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xSpeed Cache: AI-Powered Performance Hub with MCP, Caching & CDN / 1.4.1
xSpeed Cache: AI-Powered Performance Hub with MCP, Caching & CDN v1.4.1
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xspeed / includes / class-plugin.php

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1 <?php
2 /**
3 * Main plugin bootstrap.
4 *
5 * @package XSpeed
6 */
7
8 namespace XSpeed;
9
10 defined( 'ABSPATH' ) || exit;
11
12 class Plugin {
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
20 private static $instance = null;
21
22 /** @var Usage_Tracker|null */
23 private $usage_tracker = null;
24
25 public static function instance() {
26 if ( null === self::$instance ) {
27 self::$instance = new self();
28 }
29 return self::$instance;
30 }
31
32 public function init() {
33 // v1 services that are NOT yet wrapped as Modules (Admin, Rest_Api,
34 // Cache, Onboarding) are instantiated directly. Minifier is now
35 // instantiated by MinifyModule::boot(); Gzip is purely static.
36 new Admin();
37 new Rest_Api();
38 new Cache();
39 new Rest_Cache();
40 new Onboarding();
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
49 // Opt-in usage analytics. Instantiating + init() only registers the
50 // cron callback; NOTHING is collected or sent until the admin opts in
51 // from the setup wizard (Onboarding wires the consent toggle to
52 // Usage_Tracker::opt_in()). See class-usage-tracker.php privacy contract.
53 $this->start_plugin_tracking();
54
55 // Auto-heal the cache drop-in + WP_CACHE constant when state
56 // drifts. Scoped to admin_init only: filesystem writes belong in
57 // an authenticated admin context, never on anonymous front-end
58 // requests. The user already opted in (cache_enabled=true) —
59 // this is a consistency check, not a new install path. First
60 // admin page load after a plugin upgrade restores the state;
61 // front-end then serves from cache on the next request.
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' ) );
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
76 // Per-post cache rules (Phase 3.4) — registers postmeta with
77 // REST + meta box on edit screens.
78 Cache_Meta_Box::boot();
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
84 // Phase 0 architecture — managers + Free modules. v1 services
85 // (Cache/Minifier/Gzip) are NOT yet Modules; they'll be refactored
86 // in a follow-up PR with parity tests.
87 Conflict_Registry::boot();
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 // Remembers the terms a post had before a save, so a narrow purge
108 // can clear the category it left as well as the one it joined.
109 Affected_Pages::boot();
110 // Records which pages run a post list of their own (a page builder
111 // grid, a related-posts block), so a narrow purge clears them too.
112 Listing_Pages::boot();
113
114 // Tell WP Statistics and Slimstat not to count the warmer, the
115 // benchmark and the verifier as visitors. Record-time filters only;
116 // see the class for why the tracking snippet itself is left alone.
117 Self_Traffic::boot();
118
119 // Register Free modules via the same action xspeed-pro uses, so
120 // the bootstrap path is symmetric across tiers.
121 add_action( 'xspeed_register_modules', array( $this, 'register_free_modules' ) );
122
123 // Fire the registration action + boot the registry at a LATER
124 // plugins_loaded priority so add-on plugins (xspeed-pro, in
125 // alphabetical order so it runs at default priority 10 AFTER
126 // us, but any add-on loaded at plugins_loaded(< 20)) have a
127 // chance to register their `xspeed_register_modules` callback
128 // before we fire the action.
129 //
130 // Bug history: previously this fired inline from init() at
131 // priority 10. xspeed-pro's plugins_loaded(15) hook then added
132 // its register_pro_modules callback AFTER the action had
133 // already fired — Pro modules never appeared in the registry.
134 // Caught by the ProStatus sentinel module's integration test.
135 add_action( 'plugins_loaded', array( $this, 'fire_module_lifecycle' ), 20 );
136
137 // One-time data migrations keyed on the stored version. Runs in
138 // admin only — nothing here needs to touch a front-end request.
139 if ( is_admin() ) {
140 add_action( 'plugins_loaded', array( $this, 'maybe_upgrade' ), 21 );
141 }
142 }
143
144 /**
145 * Add the 1.3.6 tracking params to a saved ignored-params list.
146 *
147 * Only those names, and only when missing: anything else the site
148 * removed stays removed. A site with no saved list already reads the new
149 * defaults.
