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<?php
/**
* Bitrix Framework
* @package bitrix
* @subpackage main
* @copyright 2001-2021 Bitrix
*/
namespace Bitrix\Main\Diag;
use Bitrix\Main\Type;
use Bitrix\Main\DB;
class LogFormatter implements LogFormatterInterface
{
protected const DELIMITER = '----------';
protected $showArguments;
protected $argMaxChars;
public function __construct($showArguments = false, $argMaxChars = 30)
{
$this->showArguments = $showArguments;
$this->argMaxChars = $argMaxChars;
}
/**
* Basic formatter to a string. Supports placeholders: {exception}, {trace}, {date}, {delimiter}.
* @inheritDoc
*/
public function format($message, array $context = []): string
{
// Implementors MAY have special handling for the passed objects. If that is not the case, implementors MUST cast it to a string.
$message = $this->castToString($message);
if (!isset($context['delimiter']))
{
$context['delimiter'] = static::DELIMITER;
}
// Placeholder names MUST be delimited with a single opening brace { and a single closing brace }. There MUST NOT be any whitespace between the delimiters and the placeholder name.
$replace = [];
foreach ($context as $key => $val)
{
$replace['{' . $key . '}'] = $this->castToString($val, $key);
}
return strtr($message, $replace);
}
/**
* Magic is here.
* @param mixed $value
* @param null $placeholder
* @return string
*/
protected function castToString($value, $placeholder = null): string
{
if (!is_string($value))
{
if (is_object($value))
{
if ($placeholder == 'date' && $value instanceof Type\Date)
{
$value = $this->formatDate($value);
}
elseif ($placeholder == 'exception' && $value instanceof \Throwable)
{
$value = $this->formatException($value);
}
elseif (method_exists($value, '__toString'))
{
$value = (string)$value;
}
else
{
$value = $this->formatMixed($value);
}
}
else
{
if ($placeholder == 'trace' && is_array($value))
{
$value = $this->formatTrace($value);
}
else
{
$value = $this->formatMixed($value);
}
}
}
return $value;
}
/**
* Formats an exception.
* @param \Throwable $exception
* @return string
*/
protected function formatException(\Throwable $exception): string
{
$result = '[' . get_class($exception) . '] ';
if ($exception instanceof \ErrorException)
{
$result .= static::severityToString($exception->getSeverity());
}
$result .= "\n" . $exception->getMessage() . ' (' . $exception->getCode() . ')' . "\n";
if ($exception instanceof DB\SqlQueryException)
{
$result .= $exception->getQuery() . "\n";
}
$file = $exception->getFile();
if ($file)
{
$result .= $file . ':' . $exception->getLine() . "\n";
}
return $result;
}
/**
* Formats a backtrace array.
* @param array $trace
* @return string
*/
protected function formatTrace(array $trace): string
{
$result = '';
foreach ($trace as $traceNum => $traceInfo)
{
$traceLine = '#'.$traceNum.': ';
if (isset($traceInfo['class']))
{
$traceLine .= $traceInfo['class'] . $traceInfo['type'];
}
if (isset($traceInfo['function']))
{
$traceLine .= $traceInfo['function'];
if(isset($traceInfo['args']))
{
$traceLine .= $this->formatArguments($traceInfo['args']);
}
}
$traceLine .= "\n\t";
if (isset($traceInfo['file']))
{
$traceLine .= $traceInfo['file'] . ':' . $traceInfo['line'];
}
$result .= $traceLine . "\n";
}
return $result;
}
/**
* @internal
* @param $args
* @return string
*/
public function formatArguments($args)
{
if ($args !== null)
{
$arguments = [];
foreach ($args as $arg)
{
$arguments[] = $this->formatArgument($arg);
}
return '(' . implode(', ', $arguments) . ')';
}
return '()';
}
/**
* @internal
* @param $arg
* @return array|string|string[]
*/
public function formatArgument($arg)
{
if (!$this->showArguments)
{
return gettype($arg);
}
switch (gettype($arg))
{
case 'boolean':
$result = $arg ? 'true' : 'false';
break;
case 'NULL':
$result = 'null';
break;
case 'integer':
case 'double':
case 'float':
$result = (string)$arg;
break;
case 'string':
if (is_callable($arg, false, $callableName))
{
$result = 'fs:' . $callableName;
}
elseif (class_exists($arg, false))
{
$result = 'c:' . $arg;
}
elseif (interface_exists($arg, false))
{
$result = 'i:' . $arg;
}
else
{
if (mb_strlen($arg) > $this->argMaxChars)
{
$result = '"' . mb_substr($arg, 0, $this->argMaxChars / 2) . '...' . mb_substr($arg, -$this->argMaxChars / 2) . '" (' . mb_strlen($arg) . ')';
}
else
{
$result = '"' . $arg . '"';
}
}
break;
case 'array':
if (is_callable($arg, false, $callableName))
{
$result = 'fa:' . $callableName;
}
else
{
$result = 'array(' . count($arg) . ')';
}
break;
case 'object':
$result = '[' . get_class($arg) . ']';
break;
case 'resource':
$result = 'r:' . get_resource_type($arg);
break;
default:
$result = 'unknown type';
break;
}
return str_replace("\n", '\n', $result);
}
/**
* Formats a date.
* @param Type\DateTime $dateTime
* @return string
*/
protected function formatDate(Type\Date $dateTime): string
{
return $dateTime->format('Y-m-d H:i:s');
}
/**
* Formats a mixed value.
* @param mixed $value
* @return string
*/
protected function formatMixed($value): string
{
return var_export($value, true);
}
public static function severityToString($severity)
{
switch ($severity)
{
case 1:
return 'E_ERROR';
case 2:
return 'E_WARNING';
case 4:
return 'E_PARSE';
case 8:
return 'E_NOTICE';
case 16:
return 'E_CORE_ERROR';
case 32:
return 'E_CORE_WARNING';
case 64:
return 'E_COMPILE_ERROR';
case 128:
return 'E_COMPILE_WARNING';
case 256:
return 'E_USER_ERROR';
case 512:
return 'E_USER_WARNING';
case 1024:
return 'E_USER_NOTICE';
case 2048:
return 'E_STRICT';
case 4096:
return 'E_RECOVERABLE_ERROR';
case 8192:
return 'E_DEPRECATED';
case 16384:
return 'E_USER_DEPRECATED';
case 30719:
return 'E_ALL';
default:
return 'UNKNOWN';
}
}
}