public function downloadNumBytes($numBytes)
{
if ($this->bufferFresh) {
rewind($this->buffer);
$this->bufferFresh = false;
}
// TODO: Should we be checking for fread errors here?
$output = fread($this->buffer, $numBytes);
if (strlen($output) == $numBytes) {
return $output;
}
$this->initEmptyBuffer();
$bytesLeft = $numBytes - strlen($output);
while (strlen($output) < $numBytes && $this->advanceChunks()) {
$bytesLeft = $numBytes - strlen($output);
$output .= substr($this->chunksIterator->current()->data->getData(), 0, $bytesLeft);
}
if (!$this->iteratorEmpty && $this->file->length > 0 && $bytesLeft < strlen($this->chunksIterator->current()->data->getData())) {
fwrite($this->buffer, substr($this->chunksIterator->current()->data->getData(), $bytesLeft));
$this->bufferEmpty = false;
}
return $output;
}