150 */
151 public static function add_new_ignored_params(): void {
152 $option = Settings_Manager::OPTION_PREFIX . 'cache';
153 $stored = get_option( $option, array() );
154 if ( ! is_array( $stored ) || ! is_array( $stored['ignored_query_params'] ?? null ) ) {
155 return;
156 }
157 $list = $stored['ignored_query_params'];
158 // An empty list is a choice: every query string bypasses the cache.
159 if ( empty( $list ) ) {
160 return;
161 }
162 $missing = array_values( array_diff( \XSpeed\Modules\Cache\CacheModule::TRACKING_PARAMS_1_3_6, $list ) );
163 if ( empty( $missing ) ) {
164 return;
165 }
166 $stored['ignored_query_params'] = array_merge( $list, $missing );
167 update_option( $option, $stored );
168 // The drop-in keeps its own copy of the list next to the cache.
169 if ( defined( 'XSPEED_CACHE_DIR' ) ) {
170 Cache::sync_query_allowlist();
171 }
172 }
173
174 /**
175 * Run version-gated data migrations exactly once per upgrade.
176 *
177 * Keyed on `xspeed_data_version` rather than the plugin version header
178 * so a migration can be added without forcing a release bump.
179 */
180 public function maybe_upgrade(): void {
181 $current = (string) get_option( 'xspeed_data_version', '0' );
182 if ( version_compare( $current, self::DATA_VERSION, '>=' ) ) {
183 return;
184 }
185
186 // Each step runs once, for the version that needs it. They used to
187 // run on every bump, which would purge every site's static tree again
188 // for a migration that has nothing to do with it.
189
190 // 1.1.2 — strip credential values recorded by earlier versions'
191 // settings change annotations (they're served by the trend endpoints).
192 if ( version_compare( $current, '1.1.2', '<' ) ) {
193 Activity_Log::redact_legacy_secrets();
194 }
195
196 // 1.1.4 — earlier versions cached a failed loopback as "gzip is not
197 // active" for an hour, which showed up as a bogus server-config
198 // warning. Drop the stale answer so the fixed probe re-runs instead
199 // of the wrong verdict living on past the update (issue #18).
200 if ( version_compare( $current, '1.1.4', '<' ) ) {
201 delete_transient( 'xspeed_gzip_active' );
202 }
203
204 // 1.1.6 — a `/?s=<term>` request used to write its results page into
205 // the static tree under the *searched-from* path, which for the usual
206 // query-form search is `/`. The web server then served that results
207 // page as the homepage to every visitor. The write is fixed in
208 // Cache::store_static(), but an entry poisoned before the update
209 // outlives it: nothing purges on upgrade, and the static serve path
210 // never revalidates. Clear the tree once. The flat cache is keyed
211 // correctly and is deliberately left alone. (issue #191)
212 if ( version_compare( $current, '1.1.6', '<' ) ) {
213 $removed = Cache::purge_static_tree();
214
215 /*
216 * And tell anything caching in front of us, because the poisoned
217 * entry is exactly the kind that reaches an edge: the web server
218 * served it straight off disk as the homepage, so a CDN in front had
219 * every opportunity to store it. Deleting our copy leaves that one
220 * untouched, and the edge's lifetime is the longer of the two.
221 *
222 * Announced on `init` rather than here. This runs at
223 * `plugins_loaded` 21, before an add-on has wired its purge
224 * listeners, so firing it inline would announce to an empty room.
225 * Priority 99 puts it after any reasonable `init` registration.
226 *
227 * Once per site, on the upgrade that clears the tree — never again,
228 * since the data version is written immediately below.
229 *
230 * Through `Cache::announce_purge()` rather than a bare `do_action`,
231 * because the purge-event contract (#348) is more than the payload:
232 * it forwards to the server caches by direct call before the public
233 * action runs, and it isolates listeners so one throwing add-on
234 * cannot fatal the first admin request after an update. A raw
235 * publish here would skip both and hand listeners the pre-contract
236 * payload shape.
237 */
238 add_action(
239 'init',
240 static function () use ( $removed ) {
241 Cache::announce_purge( 'static cache repaired on upgrade', $removed );
242 },
243 99
244 );
245 }
246
247 // 1.3.6 — new click and campaign IDs in the default ignored list.
248 // A site that ever saved the Cache panel has its own copy of the list,
249 // which the new defaults never reach, so add them to it.
