From 001e7eeb39ee993539334805622f8cd24fde63e9 Mon Sep 17 00:00:00 2001
From: Christian Hesse <mail@eworm.de>
Date: Fri, 28 Feb 2020 15:26:26 +0100
Subject: global-functions: sort alphabetically

---
 check-certificates            |   6 +-
 check-routeros-update         |   2 +-
 cloud-backup                  |   2 +-
 collect-wireless-mac.capsman  |   2 +-
 collect-wireless-mac.local    |   2 +-
 collect-wireless-mac.template |   2 +-
 daily-psk.template            |   2 +-
 dhcp-to-dns                   |   2 +-
 email-backup                  |  10 +-
 global-functions              | 611 +++++++++++++++++++++---------------------
 gps-track                     |   2 +-
 ipv6-update                   |   2 +-
 packages-update               |   2 +-
 script-updates                |   8 +-
 sms-forward                   |   4 +-
 update-tunnelbroker           |   2 +-
 upload-backup                 |  14 +-
 17 files changed, 337 insertions(+), 338 deletions(-)

diff --git a/check-certificates b/check-certificates
index d94c330..38f1c79 100644
--- a/check-certificates
+++ b/check-certificates
@@ -4,17 +4,17 @@
 #
 # check for certificate validity
 
-:global Identity;
-:global CertRenewUrl;
 :global CertRenewPass;
+:global CertRenewUrl;
+:global Identity;
 
 :global CertificateNameByCN;
+:global LogPrintExit;
 :global ParseKeyValueStore;
 :global SendNotification;
 :global TimeIsSync;
 :global UrlEncode;
 :global WaitForFile;
-:global LogPrintExit;
 
 :local FormatExpire do={
   :global CharacterReplace;
diff --git a/check-routeros-update b/check-routeros-update
index d622ba3..4ed52f3 100644
--- a/check-routeros-update
+++ b/check-routeros-update
@@ -9,9 +9,9 @@
 :global SentRouterosUpdateNotification;
 
 :global DeviceInfo;
+:global LogPrintExit;
 :global ScriptFromTerminal;
 :global SendNotification;
-:global LogPrintExit;
 
 :local DoUpdate do={
   :if ([ / system script print count-only where name="packages-update" ] > 0) do={
diff --git a/cloud-backup b/cloud-backup
index 5875cd1..9a225a2 100644
--- a/cloud-backup
+++ b/cloud-backup
@@ -4,8 +4,8 @@
 #
 # upload backup to MikroTik cloud
 
-:global Identity;
 :global BackupPassword;
+:global Identity;
 
 :global DeviceInfo;
 :global SendNotification;
diff --git a/collect-wireless-mac.capsman b/collect-wireless-mac.capsman
index 2b9b23f..a280cea 100644
--- a/collect-wireless-mac.capsman
+++ b/collect-wireless-mac.capsman
@@ -9,8 +9,8 @@
 :global Identity;
 
 :global GetMacVendor;
-:global SendNotification;
 :global ScriptLock;
+:global SendNotification;
 
 $ScriptLock "collect-wireless-mac.capsman";
 
diff --git a/collect-wireless-mac.local b/collect-wireless-mac.local
index 3241c27..cf09fa5 100644
--- a/collect-wireless-mac.local
+++ b/collect-wireless-mac.local
@@ -9,8 +9,8 @@
 :global Identity;
 
 :global GetMacVendor;
-:global SendNotification;
 :global ScriptLock;
+:global SendNotification;
 
 $ScriptLock "collect-wireless-mac.local";
 
diff --git a/collect-wireless-mac.template b/collect-wireless-mac.template
index 6ad55a2..8f8ded8 100644
--- a/collect-wireless-mac.template
+++ b/collect-wireless-mac.template
@@ -10,8 +10,8 @@
 :global Identity;
 
 :global GetMacVendor;
-:global SendNotification;
 :global ScriptLock;
+:global SendNotification;
 
 $ScriptLock "collect-wireless-mac%TEMPL%";
 
diff --git a/daily-psk.template b/daily-psk.template
index e0ae26a..88353a4 100644
--- a/daily-psk.template
+++ b/daily-psk.template
@@ -8,8 +8,8 @@
 # !! This is just a template! Replace '%PATH%' with 'caps-man'
 # !! or 'interface wireless'!
 
