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fune/dom/base/ChromeUtils.cpp
Iulian Moraru 413b88689f Backed out 9 changesets (bug 1846848) for causing multiple build bustages. CLOSED TREE 
Backed out changeset e5333509733c (bug 1846848)
Backed out changeset bf4ac7f56486 (bug 1846848)
Backed out changeset 5d794cd95fc7 (bug 1846848)
Backed out changeset 203f9c356a36 (bug 1846848)
Backed out changeset a755043387c2 (bug 1846848)
Backed out changeset 2fdeb001c68a (bug 1846848)
Backed out changeset 9a13867df758 (bug 1846848)
Backed out changeset 773368f5552d (bug 1846848)
Backed out changeset 43360fe1a5fa (bug 1846848)
2023-12-05 05:41:47 +02:00

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/* -*- 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 "ChromeUtils.h"
#include "JSOracleParent.h"
#include "js/CallAndConstruct.h" // JS::Call
#include "js/ColumnNumber.h" // JS::TaggedColumnNumberOneOrigin, JS::ColumnNumberOneOrigin
#include "js/CharacterEncoding.h"
#include "js/Object.h" // JS::GetClass
#include "js/PropertyAndElement.h" // JS_DefineProperty, JS_DefinePropertyById, JS_Enumerate, JS_GetProperty, JS_GetPropertyById, JS_SetProperty, JS_SetPropertyById, JS::IdVector
#include "js/PropertyDescriptor.h" // JS::PropertyDescriptor, JS_GetOwnPropertyDescriptorById
#include "js/SavedFrameAPI.h"
#include "js/Value.h" // JS::Value, JS::StringValue
#include "jsfriendapi.h"
#include "WrapperFactory.h"
#include "mozilla/Base64.h"
#include "mozilla/CycleCollectedJSRuntime.h"
#include "mozilla/ErrorNames.h"
#include "mozilla/EventStateManager.h"
#include "mozilla/FormAutofillNative.h"
#include "mozilla/IntentionalCrash.h"
#include "mozilla/PerfStats.h"
#include "mozilla/Preferences.h"
#include "mozilla/ProcInfo.h"
#include "mozilla/ResultExtensions.h"
#include "mozilla/ScopeExit.h"
#include "mozilla/ScrollingMetrics.h"
#include "mozilla/SharedStyleSheetCache.h"
#include "mozilla/TimeStamp.h"
#include "mozilla/dom/ContentParent.h"
#include "mozilla/dom/IdleDeadline.h"
#include "mozilla/dom/InProcessParent.h"
#include "mozilla/dom/JSActorService.h"
#include "mozilla/dom/MediaSessionBinding.h"
#include "mozilla/dom/PBrowserParent.h"
#include "mozilla/dom/Performance.h"
#include "mozilla/dom/PopupBlocker.h"
#include "mozilla/dom/Promise.h"
#include "mozilla/dom/Record.h"
#include "mozilla/dom/ReportingHeader.h"
#include "mozilla/dom/UnionTypes.h"
#include "mozilla/dom/WindowBinding.h" // For IdleRequestCallback/Options
#include "mozilla/dom/WindowGlobalParent.h"
#include "mozilla/dom/WorkerScope.h"
#include "mozilla/ipc/GeckoChildProcessHost.h"
#include "mozilla/ipc/UtilityProcessSandboxing.h"
#include "mozilla/ipc/UtilityProcessManager.h"
#include "mozilla/ipc/UtilityProcessHost.h"
#include "mozilla/net/UrlClassifierFeatureFactory.h"
#include "mozilla/WheelHandlingHelper.h"
#include "IOActivityMonitor.h"
#include "nsNativeTheme.h"
#include "nsThreadUtils.h"
#include "mozJSModuleLoader.h"
#include "mozilla/ProfilerLabels.h"
#include "mozilla/ProfilerMarkers.h"
#include "nsIException.h"
#include "VsyncSource.h"
#ifdef XP_UNIX
# include <errno.h>
# include <unistd.h>
# include <fcntl.h>
# include <poll.h>
# include <sys/wait.h>
# ifdef XP_LINUX
# include <sys/prctl.h>
# endif
#endif
namespace mozilla::dom {
/* static */
void ChromeUtils::NondeterministicGetWeakMapKeys(
GlobalObject& aGlobal, JS::Handle<JS::Value> aMap,
JS::MutableHandle<JS::Value> aRetval, ErrorResult& aRv) {
if (!aMap.isObject()) {
aRetval.setUndefined();
} else {
JSContext* cx = aGlobal.Context();
JS::Rooted<JSObject*> objRet(cx);
JS::Rooted<JSObject*> mapObj(cx, &aMap.toObject());
if (!JS_NondeterministicGetWeakMapKeys(cx, mapObj, &objRet)) {
aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
} else {
aRetval.set(objRet ? JS::ObjectValue(*objRet) : JS::UndefinedValue());
}
}
}
/* static */
void ChromeUtils::NondeterministicGetWeakSetKeys(
GlobalObject& aGlobal, JS::Handle<JS::Value> aSet,
JS::MutableHandle<JS::Value> aRetval, ErrorResult& aRv) {
if (!aSet.isObject()) {
aRetval.setUndefined();
} else {
JSContext* cx = aGlobal.Context();
JS::Rooted<JSObject*> objRet(cx);
JS::Rooted<JSObject*> setObj(cx, &aSet.toObject());
if (!JS_NondeterministicGetWeakSetKeys(cx, setObj, &objRet)) {
aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
} else {
aRetval.set(objRet ? JS::ObjectValue(*objRet) : JS::UndefinedValue());
}
}
}
/* static */
void ChromeUtils::Base64URLEncode(GlobalObject& aGlobal,
const ArrayBufferViewOrArrayBuffer& aSource,
const Base64URLEncodeOptions& aOptions,
nsACString& aResult, ErrorResult& aRv) {
auto paddingPolicy = aOptions.mPad ? Base64URLEncodePaddingPolicy::Include
: Base64URLEncodePaddingPolicy::Omit;
ProcessTypedArrays(
aSource, [&](const Span<uint8_t>& aData, JS::AutoCheckCannotGC&&) {
nsresult rv = mozilla::Base64URLEncode(aData.Length(), aData.Elements(),
paddingPolicy, aResult);
if (NS_WARN_IF(NS_FAILED(rv))) {
aResult.Truncate();
aRv.Throw(rv);
}
});
}
/* static */
void ChromeUtils::Base64URLDecode(GlobalObject& aGlobal,
const nsACString& aString,
const Base64URLDecodeOptions& aOptions,
JS::MutableHandle<JSObject*> aRetval,
ErrorResult& aRv) {
Base64URLDecodePaddingPolicy paddingPolicy;
switch (aOptions.mPadding) {
case Base64URLDecodePadding::Require:
paddingPolicy = Base64URLDecodePaddingPolicy::Require;
break;
case Base64URLDecodePadding::Ignore:
paddingPolicy = Base64URLDecodePaddingPolicy::Ignore;
break;
case Base64URLDecodePadding::Reject:
paddingPolicy = Base64URLDecodePaddingPolicy::Reject;
break;
default:
aRv.Throw(NS_ERROR_INVALID_ARG);
return;
}
FallibleTArray<uint8_t> data;
nsresult rv = mozilla::Base64URLDecode(aString, paddingPolicy, data);
if (NS_WARN_IF(NS_FAILED(rv))) {
aRv.Throw(rv);
return;
}
JS::Rooted<JSObject*> buffer(
aGlobal.Context(), ArrayBuffer::Create(aGlobal.Context(), data, aRv));
if (aRv.Failed()) {
return;
}
aRetval.set(buffer);
}
/* static */
void ChromeUtils::ReleaseAssert(GlobalObject& aGlobal, bool aCondition,
const nsAString& aMessage) {
// If the condition didn't fail, which is the likely case, immediately return.
if (MOZ_LIKELY(aCondition)) {
return;
}
// Extract the current stack from the JS runtime to embed in the crash reason.
nsAutoString filename;
uint32_t lineNo = 0;
if (nsCOMPtr<nsIStackFrame> location = GetCurrentJSStack(1)) {
location->GetFilename(aGlobal.Context(), filename);
lineNo = location->GetLineNumber(aGlobal.Context());
} else {
filename.Assign(u"<unknown>"_ns);
}
// Convert to utf-8 for adding as the MozCrashReason.
