зеркало из https://github.com/mozilla/gecko-dev.git
678 строки
19 KiB
C++
678 строки
19 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "ClientManagerService.h"
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#include "ClientManagerParent.h"
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#include "ClientNavigateOpParent.h"
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#include "ClientOpenWindowOpParent.h"
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#include "ClientOpenWindowUtils.h"
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#include "ClientPrincipalUtils.h"
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#include "ClientSourceParent.h"
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#include "mozilla/dom/ContentParent.h"
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#include "mozilla/dom/ServiceWorkerManager.h"
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#include "mozilla/dom/ServiceWorkerUtils.h"
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#include "mozilla/ipc/BackgroundParent.h"
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#include "mozilla/ipc/PBackgroundSharedTypes.h"
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#include "mozilla/ClearOnShutdown.h"
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#include "mozilla/MozPromise.h"
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#include "mozilla/SystemGroup.h"
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#include "jsfriendapi.h"
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#include "nsIAsyncShutdown.h"
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#include "nsIXULRuntime.h"
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#include "nsProxyRelease.h"
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namespace mozilla {
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namespace dom {
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using mozilla::ipc::AssertIsOnBackgroundThread;
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using mozilla::ipc::PrincipalInfo;
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namespace {
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ClientManagerService* sClientManagerServiceInstance = nullptr;
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bool sClientManagerServiceShutdownRegistered = false;
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class ClientShutdownBlocker final : public nsIAsyncShutdownBlocker
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{
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RefPtr<GenericPromise::Private> mPromise;
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~ClientShutdownBlocker() = default;
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public:
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explicit ClientShutdownBlocker(GenericPromise::Private* aPromise)
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: mPromise(aPromise)
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{
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MOZ_DIAGNOSTIC_ASSERT(mPromise);
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}
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NS_IMETHOD
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GetName(nsAString& aNameOut) override
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{
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aNameOut =
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NS_LITERAL_STRING("ClientManagerService: start destroying IPC actors early");
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return NS_OK;
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}
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NS_IMETHOD
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BlockShutdown(nsIAsyncShutdownClient* aClient) override
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{
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mPromise->Resolve(true, __func__);
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aClient->RemoveBlocker(this);
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return NS_OK;
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}
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NS_IMETHOD
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GetState(nsIPropertyBag**) override
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{
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return NS_OK;
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}
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NS_DECL_ISUPPORTS
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};
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NS_IMPL_ISUPPORTS(ClientShutdownBlocker, nsIAsyncShutdownBlocker)
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// Helper function the resolves a MozPromise when we detect that the browser
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// has begun to shutdown.
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RefPtr<GenericPromise>
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OnShutdown()
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{
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RefPtr<GenericPromise::Private> ref = new GenericPromise::Private(__func__);
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nsCOMPtr<nsIRunnable> r = NS_NewRunnableFunction("ClientManagerServer::OnShutdown",
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[ref] () {
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nsCOMPtr<nsIAsyncShutdownService> svc = services::GetAsyncShutdown();
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if (!svc) {
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ref->Resolve(true, __func__);
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return;
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}
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nsCOMPtr<nsIAsyncShutdownClient> phase;
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MOZ_ALWAYS_SUCCEEDS(svc->GetXpcomWillShutdown(getter_AddRefs(phase)));
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if (!phase) {
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ref->Resolve(true, __func__);
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return;
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}
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nsCOMPtr<nsIAsyncShutdownBlocker> blocker = new ClientShutdownBlocker(ref);
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nsresult rv =
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phase->AddBlocker(blocker, NS_LITERAL_STRING(__FILE__), __LINE__,
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NS_LITERAL_STRING("ClientManagerService shutdown"));
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if (NS_FAILED(rv)) {
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ref->Resolve(true, __func__);
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return;
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}
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});
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MOZ_ALWAYS_SUCCEEDS(
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SystemGroup::Dispatch(TaskCategory::Other, r.forget()));
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return ref.forget();
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}
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} // anonymous namespace
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ClientManagerService::ClientManagerService()
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: mShutdown(false)
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{
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AssertIsOnBackgroundThread();
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// Only register one shutdown handler at a time. If a previous service
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// instance did this, but shutdown has not come, then we can avoid
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// doing it again.
