private function addExpectHeader(RequestInterface $request, StreamInterface $body)
{
// Determine if the Expect header should be used
if ($request->hasHeader('Expect')) {
return;
}
$expect = $request->getConfig()['expect'];
// Return if disabled or if you're not using HTTP/1.1
if ($expect === false || $request->getProtocolVersion() !== '1.1') {
return;
}
// The expect header is unconditionally enabled
if ($expect === true) {
$request->setHeader('Expect', '100-Continue');
return;
}
// By default, send the expect header when the payload is > 1mb
if ($expect === null) {
$expect = 1048576;
}
// Always add if the body cannot be rewound, the size cannot be
// determined, or the size is greater than the cutoff threshold
$size = $body->getSize();
if ($size === null || $size >= (int) $expect || !$body->isSeekable()) {
$request->setHeader('Expect', '100-Continue');
}
}
/**
* Applies request headers to a request based on the POST state
*
* @param RequestInterface $request Request to update
*/
public function applyRequestHeaders(RequestInterface $request)
{
if ($this->files || $this->forceMultipart) {
$request->setHeader('Content-Type', 'multipart/form-data; boundary=' . $this->getBody()->getBoundary());
} elseif ($this->fields && !$request->hasHeader('Content-Type')) {
$request->setHeader('Content-Type', 'application/x-www-form-urlencoded');
}
if ($size = $this->getSize()) {
$request->setHeader('Content-Length', $size);
}
}
