/**
* Check if an HTTP request can be cached by a private local cache.
*
* @static
* @param W3TCG_Google_Http_Request $resp
* @return bool True if the request is cacheable.
* False if the request is uncacheable.
*/
public static function isRequestCacheable(W3TCG_Google_Http_Request $resp)
{
$method = $resp->getRequestMethod();
if (!in_array($method, self::$CACHEABLE_HTTP_METHODS)) {
return false;
}
// Don't cache authorized requests/responses.
// [rfc2616-14.8] When a shared cache receives a request containing an
// Authorization field, it MUST NOT return the corresponding response
// as a reply to any other request...
if ($resp->getRequestHeader("authorization")) {
return false;
}
return true;
}
/**
* @param $meta
* @param $params
* @return array|bool
* @visible for testing
*/
private function process()
{
$postBody = false;
$contentType = false;
$meta = $this->request->getPostBody();
$meta = is_string($meta) ? json_decode($meta, true) : $meta;
$uploadType = $this->getUploadType($meta);
$this->request->setQueryParam('uploadType', $uploadType);
$this->transformToUploadUrl();
$mimeType = $this->mimeType ? $this->mimeType : $this->request->getRequestHeader('content-type');
if (self::UPLOAD_RESUMABLE_TYPE == $uploadType) {
$contentType = $mimeType;
$postBody = is_string($meta) ? $meta : json_encode($meta);
} else {
if (self::UPLOAD_MEDIA_TYPE == $uploadType) {
$contentType = $mimeType;
$postBody = $this->data;
} else {
if (self::UPLOAD_MULTIPART_TYPE == $uploadType) {
// This is a multipart/related upload.
$boundary = $this->boundary ? $this->boundary : mt_rand();
$boundary = str_replace('"', '', $boundary);
$contentType = 'multipart/related; boundary=' . $boundary;
$related = "--{$boundary}\r\n";
$related .= "Content-Type: application/json; charset=UTF-8\r\n";
$related .= "\r\n" . json_encode($meta) . "\r\n";
$related .= "--{$boundary}\r\n";
$related .= "Content-Type: {$mimeType}\r\n";
$related .= "Content-Transfer-Encoding: base64\r\n";
$related .= "\r\n" . base64_encode($this->data) . "\r\n";
$related .= "--{$boundary}--";
$postBody = $related;
}
}
}
$this->request->setPostBody($postBody);
if (isset($contentType) && $contentType) {
$contentTypeHeader['content-type'] = $contentType;
$this->request->setRequestHeaders($contentTypeHeader);
}
}
/**
* @visible for testing
* Process an http request that contains an enclosed entity.
* @param W3TCG_Google_Http_Request $request
* @return W3TCG_Google_Http_Request Processed request with the enclosed entity.
*/
public function processEntityRequest(W3TCG_Google_Http_Request $request)
{
$postBody = $request->getPostBody();
$contentType = $request->getRequestHeader("content-type");
// Set the default content-type as application/x-www-form-urlencoded.
if (false == $contentType) {
$contentType = self::FORM_URLENCODED;
$request->setRequestHeaders(array('content-type' => $contentType));
}
// Force the payload to match the content-type asserted in the header.
if ($contentType == self::FORM_URLENCODED && is_array($postBody)) {
$postBody = http_build_query($postBody, '', '&');
$request->setPostBody($postBody);
}
// Make sure the content-length header is set.
if (!$postBody || is_string($postBody)) {
$postsLength = strlen($postBody);
$request->setRequestHeaders(array('content-length' => $postsLength));
}
return $request;
}
