Login with email (WP Modal Login)

I’m trying to fork this plugin to use the user email to login, as opposed to Username.

The plugin is http://wordpress.org/plugins/wp-modal-login/

Is there a nice way to do this, perhaps by a filter to get this plugin to work with email credentials?

I’ve tried using this filter:

function custom_login() {
  $data = array();        
  $data['user_login']     = sanitize_user( $_REQUEST['username'] );
  $data['user_email']     = sanitize_user( $_REQUEST['user_email'] );
  $data['user_password']  = sanitize_text_field( $_REQUEST['password'] );
  $data['rememberme']     = sanitize_text_field( $_REQUEST['rememberme'] );
  $data['user_login']     = sanitize_user( $_REQUEST['user_email'] );
  $user = wp_signon( $creds, false );
  if ( is_wp_error($user) )
    echo $user->get_error_message();
}
// run it before the headers and cookies are sent
add_action( 'after_setup_theme', 'custom_login' );

I’m using this simple action, and it works like a charm. 🙂

<?php
/** Plugin Name: (#111223) User Login with Mail Address */
    add_action( 'wp_authenticate', 'wpse111223_login_with_email_address' );
function wpse111223_login_with_email_address( $username ) {
    $user = get_user_by_email( $username );
    if ( ! empty( $user->user_login ) )
        $username = $user->user_login;

    return $username;
}

It hooks to wp_authenticate and enables email login to the WordPress Authentication system, so it should work with any plugin. I use it successfully with Login with Ajax plugin.

🙂

Later-edit: For those who don’t know where to put the snippet of code, it should go in your theme’s functions.php or a custom plugin.