TrackManiaControl/application/core/Files/AsynchronousFileReader.php
2014-05-01 17:35:14 +02:00

115 lines
2.8 KiB
PHP

<?php
namespace ManiaControl\Files;
use ManiaControl\Callbacks\TimerListener;
use ManiaControl\ManiaControl;
/**
* Asynchronous File Reader
*
* @author kremsy & steeffeen
*/
class AsynchronousFileReader implements TimerListener {
/**
* Constants
*/
const TIMEOUT_ERROR = 'Timed out while reading data';
const RESPONSE_ERROR = 'Connection or response error';
const NO_DATA_ERROR = 'No data returned';
const INVALID_RESULT_ERROR = 'Invalid Result';
const SOCKET_TIMEOUT = 10;
/**
* Private Properties
*/
private $sockets = array();
private $maniaControl = null;
/**
* Construct
*
* @param ManiaControl $maniaControl
*/
public function __construct(ManiaControl $maniaControl) {
$this->maniaControl = $maniaControl;
}
/**
* Appends the Data
*/
public function appendData() {
foreach($this->sockets as $key => &$socket) {
/** @var SocketStructure $socket */
$socket->streamBuffer .= fread($socket->socket, 4096);
if (feof($socket->socket) || time() > ($socket->creationTime + self::SOCKET_TIMEOUT)) {
fclose($socket->socket);
unset($this->sockets[$key]);
$result = array();
$error = 0;
if (time() > ($socket->creationTime + self::SOCKET_TIMEOUT)) {
$error = self::TIMEOUT_ERROR;
} else if (substr($socket->streamBuffer, 9, 3) != "200") {
$error = self::RESPONSE_ERROR;
} else if ($socket->streamBuffer == '') {
$error = self::NO_DATA_ERROR;
} else {
$result = explode("\r\n\r\n", $socket->streamBuffer, 2);
if (count($result) < 2) {
$error = self::INVALID_RESULT_ERROR;
}
}
call_user_func($socket->function, $result[1], $error);
}
}
}
/**
* Load a remote file
*
* @param string $url
* @param $function
* @param string $contentType
* @return bool
*/
public function loadFile($url, $function, $contentType = 'UTF-8') {
if (!is_callable($function)) {
$this->maniaControl->log("Function is not callable");
return false;
}
if (!$url) {
return null;
}
$urlData = parse_url($url);
$port = (isset($urlData['port']) ? $urlData['port'] : 80);
$urlQuery = isset($urlData['query']) ? "?" . $urlData['query'] : "";
$socket = @fsockopen($urlData['host'], $port, $errno, $errstr, 4);
if (!$socket) {
return false;
}
$query = 'GET ' . $urlData['path'] . $urlQuery . ' HTTP/1.0' . PHP_EOL;
$query .= 'Host: ' . $urlData['host'] . PHP_EOL;
$query .= 'Content-Type: ' . $contentType . PHP_EOL;
$query .= 'User-Agent: ManiaControl v' . ManiaControl::VERSION . PHP_EOL;
$query .= PHP_EOL;
fwrite($socket, $query);
$success = stream_set_blocking($socket, 0);
if (!$success) {
return false;
}
$socketStructure = new SocketStructure($url, $socket, $function);
array_push($this->sockets, $socketStructure);
return true;
}
}