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https://github.com/eworm-de/routeros-scripts
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telegram-chat: move code into function
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@ -8,160 +8,165 @@
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# use Telegram to chat with your Router and send commands
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# https://git.eworm.de/cgit/routeros-scripts/about/doc/telegram-chat.md
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:local 0 [ :jobname ];
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:global GlobalFunctionsReady;
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:while ($GlobalFunctionsReady != true) do={ :delay 500ms; }
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:global Identity;
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:global TelegramChatActive;
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:global TelegramChatGroups;
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:global TelegramChatId;
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:global TelegramChatIdsTrusted;
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:global TelegramChatOffset;
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:global TelegramChatRunTime;
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:global TelegramMessageIDs;
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:global TelegramRandomDelay;
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:global TelegramTokenId;
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:local Main do={
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:local ScriptName [ :tostr $1 ];
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:global CertificateAvailable;
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:global EitherOr;
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:global EscapeForRegEx;
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:global GetRandom20CharAlNum;
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:global IfThenElse;
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:global LogPrintExit2;
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:global MAX;
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:global MIN;
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:global MkDir;
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:global ParseJson;
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:global RandomDelay;
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:global ScriptLock;
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:global SendTelegram2;
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:global SymbolForNotification;
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:global ValidateSyntax;
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:global WaitForFile;
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:global WaitFullyConnected;
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:global Identity;
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:global TelegramChatActive;
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:global TelegramChatGroups;
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:global TelegramChatId;
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:global TelegramChatIdsTrusted;
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:global TelegramChatOffset;
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:global TelegramChatRunTime;
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:global TelegramMessageIDs;
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:global TelegramRandomDelay;
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:global TelegramTokenId;
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$ScriptLock $0;
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:global CertificateAvailable;
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:global EitherOr;
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:global EscapeForRegEx;
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:global GetRandom20CharAlNum;
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:global IfThenElse;
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:global LogPrintExit2;
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:global MAX;
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:global MIN;
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:global MkDir;
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:global ParseJson;
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:global RandomDelay;
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:global ScriptLock;
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:global SendTelegram2;
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:global SymbolForNotification;
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:global ValidateSyntax;
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:global WaitForFile;
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:global WaitFullyConnected;
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$WaitFullyConnected;
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$ScriptLock $ScriptName;
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:if ([ :typeof $TelegramChatOffset ] != "array") do={
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:set TelegramChatOffset { 0; 0; 0 };
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}
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:if ([ :typeof $TelegramRandomDelay ] != "num") do={
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:set TelegramRandomDelay 0;
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}
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$WaitFullyConnected;
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:if ([ $CertificateAvailable "Go Daddy Secure Certificate Authority - G2" ] = false) do={
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$LogPrintExit2 warning $0 ("Downloading required certificate failed.") true;
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}
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:if ([ :typeof $TelegramChatOffset ] != "array") do={
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:set TelegramChatOffset { 0; 0; 0 };
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}
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:if ([ :typeof $TelegramRandomDelay ] != "num") do={
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:set TelegramRandomDelay 0;
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}
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$RandomDelay $TelegramRandomDelay;
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:if ([ $CertificateAvailable "Go Daddy Secure Certificate Authority - G2" ] = false) do={
