/**
* Reads out a file, and echos the content to the client.
*
* @param File $file File object
* @param array $range The range to read out of the file.
* @return bool True is whole file is echoed successfully or false if client connection is lost in between
*/
protected function _sendFile($file, $range)
{
$compress = $this->outputCompressed();
$file->open('rb');
$end = $start = false;
if ($range) {
list($start, $end) = $range;
}
if ($start !== false) {
$file->offset($start);
}
$bufferSize = 8192;
set_time_limit(0);
session_write_close();
while (!feof($file->handle)) {
if (!$this->_isActive()) {
$file->close();
return false;
}
$offset = $file->offset();
if ($end && $offset >= $end) {
break;
}
if ($end && $offset + $bufferSize >= $end) {
$bufferSize = $end - $offset + 1;
}
echo fread($file->handle, $bufferSize);
if (!$compress) {
$this->_flushBuffer();
}
}
$file->close();
return true;
}