| 1 |
<?php |
| 2 |
/** |
| 3 |
* Preloader — sitemap-driven cache warmer. |
| 4 |
* |
| 5 |
* On `start()`: |
| 6 |
* 1. Fetches the configured sitemap (or auto-detects /wp-sitemap.xml). |
| 7 |
* 2. Recursively follows nested sitemap indexes. |
| 8 |
* 3. Filters URLs against the Cache module's excluded_urls list. |
| 9 |
* 4. Queues the result in a transient. |
| 10 |
* 5. Schedules the next WP-Cron tick. |
| 11 |
* |
| 12 |
* Each `tick()` processes up to `batch_size` URLs from the queue via |
| 13 |
* `wp_remote_get()` (short timeout, sslverify off for local dev tolerance, |
| 14 |
* a UA that flags itself so site owners can spot crawler traffic in |
| 15 |
* access logs). Cache::should_cache() picks up the GET → writes the cache |
| 16 |
* file on miss. The next visitor sees a HIT. |
| 17 |
* |
| 18 |
* State (transient `xspeed_preloader_state`): |
| 19 |
* { running, started_at, finished_at, queue, processed, total, |
| 20 |
* last_url, errors[] } |
| 21 |
* |
| 22 |
* Configuration comes from PreloaderModule's per-module option |
| 23 |
* (xspeed_module_preloader) via Settings_Manager. |
| 24 |
* |
| 25 |
* @package XSpeed |
| 26 |
*/ |
| 27 |
|
| 28 |
declare(strict_types=1); |
| 29 |
|
| 30 |
namespace XSpeed; |
| 31 |
|
| 32 |
defined( 'ABSPATH' ) || exit; |
| 33 |
|
| 34 |
final class Preloader { |
| 35 |
|
| 36 |
public const STATE_KEY = 'xspeed_preloader_state'; |
| 37 |
public const STATE_TTL = 86400; // 24h — long enough for slow crawls. |
| 38 |
public const CRON_HOOK = 'xspeed_preloader_tick'; |
| 39 |
public const USER_AGENT = 'xSpeed-Preloader/1.0 (+cache warmer; admin-initiated)'; |
| 40 |
public const REQUEST_TIMEOUT = 8; |
| 41 |
|
| 42 |
/** |
| 43 |
* Why the top-level sitemap fetch failed on this request, or '' when it |
| 44 |
* succeeded. Set by fetch_sitemap_urls(), read by resolve_queue() — the |
| 45 |
* reason has to survive the return of an empty array, which is exactly |
| 46 |
* what it could not do before. Request-scoped; never persisted. (#142) |
| 47 |
* |
| 48 |
* @var string |
| 49 |
*/ |
| 50 |
private static $last_sitemap_error = ''; |
| 51 |
|
| 52 |
/** |
| 53 |
* The sitemap URL the last error refers to. Kept beside the message so |
| 54 |
* an error entry can carry a real `url` field like every other one, |
| 55 |
* rather than repeating the URL already inside the message text. |
| 56 |
*/ |
| 57 |
private static $last_sitemap_url = ''; |
| 58 |
|
| 59 |
/** |
| 60 |
* How the queue for the current crawl was built — 'sitemap', 'fallback' |
| 61 |
* (enumerated from the database because the sitemap was unreachable), or |
| 62 |
* 'none'. Surfaced in the state so the panel, REST and CLI can each say |
| 63 |
* what actually happened instead of reporting a bare zero. (#142) |
| 64 |
* |
| 65 |
* @var string |
| 66 |
*/ |
| 67 |
private static $queue_source = 'none'; |
| 68 |
|
| 69 |
/** Largest number of URLs the database fallback will enumerate. */ |
| 70 |
private const FALLBACK_LIMIT = 500; |
| 71 |
|
| 72 |
/** |
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* Kick off a fresh crawl. Returns the initial state. |
| 74 |
*/ |
| 75 |
public static function start(): array { |
| 76 |
$opts = Settings_Manager::get( 'preloader' ); |
| 77 |
$urls = self::resolve_queue( $opts ); |
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|
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// A crawl that queued nothing because the sitemap was unreachable is a |
| 80 |
// FAILURE, and every layer above needs to be able to say so. It used |
| 81 |
// to be indistinguishable from success: errors stayed empty, the REST |
