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<?php
use Automattic\Jetpack\Constants;
/**
* Class Jetpack_3rd_Party_Domain_Mapping
*
* This class contains methods that are used to provide compatibility between Jetpack sync and domain mapping plugins.
*/
class Jetpack_3rd_Party_Domain_Mapping {
/**
* @var Jetpack_3rd_Party_Domain_Mapping
**/
private static $instance = null;
/**
* An array of methods that are used to hook the Jetpack sync filters for home_url and site_url to a mapping plugin.
*
* @var array
*/
static $test_methods = array(
'hook_wordpress_mu_domain_mapping',
'hook_wpmu_dev_domain_mapping'
);
static function init() {
if ( is_null( self::$instance ) ) {
self::$instance = new Jetpack_3rd_Party_Domain_Mapping;
}
return self::$instance;
}
private function __construct() {
add_action( 'plugins_loaded', array( $this, 'attempt_to_hook_domain_mapping_plugins' ) );
}
/**
* This function is called on the plugins_loaded action and will loop through the $test_methods
* to try and hook a domain mapping plugin to the Jetpack sync filters for the home_url and site_url callables.
*/
function attempt_to_hook_domain_mapping_plugins() {
if ( ! Constants::is_defined( 'SUNRISE' ) ) {
return;
}
$hooked = false;
$count = count( self::$test_methods );
for ( $i = 0; $i < $count && ! $hooked; $i++ ) {
$hooked = call_user_func( array( $this, self::$test_methods[ $i ] ) );
}
}
/**
* This method will test for a constant and function that are known to be used with Donncha's WordPress MU
* Domain Mapping plugin. If conditions are met, we hook the domain_mapping_siteurl() function to Jetpack sync
* filters for home_url and site_url callables.
*
* @return bool
*/
function hook_wordpress_mu_domain_mapping() {
if ( ! Constants::is_defined( 'SUNRISE_LOADED' ) || ! $this->function_exists( 'domain_mapping_siteurl' ) ) {
return false;
}
add_filter( 'jetpack_sync_home_url', 'domain_mapping_siteurl' );
add_filter( 'jetpack_sync_site_url', 'domain_mapping_siteurl' );
return true;
}
/**
* This method will test for a class and method known to be used in WPMU Dev's domain mapping plugin. If the
* method exists, then we'll hook the swap_to_mapped_url() to our Jetpack sync filters for home_url and site_url.
*
* @return bool
*/
function hook_wpmu_dev_domain_mapping() {
if ( ! $this->class_exists( 'domain_map' ) || ! $this->method_exists( 'domain_map', 'utils' ) ) {
return false;
}
$utils = $this->get_domain_mapping_utils_instance();
add_filter( 'jetpack_sync_home_url', array( $utils, 'swap_to_mapped_url' ) );
add_filter( 'jetpack_sync_site_url', array( $utils, 'swap_to_mapped_url' ) );
return true;
}
/*
* Utility Methods
*
* These methods are very minimal, and in most cases, simply pass on arguments. Why create them you ask?
* So that we can test.
*/
public function method_exists( $class, $method ) {
return method_exists( $class, $method );
}
public function class_exists( $class ) {
return class_exists( $class );
}
public function function_exists( $function ) {
return function_exists( $function );
}
public function get_domain_mapping_utils_instance() {
return domain_map::utils();
}
}
Jetpack_3rd_Party_Domain_Mapping::init();
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