| 1 |
<?php |
| 2 |
/** |
| 3 |
* Docket Cache. |
| 4 |
* |
| 5 |
* @author Nawawi Jamili |
| 6 |
* @license MIT |
| 7 |
* |
| 8 |
* @see https://github.com/nawawi/docket-cache |
| 9 |
*/ |
| 10 |
|
| 11 |
namespace Nawawi\DocketCache; |
| 12 |
|
| 13 |
\defined('ABSPATH') || exit; |
| 14 |
|
| 15 |
final class CronAgent |
| 16 |
{ |
| 17 |
private $is_pingpong; |
| 18 |
private $pt; |
| 19 |
|
| 20 |
public function __construct(Plugin $pt) |
| 21 |
{ |
| 22 |
$this->pt = $pt; |
| 23 |
$this->is_pingpong = false; |
| 24 |
|
| 25 |
// warn issue: a non-numeric value encountered |
| 26 |
!\defined('WP_CRON_LOCK_TIMEOUT') && \define('WP_CRON_LOCK_TIMEOUT', MINUTE_IN_SECONDS); |
| 27 |
} |
| 28 |
|
| 29 |
public function register() |
| 30 |
{ |
| 31 |
add_action( |
| 32 |
'wp', |
| 33 |
function () { |
| 34 |
$this->receive_ping(); |
| 35 |
}, |
| 36 |
\PHP_INT_MIN |
| 37 |
); |
| 38 |
|
| 39 |
add_action( |
| 40 |
'shutdown', |
| 41 |
function () { |
| 42 |
$this->check_connection(); |
| 43 |
}, |
| 44 |
\PHP_INT_MAX |
| 45 |
); |
| 46 |
|
| 47 |
add_filter( |
| 48 |
'docketcache/filter/active/cronbot', |
| 49 |
function ($status) { |
| 50 |
$status = $status ? 'on' : 'off'; |
| 51 |
|
| 52 |
return $this->send_action($status); |
| 53 |
}, |
| 54 |
\PHP_INT_MAX |
| 55 |
); |
| 56 |
|
| 57 |
add_filter( |
| 58 |
'docketcache/filter/check/cronbot', |
| 59 |
function () { |
| 60 |
return $this->send_action('on', 'pong'); |
| 61 |
}, |
| 62 |
\PHP_INT_MAX |
| 63 |
); |
| 64 |
|
| 65 |
add_filter( |
| 66 |
'docketcache/filter/runevent/cronbot', |
| 67 |
function ($runnow) { |
| 68 |
$is_switch = $this->pt->switch_cron_site(); |
| 69 |
|
| 70 |
$results = $this->run_wpcron($runnow); |
| 71 |
|
| 72 |
if (!empty($results) && \is_array($results) && !empty($results['wpcron_return'])) { |
| 73 |
@Crawler::fetch_admin(admin_url('/')); |
| 74 |
} else { |
| 75 |
$results = false; |
| 76 |
} |
| 77 |
|
| 78 |
if ($is_switch) { |
| 79 |
restore_current_blog(); |
| 80 |
} |
| 81 |
|
| 82 |
return $results; |
| 83 |
}, |
| 84 |
\PHP_INT_MAX |
| 85 |
); |
| 86 |
} |
| 87 |
|
| 88 |
private function is_ping_request() |
| 89 |
{ |
| 90 |
return !empty($_POST['ping']) && !empty($_GET['docketcache_ping']) && !empty($_SERVER['REQUEST_URI']) && false !== strpos($_SERVER['REQUEST_URI'], '/?docketcache_ping='); |
| 91 |
} |
| 92 |
|
| 93 |
private function maybe_disable_wp_cron() |
| 94 |
{ |
| 95 |
// signal wp do not run wp-cron |
| 96 |
$this->pt->cf()->maybe_define('DISABLE_WP_CRON', true); |
| 97 |
} |
| 98 |
|
| 99 |
private function send_action($action, $is_hello = false) |
| 100 |
{ |
| 101 |
$is_quick = $is_hello && 'pong' !== $is_hello ? true : false; |
| 102 |
$is_pong = 'pong' === $is_hello; |
| 103 |
|
| 104 |
$uip = $this->pt->get_user_ip(); |
| 105 |
|
| 106 |
static $stmp = 0; |
| 107 |
static $cache = []; |
| 108 |
|
| 109 |
