Add option to send welcome message upon acceptance

sample.config.yaml

@@ -52,6 +52,13 @@ vetting:
   # The bot must be in these rooms and have the invite permission
   additional_rooms: []
 
+# Messages to send to the vetting room (optional)
+# You can use the following variables:
+# {mention} = https://matrix.to/#/@user:exmaple.com
+message_on:
+  # Message to send once the invite has been confirmed
+  invited: "{mention}, you're in! 😎"
+
 # Logging setup
 logging:
   # Logging level

vetting_bot/callbacks.py

@@ -205,7 +205,7 @@ class Callbacks:
             if event.key == "confirm":
                 # Check which user the reaction is for (if any)
                 self.store.cursor.execute(
-                    "SELECT mxid FROM vetting WHERE decision_event_id = ?",
+                    "SELECT mxid, room_id FROM vetting WHERE decision_event_id = ?",
                     (event.reacts_to,),
                 )
                 row = self.store.cursor.fetchone()
@@ -213,6 +213,7 @@ class Callbacks:
                     return
 
                 user_id = row[0]
+                user_room_id = row[1]
 
                 # Invite user to main space
                 logger.info("Inviting new user (%s) to the main space.", user_id)
@@ -242,6 +243,18 @@ class Callbacks:
                     else:
                         logger.info("Invited %s to %s", user_id, room_id)
 
+                # Send message to vetting room notifying of the invite
+                if self.config.message_on_invited is not None:
+                    invited_message = self.config.message_on_invited.format(
+                        mention=f"https://matrix.to/#/{user_id}"
+                    )
+                    await send_text_to_room(
+                        self.client,
+                        user_room_id,
+                        invited_message,
+                        notice=False,
+                    )
+
     async def unknown(self, room: MatrixRoom, event: UnknownEvent) -> None:
         """Callback for when an event with a type that is unknown to matrix-nio is received.
 

vetting_bot/config.py

@@ -142,6 +142,10 @@ class Config:
             self._get_cfg(["vetting", "additional_rooms"], required=False, default=[])
         )
 
+        self.message_on_invited: str = self._get_cfg(
+            ["message_on", "invited"], required=False, default=None
+        )
+
     def _get_cfg(
         self,
         path: List[str],