private function addContentLength(puzzle_message_RequestInterface $request, puzzle_stream_StreamInterface $body)
{
// Set the Content-Length header if it can be determined, and never
// send a Transfer-Encoding: chunked and Content-Length header in
// the same request.
if ($request->hasHeader('Content-Length')) {
// Remove transfer-encoding if content-length is set.
$request->removeHeader('Transfer-Encoding');
return;
}
if ($request->hasHeader('Transfer-Encoding')) {
return;
}
if (null !== ($size = $body->getSize())) {
$request->setHeader('Content-Length', $size)->removeHeader('Transfer-Encoding');
} elseif ('1.1' == $request->getProtocolVersion()) {
// Use chunked Transfer-Encoding if there is no determinable
// content-length header and we're using HTTP/1.1.
$request->setHeader('Transfer-Encoding', 'chunked')->removeHeader('Content-Length');
}
}
