guest_worker/server.py
2019-09-11 18:16:33 +02:00

105 lines
3.1 KiB
Python

import tornado.ioloop
import tornado.web
import tornado.websocket
import logging
import coloredlogs
import argparse
import json
from urllib.parse import urlparse
logger = logging.getLogger("drawing")
argParser = argparse.ArgumentParser(description='Start up the server to have non-Mechanical Turks draw their sketches.')
argParser.add_argument(
'--port',
'-p',
default=8888,
help='The port for the server to listen'
)
argParser.add_argument(
'--verbose',
'-v',
action="store_true",
)
class StaticFileWithHeaderHandler(tornado.web.StaticFileHandler):
def set_extra_headers(self, path):
"""For subclass to add extra headers to the response"""
if path[-5:] == '.html':
self.set_header("Access-Control-Allow-Origin", "*")
class WebSocketHandler(tornado.websocket.WebSocketHandler):
CORS_ORIGINS = ['localhost', '.mturk.com']
connections = set()
def check_origin(self, origin):
parsed_origin = urlparse(origin)
# parsed_origin.netloc.lower() gives localhost:3333
valid = any([parsed_origin.hostname.endswith(origin) for origin in self.CORS_ORIGINS])
return valid
# the client connected
def open(self, p = None):
self.__class__.connections.add(self)
logger.info("New client connected")
self.write_message("hello!")
# the client sent the message
def on_message(self, message):
logger.debug(f"recieve: {message}")
try:
msg = json.loads(message)
if msg['action'] == 'move':
pass
elif msg['action'] == 'up':
logger.info(f'up: {msg}')
elif msg['action'] == 'submit':
logger.info(f'up: {msg}')
self.write_message(json.dumps('submitted'))
elif msg['action'] == 'down':
# not used, implicit in move?
pass
else:
# self.send({'alert': 'Unknown request: {}'.format(message)})
logger.warn('Unknown request: {}'.format(message))
except Exception as e:
# self.send({'alert': 'Invalid request: {}'.format(e)})
logger.exception(e)
# client disconnected
def on_close(self):
self.__class__.rmConnection(self)
logger.info("Client disconnected")
@classmethod
def rmConnection(cls, client):
if client not in cls.connections:
return
cls.connections.remove(client)
if __name__ == "__main__":
args = argParser.parse_args()
print(logger.level)
coloredlogs.install(
level=logging.DEBUG if args.verbose else logging.INFO,
)
logger.addHandler(
logging.handlers.RotatingFileHandler(
'mt_server.log',
maxBytes=1024*512,
backupCount=5
)
)
application = tornado.web.Application([
(r"/ws(.*)", WebSocketHandler),
(r"/(.*)", StaticFileWithHeaderHandler,
{"path": 'www', "default_filename": 'index.html'}),
], debug=True)
application.listen(args.port)
tornado.ioloop.IOLoop.current().start()