TrackManiaControl/application/core/Files/AsynchronousFileReader.php
2014-07-05 18:02:27 +02:00

164 lines
4.3 KiB
PHP

<?php
namespace ManiaControl\Files;
use cURL\Event;
use cURL\Exception;
use cURL\Request;
use ManiaControl\ManiaControl;
/**
* Asynchronous File Reader
*
* @author ManiaControl Team <mail@maniacontrol.com>
* @copyright 2014 ManiaControl Team
* @license http://www.gnu.org/licenses/ GNU General Public License, Version 3
*/
class AsynchronousFileReader {
/*
* Constants
*/
const CONTENT_TYPE_JSON = 'application/json';
/*
* Private Properties
*/
private $maniaControl = null;
/** @var Request[] $requests */
private $requests = array();
/**
* Construct a new Asynchronous File Reader Instance
*
* @param ManiaControl $maniaControl
*/
public function __construct(ManiaControl $maniaControl) {
$this->maniaControl = $maniaControl;
}
/**
* Append available Data of active Requests
*/
public function appendData() {
foreach ($this->requests as $key => $request) {
try {
if ($request->socketPerform()) {
$request->socketSelect();
}
} catch (Exception $e) {
if ($e->getMessage() === 'Cannot perform if there are no requests in queue.') {
unset($this->requests[$key]);
} else {
throw $e;
}
}
}
}
/**
* Load a Remote File
*
* @param string $url
* @param callable $function
* @param string $contentType
* @param int $keepAlive
*/
public function loadFile($url, callable $function, $contentType = 'UTF-8', $keepAlive = 0) {
$headers = array();
array_push($headers, 'Content-Type: ' . $contentType);
if ($keepAlive) {
array_push($headers, 'Keep-Alive: ' . $keepAlive);
array_push($headers, 'Connection: Keep-Alive');
}
$request = $this->newRequest($url);
$request->getOptions()
->set(CURLOPT_AUTOREFERER, true) // accept link reference
->set(CURLOPT_HTTPHEADER, $headers); // headers
$request->addListener('complete', function (Event $event) use (&$function) {
$error = null;
$content = null;
if ($event->response->hasError()) {
$error = $event->response->getError()
->getMessage();
} else {
$content = $event->response->getContent();
}
call_user_func($function, $content, $error);
});
$this->addRequest($request);
}
/**
* Create a new cURL Request for the given URL
*
* @param string $url
* @return Request
*/
protected function newRequest($url) {
$request = new Request($url);
$request->getOptions()
->set(CURLOPT_TIMEOUT, 60)
->set(CURLOPT_HEADER, false) // don't display response header
->set(CURLOPT_CRLF, true) // linux line feed
->set(CURLOPT_ENCODING, '') // accept encoding
->set(CURLOPT_USERAGENT, 'ManiaControl v' . ManiaControl::VERSION) // user-agent
->set(CURLOPT_RETURNTRANSFER, true); // return instead of output content
return $request;
}
/**
* Add a Request to the queue
*
* @param Request $request
*/
protected function addRequest(Request $request) {
array_push($this->requests, $request);
}
/**
* Send Data via POST Method
*
* @param string $url
* @param callable $function
* @param string $content
* @param bool $compression
* @param string $contentType
*/
public function postData($url, callable $function, $content, $compression = false,
$contentType = 'text/xml; charset=UTF-8;') {
$headers = array();
array_push($headers, 'Content-Type: ' . $contentType);
array_push($headers, 'Keep-Alive: 600');
array_push($headers, 'Connection: Keep-Alive');
$content = str_replace(array("\r", "\n"), '', $content);
if ($compression) {
$content = zlib_encode($content, 31);
array_push($headers, 'Content-Encoding: gzip');
}
$request = $this->newRequest($url);
$request->getOptions()
->set(CURLOPT_POST, true) // post method
->set(CURLOPT_POSTFIELDS, $content) // post content field
->set(CURLOPT_HTTPHEADER, $headers); // headers
$request->addListener('complete', function (Event $event) use (&$function) {
$error = null;
$content = null;
if ($event->response->hasError()) {
$error = $event->response->getError()
->getMessage();
} else {
$content = $event->response->getContent();
}
call_user_func($function, $content, $error);
});
$this->addRequest($request);
}
}