pandora/pandora/websocket/daemon.py
2018-06-19 08:33:26 +02:00

84 lines
2.1 KiB
Python

# -*- coding: utf-8 -*-
import json
from threading import Thread
from tornado.httpserver import HTTPServer
from tornado.ioloop import IOLoop
from tornado.web import Application
from tornado.websocket import WebSocketHandler
import logging
logger = logging.getLogger('pandora.websocket')
sockets = []
class Daemon(Thread):
def __init__(self, port, address):
self.port = port
self.address = address
Thread.__init__(self)
self.daemon = True
self.start()
def join(self):
self.main.stop()
def run(self):
options = {
'debug': False,
'gzip': False
}
handlers = [
(r'/(.*)', Handler),
]
self.http_server = HTTPServer(Application(handlers, **options))
self.main = IOLoop.instance()
self.http_server.listen(self.port, self.address)
self.main.start()
class Handler(WebSocketHandler):
'''
def check_origin(self, origin):
# bypass same origin check
return True
'''
def open(self, path):
if self not in sockets:
sockets.append(self)
#websocket calls
def on_close(self):
if self in sockets:
sockets.remove(self)
def on_message(self, message):
pass
#logger.debug('got message %s', message)
def post(self, event, data):
try:
message = json.dumps([event, data])
except:
logger.debug('failed to serialize data %s %s', event, data)
return
main = IOLoop.instance()
main.add_callback(lambda: self.write_message(message))
def trigger_event(event, data):
logger.debug('trigger event %s %s to %s clients', event, data, len(sockets))
main = IOLoop.instance()
try:
message = json.dumps([event, data])
except:
logger.debug('faild to serialise data')
return
for ws in sockets:
try:
main.add_callback(lambda: ws.write_message(message))
except:
logger.debug('failed to send to ws %s %s %s', ws, event, data, exc_info=1)