gecko-dev/dom/workers/ServiceWorkerRegistrationIn...

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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 "ServiceWorkerRegistrationInfo.h"
BEGIN_WORKERS_NAMESPACE
namespace {
class ContinueActivateRunnable final : public LifeCycleEventCallback
{
nsMainThreadPtrHandle<ServiceWorkerRegistrationInfo> mRegistration;
bool mSuccess;
public:
explicit ContinueActivateRunnable(const nsMainThreadPtrHandle<ServiceWorkerRegistrationInfo>& aRegistration)
: mRegistration(aRegistration)
, mSuccess(false)
{
AssertIsOnMainThread();
}
void
SetResult(bool aResult) override
{
mSuccess = aResult;
}
NS_IMETHOD
Run() override
{
AssertIsOnMainThread();
mRegistration->FinishActivate(mSuccess);
mRegistration = nullptr;
return NS_OK;
}
};
} // anonymous namespace
void
ServiceWorkerRegistrationInfo::Clear()
{
if (mEvaluatingWorker) {
mEvaluatingWorker = nullptr;
}
if (mInstallingWorker) {
mInstallingWorker->UpdateState(ServiceWorkerState::Redundant);
mInstallingWorker->WorkerPrivate()->NoteDeadServiceWorkerInfo();
mInstallingWorker = nullptr;
// FIXME(nsm): Abort any inflight requests from installing worker.
}
if (mWaitingWorker) {
mWaitingWorker->UpdateState(ServiceWorkerState::Redundant);
mWaitingWorker->WorkerPrivate()->NoteDeadServiceWorkerInfo();
mWaitingWorker = nullptr;
}
if (mActiveWorker) {
mActiveWorker->UpdateState(ServiceWorkerState::Redundant);
mActiveWorker->WorkerPrivate()->NoteDeadServiceWorkerInfo();
mActiveWorker = nullptr;
}
NotifyListenersOnChange(WhichServiceWorker::INSTALLING_WORKER |
WhichServiceWorker::WAITING_WORKER |
WhichServiceWorker::ACTIVE_WORKER);
}
ServiceWorkerRegistrationInfo::ServiceWorkerRegistrationInfo(const nsACString& aScope,
nsIPrincipal* aPrincipal)
: mControlledDocumentsCounter(0)
, mUpdateState(NoUpdate)
, mLastUpdateCheckTime(0)
, mScope(aScope)
, mPrincipal(aPrincipal)
, mPendingUninstall(false)
{}
ServiceWorkerRegistrationInfo::~ServiceWorkerRegistrationInfo()
{
if (IsControllingDocuments()) {
NS_WARNING("ServiceWorkerRegistrationInfo is still controlling documents. This can be a bug or a leak in ServiceWorker API or in any other API that takes the document alive.");
}
}
NS_IMPL_ISUPPORTS(ServiceWorkerRegistrationInfo, nsIServiceWorkerRegistrationInfo)
NS_IMETHODIMP
ServiceWorkerRegistrationInfo::GetPrincipal(nsIPrincipal** aPrincipal)
{
AssertIsOnMainThread();
NS_ADDREF(*aPrincipal = mPrincipal);
return NS_OK;
}
NS_IMETHODIMP
ServiceWorkerRegistrationInfo::GetScope(nsAString& aScope)
{
AssertIsOnMainThread();
CopyUTF8toUTF16(mScope, aScope);
return NS_OK;
}
NS_IMETHODIMP
ServiceWorkerRegistrationInfo::GetScriptSpec(nsAString& aScriptSpec)
{
AssertIsOnMainThread();
RefPtr<ServiceWorkerInfo> newest = Newest();
if (newest) {
CopyUTF8toUTF16(newest->ScriptSpec(), aScriptSpec);
}
return NS_OK;
}
NS_IMETHODIMP
ServiceWorkerRegistrationInfo::GetInstallingWorker(nsIServiceWorkerInfo **aResult)
{
AssertIsOnMainThread();
nsCOMPtr<nsIServiceWorkerInfo> info = do_QueryInterface(mInstallingWorker);
info.forget(aResult);
return NS_OK;
}
NS_IMETHODIMP
ServiceWorkerRegistrationInfo::GetWaitingWorker(nsIServiceWorkerInfo **aResult)
{
AssertIsOnMainThread();
nsCOMPtr<nsIServiceWorkerInfo> info = do_QueryInterface(mWaitingWorker);
info.forget(aResult);
return NS_OK;
}
NS_IMETHODIMP
ServiceWorkerRegistrationInfo::GetActiveWorker(nsIServiceWorkerInfo **aResult)
{
AssertIsOnMainThread();
nsCOMPtr<nsIServiceWorkerInfo> info = do_QueryInterface(mActiveWorker);
info.forget(aResult);
return NS_OK;
}
NS_IMETHODIMP
ServiceWorkerRegistrationInfo::GetWorkerByID(uint64_t aID, nsIServiceWorkerInfo **aResult)
{
AssertIsOnMainThread();
MOZ_ASSERT(aResult);
RefPtr<ServiceWorkerInfo> info = GetServiceWorkerInfoById(aID);
// It is ok to return null for a missing service worker info.
