PluginProbe
xSpeed Cache: AI-Powered Performance Hub with MCP, Caching & CDN / 1.3.7
xSpeed Cache: AI-Powered Performance Hub with MCP, Caching & CDN v1.3.7
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← All changes | includes/class-plugin.php +369 -15 1.0.8 → 1.3.7 View file →
@@ -10,8 +10,14 @@
10 10 defined( 'ABSPATH' ) || exit;
11 11
12 12 class Plugin {
13 13
14 + /**
15 + * Data-schema version for one-time migrations, independent of the
16 + * plugin version header. Bump when adding a step to maybe_upgrade().
17 + */
18 + public const DATA_VERSION = '1.3.6';
19 +
14 20 private static $instance = null;
15 21
16 22 /** @var Usage_Tracker|null */
17 23 private $usage_tracker = null;
@@ -32,8 +38,15 @@
32 38 new Cache();
33 39 new Rest_Cache();
34 40 new Onboarding();
35 41
42 + // Optional deactivation feedback survey on the Plugins screen. Admin
43 + // context only (its hooks are admin_enqueue_scripts / admin_footer /
44 + // wp_ajax). Sends nothing unless the user clicks "Submit & Deactivate".
45 + if ( is_admin() ) {
46 + new Deactivation_Feedback();
47 + }
48 +
36 49 // Opt-in usage analytics. Instantiating + init() only registers the
37 50 // cron callback; NOTHING is collected or sent until the admin opts in
38 51 // from the setup wizard (Onboarding wires the consent toggle to
39 52 // Usage_Tracker::opt_in()). See class-usage-tracker.php privacy contract.
@@ -46,18 +59,57 @@
46 59 // this is a consistency check, not a new install path. First
47 60 // admin page load after a plugin upgrade restores the state;
48 61 // front-end then serves from cache on the next request.
49 62 add_action( 'admin_init', array( Cache::class, 'auto_heal' ) );
63 + // Cheap: returns immediately unless the stored schema version is
64 + // behind. Covers updates and multisite, where activate() never runs.
65 + add_action( 'admin_init', array( Score_Store::class, 'maybe_install' ) );
50 66
67 + // Secondary net: restore as soon as an update completes, for the
68 + // cases where activate() does not re-run (bulk updates, auto-updates,
69 + // some host updaters). Best-effort by nature — this callback is only
70 + // registered when we were loaded in the request performing the
71 + // update, which is not guaranteed while WE are the plugin being
72 + // replaced. The restore in activate() is the primary guarantee;
73 + // auto_heal() on admin_init remains the backstop.
74 + add_action( 'upgrader_process_complete', array( $this, 'maybe_restore_after_update' ), 10, 2 );
75 +
51 76 // Per-post cache rules (Phase 3.4) — registers postmeta with
52 77 // REST + meta box on edit screens.
53 78 Cache_Meta_Box::boot();
54 79
80 + // Single-URL purge entry points — row actions, the edit-screen
81 + // button and the admin-post handler the admin-bar item also uses.
82 + Purge_Ui::boot();
83 +
55 84 // Phase 0 architecture — managers + Free modules. v1 services
56 85 // (Cache/Minifier/Gzip) are NOT yet Modules; they'll be refactored
57 86 // in a follow-up PR with parity tests.
58 87 Conflict_Registry::boot();
59 88
89 + // Read-only page-cache ownership evidence, behind the same
90 + // activation/deactivation invalidation as the conflict matrix.
91 + Page_Cache_Detector::boot();
92 +
93 + // Integrations that clear OTHER plugins' caches of rendered output
94 + // (Elementor's element cache + generated CSS). Registers a listener
95 + // only; nothing runs until Cache::purge_render_caches() asks.
96 + Render_Caches::boot();
97 + // Forwarding needs no boot(): Cache::dispatch_purge_event() calls
98 + // Server_Caches::forward() directly so a throwing third-party listener
99 + // cannot skip it. Both built-in server-cache adapters live behind it —
100 + // LiteSpeed, and the nginx FastCGI cache reached through the host's
101 + // Nginx Helper install (Host_Page_Caches), which is why neither is
102 + // booted here. This boot() registers one listener only: the single
103 + // purge that runs after an import, which the nginx adapter's import
104 + // gate stands down in favour of.