-:global Identity;
 :global DailyPskMatchComment;
+:global Identity;
 
 :global SendNotification;
 :global UrlEncode;
diff --git a/dhcp-to-dns b/dhcp-to-dns
index 5343513..0d92278 100644
--- a/dhcp-to-dns
+++ b/dhcp-to-dns
@@ -6,9 +6,9 @@
 
 :global CharacterReplace;
 
-:global Identity;
 :global Domain;
 :global HostNameInZone;
+:global Identity;
 
 :local Zone;
 :if ($HostNameInZone = true) do={
diff --git a/email-backup b/email-backup
index 978ac4d..2449173 100644
--- a/email-backup
+++ b/email-backup
@@ -4,13 +4,13 @@
 #
 # create and email backup and config file
 
-:global Identity;
-:global Domain;
-:global EmailBackupTo;
-:global EmailBackupCc;
+:global BackupPassword;
 :global BackupSendBinary;
 :global BackupSendExport;
-:global BackupPassword;
+:global Domain;
+:global EmailBackupCc;
+:global EmailBackupTo;
+:global Identity;
 
 :global CharacterReplace;
 :global DeviceInfo;
diff --git a/global-functions b/global-functions
index cdc7300..cc8ca20 100644
--- a/global-functions
+++ b/global-functions
@@ -9,89 +9,64 @@
 :global ExpectedConfigVersion 12;
 
 # global variables not to be changed by user
+:global Identity [ / system identity get name ];
 :global SentConfigChangesNotification "-";
-:global SentRouterosUpdateNotification "-";
 :global SentLteFirmwareUpgradeNotification "-";
-:global Identity [ / system identity get name ];
+:global SentRouterosUpdateNotification "-";
 
 # global functions
-:global UrlEncode;
-:global CharacterReplace;
-:global CertificateNameByCN;
-:global CertificateDownload;
 :global CertificateAvailable;
-:global SendEMail;
-:global SendTelegram;
-:global SendNotification;
-:global GetMacVendor;
+:global CertificateDownload;
+:global CertificateNameByCN;
+:global CharacterReplace;
 :global CleanFilePath;
+:global DeviceInfo;
 :global DownloadPackage;
-:global ScriptLock;
-:global ScriptFromTerminal;
-:global WaitForFile;
-:global ParseKeyValueStore;
+:global GetMacVendor;
 :global GetRandom;
+:global LogPrintExit;
+:global MailServerIsUp;
+:global ParseKeyValueStore;
 :global RandomDelay;
-:global DeviceInfo;
+:global ScriptFromTerminal;
 :global ScriptInstallUpdate;
-:global MailServerIsUp;
+:global ScriptLock;
+:global SendEMail;
+:global SendNotification;
+:global SendTelegram;
 :global TimeIsSync;
+:global UrlEncode;
+:global WaitForFile;
 :global WaitTimeSync;
-:global LogPrintExit;
-
-# url encoding
-:set UrlEncode do={
-  :local Input [ :tostr $1 ];
-  :local Return "";
-
-  :if ([ :len $Input ] > 0) do={
-    :local Chars " !\"#\$%&'()*+,:;<=>\?@[\\]^`{|}~";
-    :local Subs { "%20"; "%21"; "%22"; "%23"; "%24"; "%25"; "%26"; "%27"; "%28"; "%29";
-                  "%2A"; "%2B"; "%2C"; "%3A"; "%3B"; "%3C"; "%3D"; "%3E"; "%3F"; "%40";
-                  "%5B"; "%5C"; "%5D"; "%5E"; "%60"; "%7B"; "%7C"; "%7D"; "%7E" };
-
-    :for I from=0 to=([ :len $Input ] - 1) do={
-      :local Char [ :pick $Input $I ];
-      :local Replace [ :find $Chars $Char ];
-
-      :if ([ :len $Replace ] > 0) do={
-        :set Char ($Subs->$Replace);
-      }
-      :set Return ($Return . $Char);
-    }
-  }
 
-  :return $Return;
-}
+# check and download required certificate
+:set CertificateAvailable do={
+  :local CommonName [ :tostr $1 ];
 
-# character replace
-:set CharacterReplace do={
-  :local String [ :tostr $1 ];
-  :local ReplaceFrom [ :tostr $2 ];
-  :local ReplaceWith [ :tostr $3 ];
-  :local Return "";
+  :global CertificateDownload;
+  :global ParseKeyValueStore;
 
