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✏️ Editing: cloudflare.php

<?php
defined( 'ABSPATH' ) or die( 'Cheatin&#8217; uh?' );

/**
 * Get a CloudFlare\Api instance
 *
 * @since 2.8.21
 * @author Remy Perona
 *
 * @return Object CloudFlare\Api instance if crendentials are set, WP_Error otherwise
 */
function get_rocket_cloudflare_api_instance() {
	$cf_email   = get_rocket_option( 'cloudflare_email', null );
	$cf_api_key = ( defined( 'WP_ROCKET_CF_API_KEY' ) ) ? WP_ROCKET_CF_API_KEY : get_rocket_option( 'cloudflare_api_key', null );

if ( ! isset( $cf_email, $cf_api_key ) ) {
		return new WP_Error( 'cloudflare_credentials_empty', __( 'Cloudflare Email and API key are not set', 'rocket' ) );
	}

return new Cloudflare\Api( $cf_email, $cf_api_key );
}

/**
 * Get a CloudFlare\Api instance & the zone_id corresponding to the domain
 *
 * @since 2.8.21 Get the zone ID from the options
 * @since 2.8.18 Add try/catch to prevent fatal error Uncaugh Exception
 * @since 2.8.16 Update to CloudFlare API v4
 * @since 2.5
 *
 * @return Object CloudFlare instance & zone_id if credentials are correct, WP_Error otherwise
 */
function get_rocket_cloudflare_instance() {
	$cf_api_instance = get_rocket_cloudflare_api_instance();
	if ( is_wp_error( $cf_api_instance )  ) {
		return $cf_api_instance;
	}

$cf_instance = (object) [ 'auth' => $cf_api_instance ];
	$cf_zone_id  = get_rocket_option( 'cloudflare_zone_id', null );

if ( ! isset( $cf_zone_id ) ) {
		return new WP_Error( 'cloudflare_no_zone_id', __( 'No Zone ID set in the WP Rocket settings', 'rocket' ) );
	}

$cf_instance = (object) [ 'auth' => $cf_api_instance, 'zone_id' => $cf_zone_id ];

return $cf_instance;
}

/**
 * Returns the main instance of CloudFlare API to prevent the need to use globals.
 */
$GLOBALS['rocket_cloudflare'] = get_rocket_cloudflare_instance();

/**
 * Test the connection with CloudFlare
 *
 * @since 2.9
 * @author Remy Perona
 *
 * @throws Exception If the connection to CloudFlare failed.
 * @return Object True if connection is successful, WP_Error otherwise
 */
function rocket_cloudflare_valid_auth() {
	$cf_api_instance = get_rocket_cloudflare_api_instance();
	if ( is_wp_error( $cf_api_instance ) ) {
		return $cf_api_instance;
	}

try {
		$cf_zone_instance = new CloudFlare\Zone( $cf_api_instance );
		$cf_zones         = $cf_zone_instance->zones();

if ( ! isset( $cf_zones->success ) || empty( $cf_zones->success ) ) {
			throw new Exception( __( 'Connection to Cloudflare failed', 'rocket' ) );
		}

if ( true === $cf_zones->success ) {
			return true;
		}
	} catch ( Exception $e ) {
		return new WP_Error( 'cloudflare_invalid_auth', $e->getMessage() );
	}
}

/**
 * Get Zones linked to a CloudFlare account
 *
 * @since 2.9
 * @author Remy Perona
 *
 * @return Array List of zones or default no domain
 */
function get_rocket_cloudflare_zones() {
	$cf_api_instance = get_rocket_cloudflare_api_instance();
	$domains = array(
		'' => __( 'Choose a domain from the list', 'rocket' ),
	);

if ( is_wp_error( $cf_api_instance ) ) {
		return $domains;
	}

try {
		$cf_zone_instance        = new CloudFlare\Zone( $cf_api_instance );
		$cf_zones                = $cf_zone_instance->zones( null, 'active', null, 50 );
		$cf_zones_list           = $cf_zones->result;

if ( ! (bool) $cf_zones_list ) {
			$domains[] = __( 'No domain available in your Cloudflare account', 'rocket' );

return $domains;
		}

foreach ( $cf_zones_list as $cf_zone ) {
			$domains[ $cf_zone->name ] = $cf_zone->name;
		}

return $domains;
	} catch ( Exception $e ) {
		return $domains;
	}
}

/**
 * Get all the current CloudFlare settings for a given domain.
 *
 * @since 2.8.16 Update to CloudFlare API v4
 * @since 2.5
 *
 * @return mixed bool|Array Array of CloudFlare settings, false if any error connection to CloudFlare
 */
function get_rocket_cloudflare_settings() {
	if ( is_wp_error( $GLOBALS['rocket_cloudflare'] ) ) {
		return $GLOBALS['rocket_cloudflare'];
	}

try {
		$cf_settings_instance = new CloudFlare\Zone\Settings( $GLOBALS['rocket_cloudflare']->auth );
	    $cf_settings          = $cf_settings_instance->settings( $GLOBALS['rocket_cloudflare']->zone_id );
	    $cf_minify            = $cf_settings->result[16]->value;
	    $cf_minify_value      = 'on';

if ( 'off' === $cf_minify->js || 'off' === $cf_minify->css || 'off' === $cf_minify->html ) {
			$cf_minify_value = 'off';
	    }

$cf_settings_array  = array(
			'cache_level'       => $cf_settings->result[5]->value,
			'minify'            => $cf_minify_value,
			'rocket_loader'     => $cf_settings->result[25]->value,
			'browser_cache_ttl' => $cf_settings->result[3]->value,
	    );

return $cf_settings_array;
	} catch ( Exception $e ) {
		return new WP_Error( 'cloudflare_current_settings', $e->getMessage() );
	}
}

/**
 * Set the CloudFlare Development mode.
 *
 * @since 2.9 Now returns a value
 * @since 2.8.16 Update to CloudFlare API v4
 * @since 2.5
 *
 * @param string $mode Value for CloudFlare development mode.
 * @throws Exception If any error occurs when doing the API request.
 * @return mixed Object|String Mode value if the update is successful, WP_Error otherwise
 */
function set_rocket_cloudflare_devmode( $mode ) {
	if ( is_wp_error( $GLOBALS['rocket_cloudflare'] ) ) {
		return $GLOBALS['rocket_cloudflare'];
	}

if ( (int) 0 === $mode ) {
		$value = 'off';
	} elseif ( (int) 1 === $mode ) {
		$value = 'on';
	}

try {
		$cf_settings = new CloudFlare\Zone\Settings( $GLOBALS['rocket_cloudflare']->auth );
		$cf_return = $cf_settings->change_development_mode( $GLOBALS['rocket_cloudflare']->zone_id, $value );

if ( ! isset( $cf_return->success ) || empty( $cf_return->success ) ) {
			foreach ( $cf_return->errors as $error ) {
				$errors[] = $error->message;
			}