gecko-dev/dom/workers/ServiceWorkerManagerService...

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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 "ServiceWorkerManagerService.h"
#include "ServiceWorkerManagerParent.h"
#include "ServiceWorkerRegistrar.h"
#include "mozilla/dom/TabParent.h"
#include "mozilla/ipc/BackgroundParent.h"
#include "mozilla/unused.h"
namespace mozilla {
using namespace ipc;
namespace dom {
namespace workers {
namespace {
ServiceWorkerManagerService* sInstance = nullptr;
struct NotifySoftUpdateData
{
RefPtr<ServiceWorkerManagerParent> mParent;
RefPtr<ContentParent> mContentParent;
~NotifySoftUpdateData()
{
MOZ_ASSERT(!mContentParent);
}
};
class NotifySoftUpdateIfPrincipalOkRunnable final : public nsRunnable
{
public:
NotifySoftUpdateIfPrincipalOkRunnable(
nsAutoPtr<nsTArray<NotifySoftUpdateData>>& aData,
const PrincipalOriginAttributes& aOriginAttributes,
const nsAString& aScope)
: mData(aData)
, mOriginAttributes(aOriginAttributes)
, mScope(aScope)
, mBackgroundThread(NS_GetCurrentThread())
{
AssertIsInMainProcess();
AssertIsOnBackgroundThread();
MOZ_ASSERT(mData && !aData);
MOZ_ASSERT(mBackgroundThread);
}
NS_IMETHODIMP
Run() override
{
if (NS_IsMainThread()) {
for (uint32_t i = 0; i < mData->Length(); ++i) {
NotifySoftUpdateData& data = mData->ElementAt(i);
nsTArray<TabContext> contextArray =
data.mContentParent->GetManagedTabContext();
// mContentParent needs to be released in the main thread.
data.mContentParent = nullptr;
// We only send the notification about the soft update to the
// tabs/apps with the same appId and inBrowser values.
// Sending a notification to the wrong process will make the process
// to be killed.
for (uint32_t j = 0; j < contextArray.Length(); ++j) {
if ((contextArray[j].OwnOrContainingAppId() == mOriginAttributes.mAppId) &&
(contextArray[j].IsBrowserElement() == mOriginAttributes.mInBrowser)) {
continue;
}
// Array entries with no mParent won't receive any notification.
data.mParent = nullptr;
}
}
nsresult rv = mBackgroundThread->Dispatch(this, NS_DISPATCH_NORMAL);
MOZ_ALWAYS_TRUE(NS_SUCCEEDED(rv));
return NS_OK;
}
AssertIsOnBackgroundThread();
for (uint32_t i = 0; i < mData->Length(); ++i) {
NotifySoftUpdateData& data = mData->ElementAt(i);
MOZ_ASSERT(!(data.mContentParent));
ServiceWorkerManagerParent* parent = data.mParent;
if (parent && !parent->ActorDestroyed()) {
Unused << parent->SendNotifySoftUpdate(mOriginAttributes, mScope);
}
}
return NS_OK;
}
private:
nsAutoPtr<nsTArray<NotifySoftUpdateData>> mData;
PrincipalOriginAttributes mOriginAttributes;
nsString mScope;
nsCOMPtr<nsIThread> mBackgroundThread;
};
} // namespace
ServiceWorkerManagerService::ServiceWorkerManagerService()
{
AssertIsOnBackgroundThread();
// sInstance is a raw ServiceWorkerManagerService*.
MOZ_ASSERT(!sInstance);
sInstance = this;
}
ServiceWorkerManagerService::~ServiceWorkerManagerService()
{
AssertIsOnBackgroundThread();
MOZ_ASSERT(sInstance == this);
MOZ_ASSERT(mAgents.Count() == 0);
sInstance = nullptr;
}
/* static */ already_AddRefed<ServiceWorkerManagerService>
ServiceWorkerManagerService::Get()
{
AssertIsOnBackgroundThread();
RefPtr<ServiceWorkerManagerService> instance = sInstance;
return instance.forget();
}
/* static */ already_AddRefed<ServiceWorkerManagerService>
ServiceWorkerManagerService::GetOrCreate()
{
AssertIsOnBackgroundThread();
RefPtr<ServiceWorkerManagerService> instance = sInstance;
if (!instance) {
instance = new ServiceWorkerManagerService();
}
return instance.forget();
}
void
ServiceWorkerManagerService::RegisterActor(ServiceWorkerManagerParent* aParent)
{
AssertIsOnBackgroundThread();
MOZ_ASSERT(aParent);
MOZ_ASSERT(!mAgents.Contains(aParent));
mAgents.PutEntry(aParent);
}
void
ServiceWorkerManagerService::UnregisterActor(ServiceWorkerManagerParent* aParent)
{
AssertIsOnBackgroundThread();
MOZ_ASSERT(aParent);
MOZ_ASSERT(mAgents.Contains(aParent));
mAgents.RemoveEntry(aParent);
}
void
ServiceWorkerManagerService::PropagateRegistration(
uint64_t aParentID,
ServiceWorkerRegistrationData& aData)
{
AssertIsOnBackgroundThread();
DebugOnly<bool> parentFound = false;
for (auto iter = mAgents.Iter(); !iter.Done(); iter.Next()) {
RefPtr<ServiceWorkerManagerParent> parent = iter.Get()->GetKey();
MOZ_ASSERT(parent);
if (parent->ID() != aParentID) {
Unused << parent->SendNotifyRegister(aData);
#ifdef DEBUG
} else {
parentFound = true;
#endif
}
}
#ifdef DEBUG
MOZ_ASSERT(parentFound);
#endif
}
void
ServiceWorkerManagerService::PropagateSoftUpdate(
uint64_t aParentID,
const PrincipalOriginAttributes& aOriginAttributes,
const nsAString& aScope)
{
AssertIsOnBackgroundThread();
nsAutoPtr<nsTArray<NotifySoftUpdateData>> notifySoftUpdateDataArray(
new nsTArray<NotifySoftUpdateData>());
DebugOnly<bool> parentFound = false;
for (auto iter = mAgents.Iter(); !iter.Done(); iter.Next()) {
RefPtr<ServiceWorkerManagerParent> parent = iter.Get()->GetKey();
MOZ_ASSERT(parent);
#ifdef DEBUG
if (parent->ID() == aParentID) {
parentFound = true;
}
#endif
RefPtr<ContentParent> contentParent = parent->GetContentParent();
// If the ContentParent is null we are dealing with a same-process actor.
