<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <[email protected]>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\ErrorHandler\Exception;
use Symfony\Component\HttpFoundation\Exception\RequestExceptionInterface;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpKernel\Exception\HttpExceptionInterface;
/**
* FlattenException wraps a PHP Error or Exception to be able to serialize it.
*
* Basically, this class removes all objects from the trace.
*
* @author Fabien Potencier <[email protected]>
*/
class FlattenException
{
/** @var string */
private $message;
/** @var int|string */
private $code;
/** @var self|null */
private $previous;
/** @var array */
private $trace;
/** @var string */
private $traceAsString;
/** @var string */
private $class;
/** @var int */
private $statusCode;
/** @var string */
private $statusText;
/** @var array */
private $headers;
/** @var string */
private $file;
/** @var int */
private $line;
/** @var string|null */
private $asString;
/**
* @return static
*/
public static function create(\Exception $exception, $statusCode = null, array $headers = []): self
{
return static::createFromThrowable($exception, $statusCode, $headers);
}
/**
* @return static
*/
public static function createFromThrowable(\Throwable $exception, int $statusCode = null, array $headers = []): self
{
$e = new static();
$e->setMessage($exception->getMessage());
$e->setCode($exception->getCode());
if ($exception instanceof HttpExceptionInterface) {
$statusCode = $exception->getStatusCode();
$headers = array_merge($headers, $exception->getHeaders());
} elseif ($exception instanceof RequestExceptionInterface) {
$statusCode = 400;
}
if (null === $statusCode) {
$statusCode = 500;
}
if (class_exists(Response::class) && isset(Response::$statusTexts[$statusCode])) {
$statusText = Response::$statusTexts[$statusCode];
} else {
$statusText = 'Whoops, looks like something went wrong.';
}
$e->setStatusText($statusText);
$e->setStatusCode($statusCode);
$e->setHeaders($headers);
$e->setTraceFromThrowable($exception);
$e->setClass(get_debug_type($exception));
$e->setFile($exception->getFile());
$e->setLine($exception->getLine());
$previous = $exception->getPrevious();
if ($previous instanceof \Throwable) {
$e->setPrevious(static::createFromThrowable($previous));
}
return $e;
}
public function toArray(): array
{
$exceptions = [];
foreach (array_merge([$this], $this->getAllPrevious()) as $exception) {
$exceptions[] = [
'message' => $exception->getMessage(),
'class' => $exception->getClass(),
'trace' => $exception->getTrace(),
];
}
return $exceptions;
}
public function getStatusCode(): int
{
return $this->statusCode;
}
/**
* @param int $code
*
* @return $this
*/
public function setStatusCode($code): self
{
$this->statusCode = $code;
return $this;
}
public function getHeaders(): array
{
return $this->headers;
}
/**
* @return $this
*/
public function setHeaders(array $headers): self
{
$this->headers = $headers;
return $this;
}
public function getClass(): string
{
return $this->class;
}
/**
* @param string $class
*
* @return $this
*/
public function setClass($class): self
{
$this->class = false !== strpos($class, "@anonymous\0") ? (get_parent_class($class) ?: key(class_implements($class)) ?: 'class').'@anonymous' : $class;
return $this;
}
public function getFile(): string
{
return $this->file;
}
/**
* @param string $file
*
* @return $this
*/
public function setFile($file): self
{
$this->file = $file;
return $this;
}
public function getLine(): int
{
return $this->line;
}
/**
* @param int $line
*
* @return $this
*/
public function setLine($line): self
{
$this->line = $line;
return $this;
}
public function getStatusText(): string
{
return $this->statusText;
}
public function setStatusText(string $statusText): self
{
$this->statusText = $statusText;
return $this;
}
public function getMessage(): string
{
return $this->message;
}
/**
* @param string $message
*
* @return $this
*/
public function setMessage($message): self
{
if (false !== strpos($message, "@anonymous\0")) {
