/usr/share/php/sabre21/Sabre/HTTP/Sapi.php is in php-sabre-http-3 3.0.5-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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namespace Sabre\HTTP;
/**
* PHP SAPI
*
* This object is responsible for:
* 1. Constructing a Request object based on the current HTTP request sent to
* the PHP process.
* 2. Sending the Response object back to the client.
*
* It could be said that this class provides a mapping between the Request and
* Response objects, and php's:
*
* * $_SERVER
* * $_POST
* * $_FILES
* * php://input
* * echo()
* * header()
* * php://output
*
* You can choose to either call all these methods statically, but you can also
* instantiate this as an object to allow for polymorhpism.
*
* @copyright Copyright (C) 2009-2015 fruux GmbH (https://fruux.com/).
* @author Evert Pot (http://evertpot.com/)
* @license http://sabre.io/license/ Modified BSD License
*/
class Sapi {
/**
* This static method will create a new Request object, based on the
* current PHP request.
*
* @return Request
*/
static function getRequest() {
$r = self::createFromServerArray($_SERVER);
$r->setBody(fopen('php://input','r'));
$r->setPostData($_POST);
return $r;
}
/**
* Sends the HTTP response back to a HTTP client.
*
* This calls php's header() function and streams the body to php://output.
*
* @param ResponseInterface $response
* @return void
*/
static function sendResponse(ResponseInterface $response) {
header('HTTP/' . $response->getHttpVersion() . ' ' . $response->getStatus() . ' ' . $response->getStatusText());
foreach($response->getHeaders() as $key=>$value) {
foreach($value as $k=>$v) {
if ($k === 0) {
header($key . ': ' . $v);
} else {
header($key . ': ' . $v, false);
}
}
}
file_put_contents('php://output', $response->getBody());
}
/**
* This static method will create a new Request object, based on a PHP
* $_SERVER array.
*
* @param array $serverArray
* @return Request
*/
static function createFromServerArray(array $serverArray) {
$headers = [];
$method = null;
$url = null;
$httpVersion = '1.1';
$protocol = 'http';
$hostName = 'localhost';
foreach($serverArray as $key=>$value) {
switch($key) {
case 'SERVER_PROTOCOL' :
if ($value==='HTTP/1.0') {
$httpVersion = '1.0';
}
break;
case 'REQUEST_METHOD' :
$method = $value;
break;
case 'REQUEST_URI' :
$url = $value;
break;
// These sometimes should up without a HTTP_ prefix
case 'CONTENT_TYPE' :
$headers['Content-Type'] = $value;
break;
case 'CONTENT_LENGTH' :
$headers['Content-Length'] = $value;
break;
// mod_php on apache will put credentials in these variables.
// (fast)cgi does not usually do this, however.
case 'PHP_AUTH_USER' :
if (isset($serverArray['PHP_AUTH_PW'])) {
$headers['Authorization'] = 'Basic ' . base64_encode($value . ':' . $serverArray['PHP_AUTH_PW']);
}
break;
// Similarly, mod_php may also screw around with digest auth.
case 'PHP_AUTH_DIGEST' :
$headers['Authorization'] = 'Digest ' . $value;
break;
// Apache may prefix the HTTP_AUTHORIZATION header with
// REDIRECT_, if mod_rewrite was used.
case 'REDIRECT_HTTP_AUTHORIZATION' :
$headers['Authorization'] = $value;
break;
case 'HTTP_HOST' :
$hostName = $value;
$headers['Host'] = $value;
break;
case 'HTTPS' :
if (!empty($value) && $value!=='off') {
$protocol = 'https';
}
break;
default :
if (substr($key,0,5)==='HTTP_') {
// It's a HTTP header
// Normalizing it to be prettier
$header = strtolower(substr($key,5));
// Transforming dashes into spaces, and uppercasing
// every first letter.
$header = ucwords(str_replace('_', ' ', $header));
// Turning spaces into dashes.
$header = str_replace(' ', '-', $header);
$headers[$header] = $value;
}
break;
}
}
$r = new Request($method, $url, $headers);
$r->setHttpVersion($httpVersion);
$r->setRawServerData($serverArray);
$r->setAbsoluteUrl($protocol . '://' . $hostName . $url);
return $r;
}
}
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