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Improve Exception handling, and catch explicit Exceptions

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This commit improves Exception handling, and made some changes to
try/catch blocks, where the `KeyError` is now explicitly caught. If in
the future, we have reports of other Exceptions being caught, we can
include those in the handling.

For now, I've used BaseException for two try/catch blocks. I need to
check what exceptions can happen there.

Signed-off-by: Dom Rodriguez <shymega@shymega.org.uk>
This commit is contained in:
Dom Rodriguez 2022-09-13 18:48:35 +01:00
parent 1460f92f02
commit df52406dfe
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GPG Key ID: 72DCF1231E54BD43
1 changed files with 12 additions and 13 deletions
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rssingle.py
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@ -70,9 +70,8 @@ def init_feed() -> None:
fg.link(href=get_url_from_feed(CONFIG), rel="self")
fg.subtitle(CONFIG["description"])
fg.language("en")
except:
log.error("Error initialising the feed!")
sys.exit(1)
except BaseException: # find out what exceptions FeedGenerator can cause as well as KeyError.
logging.exception("Error initialising the feed!")
log.debug("Feed initialised!")
@ -85,7 +84,7 @@ def parse_rss_feed(url) -> feedparser.FeedParserDict:
try:
# Hopefully this should parse..
return feedparser.parse(url)
except Exception:
except BaseException: # find out what exceptions .parse() call can cause.
log.warning("Failed to parse RSS feed.")
# Now, we could handle gracefully.
@ -108,21 +107,21 @@ def main():
try:
fe.id(entry["id"])
except:
# Deifnitely weird...
except KeyError:
# Definitely weird...
log.warning("Empty id attribute, defaulting..")
fe.id("about:blank")
try:
fe.title(entry["title"])
except:
except KeyError:
# OK, this is a definite malformed feed!
log.warning("Empty title attribute, defaulting..")
fe.title("Unspecified")
try:
fe.link(href=entry["link"])
except:
except KeyError:
# When we have a empty link attribute, this isn't ideal
# to set a default value.. :/
log.warning("Empty link attribute, defaulting..")
@ -136,12 +135,12 @@ def main():
try:
for author in entry["authors"]:
fe.author(author)
except:
except KeyError:
log.debug("Oh dear, a malformed feed! Adjusting.")
# This is a ugly hack to fix broken feed entries with the author attribute!
author["email"] = author.pop("href")
fe.author(author)
except:
except KeyError:
# Sometimes we don't have ANY author attributes, so we
# have to set a dummy attribute.
log.warning("Empty authors attribute, defaulting..")
@ -155,7 +154,7 @@ def main():
fe.description(entry["description"])
fe.summary(entry["description"])
fe.content(entry["description"])
except:
except KeyError:
# Sometimes feeds don't provide a summary OR description, so we
# have to set an empty value.
# This is pretty useless for a feed, so hopefully we
@ -169,11 +168,11 @@ def main():
try:
fe.published(entry["published"])
fe.updated(entry["published"])
except:
except KeyError:
fe.published("1970-01/01T00:00:00+00:00")
fe.updated("1970-01/01T00:00:00+00:00")
continue
except:
except KeyError:
# Sometimes feeds don't even provide a publish date, so we default to
# the start date &time of the Unix epoch.
log.warning("Empty publish attribute, defaulting..")