/**
* {@inheritdoc}
*/
public function prepare(RequestInterface $request)
{
$headers = $this->headers;
if ($this->isInformational() || $this->isEmpty()) {
$this->setContent(NULL);
$headers->remove('Content-Type');
$headers->remove('Content-Length');
} else {
// Content-type based on the Request. The content type should have been
// set in the RestfulFormatter.
// Fix Content-Type
$charset = $this->charset ?: 'UTF-8';
$content_type = $headers->get('Content-Type')->getValueString();
if (stripos($content_type, 'text/') === 0 && stripos($content_type, 'charset') === FALSE) {
// add the charset
$headers->add(HttpHeader::create('Content-Type', $content_type . '; charset=' . $charset));
}
// Fix Content-Length
if ($headers->has('Transfer-Encoding')) {
$headers->remove('Content-Length');
}
if ($request->getMethod() == RequestInterface::METHOD_HEAD) {
// cf. RFC2616 14.13
$length = $headers->get('Content-Length')->getValueString();
$this->setContent(NULL);
if ($length) {
$headers->add(HttpHeader::create('Content-Length', $length));
}
}
}
// Fix protocol
$server_info = $request->getServer();
if ($server_info['SERVER_PROTOCOL'] != 'HTTP/1.0') {
$this->setProtocolVersion('1.1');
}
// Check if we need to send extra expire info headers
if ($this->getProtocolVersion() == '1.0' && $this->headers->get('Cache-Control')->getValueString() == 'no-cache') {
$this->headers->add(HttpHeader::create('pragma', 'no-cache'));
$this->headers->add(HttpHeader::create('expires', -1));
}
$this->ensureIEOverSSLCompatibility($request);
}
