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gecko-dev/dom/ipc/WindowGlobalParent.cpp

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42 KiB
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/* -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 8 -*- */
/* vim: set sw=2 ts=8 et tw=80 ft=cpp : */
/* 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/WindowGlobalParent.h"
#include <algorithm>
#include "mozilla/AsyncEventDispatcher.h"
#include "mozilla/ClearOnShutdown.h"
#include "mozilla/dom/InProcessParent.h"
#include "mozilla/dom/BrowserBridgeParent.h"
#include "mozilla/dom/BrowsingContextGroup.h"
#include "mozilla/dom/CanonicalBrowsingContext.h"
#include "mozilla/dom/ClientInfo.h"
#include "mozilla/dom/ClientIPCTypes.h"
#include "mozilla/dom/ContentChild.h"
#include "mozilla/dom/ContentParent.h"
#include "mozilla/dom/BrowserHost.h"
#include "mozilla/dom/BrowserParent.h"
#include "mozilla/dom/MediaController.h"
#include "mozilla/dom/RemoteWebProgress.h"
#include "mozilla/dom/WindowGlobalChild.h"
#include "mozilla/dom/ChromeUtils.h"
#include "mozilla/dom/ipc/IdType.h"
#include "mozilla/dom/ipc/StructuredCloneData.h"
#include "mozilla/ScopeExit.h"
#include "mozilla/ServoCSSParser.h"
#include "mozilla/ServoStyleSet.h"
#include "mozilla/StaticPrefs_network.h"
#include "mozilla/Telemetry.h"
#include "mozilla/Variant.h"
#include "mozJSComponentLoader.h"
#include "nsContentUtils.h"
#include "nsDocShell.h"
#include "nsDocShellLoadState.h"
#include "nsError.h"
#include "nsFrameLoader.h"
#include "nsFrameLoaderOwner.h"
#include "nsGlobalWindowInner.h"
#include "nsQueryObject.h"
#include "nsFrameLoaderOwner.h"
#include "nsNetUtil.h"
#include "nsSerializationHelper.h"
#include "nsIBrowser.h"
#include "nsIPromptCollection.h"
#include "nsITimer.h"
#include "nsITransportSecurityInfo.h"
#include "nsISharePicker.h"
#include "mozilla/Telemetry.h"
#include "mozilla/dom/DOMException.h"
#include "mozilla/dom/DOMExceptionBinding.h"
#include "mozilla/dom/JSActorService.h"
#include "mozilla/dom/JSWindowActorBinding.h"
#include "mozilla/dom/JSWindowActorParent.h"
using namespace mozilla::ipc;
using namespace mozilla::dom::ipc;
extern mozilla::LazyLogModule gUseCountersLog;
namespace mozilla::dom {
WindowGlobalParent::WindowGlobalParent(
CanonicalBrowsingContext* aBrowsingContext, uint64_t aInnerWindowId,
uint64_t aOuterWindowId, bool aInProcess, FieldValues&& aInit)
: WindowContext(aBrowsingContext, aInnerWindowId, aOuterWindowId,
aInProcess, std::move(aInit)),
mIsInitialDocument(false),
mSandboxFlags(0),
mDocumentHasLoaded(false),
mDocumentHasUserInteracted(false),
mBlockAllMixedContent(false),
mUpgradeInsecureRequests(false) {
MOZ_DIAGNOSTIC_ASSERT(XRE_IsParentProcess(), "Parent process only");
}
already_AddRefed<WindowGlobalParent> WindowGlobalParent::CreateDisconnected(
const WindowGlobalInit& aInit, bool aInProcess) {
RefPtr<CanonicalBrowsingContext> browsingContext =
CanonicalBrowsingContext::Get(aInit.context().mBrowsingContextId);
if (NS_WARN_IF(!browsingContext)) {
return nullptr;
}
RefPtr<WindowGlobalParent> wgp =
GetByInnerWindowId(aInit.context().mInnerWindowId);
MOZ_RELEASE_ASSERT(!wgp, "Creating duplicate WindowGlobalParent");
FieldValues fields(aInit.context().mFields);
wgp = new WindowGlobalParent(browsingContext, aInit.context().mInnerWindowId,
aInit.context().mOuterWindowId, aInProcess,
std::move(fields));
wgp->mDocumentPrincipal = aInit.principal();
wgp->mDocumentURI = aInit.documentURI();
wgp->mDocContentBlockingAllowListPrincipal =
aInit.contentBlockingAllowListPrincipal();
wgp->mBlockAllMixedContent = aInit.blockAllMixedContent();
wgp->mUpgradeInsecureRequests = aInit.upgradeInsecureRequests();
wgp->mSandboxFlags = aInit.sandboxFlags();
wgp->mHttpsOnlyStatus = aInit.httpsOnlyStatus();
wgp->mSecurityInfo = aInit.securityInfo();
net::CookieJarSettings::Deserialize(aInit.cookieJarSettings(),
getter_AddRefs(wgp->mCookieJarSettings));
MOZ_RELEASE_ASSERT(wgp->mDocumentPrincipal, "Must have a valid principal");
return wgp.forget();
}
void WindowGlobalParent::Init() {
MOZ_ASSERT(Manager(), "Should have a manager!");
// Invoke our base class' `Init` method. This will register us in
// `gWindowContexts`.
WindowContext::Init();
// Determine which content process the window global is coming from.
dom::ContentParentId processId(0);
ContentParent* cp = nullptr;
if (!IsInProcess()) {
cp = static_cast<ContentParent*>(Manager()->Manager());
processId = cp->ChildID();
// Ensure the content process has permissions for this principal.
cp->TransmitPermissionsForPrincipal(mDocumentPrincipal);
}
MOZ_DIAGNOSTIC_ASSERT(
!BrowsingContext()->GetParent() ||
BrowsingContext()->GetEmbedderInnerWindowId(),
"When creating a non-root WindowGlobalParent, the WindowGlobalParent "
"for our embedder should've already been created.");
// Ensure we have a document URI
if (!mDocumentURI) {
NS_NewURI(getter_AddRefs(mDocumentURI), "about:blank");
}
// NOTE: `cp` may be nullptr, but that's OK, we need to tell every other
// process in our group in that case.
