20) {
add_settings_error('authcode_settings', 'authcode_code', 'Authentication code cannot be longer than 20 characters.', $type = 'error');
return false;
} elseif(strlen($options['code']) < 3) {
add_settings_error('authcode_settings', 'authcode_code', 'Authentication code cannot be shorter than 3 characters.', $type = 'error');
return false;
} else {
add_settings_error('authcode_settings', 'authcode_code', 'Settings saved.', $type = 'updated');
}
} else {
add_settings_error('authcode_settings', 'authcode_code', 'Authentication code has been disabled.', $type = 'updated');
}
}
return $options;
}
add_action('admin_notices', 'authcode_admin_notices');
function authcode_admin_notices() {
settings_errors();
}
function authcode_page() {
?>
';
}
}
add_action( 'wp_authenticate', 'authcode_check', 5 );
function authcode_check($username) {
$options = get_option( 'authcode_settings' );
if(!empty($options['code'])) {
global $wpdb;
if ( !username_exists( $username ) ) {
return;
}
$set_code = $options['code'];
$submit_code = $_POST['auth_key'];
if(empty($submit_code)) {
wp_die( __( 'The authentication code was empty.', 'authcode' ) );
} elseif ( ! ( $set_code == $submit_code ) ) {
wp_die( __( 'The authentication code was invalid.', 'authcode' ) );
}
}
}
function authcode_css() {
$options = get_option( 'authcode_settings' );
if(!empty($options['code'])) {
?>