Smartthings Integration: Unable to complete SmartApp install

[agrieco]

Home Assistant release with the issue:

0.102.3

Last working Home Assistant release (if known):
none

Operating environment (Hass.io/Docker/Windows/etc.):

hassio

Integration:

Samsung Smartthings

Description of problem:
I'm using my own SSL certs and base_url and attempting to get smartthings integration working.
I've created an access token, inserted it into the integration and see the SmartApp created on the classic version of the Smartthings app. When I go to install that app, I get the 'Something went wrong. Please try to install the SmartApp again' error message on my phone and a pysmartapp.errors.SignatureVerificationError (see below) error message as the webhook is called.

Problem-relevant configuration.yaml entries and (fill out even if it seems unimportant):

Traceback (if applicable):

2019-12-01 14:47:22 DEBUG (MainThread) [homeassistant.components.smartthings.smartapp] Created SmartApp 'homeassistant.dd542712-75fb-4dfe-a845-23e7614c3b2a
' (23d7d3f7-51cc-45ed-a291-648a7d7ddf22)
2019-12-01 14:47:22 DEBUG (MainThread) [homeassistant.components.smartthings.smartapp] Updated App Settings for SmartApp 'homeassistant.dd542712-75fb-4dfe-
a845-23e7614c3b2a' (23d7d3f7-51cc-45ed-a291-648a7d7ddf22)
2019-12-01 14:47:22 DEBUG (MainThread) [homeassistant.components.smartthings.smartapp] Updated App OAuth for SmartApp 'homeassistant.dd542712-75fb-4dfe-a84
5-23e7614c3b2a' (23d7d3f7-51cc-45ed-a291-648a7d7ddf22)
2019-12-01 14:47:40 ERROR (MainThread) [homeassistant.components.webhook] Error processing webhook <webhook removed for pasting>
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/components/webhook/__init__.py", line 77, in async_handle_webhook
    response = await webhook["handler"](hass, webhook_id, request)
  File "/usr/src/homeassistant/homeassistant/components/smartthings/smartapp.py", line 485, in smartapp_webhook
    result = await manager.handle_request(data, request.headers)
  File "/usr/local/lib/python3.7/site-packages/pysmartapp/smartapp.py", line 174, in handle_request
    resp = await req.process(smartapp, headers, validate_signature)
  File "/usr/local/lib/python3.7/site-packages/pysmartapp/request.py", line 70, in process
    raise SignatureVerificationError
pysmartapp.errors.SignatureVerificationError

Additional information:

[agrieco]

As an update, I tried to change this to use Nubucasa for remote access vs my own (duckdns addon with a forwarded port) and it worked just fine. The app installed and worked.

One thing to note, my base_url orignally has: https://somedomain.duckdns.org:[someport]

[agrieco]

Ok- after some debugging, it appears there is a bug when the base_url has a port number attached to it. When my base_url had a port associated with it, I got the original error in this bug report. I cleaned up the ST integration config and then when I changed port forwarding around to use 443 and therefore have a base_url: https://somedomain.duckdns.org/ everything works fine.

[frenck]

Yep, SmartThings expects it to run on a standard port.

Glad you've figured it out! 👍

[agrieco]

Yep, SmartThings expects it to run on a standard port.

Glad you've figured it out! 👍

created a PR to update documentation:
home-assistant/home-assistant.io#11349