ]; }
:if ([ :len $PkgArch ] = 0) do={ :set PkgArch [ /system/resource/get architecture-name ]; }
:if ($PkgName = "system") do={ :set PkgName "routeros"; }
:local PkgFile ($PkgName . "-" . $PkgVer . "-" . $PkgArch . ".npk");
:if ($PkgArch = "x86_64") do={ :set PkgFile ($PkgName . "-" . $PkgVer . ".npk"); }
:local PkgDest [ $CleanFilePath ($PkgDir . "/" . $PkgFile) ];
:if ([ $MkDir $PkgDir ] = false) do={
$LogPrint warning $0 ("Failed creating directory, not downloading package.");
:return false;
}
:if ([ :len [ /file/find where name=$PkgDest type="package" ] ] > 0) do={
$LogPrint info $0 ("Package file " . $PkgName . " already exists.");
:return true;
}
:if ([ $CertificateAvailable "ISRG Root X1" ] = false) do={
$LogPrint error $0 ("Downloading required certificate failed.");
:return false;
}
:local Url ("https://upgrade.mikrotik.com/routeros/" . $PkgVer . "/" . $PkgFile);
$LogPrint info $0 ("Downloading package file '" . $PkgName . "'...");
$LogPrint debug $0 ("... from url: " . $Url);
:local Retry 3;
:while ($Retry > 0) do={
:do {
/tool/fetch check-certificate=yes-without-crl $Url dst-path=$PkgDest;
$WaitForFile $PkgDest;
:if ([ /file/get [ find where name=$PkgDest ] type ] = "package") do={
:return true;
}
} on-error={
$LogPrint debug $0 ("Downloading package file failed.");
}
/file/remove [ find where name=$PkgDest ];
:set Retry ($Retry - 1);
}
$LogPrint warning $0 ("Downloading package file '" . $PkgName . "' failed.");
:return false;
}
# return either first (if "true") or second
:set EitherOr do={
:global IfThenElse;
:if ([ :typeof $1 ] = "num") do={
:return [ $IfThenElse ($1 != 0) $1 $2 ];
}
:if ([ :typeof $1 ] = "time") do={
:return [ $IfThenElse ($1 > 0s) $1 $2 ];
}
# this works for boolean values, literal ones with parentheses
:return [ $IfThenElse ([ :len [ :tostr $1 ] ] > 0) $1 $2 ];
}
# escape for regular expression
:set EscapeForRegEx do={
:local Input [ :tostr $1 ];
:if ([ :len $Input ] = 0) do={
:return "";
}
:local Return "";
:local Chars ("^.[]\$()|*+?{}\\");
:for I from=0 to=([ :len $Input ] - 1) do={
:local Char [ :pick $Input $I ];
:if ([ :find $Chars $Char ]) do={
:set Char ("\\" . $Char);
}
:set Return ($Return . $Char);
}
:return $Return;
}
# fetch huge data to file, read in chunks
:set FetchHuge do={
:local ScriptName [ :tostr $1 ];
:local Url [ :tostr $2 ];
:local CheckCert [ :tobool $3 ];
:global CleanName;
:global FetchUserAgentStr;
:global GetRandom20CharAlNum;
:global IfThenElse;
:global LogPrint;
:global MkDir;
:global WaitForFile;
:set CheckCert [ $IfThenElse ($CheckCert = false) "no" "yes-without-crl" ];
:local DirName ("tmpfs/" . [ $CleanName $ScriptName ]);
:if ([ $MkDir $DirName ] = false) do={
$LogPrint error $0 ("Failed creating directory!");
:return false;
}
:local FileName ($DirName . "/" . [ $CleanName $0 ] . "-" . [ $GetRandom20CharAlNum ]);
:do {
/tool/fetch check-certificate=$CheckCert $Url dst-path=$FileName \
http-header-field=({ [ $FetchUserAgentStr $ScriptName ] }) as-value;
} on-error={
:if ([ $WaitForFile $FileName 500ms ] = true) do={
/file/remove $FileName;
}
$LogPrint debug $0 ("Failed downloading from: " . $Url);
/file/remove $DirName;
:return false;
