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# -*- coding: utf-8 -*-
import requests
from bs4 import BeautifulSoup
from bvggrabber.api import QueryApi, Departure
ACTUAL_QUERY_API_ENDPOINT = 'http://mobil.bvg.de/IstAbfahrtzeiten/index/mobil'
class ActualDepartureQueryApi(QueryApi):
def __init__(self, station):
super(ActualDepartureQueryApi, self).__init__()
if isinstance(station, str):
self.station_enc = station.encode('iso-8859-1')
elif isinstance(station, bytes):
self.station_enc = station
else:
raise ValueError("Invalid type for station")
self.station = station
def call(self):
params = {'input': self.station_enc}
response = requests.get(ACTUAL_QUERY_API_ENDPOINT, params=params)
if response.status_code == requests.codes.ok:
soup = BeautifulSoup(response.text)
if soup.find_all('form'):
# The station we are looking for is ambiguous or does not exist
stations = soup.find_all('option')
if stations:
# The station is ambiguous
stationlist = [s.get('value') for s in stations]
return (False, stationlist)
else:
# The station does not exist
return (False, [])
else:
# The station seems to exist
rows = soup.find('tbody').find_all('tr')
departures = []
for row in rows:
tds = row.find_all('td')
dep = Departure(start=self.station,
end=tds[2].text.strip(),
line=tds[1].text.strip())
departures.append(dep)
return (True, departures)
else:
response.raise_for_status()
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