gecko-dev/dom/performance/PerformanceResourceTiming.cpp
Nika Layzell bfebcdae69 Bug 1837090 - Support [NeedsSubjectPrincipal] on workers, r=peterv
We've supported nsIPrincipal off-main-thread since bug 1443925, and
nsIPrincipal has been used as the JSPrincipals on workers and worklets
since bug 1804093.

This change updates the signature of these methods to match the main
thread, and provides the subject principal off-main-thread as well as on
the main thread.

Differential Revision: https://phabricator.services.mozilla.com/D180158
2023-06-07 15:58:51 +00:00

134 lines
4.8 KiB
C++

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