-  :if ($ReplaceFrom = "") do={
-    :return $String;
+  :if ([ / system resource get free-hdd-space ] < 8388608 && \
+       [ / certificate settings get crl-download ] = true && \
+       [ / certificate settings get crl-store ] = "system") do={
+    :log warn "This system has low free flash space but is configured to download certificate CRLs to system!";
   }
 
-  :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 $String ] ];
+  :if ([ / certificate print count-only where common-name=$CommonName ] = 0) do={
+    :log info ("Certificate with CommonName \"" . $CommonName . "\" not available.");
+    $CertificateDownload $CommonName;
   }
 
-  :return ($Return . $String);
-}
-
-# name a certificate by its common-name
-:set CertificateNameByCN do={
-  :local CommonName [ :tostr $1 ];
-
-  :global CharacterReplace;
-
-  :local Cert [ / certificate find where common-name=$CommonName ];
-  / certificate set $Cert name=[ $CharacterReplace [ $CharacterReplace $CommonName " " "-" ] "---" "-" ];
+  :local CertVal;
+  :local Issuer $CommonName;
+  :do {
+    :if ([ / certificate print count-only where common-name=$Issuer ] = 0) do={
+      :log info ("Certificate chain for \"" . $CommonName . "\" is incomplete, missing \"" . $Issuer . "\".");
+      $CertificateDownload $CommonName;
+    }
+    :set CertVal [ / certificate get [ find where common-name=$Issuer ] ];
+    :set Issuer ([ $ParseKeyValueStore ($CertVal->"issuer") ]->"CN");
+  } while=($Issuer != $CertVal->"common-name");
 }
 
 # download and import certificate
@@ -126,118 +101,34 @@
   }
 }
 
-# check and download required certificate
-:set CertificateAvailable do={
+# name a certificate by its common-name
+:set CertificateNameByCN do={
   :local CommonName [ :tostr $1 ];
 
-  :global CertificateDownload;
-  :global ParseKeyValueStore;
-
-  :if ([ / system resource get free-hdd-space ] < 8388608 && \
-       [ / certificate settings get crl-download ] = true && \
-       [ / certificate settings get crl-store ] = "system") do={
-    :log warn "This system has low free flash space but is configured to download certificate CRLs to system!";
-  }
-
-  :if ([ / certificate print count-only where common-name=$CommonName ] = 0) do={
-    :log info ("Certificate with CommonName \"" . $CommonName . "\" not available.");
-    $CertificateDownload $CommonName;
-  }
+  :global CharacterReplace;
 
-  :local CertVal;
-  :local Issuer $CommonName;
-  :do {
-    :if ([ / certificate print count-only where common-name=$Issuer ] = 0) do={
-      :log info ("Certificate chain for \"" . $CommonName . "\" is incomplete, missing \"" . $Issuer . "\".");
-      $CertificateDownload $CommonName;
-    }
-    :set CertVal [ / certificate get [ find where common-name=$Issuer ] ];
-    :set Issuer ([ $ParseKeyValueStore ($CertVal->"issuer") ]->"CN");
-  } while=($Issuer != $CertVal->"common-name");
+  :local Cert [ / certificate find where common-name=$CommonName ];
+  / certificate set $Cert name=[ $CharacterReplace [ $CharacterReplace $CommonName " " "-" ] "---" "-" ];
 }
 
-# send notification via e-mail
-:set SendEMail do={
-  :local Subject [ :tostr $1 ];
-  :local Message [ :tostr $2 ];
-  :local Attach  [ :tostr $3 ];
-
-  :global Identity;
-  :global EmailGeneralTo;
-  :global EmailGeneralCc;
+# character replace
+:set CharacterReplace do={
+  :local String [ :tostr $1 ];
+  :local ReplaceFrom [ :tostr $2 ];
+  :local ReplaceWith [ :tostr $3 ];
+  :local Return "";
 
-  :if ([ :len $EmailGeneralTo ] > 0) do={
-    :do {
-      :local Signature [ / system note get note ];
-      :if ([ :len $Signature ] > 0) do={
-        :set Signature ("\n-- \n" . $Signature);
-      }
-      / tool e-mail send to=$EmailGeneralTo cc=$EmailGeneralCc \
-        subject=("[" . $Identity . "] " . $Subject) \
-        body=($Message . $Signature) file=$Attach;
-    } on-error={
-      :log warning "Failed sending notification mail!";
-    }
+  :if ($ReplaceFrom = "") do={
+    :return $String;
   }
-}
-
-# send notification via telegram
-:set SendTelegram do={
-  :local Subject [ :tostr $1 ];
-  :local Message [ :tostr $2 ];
-  :local Silent  [ :tostr $3 ];
-
-  :global Identity;
-  :global TelegramTokenId;
-  :global TelegramChatId;
-
-  :global UrlEncode;
-  :global CertificateAvailable;
 