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if (!sClientManagerServiceShutdownRegistered) {
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sClientManagerServiceShutdownRegistered = true;
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// While the ClientManagerService will be gracefully terminated as windows
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// and workers are naturally killed, this can cause us to do extra work
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// relatively late in the shutdown process. To avoid this we eagerly begin
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// shutdown at the first sign it has begun. Since we handle normal shutdown
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// gracefully we don't really need to block anything here. We just begin
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// destroying our IPC actors immediately.
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OnShutdown()->Then(GetCurrentThreadSerialEventTarget(), __func__,
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[] () {
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// Look up the latest service instance, if it exists. This may
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// be different from the instance that registered the shutdown
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// handler.
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RefPtr<ClientManagerService> svc = ClientManagerService::GetInstance();
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if (svc) {
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svc->Shutdown();
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}
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});
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}
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}
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ClientManagerService::~ClientManagerService()
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{
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AssertIsOnBackgroundThread();
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MOZ_DIAGNOSTIC_ASSERT(mSourceTable.Count() == 0);
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MOZ_DIAGNOSTIC_ASSERT(mManagerList.IsEmpty());
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MOZ_DIAGNOSTIC_ASSERT(sClientManagerServiceInstance == this);
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sClientManagerServiceInstance = nullptr;
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}
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void
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ClientManagerService::Shutdown()
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{
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AssertIsOnBackgroundThread();
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MOZ_DIAGNOSTIC_ASSERT(sClientManagerServiceShutdownRegistered);
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// If many ClientManagerService are created and destroyed quickly we can
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// in theory get more than one shutdown listener calling us.
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if (mShutdown) {
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return;
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}
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mShutdown = true;
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// Begin destroying our various manager actors which will in turn destroy
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// all source, handle, and operation actors.
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AutoTArray<ClientManagerParent*, 16> list(mManagerList);
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for (auto actor : list) {
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Unused << PClientManagerParent::Send__delete__(actor);
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}
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}
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// static
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already_AddRefed<ClientManagerService>
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ClientManagerService::GetOrCreateInstance()
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{
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AssertIsOnBackgroundThread();
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if (!sClientManagerServiceInstance) {
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sClientManagerServiceInstance = new ClientManagerService();
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}
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RefPtr<ClientManagerService> ref(sClientManagerServiceInstance);
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return ref.forget();
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}
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// static
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already_AddRefed<ClientManagerService>
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ClientManagerService::GetInstance()
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{
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AssertIsOnBackgroundThread();
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if (!sClientManagerServiceInstance) {
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return nullptr;
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}
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RefPtr<ClientManagerService> ref(sClientManagerServiceInstance);
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return ref.forget();
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}
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bool
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ClientManagerService::AddSource(ClientSourceParent* aSource)
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{
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AssertIsOnBackgroundThread();
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MOZ_ASSERT(aSource);
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auto entry = mSourceTable.LookupForAdd(aSource->Info().Id());
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// Do not permit overwriting an existing ClientSource with the same
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// UUID. This would allow a spoofed ClientParentSource actor to
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// intercept postMessage() intended for the real actor.
