bool JSValueIsEqual(JSContextRef ctx, JSValueRef a, JSValueRef b, JSValueRef* exception)
{
if (!ctx) {
ASSERT_NOT_REACHED();
return false;
}
ExecState* exec = toJS(ctx);
JSLockHolder locker(exec);
JSValue jsA = toJS(exec, a);
JSValue jsB = toJS(exec, b);
bool result = JSValue::equal(exec, jsA, jsB); // false if an exception is thrown
if (exec->hadException()) {
JSValue exceptionValue = exec->exception();
if (exception)
*exception = toRef(exec, exceptionValue);
exec->clearException();
#if ENABLE(REMOTE_INSPECTOR)
exec->vmEntryGlobalObject()->inspectorController().reportAPIException(exec, exceptionValue);
#endif
}
return result;
}
EXPORT
JSValueRef JSObjectCallAsFunction(JSContextRef ctx, JSObjectRef object, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
{
JSLock lock;
ExecState* exec = toJS(ctx);
JSObject* jsObject = toJS(object);
JSObject* jsThisObject = toJS(thisObject);
if (!jsThisObject)
jsThisObject = exec->dynamicInterpreter()->globalObject();
List argList;
for (size_t i = 0; i < argumentCount; i++)
argList.append(toJS(arguments[i]));
JSValueRef result = toRef(jsObject->call(exec, jsThisObject, argList)); // returns NULL if object->implementsCall() is false
if (exec->hadException()) {
if (exception)
*exception = toRef(exec->exception());
exec->clearException();
result = 0;
}
return result;
}
JSObjectRef JSObjectMakeFunction(JSContextRef ctx, JSStringRef name, unsigned parameterCount, const JSStringRef parameterNames[], JSStringRef body, JSStringRef sourceURL, int startingLineNumber, JSValueRef* exception)
{
JSLock lock;
ExecState* exec = toJS(ctx);
UString::Rep* bodyRep = toJS(body);
UString::Rep* sourceURLRep = sourceURL ? toJS(sourceURL) : &UString::Rep::null;
Identifier nameID = name ? Identifier(toJS(name)) : Identifier("anonymous");
List args;
for (unsigned i = 0; i < parameterCount; i++)
args.append(jsString(UString(toJS(parameterNames[i]))));
args.append(jsString(UString(bodyRep)));
JSObject* result = exec->dynamicInterpreter()->builtinFunction()->construct(exec, args, nameID, UString(sourceURLRep), startingLineNumber);
if (exec->hadException()) {
if (exception)
*exception = toRef(exec->exception());
exec->clearException();
result = 0;
}
return toRef(result);
}
JSValue JSSubtleCrypto::unwrapKey(ExecState* exec)
{
if (exec->argumentCount() < 5)
return exec->vm().throwException(exec, createNotEnoughArgumentsError(exec));
CryptoKeyFormat keyFormat;
if (!cryptoKeyFormatFromJSValue(exec, exec->argument(0), keyFormat)) {
ASSERT(exec->hadException());
return jsUndefined();
}
CryptoOperationData wrappedKeyData;
if (!cryptoOperationDataFromJSValue(exec, exec->uncheckedArgument(1), wrappedKeyData)) {
ASSERT(exec->hadException());
return jsUndefined();
}
RefPtr<CryptoKey> unwrappingKey = JSCryptoKey::toWrapped(exec->uncheckedArgument(2));
if (!unwrappingKey)
return throwTypeError(exec);
if (!unwrappingKey->allows(CryptoKeyUsageUnwrapKey)) {
m_impl->document()->addConsoleMessage(MessageSource::JS, MessageLevel::Error, ASCIILiteral("Key usages do not include 'unwrapKey'"));
setDOMException(exec, NOT_SUPPORTED_ERR);
return jsUndefined();
}
std::unique_ptr<CryptoAlgorithm> unwrapAlgorithm;
std::unique_ptr<CryptoAlgorithmParameters> unwrapAlgorithmParameters;
unwrapAlgorithm = createAlgorithmFromJSValue(exec, exec->uncheckedArgument(3));
if (!unwrapAlgorithm) {
ASSERT(exec->hadException());
return jsUndefined();
}
unwrapAlgorithmParameters = JSCryptoAlgorithmDictionary::createParametersForDecrypt(exec, unwrapAlgorithm->identifier(), exec->uncheckedArgument(3));
if (!unwrapAlgorithmParameters) {
