Handle HTTP errors gracefully

fabcal/calendar_client.py

@@ -1,4 +1,5 @@
 import asyncio
+import logging
 import os
 
 from collections import OrderedDict
@@ -58,11 +59,25 @@ class CombinedCalendarClient:
         self.configured_calendars = configured_calendars
 
     async def fetch_calendars(self) -> Dict[ConfiguredCalendar, str]:
-        async with aiohttp.ClientSession() as session:
-            calendar_clients = [CalendarClient(calendar.url) for calendar in self.configured_calendars]
-            responses = await asyncio.gather(*[calendar.get(session) for calendar in calendar_clients])
+        async with aiohttp.ClientSession(headers={
+            "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:135.0) Gecko/20100101 Firefox/135.0",
+        }) as session:
+            # need to make sure we return the calendar and the gathered values together
+            async def coro(calendar):
+                print("argh", calendar)
+                return calendar, await CalendarClient(calendar.url).get(session)
 
-        return dict(zip(self.configured_calendars, responses))
+            rv = {}
+
+            for coro in asyncio.as_completed([coro(calendar) for calendar in self.configured_calendars]):
+                try:
+                    cal, response = await coro
+                    rv[cal] = response
+
+                except aiohttp.client_exceptions.ClientResponseError:
+                    logging.exception("Failed to fetch data for calendar, skipping")
+
+            return rv
 
     @staticmethod
     def combine_calendars(data: Dict[ConfiguredCalendar, str]) -> Calendar: