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authorGravatar Christian Hesse <mail@eworm.de>2023-03-07 10:57:42 +0100
committerGravatar Christian Hesse <mail@eworm.de>2023-03-07 22:26:01 +0100
commita832fd04ef085ef7e85000843a8e8fa59ce36dfb (patch)
treec977ca4b5167d8aa07dbe6bfe15fca8f467db0d9 /netwatch-notify.rsc
parent1e6e0646e256c4acb9f8470853d0699286af010e (diff)
rename scripts and add file extension ".rsc"change-95
No functional change for the user... The migration is done automatically.
Diffstat (limited to 'netwatch-notify.rsc')
-rw-r--r--netwatch-notify.rsc186
1 files changed, 186 insertions, 0 deletions
diff --git a/netwatch-notify.rsc b/netwatch-notify.rsc
new file mode 100644
index 0000000..d04d23f
--- /dev/null
+++ b/netwatch-notify.rsc
@@ -0,0 +1,186 @@
+#!rsc by RouterOS
+# RouterOS script: netwatch-notify
+# Copyright (c) 2020-2023 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
+
+:local 0 "netwatch-notify";
+:global GlobalFunctionsReady;
+:while ($GlobalFunctionsReady != true) do={ :delay 500ms; }
+
+:global NetwatchNotify;
+
+:global EitherOr;
+:global IfThenElse;
+:global IsDNSResolving;
+:global LogPrintExit2;
+:global ParseKeyValueStore;
+:global ScriptFromTerminal;
+:global ScriptLock;
+:global SendNotification2;
+:global SymbolForNotification;
+
+:local NetwatchNotifyHook do={
+ :local Name [ :tostr $1 ];
+ :local Type [ :tostr $2 ];
+ :local State [ :tostr $3 ];
+ :local Hook [ :tostr $4 ];
+
+ :global LogPrintExit2;
+ :global ValidateSyntax;
+
+ :if ([ $ValidateSyntax $Hook ] = true) do={
+ :do {
+ [ :parse $Hook ];
+ } on-error={
+ $LogPrintExit2 warning $0 ("The " . $State . "-hook for " . $Type . " '" . $Name . \
+ "' failed to run.") false;
+ :return ("The hook failed to run.");
+ }
+ } else={
+ $LogPrintExit2 warning $0 ("The " . $State . "-hook for " . $Type . " '" . $Name . \
+ "' failed syntax validation.") false;
+ :return ("The hook failed syntax validation.");
+ }
+
+ $LogPrintExit2 info $0 ("Ran hook on " . $Type . " '" . $Name . "' " . $State . ": " . \
+ $Hook) false;
+ :return ("Ran hook:\n" . $Hook);
+}
+
+$ScriptLock $0;
+
+:local ScriptFromTerminalCached [ $ScriptFromTerminal $0 ];
+
+:if ([ /system/resource/get uptime ] < 5m) do={
+ $LogPrintExit2 info $0 ("System just booted, giving netwatch some time to settle.") true;
+}
+
+:if ([ :typeof $NetwatchNotify ] = "nothing") do={
+ :set NetwatchNotify ({});
+}
+
+:foreach Host in=[ /tool/netwatch/find where comment~"notify" !disabled ] do={
+ :local HostVal [ /tool/netwatch/get $Host ];
+ :local Type [ $IfThenElse ($HostVal->"type" ~ "^(https?-get|tcp-conn)\$") "service" "host" ];
+ :local HostInfo [ $ParseKeyValueStore ($HostVal->"comment") ];
+ :local HostDetails ($HostVal->"host" . \
+ [ $IfThenElse ([ :len ($HostInfo->"resolve") ] > 0) (", " . $HostInfo->"resolve") ]);
+
+ :if ($HostInfo->"notify" = true && $HostInfo->"disabled" != true) do={
+ :local Name [ $EitherOr ($HostInfo->"name") ($HostVal->"name") ];
+
+ :local Metric { "count-down"=0; "count-up"=0; "notified"=false; "resolve-failcnt"=0 };
+ :if ([ :typeof ($NetwatchNotify->$Name) ] = "array") do={
+ :set $Metric ($NetwatchNotify->$Name);
+ }
+
+ :if ([ :typeof ($HostInfo->"resolve") ] = "str") do={
+ :if ([ $IsDNSResolving ] = true) do={
+ :do {
+ :local Resolve [ :resolve ($HostInfo->"resolve") ];
+ :if ($Resolve != $HostVal->"host") do={
+ $LogPrintExit2 info $0 ("Name '" . $HostInfo->"resolve" . [ $IfThenElse \
+ ($HostInfo->"resolve" != $HostInfo->"name") ("' for " . $Type . " '" . \
+ $HostInfo->"name") "" ] . "' resolves to different address " . $Resolve . \
+ ", updating.") false;
+ /tool/netwatch/set host=$Resolve $Host;
+ :set ($Metric->"resolve-failcnt") 0;
+ }
+ } on-error={
+ :set ($Metric->"resolve-failcnt") ($Metric->"resolve-failcnt" + 1);
+ :if ($Metric->"resolve-failcnt" = 3) do={
