#!rsc # RouterOS script: netwatch-notify # Copyright (c) 2020 Christian Hesse <mail@eworm.de> # https://git.eworm.de/cgit/routeros-scripts/about/COPYING.md # # monitor netwatch and send notifications # https://git.eworm.de/cgit/routeros-scripts/about/doc/netwatch-notify.md :global NetwatchNotify; :global IfThenElse; :global LogPrintExit; :global ParseKeyValueStore; :global SendNotification; :global SymbolForNotification; :if ([ :typeof $NetwatchNotify ] = "nothing") do={ :set NetwatchNotify [ :toarray "" ]; } :foreach Host in=[ / tool netwatch find where comment~"^notify," disabled=no ] do={ :local HostVal [ / tool netwatch get $Host ]; :local HostInfo [ $ParseKeyValueStore ($HostVal->"comment") ]; :local HostName ($HostInfo->"hostname"); :local Metric { "count"=0; "notified"=false }; :if ([ :typeof ($NetwatchNotify->$HostName) ] = "array") do={ :set $Metric ($NetwatchNotify->$HostName); } :if ($HostVal->"status" = "up") do={ $LogPrintExit debug ("Host " . $HostName . " (" . $HostVal->"host" . ") is up.") false; :local Count ($Metric->"count"); :set ($Metric->"count") 0; :if ($Metric->"notified" = true) do={ $SendNotification ([ $SymbolForNotification "white-heavy-check-mark" ] . "Netwatch Notify: " . $HostName . " up") \ ("Host " . $HostName . " (" . $HostVal->"host" . ") is up since " . $HostVal->"since" . ".\n" . \ "It was down for " . $Count . " checks since " . ($Metric->"since") . "."); :if ([ :typeof ($HostInfo->"up-hook") ] = "str") do={ $LogPrintExit info ("Running hook on host " . $HostName . " up: " . ($HostInfo->"up-hook")) false; [ :parse ($HostInfo->"up-hook") ]; } } :set ($Metric->"notified") false; :set ($Metric->"since"); } else={ :set ($Metric->"count") ($Metric->"count" + 1); :set ($Metric->"since") ($HostVal->"since"); $LogPrintExit info ("Host " . $HostName . " (" . $HostVal->"host" . ") is down for " . \ $Metric->"count" . " checks.") false; :if ($Metric->"count" >= [ $IfThenElse ([ :typeof ($HostVal->"count") ] != "nothing") ($HostVal->"count") 5 ] && \ $Metric->"notified" != true) do={ $SendNotification ([ $SymbolForNotification "cross-mark" ] . "Netwatch Notify: " . $HostName . " down") \ ("Host " . $HostName . " (" . $HostVal->"host" . ") is down since " . $HostVal->"since" . "."); :set ($Metric->"notified") true; :if ([ :typeof ($HostInfo->"down-hook") ] = "str") do={ $LogPrintExit info ("Running hook on host " . $HostName . " down: " . ($HostInfo->"down-hook")) false; [ :parse ($HostInfo->"down-hook") ]; } } } :set ($NetwatchNotify->$HostName) { "count"=($Metric->"count"); "notified"=($Metric->"notified"); "since"=($Metric->"since") }; }