forked from mirrors/gecko-dev
8533ddcaac
Changes: - The API now returns a Promise containing a sequence of IOActivityData dictionnaries. - All the code related to notifications and XPCOM is removed. - The counters are no longer reset to 0 when the API is called MozReview-Commit-ID: 7J2EgFqDgf --HG-- extra : rebase_source : eb7dc3e0921b12bbb3715a90863dc8e2a60c1c09
787 lines
22 KiB
C++
787 lines
22 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 "ChromeUtils.h"
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#include "jsfriendapi.h"
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#include "WrapperFactory.h"
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#include "mozilla/Base64.h"
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#include "mozilla/BasePrincipal.h"
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#include "mozilla/CycleCollectedJSRuntime.h"
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#include "mozilla/PerformanceMetricsCollector.h"
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#include "mozilla/Preferences.h"
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#include "mozilla/TimeStamp.h"
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#include "mozilla/dom/ContentParent.h"
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#include "mozilla/dom/IdleDeadline.h"
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#include "mozilla/dom/UnionTypes.h"
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#include "mozilla/dom/WindowBinding.h" // For IdleRequestCallback/Options
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#include "IOActivityMonitor.h"
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#include "nsThreadUtils.h"
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#include "mozJSComponentLoader.h"
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#include "GeckoProfiler.h"
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namespace mozilla {
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namespace dom {
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/* static */ void
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ChromeUtils::NondeterministicGetWeakMapKeys(GlobalObject& aGlobal,
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JS::Handle<JS::Value> aMap,
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JS::MutableHandle<JS::Value> aRetval,
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ErrorResult& aRv)
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{
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if (!aMap.isObject()) {
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aRetval.setUndefined();
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} else {
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JSContext* cx = aGlobal.Context();
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JS::Rooted<JSObject*> objRet(cx);
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JS::Rooted<JSObject*> mapObj(cx, &aMap.toObject());
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if (!JS_NondeterministicGetWeakMapKeys(cx, mapObj, &objRet)) {
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aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
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} else {
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aRetval.set(objRet ? JS::ObjectValue(*objRet) : JS::UndefinedValue());
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}
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}
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}
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/* static */ void
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ChromeUtils::NondeterministicGetWeakSetKeys(GlobalObject& aGlobal,
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JS::Handle<JS::Value> aSet,
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JS::MutableHandle<JS::Value> aRetval,
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ErrorResult& aRv)
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{
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if (!aSet.isObject()) {
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aRetval.setUndefined();
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} else {
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JSContext* cx = aGlobal.Context();
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JS::Rooted<JSObject*> objRet(cx);
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JS::Rooted<JSObject*> setObj(cx, &aSet.toObject());
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if (!JS_NondeterministicGetWeakSetKeys(cx, setObj, &objRet)) {
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aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
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} else {
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aRetval.set(objRet ? JS::ObjectValue(*objRet) : JS::UndefinedValue());
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}
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}
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}
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/* static */ void
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ChromeUtils::Base64URLEncode(GlobalObject& aGlobal,
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const ArrayBufferViewOrArrayBuffer& aSource,
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const Base64URLEncodeOptions& aOptions,
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nsACString& aResult,
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ErrorResult& aRv)
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{
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size_t length = 0;
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uint8_t* data = nullptr;
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if (aSource.IsArrayBuffer()) {
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const ArrayBuffer& buffer = aSource.GetAsArrayBuffer();
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buffer.ComputeLengthAndData();
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length = buffer.Length();
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data = buffer.Data();
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} else if (aSource.IsArrayBufferView()) {
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const ArrayBufferView& view = aSource.GetAsArrayBufferView();
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view.ComputeLengthAndData();
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length = view.Length();
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data = view.Data();
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} else {
