Chris@0: <?php
Chris@0: 
Chris@0: /*
Chris@0:  * This file is part of the Symfony package.
Chris@0:  *
Chris@0:  * (c) Fabien Potencier <fabien@symfony.com>
Chris@0:  *
Chris@0:  * For the full copyright and license information, please view the LICENSE
Chris@0:  * file that was distributed with this source code.
Chris@0:  */
Chris@0: 
Chris@0: namespace Symfony\Component\Debug\Exception;
Chris@0: 
Chris@12: use Symfony\Component\HttpFoundation\Exception\RequestExceptionInterface;
Chris@0: use Symfony\Component\HttpKernel\Exception\HttpExceptionInterface;
Chris@0: 
Chris@0: /**
Chris@0:  * FlattenException wraps a PHP Exception to be able to serialize it.
Chris@0:  *
Chris@0:  * Basically, this class removes all objects from the trace.
Chris@0:  *
Chris@0:  * @author Fabien Potencier <fabien@symfony.com>
Chris@0:  */
Chris@0: class FlattenException
Chris@0: {
Chris@0:     private $message;
Chris@0:     private $code;
Chris@0:     private $previous;
Chris@0:     private $trace;
Chris@0:     private $class;
Chris@0:     private $statusCode;
Chris@0:     private $headers;
Chris@0:     private $file;
Chris@0:     private $line;
Chris@0: 
Chris@17:     public static function create(\Exception $exception, $statusCode = null, array $headers = [])
Chris@0:     {
Chris@0:         $e = new static();
Chris@0:         $e->setMessage($exception->getMessage());
Chris@0:         $e->setCode($exception->getCode());
Chris@0: 
Chris@0:         if ($exception instanceof HttpExceptionInterface) {
Chris@0:             $statusCode = $exception->getStatusCode();
Chris@0:             $headers = array_merge($headers, $exception->getHeaders());
Chris@12:         } elseif ($exception instanceof RequestExceptionInterface) {
Chris@12:             $statusCode = 400;
Chris@0:         }
Chris@0: 
Chris@0:         if (null === $statusCode) {
Chris@0:             $statusCode = 500;
Chris@0:         }
Chris@0: 
Chris@0:         $e->setStatusCode($statusCode);
Chris@0:         $e->setHeaders($headers);
Chris@0:         $e->setTraceFromException($exception);
Chris@17:         $e->setClass(\get_class($exception));
Chris@0:         $e->setFile($exception->getFile());
Chris@0:         $e->setLine($exception->getLine());
Chris@0: 
Chris@0:         $previous = $exception->getPrevious();
Chris@0: 
Chris@0:         if ($previous instanceof \Exception) {
Chris@0:             $e->setPrevious(static::create($previous));
Chris@0:         } elseif ($previous instanceof \Throwable) {
Chris@0:             $e->setPrevious(static::create(new FatalThrowableError($previous)));
Chris@0:         }
Chris@0: 
Chris@0:         return $e;
Chris@0:     }
Chris@0: 
Chris@0:     public function toArray()
Chris@0:     {
Chris@17:         $exceptions = [];
Chris@17:         foreach (array_merge([$this], $this->getAllPrevious()) as $exception) {
Chris@17:             $exceptions[] = [
Chris@0:                 'message' => $exception->getMessage(),
Chris@0:                 'class' => $exception->getClass(),
Chris@0:                 'trace' => $exception->getTrace(),
Chris@17:             ];
Chris@0:         }
Chris@0: 
Chris@0:         return $exceptions;
Chris@0:     }
Chris@0: 
Chris@0:     public function getStatusCode()
Chris@0:     {
Chris@0:         return $this->statusCode;
Chris@0:     }
Chris@0: 
Chris@0:     public function setStatusCode($code)
Chris@0:     {
Chris@0:         $this->statusCode = $code;
Chris@0:     }
Chris@0: 
Chris@0:     public function getHeaders()
Chris@0:     {
Chris@0:         return $this->headers;
Chris@0:     }
Chris@0: 
Chris@0:     public function setHeaders(array $headers)
Chris@0:     {
Chris@0:         $this->headers = $headers;
Chris@0:     }
Chris@0: 
Chris@0:     public function getClass()
Chris@0:     {
Chris@0:         return $this->class;
Chris@0:     }
Chris@0: 
Chris@0:     public function setClass($class)
Chris@0:     {
Chris@0:         $this->class = $class;
Chris@0:     }
Chris@0: 
Chris@0:     public function getFile()
Chris@0:     {
Chris@0:         return $this->file;
Chris@0:     }
Chris@0: 
Chris@0:     public function setFile($file)
Chris@0:     {
Chris@0:         $this->file = $file;
Chris@0:     }
Chris@0: 
Chris@0:     public function getLine()
Chris@0:     {
Chris@0:         return $this->line;
Chris@0:     }
Chris@0: 
Chris@0:     public function setLine($line)
Chris@0:     {
Chris@0:         $this->line = $line;
Chris@0:     }
Chris@0: 
Chris@0:     public function getMessage()
Chris@0:     {
Chris@0:         return $this->message;
Chris@0:     }
Chris@0: 
Chris@0:     public function setMessage($message)
Chris@0:     {
Chris@0:         $this->message = $message;
Chris@0:     }
Chris@0: 
Chris@0:     public function getCode()
Chris@0:     {
Chris@0:         return $this->code;