250 if ( version_compare( $current, '1.3.6', '<' ) ) {
251 self::add_new_ignored_params();
252 }
253
254 update_option( 'xspeed_data_version', self::DATA_VERSION, false );
255 }
256
257 /**
258 * Phase 2 of plugin init: fire the registration action (collecting
259 * Free + Pro + any third-party modules hooked into
260 * `xspeed_register_modules`) and boot the registry.
261 *
262 * Runs at plugins_loaded(20) so every add-on that hooks at any
263 * priority < 20 has time to register first.
264 */
265 public function fire_module_lifecycle(): void {
266 $this->ensure_modules_registered();
267
268 Module_Registry::boot_all();
269 }
270
271 /**
272 * Fire `xspeed_register_modules` if this request has not yet, hooking
273 * Free's own registration first when init() never got the chance.
274 *
275 * The activation request is the case that matters. activate_plugin()
276 * includes the plugin file long after `plugins_loaded` has fired, so the
277 * `plugins_loaded` callback init() would have added never runs, and
278 * neither does the add_action() inside it that puts register_free_modules
279 * on the action. Firing the action from activate() then registered
280 * nothing: Settings::conflict_safe_profile() composed from an empty
281 * registry, and a site with WP Super Cache came up with lazy-load,
282 * resource hints, font swapping and preloading switched on — only the
283 * four settings the registry-independent fallback names were held down
284 * (PR #295 review). Module_Registry::activate_all() has been a no-op on
285 * the same request for the same reason.
286 *
287 * On the activation request that means Free only: an add-on cannot have
288 * hooked yet, because xspeed-pro bails when Free's classes are absent and
289 * only hooks the action (at priority 20, from plugins_loaded(15)) once
290 * Free is active. On an ordinary request fire_module_lifecycle() reaches
291 * this at plugins_loaded(20) with every add-on already hooked. Do not
292 * call this from anything that can run in between: the action fires
293 * once, and an add-on that has not hooked yet stays unregistered for the
294 * whole request.
295 * did_action() keeps the action to one firing per request, so an
296 * activation that ran first does not make plugins_loaded(20) register
297 * every module a second time.
298 */
299 public function ensure_modules_registered(): void {
300 if ( did_action( 'xspeed_register_modules' ) ) {
301 return;
302 }
303
304 /*
305 * register_free_modules() does an unconditional `new` on every module
306 * class. On an ordinary request xspeed.php's integrity check refuses
307 * to boot before that can fatal and explains itself in an admin
308 * notice; the activation hook is registered outside that check, so
309 * an install missing a module file (truncated zip, a security
310 * plugin's quarantine, a half-applied update) would fatal here with
311 * no notice and no active plugin. Same answer as boot: do nothing.
312 */
313 if ( function_exists( 'xspeed_missing_core_classes' ) && ! empty( xspeed_missing_core_classes() ) ) {
314 return;
315 }
316
317 if ( ! has_action( 'xspeed_register_modules', array( $this, 'register_free_modules' ) ) ) {
318 add_action( 'xspeed_register_modules', array( $this, 'register_free_modules' ) );
319 }
320
321 /**
322 * Action: xspeed_register_modules
323 *
324 * Free modules register at priority 10; xspeed-pro at priority
325 * 20; site code can hook in between to inject custom modules.
326 * Fires exactly once per request.
327 */
328 do_action( 'xspeed_register_modules' );
329 }
330
331 /**
332 * Register the Free Modules shipped in this plugin. Add new module
333 * registrations here. Pro plugin hooks the same action separately.
334 */
335 public function register_free_modules(): void {
336 Module_Registry::register( new \XSpeed\Modules\Cache\CacheModule() );
337 Module_Registry::register( new \XSpeed\Modules\Health\HealthModule() );
338 // Settings — owns no settings itself; it's the CLI/MCP surface over
339 // Settings_Manager. Registering it is what makes `xspeed settings`
340 // exist, which is what keeps the curated get_settings/update_settings
341 // tools in the MCP catalog. (#149/#153)
342 Module_Registry::register( new \XSpeed\Modules\Settings\SettingsModule() );
343 // External performance scores (PSI / GTmetrix) — Free, off by
344 // default. Rendered inside the Health host page's PageSpeed tab, so
345 // it has no sidebar row of its own.