-  :if ([ :len $TelegramTokenId ] > 0 && [ :len $TelegramChatId ] > 0) do={
-    $CertificateAvailable "Go Daddy Secure Certificate Authority - G2";
-    :do {
-      / tool fetch check-certificate=yes-without-crl output=none http-method=post \
-        ("https://api.telegram.org/bot" . $TelegramTokenId . "/sendMessage") \
-        http-data=("chat_id=" . $TelegramChatId . "&disable_notification=" . $Silent . \
-        "&text=" . [ $UrlEncode ("[" . $Identity . "] " . $Subject . "\n\n" . $Message) ]);
-    } on-error={
-      :log warning "Failed sending telegram notification!";
-    }
+  :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 ] ];
   }
-}
-
-# send notification via e-mail and telegram
-# Note that attachment is ignored for telegram, silent is ignored for e-mail!
-:set SendNotification do={
-  :local Subject [ :tostr $1 ];
-  :local Message [ :tostr $2 ];
-  :local Attach  [ :tostr $3 ];
-  :local Silent  [ :tostr $4 ];
-
-  :global SendEMail;
-  :global SendTelegram;
-
-  $SendEMail $Subject $Message $Attach;
-  $SendTelegram $Subject $Message $Silent;
-}
-
-
-# get MAC vendor
-:set GetMacVendor do={
-  :local Mac [ :tostr $1 ];
-
-  :global CertificateAvailable;
 
-  :do {
-    :local Vendor;
-    $CertificateAvailable "Let's Encrypt Authority X3";
-    :set Vendor ([ / tool fetch check-certificate=yes-without-crl \
-        ("https://api.macvendors.com/" . [ :pick $Mac 0 8 ]) output=user as-value ]->"data");
-    :return $Vendor;
-  } on-error={
-    :return "unknown vendor";
-  }
+  :return ($Return . $String);
 }
 
 # clean file path
@@ -259,33 +150,76 @@
   :return $Path;
 }
 
-# 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 WaitForFile;
-
-  :if ([ :len $PkgName ] = 0) do={ return false; }
-  :if ([ :len $PkgVer  ] = 0) do={ :set PkgVer  [ / system package update get installed-version ]; }
-  :if ([ :len $PkgArch ] = 0) do={ :set PkgArch [ / system resource get architecture-name ]; }
-
-  :local PkgFile ($PkgName . "-" . $PkgVer . "-" . $PkgArch . ".npk");
-  :if ($PkgArch = "x86_64") do={
-    :set PkgFile ($PkgName . "-" . $PkgVer . ".npk");
-  }
-  :local PkgDest [ $CleanFilePath ($PkgDir . "/" . $PkgFile) ];
+# get readable device info
+:set DeviceInfo do={
+  :global ExpectedConfigVersion;
+  :global GlobalConfigVersion;
+  :global Identity;
 
-  $CertificateAvailable "Let's Encrypt Authority X3";
+  :local Resource [ / system resource get ];
+  :local RouterBoard [ / system routerboard get ];
+  :local Update [ / system package update get ];
 
