WordPress Plugin to use CloudFlare Worker Proxy

wporg-cf-proxy.php

<?php
/*
Plugin Name: Cloudflare Proxy for WordPress Updates
Description: Proxy WordPress.org theme and plugin update requests via a Cloudflare Worker.
Version: 1.0.0
Author: 9seeds, Jon Brown
Author URI:        https://9seeds.com/
License:           GPL-2.0+
License URI:       http://www.gnu.org/licenses/gpl-2.0.txt
Copyright:        2024 Jon Brown
Text Domain:       wporg-cf-proxy
*/

/* NOTE: this plugin has no settings page yet, it's mostly a POC.
 * To use it you must update <your-worker> everywhere it appears below with the name of your worker
 * see https://gist.github.com/jb510/b898c75df7879c38ba052d97cc9a04ff for an example of the worker
 */

function cf_update_proxy_plugins($update, $plugin_data, $plugin_file) {
    // Define the Cloudflare Worker URL
    $proxy_url = 'https://<your-worker>.workers.dev/plugins/';

    // Build the API request URL for the plugin info
    $plugin_slug = dirname($plugin_file);
    $url = $proxy_url . $plugin_slug;

    // Make a request to the Cloudflare Worker
    $response = wp_remote_get($url);

    if (is_wp_error($response)) {
        return false;
    }

    $body = wp_remote_retrieve_body($response);
    $data = json_decode($body, true);

    if (empty($data)) {
        return false;
    }

    return $data;
}

add_filter('plugins_api', 'cf_update_proxy_plugins', 10, 3);

function cf_update_proxy_themes($response, $theme_slug) {
    // Define the Cloudflare Worker URL
    $proxy_url = 'https://<your-worker>.workers.dev/themes/';

    // Build the API request URL for the theme info
    $url = $proxy_url . $theme_slug;

    // Make a request to the Cloudflare Worker
    $response = wp_remote_get($url);

    if (is_wp_error($response)) {
        return false;
    }

    $body = wp_remote_retrieve_body($response);
    $data = json_decode($body, true);

    if (empty($data)) {
        return false;
    }

    return $data;
}

add_filter('themes_api', 'cf_update_proxy_themes', 10, 2);