Tested SAML Identity Providers

SimpleSAML

No known limitations.

Active Directory Federation Services (ADFS)

In AD FS Management:

1. Adding a Relying Party Trust "HumHub"
2. Import metadata.xml (Downloaded from SAML Module Settings)
3. Add transformation claim rules "AD-Mapping"

Attribute Store: Active Directory

• URL rewriting must be activated.

Make also sure the checkbox SP: Use deprecated entity ID in the SAML configuration is not checked!

Keycloak

• Install client using Metadata File
• Disable: (Realm) -> Client Scopes -> role_list (saml) -> Mappers tab -> role list -> 'Single Role Attribute'.

Okta

Currently, the SLO (Single Logout) does not work correctly.

Advanced SAML settings

In addition to the settings possible in the SAML configuration dialog, further settings can also be made in the configuration file.

The used OneLogin SAML library offers a wide range of additional configuration options.

An example overview of possible settings can be found here:

• https://github.com/onelogin/php-saml/blob/master/advanced_settings_example.php
• https://github.com/onelogin/php-saml/blob/master/settings_example.php

HumHub Configuration file (protected/config/common.php):

<?php
return [
    // ...
    'modules' => [
        'saml-sso' => [
            'advancedSettings' => [
                // Begin: Custom Settings ****************************************************************
                'compress' => [
                    // ...
                ],
                    
                'security' => [
                    // ...
                ]
                // End: Custom Settings *******************************************************************
            ],
        ]
    ],
    // ...
];

Encrypted and Signed SP messages

Create a self-signed certificate.

openssl req -newkey rsa:3072 -new -x509 -days 3652 -nodes -out saml.crt -keyout saml.pem

Add the contents of the file

• `saml.pem in the input field SP: Private key`
• `saml.crt in the input field SP: X.509 certificate`

of the SAML configuration.

Cookie Configuration

We recommend that you disable the feature for SameSite cookies at this time, otherwise you may experience problems with some older Safari browsers.

Example of @humhub/protected/config/web.php:

<?php
//...
$config => [
  // ...
  'components' => [  
      'session' => [
            'cookieParams' => [
                'sameSite' => null,
            ],
      ],
  ],
  //...
];

Dependencies / Module Requirements

• php >= 5.3.3 and some core extensions like php-xml, php-date, php-zlib.
• openssl. Install the openssl library. It handles x509 certificates.
• mcrypt. Install that library and its php driver if you're going to handle encrypted data (nameID, assertions).
• gettext. Install that library and its php driver. It handles translations.
• curl. Install that library and its php driver if you plan to use the IdP Metadata parser.

Since PHP 5.3 is officially unsupported we recommend you to use a newer PHP version.