Plugins

Radicale can be extended by plugins for authentication, rights management and storage. Plugins are python modules.

Getting started

To get started we walk through the creation of a simple authentication plugin, that accepts login attempts if the username and password are equal.

The easiest way to develop and install python modules is Distutils. For a minimal setup create the file setup.py with the following content in an empty folder:

#!/usr/bin/env python3

from distutils.core import setup

setup(name="radicale_silly_auth", packages=["radicale_silly_auth"])

In the same folder create the sub-folder radicale_silly_auth. The folder must have the same name as specified in packages above.

Create the file __init__.py in the radicale_silly_auth folder with the following content:

from radicale.auth import BaseAuth


class Auth(BaseAuth):
    def is_authenticated(self, user, password):
        # Example custom configuration option
        foo = ""
        if self.configuration.has_option("auth", "foo"):
            foo = self.configuration.get("auth", "foo")
        self.logger.info("Configuration option %r is %r", "foo", foo)

        # Check authentication
        self.logger.info("Login attempt by %r with password %r",
                         user, password)
        return user == password

Install the python module by running the following command in the same folder as setup.py:

python3 -m pip install --upgrade .

To make use this great creation in Radicale, set the configuration option type in the auth section to radicale_silly_auth:

[auth]
type = radicale_silly_auth
foo = bar

You can uninstall the module with:

python3 -m pip uninstall radicale_silly_auth

Authentication plugins

This plugin type is used to check login credentials. The module must contain a class Auth that extends radicale.auth.BaseAuth. Take a look at the file radicale/auth.py in Radicale’s source code for more information.

Rights management plugins

This plugin type is used to check if a user has access to a path. The module must contain a class Rights that extends radicale.rights.BaseRights. Take a look at the file radicale/rights.py in Radicale’s source code for more information.

Web plugins

This plugin type is used to provide the web interface for Radicale. The module must contain a class Web that extends radicale.web.BaseWeb. Take a look at the file radicale/web.py in Radicale’s source code for more information.

Storage plugins

This plugin is used to store collections and items. The module must contain a class Collection that extends radicale.storage.BaseCollection. Take a look at the file radicale/storage.py in Radicale’s source code for more information.