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$LogPrintExit2 warning $ScriptName ("Downloading required certificate failed.") true;
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}
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:local Data false;
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:for I from=1 to=4 do={
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:if ($Data = false) do={
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:do {
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:set Data ([ /tool/fetch check-certificate=yes-without-crl output=user \
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("https://api.telegram.org/bot" . $TelegramTokenId . "/getUpdates?offset=" . \
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$TelegramChatOffset->0 . "&allowed_updates=%5B%22message%22%5D") as-value ]->"data");
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:set TelegramRandomDelay [ $MAX 0 ($TelegramRandomDelay - 1) ];
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} on-error={
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:if ($I < 4) do={
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$LogPrintExit2 debug $0 ("Fetch failed, " . $I . ". try.") false;
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:set TelegramRandomDelay [ $MIN 15 ($TelegramRandomDelay + 5) ];
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:delay (($I * $I) . "s");
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$RandomDelay $TelegramRandomDelay;
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:local Data false;
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:for I from=1 to=4 do={
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:if ($Data = false) do={
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:do {
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:set Data ([ /tool/fetch check-certificate=yes-without-crl output=user \
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("https://api.telegram.org/bot" . $TelegramTokenId . "/getUpdates?offset=" . \
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$TelegramChatOffset->0 . "&allowed_updates=%5B%22message%22%5D") as-value ]->"data");
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:set TelegramRandomDelay [ $MAX 0 ($TelegramRandomDelay - 1) ];
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} on-error={
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:if ($I < 4) do={
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$LogPrintExit2 debug $ScriptName ("Fetch failed, " . $I . ". try.") false;
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:set TelegramRandomDelay [ $MIN 15 ($TelegramRandomDelay + 5) ];
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:delay (($I * $I) . "s");
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}
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}
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}
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}
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}
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:if ($Data = false) do={
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$LogPrintExit2 warning $0 ("Failed getting updates from Telegram.") true;
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}
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:if ($Data = false) do={
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$LogPrintExit2 warning $ScriptName ("Failed getting updates from Telegram.") true;
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}
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:local UpdateID 0;
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:local Uptime [ /system/resource/get uptime ];
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:foreach UpdateArray in=([ $ParseJson $Data ]->"result") do={
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:local Update [ $ParseJson $UpdateArray ];
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:set UpdateID ($Update->"update_id");
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:local Message [ $ParseJson ($Update->"message") ];
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:local IsReply [ :len ($Message->"reply_to_message") ];
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:local IsMyReply ($TelegramMessageIDs->([ $ParseJson ($Message->"reply_to_message") ]->"message_id"));
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:if (($IsMyReply = 1 || $TelegramChatOffset->0 > 0 || $Uptime > 5m) && $UpdateID >= $TelegramChatOffset->2) do={
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:local Trusted false;
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:local Chat [ $ParseJson ($Message->"chat") ];
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:local From [ $ParseJson ($Message->"from") ];
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:local UpdateID 0;
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:local Uptime [ /system/resource/get uptime ];
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:foreach UpdateArray in=([ $ParseJson $Data ]->"result") do={
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:local Update [ $ParseJson $UpdateArray ];
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:set UpdateID ($Update->"update_id");
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:local Message [ $ParseJson ($Update->"message") ];
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:local IsReply [ :len ($Message->"reply_to_message") ];
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:local IsMyReply ($TelegramMessageIDs->([ $ParseJson ($Message->"reply_to_message") ]->"message_id"));
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:if (($IsMyReply = 1 || $TelegramChatOffset->0 > 0 || $Uptime > 5m) && $UpdateID >= $TelegramChatOffset->2) do={
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:local Trusted false;
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:local Chat [ $ParseJson ($Message->"chat") ];
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:local From [ $ParseJson ($Message->"from") ];
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:foreach IdsTrusted in=($TelegramChatId, $TelegramChatIdsTrusted) do={
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:if ($From->"id" = $IdsTrusted || $From->"username" = $IdsTrusted) do={
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:set Trusted true;
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}
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}
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:if ($Trusted = true) do={
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:local Done false;
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:if ($Message->"text" = "?") do={