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MOZ_CRASH("Uninitialized union: expected buffer or view");
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}
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auto paddingPolicy = aOptions.mPad ? Base64URLEncodePaddingPolicy::Include :
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Base64URLEncodePaddingPolicy::Omit;
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nsresult rv = mozilla::Base64URLEncode(length, data, paddingPolicy, aResult);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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aResult.Truncate();
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aRv.Throw(rv);
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}
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}
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/* static */ void
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ChromeUtils::Base64URLDecode(GlobalObject& aGlobal,
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const nsACString& aString,
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const Base64URLDecodeOptions& aOptions,
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JS::MutableHandle<JSObject*> aRetval,
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ErrorResult& aRv)
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{
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Base64URLDecodePaddingPolicy paddingPolicy;
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switch (aOptions.mPadding) {
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case Base64URLDecodePadding::Require:
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paddingPolicy = Base64URLDecodePaddingPolicy::Require;
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break;
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case Base64URLDecodePadding::Ignore:
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paddingPolicy = Base64URLDecodePaddingPolicy::Ignore;
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break;
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case Base64URLDecodePadding::Reject:
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paddingPolicy = Base64URLDecodePaddingPolicy::Reject;
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break;
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default:
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aRv.Throw(NS_ERROR_INVALID_ARG);
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return;
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}
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FallibleTArray<uint8_t> data;
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nsresult rv = mozilla::Base64URLDecode(aString, paddingPolicy, data);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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aRv.Throw(rv);
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return;
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}
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JS::Rooted<JSObject*> buffer(aGlobal.Context(),
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ArrayBuffer::Create(aGlobal.Context(),
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data.Length(),
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data.Elements()));
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if (NS_WARN_IF(!buffer)) {
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aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
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return;
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}
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aRetval.set(buffer);
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}
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/* static */ void
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ChromeUtils::WaiveXrays(GlobalObject& aGlobal,
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JS::HandleValue aVal,
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JS::MutableHandleValue aRetval,
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ErrorResult& aRv)
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{
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JS::RootedValue value(aGlobal.Context(), aVal);
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if (!xpc::WrapperFactory::WaiveXrayAndWrap(aGlobal.Context(), &value)) {
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aRv.NoteJSContextException(aGlobal.Context());
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} else {
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aRetval.set(value);
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}
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}
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/* static */ void
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ChromeUtils::UnwaiveXrays(GlobalObject& aGlobal,
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JS::HandleValue aVal,
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JS::MutableHandleValue aRetval,
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ErrorResult& aRv)
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{
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if (!aVal.isObject()) {
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aRetval.set(aVal);
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return;
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}
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JS::RootedObject obj(aGlobal.Context(), js::UncheckedUnwrap(&aVal.toObject()));
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if (!JS_WrapObject(aGlobal.Context(), &obj)) {
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aRv.NoteJSContextException(aGlobal.Context());
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} else {
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aRetval.setObject(*obj);
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}
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}
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/* static */ void
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ChromeUtils::GetClassName(GlobalObject& aGlobal,
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JS::HandleObject aObj,
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bool aUnwrap,
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nsAString& aRetval)
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{
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JS::RootedObject obj(aGlobal.Context(), aObj);
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if (aUnwrap) {
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obj = js::UncheckedUnwrap(obj, /* stopAtWindowProxy = */ false);
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}
