Create local users in each subdomain

Thanks for the reply, but not really.

I wonder if it is possible add a prefix or suffix to the user/login name when a user is created with a subdomain..? Does anyone know of such a plugin?

No response from anyone using Shibboleth sign-on? (Do I need to make another post asking..?)

Right, I’ve managed to break Shibboleth login! 🙁

Looks like the WP Email Login plugin is breaking Shib – anyone know why and how to fix this?

The idea is that (if I can get prefix/suffix added to a created user, then they can login using their email instead of an odd login name. But if the email login breaks Shib, then it won’t work.

Has anyone got any suggestions?

Thanks for the reply and suggestion (was beginning to think I was just talking to myself!) I’ve tried various pieces of code and have not made any success 🙁

I have found that if I insert the following code:

$hostAddress = explode('.',$_SERVER['HTTP_HOST']);
        $user .= '_' . $hostAddress[0];

directly into the function wpmu_signup_user in the file wp-includes/ms-functions, it does what I want, as:

function wpmu_signup_user($user, $user_email, $meta = '') {
        global $wpdb;

        $hostAddress = explode('.',$_SERVER['HTTP_HOST']);
        $user .= '_' . $hostAddress[0];

        // Format data
        $user = preg_replace( '/\s+/', '', sanitize_user( $user, true ) );
        $user_email = sanitize_email( $user_email );
        $key = substr( md5( time() . rand() . $user_email ), 0, 16 );
        $meta = serialize($meta);

        $wpdb->insert( $wpdb->signups, array(
                'domain' => '',
                'path' => '',
                'title' => '',
                'user_login' => $user,
                'user_email' => $user_email,
                'registered' => current_time('mysql', true),
                'activation_key' => $key,
                'meta' => $meta
        ) );

        wpmu_signup_user_notification($user, $user_email, $key, $meta);
}

Unfortunately this is not a plugin, as I have struggled to find the appropriate hook and code to do this job. Any ideas what the hook and the plugin code would be to do the same thing?

Thanks for that. I thought I had already tried that and it did work. So I tried it again and… nope does not work for some reason. My code is in a plugin file which fixes the ‘login name must be a minimum of 4 characters’ error, and an email login code which works. (Included here in case anyone want these problems fixed too…)

<?php
/*
Plugin Name: Email Login, Remove Min 4 Chars Login Name, Add Subdomain Suffix
Plugin URI:
Description: Does all of the above!
Author: sontru
Version: 1.3.0
Author URI:
*/

function login_with_email_address($username) {
        $user = get_user_by_email($username);
        if(!empty($user->user_login))
                $username = $user->user_login;
        return $username;
}
add_action('wp_authenticate','login_with_email_address');

function remove_username_char_limit($result) {
  if ( is_wp_error( $result[ 'errors' ] ) && !empty( $result[ 'errors' ]->errors ) ) {

    // Get all the error messages from $result
    $messages = $result['errors']->get_error_messages();
    $i = 0;
    foreach ( $messages as $message ) {

      // Check if any message is the char limit message
      if ( 0 == strcasecmp("Username must be at least 4 characters.", $message)) {
        // Unset whole 'user_name' error array if only 1 message exists
        // and that message is the char limit error
        if ( 1 == count($messages) ) {
          unset( $result['errors']->errors['user_name'] );
        } else {
          // Otherwise just unset the char limit message
          unset( $result['errors']->errors['user_name'][$i] );
        }
      }

      $i++;
    }
  }

  return $result;
}
add_action('wpmu_validate_user_signup', 'remove_username_char_limit');

function add_suffix_to_login($user, $user_email, $meta = '')
{
        $hostAddress = explode('.',$_SERVER['HTTP_HOST']);
        $user .= '_' . $hostAddress[0];
        return $user;
}
add_action('wpmu_signup_user', 'add_suffix_to_login',10,3);

?>

<strike>Is there a different between a calling add_action before defining the function and after it?</strike> Just tried this and no difference – still does not have the desired effect.

Nope. The code being:

function add_suffix_to_login($user, $user_email, $meta = '')
{
//        $hostAddress = explode('.',$_SERVER['HTTP_HOST']);
        $user .= '_'; // . $hostAddress[0];
        return $user;
}
add_action('wpmu_signup_user', 'add_suffix_to_login',10,3);

and no underscore is added. In fact, this code does not even work:

function add_suffix_to_login($user, $user_email, $meta = '')
{
//        $hostAddress = explode('.',$_SERVER['HTTP_HOST']);
//        $user .= '-' . $hostAddress[0];
        $user = 'testusersontru';
        return $user;
}
add_action('wpmu_signup_user', 'add_suffix_to_login',10,3);

which means the function is not being called. I’m a newbie at this but is there a hook for this function ‘wpmu_signup_user’ for the action to be added?

Is that a no? What can I do instead? Is hacking ms-functions.php my only choice?