if (isset($cache[$uip])) { |
| 110 |
return $cache[$uip]; |
| 111 |
} |
| 112 |
|
| 113 |
$site_url = $this->pt->site_url(); |
| 114 |
$site_key = substr(md5($site_url), 0, 22); |
| 115 |
$site_body = $this->pt->nw_encrypt($site_url, $site_key); |
| 116 |
$site_id = $this->pt->nw_encrypt($site_key, $site_body); |
| 117 |
|
| 118 |
$args = [ |
| 119 |
'blocking' => $is_quick ? false : true, |
| 120 |
'body' => [ |
| 121 |
'timestamp' => date('Y-m-d H:i:s T'), |
| 122 |
'timezone' => wp_timezone_string(), |
| 123 |
'site' => $this->pt->base64_encode_url($site_body), |
| 124 |
'meta' => $this->pt->site_meta(), |
| 125 |
'status' => $action, |
| 126 |
], |
| 127 |
'headers' => [ |
| 128 |
'REFERER' => $this->pt->site_url(true, true), |
| 129 |
'DOCKETID' => $site_id, |
| 130 |
'DOCKETOB' => $this->pt->cx()->validate() ? 'on' : 'off', |
| 131 |
], |
| 132 |
]; |
| 133 |
|
| 134 |
if (0 === $stmp) { |
| 135 |
$stmp = time() + 120; |
| 136 |
} |
| 137 |
|
| 138 |
$cronbot_endpoint = $this->pt->cronbot_endpoint.'/checkstatus?v='.$stmp; |
| 139 |
|
| 140 |
if (!@is_file(__DIR__.'/Crawler.php') || !class_exists('Nawawi\\DocketCache\\Crawler')) { |
| 141 |
return false; |
| 142 |
} |
| 143 |
|
| 144 |
$results = Crawler::post($cronbot_endpoint, $args); |
| 145 |
|
| 146 |
if ($is_quick) { |
| 147 |
return true; |
| 148 |
} |
| 149 |
|
| 150 |
$output = [ |
| 151 |
'timestamp' => time(), |
| 152 |
'endpoint' => $cronbot_endpoint, |
| 153 |
'connected' => false, |
| 154 |
'last_status' => $action, |
| 155 |
'request' => [ |
| 156 |
'headers' => $args['headers'], |
| 157 |
'content' => $args['body'], |
| 158 |
], |
| 159 |
]; |
| 160 |
|
| 161 |
if (is_wp_error($results)) { |
| 162 |
$output['error'] = $results->get_error_message(); |
| 163 |
|
| 164 |
$this->pt->co()->save_part($output, 'cronbot'); |
| 165 |
$this->pt->co()->lookup_set('cronboterror', $output['error']); |
| 166 |
|
| 167 |
$cache[$uip] = false; |
| 168 |
|
| 169 |
return false; |
| 170 |
} |
| 171 |
|
| 172 |
$output['response'] = wp_remote_retrieve_body($results); |
| 173 |
if (!empty($output['response'])) { |
| 174 |
$output['response'] = json_decode($output['response'], true); |
| 175 |
if (\JSON_ERROR_NONE === json_last_error()) { |
| 176 |
if (!empty($output['response']['error'])) { |
| 177 |
$output['error'] = $output['response']['error']; |
| 178 |
|
| 179 |
$this->pt->co()->save_part($output, 'cronbot'); |
| 180 |
$this->pt->co()->lookup_set('cronboterror', $output['error']); |
| 181 |
|
| 182 |
$cache[$uip] = false; |
| 183 |
|
| 184 |
return false; |
| 185 |
} |
| 186 |
} |
| 187 |
} |
| 188 |
|
| 189 |
$code = (int) wp_remote_retrieve_response_code($results); |
| 190 |
if ($code > 400) { |
| 191 |
$output['error'] = $code; |
| 192 |
|
| 193 |
if (!$is_pong) { |
| 194 |
$this->pt->co()->save_part($output, 'cronbot'); |
| 195 |
} |
| 196 |
|
| 197 |