ASSERT(exec->hadException());
return jsUndefined();
}
std::unique_ptr<CryptoAlgorithm> unwrappedKeyAlgorithm;
std::unique_ptr<CryptoAlgorithmParameters> unwrappedKeyAlgorithmParameters;
if (!exec->uncheckedArgument(4).isNull()) {
unwrappedKeyAlgorithm = createAlgorithmFromJSValue(exec, exec->uncheckedArgument(4));
if (!unwrappedKeyAlgorithm) {
ASSERT(exec->hadException());
return jsUndefined();
}
unwrappedKeyAlgorithmParameters = JSCryptoAlgorithmDictionary::createParametersForImportKey(exec, unwrappedKeyAlgorithm->identifier(), exec->uncheckedArgument(4));
if (!unwrappedKeyAlgorithmParameters) {
ASSERT(exec->hadException());
return jsUndefined();
}
}
bool extractable = false;
if (exec->argumentCount() >= 6) {
extractable = exec->uncheckedArgument(5).toBoolean(exec);
if (exec->hadException())
return jsUndefined();
}
CryptoKeyUsage keyUsages = 0;
if (exec->argumentCount() >= 7) {
if (!cryptoKeyUsagesFromJSValue(exec, exec->argument(6), keyUsages)) {
ASSERT(exec->hadException());
return jsUndefined();
}
}
JSPromiseDeferred* promiseDeferred = JSPromiseDeferred::create(exec, globalObject());
DeferredWrapper wrapper(exec, globalObject(), promiseDeferred);
Strong<JSDOMGlobalObject> domGlobalObject(exec->vm(), globalObject());
CryptoAlgorithm* unwrappedKeyAlgorithmPtr = unwrappedKeyAlgorithm.release();
CryptoAlgorithmParameters* unwrappedKeyAlgorithmParametersPtr = unwrappedKeyAlgorithmParameters.release();
auto decryptSuccessCallback = [domGlobalObject, keyFormat, unwrappedKeyAlgorithmPtr, unwrappedKeyAlgorithmParametersPtr, extractable, keyUsages, wrapper](const Vector<uint8_t>& result) mutable {
auto importSuccessCallback = [wrapper](CryptoKey& key) mutable {
wrapper.resolve(&key);
};
auto importFailureCallback = [wrapper]() mutable {
wrapper.reject(nullptr);
};
ExecState* exec = domGlobalObject->globalExec();
WebCore::importKey(exec, keyFormat, std::make_pair(result.data(), result.size()), std::unique_ptr<CryptoAlgorithm>(unwrappedKeyAlgorithmPtr), std::unique_ptr<CryptoAlgorithmParameters>(unwrappedKeyAlgorithmParametersPtr), extractable, keyUsages, WTF::move(importSuccessCallback), WTF::move(importFailureCallback));
if (exec->hadException()) {
// FIXME: Report exception details to console, and possibly to calling script once there is a standardized way to pass errors to WebCrypto promise reject functions.
exec->clearException();
importFailureCallback();
}
};
auto decryptFailureCallback = [wrapper, unwrappedKeyAlgorithmPtr, unwrappedKeyAlgorithmParametersPtr]() mutable {
delete unwrappedKeyAlgorithmPtr;
delete unwrappedKeyAlgorithmParametersPtr;
wrapper.reject(nullptr);
};
ExceptionCode ec = 0;
unwrapAlgorithm->decryptForUnwrapKey(*unwrapAlgorithmParameters, *unwrappingKey, wrappedKeyData, WTF::move(decryptSuccessCallback), WTF::move(decryptFailureCallback), ec);
if (ec) {
delete unwrappedKeyAlgorithmPtr;
delete unwrappedKeyAlgorithmParametersPtr;
setDOMException(exec, ec);
return jsUndefined();
}
return promiseDeferred->promise();
}
void JSLazyEventListener::parseCode(ScriptExecutionContext* executionContext) const
{
ASSERT(executionContext);
ASSERT(executionContext->isDocument());
if (!executionContext)
return;
if (m_parsed)
return;
Frame* frame = static_cast<Document*>(executionContext)->frame();
if (!frame)
return;
ScriptController* scriptController = frame->script();
if (!scriptController->isEnabled())
return;
JSDOMGlobalObject* globalObject = toJSDOMGlobalObject(executionContext);
if (!globalObject)
return;
// Ensure that 'node' has a JavaScript wrapper to mark the event listener we're creating.
