bool NPJSObject::invoke(ExecState* exec, JSGlobalObject* globalObject, JSValue function, const NPVariant* arguments, uint32_t argumentCount, NPVariant* result)
{
VM& vm = exec->vm();
auto scope = DECLARE_CATCH_SCOPE(vm);
CallData callData;
CallType callType = getCallData(function, callData);
if (callType == CallType::None)
return false;
// Convert the passed in arguments.
MarkedArgumentBuffer argumentList;
for (uint32_t i = 0; i < argumentCount; ++i)
argumentList.append(m_objectMap->convertNPVariantToJSValue(exec, globalObject, arguments[i]));
JSValue value = JSC::call(exec, function, callType, callData, m_jsObject.get(), argumentList);
// Convert and return the result of the function call.
m_objectMap->convertJSValueToNPVariant(exec, value, *result);
scope.clearException();
return true;
}
JSInternalPromise* JSModuleLoader::importModule(ExecState* exec, JSString* moduleName, const SourceOrigin& referrer)
{
if (Options::dumpModuleLoadingState())
dataLog("Loader [import] ", printableModuleKey(exec, moduleName), "\n");
auto* globalObject = exec->lexicalGlobalObject();
VM& vm = globalObject->vm();
auto scope = DECLARE_CATCH_SCOPE(vm);
if (globalObject->globalObjectMethodTable()->moduleLoaderImportModule)
return globalObject->globalObjectMethodTable()->moduleLoaderImportModule(globalObject, exec, this, moduleName, referrer);
auto* deferred = JSInternalPromiseDeferred::create(exec, globalObject);
auto moduleNameString = moduleName->value(exec);
if (UNLIKELY(scope.exception())) {
JSValue exception = scope.exception()->value();
scope.clearException();
deferred->reject(exec, exception);
return deferred->promise();
}
deferred->reject(exec, createError(exec, makeString("Could not import the module '", moduleNameString, "'.")));
return deferred->promise();
}
JSValue JSWebKitSubtleCrypto::unwrapKey(ExecState& state)
{
VM& vm = state.vm();
auto scope = DECLARE_THROW_SCOPE(vm);
if (state.argumentCount() < 5)
return throwException(&state, scope, createNotEnoughArgumentsError(&state));
auto keyFormat = cryptoKeyFormatFromJSValue(state, scope, state.uncheckedArgument(0));
RETURN_IF_EXCEPTION(scope, { });
auto wrappedKeyData = cryptoOperationDataFromJSValue(state, scope, state.uncheckedArgument(1));
RETURN_IF_EXCEPTION(scope, { });
RefPtr<CryptoKey> unwrappingKey = JSCryptoKey::toWrapped(vm, state.uncheckedArgument(2));
if (!unwrappingKey)
return throwTypeError(&state, scope);
if (!unwrappingKey->allows(CryptoKeyUsageUnwrapKey)) {
wrapped().document()->addConsoleMessage(MessageSource::JS, MessageLevel::Error, ASCIILiteral("Key usages do not include 'unwrapKey'"));
throwNotSupportedError(state, scope);
return jsUndefined();
}
auto unwrapAlgorithm = createAlgorithmFromJSValue(state, scope, state.uncheckedArgument(3));
RETURN_IF_EXCEPTION(scope, { });
auto unwrapAlgorithmParameters = JSCryptoAlgorithmDictionary::createParametersForDecrypt(state, scope, unwrapAlgorithm->identifier(), state.uncheckedArgument(3));
RETURN_IF_EXCEPTION(scope, { });
RefPtr<CryptoAlgorithm> unwrappedKeyAlgorithm;
RefPtr<CryptoAlgorithmParametersDeprecated> unwrappedKeyAlgorithmParameters;
if (!state.uncheckedArgument(4).isNull()) {
unwrappedKeyAlgorithm = createAlgorithmFromJSValue(state, scope, state.uncheckedArgument(4));
RETURN_IF_EXCEPTION(scope, { });
unwrappedKeyAlgorithmParameters = JSCryptoAlgorithmDictionary::createParametersForImportKey(state, scope, unwrappedKeyAlgorithm->identifier(), state.uncheckedArgument(4));
RETURN_IF_EXCEPTION(scope, { });
}
bool extractable = state.argument(5).toBoolean(&state);
RETURN_IF_EXCEPTION(scope, { });
CryptoKeyUsageBitmap keyUsages = 0;
if (state.argumentCount() >= 7) {
keyUsages = cryptoKeyUsagesFromJSValue(state, scope, state.uncheckedArgument(6));
RETURN_IF_EXCEPTION(scope, { });
}
RefPtr<DeferredPromise> wrapper = createDeferredPromise(state, domWindow());
auto promise = wrapper->promise();
Strong<JSDOMGlobalObject> domGlobalObject(state.vm(), globalObject());
auto decryptSuccessCallback = [domGlobalObject, keyFormat, unwrappedKeyAlgorithm, unwrappedKeyAlgorithmParameters, extractable, keyUsages, wrapper](const Vector<uint8_t>& result) mutable {
auto importSuccessCallback = [wrapper](CryptoKey& key) mutable {
wrapper->resolve<IDLInterface<CryptoKey>>(key);
};
auto importFailureCallback = [wrapper]() mutable {
wrapper->reject(); // FIXME: This should reject with an Exception.
