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<?php
/**
* Zalo © 2019
*
*/
namespace Zalo\Http;
/**
* Class GraphRawResponse
*
* @package Zalo
*/
class GraphRawResponse
{
/**
* @var array The response headers in the form of an associative array.
*/
protected $headers;
/**
* @var string The raw response body.
*/
protected $body;
/**
* @var int The HTTP status response code.
*/
protected $httpResponseCode;
/**
* Creates a new GraphRawResponse entity.
*
* @param string|array $headers The headers as a raw string or array.
* @param string $body The raw response body.
* @param int $httpStatusCode The HTTP response code (if sending headers as parsed array).
*/
public function __construct($headers, $body, $httpStatusCode = null)
{
if (is_numeric($httpStatusCode)) {
$this->httpResponseCode = (int)$httpStatusCode;
}
if (is_array($headers)) {
$this->headers = $headers;
} else {
$this->setHeadersFromString($headers);
}
$this->body = $body;
}
/**
* Return the response headers.
*
* @return array
*/
public function getHeaders()
{
return $this->headers;
}
/**
* Return the body of the response.
*
* @return string
*/
public function getBody()
{
return $this->body;
}
/**
* Return the HTTP response code.
*
* @return int
*/
public function getHttpResponseCode()
{
return $this->httpResponseCode;
}
/**
* Sets the HTTP response code from a raw header.
*
* @param string $rawResponseHeader
*/
public function setHttpResponseCodeFromHeader($rawResponseHeader)
{
preg_match('/(HTTP\/\d\.\d|HTTP\/\d)\s+(\d+)\s+.*/', $rawResponseHeader, $match);
$this->httpResponseCode = (int)$match[1];
}
/**
* Parse the raw headers and set as an array.
*
* @param string $rawHeaders The raw headers from the response.
*/
protected function setHeadersFromString($rawHeaders)
{
// Normalize line breaks
$rawHeaders = str_replace("\r\n", "\n", $rawHeaders);
// There will be multiple headers if a 301 was followed
// or a proxy was followed, etc
$headerCollection = explode("\n\n", trim($rawHeaders));
// We just want the last response (at the end)
$rawHeader = array_pop($headerCollection);
$headerComponents = explode("\n", $rawHeader);
foreach ($headerComponents as $line) {
if (strpos($line, ': ') === false) {
$this->setHttpResponseCodeFromHeader($line);
} else {
list($key, $value) = explode(': ', $line, 2);
$this->headers[$key] = $value;
}
}
}
}