Chris@0: <?php
Chris@0: 
Chris@0: /*
Chris@0:  * This file is part of the Symfony package.
Chris@0:  *
Chris@0:  * (c) Fabien Potencier <fabien@symfony.com>
Chris@0:  *
Chris@0:  * For the full copyright and license information, please view the LICENSE
Chris@0:  * file that was distributed with this source code.
Chris@0:  */
Chris@0: 
Chris@0: namespace Symfony\Component\HttpFoundation;
Chris@0: 
Chris@0: /**
Chris@0:  * ServerBag is a container for HTTP headers from the $_SERVER variable.
Chris@0:  *
Chris@0:  * @author Fabien Potencier <fabien@symfony.com>
Chris@0:  * @author Bulat Shakirzyanov <mallluhuct@gmail.com>
Chris@0:  * @author Robert Kiss <kepten@gmail.com>
Chris@0:  */
Chris@0: class ServerBag extends ParameterBag
Chris@0: {
Chris@0:     /**
Chris@0:      * Gets the HTTP headers.
Chris@0:      *
Chris@0:      * @return array
Chris@0:      */
Chris@0:     public function getHeaders()
Chris@0:     {
Chris@17:         $headers = [];
Chris@17:         $contentHeaders = ['CONTENT_LENGTH' => true, 'CONTENT_MD5' => true, 'CONTENT_TYPE' => true];
Chris@0:         foreach ($this->parameters as $key => $value) {
Chris@0:             if (0 === strpos($key, 'HTTP_')) {
Chris@0:                 $headers[substr($key, 5)] = $value;
Chris@0:             }
Chris@0:             // CONTENT_* are not prefixed with HTTP_
Chris@0:             elseif (isset($contentHeaders[$key])) {
Chris@0:                 $headers[$key] = $value;
Chris@0:             }
Chris@0:         }
Chris@0: 
Chris@0:         if (isset($this->parameters['PHP_AUTH_USER'])) {
Chris@0:             $headers['PHP_AUTH_USER'] = $this->parameters['PHP_AUTH_USER'];
Chris@0:             $headers['PHP_AUTH_PW'] = isset($this->parameters['PHP_AUTH_PW']) ? $this->parameters['PHP_AUTH_PW'] : '';
Chris@0:         } else {
Chris@0:             /*
Chris@0:              * php-cgi under Apache does not pass HTTP Basic user/pass to PHP by default
Chris@0:              * For this workaround to work, add these lines to your .htaccess file:
Chris@0:              * RewriteCond %{HTTP:Authorization} ^(.+)$
Chris@0:              * RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
Chris@0:              *
Chris@0:              * A sample .htaccess file:
Chris@0:              * RewriteEngine On
Chris@0:              * RewriteCond %{HTTP:Authorization} ^(.+)$
Chris@0:              * RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
Chris@0:              * RewriteCond %{REQUEST_FILENAME} !-f
Chris@0:              * RewriteRule ^(.*)$ app.php [QSA,L]
Chris@0:              */
Chris@0: 
Chris@0:             $authorizationHeader = null;
Chris@0:             if (isset($this->parameters['HTTP_AUTHORIZATION'])) {
Chris@0:                 $authorizationHeader = $this->parameters['HTTP_AUTHORIZATION'];
Chris@0:             } elseif (isset($this->parameters['REDIRECT_HTTP_AUTHORIZATION'])) {
Chris@0:                 $authorizationHeader = $this->parameters['REDIRECT_HTTP_AUTHORIZATION'];
Chris@0:             }
Chris@0: 
Chris@0:             if (null !== $authorizationHeader) {
Chris@0:                 if (0 === stripos($authorizationHeader, 'basic ')) {
Chris@0:                     // Decode AUTHORIZATION header into PHP_AUTH_USER and PHP_AUTH_PW when authorization header is basic
Chris@0:                     $exploded = explode(':', base64_decode(substr($authorizationHeader, 6)), 2);
Chris@17:                     if (2 == \count($exploded)) {
Chris@0:                         list($headers['PHP_AUTH_USER'], $headers['PHP_AUTH_PW']) = $exploded;
Chris@0:                     }
Chris@0:                 } elseif (empty($this->parameters['PHP_AUTH_DIGEST']) && (0 === stripos($authorizationHeader, 'digest '))) {
Chris@0:                     // In some circumstances PHP_AUTH_DIGEST needs to be set
Chris@0:                     $headers['PHP_AUTH_DIGEST'] = $authorizationHeader;
Chris@0:                     $this->parameters['PHP_AUTH_DIGEST'] = $authorizationHeader;
Chris@0:                 } elseif (0 === stripos($authorizationHeader, 'bearer ')) {
Chris@0:                     /*
Chris@0:                      * XXX: Since there is no PHP_AUTH_BEARER in PHP predefined variables,
Chris@0:                      *      I'll just set $headers['AUTHORIZATION'] here.
Chris@0:                      *      http://php.net/manual/en/reserved.variables.server.php
Chris@0:                      */
Chris@0:                     $headers['AUTHORIZATION'] = $authorizationHeader;
Chris@0:                 }
Chris@0:             }
Chris@0:         }
Chris@0: 
Chris@0:         if (isset($headers['AUTHORIZATION'])) {
Chris@0:             return $headers;
Chris@0:         }
Chris@0: 
Chris@0:         // PHP_AUTH_USER/PHP_AUTH_PW
Chris@0:         if (isset($headers['PHP_AUTH_USER'])) {
Chris@0:             $headers['AUTHORIZATION'] = 'Basic '.base64_encode($headers['PHP_AUTH_USER'].':'.$headers['PHP_AUTH_PW']);
Chris@0:         } elseif (isset($headers['PHP_AUTH_DIGEST'])) {
Chris@0:             $headers['AUTHORIZATION'] = $headers['PHP_AUTH_DIGEST'];
Chris@0:         }
Chris@0: 
Chris@0:         return $headers;
Chris@0:     }
Chris@0: }