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Python library to interact with the Univention UDM REST API. Implements the simple Python UDM API.

Project description

Python UDM REST Client

Python 3.6+ GNU AGPL V3 license Code style: black Code coverage Documentation Status travisci

Python library to interact with the Univention UDM REST API, implements the interface of the Python UDM API.

Features

  • Asynchronous
  • Automatic handling of HTTP(S) sessions
  • Type annotations
  • 100% test coverage (unittests + integration tests)
  • Python 3.6, 3.7, 3.8

Usage

The UDM context manager opens and closes a HTTP session:

>>> from udm_rest_client.udm import UDM
>>>
>>> async def get_obj(mod_name, dn):
...     async with UDM(
...         "USERNAME",
...         "PASSWORD",
...         "https://FQDN.OF.UCS/univention/udm",
...         ssl_ca_cert="ucs-root-ca.crt"
...     ) as udm:
...         mod = udm.get(mod_name)
...         return await mod.get(dn)
...
>>> import asyncio
>>> obj = asyncio.run(get_obj("users/user", "uid=foo,cn=users,BASE-DN"))
>>> print(obj)
UdmObject('users/user', 'uid=foo,cn=users,BASE-DN')
>>> print(obj.props.username)
foo

There are more examples in the docs usage section.

If the SSL CA certificate is not available verify_ssl=False can be used in place of ssl_ca_cert=.... Obviously that is not safe! The CA of any UCS server can always be downloaded from http://FQDN.OF.UCS/ucs-root-ca.crt.

Installation

  1. Install Python UDM REST Client from pip:

    $ pip install udm-rest-client
    
  2. Install the OpenAPI client library used by the udm-rest-client. It is created by software from the OpenAPI Generator project. You need to either have a local Java installation (Java 8+) or run the projects Docker container. The process is scripted:

    $ update_openapi_client --generator docker ucs.master.fqdn.or.ip  # use Docker
    $ update_openapi_client --generator java ucs.master.fqdn.or.ip  # use Java
    

Use --insecure to ignore SSL verification errors. See --help for more options.

Important: Whenever a new UDM module is installed in the domain, it is necessary to rerun update_openapi_client. The new UDM module will otherwise not be available in the Python UDM REST Client. Very few apps (like UCS@school and Open-Xchange) install new UDM modules. New extended attributes do not require to rebuild the OpenAPI client library.

Tests

There are some isolated unittests, but most tests run against a real UDM REST API. A UCS Docker container is used for this. The Makefile automates downloading and starting the Docker container (1 GB) and running the tests.

Run tests with current Python interpreter:

$ make test

Using tox the tests can be executed with all supported Python versions:

$ make test-all

It is also possible to use an existing UCS server for the tests. Export UCS_HOST (the servers IP/FQDN), UCS_USERDN (the DN of an administrator account, usually uid=Administrator) and UCS_PASSWORD (the accounts password), before starting the tests:

$ export UCS_HOST="my.server.local"
$ export UCS_USERDN="uid=Administrator,cn=users,dc=domain,dc=local"
$ export UCS_PASSWORD="s3cr3t"
$ make test

Don’t forget to update the OpenAPI client library before running the test against a new server:

$ update_openapi_client --generator <docker|java> $UCS_HOST

To get the IP address of the UCS Docker container run:

$ docker inspect --format='{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' udm_rest_only

Logging

Standard logging is used for tracking the libraries activity. To capture the log messages for this project, subscribe to a logger named udm_rest_client.

The UDM REST API on the UCS server logs into the file /var/log/univention/directory-manager-rest.log.

Credits

This package was created with Cookiecutter and the audreyr/cookiecutter-pypackage project template.

History

0.1.1 (2019-11-25)

  • allow specifying existing JAR for open api client build
  • various small fixes to handle RTD and Travis-CI

0.1.0 (2019-11-22)

  • First release.

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