};
VM& vm = domGlobalObject->vm();
auto scope = DECLARE_CATCH_SCOPE(vm);
ExecState& state = *domGlobalObject->globalExec();
WebCore::importKey(state, keyFormat, std::make_pair(result.data(), result.size()), unwrappedKeyAlgorithm, unwrappedKeyAlgorithmParameters, extractable, keyUsages, WTFMove(importSuccessCallback), WTFMove(importFailureCallback));
if (UNLIKELY(scope.exception())) {
// 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.
scope.clearException();
wrapper->reject(); // FIXME: This should reject with an Exception.
}
};
auto decryptFailureCallback = [wrapper]() mutable {
wrapper->reject(); // FIXME: This should reject with an Exception.
};
auto result = unwrapAlgorithm->decryptForUnwrapKey(*unwrapAlgorithmParameters, *unwrappingKey, wrappedKeyData, WTFMove(decryptSuccessCallback), WTFMove(decryptFailureCallback));
if (result.hasException()) {
propagateException(state, scope, result.releaseException());
return { };
}
return promise;
}
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;
VM& vm = globalObject->vm();
JSLockHolder lock(vm);
auto scope = DECLARE_CATCH_SCOPE(vm);
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 (UNLIKELY(scope.exception())) {
reportCurrentException(exec);
scope.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.
// FIXME: Should pass the global object associated with the node
setWrapper(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(vm, jsCast<JSNode*>(wrapper())->pushEventHandlerScope(exec, listenerAsFunction->scope()));
}
return jsFunction;
}
void JSEventListener::handleEvent(ScriptExecutionContext* scriptExecutionContext, Event* event)
{
ASSERT(scriptExecutionContext);
if (!scriptExecutionContext || scriptExecutionContext->isJSExecutionForbidden())
return;
VM& vm = scriptExecutionContext->vm();
JSLockHolder lock(vm);
auto scope = DECLARE_CATCH_SCOPE(vm);
// See https://dom.spec.whatwg.org/#dispatching-events spec on calling handleEvent.
// "If this throws an exception, report the exception." It should not propagate the
// exception.
JSObject* jsFunction = this->jsFunction(scriptExecutionContext);
if (!jsFunction)
return;
JSDOMGlobalObject* globalObject = toJSDOMGlobalObject(scriptExecutionContext, *m_isolatedWorld);
if (!globalObject)
return;
if (scriptExecutionContext->isDocument()) {
JSDOMWindow* window = jsCast<JSDOMWindow*>(globalObject);
if (!window->wrapped().isCurrentlyDisplayedInFrame())
return;
if (wasCreatedFromMarkup() && !scriptExecutionContext->contentSecurityPolicy()->allowInlineEventHandlers(sourceURL(), sourcePosition().m_line))
return;
// FIXME: Is this check needed for other contexts?
ScriptController& script = window->wrapped().frame()->script();
if (!script.canExecuteScripts(AboutToExecuteScript) || script.isPaused())
return;
}
ExecState* exec = globalObject->globalExec();
JSValue handleEventFunction = jsFunction;
CallData callData;
CallType callType = getCallData(handleEventFunction, callData);
// If jsFunction is not actually a function, see if it implements the EventListener interface and use that
if (callType == CallType::None) {
handleEventFunction = jsFunction->get(exec, Identifier::fromString(exec, "handleEvent"));
if (UNLIKELY(scope.exception())) {
auto* exception = scope.exception();
scope.clearException();
event->target()->uncaughtExceptionInEventHandler();
reportException(exec, exception);
return;
}
callType = getCallData(handleEventFunction, callData);
}
if (callType != CallType::None) {
Ref<JSEventListener> protectedThis(*this);
MarkedArgumentBuffer args;
args.append(toJS(exec, globalObject, event));
Event* savedEvent = globalObject->currentEvent();
globalObject->setCurrentEvent(event);
VMEntryScope entryScope(vm, vm.entryScope ? vm.entryScope->globalObject() : globalObject);
InspectorInstrumentationCookie cookie = JSMainThreadExecState::instrumentFunctionCall(scriptExecutionContext, callType, callData);
JSValue thisValue = handleEventFunction == jsFunction ? toJS(exec, globalObject, event->currentTarget()) : jsFunction;
NakedPtr<JSC::Exception> exception;
JSValue retval = scriptExecutionContext->isDocument()
? JSMainThreadExecState::profiledCall(exec, JSC::ProfilingReason::Other, handleEventFunction, callType, callData, thisValue, args, exception)
: JSC::profiledCall(exec, JSC::ProfilingReason::Other, handleEventFunction, callType, callData, thisValue, args, exception);
InspectorInstrumentation::didCallFunction(cookie, scriptExecutionContext);
globalObject->setCurrentEvent(savedEvent);
if (is<WorkerGlobalScope>(*scriptExecutionContext)) {
auto scriptController = downcast<WorkerGlobalScope>(*scriptExecutionContext).script();
bool terminatorCausedException = (scope.exception() && isTerminatedExecutionException(scope.exception()));
if (terminatorCausedException || scriptController->isTerminatingExecution())
scriptController->forbidExecution();
}
if (exception) {
event->target()->uncaughtExceptionInEventHandler();
reportException(exec, exception);
} else {
if (!retval.isUndefinedOrNull() && is<BeforeUnloadEvent>(*event))
downcast<BeforeUnloadEvent>(*event).setReturnValue(retval.toWTFString(exec));
if (m_isAttribute) {
if (retval.isFalse())
event->preventDefault();
}
}
}
}