vendor/zendframework/zend-diactoros/src/functions/normalize_server.php

   1 <?php
   2 /**
   3  * @see       https://github.com/zendframework/zend-diactoros for the canonical source repository
   4  * @copyright Copyright (c) 2018 Zend Technologies USA Inc. (https://www.zend.com)
   5  * @license   https://github.com/zendframework/zend-diactoros/blob/master/LICENSE.md New BSD License
   6  */
   7
   8 namespace Zend\Diactoros;
   9
  10 use function is_callable;
  11
  12 /**
  13  * Marshal the $_SERVER array
  14  *
  15  * Pre-processes and returns the $_SERVER superglobal. In particularly, it
  16  * attempts to detect the Authorization header, which is often not aggregated
  17  * correctly under various SAPI/httpd combinations.
  18  *
  19  * @param array $server
  20  * @param null|callable $apacheRequestHeaderCallback Callback that can be used to
  21  *     retrieve Apache request headers. This defaults to
  22  *     `apache_request_headers` under the Apache mod_php.
  23  * @return array Either $server verbatim, or with an added HTTP_AUTHORIZATION header.
  24  */
  25 function normalizeServer(array $server, callable $apacheRequestHeaderCallback = null)
  26 {
  27     if (null === $apacheRequestHeaderCallback && is_callable('apache_request_headers')) {
  28         $apacheRequestHeaderCallback = 'apache_request_headers';
  29     }
  30
  31     // If the HTTP_AUTHORIZATION value is already set, or the callback is not
  32     // callable, we return verbatim
  33     if (isset($server['HTTP_AUTHORIZATION'])
  34         || ! is_callable($apacheRequestHeaderCallback)
  35     ) {
  36         return $server;
  37     }
  38
  39     $apacheRequestHeaders = $apacheRequestHeaderCallback();
  40     if (isset($apacheRequestHeaders['Authorization'])) {
  41         $server['HTTP_AUTHORIZATION'] = $apacheRequestHeaders['Authorization'];
  42         return $server;
  43     }
  44
  45     if (isset($apacheRequestHeaders['authorization'])) {
  46         $server['HTTP_AUTHORIZATION'] = $apacheRequestHeaders['authorization'];
  47         return $server;
  48     }
  49
  50     return $server;
  51 }