specimens-of-composite-portraiture/echoserver.py

import tornado.websocket
import tornado.web
import tornado.ioloop
import os

web_dir = os.path.join(os.path.split(__file__)[0], 'www')
output_dir = os.path.join(os.path.split(__file__)[0], 'output')

# This is our WebSocketHandler - it handles the messages
# from the tornado server
class WebSocketHandler(tornado.websocket.WebSocketHandler):
	connections = set()

	# the client connected
	def open(self):
		self.connections.add(self)
		print ("New client connected")

	# the client sent the message
	def on_message(self, message):
		[con.write_message(message) for con in self.connections]


	# client disconnected
	def on_close(self):
		self.connections.remove(self)
		print ("Client disconnected")

application = tornado.web.Application([
	(r"/ws", WebSocketHandler),
	(r"/output/(.*)", tornado.web.StaticFileHandler, {"path": output_dir}),
	(r"/(.*)", tornado.web.StaticFileHandler, {"path": web_dir, "default_filename": 'index.html'}),
],debug=True)

application.listen(8888)
tornado.ioloop.IOLoop.instance().start()