-  :local Retry 3;
-  :while ($Retry > 0) do={
-    :do {
-      / tool fetch check-certificate=yes-without-crl \
+  :local Info ( \
+    "Hostname:       " . $Identity . "\n" . \
+    "Board name:     " . $Resource->"board-name" . "\n" . \
+    "Architecture:   " . $Resource->"architecture-name");
+  :if ($RouterBoard->"routerboard" = true) do={
+    :local Revision "";
+    :if ([ :len ($RouterBoard->"revision") ] > 0) do={
+      :set Revision (" " . $RouterBoard->"revision");
+    }
+    :set Info ($Info . "\n" . \
+      "Model:          " . $RouterBoard->"model" . $Revision . "\n" . \
+      "Serial number:  " . $RouterBoard->"serial-number");
+  }
+  :set Info ($Info . "\n" . \
+    "RouterOS:\n" . \
+    "  Channel:      " . $Update->"channel" . "\n" . \
+    "  Installed:    " . $Update->"installed-version");
+  :if ([ :typeof ($Update->"latest-version") ] != "nothing" && \
+       $Update->"installed-version" != $Update->"latest-version") do={
+    :set Info ($Info . "\n" . \
+      "  Available:    " . $Update->"latest-version");
+  }
+  :set Info ($Info . "\n" . \
+      "RouterOS-Scripts Configuration Version:\n" . \
+      "  Current:      " . $GlobalConfigVersion);
+  :if ($GlobalConfigVersion != $ExpectedConfigVersion) do={
+    :set Info ($Info . "\n" . \
+      "  Expected:     " . $ExpectedConfigVersion);
+  }
+
+  :return $Info;
+}
+
+# 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 WaitForFile;
+
+  :if ([ :len $PkgName ] = 0) do={ return false; }
+  :if ([ :len $PkgVer  ] = 0) do={ :set PkgVer  [ / system package update get installed-version ]; }
+  :if ([ :len $PkgArch ] = 0) do={ :set PkgArch [ / system resource get architecture-name ]; }
+
+  :local PkgFile ($PkgName . "-" . $PkgVer . "-" . $PkgArch . ".npk");
+  :if ($PkgArch = "x86_64") do={
+    :set PkgFile ($PkgName . "-" . $PkgVer . ".npk");
+  }
+  :local PkgDest [ $CleanFilePath ($PkgDir . "/" . $PkgFile) ];
+
+  $CertificateAvailable "Let's Encrypt Authority X3";
+
+  :local Retry 3;
+  :while ($Retry > 0) do={
+    :do {
+      / tool fetch check-certificate=yes-without-crl \
         ("https://upgrade.mikrotik.com/routeros/" . $PkgVer . "/" . $PkgFile) \
         dst-path=$PkgDest;
       $WaitForFile $PkgDest;
@@ -304,50 +238,75 @@
   :return false;
 }
 
-# lock script against multiple invocation
-:set ScriptLock do={
-  :global LogPrintExit;
+# get MAC vendor
+:set GetMacVendor do={
+  :local Mac [ :tostr $1 ];
 
-  :local Script [ :tostr $1 ];
+  :global CertificateAvailable;
 
-  :if ([ / system script job print count-only where script=$Script ] > 1) do={
-    $LogPrintExit info ("Script " . $Script . " started more than once... Aborting.") true;
+  :do {
+    :local Vendor;
+    $CertificateAvailable "Let's Encrypt Authority X3";
+    :set 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={
+    :return "unknown vendor";
   }
 }
 
-# check if script is run from terminal
-:set ScriptFromTerminal do={
-  :local Script [ :tostr $1 ];
+# generate random number
+# Warning: This is a *very* weak algorithm and in *no way*
+# useful for cryptography or similar!
+:set GetRandom do={
+  :local Max ([ :tonum $1 ] + 1);
+  :local Sum 0;
 
-  :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={
-      :log debug ("Script " . $Script . " started from terminal.");
-      :return true;
-    }
+  :foreach Interface in=[ /interface find ] do={
+    :set Sum ($Sum + [ /interface get $Interface tx-byte ]);
   }
-
-  :return false;
+  :return ($Sum % $Max);
 }
 
-# wait for file to be available
-:set WaitForFile do={
-  :global CleanFilePath;
+# log and print with same text, optionally exit
+:set LogPrintExit do={
+  :local Severity [ :tostr $1 ];
+  :local Message  [ :tostr $2 ];
+  :local Exit     [ :tostr $3 ];
 
-  :local FileName [ $CleanFilePath [ :tostr $1 ] ];
-  :local I 0;
+  :if ($Severity ~ "^(error|info)\$") do={
+    :if ($Severity = "error" ) do={ :log error $Message; }
+    :if ($Severity = "info"  ) do={ :log info  $Message; }
+  } else={
+    :log warning $Message;
+  }
 
-  :while ([ file print count-only where name=$FileName ] = 0) do={
-    :if ($I > 20) do={
-      :return false;
+  :if ($Exit = "true") do={
+    :error ($Severity . ": " . $Message);
+  } else={
+    :put ($Severity . ": " . $Message);
+  }
+}
+
+# check if mail server is up
+:set MailServerIsUp do={
+  :local MailServer [ / tool e-mail get address ];
+  :local MailHost $MailServer;
+
+  :if ([ / tool netwatch print count-only where comment=$MailServer ] = 0) do={
+    :log warn ("Adding netwatch entry for mail server.");
+    :local MailHost $MailServer;
+    :if ([ :typeof [ :toip $MailHost ] ] != "ip" ) do={
+      :set MailHost [ :resolve $MailServer ];
     }
-    :delay 100ms;
-    :set I ($I + 1);
+    / tool netwatch add comment=$MailServer host=[ :resolve $MailServer ];
   }
-  :return true;
+
+  :if ([ / tool netwatch get [ find where comment=$MailServer ] status ] = "up") do={
+    :return true;
+  }
+
+  :return false;
 }
 