NS_ConvertUTF16toUTF8 filenameUtf8(filename);
NS_ConvertUTF16toUTF8 messageUtf8(aMessage);
// Actually crash.
MOZ_CRASH_UNSAFE_PRINTF("Failed ChromeUtils.releaseAssert(\"%s\") @ %s:%u",
messageUtf8.get(), filenameUtf8.get(), lineNo);
}
/* static */
void ChromeUtils::AddProfilerMarker(
GlobalObject& aGlobal, const nsACString& aName,
const ProfilerMarkerOptionsOrDouble& aOptions,
const Optional<nsACString>& aText) {
if (!profiler_thread_is_being_profiled_for_markers()) {
return;
}
MarkerOptions options;
MarkerCategory category = ::geckoprofiler::category::JS;
DOMHighResTimeStamp startTime = 0;
uint64_t innerWindowId = 0;
if (aOptions.IsDouble()) {
startTime = aOptions.GetAsDouble();
} else {
const ProfilerMarkerOptions& opt = aOptions.GetAsProfilerMarkerOptions();
startTime = opt.mStartTime;
innerWindowId = opt.mInnerWindowId;
if (opt.mCaptureStack) {
// If we will be capturing a stack, change the category of the
// ChromeUtils.addProfilerMarker label automatically added by the webidl
// binding from DOM to PROFILER so that this function doesn't appear in
// the marker stack.
JSContext* cx = aGlobal.Context();
ProfilingStack* stack = js::GetContextProfilingStackIfEnabled(cx);
if (MOZ_LIKELY(stack)) {
uint32_t sp = stack->stackPointer;
if (MOZ_LIKELY(sp > 0)) {
js::ProfilingStackFrame& frame = stack->frames[sp - 1];
if (frame.isLabelFrame() && "ChromeUtils"_ns.Equals(frame.label()) &&
"addProfilerMarker"_ns.Equals(frame.dynamicString())) {
frame.setLabelCategory(JS::ProfilingCategoryPair::PROFILER);
}
}
}
options.Set(MarkerStack::Capture());
}
#define BEGIN_CATEGORY(name, labelAsString, color) \
if (opt.mCategory.Equals(labelAsString)) { \
category = ::geckoprofiler::category::name; \
} else
#define SUBCATEGORY(supercategory, name, labelAsString)
#define END_CATEGORY
MOZ_PROFILING_CATEGORY_LIST(BEGIN_CATEGORY, SUBCATEGORY, END_CATEGORY)
#undef BEGIN_CATEGORY
#undef SUBCATEGORY
#undef END_CATEGORY
{
category = ::geckoprofiler::category::OTHER;
}
}
if (startTime) {
RefPtr<Performance> performance;
if (NS_IsMainThread()) {
nsCOMPtr<nsPIDOMWindowInner> ownerWindow =
do_QueryInterface(aGlobal.GetAsSupports());
if (ownerWindow) {
performance = ownerWindow->GetPerformance();
}
} else {
JSContext* cx = aGlobal.Context();
WorkerPrivate* workerPrivate = GetWorkerPrivateFromContext(cx);
if (workerPrivate) {
performance = workerPrivate->GlobalScope()->GetPerformance();
}
}
if (performance) {
options.Set(MarkerTiming::IntervalUntilNowFrom(
performance->CreationTimeStamp() +
TimeDuration::FromMilliseconds(startTime)));
} else {
options.Set(MarkerTiming::IntervalUntilNowFrom(
TimeStamp::ProcessCreation() +
TimeDuration::FromMilliseconds(startTime)));
}
}
if (innerWindowId) {
options.Set(MarkerInnerWindowId(innerWindowId));
} else {
options.Set(MarkerInnerWindowIdFromJSContext(aGlobal.Context()));
}
{
AUTO_PROFILER_STATS(ChromeUtils_AddProfilerMarker);
if (aText.WasPassed()) {
profiler_add_marker(aName, category, std::move(options),
::geckoprofiler::markers::TextMarker{},
aText.Value());
} else {
profiler_add_marker(aName, category, std::move(options));
}
}
}
/* static */
void ChromeUtils::GetXPCOMErrorName(GlobalObject& aGlobal, uint32_t aErrorCode,
nsACString& aRetval) {
GetErrorName((nsresult)aErrorCode, aRetval);
}
/* static */
void ChromeUtils::WaiveXrays(GlobalObject& aGlobal, JS::Handle<JS::Value> aVal,
JS::MutableHandle<JS::Value> aRetval,
ErrorResult& aRv) {
JS::Rooted<JS::Value> value(aGlobal.Context(), aVal);
if (!xpc::WrapperFactory::WaiveXrayAndWrap(aGlobal.Context(), &value)) {
aRv.NoteJSContextException(aGlobal.Context());
} else {
aRetval.set(value);
}
}
/* static */
void ChromeUtils::UnwaiveXrays(GlobalObject& aGlobal,
JS::Handle<JS::Value> aVal,
JS::MutableHandle<JS::Value> aRetval,
ErrorResult& aRv) {
if (!aVal.isObject()) {
aRetval.set(aVal);
return;
}
JS::Rooted<JSObject*> obj(aGlobal.Context(),
js::UncheckedUnwrap(&aVal.toObject()));
if (!JS_WrapObject(aGlobal.Context(), &obj)) {
aRv.NoteJSContextException(aGlobal.Context());
} else {
aRetval.setObject(*obj);
}
}
/* static */
void ChromeUtils::GetClassName(GlobalObject& aGlobal,
JS::Handle<JSObject*> aObj, bool aUnwrap,
nsAString& aRetval) {
JS::Rooted<JSObject*> obj(aGlobal.Context(), aObj);
if (aUnwrap) {
obj = js::UncheckedUnwrap(obj, /* stopAtWindowProxy = */ false);
}
aRetval = NS_ConvertUTF8toUTF16(nsDependentCString(JS::GetClass(obj)->name));
}
/* static */
bool ChromeUtils::IsDOMObject(GlobalObject& aGlobal, JS::Handle<JSObject*> aObj,
bool aUnwrap) {
JS::Rooted<JSObject*> obj(aGlobal.Context(), aObj);
if (aUnwrap) {
obj = js::UncheckedUnwrap(obj, /* stopAtWindowProxy = */ false);
}
return mozilla::dom::IsDOMObject(obj);
}
/* static */
void ChromeUtils::ShallowClone(GlobalObject& aGlobal,
JS::Handle<JSObject*> aObj,
JS::Handle<JSObject*> aTarget,
JS::MutableHandle<JSObject*> aRetval,
ErrorResult& aRv) {
JSContext* cx = aGlobal.Context();
auto cleanup = MakeScopeExit([&]() { aRv.NoteJSContextException(cx); });
JS::Rooted<JS::IdVector> ids(cx, JS::IdVector(cx));
JS::RootedVector<JS::Value> values(cx);
JS::RootedVector<jsid> valuesIds(cx);
{
// cx represents our current Realm, so it makes sense to use it for the
// CheckedUnwrapDynamic call. We do want CheckedUnwrapDynamic, in case
// someone is shallow-cloning a Window.
JS::Rooted<JSObject*> obj(cx, js::CheckedUnwrapDynamic(aObj, cx));
if (!obj) {
js::ReportAccessDenied(cx);
return;
}
if (js::IsScriptedProxy(obj)) {
JS_ReportErrorASCII(cx, "Shallow cloning a proxy object is not allowed");
return;
}
JSAutoRealm ar(cx, obj);
if (!JS_Enumerate(cx, obj, &ids) || !values.reserve(ids.length()) ||
!valuesIds.reserve(ids.length())) {
return;
}
JS::Rooted<Maybe<JS::PropertyDescriptor>> desc(cx);
JS::Rooted<JS::PropertyKey> id(cx);
for (jsid idVal : ids) {
id = idVal;
if (!JS_GetOwnPropertyDescriptorById(cx, obj, id, &desc)) {
continue;
}
if (desc.isNothing() || desc->isAccessorDescriptor()) {
continue;
}
valuesIds.infallibleAppend(id);
values.infallibleAppend(desc->value());
}
}
JS::Rooted<JSObject*> obj(cx);
{
Maybe<JSAutoRealm> ar;
if (aTarget) {
// Our target could be anything, so we want CheckedUnwrapDynamic here.
