Print the YouTube URLs for a Ubicast.tv videos RSS feed

ubicast.tv-download-feed.py

#!/usr/bin/env python3

# Take a Ubicast.tv RSS feed (usually found on channel pages) and print all the YouTube links available for the video. Said list can be fed into youtube-dl so videos can be watched offline
# Author: Samat Jain <samat@samat.org>
# License: GPLv3

import re
import sys

import feedparser
import requests

rs = requests.session()

def determine_ubicast_domain(url):
    '''Determine the Ubicast subdomain we are using, and return it'''
    r = re.compile('//((.*)\.ubicast.tv)')
    domain = r.search(url).groups()[0]
    return domain


def go(feed_url):
    fpo = feedparser.parse(requests.get(feed_url).text)

    videos_list = []

    for item in fpo.entries:
        videos_list.append(item.link)

    r = re.compile('modes_url = "(.*?)";')

    modes_urls = []

    for video in videos_list:
        page_html = rs.get(video).text
        modes_url = r.search(page_html).groups()[0]
        modes_urls.append(modes_url)

    base_domain = determine_ubicast_domain(feed_url)

    youtube_urls = []

    for modes_url in modes_urls:
        modes_url_qualified = 'http://%s%s' % (base_domain, modes_url)
        modes_url_doc = rs.get(modes_url_qualified)
        youtube_urls.append(modes_url_doc.json['modes']['youtubehd']['flash']['yturl'])

    return youtube_urls


if __name__ == '__main__':
    feed_url = sys.argv[1]
    youtube_urls = go(feed_url)

    for url in youtube_urls:
        print(url)