 # parse key value store
@@ -366,19 +325,6 @@
   :return $Result;
 }
 
-# generate random number
-# Warning: This is a *very* weak algorithm and in *no way*
-# useful for cryptography or similar!
-:set GetRandom do={
-  :local Max ([ :tonum $1 ] + 1);
-  :local Sum 0;
-
-  :foreach Interface in=[ /interface find ] do={
-    :set Sum ($Sum + [ /interface get $Interface tx-byte ]);
-  }
-  :return ($Sum % $Max);
-}
-
 # delay a random amount of seconds
 :set RandomDelay do={
   :global GetRandom;
@@ -386,47 +332,22 @@
   :delay ([ $GetRandom $1 ] . "s");
 }
 
-# get readable device info
-:set DeviceInfo do={
-  :global ExpectedConfigVersion;
-  :global GlobalConfigVersion;
-  :global Identity;
-
-  :local Resource [ / system resource get ];
-  :local RouterBoard [ / system routerboard get ];
-  :local Update [ / system package update get ];
+# check if script is run from terminal
+:set ScriptFromTerminal do={
+  :local Script [ :tostr $1 ];
 
-  :local Info ( \
-    "Hostname:       " . $Identity . "\n" . \
-    "Board name:     " . $Resource->"board-name" . "\n" . \
-    "Architecture:   " . $Resource->"architecture-name");
-  :if ($RouterBoard->"routerboard" = true) do={
-    :local Revision "";
-    :if ([ :len ($RouterBoard->"revision") ] > 0) do={
-      :set Revision (" " . $RouterBoard->"revision");
+  :foreach Job in=[ / system script job find where script=$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={
+      :log debug ("Script " . $Script . " started from terminal.");
+      :return true;
     }
-    :set Info ($Info . "\n" . \
-      "Model:          " . $RouterBoard->"model" . $Revision . "\n" . \
-      "Serial number:  " . $RouterBoard->"serial-number");
-  }
-  :set Info ($Info . "\n" . \
-    "RouterOS:\n" . \
-    "  Channel:      " . $Update->"channel" . "\n" . \
-    "  Installed:    " . $Update->"installed-version");
-  :if ([ :typeof ($Update->"latest-version") ] != "nothing" && \
-       $Update->"installed-version" != $Update->"latest-version") do={
-    :set Info ($Info . "\n" . \
-      "  Available:    " . $Update->"latest-version");
-  }
-  :set Info ($Info . "\n" . \
-      "RouterOS-Scripts Configuration Version:\n" . \
-      "  Current:      " . $GlobalConfigVersion);
-  :if ($GlobalConfigVersion != $ExpectedConfigVersion) do={
-    :set Info ($Info . "\n" . \
-      "  Expected:     " . $ExpectedConfigVersion);
   }
 
-  :return $Info;
+  :return false;
 }
 
 # install new scripts, update existing scripts
@@ -442,25 +363,81 @@
   / system script run script-updates;
 }
 
-# check if mail server is up
-:set MailServerIsUp do={
-  :local MailServer [ / tool e-mail get address ];
-  :local MailHost $MailServer;
+# lock script against multiple invocation
+:set ScriptLock do={
+  :global LogPrintExit;
 
-  :if ([ / tool netwatch print count-only where comment=$MailServer ] = 0) do={
-    :log warn ("Adding netwatch entry for mail server.");
-    :local MailHost $MailServer;
-    :if ([ :typeof [ :toip $MailHost ] ] != "ip" ) do={
-      :set MailHost [ :resolve $MailServer ];
-    }
-    / tool netwatch add comment=$MailServer host=[ :resolve $MailServer ];
+  :local Script [ :tostr $1 ];
+
+  :if ([ / system script job print count-only where script=$Script ] > 1) do={
+    $LogPrintExit info ("Script " . $Script . " started more than once... Aborting.") true;
   }
+}
 
