mirror of
https://github.com/eworm-de/routeros-scripts
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112 lines
3.6 KiB
Text
112 lines
3.6 KiB
Text
#!rsc by RouterOS
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# RouterOS script: mod/ssh-keys-import
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# Copyright (c) 2020-2024 Christian Hesse <mail@eworm.de>
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# https://git.eworm.de/cgit/routeros-scripts/about/COPYING.md
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#
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# requires RouterOS, version=7.12
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#
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# import ssh keys for public key authentication
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# https://git.eworm.de/cgit/routeros-scripts/about/doc/mod/ssh-keys-import.md
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:global SSHKeysImport;
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:global SSHKeysImportFile;
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# import single key passed as string
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:set SSHKeysImport do={
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:local Key [ :tostr $1 ];
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:local User [ :tostr $2 ];
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:global CharacterReplace;
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:global GetRandom20CharAlNum;
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:global LogPrint;
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:global MkDir;
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:global WaitForFile;
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:if ([ :len $Key ] = 0 || [ :len $User ] = 0) do={
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$LogPrint warning $0 ("Missing argument(s), please pass key and user!");
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:error false;
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}
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:if ([ :len [ /user/find where name=$User ] ] = 0) do={
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$LogPrint warning $0 ("User '" . $User . "' does not exist.");
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:error false;
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}
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:local KeyVal [ :toarray [ $CharacterReplace $Key " " "," ] ];
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:if (!($KeyVal->0 = "ssh-ed25519" || $KeyVal->0 = "ssh-rsa")) do={
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$LogPrint warning $0 ("SSH key of type '" . $KeyVal->0 . "' is not supported.");
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:error false;
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}
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:if ([ $MkDir "tmpfs/ssh-keys-import" ] = false) do={
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$LogPrint warning $0 ("Creating directory 'tmpfs/ssh-keys-import' failed!");
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:error false;
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}
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:local FingerPrintMD5 [ :convert from=base64 transform=md5 to=hex ($KeyVal->1) ];
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:if ([ :len [ /user/ssh-keys/find where user=$User key-owner~("\\bmd5=" . $FingerPrintMD5 . "\\b") ] ] > 0) do={
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$LogPrint warning $0 ("The ssh public key (MD5:" . $FingerPrintMD5 . \
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") is already available for user '" . $User . "'.");
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:return false;
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}
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:local FileName ("tmpfs/ssh-keys-import/key-" . [ $GetRandom20CharAlNum 6 ] . ".pub");
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/file/add name=$FileName contents=($Key . ", md5=" . $FingerPrintMD5);
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$WaitForFile $FileName;
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:do {
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/user/ssh-keys/import public-key-file=$FileName user=$User;
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$LogPrint info $0 ("Imported ssh public key (" . $KeyVal->2 . ", " . $KeyVal->0 . ", " . \
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"MD5:" . $FingerPrintMD5 . ") for user '" . $User . "'.");
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} on-error={
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$LogPrint warning $0 ("Failed importing key.");
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:error false;
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}
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}
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# import keys from a file
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:set SSHKeysImportFile do={
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:local FileName [ :tostr $1 ];
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:local User [ :tostr $2 ];
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:global CharacterReplace;
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:global EitherOr;
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:global LogPrint;
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:global ParseKeyValueStore;
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:global SSHKeysImport;
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:if ([ :len $FileName ] = 0 || [ :len $User ] = 0) do={
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$LogPrint warning $0 ("Missing argument(s), please pass file name and user!");
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:error false;
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}
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:local File [ /file/find where name=$FileName ];
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:if ([ :len $File ] = 0) do={
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$LogPrint warning $0 ("File '" . $FileName . "' does not exist.");
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:error false;
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}
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:local Keys ([ /file/get $FileName contents ] . "\n");
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:do {
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:local Continue false;
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:local Line [ :pick $Keys 0 [ :find $Keys "\n" ] ];
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:set Keys [ :pick $Keys ([ :find $Keys "\n" ] + 1) [ :len $Keys ] ];
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:local KeyVal [ :toarray [ $CharacterReplace $Line " " "," ] ];
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:if ($KeyVal->0 = "ssh-ed25519" || $KeyVal->0 = "ssh-rsa") do={
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:do {
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$SSHKeysImport $Line $User;
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} on-error={
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$LogPrint warning $0 ("Failed importing key for user '" . $User . "'.");
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}
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:set Continue true;
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}
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:if ($Continue = false && $KeyVal->0 = "#") do={
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:set User [ $EitherOr ([ $ParseKeyValueStore [ :pick $Line 2 [ :len $Line ] ] ]->"user") $User ];
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:set Continue true;
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}
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:if ($Continue = false && [ :len ($KeyVal->0) ] > 0) do={
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$LogPrint warning $0 ("SSH key of type '" . $KeyVal->0 . "' is not supported.");
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}
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} while=([ :len $Keys ] > 0);
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}
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