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aRetval = NS_ConvertUTF8toUTF16(nsDependentCString(js::GetObjectClass(obj)->name));
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}
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/* static */ void
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ChromeUtils::ShallowClone(GlobalObject& aGlobal,
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JS::HandleObject aObj,
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JS::HandleObject aTarget,
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JS::MutableHandleObject aRetval,
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ErrorResult& aRv)
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{
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JSContext* cx = aGlobal.Context();
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auto cleanup = MakeScopeExit([&] () {
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aRv.NoteJSContextException(cx);
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});
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JS::Rooted<JS::IdVector> ids(cx, JS::IdVector(cx));
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JS::AutoValueVector values(cx);
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{
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JS::RootedObject obj(cx, js::CheckedUnwrap(aObj));
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if (!obj) {
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js::ReportAccessDenied(cx);
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return;
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}
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if (js::IsScriptedProxy(obj)) {
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JS_ReportErrorASCII(cx, "Shallow cloning a proxy object is not allowed");
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return;
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}
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JSAutoRealm ar(cx, obj);
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if (!JS_Enumerate(cx, obj, &ids) ||
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!values.reserve(ids.length())) {
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return;
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}
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JS::Rooted<JS::PropertyDescriptor> desc(cx);
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JS::RootedId id(cx);
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for (jsid idVal : ids) {
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id = idVal;
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if (!JS_GetOwnPropertyDescriptorById(cx, obj, id, &desc)) {
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continue;
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}
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if (desc.setter() || desc.getter()) {
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continue;
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}
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values.infallibleAppend(desc.value());
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}
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}
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JS::RootedObject obj(cx);
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{
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Maybe<JSAutoRealm> ar;
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if (aTarget) {
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JS::RootedObject target(cx, js::CheckedUnwrap(aTarget));
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if (!target) {
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js::ReportAccessDenied(cx);
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return;
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}
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ar.emplace(cx, target);
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}
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obj = JS_NewPlainObject(cx);
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if (!obj) {
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return;
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}
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JS::RootedValue value(cx);
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JS::RootedId id(cx);
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for (uint32_t i = 0; i < ids.length(); i++) {
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id = ids[i];
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value = values[i];
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JS_MarkCrossZoneId(cx, id);
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if (!JS_WrapValue(cx, &value) ||
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!JS_SetPropertyById(cx, obj, id, value)) {
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return;
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}
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}
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}
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if (aTarget && !JS_WrapObject(cx, &obj)) {
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return;
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}
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cleanup.release();
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aRetval.set(obj);
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}
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namespace {
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class IdleDispatchRunnable final : public IdleRunnable
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, public nsITimerCallback
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{
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public:
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NS_DECL_ISUPPORTS_INHERITED
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IdleDispatchRunnable(nsIGlobalObject* aParent,
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IdleRequestCallback& aCallback)
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: IdleRunnable("ChromeUtils::IdleDispatch")
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, mCallback(&aCallback)
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, mParent(aParent)
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{}
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NS_IMETHOD Run() override
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{
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if (mCallback) {
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CancelTimer();
