JSValue JSCommandLineAPIHost::getEventListeners(ExecState& state)
{
if (state.argumentCount() < 1)
return jsUndefined();
JSValue value = state.uncheckedArgument(0);
if (!value.isObject() || value.isNull())
return jsUndefined();
Node* node = JSNode::toWrapped(value);
if (!node)
return jsUndefined();
Vector<EventListenerInfo> listenersArray;
wrapped().getEventListenersImpl(node, listenersArray);
JSObject* result = constructEmptyObject(&state);
for (size_t i = 0; i < listenersArray.size(); ++i) {
JSArray* listeners = getJSListenerFunctions(state, &node->document(), listenersArray[i]);
if (!listeners->length())
continue;
AtomicString eventType = listenersArray[i].eventType;
result->putDirect(state.vm(), Identifier::fromString(&state, eventType.impl()), JSValue(listeners));
}
return result;
}
static CryptoKeyUsageBitmap cryptoKeyUsagesFromJSValue(ExecState& state, ThrowScope& scope, JSValue value)
{
if (!isJSArray(value)) {
throwTypeError(&state, scope);
return { };
}
CryptoKeyUsageBitmap result = 0;
JSArray* array = asArray(value);
for (unsigned i = 0; i < array->length(); ++i) {
auto usageString = array->getIndex(&state, i).toWTFString(&state);
RETURN_IF_EXCEPTION(scope, { });
if (usageString == "encrypt")
result |= CryptoKeyUsageEncrypt;
else if (usageString == "decrypt")
result |= CryptoKeyUsageDecrypt;
else if (usageString == "sign")
result |= CryptoKeyUsageSign;
else if (usageString == "verify")
result |= CryptoKeyUsageVerify;
else if (usageString == "deriveKey")
result |= CryptoKeyUsageDeriveKey;
else if (usageString == "deriveBits")
result |= CryptoKeyUsageDeriveBits;
else if (usageString == "wrapKey")
result |= CryptoKeyUsageWrapKey;
else if (usageString == "unwrapKey")
result |= CryptoKeyUsageUnwrapKey;
}
return result;
}
JSValue JSInspectorFrontendHost::showContextMenu(ExecState* execState, const ArgList& args)
{
if (args.size() < 2)
return jsUndefined();
Event* event = toEvent(args.at(0));
JSArray* array = asArray(args.at(1));
Vector<ContextMenuItem*> items;
for (size_t i = 0; i < array->length(); ++i) {
JSObject* item = asObject(array->getIndex(i));
JSValue label = item->get(execState, Identifier(execState, "label"));
JSValue id = item->get(execState, Identifier(execState, "id"));
if (label.isUndefined() || id.isUndefined())
items.append(new ContextMenuItem(SeparatorType, ContextMenuItemTagNoAction, String()));
else {
ContextMenuAction typedId = static_cast<ContextMenuAction>(ContextMenuItemBaseCustomTag + id.toInt32(execState));
items.append(new ContextMenuItem(ActionType, typedId, label.toString(execState)));
}
}
impl()->showContextMenu(event, items);
return jsUndefined();
}
JSValue JSInjectedScriptHost::getEventListeners(ExecState* exec)
{
if (exec->argumentCount() < 1)
return jsUndefined();
JSValue value = exec->argument(0);
if (!value.isObject() || value.isNull())
return jsUndefined();
Node* node = toNode(value);
if (!node)
return jsUndefined();
// This can only happen for orphan DocumentType nodes.
Document* document = node->document();
if (!node->document())
return jsUndefined();
Vector<EventListenerInfo> listenersArray;
impl()->getEventListenersImpl(node, listenersArray);
JSObject* result = constructEmptyObject(exec);
for (size_t i = 0; i < listenersArray.size(); ++i) {
JSArray* listeners = getJSListenerFunctions(exec, document, listenersArray[i]);
if (!listeners->length())
continue;
AtomicString eventType = listenersArray[i].eventType;
result->putDirect(exec->globalData(), Identifier(exec, eventType.impl()), JSValue(listeners));
}
return result;
}
static bool cryptoKeyUsagesFromJSValue(ExecState* exec, JSValue value, CryptoKeyUsage& result)
{
if (!isJSArray(value)) {
throwTypeError(exec);
return false;
}
result = 0;
JSArray* array = asArray(value);
for (size_t i = 0; i < array->length(); ++i) {
JSValue element = array->getIndex(exec, i);
String usageString = element.toString(exec)->value(exec);
if (exec->hadException())
return false;
if (usageString == "encrypt")
result |= CryptoKeyUsageEncrypt;
else if (usageString == "decrypt")
result |= CryptoKeyUsageDecrypt;
else if (usageString == "sign")
result |= CryptoKeyUsageSign;
else if (usageString == "verify")
result |= CryptoKeyUsageVerify;
else if (usageString == "deriveKey")
result |= CryptoKeyUsageDeriveKey;
else if (usageString == "deriveBits")
result |= CryptoKeyUsageDeriveBits;
else if (usageString == "wrapKey")
result |= CryptoKeyUsageWrapKey;
else if (usageString == "unwrapKey")
result |= CryptoKeyUsageUnwrapKey;
}
return true;
}
bool JSArray::getOwnPropertySlot(JSCell* cell, ExecState* exec, PropertyName propertyName, PropertySlot& slot)
{
JSArray* thisObject = jsCast<JSArray*>(cell);
if (propertyName == exec->propertyNames().length) {
slot.setValue(jsNumber(thisObject->length()));
return true;
}
return JSObject::getOwnPropertySlot(thisObject, exec, propertyName, slot);
}
bool JSArray::getOwnPropertyDescriptor(JSObject* object, ExecState* exec, PropertyName propertyName, PropertyDescriptor& descriptor)
{
JSArray* thisObject = jsCast<JSArray*>(object);
if (propertyName == exec->propertyNames().length) {
