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openproject/docs/development/saml
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README.md

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[{title SAML development setup} {priority 920}] index, follow

Set up a development SAML idP

Note: This guide is targeted only at development with OpenProject. For the SAML configuration guide, please see this URL: https://www.openproject.org/docs/system-admin-guide/authentication/saml/

To test the SAML integration in your development setup, you can use the following repository: https://github.com/kristophjunge/docker-test-saml-idp

The following guide will provide insights how to set it up in your OpenProject development instance.

Prerequisites

  • A working docker installation
  • A development setup of OpenProject (or any other configurable installation)

Running the SAML idP

We need to run the SimpleSAMLphp idP contained in the docker container. We only extend it slightly by giving the user configuration file more attributes so that OpenProject can pick it up. The default users configuration is lacking some of the default attributes OpenProject expects.

Create a new folder saml-idp and switch to it

mkdir saml-idp && cd saml-idp

Create a file users.php with the following content

<?php
$config = array(

  'admin' => array(
    'core:AdminPassword',
  ),

  'example-userpass' => array(
    'exampleauth:UserPass',
    'user1:user1pass' => array(
      'uid' => 'user1',
      'givenName' => 'foo',
      'sn' => 'bar',
      'eduPersonAffiliation' => array('group1'),
      'email' => 'user1@example.com',
    ),
    'user2:user2pass' => array(
      'uid' => 'user2',
      'givenName' => 'user',
      'sn' => 'second',
      'eduPersonAffiliation' => array('group2'),
      'email' => 'user2@example.com',
    ),
  ),

);

You can now run the docker container and the updated configuration with this command.

docker run \
-p 8080:8080 \
-p 8443:8443 \
-e SIMPLESAMLPHP_SP_ENTITY_ID=http://localhost:3000 \
-e SIMPLESAMLPHP_SP_ASSERTION_CONSUMER_SERVICE=http://localhost:3000/auth/saml/callback \
-e SIMPLESAMLPHP_SP_SINGLE_LOGOUT_SERVICE=http://localhost:3000/auth/saml/slo \
-v $(pwd)/users.php:/var/www/simplesamlphp/config/authsources.php \
--network host \
kristophjunge/test-saml-idp

If you're not using a development installation of OpenProject, you'll need to change the ENV variables slightly:

docker run \
-p 8080:8080 \
-p 8443:8443 \
-e SIMPLESAMLPHP_SP_ENTITY_ID=http://<YOUR OPENPROJECT HOSTNAME> \
-e SIMPLESAMLPHP_SP_ASSERTION_CONSUMER_SERVICE=http://<YOUR OPENPROJECT HOSTNAME>/auth/saml/callback \
-e SIMPLESAMLPHP_SP_SINGLE_LOGOUT_SERVICE=http://<YOUR OPENPROJECT HOSTNAME>/auth/saml/slo \
-v $(pwd)/users.php:/var/www/simplesamlphp/config/authsources.php \
--network host \
kristophjunge/test-saml-idp

Configure OpenProject for SAML

On the OpenProject side, you'll have to configure SAML to connect to the just started idP service:

Here's a minimal configuration that you can put into config/configuration.yml

default:
  saml:
    name: "saml"
    display_name: "simplesaml-docker"
    # Use the default SAML icon
    icon: "auth_provider-saml.png"
    # omniauth-saml config
    assertion_consumer_service_url: "http://localhost:3000/auth/saml/callback"
    issuer: "http://localhost:3000"
    idp_cert_fingerprint: "119b9e027959cdb7c662cfd075d9e2ef384e445f"
    idp_sso_target_url: "http://localhost:8080/simplesaml/saml2/idp/SSOService.php"
    idp_slo_target_url: "http://localhost:8080/simplesaml/saml2/idp/SingleLogoutService.php"
    attribute_statements:
      email: ['email']
      login: ['uid']
      first_name: ['givenName']
      last_name: ['sn']

Here, again you will have to change the hostname localhost:3000 with the hostname of your OpenProject installation, and the iDP host name if you're not running both locally. I'd recommed to run both locally though for simplicity.

Restart OpenProject and you'll see a login button "simplesaml-docker". You will redirected to the simplesaml-php docker container and can login with either:

  • login: user1, password: user1pass
  • login: user2, password: user2pass