Class: WebSocket::Protocol::Draft75

Inherits:
WebSocket::Protocol show all
Defined in:
lib/websocket/protocol/draft75.rb

Direct Known Subclasses

Draft76

Constant Summary

Constants inherited from WebSocket::Protocol

STATES

Instance Attribute Summary

Attributes inherited from WebSocket::Protocol

#protocol, #ready_state

Instance Method Summary collapse

Methods inherited from WebSocket::Protocol

#binary, #close, jruby?, #onclose, #onerror, #onmessage, #onopen, #ping, rbx?, #start, #state, #text

Constructor Details

#initialize(socket, options = {}) ⇒ Draft75

Returns a new instance of Draft75.



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# File 'lib/websocket/protocol/draft75.rb', line 5

def initialize(socket, options = {})
  super
  @stage = 0
end

Instance Method Details

#frame(data, type = nil, error_type = nil) ⇒ Object 



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# File 'lib/websocket/protocol/draft75.rb', line 57

def frame(data, type = nil, error_type = nil)
  return queue([data, type, error_type]) if @ready_state == 0
  data = Protocol.encode(data)
  frame = ["\x00", data, "\xFF"].map(&Protocol.method(:encode)) * ''
  @socket.write(frame)
  true
end

#parse(buffer) ⇒ Object 



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# File 'lib/websocket/protocol/draft75.rb', line 14

def parse(buffer)
  buffer = buffer.bytes if buffer.respond_to?(:bytes)

  buffer.each do |data|
    case @stage
      when -1 then
        @head << data
        send_handshake_body

      when 0 then
        parse_leading_byte(data)

      when 1 then
        value = (data & 0x7F)
        @length = value + 128 * @length

        if @closing and @length.zero?
          @ready_state = 3
          dispatch(:onclose, CloseEvent.new(nil, nil))
        elsif (0x80 & data) != 0x80
          if @length.zero?
            dispatch(:onmessage, MessageEvent.new(''))
            @stage = 0
          else
            @buffer = []
            @stage = 2
          end
        end

      when 2 then
        if data == 0xFF
          dispatch(:onmessage, MessageEvent.new(Protocol.encode(@buffer)))
          @stage = 0
        else
          @buffer << data
          if @length and @buffer.size == @length
            @stage = 0
          end
        end
    end
  end
end

#version ⇒ Object 



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# File 'lib/websocket/protocol/draft75.rb', line 10

def version
  'hixie-75'
end