IPCInitializer ipcinit = GetIPCInitializer();
Group()->EachOtherParent(cp, [&](ContentParent* otherContent) {
Unused << otherContent->SendCreateWindowContext(ipcinit);
});
if (!BrowsingContext()->IsDiscarded()) {
MOZ_ALWAYS_SUCCEEDS(
BrowsingContext()->SetCurrentInnerWindowId(InnerWindowId()));
}
nsCOMPtr<nsIObserverService> obs = services::GetObserverService();
if (obs) {
obs->NotifyObservers(ToSupports(this), "window-global-created", nullptr);
}
if (!BrowsingContext()->IsDiscarded() && ShouldTrackSiteOriginTelemetry()) {
mOriginCounter.emplace();
mOriginCounter->UpdateSiteOriginsFrom(this, /* aIncrease = */ true);
}
}
void WindowGlobalParent::OriginCounter::UpdateSiteOriginsFrom(
WindowGlobalParent* aParent, bool aIncrease) {
MOZ_RELEASE_ASSERT(aParent);
if (aParent->DocumentPrincipal()->GetIsContentPrincipal()) {
nsAutoCString origin;
aParent->DocumentPrincipal()->GetSiteOrigin(origin);
if (aIncrease) {
int32_t& count = mOriginMap.GetOrInsert(origin);
count += 1;
mMaxOrigins = std::max(mMaxOrigins, mOriginMap.Count());
} else if (auto entry = mOriginMap.Lookup(origin)) {
entry.Data() -= 1;
if (entry.Data() == 0) {
entry.Remove();
}
}
}
}
void WindowGlobalParent::OriginCounter::Accumulate() {
mozilla::Telemetry::Accumulate(
mozilla::Telemetry::HistogramID::
FX_NUMBER_OF_UNIQUE_SITE_ORIGINS_PER_DOCUMENT,
mMaxOrigins);
mMaxOrigins = 0;
mOriginMap.Clear();
}
/* static */
already_AddRefed<WindowGlobalParent> WindowGlobalParent::GetByInnerWindowId(
uint64_t aInnerWindowId) {
if (!XRE_IsParentProcess()) {
return nullptr;
}
return WindowContext::GetById(aInnerWindowId).downcast<WindowGlobalParent>();
}
already_AddRefed<WindowGlobalChild> WindowGlobalParent::GetChildActor() {
if (!CanSend()) {
return nullptr;
}
IProtocol* otherSide = InProcessParent::ChildActorFor(this);
return do_AddRef(static_cast<WindowGlobalChild*>(otherSide));
}
already_AddRefed<BrowserParent> WindowGlobalParent::GetBrowserParent() {
if (IsInProcess() || !CanSend()) {
return nullptr;
}
return do_AddRef(static_cast<BrowserParent*>(Manager()));
}
ContentParent* WindowGlobalParent::GetContentParent() {
if (IsInProcess() || !CanSend()) {
return nullptr;
}
return static_cast<ContentParent*>(Manager()->Manager());
}
already_AddRefed<nsFrameLoader> WindowGlobalParent::GetRootFrameLoader() {
dom::BrowsingContext* top = BrowsingContext()->Top();
RefPtr<nsFrameLoaderOwner> frameLoaderOwner =
do_QueryObject(top->GetEmbedderElement());
if (frameLoaderOwner) {
return frameLoaderOwner->GetFrameLoader();
}
return nullptr;
}
uint64_t WindowGlobalParent::ContentParentId() {
RefPtr<BrowserParent> browserParent = GetBrowserParent();
return browserParent ? browserParent->Manager()->ChildID() : 0;
}
int32_t WindowGlobalParent::OsPid() {
RefPtr<BrowserParent> browserParent = GetBrowserParent();
return browserParent ? browserParent->Manager()->Pid() : -1;
}
// A WindowGlobalPaernt is the root in its process if it has no parent, or its
// embedder is in a different process.
bool WindowGlobalParent::IsProcessRoot() {
if (!BrowsingContext()->GetParent()) {
return true;
}
RefPtr<WindowGlobalParent> embedder =
BrowsingContext()->GetEmbedderWindowGlobal();
if (NS_WARN_IF(!embedder)) {
return false;
}
return ContentParentId() != embedder->ContentParentId();
}
uint32_t WindowGlobalParent::ContentBlockingEvents() {
return GetContentBlockingLog()->GetContentBlockingEventsInLog();
}
void WindowGlobalParent::GetContentBlockingLog(nsAString& aLog) {
NS_ConvertUTF8toUTF16 log(GetContentBlockingLog()->Stringify());
aLog.Assign(std::move(log));
}
mozilla::ipc::IPCResult WindowGlobalParent::RecvLoadURI(
const MaybeDiscarded<dom::BrowsingContext>& aTargetBC,
nsDocShellLoadState* aLoadState, bool aSetNavigating) {
if (aTargetBC.IsNullOrDiscarded()) {
MOZ_LOG(
BrowsingContext::GetLog(), LogLevel::Debug,
("ParentIPC: Trying to send a message with dead or detached context"));
return IPC_OK();
}
CanonicalBrowsingContext* targetBC = aTargetBC.get_canonical();
// FIXME: For cross-process loads, we should double check CanAccess() for the
// source browsing context in the parent process.
if (targetBC->Group() != BrowsingContext()->Group()) {
return IPC_FAIL(this, "Illegal cross-group BrowsingContext load");
}
// FIXME: We should really initiate the load in the parent before bouncing
// back down to the child.
targetBC->LoadURI(aLoadState, aSetNavigating);
return IPC_OK();
}
mozilla::ipc::IPCResult WindowGlobalParent::RecvInternalLoad(
nsDocShellLoadState* aLoadState) {
if (!aLoadState->Target().IsEmpty() ||
aLoadState->TargetBrowsingContext().IsNull()) {
return IPC_FAIL(this, "must already be retargeted");
}
if (aLoadState->TargetBrowsingContext().IsDiscarded()) {
MOZ_LOG(
BrowsingContext::GetLog(), LogLevel::Debug,
("ParentIPC: Trying to send a message with dead or detached context"));
return IPC_OK();
}
CanonicalBrowsingContext* targetBC =
aLoadState->TargetBrowsingContext().get_canonical();
// FIXME: For cross-process loads, we should double check CanAccess() for the
// source browsing context in the parent process.
