mapsb/server.py
2016-01-26 15:07:28 +05:30

138 lines
4.2 KiB
Python
Executable file

#!/usr/bin/python3
# -*- coding: utf-8 -*-
# vi:si:et:sw=4:sts=4:ts=4
import os
import json
import uuid
from tornado.httpserver import HTTPServer
from tornado.ioloop import IOLoop
from tornado.web import StaticFileHandler, Application, RequestHandler
from tornado.websocket import WebSocketHandler
import logging
logger = logging.getLogger(__name__)
DEBUG_HTTP = False
BASE_PATH = os.path.normpath(os.path.abspath(os.path.dirname(__file__)))
STATIC_PATH = os.path.join(BASE_PATH, 'static')
VERSION = 1
config = {}
users = set()
rooms = {}
class MainHandler(RequestHandler):
def initialize(self):
pass
def get(self, path):
path = os.path.join(STATIC_PATH, 'index.html')
with open(path) as fd:
content = fd.read()
content = content.replace('.js?0', '.js?%s' % VERSION)
content = content.replace('config = {}', 'config = %s'%json.dumps(config))
self.set_header('Content-Type', 'text/html')
self.set_header('Content-Length', str(len(content)))
self.set_header('Cache-Control', 'no-cache, no-store, must-revalidate')
self.set_header('Pragma', 'no-cache')
self.set_header('Expires', '0')
self.write(content)
class SocketHandler(WebSocketHandler):
def open(self):
id = None
while id is None or id in users:
id = str(uuid.uuid1()).split('-')[0]
users.add(id)
self.id = id
def on_message(self, message):
try:
data = json.loads(message)
event = data[0]
room = data[1]
except:
logger.error('failed', message)
return
if event == 'join':
if not room in rooms:
rooms[room] = []
if not self in rooms[room]:
rooms[room].append(self)
for ws in rooms[room]:
ws.post(['join', self.id])
elif event == 'leave':
if self in rooms.get(room, []):
rooms[room].remove(self)
for ws in rooms[room]:
ws.post(['leave', self.id])
elif event == 'update':
if self in rooms[room]:
data[1] = self.id
for ws in rooms[room]:
if ws != self:
ws.post(data)
def on_close(self):
for room in rooms:
if self in rooms[room]:
rooms[room].remove(self)
for ws in rooms[room]:
ws.post(['leave', self.id])
users.remove(self.id)
def post(self, data):
try:
message = json.dumps(data)
main = IOLoop.instance()
if self.ws_connection is None:
self.on_close()
else:
main.add_callback(lambda: self.write_message(message))
except:
logger.debug('failed to send %s %s', self, data, exc_info=True)
def log_request(handler):
if DEBUG_HTTP:
if handler.get_status() < 400:
log_method = logger.info
elif handler.get_status() < 500:
log_method = logger.warning
else:
log_method = logger.error
request_time = 1000.0 * handler.request.request_time()
log_method("%d %s %.2fms", handler.get_status(),
handler._request_summary(), request_time)
if __name__ == '__main__':
if DEBUG_HTTP:
log_format='%(asctime)s:%(levelname)s:%(name)s:%(message)s'
logging.basicConfig(level=logging.DEBUG, format=log_format)
options = {
'debug': False,
'log_function': log_request,
'gzip': True
}
handlers = [
(r'/(favicon.ico)', StaticFileHandler, {
'path': STATIC_PATH
}),
(r'/static/(.*)', StaticFileHandler, {
'path': STATIC_PATH
}),
(r'/ws', SocketHandler),
(r"(.*)", MainHandler),
]
with open(os.path.join(BASE_PATH, 'config.json')) as fd:
config = json.load(fd)
address = os.environ.get('ADDRESS', '')
port = int(os.environ.get('PORT', 8081))
http_server = HTTPServer(Application(handlers, **options))
http_server.listen(port, address)
main = IOLoop.instance()
main.start()