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| 1 | <?php |
| 2 | /** |
| 3 | * Initializer base class. |
| 4 | * |
| 5 | * @package @automattic/jetpack-search |
| 6 | */ |
| 7 | |
| 8 | namespace Automattic\Jetpack\Search; |
| 9 | |
| 10 | use Automattic\Jetpack\Connection\Manager as Connection_Manager; |
| 11 | use WP_Error; |
| 12 | /** |
| 13 | * Base class for the initializer pattern. |
| 14 | */ |
| 15 | class Initializer { |
| 16 | |
| 17 | /** |
| 18 | * Whether a block-driven experience owns the search results this request |
| 19 | * — Embedded, or the experimental blocks Overlay. Set to `true` in |
| 20 | * `init_search_blocks()` only when the `jetpack_search_blocks_enabled` |
| 21 | * gate is on AND the saved experience is one of those (the Overlay arm |
| 22 | * additionally requires `jetpack_search_overlay_block_template_enabled`). |
| 23 | * In those experiences both Classic and Instant Search are suppressed, so |
| 24 | * `init_search()` returns falsy by design; `init()` reads this flag to |
| 25 | * treat that as a no-op rather than a real failure. Anchoring on the |
| 26 | * actually-wired-up state (not a filter read) prevents the abort carve-out |
| 27 | * from being bypassed on a site that doesn't have Search Blocks registered. |
| 28 | * |
| 29 | * @var bool |
| 30 | */ |
| 31 | private static $block_search_active = false; |
| 32 | |
| 33 | /** |
| 34 | * Initialize the search package. |
| 35 | * |
| 36 | * The method is called from the `Config` class. |
| 37 | */ |
| 38 | public static function init() { |
| 39 | // Load compatibility files - at this point all plugins are already loaded. |
| 40 | static::include_compatibility_files(); |
| 41 | |
| 42 | // Set up package version hook. |
| 43 | add_filter( 'jetpack_package_versions', __NAMESPACE__ . '\Package::send_version_to_tracker' ); |
| 44 | |
| 45 | /** |
| 46 | * The filter allows abortion of the Jetpack Search package initialization. |
| 47 | * |
| 48 | * @since 0.11.2 |
| 49 | * |
| 50 | * @param boolean $init_search_package Default value is true. |
| 51 | */ |
| 52 | if ( ! apply_filters( 'jetpack_search_init_search_package', true ) ) { |
| 53 | /** |
| 54 | * Fires when the Jetpack Search fails and would fallback to MySQL. |
| 55 | * |
| 56 | * @since Jetpack 7.9.0 |
| 57 | * @param string $reason Reason for Search fallback. |
| 58 | * @param mixed $data Data associated with the request, such as attempted search parameters. |
| 59 | */ |
| 60 | do_action( 'jetpack_search_abort', 'jetpack_search_init_search_package_filter', null ); |
| 61 | return; |
| 62 | } |
| 63 | |
| 64 | static::init_before_connection(); |
| 65 | |
| 66 | // Check whether Jetpack Search should be initialized in the first place . |
| 67 | if ( ! static::is_connected() || ! static::is_search_supported() ) { |
| 68 | /** This filter is documented in search/src/initalizers/class-initalizer.php */ |
| 69 | do_action( 'jetpack_search_abort', 'inactive', null ); |
| 70 | return; |
| 71 | } |
| 72 | |
| 73 | // Register the Search 3.0 Interactivity API blocks. Connection + |
| 74 | // plan are already guaranteed by the abort above; this call only |
| 75 | // layers the Phase 1 feature flag on top, mirroring how |
| 76 | // `init_search()` layers `is_instant_search_enabled` on top of |
| 77 | // the same upstream gate. |
| 78 | static::init_search_blocks(); |
| 79 | |
| 80 | $blog_id = Helper::get_wpcom_site_id(); |
| 81 | if ( ! $blog_id ) { |
| 82 | /** This filter is documented in search/src/initalizers/class-initalizer.php */ |
