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| 1 | <?php |
| 2 | /** |
| 3 | * This is the main file for the Data_Sync package. |
| 4 | * |
| 5 | * It's responsible for setting up the registry and the endpoints. |
| 6 | * |
| 7 | * Setting up with something like this: |
| 8 | * |
| 9 | * ``` |
| 10 | * class Widget_Status extends Data_Sync_Handler {} |
| 11 | * class Widget_Data extends Data_Sync_Handler {} |
| 12 | * |
| 13 | * $instance = Data_Sync::setup( 'jetpack_boost', 'jetpack-boost' ); |
| 14 | * $instance->register( 'widget_status', new Widget_Status() ); |
| 15 | * $instance->register( 'widget_data', new Widget_Data() ); |
| 16 | * |
| 17 | * ``` |
| 18 | * |
| 19 | * This will to create two endpoints: `/wp-json/jetpack-boost/widget-status` and `/wp-json/jetpack-boost/widget-data` |
| 20 | * and pass the following variables to the `jetpack-boost` script handle. |
| 21 | * |
| 22 | * Note that keys for URLs are always automatically transformed to kebab-case, so `widget_status` becomes `widget-status`, |
| 23 | * and it's expected that keys are always in snake_case when referencing options. |
| 24 | * They're only transformed to kebab-case when used in URLs. |
| 25 | * |
| 26 | * ``` |
| 27 | * jetpack_boost = { |
| 28 | * rest_api: { |
| 29 | * value: 'https://example.com/wp-json/jetpack-boost', |
| 30 | * nonce: '1234567890' |
| 31 | * }, |
| 32 | * widget_status: { |
| 33 | * value: 'active', |
| 34 | * nonce: '1234567890' |
| 35 | * }, |
| 36 | * widget_data: { |
| 37 | * value: { ... }, |
| 38 | * nonce: '1234567890' |
| 39 | * } |
| 40 | * } |
| 41 | * ``` |
| 42 | * |
| 43 | * |
| 44 | * To access the data from WordPress, you can ask the registry for the entry:* |
| 45 | * ``` |
| 46 | * $registry = Registry::get_instance( 'jetpack_boost' ); |
| 47 | * $entry = $registry->get( 'widget_status' ); |
| 48 | * $entry->get(); // 'active' |
| 49 | * ``` |
| 50 | * |
| 51 | * |
| 52 | * To make it easier to access the data, you should probably create a dedicated helper function: |
| 53 | * ``` |
| 54 | * function jetpack_boost_get_data( $key ) { |
| 55 | * $registry = Registry::get_instance( 'jetpack_boost' ); |
| 56 | * $entry = $registry->get( $key ); |
| 57 | * return $entry->get(); |
| 58 | * } |
| 59 | * ``` |
| 60 | * |
| 61 | * @package automattic/jetpack-wp-js-data-sync |
| 62 | */ |
| 63 | |
| 64 | namespace Automattic\Jetpack\WP_JS_Data_Sync; |
| 65 | |
| 66 | use Automattic\Jetpack\Schema\Parser; |
| 67 | use Automattic\Jetpack\Schema\Schema_Context; |
| 68 | use Automattic\Jetpack\WP_JS_Data_Sync\Contracts\Entry_Can_Get; |
| 69 | use Automattic\Jetpack\WP_JS_Data_Sync\Contracts\Lazy_Entry; |
| 70 | |
| 71 | final class Data_Sync { |
| 72 | |
| 73 | const PACKAGE_VERSION = '0.6.8'; |
| 74 | |
| 75 | /** |
| 76 | * @var Registry |
| 77 | */ |
| 78 | private $registry; |
| 79 | |
| 80 | /** |
| 81 | * @var string Script Handle name to pass the variables to. |
| 82 | */ |
| 83 | private $script_handle; |
| 84 | |
| 85 | /** |
| 86 | * The Registry class is a singleton. |
| 87 | * |
| 88 | * @var Data_Sync[] |
| 89 | */ |
| 90 | private static $instance = array(); |
| 91 | /** |
| 92 | * @var string The namespace to use for the registry. |
| 93 | */ |
| 94 | private $namespace; |
