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#!rsc by RouterOS
# RouterOS script: mod/notification-matrix
# Copyright (c) 2013-2022 Michael Gisbers <michael@gisbers.de>
# Christian Hesse <mail@eworm.de>
# https://git.eworm.de/cgit/routeros-scripts/about/COPYING.md
:global FlushMatrixQueue;
:global NotificationFunctions;
:global SendMatrix;
:global SendMatrix2;
# flush Matrix queue
:set FlushMatrixQueue do={
:global MatrixQueue;
:global LogPrintExit2;
:local AllDone true;
:local QueueLen [ :len $MatrixQueue ];
:if ([ :len [ /system/scheduler/find where name="FlushMatrixQueue" ] ] > 0 && $QueueLen = 0) do={
$LogPrintExit2 warning $0 ("Flushing Matrix messages from scheduler, but queue is empty.") false;
}
:foreach Id,Message in=$MatrixQueue do={
:if ([ :typeof $Message ] = "array" ) do={
:do {
/tool/fetch check-certificate=yes-without-crl output=none http-method=post \
("https://" . $Message->"homeserver" . "/_matrix/client/r0/rooms/" . $Message->"room" . \
"/send/m.room.message?access_token=" . $Message->"accesstoken") \
http-data=("{ \"msgtype\": \"m.text\", \"body\": \"" . $Message->"plain" . "\"," . \
"\"format\": \"org.matrix.custom.html\", \"formatted_body\": \"" . \
$Message->"formatted" . "\" }") as-value;
:set ($MatrixQueue->$Id);
} on-error={
$LogPrintExit2 debug $0 ("Sending queued Matrix message failed.") false;
:set AllDone false;
}
}
}
:if ($AllDone = true && $QueueLen = [ :len $MatrixQueue ]) do={
/system/scheduler/remove [ find where name="FlushMatrixQueue" ];
:set MatrixQueue;
}
}
# send notification via Matrix - expects one array argument
:set ($NotificationFunctions->"matrix") do={
:local Notification $1;
:global Identity;
:global MatrixAccessToken;
:global MatrixAccessTokenOverride;
:global MatrixHomeServer;
:global MatrixHomeServerOverride;
:global MatrixQueue;
:global MatrixRoom;
:global MatrixRoomOverride;
:global EitherOr;
:global LogPrintExit2;
:global SymbolForNotification;
:local PrepareText do={
:local Input [ :tostr $1 ];
:if ([ :len $Input ] = 0) do={
:return "";
}
:local Return "";
:local Chars {
"plain"={ "\\"; "\""; "\n" };
"format"={ "\\"; "\""; "\n"; "&"; "<"; ">" };
}
:local Subs {
"plain"={ "\\\\"; "\\\""; "\\n" };
"format"={ "\\\\"; """; "<br/>"; "&"; "<"; ">" };
}
:for I from=0 to=([ :len $Input ] - 1) do={
:local Char [ :pick $Input $I ];
:local Replace [ :find ($Chars->$2) $Char ];
:if ([ :typeof $Replace ] = "num") do={
:set Char ($Subs->$2->$Replace);
}
:set Return ($Return . $Char);
}
:return $Return;
}
:local AccessToken [ $EitherOr ($MatrixAccessTokenOverride->($Notification->"origin")) $MatrixAccessToken ];
:local HomeServer [ $EitherOr ($MatrixHomeServerOverride->($Notification->"origin")) $MatrixHomeServer ];
:local Room [ $EitherOr ($MatrixRoomOverride->($Notification->"origin")) $MatrixRoom ];
:if ([ :len $AccessToken ] = 0 || [ :len $HomeServer ] = 0 || [ :len $Room ] = 0) do={
:return false;
}
:local Plain [ $PrepareText ("## [" . $Identity . "] " . ($Notification->"subject") . "\n```\n" . \
($Notification->"message") . "\n```") "plain" ];
:local Formatted ("<h2>" . [ $PrepareText ("[" . $Identity . "] " . ($Notification->"subject")) "format" ] . "</h2>" . \
"<pre><code>" . [ $PrepareText ($Notification->"message") "format" ] . "</code></pre>");
:if ([ :len ($Notification->"link") ] > 0) do={
:set Plain ($Plain . "\\n" . [ $SymbolForNotification "link" ] . \
[ $PrepareText ("[" . $Notification->"link" . "](" . $Notification->"link" . ")") "plain" ]);
:set Formatted ($Formatted . "<br/>" . [ $SymbolForNotification "link" ] . \
"<a href=\\\"" . [ $PrepareText ($Notification->"link") "format" ] . "\\\">" . \
[ $PrepareText ($Notification->"link") "format" ] . "</a>");
}
:do {
/tool/fetch check-certificate=yes-without-crl output=none http-method=post \
("https://" . $HomeServer . "/_matrix/client/r0/rooms/" . $Room . \
"/send/m.room.message?access_token=" . $AccessToken) \
http-data=("{ \"msgtype\": \"m.text\", \"body\": \"" . $Plain . "\"," . \
"\"format\": \"org.matrix.custom.html\", \"formatted_body\": \"" . \
$Formatted . "\" }") as-value;
} on-error={
$LogPrintExit2 info $0 ("Failed sending Matrix notification! Queuing...") false;
:if ([ :typeof $MatrixQueue ] = "nothing") do={
:set MatrixQueue [ :toarray "" ];
}
:local Text ([ $SymbolForNotification "alarm-clock" ] . \
"This message was queued since " . [ /system/clock/get date ] . \
" " . [ /system/clock/get time ] . " and may be obsolete.");
:set Plain ($Plain . "\\n" . $Text);
:set Formatted ($Formatted . "<br/>" . $Text);
:set ($MatrixQueue->[ :len $MatrixQueue ]) { room=$Room; \
accesstoken=$AccessToken; homeserver=$HomeServer; \
plain=$Plain; formatted=$Formatted };
:if ([ :len [ /system/scheduler/find where name="FlushMatrixQueue" ] ] = 0) do={
/system/scheduler/add name=FlushMatrixQueue interval=1m start-time=startup \
on-event=(":global FlushMatrixQueue; \$FlushMatrixQueue;");
}
}
}
# send notification via Matrix - expects at lease two string arguments
:set SendMatrix do={
:global SendMatrix2;
$SendMatrix2 ({ subject=$1; message=$2; link=$3 });
}
# send notification via Matrix - expects one array argument
:set SendMatrix2 do={
:local Notification $1;
:global NotificationFunctions;
($NotificationFunctions->"matrix") ("\$NotificationFunctions->\"matrix\"") $Notification;
}
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