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/* -*- 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 "ServiceWorkerClient.h"
#include "ServiceWorkerContainer.h"
#include "mozilla/dom/MessageEvent.h"
#include "mozilla/dom/Navigator.h"
#include "mozilla/dom/ServiceWorkerMessageEvent.h"
#include "mozilla/dom/ServiceWorkerMessageEventBinding.h"
#include "nsGlobalWindow.h"
#include "nsIBrowserDOMWindow.h"
#include "nsIDocument.h"
#include "ServiceWorker.h"
#include "ServiceWorkerPrivate.h"
#include "WorkerPrivate.h"
using namespace mozilla;
using namespace mozilla::dom;
using namespace mozilla::dom::workers;
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(ServiceWorkerClient, mOwner)
NS_IMPL_CYCLE_COLLECTING_ADDREF(ServiceWorkerClient)
NS_IMPL_CYCLE_COLLECTING_RELEASE(ServiceWorkerClient)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(ServiceWorkerClient)
NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_END
ServiceWorkerClientInfo::ServiceWorkerClientInfo(nsIDocument* aDoc)
: mWindowId(0)
, mFrameType(FrameType::None)
{
MOZ_ASSERT(aDoc);
nsresult rv = aDoc->GetOrCreateId(mClientId);
if (NS_FAILED(rv)) {
NS_WARNING("Failed to get the UUID of the document.");
}
RefPtr<nsGlobalWindow> innerWindow = nsGlobalWindow::Cast(aDoc->GetInnerWindow());
if (innerWindow) {
// XXXcatalinb: The inner window can be null if the document is navigating
// and was detached.
mWindowId = innerWindow->WindowID();
}
nsCOMPtr<nsIURI> originalURI = aDoc->GetOriginalURI();
if (originalURI) {
nsAutoCString spec;
originalURI->GetSpec(spec);
CopyUTF8toUTF16(spec, mUrl);
}
mVisibilityState = aDoc->VisibilityState();
ErrorResult result;
mFocused = aDoc->HasFocus(result);
if (result.Failed()) {
NS_WARNING("Failed to get focus information.");
}
RefPtr<nsGlobalWindow> outerWindow = nsGlobalWindow::Cast(aDoc->GetWindow());
if (!outerWindow) {
MOZ_ASSERT(mFrameType == FrameType::None);
} else if (!outerWindow->IsTopLevelWindow()) {
mFrameType = FrameType::Nested;
} else if (outerWindow->HadOriginalOpener()) {
mFrameType = FrameType::Auxiliary;
} else {
mFrameType = FrameType::Top_level;
}
}
JSObject*
ServiceWorkerClient::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
{
return ClientBinding::Wrap(aCx, this, aGivenProto);
}
namespace {
class ServiceWorkerClientPostMessageRunnable final
: public Runnable
, public StructuredCloneHolder
{
uint64_t mWindowId;
public:
explicit ServiceWorkerClientPostMessageRunnable(uint64_t aWindowId)
: StructuredCloneHolder(CloningSupported, TransferringSupported,
StructuredCloneScope::SameProcessDifferentThread)
, mWindowId(aWindowId)
{}
NS_IMETHOD
Run() override
{
AssertIsOnMainThread();
nsGlobalWindow* window = nsGlobalWindow::GetInnerWindowWithId(mWindowId);
if (!window) {
return NS_ERROR_FAILURE;
}
ErrorResult result;
dom::Navigator* navigator = window->GetNavigator(result);
if (NS_WARN_IF(result.Failed())) {
return result.StealNSResult();
}
RefPtr<ServiceWorkerContainer> container = navigator->ServiceWorker();
AutoJSAPI jsapi;
if (NS_WARN_IF(!jsapi.Init(window))) {
return NS_ERROR_FAILURE;
}
JSContext* cx = jsapi.cx();
return DispatchDOMEvent(cx, container);
}
private:
NS_IMETHOD
DispatchDOMEvent(JSContext* aCx, ServiceWorkerContainer* aTargetContainer)
{
AssertIsOnMainThread();
MOZ_ASSERT(aTargetContainer->GetParentObject(),
"How come we don't have a window here?!");
JS::Rooted<JS::Value> messageData(aCx);
ErrorResult rv;
Read(aTargetContainer->GetParentObject(), aCx, &messageData, rv);
if (NS_WARN_IF(rv.Failed())) {
xpc::Throw(aCx, rv.StealNSResult());
return NS_ERROR_FAILURE;
}
RootedDictionary<ServiceWorkerMessageEventInit> init(aCx);
nsCOMPtr<nsIPrincipal> principal = aTargetContainer->GetParentObject()->PrincipalOrNull();
NS_WARNING_ASSERTION(principal, "Why is the principal null here?");
bool isNullPrincipal = false;
bool isSystemPrincipal = false;
if (principal) {
isNullPrincipal = principal->GetIsNullPrincipal();
MOZ_ASSERT(!isNullPrincipal);
isSystemPrincipal = principal->GetIsSystemPrincipal();
MOZ_ASSERT(!isSystemPrincipal);
}
init.mData = messageData;
nsAutoCString origin;
if (principal && !isNullPrincipal && !isSystemPrincipal) {
principal->GetOrigin(origin);
}
init.mOrigin = NS_ConvertUTF8toUTF16(origin);
RefPtr<ServiceWorker> serviceWorker = aTargetContainer->GetController();
if (serviceWorker) {
init.mSource.SetValue().SetAsServiceWorker() = serviceWorker;
}
if (!TakeTransferredPortsAsSequence(init.mPorts)) {
return NS_ERROR_OUT_OF_MEMORY;
}
RefPtr<ServiceWorkerMessageEvent> event =
ServiceWorkerMessageEvent::Constructor(aTargetContainer,
NS_LITERAL_STRING("message"),
init);
event->SetTrusted(true);
bool status = false;
aTargetContainer->DispatchEvent(static_cast<dom::Event*>(event.get()),
&status);
if (!status) {
return NS_ERROR_FAILURE;
}
return NS_OK;
}
};
} // namespace
void
ServiceWorkerClient::PostMessage(JSContext* aCx, JS::Handle<JS::Value> aMessage,
const Optional<Sequence<JS::Value>>& aTransferable,
ErrorResult& aRv)
{
WorkerPrivate* workerPrivate = GetCurrentThreadWorkerPrivate();
MOZ_ASSERT(workerPrivate);
workerPrivate->AssertIsOnWorkerThread();
JS::Rooted<JS::Value> transferable(aCx, JS::UndefinedValue());
if (aTransferable.WasPassed()) {
const Sequence<JS::Value>& realTransferable = aTransferable.Value();
JS::HandleValueArray elements =
JS::HandleValueArray::fromMarkedLocation(realTransferable.Length(),
realTransferable.Elements());
JSObject* array = JS_NewArrayObject(aCx, elements);
if (!array) {
aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
return;
}
transferable.setObject(*array);
}
RefPtr<ServiceWorkerClientPostMessageRunnable> runnable =
new ServiceWorkerClientPostMessageRunnable(mWindowId);
runnable->Write(aCx, aMessage, transferable, JS::CloneDataPolicy().denySharedArrayBuffer(),
aRv);
if (NS_WARN_IF(aRv.Failed())) {
return;
}
aRv = workerPrivate->DispatchToMainThread(runnable.forget());
if (NS_WARN_IF(aRv.Failed())) {
return;
}
}
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