$message = preg_replace_callback('/[a-zA-Z_\x7f-\xff][\\\\a-zA-Z0-9_\x7f-\xff]*+@anonymous\x00.*?\.php(?:0x?|:[0-9]++\$)[0-9a-fA-F]++/', function ($m) {
return class_exists($m[0], false) ? (get_parent_class($m[0]) ?: key(class_implements($m[0])) ?: 'class').'@anonymous' : $m[0];
}, $message);
}
$this->message = $message;
return $this;
}
/**
* @return int|string int most of the time (might be a string with PDOException)
*/
public function getCode()
{
return $this->code;
}
/**
* @param int|string $code
*
* @return $this
*/
public function setCode($code): self
{
$this->code = $code;
return $this;
}
public function getPrevious(): ?self
{
return $this->previous;
}
/**
* @return $this
*/
public function setPrevious(self $previous): self
{
$this->previous = $previous;
return $this;
}
/**
* @return self[]
*/
public function getAllPrevious(): array
{
$exceptions = [];
$e = $this;
while ($e = $e->getPrevious()) {
$exceptions[] = $e;
}
return $exceptions;
}
public function getTrace(): array
{
return $this->trace;
}
/**
* @return $this
*/
public function setTraceFromThrowable(\Throwable $throwable): self
{
$this->traceAsString = $throwable->getTraceAsString();
return $this->setTrace($throwable->getTrace(), $throwable->getFile(), $throwable->getLine());
}
/**
* @param array $trace
* @param string|null $file
* @param int|null $line
*
* @return $this
*/
public function setTrace($trace, $file, $line): self
{
$this->trace = [];
$this->trace[] = [
'namespace' => '',
'short_class' => '',
'class' => '',
'type' => '',
'function' => '',
'file' => $file,
'line' => $line,
'args' => [],
];
foreach ($trace as $entry) {
$class = '';
$namespace = '';
if (isset($entry['class'])) {
$parts = explode('\\', $entry['class']);
$class = array_pop($parts);
$namespace = implode('\\', $parts);
}
$this->trace[] = [
'namespace' => $namespace,
'short_class' => $class,
'class' => $entry['class'] ?? '',
'type' => $entry['type'] ?? '',
'function' => $entry['function'] ?? null,
'file' => $entry['file'] ?? null,
'line' => $entry['line'] ?? null,
'args' => isset($entry['args']) ? $this->flattenArgs($entry['args']) : [],
];
}
return $this;
}
private function flattenArgs(array $args, int $level = 0, int &$count = 0): array
{
$result = [];
foreach ($args as $key => $value) {
if (++$count > 1e4) {
return ['array', '*SKIPPED over 10000 entries*'];
}
if ($value instanceof \__PHP_Incomplete_Class) {
// is_object() returns false on PHP<=7.1
$result[$key] = ['incomplete-object', $this->getClassNameFromIncomplete($value)];
} elseif (\is_object($value)) {
$result[$key] = ['object', \get_class($value)];
} elseif (\is_array($value)) {
if ($level > 10) {
$result[$key] = ['array', '*DEEP NESTED ARRAY*'];
} else {
$result[$key] = ['array', $this->flattenArgs($value, $level + 1, $count)];
}
} elseif (null === $value) {
$result[$key] = ['null', null];
} elseif (\is_bool($value)) {
$result[$key] = ['boolean', $value];
} elseif (\is_int($value)) {
$result[$key] = ['integer', $value];
} elseif (\is_float($value)) {
$result[$key] = ['float', $value];
} elseif (\is_resource($value)) {
$result[$key] = ['resource', get_resource_type($value)];
} else {
$result[$key] = ['string', (string) $value];
}
}
return $result;
}
private function getClassNameFromIncomplete(\__PHP_Incomplete_Class $value): string
{
$array = new \ArrayObject($value);
return $array['__PHP_Incomplete_Class_Name'];
}
public function getTraceAsString(): string
{
return $this->traceAsString;
}
/**
* @return $this
*/
public function setAsString(?string $asString): self
{
$this->asString = $asString;
return $this;
}
public function getAsString(): string
{
if (null !== $this->asString) {
return $this->asString;
}
$message = '';
$next = false;
foreach (array_reverse(array_merge([$this], $this->getAllPrevious())) as $exception) {
if ($next) {
$message .= 'Next ';
} else {
$next = true;
}
$message .= $exception->getClass();
if ('' != $exception->getMessage()) {
$message .= ': '.$exception->getMessage();
}
$message .= ' in '.$exception->getFile().':'.$exception->getLine().
"\nStack trace:\n".$exception->getTraceAsString()."\n\n";
}
return rtrim($message);
}
}