| 95 | |
| 96 | public function __construct( $namespace ) { |
| 97 | $this->namespace = $namespace; |
| 98 | $this->registry = new Registry( $namespace ); |
| 99 | } |
| 100 | |
| 101 | public static function get_instance( $namespace ) { |
| 102 | if ( ! isset( self::$instance[ $namespace ] ) ) { |
| 103 | self::$instance[ $namespace ] = new self( $namespace ); |
| 104 | } |
| 105 | |
| 106 | return self::$instance[ $namespace ]; |
| 107 | } |
| 108 | |
| 109 | /** |
| 110 | * Retrieve nonces for all action endpoints associated with a given entry. |
| 111 | * |
| 112 | * @param string $entry_key The key for the entry. |
| 113 | * |
| 114 | * @return array An associative array of action nonces. |
| 115 | */ |
| 116 | private function get_action_nonces_for_entry( $entry_key ) { |
| 117 | // Assuming a method in Registry class to retrieve all action names for an entry |
| 118 | $action_names = $this->registry->get_action_names_for_entry( $entry_key ); |
| 119 | $nonces = array(); |
| 120 | |
| 121 | foreach ( $action_names as $action_name ) { |
| 122 | $nonce = $this->registry->get_action_nonce( $entry_key, $action_name ); |
| 123 | if ( $nonce ) { |
| 124 | $nonces[ $action_name ] = $nonce; |
| 125 | } |
| 126 | } |
| 127 | |
| 128 | return $nonces; |
| 129 | } |
| 130 | |
| 131 | /** |
| 132 | * Don't call this method directly. |
| 133 | * It's only public so that it can be called as a hook |
| 134 | * |
| 135 | * @return void |
| 136 | */ |
| 137 | // phpcs:ignore PSR2.Methods.MethodDeclaration.Underscore |
| 138 | public function _print_options_script_tag() { |
| 139 | $data = array( |
| 140 | 'rest_api' => array( |
| 141 | 'value' => rest_url( $this->registry->get_namespace_http() ), |
| 142 | 'nonce' => wp_create_nonce( 'wp_rest' ), |
| 143 | ), |
| 144 | ); |
| 145 | foreach ( $this->registry->all() as $key => $entry ) { |
| 146 | |
| 147 | $data[ $key ] = array( |
| 148 | 'value' => $entry->is( Lazy_Entry::class ) ? null : $entry->get(), |
| 149 | 'nonce' => $this->registry->get_endpoint( $key )->create_nonce(), |
| 150 | ); |
| 151 | |
| 152 | if ( DS_Utils::is_debug() ) { |
| 153 | $data[ $key ]['log'] = $entry->get_parser()->get_log(); |
| 154 | } |
| 155 | |
| 156 | if ( DS_Utils::debug_disable( $key ) ) { |
| 157 | unset( $data[ $key ]['value'] ); |
| 158 | } |
| 159 | |
| 160 | if ( $entry->is( Lazy_Entry::class ) ) { |
| 161 | $data[ $key ]['lazy'] = true; |
| 162 | } |
| 163 | |
| 164 | // Include nonces for action endpoints associated with this entry |
| 165 | $action_nonces = $this->get_action_nonces_for_entry( $key ); |
| 166 | if ( ! empty( $action_nonces ) ) { |
| 167 | $data[ $key ]['actions'] = $action_nonces; |
| 168 | } |
| 169 | } |
| 170 | |
| 171 | wp_localize_script( $this->script_handle, $this->namespace, $data ); |
| 172 | } |
| 173 | |
| 174 | public function attach_to_plugin( $script_handle, $plugin_page_hook ) { |
| 175 | $this->script_handle = $script_handle; |
| 176 | add_action( $plugin_page_hook, array( $this, '_print_options_script_tag' ) ); |
| 177 | } |
| 178 | |
| 179 | public function get_registry() { |
| 180 | return $this->registry; |
| 181 | } |
| 182 | |
| 183 | /** |
| 184 | * DataSync entries have to be registered before they can be used. |
| 185 | * |
