Download a password protected file from CloudStor / ownCloud / NextCloud on the commandline

grab_from_cloudstor_pw_protect.py

#!/usr/bin/env python3

# https://colab.research.google.com/drive/1CGOygPAmjTxWnmsywv178dh3u36ZRBgv

# You'll need to install the `robobrowser` Python package.
# Do it in a virtualenv like:
#
# python3 -m venv ~/.virtualenvs/cloudstor
# source ~/.virtualenvs/cloudstor/activate
# pip3 install robobrowser
# python3 grab_from_cloudstor_pw_protect.py

import werkzeug
werkzeug.cached_property = werkzeug.utils.cached_property

import re
from robobrowser import RoboBrowser

url = 'https://cloudstor.aarnet.edu.au/plus/s/JYLaiEf6Osv7YDQ/download'
password = 'xxx'
output_filename = 'file.tar.gz'
chunk_size = 512

browser = RoboBrowser(history=True)
browser.open(url)

form = browser.get_form()

form['password'].value = password
browser.submit_form(form)

with open(output_filename, 'wb') as f:
    # TODO: Catch OSError (ECONNRESET) and other 
    # timeout / connectivity related exceptions in here, restart / retry as required.
    # (ideally continue with an HTTP Range request)
    with browser.session.request('GET', url, stream=True) as r:
      for chunk in r.iter_content(chunk_size=chunk_size):
          f.write(chunk)