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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\HttpFoundation;
/**
* ServerBag is a container for HTTP headers from the $_SERVER variable.
*
* @author Fabien Potencier <fabien@symfony.com>
* @author Bulat Shakirzyanov <mallluhuct@gmail.com>
* @author Robert Kiss <kepten@gmail.com>
*/
class ServerBag extends ParameterBag
{
/**
* Gets the HTTP headers.
*
* @return array
*/
public function getHeaders()
{
$headers = [];
$contentHeaders = ['CONTENT_LENGTH' => true, 'CONTENT_MD5' => true, 'CONTENT_TYPE' => true];
foreach ($this->parameters as $key => $value) {
if (0 === strpos($key, 'HTTP_')) {
$headers[substr($key, 5)] = $value;
}
// CONTENT_* are not prefixed with HTTP_
elseif (isset($contentHeaders[$key])) {
$headers[$key] = $value;
}
}
if (isset($this->parameters['PHP_AUTH_USER'])) {
$headers['PHP_AUTH_USER'] = $this->parameters['PHP_AUTH_USER'];
$headers['PHP_AUTH_PW'] = isset($this->parameters['PHP_AUTH_PW']) ? $this->parameters['PHP_AUTH_PW'] : '';
} else {
/*
* php-cgi under Apache does not pass HTTP Basic user/pass to PHP by default
* For this workaround to work, add these lines to your .htaccess file:
* RewriteCond %{HTTP:Authorization} ^(.+)$
* RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
*
* A sample .htaccess file:
* RewriteEngine On
* RewriteCond %{HTTP:Authorization} ^(.+)$
* RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
* RewriteCond %{REQUEST_FILENAME} !-f
* RewriteRule ^(.*)$ app.php [QSA,L]
*/
$authorizationHeader = null;
if (isset($this->parameters['HTTP_AUTHORIZATION'])) {
$authorizationHeader = $this->parameters['HTTP_AUTHORIZATION'];
} elseif (isset($this->parameters['REDIRECT_HTTP_AUTHORIZATION'])) {
$authorizationHeader = $this->parameters['REDIRECT_HTTP_AUTHORIZATION'];
}
if (null !== $authorizationHeader) {
if (0 === stripos($authorizationHeader, 'basic ')) {
// Decode AUTHORIZATION header into PHP_AUTH_USER and PHP_AUTH_PW when authorization header is basic
$exploded = explode(':', base64_decode(substr($authorizationHeader, 6)), 2);
if (2 == \count($exploded)) {
list($headers['PHP_AUTH_USER'], $headers['PHP_AUTH_PW']) = $exploded;
}
} elseif (empty($this->parameters['PHP_AUTH_DIGEST']) && (0 === stripos($authorizationHeader, 'digest '))) {
// In some circumstances PHP_AUTH_DIGEST needs to be set
$headers['PHP_AUTH_DIGEST'] = $authorizationHeader;
$this->parameters['PHP_AUTH_DIGEST'] = $authorizationHeader;
} elseif (0 === stripos($authorizationHeader, 'bearer ')) {
/*
* XXX: Since there is no PHP_AUTH_BEARER in PHP predefined variables,
* I'll just set $headers['AUTHORIZATION'] here.
* http://php.net/manual/en/reserved.variables.server.php
*/
$headers['AUTHORIZATION'] = $authorizationHeader;
}
}
}
if (isset($headers['AUTHORIZATION'])) {
return $headers;
}
// PHP_AUTH_USER/PHP_AUTH_PW
if (isset($headers['PHP_AUTH_USER'])) {
$headers['AUTHORIZATION'] = 'Basic '.base64_encode($headers['PHP_AUTH_USER'].':'.$headers['PHP_AUTH_PW']);
} elseif (isset($headers['PHP_AUTH_DIGEST'])) {
$headers['AUTHORIZATION'] = $headers['PHP_AUTH_DIGEST'];
}
return $headers;
}
}
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