| Dir : /home/trave494/misipress.com/wp-content/plugins/wp-automatic/plugin-updates/Puc/v4p9/ |
| Server: Linux ngx353.inmotionhosting.com 4.18.0-553.22.1.lve.1.el8.x86_64 #1 SMP Tue Oct 8 15:52:54 UTC 2024 x86_64 IP: 209.182.202.254 |
| Dir : /home/trave494/misipress.com/wp-content/plugins/wp-automatic/plugin-updates/Puc/v4p9/Scheduler.php |
<?php
if ( !class_exists('Puc_v4p9_Scheduler', false) ):
/**
* The scheduler decides when and how often to check for updates.
* It calls @see Puc_v4p9_UpdateChecker::checkForUpdates() to perform the actual checks.
*/
class Puc_v4p9_Scheduler {
public $checkPeriod = 12; //How often to check for updates (in hours).
public $throttleRedundantChecks = false; //Check less often if we already know that an update is available.
public $throttledCheckPeriod = 72;
protected $hourlyCheckHooks = array('load-update.php');
/**
* @var Puc_v4p9_UpdateChecker
*/
protected $updateChecker;
private $cronHook = null;
/**
* Scheduler constructor.
*
* @param Puc_v4p9_UpdateChecker $updateChecker
* @param int $checkPeriod How often to check for updates (in hours).
* @param array $hourlyHooks
*/
public function __construct($updateChecker, $checkPeriod, $hourlyHooks = array('load-plugins.php')) {
$this->updateChecker = $updateChecker;
$this->checkPeriod = $checkPeriod;
//Set up the periodic update checks
$this->cronHook = $this->updateChecker->getUniqueName('cron_check_updates');
if ( $this->checkPeriod > 0 ){
//Trigger the check via Cron.
//Try to use one of the default schedules if possible as it's less likely to conflict
//with other plugins and their custom schedules.
$defaultSchedules = array(
1 => 'hourly',
12 => 'twicedaily',
24 => 'daily',
);
if ( array_key_exists($this->checkPeriod, $defaultSchedules) ) {
$scheduleName = $defaultSchedules[$this->checkPeriod];
} else {
//Use a custom cron schedule.
$scheduleName = 'every' . $this->checkPeriod . 'hours';
add_filter('cron_schedules', array($this, '_addCustomSchedule'));
}
if ( !wp_next_scheduled($this->cronHook) && !defined('WP_INSTALLING') ) {
//Randomly offset the schedule to help prevent update server traffic spikes. Without this
//most checks may happen during times of day when people are most likely to install new plugins.
$firstCheckTime = time() - rand(0, max($this->checkPeriod * 3600 - 15 * 60, 1));
$firstCheckTime = apply_filters(
$this->updateChecker->getUniqueName('first_check_time'),
$firstCheckTime
);
wp_schedule_event($firstCheckTime, $scheduleName, $this->cronHook);
}
add_action($this->cronHook, array($this, 'maybeCheckForUpdates'));
//In case Cron is disabled or unreliable, we also manually trigger
//the periodic checks while the user is browsing the Dashboard.
add_action( 'admin_init', array($this, 'maybeCheckForUpdates') );
//Like WordPress itself, we check more often on certain pages.
/** @see wp_update_plugins */
add_action('load-update-core.php', array($this, 'maybeCheckForUpdates'));
//"load-update.php" and "load-plugins.php" or "load-themes.php".
$this->hourlyCheckHooks = array_merge($this->hourlyCheckHooks, $hourlyHooks);
foreach($this->hourlyCheckHooks as $hook) {
add_action($hook, array($this, 'maybeCheckForUpdates'));
}
//This hook fires after a bulk update is complete.
add_action('upgrader_process_complete', array($this, 'upgraderProcessComplete'), 11, 2);
} else {
//Periodic checks are disabled.
wp_clear_scheduled_hook($this->cronHook);
}
}
/**
* Runs upon the WP action upgrader_process_complete.
*
* We look at the parameters to decide whether to call maybeCheckForUpdates() or not.
* We also check if the update checker has been removed by the update.
*
* @param WP_Upgrader $upgrader WP_Upgrader instance
* @param array $upgradeInfo extra information about the upgrade
*/
public function upgraderProcessComplete(
/** @noinspection PhpUnusedParameterInspection */
$upgrader, $upgradeInfo
) {
//Cancel all further actions if the current version of PUC has been deleted or overwritten
//by a different version during the upgrade. If we try to do anything more in that situation,
//we could trigger a fatal error by trying to autoload a deleted class.
clearstatcache();
if ( !file_exists(__FILE__) ) {
$this->removeHooks();
$this->updateChecker->removeHooks();
return;
}
//Sanity check and limitation to relevant types.
if (
!is_array($upgradeInfo) || !isset($upgradeInfo['type'], $upgradeInfo['action'])
|| 'update' !== $upgradeInfo['action'] || !in_array($upgradeInfo['type'], array('plugin', 'theme'))
) {
return;
}
//Filter out notifications of upgrades that should have no bearing upon whether or not our
//current info is up-to-date.