if (targetBC->Group() != BrowsingContext()->Group()) {
return IPC_FAIL(this, "Illegal cross-group BrowsingContext load");
}
// FIXME: We should really initiate the load in the parent before bouncing
// back down to the child.
targetBC->InternalLoad(aLoadState);
return IPC_OK();
}
IPCResult WindowGlobalParent::RecvUpdateDocumentURI(nsIURI* aURI) {
// XXX(nika): Assert that the URI change was one which makes sense (either
// about:blank -> a real URI, or a legal push/popstate URI change?)
mDocumentURI = aURI;
return IPC_OK();
}
IPCResult WindowGlobalParent::RecvUpdateDocumentPrincipal(
nsIPrincipal* aNewDocumentPrincipal) {
if (!mDocumentPrincipal->Equals(aNewDocumentPrincipal)) {
return IPC_FAIL(this,
"Trying to reuse WindowGlobalParent but the principal of "
"the new document does not match the old one");
}
mDocumentPrincipal = aNewDocumentPrincipal;
return IPC_OK();
}
mozilla::ipc::IPCResult WindowGlobalParent::RecvUpdateDocumentTitle(
const nsString& aTitle) {
if (mDocumentTitle == aTitle) {
return IPC_OK();
}
mDocumentTitle = aTitle;
// Send a pagetitlechanged event only for changes to the title
// for top-level frames.
if (!BrowsingContext()->IsTop()) {
return IPC_OK();
}
// Notify media controller in order to update its default metadata.
if (BrowsingContext()->HasCreatedMediaController()) {
BrowsingContext()->GetMediaController()->NotifyPageTitleChanged();
}
Element* frameElement = BrowsingContext()->GetEmbedderElement();
if (!frameElement) {
return IPC_OK();
}
(new AsyncEventDispatcher(frameElement, u"pagetitlechanged"_ns,
CanBubble::eYes, ChromeOnlyDispatch::eYes))
->RunDOMEventWhenSafe();
return IPC_OK();
}
mozilla::ipc::IPCResult WindowGlobalParent::RecvUpdateHttpsOnlyStatus(
uint32_t aHttpsOnlyStatus) {
mHttpsOnlyStatus = aHttpsOnlyStatus;
return IPC_OK();
}
IPCResult WindowGlobalParent::RecvUpdateDocumentHasLoaded(
bool aDocumentHasLoaded) {
mDocumentHasLoaded = aDocumentHasLoaded;
return IPC_OK();
}
IPCResult WindowGlobalParent::RecvUpdateDocumentHasUserInteracted(
bool aDocumentHasUserInteracted) {
mDocumentHasUserInteracted = aDocumentHasUserInteracted;
return IPC_OK();
}
IPCResult WindowGlobalParent::RecvUpdateSandboxFlags(uint32_t aSandboxFlags) {
mSandboxFlags = aSandboxFlags;
return IPC_OK();
}
IPCResult WindowGlobalParent::RecvUpdateDocumentCspSettings(
bool aBlockAllMixedContent, bool aUpgradeInsecureRequests) {
mBlockAllMixedContent = aBlockAllMixedContent;
mUpgradeInsecureRequests = aUpgradeInsecureRequests;
return IPC_OK();
}
mozilla::ipc::IPCResult WindowGlobalParent::RecvSetClientInfo(
const IPCClientInfo& aIPCClientInfo) {
mClientInfo = Some(ClientInfo(aIPCClientInfo));
return IPC_OK();
}
IPCResult WindowGlobalParent::RecvDestroy() {
// Make a copy so that we can avoid potential iterator invalidation when
// calling the user-provided Destroy() methods.
JSActorWillDestroy();
if (CanSend()) {
RefPtr<BrowserParent> browserParent = GetBrowserParent();
if (!browserParent || !browserParent->IsDestroyed()) {
Unused << Send__delete__(this);
}
}
return IPC_OK();
}
IPCResult WindowGlobalParent::RecvRawMessage(
const JSActorMessageMeta& aMeta, const Maybe<ClonedMessageData>& aData,
const Maybe<ClonedMessageData>& aStack) {
Maybe<StructuredCloneData> data;
if (aData) {
data.emplace();
data->BorrowFromClonedMessageDataForParent(*aData);
}
Maybe<StructuredCloneData> stack;
if (aStack) {
stack.emplace();
stack->BorrowFromClonedMessageDataForParent(*aStack);
}
ReceiveRawMessage(aMeta, std::move(data), std::move(stack));
return IPC_OK();
}
const nsACString& WindowGlobalParent::GetRemoteType() {
if (RefPtr<BrowserParent> browserParent = GetBrowserParent()) {
return browserParent->Manager()->GetRemoteType();
}
return NOT_REMOTE_TYPE;
}
void WindowGlobalParent::NotifyContentBlockingEvent(
uint32_t aEvent, nsIRequest* aRequest, bool aBlocked,
const nsACString& aTrackingOrigin,
const nsTArray<nsCString>& aTrackingFullHashes,
const Maybe<ContentBlockingNotifier::StorageAccessPermissionGrantedReason>&
aReason) {
MOZ_ASSERT(NS_IsMainThread());
DebugOnly<bool> isCookiesBlocked =
aEvent == nsIWebProgressListener::STATE_COOKIES_BLOCKED_TRACKER ||
aEvent == nsIWebProgressListener::STATE_COOKIES_BLOCKED_SOCIALTRACKER ||
(aEvent == nsIWebProgressListener::STATE_COOKIES_BLOCKED_FOREIGN &&
StaticPrefs::network_cookie_rejectForeignWithExceptions_enabled());
MOZ_ASSERT_IF(aBlocked, aReason.isNothing());
MOZ_ASSERT_IF(!isCookiesBlocked, aReason.isNothing());
MOZ_ASSERT_IF(isCookiesBlocked && !aBlocked, aReason.isSome());
MOZ_DIAGNOSTIC_ASSERT(XRE_IsParentProcess());
// TODO: temporarily remove this until we find the root case of Bug 1609144
// MOZ_DIAGNOSTIC_ASSERT_IF(XRE_IsE10sParentProcess(), !IsInProcess());
// Return early if this WindowGlobalParent is in process.