}
$WaitForFile $FileName;
:local FileSize [ /file/get $FileName size ];
:local Return "";
:local VarSize 0;
:while ($VarSize < $FileSize) do={
:set Return ($Return . ([ /file/read offset=$VarSize chunk-size=32768 file=$FileName as-value ]->"data"));
:set VarSize [ :len $Return ];
}
/file/remove $DirName;
:return $Return;
}
# generate user agent string for fetch
:set FetchUserAgentStr do={
:local Caller [ :tostr $1 ];
:local Resource [ /system/resource/get ];
:return ("User-Agent: Mikrotik/" . $Resource->"version" . " " . \
$Resource->"architecture-name" . " " . $Caller . "/Fetch (https://rsc.eworm.de/)");
}
# format a line for output
:set FormatLine do={
:local Key [ :tostr $1 ];
:local Value [ :tostr $2 ];
:local Indent [ :tonum $3 ];
:local Spaces;
:local Return "";
:global CharacterMultiply;
:global EitherOr;
:set Indent [ $EitherOr $Indent 16 ];
:local Spaces [ $CharacterMultiply " " $Indent ];
:if ([ :len $Key ] > 0) do={ :set Return ($Key . ":"); }
:if ([ :len $Key ] > ($Indent - 2)) do={
:set Return ($Return . "\n" . [ :pick $Spaces 0 $Indent ] . $Value);
} else={
:set Return ($Return . [ :pick $Spaces 0 ($Indent - [ :len $Return ]) ] . $Value);
}
:return $Return;
}
# format multiple lines for output
:set FormatMultiLines do={
:local Key [ :tostr $1 ];
:local Values [ :toarray $2 ];
:local Indent [ :tonum $3 ];
:local Return;
:global FormatLine;
:set Return [ $FormatLine $Key ($Values->0) $Indent ];
:foreach Value in=[ :pick $Values 1 [ :len $Values ] ] do={
:set Return ($Return . "\n" . [ $FormatLine "" $Value $Indent ]);
}
:return $Return;
}
# get MAC vendor
:set GetMacVendor do={
:local Mac [ :tostr $1 ];
:global CertificateAvailable;
:global IsMacLocallyAdministered;
:global LogPrint;
:if ([ $IsMacLocallyAdministered $Mac ] = true) do={
:return "locally administered";
}
:do {
:if ([ $CertificateAvailable "GTS Root R4" ] = false) do={
$LogPrint warning $0 ("Downloading required certificate failed.");
:error false;
}
:local Vendor ([ /tool/fetch check-certificate=yes-without-crl \
("https://api.macvendors.com/" . [ :pick $Mac 0 8 ]) output=user as-value ]->"data");
:return $Vendor;
} on-error={
:do {
/tool/fetch check-certificate=yes-without-crl ("https://api.macvendors.com/") \
output=none as-value;
$LogPrint debug $0 ("The mac vendor is not known in database.");
} on-error={
$LogPrint warning $0 ("Failed getting mac vendor.");
}
:return "unknown vendor";
}
}
# generate random 20 chars alphabetical (A-Z & a-z) and numerical (0-9)
:set GetRandom20CharAlNum do={
:global EitherOr;
:return [ :rndstr length=[ $EitherOr [ :tonum $1 ] 20 ] from="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789" ];
}
# generate random 20 chars hex (0-9 and a-f)
:set GetRandom20CharHex do={
:global EitherOr;
:return [ :rndstr length=[ $EitherOr [ :tonum $1 ] 20 ] from="0123456789abcdef" ];
}
# generate random number
:set GetRandomNumber do={
:global EitherOr;
:return [ :rndnum from=0 to=[ $EitherOr [ :tonum $1 ] 4294967295 ] ];
}
# return first line that matches a pattern
:set Grep do={
:local Input ([ :tostr $1 ] . "\n");
:local Pattern [ :tostr $2 ];
:if ([ :typeof [ :find $Input $Pattern ] ] = "nil") do={