// "cx" represents the current Realm when we were called from bindings, so
// we can just use that.
JS::Rooted<JSObject*> target(cx, js::CheckedUnwrapDynamic(aTarget, cx));
if (!target) {
js::ReportAccessDenied(cx);
return;
}
ar.emplace(cx, target);
}
obj = JS_NewPlainObject(cx);
if (!obj) {
return;
}
JS::Rooted<JS::Value> value(cx);
JS::Rooted<JS::PropertyKey> id(cx);
for (uint32_t i = 0; i < valuesIds.length(); i++) {
id = valuesIds[i];
value = values[i];
JS_MarkCrossZoneId(cx, id);
if (!JS_WrapValue(cx, &value) ||
!JS_SetPropertyById(cx, obj, id, value)) {
return;
}
}
}
if (aTarget && !JS_WrapObject(cx, &obj)) {
return;
}
cleanup.release();
aRetval.set(obj);
}
namespace {
class IdleDispatchRunnable final : public IdleRunnable,
public nsITimerCallback {
public:
NS_DECL_ISUPPORTS_INHERITED
IdleDispatchRunnable(nsIGlobalObject* aParent, IdleRequestCallback& aCallback)
: IdleRunnable("ChromeUtils::IdleDispatch"),
mCallback(&aCallback),
mParent(aParent) {}
// MOZ_CAN_RUN_SCRIPT_BOUNDARY until Runnable::Run is MOZ_CAN_RUN_SCRIPT.
// See bug 1535398.
MOZ_CAN_RUN_SCRIPT_BOUNDARY NS_IMETHOD Run() override {
if (mCallback) {
CancelTimer();
auto deadline = mDeadline - TimeStamp::ProcessCreation();
ErrorResult rv;
RefPtr<IdleDeadline> idleDeadline =
new IdleDeadline(mParent, mTimedOut, deadline.ToMilliseconds());
RefPtr<IdleRequestCallback> callback(std::move(mCallback));
MOZ_ASSERT(!mCallback);
callback->Call(*idleDeadline, "ChromeUtils::IdleDispatch handler");
mParent = nullptr;
}
return NS_OK;
}
void SetDeadline(TimeStamp aDeadline) override { mDeadline = aDeadline; }
NS_IMETHOD Notify(nsITimer* aTimer) override {
mTimedOut = true;
SetDeadline(TimeStamp::Now());
return Run();
}
void SetTimer(uint32_t aDelay, nsIEventTarget* aTarget) override {
MOZ_ASSERT(aTarget);
MOZ_ASSERT(!mTimer);
NS_NewTimerWithCallback(getter_AddRefs(mTimer), this, aDelay,
nsITimer::TYPE_ONE_SHOT, aTarget);
}
protected:
virtual ~IdleDispatchRunnable() { CancelTimer(); }
private:
void CancelTimer() {
if (mTimer) {
mTimer->Cancel();
mTimer = nullptr;
}
}
RefPtr<IdleRequestCallback> mCallback;
nsCOMPtr<nsIGlobalObject> mParent;
nsCOMPtr<nsITimer> mTimer;
TimeStamp mDeadline{};
bool mTimedOut = false;
};
NS_IMPL_ISUPPORTS_INHERITED(IdleDispatchRunnable, IdleRunnable,
nsITimerCallback)
} // anonymous namespace
/* static */
void ChromeUtils::IdleDispatch(const GlobalObject& aGlobal,
IdleRequestCallback& aCallback,
const IdleRequestOptions& aOptions,
ErrorResult& aRv) {
nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(aGlobal.GetAsSupports());
MOZ_ASSERT(global);
auto runnable = MakeRefPtr<IdleDispatchRunnable>(global, aCallback);
if (aOptions.mTimeout.WasPassed()) {
aRv = NS_DispatchToCurrentThreadQueue(
runnable.forget(), aOptions.mTimeout.Value(), EventQueuePriority::Idle);
} else {
aRv = NS_DispatchToCurrentThreadQueue(runnable.forget(),
EventQueuePriority::Idle);
}
}
/* static */
void ChromeUtils::Import(const GlobalObject& aGlobal,
const nsACString& aResourceURI,
const Optional<JS::Handle<JSObject*>>& aTargetObj,
JS::MutableHandle<JSObject*> aRetval,
ErrorResult& aRv) {
RefPtr moduleloader = mozJSModuleLoader::Get();
MOZ_ASSERT(moduleloader);
AUTO_PROFILER_LABEL_DYNAMIC_NSCSTRING_NONSENSITIVE("ChromeUtils::Import",
OTHER, aResourceURI);
JSContext* cx = aGlobal.Context();
JS::Rooted<JSObject*> global(cx);
JS::Rooted<JSObject*> exports(cx);
nsresult rv = moduleloader->Import(cx, aResourceURI, &global, &exports);
if (NS_FAILED(rv)) {
aRv.Throw(rv);
return;
}
// Import() on the component loader can return NS_OK while leaving an
// exception on the JSContext. Check for that case.
if (JS_IsExceptionPending(cx)) {
aRv.NoteJSContextException(cx);
return;
}
if (aTargetObj.WasPassed()) {
if (!JS_AssignObject(cx, aTargetObj.Value(), exports)) {
aRv.Throw(NS_ERROR_FAILURE);
return;
}
}
if (!JS_WrapObject(cx, &exports)) {
aRv.Throw(NS_ERROR_FAILURE);
return;
}
aRetval.set(exports);
}
static mozJSModuleLoader* GetContextualESLoader(
const Optional<bool>& aLoadInDevToolsLoader, JSObject* aGlobal) {
RefPtr devToolsModuleloader = mozJSModuleLoader::GetDevToolsLoader();
// We should load the module in the DevTools loader if:
// - ChromeUtils.importESModule's `loadInDevToolsLoader` option is true, or,
// - if the callsite is from a module loaded in the DevTools loader and
// `loadInDevToolsLoader` isn't an explicit false.
