def execute(self):
url = "https://kyfw.12306.cn/otn/leftTicket/query"
params = self.__get_query_params()
json = webrequest.get_json(url, params=params)
try:
json_data = json["data"]
except RequestError as ex:
if ex.args[0] == "选择的查询日期不在预售日期范围内":
raise DateOutOfRangeError() from ex
raise
logger.debug("Got train list from {0} to {1} on {2}".format(
self.departure_station.name,
self.destination_station.name,
timeconverter.date_to_str(self.date)))
train_list = []
station_list = StationList.instance()
for train_data in json_data:
query_data = train_data["queryLeftNewDTO"]
departure_station = station_list.get_by_id(query_data["from_station_telecode"])
destination_station = station_list.get_by_id(query_data["to_station_telecode"])
if self.exact_departure_station and departure_station != self.departure_station:
continue
if self.exact_destination_station and destination_station != self.destination_station:
continue
train = Train(train_data, departure_station, destination_station, self.pricing, self.date)
train_list.append(train)
return train_list
def __get_query_params(self):
return [
("leftTicketDTO.train_date", timeconverter.date_to_str(self.date)),
("leftTicketDTO.from_station", self.departure_station.id),
("leftTicketDTO.to_station", self.destination_station.id),
("purpose_codes", TicketPricing.SEARCH_LOOKUP[self.pricing])
]
def __get_query_params(self):
return [
("leftTicketDTO.train_date", timeconverter.date_to_str(self.date)),
("leftTicketDTO.from_station", self.departure_station.id),
("leftTicketDTO.to_station", self.destination_station.id),
("purpose_codes", "ADULT"),
("randCode", self.captcha.answer)
]
def __get_price_query_params(self):
return [
("train_no", self.id),
("from_station_no", self.departure_index),
("to_station_no", self.destination_index),
("seat_types", self.data["seat_types"]),
("train_date", timeconverter.date_to_str(self.departure_time))
]
def __get_train_data_query_params(train):
return [
("train_no", train.id),
("from_station_telecode", train.departure_station.id),
("to_station_telecode", train.destination_station.id),
# Apparently you're not supposed to use the actual
# train date here, not the date returned in the
# train query data. And yes, they can be different.
("depart_date", timeconverter.date_to_str(train.data["alt_date"]).strftime("%Y%m%d"))
]
def select_train_date(auto):
invalid_date_printer = lambda ex: localization.INVALID_DATE.format(
timeconverter.date_to_str(datetime.datetime.now())
)
return prompt_value_use_config(
prompt=localization.ENTER_DATE,
input_parser=timeconverter.str_to_date,
error_handler=invalid_date_printer,
config_key=auto and "date"
)
def query(station_list, retry, auto):
# Construct query object
query_obj = TrainQuery()
query_obj.date = select_train_date(auto)
query_obj.departure_station = select_departure_station(station_list, auto)
query_obj.destination_station = select_destination_station(station_list, auto)
query_obj.exact_departure_station = config.get("exact_departure_station", False)
query_obj.exact_destination_station = config.get("exact_destination_station", False)
filter_obj = create_train_filters()
sorter_obj = create_train_sorters()
custom_filter = config.get("custom_filter")
custom_sorter = config.get("custom_sorter")
sleep_time = config.get("search_retry_rate", 1)
while True:
try:
# Get raw train list
train_list = query_obj.execute()
except DateOutOfRangeError:
# Invalid date provided, prompt the user for a new one
print(localization.DATE_OUT_OF_RANGE.format(timeconverter.date_to_str(query_obj.date)))
# Forcibly disable auto mode, to avoid re-using an
# invalid date again
query_obj.date = select_train_date(False)
continue
# Now we filter the resulting list
original_count = len(train_list)
train_list = filter_obj.filter(train_list)
if custom_filter is not None:
custom_filter(train_list)
filtered_count = len(train_list)
# Make sure there's at least one train
if filtered_count == 0:
if original_count > 0:
print(localization.ALL_TRAINS_FILTERED.format(original_count))
if retry:
print(localization.RETRYING_SEARCH.format(sleep_time))
time.sleep(sleep_time)
continue
else:
return None
else:
print(localization.NO_TRAINS_FOUND)
return None
# After filtering the trains, we sort the list
sorter_obj.sort(train_list)
if custom_sorter is not None:
custom_sorter(train_list)
return train_list
def __get_query_params(self):
return [
("leftTicketDTO.train_no", self.__data__[self.date][self.train_name]),
("leftTicketDTO.train_date", timeconverter.date_to_str(self.date)),
("rand_code", self.captcha.answer)
]