| 82 |
// route returned 200, and the CLI printed a green Success. (#142) |
| 83 |
$sitemap_error = self::$last_sitemap_error; |
| 84 |
$errors = array(); |
| 85 |
if ( '' !== $sitemap_error && empty( $urls ) ) { |
| 86 |
// Same {url, error, ts} shape every other entry uses. A bare |
| 87 |
// string here fataled `wp xspeed preloader status`, which |
| 88 |
// destructures `$e['url']` over the list — and took the MCP |
| 89 |
// `get_preloader_status` tool down with it, so an agent asking |
| 90 |
// why the preload failed got "Cannot access offset of type |
| 91 |
// string on string" instead of the reason this code records. |
| 92 |
// `url` is the sitemap because that is what failed. (QA F1) |
| 93 |
$errors[] = array( |
| 94 |
'url' => self::$last_sitemap_url, |
| 95 |
'error' => $sitemap_error, |
| 96 |
'ts' => time(), |
| 97 |
); |
| 98 |
} |
| 99 |
|
| 100 |
$state = array( |
| 101 |
'running' => ! empty( $urls ), |
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'started_at' => time(), |
| 103 |
'finished_at' => empty( $urls ) ? time() : 0, |
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'queue' => array_values( $urls ), |
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'processed' => 0, |
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'total' => count( $urls ), |
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'last_url' => '', |
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'errors' => $errors, |
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// Consumers render on these: the panel needs to distinguish |
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// "not started" from "ran and found nothing", and to tell the |
| 111 |
// user when the queue came from the fallback rather than the |
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// sitemap they configured. |
| 113 |
'source' => self::$queue_source, |
| 114 |
'sitemap_error' => $sitemap_error, |
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); |
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set_transient( self::STATE_KEY, $state, self::STATE_TTL ); |
| 117 |
|
| 118 |
if ( '' !== $sitemap_error && 'fallback' === self::$queue_source ) { |
| 119 |
$message = sprintf( |
| 120 |
/* translators: 1: number of URLs, 2: the sitemap failure detail. */ |
| 121 |
__( 'Preloader queued %1$d URLs from the site content — %2$s', 'xspeed' ), |
| 122 |
$state['total'], |
| 123 |
$sitemap_error |
| 124 |
); |
| 125 |
$severity = Activity_Log::WARN; |
| 126 |
} elseif ( '' !== $sitemap_error ) { |
| 127 |
$message = sprintf( |
| 128 |
/* translators: %s: the sitemap failure detail. */ |
| 129 |
__( 'Preloader could not start — %s', 'xspeed' ), |
| 130 |
$sitemap_error |
| 131 |
); |
| 132 |
$severity = Activity_Log::WARN; |
| 133 |
} else { |
| 134 |
$message = sprintf( |
| 135 |
/* translators: 1: number of URLs, 2: plural suffix. */ |
| 136 |
__( 'Preloader queued %1$d URL%2$s for warming.', 'xspeed' ), |
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$state['total'], |
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1 === $state['total'] ? '' : 's' |
| 139 |
); |
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$severity = $state['total'] > 0 ? Activity_Log::INFO : Activity_Log::WARN; |
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} |
| 142 |
Activity_Log::record( 'preloader_started', $message, $severity ); |
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|
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// Schedule the first tick ~5 seconds out so the kick-off REST call |
| 145 |