bool shouldUseDevToolsLoader =
(aLoadInDevToolsLoader.WasPassed() && aLoadInDevToolsLoader.Value()) ||
(devToolsModuleloader && !aLoadInDevToolsLoader.WasPassed() &&
devToolsModuleloader->IsLoaderGlobal(aGlobal));
if (shouldUseDevToolsLoader) {
return mozJSModuleLoader::GetOrCreateDevToolsLoader();
}
return mozJSModuleLoader::Get();
}
/* static */
void ChromeUtils::ImportESModule(
const GlobalObject& aGlobal, const nsAString& aResourceURI,
const ImportESModuleOptionsDictionary& aOptions,
JS::MutableHandle<JSObject*> aRetval, ErrorResult& aRv) {
RefPtr moduleloader =
GetContextualESLoader(aOptions.mLoadInDevToolsLoader, aGlobal.Get());
MOZ_ASSERT(moduleloader);
NS_ConvertUTF16toUTF8 registryLocation(aResourceURI);
AUTO_PROFILER_LABEL_DYNAMIC_NSCSTRING_NONSENSITIVE(
"ChromeUtils::ImportESModule", OTHER, registryLocation);
JSContext* cx = aGlobal.Context();
JS::Rooted<JSObject*> moduleNamespace(cx);
nsresult rv =
moduleloader->ImportESModule(cx, registryLocation, &moduleNamespace);
if (NS_FAILED(rv)) {
aRv.Throw(rv);
return;
}
MOZ_ASSERT(!JS_IsExceptionPending(cx));
if (!JS_WrapObject(cx, &moduleNamespace)) {
aRv.Throw(NS_ERROR_FAILURE);
return;
}
aRetval.set(moduleNamespace);
}
namespace lazy_getter {
static const size_t SLOT_ID = 0;
static const size_t SLOT_URI = 1;
static const size_t SLOT_PARAMS = 1;
static const size_t PARAM_INDEX_TARGET = 0;
static const size_t PARAM_INDEX_LAMBDA = 1;
static const size_t PARAMS_COUNT = 2;
static bool ExtractArgs(JSContext* aCx, JS::CallArgs& aArgs,
JS::MutableHandle<JSObject*> aCallee,
JS::MutableHandle<JSObject*> aThisObj,
JS::MutableHandle<jsid> aId) {
aCallee.set(&aArgs.callee());
JS::Handle<JS::Value> thisv = aArgs.thisv();
if (!thisv.isObject()) {
JS_ReportErrorASCII(aCx, "Invalid target object");
return false;
}
aThisObj.set(&thisv.toObject());
JS::Rooted<JS::Value> id(aCx,
js::GetFunctionNativeReserved(aCallee, SLOT_ID));
MOZ_ALWAYS_TRUE(JS_ValueToId(aCx, id, aId));
return true;
}
static bool JSLazyGetter(JSContext* aCx, unsigned aArgc, JS::Value* aVp) {
JS::CallArgs args = JS::CallArgsFromVp(aArgc, aVp);
JS::Rooted<JSObject*> callee(aCx);
JS::Rooted<JSObject*> unused(aCx);
JS::Rooted<jsid> id(aCx);
if (!ExtractArgs(aCx, args, &callee, &unused, &id)) {
return false;
}
JS::Rooted<JS::Value> paramsVal(
aCx, js::GetFunctionNativeReserved(callee, SLOT_PARAMS));
if (paramsVal.isUndefined()) {
args.rval().setUndefined();
return true;
}
// Avoid calling the lambda multiple times, in case of:
// * the getter function is retrieved from property descriptor and called
// * the lambda gets the property again
// * the getter function throws and accessed again
js::SetFunctionNativeReserved(callee, SLOT_PARAMS, JS::UndefinedHandleValue);
JS::Rooted<JSObject*> paramsObj(aCx, &paramsVal.toObject());
JS::Rooted<JS::Value> targetVal(aCx);
JS::Rooted<JS::Value> lambdaVal(aCx);
if (!JS_GetElement(aCx, paramsObj, PARAM_INDEX_TARGET, &targetVal)) {
return false;
}
if (!JS_GetElement(aCx, paramsObj, PARAM_INDEX_LAMBDA, &lambdaVal)) {
return false;
}
JS::Rooted<JSObject*> targetObj(aCx, &targetVal.toObject());
JS::Rooted<JS::Value> value(aCx);
if (!JS::Call(aCx, targetObj, lambdaVal, JS::HandleValueArray::empty(),
&value)) {
return false;
}
if (!JS_DefinePropertyById(aCx, targetObj, id, value, JSPROP_ENUMERATE)) {
return false;
}
args.rval().set(value);
return true;
}
static bool DefineLazyGetter(JSContext* aCx, JS::Handle<JSObject*> aTarget,
JS::Handle<JS::Value> aName,
JS::Handle<JSObject*> aLambda) {
JS::Rooted<jsid> id(aCx);
if (!JS_ValueToId(aCx, aName, &id)) {
return false;
}
JS::Rooted<JSObject*> getter(
aCx, JS_GetFunctionObject(
js::NewFunctionByIdWithReserved(aCx, JSLazyGetter, 0, 0, id)));
if (!getter) {
JS_ReportOutOfMemory(aCx);
return false;
}
JS::RootedVector<JS::Value> params(aCx);
if (!params.resize(PARAMS_COUNT)) {
return false;
}
params[PARAM_INDEX_TARGET].setObject(*aTarget);
params[PARAM_INDEX_LAMBDA].setObject(*aLambda);
JS::Rooted<JSObject*> paramsObj(aCx, JS::NewArrayObject(aCx, params));
if (!paramsObj) {
return false;
}
js::SetFunctionNativeReserved(getter, SLOT_ID, aName);
js::SetFunctionNativeReserved(getter, SLOT_PARAMS,
JS::ObjectValue(*paramsObj));
return JS_DefinePropertyById(aCx, aTarget, id, getter, nullptr,
JSPROP_ENUMERATE);
}
enum class ModuleType { JSM, ESM };
static bool ModuleGetterImpl(JSContext* aCx, unsigned aArgc, JS::Value* aVp,
ModuleType aType) {
JS::CallArgs args = JS::CallArgsFromVp(aArgc, aVp);
JS::Rooted<JSObject*> callee(aCx);
JS::Rooted<JSObject*> thisObj(aCx);
JS::Rooted<jsid> id(aCx);
if (!ExtractArgs(aCx, args, &callee, &thisObj, &id)) {
return false;
}
JS::Rooted<JSString*> moduleURI(
aCx, js::GetFunctionNativeReserved(callee, SLOT_URI).toString());
JS::UniqueChars bytes = JS_EncodeStringToUTF8(aCx, moduleURI);
if (!bytes) {
return false;
}
nsDependentCString uri(bytes.get());
RefPtr moduleloader =
aType == ModuleType::JSM
? mozJSModuleLoader::Get()
: GetContextualESLoader(
Optional<bool>(),
JS::GetNonCCWObjectGlobal(js::UncheckedUnwrap(thisObj)));
MOZ_ASSERT(moduleloader);
JS::Rooted<JS::Value> value(aCx);
if (aType == ModuleType::JSM) {
JS::Rooted<JSObject*> moduleGlobal(aCx);
JS::Rooted<JSObject*> moduleExports(aCx);
nsresult rv = moduleloader->Import(aCx, uri, &moduleGlobal, &moduleExports);
if (NS_FAILED(rv)) {
Throw(aCx, rv);
return false;
}
// JSM's exports is from the same realm.
if (!JS_GetPropertyById(aCx, moduleExports, id, &value)) {
return false;
}
} else {
JS::Rooted<JSObject*> moduleNamespace(aCx);
nsresult rv = moduleloader->ImportESModule(aCx, uri, &moduleNamespace);
if (NS_FAILED(rv)) {
Throw(aCx, rv);
return false;
}
// ESM's namespace is from the module's realm.
{
JSAutoRealm ar(aCx, moduleNamespace);
if (!JS_GetPropertyById(aCx, moduleNamespace, id, &value)) {
return false;
}
}
if (!JS_WrapValue(aCx, &value)) {
return false;
}
}
if (!JS_DefinePropertyById(aCx, thisObj, id, value, JSPROP_ENUMERATE)) {
return false;
}
args.rval().set(value);
return true;
}
static bool JSModuleGetter(JSContext* aCx, unsigned aArgc, JS::Value* aVp) {
return ModuleGetterImpl(aCx, aArgc, aVp, ModuleType::JSM);
}
static bool ESModuleGetter(JSContext* aCx, unsigned aArgc, JS::Value* aVp) {
return ModuleGetterImpl(aCx, aArgc, aVp, ModuleType::ESM);
}
static bool ModuleSetterImpl(JSContext* aCx, unsigned aArgc, JS::Value* aVp) {
JS::CallArgs args = JS::CallArgsFromVp(aArgc, aVp);
JS::Rooted<JSObject*> callee(aCx);
JS::Rooted<JSObject*> thisObj(aCx);
JS::Rooted<jsid> id(aCx);
if (!ExtractArgs(aCx, args, &callee, &thisObj, &id)) {
return false;
}
return JS_DefinePropertyById(aCx, thisObj, id, args.get(0), JSPROP_ENUMERATE);
}
static bool JSModuleSetter(JSContext* aCx, unsigned aArgc, JS::Value* aVp) {
return ModuleSetterImpl(aCx, aArgc, aVp);
}
static bool ESModuleSetter(JSContext* aCx, unsigned aArgc, JS::Value* aVp) {
return ModuleSetterImpl(aCx, aArgc, aVp);
}
static bool DefineJSModuleGetter(JSContext* aCx, JS::Handle<JSObject*> aTarget,
const nsAString& aId,
const nsAString& aResourceURI) {
JS::Rooted<JS::Value> uri(aCx);
JS::Rooted<JS::Value> idValue(aCx);
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, JSModuleGetter, 0, 0, id)));
JS::Rooted<JSObject*> setter(