if (IsInProcess()) {
return;
}
Maybe<uint32_t> event = GetContentBlockingLog()->RecordLogParent(
aTrackingOrigin, aEvent, aBlocked, aReason, aTrackingFullHashes);
// Notify the OnContentBlockingEvent if necessary.
if (event) {
if (!GetBrowsingContext()->GetWebProgress()) {
return;
}
nsCOMPtr<nsIWebProgress> webProgress =
new RemoteWebProgress(0, false, BrowsingContext()->IsTopContent());
GetBrowsingContext()->Top()->GetWebProgress()->OnContentBlockingEvent(
webProgress, aRequest, event.value());
}
}
already_AddRefed<JSWindowActorParent> WindowGlobalParent::GetActor(
JSContext* aCx, const nsACString& aName, ErrorResult& aRv) {
return JSActorManager::GetActor(aCx, aName, aRv)
.downcast<JSWindowActorParent>();
}
already_AddRefed<JSActor> WindowGlobalParent::InitJSActor(
JS::HandleObject aMaybeActor, const nsACString& aName, ErrorResult& aRv) {
RefPtr<JSWindowActorParent> actor;
if (aMaybeActor.get()) {
aRv = UNWRAP_OBJECT(JSWindowActorParent, aMaybeActor.get(), actor);
if (aRv.Failed()) {
return nullptr;
}
} else {
actor = new JSWindowActorParent();
}
MOZ_RELEASE_ASSERT(!actor->GetManager(),
"mManager was already initialized once!");
actor->Init(aName, this);
return actor.forget();
}
bool WindowGlobalParent::IsCurrentGlobal() {
return CanSend() && BrowsingContext()->GetCurrentWindowGlobal() == this;
}
namespace {
class ShareHandler final : public PromiseNativeHandler {
public:
explicit ShareHandler(
mozilla::dom::WindowGlobalParent::ShareResolver&& aResolver)
: mResolver(std::move(aResolver)) {}
NS_DECL_ISUPPORTS
public:
virtual void ResolvedCallback(JSContext* aCx,
JS::Handle<JS::Value> aValue) override {
mResolver(NS_OK);
}
virtual void RejectedCallback(JSContext* aCx,
JS::Handle<JS::Value> aValue) override {
if (NS_WARN_IF(!aValue.isObject())) {
mResolver(NS_ERROR_FAILURE);
return;
}
// nsresult is stored as Exception internally in Promise
JS::Rooted<JSObject*> obj(aCx, &aValue.toObject());
RefPtr<DOMException> unwrapped;
nsresult rv = UNWRAP_OBJECT(DOMException, &obj, unwrapped);
if (NS_WARN_IF(NS_FAILED(rv))) {
mResolver(NS_ERROR_FAILURE);
return;
}
mResolver(unwrapped->GetResult());
}
private:
~ShareHandler() = default;
mozilla::dom::WindowGlobalParent::ShareResolver mResolver;
};
NS_IMPL_ISUPPORTS0(ShareHandler)
} // namespace
mozilla::ipc::IPCResult WindowGlobalParent::RecvGetContentBlockingEvents(
WindowGlobalParent::GetContentBlockingEventsResolver&& aResolver) {
uint32_t events = GetContentBlockingLog()->GetContentBlockingEventsInLog();
aResolver(events);
return IPC_OK();
}
mozilla::ipc::IPCResult WindowGlobalParent::RecvUpdateCookieJarSettings(
const CookieJarSettingsArgs& aCookieJarSettingsArgs) {
net::CookieJarSettings::Deserialize(aCookieJarSettingsArgs,
getter_AddRefs(mCookieJarSettings));
return IPC_OK();
}
mozilla::ipc::IPCResult WindowGlobalParent::RecvUpdateDocumentSecurityInfo(
nsITransportSecurityInfo* aSecurityInfo) {
mSecurityInfo = aSecurityInfo;
return IPC_OK();
}
mozilla::ipc::IPCResult WindowGlobalParent::RecvShare(
IPCWebShareData&& aData, WindowGlobalParent::ShareResolver&& aResolver) {
// Widget Layer handoff...
nsCOMPtr<nsISharePicker> sharePicker =
do_GetService("@mozilla.org/sharepicker;1");
if (!sharePicker) {
aResolver(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
return IPC_OK();
}
// Initialize the ShareWidget
RefPtr<BrowserParent> parent = GetBrowserParent();
nsCOMPtr<mozIDOMWindowProxy> openerWindow;
if (parent) {
openerWindow = parent->GetParentWindowOuter();
if (!openerWindow) {
aResolver(NS_ERROR_FAILURE);
return IPC_OK();
}
}
sharePicker->Init(openerWindow);
// And finally share the data...
RefPtr<Promise> promise;
nsresult rv = sharePicker->Share(aData.title(), aData.text(), aData.url(),
getter_AddRefs(promise));
if (NS_FAILED(rv)) {
aResolver(rv);
return IPC_OK();
}
// Handler finally awaits response...
