Module: EventMachine::WebSocket::Handshake75

Included in:
Handler75
Defined in:
lib/em-websocket/handshake75.rb

Class Method Summary collapse

Class Method Details

.handshake(headers, path, secure) ⇒ Object


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# File 'lib/em-websocket/handshake75.rb', line 4

def self.handshake(headers, path, secure)
  scheme = (secure ? "wss" : "ws")
  location = "#{scheme}://#{headers['host']}#{path}"

  upgrade =  "HTTP/1.1 101 Web Socket Protocol Handshake\r\n"
  upgrade << "Upgrade: WebSocket\r\n"
  upgrade << "Connection: Upgrade\r\n"
  upgrade << "WebSocket-Origin: #{headers['origin']}\r\n"
  upgrade << "WebSocket-Location: #{location}\r\n"
  if protocol = headers['sec-websocket-protocol']
    validate_protocol!(protocol)
    upgrade << "Sec-WebSocket-Protocol: #{protocol}\r\n"
  end
  upgrade << "\r\n"

  return upgrade
end

.validate_protocol!(protocol) ⇒ Object

Raises:


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# File 'lib/em-websocket/handshake75.rb', line 22

def self.validate_protocol!(protocol)
  raise HandshakeError, "Invalid WebSocket-Protocol: empty" if protocol.empty?
  # TODO: Validate characters
end