class WebSocket::Handshake::Handler::Client04

Public Instance Methods

valid?() click to toggle source

@see WebSocket::Handshake::Base#valid?

# File lib/websocket/handshake/handler/client04.rb, line 11
def valid?
  super && verify_accept && verify_protocol
end

Private Instance Methods

accept() click to toggle source

Value of Sec-WebSocket-Accept that should be delivered back by server @return [Sering] accept

# File lib/websocket/handshake/handler/client04.rb, line 42
def accept
  @accept ||= Base64.encode64(Digest::SHA1.digest(key + '258EAFA5-E914-47DA-95CA-C5AB0DC85B11')).strip
end
handshake_keys() click to toggle source

@see WebSocket::Handshake::Handler::Base#handshake_keys

# File lib/websocket/handshake/handler/client04.rb, line 18
def handshake_keys
  keys = [
    %w[Upgrade websocket],
    %w[Connection Upgrade]
  ]
  host = @handshake.host
  host += ":#{@handshake.port}" unless @handshake.default_port?
  keys << ['Host', host]
  keys += super
  keys << ['Sec-WebSocket-Origin', @handshake.origin] if @handshake.origin
  keys << ['Sec-WebSocket-Version', @handshake.version]
  keys << ['Sec-WebSocket-Key', key]
  keys << ['Sec-WebSocket-Protocol', @handshake.protocols.join(', ')] if @handshake.protocols.any?
  keys
end
key() click to toggle source

Sec-WebSocket-Key value @return [String] key

# File lib/websocket/handshake/handler/client04.rb, line 36
def key
  @key ||= Base64.encode64((1..16).map { rand(255).chr } * '').strip
end
provided_protocols() click to toggle source
# File lib/websocket/handshake/handler/client04.rb, line 57
def provided_protocols
  @handshake.headers['sec-websocket-protocol'].to_s.split(/ *, */)
end
supported_protocols() click to toggle source
# File lib/websocket/handshake/handler/client04.rb, line 53
def supported_protocols
  @handshake.protocols
end
verify_accept() click to toggle source

Verify if received header Sec-WebSocket-Accept matches generated one. @return [Boolean] True if accept is matching. False otherwise(appropriate error is set)

# File lib/websocket/handshake/handler/client04.rb, line 48
def verify_accept
  raise WebSocket::Error::Handshake::InvalidAuthentication unless @handshake.headers['sec-websocket-accept'] == accept
  true
end