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usvisa.py
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usvisa.py
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import sys
import json
import logging
import requests
import optparse
import threading
from lxml import html
from time import sleep
from datetime import datetime
class TooManyRequestsException(Exception):
pass
class OtherHttpException(Exception):
pass
class BlockedException(Exception):
pass
class USVisa:
def __init__(self, username, password, scheduleId, bestDate, locations, delay, delaytmr):
self.logger = self.getLogger()
self.scheduleId = scheduleId
self.username = username
self.password = password
self.scheduleId = scheduleId
self.bestDate = bestDate
self.locations = locations
self.delay = delay
self.delaytmr = delaytmr
def getLogger(self):
formatter = logging.Formatter(fmt='%(asctime)s %(levelname)-8s %(message)s', datefmt='%Y-%m-%d %H:%M:%S')
handler = logging.FileHandler('log.txt', mode='w')
handler.setFormatter(formatter)
screen_handler = logging.StreamHandler(stream=sys.stdout)
screen_handler.setFormatter(formatter)
logger = logging.getLogger("MyLogger")
logger.setLevel(logging.DEBUG)
logger.addHandler(handler)
logger.addHandler(screen_handler)
return logger
def login(self, session_requests):
login_url = "https://ais.usvisa-info.com/en-il/niv/users/sign_in"
result = session_requests.get(login_url, headers={'User-Agent': 'Mozilla/5.0'})
tree = html.fromstring(result.text)
authenticity_token = list(set(tree.xpath("//input[@name='authenticity_token']/@value")))[0]
payload = {
"user[email]": self.username,
"user[password]": self.password,
"policy_confirmed": "1",
"authenticity_token": authenticity_token
}
result = session_requests.post(login_url, data=payload, headers={'User-Agent': 'Mozilla/5.0'})
return result, session_requests
def findEarliest(self, session_requests, loc):
res2 = session_requests.get(f"https://ais.usvisa-info.com/en-il/niv/schedule/{self.scheduleId}/appointment/days/{loc}.json?appointments[expedite]=false", headers={'User-Agent': 'Mozilla/5.0'})
if res2.status_code == 200:
jsonRes = json.loads(res2.text)
if len(jsonRes) == 0:
raise BlockedException()
for res in jsonRes:
aDate = datetime.strptime(res["date"], "%Y-%m-%d")
if aDate >= datetime(year=2022, month=7, day=11):
return aDate
raise BlockedException()
elif res2.status_code == 429:
raise TooManyRequestsException()
else:
raise OtherHttpException()
def findAvailableTimes(self, session_requests, loc, dateStr, timeSlots):
url = f"https://ais.usvisa-info.com/en-il/niv/schedule/{self.scheduleId}/appointment/times/{loc}.json?date={dateStr}&appointments[expedite]=false"
_delay = 0.5
for i in range(9):
self.logger.info(f"Finding time for {dateStr} at {loc}...")
res = session_requests.get(url, headers={'User-Agent': 'Mozilla/5.0'})
self.logger.debug(f"Status code: {res.status_code}")
if res.status_code == 200:
jsonRes = json.loads(res.text)
self.logger.debug(f"Available times: {res.text}")
for time in jsonRes["available_times"]:
timeSlots.insert(0, time)
return
if res.status_code != 429:
raise OtherHttpException()
self.logger.debug(f"[Finding time] Sleeping for {_delay}...")
sleep(_delay)
_delay = _delay * 1.7
self.logger.warning("Couldn't find times after all retries.")
def doReschedulePost(self, timeSlots, url, payload, hdrs, session_requests):
for timeStr in timeSlots:
_delay = 0.1
for i in range(9):
self.logger.info(f"Sending reschedule request at {timeStr}...")
payload["appointments[consulate_appointment][time]"] = timeStr
res = session_requests.post(url, data=payload, headers=hdrs)
self.logger.debug(f"Status code: {res.status_code}")
try:
dateStr = payload["appointments[consulate_appointment][date]"]
_filename = f"reschedule{dateStr}-{timeStr}.html"
_filename.replace(':', '').replace('-', '')
f = open(_filename, "w")
f.write(res.text)
f.close
except Exception as ex:
self.logger.error(f"Couldn't write file: {ex}")
self.logger.debug(res.text)
pass
if res.status_code == 429:
self.logger.debug(f"[Sending reschedule request] Sleeping for {_delay}...")
sleep(_delay)
_delay = _delay * 1.7
elif res.status_code == 200:
if res.text.find('Successfully Scheduled') != -1:
self.logger.info(f"Success!")
return True
else:
self.logger.warning(f"Failed")
continue
elif res.status_code != 429:
raise OtherHttpException()
return False
def reschedule(self, session_requests, loc, dateStr):
try:
timeSlots = []
findTimeThread = threading.Thread(target=self.findAvailableTimes, args=(session_requests, loc, dateStr, timeSlots))
findTimeThread.start()
self.logger.info(f"Trying to reschedule for {dateStr} at {loc}...")
