sojweb

THIS IS FOR DEVELOPMENT PURPOSES, NOT FOR USE ON PRODUCTION SITES
This plugin is meant to be a reference; I’ve talked to several people who have similar setups, and thought it would beneficial to share some code.
This plugin allows users to be authenticated via CAS, and logins to be controlled via LDAP. Default user roles can be assigned based on LDAP group membership, and accounts can be auto-created for users that exist in LDAP, but not yet in WordPress.
It assumes that, for CAS authentication, the user is redirected to an outside address, then back to the referring address; that’s how it works where I’m at :-). You can also specify a group in LDAP that will always have admin privileges; useful for tech staff.
Before the plugin is used, the constants in <code>soj-ldap_constants.inc.php</code> must be filled out. The CAS default password is the one the user is registered with in WordPress; so all WP users will have this password. Be aware of that. There is obviously more that could be done there, and I’m happy to work with others who have ideas.
I’ve adapted this from an in-house plugin I made, so there might be leftover code bits or things that look strange… feel free to harass me about that, I did this in a bit of a rush.
I’ve only ever used this plugin on one environment, so it might not work out-of-the-box for you. I’m interested in making this plugin more robust, however, so please let me know of any issues.
Contact me: jj56@indiana.edu

SoJ CAS/LDAP Login

This plugin allows users to be authenticated via CAS, and logins to be controlled via LDAP.

Alain-Aymerick FRANCOIS

vbonamy

If you’re happy with this plugin : 
As a reward for my efforts, I would like to receive T-shirts (or other goodies) as gifts from the universities or companies that use it. 
My size is L. Best regards.
This Apereo CAS authentication plugin has no phpCas library dependency. This is not only an authentication plugin. 
You can build custom authorization rules according to cas user attributes populated. If user don’t exist in WordPress 
database, it can be created automatically. There are many features. You can customize everything.
<h4>Website</h4>
https://wpcassify.wordpress.com/
<h4>Development and release environment</h4>
This plugin is now developed and tested from a github repository. You can find it here : 
https://github.com/WP-Cassify/wp-cassify-develop
Don’t hesitate to contribute to this project. You can fork it and make pull requests !
<h4>Requirements</h4>
<ul>
<li>Require at least PHP version 7.0</li>
<li>Require at least PHP CURL package</li>
</ul>
<h4>Features included</h4>
<ul>
<li>SLO (Single Log Out) support (thanks to dedotombo and me)</li>
<li>Adding NCONTAINS operator (thanks to blandman)</li>
<li>Fix bug on Gateway mode (autologin) (thanks to dedotombo again). Now it’s now necessary to hack theme files to fire it.</li>
<li>Adding option logout on authentication failure to not disturb users</li>
<li>Initialize PHP session at a later stage (on wp_loaded not on init)</li>
<li>
Adding some customs hooks and filters.
</li>
<li>
Tested with Apereo CAS Server version 7.3.5
</li>
<li>Compatible with CAS Protocol version 2 and 3</li>
<li>Automatic user creation if not exist in WordPress database.</li>
<li>Synchronize WordPress User metas with CAS User attributes.</li>
<li>Add support for multivaluate cas user fields. Now multivaluate fields can be serialized to be stored in custom WP User meta.</li>
<li>Backup / Restore plugin configuration options settings</li>
<li>You can choose CAS User attributes you want to populate. Then you can access them via PHP Session.</li>
<li>
Be careful, to access to CAS User Attributes from your theme file (from 1.8.4), use code below :
<pre><code><?php
 if ( isset($GLOBALS['wp-cassify']) ) {
 print_r( $GLOBALS['wp-cassify']->wp_cassify_get_cas_user_datas() );
 }
?>
</code></pre>
</li>
<li>
Set up WordPress Roles to User according to CAS User attributes.
</li>
<li>If plugin is network activated, you can define User Role Rule scope by blog id.</li>
<li>Authorization rule editor.</li>
<li>Compatible with WordPress Access Control Plugin.</li>
<li>Manage URL White List to bypass CAS Authentication on certain pages.</li>
<li>
Much simpler bypass authentication with post method provided by Susan Boland (See online documentation). Create wordpress authentication form with redirect attribute like this (works only if URL bypass is enabled in settings) :
<pre><code><?php

 $args = array(
 'echo' => true,
 'remember' => true,
 'redirect' => site_url( '/?wp_cassify_bypass=bypass' ),
 'form_id' => 'loginform',
 'id_username' => 'user_login',
 'id_password' => 'user_pass',
 'id_remember' => 'rememberme',
 'id_submit' => 'wp-submit',
 'label_username' => __( 'Username' ),
 'label_password' => __( 'Password' ),
 'label_remember' => __( 'Remember Me' ),
 'label_log_in' => __( 'Log In' ),
 'value_username' => '',
 'value_remember' => false
 );

 wp_login_form( $args ); 
?>
</code></pre>
</li>
<li>
Receive email notifications when trigger is fired (after user account creation, after user login/logout).
</li>
<li>Define notifications rules based on user attributes values.</li>
<li>Purge user roles before applying user role rules.</li>
<li>Define user account expiration rules bases on CAS User attributes.</li>
<li>Network activation allowed</li>
<li>You can set Service Logout URL (Needs to have CAS Server with followServiceRedirects option configured).</li>
<li>Add support for web application hosted behind a reverse proxy. (Thanks to franck86)</li>
<li>Add custom hooks : wp_cassify_after_cas_authentication, wp_cassify_before_auth_user_wordpress, wp_cassify_before_redirect, wp_cassify_after_redirect. (See online documentation)</li>
<li>Custom filter to perform custom cas server response parsing. Hook name : wp_cassify_custom_parsing_cas_xml_response (See online documentation)</li>
<li>Custom shortcode to generate CAS login/logout link into your blog. (See online documentation)</li>
<li>Debug settings, dump last xml cas server response.</li>
<li>Detect if user has already authenticated by CAS from your public pages and perform auto-login with gateway mode</li>
<li>
Add ‘-IN’ and ‘-NOTIN’ operators to process array attributes values returned from CAS. 
When you have :
<pre><code>$cas_user_datas['title'] = array( 'Student', 'Professor' );
</code></pre>
</li>
</ul>
Then you can use :
<pre><code> (CAS{title} -IN "professor")
</code></pre>

WP Cassify

The plugin is an Apereo CAS Client. It performs CAS authentication and autorization for Wordpress.

SoJ CAS/LDAP Login vs WP Cassify