descriptor.setDescriptor(jsNumber(thisObject->length()), thisObject->isLengthWritable() ? DontDelete | DontEnum : DontDelete | DontEnum | ReadOnly);
return true;
}
return JSObject::getOwnPropertyDescriptor(thisObject, exec, propertyName, descriptor);
}
static RefPtr<InspectorValue> jsToInspectorValue(ExecState* scriptState, JSValue value, int maxDepth)
{
if (!value) {
ASSERT_NOT_REACHED();
return nullptr;
}
if (!maxDepth)
return nullptr;
maxDepth--;
if (value.isNull() || value.isUndefined())
return InspectorValue::null();
if (value.isBoolean())
return InspectorValue::create(value.asBoolean());
if (value.isNumber() && value.isDouble())
return InspectorValue::create(value.asNumber());
if (value.isNumber() && value.isMachineInt())
return InspectorValue::create(static_cast<int>(value.asMachineInt()));
if (value.isString())
return InspectorValue::create(value.getString(scriptState));
if (value.isObject()) {
if (isJSArray(value)) {
Ref<InspectorArray> inspectorArray = InspectorArray::create();
JSArray* array = asArray(value);
unsigned length = array->length();
for (unsigned i = 0; i < length; i++) {
JSValue element = array->getIndex(scriptState, i);
RefPtr<InspectorValue> elementValue = jsToInspectorValue(scriptState, element, maxDepth);
if (!elementValue)
return nullptr;
inspectorArray->pushValue(WTFMove(elementValue));
}
return WTFMove(inspectorArray);
}
Ref<InspectorObject> inspectorObject = InspectorObject::create();
JSObject* object = value.getObject();
PropertyNameArray propertyNames(scriptState, PropertyNameMode::Strings);
object->methodTable()->getOwnPropertyNames(object, scriptState, propertyNames, EnumerationMode());
for (size_t i = 0; i < propertyNames.size(); i++) {
const Identifier& name = propertyNames[i];
JSValue propertyValue = object->get(scriptState, name);
RefPtr<InspectorValue> inspectorValue = jsToInspectorValue(scriptState, propertyValue, maxDepth);
if (!inspectorValue)
return nullptr;
inspectorObject->setValue(name.string(), WTFMove(inspectorValue));
}
return WTFMove(inspectorObject);
}
ASSERT_NOT_REACHED();
return nullptr;
}
bool JSArray::getOwnPropertySlot(JSObject* object, ExecState* exec, PropertyName propertyName, PropertySlot& slot)
{
JSArray* thisObject = jsCast<JSArray*>(object);
if (propertyName == exec->propertyNames().length) {
unsigned attributes = thisObject->isLengthWritable() ? DontDelete | DontEnum : DontDelete | DontEnum | ReadOnly;
slot.setValue(thisObject, attributes, jsNumber(thisObject->length()));
return true;
}
return JSObject::getOwnPropertySlot(thisObject, exec, propertyName, slot);
}
static PassRefPtr<InspectorValue> jsToInspectorValue(ScriptState* scriptState, JSValue value, int maxDepth)
{
if (!value) {
ASSERT_NOT_REACHED();
return 0;
}
if (!maxDepth)
return 0;
maxDepth--;
if (value.isNull() || value.isUndefined())
return InspectorValue::null();
if (value.isBoolean())
return InspectorBasicValue::create(value.asBoolean());
if (value.isNumber())
return InspectorBasicValue::create(value.asNumber());
if (value.isString()) {
String s = value.getString(scriptState);
return InspectorString::create(String(s.characters(), s.length()));
}
if (value.isObject()) {
if (isJSArray(value)) {
RefPtr<InspectorArray> inspectorArray = InspectorArray::create();
JSArray* array = asArray(value);
unsigned length = array->length();
for (unsigned i = 0; i < length; i++) {
// FIXME: What if the array is in sparse mode? https://bugs.webkit.org/show_bug.cgi?id=95610
JSValue element = array->getIndexQuickly(i);
RefPtr<InspectorValue> elementValue = jsToInspectorValue(scriptState, element, maxDepth);
if (!elementValue)
return 0;
inspectorArray->pushValue(elementValue);
}
return inspectorArray;
}
RefPtr<InspectorObject> inspectorObject = InspectorObject::create();
JSObject* object = value.getObject();
PropertyNameArray propertyNames(scriptState);
object->methodTable()->getOwnPropertyNames(object, scriptState, propertyNames, ExcludeDontEnumProperties);
for (size_t i = 0; i < propertyNames.size(); i++) {
const Identifier& name = propertyNames[i];
JSValue propertyValue = object->get(scriptState, name);
RefPtr<InspectorValue> inspectorValue = jsToInspectorValue(scriptState, propertyValue, maxDepth);
if (!inspectorValue)
return 0;
inspectorObject->setValue(String(name.characters(), name.length()), inspectorValue);
}
return inspectorObject;
}
ASSERT_NOT_REACHED();
return 0;
}
void JSCryptoKeySerializationJWK::reconcileUsages(CryptoKeyUsage& suggestedUsages) const
{
CryptoKeyUsage jwkUsages = 0;
JSArray* keyOps;
if (getJSArrayFromJSON(m_exec, m_json.get(), "key_ops", keyOps)) {
for (size_t i = 0; i < keyOps->length(); ++i) {
JSValue jsValue = keyOps->getIndex(m_exec, i);
String operation;
if (!jsValue.getString(m_exec, operation)) {
if (!m_exec->hadException())
throwTypeError(m_exec, "JWK key_ops attribute could not be processed");
return;
}
if (!tryJWKKeyOpsValue(m_exec, jwkUsages, operation, ASCIILiteral("sign"), CryptoKeyUsageSign))
return;
if (!tryJWKKeyOpsValue(m_exec, jwkUsages, operation, ASCIILiteral("verify"), CryptoKeyUsageVerify))
return;
if (!tryJWKKeyOpsValue(m_exec, jwkUsages, operation, ASCIILiteral("encrypt"), CryptoKeyUsageEncrypt))
return;