105 + Server_Caches::boot();
106 +
107 + // Tell WP Statistics and Slimstat not to count the warmer, the
108 + // benchmark and the verifier as visitors. Record-time filters only;
109 + // see the class for why the tracking snippet itself is left alone.
110 + Self_Traffic::boot();
111 +
60 112 // Register Free modules via the same action xspeed-pro uses, so
61 113 // the bootstrap path is symmetric across tiers.
62 114 add_action( 'xspeed_register_modules', array( $this, 'register_free_modules' ) );
63 115
@@ -73,11 +125,99 @@
73 125 // its register_pro_modules callback AFTER the action had
74 126 // already fired — Pro modules never appeared in the registry.
75 127 // Caught by the ProStatus sentinel module's integration test.
76 128 add_action( 'plugins_loaded', array( $this, 'fire_module_lifecycle' ), 20 );
129 +
130 + // One-time data migrations keyed on the stored version. Runs in
131 + // admin only — nothing here needs to touch a front-end request.
132 + if ( is_admin() ) {
133 + add_action( 'plugins_loaded', array( $this, 'maybe_upgrade' ), 21 );
134 + }
77 135 }
78 136
79 137 /**
138 + * Add the 1.3.6 tracking params to a saved ignored-params list.
139 + *
140 + * Only those names, and only when missing: anything else the site
141 + * removed stays removed. A site with no saved list already reads the new
142 + * defaults.
143 + */
144 + public static function add_new_ignored_params(): void {
145 + $option = Settings_Manager::OPTION_PREFIX . 'cache';
146 + $stored = get_option( $option, array() );
147 + if ( ! is_array( $stored ) || ! is_array( $stored['ignored_query_params'] ?? null ) ) {
148 + return;
149 + }
150 + $list = $stored['ignored_query_params'];
151 + // An empty list is a choice: every query string bypasses the cache.
152 + if ( empty( $list ) ) {
153 + return;
154 + }
155 + $missing = array_values( array_diff( \XSpeed\Modules\Cache\CacheModule::TRACKING_PARAMS_1_3_6, $list ) );
156 + if ( empty( $missing ) ) {
157 + return;
158 + }
159 + $stored['ignored_query_params'] = array_merge( $list, $missing );
160 + update_option( $option, $stored );
161 + // The drop-in keeps its own copy of the list next to the cache.
162 + if ( defined( 'XSPEED_CACHE_DIR' ) ) {
163 + Cache::sync_query_allowlist();
164 + }
165 + }
166 +
167 + /**
168 + * Run version-gated data migrations exactly once per upgrade.
169 + *
170 + * Keyed on `xspeed_data_version` rather than the plugin version header
171 + * so a migration can be added without forcing a release bump.
172 + */
173 + public function maybe_upgrade(): void {
174 + $current = (string) get_option( 'xspeed_data_version', '0' );
175 + if ( version_compare( $current, self::DATA_VERSION, '>=' ) ) {
176 + return;
177 + }
178 +
179 + // Each step runs once, for the version that needs it. They used to
180 + // run on every bump, which would purge every site's static tree again
181 + // for a migration that has nothing to do with it.
182 +
183 + // 1.1.2 — strip credential values recorded by earlier versions'
184 + // settings change annotations (they're served by the trend endpoints).
185 + if ( version_compare( $current, '1.1.2', '<' ) ) {
186 + Activity_Log::redact_legacy_secrets();
187 + }
188 +
189 + // 1.1.4 — earlier versions cached a failed loopback as "gzip is not
190 + // active" for an hour, which showed up as a bogus server-config
191 + // warning. Drop the stale answer so the fixed probe re-runs instead
192 + // of the wrong verdict living on past the update (issue #18).
193 + if ( version_compare( $current, '1.1.4', '<' ) ) {
194 + delete_transient( 'xspeed_gzip_active' );
195 + }
196 +
197 + // 1.1.6 — a `/?s=<term>` request used to write its results page into
198 + // the static tree under the *searched-from* path, which for the usual
199 + // query-form search is `/`. The web server then served that results
200 + // page as the homepage to every visitor. The write is fixed in
201 + // Cache::store_static(), but an entry poisoned before the update
202 + // outlives it: nothing purges on upgrade, and the static serve path
203 + // never revalidates. Clear the tree once. The flat cache is keyed
204 + // correctly and is deliberately left alone. (issue #191)
205 + if ( version_compare( $current, '1.1.6', '<' ) ) {
206 + Cache::purge_static_tree();
207 + }
208 +
209 + // 1.3.6 — new click and campaign IDs in the default ignored list.
