Mercurial > templog
annotate py/uploader.py @ 509:e45649618a5e
improve README
| author | Matt Johnston <matt@ucc.asn.au> |
|---|---|
| date | Thu, 26 Jun 2014 21:35:23 +0800 |
| parents | 1865674794c3 |
| children | 4d82099d1fe0 |
| rev | line source |
|---|---|
| 444 | 1 import json |
| 2 import hmac | |
| 3 import zlib | |
| 459 | 4 import binascii |
| 5 import urllib | |
| 6 import urllib2 | |
| 7 | |
| 8 import gevent | |
| 9 | |
| 10 import config | |
| 11 from utils import L,D,EX,W,E | |
| 12 import utils | |
| 444 | 13 |
| 14 class Uploader(gevent.Greenlet): | |
| 15 def __init__(self, server): | |
| 16 gevent.Greenlet.__init__(self) | |
| 17 self.server = server | |
| 18 | |
| 19 def _run(self): | |
| 459 | 20 gevent.sleep(5) |
| 444 | 21 while True: |
| 22 self.do() | |
| 23 gevent.sleep(config.UPLOAD_SLEEP) | |
| 24 | |
| 25 def get_tosend(self, readings): | |
| 26 tosend = {} | |
| 27 | |
| 28 tosend['fridge_on'] = self.server.fridge.is_on() | |
| 29 | |
| 30 tosend['now'] = self.server.now() | |
| 31 tosend['readings'] = readings | |
| 32 | |
| 33 tosend['wort_name'] = self.server.wort_name | |
| 459 | 34 tosend['fridge_name'] = self.server.wort_name |
| 444 | 35 |
| 490 | 36 tosend['current_params'] = dict(self.server.params) |
| 444 | 37 |
| 38 tosend['start_time'] = self.server.start_time | |
| 39 tosend['uptime'] = utils.uptime() | |
| 40 | |
| 41 return tosend | |
| 42 | |
| 43 def send(self, tosend): | |
| 44 js = json.dumps(tosend) | |
| 45 js_enc = binascii.b2a_base64(zlib.compress(js)) | |
| 46 mac = hmac.new(config.HMAC_KEY, js_enc).hexdigest() | |
| 47 url_data = urllib.urlencode( {'data': js_enc, 'hmac': mac} ) | |
| 48 con = urllib2.urlopen(config.UPDATE_URL, url_data) | |
| 49 result = con.read(100) | |
| 50 if result != 'OK': | |
| 51 raise Exception("Server returned %s" % result) | |
| 52 | |
| 459 | 53 def do(self): |
| 444 | 54 readings = self.server.take_readings() |
| 55 try: | |
|
445
5b9dc87c988f
update web to handle new style params
Matt Johnston <matt@ucc.asn.au>
parents:
444
diff
changeset
|
56 tosend = self.get_tosend(readings) |
| 459 | 57 nreadings = len(readings) |
| 444 | 58 self.send(tosend) |
| 459 | 59 readings = None |
| 462 | 60 D("Sent updated %d readings" % nreadings) |
| 459 | 61 except urllib2.HTTPError, e: |
| 62 E("Error in uploader: %s" % str(e)) | |
| 444 | 63 except Exception, e: |
| 459 | 64 EX("Error in uploader: %s" % str(e)) |
| 444 | 65 finally: |
| 66 if readings is not None: | |
| 67 self.server.pushfront(readings) |