RefPtr<ShareHandler> handler = new ShareHandler(std::move(aResolver));
promise->AppendNativeHandler(handler);
return IPC_OK();
}
mozilla::ipc::IPCResult
WindowGlobalParent::RecvUpdateDocumentWouldPreloadResources() {
TopWindowContext()->mDocumentTreeWouldPreloadResources = true;
return IPC_OK();
}
mozilla::ipc::IPCResult WindowGlobalParent::RecvSubmitLoadEventPreloadTelemetry(
TimeStamp aNavigationStart, TimeStamp aLoadEventStart,
TimeStamp aLoadEventEnd) {
if (!IsTop()) {
return IPC_FAIL(this, "submit preload telemetry on non-toplevel document");
}
if (mDocumentTreeWouldPreloadResources) {
Telemetry::AccumulateTimeDelta(
Telemetry::TIME_TO_LOAD_EVENT_START_PRELOAD_MS, aNavigationStart,
aLoadEventStart);
Telemetry::AccumulateTimeDelta(Telemetry::TIME_TO_LOAD_EVENT_END_PRELOAD_MS,
aNavigationStart, aLoadEventEnd);
} else {
Telemetry::AccumulateTimeDelta(
Telemetry::TIME_TO_LOAD_EVENT_START_NO_PRELOAD_MS, aNavigationStart,
aLoadEventStart);
Telemetry::AccumulateTimeDelta(
Telemetry::TIME_TO_LOAD_EVENT_END_NO_PRELOAD_MS, aNavigationStart,
aLoadEventEnd);
}
return IPC_OK();
}
mozilla::ipc::IPCResult
WindowGlobalParent::RecvSubmitTimeToFirstInteractionPreloadTelemetry(
uint32_t aMillis) {
if (!IsTop()) {
return IPC_FAIL(this, "submit preload telemetry on non-toplevel document");
}
if (mDocumentTreeWouldPreloadResources) {
Telemetry::Accumulate(Telemetry::TIME_TO_FIRST_INTERACTION_PRELOAD_MS,
aMillis);
} else {
Telemetry::Accumulate(Telemetry::TIME_TO_FIRST_INTERACTION_NO_PRELOAD_MS,
aMillis);
}
return IPC_OK();
}
mozilla::ipc::IPCResult
WindowGlobalParent::RecvSubmitLoadInputEventResponsePreloadTelemetry(
uint32_t aMillis) {
if (!IsTop()) {
return IPC_FAIL(this, "submit preload telemetry on non-toplevel document");
}
if (mDocumentTreeWouldPreloadResources) {
Telemetry::Accumulate(Telemetry::LOAD_INPUT_EVENT_RESPONSE_PRELOAD_MS,
aMillis);
} else {
Telemetry::Accumulate(Telemetry::LOAD_INPUT_EVENT_RESPONSE_NO_PRELOAD_MS,
aMillis);
}
return IPC_OK();
}
namespace {
class CheckPermitUnloadRequest final : public PromiseNativeHandler,
public nsITimerCallback {
public:
CheckPermitUnloadRequest(WindowGlobalParent* aWGP, bool aHasInProcessBlocker,
nsIContentViewer::PermitUnloadAction aAction,
std::function<void(bool)>&& aResolver)
: mResolver(std::move(aResolver)),
mWGP(aWGP),
mAction(aAction),
mFoundBlocker(aHasInProcessBlocker) {}
void Run(ContentParent* aIgnoreProcess = nullptr, uint32_t aTimeout = 0) {
MOZ_ASSERT(mState == State::UNINITIALIZED);
mState = State::WAITING;
RefPtr<CheckPermitUnloadRequest> self(this);
AutoTArray<ContentParent*, 8> seen;
if (aIgnoreProcess) {
seen.AppendElement(aIgnoreProcess);
}
BrowsingContext* bc = mWGP->GetBrowsingContext();
bc->PreOrderWalk([&](dom::BrowsingContext* aBC) {
if (WindowGlobalParent* wgp =
aBC->Canonical()->GetCurrentWindowGlobal()) {
ContentParent* cp = wgp->GetContentParent();
if (wgp->HasBeforeUnload() && !seen.ContainsSorted(cp)) {
seen.InsertElementSorted(cp);
mPendingRequests++;
auto resolve = [self](bool blockNavigation) {
if (blockNavigation) {
self->mFoundBlocker = true;
}
self->ResolveRequest();
};
if (cp) {
cp->SendDispatchBeforeUnloadToSubtree(
bc, resolve, [self](auto) { self->ResolveRequest(); });
} else {
ContentChild::DispatchBeforeUnloadToSubtree(bc, resolve);
}
}
}
});
if (mPendingRequests && aTimeout) {
Unused << NS_NewTimerWithCallback(getter_AddRefs(mTimer), this, aTimeout,
nsITimer::TYPE_ONE_SHOT);
}
CheckDoneWaiting();
}
void ResolveRequest() {
mPendingRequests--;
CheckDoneWaiting();
}
NS_IMETHODIMP Notify(nsITimer* aTimer) override {
MOZ_ASSERT(aTimer == mTimer);
if (mState == State::WAITING) {
mState = State::TIMED_OUT;
CheckDoneWaiting();
}
return NS_OK;
}
void CheckDoneWaiting() {
// If we've found a blocker, we prompt immediately without waiting for
// further responses. The user's response applies to the entire navigation
// attempt, regardless of how many "beforeunload" listeners we call.
if (mState != State::TIMED_OUT &&
(mState != State::WAITING || (mPendingRequests && !mFoundBlocker))) {
return;
}
mState = State::PROMPTING;
// Clearing our reference to the timer will automatically cancel it if it's
// still running.
mTimer = nullptr;
if (!mFoundBlocker) {
SendReply(true);
return;
}
auto action = mAction;
if (StaticPrefs::dom_disable_beforeunload()) {
action = nsIContentViewer::eDontPromptAndUnload;
}
if (action != nsIContentViewer::ePrompt) {
SendReply(action == nsIContentViewer::eDontPromptAndUnload);
return;
}
// Handle any failure in prompting by aborting the navigation. See comment
// in nsContentViewer::PermitUnload for reasoning.