:return [];
}
:do {
:local Line [ :pick $Input 0 [ :find $Input "\n" ] ];
:if ([ :typeof [ :find $Line $Pattern ] ] = "num") do={
:return $Line;
}
:set Input [ :pick $Input ([ :find $Input "\n" ] + 1) [ :len $Input ] ];
} while=([ :len $Input ] > 0);
:return [];
}
# convert from hex (string) to num
:set HexToNum do={
:local Input [ :tostr $1 ];
:global HexToNum;
:if ([ :pick $Input 0 ] = "*") do={
:return [ $HexToNum [ :pick $Input 1 [ :len $Input ] ] ];
}
:return [ :tonum ("0x" . $Input) ];
}
# return human readable number
:set HumanReadableNum do={
:local Input [ :tonum $1 ];
:local Base [ :tonum $2 ];
:global EitherOr;
:global IfThenElse;
:local Prefix "kMGTPE";
:local Pow 1;
:set Base [ $EitherOr $Base 1024 ];
:local Bin [ $IfThenElse ($Base = 1024) "i" "" ];
:if ($Input < $Base) do={
:return $Input;
}
:for I from=0 to=[ :len $Prefix ] do={
:set Pow ($Pow * $Base);
:if ($Input / $Base < $Pow) do={
:set Prefix [ :pick $Prefix $I ];
:local Tmp1 ($Input * 100 / $Pow);
:local Tmp2 ($Tmp1 / 100);
:if ($Tmp2 >= 100) do={
:return ($Tmp2 . $Prefix . $Bin);
}
:return ($Tmp2 . "." . \
[ :pick $Tmp1 [ :len $Tmp2 ] ([ :len $Tmp1 ] - [ :len $Tmp2 ] + 1) ] . \
$Prefix . $Bin);
}
}
}
# mimic conditional/ternary operator (condition ? consequent : alternative)
:set IfThenElse do={
:if ([ :tostr $1 ] = "true" || [ :tobool $1 ] = true) do={
:return $2;
}
:return $3;
}
# check if default route is reachable
:set IsDefaultRouteReachable do={
:if ([ :len [ /ip/route/find where dst-address=0.0.0.0/0 active routing-table=main ] ] > 0) do={
:return true;
}
:return false;
}
# check if DNS is resolving
:set IsDNSResolving do={
:do {
:resolve "low-ttl.eworm.de";
} on-error={
:return false;
}
:return true;
}
# check if system is is fully connected (default route reachable, DNS resolving, time sync)
:set IsFullyConnected do={
:global IsDefaultRouteReachable;
:global IsDNSResolving;
:global IsTimeSync;
:if ([ $IsDefaultRouteReachable ] = false) do={
:return false;
}
:if ([ $IsDNSResolving ] = false) do={
:return false;
}
:if ([ $IsTimeSync ] = false) do={
:return false;
}
:return true;
}
# check if mac address is locally administered
:set IsMacLocallyAdministered do={
:if ([ :tonum ("0x" . [ :pick $1 0 [ :find $1 ":" ] ]) ] & 2 = 2) do={
:return true;
}
:return false;
}
# check if system time is sync
:set IsTimeSync do={
:global IsTimeSyncCached;
:global IsTimeSyncResetNtp;
:global LogPrintOnce;
:if ($IsTimeSyncCached = true) do={
:return true;
}
:if ([ /system/ntp/client/get enabled ] = true) do={
:if ([ /system/ntp/client/get status ] = "synchronized") do={
:set IsTimeSyncCached true;
:return true;
}
:local Uptime [ /system/resource/get uptime ];
:if ([ :typeof $IsTimeSyncResetNtp ] = "nothing") do={
:set IsTimeSyncResetNtp $Uptime;
}
:if ($Uptime - $IsTimeSyncResetNtp < 3m) do={
:return false;
}
$LogPrintOnce warning $0 ("The ntp client is configured, but did not sync.");
:set IsTimeSyncResetNtp $Uptime;
/system/ntp/client/set enabled=no;
:delay 20ms;
/system/ntp/client/set enabled=yes;
:return false;
}
:if ([ /system/license/get ]->"level" = "free" || \
[ /system/resource/get ]->"board-name" = "x86") do={
