From 449bd65cfbaede49d977ae5abe800f535c45c60b Mon Sep 17 00:00:00 2001
From: iabdalkader <i.abdalkader@gmail.com>
Date: Sat, 8 Oct 2022 19:18:18 +0200
Subject: [PATCH] ucloud: Load root CA file from DER for MicroPython.

* MicroPython now supports verifying root CA, passed as binary blob
in cadata.
---
 arduino_iot_cloud/ucloud.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arduino_iot_cloud/ucloud.py b/arduino_iot_cloud/ucloud.py
index e52514a..f025b51 100644
--- a/arduino_iot_cloud/ucloud.py
+++ b/arduino_iot_cloud/ucloud.py
@@ -195,8 +195,12 @@ def __init__(
         if "keyfile" in ssl_params and "der" in ssl_params["keyfile"]:
             with open(ssl_params.pop("keyfile"), "rb") as f:
                 ssl_params["key"] = f.read()
+        if "certfile" in ssl_params and "der" in ssl_params["certfile"]:
             with open(ssl_params.pop("certfile"), "rb") as f:
                 ssl_params["cert"] = f.read()
+        if "ca_certs" in ssl_params and "der" in ssl_params["ca_certs"]:
+            with open(ssl_params.pop("ca_certs"), "rb") as f:
+                ssl_params["cadata"] = f.read()
 
         # If no server/port were passed in args, set the default server/port
         # based on authentication type.