/**
* Sends a standard headers for file download
* @param BaseFileDownload $file File
* @param BaseDownloader $downloader Downloader of the file
*/
protected function sendStandardFileHeaders(BaseFileDownload $file, BaseDownloader $downloader = null)
{
$res = \Nette\Environment::getHttpResponse();
$req = \Nette\Environment::getHttpRequest();
//FDTools::clearHeaders($res); // Voláno už v FileDownload.php
$res->setContentType($file->mimeType, "UTF-8");
$res->setHeader("X-File-Downloader", "File Downloader (http://filedownloader.projekty.mujserver.net)");
if ($downloader !== null) {
$res->setHeader("X-FileDownloader-Actual-Script", $downloader->getReflection()->name);
}
$res->setHeader('Pragma', 'public');
// Fix for IE - Content-Disposition
$res->setHeader('Content-Disposition', $file->getContentDisposition() . '; filename="' . FDTools::getContentDispositionHeaderData($file->transferFileName) . '"');
$res->setHeader('Content-Description', 'File Transfer');
$res->setHeader('Content-Transfer-Encoding', 'binary');
$res->setHeader('Connection', 'close');
$res->setHeader('ETag', FDTools::getETag($file->sourceFile));
$res->setHeader('Content-Length', FDTools::filesize($file->sourceFile));
// Cache control
if ($file->enableBrowserCache) {
$this->setupCacheHeaders($file);
} else {
$this->setupNonCacheHeaders($file);
}
}
/**
* Is this downloader compatible?
* @param BaseFileDownload $file
* @return bool TRUE if is compatible; FALSE if not
*/
function isCompatible(BaseFileDownload $file)
{
if (self::$checkEnvironmentSettings === true) {
if (FDTools::setTimeLimit(0) !== true) {
return false;
}
}
return true;
}
/**
* Download the file!
* @param IDownloader $downloader
*/
function download(IDownloader $downloader = null)
{
$req = \Nette\Environment::getHttpRequest();
$res = \Nette\Environment::getHttpResponse();
if (self::$closeSession) {
$ses = \Nette\Environment::getSession();
if ($ses->isStarted()) {
$ses->close();
}
}
if ($this->getContentDisposition() == "inline" and is_null($this->enableBrowserCache)) {
$this->enableBrowserCache = true;
} else {
$this->enableBrowserCache = false;
}
if ($downloader === null) {
$downloaders = self::getFileDownloaders();
} else {
$downloaders = array($downloader);
}
if (count($downloaders) <= 0) {
throw new \Nette\InvalidStateException("There is no registred downloader!");
}
krsort($downloaders);
$lastException = null;
foreach ($downloaders as $downloader) {
if ($downloader instanceof IDownloader and $downloader->isCompatible($this)) {
try {
FDTools::clearHeaders($res);
// Delete all headers
$this->transferredBytes = 0;
$this->onBeforeDownloaderStarts($this, $downloader);
$downloader->download($this);
// Start download
$this->onComplete($this, $downloader);
die;
// If all gone ok -> die
} catch (FDSkypeMeException $e) {
if ($res->isSent()) {
throw new \Nette\InvalidStateException("Headers are already sent! Can't skip downloader.");
} else {
continue;
}
} catch (Exception $e) {
if (!$res->isSent()) {
FDTools::clearHeaders($res);
}
throw $e;
}
}
}
// Pokud se soubor nějakým způsobem odešle - toto už se nespustí
if ($lastException instanceof Exception) {
FDTools::clearHeaders(\Nette\Environment::getHttpResponse(), TRUE);
throw $lastException;
}
if ($req->getHeader("Range")) {
FDTools::_HTTPError(416);
} else {
$res->setCode(500);
}
throw new \Nette\InvalidStateException("There is no compatible downloader (all downloader returns downloader->isComplatible()=false or was skipped)!");
}