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<?php
namespace rest\http;
use rest\lib\rest_error_interno;
/**
* Abstae la respuesta HTTP. Permite setearle estados, headers
* y contenido que subclases puede imprimir con otro formato o
* con los helpers apropiados.
*
*/
class respuesta
{
/**
* @var int HTTP status code
*/
protected $status;
/**
* @var array
*/
public $headers;
/**
* @var mixed Los datos del cuerpo
*/
protected $data;
protected $encoding;
/**
* @var array codigos HTTP para los encabezados
*/
protected static $messages = array(
//Informational 1xx
100 => '100 Continue',
101 => '101 Switching Protocols',
//Successful 2xx
200 => '200 OK',
201 => '201 Created',
202 => '202 Accepted',
203 => '203 Non-Authoritative Information',
204 => '204 No Content',
205 => '205 Reset Content',
206 => '206 Partial Content',
//Redirection 3xx
300 => '300 Multiple Choices',
301 => '301 Moved Permanently',
302 => '302 Found',
303 => '303 See Other',
304 => '304 Not Modified',
305 => '305 Use Proxy',
306 => '306 (Unused)',
307 => '307 Temporary Redirect',
//Client Error 4xx
400 => '400 Bad Request',
401 => '401 Unauthorized',
402 => '402 Payment Required',
403 => '403 Forbidden',
404 => '404 Not Found',
405 => '405 Method Not Allowed',
406 => '406 Not Acceptable',
407 => '407 Proxy Authentication Required',
408 => '408 Request Timeout',
409 => '409 Conflict',
410 => '410 Gone',
411 => '411 Length Required',
412 => '412 Precondition Failed',
413 => '413 Request Entity Too Large',
414 => '414 Request-URI Too Long',
415 => '415 Unsupported Media Type',
416 => '416 Requested Range Not Satisfiable',
417 => '417 Expectation Failed',
418 => '418 I\'m a teapot',
422 => '422 Unprocessable Entity',
423 => '423 Locked',
//Server Error 5xx
500 => '500 Internal Server Error',
501 => '501 Not Implemented',
502 => '502 Bad Gateway',
503 => '503 Service Unavailable',
504 => '504 Gateway Timeout',
505 => '505 HTTP Version Not Supported'
);
/**
* Constructor
* @param mixed $data El cuerpo de la respuesta
* @param int $status El status HTTP
* @param array $headers Headers
*/
public function __construct($data = null, $status = 200, $headers = array())
{
$this->set_status($status);
$this->headers = array_merge(array('Content-Type' => 'text/html'), $headers);
$this->set_data($data);
}
public function set_encoding_datos($encoding)
{
$this->encoding = $encoding;
}
public function get_encoding_datos()
{
return $this->encoding;
}
public function get_status()
{
return $this->status;
}
public function set_status($status)
{
$this->status = (int) $status;
return $this;
}
public function add_headers(array $headers)
{
$this->headers = array_merge($this->headers, $headers);
return $this;
}
public function get_data()
{
return $this->data;
}
public function set_data($content)
{
$this->data = $content;
return $this;
}
/**
* Realiza chequeos sobre el formato de la respuesta antes de enviarla
*/
public function finalizar()
{
if (in_array($this->status, array(204, 304))) {
unset($this->headers['Content-Type']);
unset($this->headers['Content-Length']);
$this->set_data('');
}
if (!isset($this->data)) {
throw new rest_error_interno("El contenido de la respuesta no puede ser nulo. Si no se desea una respuesta, inicializar
en '' o arreglo vacio");
}
}
/**
* Get message for HTTP status code
* @param int $status
* @return string|null
*/
public static function getMessageForCode($status)
{
if (isset(self::$messages[$status])) {
return self::$messages[$status];
} else {
return null;
}
}
}
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