Module: Roku::Discover

Defined in:
lib/roku/discover.rb

Defined Under Namespace

Classes: DeviceNotFound

Constant Summary collapse

MULTICAST_ADDR = 
'239.255.255.250'.freeze
BIND_ADDR = 
'0.0.0.0'.freeze
PORT = 
1900
REQUEST = 
"M-SEARCH * HTTP/1.1\n" \
"Host: 239.255.255.250:1900\n" \
"Man: \"ssdp:discover\"\n" \
"ST: roku:ecp\n\n".freeze

Class Method Summary collapse

Class Method Details

.await_response ⇒ Object 



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# File 'lib/roku/discover.rb', line 34

def await_response
  Timeout.timeout(10) do
    loop do
      response, = socket.recvfrom(1024)
      if response.include?('LOCATION') && response.include?('200 OK')
        return response
      end
    end
  end
end

.search ⇒ Object 



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# File 'lib/roku/discover.rb', line 18

def search
  bind
  socket.send(REQUEST, 0, MULTICAST_ADDR, PORT)
  begin
    parse_address(await_response)
  rescue Timeout::Error
    raise DeviceNotFound,
          "Roku's automatic device discovery failed. If you continue " \
          "to receive this message, you should try restarting your " \
          "router, and you may want to manually configure this. You " \
          "can do this by finding the device's IP via your router " \
          "and setting the ROKU_HOST environment variable to " \
          "\"http://{{device-ip}}:8060\"."
  end
end