$this->pt->co()->lookup_set('cronboterror', 'Error '.$output['error']); |
| 198 |
|
| 199 |
$cache[$uip] = false; |
| 200 |
|
| 201 |
return false; |
| 202 |
} |
| 203 |
|
| 204 |
$output['connected'] = 'off' === $action ? false : true; |
| 205 |
|
| 206 |
if (!$is_pong) { |
| 207 |
$this->pt->co()->save_part($output, 'cronbot'); |
| 208 |
} |
| 209 |
|
| 210 |
$cache[$uip] = true; |
| 211 |
|
| 212 |
return true; |
| 213 |
} |
| 214 |
|
| 215 |
private function close_ping($response) |
| 216 |
{ |
| 217 |
$output = $response; |
| 218 |
$output['request'] = array_filter( |
| 219 |
$_SERVER, |
| 220 |
function ($arr) { |
| 221 |
if ('HTTP_' === substr($arr, 0, 5)) { |
| 222 |
return true; |
| 223 |
} |
| 224 |
}, |
| 225 |
\ARRAY_FILTER_USE_KEY |
| 226 |
); |
| 227 |
|
| 228 |
$output['selfcheck'] = time() + 5400; // 90min |
| 229 |
$this->pt->co()->save_part($output, 'pings'); |
| 230 |
|
| 231 |
$this->pt->json_header(); |
| 232 |
$this->pt->close_exit(json_encode($response, \JSON_UNESCAPED_SLASHES)); |
| 233 |
} |
| 234 |
|
| 235 |
private function run_wpcron($run_now = false) |
| 236 |
{ |
| 237 |
$this->pt->cf()->maybe_define('DOING_RUN_WPCRON', true); |
| 238 |
|
| 239 |
$run_uno = false; |
| 240 |
$uno_ehk = ''; |
| 241 |
$uno_eky = ''; |
| 242 |
if (!empty($run_now) && \is_array($run_now)) { |
| 243 |
if (empty($run_now['ehk']) || empty($run_now['eky'])) { |
| 244 |
$results['wpcron_return'] = 0; |
| 245 |
$results['wpcron_msg'] = esc_html__('Invalid request for single event', 'docket-cache'); |
| 246 |
|
| 247 |
return $results; |
| 248 |
} |
| 249 |
|
| 250 |
$uno_ehk = sanitize_text_field($run_now['ehk']); |
| 251 |
$uno_eky = sanitize_text_field($run_now['eky']); |
| 252 |
|
| 253 |
if (!has_action($uno_ehk)) { |
| 254 |
$results['wpcron_return'] = 1; |
| 255 |
|
| 256 |
/* translators: %s: Event Hook. */ |
| 257 |
$results['wpcron_msg'] = sprintf(esc_html__('Event hook not found %s', 'docket-cache'), $uno_ehk); |
| 258 |
|
| 259 |
return $results; |
| 260 |
} |
| 261 |
|
| 262 |
$run_now = true; |
| 263 |
$run_uno = true; |
| 264 |
} |
| 265 |
|
| 266 |
$crons = $this->pt->get_crons($run_now, $cron_event); |
| 267 |
|
| 268 |
$results = [ |
| 269 |
'wpcron_return' => 0, |
| 270 |
'wpcron_msg' => '', |
| 271 |
'wpcron_crons' => $cron_event, |
| 272 |
'wpcron_event' => 0, |
| 273 |
]; |
| 274 |
|
| 275 |
if (empty($crons)) { |
| 276 |
$results['wpcron_return'] = 1; |
| 277 |
$results['wpcron_msg'] = esc_html__('No scheduled event ready to run', 'docket-cache'); |
| 278 |
|
| 279 |
return $results; |
| 280 |
} |
| 281 |
|
| 282 |
if (false !== strpos($_SERVER['REQUEST_URI'], '/wp-cron.php') || isset($_GET['doing_wp_cron']) || wp_doing_cron()) { |
| 283 |
$results['wpcron_return'] = 1; |
| 284 |
$results['wpcron_msg'] = esc_html__('Another cron process is currently running wp-cron.php', 'docket-cache'); |
