gecko-dev/dom/workers/WorkerNavigator.cpp

237 строки
6.5 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 "mozilla/dom/BindingUtils.h"
#include "mozilla/dom/MediaCapabilities.h"
#include "mozilla/dom/Promise.h"
#include "mozilla/dom/PromiseWorkerProxy.h"
#include "mozilla/dom/StorageManager.h"
#include "mozilla/dom/WorkerNavigator.h"
#include "mozilla/dom/WorkerNavigatorBinding.h"
#include "mozilla/dom/network/Connection.h"
#include "mozilla/StaticPrefs.h"
#include "nsProxyRelease.h"
#include "nsRFPService.h"
#include "RuntimeService.h"
#include "nsIDocument.h"
#include "WorkerPrivate.h"
#include "WorkerRunnable.h"
#include "WorkerScope.h"
#include "mozilla/dom/Navigator.h"
namespace mozilla {
namespace dom {
using namespace workerinternals;
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(WorkerNavigator, mStorageManager,
mConnection, mMediaCapabilities);
NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(WorkerNavigator, AddRef)
NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(WorkerNavigator, Release)
WorkerNavigator::WorkerNavigator(const NavigatorProperties& aProperties,
bool aOnline)
: mProperties(aProperties)
, mOnline(aOnline)
{
}
WorkerNavigator::~WorkerNavigator()
{
}
/* static */ already_AddRefed<WorkerNavigator>
WorkerNavigator::Create(bool aOnLine)
{
RuntimeService* rts = RuntimeService::GetService();
MOZ_ASSERT(rts);
const RuntimeService::NavigatorProperties& properties =
rts->GetNavigatorProperties();
RefPtr<WorkerNavigator> navigator =
new WorkerNavigator(properties, aOnLine);
return navigator.forget();
}
JSObject*
WorkerNavigator::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
{
return WorkerNavigator_Binding::Wrap(aCx, this, aGivenProto);
}
void
WorkerNavigator::SetLanguages(const nsTArray<nsString>& aLanguages)
{
WorkerNavigator_Binding::ClearCachedLanguagesValue(this);
mProperties.mLanguages = aLanguages;
}
void
WorkerNavigator::GetAppName(nsString& aAppName, CallerType aCallerType) const
{
WorkerPrivate* workerPrivate = GetCurrentThreadWorkerPrivate();
MOZ_ASSERT(workerPrivate);
if ((!mProperties.mAppNameOverridden.IsEmpty() ||
StaticPrefs::privacy_resistFingerprinting()) &&
!workerPrivate->UsesSystemPrincipal()) {
// We will spoof this value when 'privacy.resistFingerprinting' is true.
// See nsRFPService.h for spoofed value.
aAppName = StaticPrefs::privacy_resistFingerprinting() ?
NS_LITERAL_STRING(SPOOFED_APPNAME) : mProperties.mAppNameOverridden;
} else {
aAppName = mProperties.mAppName;
}
}
void
WorkerNavigator::GetAppVersion(nsString& aAppVersion, CallerType aCallerType,
ErrorResult& aRv) const
{
WorkerPrivate* workerPrivate = GetCurrentThreadWorkerPrivate();
MOZ_ASSERT(workerPrivate);
if ((!mProperties.mAppVersionOverridden.IsEmpty() ||
StaticPrefs::privacy_resistFingerprinting()) &&
!workerPrivate->UsesSystemPrincipal()) {
// We will spoof this value when 'privacy.resistFingerprinting' is true.
// See nsRFPService.h for spoofed value.
aAppVersion = StaticPrefs::privacy_resistFingerprinting() ?
NS_LITERAL_STRING(SPOOFED_APPVERSION) : mProperties.mAppVersionOverridden;
} else {
aAppVersion = mProperties.mAppVersion;
}
}
void
WorkerNavigator::GetPlatform(nsString& aPlatform, CallerType aCallerType,
ErrorResult& aRv) const
{
WorkerPrivate* workerPrivate = GetCurrentThreadWorkerPrivate();
MOZ_ASSERT(workerPrivate);
if ((!mProperties.mPlatformOverridden.IsEmpty() ||
StaticPrefs::privacy_resistFingerprinting()) &&
!workerPrivate->UsesSystemPrincipal()) {
// We will spoof this value when 'privacy.resistFingerprinting' is true.
// See nsRFPService.h for spoofed value.
aPlatform = StaticPrefs::privacy_resistFingerprinting() ?
NS_LITERAL_STRING(SPOOFED_PLATFORM) : mProperties.mPlatformOverridden;
} else {
aPlatform = mProperties.mPlatform;
}
}
namespace {
class GetUserAgentRunnable final : public WorkerMainThreadRunnable
{
nsString& mUA;
public:
GetUserAgentRunnable(WorkerPrivate* aWorkerPrivate, nsString& aUA)
: WorkerMainThreadRunnable(aWorkerPrivate,
NS_LITERAL_CSTRING("UserAgent getter"))
, mUA(aUA)
{
MOZ_ASSERT(aWorkerPrivate);
aWorkerPrivate->AssertIsOnWorkerThread();
}
virtual bool MainThreadRun() override
{
AssertIsOnMainThread();
nsCOMPtr<nsPIDOMWindowInner> window = mWorkerPrivate->GetWindow();
bool isCallerChrome = mWorkerPrivate->UsesSystemPrincipal();
nsresult rv = dom::Navigator::GetUserAgent(window, isCallerChrome, mUA);
if (NS_FAILED(rv)) {
NS_WARNING("Failed to retrieve user-agent from the worker thread.");
}
return true;
}
};
} // namespace
void
WorkerNavigator::GetUserAgent(nsString& aUserAgent, CallerType aCallerType,
ErrorResult& aRv) const
{
WorkerPrivate* workerPrivate = GetCurrentThreadWorkerPrivate();
MOZ_ASSERT(workerPrivate);
RefPtr<GetUserAgentRunnable> runnable =
new GetUserAgentRunnable(workerPrivate, aUserAgent);
runnable->Dispatch(Canceling, aRv);
}
uint64_t
WorkerNavigator::HardwareConcurrency() const
{
RuntimeService* rts = RuntimeService::GetService();
MOZ_ASSERT(rts);
return rts->ClampedHardwareConcurrency();
}
StorageManager*
WorkerNavigator::Storage()
{
if (!mStorageManager) {
WorkerPrivate* workerPrivate = GetCurrentThreadWorkerPrivate();
MOZ_ASSERT(workerPrivate);
RefPtr<nsIGlobalObject> global = workerPrivate->GlobalScope();
MOZ_ASSERT(global);
mStorageManager = new StorageManager(global);
}
return mStorageManager;
}
network::Connection*
WorkerNavigator::GetConnection(ErrorResult& aRv)
{
if (!mConnection) {
WorkerPrivate* workerPrivate = GetCurrentThreadWorkerPrivate();
MOZ_ASSERT(workerPrivate);
mConnection = network::Connection::CreateForWorker(workerPrivate, aRv);
}
return mConnection;
}
dom::MediaCapabilities*
WorkerNavigator::MediaCapabilities()
{
if (!mMediaCapabilities) {
WorkerPrivate* workerPrivate = GetCurrentThreadWorkerPrivate();
MOZ_ASSERT(workerPrivate);
nsIGlobalObject* global = workerPrivate->GlobalScope();
MOZ_ASSERT(global);
mMediaCapabilities = new dom::MediaCapabilities(global);
}
return mMediaCapabilities;
}
} // namespace dom
} // namespace mozilla