if (m_originalNode) {
JSLock lock(SilenceAssertionsOnly);
// FIXME: Should pass the global object associated with the node
toJS(globalObject->globalExec(), globalObject, m_originalNode);
}
if (executionContext->isDocument()) {
JSDOMWindow* window = static_cast<JSDOMWindow*>(globalObject);
Frame* frame = window->impl()->frame();
if (!frame)
return;
// FIXME: Is this check needed for non-Document contexts?
ScriptController* script = frame->script();
if (!script->isEnabled() || script->isPaused())
return;
}
m_parsed = true;
ExecState* exec = globalObject->globalExec();
MarkedArgumentBuffer args;
args.append(jsNontrivialString(exec, m_eventParameterName));
args.append(jsString(exec, m_code));
m_jsFunction = constructFunction(exec, args, Identifier(exec, m_functionName), m_sourceURL, m_lineNumber); // FIXME: is globalExec ok?
JSFunction* listenerAsFunction = static_cast<JSFunction*>(m_jsFunction);
if (exec->hadException()) {
exec->clearException();
// failed to parse, so let's just make this listener a no-op
m_jsFunction = 0;
} else if (m_originalNode) {
// Add the event's home element to the scope
// (and the document, and the form - see JSHTMLElement::eventHandlerScope)
ScopeChain scope = listenerAsFunction->scope();
JSValue thisObj = toJS(exec, globalObject, m_originalNode);
if (thisObj.isObject()) {
static_cast<JSNode*>(asObject(thisObj))->pushEventHandlerScope(exec, scope);
listenerAsFunction->setScope(scope);
}
}
// Since we only parse once, there's no need to keep data used for parsing around anymore.
m_functionName = String();
m_code = String();
m_eventParameterName = String();
m_sourceURL = String();
}
JSObject* JSLazyEventListener::initializeJSFunction(ScriptExecutionContext* executionContext) const
{
ASSERT(is<Document>(executionContext));
if (!executionContext)
return nullptr;
ASSERT(!m_code.isNull());
ASSERT(!m_eventParameterName.isNull());
if (m_code.isNull() || m_eventParameterName.isNull())
return nullptr;
Document& document = downcast<Document>(*executionContext);
if (!document.frame())
return nullptr;
if (!document.contentSecurityPolicy()->allowInlineEventHandlers(m_sourceURL, m_sourcePosition.m_line))
return nullptr;
ScriptController& script = document.frame()->script();
if (!script.canExecuteScripts(AboutToExecuteScript) || script.isPaused())
return nullptr;
JSDOMGlobalObject* globalObject = toJSDOMGlobalObject(executionContext, isolatedWorld());
if (!globalObject)
return nullptr;
ExecState* exec = globalObject->globalExec();
MarkedArgumentBuffer args;
args.append(jsNontrivialString(exec, m_eventParameterName));
args.append(jsStringWithCache(exec, m_code));
// We want all errors to refer back to the line on which our attribute was
// declared, regardless of any newlines in our JavaScript source text.
int overrideLineNumber = m_sourcePosition.m_line.oneBasedInt();
JSObject* jsFunction = constructFunctionSkippingEvalEnabledCheck(
exec, exec->lexicalGlobalObject(), args, Identifier::fromString(exec, m_functionName),
m_sourceURL, m_sourcePosition, overrideLineNumber);
if (exec->hadException()) {
reportCurrentException(exec);
exec->clearException();
return nullptr;
}
JSFunction* listenerAsFunction = jsCast<JSFunction*>(jsFunction);
if (m_originalNode) {
if (!wrapper()) {
// Ensure that 'node' has a JavaScript wrapper to mark the event listener we're creating.
