Method: Pokan::RequestHandler#receive_data

Defined in:
lib/pokan/request_handler.rb

#receive_data(json_data) ⇒ Object

Receives the gossip message and returns the apropriate message

  • digest message -> pull message

  • pull message -> push message and newer keys stored

  • push message -> newer keys stored

  • hello message -> peer created locally

  • goodbye message -> peer killed locally



34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
 
# File 'lib/pokan/request_handler.rb', line 34

def receive_data(json_data)
  message = JSON.parse(json_data)
  data = message['data']

  case message['action']
  when 'digest'
    pull = pull_message(data)
    send_datagram(pull, *message['origin'].split(':'))

    pull
  when 'pull'
    response = push_message(data['older'])
    merge(data['newer'])
    send_datagram(response, *message['origin'].split(':'))

    response
  when 'push'
    merge(data)
  when 'hello'
    peer = Peer.new
    peer.id = message['origin']
    # peer.store(:role, message['role'])
    peer.save
  when 'goodbye'
    peer = Query.new(Peer).where(id: message['origin'])[0]
    peer.store(:status, 'dead', message['timestamp'])
    peer.save
  end
end