+ $LogPrintExit2 warning $0 ("Resolving name '" . $HostInfo->"resolve" . [ $IfThenElse \
+ ($HostInfo->"resolve" != $HostInfo->"name") ("' for " . $Type . " '" . \
+ $HostInfo->"name") "" ] . "' failed.") false;
+ }
+ }
+ }
+ }
+
+ :if ($HostVal->"status" = "up") do={
+ :local CountDown ($Metric->"count-down");
+ :if ($CountDown > 0) do={
+ $LogPrintExit2 info $0 \
+ ("The " . $Type . " '" . $Name . "' (" . $HostDetails . ") is up.") false;
+ :set ($Metric->"count-down") 0;
+ }
+ :set ($Metric->"count-up") ($Metric->"count-up" + 1);
+ :if ($Metric->"notified" = true) do={
+ :local Message ("The " . $Type . " '" . $Name . "' (" . $HostDetails . \
+ ") is up since " . $HostVal->"since" . ".\n" . \
+ "It was down for " . $CountDown . " checks since " . ($Metric->"since") . ".");
+ :if ([ :typeof ($HostInfo->"up-hook") ] = "str") do={
+ :set Message ($Message . "\n\n" . [ $NetwatchNotifyHook $Name $Type "up" \
+ ($HostInfo->"up-hook") ]);
+ }
+ $SendNotification2 ({ origin=$0; silent=($HostInfo->"silent"); \
+ subject=([ $SymbolForNotification "white-heavy-check-mark" ] . "Netwatch Notify: " . \
+ $Name . " up"); \
+ message=$Message });
+ }
+ :set ($Metric->"notified") false;
+ :set ($Metric->"parent") ($HostInfo->"parent");
+ :set ($Metric->"since");
+ } else={
+ :set ($Metric->"count-down") ($Metric->"count-down" + 1);
+ :set ($Metric->"count-up") 0;
+ :set ($Metric->"parent") ($HostInfo->"parent");
+ :set ($Metric->"since") ($HostVal->"since");
+ :local CountDown [ $IfThenElse ([ :tonum ($HostInfo->"count") ] > 0) ($HostInfo->"count") 5 ];
+ :local Parent ($HostInfo->"parent");
+ :local ParentUp false;
+ :while ([ :len $Parent ] > 0) do={
+ :set CountDown ($CountDown + 1);
+ :set Parent ($NetwatchNotify->$Parent->"parent");
+ }
+ :set Parent ($HostInfo->"parent");
+ :local ParentNotified false;
+ :while ($ParentNotified = false && [ :len $Parent ] > 0) do={
+ :set ParentNotified [ $IfThenElse (($NetwatchNotify->$Parent->"notified") = true) \
+ true false ];
+ :set ParentUp ($NetwatchNotify->$Parent->"count-up");
+ :if ($ParentNotified = false) do={
+ :set Parent ($NetwatchNotify->$Parent->"parent");
+ }
+ }
+ :if ($Metric->"notified" = false || $Metric->"count-down" % 120 = 0 || \
+ $ScriptFromTerminalCached = true) do={
+ $LogPrintExit2 [ $IfThenElse ($HostInfo->"no-down-notification" != true) info debug ] $0 \
+ ("The " . $Type . " '" . $Name . "' (" . $HostDetails . ") is down for " . \
+ $Metric->"count-down" . " checks, " . [ $IfThenElse ($ParentNotified = false) [ $IfThenElse \
+ ($Metric->"notified" = true) ("already notified.") ($CountDown - $Metric->"count-down" . \
+ " to go.") ] ("parent " . $Type . " " . $Parent . " is down.") ]) false;
+ }
+ :if ((($CountDown * 2) - ($Metric->"count-down" * 3)) / 2 = 0 && \
+ [ :typeof ($HostInfo->"pre-down-hook") ] = "str") do={
+ $NetwatchNotifyHook $Name $Type "pre-down" ($HostInfo->"pre-down-hook");
+ }
+ :if ($ParentNotified = false && $Metric->"count-down" >= $CountDown && \
+ ($ParentUp = false || $ParentUp > 2) && $Metric->"notified" != true) do={
+ :local Message ("The " . $Type . " '" . $Name . "' (" . $HostDetails . \
+ ") is down since " . $HostVal->"since" . ".");
+ :if ([ :typeof ($HostInfo->"down-hook") ] = "str") do={
+ :set Message ($Message . "\n\n" . [ $NetwatchNotifyHook $Name $Type "down" \
+ ($HostInfo->"down-hook") ]);
+ }
+ :if ($HostInfo->"no-down-notification" != true) do={
+ $SendNotification2 ({ origin=$0; silent=($HostInfo->"silent"); \
+ subject=([ $SymbolForNotification "cross-mark" ] . "Netwatch Notify: " . \
+ $Name . " down"); \
+ message=$Message });
+ }
+ :set ($Metric->"notified") true;
+ }
+ }
+ :set ($NetwatchNotify->$Name) {
+ "count-down"=($Metric->"count-down");
+ "count-up"=($Metric->"count-up");
+ "notified"=($Metric->"notified");
+ "parent"=($Metric->"parent");
+ "resolve-failcnt"=($Metric->"resolve-failcnt");
+ "since"=($Metric->"since") };
+ }
+}