// returns instantly; wp_schedule_single_event covers the |
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// "process the queue ASAP" path without a heavy synchronous loop. |
| 147 |
if ( $state['running'] ) { |
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wp_schedule_single_event( time() + 5, self::CRON_HOOK ); |
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} |
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|
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return $state; |
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} |
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|
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/** |
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* Cancel an in-flight crawl. Idempotent. |
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*/ |
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public static function stop(): array { |
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$state = self::status(); |
| 159 |
if ( $state['running'] ) { |
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Activity_Log::record( |
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'preloader_stopped', |
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sprintf( 'Preloader stopped (%d/%d URLs warmed).', $state['processed'], $state['total'] ), |
| 163 |
Activity_Log::INFO |
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); |
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} |
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|
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// Clear scheduled ticks. |
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wp_clear_scheduled_hook( self::CRON_HOOK ); |
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|
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$state['running'] = false; |
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$state['finished_at'] = time(); |
| 172 |
$state['queue'] = array(); |
| 173 |
set_transient( self::STATE_KEY, $state, self::STATE_TTL ); |
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return $state; |
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} |
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|
| 177 |
public static function status(): array { |
| 178 |
$raw = get_transient( self::STATE_KEY ); |
| 179 |
if ( ! is_array( $raw ) ) { |
| 180 |
return self::empty_state(); |
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} |
| 182 |
return wp_parse_args( $raw, self::empty_state() ); |
| 183 |
} |
| 184 |
|
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private static function empty_state(): array { |
| 186 |
return array( |
| 187 |
'running' => false, |
| 188 |
'started_at' => 0, |
| 189 |
'finished_at' => 0, |
| 190 |
'queue' => array(), |
| 191 |
'processed' => 0, |
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'total' => 0, |
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'last_url' => '', |
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'errors' => array(), |
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); |
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} |
| 197 |
|
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/** |
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* Tick handler — pulls up to batch_size URLs off the queue, warms |
| 200 |
* each, persists state, and reschedules itself until the queue is |
| 201 |
* empty. Called via the xspeed_preloader_tick action. |
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*/ |
| 203 |
public static function tick(): void { |