aCx, JS_GetFunctionObject(
js::NewFunctionByIdWithReserved(aCx, JSModuleSetter, 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_ENUMERATE);
}
static bool DefineESModuleGetter(JSContext* aCx, JS::Handle<JSObject*> aTarget,
JS::Handle<JS::PropertyKey> aId,
JS::Handle<JS::Value> aResourceURI) {
JS::Rooted<JS::Value> idVal(aCx, JS::StringValue(aId.toString()));
JS::Rooted<JSObject*> getter(
aCx, JS_GetFunctionObject(js::NewFunctionByIdWithReserved(
aCx, ESModuleGetter, 0, 0, aId)));
JS::Rooted<JSObject*> setter(
aCx, JS_GetFunctionObject(js::NewFunctionByIdWithReserved(
aCx, ESModuleSetter, 0, 0, aId)));
if (!getter || !setter) {
JS_ReportOutOfMemory(aCx);
return false;
}
js::SetFunctionNativeReserved(getter, SLOT_ID, idVal);
js::SetFunctionNativeReserved(setter, SLOT_ID, idVal);
js::SetFunctionNativeReserved(getter, SLOT_URI, aResourceURI);
return JS_DefinePropertyById(aCx, aTarget, aId, getter, setter,
JSPROP_ENUMERATE);
}
} // namespace lazy_getter
/* static */
void ChromeUtils::DefineLazyGetter(const GlobalObject& aGlobal,
JS::Handle<JSObject*> aTarget,
JS::Handle<JS::Value> aName,
JS::Handle<JSObject*> aLambda,
ErrorResult& aRv) {
JSContext* cx = aGlobal.Context();
if (!lazy_getter::DefineLazyGetter(cx, aTarget, aName, aLambda)) {
aRv.NoteJSContextException(cx);
return;
}
}
/* static */
void ChromeUtils::DefineModuleGetter(const GlobalObject& global,
JS::Handle<JSObject*> target,
const nsAString& id,
const nsAString& resourceURI,
ErrorResult& aRv) {
if (!lazy_getter::DefineJSModuleGetter(global.Context(), target, id,
resourceURI)) {
aRv.NoteJSContextException(global.Context());
}
}
/* static */
void ChromeUtils::DefineESModuleGetters(const GlobalObject& global,
JS::Handle<JSObject*> target,
JS::Handle<JSObject*> modules,
ErrorResult& aRv) {
JSContext* cx = global.Context();
JS::Rooted<JS::IdVector> props(cx, JS::IdVector(cx));
if (!JS_Enumerate(cx, modules, &props)) {
aRv.NoteJSContextException(cx);
return;
}
JS::Rooted<JS::PropertyKey> prop(cx);
JS::Rooted<JS::Value> resourceURIVal(cx);
for (JS::PropertyKey tmp : props) {
prop = tmp;
if (!prop.isString()) {
aRv.Throw(NS_ERROR_FAILURE);
return;
}
if (!JS_GetPropertyById(cx, modules, prop, &resourceURIVal)) {
aRv.NoteJSContextException(cx);
return;
}
if (!lazy_getter::DefineESModuleGetter(cx, target, prop, resourceURIVal)) {
aRv.NoteJSContextException(cx);
return;
}
}
}
#ifdef XP_UNIX
/* static */
void ChromeUtils::GetLibcConstants(const GlobalObject&,
LibcConstants& aConsts) {
aConsts.mEINTR.Construct(EINTR);
aConsts.mEACCES.Construct(EACCES);
aConsts.mEAGAIN.Construct(EAGAIN);
aConsts.mEINVAL.Construct(EINVAL);
aConsts.mENOSYS.Construct(ENOSYS);
aConsts.mF_SETFD.Construct(F_SETFD);
aConsts.mF_SETFL.Construct(F_SETFL);
aConsts.mFD_CLOEXEC.Construct(FD_CLOEXEC);
aConsts.mAT_EACCESS.Construct(AT_EACCESS);
aConsts.mO_CREAT.Construct(O_CREAT);
aConsts.mO_NONBLOCK.Construct(O_NONBLOCK);
aConsts.mO_WRONLY.Construct(O_WRONLY);
aConsts.mPOLLERR.Construct(POLLERR);
aConsts.mPOLLHUP.Construct(POLLHUP);
aConsts.mPOLLIN.Construct(POLLIN);
aConsts.mPOLLNVAL.Construct(POLLNVAL);
aConsts.mPOLLOUT.Construct(POLLOUT);
aConsts.mWNOHANG.Construct(WNOHANG);
# ifdef XP_LINUX
aConsts.mPR_CAPBSET_READ.Construct(PR_CAPBSET_READ);
# endif
}
#endif
/* 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::CreateOriginAttributesFromOriginSuffix(
dom::GlobalObject& aGlobal, const nsAString& aSuffix,
dom::OriginAttributesDictionary& aAttrs, ErrorResult& aRv) {
OriginAttributes attrs;
nsAutoCString suffix;
if (!attrs.PopulateFromSuffix(NS_ConvertUTF16toUTF8(aSuffix))) {
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 == aB;
}
/* static */
void ChromeUtils::GetBaseDomainFromPartitionKey(dom::GlobalObject& aGlobal,
const nsAString& aPartitionKey,
nsAString& aBaseDomain,
ErrorResult& aRv) {
nsString scheme;
nsString pkBaseDomain;
int32_t port;
if (!mozilla::OriginAttributes::ParsePartitionKey(aPartitionKey, scheme,
pkBaseDomain, port)) {
aRv.Throw(NS_ERROR_FAILURE);
return;
}
aBaseDomain = pkBaseDomain;
}
/* static */
void ChromeUtils::GetPartitionKeyFromURL(dom::GlobalObject& aGlobal,
const nsAString& aURL,
nsAString& aPartitionKey,
ErrorResult& aRv) {
nsCOMPtr<nsIURI> uri;
nsresult rv = NS_NewURI(getter_AddRefs(uri), aURL);
if (NS_SUCCEEDED(rv) && uri->SchemeIs("chrome")) {
rv = NS_ERROR_FAILURE;
}
if (NS_WARN_IF(NS_FAILED(rv))) {
aPartitionKey.Truncate();
aRv.Throw(rv);
return;
}
mozilla::OriginAttributes attrs;
attrs.SetPartitionKey(uri);
aPartitionKey = attrs.mPartitionKey;
}
#ifdef NIGHTLY_BUILD
/* static */
void ChromeUtils::GetRecentJSDevError(GlobalObject& aGlobal,
JS::MutableHandle<JS::Value> 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
void ChromeUtils::ClearStyleSheetCacheByPrincipal(GlobalObject&,
nsIPrincipal* aForPrincipal) {
SharedStyleSheetCache::Clear(aForPrincipal);
}
void ChromeUtils::ClearStyleSheetCacheByBaseDomain(
GlobalObject&, const nsACString& aBaseDomain) {
SharedStyleSheetCache::Clear(nullptr, &aBaseDomain);
}
void ChromeUtils::ClearStyleSheetCache(GlobalObject&) {
SharedStyleSheetCache::Clear();
}
#define PROCTYPE_TO_WEBIDL_CASE(_procType, _webidl) \
case mozilla::ProcType::_procType: \
return WebIDLProcType::_webidl
static WebIDLProcType ProcTypeToWebIDL(mozilla::ProcType aType) {
// Max is the value of the last enum, not the length, so add one.
static_assert(
WebIDLProcTypeValues::Count == static_cast<size_t>(ProcType::Max) + 1,
"In order for this static cast to be okay, "
"WebIDLProcType must match ProcType exactly");
// These must match the similar ones in E10SUtils.sys.mjs, RemoteTypes.h,
// ProcInfo.h and ChromeUtils.webidl
switch (aType) {
PROCTYPE_TO_WEBIDL_CASE(Web, Web);
PROCTYPE_TO_WEBIDL_CASE(WebIsolated, WebIsolated);
PROCTYPE_TO_WEBIDL_CASE(File, File);
PROCTYPE_TO_WEBIDL_CASE(Extension, Extension);
PROCTYPE_TO_WEBIDL_CASE(PrivilegedAbout, Privilegedabout);
PROCTYPE_TO_WEBIDL_CASE(PrivilegedMozilla, Privilegedmozilla);
PROCTYPE_TO_WEBIDL_CASE(WebCOOPCOEP, WithCoopCoep);
PROCTYPE_TO_WEBIDL_CASE(WebServiceWorker, WebServiceWorker);
#define GECKO_PROCESS_TYPE(enum_value, enum_name, string_name, proc_typename, \
process_bin_type, procinfo_typename, \
webidl_typename, allcaps_name) \
PROCTYPE_TO_WEBIDL_CASE(procinfo_typename, webidl_typename);
#define SKIP_PROCESS_TYPE_CONTENT
#ifndef MOZ_ENABLE_FORKSERVER
# define SKIP_PROCESS_TYPE_FORKSERVER
#endif // MOZ_ENABLE_FORKSERVER
#include "mozilla/GeckoProcessTypes.h"
#undef SKIP_PROCESS_TYPE_CONTENT
#ifndef MOZ_ENABLE_FORKSERVER
# undef SKIP_PROCESS_TYPE_FORKSERVER
#endif // MOZ_ENABLE_FORKSERVER
#undef GECKO_PROCESS_TYPE
PROCTYPE_TO_WEBIDL_CASE(Preallocated, Preallocated);
PROCTYPE_TO_WEBIDL_CASE(Unknown, Unknown);
}
MOZ_ASSERT(false, "Unhandled case in ProcTypeToWebIDL");
return WebIDLProcType::Unknown;
}
#undef PROCTYPE_TO_WEBIDL_CASE
/* static */
already_AddRefed<Promise> ChromeUtils::RequestProcInfo(GlobalObject& aGlobal,
ErrorResult& aRv) {
// This function will use IPDL to enable threads info on macOS
// see https://bugzilla.mozilla.org/show_bug.cgi?id=1529023
if (!XRE_IsParentProcess()) {
aRv.Throw(NS_ERROR_FAILURE);
return nullptr;
}
// Prepare the JS promise that will hold our response.
