Seguimiento Bluex

bluex.py

from json import JSONDecodeError
import requests
import time

# Importante: instalar requests! Solo python 3!

ua = 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.157 Safari/537.36'
apikey = ''  # API key de telegram
tg_endpoint = 'https://api.telegram.org/bot{apikey}/{method}'
tg_channel = ''  # Canal de telegram donde enviar los mensajes
bluex_seg = '' # Código de seguimiento de bluex
bluex_api = 'http://www.bluex.cl/PortalPublico/nacional.xhtml?documentos='+bluex_seg
current_data = ''

def find_str(cont, ini, end):
    try:
        idx_ini = cont.index(ini) + len(ini)
        idx_end = cont[idx_ini:].index(end) + idx_ini
        return cont[idx_ini:idx_end]
    except ValueError:
        return None


def telegram_call(method, payload=None):
    if payload is None:
        payload = {}

    response = requests.post(tg_endpoint.format(apikey=apikey, method=method), json=payload)
    return response


if __name__ == '__main__':
    while True:
        try:
            print('cargando datos...')
            req = requests.get(bluex_api, headers={'User-Agent': ua})
            print('datos cargados')
            data = req.text
            new_data = find_str(data, 'tableCaption">Detalle Progreso</span>', '</t')
            new_time = find_str(data, 'tableCaption">Fecha Últ. Evento</span>', '</t')
            print(new_data, new_time)

            if new_data and new_data != current_data:
                print(new_data)
                msg = f'Nuevo estado seguimiento {bluex_seg}: "{new_data}" ({new_time})'
                r = telegram_call('sendMessage', {'chat_id': tg_channel, 'text': msg})
                current_data = new_data+''
            else:
                print('no se encontraron nuevos datos')

            time.sleep(60)
        except (JSONDecodeError, requests.exceptions.RequestException):
            print('error de json o requests, esperando 10 segundos')
            time.sleep(10)
        except KeyboardInterrupt:
            print('bye')
            break