$LogPrintOnce debug $0 ("No ntp client configured, relying on RTC for CHR free license and x86.");
:return true;
}
:if ([ /ip/cloud/get update-time ] = true) do={
:if ([ :typeof [ /ip/cloud/get public-address ] ] = "ip") do={
:set IsTimeSyncCached true;
:return true;
}
:return false;
}
$LogPrintOnce debug $0 ("No time source configured! Returning gracefully...");
:return true;
}
# log and print with same text
:set LogPrint do={
:local Severity [ :tostr $1 ];
:local Name [ :tostr $2 ];
:local Message [ :tostr $3 ];
:global PrintDebug;
:global PrintDebugOverride;
:global EitherOr;
:local Debug [ $EitherOr ($PrintDebugOverride->$Name) $PrintDebug ];
:local PrintSeverity do={
:global TerminalColorOutput;
:if ($TerminalColorOutput != true) do={
:return $1;
}
:local Color { debug=96; info=97; warning=93; error=91 };
:return ("\1B[" . $Color->$1 . "m" . $1 . "\1B[0m");
}
:local Log ([ $EitherOr $Name "<unknown>" ] . ": " . $Message);
:if ($Severity ~ ("^(debug|error|info)\$")) do={
:if ($Severity = "debug") do={ :log debug $Log; }
:if ($Severity = "error") do={ :log error $Log; }
:if ($Severity = "info" ) do={ :log info $Log; }
} else={
:log warning $Log;
:set Severity "warning";
}
:if ($Severity != "debug" || $Debug = true) do={
:put ([ $PrintSeverity $Severity ] . ": " . $Message);
}
}
# log and print, once until reboot
:set LogPrintOnce do={
:local Severity [ :tostr $1 ];
:local Name [ :tostr $2 ];
:local Message [ :tostr $3 ];
:global LogPrint;
:global LogPrintOnceMessages;
:if ([ :typeof $LogPrintOnceMessages ] = "nothing") do={
:set LogPrintOnceMessages ({});
}
:if ($LogPrintOnceMessages->$Message = 1) do={
:return false;
}
:if ([ :len [ /log/find where message=($Name . ": " . $Message) ] ] > 0) do={
$LogPrint warning $0 \
("The message is already in log, scripting subsystem may have crashed before!");
}
:set ($LogPrintOnceMessages->$Message) 1;
$LogPrint $Severity $Name $Message;
:return true;
}
# get max value
:set MAX do={
:if ($1 > $2) do={ :return $1; }
:return $2;
}
# get min value
:set MIN do={
:if ($1 < $2) do={ :return $1; }
:return $2;
}
# create directory
:set MkDir do={
:local Path [ :tostr $1 ];
:global CleanFilePath;
:global LogPrint;
:global WaitForFile;
:local MkTmpfs do={
:global LogPrint;
:global WaitForFile;
:local TmpFs [ /disk/find where slot=tmpfs type=tmpfs ];
:if ([ :len $TmpFs ] = 1) do={
:if ([ /disk/get $TmpFs disabled ] = true) do={
$LogPrint info $0 ("The tmpfs is disabled, enabling.");
/disk/enable $TmpFs;
}
:return true;
}
$LogPrint info $0 ("Creating disk of type tmpfs.");
/file/remove [ find where name="tmpfs" type="directory" ];
:do {
/disk/add slot=tmpfs type=tmpfs tmpfs-max-size=([ /system/resource/get total-memory ] / 3);
$WaitForFile "tmpfs";
} on-error={
$LogPrint warning $0 ("Creating disk of type tmpfs failed!");
:return false;
}
:return true;
}
:set Path [ $CleanFilePath $Path ];
:if ($Path = "") do={
:return true;
}
:if ([ :len [ /file/find where name=$Path type="directory" ] ] = 1) do={
:return true;
}
:if ([ :pick $Path 0 5 ] = "tmpfs") do={
:if ([ $MkTmpfs ] = false) do={
:return false;
}
}
:do {
:local File ($Path . "/file");
/file/add name=$File;
$WaitForFile $File;
