do http calls with requests

rssbot.py

@@ -4,6 +4,7 @@ import argparse
 import time
 import traceback
 import feedparser
+import requests
 from threading import Thread, Condition
 from matrix_client.errors import MatrixRequestError
 from matrix_client.client import MatrixClient
@@ -149,10 +150,23 @@ Invite me to any room on {homeserver} and use the custom state event <code>de.ev
                 if url in feeds]
 
     def _fetch_feed(self, url):
-        # FIXME: one site with slow response times can block all feeds
         print('Fetching updates from {}'.format(url))
         try:
-            feed = feedparser.parse(url)
+            response = requests.get(url, timeout=10)
+        except requests.RequestException as e:
+            print(f'error fetching feed {url}: {e}')
+            return
+
+        if response.status_code != 200:
+            print(f'error fetching feed {url}, got status {response.status_code}.')
+            return
+
+        feed = feedparser.parse(response.text)
+
+        if feed.bozo:
+            print(f'error parsing feed {url}: {feed.bozo_exception}.')
+            return
+
         feed_title = feed.feed.title
         to_be_sent = []
         any_knowns = False
@@ -184,9 +198,6 @@ Invite me to any room on {homeserver} and use the custom state event <code>de.ev
             print(raw)
             for room in self.get_rooms_for_feed(url):
                 room.send_html(html, raw, 'm.notice')
-        except Exception:
-            print('Failed to parse feed {}: {}'
-                  .format(url, traceback.format_exc()))
 
     def run(self):
         self._fetch_thread.start()