Pivasic\Bundle\Common\Bag\HeaderBag

Complexity

Total Complexity

16

Size/Duplication

Total Lines	78
Duplicated Lines	0 %

Coupling/Cohesion

Components	0
Dependencies	1

Importance

Changes

0

1 Method

Rating	Name	Duplication	Size	Complexity
D	__construct()	0	72	16

<?php
/**
 * @license MIT
 */
namespace Pivasic\Bundle\Common\Bag;

/**
 * Class HeaderBag
 * @package Pivasic\Bundle\Common\Bag
 */
class HeaderBag extends ValueBag
{
    /**
     * Gets the HTTP headers.
     */
    public function __construct()
    {
        $headers = [];
        $server = filter_input_array(INPUT_SERVER);

        $contentHeaders = ['CONTENT_LENGTH' => true, 'CONTENT_MD5' => true, 'CONTENT_TYPE' => true];
        foreach ($server 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($server['PHP_AUTH_USER'])) {
            $headers['PHP_AUTH_USER'] = $server['PHP_AUTH_USER'];
            $headers['PHP_AUTH_PW'] = isset($server['PHP_AUTH_PW']) ? $server['PHP_AUTH_PW'] : '';
        } else {
            /*
             * php-cgi under Apache does not pass HTTP Basic user/pass to PHP by default
             * For this workaround to work, add these lines to your .htaccess file:
             * RewriteCond %{HTTP:Authorization} ^(.+)$
             * 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]
             */

            $authorizationHeader = null;
            if (isset($server['HTTP_AUTHORIZATION'])) {
                $authorizationHeader = $server['HTTP_AUTHORIZATION'];
            } elseif (isset($server['REDIRECT_HTTP_AUTHORIZATION'])) {
                $authorizationHeader = $server['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 (count($exploded) == 2) {
                        list($headers['PHP_AUTH_USER'], $headers['PHP_AUTH_PW']) = $exploded;
                    }
                } elseif (empty($server['PHP_AUTH_DIGEST']) && (0 === stripos($authorizationHeader, 'digest '))) {
                    // In some circumstances PHP_AUTH_DIGEST needs to be set
                    $headers['PHP_AUTH_DIGEST'] = $authorizationHeader;
                    $server['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;
                }
            }
        }

        // 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'];
        }

        parent::__construct($headers);
    }
}