if (!tryJWKKeyOpsValue(m_exec, jwkUsages, operation, ASCIILiteral("decrypt"), CryptoKeyUsageDecrypt))
return;
if (!tryJWKKeyOpsValue(m_exec, jwkUsages, operation, ASCIILiteral("wrapKey"), CryptoKeyUsageWrapKey))
return;
if (!tryJWKKeyOpsValue(m_exec, jwkUsages, operation, ASCIILiteral("unwrapKey"), CryptoKeyUsageUnwrapKey))
return;
if (!tryJWKKeyOpsValue(m_exec, jwkUsages, operation, ASCIILiteral("deriveKey"), CryptoKeyUsageDeriveKey))
return;
if (!tryJWKKeyOpsValue(m_exec, jwkUsages, operation, ASCIILiteral("deriveBits"), CryptoKeyUsageDeriveBits))
return;
}
} else {
if (m_exec->hadException())
return;
String jwkUseString;
if (!getStringFromJSON(m_exec, m_json.get(), "use", jwkUseString)) {
// We have neither key_ops nor use.
return;
}
if (jwkUseString == "enc")
jwkUsages |= (CryptoKeyUsageEncrypt | CryptoKeyUsageDecrypt | CryptoKeyUsageWrapKey | CryptoKeyUsageUnwrapKey);
else if (jwkUseString == "sig")
jwkUsages |= (CryptoKeyUsageSign | CryptoKeyUsageVerify);
else {
throwTypeError(m_exec, "Unsupported JWK key use value \"" + jwkUseString + "\"");
return;
}
}
suggestedUsages = suggestedUsages & jwkUsages;
}
JSValue RegExpConstructor::getLastParen(ExecState* exec)
{
JSArray* array = m_cachedResult.lastResult(exec, this);
unsigned length = array->length();
if (length > 1) {
JSValue result = JSValue(array).get(exec, length - 1);
ASSERT(result.isString() || result.isUndefined());
if (!result.isUndefined())
return result;
}
return jsEmptyString(exec);
}
JSValue RegExpConstructor::getBackref(ExecState* exec, unsigned i)
{
JSArray* array = m_cachedResult.lastResult(exec, this);
if (i < array->length()) {
JSValue result = JSValue(array).get(exec, i);
ASSERT(result.isString() || result.isUndefined());
if (!result.isUndefined())
return result;
}
return jsEmptyString(exec);
}
static PassRefPtr<InspectorValue> jsToInspectorValue(ScriptState* scriptState, JSValue value)
{
if (!value) {
ASSERT_NOT_REACHED();
return 0;
}
if (value.isNull() || value.isUndefined())
return InspectorValue::null();
if (value.isBoolean())
return InspectorBasicValue::create(value.getBoolean());
if (value.isNumber())
return InspectorBasicValue::create(value.uncheckedGetNumber());
if (value.isString()) {
UString s = value.getString(scriptState);
return InspectorString::create(String(s.characters(), s.length()));
}
if (value.isObject()) {
if (isJSArray(&scriptState->globalData(), value)) {
RefPtr<InspectorArray> inspectorArray = InspectorArray::create();
JSArray* array = asArray(value);
unsigned length = array->length();
for (unsigned i = 0; i < length; i++) {
JSValue element = array->getIndex(i);
RefPtr<InspectorValue> elementValue = jsToInspectorValue(scriptState, element);
if (!elementValue) {
ASSERT_NOT_REACHED();
elementValue = InspectorValue::null();
}
inspectorArray->pushValue(elementValue);
}
return inspectorArray;
}
RefPtr<InspectorObject> inspectorObject = InspectorObject::create();
JSObject* object = value.getObject();
PropertyNameArray propertyNames(scriptState);
object->getOwnPropertyNames(scriptState, propertyNames);
for (size_t i = 0; i < propertyNames.size(); i++) {
const Identifier& name = propertyNames[i];
JSValue propertyValue = object->get(scriptState, name);
RefPtr<InspectorValue> inspectorValue = jsToInspectorValue(scriptState, propertyValue);
if (!inspectorValue) {
ASSERT_NOT_REACHED();
inspectorValue = InspectorValue::null();
}
inspectorObject->setValue(String(name.characters(), name.length()), inspectorValue);
}
return inspectorObject;
}
ASSERT_NOT_REACHED();
return 0;
}
PassRefPtr<DOMStringList> toDOMStringList(ExecState* exec, JSValue value)
{
if (value.inherits(&JSDOMStringList::s_info))
return jsCast<JSDOMStringList*>(asObject(value))->impl();
if (!isJSArray(value))
return 0;
JSArray* array = asArray(value);
RefPtr<DOMStringList> stringList = DOMStringList::create();
for (unsigned i = 0; i < array->length(); ++i)
stringList->append(array->getIndex(exec, i).toString(exec)->value(exec));
return stringList.release();
}
void JSInternals::setUserPreferredLanguages(ExecState* exec, JSValue value)
{
if (!isJSArray(value)) {
throwError(exec, createSyntaxError(exec, "setUserPreferredLanguages: Expected Array"));
return;
}
Vector<String> languages;
JSArray* array = asArray(value);
for (unsigned i = 0; i < array->length(); ++i) {
String language = ustringToString(array->getIndex(i).toString(exec)->value(exec));
languages.append(language);
}
Internals* imp = static_cast<Internals*>(impl());
imp->setUserPreferredLanguages(languages);
}
void JSCanvasRenderingContext2D::setWebkitLineDash(ExecState* exec, JSValue value)
{
if (!isJSArray(value))
return;
Vector<float> dash;
JSArray* valueArray = asArray(value);
for (unsigned i = 0; i < valueArray->length(); ++i) {
float elem = valueArray->getIndex(exec, i).toFloat(exec);
if (elem <= 0 || !std::isfinite(elem))
return;
dash.append(elem);
}
CanvasRenderingContext2D* context = static_cast<CanvasRenderingContext2D*>(impl());
context->setWebkitLineDash(dash);
}
EncodedJSValue JSC_HOST_CALL boundFunctionConstruct(ExecState* exec)
{
JSBoundFunction* boundFunction = jsCast<JSBoundFunction*>(exec->callee());
ASSERT(isJSArray(boundFunction->boundArgs())); // Currently this is true!
