1: <?php
 2: 
 3: /*
 4:  * This file is part of the Symfony package.
 5:  *
 6:  * (c) Fabien Potencier <fabien@symfony.com>
 7:  *
 8:  * For the full copyright and license information, please view the LICENSE
 9:  * file that was distributed with this source code.
10:  */
11: 
12: namespace Symfony\Component\HttpFoundation;
13: 
14: /**
15:  * ServerBag is a container for HTTP headers from the $_SERVER variable.
16:  *
17:  * @author Fabien Potencier <fabien@symfony.com>
18:  * @author Bulat Shakirzyanov <mallluhuct@gmail.com>
19:  * @author Robert Kiss <kepten@gmail.com>
20:  */
21: class ServerBag extends ParameterBag
22: {
23:     /**
24:      * Gets the HTTP headers.
25:      *
26:      * @return array
27:      */
28:     public function getHeaders()
29:     {
30:         $headers = array();
31:         foreach ($this->parameters as $key => $value) {
32:             if (0 === strpos($key, 'HTTP_')) {
33:                 $headers[substr($key, 5)] = $value;
34:             }
35:             // CONTENT_* are not prefixed with HTTP_
36:             elseif (in_array($key, array('CONTENT_LENGTH', 'CONTENT_MD5', 'CONTENT_TYPE'))) {
37:                 $headers[$key] = $value;
38:             }
39:         }
40: 
41:         if (isset($this->parameters['PHP_AUTH_USER'])) {
42:             $headers['PHP_AUTH_USER'] = $this->parameters['PHP_AUTH_USER'];
43:             $headers['PHP_AUTH_PW'] = isset($this->parameters['PHP_AUTH_PW']) ? $this->parameters['PHP_AUTH_PW'] : '';
44:         } else {
45:             /*
46:              * php-cgi under Apache does not pass HTTP Basic user/pass to PHP by default
47:              * For this workaround to work, add these lines to your .htaccess file:
48:              * RewriteCond %{HTTP:Authorization} ^(.+)$
49:              * RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
50:              *
51:              * A sample .htaccess file:
52:              * RewriteEngine On
53:              * RewriteCond %{HTTP:Authorization} ^(.+)$
54:              * RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
55:              * RewriteCond %{REQUEST_FILENAME} !-f
56:              * RewriteRule ^(.*)$ app.php [QSA,L]
57:              */
58: 
59:             $authorizationHeader = null;
60:             if (isset($this->parameters['HTTP_AUTHORIZATION'])) {
61:                 $authorizationHeader = $this->parameters['HTTP_AUTHORIZATION'];
62:             } elseif (isset($this->parameters['REDIRECT_HTTP_AUTHORIZATION'])) {
63:                 $authorizationHeader = $this->parameters['REDIRECT_HTTP_AUTHORIZATION'];
64:             }
65: 
66:             // Decode AUTHORIZATION header into PHP_AUTH_USER and PHP_AUTH_PW when authorization header is basic
67:             if ((null !== $authorizationHeader) && (0 === stripos($authorizationHeader, 'basic'))) {
68:                 $exploded = explode(':', base64_decode(substr($authorizationHeader, 6)));
69:                 if (count($exploded) == 2) {
70:                     list($headers['PHP_AUTH_USER'], $headers['PHP_AUTH_PW']) = $exploded;
71:                 }
72:             }
73:         }
74: 
75:         // PHP_AUTH_USER/PHP_AUTH_PW
76:         if (isset($headers['PHP_AUTH_USER'])) {
77:             $headers['AUTHORIZATION'] = 'Basic '.base64_encode($headers['PHP_AUTH_USER'].':'.$headers['PHP_AUTH_PW']);
78:         }
79: 
80:         return $headers;
81:     }
82: }
83: