File: /var/www/html/wp-content/plugins/matomo/classes/WpMatomo/Logger.php
<?php
/**
* Matomo - free/libre analytics platform
*
* @link https://matomo.org
* @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
* @package matomo
*/
namespace WpMatomo;
use Exception;
if ( ! defined( 'ABSPATH' ) ) {
exit; // if accessed directly
}
class Logger {
const LEVEL_NONE = 99;
const LEVEL_DEBUG = 1;
const LEVEL_INFO = 3;
const LEVEL_WARN = 5;
private $log_level;
public function __construct() {
$this->log_level = $this->detect_log_level();
}
private function detect_log_level() {
if ( defined( 'MATOMO_DEBUG' ) ) {
if ( MATOMO_DEBUG ) {
return self::LEVEL_DEBUG;
}
return self::LEVEL_NONE;
}
if ( defined( 'PIWIK_TEST_MODE' ) && PIWIK_TEST_MODE ) {
return self::LEVEL_WARN;
}
return self::LEVEL_INFO;
}
public function log( $message, $mode = 3 ) {
if ( $this->log_level > $mode ) {
return;
}
if ( defined( 'WP_DEBUG' ) && WP_DEBUG === true ) {
if ( is_array( $message ) || is_object( $message ) ) {
error_log( 'Matomo: ' . print_r( $message, true ) );
} else {
error_log( 'Matomo: ' . $message );
}
}
}
public function clear_logged_exceptions() {
delete_option( $this->make_id() );
}
private function persist( $key, $message ) {
$id = $this->make_id();
$logs = $this->get_last_logged_entries();
$logs[] = [
'name' => $key,
'value' => time(),
'comment' => $message,
];
$logs = array_slice( $logs, - 6 );
update_option( $id, $logs );
}
private function make_id() {
return Settings::OPTION_PREFIX . 'errorlogs';
}
public function get_last_logged_entries() {
$id = $this->make_id();
$logs = get_option( $id );
if ( empty( $logs ) ) {
$logs = [];
}
// remove any entry older than 1 week
$logs = array_filter(
$logs,
function ( $log ) {
$one_week_seconds = 604800;
return ! empty( $log['value'] ) && is_numeric( $log['value'] ) && ( time() - $log['value'] ) <= $one_week_seconds;
}
);
return $logs;
}
public function get_readable_trace( Exception $e ) {
$trace = '';
if ( $e->getFile() ) {
$trace = basename( $e->getFile() ) . ':' . $e->getLine() . '; ';
}
foreach ( $e->getTrace() as $index => $item ) {
if ( ! empty( $item['file'] ) ) {
$trace .= basename( $item['file'] ) . ':' . $item['line'] . '; ';
}
if ( $index > 8 ) {
continue;
}
}
return trim( $trace );
}
public function log_exception( $key, Exception $e, $prefix = 'Matomo error:' ) {
$trace = $this->get_readable_trace( $e );
$message = $e->getMessage() . ' => ' . $trace;
$this->log( $prefix . ' ' . $message );
$this->persist( $key, $message );
}
}