FM / includes

/home/techb158/balacoffee.com/wp-content/plugins/updraftplus/includes/

/home/techb158/balacoffee.com/wp-content/plugins/updraftplus/includes

Name	Size	Mode	Actions
Backblaze/	-	0755	rm
blockui/	-	0755	rm
checkout-embed/	-	0755	rm
cloudfiles/	-	0755	rm
Dropbox2/	-	0755	rm
Google/	-	0755	rm
handlebars/	-	0755	rm
images/	-	0755	rm
jquery-ui.dialog.extended/	-	0755	rm
jquery.serializeJSON/	-	0755	rm
jstree/	-	0755	rm
labelauty/	-	0755	rm
onedrive/	-	0755	rm
pcloud/	-	0755	rm
PEAR/	-	0755	rm
select2/	-	0755	rm
tether/	-	0755	rm
tether-shepherd/	-	0755	rm
updraftclone/	-	0755	rm
WindowsAzure/	-	0755	rm
azure-extensions.php	3317	0644	edit dl rm
cacert.pem	208065	0644	edit dl rm
class-backup-history.php	40355	0644	edit dl rm
class-commands.php	48803	0644	edit dl rm
class-database-utility.php	34321	0644	edit dl rm
class-filesystem-functions.php	36227	0644	edit dl rm
class-http-error-descriptions.php	10239	0644	edit dl rm
class-job-scheduler.php	10552	0644	edit dl rm
class-manipulation-functions.php	17136	0644	edit dl rm
class-onedrive-account.php	1590	0644	edit dl rm
class-partialfileservlet.php	7082	0644	edit dl rm
class-remote-send.php	30664	0644	edit dl rm
class-search-replace.php	20685	0644	edit dl rm
class-semaphore.php	6424	0644	edit dl rm
class-storage-methods-interface.php	18612	0644	edit dl rm
class-updraft-dashboard-news.php	8137	0644	edit dl rm
class-updraft-semaphore.php	7693	0644	edit dl rm
class-updraftcentral-updraftplus-commands.php	1857	0644	edit dl rm
class-updraftplus-encryption.php	13887	0644	edit dl rm
class-wpadmin-commands.php	36646	0644	edit dl rm
class-zip.php	18301	0644	edit dl rm
ftp.class.php	6658	0644	edit dl rm
get-cpanel-quota-usage.pl	408	0644	edit dl rm
google-extensions.php	9373	0644	edit dl rm
jquery-ui.custom-v1.11.4-2-23-4.min.css	38751	0644	edit dl rm
jquery-ui.custom-v1.11.4-2-23-4.min.css.map	58374	0644	edit dl rm
jquery-ui.custom-v1.11.4.css	43193	0644	edit dl rm
jquery-ui.custom-v1.12.1-2-23-4.min.css	40497	0644	edit dl rm
jquery-ui.custom-v1.12.1-2-23-4.min.css.map	60839	0644	edit dl rm
jquery-ui.custom-v1.12.1.css	45090	0644	edit dl rm
S3.php	78552	0644	edit dl rm
S3compat.php	31971	0644	edit dl rm
updraft-admin-common-2-23-4.min.js	152115	0644	edit dl rm
updraft-admin-common.js	251209	0644	edit dl rm
updraft-restorer-skin-compatibility.php	452	0644	edit dl rm
updraft-restorer-skin.php	1723	0644	edit dl rm
updraftcentral.php	2759	0644	edit dl rm
updraftplus-clone.php	7136	0644	edit dl rm
updraftplus-login.php	4368	0644	edit dl rm
updraftplus-notices.php	21428	0644	edit dl rm
updraftplus-tour.php	13295	0644	edit dl rm
updraftvault.php	2040	0644	edit dl rm

Edit: /home/techb158/balacoffee.com/wp-content/plugins/updraftplus/includes/class-updraft-semaphore.php (7693B)