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$state = self::status(); |
| 205 |
if ( ! $state['running'] || empty( $state['queue'] ) ) { |
| 206 |
if ( $state['running'] ) { |
| 207 |
self::mark_complete( $state ); |
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} |
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return; |
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} |
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|
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$opts = Settings_Manager::get( 'preloader' ); |
| 213 |
$batch = max( 1, min( 50, (int) ( $opts['batch_size'] ?? 5 ) ) ); |
| 214 |
|
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$processed_this_tick = 0; |
| 216 |
while ( $processed_this_tick < $batch && ! empty( $state['queue'] ) ) { |
| 217 |
$url = array_shift( $state['queue'] ); |
| 218 |
self::warm_url( $url, $state ); |
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$state['processed']++; |
| 220 |
$state['last_url'] = $url; |
| 221 |
$processed_this_tick++; |
| 222 |
} |
| 223 |
|
| 224 |
if ( empty( $state['queue'] ) ) { |
| 225 |
self::mark_complete( $state ); |
| 226 |
return; |
| 227 |
} |
| 228 |
|
| 229 |
// More to do — persist + reschedule. Slight delay to avoid |
| 230 |
// hammering the origin with parallel batches. |
| 231 |
set_transient( self::STATE_KEY, $state, self::STATE_TTL ); |
| 232 |
wp_schedule_single_event( time() + 10, self::CRON_HOOK ); |
| 233 |
} |
| 234 |
|
| 235 |
/** |
| 236 |
* Fire a single warm request for one URL with no queue / no cron |
| 237 |
* (the "content warmer" path: new post published → warm its URL |
| 238 |
* immediately). Records an activity event so the user can see in |
| 239 |
* the Health log that warming happened. |
| 240 |
* |
| 241 |
* Best-effort and non-blocking-feeling — uses a short timeout so a |
| 242 |
* dead origin can't hang the calling request. Returns true if the |
| 243 |
* fetch completed with a non-error status, false otherwise. |
| 244 |
*/ |
| 245 |
public static function warm_one( string $url, string $cause = 'manual' ): bool { |
| 246 |
if ( '' === $url ) { |
| 247 |
return false; |
| 248 |
} |
| 249 |
$response = wp_remote_get( |
| 250 |
$url, |
| 251 |
array( |
| 252 |
'timeout' => self::REQUEST_TIMEOUT, |
| 253 |
'sslverify' => false, |
| 254 |
'user-agent' => self::USER_AGENT, |
| 255 |
'blocking' => true, |
| 256 |
) |
| 257 |
); |
| 258 |
if ( is_wp_error( $response ) ) { |
| 259 |
Activity_Log::record( |
| 260 |
'preloader_warm_failed', |
| 261 |
sprintf( 'Warm %s failed (%s): %s', $cause, $url, $response->get_error_message() ), |
| 262 |
Activity_Log::WARN |
| 263 |
); |
| 264 |
return false; |
| 265 |
} |
| 266 |
$code = (int) wp_remote_retrieve_response_code( $response ); |
| 267 |
if ( $code >= 400 ) { |
| 268 |
Activity_Log::record( |
| 269 |
'preloader_warm_failed', |
| 270 |
sprintf( 'Warm %s failed (%s): HTTP %d', $cause, $url, $code ), |
| 271 |
Activity_Log::WARN |
| 272 |
); |
| 273 |
return false; |
| 274 |
} |
| 275 |
Activity_Log::record( |
| 276 |
'preloader_warmed_one', |
| 277 |
sprintf( 'Warmed %s (%s)', $url, $cause ), |
| 278 |
Activity_Log::INFO |
| 279 |
); |
| 280 |
return true; |
| 281 |
} |
| 282 |
|
| 283 |
private static function warm_url( string $url, array &$state ): void { |
| 284 |
$response = wp_remote_get( |
| 285 |
$url, |
| 286 |
array( |
| 287 |
'timeout' => self::REQUEST_TIMEOUT, |
| 288 |
'sslverify' => false, |
| 289 |
'user-agent' => self::USER_AGENT, |
| 290 |
'headers' => array( |
| 291 |
'Accept' => 'text/html,application/xhtml+xml', |
| 292 |
), |
| 293 |
'blocking' => true, |
| 294 |
) |
| 295 |
