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| 1 | <?php |
| 2 | /** |
| 3 | * Domain Mapping 3rd Party |
| 4 | * |
| 5 | * @package automattic/jetpack |
| 6 | */ |
| 7 | |
| 8 | namespace Automattic\Jetpack\Third_Party; |
| 9 | |
| 10 | use Automattic\Jetpack\Constants; |
| 11 | |
| 12 | if ( ! defined( 'ABSPATH' ) ) { |
| 13 | exit( 0 ); |
| 14 | } |
| 15 | |
| 16 | /** |
| 17 | * Class Automattic\Jetpack\Third_Party\Domain_Mapping. |
| 18 | * |
| 19 | * This class contains methods that are used to provide compatibility between Jetpack sync and domain mapping plugins. |
| 20 | */ |
| 21 | class Domain_Mapping { |
| 22 | |
| 23 | /** |
| 24 | * Singleton holder. |
| 25 | * |
| 26 | * @var Domain_Mapping |
| 27 | **/ |
| 28 | private static $instance = null; |
| 29 | |
| 30 | /** |
| 31 | * An array of methods that are used to hook the Jetpack sync filters for home_url and site_url to a mapping plugin. |
| 32 | * |
| 33 | * @var array |
| 34 | */ |
| 35 | public static $test_methods = array( |
| 36 | 'hook_wordpress_mu_domain_mapping', |
| 37 | 'hook_wpmu_dev_domain_mapping', |
| 38 | ); |
| 39 | |
| 40 | /** |
| 41 | * Singleton constructor. |
| 42 | * |
| 43 | * @return Domain_Mapping|null |
| 44 | */ |
| 45 | public static function init() { |
| 46 | if ( self::$instance === null ) { |
| 47 | self::$instance = new Domain_Mapping(); |
| 48 | } |
| 49 | |
| 50 | return self::$instance; |
| 51 | } |
| 52 | |
| 53 | /** |
| 54 | * Class Automattic\Jetpack\Third_Party\Domain_Mapping constructor. |
| 55 | */ |
| 56 | private function __construct() { |
| 57 | add_action( 'plugins_loaded', array( $this, 'attempt_to_hook_domain_mapping_plugins' ) ); |
| 58 | } |
| 59 | |
| 60 | /** |
| 61 | * This function is called on the plugins_loaded action and will loop through the $test_methods |
| 62 | * to try and hook a domain mapping plugin to the Jetpack sync filters for the home_url and site_url callables. |
| 63 | */ |
| 64 | public function attempt_to_hook_domain_mapping_plugins() { |
| 65 | if ( ! Constants::is_defined( 'SUNRISE' ) ) { |
| 66 | return; |
| 67 | } |
| 68 | |
| 69 | $hooked = false; |
| 70 | $count = count( self::$test_methods ); |
| 71 | for ( $i = 0; $i < $count && ! $hooked; $i++ ) { |
| 72 | $hooked = call_user_func( array( $this, self::$test_methods[ $i ] ) ); |
| 73 | } |
| 74 | } |
| 75 | |
| 76 | /** |
| 77 | * This method will test for a constant and function that are known to be used with Donncha's WordPress MU |
| 78 | * Domain Mapping plugin. If conditions are met, we hook the domain_mapping_siteurl() function to Jetpack sync |
| 79 | * filters for home_url and site_url callables. |
| 80 | * |
| 81 | * @return bool |
| 82 | */ |
| 83 | public function hook_wordpress_mu_domain_mapping() { |
| 84 | if ( ! Constants::is_defined( 'SUNRISE_LOADED' ) || ! $this->function_exists( 'domain_mapping_siteurl' ) ) { |
| 85 | return false; |
| 86 | } |
| 87 | |
| 88 | add_filter( 'jetpack_sync_home_url', 'domain_mapping_siteurl' ); |
| 89 | add_filter( 'jetpack_sync_site_url', 'domain_mapping_siteurl' ); |
| 90 | |
| 91 | return true; |
| 92 | } |
| 93 | |
| 94 | /** |
| 95 | * This method will test for a class and method known to be used in WPMU Dev's domain mapping plugin. If the |
| 96 | * method exists, then we'll hook the swap_to_mapped_url() to our Jetpack sync filters for home_url and site_url. |
| 97 | * |
| 98 | * @return bool |
| 99 | */ |
| 100 | public function hook_wpmu_dev_domain_mapping() { |
| 101 | if ( ! $this->class_exists( 'domain_map' ) || ! $this->method_exists( 'domain_map', 'utils' ) ) { |
| 102 | return false; |
| 103 | } |
| 104 | |
| 105 | $utils = $this->get_domain_mapping_utils_instance(); |
| 106 | add_filter( 'jetpack_sync_home_url', array( $utils, 'swap_to_mapped_url' ) ); |
| 107 | add_filter( 'jetpack_sync_site_url', array( $utils, 'swap_to_mapped_url' ) ); |
| 108 | |
| 109 | return true; |
| 110 | } |
| 111 | |
| 112 | /* |
| 113 | * Utility Methods |
| 114 | * |
| 115 | * These methods are very minimal, and in most cases, simply pass on arguments. Why create them you ask? |
| 116 | * So that we can test. |
| 117 | */ |
| 118 | |
| 119 | /** |
| 120 | * Checks if a method exists. |
| 121 | * |
| 122 | * @param string $class Class name. |
| 123 | * @param string $method Method name. |
| 124 | * |
| 125 | * @return bool Returns function_exists() without modification. |
| 126 | */ |
| 127 | public function method_exists( $class, $method ) { |
| 128 | return method_exists( $class, $method ); |
| 129 | } |
| 130 | |
| 131 | /** |
| 132 | * Checks if a class exists. |
| 133 | * |
| 134 | * @param string $class Class name. |
| 135 | * |
| 136 | * @return bool Returns class_exists() without modification. |
| 137 | */ |
| 138 | public function class_exists( $class ) { |
| 139 | return class_exists( $class ); |
| 140 | } |
| 141 | |
| 142 | /** |
| 143 | * Checks if a function exists. |
| 144 | * |
| 145 | * @param string $function Function name. |
| 146 | * |
| 147 | * @return bool Returns function_exists() without modification. |
| 148 | */ |
| 149 | public function function_exists( $function ) { |
| 150 | return function_exists( $function ); |
| 151 | } |
| 152 | |
| 153 | /** |
| 154 | * Returns the Domain_Map::utils() instance. |
| 155 | * |
| 156 | * @see https://github.com/wpmudev/domain-mapping/blob/master/classes/Domainmap/Utils.php |
| 157 | * @return \Domainmap_Utils |
| 158 | */ |
| 159 | public function get_domain_mapping_utils_instance() { |
| 160 | return \domain_map::utils(); |
| 161 | } |
| 162 | } |
| 163 | |
| 164 | Domain_Mapping::init(); |