/file/remove $File;
} on-error={
$LogPrint warning $0 ("Making directory '" . $Path . "' failed!");
:return false;
}
:return true;
}
# prepare NotificationFunctions array
:if ([ :typeof $NotificationFunctions ] != "array") do={
:set NotificationFunctions ({});
}
# parse the date and return a named array
:set ParseDate do={
:local Date [ :tostr $1 ];
:return ({ "year"=[ :tonum [ :pick $Date 0 4 ] ];
"month"=[ :tonum [ :pick $Date 5 7 ] ];
"day"=[ :tonum [ :pick $Date 8 10 ] ] });
}
# parse key value store
:set ParseKeyValueStore do={
:local Source $1;
:if ([ :typeof $Source ] != "array") do={
:set Source [ :tostr $1 ];
}
:local Result ({});
:foreach KeyValue in=[ :toarray $Source ] do={
:if ([ :find $KeyValue "=" ]) do={
:set ($Result->[ :pick $KeyValue 0 [ :find $KeyValue "=" ] ]) \
[ :pick $KeyValue ([ :find $KeyValue "=" ] + 1) [ :len $KeyValue ] ];
} else={
:set ($Result->$KeyValue) true;
}
}
:return $Result;
}
# print lines with trailing carriage return
:set PrettyPrint do={
:put [ :tocrlf [ :tostr $1 ] ];
}
# strip protocol from from url string
:set ProtocolStrip do={
:local Input [ :tostr $1 ];
:local Pos [ :find $Input "://" ];
:if ([ :typeof $Pos ] = "nil") do={
:return $Input;
}
:return [ :pick $Input ($Pos + 3) [ :len $Input ] ];
}
# delay a random amount of seconds
:set RandomDelay do={
:local Time [ :tonum $1 ];
:local Unit [ :tostr $2 ];
:global EitherOr;
:global GetRandomNumber;
:global MAX;
:if ($Time = 0) do={
:return false;
}
:delay ([ $MAX 10 [ $GetRandomNumber ([ :tonsec [ :totime ($Time . [ $EitherOr $Unit "s" ]) ] ] / 1000000) ] ] . "ms");
}
# check for required RouterOS version
:set RequiredRouterOS do={
:local Caller [ :tostr $1 ];
:local Required [ :tostr $2 ];
:local Warn [ :tostr $3 ];
:global IfThenElse;
:global LogPrint;
:global VersionToNum;
:if (!($Required ~ "^\\d+\\.\\d+((alpha|beta|rc|\\.)\\d+|)\$")) do={
$LogPrint error $0 ("No valid RouterOS version: " . $Required);
:return false;
}
:if ([ $VersionToNum $Required ] > [ $VersionToNum [ /system/package/update/get installed-version ] ]) do={
:if ($Warn = "true") do={
$LogPrint warning $0 ("This " . [ $IfThenElse ([ :pick $Caller 0 ] = ("\$")) "function" "script" ] . \
" '" . $Caller . "' (at least specific functionality) requires RouterOS " . $Required . ". Please update!");
}
:return false;
}
:return true;
}
# check if script is run from terminal
:set ScriptFromTerminal do={
:local Script [ :tostr $1 ];
:global LogPrint;
:global ScriptLock;
:if ([ $ScriptLock $Script ] = false) do={
:return false;
}
:foreach Job in=[ /system/script/job/find where script=$Script ] do={
:set Job [ /system/script/job/get $Job ];
:while ([ :typeof ($Job->"parent") ] = "id") do={
:set Job [ /system/script/job/get [ find where .id=($Job->"parent") ] ];
}
:if (($Job->"type") = "login") do={
$LogPrint debug $0 ("Script " . $Script . " started from terminal.");
:return true;
}
}
$LogPrint debug $0 ("Script " . $Script . " NOT started from terminal.");
:return false;
}
# install new scripts, update existing scripts
:set ScriptInstallUpdate do={
:local Scripts [ :toarray $1 ];
:local NewComment [ :tostr $2 ];
:global ExpectedConfigVersion;
:global Identity;