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IOTserver.py
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IOTserver.py
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import socket
import time
import json
import os
import thread
import tornado.httpserver
import tornado.websocket
import tornado.ioloop
import tornado.web
import pymongo
from pymongo import MongoClient
from mongofun import MongoFun
clients = []
eventinject = {}
'''
This is a file that handle is main in IOT communicate project
'''
MONGO = MongoFun()
class BaseHandler(tornado.web.RequestHandler):
"""base handler no more use than fetch current user"""
def get_current_user(self):
return self.get_secure_cookie("user")
class MainHandler(BaseHandler):
'''main handler check cookie if not valid than redirect to login'''
@tornado.web.authenticated
def get(self):
if not self.current_user:
self.redirect("/login")
return
self.redirect('/mydevices')
class CreateHandler(BaseHandler):
'''handler that create new devices with only by passing name in argument'''
@tornado.web.authenticated
def get(self):
if not self.current_user:
self.redirect("/login")
return
# user = tornado.escape.xhtml_escape(self.current_user)
self.render("newdevice.html")
def post(self):
global MONGO
self.id = self.current_user
self.dname = self.get_argument('dname', True)
self.did = MONGO.randomGen(size=20)
self.dkey = MONGO.randomGen(size=15)
DeviceData = {"name": self.dname,
"deviceid": self.did, "devicekey": self.dkey}
MONGO.addDevice(self.id, DeviceData)
self.redirect("/mydevices")
class LogoutHandler(BaseHandler):
'''for logout'''
def get(self):
self.clear_cookie("user")
self.redirect("/login")
class LoginHandler(BaseHandler):
'''login handler'''
def get(self):
if self.current_user:
self.redirect("/")
return
self.render("login.html")
def post(self):
global MONGO
self.uname = self.get_argument('uname', True)
self.pword = self.get_argument('pword', True)
print "[notify]login from", self.uname
id = MONGO.verifyUser(self.uname, self.pword)
print "[info]user loggedin", str(id)
if id is None:
self.render("login.html")
else:
self.set_secure_cookie("user", str(id))
self.redirect("/")
class MydeviceHandler(BaseHandler):
'''my devices give list of devices that you created'''
@tornado.web.authenticated
def get(self):
if not self.current_user:
self.redirect("/login")
return
self.id = tornado.escape.xhtml_escape(self.current_user)
devicelist = MONGO.listDevices(self.id)
self.render("home.html", mydevices=devicelist)
class DocsHandler(BaseHandler):
'''provide docs to user'''
@tornado.web.authenticated
def get(self):
if not self.current_user:
self.redirect("/login")
return
self.id = self.current_user
self.render("docs.html")
class signUpHandler(tornado.web.RequestHandler):
def get(self):
self.render('signup.html')
def post(self):
global MONGO
self.name = self.get_argument('name', True)
self.email = self.get_argument('email', True)
self.pword = self.get_argument('pword', True)
userdata = {"name": self.name, "email": self.email,
"pass": self.pword, "devices": []}
MONGO.addUser(userdata)
self.redirect("/login")
class WSHandler(tornado.websocket.WebSocketHandler):
def open(self):
global MONGO
global clients
clients.append(self)
self.device = self.get_argument('device', True)
self.key = self.get_argument('key', True)
self.side = self.get_argument('side', True)
print "[notify]connection established", self.device
print "[notify]from function in mongodbveriy", MONGO.verifyDevice(self.device, self.key)
if MONGO.verifyDevice(self.device, self.key) is 0:
self.close()
self.conn = MongoClient('mongodb://localhost:27017/')
self.db = self.conn['IOT']
self.coll = self.db[self.device]
print "[notify]connection established"
self.cursor = self.coll.find(
{"time": {"$gt": time.time()}}, cursor_type=pymongo.CursorType.TAILABLE_AWAIT)
def run(*args):
"""it will run in background check for device update,if found then
sned it to respective device or client"""
while self.cursor.alive:
try:
doc = self.cursor.next()
del doc["_id"]
if doc["write"] != self.side:
self.write_message(json.dumps(doc))
except StopIteration:
time.sleep(2)
self.eventinject = thread.start_new_thread(run, ())
def on_message(self, message):
opinfo = json.loads(message)
print "[info]message received from", self.device,self.side
if opinfo['method'] == "put":
opinfo["status"]["time"] = time.time()
opinfo["status"]["write"] = self.side
MONGO.addDeviceStatus(self.device, opinfo["status"])
elif opinfo['method'] == "get":
self.write_message(MONGO.getDeviceStatus(
self.device, opinfo['sensor']))
else:
print "[fail]methods are not executed"
def on_close(self):
clients.remove(self)
print("[notify]WebSocket closed")
SETTINGS = {
"template_path": os.path.join(os.path.dirname(__file__), "templates"),
"static_path": os.path.join(os.path.dirname(__file__), "static"),
"cookie_secret": "djbffdjgbkfdjsbgrkgkjtbrgbbfiurbt",
"xsrf_cookies": False,
"login_url": "/login",
"debug": True
}
application = tornado.web.Application(handlers=[
(r'/docs', DocsHandler),
(r'/', MainHandler),
(r'/ws', WSHandler),
(r'/login', LoginHandler),
(r'/logout', LogoutHandler),
(r'/create', CreateHandler),
(r'/mydevices', MydeviceHandler),
(r'/signup', signUpHandler)
], **SETTINGS)
if __name__ == "__main__":
Http_server = tornado.httpserver.HTTPServer(application)
Http_server.listen(80)
#myip = socket.gethostbyname(socket.gethostname())
print '*** Websocket Server Started at 0.0.0.0***'
tornado.ioloop.IOLoop.instance().start()