JSArray* boundArgs = asArray(boundFunction->boundArgs());
MarkedArgumentBuffer args;
for (unsigned i = 0; i < boundArgs->length(); ++i)
args.append(boundArgs->getIndexQuickly(i));
for (unsigned i = 0; i < exec->argumentCount(); ++i)
args.append(exec->argument(i));
JSObject* targetFunction = boundFunction->targetFunction();
ConstructData constructData;
ConstructType constructType = getConstructData(targetFunction, constructData);
ASSERT(constructType != ConstructTypeNone);
return JSValue::encode(construct(exec, targetFunction, constructType, constructData, args));
}
EncodedJSValue JSC_HOST_CALL boundFunctionCall(ExecState* exec)
{
JSBoundFunction* boundFunction = jsCast<JSBoundFunction*>(exec->jsCallee());
JSArray* boundArgs = boundFunction->boundArgs();
MarkedArgumentBuffer args;
if (boundArgs) {
for (unsigned i = 0; i < boundArgs->length(); ++i)
args.append(boundArgs->getIndexQuickly(i));
}
for (unsigned i = 0; i < exec->argumentCount(); ++i)
args.append(exec->uncheckedArgument(i));
JSObject* targetFunction = boundFunction->targetFunction();
CallData callData;
CallType callType = getCallData(targetFunction, callData);
ASSERT(callType != CallType::None);
return JSValue::encode(call(exec, targetFunction, callType, callData, boundFunction->boundThis(), args));
}
JSValue JSInspectorFrontendHost::showContextMenu(ExecState* exec)
{
if (exec->argumentCount() < 2)
return jsUndefined();
#if ENABLE(CONTEXT_MENUS)
Event* event = toEvent(exec->argument(0));
JSArray* array = asArray(exec->argument(1));
Vector<ContextMenuItem*> items;
for (size_t i = 0; i < array->length(); ++i) {
JSObject* item = asObject(array->getIndex(i));
JSValue label = item->get(exec, Identifier(exec, "label"));
JSValue type = item->get(exec, Identifier(exec, "type"));
JSValue id = item->get(exec, Identifier(exec, "id"));
JSValue enabled = item->get(exec, Identifier(exec, "enabled"));
JSValue checked = item->get(exec, Identifier(exec, "checked"));
if (!type.isString())
continue;
String typeString = ustringToString(type.toString(exec)->value(exec));
if (typeString == "separator") {
items.append(new ContextMenuItem(SeparatorType,
ContextMenuItemCustomTagNoAction,
String()));
} else {
ContextMenuAction typedId = static_cast<ContextMenuAction>(ContextMenuItemBaseCustomTag + id.toInt32(exec));
ContextMenuItem* menuItem = new ContextMenuItem((typeString == "checkbox" ? CheckableActionType : ActionType), typedId, ustringToString(label.toString(exec)->value(exec)));
if (!enabled.isUndefined())
menuItem->setEnabled(enabled.toBoolean(exec));
if (!checked.isUndefined())
menuItem->setChecked(checked.toBoolean(exec));
items.append(menuItem);
}
}
impl()->showContextMenu(event, items);
#endif
return jsUndefined();
}
EncodedJSValue JSC_HOST_CALL JSWebSocketConstructor::constructJSWebSocket(ExecState* exec)
{
JSWebSocketConstructor* jsConstructor = static_cast<JSWebSocketConstructor*>(exec->callee());
ScriptExecutionContext* context = jsConstructor->scriptExecutionContext();
if (!context)
return throwVMError(exec, createReferenceError(exec, "WebSocket constructor associated document is unavailable"));
if (!exec->argumentCount())
return throwVMError(exec, createSyntaxError(exec, "Not enough arguments"));
String urlString = ustringToString(exec->argument(0).toString(exec)->value(exec));
if (exec->hadException())
return throwVMError(exec, createSyntaxError(exec, "wrong URL"));
RefPtr<WebSocket> webSocket = WebSocket::create(context);
ExceptionCode ec = 0;
if (exec->argumentCount() < 2)
webSocket->connect(urlString, ec);
else {
JSValue protocolsValue = exec->argument(1);
if (isJSArray(protocolsValue)) {
Vector<String> protocols;
JSArray* protocolsArray = asArray(protocolsValue);
for (unsigned i = 0; i < protocolsArray->length(); ++i) {
String protocol = ustringToString(protocolsArray->getIndex(i).toString(exec)->value(exec));
if (exec->hadException())
return JSValue::encode(JSValue());
protocols.append(protocol);
}
webSocket->connect(urlString, protocols, ec);
} else {
String protocol = ustringToString(protocolsValue.toString(exec)->value(exec));
if (exec->hadException())
return JSValue::encode(JSValue());
webSocket->connect(urlString, protocol, ec);
}
}
setDOMException(exec, ec);
return JSValue::encode(CREATE_DOM_WRAPPER(exec, jsConstructor->globalObject(), WebSocket, webSocket.get()));
}
static bool cryptoKeyUsagesFromJSValue(ExecState& state, JSValue value, CryptoKeyUsageBitmap& result)
