From b630edf8c7ce6b88ad90ba8f7b46a2a861fa7594 Mon Sep 17 00:00:00 2001
From: Paul Swartz <paul@paulswartz.net>
Date: Thu, 5 Oct 2023 10:32:30 -0400
Subject: [PATCH] fix(mqtt): store password as a 0-arity function to prevent
 logging

---
 apps/state_mediator/lib/state_mediator.ex               | 2 +-
 apps/state_mediator/lib/state_mediator/mqtt_mediator.ex | 8 +++++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/apps/state_mediator/lib/state_mediator.ex b/apps/state_mediator/lib/state_mediator.ex
index 6d2e5514..fc423252 100644
--- a/apps/state_mediator/lib/state_mediator.ex
+++ b/apps/state_mediator/lib/state_mediator.ex
@@ -88,7 +88,7 @@ defmodule StateMediator do
         url: broker,
         topic: app_value(State.Vehicle, :topic),
         username: app_value(State.Vehicle, :username),
-        password: app_value(State.Vehicle, :password),
+        password: fn -> app_value(State.Vehicle, :password) end,
         sync_timeout: 30_000
       ]
     }
diff --git a/apps/state_mediator/lib/state_mediator/mqtt_mediator.ex b/apps/state_mediator/lib/state_mediator/mqtt_mediator.ex
index 17278fd5..702aa807 100644
--- a/apps/state_mediator/lib/state_mediator/mqtt_mediator.ex
+++ b/apps/state_mediator/lib/state_mediator/mqtt_mediator.ex
@@ -79,8 +79,14 @@ defmodule StateMediator.MqttMediator do
   end
 
   defp configs_from_url(url, opts) do
-    password_opts =
+    password_value =
       case opts[:password] do
+        fun when is_function(fun, 0) -> fun.()
+        other -> other
+      end
+
+    password_opts =
+      case password_value do
         nil -> [[]]
         [""] -> [[]]
         passwords -> for password <- String.split(passwords, " "), do: [password: password]