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+#!rsc by RouterOS
+# RouterOS script: mod/notification-ntfy
+# Copyright (c) 2013-2023 Christian Hesse <mail@eworm.de>
+# https://git.eworm.de/cgit/routeros-scripts/about/COPYING.md
+#
+# send notifications via Ntfy (ntfy.sh)
+# https://git.eworm.de/cgit/routeros-scripts/about/doc/mod/notification-ntfy.md
+
+:global FlushNtfyQueue;
+:global NotificationFunctions;
+:global PurgeNtfyQueue;
+:global SendNtfy;
+:global SendNtfy2;
+
+# flush ntfy queue
+:set FlushNtfyQueue do={
+ :global NtfyQueue;
+ :global NtfyMessageIDs;
+
+ :global IsFullyConnected;
+ :global LogPrintExit2;
+
+ :if ([ $IsFullyConnected ] = false) do={
+ $LogPrintExit2 debug $0 ("System is not fully connected, not flushing.") false;
+ :return false;
+ }
+
+ :local AllDone true;
+ :local QueueLen [ :len $NtfyQueue ];
+
+ :if ([ :len [ /system/scheduler/find where name=$0 ] ] > 0 && $QueueLen = 0) do={
+ $LogPrintExit2 warning $0 ("Flushing Ntfy messages from scheduler, but queue is empty.") false;
+ }
+
+ :foreach Id,Message in=$NtfyQueue do={
+ :if ([ :typeof $Message ] = "array" ) do={
+ :do {
+ /tool/fetch check-certificate=yes-without-crl output=none http-method=post \
+ ($Message->"url") http-header-field=($Message->"headers") http-data=($Message->"text") as-value;
+ :set ($NtfyQueue->$Id);
+ } on-error={
+ $LogPrintExit2 debug $0 ("Sending queued Ntfy message failed.") false;
+ :set AllDone false;
+ }
+ }
+ }
+
+ :if ($AllDone = true && $QueueLen = [ :len $NtfyQueue ]) do={
+ /system/scheduler/remove [ find where name=$0 ];
+ :set NtfyQueue;
+ }
+}
+
+# send notification via ntfy - expects one array argument
+:set ($NotificationFunctions->"ntfy") do={
+ :local Notification $1;
+
+ :global Identity;
+ :global IdentityExtra;
+ :global NtfyQueue;
+ :global NtfyServer;
+ :global NtfyServerOverride;
+ :global NtfyTopic;
+ :global NtfyTopicOverride;
+
+ :global EitherOr;
+ :global IfThenElse;
+ :global LogPrintExit2;
+ :global SymbolForNotification;
+ :global UrlEncode;
+
+ :local Server [ $EitherOr ($NtfyServerOverride->($Notification->"origin")) $NtfyServer ];
+ :local Topic [ $EitherOr ($NtfyTopicOverride->($Notification->"origin")) $NtfyTopic ];
+
+ :if ([ :len $Topic ] = 0) do={
+ :return false;
+ }
+
+ :local Url ("https://" . $NtfyServer . "/" . [ $UrlEncode $NtfyTopic ]);
+ :local Headers ({ ("Priority: " . [ $IfThenElse ($Notification->"silent") "low" "default" ]); \
+ ("Title: " . "[" . $IdentityExtra . $Identity . "] " . ($Notification->"subject")) });
+ :local Text (($Notification->"message") . "\n");
+ :if ([ :len ($Notification->"link") ] > 0) do={
+ :set Text ($Text . "\n" . [ $SymbolForNotification "link" ] . ($Notification->"link"));
+ }
+
+ :do {
+ /tool/fetch check-certificate=yes-without-crl output=none http-method=post \
+ $Url http-header-field=$Headers http-data=$Text as-value;
+ } on-error={
+ $LogPrintExit2 info $0 ("Failed sending ntfy notification! Queuing...") false;
+
+ :if ([ :typeof $NtfyQueue ] = "nothing") do={
+ :set NtfyQueue ({});
+ }
+ :set Text ($Text . "\n" . [ $SymbolForNotification "alarm-clock" ] . \
+ "This message was queued since " . [ /system/clock/get date ] . " " . \
+ [ /system/clock/get time ] . " and may be obsolete.");
+ :set ($NtfyQueue->[ :len $NtfyQueue ]) { url=$Url; headers=$Headers; text=$Text };
+ :if ([ :len [ /system/scheduler/find where name="\$FlushNtfyQueue" ] ] = 0) do={
+ /system/scheduler/add name="\$FlushNtfyQueue" interval=1m start-time=startup \
+ on-event=(":global FlushNtfyQueue; \$FlushNtfyQueue;");
+ }
+ }
+}
+
+# purge the Ntfy queue
+:set PurgeNtfyQueue do={
+ :global NtfyQueue;
+
+ /system/scheduler/remove [ find where name="\$FlushNtfyQueue" ];
+ :set NtfyQueue;
+}
+
+# send notification via ntfy - expects at least two string arguments
+:set SendNtfy do={
+ :global SendNtfy2;
+
+ $SendNtfy2 ({ subject=$1; message=$2; link=$3; silent=$4 });
+}
+
+# send notification via ntfy - expects one array argument
+:set SendNtfy2 do={
+ :local Notification $1;
+
+ :global NotificationFunctions;
+
+ ($NotificationFunctions->"ntfy") ("\$NotificationFunctions->\"ntfy\"") $Notification;
+}