Class: Roda::Component::Faye::ChannelManager

Inherits:
Object
  • Object
show all
Defined in:
lib/roda/component/faye.rb

Instance Method Summary collapse

Instance Method Details

#get_app(request) ⇒ Object 



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# File 'lib/roda/component/faye.rb', line 241

def get_app request
  request.env['RODA_COMPONENT_FROM_FAYE'] = true
  a = Class.new(Roda::Component.app.class).new
  a.instance_variable_set(:@_request, request)
  a
end

#incoming(message, r, callback) ⇒ Object 



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# File 'lib/roda/component/faye.rb', line 118

def incoming(message, r, callback)
  r.env['RODA_COMPONENT_FROM_FAYE'] = true
  r.env['HTTP_X_RODA_COMPONENT_ON_SERVER'] = true

  app = get_app(r)

  session_id = r.session['session_id']
  public_id  = message['ext'] && message['ext']['public_id']
  private_id = message['ext'] && message['ext'].delete('private_id')
  key        = "#{app.component_opts[:redis_namespace]}users:#{session_id}"

  case message['channel']
  when '/meta/connect'
    callback.call message

    if session_id
      redis.call 'HSET', "#{key}/ids", private_id, public_id
      # puts redis.call 'HGETALL', "#{key}/ids"
    end
  when '/meta/disconnect'
    callback.call message

    redis.call 'DEL', "#{key}/ids"
    channels = redis.call 'GET', "#{key}/channels/#{public_id}"
    channels = channels ? JSON.parse(channels) : []

    channels.each do |channel|
      send_sub_to({
        'channel'      => '/meta/unsubscribe',
        'subscription' => channel,
        'ext'          => message['ext']
      }, public_id, private_id, app, key, r)
    end

    redis.call 'DEL', "#{key}/channels/#{public_id}"
  when '/meta/subscribe', '/meta/unsubscribe'
    if message['subscription'][%r{\A/components/}]
      callback.call message
      send_sub_to message, public_id, private_id, app, key, r
    end
  else
    if data = message['data']
      case data['type']
      when 'event'
        options ||= {}
        options.merge! data['local']

        data['event_type'] == 'call' \
          ? options[:call]    = data['event_method'] \
          : options[:trigger] = data['event_method']

        begin
          message['data']['local'] = app.roda_component(:"#{data['name']}", options)
          message['channel']       = message['channel'].gsub(/outgoing/, 'incoming')
        rescue Exception => e
          #fix: faye extentions are capturing errors for some reason
          ap e.message
          ap e.message.inspect
        end
      end
    end

    callback.call message
  end
end

#outgoing(message, request, callback) ⇒ Object

/components/:id/:comp/:action



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# File 'lib/roda/component/faye.rb', line 229

def outgoing(message, request, callback)
  app = get_app request

  # message[:data] = app.roda_component(:auth, call: :cow) || false

  # ap '====OUTGOING===='
  # ap message
  # ap '================'

  callback.call message
end

#redis ⇒ Object 



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# File 'lib/roda/component/faye.rb', line 114

def redis
  @redis ||= Redic.new(Roda::Component.app.component_opts[:redis_uri])
end

#send_sub_to(message, public_id, private_id, app, key, request) ⇒ Object 



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# File 'lib/roda/component/faye.rb', line 184

def send_sub_to message, public_id, private_id, app, key, request
  key = "#{key}/channels/#{public_id}"

  joining = message['channel'] == '/meta/subscribe' ? true : false

  component_name = message['subscription'].split('/').last

  channels = redis.call 'GET', key
  channels = channels ? JSON.parse(channels) : []

  if joining
    channels << message['subscription']
  else
    channels.delete message['subscription']
  end

  if channels.length
    redis.call 'SET', key, channels.to_json
  end

  data = app.roda_component(:"#{component_name}", { trigger: (joining ? :join : :leave), public_id: public_id, private_id: private_id })

  url = "http#{request.env['SERVER_PORT'] == '443' ? 's' : ''}://#{request.env['SERVER_NAME']}:#{request.env['SERVER_PORT']}/faye"
  # client = ::Faye::Client.new(url)
  # client.publish "/components/#{component_name}", type: (joining ? 'join' : 'leave'), public_id: public_id, token: app.component_opts[:token], local: data
  # EM.run {
    http = EM::HttpRequest.new(url).post(
      head: {
       'content-type' => 'application/json'
      },
      body: {
        channel: "/components/#{component_name}",
        data: {
          type: (joining ? 'join' : 'leave'), public_id: public_id, token: app.component_opts[:token], local: data }
        }.to_json
    )
    # http.callback {
    #   ap http.response_header.status
    #   ap http.response_header
    #   ap http.response
    # }
  # }
end