/home/s/h/a/shalekuihb/www/wp-content/plugins/insta-gallery/lib/services/class-cache.php
<?php
namespace QuadLayers\IGG\Services;
/**
* QuadLayers Cache
* Version: 1.0.1
* Date: 24/11/2022
*/
/**
* Cache Class
*/
class Cache {
/**
* Disable cache test
*
* @var boolean
*/
private static $disable_cache_test = false;
/**
* Force expiration test
*
* @var boolean
*/
private static $force_expiration_test = false;
/**
* Cache class prefix
*
* @var string
*/
private static $prefix = 'qligg_cache_';
/**
* Cache mininum expiration lapse
*
* @var integer
*/
public static $min_expiration_lapse_in_hours = 6;
/**
* Cache autoexpires setting
*
* @var boolean
*/
private static $autoexpires;
/**
* User set cache expiration lapse
*
* @var int
*/
public static $expiration_lapse_in_hours;
/**
* Current time in timestamp type
*
* @var int
*/
public static $current_time_timestamp;
/**
* Cache dynamic prefix
*
* @var string
*/
public $dynamic_prefix = '';
/**
* Class constructor
*
* @param integer $expiration_lapse_in_hours User set expiration lapse in hours.
* @param boolean $autoexpires Property to define if cache autoexpire.
* @param string $add_prefix Prefix to use as dynamic prefix.
*/
public function __construct( int $expiration_lapse_in_hours, $autoexpires, $add_prefix ) {
$this->dynamic_prefix = $add_prefix;
self::$expiration_lapse_in_hours = max( self::$min_expiration_lapse_in_hours, absint( $expiration_lapse_in_hours ) );
self::$autoexpires = $autoexpires;
self::$current_time_timestamp = current_time( 'timestamp' );
}
/**
* Function to get complete cache prefix
*
* @return string
*/
public function get_prefix() {
return static::$prefix . $this->dynamic_prefix;
}
/**
* Get the expiration date
*
* @param int $cache_timestamp Timestamp to use to calculate cache expiration.
* @return int
*/
public function get_cache_expiration_timestamp( int $cache_timestamp ) {
if ( self::$force_expiration_test ) {
return 0;
}
return $cache_timestamp + self::$min_expiration_lapse_in_hours * HOUR_IN_SECONDS;
}
/**
* Return true if a date is expired, false if not
*
* @param int $cache_timestamp Timestamp to use to check if cache is expired.
* @return boolean
*/
public function is_cache_expired( int $cache_timestamp ) {
// retorna true si se vencio, false si no se vencio
/**
* Conditional to hardcode function return true
*/
if ( ! self::$disable_cache_test ) {
return self::$current_time_timestamp > $this->get_cache_expiration_timestamp( $cache_timestamp ); // Funcion
}
return true;
}
/**
* Get the url key to access to database
*
* @param string $url Url to get database url key.
* @return string
*/
public function get_db_url_key( string $url ) {
return $this->get_prefix() . '_' . md5( $url );
}
/**
* Get option from database
*
* @param string $url Url to get cached data.
* @return array
*/
public function get( $url ) {
$cache_option_key = $this->get_db_url_key( $url );
$cache = '';
if ( static::$autoexpires ) {
$cache = get_transient( $cache_option_key );
} else {
$cache = get_option( $cache_option_key, false );
}
if ( ! isset( $cache['timestamp'] ) || $this->is_cache_expired( $cache['timestamp'] ) ) {
return array();
}
return $cache;
}
/**
* Update option in database
*
* @param string $url Url to use as key.
* @param array $response Response data to be updated.
* @return void
*/
public function update( $url, $response ) {
$cache_option_key = $this->get_db_url_key( $url );
$cache = array(
'response' => $response,
'timestamp' => current_time( 'timestamp' ),
);
if ( static::$autoexpires ) {
set_transient( $cache_option_key, $cache, static::$expiration_lapse_in_hours * 3600 );
} else {
update_option( $cache_option_key, $cache );
}
}
/**
* Delete option from database
*
* @param string $url Url to use as key.
* @return void
*/
public function delete_key( $url ) {
$cache_option_key = $this->get_db_url_key( $url );
if ( static::$autoexpires ) {
delete_transient( $cache_option_key );
} else {
delete_option( $cache_option_key );
}
}
/**
* Delete all data saved from database that are related to class prefix
*
* @return void
*/
public function delete() {
global $wpdb;
$search_prefix = '%' . $this->get_prefix() . '%';
$tks = $wpdb->get_results( $wpdb->prepare( "SELECT option_name FROM $wpdb->options WHERE option_name LIKE %s", $search_prefix ) );
if ( $tks ) {
foreach ( $tks as $key => $name ) {
if ( static::$autoexpires ) {
delete_transient( str_replace( '_transient_', '', $name->option_name ) );
} else {
delete_option( $name->option_name );
}
}
}
}
}