Daniel Bachhuber

Chris Reynolds

John Spellman

Pantheon Systems

Josh Koenig

Anais Pantheor

<p>SAML authentication for WordPress, using the bundled OneLogin SAML library or optionally installed <a href="https://simplesamlphp.org/" rel="nofollow ugc">SimpleSAMLphp</a>. OneLogin provides a SAML authentication bridge; SimpleSAMLphp provides SAML plus a variety of other authentication mechanisms. This plugin acts as a bridge between WordPress and the authentication library.</p>
<p>If your organization uses Google Apps, <a href="https://pantheon.io/docs/wordpress-google-sso/" rel="nofollow ugc">integrating Google Apps with WP SAML Auth</a> takes just a few steps.</p>
<p>The standard user flow looks like this:</p>
<ul>
<li>User can log in via SAML using a button added to the standard WordPress login view.</li>
<li>When the button is clicked, the user is handed off to the authentication library. With OneLogin, the user is redirected to the SAML identity provider. With SimpleSAMLphp, the user is redirected to the SimpleSAMLphp install.</li>
<li>Once the user is authenticated with the identity provider, they’re redirected back to WordPress and signed in to their account. A new WordPress user will be created if none exists (although this behavior can be disabled).</li>
<li>When the user logs out of WordPress, they are also logged out of the identity provider.</li>
</ul>
<p>A set of configuration options allow you to change the plugin’s default behavior. For instance, <code>permit_wp_login=>false</code> will force all authentication to go through the SAML identity provider, bypassing <code>wp-login.php</code>. Similiarly, <code>auto_provision=>false</code> will disable automatic creation of new WordPress users.</p>
<p>See installation instructions for full configuration details.</p>
<h3>Installing SimpleSAMLphp</h3>
<p>The plugin supports both SimpleSAMLphp v1.x and v2.x. The autoloader is automatically detected:</p>
<p><strong>SimpleSAMLphp v2.x</strong> uses <code>vendor/autoload.php</code><br />
<strong>SimpleSAMLphp v1.x</strong> uses <code>lib/_autoload.php</code></p>
<h4>Default Search Paths</h4>
<p>The plugin automatically searches for SimpleSAMLphp in these locations:<br />
* <code>ABSPATH . 'simplesaml'</code><br />
* <code>ABSPATH . 'private/simplesamlphp'</code><br />
* <code>ABSPATH . 'simplesamlphp'</code><br />
* <code>ABSPATH . 'vendor/simplesamlphp/simplesamlphp'</code> (Composer installation)<br />
* <code>plugin_dir_path . 'simplesamlphp'</code></p>
<p>For each path, the plugin checks for both <code>vendor/autoload.php</code> (v2.x) and <code>lib/_autoload.php</code> (v1.x).</p>
<p><strong>This means Composer installations work automatically!</strong> If you run <code>composer require simplesamlphp/simplesamlphp</code> in your site root, the plugin will find it without any additional configuration.</p>
<h4>Composer Installation (Advanced)</h4>
<p>If you install SimpleSAMLphp via Composer to a <strong>custom location</strong> (not the standard <code>vendor/simplesamlphp/simplesamlphp</code>), you can specify the autoloader path:</p>
<pre><code>add_filter( 'wp_saml_auth_option', function( $value, $option_name ) {
    if ( 'simplesamlphp_autoload' === $option_name ) {
        // Point to your custom Composer vendor autoloader
        return '/custom/path/vendor/autoload.php';
    }
    return $value;
}, 10, 2 );
</code></pre>
<h4>Custom Installation Paths</h4>
<p>If SimpleSAMLphp is installed in a non-default location, you can set custom search paths with the <code>wp_saml_auth_simplesamlphp_path_array</code> filter:</p>
<pre><code>add_filter( 'wp_saml_auth_simplesamlphp_path_array', function( $simplesamlphp_path_array ) {
    // Override default paths with custom paths
    return [ '/custom/path/to/simplesamlphp' ];
} );
</code></pre>
<p>Or define an explicit autoloader path with the <code>wp_saml_auth_ssp_autoloader</code> filter:</p>
<pre><code>add_filter( 'wp_saml_auth_ssp_autoloader', function( $ssp_autoloader ) {
    return ABSPATH . 'path/to/simplesamlphp/vendor/autoload.php';
} );<h3>WP-CLI Commands</h3>
</code></pre>
<p>This plugin implements a variety of <a href="https://wp-cli.org" rel="nofollow ugc">WP-CLI</a> commands. All commands are grouped into the <code>wp saml-auth</code> namespace.</p>
<pre><code>$ wp help saml-auth

NAME

  wp saml-auth

DESCRIPTION

  Configure and manage the WP SAML Auth plugin.

SYNOPSIS

  wp saml-auth <command>

SUBCOMMANDS

  scaffold-config      Scaffold a configuration filter to customize WP SAML Auth usage.
</code></pre>
<p>Use <code>wp help saml-auth <command></code> to learn more about each command.</p>
<p><strong>Note:</strong> The <code>scaffold-config</code> command generates a configuration function with default values. The <code>simplesamlphp_autoload</code> option is not included in the scaffolded output because the plugin auto-detects SimpleSAMLphp installations. Only add this option manually if SimpleSAMLphp is in a non-standard location.</p>
<h3>Contributing</h3>
<p>See <a href="https://github.com/pantheon-systems/wp-saml-auth/blob/main/CONTRIBUTING.md" rel="nofollow ugc">CONTRIBUTING.md</a> for information on contributing.</p>


WP SAML Auth

mitcho (Michael Yoshitaka Erlewine)

Will Norris

Brian Haas

Junaid Ahmed

bshelton229

michaelryanmcneill

Dan Dalpiaz

deric.crago

Jonathan Champ

alhrath

<p>This plugin is designed to support integrating your WordPress site into your existing identity management infrastructure using a <a href="https://incommon.org/software/shibboleth/" rel="nofollow ugc">Shibboleth</a> Service Provider.</p>
<p>WordPress can be configured so that all standard login requests will be sent to your configured Shibboleth Identity Provider or Discovery Service.  Upon successful authentication, a new WordPress account will be automatically provisioned for the user if one does not already exist. User attributes (username, first name, last name, display name, nickname, and email address) can be synchronized with your enterprise’s system of record each time the user logs into WordPress.</p>
<p>Finally, the user’s role within WordPress can be automatically set (and continually updated) based on any attribute Shibboleth provides.  For example, you may decide to give users with an eduPersonAffiliation value of <em>faculty</em> the WordPress role of <em>editor</em>, while the eduPersonAffiliation value of <em>student</em> maps to the WordPress role <em>contributor</em>.  Or you may choose to limit access to WordPress altogether using a special eduPersonEntitlement value.</p>
<h4>Contribute on GitHub</h4>
<p>This plugin is actively maintained by <a href="https://profiles.wordpress.org/michaelryanmcneill" rel="nofollow ugc">michaelryanmcneill</a> and the WordPress community, <a href="https://github.com/michaelryanmcneill/shibboleth" rel="nofollow ugc">using GitHub</a>. Contributions are welcome, via pull request, <a href="https://github.com/michaelryanmcneill/shibboleth" rel="nofollow ugc">on GitHub</a>. Issues can be submitted <a href="https://github.com/michaelryanmcneill/shibboleth/issues" rel="nofollow ugc">on the issue tracker</a>.</p>


Shibboleth

We had no trouble installing and configuring the plugin. When we ran into an issue, it was no trouble to interact with the plugin authors. 

This plugin just works

Allows WordPress to externalize user authentication and account creation to a Shibboleth Service Provider.

WP SAML Auth vs Shibboleth