/usr/share/php/Monolog/Handler/StreamHandler.php is in php-monolog 1.11.0-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/*
* 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 Monolog\Handler;
use Monolog\Logger;
/**
* Stores to any stream resource
*
* Can be used to store into php://stderr, remote and local files, etc.
*
* @author Jordi Boggiano <j.boggiano@seld.be>
*/
class StreamHandler extends AbstractProcessingHandler
{
protected $stream;
protected $url;
private $errorMessage;
protected $filePermission;
protected $useLocking;
/**
* @param resource|string $stream
* @param integer $level The minimum logging level at which this handler will be triggered
* @param Boolean $bubble Whether the messages that are handled can bubble up the stack or not
* @param int|null $filePermission Optional file permissions (default (0644) are only for owner read/write)
* @param Boolean $useLocking Try to lock log file before doing any writes
*
* @throws InvalidArgumentException If stream is not a resource or string
*/
public function __construct($stream, $level = Logger::DEBUG, $bubble = true, $filePermission = null, $useLocking = false)
{
parent::__construct($level, $bubble);
if (is_resource($stream)) {
$this->stream = $stream;
} elseif (is_string($stream)) {
$this->url = $stream;
} else {
throw new \InvalidArgumentException('A stream must either be a resource or a string.');
}
$this->filePermission = $filePermission;
$this->useLocking = $useLocking;
}
/**
* {@inheritdoc}
*/
public function close()
{
if (is_resource($this->stream)) {
fclose($this->stream);
}
$this->stream = null;
}
/**
* {@inheritdoc}
*/
protected function write(array $record)
{
if (!is_resource($this->stream)) {
if (!$this->url) {
throw new \LogicException('Missing stream url, the stream can not be opened. This may be caused by a premature call to close().');
}
$this->errorMessage = null;
set_error_handler(array($this, 'customErrorHandler'));
$this->stream = fopen($this->url, 'a');
if ($this->filePermission !== null) {
@chmod($this->url, $this->filePermission);
}
restore_error_handler();
if (!is_resource($this->stream)) {
$this->stream = null;
throw new \UnexpectedValueException(sprintf('The stream or file "%s" could not be opened: '.$this->errorMessage, $this->url));
}
}
if ($this->useLocking) {
// ignoring errors here, there's not much we can do about them
flock($this->stream, LOCK_EX);
}
fwrite($this->stream, (string) $record['formatted']);
if ($this->useLocking) {
flock($this->stream, LOCK_UN);
}
}
private function customErrorHandler($code, $msg)
{
$this->errorMessage = preg_replace('{^fopen\(.*?\): }', '', $msg);
}
}
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