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<?php
defined( 'ABSPATH' ) || die( 'Cheatin’ 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() {
if ( ! function_exists( 'curl_init' ) || ! function_exists( 'curl_exec' ) ) {
return new WP_Error( 'curl_disabled', __( 'Curl functions are disabled, they are required for the Cloudflare Add-on to work correctly.', 'rocket' ) );
}
$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 ) ) {
$msg = sprintf(
// translators: %s = WP Rocket plugin name.
__( 'Missing Cloudflare zone ID. %s could not fix this automatically.', 'rocket' ),
WP_ROCKET_PLUGIN_NAME
);
$msg .= ' ' . sprintf(
/* translators: %1$s = opening link; %2$s = closing link */
__( 'Read the %1$sdocumentation%2$s for further guidance.', 'rocket' ),
/* translators: Documentation exists in EN, DE, FR, ES, IT; use loaclised URL if applicable */
'<a href="' . __( 'https://docs.wp-rocket.me/article/18-using-wp-rocket-with-cloudflare/?utm_source=wp_plugin&utm_medium=wp_rocket', 'rocket' ) . '" target="_blank">',
'</a>'
);
return new WP_Error( 'cloudflare_no_zone_id', $msg );
}
$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;
}
$errors = implode( ', ', $errors );
throw new Exception( $errors );
}
if ( 'on' === $value ) {
wp_schedule_single_event( time() + 3 * HOUR_IN_SECONDS, 'rocket_cron_deactivate_cloudflare_devmode' );
}
return $value;
} catch ( Exception $e ) {
return new WP_Error( 'cloudflare_dev_mode', $e->getMessage() );
}
}
/**
* Set the Cloudflare Caching level.
*
* @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 caching level.
* @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_cache_level( $mode ) {
if ( is_wp_error( $GLOBALS['rocket_cloudflare'] ) ) {
return $GLOBALS['rocket_cloudflare'];
}
try {
$cf_settings = new Cloudflare\Zone\Settings( $GLOBALS['rocket_cloudflare']->auth );
$cf_return = $cf_settings->change_cache_level( $GLOBALS['rocket_cloudflare']->zone_id, $mode );
if ( ! isset( $cf_return->success ) || empty( $cf_return->success ) ) {
foreach ( $cf_return->errors as $error ) {
$errors[] = $error->message;
}
$errors = implode( ', ', $errors );
throw new Exception( $errors );
}
return $mode;
} catch ( Exception $e ) {
return new WP_Error( 'cloudflare_cache_level', $e->getMessage() );
}
}
/**
* Set the Cloudflare Minification.
*
* @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 minification.
* @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_minify( $mode ) {
if ( is_wp_error( $GLOBALS['rocket_cloudflare'] ) ) {
return $GLOBALS['rocket_cloudflare'];
}
$cf_minify_settings = array(
'css' => $mode,
'html' => $mode,
'js' => $mode,
);
try {
$cf_settings = new Cloudflare\Zone\Settings( $GLOBALS['rocket_cloudflare']->auth );
$cf_return = $cf_settings->change_minify( $GLOBALS['rocket_cloudflare']->zone_id, $cf_minify_settings );
if ( ! isset( $cf_return->success ) || empty( $cf_return->success ) ) {
foreach ( $cf_return->errors as $error ) {
$errors[] = $error->message;
}
$errors = implode( ', ', $errors );
throw new Exception( $errors );
}
return $mode;
} catch ( Exception $e ) {
return new WP_Error( 'cloudflare_minification', $e->getMessage() );
}
}
/**
* Set the Cloudflare Rocket Loader.
*
* @since 2.9 Now returns value
* @since 2.8.16 Update to Cloudflare API v4
* @since 2.5
*
* @param string $mode Value for Cloudflare Rocket Loader.
* @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_rocket_loader( $mode ) {
if ( is_wp_error( $GLOBALS['rocket_cloudflare'] ) ) {
return $GLOBALS['rocket_cloudflare'];
}
try {
$cf_settings = new Cloudflare\Zone\Settings( $GLOBALS['rocket_cloudflare']->auth );
$cf_return = $cf_settings->change_rocket_loader( $GLOBALS['rocket_cloudflare']->zone_id, $mode );
if ( ! isset( $cf_return->success ) || empty( $cf_return->success ) ) {
foreach ( $cf_return->errors as $error ) {
$errors[] = $error->message;
}
$errors = implode( ', ', $errors );
throw new Exception( $errors );
}
return $mode;
} catch ( Exception $e ) {
return new WP_Error( 'cloudflare_rocket_loader', $e->getMessage() );
}
}
/**
* Set the Browser Cache TTL in Cloudflare.
