From ff6884f31328137fc7eb7191650a70e85f04f859 Mon Sep 17 00:00:00 2001
From: Alexey Shchepin <alexey@process-one.net>
Date: Wed, 3 Jul 2019 05:32:58 +0300
Subject: [PATCH] Read jwt_key from file

---
 src/ejabberd_options.erl | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/ejabberd_options.erl b/src/ejabberd_options.erl
index 2e061f1c4..b74dea045 100644
--- a/src/ejabberd_options.erl
+++ b/src/ejabberd_options.erl
@@ -409,7 +409,15 @@ opt_type(websocket_ping_interval) ->
 opt_type(websocket_timeout) ->
     econf:timeout(second);
 opt_type(jwt_key) ->
-    econf:binary().
+    econf:and_then(
+      econf:file(),
+      fun(Path) ->
+              case file:read_file(Path) of
+                  {ok, Binary} -> Binary;
+                  {error, Reason} ->
+                      econf:fail({jtw_key_error, Reason})
+              end
+      end).
 
 %% We only define the types of options that cannot be derived
 %% automatically by tools/opt_type.sh script