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$LogPrintExit2 info $0 ("Sending notice for update " . $UpdateID . ".") false;
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$SendTelegram2 ({ origin=$0; chatid=($Chat->"id"); silent=true; replyto=($Message->"message_id"); \
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subject=([ $SymbolForNotification "speech-balloon" ] . "Telegram Chat"); \
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message=("Online, awaiting your commands!") });
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:set Done true;
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}
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:if ($Done = false && [ :pick ($Message->"text") 0 1 ] = "!") do={
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:if ($Message->"text" ~ ("^! *(" . [ $EscapeForRegEx $Identity ] . "|@" . $TelegramChatGroups . ")\$")) do={
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:set TelegramChatActive true;
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} else={
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:set TelegramChatActive false;
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:foreach IdsTrusted in=($TelegramChatId, $TelegramChatIdsTrusted) do={
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:if ($From->"id" = $IdsTrusted || $From->"username" = $IdsTrusted) do={
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:set Trusted true;
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}
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$LogPrintExit2 info $0 ("Now " . [ $IfThenElse $TelegramChatActive "active" "passive" ] . \
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" from update " . $UpdateID . "!") false;
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:set Done true;
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}
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:if ($Done = false && ($IsMyReply = 1 || ($IsReply = 0 && $TelegramChatActive = true)) && [ :len ($Message->"text") ] > 0) do={
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:if ([ $ValidateSyntax ($Message->"text") ] = true) do={
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:local State "";
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:local File ("tmpfs/telegram-chat/" . [ $GetRandom20CharAlNum 6 ]);
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$MkDir "tmpfs/telegram-chat";
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$LogPrintExit2 info $0 ("Running command from update " . $UpdateID . ": " . $Message->"text") false;
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:execute script=(":do {\n" . $Message->"text" . "\n} on-error={ /file/add name=\"" . $File . ".failed\" };" . \
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"/file/add name=\"" . $File . ".done\"") file=($File . "\00");
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:if ([ $WaitForFile ($File . ".done") [ $EitherOr $TelegramChatRunTime 20s ] ] = false) do={
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:set State "The command did not finish, still running in background.\n\n";
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}
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:if ([ :len [ /file/find where name=($File . ".failed") ] ] > 0) do={
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:set State "The command failed with an error!\n\n";
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}
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:local Content [ /file/get $File contents ];
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$SendTelegram2 ({ origin=$0; chatid=($Chat->"id"); silent=true; replyto=($Message->"message_id"); \
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:if ($Trusted = true) do={
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:local Done false;
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:if ($Message->"text" = "?") do={
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$LogPrintExit2 info $ScriptName ("Sending notice for update " . $UpdateID . ".") false;
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$SendTelegram2 ({ origin=$ScriptName; chatid=($Chat->"id"); silent=true; replyto=($Message->"message_id"); \
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subject=([ $SymbolForNotification "speech-balloon" ] . "Telegram Chat"); \
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message=("Command:\n" . $Message->"text" . "\n\n" . $State . [ $IfThenElse ([ :len $Content ] > 0) \
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("Output:\n" . $Content) [ $IfThenElse ([ /file/get $File size ] > 0) \
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("Output exceeds file read size.") ("No output.") ] ]) });
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/file/remove "tmpfs/telegram-chat";
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message=("Online, awaiting your commands!") });
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:set Done true;
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}
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:if ($Done = false && [ :pick ($Message->"text") 0 1 ] = "!") do={
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:if ($Message->"text" ~ ("^! *(" . [ $EscapeForRegEx $Identity ] . "|@" . $TelegramChatGroups . ")\$")) do={
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:set TelegramChatActive true;
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} else={
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:set TelegramChatActive false;
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}
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$LogPrintExit2 info $ScriptName ("Now " . [ $IfThenElse $TelegramChatActive "active" "passive" ] . \
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" from update " . $UpdateID . "!") false;
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:set Done true;
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}
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:if ($Done = false && ($IsMyReply = 1 || ($IsReply = 0 && $TelegramChatActive = true)) && [ :len ($Message->"text") ] > 0) do={
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:if ([ $ValidateSyntax ($Message->"text") ] = true) do={
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:local State "";
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:local File ("tmpfs/telegram-chat/" . [ $GetRandom20CharAlNum 6 ]);
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$MkDir "tmpfs/telegram-chat";
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$LogPrintExit2 info $ScriptName ("Running command from update " . $UpdateID . ": " . $Message->"text") false;
