class WebSocket::Driver::Draft76
Constants
- BODY_SIZE
Public Class Methods
new(socket, options = {})
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Calls superclass method
WebSocket::Driver::Draft75::new
# File lib/websocket/driver/draft76.rb, line 7 def initialize(socket, options = {}) super input = @socket.env['rack.input'] @stage = -1 @body = (input ? input.read : String.new('')).force_encoding(BINARY) @headers.clear @headers['Upgrade'] = 'WebSocket' @headers['Connection'] = 'Upgrade' @headers['Sec-WebSocket-Origin'] = @socket.env['HTTP_ORIGIN'] @headers['Sec-WebSocket-Location'] = @socket.url end
Public Instance Methods
close(reason = nil, code = nil)
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# File lib/websocket/driver/draft76.rb, line 30 def close(reason = nil, code = nil) return false if @ready_state == 3 @socket.write([0xFF, 0x00].pack('C*')) @ready_state = 3 emit(:close, CloseEvent.new(nil, nil)) true end
start()
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Calls superclass method
WebSocket::Driver#start
# File lib/websocket/driver/draft76.rb, line 24 def start return false unless super send_handshake_body true end
version()
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# File lib/websocket/driver/draft76.rb, line 20 def version 'hixie-76' end
Private Instance Methods
handshake_response()
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# File lib/websocket/driver/draft76.rb, line 40 def handshake_response env = @socket.env key1 = env['HTTP_SEC_WEBSOCKET_KEY1'] number1 = number_from_key(key1) spaces1 = spaces_in_key(key1) key2 = env['HTTP_SEC_WEBSOCKET_KEY2'] number2 = number_from_key(key2) spaces2 = spaces_in_key(key2) if number1 % spaces1 != 0 or number2 % spaces2 != 0 emit(:error, ProtocolError.new('Client sent invalid Sec-WebSocket-Key headers')) close return nil end @key_values = [number1 / spaces1, number2 / spaces2] start = 'HTTP/1.1 101 WebSocket Protocol Handshake' headers = [start, @headers.to_s, ''] headers.join("\r\n") end
handshake_signature()
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# File lib/websocket/driver/draft76.rb, line 64 def handshake_signature return nil unless @body.bytesize >= BODY_SIZE head = @body[0...BODY_SIZE] Digest::MD5.digest((@key_values + [head]).pack('N2A*')) end
number_from_key(key)
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# File lib/websocket/driver/draft76.rb, line 86 def number_from_key(key) key.scan(/[0-9]/).join('').to_i(10) end
parse_leading_byte(octet)
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Calls superclass method
WebSocket::Driver::Draft75#parse_leading_byte
# File lib/websocket/driver/draft76.rb, line 79 def parse_leading_byte(octet) return super unless octet == 0xFF @closing = true @length = 0 @stage = 1 end
send_handshake_body()
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# File lib/websocket/driver/draft76.rb, line 71 def send_handshake_body return unless signature = handshake_signature @socket.write(signature) @stage = 0 open parse(@body[BODY_SIZE..-1]) if @body.bytesize > BODY_SIZE end
spaces_in_key(key)
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# File lib/websocket/driver/draft76.rb, line 90 def spaces_in_key(key) key.scan(/ /).size end