sms-forward: add workaround to fix removal of messagesrouteros-7.8

Removal of messages is broken in RouterOS 7.8:

[admin@MikroTik] > /tool/sms/inbox/remove [ find ]
failure: Interface not running!

Of course the interface is running. Toggling the auto-erase setting
fixes this until next boot. So let's add a workaround...

Reported to support (SUP-110828), but not (yet) acknowledged. 🤨

1 files changed, 10 insertions, 0 deletions

diff --git a/sms-forward.rsc b/sms-forward.rsc
index 802da48..74b1b31 100644
--- a/sms-forward.rsc
+++ b/sms-forward.rsc
@@ -13,9 +13,11 @@
 
 :global Identity;
 :global SmsForwardHooks;
+:global SmsForwardWorkaround;
 
 :global IfThenElse;
 :global LogPrintExit2;
+:global RequiredRouterOS;
 :global ScriptLock;
 :global SendNotification2;
 :global SymbolForNotification;
@@ -28,6 +30,14 @@ $ScriptLock $0;
   $LogPrintExit2 warning $0 ("Receiving of SMS is not enabled.") true;
 }
 
+:if ($SmsForwardWorkaround != true && \
+     [ $RequiredRouterOS $0 "7.8" false ] = true) do={
+  :local AutoErase [ /tool/sms/get auto-erase ];
+  /tool/sms/set auto-erase=(!$AutoErase);
+  /tool/sms/set auto-erase=$AutoErase;
+  :set SmsForwardWorkaround true;
+}
+
 $WaitFullyConnected;
 
 :local Settings [ /tool/sms/get ];