-  :if ([ / tool netwatch get [ find where comment=$MailServer ] status ] = "up") do={
-    :return true;
+# send notification via e-mail
+:set SendEMail do={
+  :local Subject [ :tostr $1 ];
+  :local Message [ :tostr $2 ];
+  :local Attach  [ :tostr $3 ];
+
+  :global Identity;
+  :global EmailGeneralTo;
+  :global EmailGeneralCc;
+
+  :if ([ :len $EmailGeneralTo ] > 0) do={
+    :do {
+      :local Signature [ / system note get note ];
+      :if ([ :len $Signature ] > 0) do={
+        :set Signature ("\n-- \n" . $Signature);
+      }
+      / tool e-mail send to=$EmailGeneralTo cc=$EmailGeneralCc \
+        subject=("[" . $Identity . "] " . $Subject) \
+        body=($Message . $Signature) file=$Attach;
+    } on-error={
+      :log warning "Failed sending notification mail!";
+    }
   }
+}
 
-  :return false;
+# send notification via e-mail and telegram
+# Note that attachment is ignored for telegram, silent is ignored for e-mail!
+:set SendNotification do={
+  :local Subject [ :tostr $1 ];
+  :local Message [ :tostr $2 ];
+  :local Attach  [ :tostr $3 ];
+  :local Silent  [ :tostr $4 ];
+
+  :global SendEMail;
+  :global SendTelegram;
+
+  $SendEMail $Subject $Message $Attach;
+  $SendTelegram $Subject $Message $Silent;
+}
+
+# send notification via telegram
+:set SendTelegram do={
+  :local Subject [ :tostr $1 ];
+  :local Message [ :tostr $2 ];
+  :local Silent  [ :tostr $3 ];
+
+  :global Identity;
+  :global TelegramTokenId;
+  :global TelegramChatId;
+
+  :global UrlEncode;
+  :global CertificateAvailable;
+
+  :if ([ :len $TelegramTokenId ] > 0 && [ :len $TelegramChatId ] > 0) do={
+    $CertificateAvailable "Go Daddy Secure Certificate Authority - G2";
+    :do {
+      / tool fetch check-certificate=yes-without-crl output=none http-method=post \
+        ("https://api.telegram.org/bot" . $TelegramTokenId . "/sendMessage") \
+        http-data=("chat_id=" . $TelegramChatId . "&disable_notification=" . $Silent . \
+        "&text=" . [ $UrlEncode ("[" . $Identity . "] " . $Subject . "\n\n" . $Message) ]);
+    } on-error={
+      :log warning "Failed sending telegram notification!";
+    }
+  }
 }
 
 # check if system time is sync
@@ -478,6 +455,48 @@
   :return false;
 }
 
+# url encoding
+:set UrlEncode do={
+  :local Input [ :tostr $1 ];
+  :local Return "";
+
+  :if ([ :len $Input ] > 0) do={
+    :local Chars " !\"#\$%&'()*+,:;<=>\?@[\\]^`{|}~";
+    :local Subs { "%20"; "%21"; "%22"; "%23"; "%24"; "%25"; "%26"; "%27"; "%28"; "%29";
+                  "%2A"; "%2B"; "%2C"; "%3A"; "%3B"; "%3C"; "%3D"; "%3E"; "%3F"; "%40";
+                  "%5B"; "%5C"; "%5D"; "%5E"; "%60"; "%7B"; "%7C"; "%7D"; "%7E" };
+
+    :for I from=0 to=([ :len $Input ] - 1) do={
+      :local Char [ :pick $Input $I ];
+      :local Replace [ :find $Chars $Char ];
+
+      :if ([ :len $Replace ] > 0) do={
+        :set Char ($Subs->$Replace);
+      }
+      :set Return ($Return . $Char);
+    }
+  }
+
+  :return $Return;
+}
+
+# wait for file to be available
+:set WaitForFile do={
+  :global CleanFilePath;
+
+  :local FileName [ $CleanFilePath [ :tostr $1 ] ];
+  :local I 0;
+
+  :while ([ file print count-only where name=$FileName ] = 0) do={
+    :if ($I > 20) do={
+      :return false;
+    }
+    :delay 100ms;
+    :set I ($I + 1);
+  }
+  :return true;
+}
+
 # wait for time to become synced
 :set WaitTimeSync do={
   :global TimeIsSync;
@@ -490,23 +509,3 @@
     :delay 1s;
   }
 }
-
-# log and print with same text, optionally exit
-:set LogPrintExit do={
-  :local Severity [ :tostr $1 ];
-  :local Message  [ :tostr $2 ];
-  :local Exit     [ :tostr $3 ];
-
-  :if ($Severity ~ "^(error|info)\$") do={
-    :if ($Severity = "error" ) do={ :log error $Message; }
-    :if ($Severity = "info"  ) do={ :log info  $Message; }
-  } else={
-    :log warning $Message;
-  }
-
-  :if ($Exit = "true") do={
-    :error ($Severity . ": " . $Message);
-  } else={
-    :put ($Severity . ": " . $Message);
-  }
-}
diff --git a/gps-track b/gps-track
index 3b944b3..2513e03 100644
--- a/gps-track
+++ b/gps-track
@@ -4,8 +4,8 @@
 #
 # track gps data by sending json data to http server
 