| 83 | do_action( 'jetpack_search_abort', 'no_blog_id', null ); |
| 84 | return; |
| 85 | } |
| 86 | |
| 87 | if ( ! ( new Module_Control() )->is_active() ) { |
| 88 | /** This filter is documented in search/src/initalizers/class-initalizer.php */ |
| 89 | do_action( 'jetpack_search_abort', 'module_inactive', null ); |
| 90 | return; |
| 91 | } |
| 92 | |
| 93 | // Initialize search package. The block-driven experiences (Embedded / |
| 94 | // blocks Overlay) intentionally skip both instant and classic init |
| 95 | // (Search_Blocks owns the UI), so a falsy return there is by design — |
| 96 | // not an abort. Anything else falsy is a real failure. Anchor on the |
| 97 | // actually-wired-up flag (set in `init_search_blocks()` only when the |
| 98 | // blocks gate passed) rather than a filter read, so flipping a filter |
| 99 | // without the blocks gate can never bypass the abort. |
| 100 | $initialized = static::init_search( $blog_id ) |
| 101 | || self::$block_search_active; |
| 102 | |
| 103 | if ( ! $initialized ) { |
| 104 | /** This filter is documented in search/src/initalizers/class-initalizer.php */ |
| 105 | do_action( 'jetpack_search_abort', 'jetpack_search_init_search', null ); |
| 106 | return; |
| 107 | } |
| 108 | |
| 109 | /** |
| 110 | * Fires when the Jetpack Search package has been initialized. |
| 111 | * |
| 112 | * @since 0.11.2 |
| 113 | */ |
| 114 | do_action( 'jetpack_search_loaded' ); |
| 115 | } |
| 116 | |
| 117 | /** |
| 118 | * Extra tweaks to make Jetpack Search play well with others. |
| 119 | */ |
| 120 | public static function include_compatibility_files() { |
| 121 | if ( class_exists( 'Jetpack' ) ) { |
| 122 | require_once Package::get_installed_path() . 'compatibility/jetpack.php'; |
| 123 | } |
| 124 | require_once Package::get_installed_path() . 'compatibility/search-0.15.2.php'; |
| 125 | require_once Package::get_installed_path() . 'compatibility/search-0.17.0.php'; |
| 126 | require_once Package::get_installed_path() . 'compatibility/unsupported-browsers.php'; |
| 127 | } |
| 128 | |
| 129 | /** |
| 130 | * Init functionality required for connection. |
| 131 | */ |
| 132 | protected static function init_before_connection() { |
| 133 | // Set up Search API endpoints. |
| 134 | add_action( 'rest_api_init', array( REST_Controller::class, 'register' ) ); |
| 135 | // The dashboard has to be initialized before connection. |
| 136 | ( new Dashboard() )->init_hooks(); |
| 137 | ( new AI_Answers() )->init(); |
| 138 | } |
| 139 | |
| 140 | /** |
| 141 | * Register the Search 3.0 Interactivity API blocks on this request, |
| 142 | * gated by the Phase 1 feature flag. |
| 143 | * |
| 144 | * Called from `init()` after the upstream connection + Search-plan |
| 145 | * abort, so on entry the site is guaranteed to be connected and on a |
| 146 | * plan that supports Search (paid plans or the free |
| 147 | * `jetpack_search_free` product). The remaining gate is the |
| 148 | * feature-flag opt-in. |
| 149 | * |
| 150 | * Sits before the blog_id and module-active checks because admins |
| 151 | * should be able to configure Search blocks in the editor regardless |
| 152 | * of which runtime experience is enabled — matching how Instant |
| 153 | * Search layers its own opt-in on top of the same connection + plan |
| 154 | * gate further down in `init_search()`. |
| 155 | */ |
| 156 | protected static function init_search_blocks() { |
| 157 | /** |
| 158 | * Filter whether the Jetpack Search 3.0 Interactivity API blocks are enabled. |
| 159 | * |
