# WebSocket extensions for Thin
# Based on code from the Cramp project
# http://github.com/lifo/cramp

# Copyright (c) 2009-2011 Pratik Naik
# 
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
# 
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

class Thin::Connection
  attr_accessor :socket_stream
  
  alias :thin_process      :process
  alias :thin_receive_data :receive_data
  
  def process
    if @serving != :websocket and @request.websocket?
      @serving = :websocket
    end
    if @request.async_connection?
      @request.env['em.connection'] = self
      @response.persistent!
      @response.async = true
    end
    thin_process
  end
  
  def receive_data(data)
    return thin_receive_data(data) unless @serving == :websocket
    socket_stream.receive(data) if socket_stream
  end
end

class Thin::Request
  include Faye::WebSocket::Adapter
end

class Thin::Response
  attr_accessor :async
  alias :thin_head :head
  
  def head
    async ? '' : thin_head
  end
end