<?php

if (!defined('ABSPATH')) die('No direct access.');

/**
 * Class Updraft_Semaphore_3_0
 *
 * This class is much simpler to use than the the previous series, as it has dropped support for complicated cases that were not being used. It also now only uses a single row in the options database, and takes care of creating it itself internally.
 *
 * Logging, though, may be noisier, unless your loggers are taking note of the log level and only registering what is required.
 *
 * Example of use (a lock that will expire if not released within 300 seconds)
 * 
 * See test.php for a longer example (including logging).
 *
 * $my_lock = new Updraft_Semaphore_3_0('my_lock_name', 300);
 * // If getting the lock does not succeed first time, try again up to twice
 * if ($my_lock->lock(2)) {
 *   try {
 *     // do stuff ...
 *   } catch (Exception $e) {
 *     // We are making sure we release the lock in case of an error
 *   } catch (Error $e) {
 *     // We are making sure we release the lock in case of an error
 *   }
 *   $my_lock->release();
 * } else {
 *   error_log("Sorry, could not get the lock");
 * }
 */
class Updraft_Semaphore_3_0 {

// Time after which the lock will expire (in seconds)
	protected $locked_for;
	
	// Name for the lock in the WP options table
	protected $option_name;
	
	// Lock status - a boolean
	protected $acquired = false;
	
	// An array of loggers
	protected $loggers = array();

/**
	 * Constructor. Instantiating does not lock anything, but sets up the details for future operations.
	 *
	 * @param String  $name		  - a unique (across the WP site) name for the lock. Should be no more than 51 characters in length (because of the use of the WP options table, with some further characters used internally)
	 * @param Integer $locked_for - time (in seconds) after which the lock will expire if not released. This needs to be positive if you don't want bad things to happen.
	 * @param Array	  $loggers	  - an array of loggers
	 */
	public function __construct($name, $locked_for = 300, $loggers = array()) {
		$this->option_name = 'updraft_lock_'.$name;
		$this->locked_for = $locked_for;
		$this->loggers = $loggers;
	}

/**
	 * Internal function to make sure that the lock is set up in the database
	 *
	 * @return Integer - 0 means 'failed' (which could include that someone else concurrently created it); 1 means 'already existed'; 2 means 'exists, because we created it). The intention is that non-zero results mean that the lock exists.
	 */
	private function ensure_database_initialised() {
	
		global $wpdb;
		
		$sql = $wpdb->prepare("SELECT COUNT(*) FROM {$wpdb->options} WHERE option_name = %s", $this->option_name);
		
		if (1 === (int) $wpdb->get_var($sql)) {
			$this->log('Lock option ('.$this->option_name.', '.$wpdb->options.') already existed in the database', 'debug');
			return 1;
		}
		
		$sql = $wpdb->prepare("INSERT INTO {$wpdb->options} (option_name, option_value, autoload) VALUES(%s, '0', 'no');", $this->option_name);
		
		$rows_affected = $wpdb->query($sql);
		
		if ($rows_affected > 0) {
			$this->log('Lock option ('.$this->option_name.', '.$wpdb->options.') was created in the database', 'debug');
		} else {
			$this->log('Lock option ('.$this->option_name.', '.$wpdb->options.') failed to be created in the database (could already exist)', 'notice');
		}
		
		return ($rows_affected > 0) ? 2 : 0;
	}

/**
	 * Attempt to acquire the lock. If it was already acquired, then nothing extra will be done (the method will be a no-op).
	 *
	 * @param Integer $retries - how many times to retry (after a 1 second sleep each time)
	 *
	 * @return Boolean - whether the lock was successfully acquired or not
	 */
	public function lock($retries = 0) {
	
		if ($this->acquired) return true;
		
		global $wpdb;
		
		$time_now = time();
		$acquire_until = $time_now + $this->locked_for;
		
