commit ba93950cb72ca73d261577a9d3f5e9e8044d4085
Author: Edward Betts <edward@4angle.com>
Date:   Wed Sep 6 07:57:12 2023 +0100

    Initial commit

diff --git a/check.py b/check.py
new file mode 100755
index 0000000..cf2f77a
--- /dev/null
+++ b/check.py
@@ -0,0 +1,102 @@
+#!/usr/bin/python3
+
+"""Check if conference websites are live."""
+
+import re
+import smtplib
+from email.mime.text import MIMEText
+from email.utils import formatdate, make_msgid
+
+import requests
+
+re_title = re.compile("<title>(.*?)</title>")
+
+AGENT = "Mozilla/5.0 (Windows NT 6.1) Gecko/20100101 Firefox/29.0"
+headers = {"User-Agent": AGENT, "Accept": "text/html"}
+
+s = requests.Session()
+s.headers.update(headers)
+
+MAIL_FROM = "edward@4angle.com"
+MAIL_TO_NAME = "Edward Betts"
+MAIL_TO_ADDRESS = "edward@4angle.com"
+SMTP_HOST = "4angle.com"
+
+not_here_list = [
+    "The specified URL was not found.",
+    "There is currently no text in this page.",
+    "This page does not exist yet",
+    "404 Not Found",
+]
+
+conferences = [
+    #    ("FOSDEM", "https://fosdem.org/2024"),
+    ("PyCascades", "https://2024.pycascades.com/"),
+    ("foss-north", "https://foss-north.se/2024"),
+    ("Wikimedia Hackathon", "https://www.mediawiki.org/wiki/Wikimedia_Hackathon_2024"),
+    ("FOSS4G", "https://2024.foss4g.org/"),
+    ("FOSS4G Europe", "https://2024.europe.foss4g.org/"),
+    ("FOSSY", "https://2024.fossy.us/"),
+    #    ("North Bay Python", "https://2024.northbaypython.org/"),
+    ("DebConf", "https://wiki.debian.org/DebConf/24"),
+    ("State of the Map US", "https://2024.stateofthemap.us/"),
+    ("WikiConference North America", "https://wikiconference.org/wiki/2024/Main_Page"),
+    ("PyCon DE", "https://2024.pycon.de/"),
+    ("PyData London", "https://pydata.org/london2024"),
+    ("Pass the SALT", "https://2024.pass-the-salt.org/"),
+]
+
+
+def find_not_here_message(html: str) -> str | None:
+    """Find not here message in web page."""
+    return next((not_here for not_here in not_here_list if not_here in html), None)
+
+
+def get_title(html: str) -> str:
+    """Title from web page."""
+    m = re_title.search(html)
+    return m.group(1) if m and m.group(1) else "no title"
+
+
+def check_conference(name: str, url: str) -> tuple[bool, str]:
+    """Check if conference is live."""
+    try:
+        r = s.get(url)
+    except requests.exceptions.ConnectionError:
+        return (False, "connection refused")
+
+    not_here = find_not_here_message(r.text)
+    return (False, not_here) if not_here else (True, get_title(r.text))
+
+
+def send_mail(subject: str, body: str) -> None:
+    """Send an e-mail."""
+    mail_from = MAIL_FROM
+    msg = MIMEText(body, "plain", "UTF-8")
+
+    msg["Subject"] = subject
+    msg["To"] = f"{MAIL_TO_NAME} <{MAIL_TO_ADDRESS}>"
+    msg["From"] = f"Edward Betts <{mail_from}>"
+    msg["Date"] = formatdate()
+    msg["Message-ID"] = make_msgid()
+    # msg["X-4angle"] = "conference"
+
+    s = smtplib.SMTP(SMTP_HOST)
+    s.sendmail(mail_from, [MAIL_TO_ADDRESS], msg.as_string())
+    s.quit()
+
+
+def main(show_not_live: bool = False) -> None:
+    """Check each conference."""
+    for name, url in conferences:
+        live, msg = check_conference(name, url)
+        if live or show_not_live:
+            print(f"{name}: {msg}")
+        if not live:
+            continue
+        body = f"{name}\n{url}\nWeb page title: {msg}"
+        send_mail(f"Conference site live: {name}", body)
+
+
+if __name__ == "__main__":
+    main()