Edit - Cdn_BunnyCdn

Edit: Cdn_BunnyCdn_Page.php

<?php
/**
 * File: Cdn_BunnyCdn_Page.php
 *
 * @since   2.6.0
 * @package W3TC
 */

namespace W3TC;

/**
 * Class: Cdn_BunnyCdn_Page
 *
 * @since 2.6.0
 */
class Cdn_BunnyCdn_Page {
	/**
	 * Handles the AJAX action to purge a specific URL from Bunny CDN.
	 *
	 * This method listens for the `w3tc_ajax_cdn_bunnycdn_purge_url` AJAX action and processes the URL purging request.
	 * It validates the URL, calls the Bunny CDN API to purge the URL, and sends a JSON response indicating success or failure.
	 *
	 * @since 2.6.0
	 *
	 * @return void
	 */
	public static function w3tc_ajax() {
		$o = new Cdn_BunnyCdn_Page();

\add_action( 'w3tc_ajax_cdn_bunnycdn_purge_url', array( $o, 'w3tc_ajax_cdn_bunnycdn_purge_url' ) );
	}

/**
	 * Checks if Bunny CDN is active and properly configured.
	 *
	 * This method verifies if Bunny CDN is enabled and configured correctly by checking the necessary configuration
	 * values, including the account API key and pull zone IDs. It returns true if Bunny CDN is active, and false otherwise.
	 *
	 * @since 2.6.0
	 *
	 * @return bool True if Bunny CDN is active, false if not.
	 */
	public static function is_active() {
		$config          = Dispatcher::config();
		$cdn_enabled     = $config->get_boolean( 'cdn.enabled' );
		$cdn_engine      = $config->get_string( 'cdn.engine' );
		$cdn_zone_id     = $config->get_integer( 'cdn.bunnycdn.pull_zone_id' );
		$cdnfsd_enabled  = $config->get_boolean( 'cdnfsd.enabled' );
		$cdnfsd_engine   = $config->get_string( 'cdnfsd.engine' );
		$cdnfsd_zone_id  = $config->get_integer( 'cdnfsd.bunnycdn.pull_zone_id' );
		$account_api_key = $config->get_string( 'cdn.bunnycdn.account_api_key' );

return ( $account_api_key &&
			(
				( $cdn_enabled && 'bunnycdn' === $cdn_engine && $cdn_zone_id ) ||
				( $cdnfsd_enabled && 'bunnycdn' === $cdnfsd_engine && $cdnfsd_zone_id )
			)
		);
	}

/**
	 * Adds actions to the W3 Total Cache dashboard if Bunny CDN is active.
	 *
	 * This method appends a custom "Empty All Caches Except Bunny CDN" button to the W3 Total Cache dashboard if Bunny CDN
	 * is enabled. It also checks if other cache types can be emptied before enabling the button.
	 *
	 * @since 2.6.0
	 *
	 * @param array $actions List of existing actions in the dashboard.
	 *
	 * @return array Modified list of actions with the new button if Bunny CDN is active.
	 */
	public static function w3tc_dashboard_actions( array $actions ) {
		if ( self::is_active() ) {
			$modules            = Dispatcher::component( 'ModuleStatus' );
			$can_empty_memcache = $modules->can_empty_memcache();
			$can_empty_opcode   = $modules->can_empty_opcode();
			$can_empty_file     = $modules->can_empty_file();
			$can_empty_varnish  = $modules->can_empty_varnish();

$actions[] = sprintf(
				'<input type="submit" class="dropdown-item" name="w3tc_bunnycdn_flush_all_except_bunnycdn" value="%1$s"%2$s>',
				esc_attr__( 'Empty All Caches Except Bunny CDN', 'w3-total-cache' ),
				( ! $can_empty_memcache && ! $can_empty_opcode && ! $can_empty_file && ! $can_empty_varnish ) ? ' disabled="disabled"' : ''
			);
		}

return $actions;
	}

/**
	 * Enqueues scripts and localizes variables for Bunny CDN on the admin page.
	 *
	 * This method registers and enqueues the necessary JavaScript for Bunny CDN functionality in the W3 Total Cache admin
	 * panel. It also localizes important variables like authorization status and localized strings for use in the script.
	 *
	 * @since 2.6.0
	 *
	 * @return void
	 */
	public static function admin_print_scripts_w3tc_cdn() {
		$config        = Dispatcher::config();
		$is_authorized = ! empty( $config->get_string( 'cdn.bunnycdn.account_api_key' ) ) &&
			( $config->get_string( 'cdn.bunnycdn.pull_zone_id' ) || $config->get_string( 'cdnfsd.bunnycdn.pull_zone_id' ) );