| 285 |
|
| 286 |
return $results; |
| 287 |
} |
| 288 |
|
| 289 |
$gmt_time = microtime(true); |
| 290 |
|
| 291 |
// overwrite cron lock |
| 292 |
$doing_wp_cron = sprintf('%.22F', microtime(true)); |
| 293 |
set_transient('doing_cron', $doing_wp_cron, 86400); |
| 294 |
|
| 295 |
$run_event = 0; |
| 296 |
$slowdown = 0; |
| 297 |
$delay = $this->is_pingpong ? 850 : 200; |
| 298 |
|
| 299 |
$max_execution_time = $this->pt->get_max_execution_time(); |
| 300 |
|
| 301 |
foreach ($crons as $timestamp => $cronhooks) { |
| 302 |
if ($max_execution_time > 0 && (microtime(true) - WP_START_TIMESTAMP) > $max_execution_time) { |
| 303 |
break; |
| 304 |
} |
| 305 |
|
| 306 |
if (false === $run_now && ($timestamp > $gmt_time)) { |
| 307 |
continue; |
| 308 |
} |
| 309 |
|
| 310 |
if ($slowdown > 10) { |
| 311 |
$slowdown = 0; |
| 312 |
usleep($delay); |
| 313 |
} |
| 314 |
|
| 315 |
++$slowdown; |
| 316 |
|
| 317 |
foreach ($cronhooks as $hook => $keys) { |
| 318 |
if (!has_action($hook)) { |
| 319 |
// wp_clear_scheduled_hook($hook); |
| 320 |
continue; |
| 321 |
} |
| 322 |
|
| 323 |
// single |
| 324 |
if ($run_uno && $hook !== $uno_ehk) { |
| 325 |
continue; |
| 326 |
} |
| 327 |
|
| 328 |
foreach ($keys as $k => $v) { |
| 329 |
// single |
| 330 |
if ($run_uno && $k !== $uno_eky) { |
| 331 |
continue; |
| 332 |
} |
| 333 |
|
| 334 |
$schedule = $v['schedule']; |
| 335 |
|
| 336 |
if ($schedule) { |
| 337 |
if (false === wp_reschedule_event($timestamp, $schedule, $hook, $v['args'])) { |
| 338 |
continue; |
| 339 |
} |
| 340 |
} |
| 341 |
|
| 342 |
if (false === wp_unschedule_event($timestamp, $hook, $v['args'])) { |
| 343 |
continue; |
| 344 |
} |
| 345 |
|
| 346 |
$hcontent = ''; |
| 347 |
try { |
| 348 |
ob_start(); |
| 349 |
do_action_ref_array($hook, $v['args']); |
| 350 |
$hcontent = trim(ob_get_contents()); |
| 351 |
ob_end_clean(); |
| 352 |
++$run_event; |
| 353 |
} catch (\Throwable $e) { |
| 354 |
$results['wpcron_error'][$hook] = $e->getMessage(); |
| 355 |
// wp_clear_scheduled_hook($hook); |
| 356 |
|
| 357 |
if ($run_uno) { |
| 358 |
$results['wpcron_return'] = 0; |
| 359 |
$results['wpcron_event'] = 1; |
| 360 |
$results['wpcron_uno'] = $uno_ehk; |
| 361 |
break; |
| 362 |
} |
| 363 |
--$run_event; |
| 364 |
} |
| 365 |
|
| 366 |
if ('' !== $hcontent) { |
| 367 |
$results['wpcron_output'][$hook] = $hcontent; |
| 368 |
} |
| 369 |
|
| 370 |
usleep(100); |
| 371 |
} |
| 372 |
} |
| 373 |
} |
| 374 |
|
| 375 |
unset($crons, $cronhooks, $hook, $keys); |
| 376 |
|
| 377 |
// lock must below 10 minutes |
| 378 |
// wp-includes/cron.php -> spawn_cron() |
| 379 |
// wp-cron.php |
| 380 |
$lock_wp_cron = microtime(true) + 300; |
| 381 |
set_transient('doing_cron', $lock_wp_cron, 86400); |
| 382 |
|
| 383 |
$results['wpcron_return'] = 1; |
| 384 |
$results['wpcron_event'] = $run_event; |
| 385 |
|
| 386 |