		$sql = $wpdb->prepare("UPDATE {$wpdb->options} SET option_value = %s WHERE option_name = %s AND option_value < %d", $acquire_until, $this->option_name, $time_now);
		
		if (1 === $wpdb->query($sql)) {
			$this->log('Lock ('.$this->option_name.', '.$wpdb->options.') acquired', 'info');
			$this->acquired = true;
			return true;
		}
		
		// See if the failure was caused by the row not existing (we check this only after failure, because it should only occur once on the site)
		if (!$this->ensure_database_initialised()) return false;
		
		do {
			// Now that the row has been created, try again
			if (1 === $wpdb->query($sql)) {
				$this->log('Lock ('.$this->option_name.', '.$wpdb->options.') acquired after initialising the database', 'info');
				$this->acquired = true;
				return true;
			}
			$retries--;
			if ($retries >=0) {
				$this->log('Lock ('.$this->option_name.', '.$wpdb->options.') not yet acquired; sleeping', 'debug');
				sleep(1);
				// As a second has passed, update the time we are aiming for
				$time_now = time();
				$acquire_until = $time_now + $this->locked_for;
				$sql = $wpdb->prepare("UPDATE {$wpdb->options} SET option_value = %s WHERE option_name = %s AND option_value < %d", $acquire_until, $this->option_name, $time_now);
			}
		} while ($retries >= 0);
		
		$this->log('Lock ('.$this->option_name.', '.$wpdb->options.') could not be acquired (it is locked)', 'info');
		
		return false;
	}

/**
	 * Release the lock
	 *
	 * N.B. We don't attempt to unlock it unless we locked it. i.e. Lost locks are left to expire rather than being forced. (If we want to force them, we'll need to introduce a new parameter).
	 *
	 * @return Boolean - if it returns false, then the lock was apparently not locked by us (and the caller will most likely therefore ignore the result, whatever it is). 
	 */
	public function release() {
		if (!$this->acquired) return false;
		global $wpdb;
		$sql = $wpdb->prepare("UPDATE {$wpdb->options} SET option_value = '0' WHERE option_name = %s", $this->option_name);
		
		$this->log('Lock option ('.$this->option_name.', '.$wpdb->options.') released', 'info');
		
		$result = (int) $wpdb->query($sql) === 1;
		
		$this->acquired = false;
		
		return $result;
	}
	
	/**
	 * Cleans up the DB of any residual data. This should not be used as part of ordinary unlocking; only as part of deinstalling, or if you otherwise know that the lock will not be used again. If calling this, it's redundant to first unlock (and a no-op to attempt to do so afterwards).
	 */
	public function delete() {
		$this->acquired = false;
	
		global $wpdb;
		$wpdb->query($wpdb->prepare("DELETE FROM {$wpdb->options} WHERE option_name = %s", $this->option_name));

$this->log('Lock option ('.$this->option_name.', '.$wpdb->options.') was deleted from the database');
	}
	
	/**
	 * Captures and logs any given messages
	 *
	 * @param String $message - the error message
	 * @param String $level	  - the message level (debug, notice, info, warning, error)
	 */
	public function log($message, $level = 'info') {
		if (isset($this->loggers)) {
			foreach ($this->loggers as $logger) {
				$logger->log($message, $level);
			}
		}
	}
	
	/**
	 * Sets the list of loggers for this instance (removing any others).
	 *
	 * @param Array $loggers - the loggers for this task
	 */
	public function set_loggers($loggers) {
		$this->loggers = array();
		foreach ($loggers as $logger) {
			$this->add_logger($logger);
		}
	}

/**
	 * Add a logger to loggers list
	 *
	 * @param Callable $logger - a logger (a method with a callable function 'log', taking string parameters $level $message)
	 */
	public function add_logger($logger) {
		$this->loggers[] = $logger;
	}

/**
	 * Return the current list of loggers
	 *
	 * @return Array
	 */
	public function get_loggers() {
		return $this->loggers;
	}
}

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