*
* @since 2.9 Now returns value
* @since 2.8.16
*
* @param string $mode Value for Cloudflare browser cache TTL.
* @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_browser_cache_ttl( $mode ) {
if ( is_wp_error( $GLOBALS['rocket_cloudflare'] ) ) {
return $GLOBALS['rocket_cloudflare'];
}
try {
$cf_settings = new Cloudflare\Zone\Settings( $GLOBALS['rocket_cloudflare']->auth );
$cf_return = $cf_settings->change_browser_cache_ttl( $GLOBALS['rocket_cloudflare']->zone_id, (int) $mode );
if ( ! isset( $cf_return->success ) || empty( $cf_return->success ) ) {
foreach ( $cf_return->errors as $error ) {
$errors[] = $error->message;
}
$errors = implode( ', ', $errors );
throw new Exception( $errors );
}
return $mode;
} catch ( Exception $e ) {
return new WP_Error( 'cloudflare_browser_cache', $e->getMessage() );
}
}
/**
* Purge Cloudflare cache.
*
* @since 2.9 Now returns value
* @since 2.8.16 Update to Cloudflare API v4
* @since 2.5
*
* @throws Exception If any error occurs when doing the API request.
* @return mixed Object|bool true if the purge is successful, WP_Error otherwise
*/
function rocket_purge_cloudflare() {
if ( is_wp_error( $GLOBALS['rocket_cloudflare'] ) ) {
return $GLOBALS['rocket_cloudflare'];
}
try {
$cf_cache = new Cloudflare\Zone\Cache( $GLOBALS['rocket_cloudflare']->auth );
$cf_purge = $cf_cache->purge( $GLOBALS['rocket_cloudflare']->zone_id, true );
if ( ! isset( $cf_purge->success ) || empty( $cf_purge->success ) ) {
foreach ( $cf_purge->errors as $error ) {
$errors[] = $error->message;
}
$errors = implode( ', ', $errors );
throw new Exception( $errors );
}
return true;
} catch ( Exception $e ) {
return new WP_Error( 'cloudflare_purge_failed', $e->getMessage() );
}
}
/**
* Get Cloudflare IPs.
*
* @since 2.8.21 Save IPs in a transient to prevent calling the API everytime
* @since 2.8.16
*
* @author Remy Perona
*
* @throws Exception If any error occurs when doing the API request.
* @return Object Result of API request if successful, WP_Error otherwise
*/
function rocket_get_cloudflare_ips() {
$cf_instance = get_rocket_cloudflare_api_instance();
if ( is_wp_error( $cf_instance ) ) {
return $cf_instance;
}
$cf_ips = get_transient( 'rocket_cloudflare_ips' );
if ( false === $cf_ips ) {
try {
$cf_ips_instance = new Cloudflare\IPs( $cf_instance );
$cf_ips = $cf_ips_instance->ips();
if ( ! isset( $cf_ips->success ) || ! $cf_ips->success ) {
throw new Exception( 'Error connecting to Cloudflare' );
}
set_transient( 'rocket_cloudflare_ips', $cf_ips, 2 * WEEK_IN_SECONDS );
} catch ( Exception $e ) {
$cf_ips = (object) [
'success' => true,
'result' => (object) [],
];
$cf_ips->result->ipv4_cidrs = array(
'103.21.244.0/22',
'103.22.200.0/22',
'103.31.4.0/22',
'104.16.0.0/12',
'108.162.192.0/18',
'131.0.72.0/22',
'141.101.64.0/18',
'162.158.0.0/15',
'172.64.0.0/13',
'173.245.48.0/20',
'188.114.96.0/20',
'190.93.240.0/20',
'197.234.240.0/22',
'198.41.128.0/17',
'199.27.128.0/21',
);
$cf_ips->result->ipv6_cidrs = array(
'2400:cb00::/32',
'2405:8100::/32',
'2405:b500::/32',
'2606:4700::/32',
'2803:f800::/32',
'2c0f:f248::/32',
'2a06:98c0::/29',
);
set_transient( 'rocket_cloudflare_ips', $cf_ips, 2 * WEEK_IN_SECONDS );
return $cf_ips;
}
}
return $cf_ips;
}
/**
* Automatically set Cloudflare development mode value to off after 3 hours to reflect Cloudflare behaviour
*
* @since 2.9
* @author Remy Perona
*/
function do_rocket_deactivate_cloudflare_devmode() {
$options = get_option( WP_ROCKET_SLUG );
$options['cloudflare_devmode'] = 'off';
update_option( WP_ROCKET_SLUG, $options );
}
add_action( 'rocket_cron_deactivate_cloudflare_devmode', 'do_rocket_deactivate_cloudflare_devmode' );