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<?php
/**
* Nextcloud - News
*
* This file is licensed under the Affero General Public License version 3 or
* later. See the COPYING file.
*
* @author Alessandro Cosentino <cosenal@gmail.com>
* @author Bernhard Posselt <dev@bernhard-posselt.com>
* @copyright 2012 Alessandro Cosentino
* @copyright 2012-2014 Bernhard Posselt
*/
namespace OCA\News\Config;
use FeedIo\Adapter\ClientInterface;
use \GuzzleHttp\Client;
use OCA\News\AppInfo\Application;
use OCA\News\Fetcher\Client\FeedIoClient;
use OCP\IConfig;
/**
* Class FetcherConfig
*
* @package OCA\News\Config
*/
class FetcherConfig
{
/**
* Timeout before the client should abort.
* @var string
*/
protected $client_timeout;
/**
* Configuration for an HTTP proxy.
* @var string
*/
protected $proxy;
/**
* Amount of allowed redirects.
* @var string
*/
protected $redirects;
/**
* User agent for the client.
* @var string
*/
const DEFAULT_USER_AGENT = 'NextCloud-News/1.0';
/**
* Acccept header for the client.
* @var string
*/
const DEFAULT_ACCEPT = 'application/rss+xml, application/rdf+xml;q=0.8, ' .
'application/atom+xml;q=0.6, application/xml;q=0.4, ' .
'text/xml;q=0.4, */*;q=0.2';
/**
* FetcherConfig constructor.
*
* @param IConfig $config
*/
public function __construct(IConfig $config)
{
$this->client_timeout = $config->getAppValue(
Application::NAME,
'feedFetcherTimeout',
Application::DEFAULT_SETTINGS['feedFetcherTimeout']
);
$this->redirects = $config->getAppValue(
Application::NAME,
'maxRedirects',
Application::DEFAULT_SETTINGS['maxRedirects']
);
$proxy = $config->getSystemValue('proxy', null);
if (is_null($proxy)) {
return $this;
}
$url = new \Net_URL2($proxy);
$creds = $config->getSystemValue('proxyuserpwd', null);
if ($creds !== null) {
$auth = explode(':', $creds, 2);
$url->setUserinfo($auth[0], $auth[1]);
}
$this->proxy = $url->getNormalizedURL();
return $this;
}
/**
* Checks for available encoding options
*
* @return String list of supported encoding types
*/
public function checkEncoding()
{
$supportedEncoding = [];
// check curl features
$curl_features = curl_version()["features"];
$bitfields = array('CURL_VERSION_LIBZ' => ['gzip', 'deflate'], 'CURL_VERSION_BROTLI' => ['br']);
foreach ($bitfields as $feature => $header) {
// checking available features via the 'features' bitmask and adding available types to the list
if (defined($feature) && $curl_features & constant($feature)) {
$supportedEncoding = array_merge($supportedEncoding, $header);
}
}
return implode(", ", $supportedEncoding);
}
/**
* Configure a guzzle client
*
* @return ClientInterface Client to guzzle.
*/
public function getClient(): ClientInterface
{
$config = [
'timeout' => $this->client_timeout,
'headers' => [
'User-Agent' => static::DEFAULT_USER_AGENT,
'Accept' => static::DEFAULT_ACCEPT,
'Accept-Encoding' => $this->checkEncoding()
],
];
if (!is_null($this->proxy)) {
$config['proxy'] = $this->proxy;
}
if (!is_null($this->redirects)) {
$config['redirect.max'] = $this->redirects;
}
$client = new Client($config);
return new FeedIoClient($client);
}
}
|