346 Module_Registry::register( new \XSpeed\Modules\Score\ScoreModule() );
347 Module_Registry::register( new \XSpeed\Modules\Preloader\PreloaderModule() );
348 Module_Registry::register( new \XSpeed\Modules\Heartbeat\HeartbeatModule() );
349 Module_Registry::register( new \XSpeed\Modules\Minify\MinifyModule() );
350 Module_Registry::register( new \XSpeed\Modules\Gzip\GzipModule() );
351 Module_Registry::register( new \XSpeed\Modules\Lazy\LazyModule() );
352 Module_Registry::register( new \XSpeed\Modules\Bloat\BloatModule() );
353 Module_Registry::register( new \XSpeed\Modules\Database\DatabaseModule() );
354 Module_Registry::register( new \XSpeed\Modules\Cdn\CdnModule() );
355 Module_Registry::register( new \XSpeed\Modules\Cloudflare\CloudflareModule() );
356 Module_Registry::register( new \XSpeed\Modules\ObjectCache\ObjectCacheModule() );
357 Module_Registry::register( new \XSpeed\Modules\BrowserCache\BrowserCacheModule() );
358 // Advanced Cache — a Free container row that gathers the Pro
359 // cache-coverage features (404 / search / feed / REST / rules /
360 // maintenance) into one sidebar sub-item (FBS-83633).
361 Module_Registry::register( new \XSpeed\Modules\CacheCoverage\CacheCoverageModule() );
362 Module_Registry::register( new \XSpeed\Modules\Fonts\FontsModule() );
363 Module_Registry::register( new \XSpeed\Modules\TurboRender\TurboRenderModule() );
364 Module_Registry::register( new \XSpeed\Modules\ResourceHints\ResourceHintsModule() );
365 // AI Privacy (GDPR off-switch) ships in Free even though every AI
366 // *feature* is Pro — privacy is a right, not a paid tier. FEATURES.md
367 // §AI row 6 mandates it. Without this registration the module was dead
368 // code: no REST/settings surface, the promised off-switch unreachable
369 // (FBS-83633 Bug 1). It carries its own cli_commands() so it satisfies
370 // the CLI/MCP coverage guard once registered.
371 Module_Registry::register( new \XSpeed\Modules\AIPrivacy\AIPrivacyModule() );
372 // Migration moved Pro → Free: it's an acquisition/onboarding feature
373 // (detect a competing caching plugin, import its settings, switch over),
374 // so it must work without a Pro license. Agency-scale extras (profiles,
375 // bulk multisite, host presets) remain Pro.
376 Module_Registry::register( new \XSpeed\Modules\Migration\MigrationModule() );
377 // Help & Support moved Pro → Free: a ticket link + read-only system
378 // snapshot is onboarding/diagnostics, not a paid value-add, so every
379 // user gets it. The snapshot degrades gracefully without Pro (Pro
380 // version/license fields fall back to defaults via defined()/get_option).
381 Module_Registry::register( new \XSpeed\Modules\Support\SupportModule() );
382 // The dashboard control for usage-analytics consent. Consent used to
383 // be collectable only in the wizard and withdrawable nowhere, while
384 // the wizard and readme both promised a dashboard switch. (#437)
385 Module_Registry::register( new \XSpeed\Modules\Privacy\PrivacyModule() );
386 // MCP remote control (AI assistants) — Free. The plugin serves the
387 // MCP protocol at the site's own /xspeed/mcp URL; the only gate is
388 // the per-site connection token an admin mints via Connect. No
389 // license, no hosted infra. See IMPLEMENTATION.md §17.
390 Module_Registry::register( new \XSpeed\Modules\Mcp\McpModule() );
391 }
392
393 /**
394 * Boot the opt-in usage tracker. Registers the cron sender only; the send
395 * itself is consent-gated inside Usage_Tracker. The instance is held so the
396 * onboarding REST handler can flip consent via usage_tracker()->opt_in().
397 */
398 public function start_plugin_tracking(): void {
399 $this->usage_tracker = Usage_Tracker::get_instance(
400 XSPEED_FILE,
401 array(
402 'opt_in' => true,
403 'email_marketing' => true,
404 'item_id' => defined( 'XSPEED_INSIGHTS_ITEM_ID' ) ? XSPEED_INSIGHTS_ITEM_ID : false,
405 )
406 );
407 $this->usage_tracker->init();
408 }
409
410 /**
411 * The shared Usage_Tracker singleton (or null if tracking wasn't booted,
412 * e.g. on the activation hook before init() runs).
