azionelab-v2/wordpress/mu-plugins/azionelab-content.php

<?php
/**
 * Plugin Name: Azione!Lab structured content
 * Description: Shows and gallery content types used by the Azione!Lab theme.
 * Version: 1.0.0
 */

if ( ! defined( 'ABSPATH' ) ) {
    exit;
}

function azionelab_register_content_types(): void {
    register_post_type(
        'azl_show',
        array(
            'labels' => array(
                'name'          => 'Spettacoli',
                'singular_name' => 'Spettacolo',
                'add_new_item'  => 'Aggiungi spettacolo',
                'edit_item'     => 'Modifica spettacolo',
            ),
            'public'       => true,
            'show_in_rest' => true,
            'menu_icon'    => 'dashicons-tickets-alt',
            'supports'     => array( 'title', 'editor', 'excerpt', 'thumbnail', 'page-attributes' ),
            'has_archive'  => false,
            'rewrite'      => false,
        )
    );

    register_post_type(
        'azl_gallery',
        array(
            'labels' => array(
                'name'          => 'Galleria',
                'singular_name' => 'Foto',
                'add_new_item'  => 'Aggiungi foto',
                'edit_item'     => 'Modifica foto',
            ),
            'public'       => false,
            'show_ui'      => true,
            'show_in_rest' => true,
            'menu_icon'    => 'dashicons-format-gallery',
            'supports'     => array( 'title', 'thumbnail', 'page-attributes' ),
        )
    );
}
add_action( 'init', 'azionelab_register_content_types' );

function azionelab_add_meta_boxes(): void {
    add_meta_box( 'azl_show_details', 'Dettagli spettacolo', 'azionelab_show_meta_box', 'azl_show', 'normal' );
    add_meta_box( 'azl_gallery_details', 'Dettagli foto', 'azionelab_gallery_meta_box', 'azl_gallery', 'normal' );
}
add_action( 'add_meta_boxes', 'azionelab_add_meta_boxes' );

function azionelab_show_meta_box( WP_Post $post ): void {
    wp_nonce_field( 'azionelab_save_meta', 'azionelab_meta_nonce' );
    $year = get_post_meta( $post->ID, 'azl_show_year', true );
    $year = '0' === (string) $year ? '' : $year;
    $location = get_post_meta( $post->ID, 'azl_show_location', true );
    ?>
    <p>
        <label for="azl_show_excerpt"><strong>Descrizione breve</strong></label><br>
        <textarea id="azl_show_excerpt" name="azl_show_excerpt" class="widefat" rows="4"><?php echo esc_textarea( $post->post_excerpt ); ?></textarea>
        <span class="description">Questo testo appare nella card dello spettacolo in homepage.</span>
    </p>
    <p><label for="azl_show_year"><strong>Anno</strong></label><br><input id="azl_show_year" name="azl_show_year" type="number" min="1900" max="2100" value="<?php echo esc_attr( $year ); ?>"></p>
    <p><label for="azl_show_location"><strong>Luogo</strong></label><br><input id="azl_show_location" name="azl_show_location" type="text" class="widefat" value="<?php echo esc_attr( $location ); ?>"></p>
    <?php
}

function azionelab_gallery_meta_box( WP_Post $post ): void {
    wp_nonce_field( 'azionelab_save_meta', 'azionelab_meta_nonce' );
    $category = get_post_meta( $post->ID, 'azl_gallery_category', true );
    ?>
    <p><label for="azl_gallery_category"><strong>Categoria</strong></label><br>
        <select id="azl_gallery_category" name="azl_gallery_category">
            <?php foreach ( array( 'Lezioni', 'Backstage', 'Spettacoli', 'Gruppo' ) as $option ) : ?>
                <option value="<?php echo esc_attr( $option ); ?>" <?php selected( $category, $option ); ?>><?php echo esc_html( $option ); ?></option>
            <?php endforeach; ?>
        </select>
    </p>
    <?php
}

function azionelab_save_meta( int $post_id ): void {
    if ( ! isset( $_POST['azionelab_meta_nonce'] ) || ! wp_verify_nonce( sanitize_text_field( wp_unslash( $_POST['azionelab_meta_nonce'] ) ), 'azionelab_save_meta' ) ) {
        return;
    }
    if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) {
        return;
    }
    if ( ! current_user_can( 'edit_post', $post_id ) ) {
        return;
    }

    $post_type = get_post_type( $post_id );
    if ( 'azl_show' === $post_type ) {
        $excerpt = isset( $_POST['azl_show_excerpt'] ) ? sanitize_textarea_field( wp_unslash( $_POST['azl_show_excerpt'] ) ) : '';
        $year = '';
        if ( isset( $_POST['azl_show_year'] ) && '' !== trim( (string) wp_unslash( $_POST['azl_show_year'] ) ) ) {
            $submitted_year = absint( $_POST['azl_show_year'] );
            $year = $submitted_year >= 1900 && $submitted_year <= 2100 ? (string) $submitted_year : '';
        }
        $location = isset( $_POST['azl_show_location'] ) ? sanitize_text_field( wp_unslash( $_POST['azl_show_location'] ) ) : '';
        update_post_meta( $post_id, 'azl_show_year', $year );
        update_post_meta( $post_id, 'azl_show_location', $location );
        remove_action( 'save_post', 'azionelab_save_meta' );
        wp_update_post(
            array(
                'ID'           => $post_id,
                'post_excerpt' => $excerpt,
            )
        );
        add_action( 'save_post', 'azionelab_save_meta' );
    } elseif ( 'azl_gallery' === $post_type ) {
        $allowed = array( 'Lezioni', 'Backstage', 'Spettacoli', 'Gruppo' );
        $category = isset( $_POST['azl_gallery_category'] ) ? sanitize_text_field( wp_unslash( $_POST['azl_gallery_category'] ) ) : '';
        update_post_meta( $post_id, 'azl_gallery_category', in_array( $category, $allowed, true ) ? $category : 'Lezioni' );
    }
}
add_action( 'save_post', 'azionelab_save_meta' );

add_filter( 'xmlrpc_enabled', '__return_false' );
add_filter( 'comments_open', '__return_false', 20 );
add_filter( 'pings_open', '__return_false', 20 );
remove_action( 'wp_head', 'wp_generator' );
add_filter( 'the_generator', '__return_empty_string' );

function azionelab_restrict_public_user_api( $result, WP_REST_Server $server, WP_REST_Request $request ) {
    unset( $server );
    if ( ! is_user_logged_in() && str_starts_with( $request->get_route(), '/wp/v2/users' ) ) {
        return new WP_Error( 'rest_no_route', 'No route was found matching the URL and request method.', array( 'status' => 404 ) );
    }
    return $result;
}
add_filter( 'rest_pre_dispatch', 'azionelab_restrict_public_user_api', 10, 3 );

function azionelab_disable_public_author_archives(): void {
    if ( is_author() && ! is_user_logged_in() ) {
        global $wp_query;
        $wp_query->set_404();
        status_header( 404 );
        nocache_headers();
    }
}
add_action( 'template_redirect', 'azionelab_disable_public_author_archives' );