); |
| 296 |
if ( is_wp_error( $response ) ) { |
| 297 |
$state['errors'][] = array( |
| 298 |
'url' => $url, |
| 299 |
'error' => $response->get_error_message(), |
| 300 |
'ts' => time(), |
| 301 |
); |
| 302 |
// Cap retained errors so a broken sitemap doesn't blow the |
| 303 |
// transient size. |
| 304 |
$state['errors'] = array_slice( $state['errors'], -20 ); |
| 305 |
return; |
| 306 |
} |
| 307 |
$code = (int) wp_remote_retrieve_response_code( $response ); |
| 308 |
if ( $code >= 400 ) { |
| 309 |
$state['errors'][] = array( |
| 310 |
'url' => $url, |
| 311 |
'error' => sprintf( 'HTTP %d', $code ), |
| 312 |
'ts' => time(), |
| 313 |
); |
| 314 |
$state['errors'] = array_slice( $state['errors'], -20 ); |
| 315 |
} |
| 316 |
} |
| 317 |
|
| 318 |
private static function mark_complete( array $state ): void { |
| 319 |
$state['running'] = false; |
| 320 |
$state['finished_at'] = time(); |
| 321 |
$state['queue'] = array(); |
| 322 |
set_transient( self::STATE_KEY, $state, self::STATE_TTL ); |
| 323 |
|
| 324 |
Activity_Log::record( |
| 325 |
'preloader_completed', |
| 326 |
sprintf( |
| 327 |
'Preloader finished — %d/%d URLs warmed, %d error%s.', |
| 328 |
$state['processed'], |
| 329 |
$state['total'], |
| 330 |
count( $state['errors'] ), |
| 331 |
1 === count( $state['errors'] ) ? '' : 's' |
| 332 |
), |
| 333 |
empty( $state['errors'] ) ? Activity_Log::SUCCESS : Activity_Log::WARN |
| 334 |
); |
| 335 |
} |
| 336 |
|
| 337 |
/** |
| 338 |
* Build the URL queue for a fresh crawl: parse the sitemap, follow |
| 339 |
* nested indexes, drop excluded paths. |
| 340 |
* |
| 341 |
* @return string[] |
| 342 |
*/ |
| 343 |
private static function resolve_queue( array $opts ): array { |
| 344 |
// Request-scoped statics: reset so a previous crawl in the same |
| 345 |
// process can't leak its verdict into this one. |
| 346 |
self::$last_sitemap_error = ''; |
| 347 |
self::$last_sitemap_url = ''; |
| 348 |
self::$queue_source = 'none'; |
| 349 |
|
| 350 |
$sitemap = trim( (string) ( $opts['sitemap_url'] ?? '' ) ); |
| 351 |
if ( '' === $sitemap ) { |
| 352 |
$sitemap = home_url( '/wp-sitemap.xml' ); |
| 353 |
} |
| 354 |
|
| 355 |
$urls = self::fetch_sitemap_urls( $sitemap, 0 ); |
| 356 |
$from = empty( $urls ) ? 'none' : 'sitemap'; |
| 357 |
|
| 358 |
/* |
| 359 |
* A missing sitemap must not disable the feature. Two very common |
| 360 |
* setups produce one with no misconfiguration by the user: |
| 361 |
* `blog_public = 0` (WordPress disables /wp-sitemap.xml outright, |
| 362 |
* standard on staging and pre-launch sites), and an SEO plugin |
| 363 |
* filtering `wp_sitemaps_enabled` to false while serving its own |
| 364 |
* sitemap at a path we were never told about. |
| 365 |
* |
| 366 |
* Enumerate warmable URLs straight from the database instead. Only |
| 367 |
* on a genuine fetch FAILURE — a sitemap that is reachable and |
| 368 |
* legitimately empty is a real answer, and silently crawling |
| 369 |
* something else would be worse than doing nothing. (#142) |
| 370 |
*/ |
| 371 |
if ( empty( $urls ) && '' !== self::$last_sitemap_error ) { |
| 372 |
$urls = self::fallback_urls(); |
| 373 |
$from = empty( $urls ) ? 'none' : 'fallback'; |
| 374 |
} |
| 375 |
|
| 376 |
$cache_opts = Settings_Manager::get( 'cache' ); |
| 377 |
$excluded = is_array( $cache_opts['excluded_urls'] ?? null ) ? $cache_opts['excluded_urls'] : array(); |
| 378 |
if ( ! empty( $excluded ) ) { |
| 379 |
$urls = array_filter( |
| 380 |
$urls, |
| 381 |
static function ( $u ) use ( $excluded ) { |
| 382 |
$path = (string) wp_parse_url( $u, PHP_URL_PATH ); |
| 383 |