auto cleanup = MakeScopeExit([&]() { SendReply(false); });
if (nsCOMPtr<nsIPromptCollection> prompt =
do_GetService("@mozilla.org/embedcomp/prompt-collection;1")) {
RefPtr<Promise> promise;
prompt->AsyncBeforeUnloadCheck(mWGP->GetBrowsingContext(),
getter_AddRefs(promise));
if (!promise) {
return;
}
promise->AppendNativeHandler(this);
cleanup.release();
}
}
void SendReply(bool aAllow) {
MOZ_ASSERT(mState != State::REPLIED);
mResolver(aAllow);
mState = State::REPLIED;
}
void ResolvedCallback(JSContext* aCx, JS::Handle<JS::Value> aValue) override {
MOZ_ASSERT(mState == State::PROMPTING);
SendReply(JS::ToBoolean(aValue));
}
void RejectedCallback(JSContext* aCx, JS::Handle<JS::Value> aValue) override {
MOZ_ASSERT(mState == State::PROMPTING);
SendReply(false);
}
NS_DECL_ISUPPORTS
private:
~CheckPermitUnloadRequest() {
// We may get here without having sent a reply if the promise we're waiting
// on is destroyed without being resolved or rejected.
if (mState != State::REPLIED) {
SendReply(false);
}
}
enum class State : uint8_t {
UNINITIALIZED,
WAITING,
TIMED_OUT,
PROMPTING,
REPLIED,
};
std::function<void(bool)> mResolver;
RefPtr<WindowGlobalParent> mWGP;
nsCOMPtr<nsITimer> mTimer;
uint32_t mPendingRequests = 0;
nsIContentViewer::PermitUnloadAction mAction;
State mState = State::UNINITIALIZED;
bool mFoundBlocker = false;
};
NS_IMPL_ISUPPORTS(CheckPermitUnloadRequest, nsITimerCallback)
} // namespace
mozilla::ipc::IPCResult WindowGlobalParent::RecvCheckPermitUnload(
bool aHasInProcessBlocker, XPCOMPermitUnloadAction aAction,
CheckPermitUnloadResolver&& aResolver) {
if (!IsCurrentGlobal()) {
aResolver(false);
return IPC_OK();
}
auto request = MakeRefPtr<CheckPermitUnloadRequest>(
this, aHasInProcessBlocker, aAction, std::move(aResolver));
request->Run(/* aIgnoreProcess */ GetContentParent());
return IPC_OK();
}
already_AddRefed<Promise> WindowGlobalParent::PermitUnload(
PermitUnloadAction aAction, uint32_t aTimeout, mozilla::ErrorResult& aRv) {
nsIGlobalObject* global = GetParentObject();
RefPtr<Promise> promise = Promise::Create(global, aRv);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
auto request = MakeRefPtr<CheckPermitUnloadRequest>(
this, /* aHasInProcessBlocker */ false,
nsIContentViewer::PermitUnloadAction(aAction),
[promise](bool aAllow) { promise->MaybeResolve(aAllow); });
request->Run(/* aIgnoreProcess */ nullptr, aTimeout);
return promise.forget();
}
already_AddRefed<mozilla::dom::Promise> WindowGlobalParent::DrawSnapshot(
const DOMRect* aRect, double aScale, const nsACString& aBackgroundColor,
mozilla::ErrorResult& aRv) {
nsIGlobalObject* global = GetParentObject();
RefPtr<Promise> promise = Promise::Create(global, aRv);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
nscolor color;
if (NS_WARN_IF(!ServoCSSParser::ComputeColor(nullptr, NS_RGB(0, 0, 0),
aBackgroundColor, &color,
nullptr, nullptr))) {
aRv = NS_ERROR_FAILURE;
return nullptr;
}
gfx::CrossProcessPaintFlags flags = gfx::CrossProcessPaintFlags::None;
if (!aRect) {
// If no explicit Rect was passed, we want the currently visible viewport.
flags = gfx::CrossProcessPaintFlags::DrawView;
}
if (!gfx::CrossProcessPaint::Start(this, aRect, (float)aScale, color, flags,
promise)) {
aRv = NS_ERROR_FAILURE;
return nullptr;
}
return promise.forget();
}
void WindowGlobalParent::DrawSnapshotInternal(gfx::CrossProcessPaint* aPaint,
const Maybe<IntRect>& aRect,
float aScale,
nscolor aBackgroundColor,
uint32_t aFlags) {
auto promise = SendDrawSnapshot(aRect, aScale, aBackgroundColor, aFlags);
RefPtr<gfx::CrossProcessPaint> paint(aPaint);
RefPtr<WindowGlobalParent> wgp(this);
promise->Then(
GetMainThreadSerialEventTarget(), __func__,
[paint, wgp](PaintFragment&& aFragment) {
paint->ReceiveFragment(wgp, std::move(aFragment));
},
[paint, wgp](ResponseRejectReason&& aReason) {
paint->LostFragment(wgp);
});
}
already_AddRefed<Promise> WindowGlobalParent::GetSecurityInfo(
ErrorResult& aRv) {
RefPtr<BrowserParent> browserParent = GetBrowserParent();
if (NS_WARN_IF(!browserParent)) {
aRv.Throw(NS_ERROR_FAILURE);
return nullptr;
}
nsIGlobalObject* global = GetParentObject();
RefPtr<Promise> promise = Promise::Create(global, aRv);
if (aRv.Failed()) {
return nullptr;
}
SendGetSecurityInfo(
[promise](Maybe<nsCString>&& aResult) {
if (aResult) {
nsCOMPtr<nsISupports> infoObj;
nsresult rv =
NS_DeserializeObject(aResult.value(), getter_AddRefs(infoObj));
if (NS_WARN_IF(NS_FAILED(rv))) {
promise->MaybeReject(NS_ERROR_FAILURE);
}
nsCOMPtr<nsITransportSecurityInfo> info = do_QueryInterface(infoObj);
if (!info) {
promise->MaybeReject(NS_ERROR_FAILURE);
}
promise->MaybeResolve(info);
} else {
promise->MaybeResolveWithUndefined();
}
},
[promise](ResponseRejectReason&& aReason) {
promise->MaybeReject(NS_ERROR_FAILURE);
});
return promise.forget();
}
/**
* Accumulated page use counter data for a given top-level content document.
*/
struct PageUseCounters {
// The number of page use counter data messages we are still waiting for.
uint32_t mWaiting = 0;
// Whether we have received any page use counter data.
bool mReceivedAny = false;
// The accumulated page use counters.
