Module: WebSocket

Extended by:
WebSocket
Included in:
WebSocket
Defined in:
lib/websocket/parser.rb,
lib/websocket_parser.rb,
lib/websocket/message.rb,
lib/websocket/version.rb,
lib/websocket/client_handshake.rb,
lib/websocket/server_handshake.rb

Defined Under Namespace

Classes: ClientHandshake, Message, Parser, ParserError, ServerHandshake

Constant Summary collapse

PROTOCOL_VERSION =

RFC 6455

13
GUID = 
"258EAFA5-E914-47DA-95CA-C5AB0DC85B11"
CRLF = 
"\r\n"
OPCODES =

see tools.ietf.org/html/rfc6455#section-11.8

{
  0  => :continuation,
  1  => :text,
  2  => :binary,
  8  => :close,
  9  => :ping,
  10 => :pong
}
OPCODE_VALUES = 
{
  :continuation => 0,
  :text         => 1,
  :binary       => 2,
  :close        => 8,
  :ping         => 9,
  :pong         => 10
}
STATUS_CODES =

See: tools.ietf.org/html/rfc6455#section-7.4.1

{
  1000 => :normal_closure,
  1001 => :peer_going_away,
  1002 => :protocol_error,
  1003 => :data_error,
  1007 => :data_not_consistent,
  1008 => :policy_violation,
  1009 => :message_too_big,
  1010 => :extension_required,
  1011 => :unexpected_condition
}
VERSION = 
"0.1.3"

Instance Method Summary collapse

Instance Method Details

#frame_format(payload_length, masked = false) ⇒ Object

Determines how to unpack the frame depending on the payload length and wether the frame is masked



52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
 
# File 'lib/websocket_parser.rb', line 52

def frame_format(payload_length, masked = false)
  format = 'CC'

  if payload_length > 65_535
    format += 'Q>'
  elsif payload_length > 125
    format += 'S>'
  end

  if masked
    format += 'a4'
  end

  if payload_length > 0
    format += "a#{payload_length}"
  end

  format
end

#mask(data, mask_key) ⇒ Object Also known as: unmask 



72
73
74
75
76
77
78
79
80
81
 
# File 'lib/websocket_parser.rb', line 72

def mask(data, mask_key)
  masked_data = ''.encode!("ASCII-8BIT")
  mask_bytes = mask_key.bytes.to_a

  data.bytes.each_with_index do |byte, i|
    masked_data << (byte ^ mask_bytes[i%4])
  end

  masked_data
end