Module: Isomorfeus::Transport

Defined in:
lib/isomorfeus/transport.rb,
lib/isomorfeus/transport/imports.rb,
lib/isomorfeus/transport/version.rb,
lib/isomorfeus/transport/ssr_login.rb,
lib/isomorfeus/transport/middlewares.rb,
lib/isomorfeus/transport/request_agent.rb,
lib/isomorfeus/transport/response_agent.rb,
lib/isomorfeus/transport/compressor_rack.rb,
lib/isomorfeus/transport/rack_middleware.rb,
lib/isomorfeus/transport/client_processor.rb,
lib/isomorfeus/transport/server_processor.rb,
lib/isomorfeus/transport/websocket_client.rb,
lib/isomorfeus/transport/server_socket_processor.rb,
lib/isomorfeus/transport/handler/authentication_handler.rb

Defined Under Namespace

Modules: Handler, Imports, Middlewares, ServerProcessor Classes: ClientProcessor, CompressorRack, RackMiddleware, RequestAgent, ResponseAgent, ServerSocketProcessor, SsrLogin, WebsocketClient

Constant Summary collapse

PING = 
`JSON.stringify({iso_ping: true})`
VERSION = 
'2.5.5'

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#socket ⇒ Object

Returns the value of attribute socket.



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# File 'lib/isomorfeus/transport.rb', line 7

def socket
  @socket
end

Instance Method Details

#busy? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/isomorfeus/transport.rb', line 169

def busy?
  requests_in_progress[:requests].size != 0
end

#disconnect ⇒ Object 



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# File 'lib/isomorfeus/transport.rb', line 74

def disconnect
  @socket.close if @socket
  @socket = nil
end

#get_agent_for_request_in_progress(request) ⇒ Object 



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# File 'lib/isomorfeus/transport.rb', line 181

def get_agent_for_request_in_progress(request)
  agent_id = requests_in_progress[:requests][request]
  Isomorfeus::Transport::RequestAgent.get(agent_id)
end

#init ⇒ Object 



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# File 'lib/isomorfeus/transport.rb', line 9

def init
  @socket = nil
  promise_connect if Isomorfeus.on_browser? || Isomorfeus.on_mobile?
  true
end

#keep_session_alive ⇒ Object 



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# File 'lib/isomorfeus/transport.rb', line 67

def keep_session_alive
  after 480000 do
    @socket.send(PING)
    keep_session_alive
  end
end

#promise_connect(session_id = nil, promise = nil) ⇒ Object 



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# File 'lib/isomorfeus/transport.rb', line 15

def promise_connect(session_id = nil, promise = nil)
  promise = Promise.new unless promise
  if @socket && @socket.ready_state < 2
    promise.resolve(true)
    return promise
  end
  if on_browser?
    window_protocol = `window.location.protocol`
    ws_protocol = window_protocol == 'https:' ? 'wss:' : 'ws:'
    ws_url = "#{ws_protocol}//#{`window.location.host`}#{Isomorfeus.api_websocket_path}"
  else
    ws_url = "#{Isomorfeus::TopLevel.transport_ws_url}"
  end
  headers = (session_id.nil? || session_id.empty?) ? nil : { 'Cookie': "session=#{session_id}" }
  @socket = Isomorfeus::Transport::WebsocketClient.new(ws_url, nil, headers)
  @socket.on_error do |error|
    if on_browser?
      `console.warn('Isomorfeus::Transport: Will try again, but so far error connecting:', error)`
      @socket.close
      after 1000 do
        Isomorfeus::Transport.promise_connect(session_id, promise)
      end
    else
      Isomorfeus.raise_error(message: error.JS[:message], stack: error.JS[:stack])
      promise.reject
    end
  end
  @socket.on_message do |event|
    json_hash = `Opal.Hash.$new(JSON.parse(event.data))`
    Isomorfeus::Transport::ClientProcessor.process(json_hash)
  end
  @socket.on_open do |event|
    init_promises = []
    Isomorfeus.transport_init_class_names.each do |constant|
      result = constant.constantize.send(:init)
      init_promises << result if result.class == Promise
    end
    open_promise = if init_promises.size > 0
                     Promise.when(*init_promises)
                   else
                     Promise.new.resolve(true)
                   end
    requests_in_progress[:requests].each_key do |request|
      agent = get_agent_for_request_in_progress(request)
      open_promise.then { promise_send_request(request) } if agent && !agent.sent
    end
    open_promise.then { promise.resolve(true) }
    keep_session_alive if on_browser?
  end
  promise
end

