checkurlthensms.py

#!/usr/bin/env python
# check url for a text and send alert via nexmo.com sms api
#
# example, checking for machina ex tickets:
#
# while [ 1 ]; do
# ./checkurlthensms.py \
#  http://www.hebbel-am-ufer.de/programm/spielplan/machina-ex-lessons-of-leaking/2354/ \
#  ticketLink "Tickets available" \
#  <nexmo_apikey> <nexmo_apisecret> \
#  <49###########-yourphone>
#  sleep $((60*5))
# done
#
lockfile     = ".checkurl"

import urllib
import json
import os
import sys

if len(sys.argv) < 7:
    print """
%s <url> <findstr> <shortmessage> <sms_apikey> <apisecret> <to_phone> [<testrun>]

If <findstr> found anywhere in <url> contents, send <shortmessage>
to <to_phone>, using nexmo.com sms gateway. Set <testrun> field to 1 for test run.

Will check .checkurl lockfile and if exists program exits. That means sms
will only be sent on first match. To clear just delete .checkurl file.

example:
rm .checkurl; %s \\
  http://www.hebbel-am-ufer.de/programm/spielplan/machina-ex-lessons-of-leaking/2354/ \\
  ticketLink "Tickets available" <nexmo_apikey> <apisecret> 4917122223333
    """%(sys.argv[0],sys.argv[0],)
    sys.exit()


url          = sys.argv[1]
findstr      = sys.argv[2]
shortmessage = sys.argv[3]
apikey       = sys.argv[4]
apisecret    = sys.argv[5]
to           = sys.argv[6] #must be whitelisted https://dashboard.nexmo.com/private/profile/phonenumber
if len(sys.argv) == 8:
    testrun    = True
else:
    testrun    = False

if os.path.isfile(lockfile) and not testrun:
    print "Exit."
    sys.exit()

response = urllib.urlopen(url)
html = response.readlines()

for line in html:
    if findstr in line:
        if not testrun:
            with open(lockfile, 'a'):
                os.utime(lockfile, None)

        balanceurl = "https://rest.nexmo.com/account/get-balance?api_key=%s&api_secret=%s"%(apikey,apisecret)
        balanceresponse = urllib.urlopen(balanceurl)
        balance = json.loads(balanceresponse.read())
        if 'value' in balance:
            shortmessage += " (sms account balance: "+str(balance['value']-0.07)+")"
        else:
            shortmessage += " (could not check sms account balance)"

        smsurl =  "https://rest.nexmo.com/sms/json?api_key=%s&api_secret=%s"%(apikey,apisecret)
        smsurl += "&from=CheckBot&to=%s"%to
        smsurl += "&text="+urllib.quote_plus(shortmessage)
        if not testrun:
            smsresponse = urllib.urlopen(smsurl)

        if sys.stdout.isatty():
            print "MATCH LINE:",
            print line.strip()
            print "SMS URL:",
            print smsurl
            if not testrun:
                print "SMS RESPONSE:"
                print smsresponse.read()
                print "status:0 means success"
            # print "VERIFY TO PHONE IF UNVERIFIED:"
            # print "https://api.nexmo.com/verify/json?api_key=%s&api_secret=%s&brand=CheckBot&number=%s"%(apikey,apisecret,to)
            # print "THEN:"
            # print "https://api.nexmo.com/verify/check/json?api_key=%s&api_secret=%s&request_id=<ID>&code=<CODE>"%(apikey,apisecret)

        sys.exit()

if sys.stdout.isatty():
    print "No match found"