JSLockHolder lock(exec);
// FIXME: Should pass the global object associated with the node
setWrapper(exec->vm(), asObject(toJS(exec, globalObject, *m_originalNode)));
}
// Add the event's home element to the scope
// (and the document, and the form - see JSHTMLElement::eventHandlerScope)
listenerAsFunction->setScope(exec->vm(), jsCast<JSNode*>(wrapper())->pushEventHandlerScope(exec, listenerAsFunction->scope()));
}
return jsFunction;
}
JSObject* JSLazyEventListener::initializeJSFunction(ScriptExecutionContext* executionContext) const
{
ASSERT(executionContext);
ASSERT(executionContext->isDocument());
if (!executionContext)
return 0;
Frame* frame = static_cast<Document*>(executionContext)->frame();
if (!frame)
return 0;
ScriptController* scriptController = frame->script();
if (!scriptController->canExecuteScripts(AboutToExecuteScript))
return 0;
JSDOMGlobalObject* globalObject = toJSDOMGlobalObject(executionContext, isolatedWorld());
if (!globalObject)
return 0;
if (executionContext->isDocument()) {
JSDOMWindow* window = static_cast<JSDOMWindow*>(globalObject);
Frame* frame = window->impl()->frame();
if (!frame)
return 0;
// FIXME: Is this check needed for non-Document contexts?
ScriptController* script = frame->script();
if (!script->canExecuteScripts(AboutToExecuteScript) || script->isPaused())
return 0;
}
ExecState* exec = globalObject->globalExec();
MarkedArgumentBuffer args;
args.append(jsNontrivialString(exec, stringToUString(m_eventParameterName)));
args.append(jsString(exec, m_code));
JSObject* jsFunction = constructFunction(exec, args, Identifier(exec, stringToUString(m_functionName)), stringToUString(m_sourceURL), m_lineNumber); // FIXME: is globalExec ok?
if (exec->hadException()) {
exec->clearException();
return 0;
}
JSFunction* listenerAsFunction = static_cast<JSFunction*>(jsFunction);
if (m_originalNode) {
if (!wrapper()) {
// Ensure that 'node' has a JavaScript wrapper to mark the event listener we're creating.
JSLock lock(SilenceAssertionsOnly);
// FIXME: Should pass the global object associated with the node
setWrapper(asObject(toJS(globalObject->globalExec(), globalObject, m_originalNode)));
}
// Add the event's home element to the scope
// (and the document, and the form - see JSHTMLElement::eventHandlerScope)
ScopeChain scope = listenerAsFunction->scope();
static_cast<JSNode*>(wrapper())->pushEventHandlerScope(exec, scope);
listenerAsFunction->setScope(scope);
}
// Since we only parse once, there's no need to keep data used for parsing around anymore.
m_functionName = String();
m_code = String();
m_eventParameterName = String();
m_sourceURL = String();
return jsFunction;
}
RefPtr<IDBRequest> IDBObjectStore::putOrAdd(ExecState& state, JSValue value, RefPtr<IDBKey> key, IndexedDB::ObjectStoreOverwriteMode overwriteMode, InlineKeyCheck inlineKeyCheck, ExceptionCodeWithMessage& ec)
{
LOG(IndexedDB, "IDBObjectStore::putOrAdd");
ASSERT(currentThread() == m_transaction->database().originThreadID());
auto context = scriptExecutionContextFromExecState(&state);
if (!context) {
ec.code = IDBDatabaseException::UnknownError;
ec.message = ASCIILiteral("Unable to store record in object store because it does not have a valid script execution context");
return nullptr;
}
// The IDB spec for several IDBObjectStore methods states that transaction related exceptions should fire before
// the exception for an object store being deleted.
// However, a handful of W3C IDB tests expect the deleted exception even though the transaction inactive exception also applies.
// Additionally, Chrome and Edge agree with the test, as does Legacy IDB in WebKit.