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if (NS_WARN_IF(!!entry)) {
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return false;
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}
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entry.OrInsert([&] { return aSource; });
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return true;
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}
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bool
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ClientManagerService::RemoveSource(ClientSourceParent* aSource)
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{
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AssertIsOnBackgroundThread();
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MOZ_ASSERT(aSource);
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auto entry = mSourceTable.Lookup(aSource->Info().Id());
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if (NS_WARN_IF(!entry)) {
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return false;
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}
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entry.Remove();
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return true;
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}
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ClientSourceParent*
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ClientManagerService::FindSource(const nsID& aID, const PrincipalInfo& aPrincipalInfo)
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{
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AssertIsOnBackgroundThread();
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auto entry = mSourceTable.Lookup(aID);
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if (!entry) {
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return nullptr;
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}
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ClientSourceParent* source = entry.Data();
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if (source->IsFrozen() ||
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!ClientMatchPrincipalInfo(source->Info().PrincipalInfo(), aPrincipalInfo)) {
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return nullptr;
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}
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return source;
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}
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void
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ClientManagerService::AddManager(ClientManagerParent* aManager)
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{
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AssertIsOnBackgroundThread();
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MOZ_DIAGNOSTIC_ASSERT(aManager);
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MOZ_ASSERT(!mManagerList.Contains(aManager));
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mManagerList.AppendElement(aManager);
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// If shutdown has already begun then immediately destroy the actor.
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if (mShutdown) {
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Unused << PClientManagerParent::Send__delete__(aManager);
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}
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}
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void
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ClientManagerService::RemoveManager(ClientManagerParent* aManager)
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{
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AssertIsOnBackgroundThread();
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MOZ_DIAGNOSTIC_ASSERT(aManager);
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DebugOnly<bool> removed = mManagerList.RemoveElement(aManager);
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MOZ_ASSERT(removed);
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}
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RefPtr<ClientOpPromise>
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ClientManagerService::Navigate(const ClientNavigateArgs& aArgs)
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{
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RefPtr<ClientOpPromise> ref;
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ClientSourceParent* source = FindSource(aArgs.target().id(),
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aArgs.target().principalInfo());
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if (!source) {
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ref = ClientOpPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
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return ref.forget();
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}
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PClientManagerParent* manager = source->Manager();
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MOZ_DIAGNOSTIC_ASSERT(manager);
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ClientNavigateOpConstructorArgs args;
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args.url() = aArgs.url();
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args.baseURL() = aArgs.baseURL();
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// This is safe to do because the ClientSourceChild cannot directly delete
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// itself. Instead it sends a Teardown message to the parent which then
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// calls delete. That means we can be sure that we are not racing with
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// source destruction here.
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args.targetParent() = source;
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RefPtr<ClientOpPromise::Private> promise =
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new ClientOpPromise::Private(__func__);
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ClientNavigateOpParent* op = new ClientNavigateOpParent(args, promise);
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PClientNavigateOpParent* result =
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manager->SendPClientNavigateOpConstructor(op, args);
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if (!result) {
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promise->Reject(NS_ERROR_FAILURE, __func__);
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ref = promise;
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return ref.forget();
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}
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ref = promise;
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return ref.forget();
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}
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namespace
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{
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class PromiseListHolder final
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{
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RefPtr<ClientOpPromise::Private> mResultPromise;
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nsTArray<RefPtr<ClientOpPromise>> mPromiseList;
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nsTArray<ClientInfoAndState> mResultList;
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uint32_t mOutstandingPromiseCount;
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void
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ProcessSuccess(const ClientInfoAndState& aResult)
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{
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mResultList.AppendElement(aResult);
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ProcessCompletion();
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}
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void
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ProcessCompletion()
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{
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MOZ_DIAGNOSTIC_ASSERT(mOutstandingPromiseCount > 0);
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mOutstandingPromiseCount -= 1;
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MaybeFinish();
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}
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~PromiseListHolder() = default;
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public:
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PromiseListHolder()
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: mResultPromise(new ClientOpPromise::Private(__func__))
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, mOutstandingPromiseCount(0)
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{
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}
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already_AddRefed<ClientOpPromise>
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GetResultPromise()
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{
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RefPtr<PromiseListHolder> kungFuDeathGrip = this;
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mResultPromise->Then(
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GetCurrentThreadSerialEventTarget(), __func__,
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[kungFuDeathGrip] (const ClientOpResult& aResult) { },
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[kungFuDeathGrip] (nsresult aResult) { });
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RefPtr<ClientOpPromise> ref = mResultPromise;
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return ref.forget();
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}
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void
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AddPromise(RefPtr<ClientOpPromise>&& aPromise)
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{
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mPromiseList.AppendElement(std::move(aPromise));
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MOZ_DIAGNOSTIC_ASSERT(mPromiseList.LastElement());
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mOutstandingPromiseCount += 1;
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RefPtr<PromiseListHolder> self(this);
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mPromiseList.LastElement()->Then(
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GetCurrentThreadSerialEventTarget(), __func__,
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[self] (const ClientOpResult& aResult) {
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// TODO: This is pretty clunky. Try to figure out a better
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// wait for MatchAll() and Claim() to share this code
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// even though they expect different return values.