| 160 | * Necessary but not sufficient on its own — registration also |
| 161 | * requires the site to be connected and on a plan that supports |
| 162 | * Search (paid plans or the free `jetpack_search_free` product). |
| 163 | * |
| 164 | * @param bool $enabled Default true. |
| 165 | */ |
| 166 | if ( ! apply_filters( 'jetpack_search_blocks_enabled', true ) ) { |
| 167 | return; |
| 168 | } |
| 169 | |
| 170 | Search_Blocks::init(); |
| 171 | |
| 172 | // When the Search blocks own the front-end results (Embedded / blocks |
| 173 | // Overlay), Classic Search would otherwise run a server-side |
| 174 | // Elasticsearch query plus a WP_Query to hydrate the posts on every |
| 175 | // search request — work the blocks immediately discard. Suppress it so |
| 176 | // it never runs, the same way Instant Search replaces Classic; |
| 177 | // `Search_Blocks::filter__posts_pre_query` then short-circuits the |
| 178 | // remaining core database search. With both handlers gone `init_search()` |
| 179 | // returns false by design, so this flag tells `init()` not to treat that |
| 180 | // as an abort. |
| 181 | // |
| 182 | // Front-end only, matching the `posts_pre_query` registration guard: |
| 183 | // leaving Classic Search to initialize normally in wp-admin keeps the |
| 184 | // change scoped to the search page and avoids dropping admin-side hooks. |
| 185 | if ( ! is_admin() && Search_Blocks::owns_search_results() ) { |
| 186 | add_filter( 'jetpack_search_classic_search_enabled', '__return_false' ); |
| 187 | self::$block_search_active = true; |
| 188 | } |
| 189 | |
| 190 | // Experimental block-template overlay (available by default, opt-in |
| 191 | // via the Experience Selector; see |
| 192 | // `Search_Blocks::is_block_template_overlay_enabled()`): bypass the |
| 193 | // preact `SearchApp` so it doesn't race the block overlay for |
| 194 | // `?s=`, popstate, and theme search-trigger selectors. Suppressing |
| 195 | // at the init filter is cleaner than dequeuing post-enqueue. Gated on |
| 196 | // the overlay path specifically — Embedded never enables Instant Search, |
| 197 | // so there is nothing to suppress there. |
| 198 | if ( Search_Blocks::is_block_template_overlay_enabled() ) { |
| 199 | add_filter( 'jetpack_search_init_instant_search', '__return_false' ); |
| 200 | } |
| 201 | } |
| 202 | |
| 203 | /** |
| 204 | * Init the search package. |
| 205 | * |
| 206 | * @param int $blog_id WPCOM blog ID. |
| 207 | */ |
| 208 | protected static function init_search( $blog_id ) { |
| 209 | // We could provide CLI to enable search/instant search, so init them regardless of whether the module is active or not. |
| 210 | static::init_cli(); |
| 211 | |
| 212 | $success = false; |
| 213 | $is_instant_search_enabled = ( new Module_Control() )->is_instant_search_enabled(); |
| 214 | if ( $is_instant_search_enabled ) { |
| 215 | // Enable Instant search experience. |
| 216 | $success = static::init_instant_search( $blog_id ); |
| 217 | } |
| 218 | /** |
| 219 | * Filter whether classic search should be enabled. By this stage, search module would be enabled already. |
| 220 | * |
| 221 | * @since 0.39.6 |
| 222 | * @param boolean initial value whether classic search is enabled. |
| 223 | * @param boolean filtered result whether classic search is enabled. |
| 224 | */ |
| 225 | if ( apply_filters( 'jetpack_search_classic_search_enabled', ! $is_instant_search_enabled ) ) { |
| 226 | // Enable the classic search experience. |
| 227 | $success = static::init_classic_search( $blog_id ); |
| 228 | } |
| 229 | |