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);
// Get a list of processes to examine and pre-fill them with available info.
// Note that this is subject to race conditions: just because we have a
// process in the list doesn't mean that the process will still be alive when
// we attempt to get its information. Followup code MUST be able to fail
// gracefully on some processes and still return whichever information is
// available.
// Get all the content parents.
// Note that this array includes even the long dead content parents, so we
// might have some garbage, especially with Fission.
// SAFETY NOTE: `contentParents` is only valid if used synchronously.
// Anything else and you may end up dealing with dangling pointers.
nsTArray<ContentParent*> contentParents;
ContentParent::GetAll(contentParents);
// Prepare our background request.
// We reserve one more slot for the browser process itself.
nsTArray<ProcInfoRequest> requests(contentParents.Length() + 1);
// Requesting process info for the browser process itself.
requests.EmplaceBack(
/* aPid = */ base::GetCurrentProcId(),
/* aProcessType = */ ProcType::Browser,
/* aOrigin = */ ""_ns,
/* aWindowInfo = */ nsTArray<WindowInfo>(),
/* aUtilityInfo = */ nsTArray<UtilityInfo>());
// First handle non-ContentParent processes.
mozilla::ipc::GeckoChildProcessHost::GetAll(
[&requests](mozilla::ipc::GeckoChildProcessHost* aGeckoProcess) {
base::ProcessId childPid = aGeckoProcess->GetChildProcessId();
if (childPid == 0) {
// Something went wrong with this process, it may be dead already,
// fail gracefully.
return;
}
mozilla::ProcType type = mozilla::ProcType::Unknown;
switch (aGeckoProcess->GetProcessType()) {
case GeckoProcessType::GeckoProcessType_Content: {
// These processes are handled separately.
return;
}
#define GECKO_PROCESS_TYPE(enum_value, enum_name, string_name, proc_typename, \
process_bin_type, procinfo_typename, \
webidl_typename, allcaps_name) \
case GeckoProcessType::GeckoProcessType_##enum_name: { \
type = mozilla::ProcType::procinfo_typename; \
break; \
}
#define SKIP_PROCESS_TYPE_CONTENT
#ifndef MOZ_ENABLE_FORKSERVER
# define SKIP_PROCESS_TYPE_FORKSERVER
#endif // MOZ_ENABLE_FORKSERVER
#include "mozilla/GeckoProcessTypes.h"
#ifndef MOZ_ENABLE_FORKSERVER
# undef SKIP_PROCESS_TYPE_FORKSERVER
#endif // MOZ_ENABLE_FORKSERVER
#undef SKIP_PROCESS_TYPE_CONTENT
#undef GECKO_PROCESS_TYPE
default:
// Leave the default Unknown value in |type|.
break;
}
// Attach utility actor information to the process.
nsTArray<UtilityInfo> utilityActors;
if (aGeckoProcess->GetProcessType() ==
GeckoProcessType::GeckoProcessType_Utility) {
RefPtr<mozilla::ipc::UtilityProcessManager> upm =
mozilla::ipc::UtilityProcessManager::GetSingleton();
if (!utilityActors.AppendElements(upm->GetActors(aGeckoProcess),
fallible)) {
NS_WARNING("Error adding actors");
return;
}
}
requests.EmplaceBack(
/* aPid = */ childPid,
/* aProcessType = */ type,
/* aOrigin = */ ""_ns,
/* aWindowInfo = */ nsTArray<WindowInfo>(), // Without a
// ContentProcess, no
// DOM windows.
/* aUtilityInfo = */ std::move(utilityActors),
/* aChild = */ 0 // Without a ContentProcess, no ChildId.
#ifdef XP_MACOSX
,
/* aChildTask = */ aGeckoProcess->GetChildTask()
#endif // XP_MACOSX
);
});
// Now handle ContentParents.
for (const auto* contentParent : contentParents) {
if (!contentParent || !contentParent->Process()) {
// Presumably, the process is dead or dying.
continue;
}
base::ProcessId pid = contentParent->Process()->GetChildProcessId();
if (pid == 0) {
// Presumably, the process is dead or dying.
continue;
}
if (contentParent->Process()->GetProcessType() !=
GeckoProcessType::GeckoProcessType_Content) {
// We're probably racing against a process changing type.
// We'll get it in the next call, skip it for the moment.
continue;
}
// Since this code is executed synchronously on the main thread,
// processes cannot die while we're in this loop.
mozilla::ProcType type = mozilla::ProcType::Unknown;
// Convert the remoteType into a ProcType.
// Ideally, the remoteType should be strongly typed
// upstream, this would make the conversion less brittle.
const nsAutoCString remoteType(contentParent->GetRemoteType());
if (StringBeginsWith(remoteType, FISSION_WEB_REMOTE_TYPE)) {
// WARNING: Do not change the order, as
// `DEFAULT_REMOTE_TYPE` is a prefix of
// `FISSION_WEB_REMOTE_TYPE`.
type = mozilla::ProcType::WebIsolated;
} else if (StringBeginsWith(remoteType, SERVICEWORKER_REMOTE_TYPE)) {
type = mozilla::ProcType::WebServiceWorker;
} else if (StringBeginsWith(remoteType,
WITH_COOP_COEP_REMOTE_TYPE_PREFIX)) {
type = mozilla::ProcType::WebCOOPCOEP;
} else if (remoteType == FILE_REMOTE_TYPE) {
type = mozilla::ProcType::File;
} else if (remoteType == EXTENSION_REMOTE_TYPE) {
type = mozilla::ProcType::Extension;
} else if (remoteType == PRIVILEGEDABOUT_REMOTE_TYPE) {
type = mozilla::ProcType::PrivilegedAbout;
} else if (remoteType == PRIVILEGEDMOZILLA_REMOTE_TYPE) {
type = mozilla::ProcType::PrivilegedMozilla;
} else if (remoteType == PREALLOC_REMOTE_TYPE) {
type = mozilla::ProcType::Preallocated;
} else if (StringBeginsWith(remoteType, DEFAULT_REMOTE_TYPE)) {
type = mozilla::ProcType::Web;
} else {
MOZ_CRASH_UNSAFE_PRINTF("Unknown remoteType '%s'", remoteType.get());
}
// By convention, everything after '=' is the origin.
nsAutoCString origin;
nsACString::const_iterator cursor;
nsACString::const_iterator end;
remoteType.BeginReading(cursor);
remoteType.EndReading(end);
if (FindCharInReadable('=', cursor, end)) {
origin = Substring(++cursor, end);
}
// Attach DOM window information to the process.
nsTArray<WindowInfo> windows;
for (const auto& browserParentWrapperKey :
contentParent->ManagedPBrowserParent()) {
for (const auto& windowGlobalParentWrapperKey :
browserParentWrapperKey->ManagedPWindowGlobalParent()) {
// WindowGlobalParent is the only immediate subclass of
// PWindowGlobalParent.
auto* windowGlobalParent =
static_cast<WindowGlobalParent*>(windowGlobalParentWrapperKey);
nsString documentTitle;
windowGlobalParent->GetDocumentTitle(documentTitle);
WindowInfo* window = windows.EmplaceBack(
fallible,
/* aOuterWindowId = */ windowGlobalParent->OuterWindowId(),
/* aDocumentURI = */ windowGlobalParent->GetDocumentURI(),
/* aDocumentTitle = */ std::move(documentTitle),
/* aIsProcessRoot = */ windowGlobalParent->IsProcessRoot(),
/* aIsInProcess = */ windowGlobalParent->IsInProcess());
if (!window) {
aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
return nullptr;
}
}
}
requests.EmplaceBack(
/* aPid = */ pid,
/* aProcessType = */ type,
/* aOrigin = */ origin,
/* aWindowInfo = */ std::move(windows),
/* aUtilityInfo = */ nsTArray<UtilityInfo>(),
/* aChild = */ contentParent->ChildID()
#ifdef XP_MACOSX
,
/* aChildTask = */ contentParent->Process()->GetChildTask()
#endif // XP_MACOSX
);
}
// Now place background request.