UseCounters mUseCounters;
};
mozilla::ipc::IPCResult WindowGlobalParent::RecvExpectPageUseCounters(
const MaybeDiscarded<WindowContext>& aTop) {
if (aTop.IsNull()) {
return IPC_FAIL(this, "aTop must not be null");
}
MOZ_LOG(gUseCountersLog, LogLevel::Debug,
("Expect page use counters: WindowContext %" PRIu64 " -> %" PRIu64,
InnerWindowId(), aTop.ContextId()));
// We've been called to indicate that the document in our window intends
// to send use counter data to accumulate towards the top-level document's
// page use counters. This causes us to wait for this window to go away
// (in WindowGlobalParent::ActorDestroy) before reporting the page use
// counters via Telemetry.
RefPtr<WindowGlobalParent> page =
static_cast<WindowGlobalParent*>(aTop.GetMaybeDiscarded());
if (!page || page->mSentPageUseCounters) {
MOZ_LOG(gUseCountersLog, LogLevel::Debug,
(" > too late, won't report page use counters for this straggler"));
return IPC_OK();
}
if (mPageUseCountersWindow) {
if (mPageUseCountersWindow != page) {
return IPC_FAIL(this,
"ExpectPageUseCounters called on the same "
"WindowContext with a different aTop value");
}
// We can get called with the same aTop value more than once, e.g. for
// initial about:blank documents and then subsequent "real" documents loaded
// into the same window. We must note each source window only once.
return IPC_OK();
}
// Note that the top-level document must wait for one more window's use
// counters before reporting via Telemetry.
mPageUseCountersWindow = page;
if (!page->mPageUseCounters) {
page->mPageUseCounters = MakeUnique<PageUseCounters>();
}
++page->mPageUseCounters->mWaiting;
MOZ_LOG(
gUseCountersLog, LogLevel::Debug,
(" > top-level now waiting on %d\n", page->mPageUseCounters->mWaiting));
return IPC_OK();
}
mozilla::ipc::IPCResult WindowGlobalParent::RecvAccumulatePageUseCounters(
const UseCounters& aUseCounters) {
// We've been called to accumulate use counter data into the page use counters
// for the document in mPageUseCountersWindow.
MOZ_LOG(
gUseCountersLog, LogLevel::Debug,
("Accumulate page use counters: WindowContext %" PRIu64 " -> %" PRIu64,
InnerWindowId(),
mPageUseCountersWindow ? mPageUseCountersWindow->InnerWindowId() : 0));
if (!mPageUseCountersWindow || mPageUseCountersWindow->mSentPageUseCounters) {
MOZ_LOG(gUseCountersLog, LogLevel::Debug,
(" > too late, won't report page use counters for this straggler"));
return IPC_OK();
}
MOZ_ASSERT(mPageUseCountersWindow->mPageUseCounters);
MOZ_ASSERT(mPageUseCountersWindow->mPageUseCounters->mWaiting > 0);
mPageUseCountersWindow->mPageUseCounters->mUseCounters |= aUseCounters;
mPageUseCountersWindow->mPageUseCounters->mReceivedAny = true;
return IPC_OK();
}
// This is called on the top-level WindowGlobal, i.e. the one that is
// accumulating the page use counters, not the (potentially descendant) window
// that has finished providing use counter data.
void WindowGlobalParent::FinishAccumulatingPageUseCounters() {
MOZ_LOG(gUseCountersLog, LogLevel::Debug,
("Stop expecting page use counters: -> WindowContext %" PRIu64,
InnerWindowId()));
if (!mPageUseCounters) {
MOZ_ASSERT_UNREACHABLE("Not expecting page use counter data");
MOZ_LOG(gUseCountersLog, LogLevel::Debug,
(" > not expecting page use counter data"));
return;
}
MOZ_ASSERT(mPageUseCounters->mWaiting > 0);
--mPageUseCounters->mWaiting;
if (mPageUseCounters->mWaiting > 0) {
MOZ_LOG(gUseCountersLog, LogLevel::Debug,
(" > now waiting on %d", mPageUseCounters->mWaiting));
return;
}
if (mPageUseCounters->mReceivedAny) {
MOZ_LOG(gUseCountersLog, LogLevel::Debug,
(" > reporting [%s]",
nsContentUtils::TruncatedURLForDisplay(mDocumentURI).get()));
Telemetry::Accumulate(Telemetry::TOP_LEVEL_CONTENT_DOCUMENTS_DESTROYED, 1);
for (int32_t c = 0; c < eUseCounter_Count; ++c) {
auto uc = static_cast<UseCounter>(c);
if (!mPageUseCounters->mUseCounters[uc]) {
continue;
}
auto id = static_cast<Telemetry::HistogramID>(
Telemetry::HistogramFirstUseCounter + uc * 2 + 1);
MOZ_LOG(gUseCountersLog, LogLevel::Debug,
(" > %s\n", Telemetry::GetHistogramName(id)));
Telemetry::Accumulate(id, 1);
}
} else {
MOZ_LOG(gUseCountersLog, LogLevel::Debug,
(" > no page use counter data was received"));
}
mSentPageUseCounters = true;
mPageUseCounters = nullptr;
}
void WindowGlobalParent::ActorDestroy(ActorDestroyReason aWhy) {
if (mPageUseCountersWindow) {
mPageUseCountersWindow->FinishAccumulatingPageUseCounters();
mPageUseCountersWindow = nullptr;
}
if (GetBrowsingContext()->IsTopContent() &&
!mDocumentPrincipal->SchemeIs("about")) {
// Record the page load
uint32_t pageLoaded = 1;
Accumulate(Telemetry::MIXED_CONTENT_UNBLOCK_COUNTER, pageLoaded);
// Record the mixed content status of the docshell in Telemetry
enum {
NO_MIXED_CONTENT = 0, // There is no Mixed Content on the page
MIXED_DISPLAY_CONTENT =
1, // The page attempted to load Mixed Display Content
MIXED_ACTIVE_CONTENT =
2, // The page attempted to load Mixed Active Content
MIXED_DISPLAY_AND_ACTIVE_CONTENT = 3 // The page attempted to load Mixed
// Display & Mixed Active Content
};
bool hasMixedDisplay =
mSecurityState &
(nsIWebProgressListener::STATE_LOADED_MIXED_DISPLAY_CONTENT |
nsIWebProgressListener::STATE_BLOCKED_MIXED_DISPLAY_CONTENT);
bool hasMixedActive =
mSecurityState &
(nsIWebProgressListener::STATE_LOADED_MIXED_ACTIVE_CONTENT |
nsIWebProgressListener::STATE_BLOCKED_MIXED_ACTIVE_CONTENT);
uint32_t mixedContentLevel = NO_MIXED_CONTENT;
if (hasMixedDisplay && hasMixedActive) {
mixedContentLevel = MIXED_DISPLAY_AND_ACTIVE_CONTENT;
} else if (hasMixedActive) {
mixedContentLevel = MIXED_ACTIVE_CONTENT;
} else if (hasMixedDisplay) {
mixedContentLevel = MIXED_DISPLAY_CONTENT;
}
Accumulate(Telemetry::MIXED_CONTENT_PAGE_LOAD, mixedContentLevel);
if (GetDocTreeHadMedia()) {
ScalarAdd(Telemetry::ScalarID::MEDIA_ELEMENT_IN_PAGE_COUNT, 1);
}
}
// Note that our WindowContext has become discarded.
