/**
* Analyzes this response, considering the given request and makes additions
* or removes certain headers in order to make the response compliant to
* RFC 2616 and related standards.
*
* It is recommended to call this method before the response is sent and Flow
* does so by default in its built-in HTTP request handler.
*
* @param Request $request The corresponding request
* @return void
* @api
*/
public function makeStandardsCompliant(Request $request)
{
if ($request->hasHeader('If-Modified-Since') && $this->headers->has('Last-Modified') && $this->statusCode === 200) {
$ifModifiedSinceDate = $request->getHeader('If-Modified-Since');
$lastModifiedDate = $this->headers->get('Last-Modified');
if ($lastModifiedDate <= $ifModifiedSinceDate) {
$this->setStatus(304);
$this->content = '';
}
} elseif ($request->hasHeader('If-Unmodified-Since') && $this->headers->has('Last-Modified') && ($this->statusCode >= 200 && $this->statusCode <= 299 || $this->statusCode === 412)) {
$unmodifiedSinceDate = $request->getHeader('If-Unmodified-Since');
$lastModifiedDate = $this->headers->get('Last-Modified');
if ($lastModifiedDate > $unmodifiedSinceDate) {
$this->setStatus(412);
}
}
if (in_array($this->statusCode, [100, 101, 204, 304])) {
$this->content = '';
}
if ($this->headers->getCacheControlDirective('no-cache') !== null || $this->headers->has('Expires')) {
$this->headers->removeCacheControlDirective('max-age');
}
if ($request->getMethod() === 'HEAD') {
if (!$this->headers->has('Content-Length')) {
$this->headers->set('Content-Length', strlen($this->content));
}
$this->content = '';
}
if (!$this->headers->has('Content-Length')) {
$this->headers->set('Content-Length', strlen($this->content));
}
if ($this->headers->has('Transfer-Encoding')) {
$this->headers->remove('Content-Length');
}
}
/**
* Generates the Matching cache identifier for the given Request
*
* @param Request $httpRequest
* @return string
*/
protected function buildRouteCacheIdentifier(Request $httpRequest)
{
return md5(sprintf('%s_%s_%s', $httpRequest->getUri()->getHost(), $httpRequest->getRelativePath(), $httpRequest->getMethod()));
}
/**
* Checks whether $routePath corresponds to this Route.
* If all Route Parts match successfully TRUE is returned and
* $this->matchResults contains an array combining Route default values and
* calculated matchResults from the individual Route Parts.
*
* @param Request $httpRequest the HTTP request to match
* @return boolean TRUE if this Route corresponds to the given $routePath, otherwise FALSE
* @throws InvalidRoutePartValueException
* @see getMatchResults()
*/
public function matches(Request $httpRequest)
{
$routePath = $httpRequest->getRelativePath();
$this->matchResults = null;
if ($this->uriPattern === null) {
return false;
}
if (!$this->isParsed) {
$this->parse();
}
if ($this->hasHttpMethodConstraints() && !in_array($httpRequest->getMethod(), $this->httpMethods)) {
return false;
}
$matchResults = [];
$routePath = trim($routePath, '/');
$skipOptionalParts = false;
$optionalPartCount = 0;
/** @var $routePart RoutePartInterface */
foreach ($this->routeParts as $routePart) {
if ($routePart->isOptional()) {
$optionalPartCount++;
if ($skipOptionalParts) {
if ($routePart->getDefaultValue() === null) {
return false;
}
continue;
}
} else {
$optionalPartCount = 0;
$skipOptionalParts = false;
}
if ($routePart->match($routePath) !== true) {
if ($routePart->isOptional() && $optionalPartCount === 1) {
if ($routePart->getDefaultValue() === null) {
return false;
}
$skipOptionalParts = true;
} else {
return false;
}
}
$routePartValue = $routePart->getValue();
if ($routePartValue !== null) {
if ($this->containsObject($routePartValue)) {
throw new InvalidRoutePartValueException('RoutePart::getValue() must only return simple types after calling RoutePart::match(). RoutePart "' . get_class($routePart) . '" returned one or more objects in Route "' . $this->getName() . '".');
}
$matchResults = Arrays::setValueByPath($matchResults, $routePart->getName(), $routePartValue);
}
}
if (strlen($routePath) > 0) {
return false;
}
$this->matchResults = Arrays::arrayMergeRecursiveOverrule($this->defaults, $matchResults);
return true;
}
/**
* Sends the given HTTP request
*
* @param Http\Request $request
* @return Http\Response The response or FALSE
* @api
* @throws Http\Exception
* @throws CurlEngineException
*/
public function sendRequest(Http\Request $request)
{
if (!extension_loaded('curl')) {
throw new Http\Exception('CurlEngine requires the PHP CURL extension to be installed and loaded.', 1346319808);
}
$requestUri = $request->getUri();
$curlHandle = curl_init((string) $requestUri);
curl_setopt_array($curlHandle, $this->options);
// Send an empty Expect header in order to avoid chunked data transfer (which we can't handle yet).
