UM blocked domains: Can you block a whole Top Level Domain (TLD), like “*.ru”?

@clausfaber

Try this code snippet with fix for bypassing email addresses with capital letters and now you can also block top level domains with *.ru

New UM error message: We do not accept registrations from that top level domain.

function um_102621_blockedemails( $args ) {

    $emails = UM()->options()->get( 'blocked_emails' );
    if ( ! $emails ) {
        return;
    }

    $emails = array_map( 'rtrim', explode( "\n", $emails ) );

    if ( isset( $args['user_email'] ) && is_email( $args['user_email'] ) ) {

        $domain = explode( '@', $args['user_email'] );
        $check_domain = str_replace( $domain[0], '*', $args['user_email'] );

        if ( in_array( strtolower( $args['user_email'] ), $emails ) ) {
            exit( wp_redirect( esc_url( add_query_arg( 'err', 'blocked_email' ) ) ) );
        }

        if ( in_array( strtolower( $check_domain ), $emails ) ) {
            exit( wp_redirect( esc_url( add_query_arg( 'err', 'blocked_domain' ) ) ) );
        }

        $tld = explode( '.', $domain[1] );
        $check_tld = '*.' . $tld[1]; 
        if ( in_array( strtolower( $check_tld ), $emails ) ) {
            exit( wp_redirect( esc_url( add_query_arg( 'err', 'blocked_top_level_domain' ) ) ) );
        }

    }

    if ( isset( $args['username'] ) && is_email( $args['username'] ) ) {

        $domain = explode( '@', $args['username'] );
        $check_domain = str_replace( $domain[0], '*', $args['username'] );

        if ( in_array( strtolower( $args['username'] ), $emails ) ) {
            exit( wp_redirect( esc_url( add_query_arg( 'err', 'blocked_email' ) ) ) );
        }

        if ( in_array( strtolower( $check_domain ), $emails ) ) {
            exit( wp_redirect( esc_url( add_query_arg( 'err', 'blocked_domain' ) ) ) );
        }

        $tld = explode( '.', $domain[1] );
        $check_tld = '*.' . $tld[1]; 
        if ( in_array( strtolower( $check_tld ), $emails ) ) {
            exit( wp_redirect( esc_url( add_query_arg( 'err', 'blocked_top_level_domain' ) ) ) );
        }
    }
}

add_action( 'um_submit_form_errors_hook__blockedemails', 'um_102621_blockedemails', 10 );
remove_action( 'um_submit_form_errors_hook__blockedemails', 'um_submit_form_errors_hook__blockedemails', 10 );

add_filter( 'um_custom_error_message_handler', 'um_custom_error_message_handler_tld', 10, 2 );

function um_custom_error_message_handler_tld( $err, $request_err ) {

    if( $request_err == 'blocked_top_level_domain' ) {

        return __( 'We do not accept registrations from that top level domain.', 'ultimate-member' );
    }
}

Install this code snippet in your child-theme’s functions.php file
or use the “Code Snippets” plugin.

https://wordpress.org/plugins/code-snippets/

• This reply was modified 3 years, 2 months ago by missveronica.
• This reply was modified 3 years, 2 months ago by missveronica.

@clausfaber

New UM Feature Request:
https://github.com/ultimatemember/ultimatemember/issues/968

• This reply was modified 3 years, 1 month ago by missveronica.