info.forget(aResult);
return NS_OK;
}
NS_IMETHODIMP
ServiceWorkerRegistrationInfo::AddListener(
nsIServiceWorkerRegistrationInfoListener *aListener)
{
AssertIsOnMainThread();
if (!aListener || mListeners.Contains(aListener)) {
return NS_ERROR_INVALID_ARG;
}
mListeners.AppendElement(aListener);
return NS_OK;
}
NS_IMETHODIMP
ServiceWorkerRegistrationInfo::RemoveListener(
nsIServiceWorkerRegistrationInfoListener *aListener)
{
AssertIsOnMainThread();
if (!aListener || !mListeners.Contains(aListener)) {
return NS_ERROR_INVALID_ARG;
}
mListeners.RemoveElement(aListener);
return NS_OK;
}
already_AddRefed<ServiceWorkerInfo>
ServiceWorkerRegistrationInfo::GetServiceWorkerInfoById(uint64_t aId)
{
AssertIsOnMainThread();
RefPtr<ServiceWorkerInfo> serviceWorker;
if (mEvaluatingWorker && mEvaluatingWorker->ID() == aId) {
serviceWorker = mEvaluatingWorker;
} else if (mInstallingWorker && mInstallingWorker->ID() == aId) {
serviceWorker = mInstallingWorker;
} else if (mWaitingWorker && mWaitingWorker->ID() == aId) {
serviceWorker = mWaitingWorker;
} else if (mActiveWorker && mActiveWorker->ID() == aId) {
serviceWorker = mActiveWorker;
}
return serviceWorker.forget();
}
void
ServiceWorkerRegistrationInfo::TryToActivateAsync()
{
MOZ_ALWAYS_SUCCEEDS(
NS_DispatchToMainThread(NewRunnableMethod(this,
&ServiceWorkerRegistrationInfo::TryToActivate)));
}
/*
* TryToActivate should not be called directly, use TryToActivateAsync instead.
*/
void
ServiceWorkerRegistrationInfo::TryToActivate()
{
AssertIsOnMainThread();
bool controlling = IsControllingDocuments();
bool skipWaiting = mWaitingWorker && mWaitingWorker->SkipWaitingFlag();
bool idle = IsIdle();
if (idle && (!controlling || skipWaiting)) {
Activate();
}
}
void
ServiceWorkerRegistrationInfo::Activate()
{
if (!mWaitingWorker) {
return;
}
TransitionWaitingToActive();
// FIXME(nsm): Unlink appcache if there is one.
RefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance();
swm->CheckPendingReadyPromises();
// "Queue a task to fire a simple event named controllerchange..."
nsCOMPtr<nsIRunnable> controllerChangeRunnable =
NewRunnableMethod<RefPtr<ServiceWorkerRegistrationInfo>>(
swm, &ServiceWorkerManager::FireControllerChange, this);
NS_DispatchToMainThread(controllerChangeRunnable);
nsCOMPtr<nsIRunnable> failRunnable =
NewRunnableMethod<bool>(this,
&ServiceWorkerRegistrationInfo::FinishActivate,
false /* success */);
nsMainThreadPtrHandle<ServiceWorkerRegistrationInfo> handle(
new nsMainThreadPtrHolder<ServiceWorkerRegistrationInfo>(this));
RefPtr<LifeCycleEventCallback> callback = new ContinueActivateRunnable(handle);
ServiceWorkerPrivate* workerPrivate = mActiveWorker->WorkerPrivate();
MOZ_ASSERT(workerPrivate);
nsresult rv = workerPrivate->SendLifeCycleEvent(NS_LITERAL_STRING("activate"),
callback, failRunnable);
if (NS_WARN_IF(NS_FAILED(rv))) {
MOZ_ALWAYS_SUCCEEDS(NS_DispatchToMainThread(failRunnable));
return;
}
}
void
ServiceWorkerRegistrationInfo::FinishActivate(bool aSuccess)
{
if (mPendingUninstall || !mActiveWorker ||
mActiveWorker->State() != ServiceWorkerState::Activating) {
return;
}
// Activation never fails, so aSuccess is ignored.