if ($run_uno && 1 === $run_event) { |
| 387 |
$results['wpcron_uno'] = $uno_ehk; |
| 388 |
} |
| 389 |
|
| 390 |
return $results; |
| 391 |
} |
| 392 |
|
| 393 |
private function receive_ping() |
| 394 |
{ |
| 395 |
if (headers_sent() || !$this->is_ping_request()) { |
| 396 |
return; |
| 397 |
} |
| 398 |
|
| 399 |
if ($_POST['ping'] !== md5($_GET['docketcache_ping'])) { |
| 400 |
$this->close_ping('Invalid ping'); |
| 401 |
|
| 402 |
return; |
| 403 |
} |
| 404 |
|
| 405 |
// signal wp do not run wp-cron |
| 406 |
$this->maybe_disable_wp_cron(); |
| 407 |
|
| 408 |
$site_url = $this->pt->site_url(); |
| 409 |
|
| 410 |
if (!empty($_POST['token'])) { |
| 411 |
$verify = $this->pt->nw_decrypt($_POST['token'], $_POST['ping']); |
| 412 |
if ($verify !== $site_url) { |
| 413 |
$this->close_ping('Invalid token'); |
| 414 |
|
| 415 |
return; |
| 416 |
} |
| 417 |
} |
| 418 |
|
| 419 |
$uagent = $this->pt->get_user_agent(); |
| 420 |
if (false === strpos($uagent, 'docket-cache/') || !@preg_match('@compatible;\s+cronbot/[0-9\.]+;\s+docket\-cache/[0-9\.]+;\s+@', $uagent)) { |
| 421 |
$this->close_ping('Invalid version'); |
| 422 |
|
| 423 |
return; |
| 424 |
} |
| 425 |
|
| 426 |
$uip = $this->pt->get_user_ip(); |
| 427 |
|
| 428 |
static $cache = []; |
| 429 |
if (!empty($cache[$uip])) { |
| 430 |
return $cache[$uip]; |
| 431 |
} |
| 432 |
|
| 433 |
$response = [ |
| 434 |
'timestamp' => date('Y-m-d H:i:s T'), |
| 435 |
'timezone' => wp_timezone_string(), |
| 436 |
'site' => $this->pt->site_url(), |
| 437 |
'meta' => $this->pt->site_meta(), |
| 438 |
'status' => 1, |
| 439 |
]; |
| 440 |
|
| 441 |
if ($this->pt->cf()->is_dcfalse('CRONBOT')) { |
| 442 |
$response['status'] = 0; |
| 443 |
$cache[$uip] = $response; |
| 444 |
$this->close_ping($response); |
| 445 |
} |
| 446 |
|
| 447 |
if ($this->pt->co()->lockproc('receive_ping', time() + 60)) { |
| 448 |
$response['msg'] = esc_html__('Already received. Try again in a few minutes', 'docket-cache'); |
| 449 |
$this->close_ping($response); |
| 450 |
|
| 451 |
return false; |
| 452 |
} |
| 453 |
|
| 454 |
$this->is_pingpong = true; |
| 455 |
$is_multisite = is_multisite(); |
| 456 |
$siteall = 0; |
| 457 |
$sites = $this->pt->get_network_sites($siteall); |
| 458 |
$maxrun = 0; |
| 459 |
$maxcan = (int) $this->pt->cf()->dcvalue('CRONBOT_MAX'); |
| 460 |
$maxcan = $maxcan < 1 ? 5 : $maxcan; |
| 461 |
$halt = false; |
| 462 |
|
| 463 |
// finish it if user connection closed |
| 464 |
if (\function_exists('ignore_user_abort')) { |
| 465 |
ignore_user_abort(true); |
| 466 |
} |
| 467 |
|
| 468 |
foreach ($sites as $num => $site) { |
| 469 |
if ($halt) { |
| 470 |
break; |
| 471 |
} |
| 472 |
|
| 473 |
if ($is_multisite) { |
| 474 |
switch_to_blog($site['id']); |
| 475 |
} |
| 476 |
|
| 477 |
if ($maxrun >= $maxcan) { |
| 478 |
$results = [ |
| 479 |
'wpcron_return' => 3, |
| 480 |