| 186 | * Typically, entries are stored in WP Options, so this method |
| 187 | * is will default to registering entries as Data_Sync_Option. |
| 188 | * |
| 189 | * However, you can provide an `$entry` instance that subscribes Entry_Can_* methods. |
| 190 | * If you do, `Entry_Can_Get` interface is required, and all other Entry_Can_* interfaces are optional. |
| 191 | * |
| 192 | * @param string $key - The key to register the entry under. |
| 193 | * @param Parser $parser - The parser to use for the entry. |
| 194 | * @param Entry_Can_Get $custom_entry_instance - The entry to register. If null, a new Data_Sync_Option will be created. |
| 195 | * |
| 196 | * @return void |
| 197 | */ |
| 198 | public function register( $key, $parser, $custom_entry_instance = null ) { |
| 199 | $option_key = $this->namespace . '_' . $key; |
| 200 | |
| 201 | // If a custom entry instance is provided, and it implements Entry_Can_Get, use that. |
| 202 | // Otherwise, this Entry will store data using Data_Sync_Option (wp_options). |
| 203 | $entry = ( $custom_entry_instance instanceof Entry_Can_Get ) |
| 204 | ? $custom_entry_instance |
| 205 | : new Data_Sync_Option( $option_key ); |
| 206 | |
| 207 | /* |
| 208 | * ## Adapter |
| 209 | * This `register` method is inteded to be a shorthand for the most common use case. |
| 210 | * |
| 211 | * Custom entries can implement various interfaces depending on whether they can set, merge, delete, etc. |
| 212 | * However, the Registry expects an object that implements Data_Sync_Entry. |
| 213 | * That's why we wrap the Entry in an Adapter - giving it a guaranteed interface. |
| 214 | * |
| 215 | * ## Customization |
| 216 | * Entries can be flexible because they're wrapped in an Adapter. |
| 217 | * But you can also create a class that implements `Data_Sync_Entry` directly if you need to. |
| 218 | * In that case, you'd need to use: |
| 219 | * ```php |
| 220 | * $Data_Sync->get_registry()->register(...)` instead of `$Data_Sync->register(...) |
| 221 | * ``` |
| 222 | */ |
| 223 | if ( method_exists( $parser, 'set_context' ) ) { |
| 224 | // @phan-suppress-next-line PhanUndeclaredMethod -- Phan misses the method_exists(). See https://github.com/phan/phan/issues/1204. |
| 225 | $parser->set_context( new Schema_Context( $key ) ); |
| 226 | } |
| 227 | $entry_adapter = new Data_Sync_Entry_Adapter( $entry, $parser ); |
| 228 | $this->registry->register( $key, $entry_adapter ); |
| 229 | } |
| 230 | |
| 231 | /** |
| 232 | * Register a readonly entry. |
| 233 | * |
| 234 | * @param string $key The key to register the entry under. |
| 235 | * @param Parser $parser The parser to use for the entry. |
| 236 | * @param callable $callback The callback to use for the entry. |
| 237 | * |
| 238 | * @return void |
| 239 | */ |
| 240 | public function register_readonly( |
| 241 | $key, |
| 242 | $parser, |
| 243 | $callback |
| 244 | ) { |
| 245 | $this->register( $key, $parser, new Data_Sync_Readonly( $callback ) ); |
| 246 | } |
| 247 | |
| 248 | public function register_action( |
| 249 | $key, |
| 250 | $action_name, |
| 251 | $request_schema, |
| 252 | $instance |
| 253 | ) { |
| 254 | $this->registry->register_action( $key, $action_name, $request_schema, $instance ); |
| 255 | } |
| 256 | } |