Introduced stop signals and dependency gating for operations. Added mechanism to RMASS message sending protocol (Confirmed Working)

plugins/rmass/actions/rmassmessagepush.py

@@ -4,6 +4,12 @@ from . import synapsenotify
 
 name = "RMASS Message Push"
 
+alias = "rmassmessagepush"
+
+depends = [
+    "synapsegetroomalias",
+]
+
 kind = "action"
 
 showstatus = True
@@ -86,6 +92,12 @@ filters = [
         "filtervalue": "m.image",
         "print": f"Image detected. Pushing attachment",
     },
+    {
+        "filterkey": "event_id",
+        "operator": "==",
+        "filtervalue": {"outputs": "db_event_id"},
+        "print": f"Message already delivered. Bypassing {name}",
+    },
 #    {
 #        "filterkey": "matrix_sender",
 #        "operator": "!=",