// Until this is sorted out, we'll agree with the test and the majority share browsers.
if (m_deleted) {
ec.code = IDBDatabaseException::InvalidStateError;
ec.message = ASCIILiteral("Failed to store record in an IDBObjectStore: The object store has been deleted.");
return nullptr;
}
if (!m_transaction->isActive()) {
ec.code = IDBDatabaseException::TransactionInactiveError;
ec.message = ASCIILiteral("Failed to store record in an IDBObjectStore: The transaction is inactive or finished.");
return nullptr;
}
if (m_transaction->isReadOnly()) {
ec.code = IDBDatabaseException::ReadOnlyError;
ec.message = ASCIILiteral("Failed to store record in an IDBObjectStore: The transaction is read-only.");
return nullptr;
}
RefPtr<SerializedScriptValue> serializedValue = SerializedScriptValue::create(&state, value, nullptr, nullptr);
if (state.hadException()) {
// Clear the DOM exception from the serializer so we can give a more targeted exception.
state.clearException();
ec.code = IDBDatabaseException::DataCloneError;
ec.message = ASCIILiteral("Failed to store record in an IDBObjectStore: An object could not be cloned.");
return nullptr;
}
bool privateBrowsingEnabled = false;
if (context->isDocument()) {
if (auto* page = static_cast<Document*>(context)->page())
privateBrowsingEnabled = page->sessionID().isEphemeral();
}
if (serializedValue->hasBlobURLs() && privateBrowsingEnabled) {
// https://bugs.webkit.org/show_bug.cgi?id=156347 - Support Blobs in private browsing.
ec.code = IDBDatabaseException::DataCloneError;
ec.message = ASCIILiteral("Failed to store record in an IDBObjectStore: BlobURLs are not yet supported.");
return nullptr;
}
if (key && !key->isValid()) {
ec.code = IDBDatabaseException::DataError;
ec.message = ASCIILiteral("Failed to store record in an IDBObjectStore: The parameter is not a valid key.");
return nullptr;
}
bool usesInlineKeys = !m_info.keyPath().isNull();
bool usesKeyGenerator = autoIncrement();
if (usesInlineKeys && inlineKeyCheck == InlineKeyCheck::Perform) {
if (key) {
ec.code = IDBDatabaseException::DataError;
ec.message = ASCIILiteral("Failed to store record in an IDBObjectStore: The object store uses in-line keys and the key parameter was provided.");
return nullptr;
}
RefPtr<IDBKey> keyPathKey = maybeCreateIDBKeyFromScriptValueAndKeyPath(state, value, m_info.keyPath());
if (keyPathKey && !keyPathKey->isValid()) {
ec.code = IDBDatabaseException::DataError;
ec.message = ASCIILiteral("Failed to store record in an IDBObjectStore: Evaluating the object store's key path yielded a value that is not a valid key.");
return nullptr;
}
if (!keyPathKey) {
if (usesKeyGenerator) {
if (!canInjectIDBKeyIntoScriptValue(state, value, m_info.keyPath())) {
ec.code = IDBDatabaseException::DataError;
return nullptr;
}
} else {
ec.code = IDBDatabaseException::DataError;
ec.message = ASCIILiteral("Failed to store record in an IDBObjectStore: Evaluating the object store's key path did not yield a value.");
return nullptr;
}
}
if (keyPathKey) {
ASSERT(!key);
key = keyPathKey;
}
} else if (!usesKeyGenerator && !key) {
ec.code = IDBDatabaseException::DataError;
ec.message = ASCIILiteral("Failed to store record in an IDBObjectStore: The object store uses out-of-line keys and has no key generator and the key parameter was not provided.");
return nullptr;
}
return m_transaction->requestPutOrAdd(*context, *this, key.get(), *serializedValue, overwriteMode);
}
void JSAbstractEventListener::handleEvent(Event* ele, bool isWindowEvent)
{
#ifdef KJS_DEBUGGER
if (KJSDebugWin::instance() && KJSDebugWin::instance()->inSession())
return;
#endif
Event *event = ele;
JSObject* listener = listenerObj();
if (!listener)
return;
Window* window = windowObj();