210 + // A site that ever saved the Cache panel has its own copy of the list,
211 + // which the new defaults never reach, so add them to it.
212 + if ( version_compare( $current, '1.3.6', '<' ) ) {
213 + self::add_new_ignored_params();
214 + }
215 +
216 + update_option( 'xspeed_data_version', self::DATA_VERSION, false );
217 + }
218 +
219 + /**
80 220 * Phase 2 of plugin init: fire the registration action (collecting
81 221 * Free + Pro + any third-party modules hooked into
82 222 * `xspeed_register_modules`) and boot the registry.
83 223 *
@@ -84,8 +224,63 @@
84 224 * Runs at plugins_loaded(20) so every add-on that hooks at any
85 225 * priority < 20 has time to register first.
86 226 */
87 227 public function fire_module_lifecycle(): void {
228 + $this->ensure_modules_registered();
229 +
230 + Module_Registry::boot_all();
231 + }
232 +
233 + /**
234 + * Fire `xspeed_register_modules` if this request has not yet, hooking
235 + * Free's own registration first when init() never got the chance.
236 + *
237 + * The activation request is the case that matters. activate_plugin()
238 + * includes the plugin file long after `plugins_loaded` has fired, so the
239 + * `plugins_loaded` callback init() would have added never runs, and
240 + * neither does the add_action() inside it that puts register_free_modules
241 + * on the action. Firing the action from activate() then registered
242 + * nothing: Settings::conflict_safe_profile() composed from an empty
243 + * registry, and a site with WP Super Cache came up with lazy-load,
244 + * resource hints, font swapping and preloading switched on — only the
245 + * four settings the registry-independent fallback names were held down
246 + * (PR #295 review). Module_Registry::activate_all() has been a no-op on
247 + * the same request for the same reason.
248 + *
249 + * On the activation request that means Free only: an add-on cannot have
250 + * hooked yet, because xspeed-pro bails when Free's classes are absent and
251 + * only hooks the action (at priority 20, from plugins_loaded(15)) once
252 + * Free is active. On an ordinary request fire_module_lifecycle() reaches
253 + * this at plugins_loaded(20) with every add-on already hooked. Do not
254 + * call this from anything that can run in between: the action fires
255 + * once, and an add-on that has not hooked yet stays unregistered for the
256 + * whole request.
257 + * did_action() keeps the action to one firing per request, so an
258 + * activation that ran first does not make plugins_loaded(20) register
259 + * every module a second time.
260 + */
261 + public function ensure_modules_registered(): void {
262 + if ( did_action( 'xspeed_register_modules' ) ) {
263 + return;
264 + }
265 +
266 + /*
267 + * register_free_modules() does an unconditional `new` on every module
268 + * class. On an ordinary request xspeed.php's integrity check refuses
269 + * to boot before that can fatal and explains itself in an admin
270 + * notice; the activation hook is registered outside that check, so
271 + * an install missing a module file (truncated zip, a security
272 + * plugin's quarantine, a half-applied update) would fatal here with
273 + * no notice and no active plugin. Same answer as boot: do nothing.
274 + */
275 + if ( function_exists( 'xspeed_missing_core_classes' ) && ! empty( xspeed_missing_core_classes() ) ) {
276 + return;
277 + }
278 +
279 + if ( ! has_action( 'xspeed_register_modules', array( $this, 'register_free_modules' ) ) ) {
280 + add_action( 'xspeed_register_modules', array( $this, 'register_free_modules' ) );
281 + }
282 +
88 283 /**
89 284 * Action: xspeed_register_modules
90 285 *
91 286 * Free modules register at priority 10; xspeed-pro at priority
@@ -92,10 +287,8 @@
92 287 * 20; site code can hook in between to inject custom modules.
93 288 * Fires exactly once per request.
