Add support for HTTPS Homeassistant

[haydonryan]

Thanks for creating this project- very cool! Fits a great usecase especially as homeassistant can send notifications to your phone when the internet is off (makes sending a notification to your phone for things like "the net is down" - super useful)

I was trying to set it up at home, however I have custom certs and have home assistant listening for HTTPS only traffic. Would it be possible to add support for https?

[haydonryan]

It'd be also awesome to add an option for tls.Config{InsecureSkipVerify: true}

[haydonryan]

I did a quick and dirty test:
added "crypto/tls"

and added a few lines:

78   tr := &http.Transport{
79     TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
80   }
81 
82   client := http.Client{
83     Timeout: time.Duration(5 * time.Second),
84     Transport: tr,
85   }

This worked for me. I would have done a PR but i don't know if this will work with regular HTTP homeassistants, so maybe throw this into your setup and check if it works. Then I'm happy to either let you modify the code or submit a PR. :)

[pinpox]

I personally don't have the time to implement this myself, but would be open to merge any PR's that implement this and don't break the current functionality. If the above works, you should probably expose InsecureSkipVerify: true as an environment variable, similiar to the other settings to make it configurable (and default to false as this is the safer behaviour).