forked from mirrors/gecko-dev
132 lines
4.7 KiB
C++
132 lines
4.7 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 "PerformanceResourceTiming.h"
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#include "mozilla/dom/PerformanceResourceTimingBinding.h"
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#include "nsNetUtil.h"
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#include "nsArrayUtils.h"
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using namespace mozilla::dom;
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NS_IMPL_CYCLE_COLLECTION_INHERITED(PerformanceResourceTiming, PerformanceEntry,
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mPerformance)
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NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(PerformanceResourceTiming,
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PerformanceEntry)
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NS_IMPL_CYCLE_COLLECTION_TRACE_END
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(PerformanceResourceTiming)
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NS_INTERFACE_MAP_END_INHERITING(PerformanceEntry)
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NS_IMPL_ADDREF_INHERITED(PerformanceResourceTiming, PerformanceEntry)
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NS_IMPL_RELEASE_INHERITED(PerformanceResourceTiming, PerformanceEntry)
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PerformanceResourceTiming::PerformanceResourceTiming(
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UniquePtr<PerformanceTimingData>&& aPerformanceTiming,
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Performance* aPerformance, const nsAString& aName)
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: PerformanceEntry(aPerformance->GetParentObject(), aName, u"resource"_ns),
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mTimingData(std::move(aPerformanceTiming)),
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mPerformance(aPerformance) {
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MOZ_ASSERT(aPerformance, "Parent performance object should be provided");
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if (NS_IsMainThread()) {
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// Used to check if an addon content script has access to this timing.
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// We don't need it in workers, and ignore mOriginalURI if null.
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NS_NewURI(getter_AddRefs(mOriginalURI), aName);
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}
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}
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PerformanceResourceTiming::~PerformanceResourceTiming() = default;
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DOMHighResTimeStamp PerformanceResourceTiming::StartTime() const {
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// Force the start time to be the earliest of:
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// - RedirectStart
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// - WorkerStart
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// - AsyncOpen
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// Ignore zero values. The RedirectStart and WorkerStart values
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// can come from earlier redirected channels prior to the AsyncOpen
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// time being recorded.
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DOMHighResTimeStamp redirect =
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mTimingData->RedirectStartHighRes(mPerformance);
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redirect = redirect ? redirect : DBL_MAX;
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DOMHighResTimeStamp worker = mTimingData->WorkerStartHighRes(mPerformance);
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worker = worker ? worker : DBL_MAX;
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DOMHighResTimeStamp asyncOpen = mTimingData->AsyncOpenHighRes(mPerformance);
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return std::min(asyncOpen, std::min(redirect, worker));
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}
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JSObject* PerformanceResourceTiming::WrapObject(
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JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
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return PerformanceResourceTiming_Binding::Wrap(aCx, this, aGivenProto);
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}
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size_t PerformanceResourceTiming::SizeOfIncludingThis(
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mozilla::MallocSizeOf aMallocSizeOf) const {
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return aMallocSizeOf(this) + SizeOfExcludingThis(aMallocSizeOf);
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}
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size_t PerformanceResourceTiming::SizeOfExcludingThis(
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mozilla::MallocSizeOf aMallocSizeOf) const {
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return PerformanceEntry::SizeOfExcludingThis(aMallocSizeOf) +
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mInitiatorType.SizeOfExcludingThisIfUnshared(aMallocSizeOf) +
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(mTimingData
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? mTimingData->NextHopProtocol().SizeOfExcludingThisIfUnshared(
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aMallocSizeOf)
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: 0);
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}
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void PerformanceResourceTiming::GetServerTiming(
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nsTArray<RefPtr<PerformanceServerTiming>>& aRetval,
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Maybe<nsIPrincipal*>& aSubjectPrincipal) {
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aRetval.Clear();
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if (!TimingAllowedForCaller(aSubjectPrincipal)) {
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return;
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}
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nsTArray<nsCOMPtr<nsIServerTiming>> serverTimingArray =
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mTimingData->GetServerTiming();
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uint32_t length = serverTimingArray.Length();
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for (uint32_t index = 0; index < length; ++index) {
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nsCOMPtr<nsIServerTiming> serverTiming = serverTimingArray.ElementAt(index);
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MOZ_ASSERT(serverTiming);
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aRetval.AppendElement(
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new PerformanceServerTiming(GetParentObject(), serverTiming));
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}
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}
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bool PerformanceResourceTiming::TimingAllowedForCaller(
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Maybe<nsIPrincipal*>& aCaller) const {
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if (!mTimingData) {
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return false;
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}
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if (mTimingData->TimingAllowed()) {
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return true;
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}
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// Check if the addon has permission to access the cross-origin resource.
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return mOriginalURI && aCaller.isSome() &&
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BasePrincipal::Cast(aCaller.value())->AddonAllowsLoad(mOriginalURI);
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}
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bool PerformanceResourceTiming::ReportRedirectForCaller(
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Maybe<nsIPrincipal*>& aCaller) const {
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if (!mTimingData) {
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return false;
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}
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if (mTimingData->ShouldReportCrossOriginRedirect()) {
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return true;
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}
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// Only report cross-origin redirect if the addon has <all_urls> permission.
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return aCaller.isSome() &&
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BasePrincipal::Cast(aCaller.value())
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->AddonHasPermission(nsGkAtoms::all_urlsPermission);
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}
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