#promise_send_path(*path, &block) ⇒ Object 



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# File 'lib/isomorfeus/transport.rb', line 79

def promise_send_path(*path, &block)
  request = {}
  inject_path = path[0...-1]
  last_inject_path_el = inject_path.last
  last_path_el = path.last
  inject_path.inject(request) do |memo, key|
    if key == last_inject_path_el
      memo[key] = last_path_el
    else
      memo[key] = {}
    end
  end
  Isomorfeus::Transport.promise_send_request(request, &block)
end

#promise_send_request(request, &block) ⇒ Object 



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# File 'lib/isomorfeus/transport.rb', line 94

def promise_send_request(request, &block)
  agent = if request_in_progress?(request)
            get_agent_for_request_in_progress(request)
          else
            Isomorfeus::Transport::RequestAgent.new(request)
          end
  unless agent.sent
    if block_given?
      agent.promise.then do |response|
        block.call(response)
      end
    end
    register_request_in_progress(request, agent.id)
    Isomorfeus.raise_error(message: 'No socket!') unless @socket
    begin
      @socket.send(`JSON.stringify(#{{request: { agent_ids: { agent.id => request }}}.to_n})`)
      agent.sent = true
      after(Isomorfeus.on_ssr? ? 5000 : 20000) do
        unless agent.promise.realized?
          agent.promise.reject({agent_response: { error: 'Request timeout!' }, full_response: {}})
        end
      end
    rescue
      @socket.close
      after (Isomorfeus.on_ssr? ? 10 : 3000) do
        @reconnect = true
        if on_browser?
          Isomorfeus::Transport.promise_connect
        else
          Isomorfeus.raise_error(message: 'Transport lost connection!')
        end
      end
    end
  end
  agent.promise
end

#promise_subscribe(channel_class, channel, &block) ⇒ Object 



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# File 'lib/isomorfeus/transport.rb', line 137

def promise_subscribe(channel_class_name, channel)
  request = { subscribe: true, class: channel_class_name, channel: channel }
  if request_in_progress?(request)
    agent = get_agent_for_request_in_progress(request)
  else
    agent = Isomorfeus::Transport::RequestAgent.new(request)
    register_request_in_progress(request, agent.id)
    Isomorfeus.raise_error(message: 'No socket!') unless @socket
    @socket.send(`JSON.stringify(#{{ subscribe: { agent_ids: { agent.id => request }}}.to_n})`)
  end
  result_promise = agent.promise.then do |agent|
    agent.response
  end
  result_promise
end

#promise_unsubscribe(channel_class, channel, &block) ⇒ Object 



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# File 'lib/isomorfeus/transport.rb', line 153

def promise_unsubscribe(channel_class_name, channel)
  request = { unsubscribe: true, class: channel_class_name, channel: channel }
  if request_in_progress?(request)
    agent = get_agent_for_request_in_progress(request)
  else
    agent = Isomorfeus::Transport::RequestAgent.new(request)
    register_request_in_progress(request, agent.id)
    Isomorfeus.raise_error(message: 'No socket!') unless @socket
    @socket.send(`JSON.stringify(#{{ unsubscribe: { agent_ids: { agent.id => request }}}.to_n})`)
  end
  result_promise = agent.promise.then do |agent|
    agent.response
  end
  result_promise
end

#register_request_in_progress(request, agent_id) ⇒ Object 



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# File 'lib/isomorfeus/transport.rb', line 186

def register_request_in_progress(request, agent_id)
  requests_in_progress[:requests][request] = agent_id
  requests_in_progress[:agent_ids][agent_id] = request
end

#request_in_progress?(request) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/isomorfeus/transport.rb', line 177

def request_in_progress?(request)
  requests_in_progress[:requests].key?(request)
end

#requests_in_progress ⇒ Object 



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# File 'lib/isomorfeus/transport.rb', line 173

def requests_in_progress
  @requests_in_progress ||= { requests: {}, agent_ids: {} }
end

#send_message(channel_class, channel, message) ⇒ Object

RUBY_ENGINE



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# File 'lib/isomorfeus/transport.rb', line 196

def send_message(channel_class, channel, message)
  Isomorfeus.raise_error(message: 'No socket!') unless @socket
  @socket.send(`JSON.stringify(#{{ notification: { class: channel_class.name, channel: channel, message: message }}.to_n})`)
  true
end

#unregister_request_in_progress(agent_id) ⇒ Object 



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# File 'lib/isomorfeus/transport.rb', line 191

def unregister_request_in_progress(agent_id)
  request = requests_in_progress[:agent_ids].delete(agent_id)
  requests_in_progress[:requests].delete(request)
end