WindowContext::Discard();
ContentParent* cp = nullptr;
if (!IsInProcess()) {
cp = static_cast<ContentParent*>(Manager()->Manager());
}
RefPtr<WindowGlobalParent> self(this);
Group()->EachOtherParent(cp, [&](ContentParent* otherContent) {
// Keep the WindowContext alive until other processes have acknowledged it
// has been discarded.
auto resolve = [self](bool) {};
auto reject = [self](mozilla::ipc::ResponseRejectReason) {};
otherContent->SendDiscardWindowContext(InnerWindowId(), resolve, reject);
});
// Report content blocking log when destroyed.
// There shouldn't have any content blocking log when a documnet is loaded in
// the parent process(See NotifyContentBlockingeEvent), so we could skip
// reporting log when it is in-process.
if (!IsInProcess()) {
RefPtr<BrowserParent> browserParent =
static_cast<BrowserParent*>(Manager());
if (browserParent) {
nsCOMPtr<nsILoadContext> loadContext = browserParent->GetLoadContext();
if (loadContext && !loadContext->UsePrivateBrowsing() &&
BrowsingContext()->IsTopContent()) {
GetContentBlockingLog()->ReportLog(DocumentPrincipal());
if (mDocumentURI && (net::SchemeIsHTTP(mDocumentURI) ||
net::SchemeIsHTTPS(mDocumentURI))) {
GetContentBlockingLog()->ReportOrigins();
}
}
}
}
// Destroy our JSWindowActors, and reject any pending queries.
JSActorDidDestroy();
nsCOMPtr<nsIObserverService> obs = services::GetObserverService();
if (obs) {
obs->NotifyObservers(ToSupports(this), "window-global-destroyed", nullptr);
}
if (mOriginCounter) {
mOriginCounter->Accumulate();
}
}
WindowGlobalParent::~WindowGlobalParent() = default;
JSObject* WindowGlobalParent::WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) {
return WindowGlobalParent_Binding::Wrap(aCx, this, aGivenProto);
}
nsIGlobalObject* WindowGlobalParent::GetParentObject() {
return xpc::NativeGlobal(xpc::PrivilegedJunkScope());
}
nsIDOMProcessParent* WindowGlobalParent::GetDomProcess() {
if (RefPtr<BrowserParent> browserParent = GetBrowserParent()) {
return browserParent->Manager();
}
return InProcessParent::Singleton();
}
void WindowGlobalParent::DidBecomeCurrentWindowGlobal(bool aCurrent) {
WindowGlobalParent* top = BrowsingContext()->GetTopWindowContext();
if (top && top->mOriginCounter) {
top->mOriginCounter->UpdateSiteOriginsFrom(this,
/* aIncrease = */ aCurrent);
}
}
bool WindowGlobalParent::ShouldTrackSiteOriginTelemetry() {
CanonicalBrowsingContext* bc = BrowsingContext();
if (!bc->IsTopContent()) {
return false;
}
RefPtr<BrowserParent> browserParent = GetBrowserParent();
if (!browserParent ||
!IsWebRemoteType(browserParent->Manager()->GetRemoteType())) {
return false;
}
return DocumentPrincipal()->GetIsContentPrincipal();
}
void WindowGlobalParent::AddSecurityState(uint32_t aStateFlags) {
MOZ_ASSERT(TopWindowContext() == this);
MOZ_ASSERT((aStateFlags &
(nsIWebProgressListener::STATE_LOADED_MIXED_DISPLAY_CONTENT |
nsIWebProgressListener::STATE_LOADED_MIXED_ACTIVE_CONTENT |
nsIWebProgressListener::STATE_BLOCKED_MIXED_DISPLAY_CONTENT |
nsIWebProgressListener::STATE_BLOCKED_MIXED_ACTIVE_CONTENT |
nsIWebProgressListener::STATE_HTTPS_ONLY_MODE_UPGRADED |
nsIWebProgressListener::STATE_HTTPS_ONLY_MODE_UPGRADE_FAILED)) ==
aStateFlags,
"Invalid flags specified!");
if ((mSecurityState & aStateFlags) == aStateFlags) {
return;
}
mSecurityState |= aStateFlags;
if (GetBrowsingContext()->GetCurrentWindowGlobal() == this) {
GetBrowsingContext()->UpdateSecurityState();
}
}
NS_IMPL_CYCLE_COLLECTION_INHERITED(WindowGlobalParent, WindowContext,
mPageUseCountersWindow)
NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(WindowGlobalParent,
WindowContext)
NS_IMPL_CYCLE_COLLECTION_TRACE_END
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(WindowGlobalParent)
NS_INTERFACE_MAP_END_INHERITING(WindowContext)
NS_IMPL_ADDREF_INHERITED(WindowGlobalParent, WindowContext)
NS_IMPL_RELEASE_INHERITED(WindowGlobalParent, WindowContext)
} // namespace mozilla::dom
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