foreach ( $excluded as $needle ) { |
| 384 |
if ( '' !== $needle && false !== strpos( $path, (string) $needle ) ) { |
| 385 |
return false; |
| 386 |
} |
| 387 |
} |
| 388 |
return true; |
| 389 |
} |
| 390 |
); |
| 391 |
} |
| 392 |
|
| 393 |
// Dedup + cap at 5000 to bound the transient size on huge sites. |
| 394 |
$urls = array_values( array_unique( $urls ) ); |
| 395 |
$urls = array_slice( $urls, 0, 5000 ); |
| 396 |
|
| 397 |
/* |
| 398 |
* Commit the verdict only now, AFTER the exclusion filter — the |
| 399 |
* source describes what we ACTUALLY queued, not what we hoped to. |
| 400 |
* Setting it earlier let a queue that the exclusions stripped to |
| 401 |
* nothing still claim `fallback`, so the panel announced "Warmed |
| 402 |
* from site content" over 0 URLs, and `crawlFailed` (which needs |
| 403 |
* source !== 'fallback' at total 0) could never become true. |
| 404 |
* One assignment fixes both. (QA F2/F3 on #155) |
| 405 |
*/ |
| 406 |
self::$queue_source = empty( $urls ) ? 'none' : $from; |
| 407 |
|
| 408 |
return $urls; |
| 409 |
} |
| 410 |
|
| 411 |
/** |
| 412 |
* Enumerate warmable URLs from the database, for sites whose sitemap |
| 413 |
* can't be fetched. Deliberately modest in scope: the home page, then |
| 414 |
* the most recently modified public posts across every public post type. |
| 415 |
* Newest-first is the right bias — those are the URLs most likely to be |
| 416 |
* requested and least likely to be warm already. |
| 417 |
* |
| 418 |
* Uses WP_Query rather than SQL so post-type registration, status |
| 419 |
* handling and multisite switching all behave the way the rest of |
| 420 |
* WordPress does. |
| 421 |
* |
| 422 |
* @return string[] |
| 423 |
*/ |
| 424 |
private static function fallback_urls(): array { |
| 425 |
$urls = array(); |
| 426 |
$home = (string) home_url( '/' ); |
| 427 |
if ( '' !== trim( $home, '/' ) ) { |
| 428 |
$urls[] = $home; |
| 429 |
} |
| 430 |
|
| 431 |
$types = get_post_types( |
| 432 |
array( |
| 433 |
'public' => true, |
| 434 |
'publicly_queryable' => true, |
| 435 |
) |
| 436 |
); |
| 437 |
// `page` is public but not publicly_queryable, so the query above |
| 438 |
// misses it — and pages are exactly what a warm cache wants most. |
| 439 |
// Only add it when the site has post types at all: an empty list |
| 440 |
// means there is nothing to enumerate, and constructing a WP_Query |
| 441 |
// for it would be wasted work. |
| 442 |
if ( ! empty( $types ) ) { |
| 443 |
$types['page'] = 'page'; |
| 444 |
unset( $types['attachment'] ); |
| 445 |
} |
| 446 |
|
| 447 |
if ( empty( $types ) || ! class_exists( '\WP_Query' ) ) { |
| 448 |
return $urls; |
| 449 |
} |
| 450 |
|
| 451 |
$query = new \WP_Query( |
| 452 |
array( |
| 453 |
'post_type' => array_values( $types ), |
| 454 |
'post_status' => 'publish', |
| 455 |
'posts_per_page' => self::FALLBACK_LIMIT, |
| 456 |
'orderby' => 'modified', |
| 457 |
'order' => 'DESC', |
| 458 |
'ignore_sticky_posts' => true, |
| 459 |
'no_found_rows' => true, |
| 460 |
'update_post_meta_cache' => false, |
| 461 |
'update_post_term_cache' => false, |
| 462 |
'fields' => 'ids', |
| 463 |
) |
| 464 |
); |
| 465 |
|
| 466 |
foreach ( $query->posts as $post_id ) { |
| 467 |
$permalink = get_permalink( (int) $post_id ); |
| 468 |
if ( is_string( $permalink ) && '' !== $permalink ) { |
| 469 |
$urls[] = $permalink; |
| 470 |
} |
| 471 |
} |
| 472 |
|
| 473 |
return array_values( array_unique( $urls ) ); |
| 474 |
} |
| 475 |
|
| 476 |
/** |
| 477 |
* Recursive sitemap parser. Depth-limited to 3 so a maliciously |
| 478 |
* deep index can't stack-overflow. |
| 479 |