_delay = 0.1
for i in range(9):
self.logger.debug(f"Getting reschedule page...")
url = f"https://ais.usvisa-info.com/en-il/niv/schedule/{self.scheduleId}/appointment"
getRes = session_requests.get(url, headers={'User-Agent': 'Mozilla/5.0'})
if getRes.status_code == 200:
tree = html.fromstring(getRes.text)
findTimeThread.join()
hdrs = {
"User-Agent": "Mozilla/5.0",
"Cookies": getRes.headers["Set-Cookie"],
"Referer": url
}
payload = {
"authenticity_token": list(set(tree.xpath("//input[@name='authenticity_token']/@value")))[0],
"confirmed_limit_message": "1",
"use_consulate_appointment_capacity": "true",
"appointments[consulate_appointment][facility_id]": loc,
"appointments[consulate_appointment][date]": dateStr,
"appointments[consulate_appointment][time]": "",
}
reschedRes = self.doReschedulePost(timeSlots, url, payload, hdrs, session_requests)
return reschedRes
elif getRes.status_code != 429:
raise OtherHttpException()
self.logger.debug(f"[Getting reschedule page] Sleeping for {_delay}...")
sleep(_delay)
_delay = _delay * 1.7
except Exception as ex:
self.logger.warning(f"Couldn't reschedule: {ex}")
return False
def hunt(self):
session_requests = requests.session()
while True:
self.logger.info("Logging in...")
res, session_requests = self.login(session_requests)
if res.status_code != 200:
self.logger.warning(f"Login failed. Status_code: {res.status_code}.")
sleep(self.delaytmr)
else:
counter = 0
while True:
try:
for loc in self.locations:
earliestDate = self.findEarliest(session_requests, loc)
counter = counter + 1
ordinal = earliestDate.toordinal() - datetime.now().toordinal()
shortStr = earliestDate.strftime("%Y-%m-%d")
self.logger.debug(f"Attempt #{counter:4}. Earliest found: {shortStr} (in {ordinal} days) @ {loc}")
if earliestDate < self.bestDate:
rescheduleRes = self.reschedule(session_requests, loc, shortStr)
if rescheduleRes:
self.bestDate = earliestDate
sleep(self.delay)
except TooManyRequestsException as ex:
self.logger.debug("Too many requests. Sleeping...")
sleep(self.delaytmr)
except BlockedException as ex:
self.logger.warning(f"Blocked. Waiting... ")
sleep(60*60*4)
except OtherHttpException as ex:
self.logger.warning(f"Something else. Error: {ex}. ")
break
except Exception as ex:
self.logger.warning(f"Exception: {ex}")
break
def main(argv):
parser = optparse.OptionParser()
parser.add_option("-u", dest="username", help="Username for the AIS account", metavar="[email protected]")
parser.add_option("-p", dest="password", help="Password to the AIS account", metavar="4vrhef34erf")
parser.add_option("-s", dest="scheduleId", help="A number representing the schedule ID of your request", metavar="32835621")
parser.add_option("-c", dest="currentDate", help="The current date of the appointment in yyyy-mm-dd format", metavar="2023-03-24")
parser.add_option("-l", dest="locations", help="Consular section locations. Use F12 on the Schedule Appointments screen. Support multiple values", metavar="96,97")
parser.add_option("-i", "--delay", dest="delay", help="Seconds to wait between requests", default=3)
parser.add_option("-t", "--delaytmr", dest="delaytmr", help="Seconds to wait after TooManyRequests (429) before retry", default=10)
try:
(options, args) = parser.parse_args()
if options.username is None or options.password is None or options.scheduleId is None or options.currentDate is None or options.locations is None:
raise optparse.OptionError("Missing required options", "")
usvisa = USVisa(options.username, options.password, options.scheduleId, datetime.strptime(options.currentDate, "%Y-%m-%d"), options.locations.split(","), int(options.delay), int(options.delaytmr))
usvisa.hunt()
except optparse.OptionError as ex:
parser.print_help()
if __name__ == '__main__':
sys.exit(main(sys.argv))