{
VM& vm = state.vm();
auto scope = DECLARE_THROW_SCOPE(vm);
if (!isJSArray(value)) {
throwTypeError(&state, scope);
return false;
}
result = 0;
JSArray* array = asArray(value);
for (size_t i = 0; i < array->length(); ++i) {
JSValue element = array->getIndex(&state, i);
String usageString = element.toString(&state)->value(&state);
RETURN_IF_EXCEPTION(scope, false);
if (usageString == "encrypt")
result |= CryptoKeyUsageEncrypt;
else if (usageString == "decrypt")
result |= CryptoKeyUsageDecrypt;
else if (usageString == "sign")
result |= CryptoKeyUsageSign;
else if (usageString == "verify")
result |= CryptoKeyUsageVerify;
else if (usageString == "deriveKey")
result |= CryptoKeyUsageDeriveKey;
else if (usageString == "deriveBits")
result |= CryptoKeyUsageDeriveBits;
else if (usageString == "wrapKey")
result |= CryptoKeyUsageWrapKey;
else if (usageString == "unwrapKey")
result |= CryptoKeyUsageUnwrapKey;
}
return true;
}
static RefPtr<IDBKey> createIDBKeyFromValue(ExecState* exec, JSValue value, Vector<JSArray*>& stack)
{
if (value.isNumber() && !std::isnan(value.toNumber(exec)))
return IDBKey::createNumber(value.toNumber(exec));
if (value.isString())
return IDBKey::createString(value.toString(exec)->value(exec));
if (value.inherits(DateInstance::info()) && !std::isnan(valueToDate(exec, value)))
return IDBKey::createDate(valueToDate(exec, value));
if (value.isObject()) {
JSObject* object = asObject(value);
if (isJSArray(object) || object->inherits(JSArray::info())) {
JSArray* array = asArray(object);
size_t length = array->length();
if (stack.contains(array))
return nullptr;
if (stack.size() >= maximumDepth)
return nullptr;
stack.append(array);
Vector<RefPtr<IDBKey>> subkeys;
for (size_t i = 0; i < length; i++) {
JSValue item = array->getIndex(exec, i);
RefPtr<IDBKey> subkey = createIDBKeyFromValue(exec, item, stack);
if (!subkey)
subkeys.append(IDBKey::createInvalid());
else
subkeys.append(subkey);
}
stack.removeLast();
return IDBKey::createArray(subkeys);
}
}
return nullptr;
}
// Defined in ES5.1 15.4.5.1
bool JSArray::defineOwnProperty(JSObject* object, ExecState* exec, PropertyName propertyName, const PropertyDescriptor& descriptor, bool throwException)
{
JSArray* array = jsCast<JSArray*>(object);
// 3. If P is "length", then
if (propertyName == exec->propertyNames().length) {
// All paths through length definition call the default [[DefineOwnProperty]], hence:
// from ES5.1 8.12.9 7.a.
if (descriptor.configurablePresent() && descriptor.configurable())
return reject(exec, throwException, "Attempting to change configurable attribute of unconfigurable property.");
// from ES5.1 8.12.9 7.b.
if (descriptor.enumerablePresent() && descriptor.enumerable())
return reject(exec, throwException, "Attempting to change enumerable attribute of unconfigurable property.");
// a. If the [[Value]] field of Desc is absent, then
// a.i. Return the result of calling the default [[DefineOwnProperty]] internal method (8.12.9) on A passing "length", Desc, and Throw as arguments.
if (descriptor.isAccessorDescriptor())
return reject(exec, throwException, "Attempting to change access mechanism for an unconfigurable property.");
// from ES5.1 8.12.9 10.a.
if (!array->isLengthWritable() && descriptor.writablePresent() && descriptor.writable())
return reject(exec, throwException, "Attempting to change writable attribute of unconfigurable property.");
// This descriptor is either just making length read-only, or changing nothing!
if (!descriptor.value()) {
if (descriptor.writablePresent())
array->setLengthWritable(exec, descriptor.writable());
return true;
}
// b. Let newLenDesc be a copy of Desc.
// c. Let newLen be ToUint32(Desc.[[Value]]).
unsigned newLen = descriptor.value().toUInt32(exec);
// d. If newLen is not equal to ToNumber( Desc.[[Value]]), throw a RangeError exception.
if (newLen != descriptor.value().toNumber(exec)) {
exec->vm().throwException(exec, createRangeError(exec, ASCIILiteral("Invalid array length")));
return false;
}
// Based on SameValue check in 8.12.9, this is always okay.
// FIXME: Nothing prevents this from being called on a RuntimeArray, and the length function will always return 0 in that case.
if (newLen == array->length()) {
if (descriptor.writablePresent())
array->setLengthWritable(exec, descriptor.writable());
return true;
}
// e. Set newLenDesc.[[Value] to newLen.