*/ |
| 480 |
private static function fetch_sitemap_urls( string $sitemap_url, int $depth ): array { |
| 481 |
if ( $depth > 3 ) { |
| 482 |
return array(); |
| 483 |
} |
| 484 |
$res = wp_remote_get( |
| 485 |
$sitemap_url, |
| 486 |
array( |
| 487 |
'timeout' => self::REQUEST_TIMEOUT, |
| 488 |
'sslverify' => false, |
| 489 |
'user-agent' => self::USER_AGENT, |
| 490 |
) |
| 491 |
); |
| 492 |
if ( is_wp_error( $res ) ) { |
| 493 |
// Record WHY, don't just vanish. "Unreachable" and "valid but |
| 494 |
// empty" both used to collapse into an empty array here, which is |
| 495 |
// what made a sitemap-less site look like a successful crawl of |
| 496 |
// zero URLs. Only the top-level fetch is recorded: a nested index |
| 497 |
// failing is a partial result, not a dead crawl. (#142) |
| 498 |
if ( 0 === $depth ) { |
| 499 |
self::$last_sitemap_error = sprintf( |
| 500 |
/* translators: 1: sitemap URL, 2: error detail. */ |
| 501 |
__( 'Could not fetch the sitemap at %1$s — %2$s', 'xspeed' ), |
| 502 |
$sitemap_url, |
| 503 |
$res->get_error_message() |
| 504 |
); |
| 505 |
self::$last_sitemap_url = (string) $sitemap_url; |
| 506 |
} |
| 507 |
return array(); |
| 508 |
} |
| 509 |
$code = (int) wp_remote_retrieve_response_code( $res ); |
| 510 |
if ( $code >= 400 ) { |
| 511 |
if ( 0 === $depth ) { |
| 512 |
self::$last_sitemap_error = sprintf( |
| 513 |
/* translators: 1: sitemap URL, 2: HTTP status code. */ |
| 514 |
__( 'Could not fetch the sitemap at %1$s — the server returned HTTP %2$d.', 'xspeed' ), |
| 515 |
$sitemap_url, |
| 516 |
$code |
| 517 |
); |
| 518 |
self::$last_sitemap_url = (string) $sitemap_url; |
| 519 |
} |
| 520 |
return array(); |
| 521 |
} |
| 522 |
$body = (string) wp_remote_retrieve_body( $res ); |
| 523 |
if ( '' === $body ) { |
| 524 |
return array(); |
| 525 |
} |
| 526 |
|
| 527 |
$urls = array(); |
| 528 |
// Sitemap index → recurse. |
| 529 |
if ( false !== strpos( $body, '<sitemapindex' ) ) { |
| 530 |
if ( preg_match_all( '#<loc>([^<]+)</loc>#i', $body, $matches ) ) { |
| 531 |
foreach ( $matches[1] as $child ) { |
| 532 |
$urls = array_merge( $urls, self::fetch_sitemap_urls( trim( $child ), $depth + 1 ) ); |
| 533 |
} |
| 534 |
} |
| 535 |
return $urls; |
| 536 |
} |
| 537 |
// URL set → collect. |
| 538 |
if ( preg_match_all( '#<loc>([^<]+)</loc>#i', $body, $matches ) ) { |
| 539 |
foreach ( $matches[1] as $u ) { |
| 540 |
$u = trim( $u ); |
| 541 |
if ( '' !== $u && false !== filter_var( $u, FILTER_VALIDATE_URL ) ) { |
| 542 |
$urls[] = $u; |
| 543 |
} |
| 544 |
} |
| 545 |
} |
| 546 |
return $urls; |
| 547 |
} |
| 548 |
|
| 549 |
/** |
| 550 |
* Apply the user's schedule choice. Called on settings change. |
| 551 |
* Manual = no cron schedule (user must hit "Start now" to crawl). |
| 552 |
*/ |
| 553 |
public static function apply_schedule( string $schedule ): void { |
| 554 |
wp_clear_scheduled_hook( 'xspeed_preloader_recurring' ); |
| 555 |
if ( in_array( $schedule, array( 'hourly', 'daily', 'weekly' ), true ) ) { |
| 556 |
if ( ! wp_next_scheduled( 'xspeed_preloader_recurring' ) ) { |
| 557 |
wp_schedule_event( time() + 60, $schedule, 'xspeed_preloader_recurring' ); |
| 558 |
} |
| 559 |
} |
| 560 |
} |
| 561 |
|
| 562 |
/** |
| 563 |
* Recurring schedule hook handler — fires per the user's chosen |
| 564 |
* cadence and kicks off a fresh crawl unless one is already running. |
| 565 |
*/ |
| 566 |
public static function recurring_kickoff(): void { |
| 567 |
$state = self::status(); |
| 568 |
if ( $state['running'] ) { |
| 569 |
return; |
| 570 |
} |
| 571 |
self::start(); |
| 572 |
} |
| 573 |
} |
| 574 |
|
