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<?php
/**
* Slim Framework (https://slimframework.com)
*
* @license https://github.com/slimphp/Slim-Psr7/blob/master/LICENSE.md (MIT License)
*/
declare(strict_types=1);
namespace Slim\Psr7;
use Fig\Http\Message\StatusCodeInterface;
use InvalidArgumentException;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\StreamInterface;
use Slim\Psr7\Factory\StreamFactory;
use Slim\Psr7\Interfaces\HeadersInterface;
use function is_integer;
use function is_object;
use function is_string;
use function method_exists;
class Response extends Message implements ResponseInterface
{
/**
* @var int
*/
protected $status = StatusCodeInterface::STATUS_OK;
/**
* @var string
*/
protected $reasonPhrase = '';
/**
* @var array
*/
protected static $messages = [
// Informational 1xx
StatusCodeInterface::STATUS_CONTINUE => 'Continue',
StatusCodeInterface::STATUS_SWITCHING_PROTOCOLS => 'Switching Protocols',
StatusCodeInterface::STATUS_PROCESSING => 'Processing',
// Successful 2xx
StatusCodeInterface::STATUS_OK => 'OK',
StatusCodeInterface::STATUS_CREATED => 'Created',
StatusCodeInterface::STATUS_ACCEPTED => 'Accepted',
StatusCodeInterface::STATUS_NON_AUTHORITATIVE_INFORMATION => 'Non-Authoritative Information',
StatusCodeInterface::STATUS_NO_CONTENT => 'No Content',
StatusCodeInterface::STATUS_RESET_CONTENT => 'Reset Content',
StatusCodeInterface::STATUS_PARTIAL_CONTENT => 'Partial Content',
StatusCodeInterface::STATUS_MULTI_STATUS => 'Multi-Status',
StatusCodeInterface::STATUS_ALREADY_REPORTED => 'Already Reported',
StatusCodeInterface::STATUS_IM_USED => 'IM Used',
// Redirection 3xx
StatusCodeInterface::STATUS_MULTIPLE_CHOICES => 'Multiple Choices',
StatusCodeInterface::STATUS_MOVED_PERMANENTLY => 'Moved Permanently',
StatusCodeInterface::STATUS_FOUND => 'Found',
StatusCodeInterface::STATUS_SEE_OTHER => 'See Other',
StatusCodeInterface::STATUS_NOT_MODIFIED => 'Not Modified',
StatusCodeInterface::STATUS_USE_PROXY => 'Use Proxy',
StatusCodeInterface::STATUS_RESERVED => '(Unused)',
StatusCodeInterface::STATUS_TEMPORARY_REDIRECT => 'Temporary Redirect',
StatusCodeInterface::STATUS_PERMANENT_REDIRECT => 'Permanent Redirect',
// Client Error 4xx
StatusCodeInterface::STATUS_BAD_REQUEST => 'Bad Request',
StatusCodeInterface::STATUS_UNAUTHORIZED => 'Unauthorized',
StatusCodeInterface::STATUS_PAYMENT_REQUIRED => 'Payment Required',
StatusCodeInterface::STATUS_FORBIDDEN => 'Forbidden',
StatusCodeInterface::STATUS_NOT_FOUND => 'Not Found',
StatusCodeInterface::STATUS_METHOD_NOT_ALLOWED => 'Method Not Allowed',
StatusCodeInterface::STATUS_NOT_ACCEPTABLE => 'Not Acceptable',
StatusCodeInterface::STATUS_PROXY_AUTHENTICATION_REQUIRED => 'Proxy Authentication Required',
StatusCodeInterface::STATUS_REQUEST_TIMEOUT => 'Request Timeout',
StatusCodeInterface::STATUS_CONFLICT => 'Conflict',
StatusCodeInterface::STATUS_GONE => 'Gone',
StatusCodeInterface::STATUS_LENGTH_REQUIRED => 'Length Required',
StatusCodeInterface::STATUS_PRECONDITION_FAILED => 'Precondition Failed',
StatusCodeInterface::STATUS_PAYLOAD_TOO_LARGE => 'Request Entity Too Large',
StatusCodeInterface::STATUS_URI_TOO_LONG => 'Request-URI Too Long',
StatusCodeInterface::STATUS_UNSUPPORTED_MEDIA_TYPE => 'Unsupported Media Type',
StatusCodeInterface::STATUS_RANGE_NOT_SATISFIABLE => 'Requested Range Not Satisfiable',
StatusCodeInterface::STATUS_EXPECTATION_FAILED => 'Expectation Failed',
StatusCodeInterface::STATUS_IM_A_TEAPOT => 'I\'m a teapot',
StatusCodeInterface::STATUS_MISDIRECTED_REQUEST => 'Misdirected Request',
StatusCodeInterface::STATUS_UNPROCESSABLE_ENTITY => 'Unprocessable Entity',
StatusCodeInterface::STATUS_LOCKED => 'Locked',
StatusCodeInterface::STATUS_FAILED_DEPENDENCY => 'Failed Dependency',