// f. If newLen >= oldLen, then
// f.i. Return the result of calling the default [[DefineOwnProperty]] internal method (8.12.9) on A passing "length", newLenDesc, and Throw as arguments.
// g. Reject if oldLenDesc.[[Writable]] is false.
if (!array->isLengthWritable())
return reject(exec, throwException, "Attempting to change value of a readonly property.");
// h. If newLenDesc.[[Writable]] is absent or has the value true, let newWritable be true.
// i. Else,
// i.i. Need to defer setting the [[Writable]] attribute to false in case any elements cannot be deleted.
// i.ii. Let newWritable be false.
// i.iii. Set newLenDesc.[[Writable] to true.
// j. Let succeeded be the result of calling the default [[DefineOwnProperty]] internal method (8.12.9) on A passing "length", newLenDesc, and Throw as arguments.
// k. If succeeded is false, return false.
// l. While newLen < oldLen repeat,
// l.i. Set oldLen to oldLen – 1.
// l.ii. Let deleteSucceeded be the result of calling the [[Delete]] internal method of A passing ToString(oldLen) and false as arguments.
// l.iii. If deleteSucceeded is false, then
if (!array->setLength(exec, newLen, throwException)) {
// 1. Set newLenDesc.[[Value] to oldLen+1.
// 2. If newWritable is false, set newLenDesc.[[Writable] to false.
// 3. Call the default [[DefineOwnProperty]] internal method (8.12.9) on A passing "length", newLenDesc, and false as arguments.
// 4. Reject.
if (descriptor.writablePresent())
array->setLengthWritable(exec, descriptor.writable());
return false;
}
// m. If newWritable is false, then
// i. Call the default [[DefineOwnProperty]] internal method (8.12.9) on A passing "length",
// Property Descriptor{[[Writable]]: false}, and false as arguments. This call will always
// return true.
if (descriptor.writablePresent())
array->setLengthWritable(exec, descriptor.writable());
// n. Return true.
return true;
}
// 4. Else if P is an array index (15.4), then
// a. Let index be ToUint32(P).
if (Optional<uint32_t> optionalIndex = parseIndex(propertyName)) {
// b. Reject if index >= oldLen and oldLenDesc.[[Writable]] is false.
uint32_t index = optionalIndex.value();
// FIXME: Nothing prevents this from being called on a RuntimeArray, and the length function will always return 0 in that case.
if (index >= array->length() && !array->isLengthWritable())
return reject(exec, throwException, "Attempting to define numeric property on array with non-writable length property.");
// c. Let succeeded be the result of calling the default [[DefineOwnProperty]] internal method (8.12.9) on A passing P, Desc, and false as arguments.
// d. Reject if succeeded is false.
// e. If index >= oldLen
// e.i. Set oldLenDesc.[[Value]] to index + 1.
// e.ii. Call the default [[DefineOwnProperty]] internal method (8.12.9) on A passing "length", oldLenDesc, and false as arguments. This call will always return true.
// f. Return true.
return array->defineOwnIndexedProperty(exec, index, descriptor, throwException);
}
return array->JSObject::defineOwnNonIndexProperty(exec, propertyName, descriptor, throwException);
}
JSValue collectMatches(VM& vm, ExecState* exec, JSString* string, const String& s, RegExpConstructor* constructor, RegExp* regExp, const FixEndFunc& fixEnd)
{
auto scope = DECLARE_THROW_SCOPE(vm);
MatchResult result = constructor->performMatch(vm, regExp, string, s, 0);
if (!result)
return jsNull();
static unsigned maxSizeForDirectPath = 100000;
JSArray* array = constructEmptyArray(exec, nullptr);
if (UNLIKELY(vm.exception()))
return jsUndefined();
auto iterate = [&] () {
size_t end = result.end;
size_t length = end - result.start;
array->push(exec, JSRopeString::createSubstringOfResolved(vm, string, result.start, length));
if (!length)
end = fixEnd(end);
result = constructor->performMatch(vm, regExp, string, s, end);
};
do {
if (array->length() >= maxSizeForDirectPath) {
// First do a throw-away match to see how many matches we'll get.
unsigned matchCount = 0;
MatchResult savedResult = result;
do {
if (array->length() + matchCount >= MAX_STORAGE_VECTOR_LENGTH) {
throwOutOfMemoryError(exec, scope);
return jsUndefined();
}
size_t end = result.end;
matchCount++;
if (result.empty())
end = fixEnd(end);
// Using RegExpConstructor::performMatch() instead of calling RegExp::match()
// directly is a surprising but profitable choice: it means that when we do OOM, we
// will leave the cached result in the state it ought to have had just before the
// OOM! On the other hand, if this loop concludes that the result is small enough,
// then the iterate() loop below will overwrite the cached result anyway.
result = constructor->performMatch(vm, regExp, string, s, end);
} while (result);
// OK, we have a sensible number of matches. Now we can create them for reals.
result = savedResult;
do
iterate();
while (result);
return array;
}
iterate();
} while (result);
return array;
}
EncodedJSValue JSC_HOST_CALL JSBlobConstructor::constructJSBlob(ExecState* exec)
{
JSBlobConstructor* jsConstructor = jsCast<JSBlobConstructor*>(exec->callee());
ScriptExecutionContext* context = jsConstructor->scriptExecutionContext();
if (!context)
return throwVMError(exec, createReferenceError(exec, "Blob constructor associated document is unavailable"));
if (!exec->argumentCount()) {
RefPtr<Blob> blob = Blob::create();
return JSValue::encode(CREATE_DOM_WRAPPER(exec, jsConstructor->globalObject(), Blob, blob.get()));
}
JSValue firstArg = exec->argument(0);
if (!isJSArray(firstArg))
return throwVMError(exec, createTypeError(exec, "First argument of the constructor is not of type Array"));
String type;
String endings = "transparent";
if (exec->argumentCount() > 1) {
JSValue blobPropertyBagValue = exec->argument(1);
if (!blobPropertyBagValue.isObject())
return throwVMError(exec, createTypeError(exec, "Second argument of the constructor is not of type Object"));
// Given the above test, this will always yield an object.