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:execute script=(":do {\n" . $Message->"text" . "\n} on-error={ /file/add name=\"" . $File . ".failed\" };" . \
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"/file/add name=\"" . $File . ".done\"") file=($File . "\00");
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:if ([ $WaitForFile ($File . ".done") [ $EitherOr $TelegramChatRunTime 20s ] ] = false) do={
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:set State "The command did not finish, still running in background.\n\n";
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}
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:if ([ :len [ /file/find where name=($File . ".failed") ] ] > 0) do={
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:set State "The command failed with an error!\n\n";
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}
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:local Content [ /file/get $File contents ];
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$SendTelegram2 ({ origin=$ScriptName; chatid=($Chat->"id"); silent=true; replyto=($Message->"message_id"); \
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subject=([ $SymbolForNotification "speech-balloon" ] . "Telegram Chat"); \
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message=("Command:\n" . $Message->"text" . "\n\n" . $State . [ $IfThenElse ([ :len $Content ] > 0) \
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("Output:\n" . $Content) [ $IfThenElse ([ /file/get $File size ] > 0) \
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("Output exceeds file read size.") ("No output.") ] ]) });
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/file/remove "tmpfs/telegram-chat";
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} else={
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$LogPrintExit2 info $ScriptName ("The command from update " . $UpdateID . " failed syntax validation!") false;
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$SendTelegram2 ({ origin=$ScriptName; chatid=($Chat->"id"); silent=false; replyto=($Message->"message_id"); \
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subject=([ $SymbolForNotification "speech-balloon" ] . "Telegram Chat"); \
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message=("Command:\n" . $Message->"text" . "\n\nThe command failed syntax validation!") });
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}
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}
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} else={
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:local MessageText ("Received a message from untrusted contact " . \
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[ $IfThenElse ([ :len ($From->"username") ] = 0) "without username" ("'" . $From->"username" . "'") ] . \
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" (ID " . $From->"id" . ") in update " . $UpdateID . "!");
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:if ($Message->"text" ~ ("^! *" . [ $EscapeForRegEx $Identity ] . "\$")) do={
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$LogPrintExit2 warning $ScriptName $MessageText false;
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$SendTelegram2 ({ origin=$ScriptName; chatid=($Chat->"id"); silent=false; replyto=($Message->"message_id"); \
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subject=([ $SymbolForNotification "speech-balloon" ] . "Telegram Chat"); \
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message=("You are not trusted.") });
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} else={
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$LogPrintExit2 info $0 ("The command from update " . $UpdateID . " failed syntax validation!") false;
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$SendTelegram2 ({ origin=$0; chatid=($Chat->"id"); silent=false; replyto=($Message->"message_id"); \
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subject=([ $SymbolForNotification "speech-balloon" ] . "Telegram Chat"); \
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message=("Command:\n" . $Message->"text" . "\n\nThe command failed syntax validation!") });
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$LogPrintExit2 info $ScriptName $MessageText false;
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}
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}
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} else={
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:local MessageText ("Received a message from untrusted contact " . \
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[ $IfThenElse ([ :len ($From->"username") ] = 0) "without username" ("'" . $From->"username" . "'") ] . \
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" (ID " . $From->"id" . ") in update " . $UpdateID . "!");
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:if ($Message->"text" ~ ("^! *" . [ $EscapeForRegEx $Identity ] . "\$")) do={
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$LogPrintExit2 warning $0 $MessageText false;
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$SendTelegram2 ({ origin=$0; chatid=($Chat->"id"); silent=false; replyto=($Message->"message_id"); \
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subject=([ $SymbolForNotification "speech-balloon" ] . "Telegram Chat"); \
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message=("You are not trusted.") });
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} else={
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$LogPrintExit2 info $0 $MessageText false;
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}
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$LogPrintExit2 debug $ScriptName ("Already handled update " . $UpdateID . ".") false;
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}
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} else={
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$LogPrintExit2 debug $0 ("Already handled update " . $UpdateID . ".") false;
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}
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:set TelegramChatOffset ([ :pick $TelegramChatOffset 1 3 ], \
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[ $IfThenElse ($UpdateID >= $TelegramChatOffset->2) ($UpdateID + 1) ($TelegramChatOffset->2) ]);
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}
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:set TelegramChatOffset ([ :pick $TelegramChatOffset 1 3 ], \
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[ $IfThenElse ($UpdateID >= $TelegramChatOffset->2) ($UpdateID + 1) ($TelegramChatOffset->2) ]);
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$Main [ :jobname ];
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