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auto deadline = mDeadline - TimeStamp::ProcessCreation();
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ErrorResult rv;
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RefPtr<IdleDeadline> idleDeadline =
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new IdleDeadline(mParent, mTimedOut, deadline.ToMilliseconds());
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mCallback->Call(*idleDeadline, rv, "ChromeUtils::IdleDispatch handler");
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mCallback = nullptr;
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mParent = nullptr;
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rv.SuppressException();
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return rv.StealNSResult();
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}
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return NS_OK;
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}
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void SetDeadline(TimeStamp aDeadline) override
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{
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mDeadline = aDeadline;
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}
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NS_IMETHOD Notify(nsITimer* aTimer) override
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{
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mTimedOut = true;
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SetDeadline(TimeStamp::Now());
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return Run();
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}
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void SetTimer(uint32_t aDelay, nsIEventTarget* aTarget) override
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{
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MOZ_ASSERT(aTarget);
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MOZ_ASSERT(!mTimer);
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NS_NewTimerWithCallback(getter_AddRefs(mTimer),
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this, aDelay, nsITimer::TYPE_ONE_SHOT,
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aTarget);
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}
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protected:
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virtual ~IdleDispatchRunnable()
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{
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CancelTimer();
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}
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private:
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void CancelTimer()
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{
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if (mTimer) {
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mTimer->Cancel();
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mTimer = nullptr;
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}
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}
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RefPtr<IdleRequestCallback> mCallback;
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nsCOMPtr<nsIGlobalObject> mParent;
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nsCOMPtr<nsITimer> mTimer;
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TimeStamp mDeadline{};
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bool mTimedOut = false;
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};
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NS_IMPL_ISUPPORTS_INHERITED(IdleDispatchRunnable, IdleRunnable, nsITimerCallback)
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} // anonymous namespace
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/* static */ void
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ChromeUtils::IdleDispatch(const GlobalObject& aGlobal,
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IdleRequestCallback& aCallback,
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const IdleRequestOptions& aOptions,
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ErrorResult& aRv)
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{
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nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(aGlobal.GetAsSupports());
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MOZ_ASSERT(global);
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auto runnable = MakeRefPtr<IdleDispatchRunnable>(global, aCallback);
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if (aOptions.mTimeout.WasPassed()) {
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aRv = NS_IdleDispatchToCurrentThread(runnable.forget(), aOptions.mTimeout.Value());
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} else {
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aRv = NS_IdleDispatchToCurrentThread(runnable.forget());
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}
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}
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/* static */ void
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ChromeUtils::Import(const GlobalObject& aGlobal,
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const nsAString& aResourceURI,
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const Optional<JS::Handle<JSObject*>>& aTargetObj,
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JS::MutableHandle<JSObject*> aRetval,
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ErrorResult& aRv)
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{
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RefPtr<mozJSComponentLoader> moduleloader = mozJSComponentLoader::Get();
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MOZ_ASSERT(moduleloader);
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NS_ConvertUTF16toUTF8 registryLocation(aResourceURI);
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AUTO_PROFILER_LABEL_DYNAMIC_NSCSTRING(
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"ChromeUtils::Import", OTHER, registryLocation);
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JSContext* cx = aGlobal.Context();
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JS::Rooted<JS::Value> targetObj(cx);
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uint8_t optionalArgc;
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if (aTargetObj.WasPassed()) {
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targetObj.setObjectOrNull(aTargetObj.Value());
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optionalArgc = 1;
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} else {
