source: sites/trunk/wordpress.org/public_html/wp-content/themes/pub/wporg-login/register.php

<?php
/**
 * The new registration Template
 *
 * @package wporg-login
 */

$user_login       = isset( $_POST['user_login'] ) ? trim( wp_unslash( $_POST['user_login'] ) ) : '';
$user_email       = isset( $_POST['user_email'] ) ? trim( wp_unslash( $_POST['user_email'] ) ) : '';
$user_mailinglist = isset( $_POST['user_mailinglist'] ) && 'true' == $_POST['user_mailinglist'];
$terms_of_service = isset( $_POST['terms_of_service'] ) ? $_POST['terms_of_service'] : false;

if ( ! $user_login && ! empty( WP_WPOrg_SSO::$matched_route_params['user'] ) ) {
        $user_login = trim( WP_WPOrg_SSO::$matched_route_params['user'] );
}

// Already logged in.. Warn about duplicate accounts, etc.
if ( is_user_logged_in() ) {
        wp_safe_redirect( home_url( '/linkexpired/register-logged-in' ) );
        exit;
}

$error_user_login = $error_user_email = $error_recapcha_status = $terms_of_service_error = false;
if ( $_POST ) {

        /** This filter is documented in wp-includes/user.php */
        $user_login = apply_filters( 'pre_user_login', $user_login );

        /** This filter is documented in wp-includes/user.php */
        $user_email = apply_filters( 'pre_user_email', $user_email );

        $error_user_login = rest_do_request( new WP_REST_Request( 'GET', '/wporg/v1/username-available/' . urlencode( $user_login ) ) );
        if ( $error_user_login->get_data()['available'] ) {
                $error_user_login = false;
        }

        $error_user_email = rest_do_request( new WP_REST_Request( 'GET', '/wporg/v1/email-in-use/' . urlencode( $user_email ) ) );
        if ( $error_user_email->get_data()['available'] ) {
                $error_user_email = false;
        }

        // Don't validate that it's equal to the current revision, just that they've agreed to one.
        // Let the post-login interstitial handle TOS updates at time of registration.
        $terms_of_service_error = ! $terms_of_service || $terms_of_service > TOS_REVISION;

        // handle user registrations.
        if ( ! $error_user_login && ! $error_user_email && ! $terms_of_service_error ) {

                $recaptcha = wporg_login_check_recapcha_status( 'register', false /* Allow low scores to pass through */ );

                if ( ! $recaptcha ) {
                        $error_recapcha_status = true;
                } else {
                        $tos_meta_key = WPOrg_SSO::TOS_USER_META_KEY;
                        $meta = [
                                'user_mailinglist' => $user_mailinglist,
                                $tos_meta_key      => $terms_of_service,
                        ];

                        wporg_login_create_pending_user( $user_login, $user_email, $meta );
                        die();
                }
        }

}

wp_enqueue_script( 'wporg-registration' );

get_header();
?>

<p class="intro"><?php _e( 'Create a WordPress.org account to start contributing to WordPress, get help in the support forums, or rate and review themes and plugins.', 'wporg' ); ?></p>

<form name="registerform" id="registerform" action="/register" method="post">

        <p class="login-username">
                <label for="user_login"><?php _e( 'Username', 'wporg' ); ?></label>
                <input type="text" name="user_login" id="user_login" class="input <?php if ( $error_user_login ) echo 'error'; ?>" value="<?php echo esc_attr( $user_login ) ?>" size="20" maxlength="60" />
                <span class="small"><?php _e( 'Only lower case letters (a-z) and numbers (0-9) are allowed.', 'wporg' ); ?></span>
        </p>
        <?php
        if ( $error_user_login ) {
                printf(
                        '<div class="message error%s"><p>%s<span>%s</span></p></div>',
                        $error_user_login->get_data()['avatar'] ? ' with-avatar' : '',
                        $error_user_login->get_data()['avatar'],
                        $error_user_login->get_data()['error']
                );
        }
        ?>

        <p class="login-email">
                <label for="user_email"><?php _e( 'Email', 'wporg' ); ?></label>
                <input type="email" name="user_email" id="user_email" class="input <?php if ( $error_user_email ) echo 'error'; ?>" value="<?php echo esc_attr( $user_email ) ?>" size="20" maxlength="100" />
                <span class="small"><?php _e( 'A link to set your password will be sent here.', 'wporg' ); ?></span>
        </p>
        <?php
        if ( $error_user_email ) {
                printf(
                        '<div class="message error%s"><p>%s<span>%s</span></p></div>',
                        $error_user_email->get_data()['avatar'] ? ' with-avatar' : '',
                        $error_user_email->get_data()['avatar'],
                        $error_user_email->get_data()['error']
                );
        }
        ?>

        <p class="login-tos checkbox <?php if ( $terms_of_service_error ) { echo 'message error'; } ?>">
                <label for="terms_of_service">
                        <input name="terms_of_service" type="checkbox" id="terms_of_service" value="<?php echo esc_attr( TOS_REVISION ); ?>" <?php checked( $terms_of_service, TOS_REVISION ); ?> required="required">
                        <?php
                                $localised_domain = parse_url( wporg_login_wordpress_url(), PHP_URL_HOST );
                                printf(
                                        /* translators: %s: List of linked policies, for example: <a>Privacy Policy</a> and <a>Terms of Service</a> */
                                        _n( 'I have read and accept the %s.', 'I have read and accept the %s.', 1, 'wporg' ),
                                        wp_sprintf_l( '%l', [
                                                "<a href='https://{$localised_domain}/about/privacy/'>" . __( 'Privacy Policy', 'wporg' ) . '</a>',
                                                // "<a href='https://{$localised_domain}/about/terms-of-service/'>" . __( 'Terms of Service', 'wporg' ) . '</a>',
                                                // "<a href='https://{$localised_domain}/about/code-of-conduct/'>" . __( 'Code of Conduct', 'wporg' ) . '</a>',
                                        ] )
                                )
                        ?>
                </label>
        </p>

        <p class="login-mailinglist checkbox">
                <label for="user_mailinglist">
                        <input name="user_mailinglist" type="checkbox" id="user_mailinglist" value="true" <?php checked( $user_mailinglist, true ); ?>>
                        <?php _e( 'Subscribe to WordPress Announcements mailing list (a few messages a year)', 'wporg' ); ?>
                </label>
        </p>
        <?php
                if ( $error_recapcha_status ) {
                        echo '<div class="message error"><p>' . __( 'Please try again.', 'wporg' ) . '</p></div>';
                }
        ?>

        <p class="login-submit">
                <input data-sitekey="<?php echo esc_attr( RECAPTCHA_INVIS_PUBKEY ); ?>" data-callback='onSubmit' type="submit" name="wp-submit" id="wp-submit" class="g-recaptcha button button-primary button-large" value="<?php esc_attr_e( 'Create Account', 'wporg' ); ?>" />
        </p>

</form>

<p id="nav">
        <a href="/" title="<?php esc_attr_e( 'Already have an account?', 'wporg' ); ?>"><?php _e( 'Already have an account?', 'wporg' ); ?></a> &nbsp; • &nbsp;
        <a href="<?php echo wporg_login_wordpress_url(); ?>"><?php _e( 'WordPress.org', 'wporg' ); ?></a>
</p>

<?php get_footer();