JSObject* blobPropertyBagObject = blobPropertyBagValue.toObject(exec);
// Create the dictionary wrapper from the initializer object.
JSDictionary dictionary(exec, blobPropertyBagObject);
// Attempt to get the endings property and validate it.
bool containsEndings = dictionary.get("endings", endings);
if (exec->hadException())
return JSValue::encode(jsUndefined());
if (containsEndings) {
if (endings != "transparent" && endings != "native")
return throwVMError(exec, createTypeError(exec, "The endings property must be either \"transparent\" or \"native\""));
}
// Attempt to get the type property.
dictionary.get("type", type);
if (exec->hadException())
return JSValue::encode(jsUndefined());
}
ASSERT(endings == "transparent" || endings == "native");
// FIXME: this would be better if the WebKitBlobBuilder were a stack object to avoid the allocation.
RefPtr<WebKitBlobBuilder> blobBuilder = WebKitBlobBuilder::create();
JSArray* array = asArray(firstArg);
unsigned length = array->length();
for (unsigned i = 0; i < length; ++i) {
JSValue item = array->getIndex(i);
#if ENABLE(BLOB)
if (item.inherits(&JSArrayBuffer::s_info))
blobBuilder->append(toArrayBuffer(item));
else
#endif
if (item.inherits(&JSBlob::s_info))
blobBuilder->append(toBlob(item));
else {
String string = ustringToString(item.toString(exec)->value(exec));
if (exec->hadException())
return JSValue::encode(jsUndefined());
blobBuilder->append(string, endings, ASSERT_NO_EXCEPTION);
}
}
RefPtr<Blob> blob = blobBuilder->getBlob(type);
return JSValue::encode(CREATE_DOM_WRAPPER(exec, jsConstructor->globalObject(), Blob, blob.get()));
}
std::unique_ptr<CryptoKeyData> JSCryptoKeySerializationJWK::keyDataRSAComponents() const
{
Vector<uint8_t> modulus;
Vector<uint8_t> exponent;
Vector<uint8_t> privateExponent;
if (!getBigIntegerVectorFromJSON(m_exec, m_json.get(), "n", modulus)) {
if (!m_exec->hadException())
throwTypeError(m_exec, "Required JWK \"n\" member is missing");
return nullptr;
}
if (!keySizeIsValid(modulus.size() * 8)) {
throwTypeError(m_exec, "Key size is not valid for " + m_jwkAlgorithmName);
return nullptr;
}
if (!getBigIntegerVectorFromJSON(m_exec, m_json.get(), "e", exponent)) {
if (!m_exec->hadException())
throwTypeError(m_exec, "Required JWK \"e\" member is missing");
return nullptr;
}
if (!getBigIntegerVectorFromJSON(m_exec, m_json.get(), "d", modulus)) {
if (m_exec->hadException())
return nullptr;
return CryptoKeyDataRSAComponents::createPublic(modulus, exponent);
}
CryptoKeyDataRSAComponents::PrimeInfo firstPrimeInfo;
CryptoKeyDataRSAComponents::PrimeInfo secondPrimeInfo;
Vector<CryptoKeyDataRSAComponents::PrimeInfo> otherPrimeInfos;
if (!getBigIntegerVectorFromJSON(m_exec, m_json.get(), "p", firstPrimeInfo.primeFactor)) {
if (m_exec->hadException())
return nullptr;
return CryptoKeyDataRSAComponents::createPrivate(modulus, exponent, privateExponent);
}
if (!getBigIntegerVectorFromJSON(m_exec, m_json.get(), "dp", firstPrimeInfo.factorCRTExponent)) {
if (m_exec->hadException())
return nullptr;
return CryptoKeyDataRSAComponents::createPrivate(modulus, exponent, privateExponent);
}
if (!getBigIntegerVectorFromJSON(m_exec, m_json.get(), "q", secondPrimeInfo.primeFactor)) {
if (m_exec->hadException())
return nullptr;
return CryptoKeyDataRSAComponents::createPrivate(modulus, exponent, privateExponent);
}
if (!getBigIntegerVectorFromJSON(m_exec, m_json.get(), "dq", secondPrimeInfo.factorCRTExponent)) {
if (m_exec->hadException())
return nullptr;
return CryptoKeyDataRSAComponents::createPrivate(modulus, exponent, privateExponent);
}
if (!getBigIntegerVectorFromJSON(m_exec, m_json.get(), "qi", secondPrimeInfo.factorCRTCoefficient)) {
if (m_exec->hadException())
return nullptr;
return CryptoKeyDataRSAComponents::createPrivate(modulus, exponent, privateExponent);
}
JSArray* otherPrimeInfoJSArray;
if (!getJSArrayFromJSON(m_exec, m_json.get(), "oth", otherPrimeInfoJSArray)) {
if (m_exec->hadException())
return nullptr;
return CryptoKeyDataRSAComponents::createPrivateWithAdditionalData(modulus, exponent, privateExponent, firstPrimeInfo, secondPrimeInfo, otherPrimeInfos);
}
for (size_t i = 0; i < otherPrimeInfoJSArray->length(); ++i) {
CryptoKeyDataRSAComponents::PrimeInfo info;
JSValue element = otherPrimeInfoJSArray->getIndex(m_exec, i);
if (m_exec->hadException())
return nullptr;
if (!element.isObject()) {
throwTypeError(m_exec, "JWK \"oth\" array member is not an object");
