/
NormalizerFormatter.php
193 lines (162 loc) · 5.51 KB
/
NormalizerFormatter.php
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<?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 Monolog\Formatter;
use Exception;
/**
* Normalizes incoming records to remove objects/resources so it's easier to dump to various targets
*
* @author Jordi Boggiano <j.boggiano@seld.be>
*/
class NormalizerFormatter implements FormatterInterface
{
const SIMPLE_DATE = "Y-m-d H:i:s";
protected $dateFormat;
/**
* @param string $dateFormat The format of the timestamp: one supported by DateTime::format
*/
public function __construct($dateFormat = null)
{
$this->dateFormat = $dateFormat ?: static::SIMPLE_DATE;
if (!function_exists('json_encode')) {
throw new \RuntimeException('PHP\'s json extension is required to use Monolog\'s NormalizerFormatter');
}
}
/**
* {@inheritdoc}
*/
public function format(array $record)
{
return $this->normalize($record);
}
/**
* {@inheritdoc}
*/
public function formatBatch(array $records)
{
foreach ($records as $key => $record) {
$records[$key] = $this->format($record);
}
return $records;
}
protected function normalize($data)
{
if (null === $data || is_scalar($data)) {
if (is_float($data)) {
if (is_infinite($data)) {
return ($data > 0 ? '' : '-') . 'INF';
}
if (is_nan($data)) {
return 'NaN';
}
}
return $data;
}
if (is_array($data) || $data instanceof \Traversable) {
$normalized = array();
$count = 1;
foreach ($data as $key => $value) {
if ($count++ >= 1000) {
$normalized['...'] = 'Over 1000 items, aborting normalization';
break;
}
$normalized[$key] = $this->normalize($value);
}
return $normalized;
}
if ($data instanceof \DateTime) {
return $data->format($this->dateFormat);
}
if (is_object($data)) {
if ($data instanceof Exception) {
return $this->normalizeException($data);
}
// non-serializable objects that implement __toString stringified
if (method_exists($data, '__toString') && !$data instanceof \JsonSerializable) {
$value = (string) $data;
} else {
// the rest is json-serialized in some way
$value = $this->toJson($data, true);
}
return sprintf("[object] (%s: %s)", get_class($data), $value);
}
if (is_resource($data)) {
return '[resource]';
}
return '[unknown('.gettype($data).')]';
}
protected function normalizeException(Exception $e)
{
$data = array(
'class' => get_class($e),
'message' => $e->getMessage(),
'code' => $e->getCode(),
'file' => $e->getFile().':'.$e->getLine(),
);
$trace = $e->getTrace();
foreach ($trace as $frame) {
if (isset($frame['file'])) {
$data['trace'][] = $frame['file'].':'.$frame['line'];
} else {
// We should again normalize the frames, because it might contain invalid items
$data['trace'][] = $this->toJson($this->normalize($frame), true);
}
}
if ($previous = $e->getPrevious()) {
$data['previous'] = $this->normalizeException($previous);
}
return $data;
}
protected function toJson($data, $ignoreErrors = false)
{
// suppress json_encode errors since it's twitchy with some inputs
if ($ignoreErrors) {
if (version_compare(PHP_VERSION, '5.4.0', '>=')) {
return @json_encode($data, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE);
}
return @json_encode($data);
}
if (version_compare(PHP_VERSION, '5.4.0', '>=')) {
$json = json_encode($data, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE);
} else {
$json = json_encode($data);
}
if ($json === false) {
$this->throwEncodeError(json_last_error(), $data);
}
return $json;
}
/**
* Throws an exception according to a given code with a customized message
*
* @param int $code return code of json_last_error function
* @param mixed $data data that was meant to be encoded
* @throws \RuntimeException
*/
private function throwEncodeError($code, $data)
{
switch ($code) {
case JSON_ERROR_DEPTH:
$msg = 'Maximum stack depth exceeded';
break;
case JSON_ERROR_STATE_MISMATCH:
$msg = 'Underflow or the modes mismatch';
break;
case JSON_ERROR_CTRL_CHAR:
$msg = 'Unexpected control character found';
break;
case JSON_ERROR_UTF8:
$msg = 'Malformed UTF-8 characters, possibly incorrectly encoded';
break;
default:
$msg = 'Unknown error';
}
throw new \RuntimeException('JSON encoding failed: '.$msg.'. Encoding: '.var_export($data, true));
}
}