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targetObj.setUndefined();
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optionalArgc = 0;
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}
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JS::Rooted<JS::Value> retval(cx);
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nsresult rv = moduleloader->ImportInto(registryLocation, targetObj, cx,
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optionalArgc, &retval);
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if (NS_FAILED(rv)) {
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aRv.Throw(rv);
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return;
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}
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// Import() on the component loader can return NS_OK while leaving an
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// exception on the JSContext. Check for that case.
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if (JS_IsExceptionPending(cx)) {
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aRv.NoteJSContextException(cx);
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return;
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}
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// Now we better have an object.
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MOZ_ASSERT(retval.isObject());
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aRetval.set(&retval.toObject());
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}
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namespace module_getter {
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static const size_t SLOT_ID = 0;
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static const size_t SLOT_URI = 1;
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static bool
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ExtractArgs(JSContext* aCx, JS::CallArgs& aArgs,
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JS::MutableHandle<JSObject*> aCallee,
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JS::MutableHandle<JSObject*> aThisObj,
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JS::MutableHandle<jsid> aId)
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{
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aCallee.set(&aArgs.callee());
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JS::Handle<JS::Value> thisv = aArgs.thisv();
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if (!thisv.isObject()) {
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JS_ReportErrorASCII(aCx, "Invalid target object");
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return false;
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}
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aThisObj.set(&thisv.toObject());
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JS::Rooted<JS::Value> id(aCx, js::GetFunctionNativeReserved(aCallee, SLOT_ID));
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MOZ_ALWAYS_TRUE(JS_ValueToId(aCx, id, aId));
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return true;
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}
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static bool
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ModuleGetter(JSContext* aCx, unsigned aArgc, JS::Value* aVp)
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{
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JS::CallArgs args = JS::CallArgsFromVp(aArgc, aVp);
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JS::Rooted<JSObject*> callee(aCx);
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JS::Rooted<JSObject*> thisObj(aCx);
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JS::Rooted<jsid> id(aCx);
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if (!ExtractArgs(aCx, args, &callee, &thisObj, &id)) {
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return false;
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}
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JS::Rooted<JSString*> moduleURI(
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aCx, js::GetFunctionNativeReserved(callee, SLOT_URI).toString());
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JSAutoByteString bytes;
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if (!bytes.encodeUtf8(aCx, moduleURI)) {
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return false;
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}
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nsDependentCString uri(bytes.ptr());
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RefPtr<mozJSComponentLoader> moduleloader = mozJSComponentLoader::Get();
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MOZ_ASSERT(moduleloader);
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JS::Rooted<JSObject*> moduleGlobal(aCx);
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JS::Rooted<JSObject*> moduleExports(aCx);
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nsresult rv = moduleloader->Import(aCx, uri, &moduleGlobal, &moduleExports);
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if (NS_FAILED(rv)) {
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Throw(aCx, rv);
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return false;
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}
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JS::RootedValue value(aCx);
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{
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JSAutoRealm ar(aCx, moduleExports);
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if (!JS_GetPropertyById(aCx, moduleExports, id, &value)) {
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return false;
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}
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}
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if (!JS_WrapValue(aCx, &value) ||
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!JS_DefinePropertyById(aCx, thisObj, id, value,
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JSPROP_ENUMERATE)) {
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return false;
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}
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args.rval().set(value);
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return true;
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}
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static bool
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ModuleSetter(JSContext* aCx, unsigned aArgc, JS::Value* aVp)
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{
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JS::CallArgs args = JS::CallArgsFromVp(aArgc, aVp);