// If we don't set this, cURL will set "Expect: 100-continue" for requests larger than 1024 bytes.
curl_setopt($curlHandle, CURLOPT_HTTPHEADER, ['Expect:']);
// If the content is a stream resource, use cURL's INFILE feature to stream it
$content = $request->getContent();
if (is_resource($content)) {
curl_setopt_array($curlHandle, [CURLOPT_INFILE => $content, CURLOPT_INFILESIZE => $request->getHeader('Content-Length')]);
}
switch ($request->getMethod()) {
case 'GET':
if ($request->getContent()) {
// workaround because else the request would implicitly fall into POST:
curl_setopt($curlHandle, CURLOPT_CUSTOMREQUEST, 'GET');
if (!is_resource($content)) {
curl_setopt($curlHandle, CURLOPT_POSTFIELDS, $content);
}
}
break;
case 'POST':
curl_setopt($curlHandle, CURLOPT_POST, true);
if (!is_resource($content)) {
$body = $content !== '' ? $content : http_build_query($request->getArguments());
curl_setopt($curlHandle, CURLOPT_POSTFIELDS, $body);
}
break;
case 'PUT':
curl_setopt($curlHandle, CURLOPT_PUT, true);
if (!is_resource($content) && $content !== '') {
$inFileHandler = fopen('php://temp', 'r+');
fwrite($inFileHandler, $request->getContent());
rewind($inFileHandler);
curl_setopt_array($curlHandle, [CURLOPT_INFILE => $inFileHandler, CURLOPT_INFILESIZE => strlen($request->getContent())]);
}
break;
default:
if (!is_resource($content)) {
$body = $content !== '' ? $content : http_build_query($request->getArguments());
curl_setopt($curlHandle, CURLOPT_POSTFIELDS, $body);
}
curl_setopt($curlHandle, CURLOPT_CUSTOMREQUEST, $request->getMethod());
}
$preparedHeaders = [];
foreach ($request->getHeaders()->getAll() as $fieldName => $values) {
foreach ($values as $value) {
$preparedHeaders[] = $fieldName . ': ' . $value;
}
}
curl_setopt($curlHandle, CURLOPT_HTTPHEADER, $preparedHeaders);
// curl_setopt($curlHandle, CURLOPT_PROTOCOLS, CURLPROTO_HTTP && CURLPROTO_HTTPS);
// CURLOPT_UPLOAD
if ($requestUri->getPort() !== null) {
curl_setopt($curlHandle, CURLOPT_PORT, $requestUri->getPort());
}
// CURLOPT_COOKIE
$curlResult = curl_exec($curlHandle);
if ($curlResult === false) {
throw new CurlEngineException(sprintf('cURL reported error code %s with message "%s". Last requested URL was "%s" (%s).', curl_errno($curlHandle), curl_error($curlHandle), curl_getinfo($curlHandle, CURLINFO_EFFECTIVE_URL), $request->getMethod()), 1338906040);
} elseif (strlen($curlResult) === 0) {
return false;
}
curl_close($curlHandle);
$response = Http\Response::createFromRaw($curlResult);
if ($response->getStatusCode() === 100) {
$response = Http\Response::createFromRaw($response->getContent(), $response);
}
return $response;
}
