gecko-dev/netwerk/dns/DNSUtils.cpp

82 строки
2.5 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=4 sw=2 sts=2 et cin: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "DNSUtils.h"
#include "nsContentUtils.h"
#include "nsHttpHandler.h"
#include "nsIHttpChannel.h"
#include "nsIHttpChannelInternal.h"
#include "nsIIOService.h"
#include "mozilla/SyncRunnable.h"
#include "TRRServiceChannel.h"
#include "TRRLoadInfo.h"
namespace mozilla {
namespace net {
static void InitHttpHandler() {
nsresult rv;
nsCOMPtr<nsIIOService> ios = do_GetIOService(&rv);
if (NS_FAILED(rv)) {
return;
}
nsCOMPtr<nsIProtocolHandler> handler;
rv = ios->GetProtocolHandler("http", getter_AddRefs(handler));
if (NS_FAILED(rv)) {
return;
}
}
// static
nsresult DNSUtils::CreateChannelHelper(nsIURI* aUri, nsIChannel** aResult) {
*aResult = nullptr;
if (NS_IsMainThread() && !XRE_IsSocketProcess()) {
nsresult rv;
nsCOMPtr<nsIIOService> ios(do_GetIOService(&rv));
NS_ENSURE_SUCCESS(rv, rv);
return NS_NewChannel(
aResult, aUri, nsContentUtils::GetSystemPrincipal(),
nsILoadInfo::SEC_ALLOW_CROSS_ORIGIN_SEC_CONTEXT_IS_NULL,
nsIContentPolicy::TYPE_OTHER,
nullptr, // nsICookieJarSettings
nullptr, // PerformanceStorage
nullptr, // aLoadGroup
nullptr, // aCallbacks
nsIRequest::LOAD_NORMAL, ios);
}
// Unfortunately, we can only initialize gHttpHandler on main thread.
if (!gHttpHandler) {
nsCOMPtr<nsIEventTarget> main = GetMainThreadEventTarget();
if (main) {
// Forward to the main thread synchronously.
SyncRunnable::DispatchToThread(
main, new SyncRunnable(NS_NewRunnableFunction(
"InitHttpHandler", []() { InitHttpHandler(); })));
}
}
if (!gHttpHandler) {
return NS_ERROR_UNEXPECTED;
}
RefPtr<TRRLoadInfo> loadInfo =
new TRRLoadInfo(aUri, nsIContentPolicy::TYPE_OTHER);
return gHttpHandler->CreateTRRServiceChannel(aUri,
nullptr, // givenProxyInfo
0, // proxyResolveFlags
nullptr, // proxyURI
loadInfo, // aLoadInfo
aResult);
}
} // namespace net
} // namespace mozilla