Class: Rakie::Websocket

Inherits:
Object
  • Object
show all
Defined in:
lib/rakie/websocket.rb

Direct Known Subclasses

WebsocketServer

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(delegate = nil, channel = nil) ⇒ Websocket

Returns a new instance of Websocket.

Parameters:



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# File 'lib/rakie/websocket.rb', line 7

def initialize(delegate=nil, channel=nil)
  @delegate = delegate

  if channel == nil
    channel = TCPChannel.new('127.0.0.1', 10086, self)        
  end

  @channel = channel

  # @type [WebsocketMessage]
  @recv_message = WebsocketMessage.new

  # @type [Array<WebsocketMessage>]
  @send_messages = []
  @client_side = true
end

Instance Attribute Details

#channel ⇒ Object (readonly)

Returns the value of attribute channel.



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# File 'lib/rakie/websocket.rb', line 4

def channel
  @channel
end

#client_side ⇒ Object

Returns the value of attribute client_side.



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# File 'lib/rakie/websocket.rb', line 3

def client_side
  @client_side
end

#delegate ⇒ Object

Returns the value of attribute delegate.



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# File 'lib/rakie/websocket.rb', line 3

def delegate
  @delegate
end

Instance Method Details

#close ⇒ Object 



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# File 'lib/rakie/websocket.rb', line 125

def close
  ws_message = WebsocketMessage.new
  ws_message.fin = true
  ws_message.op_code = WebsocketMessage::OP_CLOSE

  if @client_side
    ws_message.mask = true
    ws_message.refresh_masking
  end

  ws_message.payload = "close"

  send_message = ws_message.to_s

  Log.debug("Rakie::Websocket send close: #{send_message}")

  @channel.write(send_message) # Response data
end

#on_close(channel) ⇒ Object 



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# File 'lib/rakie/websocket.rb', line 96

def on_close(channel)
  if @delegate
    @delegate.on_disconnect(self)
  end
end

#on_recv(channel, data) ⇒ Object 



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# File 'lib/rakie/websocket.rb', line 24

def on_recv(channel, data)
  Log.debug("Rakie::Websocket recv: #{data}")

  # @type [WebsocketMessage] request
  message = @recv_message

  if message.parse_status == ParseStatus::COMPLETE
    message = WebsocketMessage.new
    @recv_message = message
  end

  len = message.parse(data)

  Log.debug("Rakie::Websocket receive message: #{message.to_s} parse with #{len}")

  if message.parse_status == ParseStatus::COMPLETE
    response = WebsocketMessage.new

    if message.op_code == WebsocketMessage::OP_PING
      response.fin = true
      response.op_code = WebsocketMessage::OP_PONG
      response.payload = "Rakie::Websocket: op pong"

    elsif message.op_code == WebsocketMessage::OP_PONG
      response.fin = true
      response.op_code = WebsocketMessage::OP_PING
      response.payload = "Rakie::Websocket: op ping"

    elsif message.op_code == WebsocketMessage::OP_CLOSE
      channel.close

      Log.debug("Rakie::Websocket: op close")
      return 0

    elsif @delegate
      @delegate.on_message(self, message.payload)
      return len

    else
      response.fin = true
      response.op_code = WebsocketMessage::OP_TEXT
      response.payload = "Rakie!"
    end
    
    response_data = response.to_s

    Log.debug("Rakie::Websocket response: #{response_data}")

    channel.write(response_data) # Response data

  elsif message.parse_status == ParseStatus::ERROR
    channel.close

    Log.debug("Rakie::Websocket: Illegal message")
    return 0
  end

  return len
end

#on_send(channel) ⇒ Object 



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# File 'lib/rakie/websocket.rb', line 84

def on_send(channel)
  # @type [WebsocketMessage]
  last_message = @send_messages.shift

  if last_message
    if last_message.op_code == WebsocketMessage::OP_CLOSE
      Log.debug("Rakie::Websocket: send finish and close channel")
      channel.close
    end
  end
end

#send(message, is_binary = false) ⇒ Object 



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# File 'lib/rakie/websocket.rb', line 102

def send(message, is_binary=false)
  ws_message = WebsocketMessage.new
  ws_message.fin = true
  ws_message.op_code = WebsocketMessage::OP_TEXT
  ws_message.payload = message

  if is_binary
    ws_message.op_code = WebsocketMessage::OP_BIN
  end

  if @client_side
    ws_message.mask = true
    ws_message.refresh_masking
  end

  send_message = ws_message.to_s
  @send_messages << ws_message

  Log.debug("Rakie::Websocket send: #{send_message}")

  @channel.write(send_message) # Response data
end