94 289 */
95 290 do_action( 'xspeed_register_modules' );
96 -
97 - Module_Registry::boot_all();
98 291 }
99 292
100 293 /**
101 294 * Register the Free Modules shipped in this plugin. Add new module
@@ -103,8 +296,17 @@
103 296 */
104 297 public function register_free_modules(): void {
105 298 Module_Registry::register( new \XSpeed\Modules\Cache\CacheModule() );
106 299 Module_Registry::register( new \XSpeed\Modules\Health\HealthModule() );
300 + // Settings — owns no settings itself; it's the CLI/MCP surface over
301 + // Settings_Manager. Registering it is what makes `xspeed settings`
302 + // exist, which is what keeps the curated get_settings/update_settings
303 + // tools in the MCP catalog. (#149/#153)
304 + Module_Registry::register( new \XSpeed\Modules\Settings\SettingsModule() );
305 + // External performance scores (PSI / GTmetrix) — Free, off by
306 + // default. Rendered inside the Health host page's PageSpeed tab, so
307 + // it has no sidebar row of its own.
308 + Module_Registry::register( new \XSpeed\Modules\Score\ScoreModule() );
107 309 Module_Registry::register( new \XSpeed\Modules\Preloader\PreloaderModule() );
108 310 Module_Registry::register( new \XSpeed\Modules\Heartbeat\HeartbeatModule() );
109 311 Module_Registry::register( new \XSpeed\Modules\Minify\MinifyModule() );
110 312 Module_Registry::register( new \XSpeed\Modules\Gzip\GzipModule() );
@@ -114,10 +316,22 @@
114 316 Module_Registry::register( new \XSpeed\Modules\Cdn\CdnModule() );
115 317 Module_Registry::register( new \XSpeed\Modules\Cloudflare\CloudflareModule() );
116 318 Module_Registry::register( new \XSpeed\Modules\ObjectCache\ObjectCacheModule() );
117 319 Module_Registry::register( new \XSpeed\Modules\BrowserCache\BrowserCacheModule() );
320 + // Advanced Cache — a Free container row that gathers the Pro
321 + // cache-coverage features (404 / search / feed / REST / rules /
322 + // maintenance) into one sidebar sub-item (FBS-83633).
323 + Module_Registry::register( new \XSpeed\Modules\CacheCoverage\CacheCoverageModule() );
118 324 Module_Registry::register( new \XSpeed\Modules\Fonts\FontsModule() );
325 + Module_Registry::register( new \XSpeed\Modules\TurboRender\TurboRenderModule() );
119 326 Module_Registry::register( new \XSpeed\Modules\ResourceHints\ResourceHintsModule() );
327 + // AI Privacy (GDPR off-switch) ships in Free even though every AI
328 + // *feature* is Pro — privacy is a right, not a paid tier. FEATURES.md
329 + // §AI row 6 mandates it. Without this registration the module was dead
330 + // code: no REST/settings surface, the promised off-switch unreachable
331 + // (FBS-83633 Bug 1). It carries its own cli_commands() so it satisfies
332 + // the CLI/MCP coverage guard once registered.
333 + Module_Registry::register( new \XSpeed\Modules\AIPrivacy\AIPrivacyModule() );
120 334 // Migration moved Pro → Free: it's an acquisition/onboarding feature
121 335 // (detect a competing caching plugin, import its settings, switch over),
122 336 // so it must work without a Pro license. Agency-scale extras (profiles,
123 337 // bulk multisite, host presets) remain Pro.
@@ -126,8 +340,12 @@
126 340 // snapshot is onboarding/diagnostics, not a paid value-add, so every
127 341 // user gets it. The snapshot degrades gracefully without Pro (Pro
128 342 // version/license fields fall back to defaults via defined()/get_option).
129 343 Module_Registry::register( new \XSpeed\Modules\Support\SupportModule() );
344 + // The dashboard control for usage-analytics consent. Consent used to
345 + // be collectable only in the wizard and withdrawable nowhere, while
346 + // the wizard and readme both promised a dashboard switch. (#437)
347 + Module_Registry::register( new \XSpeed\Modules\Privacy\PrivacyModule() );
130 348 // MCP remote control (AI assistants) — Free. The plugin serves the
131 349 // MCP protocol at the site's own /xspeed/mcp URL; the only gate is
132 350 // the per-site connection token an admin mints via Connect. No
133 351 // license, no hosted infra. See IMPLEMENTATION.md §17.