413 */
414 public function usage_tracker(): ?Usage_Tracker {
415 return $this->usage_tracker;
416 }
417
418 public static function activate() {
419 // Nothing below can see a module the registry does not hold — the
420 // conflict-safe profile Settings::set_defaults() may pick is composed
421 // from it, and activate_all() walks it. See ensure_modules_registered()
422 // for why the registry is empty on this request without this call.
423 self::instance()->ensure_modules_registered();
424
425 $profile = Settings::set_defaults();
426
427 // Score history table. Also called on admin_init (see init()) because
428 // activation does not fire for a site added to a multisite network
429 // later, nor after an update that ships a new schema version.
430 Score_Store::maybe_install();
431
432 if ( ! file_exists( XSPEED_CACHE_DIR ) ) {
433 wp_mkdir_p( XSPEED_CACHE_DIR );
434 }
435 Cache::write_silence( XSPEED_CACHE_DIR );
436
437 /*
438 * One exception to "caching is only ever enabled from the admin UI":
439 * a fresh install another plugin performed on the user's behalf.
440 *
441 * That plugin asked the user for site performance and installed us to
442 * provide it; making them go and find a second switch afterwards is
443 * a step nobody wants. It is also what the copy-vendored Setup::finish()
444 * did, so hosts migrating off it keep the behaviour they have.
445 *
446 * PROFILE_HOST_PAGE_CACHE is the whole condition, and it means three
447 * things at once: the install was genuinely fresh, nothing else owns
448 * the page cache, and another plugin claimed the install. Every other
449 * fresh install — including a user's own on a clear site — waits for
450 * the wizard. Every OTHER feature is off in this profile; the cache is
451 * the one thing a host may assume, because it is what it installed us
452 * for. And toggle() runs its own ownership transaction, so a
453 * competitor appearing between the two checks loses the race rather
454 * than being overwritten.
455 */
456 if ( Settings::PROFILE_HOST_PAGE_CACHE === $profile ) {
457 $state = Cache::toggle( true );
458 if ( ! empty( $state['blocked'] ) ) {
459 /*
460 * Refused after all — a competitor that appeared between the
461 * profile decision and the write, or a drop-in we could not
462 * install. The settings are identical either way (everything
463 * off), so the honest record is the one that does not claim a
464 * cache: conflict-safe is what the site actually got.
465 */
466 $profile = Settings::PROFILE_CONFLICT_SAFE;
467 update_option( 'xspeed_install_profile', $profile, false );
468 }
469 }
470
471 /*
472 * Read the claim BEFORE spending it. consume_installed_by() records
473 * the installer only for a FRESH install — on a re-activation over
474 * settings that are already there it deletes the arming option and
475 * keeps nothing — so asking again afterwards answered "the user did
476 * it" about an install a host had just claimed, and the wizard opened
477 * over the host's own flow. The claim decides who to tell and whether
478 * to open the wizard; whether it is worth RECORDING is a separate
479 * question, and only the recording depends on the install being fresh.
480 */
481 $installed_by = Settings::installed_by();
482
483 // Spend the arming option now the profile is settled. It changes what
484 // activation does, so it may not survive into the next one.
485 Settings::consume_installed_by( $profile );
486
487 // Caching is otherwise only ENABLED from the admin UI — see
488 // Cache::toggle() and Rest_Api::toggle_cache(). A fresh install
489 // therefore gets no drop-in and no wp-config.php edit here:
490 // cache_enabled is unset, so the call below is a no-op.
491 //
492 // It is NOT a no-op during an upgrade. WordPress runs an update as
493 // deactivate → wipe files → install → activate, which deletes
494 // advanced-cache.php while cache_enabled stays true. Restoring it
495 // here closes the window in which the site silently serves uncached
496 // (auto_heal() alone only fires on the next wp-admin page load).
497 Cache::restore_dropin_if_enabled();
498
499 /*
500 * First-run wizard: flag a one-time redirect for the activating user.
501 * Suppressed for bulk activations / already-completed sites in
502 * Onboarding::maybe_redirect() — and here for an install another plugin
503 * performed, which has an onboarding flow of its own. The install runs
504 * over AJAX, so our redirect would fire on that admin's NEXT page load
505 * and pull them out of the middle of the host's wizard; finishing ours
506 * would then overwrite the deliberately all-off profile they never
507 * asked to change.
