IpCamera: New IP Camera Binding

Add-ons Bindings
, ,
2512

I’d love to see your code. I just use Sun elevation (also from astro). I’d like to also do it based on light level, e.g. when it’s very overcast / raining during the day, switch it to night profile too. I haven’t figured out how to determine the light level. I’d like to do it based on the camera / camera feed itself, and not have to use extra external lux sensors.

Here’s my current code, written in JRuby OpenHAB Rules System

require 'openhab'
require 'net/http'
require 'net/http/digest_auth'

SUN_ELEVATION_THRESHOLD = 5 # Threshold for switching camera profile to day/night

def http_digest_get(url, user:, pass:)
  digest_auth = Net::HTTP::DigestAuth.new

  uri = URI(url)
  uri.user = CGI.escape(user)
  uri.password = CGI.escape(pass)

  h = Net::HTTP.new uri.host, uri.port

  req = Net::HTTP::Get.new uri.request_uri

  res = h.request req
  # res is a 401 response with a WWW-Authenticate header
  auth = digest_auth.auth_header uri, res['www-authenticate'], 'GET'

  # create a new request with the Authorization header
  req = Net::HTTP::Get.new uri.request_uri
  req.add_field 'Authorization', auth

  # re-issue request with Authorization
  h.request req
end

def dahua_set_profile(ip, profile, user, pass)
  profile = { day: '0', night: '1' }[profile]
  http_digest_get("http://#{ip}/cgi-bin/configManager.cgi?action=setConfig&VideoInMode[0].Config[0]=#{profile}",
                  user: user, pass: pass)
end

rule 'Dahua: Profile switch to day' do
  changed Sun_Elevation
  on_start
  run do |event|
    if Sun_Elevation > SUN_ELEVATION_THRESHOLD && (event.nil? || event.was <= SUN_ELEVATION_THRESHOLD)
      profile = :day
    elsif Sun_Elevation < SUN_ELEVATION_THRESHOLD && (event.nil? || event.was >= SUN_ELEVATION_THRESHOLD)
      profile = :night
    else
      next
    end
    logger.info("DAHUA PROFILE switched to: #{profile}")
    dahua_set_profile(CAMERA_IP['Street'], profile, CAM_USER, CAM_PASS)
  end
end