@@ -142,10 +360,11 @@
142 360 public function start_plugin_tracking(): void {
143 361 $this->usage_tracker = Usage_Tracker::get_instance(
144 362 XSPEED_FILE,
145 363 array(
146 - 'opt_in' => true,
147 - 'item_id' => defined( 'XSPEED_INSIGHTS_ITEM_ID' ) ? XSPEED_INSIGHTS_ITEM_ID : false,
364 + 'opt_in' => true,
365 + 'email_marketing' => true,
366 + 'item_id' => defined( 'XSPEED_INSIGHTS_ITEM_ID' ) ? XSPEED_INSIGHTS_ITEM_ID : false,
148 367 )
149 368 );
150 369 $this->usage_tracker->init();
151 370 }
@@ -158,28 +377,163 @@
158 377 return $this->usage_tracker;
159 378 }
160 379
161 380 public static function activate() {
162 - Settings::set_defaults();
381 + // Nothing below can see a module the registry does not hold — the
382 + // conflict-safe profile Settings::set_defaults() may pick is composed
383 + // from it, and activate_all() walks it. See ensure_modules_registered()
384 + // for why the registry is empty on this request without this call.
385 + self::instance()->ensure_modules_registered();
163 386
387 + $profile = Settings::set_defaults();
388 +
389 + // Score history table. Also called on admin_init (see init()) because
390 + // activation does not fire for a site added to a multisite network
391 + // later, nor after an update that ships a new schema version.
392 + Score_Store::maybe_install();
393 +
164 394 if ( ! file_exists( XSPEED_CACHE_DIR ) ) {
165 395 wp_mkdir_p( XSPEED_CACHE_DIR );
166 396 }
167 397 Cache::write_silence( XSPEED_CACHE_DIR );
168 398
169 - // Drop-in installation (advanced-cache.php) and the WP_CACHE constant
170 - // edit happen only when the user explicitly enables caching from the
171 - // admin UI — never on activation. See Cache::toggle() and
172 - // Rest_Api::toggle_cache(). This is a WordPress.org review requirement.
399 + /*
400 + * One exception to "caching is only ever enabled from the admin UI":
401 + * a fresh install another plugin performed on the user's behalf.
402 + *
403 + * That plugin asked the user for site performance and installed us to
404 + * provide it; making them go and find a second switch afterwards is
405 + * a step nobody wants. It is also what the copy-vendored Setup::finish()
406 + * did, so hosts migrating off it keep the behaviour they have.
407 + *
408 + * PROFILE_HOST_PAGE_CACHE is the whole condition, and it means three
409 + * things at once: the install was genuinely fresh, nothing else owns
410 + * the page cache, and another plugin claimed the install. Every other
411 + * fresh install — including a user's own on a clear site — waits for
412 + * the wizard. Every OTHER feature is off in this profile; the cache is
413 + * the one thing a host may assume, because it is what it installed us
414 + * for. And toggle() runs its own ownership transaction, so a
415 + * competitor appearing between the two checks loses the race rather
416 + * than being overwritten.
417 + */
418 + if ( Settings::PROFILE_HOST_PAGE_CACHE === $profile ) {
419 + $state = Cache::toggle( true );
420 + if ( ! empty( $state['blocked'] ) ) {
421 + /*
422 + * Refused after all — a competitor that appeared between the
423 + * profile decision and the write, or a drop-in we could not
424 + * install. The settings are identical either way (everything
425 + * off), so the honest record is the one that does not claim a
426 + * cache: conflict-safe is what the site actually got.
427 + */
428 + $profile = Settings::PROFILE_CONFLICT_SAFE;
429 + update_option( 'xspeed_install_profile', $profile, false );
430 + }
431 + }
173 432
174 - // First-run wizard: flag a one-time redirect for the activating user.
175 - // Suppressed for bulk activations / already-completed sites in
176 - // Onboarding::maybe_redirect().
177 - Onboarding::flag_redirect();
433 + /*
434 + * Read the claim BEFORE spending it. consume_installed_by() records
435 + * the installer only for a FRESH install — on a re-activation over
436 + * settings that are already there it deletes the arming option and
437 + * keeps nothing — so asking again afterwards answered "the user did
438 + * it" about an install a host had just claimed, and the wizard opened
439 + * over the host's own flow. The claim decides who to tell and whether
440 + * to open the wizard; whether it is worth RECORDING is a separate
441 + * question, and only the recording depends on the install being fresh.
442 + */
443 + $installed_by = Settings::installed_by();
178 444
179 - // Propagate activation to every registered Module. Activation
180 - // happens after plugins_loaded → modules are already registered.
