Add simple course-download-by-url script

sync_url.py

@@ -0,0 +1,46 @@
+#!/usr/bin/env python
+
+import argparse
+from pathlib import Path
+from urllib.parse import urlparse, parse_qs
+
+from PFERD import Pferd
+from PFERD.cookie_jar import CookieJar
+from PFERD.utils import to_path
+from PFERD.ilias.authenticators import KitShibbolethAuthenticator
+from PFERD.ilias.crawler import IliasCrawler
+
+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()
+
+    pferd = Pferd(Path(__file__).parent, test_run=args.test_run)
+    pferd.enable_logging()
+
+    # parse provided course URL
+    url = urlparse(args.url)
+    query = parse_qs(url.query)
+    id = int(query['ref_id'][0])
+
+    if args.folder is None:
+        # 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_course_name(id)
+        cookie_jar.save_cookies()
+    else:
+        folder = args.folder
+
+    # fetch
+    pferd.ilias_kit(target=folder, course_id=str(id), cookies=args.cookies)
+
+if __name__ == "__main__":
+    main()