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if (aResult.type() == ClientOpResult::TClientInfoAndState) {
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self->ProcessSuccess(aResult.get_ClientInfoAndState());
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} else {
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self->ProcessCompletion();
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}
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}, [self] (nsresult aResult) {
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self->ProcessCompletion();
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});
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}
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void
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MaybeFinish()
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{
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if (!mOutstandingPromiseCount) {
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mResultPromise->Resolve(mResultList, __func__);
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}
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}
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NS_INLINE_DECL_REFCOUNTING(PromiseListHolder)
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};
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} // anonymous namespace
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RefPtr<ClientOpPromise>
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ClientManagerService::MatchAll(const ClientMatchAllArgs& aArgs)
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{
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AssertIsOnBackgroundThread();
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ServiceWorkerDescriptor swd(aArgs.serviceWorker());
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const PrincipalInfo& principalInfo = swd.PrincipalInfo();
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RefPtr<PromiseListHolder> promiseList = new PromiseListHolder();
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for (auto iter = mSourceTable.Iter(); !iter.Done(); iter.Next()) {
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ClientSourceParent* source = iter.UserData();
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MOZ_DIAGNOSTIC_ASSERT(source);
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if (source->IsFrozen() || !source->ExecutionReady()) {
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continue;
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}
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if (aArgs.type() != ClientType::All &&
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source->Info().Type() != aArgs.type()) {
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continue;
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}
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if (!ClientMatchPrincipalInfo(source->Info().PrincipalInfo(), principalInfo)) {
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continue;
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}
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if (!aArgs.includeUncontrolled()) {
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const Maybe<ServiceWorkerDescriptor>& controller =
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source->GetController();
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if (controller.isNothing()) {
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continue;
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}
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if(controller.ref().Id() != swd.Id() ||
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controller.ref().Scope() != swd.Scope()) {
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continue;
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}
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}
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promiseList->AddPromise(
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source->StartOp(ClientGetInfoAndStateArgs(source->Info().Id(),
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source->Info().PrincipalInfo())));
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}
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// Maybe finish the promise now in case we didn't find any matching clients.
