User cloudscraper

check.py

@@ -2,6 +2,7 @@
 
 """Check if conference websites are live."""
 
+import html
 import os
 import re
 import smtplib
@@ -11,6 +12,7 @@ from email.mime.text import MIMEText
 from email.utils import formatdate, make_msgid
 from urllib.parse import urlparse, urlunparse
 
+import cloudscraper
 import requests
 import yaml
 from requests.adapters import HTTPAdapter
@@ -53,8 +55,14 @@ re_title = re.compile("<title>(.*?)</title>", re.DOTALL)
 AGENT = config["browser"]["User-Agent"]
 headers = {"User-Agent": AGENT, "Accept": "text/html"}
 
-s = requests.Session()
-s.headers.update(headers)
+s = cloudscraper.CloudScraper()
+s_no_dot = cloudscraper.CloudScraper()
+
+# s = requests.Session()
+# s.headers.update(headers)
+
+# s_no_dot = requests.Session()
+# s_no_dot.headers.update(headers)
 
 # Create a session and mount the custom adapter for both HTTP and HTTPS requests.
 adapter = AbsoluteDNSAdapter()
@@ -82,7 +90,7 @@ not_here_list = [
     "Ooops! Could Not Find It",
     "OpenStreetMap Authentication Proxy",
     "Error 404",
-    "Under Construction",
+    # "Under Construction",
     "Page not found",
     "Error 404: Page not found",
     "Barcamptools",
@@ -93,18 +101,23 @@ not_here_list = [
     "You are not authorized to access this page",
     "Attention Required! | Cloudflare",
     "This page doesn't currently exist",
+    "ERROR 503 - Service Unavailable",
+    "ERROR 503",
+    "401 Authorization Required",
+    "Authorization Required",
+    "used Cloudflare to restrict access",
 ]
 
 
-def find_not_here_message(html: str) -> str | None:
+def find_not_here_message(page_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)
+    return next((not_here for not_here in not_here_list if not_here in page_html), None)
 
 
-def get_title(html: str) -> str:
+def get_title(page_html: str) -> str:
     """Title from web page."""
-    m = re_title.search(html)
-    return m.group(1).strip() if m and m.group(1) else "no title"
+    m = re_title.search(page_html)
+    return html.unescape(m.group(1).strip()) if m and m.group(1) else "no title"
 
 
 def normalize_url(url: str) -> str:
@@ -128,9 +141,10 @@ def check_conference(
     """Check if conference is live."""
     url = src_url.format(year=year)
     past_url = src_url.format(year=year - 1)
+    no_dot = {"bsideskbh.dk", "pif.camp"}
+    session = s if all(hostname not in url for hostname in no_dot) else s_no_dot
     try:
-        # SotM Baltics has an invalid TLS certificate, but we don't care
-        r = s.get(url, verify=False)
+        r = session.get(url)
     except requests.exceptions.ConnectionError:
         return (False, "connection refused", None)