HttpRequest.php

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<?php
namespace TYPO3\CMS\Core\Http;

require_once('HTTP/Request2.php');

class HttpRequest extends \HTTP_Request2 {

    public function __construct($url = NULL, $method = self::METHOD_GET, array $config = array()) {
        parent::__construct($url, $method);
        $this->setConfiguration($config);
    }

    public function setConfiguration(array $config = array()) {
        // set a branded user-agent
        $this->setHeader('user-agent', $GLOBALS['TYPO3_CONF_VARS']['HTTP']['userAgent']);
        $default = array(
            'adapter' => $GLOBALS['TYPO3_CONF_VARS']['HTTP']['adapter'],
            'connect_timeout' => $GLOBALS['TYPO3_CONF_VARS']['HTTP']['connect_timeout'],
            'timeout' => $GLOBALS['TYPO3_CONF_VARS']['HTTP']['timeout'],
            'protocol_version' => $GLOBALS['TYPO3_CONF_VARS']['HTTP']['protocol_version'],
            'follow_redirects' => (bool) $GLOBALS['TYPO3_CONF_VARS']['HTTP']['follow_redirects'],
            'max_redirects' => $GLOBALS['TYPO3_CONF_VARS']['HTTP']['max_redirects'],
            'strict_redirects' => (bool) $GLOBALS['TYPO3_CONF_VARS']['HTTP']['strict_redirects'],
            'proxy_host' => $GLOBALS['TYPO3_CONF_VARS']['HTTP']['proxy_host'],
            'proxy_port' => $GLOBALS['TYPO3_CONF_VARS']['HTTP']['proxy_port'],
            'proxy_user' => $GLOBALS['TYPO3_CONF_VARS']['HTTP']['proxy_user'],
            'proxy_password' => $GLOBALS['TYPO3_CONF_VARS']['HTTP']['proxy_password'],
            'proxy_auth_scheme' => $GLOBALS['TYPO3_CONF_VARS']['HTTP']['proxy_auth_scheme'],
            'ssl_verify_peer' => (bool) $GLOBALS['TYPO3_CONF_VARS']['HTTP']['ssl_verify_peer'],
            'ssl_verify_host' => (bool) $GLOBALS['TYPO3_CONF_VARS']['HTTP']['ssl_verify_host'],
            // we have to deal with Install Tool limitations and set this to NULL if it is empty
            'ssl_cafile' => $GLOBALS['TYPO3_CONF_VARS']['HTTP']['ssl_cafile'] ?: NULL,
            'ssl_capath' => $GLOBALS['TYPO3_CONF_VARS']['HTTP']['ssl_capath'] ?: NULL,
            'ssl_local_cert' => $GLOBALS['TYPO3_CONF_VARS']['HTTP']['ssl_local_cert'] ?: NULL,
            'ssl_passphrase' => $GLOBALS['TYPO3_CONF_VARS']['HTTP']['ssl_passphrase'] ?: NULL
        );
        $configuration = array_merge($default, $config);
        $this->setConfig($configuration);
    }

    public function download($directory, $filename = '') {
        $isAttached = FALSE;
        // Do not store the body in memory
        $this->setConfig('store_body', FALSE);
        // Check if we already attached an instance of download. If so, just reuse it.
        foreach ($this->observers as $observer) {
            if ($observer instanceof \TYPO3\CMS\Core\Http\Observer\Download) {
                $observer->setDirectory($directory);
                $observer->setFilename($filename);
                $isAttached = TRUE;
            }
        }
        if (!$isAttached) {
            $observer = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance('TYPO3\\CMS\\Core\\Http\\Observer\\Download', $directory, $filename);
            $this->attach($observer);
        }
        return $this->send();
    }

}