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.. Copyright (C) 2024 CERN.

Invenio-CERN-sync is free software; you can redistribute it and/or modify it
under the terms of the MIT License; see LICENSE file for more details.

Invenio-CERN-sync

Integrates CERN databases and SSO login with Invenio.

SSO login

This module provides configurable integration with the CERN SSO login.

To integrate the CERN SSO, add this to your application configuration:

from invenio_cern_sync.sso import cern_remote_app_name, cern_keycloak
OAUTHCLIENT_REMOTE_APPS = {
    cern_remote_app_name: cern_keycloak.remote_app,
}

CERN_APP_CREDENTIALS = {
    "consumer_key": "CHANGE ME",
    "consumer_secret": "CHANGE ME",
}

from invenio_cern_sync.sso.api import confirm_registration_form
OAUTHCLIENT_SIGNUP_FORM = confirm_registration_form

OAUTHCLIENT_CERN_REALM_URL = cern_keycloak.realm_url
OAUTHCLIENT_CERN_USER_INFO_URL = cern_keycloak.user_info_url
OAUTHCLIENT_CERN_VERIFY_EXP = True
OAUTHCLIENT_CERN_VERIFY_AUD = False
OAUTHCLIENT_CERN_USER_INFO_FROM_ENDPOINT = True

Define, use the env var to inject the right configuration for your env (local, prod, etc.):

  • INVENIO_CERN_SYNC_KEYCLOAK_BASE_URL
  • INVENIO_SITE_UI_URL

Sync users and groups

You can sync users and groups from the CERN AuthZ service or LDAP with the local Invenio db.

First, decide what fields you would like to get from the CERN database. By default, only the field in invenio_cern_sync.users.profile.CERNUserProfileSchema are kept when syncing.

If you need to customize that, you will need to:

  1. Provide your own schema class, and assign it the config var ACCOUNTS_USER_PROFILE_SCHEMA
  2. Change the mappers, to serialize the fetched users from the CERN format to your local format. If you are using AuthZ, assign your custom serializer func to CERN_SYNC_AUTHZ_USERPROFILE_MAPPER. If you are using LDAP, assign it to CERN_SYNC_LDAP_USERPROFILE_MAPPER.
  3. You can also customize what extra data can be stored in the RemoteAccount.extra_data fields via the config CERN_SYNC_AUTHZ_USER_EXTRADATA_MAPPER or CERN_SYNC_LDAP_USER_EXTRADATA_MAPPER.

If are only using the CERN SSO as unique login method, you will probably also configure:

ACCOUNTS_DEFAULT_USER_VISIBILITY = True
ACCOUNTS_DEFAULT_EMAIL_VISIBILITY = True

AuthZ

In your app, define the following configuration:

CERN_SYNC_KEYCLOAK_BASE_URL = "<url>"
CERN_SYNC_AUTHZ_BASE_URL = "<url>"

The above CERN_APP_CREDENTIALS configuration must be already configured. You will also need to make sure that those credentials are allowed to fetch the entire CERN database of user and groups.

Then, create a new celery task and sync users:

from invenio_cern_sync.users.sync import sync

def sync_users_task():
    user_ids = sync(method="AuthZ")
    # you can optionally pass extra kwargs for the AuthZ client APIs.

    # make sure that you re-index users if needed. For example, in InvenioRDM:
    # from invenio_users_resources.services.users.tasks import reindex_users
    # reindex_users.delay(user_ids)

To fetch groups:

from invenio_cern_sync.groups.sync import sync

def sync_groups_task():
    roles_ids = sync()

LDAP

You can use LDAP instead. Install this module with the ldap extra dependency:

pip install invenio-cern-sync[ldap]

Define the LDAP url:

CERN_SYNC_LDAP_URL = <url>

Then, create a new celery task and sync users:

from invenio_cern_sync.users.sync import sync

def sync_users_task():
    user_ids = sync(method="LDAP")
    # you can optionally pass extra kwargs for the LDAP client APIs.