RefPtr<nsISerialEventTarget> target = global->SerialEventTarget();
mozilla::GetProcInfo(std::move(requests))
->Then(
target, __func__,
[target,
domPromise](const HashMap<base::ProcessId, ProcInfo>& aSysProcInfo) {
ParentProcInfoDictionary parentInfo;
if (aSysProcInfo.count() == 0) {
// For some reason, we couldn't get *any* info.
// Maybe a sandboxing issue?
domPromise->MaybeReject(NS_ERROR_UNEXPECTED);
return;
}
nsTArray<ChildProcInfoDictionary> childrenInfo(
aSysProcInfo.count() - 1);
for (auto iter = aSysProcInfo.iter(); !iter.done(); iter.next()) {
const auto& sysProcInfo = iter.get().value();
nsresult rv;
if (sysProcInfo.type == ProcType::Browser) {
rv = mozilla::CopySysProcInfoToDOM(sysProcInfo, &parentInfo);
if (NS_FAILED(rv)) {
// Failing to copy? That's probably not something from we can
// (or should) try to recover gracefully.
domPromise->MaybeReject(NS_ERROR_OUT_OF_MEMORY);
return;
}
MOZ_ASSERT(sysProcInfo.childId == 0);
MOZ_ASSERT(sysProcInfo.origin.IsEmpty());
} else {
mozilla::dom::ChildProcInfoDictionary* childInfo =
childrenInfo.AppendElement(fallible);
if (!childInfo) {
domPromise->MaybeReject(NS_ERROR_OUT_OF_MEMORY);
return;
}
rv = mozilla::CopySysProcInfoToDOM(sysProcInfo, childInfo);
if (NS_FAILED(rv)) {
domPromise->MaybeReject(NS_ERROR_OUT_OF_MEMORY);
return;
}
// Copy Firefox info.
childInfo->mChildID = sysProcInfo.childId;
childInfo->mOrigin = sysProcInfo.origin;
childInfo->mType = ProcTypeToWebIDL(sysProcInfo.type);
for (const auto& source : sysProcInfo.windows) {
auto* dest = childInfo->mWindows.AppendElement(fallible);
if (!dest) {
domPromise->MaybeReject(NS_ERROR_OUT_OF_MEMORY);
return;
}
dest->mOuterWindowId = source.outerWindowId;
dest->mDocumentURI = source.documentURI;
dest->mDocumentTitle = source.documentTitle;
dest->mIsProcessRoot = source.isProcessRoot;
dest->mIsInProcess = source.isInProcess;
}
if (sysProcInfo.type == ProcType::Utility) {
for (const auto& source : sysProcInfo.utilityActors) {
auto* dest =
childInfo->mUtilityActors.AppendElement(fallible);
if (!dest) {
domPromise->MaybeReject(NS_ERROR_OUT_OF_MEMORY);
return;
}
dest->mActorName = source.actorName;
}
}
}
}
// Attach the children to the parent.
mozilla::dom::Sequence<mozilla::dom::ChildProcInfoDictionary>
children(std::move(childrenInfo));
parentInfo.mChildren = std::move(children);
domPromise->MaybeResolve(parentInfo);
},
[domPromise](nsresult aRv) { domPromise->MaybeReject(aRv); });
MOZ_ASSERT(domPromise);
// sending back the promise instance
return domPromise.forget();
}
/* static */
bool ChromeUtils::VsyncEnabled(GlobalObject& aGlobal) {
return mozilla::gfx::VsyncSource::GetFastestVsyncRate().isSome();
}
void ChromeUtils::SetPerfStatsCollectionMask(GlobalObject& aGlobal,
uint64_t aMask) {
PerfStats::SetCollectionMask(static_cast<PerfStats::MetricMask>(aMask));
}
already_AddRefed<Promise> ChromeUtils::CollectPerfStats(GlobalObject& aGlobal,
ErrorResult& aRv) {
// Creating a JS promise
nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(aGlobal.GetAsSupports());
MOZ_ASSERT(global);
RefPtr<Promise> promise = Promise::Create(global, aRv);
if (aRv.Failed()) {
return nullptr;
}
RefPtr<PerfStats::PerfStatsPromise> extPromise =
PerfStats::CollectPerfStatsJSON();
extPromise->Then(
GetCurrentSerialEventTarget(), __func__,
[promise](const nsCString& aResult) {
promise->MaybeResolve(NS_ConvertUTF8toUTF16(aResult));
},
[promise](bool aValue) { promise->MaybeReject(NS_ERROR_FAILURE); });
return promise.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::Rooted<JSObject*> 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::IsMaybeWrappedSavedFrame(aStack)) {
aRv.Throw(NS_ERROR_INVALID_ARG);
return;
}
JSContext* cx = aGlobal.Context();
auto cleanup = MakeScopeExit([&]() { aRv.NoteJSContextException(cx); });
JS::Rooted<JSObject*> retVal(cx);
{
JS::Rooted<JSString*> fileName(cx, JS_GetEmptyString(cx));
uint32_t line = 0;
JS::TaggedColumnNumberOneOrigin column;
Maybe<JSAutoRealm> ar;
JS::Rooted<JSObject*> stack(cx);
if (aStack) {
stack = UncheckedUnwrap(aStack);
ar.emplace(cx, stack);
JSPrincipals* principals =
JS::GetRealmPrincipals(js::GetContextRealm(cx));
if (JS::GetSavedFrameLine(cx, principals, stack, &line) !=
JS::SavedFrameResult::Ok ||
JS::GetSavedFrameColumn(cx, principals, stack, &column) !=
JS::SavedFrameResult::Ok ||
JS::GetSavedFrameSource(cx, principals, stack, &fileName) !=
JS::SavedFrameResult::Ok) {
return;
}
}
JS::Rooted<JSString*> message(cx);
{
JS::Rooted<JS::Value> 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,
JS::ColumnNumberOneOrigin(column.oneOriginValue()),
nullptr, message, JS::NothingHandleValue, &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();
}
/* static */
bool ChromeUtils::HasReportingHeaderForOrigin(GlobalObject& global,
const nsAString& aOrigin,
ErrorResult& aRv) {
if (!XRE_IsParentProcess()) {
aRv.Throw(NS_ERROR_FAILURE);
return false;
}
return ReportingHeader::HasReportingHeaderForOrigin(
NS_ConvertUTF16toUTF8(aOrigin));
}
/* static */
PopupBlockerState ChromeUtils::GetPopupControlState(GlobalObject& aGlobal) {
switch (PopupBlocker::GetPopupControlState()) {
case PopupBlocker::PopupControlState::openAllowed:
return PopupBlockerState::OpenAllowed;
case PopupBlocker::PopupControlState::openControlled:
return PopupBlockerState::OpenControlled;
case PopupBlocker::PopupControlState::openBlocked:
return PopupBlockerState::OpenBlocked;
case PopupBlocker::PopupControlState::openAbused:
return PopupBlockerState::OpenAbused;
case PopupBlocker::PopupControlState::openOverridden:
return PopupBlockerState::OpenOverridden;
default:
MOZ_CRASH(
"PopupBlocker::PopupControlState and PopupBlockerState are out of "
"sync");
}
}
/* static */
double ChromeUtils::LastExternalProtocolIframeAllowed(GlobalObject& aGlobal) {
TimeStamp when = PopupBlocker::WhenLastExternalProtocolIframeAllowed();
if (when.IsNull()) {
return 0;
}
TimeDuration duration = TimeStamp::Now() - when;
return duration.ToMilliseconds();
}
/* static */
void ChromeUtils::ResetLastExternalProtocolIframeAllowed(
GlobalObject& aGlobal) {
PopupBlocker::ResetLastExternalProtocolIframeAllowed();
}
/* static */
void ChromeUtils::EndWheelTransaction(GlobalObject& aGlobal) {
// This allows us to end the current wheel transaction from the browser
// chrome. We do not need to perform any checks before calling
// EndTransaction(), as it should do nothing in the case that there is
// no current wheel transaction.
