convert.py

import requests
from granary import atom, jsonfeed, microformats2, rss

USER_AGENT = "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36"

feeds = [
    "https://jamesg.blog",
    "https://jamesg.blog/feeds/posts.xml",
    "https://granary.io/url?input=html&output=atom&url=https://jamesg.blog",
    "https://granary.io/url?input=html&output=jsonfeed&url=https://jamesg.blog"
]

FEED_IDENTIFICATION = {
    "rss+xml": rss.to_activities,
    "atom+xml": atom.atom_to_activities,
    "html": microformats2.html_to_activities,
    "feed+json": jsonfeed.jsonfeed_to_activities,
    "json": jsonfeed.jsonfeed_to_activities,
    "mf2+json": microformats2.json_to_activities,
}

CONVERSION_FUNCTION = jsonfeed.activities_to_jsonfeed

for feed in feeds:
    try:
        resp = requests.get(
            feed, headers={"User-Agent": USER_AGENT}, allow_redirects=True
        )
    except requests.RequestException:
        print("Failed to fetch", feed)
        continue

    if resp.status_code != 200:
        print("Failed to fetch", feed, "with status code", resp.status_code)
        continue

    content_type = resp.headers.get("Content-Type", "").split(";")[0].split("/")[1]

    if content_type not in FEED_IDENTIFICATION:
        print("Unsupported feed type", content_type)
        continue

    if content_type in ["json", "feed+json"]:
        activities = CONVERSION_FUNCTION(FEED_IDENTIFICATION[content_type](resp.json())[0])
    else:
        activities = CONVERSION_FUNCTION(FEED_IDENTIFICATION[content_type](resp.text))

    print("Fetched", feed, "with", len(activities), "activities using feed type", content_type)