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promiseList->MaybeFinish();
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return promiseList->GetResultPromise();
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}
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namespace {
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RefPtr<ClientOpPromise>
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ClaimOnMainThread(const ClientInfo& aClientInfo,
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const ServiceWorkerDescriptor& aDescriptor)
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{
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RefPtr<ClientOpPromise::Private> promise =
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new ClientOpPromise::Private(__func__);
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nsCOMPtr<nsIRunnable> r = NS_NewRunnableFunction(__func__,
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[promise, clientInfo = std::move(aClientInfo), desc = std::move(aDescriptor)] () {
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auto scopeExit = MakeScopeExit([&] {
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promise->Reject(NS_ERROR_DOM_INVALID_STATE_ERR, __func__);
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});
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RefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance();
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NS_ENSURE_TRUE_VOID(swm);
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RefPtr<GenericPromise> inner = swm->MaybeClaimClient(clientInfo, desc);
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inner->Then(SystemGroup::EventTargetFor(TaskCategory::Other), __func__,
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[promise] (bool aResult) {
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promise->Resolve(NS_OK, __func__);
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}, [promise] (nsresult aRv) {
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promise->Reject(aRv, __func__);
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});
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scopeExit.release();
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});
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MOZ_ALWAYS_SUCCEEDS(SystemGroup::Dispatch(TaskCategory::Other, r.forget()));
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return promise.forget();
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}
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} // anonymous namespace
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RefPtr<ClientOpPromise>
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ClientManagerService::Claim(const ClientClaimArgs& aArgs)
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{
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AssertIsOnBackgroundThread();
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const IPCServiceWorkerDescriptor& serviceWorker = aArgs.serviceWorker();
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const PrincipalInfo& principalInfo = serviceWorker.principalInfo();
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RefPtr<PromiseListHolder> promiseList = new PromiseListHolder();
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for (auto iter = mSourceTable.Iter(); !iter.Done(); iter.Next()) {
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ClientSourceParent* source = iter.UserData();
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MOZ_DIAGNOSTIC_ASSERT(source);
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if (source->IsFrozen()) {
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continue;
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}
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if (!ClientMatchPrincipalInfo(source->Info().PrincipalInfo(), principalInfo)) {
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continue;
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}
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const Maybe<ServiceWorkerDescriptor>& controller = source->GetController();
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if (controller.isSome() &&
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controller.ref().Scope() == serviceWorker.scope() &&
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controller.ref().Id() == serviceWorker.id()) {
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continue;
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}
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// TODO: This logic to determine if a service worker should control
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// a particular client should be moved to the ServiceWorkerManager.
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// This can't happen until the SWM is moved to the parent process,
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// though.
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if (!source->ExecutionReady() ||
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source->Info().Type() == ClientType::Serviceworker ||
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source->Info().URL().Find(serviceWorker.scope()) != 0) {
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continue;
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}