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JS::Rooted<JSObject*> callee(aCx);
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JS::Rooted<JSObject*> thisObj(aCx);
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JS::Rooted<jsid> id(aCx);
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if (!ExtractArgs(aCx, args, &callee, &thisObj, &id)) {
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return false;
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}
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return JS_DefinePropertyById(aCx, thisObj, id, args.get(0),
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JSPROP_ENUMERATE);
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}
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|
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static bool
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DefineGetter(JSContext* aCx,
|
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JS::Handle<JSObject*> aTarget,
|
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const nsAString& aId,
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const nsAString& aResourceURI)
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|
{
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JS::RootedValue uri(aCx);
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JS::RootedValue idValue(aCx);
|
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JS::Rooted<jsid> id(aCx);
|
|
if (!xpc::NonVoidStringToJsval(aCx, aResourceURI, &uri) ||
|
|
!xpc::NonVoidStringToJsval(aCx, aId, &idValue) ||
|
|
!JS_ValueToId(aCx, idValue, &id)) {
|
|
return false;
|
|
}
|
|
idValue = js::IdToValue(id);
|
|
|
|
|
|
JS::Rooted<JSObject*> getter(aCx, JS_GetFunctionObject(
|
|
js::NewFunctionByIdWithReserved(aCx, ModuleGetter, 0, 0, id)));
|
|
|
|
JS::Rooted<JSObject*> setter(aCx, JS_GetFunctionObject(
|
|
js::NewFunctionByIdWithReserved(aCx, ModuleSetter, 0, 0, id)));
|
|
|
|
if (!getter || !setter) {
|
|
JS_ReportOutOfMemory(aCx);
|
|
return false;
|
|
}
|
|
|
|
js::SetFunctionNativeReserved(getter, SLOT_ID, idValue);
|
|
js::SetFunctionNativeReserved(setter, SLOT_ID, idValue);
|
|
|
|
js::SetFunctionNativeReserved(getter, SLOT_URI, uri);
|
|
|
|
return JS_DefinePropertyById(aCx, aTarget, id, getter, setter,
|
|
JSPROP_GETTER | JSPROP_SETTER | JSPROP_ENUMERATE);
|
|
}
|
|
} // namespace module_getter
|
|
|
|
/* static */ void
|
|
ChromeUtils::DefineModuleGetter(const GlobalObject& global,
|
|
JS::Handle<JSObject*> target,
|
|
const nsAString& id,
|
|
const nsAString& resourceURI,
|
|
ErrorResult& aRv)
|
|
{
|
|
if (!module_getter::DefineGetter(global.Context(), target, id, resourceURI)) {
|
|
aRv.NoteJSContextException(global.Context());
|
|
}
|
|
}
|
|
|
|
/* static */ void
|
|
ChromeUtils::OriginAttributesToSuffix(dom::GlobalObject& aGlobal,
|
|
const dom::OriginAttributesDictionary& aAttrs,
|
|
nsCString& aSuffix)
|
|
|
|
{
|
|
OriginAttributes attrs(aAttrs);
|
|
attrs.CreateSuffix(aSuffix);
|
|
}
|
|
|
|
/* static */ bool
|
|
ChromeUtils::OriginAttributesMatchPattern(dom::GlobalObject& aGlobal,
|
|
const dom::OriginAttributesDictionary& aAttrs,
|
|
const dom::OriginAttributesPatternDictionary& aPattern)
|
|
{
|
|
OriginAttributes attrs(aAttrs);
|
|
OriginAttributesPattern pattern(aPattern);
|
|
return pattern.Matches(attrs);
|
|
}
|
|
|
|
/* static */ void
|
|
ChromeUtils::CreateOriginAttributesFromOrigin(dom::GlobalObject& aGlobal,
|
|
const nsAString& aOrigin,
|
|
dom::OriginAttributesDictionary& aAttrs,
|
|
ErrorResult& aRv)
|
|
{
|
|
OriginAttributes attrs;
|
|
nsAutoCString suffix;
|
|
if (!attrs.PopulateFromOrigin(NS_ConvertUTF16toUTF8(aOrigin), suffix)) {
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
return;
|
|
}
|
|
aAttrs = attrs;
|
|
}
|
|
|
|
/* static */ void
|
|
ChromeUtils::FillNonDefaultOriginAttributes(dom::GlobalObject& aGlobal,
|
|
const dom::OriginAttributesDictionary& aAttrs,
|
|
dom::OriginAttributesDictionary& aNewAttrs)
|
|
{
|
|
aNewAttrs = aAttrs;
|
|
}
|
|
|
|
|
|
/* static */ bool
|
|
ChromeUtils::IsOriginAttributesEqual(dom::GlobalObject& aGlobal,
|
|
const dom::OriginAttributesDictionary& aA,
|
|
const dom::OriginAttributesDictionary& aB)
|
|
{
|
|
return IsOriginAttributesEqual(aA, aB);
|
|
}
|
|
|
|
/* static */ bool
|
|
ChromeUtils::IsOriginAttributesEqual(const dom::OriginAttributesDictionary& aA,
|
|
const dom::OriginAttributesDictionary& aB)
|
|
{
|
|
return aA.mAppId == aB.mAppId &&
|
|
aA.mInIsolatedMozBrowser == aB.mInIsolatedMozBrowser &&
|
|
aA.mUserContextId == aB.mUserContextId &&
|
|
aA.mPrivateBrowsingId == aB.mPrivateBrowsingId;
|
|
}
|
|
|
|
#ifdef NIGHTLY_BUILD
|
|
/* static */ void
|
|
ChromeUtils::GetRecentJSDevError(GlobalObject& aGlobal,
|
|
JS::MutableHandleValue aRetval,
|
|
ErrorResult& aRv)
|
|
{
|
|
aRetval.setUndefined();
|
|
auto runtime = CycleCollectedJSRuntime::Get();
|
|
MOZ_ASSERT(runtime);
|
|
|
|
auto cx = aGlobal.Context();
|
|
if (!runtime->GetRecentDevError(cx, aRetval)) {
|
|
aRv.NoteJSContextException(cx);
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* static */ void
|
|
ChromeUtils::ClearRecentJSDevError(GlobalObject&)
|
|
{
|
|
auto runtime = CycleCollectedJSRuntime::Get();
|
|
MOZ_ASSERT(runtime);
|
|
|
|
runtime->ClearRecentDevError();
|
|
}
|
|
#endif // NIGHTLY_BUILD
|
|
|
|
/* static */
|
|
already_AddRefed<Promise>
|
|
ChromeUtils::RequestPerformanceMetrics(GlobalObject& aGlobal,
|
|
ErrorResult& aRv)
|
|
{
|
|
MOZ_ASSERT(XRE_IsParentProcess());
|
|
|
|
// Creating a promise
|
|
nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(aGlobal.GetAsSupports());
|
|
MOZ_ASSERT(global);
|
|
RefPtr<Promise> domPromise = Promise::Create(global, aRv);
|
|
if (NS_WARN_IF(aRv.Failed())) {
|
|
return nullptr;
|
|
}
|
|
MOZ_ASSERT(domPromise);
|
|
|
|
// requesting metrics, that will be returned into the promise
|
|
PerformanceMetricsCollector::RequestMetrics(domPromise);
|
|
|
|
// sending back the promise instance
|
|
return domPromise.forget();
|
|
}
|
|
|
|
constexpr auto kSkipSelfHosted = JS::SavedFrameSelfHosted::Exclude;
|
|
|
|
/* static */ void
|
|
ChromeUtils::GetCallerLocation(const GlobalObject& aGlobal, nsIPrincipal* aPrincipal,
|
|
JS::MutableHandle<JSObject*> aRetval)
|
|
{
|
|
JSContext* cx = aGlobal.Context();
|
|
|
|
auto* principals = nsJSPrincipals::get(aPrincipal);
|
|
|
|
JS::StackCapture captureMode(JS::FirstSubsumedFrame(cx, principals));
|
|
|
|
JS::RootedObject frame(cx);
|
|
if (!JS::CaptureCurrentStack(cx, &frame, std::move(captureMode))) {
|
|
JS_ClearPendingException(cx);
|
|
aRetval.set(nullptr);
|
|
return;
|
|
}
|
|
|
|
// FirstSubsumedFrame gets us a stack which stops at the first principal which
|
|
// is subsumed by the given principal. That means that we may have a lot of
|
|
// privileged frames that we don't care about at the top of the stack, though.