508 */
509 if ( '' === $installed_by ) {
510 Onboarding::flag_redirect();
511 }
512
513 // Propagate activation to every registered Module — registered by
514 // ensure_modules_registered() at the top, not by plugins_loaded,
515 // which fired before this file was even included.
516 Module_Registry::activate_all();
517
518 /**
519 * Fires at the end of activation, once the settings profile is decided.
520 *
521 * The other half of the host-plugin contract: a plugin that installed
522 * xSpeed for the user writes `xspeed_installed_by` before activating
523 * and listens here to find out how it came up. It carries no return
524 * value and nothing branches on it — a host that ignores it changes
525 * nothing about the install.
526 *
527 * @param string $installed_by Host slug, or '' when the user did it.
528 * @param string $profile Settings::PROFILE_* — which profile a fresh
529 * install came up with, '' if not fresh.
530 */
531 do_action( 'xspeed_activated', $installed_by, $profile );
532
533 /*
534 * Announce the change to anything caching in front of us.
535 *
536 * Activation writes the default settings and activates modules, so
537 * every URL on the site starts returning different HTML. A CDN
538 * holding renders from before goes on serving them for their whole
539 * lifetime, and nothing told it.
540 *
541 * Cheap on a fresh install — there is nothing to sweep — and the
542 * case it exists for is reactivation on a site that has been running
543 * for months behind an edge.
544 */
545 Cache::purge_all( 'plugin activated' );
546 }
547
548 /**
549 * Restore the cache drop-in right after THIS plugin is updated.
550 *
551 * Bound to upgrader_process_complete. Bulk updates, auto-updates and
552 * host-level updaters finish without re-running activate(), so this is
553 * the only hook that repairs the drop-in before the next wp-admin page
554 * load. Narrow by design: bails unless the completed action was a
555 * plugin update whose payload actually includes xspeed.
556 *
557 * @param \WP_Upgrader $upgrader Upgrader instance (unused).
558 * @param array $hook_extra Contextual data about the update.
559 * @return void
560 */
561 public function maybe_restore_after_update( $upgrader, $hook_extra ) {
562 unset( $upgrader );
563
564 if ( ! is_array( $hook_extra ) ) {
565 return;
566 }
567 if ( ! isset( $hook_extra['type'], $hook_extra['action'] ) ) {
568 return;
569 }
570 if ( 'plugin' !== $hook_extra['type'] || 'update' !== $hook_extra['action'] ) {
571 return;
572 }
573
574 // Single update uses 'plugin'; bulk uses 'plugins'.
575 $updated = array();
576 if ( isset( $hook_extra['plugins'] ) && is_array( $hook_extra['plugins'] ) ) {
577 $updated = $hook_extra['plugins'];
578 } elseif ( isset( $hook_extra['plugin'] ) && is_string( $hook_extra['plugin'] ) ) {
579 $updated = array( $hook_extra['plugin'] );
580 }
581
582 $ours = plugin_basename( XSPEED_FILE );
583 if ( ! in_array( $ours, $updated, true ) ) {
584 return;
585 }
586
587 Cache::restore_dropin_if_enabled();
588 }
589
590 /**
591 * @param bool $network_wide Whether a network admin deactivated the
592 * plugin for every site (WordPress passes this
593 * to deactivation hooks).
594 */
595 public static function deactivate( $network_wide = false ) {
596 // Drop-in + WP_CACHE constant are NOT touched here. WordPress
597 // upgrades run as deactivate → wipe files → install → activate,
598 // so removing those artifacts on every deactivate would silently
599 // disable caching after each plugin update. uninstall.php
600 // handles full teardown when the user actually removes the
601 // plugin; auto_heal() restores state on the next admin_init if
602 // the drop-in or WP_CACHE went missing for any other reason.
603 Cache::purge_all();
604 // purge_all() is site-scoped and no longer touches min/, so clear it
605 // here. On a network where only this site is deactivating, the other
606 // sites still link those files: drop this site's manifests only.
607 if ( is_multisite() && ! $network_wide ) {
608 Minifier::purge_manifests( Asset_Manifest::blog_id() );
609 } else {
610 Minifier::purge_minified();
611 }
612 Gzip::apply( false );
613
614 Module_Registry::deactivate_all();
615 }
616 }
617