CLARIN SPF

Utility package to login to CLARIN's SPF and then collect the required session cookies for the login. These cookies can then be used to call the APIs of services that require authorization. Note that the pop-up login occurs in an isolated browser environment so no personal information or cookies are ever collected or used or even read.

The cookies are stored in locally in a file (by default in ~/.cache/clarin/cookies.json) and can be re-used for future requests. If they expire, the login window will automatically pop up again.

Installation

You can install the package from PyPI but you will also have to install the necessary browser utilities via playwright.

pip install clarin-spf
playwright install chromium --with-deps

For development:

git clone https://github.com/BramVanroy/clarin-spf
cd clarin-spf
pip install -e .[dev]
playwright install chromium --with-deps

Usage

Once you have logged in by initializing the ClarinRequester class, you can use the get, post, put, and delete methods to make requests to the CLARIN services. Depending on how long the cookies are valid you will not have to login again for quite some time, improving usability greatly. The cookies will be automatically added to the request headers for all future requests. When at some point that does not work anymore, you will be redirected to login again. The request methods are identical to the requests package.

from clarin_spf import ClarinRequester

base_url = "https://portal.clarin.ivdnt.org/galahad"
clarin = ClarinRequester(trigger_url=base_url)
response = clarin.get(f"{base_url}/api/user").json()

print(f"Found user: {response['id']}")

See example usages in examples/.

To do

• Investigate feasibility of using a headless browser
• Investigate feasibility of running in notebooks
• Investigate feasibility of running in CI/CD
• Full MyPy compatible type hints
• Add more tests where applicable
• Improve handling of cookies: when they expire, the requests.get call will fail and just return HTML for the CLARIN discovery login. Incorporate common operations such as get, post, put, delete in the ClarinCredentials class, and when a json parse occurs, trigger a re-login request?