Request.php

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<?php
namespace Elgg\Http;

use Symfony\Component\HttpFoundation\Request as SymfonyRequest;
use Symfony\Component\HttpFoundation\ParameterBag;
use Symfony\Component\HttpFoundation\FileBag;
use Symfony\Component\HttpFoundation\ServerBag;
use Symfony\Component\HttpFoundation\HeaderBag;

class Request extends SymfonyRequest {

    public function initialize(array $query = array(), array $request = array(), array $attributes = array(),
            array $cookies = array(), array $files = array(), array $server = array(), $content = null) {
        $this->request = new ParameterBag($this->stripSlashesIfMagicQuotes($request));
        $this->query = new ParameterBag($this->stripSlashesIfMagicQuotes($query));
        $this->attributes = new ParameterBag($attributes);
        $this->cookies = new ParameterBag($this->stripSlashesIfMagicQuotes($cookies));
        $this->files = new FileBag($files);
        $this->server = new ServerBag($server);
        $this->headers = new HeaderBag($this->server->getHeaders());

        $this->content = $content;
        $this->languages = null;
        $this->charsets = null;
        $this->encodings = null;
        $this->acceptableContentTypes = null;
        $this->pathInfo = null;
        $this->requestUri = null;
        $this->baseUrl = null;
        $this->basePath = null;
        $this->method = null;
        $this->format = null;
    }

    public function getUrlSegments() {
        $path = trim($this->query->get('__elgg_uri'), '/');
        if (!$path) {
            return array();
        }

        return explode('/', $path);
    }

    public function getFirstUrlSegment() {
        $segments = $this->getUrlSegments();
        if ($segments) {
            return array_shift($segments);
        } else {
            return '';
        }
    }

    public function getClientIp() {
        $ip = parent::getClientIp();

        if ($ip == $this->server->get('REMOTE_ADDR')) {
            // try one more
            $ip_addresses = $this->server->get('HTTP_X_REAL_IP');
            if ($ip_addresses) {
                return array_pop(explode(',', $ip_addresses));
            }
        }

        return $ip;
    }

    protected function stripSlashesIfMagicQuotes($data) {
        if (get_magic_quotes_gpc()) {
            return _elgg_stripslashes_deep($data);
        } else {
            return $data;
        }
    }
}