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all-in-one-seo-pack/vendor_prefixed/monolog/monolog/src/Monolog/Handler/DeduplicationHandler.php 0000644 00000012623 15115624464 0036436 0 ustar 00 home/xbodynamge/dev/wp-content/plugins <?php
/*
* This file is part of the Monolog package.
*
* (c) Jordi Boggiano <j.boggiano@seld.be>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace AIOSEO\Vendor\Monolog\Handler;
use AIOSEO\Vendor\Monolog\Logger;
/**
* Simple handler wrapper that deduplicates log records across multiple requests
*
* It also includes the BufferHandler functionality and will buffer
* all messages until the end of the request or flush() is called.
*
* This works by storing all log records' messages above $deduplicationLevel
* to the file specified by $deduplicationStore. When further logs come in at the end of the
* request (or when flush() is called), all those above $deduplicationLevel are checked
* against the existing stored logs. If they match and the timestamps in the stored log is
* not older than $time seconds, the new log record is discarded. If no log record is new, the
* whole data set is discarded.
*
* This is mainly useful in combination with Mail handlers or things like Slack or HipChat handlers
* that send messages to people, to avoid spamming with the same message over and over in case of
* a major component failure like a database server being down which makes all requests fail in the
* same way.
*
* @author Jordi Boggiano <j.boggiano@seld.be>
*/
class DeduplicationHandler extends BufferHandler
{
/**
* @var string
*/
protected $deduplicationStore;
/**
* @var int
*/
protected $deduplicationLevel;
/**
* @var int
*/
protected $time;
/**
* @var bool
*/
private $gc = \false;
/**
* @param HandlerInterface $handler Handler.
* @param string $deduplicationStore The file/path where the deduplication log should be kept
* @param int $deduplicationLevel The minimum logging level for log records to be looked at for deduplication purposes
* @param int $time The period (in seconds) during which duplicate entries should be suppressed after a given log is sent through
* @param bool $bubble Whether the messages that are handled can bubble up the stack or not
*/
public function __construct(HandlerInterface $handler, $deduplicationStore = null, $deduplicationLevel = Logger::ERROR, $time = 60, $bubble = \true)
{
parent::__construct($handler, 0, Logger::DEBUG, $bubble, \false);
$this->deduplicationStore = $deduplicationStore === null ? \sys_get_temp_dir() . '/monolog-dedup-' . \substr(\md5(__FILE__), 0, 20) . '.log' : $deduplicationStore;
$this->deduplicationLevel = Logger::toMonologLevel($deduplicationLevel);
$this->time = $time;
}
public function flush()
{
if ($this->bufferSize === 0) {
return;
}
$passthru = null;
foreach ($this->buffer as $record) {
if ($record['level'] >= $this->deduplicationLevel) {
$passthru = $passthru || !$this->isDuplicate($record);
if ($passthru) {
$this->appendRecord($record);
}
}
}
// default of null is valid as well as if no record matches duplicationLevel we just pass through
if ($passthru === \true || $passthru === null) {
$this->handler->handleBatch($this->buffer);
}
$this->clear();
if ($this->gc) {
$this->collectLogs();
}
}
private function isDuplicate(array $record)
{
if (!\file_exists($this->deduplicationStore)) {
return \false;
}
$store = \file($this->deduplicationStore, \FILE_IGNORE_NEW_LINES | \FILE_SKIP_EMPTY_LINES);
if (!\is_array($store)) {
return \false;
}
$yesterday = \time() - 86400;
$timestampValidity = $record['datetime']->getTimestamp() - $this->time;
$expectedMessage = \preg_replace('{[\\r\\n].*}', '', $record['message']);
for ($i = \count($store) - 1; $i >= 0; $i--) {
list($timestamp, $level, $message) = \explode(':', $store[$i], 3);
if ($level === $record['level_name'] && $message === $expectedMessage && $timestamp > $timestampValidity) {
return \true;
}
if ($timestamp < $yesterday) {
$this->gc = \true;
}
}
return \false;
}
private function collectLogs()
{
if (!\file_exists($this->deduplicationStore)) {
return \false;
}
$handle = \fopen($this->deduplicationStore, 'rw+');
\flock($handle, \LOCK_EX);
$validLogs = array();
$timestampValidity = \time() - $this->time;
while (!\feof($handle)) {
$log = \fgets($handle);
if (\substr($log, 0, 10) >= $timestampValidity) {
$validLogs[] = $log;
}
}
\ftruncate($handle, 0);
\rewind($handle);
foreach ($validLogs as $log) {
\fwrite($handle, $log);
}
\flock($handle, \LOCK_UN);
\fclose($handle);
$this->gc = \false;
}
private function appendRecord(array $record)
{
\file_put_contents($this->deduplicationStore, $record['datetime']->getTimestamp() . ':' . $record['level_name'] . ':' . \preg_replace('{[\\r\\n].*}', '', $record['message']) . "\n", \FILE_APPEND);
}
}