static void preconnectIfNeeded(
const LinkRelAttribute& relAttribute,
const KURL& href,
Document& document,
const CrossOriginAttributeValue crossOrigin,
const NetworkHintsInterface& networkHintsInterface,
LinkCaller caller) {
if (relAttribute.isPreconnect() && href.isValid() &&
href.protocolIsInHTTPFamily()) {
UseCounter::count(document, UseCounter::LinkRelPreconnect);
if (caller == LinkCalledFromHeader)
UseCounter::count(document, UseCounter::LinkHeaderPreconnect);
Settings* settings = document.settings();
if (settings && settings->logDnsPrefetchAndPreconnect()) {
document.addConsoleMessage(ConsoleMessage::create(
OtherMessageSource, DebugMessageLevel,
String("Preconnect triggered for ") + href.getString()));
if (crossOrigin != CrossOriginAttributeNotSet) {
document.addConsoleMessage(ConsoleMessage::create(
OtherMessageSource, DebugMessageLevel,
String("Preconnect CORS setting is ") +
String((crossOrigin == CrossOriginAttributeAnonymous)
? "anonymous"
: "use-credentials")));
}
}
networkHintsInterface.preconnectHost(href, crossOrigin);
}
}
static void preconnectHost(PreloadRequest* request, const NetworkHintsInterface& networkHintsInterface)
{
ASSERT(request);
ASSERT(request->isPreconnect());
KURL host(request->baseURL(), request->resourceURL());
if (!host.isValid() || !host.protocolIsInHTTPFamily())
return;
networkHintsInterface.preconnectHost(host, request->crossOrigin());
}