\wp_register_script(
			'w3tc_cdn_bunnycdn',
			\plugins_url( 'Cdn_BunnyCdn_Page_View.js', W3TC_FILE ),
			array( 'jquery' ),
			W3TC_VERSION,
			false
		);

\wp_localize_script(
			'w3tc_cdn_bunnycdn',
			'W3TC_Bunnycdn',
			array(
				'is_authorized' => $is_authorized,
				'lang'          => array(
					'empty_url'       => \esc_html__( 'No URL specified', 'w3-total-cache' ),
					'success_purging' => \esc_html__( 'Successfully purged URL', 'w3-total-cache' ),
					'error_purging'   => \esc_html__( 'Error purging URL', 'w3-total-cache' ),
					'error_ajax'      => \esc_html__( 'Error with AJAX', 'w3-total-cache' ),
				),
			)
		);

\wp_enqueue_script( 'w3tc_cdn_bunnycdn' );
	}

/**
	 * Displays the configuration settings for Bunny CDN in the W3 Total Cache settings page.
	 *
	 * This method includes the view file for Bunny CDN configuration options, allowing users to modify the Bunny CDN
	 * settings from the W3 Total Cache admin panel.
	 *
	 * @since 2.6.0
	 *
	 * @return void
	 */
	public static function w3tc_settings_cdn_boxarea_configuration() {
		$config = Dispatcher::config();

include W3TC_DIR . '/Cdn_BunnyCdn_Page_View.php';
	}

/**
	 * Displays the URL purge settings in the W3 Total Cache admin panel.
	 *
	 * This method includes the view file for managing the Bunny CDN URL purge functionality, where users can specify
	 * URLs to purge from Bunny CDN.
	 *
	 * @since 2.6.0
	 *
	 * @return void
	 */
	public static function w3tc_purge_urls_box() {
		// Prevent duplicate renders when CDN and CDNFSD both hook this box.
		static $ran = false;

if ( $ran ) {
			return;
		}

$ran    = true;
		$config = Dispatcher::config();

include W3TC_DIR . '/Cdn_BunnyCdn_Page_View_Purge_Urls.php';
	}

/**
	 * Processes the AJAX request to purge a specified URL from Bunny CDN.
	 *
	 * This method validates the provided URL, sends a purge request to the Bunny CDN API, and returns a JSON response
	 * indicating the success or failure of the operation. If the URL is invalid or an error occurs, a failure response
	 * is sent with the appropriate error message.
	 *
	 * Purging a URL will remove the file from the CDN cache and re-download it from your origin server.
	 * Please enter the exact CDN URL of each individual file.
	 * You can also purge folders or wildcard files using * inside of the URL path.
	 * Wildcard values are not supported if using Perma-Cache.
	 *
	 * @since 2.6.0
	 *
	 * @return void
	 */
	public function w3tc_ajax_cdn_bunnycdn_purge_url() {
		$url = Util_Request::get_string( 'url' );

// Check if URL starts with "http", starts with a valid protocol, and passes a URL validation check.
		if ( 0 !== \strpos( $url, 'http' ) || ! \preg_match( '~^http(s?)://(.+)~i', $url ) || ! \filter_var( $url, FILTER_VALIDATE_URL ) ) {
			\wp_send_json_error(
				array( 'error_message' => \esc_html__( 'Invalid URL', 'w3-total-cache' ) ),
				400
			);
		}

$config          = Dispatcher::config();
		$account_api_key = $config->get_string( 'cdn.bunnycdn.account_api_key' );

$api = new Cdn_BunnyCdn_Api( array( 'account_api_key' => $account_api_key ) );

// Try to delete pull zone.
		try {
			$api->purge(
				array(
					'url'   => \esc_url( $url, array( 'http', 'https' ) ),
					'async' => true,
				)
			);
		} catch ( \Exception $ex ) {
			\wp_send_json_error( array( 'error_message' => $ex->getMessage() ), 422 );
		}

\wp_send_json_success();
	}

/**
	 * Flushes all caches except Bunny CDN and redirects to the W3 Total Cache settings page.
	 *
	 * This method flushes all caches except for Bunny CDN and redirects the user to the W3 Total Cache settings page with
	 * a success message.
	 *
	 * @since 2.6.0
	 *
	 * @return void
	 */
	public function w3tc_bunnycdn_flush_all_except_bunnycdn() {
		Dispatcher::component( 'CacheFlush' )->flush_all( array( 'bunnycdn' => 'skip' ) );
		Util_Admin::redirect( array( 'w3tc_note' => 'flush_all' ), true );
	}
}

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