added require_invoice_key

clean up

lnbits/decorators.py

@@ -171,6 +171,24 @@ async def require_admin_key(
     else:
         return wallet
 
+async def require_invoice_key(
+    r: Request,
+    api_key_header: str = Security(api_key_header),
+    api_key_query: str = Security(api_key_query),
+):
+    token = api_key_header if api_key_header else api_key_query
+
+    wallet = await get_key_type(r, token)
+
+    if wallet.wallet_type > 1:
+        # If wallet type is not invoice then return the unauthorized status
+        # This also covers when the user passes an invalid key type
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED, detail="Invoice (or Admin) key required."
+        )
+    else:
+        return wallet
+
 
 async def check_user_exists(usr: UUID4) -> User:
     g().user = await get_user(usr.hex)