home/portalmonitor.py

   1 #!/usr/bin/env python3
   2
   3 import requests
   4 import time
   5 import sys
   6 import configparser
   7 from suntime import Sun
   8 from optparse import OptionParser
   9
  10 parser = OptionParser(usage="usage: %prog [options]")
  11 parser.add_option("-s",
  12                   "--status",
  13                   action="store_true",
  14                   dest="printStatus",
  15                   help="Print Status Information",
  16                   default=False)
  17 parser.add_option("-f",
  18                   "--force",
  19                   action="store_true",
  20                   dest="force",
  21                   help="Force retrieval of Power value",
  22                   default=False)
  23 (options, args) = parser.parse_args()
  24
  25
  26 def isDaylight(lat, lon, toleranceSeconds):
  27     daylight = False
  28     sun = Sun(lat, lon)
  29     sunriseTimestamp = int(sun.get_local_sunrise_time().timestamp())
  30     sunsetTimestamp = int(sun.get_local_sunset_time().timestamp())
  31     nowTimestamp = int(time.time())
  32
  33     if ((sunriseTimestamp + toleranceSeconds) < nowTimestamp) and (
  34         (sunsetTimestamp - toleranceSeconds) > nowTimestamp):
  35         daylight = True
  36
  37     return daylight
  38
  39
  40 def getCurrentPower(userName, password, stationId):
  41     with requests.Session() as s:
  42         r = s.post('https://www.envertecportal.com/apiaccount/login',
  43                    data={
  44                        'userName': userName,
  45                        'pwd': password
  46                    },
  47                    timeout=(10, 30))
  48
  49         r = s.post('https://www.envertecportal.com/ApiStations/getStationInfo',
  50                    data={
  51                        'stationId': stationId
  52                    },
  53                    timeout=(10, 60)).json()
  54         power = r['Data']['Power']
  55
  56         r = s.post('https://www.envertecportal.com/apiAccount/Logout',
  57                    timeout=(10, 30))
  58
  59     return float(power)
  60
  61
  62 # read configuration file
  63 conf = configparser.ConfigParser()
  64 conf.read('portalmonitor.ini')
  65
  66 # retrieve current power value as reported by envertecportal
  67 if isDaylight(conf['config'].getfloat('lat'), conf['config'].getfloat('lon'),
  68               conf['config'].getint('toleranceSeconds')) or options.force:
  69     currentPower = getCurrentPower(conf['config']['userName'],
  70                                    conf['config']['password'],
  71                                    conf['config']['stationId'])
  72
  73     if options.printStatus:
  74         print('Current Power: ' + str(currentPower))
  75
  76     if currentPower == 0:
  77         print('Error: Power dropped to 0 but we should have daylight!')
  78         sys.exit(1)