|
|
// We need to filter those out to get the frame we actually want.
|
|
aRetval.set(js::GetFirstSubsumedSavedFrame(cx, principals, frame, kSkipSelfHosted));
|
|
}
|
|
|
|
/* static */ void
|
|
ChromeUtils::CreateError(const GlobalObject& aGlobal, const nsAString& aMessage,
|
|
JS::Handle<JSObject*> aStack,
|
|
JS::MutableHandle<JSObject*> aRetVal, ErrorResult& aRv)
|
|
{
|
|
if (aStack && !JS::IsSavedFrame(aStack)) {
|
|
aRv.Throw(NS_ERROR_INVALID_ARG);
|
|
return;
|
|
}
|
|
|
|
JSContext* cx = aGlobal.Context();
|
|
|
|
auto cleanup = MakeScopeExit([&]() {
|
|
aRv.NoteJSContextException(cx);
|
|
});
|
|
|
|
JS::RootedObject retVal(cx);
|
|
{
|
|
JS::RootedString fileName(cx, JS_GetEmptyString(cx));
|
|
uint32_t line = 0;
|
|
uint32_t column = 0;
|
|
|
|
Maybe<JSAutoRealm> ar;
|
|
JS::RootedObject stack(cx);
|
|
if (aStack) {
|
|
stack = UncheckedUnwrap(aStack);
|
|
ar.emplace(cx, stack);
|
|
|
|
if (JS::GetSavedFrameLine(cx, stack, &line) != JS::SavedFrameResult::Ok ||
|
|
JS::GetSavedFrameColumn(cx, stack, &column) != JS::SavedFrameResult::Ok ||
|
|
JS::GetSavedFrameSource(cx, stack, &fileName) != JS::SavedFrameResult::Ok) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
JS::RootedString message(cx);
|
|
{
|
|
JS::RootedValue msgVal(cx);
|
|
if (!xpc::NonVoidStringToJsval(cx, aMessage, &msgVal)) {
|
|
return;
|
|
}
|
|
message = msgVal.toString();
|
|
}
|
|
|
|
JS::Rooted<JS::Value> err(cx);
|
|
if (!JS::CreateError(cx, JSEXN_ERR, stack,
|
|
fileName, line, column,
|
|
nullptr, message, &err)) {
|
|
return;
|
|
}
|
|
|
|
MOZ_ASSERT(err.isObject());
|
|
retVal = &err.toObject();
|
|
}
|
|
|
|
if (aStack && !JS_WrapObject(cx, &retVal)) {
|
|
return;
|
|
}
|
|
|
|
cleanup.release();
|
|
aRetVal.set(retVal);
|
|
}
|
|
|
|
/* static */ already_AddRefed<Promise>
|
|
ChromeUtils::RequestIOActivity(GlobalObject& aGlobal, ErrorResult& aRv)
|
|
{
|
|
MOZ_ASSERT(XRE_IsParentProcess());
|
|
MOZ_ASSERT(Preferences::GetBool(IO_ACTIVITY_ENABLED_PREF, false));
|
|
nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(aGlobal.GetAsSupports());
|
|
MOZ_ASSERT(global);
|
|
RefPtr<Promise> domPromise = Promise::Create(global, aRv);
|
|
if (NS_WARN_IF(aRv.Failed())) {
|
|
return nullptr;
|
|
}
|
|
MOZ_ASSERT(domPromise);
|
|
mozilla::net::IOActivityMonitor::RequestActivities(domPromise);
|
|
return domPromise.forget();
|
|
}
|
|
|
|
} // namespace dom
|
|
} // namespace mozilla
|