mActiveWorker->UpdateState(ServiceWorkerState::Activated);
RefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance();
swm->StoreRegistration(mPrincipal, this);
}
void
ServiceWorkerRegistrationInfo::RefreshLastUpdateCheckTime()
{
AssertIsOnMainThread();
mLastUpdateCheckTime = PR_IntervalNow() / PR_MSEC_PER_SEC;
}
bool
ServiceWorkerRegistrationInfo::IsLastUpdateCheckTimeOverOneDay() const
{
AssertIsOnMainThread();
// For testing.
if (Preferences::GetBool("dom.serviceWorkers.testUpdateOverOneDay")) {
return true;
}
const uint64_t kSecondsPerDay = 86400;
const uint64_t now = PR_IntervalNow() / PR_MSEC_PER_SEC;
if ((now - mLastUpdateCheckTime) > kSecondsPerDay) {
return true;
}
return false;
}
void
ServiceWorkerRegistrationInfo::NotifyListenersOnChange(WhichServiceWorker aChangedWorkers)
{
AssertIsOnMainThread();
MOZ_ASSERT(aChangedWorkers & (WhichServiceWorker::INSTALLING_WORKER |
WhichServiceWorker::WAITING_WORKER |
WhichServiceWorker::ACTIVE_WORKER));
RefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance();
swm->InvalidateServiceWorkerRegistrationWorker(this, aChangedWorkers);
nsTArray<nsCOMPtr<nsIServiceWorkerRegistrationInfoListener>> listeners(mListeners);
for (size_t index = 0; index < listeners.Length(); ++index) {
listeners[index]->OnChange();
}
}
void
ServiceWorkerRegistrationInfo::MaybeScheduleTimeCheckAndUpdate()
{
AssertIsOnMainThread();
RefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance();
if (!swm) {
// shutting down, do nothing
return;
}
if (mUpdateState == NoUpdate) {
mUpdateState = NeedTimeCheckAndUpdate;
}
swm->ScheduleUpdateTimer(mPrincipal, mScope);
}
void
ServiceWorkerRegistrationInfo::MaybeScheduleUpdate()
{
AssertIsOnMainThread();
RefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance();
if (!swm) {
// shutting down, do nothing
return;
}
mUpdateState = NeedUpdate;
swm->ScheduleUpdateTimer(mPrincipal, mScope);
}
bool
ServiceWorkerRegistrationInfo::CheckAndClearIfUpdateNeeded()
{
AssertIsOnMainThread();
bool result = mUpdateState == NeedUpdate ||
(mUpdateState == NeedTimeCheckAndUpdate &&
IsLastUpdateCheckTimeOverOneDay());
mUpdateState = NoUpdate;
return result;
}
ServiceWorkerInfo*
ServiceWorkerRegistrationInfo::GetEvaluating() const
{
AssertIsOnMainThread();
return mEvaluatingWorker;
}
ServiceWorkerInfo*
ServiceWorkerRegistrationInfo::GetInstalling() const
{
AssertIsOnMainThread();
return mInstallingWorker;
}
ServiceWorkerInfo*
ServiceWorkerRegistrationInfo::GetWaiting() const
{
AssertIsOnMainThread();
return mWaitingWorker;
}
ServiceWorkerInfo*
ServiceWorkerRegistrationInfo::GetActive() const
{
AssertIsOnMainThread();
return mActiveWorker;
}
void
ServiceWorkerRegistrationInfo::SetEvaluating(ServiceWorkerInfo* aServiceWorker)
{
AssertIsOnMainThread();
MOZ_ASSERT(aServiceWorker);
MOZ_ASSERT(!mEvaluatingWorker);
MOZ_ASSERT(!mInstallingWorker);
MOZ_ASSERT(mWaitingWorker != aServiceWorker);
MOZ_ASSERT(mActiveWorker != aServiceWorker);
mEvaluatingWorker = aServiceWorker;
}
void
ServiceWorkerRegistrationInfo::ClearEvaluating()
{