if ( is_a($this->updateChecker, 'Puc_v4p9_Theme_UpdateChecker') ) {
if ( 'theme' !== $upgradeInfo['type'] || !isset($upgradeInfo['themes']) ) {
return;
}
//Letting too many things going through for checks is not a real problem, so we compare widely.
if ( !in_array(
strtolower($this->updateChecker->directoryName),
array_map('strtolower', $upgradeInfo['themes'])
) ) {
return;
}
}
if ( is_a($this->updateChecker, 'Puc_v4p9_Plugin_UpdateChecker') ) {
if ( 'plugin' !== $upgradeInfo['type'] || !isset($upgradeInfo['plugins']) ) {
return;
}
//Themes pass in directory names in the information array, but plugins use the relative plugin path.
if ( !in_array(
strtolower($this->updateChecker->directoryName),
array_map('dirname', array_map('strtolower', $upgradeInfo['plugins']))
) ) {
return;
}
}
$this->maybeCheckForUpdates();
}
/**
* Check for updates if the configured check interval has already elapsed.
* Will use a shorter check interval on certain admin pages like "Dashboard -> Updates" or when doing cron.
*
* You can override the default behaviour by using the "puc_check_now-$slug" filter.
* The filter callback will be passed three parameters:
* - Current decision. TRUE = check updates now, FALSE = don't check now.
* - Last check time as a Unix timestamp.
* - Configured check period in hours.
* Return TRUE to check for updates immediately, or FALSE to cancel.
*
* This method is declared public because it's a hook callback. Calling it directly is not recommended.
*/
public function maybeCheckForUpdates() {
if ( empty($this->checkPeriod) ){
return;
}
$state = $this->updateChecker->getUpdateState();
$shouldCheck = ($state->timeSinceLastCheck() >= $this->getEffectiveCheckPeriod());
//Let plugin authors substitute their own algorithm.
$shouldCheck = apply_filters(
$this->updateChecker->getUniqueName('check_now'),
$shouldCheck,
$state->getLastCheck(),
$this->checkPeriod
);
if ( $shouldCheck ) {
$this->updateChecker->checkForUpdates();
}
}
/**
* Calculate the actual check period based on the current status and environment.
*
* @return int Check period in seconds.
*/
protected function getEffectiveCheckPeriod() {
$currentFilter = current_filter();
if ( in_array($currentFilter, array('load-update-core.php', 'upgrader_process_complete')) ) {
//Check more often when the user visits "Dashboard -> Updates" or does a bulk update.
$period = 60;
} else if ( in_array($currentFilter, $this->hourlyCheckHooks) ) {
//Also check more often on /wp-admin/update.php and the "Plugins" or "Themes" page.
$period = 3600;
} else if ( $this->throttleRedundantChecks && ($this->updateChecker->getUpdate() !== null) ) {
//Check less frequently if it's already known that an update is available.
$period = $this->throttledCheckPeriod * 3600;
} else if ( defined('DOING_CRON') && constant('DOING_CRON') ) {
//WordPress cron schedules are not exact, so lets do an update check even
//if slightly less than $checkPeriod hours have elapsed since the last check.
$cronFuzziness = 20 * 60;
$period = $this->checkPeriod * 3600 - $cronFuzziness;
} else {
$period = $this->checkPeriod * 3600;
}
return $period;
}
/**
* Add our custom schedule to the array of Cron schedules used by WP.
*
* @param array $schedules
* @return array
*/
public function _addCustomSchedule($schedules) {
if ( $this->checkPeriod && ($this->checkPeriod > 0) ){
$scheduleName = 'every' . $this->checkPeriod . 'hours';
$schedules[$scheduleName] = array(
'interval' => $this->checkPeriod * 3600,
'display' => sprintf('Every %d hours', $this->checkPeriod),
);
}
return $schedules;
}
/**
* Remove the scheduled cron event that the library uses to check for updates.
*
* @return void
*/
public function removeUpdaterCron() {
wp_clear_scheduled_hook($this->cronHook);
}
/**
* Get the name of the update checker's WP-cron hook. Mostly useful for debugging.
*
* @return string
*/
public function getCronHookName() {
return $this->cronHook;
}
/**
* Remove most hooks added by the scheduler.
*/
public function removeHooks() {
remove_filter('cron_schedules', array($this, '_addCustomSchedule'));
remove_action('admin_init', array($this, 'maybeCheckForUpdates'));
remove_action('load-update-core.php', array($this, 'maybeCheckForUpdates'));
if ( $this->cronHook !== null ) {
remove_action($this->cronHook, array($this, 'maybeCheckForUpdates'));
}
if ( !empty($this->hourlyCheckHooks) ) {
foreach ($this->hourlyCheckHooks as $hook) {
remove_action($hook, array($this, 'maybeCheckForUpdates'));
}
}
}
}
endif;