WheelTransaction::EndTransaction();
}
/* static */
void ChromeUtils::RegisterWindowActor(const GlobalObject& aGlobal,
const nsACString& aName,
const WindowActorOptions& aOptions,
ErrorResult& aRv) {
MOZ_ASSERT(XRE_IsParentProcess());
RefPtr<JSActorService> service = JSActorService::GetSingleton();
service->RegisterWindowActor(aName, aOptions, aRv);
}
/* static */
void ChromeUtils::UnregisterWindowActor(const GlobalObject& aGlobal,
const nsACString& aName) {
MOZ_ASSERT(XRE_IsParentProcess());
RefPtr<JSActorService> service = JSActorService::GetSingleton();
service->UnregisterWindowActor(aName);
}
/* static */
void ChromeUtils::RegisterProcessActor(const GlobalObject& aGlobal,
const nsACString& aName,
const ProcessActorOptions& aOptions,
ErrorResult& aRv) {
MOZ_ASSERT(XRE_IsParentProcess());
RefPtr<JSActorService> service = JSActorService::GetSingleton();
service->RegisterProcessActor(aName, aOptions, aRv);
}
/* static */
void ChromeUtils::UnregisterProcessActor(const GlobalObject& aGlobal,
const nsACString& aName) {
MOZ_ASSERT(XRE_IsParentProcess());
RefPtr<JSActorService> service = JSActorService::GetSingleton();
service->UnregisterProcessActor(aName);
}
/* static */
bool ChromeUtils::IsClassifierBlockingErrorCode(GlobalObject& aGlobal,
uint32_t aError) {
return net::UrlClassifierFeatureFactory::IsClassifierBlockingErrorCode(
static_cast<nsresult>(aError));
}
/* static */
void ChromeUtils::PrivateNoteIntentionalCrash(const GlobalObject& aGlobal,
ErrorResult& aError) {
if (XRE_IsContentProcess()) {
NoteIntentionalCrash("tab");
return;
}
aError.Throw(NS_ERROR_NOT_IMPLEMENTED);
}
/* static */
nsIDOMProcessChild* ChromeUtils::GetDomProcessChild(const GlobalObject&) {
return nsIDOMProcessChild::GetSingleton();
}
/* static */
void ChromeUtils::GetAllDOMProcesses(
GlobalObject& aGlobal, nsTArray<RefPtr<nsIDOMProcessParent>>& aParents,
ErrorResult& aRv) {
if (!XRE_IsParentProcess()) {
aRv.ThrowNotAllowedError(
"getAllDOMProcesses() may only be called in the parent process");
return;
}
aParents.Clear();
// Always add the parent process nsIDOMProcessParent first
aParents.AppendElement(InProcessParent::Singleton());
// Before adding nsIDOMProcessParent for all the content processes
for (auto* cp : ContentParent::AllProcesses(ContentParent::eLive)) {
aParents.AppendElement(cp);
}
}
/* static */
void ChromeUtils::ConsumeInteractionData(
GlobalObject& aGlobal, Record<nsString, InteractionData>& aInteractions,
ErrorResult& aRv) {
if (!XRE_IsParentProcess()) {
aRv.ThrowNotAllowedError(
"consumeInteractionData() may only be called in the parent "
"process");
return;
}
EventStateManager::ConsumeInteractionData(aInteractions);
}
already_AddRefed<Promise> ChromeUtils::CollectScrollingData(
GlobalObject& aGlobal, ErrorResult& aRv) {
// Creating a JS promise
nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(aGlobal.GetAsSupports());
MOZ_ASSERT(global);
RefPtr<Promise> promise = Promise::Create(global, aRv);
if (aRv.Failed()) {
return nullptr;
}
RefPtr<ScrollingMetrics::ScrollingMetricsPromise> extPromise =
ScrollingMetrics::CollectScrollingMetrics();
extPromise->Then(
GetCurrentSerialEventTarget(), __func__,
[promise](const std::tuple<uint32_t, uint32_t>& aResult) {
InteractionData out = {};
out.mInteractionTimeInMilliseconds = std::get<0>(aResult);
out.mScrollingDistanceInPixels = std::get<1>(aResult);
promise->MaybeResolve(out);
},
[promise](bool aValue) { promise->MaybeReject(NS_ERROR_FAILURE); });
return promise.forget();
}
/* static */
void ChromeUtils::GetFormAutofillConfidences(
GlobalObject& aGlobal, const Sequence<OwningNonNull<Element>>& aElements,
nsTArray<FormAutofillConfidences>& aResults, ErrorResult& aRv) {
FormAutofillNative::GetFormAutofillConfidences(aGlobal, aElements, aResults,
aRv);
}
bool ChromeUtils::IsDarkBackground(GlobalObject&, Element& aElement) {
nsIFrame* f = aElement.GetPrimaryFrame(FlushType::Frames);
if (!f) {
return false;
}
return nsNativeTheme::IsDarkBackground(f);
}
double ChromeUtils::DateNow(GlobalObject&) { return JS_Now() / 1000.0; }
/* static */
void ChromeUtils::EnsureJSOracleStarted(GlobalObject&) {
if (StaticPrefs::browser_opaqueResponseBlocking_javascriptValidator()) {
JSOracleParent::WithJSOracle([](JSOracleParent* aParent) {});
}
}
/* static */
unsigned ChromeUtils::AliveUtilityProcesses(const GlobalObject&) {
const auto& utilityProcessManager =
mozilla::ipc::UtilityProcessManager::GetIfExists();
return utilityProcessManager ? utilityProcessManager->AliveProcesses() : 0;
}
/* static */
void ChromeUtils::GetAllPossibleUtilityActorNames(GlobalObject& aGlobal,
nsTArray<nsCString>& aNames) {
aNames.Clear();
for (size_t i = 0; i < WebIDLUtilityActorNameValues::Count; ++i) {
auto idlName = static_cast<UtilityActorName>(i);
aNames.AppendElement(WebIDLUtilityActorNameValues::GetString(idlName));
}
}
/* static */
bool ChromeUtils::ShouldResistFingerprinting(
GlobalObject& aGlobal, JSRFPTarget aTarget,
const Nullable<uint64_t>& aOverriddenFingerprintingSettings) {
RFPTarget target;
switch (aTarget) {
case JSRFPTarget::RoundWindowSize:
target = RFPTarget::RoundWindowSize;
break;
case JSRFPTarget::SiteSpecificZoom:
target = RFPTarget::SiteSpecificZoom;
break;
default:
MOZ_CRASH("Unhandled JSRFPTarget enum value");
}
Maybe<RFPTarget> overriddenFingerprintingSettings;
if (!aOverriddenFingerprintingSettings.IsNull()) {
overriddenFingerprintingSettings.emplace(
RFPTarget(aOverriddenFingerprintingSettings.Value()));
}
return nsRFPService::IsRFPEnabledFor(target,
overriddenFingerprintingSettings);
}
std::atomic<uint32_t> ChromeUtils::sDevToolsOpenedCount = 0;
/* static */
bool ChromeUtils::IsDevToolsOpened() {
return ChromeUtils::sDevToolsOpenedCount > 0;
}
/* static */
bool ChromeUtils::IsDevToolsOpened(GlobalObject& aGlobal) {
return ChromeUtils::IsDevToolsOpened();
}
/* static */
void ChromeUtils::NotifyDevToolsOpened(GlobalObject& aGlobal) {
ChromeUtils::sDevToolsOpenedCount++;
}
/* static */
void ChromeUtils::NotifyDevToolsClosed(GlobalObject& aGlobal) {
MOZ_ASSERT(ChromeUtils::sDevToolsOpenedCount >= 1);
ChromeUtils::sDevToolsOpenedCount--;
}
} // namespace mozilla::dom
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