67 lines
1.6 KiB
Python
Executable file
67 lines
1.6 KiB
Python
Executable file
#!/usr/bin/python3
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"""Update GWR advance ticket date cache."""
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import os.path
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import smtplib
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import sys
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from email.message import EmailMessage
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from email.utils import formatdate, make_msgid
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import requests
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from agenda import gwr
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config = __import__("config.default", fromlist=[""])
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def send_mail(subject: str, body: str) -> None:
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"""Send an e-mail."""
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msg = EmailMessage()
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msg["Subject"] = subject
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msg["To"] = f"{config.NAME} <{config.MAIL_TO}>"
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msg["From"] = f"{config.NAME} <{config.MAIL_FROM}>"
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msg["Date"] = formatdate()
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msg["Message-ID"] = make_msgid()
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# Add extra mail headers
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for header, value in config.getattr("MAIL_HEADERS", []):
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msg[header] = value
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msg.set_content(body)
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s = smtplib.SMTP(config.SMTP_HOST)
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s.sendmail(config.MAIL_TO, [config.MAIL_TO], msg.as_string())
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s.quit()
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def main() -> None:
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"""Get date from web page and compare with existing."""
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filename = os.path.join(config.DATA_DIR, "advance-tickets.html")
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existing_html = open(filename).read()
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existing_date = gwr.extract_weekday_date(existing_html)
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new_html = requests.get(gwr.url).text
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open(filename, "w").write(new_html)
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new_date = gwr.extract_weekday_date(new_html)
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if existing_date == new_date:
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if sys.stdin.isatty():
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print("date has't changed:", existing_date)
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return
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subject = f"New GWR advance ticket booking date: {new_date}"
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body = f"""Old date: {existing_date}
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New date: {new_date}
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{gwr.url}
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Agenda: https://edwardbetts.com/agenda/
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"""
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send_mail(subject, body)
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if __name__ == "__main__":
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main()
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