return nullptr;
}
if (!getBigIntegerVectorFromJSON(m_exec, asObject(element), "r", info.primeFactor)) {
if (!m_exec->hadException())
throwTypeError(m_exec, "Cannot get prime factor for a prime in \"oth\" dictionary");
return nullptr;
}
if (!getBigIntegerVectorFromJSON(m_exec, asObject(element), "d", info.factorCRTExponent)) {
if (!m_exec->hadException())
throwTypeError(m_exec, "Cannot get factor CRT exponent for a prime in \"oth\" dictionary");
return nullptr;
}
if (!getBigIntegerVectorFromJSON(m_exec, asObject(element), "t", info.factorCRTCoefficient)) {
if (!m_exec->hadException())
throwTypeError(m_exec, "Cannot get factor CRT coefficient for a prime in \"oth\" dictionary");
return nullptr;
}
otherPrimeInfos.append(info);
}
return CryptoKeyDataRSAComponents::createPrivateWithAdditionalData(modulus, exponent, privateExponent, firstPrimeInfo, secondPrimeInfo, otherPrimeInfos);
}
SerializationReturnCode CloneSerializer::serialize(JSValue in)
{
Vector<uint32_t, 16> indexStack;
Vector<uint32_t, 16> lengthStack;
Vector<PropertyNameArray, 16> propertyStack;
Vector<JSObject*, 16> inputObjectStack;
Vector<JSArray*, 16> inputArrayStack;
Vector<WalkerState, 16> stateStack;
WalkerState state = StateUnknown;
JSValue inValue = in;
unsigned tickCount = ticksUntilNextCheck();
while (1) {
switch (state) {
arrayStartState:
case ArrayStartState: {
ASSERT(isArray(inValue));
if (inputObjectStack.size() + inputArrayStack.size() > maximumFilterRecursion)
return StackOverflowError;
JSArray* inArray = asArray(inValue);
unsigned length = inArray->length();
if (!startArray(inArray))
break;
inputArrayStack.append(inArray);
indexStack.append(0);
lengthStack.append(length);
// fallthrough
}
arrayStartVisitMember:
case ArrayStartVisitMember: {
if (!--tickCount) {
if (didTimeOut())
return InterruptedExecutionError;
tickCount = ticksUntilNextCheck();
}
JSArray* array = inputArrayStack.last();
uint32_t index = indexStack.last();
if (index == lengthStack.last()) {
endObject();
inputArrayStack.removeLast();
indexStack.removeLast();
lengthStack.removeLast();
break;
}
if (array->canGetIndex(index))
inValue = array->getIndex(index);
else {
bool hasIndex = false;
inValue = getSparseIndex(array, index, hasIndex);
if (!hasIndex) {
indexStack.last()++;
goto arrayStartVisitMember;
}
}
write(index);
if (dumpIfTerminal(inValue)) {
indexStack.last()++;
goto arrayStartVisitMember;
}
stateStack.append(ArrayEndVisitMember);
goto stateUnknown;
}
case ArrayEndVisitMember: {
indexStack.last()++;
goto arrayStartVisitMember;
}
objectStartState:
case ObjectStartState: {
ASSERT(inValue.isObject());
if (inputObjectStack.size() + inputArrayStack.size() > maximumFilterRecursion)
return StackOverflowError;
JSObject* inObject = asObject(inValue);
if (!startObject(inObject))
break;
inputObjectStack.append(inObject);
indexStack.append(0);
propertyStack.append(PropertyNameArray(m_exec));
inObject->methodTable()->getOwnPropertyNames(inObject, m_exec, propertyStack.last(), ExcludeDontEnumProperties);
// fallthrough
}
objectStartVisitMember:
case ObjectStartVisitMember: {
if (!--tickCount) {
if (didTimeOut())
return InterruptedExecutionError;
tickCount = ticksUntilNextCheck();
}
JSObject* object = inputObjectStack.last();
uint32_t index = indexStack.last();
PropertyNameArray& properties = propertyStack.last();
if (index == properties.size()) {
endObject();
inputObjectStack.removeLast();
indexStack.removeLast();
propertyStack.removeLast();
break;
}
inValue = getProperty(object, properties[index]);
if (shouldTerminate())
return ExistingExceptionError;
if (!inValue) {
// Property was removed during serialisation
indexStack.last()++;
goto objectStartVisitMember;
}
write(properties[index]);
if (shouldTerminate())
return ExistingExceptionError;
if (!dumpIfTerminal(inValue)) {
stateStack.append(ObjectEndVisitMember);
goto stateUnknown;
}
// fallthrough
}
case ObjectEndVisitMember: {
if (shouldTerminate())
return ExistingExceptionError;
indexStack.last()++;
goto objectStartVisitMember;
}
stateUnknown:
case StateUnknown:
if (dumpIfTerminal(inValue))
break;
if (isArray(inValue))
goto arrayStartState;
goto objectStartState;
}
if (stateStack.isEmpty())
break;
state = stateStack.last();
stateStack.removeLast();
if (!--tickCount) {
if (didTimeOut())
return InterruptedExecutionError;
tickCount = ticksUntilNextCheck();
}
}
if (m_failed)
return UnspecifiedError;
return SuccessfullyCompleted;
}