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if (ServiceWorkerParentInterceptEnabled()) {
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promiseList->AddPromise(
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ClaimOnMainThread(source->Info(),
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ServiceWorkerDescriptor(serviceWorker)));
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} else {
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promiseList->AddPromise(source->StartOp(aArgs));
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}
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}
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// Maybe finish the promise now in case we didn't find any matching clients.
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promiseList->MaybeFinish();
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return promiseList->GetResultPromise();
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}
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RefPtr<ClientOpPromise>
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ClientManagerService::GetInfoAndState(const ClientGetInfoAndStateArgs& aArgs)
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{
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ClientSourceParent* source = FindSource(aArgs.id(), aArgs.principalInfo());
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if (!source) {
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RefPtr<ClientOpPromise> ref =
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ClientOpPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
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return ref.forget();
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}
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if (!source->ExecutionReady()) {
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RefPtr<ClientManagerService> self = this;
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|
|
// rejection ultimately converted to `undefined` in Clients::Get
|
|
RefPtr<ClientOpPromise> ref =
|
|
source->ExecutionReadyPromise()
|
|
->Then(GetCurrentThreadSerialEventTarget(), __func__,
|
|
[self, aArgs] () -> RefPtr<ClientOpPromise> {
|
|
ClientSourceParent* source = self->FindSource(aArgs.id(),
|
|
aArgs.principalInfo());
|
|
|
|
if (!source) {
|
|
RefPtr<ClientOpPromise> ref =
|
|
ClientOpPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
|
|
return ref.forget();
|
|
}
|
|
|
|
return source->StartOp(aArgs);
|
|
});
|
|
|
|
return ref.forget();
|
|
}
|
|
|
|
return source->StartOp(aArgs);
|
|
}
|
|
|
|
namespace {
|
|
|
|
class OpenWindowRunnable final : public Runnable
|
|
{
|
|
RefPtr<ClientOpPromise::Private> mPromise;
|
|
const ClientOpenWindowArgs mArgs;
|
|
RefPtr<ContentParent> mSourceProcess;
|
|
|
|
~OpenWindowRunnable()
|
|
{
|
|
NS_ReleaseOnMainThreadSystemGroup(mSourceProcess.forget());
|
|
}
|
|
|
|
public:
|
|
OpenWindowRunnable(ClientOpPromise::Private* aPromise,
|
|
const ClientOpenWindowArgs& aArgs,
|
|
already_AddRefed<ContentParent> aSourceProcess)
|
|
: Runnable("ClientManagerService::OpenWindowRunnable")
|
|
, mPromise(aPromise)
|
|
, mArgs(aArgs)
|
|
, mSourceProcess(aSourceProcess)
|
|
{
|
|
MOZ_DIAGNOSTIC_ASSERT(mPromise);
|
|
}
|
|
|
|
NS_IMETHOD
|
|
Run() override
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
|
|
if (!BrowserTabsRemoteAutostart()) {
|
|
RefPtr<ClientOpPromise> p = ClientOpenWindowInCurrentProcess(mArgs);
|
|
p->ChainTo(mPromise.forget(), __func__);
|
|
return NS_OK;
|
|
}
|
|
|
|
RefPtr<ContentParent> targetProcess;
|
|
|
|
// Possibly try to open the window in the same process that called
|
|
// openWindow(). This is a temporary compat setting until the
|
|
// multi-e10s service worker refactor is complete.
|
|
if (Preferences::GetBool("dom.clients.openwindow_favors_same_process",
|
|
false)) {
|
|
targetProcess = mSourceProcess;
|
|
}
|
|
|
|
// Otherwise, use our normal remote process selection mechanism for
|
|
// opening the window. This will start a process if one is not
|
|
// present.
|
|
if (!targetProcess) {
|
|
targetProcess =
|
|
ContentParent::GetNewOrUsedBrowserProcess(nullptr,
|
|
NS_LITERAL_STRING(DEFAULT_REMOTE_TYPE),
|
|
ContentParent::GetInitialProcessPriority(nullptr),
|
|
nullptr);
|
|
}
|
|
|
|
// But starting a process can failure for any number of reasons. Reject the
|
|
// promise if we could not.
|
|
if (!targetProcess) {
|
|
mPromise->Reject(NS_ERROR_ABORT, __func__);
|
|
mPromise = nullptr;
|
|
return NS_OK;
|
|
}
|
|
|
|
ClientOpenWindowOpParent* actor =
|
|
new ClientOpenWindowOpParent(mArgs, mPromise);
|
|
|
|
// If this fails the actor will be automatically destroyed which will
|
|
// reject the promise.
|
|
Unused << targetProcess->SendPClientOpenWindowOpConstructor(actor, mArgs);
|
|
|
|
return NS_OK;
|
|
}
|
|
};
|
|
|
|
} // anonymous namespace
|
|
|
|
RefPtr<ClientOpPromise>
|
|
ClientManagerService::OpenWindow(const ClientOpenWindowArgs& aArgs,
|
|
already_AddRefed<ContentParent> aSourceProcess)
|
|
{
|
|
RefPtr<ClientOpPromise::Private> promise =
|
|
new ClientOpPromise::Private(__func__);
|
|
|
|
nsCOMPtr<nsIRunnable> r = new OpenWindowRunnable(promise, aArgs,
|
|
std::move(aSourceProcess));
|
|
MOZ_ALWAYS_SUCCEEDS(SystemGroup::Dispatch(TaskCategory::Other,
|
|
r.forget()));
|
|
|
|
RefPtr<ClientOpPromise> ref = promise;
|
|
return ref.forget();
|
|
}
|
|
|
|
} // namespace dom
|
|
} // namespace mozilla
|