445 + // Spend the arming option now the profile is settled. It changes what
446 + // activation does, so it may not survive into the next one.
447 + Settings::consume_installed_by( $profile );
448 +
449 + // Caching is otherwise only ENABLED from the admin UI — see
450 + // Cache::toggle() and Rest_Api::toggle_cache(). A fresh install
451 + // therefore gets no drop-in and no wp-config.php edit here:
452 + // cache_enabled is unset, so the call below is a no-op.
453 + //
454 + // It is NOT a no-op during an upgrade. WordPress runs an update as
455 + // deactivate → wipe files → install → activate, which deletes
456 + // advanced-cache.php while cache_enabled stays true. Restoring it
457 + // here closes the window in which the site silently serves uncached
458 + // (auto_heal() alone only fires on the next wp-admin page load).
459 + Cache::restore_dropin_if_enabled();
460 +
461 + /*
462 + * First-run wizard: flag a one-time redirect for the activating user.
463 + * Suppressed for bulk activations / already-completed sites in
464 + * Onboarding::maybe_redirect() — and here for an install another plugin
465 + * performed, which has an onboarding flow of its own. The install runs
466 + * over AJAX, so our redirect would fire on that admin's NEXT page load
467 + * and pull them out of the middle of the host's wizard; finishing ours
468 + * would then overwrite the deliberately all-off profile they never
469 + * asked to change.
470 + */
471 + if ( '' === $installed_by ) {
472 + Onboarding::flag_redirect();
473 + }
474 +
475 + // Propagate activation to every registered Module — registered by
476 + // ensure_modules_registered() at the top, not by plugins_loaded,
477 + // which fired before this file was even included.
181 478 Module_Registry::activate_all();
479 +
480 + /**
481 + * Fires at the end of activation, once the settings profile is decided.
482 + *
483 + * The other half of the host-plugin contract: a plugin that installed
484 + * xSpeed for the user writes `xspeed_installed_by` before activating
485 + * and listens here to find out how it came up. It carries no return
486 + * value and nothing branches on it — a host that ignores it changes
487 + * nothing about the install.
488 + *
489 + * @param string $installed_by Host slug, or '' when the user did it.
490 + * @param string $profile Settings::PROFILE_* — which profile a fresh
491 + * install came up with, '' if not fresh.
492 + */
493 + do_action( 'xspeed_activated', $installed_by, $profile );
494 + }
495 +
496 + /**
497 + * Restore the cache drop-in right after THIS plugin is updated.
498 + *
499 + * Bound to upgrader_process_complete. Bulk updates, auto-updates and
500 + * host-level updaters finish without re-running activate(), so this is
501 + * the only hook that repairs the drop-in before the next wp-admin page
502 + * load. Narrow by design: bails unless the completed action was a
503 + * plugin update whose payload actually includes xspeed.
504 + *
505 + * @param \WP_Upgrader $upgrader Upgrader instance (unused).
506 + * @param array $hook_extra Contextual data about the update.
507 + * @return void
508 + */
509 + public function maybe_restore_after_update( $upgrader, $hook_extra ) {
510 + unset( $upgrader );
511 +
512 + if ( ! is_array( $hook_extra ) ) {
513 + return;
514 + }
515 + if ( ! isset( $hook_extra['type'], $hook_extra['action'] ) ) {
516 + return;
517 + }
518 + if ( 'plugin' !== $hook_extra['type'] || 'update' !== $hook_extra['action'] ) {
519 + return;
520 + }
521 +
522 + // Single update uses 'plugin'; bulk uses 'plugins'.
523 + $updated = array();
524 + if ( isset( $hook_extra['plugins'] ) && is_array( $hook_extra['plugins'] ) ) {
525 + $updated = $hook_extra['plugins'];
526 + } elseif ( isset( $hook_extra['plugin'] ) && is_string( $hook_extra['plugin'] ) ) {
527 + $updated = array( $hook_extra['plugin'] );
528 + }
529 +
530 + $ours = plugin_basename( XSPEED_FILE );
531 + if ( ! in_array( $ours, $updated, true ) ) {
532 + return;
533 + }
534 +
535 + Cache::restore_dropin_if_enabled();
182 536 }
183 537
184 538 public static function deactivate() {
185 539 // Drop-in + WP_CACHE constant are NOT touched here. WordPress