StatusCodeInterface::STATUS_UPGRADE_REQUIRED => 'Upgrade Required',
StatusCodeInterface::STATUS_PRECONDITION_REQUIRED => 'Precondition Required',
StatusCodeInterface::STATUS_TOO_MANY_REQUESTS => 'Too Many Requests',
StatusCodeInterface::STATUS_REQUEST_HEADER_FIELDS_TOO_LARGE => 'Request Header Fields Too Large',
444 => 'Connection Closed Without Response',
StatusCodeInterface::STATUS_UNAVAILABLE_FOR_LEGAL_REASONS => 'Unavailable For Legal Reasons',
499 => 'Client Closed Request',
// Server Error 5xx
StatusCodeInterface::STATUS_INTERNAL_SERVER_ERROR => 'Internal Server Error',
StatusCodeInterface::STATUS_NOT_IMPLEMENTED => 'Not Implemented',
StatusCodeInterface::STATUS_BAD_GATEWAY => 'Bad Gateway',
StatusCodeInterface::STATUS_SERVICE_UNAVAILABLE => 'Service Unavailable',
StatusCodeInterface::STATUS_GATEWAY_TIMEOUT => 'Gateway Timeout',
StatusCodeInterface::STATUS_VERSION_NOT_SUPPORTED => 'HTTP Version Not Supported',
StatusCodeInterface::STATUS_VARIANT_ALSO_NEGOTIATES => 'Variant Also Negotiates',
StatusCodeInterface::STATUS_INSUFFICIENT_STORAGE => 'Insufficient Storage',
StatusCodeInterface::STATUS_LOOP_DETECTED => 'Loop Detected',
StatusCodeInterface::STATUS_NOT_EXTENDED => 'Not Extended',
StatusCodeInterface::STATUS_NETWORK_AUTHENTICATION_REQUIRED => 'Network Authentication Required',
599 => 'Network Connect Timeout Error',
];
/**
* @param int $status The response status code.
* @param HeadersInterface|null $headers The response headers.
* @param StreamInterface|null $body The response body.
*/
public function __construct(
int $status = StatusCodeInterface::STATUS_OK,
?HeadersInterface $headers = null,
?StreamInterface $body = null
) {
$this->status = $this->filterStatus($status);
$this->headers = $headers ? $headers : new Headers([], []);
$this->body = $body ? $body : (new StreamFactory())->createStream();
}
/**
* This method is applied to the cloned object after PHP performs an initial shallow-copy.
* This method completes a deep-copy by creating new objects for the cloned object's internal reference pointers.
*/
public function __clone()
{
$this->headers = clone $this->headers;
}
/**
* {@inheritdoc}
*/
public function getStatusCode(): int
{
return $this->status;
}
/**
* {@inheritdoc}
*/
public function withStatus($code, $reasonPhrase = '')
{
$code = $this->filterStatus($code);
$reasonPhrase = $this->filterReasonPhrase($reasonPhrase);
$clone = clone $this;
$clone->status = $code;
$clone->reasonPhrase = $reasonPhrase;
return $clone;
}
/**
* {@inheritdoc}
*/
public function getReasonPhrase(): string
{
if ($this->reasonPhrase !== '') {
return $this->reasonPhrase;
}
if (isset(static::$messages[$this->status])) {
return static::$messages[$this->status];
}
return '';
}
/**
* Filter HTTP status code.
*
* @param int $status HTTP status code.
*
* @return int
*
* @throws InvalidArgumentException If an invalid HTTP status code is provided.
*/
protected function filterStatus($status): int
{
if (!is_integer($status) || $status < StatusCodeInterface::STATUS_CONTINUE || $status > 599) {
throw new InvalidArgumentException('Invalid HTTP status code.');
}
return $status;
}
/**
* Filter Reason Phrase
*
* @param mixed $reasonPhrase
*
* @return string
*
* @throws InvalidArgumentException
*/
protected function filterReasonPhrase($reasonPhrase = ''): string
{
if (is_object($reasonPhrase) && method_exists($reasonPhrase, '__toString')) {
$reasonPhrase = (string) $reasonPhrase;
}
if (!is_string($reasonPhrase)) {
throw new InvalidArgumentException('Response reason phrase must be a string.');
}
if (strpos($reasonPhrase, "\r") || strpos($reasonPhrase, "\n")) {
throw new InvalidArgumentException(
'Reason phrase contains one of the following prohibited characters: \r \n'
);
}
return $reasonPhrase;
}
}