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<?php
namespace WPForms\Tasks;
use WPForms_DB;
/**
* Class Meta helps to manage the tasks meta information
* between Action Scheduler and WPForms hooks arguments.
* We can't pass arguments longer than >191 chars in JSON to AS,
* so we need to store them somewhere (and clean from time to time).
*
* @since 1.5.9
*/
class Meta extends WPForms_DB {
/**
* Primary key (unique field) for the database table.
*
* @since 1.5.9
*
* @var string
*/
public $primary_key = 'id';
/**
* Database type identifier.
*
* @since 1.5.9
*
* @var string
*/
public $type = 'tasks_meta';
/**
* Primary class constructor.
*
* @since 1.5.9
*/
public function __construct() {
$this->table_name = self::get_table_name();
}
/**
* Get the DB table name.
*
* @since 1.5.9
*
* @return string
*/
public static function get_table_name() {
global $wpdb;
return $wpdb->prefix . 'wpforms_tasks_meta';
}
/**
* Get table columns.
*
* @since 1.5.9
*/
public function get_columns() {
return [
'id' => '%d',
'action' => '%s',
'data' => '%s',
'date' => '%s',
];
}
/**
* Default column values.
*
* @since 1.5.9
*
* @return array
*/
public function get_column_defaults() {
return [
'action' => '',
'data' => '',
'date' => gmdate( 'Y-m-d H:i:s' ),
];
}
/**
* Create custom entry meta database table.
* Used in migration and on plugin activation.
*
* @since 1.5.9
*
* @noinspection UnusedFunctionResultInspection
*/
public function create_table() {
global $wpdb;
require_once ABSPATH . 'wp-admin/includes/upgrade.php';
$charset_collate = $wpdb->get_charset_collate();
$sql = "CREATE TABLE IF NOT EXISTS $this->table_name (
id bigint(20) NOT NULL AUTO_INCREMENT,
action varchar(255) NOT NULL,
data longtext NOT NULL,
date datetime NOT NULL,
PRIMARY KEY (id)
) $charset_collate;";
dbDelta( $sql );
}
/**
* Remove queue records for a defined period of time in the past.
* Calling this method will remove queue records that are older than $period seconds.
*
* @since 1.5.9
*
* @param string $action Action that should be cleaned up.
* @param int $interval Number of seconds from now.
*
* @return int Number of removed tasks meta records.
*/
public function clean_by( $action, $interval ) {
global $wpdb;
if ( empty( $action ) || empty( $interval ) ) {
return 0;
}
$table = self::get_table_name();
$action = sanitize_key( $action );
$date = gmdate( 'Y-m-d H:i:s', time() - (int) $interval );
// phpcs:ignore WordPress.DB.DirectDatabaseQuery.NoCaching
return (int) $wpdb->query(
$wpdb->prepare(
"DELETE FROM $table WHERE action = %s AND date < %s", // phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared
$action,
$date
)
);
}
/**
* Inserts a new record into the database.
*
* @since 1.5.9
*
* @param array $data Column data.
* @param string $type Optional. Data type context.
*
* @return int ID for the newly inserted record. 0 otherwise.
*/
public function add( $data, $type = '' ) {
if ( empty( $data['action'] ) || ! is_string( $data['action'] ) ) {
return 0;
}
$data['action'] = sanitize_key( $data['action'] );
if ( isset( $data['data'] ) ) {
$data['data'] = $this->prepare_data( $data['data'] );
}
if ( empty( $type ) ) {
$type = $this->type;
}
return parent::add( $data, $type );
}
/**
* Prepare data.
*
* @since 1.7.0
*
* @param array $data Meta data.
*
* @return string
*/
private function prepare_data( $data ) {
$string = wp_json_encode( $data );
if ( $string === false ) {
$string = '';
}
/*
* We are encoding the string representation of all the data
* to make sure that nothing can harm the database.
* This is not an encryption, and we need this data later "as is",
* so we are using one of the fastest way to do that.
* This data is removed from DB on a daily basis.
*/
// phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.obfuscation_base64_encode
return base64_encode( $string );
}
/**
* Retrieve a row from the database based on a given row ID.
*
* @since 1.5.9
*
* @param int $meta_id Meta ID.
*
* @return null|object
* @noinspection PhpParameterNameChangedDuringInheritanceInspection
*/
public function get( $meta_id ) {
$meta = parent::get( $meta_id );
if ( empty( $meta ) || empty( $meta->data ) ) {
return $meta;
}
// phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.obfuscation_base64_decode
$decoded = base64_decode( $meta->data );
if ( $decoded === false || ! is_string( $decoded ) ) {
$meta->data = '';
} else {
$meta->data = json_decode( $decoded, true );
}
return $meta;
}
/**
* Get meta ID by action name and params.
*
* @since 1.7.0
*
* @param string $action Action name.
* @param array $params Action params.
*
* @return int
*/
public function get_meta_id( $action, $params ) {
global $wpdb;
$table = self::get_table_name();
$action = sanitize_key( $action );
$data = $this->prepare_data( array_values( $params ) );
return absint(
$wpdb->get_var( // phpcs:ignore WordPress.DB.DirectDatabaseQuery.NoCaching
$wpdb->prepare(
"SELECT id FROM $table WHERE action = %s AND data = %s LIMIT 1", // phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared
$action,
$data
)
)
);
}
}