-:global Identity;
 :global GpsTrackUrl;
+:global Identity;
 
 :local CoordinateFormat [ /system gps get coordinate-format ];
 :local Gps [ / system gps monitor once as-value ];
diff --git a/ipv6-update b/ipv6-update
index 7621082..baea7c3 100644
--- a/ipv6-update
+++ b/ipv6-update
@@ -6,8 +6,8 @@
 
 :local PdPrefix $"pd-prefix";
 
-:global ParseKeyValueStore;
 :global LogPrintExit;
+:global ParseKeyValueStore;
 
 :if ([ :typeof $PdPrefix ] = "nothing") do={
   $LogPrintExit error "This script is supposed to run from ipv6 dhcp-client." true;
diff --git a/packages-update b/packages-update
index b364b18..5baa78b 100644
--- a/packages-update
+++ b/packages-update
@@ -5,9 +5,9 @@
 # download packages and reboot for installation
 
 :global DownloadPackage;
+:global LogPrintExit;
 :global ScriptFromTerminal;
 :global ScriptLock;
-:global LogPrintExit;
 
 $ScriptLock "packages-update";
 
diff --git a/script-updates b/script-updates
index 2cdc703..b84fcbf 100644
--- a/script-updates
+++ b/script-updates
@@ -8,14 +8,14 @@
 :global GlobalConfigVersion;
 :global Identity;
 :global IDonate;
-:global SentConfigChangesNotification;
-:global ScriptUpdatesFetch;
 :global ScriptUpdatesBaseUrl;
-:global ScriptUpdatesUrlSuffix;
+:global ScriptUpdatesFetch;
 :global ScriptUpdatesIgnore;
+:global ScriptUpdatesUrlSuffix;
+:global SentConfigChangesNotification;
 
-:global SendNotification;
 :global LogPrintExit;
+:global SendNotification;
 
 :foreach Script in=[ / system script find where source~"^#!rsc" ] do={
   :local Ignore 0;
diff --git a/sms-forward b/sms-forward
index e84cfea..2ace48d 100644
--- a/sms-forward
+++ b/sms-forward
@@ -6,9 +6,9 @@
 
 :global Identity;
 
-:global SendNotification;
-:global MailServerIsUp;
 :global LogPrintExit;
+:global MailServerIsUp;
+:global SendNotification;
 
 # check mail server
 :if ($MailServerIsUp = false) do={
diff --git a/update-tunnelbroker b/update-tunnelbroker
index bd36439..3aed610 100644
--- a/update-tunnelbroker
+++ b/update-tunnelbroker
@@ -4,8 +4,8 @@
 #                         Michael Gisbers <michael@gisbers.de>
 
 :global CertificateAvailable;
-:global ParseKeyValueStore;
 :global LogPrintExit;
+:global ParseKeyValueStore;
 
 :if ([ / ip cloud get ddns-enabled ] != true) do={
   $LogPrintExit error "IP cloud DDNS is not enabled." true;
diff --git a/upload-backup b/upload-backup
index fb9f9cd..16c6bd8 100644
--- a/upload-backup
+++ b/upload-backup
@@ -4,19 +4,19 @@
 #
 # create and upload backup and config file
 
-:global Identity;
-:global Domain;
-:global BackupUploadUrl;
-:global BackupUploadUser;
-:global BackupUploadPass;
+:global BackupPassword;
 :global BackupSendBinary;
 :global BackupSendExport;
-:global BackupPassword;
+:global BackupUploadPass;
+:global BackupUploadUrl;
+:global BackupUploadUser;
+:global Domain;
+:global Identity;
 
 :global CharacterReplace;
 :global DeviceInfo;
-:global SendNotification;
 :global LogPrintExit;
+:global SendNotification;
 
 :if ($BackupSendBinary != true && \
      $BackupSendExport != true) do={
-- 
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