pferd/sync_url.py

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#!/usr/bin/env python
"""
A simple script to download a course by name from ILIAS.
"""
import argparse
from pathlib import Path
from urllib.parse import parse_qs, urlparse
from PFERD import Pferd
from PFERD.cookie_jar import CookieJar
from PFERD.ilias.authenticators import KitShibbolethAuthenticator
from PFERD.ilias.crawler import IliasCrawler
from PFERD.utils import to_path
def main() -> None:
parser = argparse.ArgumentParser()
parser.add_argument("--test-run", action="store_true")
parser.add_argument('-c', '--cookies', nargs='?', default=None, help="File to store cookies in")
parser.add_argument('url', help="URL to the course page")
parser.add_argument('folder', nargs='?', default=None, help="Folder to put stuff into")
args = parser.parse_args()
# parse provided course URL
url = urlparse(args.url)
query = parse_qs(url.query)
course_id = query['ref_id'][0]
if args.folder is not None:
folder = args.folder
# Initialize pferd at the *parent of the passed folder*
# This is needed so Pferd's internal protections against escaping the working directory
# do not trigger (e.g. if somebody names a file in ILIAS '../../bad thing.txt')
pferd = Pferd(Path(Path(__file__).parent, folder).parent, test_run=args.test_run)
else:
# fetch course name from ilias
cookie_jar = CookieJar(to_path(args.cookies) if args.cookies else None)
session = cookie_jar.create_session()
authenticator = KitShibbolethAuthenticator()
crawler = IliasCrawler(url.scheme + '://' + url.netloc, session,
authenticator, lambda x, y: True)
cookie_jar.load_cookies()
folder = crawler.find_element_name(args.url)
cookie_jar.save_cookies()
# Initialize pferd at the location of the script
pferd = Pferd(Path(__file__).parent, test_run=args.test_run)
pferd.enable_logging()
# fetch
pferd.ilias_kit(target=folder, course_id=course_id, cookies=args.cookies)
if __name__ == "__main__":
main()