AssertIsOnMainThread();
if (!mEvaluatingWorker) {
return;
}
mEvaluatingWorker->UpdateState(ServiceWorkerState::Redundant);
mEvaluatingWorker = nullptr;
}
void
ServiceWorkerRegistrationInfo::ClearInstalling()
{
AssertIsOnMainThread();
if (!mInstallingWorker) {
return;
}
mInstallingWorker->UpdateState(ServiceWorkerState::Redundant);
mInstallingWorker = nullptr;
NotifyListenersOnChange(WhichServiceWorker::INSTALLING_WORKER);
}
void
ServiceWorkerRegistrationInfo::TransitionEvaluatingToInstalling()
{
AssertIsOnMainThread();
MOZ_ASSERT(mEvaluatingWorker);
MOZ_ASSERT(!mInstallingWorker);
mInstallingWorker = mEvaluatingWorker.forget();
mInstallingWorker->UpdateState(ServiceWorkerState::Installing);
NotifyListenersOnChange(WhichServiceWorker::INSTALLING_WORKER);
}
void
ServiceWorkerRegistrationInfo::TransitionInstallingToWaiting()
{
AssertIsOnMainThread();
MOZ_ASSERT(mInstallingWorker);
if (mWaitingWorker) {
MOZ_ASSERT(mInstallingWorker->CacheName() != mWaitingWorker->CacheName());
mWaitingWorker->UpdateState(ServiceWorkerState::Redundant);
}
mWaitingWorker = mInstallingWorker.forget();
mWaitingWorker->UpdateState(ServiceWorkerState::Installed);
NotifyListenersOnChange(WhichServiceWorker::INSTALLING_WORKER |
WhichServiceWorker::WAITING_WORKER);
RefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance();
swm->StoreRegistration(mPrincipal, this);
}
void
ServiceWorkerRegistrationInfo::SetActive(ServiceWorkerInfo* aServiceWorker)
{
AssertIsOnMainThread();
MOZ_ASSERT(aServiceWorker);
// TODO: Assert installing, waiting, and active are nullptr once the SWM
// moves to the parent process. After that happens this code will
// only run for browser initialization and not for cross-process
// overrides.
MOZ_ASSERT(mInstallingWorker != aServiceWorker);
MOZ_ASSERT(mWaitingWorker != aServiceWorker);
MOZ_ASSERT(mActiveWorker != aServiceWorker);
if (mActiveWorker) {
MOZ_ASSERT(aServiceWorker->CacheName() != mActiveWorker->CacheName());
mActiveWorker->UpdateState(ServiceWorkerState::Redundant);
}
// The active worker is being overriden due to initial load or
// another process activating a worker. Move straight to the
// Activated state.
mActiveWorker = aServiceWorker;
mActiveWorker->SetActivateStateUncheckedWithoutEvent(ServiceWorkerState::Activated);
NotifyListenersOnChange(WhichServiceWorker::ACTIVE_WORKER);
}
void
ServiceWorkerRegistrationInfo::TransitionWaitingToActive()
{
AssertIsOnMainThread();
MOZ_ASSERT(mWaitingWorker);
if (mActiveWorker) {
MOZ_ASSERT(mWaitingWorker->CacheName() != mActiveWorker->CacheName());
mActiveWorker->UpdateState(ServiceWorkerState::Redundant);
}
// We are transitioning from waiting to active normally, so go to
// the activating state.
mActiveWorker = mWaitingWorker.forget();
mActiveWorker->UpdateState(ServiceWorkerState::Activating);
NotifyListenersOnChange(WhichServiceWorker::WAITING_WORKER |
WhichServiceWorker::ACTIVE_WORKER);
}
bool
ServiceWorkerRegistrationInfo::IsIdle() const
{
return !mActiveWorker || mActiveWorker->WorkerPrivate()->IsIdle();
}
END_WORKERS_NAMESPACE