Add timeout for discord_notify.py invocation (#196)

Simple watchdog added after seeing the discord_notify.py program hang
and not return, which in its turn caused the entire container to stop
processing

rootfs/usr/share/plane-alert/plane-alert.sh

@@ -328,7 +328,7 @@ then
 		if [[ "${PA_DISCORD,,}" != "false" ]] && [[ -n "$PA_DISCORD_WEBHOOKS" ]] && [[ -n "$DISCORD_FEEDER_NAME" ]]
 		then
 			[[ "$LOGLEVEL" != "ERROR" ]] && echo "[$(date)][$APPNAME] PlaneAlert sending Discord notification" || true
-			python3 $PLANEALERTDIR/send-discord-alert.py "$line"
+			timeout 120 python3 $PLANEALERTDIR/send-discord-alert.py "$line"
 		fi
 
 		# Build the message field:
@@ -767,4 +767,4 @@ exec 3>&-
 
 #Finally, put the temp index into its place:
 mv -f "$TMPDIR"/plalert-index.tmp "$WEBDIR"/index.html
-[[ "$BASETIME" != "" ]] && echo "10f. $(bc -l <<< "$(date +%s.%2N) - $BASETIME")s -- plane-alert.sh: done building webpage, finished Plane-Alert" || true
+[[ "$BASETIME" != "" ]] && echo "10f. $(bc -l <<< "$(date +%s.%2N) - $BASETIME")s -- plane-alert.sh: done building webpage, finished Plane-Alert" || true

rootfs/usr/share/planefence/planefence_notify.sh

@@ -299,8 +299,8 @@ then
 			if [[ "${PF_DISCORD,,}" == "on" || "${PF_DISCORD,,}" == "true" ]] && [[ "x$PF_DISCORD_WEBHOOKS" != "x" ]] && [[ "x$DISCORD_FEEDER_NAME" != "x" ]]
 			then
 				LOG "Planefence sending Discord notification"
-      	        python3 "$PLANEFENCEDIR"/send-discord-alert.py "$CSVLINE" "$AIRLINE"
-            fi
+      	                        timeout 120 python3 "$PLANEFENCEDIR"/send-discord-alert.py "$CSVLINE" "$AIRLINE"
+                        fi
 
 			# log the message we will try to tweet or toot:
 			if [[ -n "$MASTODON_SERVER" ]] || [ "$TWEETON" == "yes" ]