if (!contentParent) {
Unused << parent->SendNotifySoftUpdate(aOriginAttributes,
nsString(aScope));
continue;
}
NotifySoftUpdateData* data = notifySoftUpdateDataArray->AppendElement();
data->mContentParent.swap(contentParent);
data->mParent.swap(parent);
}
if (notifySoftUpdateDataArray->IsEmpty()) {
return;
}
RefPtr<NotifySoftUpdateIfPrincipalOkRunnable> runnable =
new NotifySoftUpdateIfPrincipalOkRunnable(notifySoftUpdateDataArray,
aOriginAttributes, aScope);
MOZ_ASSERT(!notifySoftUpdateDataArray);
nsresult rv = NS_DispatchToMainThread(runnable);
MOZ_ALWAYS_TRUE(NS_SUCCEEDED(rv));
#ifdef DEBUG
MOZ_ASSERT(parentFound);
#endif
}
void
ServiceWorkerManagerService::PropagateUnregister(
uint64_t aParentID,
const PrincipalInfo& aPrincipalInfo,
const nsAString& aScope)
{
AssertIsOnBackgroundThread();
RefPtr<dom::ServiceWorkerRegistrar> service =
dom::ServiceWorkerRegistrar::Get();
MOZ_ASSERT(service);
// It's possible that we don't have any ServiceWorkerManager managing this
// scope but we still need to unregister it from the ServiceWorkerRegistrar.
service->UnregisterServiceWorker(aPrincipalInfo,
NS_ConvertUTF16toUTF8(aScope));
DebugOnly<bool> parentFound = false;
for (auto iter = mAgents.Iter(); !iter.Done(); iter.Next()) {
RefPtr<ServiceWorkerManagerParent> parent = iter.Get()->GetKey();
MOZ_ASSERT(parent);
if (parent->ID() != aParentID) {
nsString scope(aScope);
Unused << parent->SendNotifyUnregister(aPrincipalInfo, scope);
#ifdef DEBUG
} else {
parentFound = true;
#endif
}
}
#ifdef DEBUG
MOZ_ASSERT(parentFound);
#endif
}
void
ServiceWorkerManagerService::PropagateRemove(uint64_t aParentID,
const nsACString& aHost)
{
AssertIsOnBackgroundThread();
DebugOnly<bool> parentFound = false;
for (auto iter = mAgents.Iter(); !iter.Done(); iter.Next()) {
RefPtr<ServiceWorkerManagerParent> parent = iter.Get()->GetKey();
MOZ_ASSERT(parent);
if (parent->ID() != aParentID) {
nsCString host(aHost);
Unused << parent->SendNotifyRemove(host);
#ifdef DEBUG
} else {
parentFound = true;
#endif
}
}
#ifdef DEBUG
MOZ_ASSERT(parentFound);
#endif
}
void
ServiceWorkerManagerService::PropagateRemoveAll(uint64_t aParentID)
{
AssertIsOnBackgroundThread();
RefPtr<dom::ServiceWorkerRegistrar> service =
dom::ServiceWorkerRegistrar::Get();
MOZ_ASSERT(service);
service->RemoveAll();
DebugOnly<bool> parentFound = false;
for (auto iter = mAgents.Iter(); !iter.Done(); iter.Next()) {
RefPtr<ServiceWorkerManagerParent> parent = iter.Get()->GetKey();
MOZ_ASSERT(parent);
if (parent->ID() != aParentID) {
Unused << parent->SendNotifyRemoveAll();
#ifdef DEBUG
} else {
parentFound = true;
#endif
}
}
#ifdef DEBUG
MOZ_ASSERT(parentFound);
#endif
}
} // namespace workers
} // namespace dom
} // namespace mozilla