'wpcron_msg' => 'Reach maximum run: '.$maxrun.'/'.$siteall, |
| 481 |
'wpcron_crons' => 0, |
| 482 |
'wpcron_event' => 0, |
| 483 |
]; |
| 484 |
$halt = true; |
| 485 |
} else { |
| 486 |
$results = $this->run_wpcron(); |
| 487 |
} |
| 488 |
|
| 489 |
if ($is_multisite) { |
| 490 |
restore_current_blog(); |
| 491 |
} |
| 492 |
|
| 493 |
if ($site['is_main']) { |
| 494 |
$response = array_merge($response, $results); |
| 495 |
--$maxrun; |
| 496 |
} else { |
| 497 |
$response['site_'.$site['id']] = [ |
| 498 |
'site' => $site['url'], |
| 499 |
'wpcron' => $results, |
| 500 |
]; |
| 501 |
} |
| 502 |
++$maxrun; |
| 503 |
|
| 504 |
usleep(100); |
| 505 |
} |
| 506 |
|
| 507 |
unset($sites); |
| 508 |
|
| 509 |
$cache[$uip] = $response; |
| 510 |
|
| 511 |
$this->is_pingpong = false; |
| 512 |
$this->close_ping($cache[$uip]); |
| 513 |
} |
| 514 |
|
| 515 |
private function check_connection() |
| 516 |
{ |
| 517 |
static $done = false; |
| 518 |
|
| 519 |
if ($done) { |
| 520 |
return; |
| 521 |
} |
| 522 |
|
| 523 |
if (\function_exists('wp_is_maintenance_mode') && wp_is_maintenance_mode()) { |
| 524 |
return; |
| 525 |
} |
| 526 |
|
| 527 |
// only main site |
| 528 |
if (!is_main_site() || $this->pt->cf()->is_true('WP_IMPORTING') || $this->pt->is_request_from_theme_editor() || $this->is_ping_request()) { |
| 529 |
return; |
| 530 |
} |
| 531 |
|
| 532 |
if ($this->pt->co()->lockexp('check_connection')) { |
| 533 |
return; |
| 534 |
} |
| 535 |
|
| 536 |
$crondata = $this->pt->co()->get_part('cronbot', true); |
| 537 |
if (empty($crondata)) { |
| 538 |
return; |
| 539 |
} |
| 540 |
|
| 541 |
if (\is_array($crondata) && !empty($crondata['connected'])) { |
| 542 |
$pingdata = $this->pt->co()->get_part('pings', true); |
| 543 |
if (empty($pingdata)) { |
| 544 |
return; |
| 545 |
} |
| 546 |
if (\is_array($pingdata) && !empty($pingdata['selfcheck'])) { |
| 547 |
$selfcheck = $pingdata['selfcheck']; |
| 548 |
if (0 === $this->pt->sanitize_timestamp($selfcheck)) { |
| 549 |
return; |
| 550 |
} |
| 551 |
|
| 552 |
$locktime = time() + 300; // 5min |
| 553 |
if (($selfcheck > 0 && time() > $selfcheck) && $this->pt->co()->setlock('check_connection', $locktime)) { |
| 554 |
// signal wp do not run wp-cron |
| 555 |
$this->maybe_disable_wp_cron(); |
| 556 |
|
| 557 |
// go background if possible |
| 558 |
$this->pt->fastcgi_close(); |
| 559 |
$this->send_action('on', true); |
| 560 |
|
| 561 |
$pingdata['selfcheck'] = time() + 5400; // 90min |
| 562 |
$this->pt->co()->save_part($pingdata, 'pings'); |
| 563 |
|
| 564 |
if (!empty($crondata) && !$this->pt->cx()->validate()) { |
| 565 |
$crondata['connected'] = false; |
| 566 |
$this->pt->co()->save_part($crondata, 'cronbot'); |
| 567 |
} |
| 568 |
|
| 569 |
$done = true; |
| 570 |
} |
| 571 |
} |
| 572 |
} |
| 573 |
|
| 574 |
unset($crondata); |
| 575 |
} |
| 576 |
} |
| 577 |
|