Chris@0:     }
Chris@0: 
Chris@0:     public function setCode($code)
Chris@0:     {
Chris@0:         $this->code = $code;
Chris@0:     }
Chris@0: 
Chris@0:     public function getPrevious()
Chris@0:     {
Chris@0:         return $this->previous;
Chris@0:     }
Chris@0: 
Chris@16:     public function setPrevious(self $previous)
Chris@0:     {
Chris@0:         $this->previous = $previous;
Chris@0:     }
Chris@0: 
Chris@0:     public function getAllPrevious()
Chris@0:     {
Chris@17:         $exceptions = [];
Chris@0:         $e = $this;
Chris@0:         while ($e = $e->getPrevious()) {
Chris@0:             $exceptions[] = $e;
Chris@0:         }
Chris@0: 
Chris@0:         return $exceptions;
Chris@0:     }
Chris@0: 
Chris@0:     public function getTrace()
Chris@0:     {
Chris@0:         return $this->trace;
Chris@0:     }
Chris@0: 
Chris@0:     public function setTraceFromException(\Exception $exception)
Chris@0:     {
Chris@0:         $this->setTrace($exception->getTrace(), $exception->getFile(), $exception->getLine());
Chris@0:     }
Chris@0: 
Chris@0:     public function setTrace($trace, $file, $line)
Chris@0:     {
Chris@17:         $this->trace = [];
Chris@17:         $this->trace[] = [
Chris@0:             'namespace' => '',
Chris@0:             'short_class' => '',
Chris@0:             'class' => '',
Chris@0:             'type' => '',
Chris@0:             'function' => '',
Chris@0:             'file' => $file,
Chris@0:             'line' => $line,
Chris@17:             'args' => [],
Chris@17:         ];
Chris@0:         foreach ($trace as $entry) {
Chris@0:             $class = '';
Chris@0:             $namespace = '';
Chris@0:             if (isset($entry['class'])) {
Chris@0:                 $parts = explode('\\', $entry['class']);
Chris@0:                 $class = array_pop($parts);
Chris@0:                 $namespace = implode('\\', $parts);
Chris@0:             }
Chris@0: 
Chris@17:             $this->trace[] = [
Chris@0:                 'namespace' => $namespace,
Chris@0:                 'short_class' => $class,
Chris@0:                 'class' => isset($entry['class']) ? $entry['class'] : '',
Chris@0:                 'type' => isset($entry['type']) ? $entry['type'] : '',
Chris@0:                 'function' => isset($entry['function']) ? $entry['function'] : null,
Chris@0:                 'file' => isset($entry['file']) ? $entry['file'] : null,
Chris@0:                 'line' => isset($entry['line']) ? $entry['line'] : null,
Chris@17:                 'args' => isset($entry['args']) ? $this->flattenArgs($entry['args']) : [],
Chris@17:             ];
Chris@0:         }
Chris@0:     }
Chris@0: 
Chris@0:     private function flattenArgs($args, $level = 0, &$count = 0)
Chris@0:     {
Chris@17:         $result = [];
Chris@0:         foreach ($args as $key => $value) {
Chris@0:             if (++$count > 1e4) {
Chris@17:                 return ['array', '*SKIPPED over 10000 entries*'];
Chris@0:             }
Chris@0:             if ($value instanceof \__PHP_Incomplete_Class) {
Chris@0:                 // is_object() returns false on PHP<=7.1
Chris@17:                 $result[$key] = ['incomplete-object', $this->getClassNameFromIncomplete($value)];
Chris@17:             } elseif (\is_object($value)) {
Chris@17:                 $result[$key] = ['object', \get_class($value)];
Chris@17:             } elseif (\is_array($value)) {
Chris@0:                 if ($level > 10) {
Chris@17:                     $result[$key] = ['array', '*DEEP NESTED ARRAY*'];
Chris@0:                 } else {
Chris@17:                     $result[$key] = ['array', $this->flattenArgs($value, $level + 1, $count)];
Chris@0:                 }
Chris@0:             } elseif (null === $value) {
Chris@17:                 $result[$key] = ['null', null];
Chris@17:             } elseif (\is_bool($value)) {
Chris@17:                 $result[$key] = ['boolean', $value];
Chris@17:             } elseif (\is_int($value)) {
Chris@17:                 $result[$key] = ['integer', $value];
Chris@17:             } elseif (\is_float($value)) {
Chris@17:                 $result[$key] = ['float', $value];
Chris@17:             } elseif (\is_resource($value)) {
Chris@17:                 $result[$key] = ['resource', get_resource_type($value)];
Chris@0:             } else {
Chris@17:                 $result[$key] = ['string', (string) $value];
Chris@0:             }
Chris@0:         }
Chris@0: 
Chris@0:         return $result;
Chris@0:     }
Chris@0: 
Chris@0:     private function getClassNameFromIncomplete(\__PHP_Incomplete_Class $value)
Chris@0:     {
Chris@0:         $array = new \ArrayObject($value);
Chris@0: 
Chris@0:         return $array['__PHP_Incomplete_Class_Name'];
Chris@0:     }
Chris@0: }