/**
* @inheritdoc
*/
public function flush()
{
$this->header_output->set('Content-Type', $this->getContentType())->flush();
echo $this->get(self::CONTENT);
}
/**
* @inheritdoc
*/
public function flush()
{
$file_path = $this->get(self::FILE);
if (!is_file($file_path)) {
throw new NotFoundException("File '{$file_path}' does not exist.");
}
$file_size = filesize($file_path);
$this->header_output->set('Content-Type', $this->getContentType());
$this->header_output->set('Content-Length', $file_size);
$this->header_output->set('Content-Disposition', 'attachment; filename="' . basename($file_path) . '"');
$this->header_output->set('Accept-Ranges', 'bytes');
$range = $this->request_info->HTTP_RANGE;
if (!$range) {
$this->header_output->flush();
readfile($file_path);
return;
}
list($name, $range) = explode('=', $range);
$range = explode(',', $range)[0];
$range_arr = explode('-', $range);
if (strtolower(trim($name)) !== 'bytes' or count($range_arr) !== 2) {
throw new BadRequestException("Http header 'HTTP_RANGE' must be like 'bytes=xx-xxx'.");
}
if ($range_arr[0] === '') {
$end = $file_size - 1;
$start = $end - intval($range_arr[1]);
} elseif ($range_arr[1] === '') {
$end = $file_size - 1;
$start = intval($range_arr[0]);
} else {
$end = intval($range_arr[1]);
$start = intval($range_arr[0]);
if (!$end) {
$end = $file_size - 1;
}
}
if ($start > $end) {
throw new BadRequestException("'HTTP_RANGE: bytes=start-end', 'start' must be less than 'end'.");
}
$length = $end - $start + 1;
if ($length >= $file_size) {
$this->header_output->flush();
readfile($file_path);
return;
}
$this->header_output->setHttpStatus(206);
$this->header_output->set('Content-Range', "bytes {$start}-{$end}/{$file_size}");
$this->header_output->flush();
try {
$fp = fopen($file_path, 'r');
if ($start) {
fseek($fp, $start);
}
while ($length) {
$read = $length > 8192 ? 8192 : $length;
$length -= $read;
print fread($fp, $read);
}
fclose($fp);
} catch (Exception $e) {
throw new ForbiddenException("Could not read the file '{$file_path}' !!!", 403, $e);
}
}