| 230 | if ( $success ) { |
| 231 | // registers Jetpack Search widget. |
| 232 | add_action( 'widgets_init', array( static::class, 'jetpack_search_widget_init' ) ); |
| 233 | } |
| 234 | |
| 235 | return $success; |
| 236 | } |
| 237 | |
| 238 | /** |
| 239 | * Init Instant Search and its dependencies. |
| 240 | * |
| 241 | * @param int $blog_id WPCOM blog ID. |
| 242 | */ |
| 243 | protected static function init_instant_search( $blog_id ) { |
| 244 | /** |
| 245 | * The filter allows abortion of the Instant Search initialization. |
| 246 | * |
| 247 | * @since 0.11.2 |
| 248 | * |
| 249 | * @param boolean $init_instant_search Default value is true. |
| 250 | */ |
| 251 | if ( ! apply_filters( 'jetpack_search_init_instant_search', true ) ) { |
| 252 | return; |
| 253 | } |
| 254 | |
| 255 | // Enable the instant search experience. |
| 256 | Instant_Search::initialize( $blog_id ); |
| 257 | // Register instant search configurables as WordPress settings. |
| 258 | new Settings(); |
| 259 | // Instantiate "Customberg", the live search configuration interface. |
| 260 | Customberg::instance(); |
| 261 | // Enable configuring instant search within the Customizer iff it's not using a block theme. |
| 262 | if ( ! wp_is_block_theme() ) { |
| 263 | new Customizer(); |
| 264 | } |
| 265 | return true; |
| 266 | } |
| 267 | |
| 268 | /** |
| 269 | * Init Classic Search. |
| 270 | * |
| 271 | * @param int $blog_id WPCOM blog ID. |
| 272 | */ |
| 273 | protected static function init_classic_search( $blog_id ) { |
| 274 | /** |
| 275 | * The filter allows abortion of the Classic Search initialization. |
| 276 | * |
| 277 | * @since 0.11.2 |
| 278 | * |
| 279 | * @param boolean $init_instant_search Default value is true. |
| 280 | */ |
| 281 | if ( ! apply_filters( 'jetpack_search_init_classic_search', true ) ) { |
| 282 | return; |
| 283 | } |
| 284 | Inline_Search::get_instance_maybe_fallback_to_classic( $blog_id ); |
| 285 | |
| 286 | return true; |
| 287 | } |
| 288 | |
| 289 | /** |
| 290 | * Register jetpack-search CLI if `\CLI` exists. |
| 291 | * |
| 292 | * @return void |
| 293 | */ |
| 294 | protected static function init_cli() { |
| 295 | if ( defined( 'WP_CLI' ) && \WP_CLI ) { |
| 296 | \WP_CLI::add_command( 'jetpack-search', __NAMESPACE__ . '\CLI' ); |
| 297 | } |
| 298 | } |
| 299 | |
| 300 | /** |
| 301 | * Register the widget if Jetpack Search is available and enabled. |
| 302 | */ |
| 303 | public static function jetpack_search_widget_init() { |
| 304 | register_widget( 'Automattic\Jetpack\Search\Search_Widget' ); |
| 305 | } |
| 306 | |
| 307 | /** |
| 308 | * Check if site has been connected. |
| 309 | */ |
| 310 | protected static function is_connected() { |
| 311 | return ( new Connection_Manager( Package::SLUG ) )->is_connected(); |
| 312 | } |
| 313 | |
| 314 | /** |
| 315 | * Check if search is supported by current plan. |
| 316 | */ |
| 317 | protected static function is_search_supported() { |
| 318 | return ( new Plan() )->supports_search(); |
| 319 | } |
| 320 | |
| 321 | /** |
| 322 | * Perform necessary initialization steps for classic and instant search in the constructor. |
| 323 | * |
| 324 | * @deprecated |
| 325 | */ |
| 326 | public static function initialize() { |
| 327 | return new WP_Error( |
| 328 | 'invalid-method', |
| 329 | /* translators: %s: Method name. */ |
| 330 | sprintf( __( "Method '%s' not implemented. Must be overridden in subclass.", 'jetpack-search-pkg' ), __METHOD__ ), |
| 331 | array( 'status' => 405 ) |
| 332 | ); |
| 333 | } |
| 334 | } |