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<?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * 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; use Symfony\Component\VarDumper\Caster\Caster; use Symfony\Component\VarDumper\Cloner\Data; use Symfony\Component\VarDumper\Cloner\Stub; use Symfony\Component\VarDumper\Cloner\VarCloner; /** * 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 <fabien@symfony.com> */ class FlattenException { private string $message; private string|int $code; private ?self $previous = null; private array $trace; private string $traceAsString; private string $class; private int $statusCode; private string $statusText; private array $headers; private string $file; private int $line; private ?string $asString = null; private Data $dataRepresentation; public static function create(\Exception $exception, ?int $statusCode = null, array $headers = []): static { return static::createFromThrowable($exception, $statusCode, $headers); } public static function createFromThrowable(\Throwable $exception, ?int $statusCode = null, array $headers = []): static { $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; } $statusCode ??= 500; if (class_exists(Response::class) && isset(Response::$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 static function createWithDataRepresentation(\Throwable $throwable, ?int $statusCode = null, array $headers = [], ?VarCloner $cloner = null): static { $e = static::createFromThrowable($throwable, $statusCode, $headers); static $defaultCloner; if (!$cloner ??= $defaultCloner) { $cloner = $defaultCloner = new VarCloner(); $cloner->addCasters([ \Throwable::class => function (\Throwable $e, array $a, Stub $s, bool $isNested): array { if (!$isNested) { unset($a[Caster::PREFIX_PROTECTED.'message']); unset($a[Caster::PREFIX_PROTECTED.'code']); unset($a[Caster::PREFIX_PROTECTED.'file']); unset($a[Caster::PREFIX_PROTECTED.'line']); unset($a["\0Error\0trace"], $a["\0Exception\0trace"]); unset($a["\0Error\0previous"], $a["\0Exception\0previous"]); } return $a; }, ]); } return $e->setDataRepresentation($cloner->cloneVar($throwable)); } public function toArray(): array { $exceptions = []; foreach (array_merge([$this], $this->getAllPrevious()) as $exception) { $exceptions[] = [ 'message' => $exception->getMessage(), 'class' => $exception->getClass(), 'trace' => $exception->getTrace(), 'data' => $exception->getDataRepresentation(), ]; } return $exceptions; } public function getStatusCode(): int { return $this->statusCode; } /** * @return $this */ public function setStatusCode(int $code): static { $this->statusCode = $code; return $this; } public function getHeaders(): array { return $this->headers; } /** * @return $this */ public function setHeaders(array $headers): static { $this->headers = $headers; return $this; } public function getClass(): string { return $this->class; } /** * @return $this */ public function setClass(string $class): static { $this->class = str_contains($class, "@anonymous\0") ? (get_parent_class($class) ?: key(class_implements($class)) ?: 'class').'@anonymous' : $class; return $this; } public function getFile(): string { return $this->file; } /** * @return $this */ public function setFile(string $file): static { $this->file = $file; return $this; } public function getLine(): int { return $this->line; } /** * @return $this */ public function setLine(int $line): static { $this->line = $line; return $this; } public function getStatusText(): string { return $this->statusText; } /** * @return $this */ public function setStatusText(string $statusText): static { $this->statusText = $statusText; return $this; } public function getMessage(): string { return $this->message; } /** * @return $this */ public function setMessage(string $message): static { if (str_contains($message, "@anonymous\0")) { $message = preg_replace_callback('/[a-zA-Z_\x7f-\xff][\\\\a-zA-Z0-9_\x7f-\xff]*+@anonymous\x00.*?\.php(?:0x?|:[0-9]++\$)?[0-9a-fA-F]++/', fn ($m) => 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(): int|string { return $this->code; } /** * @return $this */ public function setCode(int|string $code): static { $this->code = $code; return $this; } public function getPrevious(): ?self { return $this->previous; } /** * @return $this */ public function setPrevious(?self $previous): static { $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): static { $this->traceAsString = $throwable->getTraceAsString(); return $this->setTrace($throwable->getTrace(), $throwable->getFile(), $throwable->getLine()); } /** * @return $this */ public function setTrace(array $trace, ?string $file, ?int $line): static { $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; } public function getDataRepresentation(): ?Data { return $this->dataRepresentation ?? null; } /** * @return $this */ public function setDataRepresentation(Data $data): static { $this->dataRepresentation = $data; 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) { $result[$key] = ['incomplete-object', $this->getClassNameFromIncomplete($value)]; } elseif (\is_object($value)) { $result[$key] = ['object', get_debug_type($value)]; } elseif (\is_array($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): static { $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); } }
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