Frame *frame = window->frame();
if (!frame)
return;
KJSProxy* proxy = frame->jScript();
if (!proxy)
return;
JSLock lock;
ScriptInterpreter* interpreter = proxy->interpreter();
ExecState* exec = interpreter->globalExec();
JSValue* handleEventFuncValue = listener->get(exec, "handleEvent");
JSObject* handleEventFunc = 0;
if (handleEventFuncValue->isObject()) {
handleEventFunc = static_cast<JSObject*>(handleEventFuncValue);
if (!handleEventFunc->implementsCall())
handleEventFunc = 0;
}
if (handleEventFunc || listener->implementsCall()) {
ref();
List args;
args.append(toJS(exec, event));
// Set the event we're handling in the Window object
window->setCurrentEvent(event);
// ... and in the interpreter
interpreter->setCurrentEvent(event);
JSValue* retval;
if (handleEventFunc) {
interpreter->startTimeoutCheck();
retval = handleEventFunc->call(exec, listener, args);
} else {
JSObject* thisObj;
if (isWindowEvent)
thisObj = window;
else
thisObj = static_cast<JSObject*>(toJS(exec, event->currentTarget()));
interpreter->startTimeoutCheck();
retval = listener->call(exec, thisObj, args);
}
interpreter->stopTimeoutCheck();
window->setCurrentEvent(0);
interpreter->setCurrentEvent(0);
if (exec->hadException()) {
JSObject* exception = exec->exception()->toObject(exec);
String message = exception->get(exec, messagePropertyName)->toString(exec);
int lineNumber = exception->get(exec, "line")->toInt32(exec);
String sourceURL = exception->get(exec, "sourceURL")->toString(exec);
if (Interpreter::shouldPrintExceptions())
printf("(event handler):%s\n", message.deprecatedString().utf8().data());
frame->addMessageToConsole(message, lineNumber, sourceURL);
exec->clearException();
} else {
if (!retval->isUndefinedOrNull() && event->storesResultAsString())
event->storeResult(retval->toString(exec));
if (html) {
bool retvalbool;
if (retval->getBoolean(retvalbool) && !retvalbool)
event->preventDefault();
}
}
Document::updateDocumentsRendering();
deref();
}
}
void JSLazyEventListener::parseCode() const
{
if (!parsed) {
KHTMLPart *part = qobject_cast<KHTMLPart*>(static_cast<Window*>(win.get())->part());
KJSProxy *proxy = 0L;
if (part)
proxy = part->jScript();
if (proxy) {
KJS::ScriptInterpreter *interpreter = static_cast<KJS::ScriptInterpreter *>(proxy->interpreter());
ExecState *exec = interpreter->globalExec();
//KJS::Constructor constr(KJS::Global::current().get("Function").imp());
KJS::FunctionObjectImp *constr = static_cast<KJS::FunctionObjectImp*>(interpreter->builtinFunction());
KJS::List args;
if (svg)
args.append(jsString("evt"));
else
args.append(jsString("event"));
args.append(jsString(code));
listener = constr->construct(exec, args,
Identifier(UString(name)), url, lineNum); // ### is globalExec ok ?
compareListenerImp = listener;
if (exec->hadException()) {
exec->clearException();
// failed to parse, so let's just make this listener a no-op
listener = 0;
} else if (!listener->inherits(&DeclaredFunctionImp::info)) {
listener = 0;// Error creating function
} else {
DeclaredFunctionImp *declFunc = static_cast<DeclaredFunctionImp*>(listener.get());
if (originalNode)
{
// Add the event's home element to the scope
// (and the document, and the form - see KJS::HTMLElement::eventHandlerScope)
ScopeChain scope = declFunc->scope();
JSObject *thisObj = getDOMNode(exec, originalNode)->getObject();
if (thisObj) {
static_cast<DOMNode*>(thisObj)->pushEventHandlerScope(exec, scope);
declFunc->setScope(scope);
}
}
}
}
// no more need to keep the unparsed code around
code.clear();
if (listener) {
static_cast<Window*>(win.get())->jsEventListeners.insert(QPair<void*, bool>(compareListenerImp.get(), true),
(KJS::JSEventListener *)(this));
}
parsed = true;
}
}
