JSValue JSWebKitSubtleCrypto::wrapKey(ExecState& state)
{
VM& vm = state.vm();
auto scope = DECLARE_THROW_SCOPE(vm);
if (state.argumentCount() < 4)
return throwException(&state, scope, createNotEnoughArgumentsError(&state));
auto keyFormat = cryptoKeyFormatFromJSValue(state, scope, state.uncheckedArgument(0));
RETURN_IF_EXCEPTION(scope, { });
RefPtr<CryptoKey> key = JSCryptoKey::toWrapped(vm, state.uncheckedArgument(1));
if (!key)
return throwTypeError(&state, scope);
RefPtr<CryptoKey> wrappingKey = JSCryptoKey::toWrapped(vm, state.uncheckedArgument(2));
if (!key)
return throwTypeError(&state, scope);
if (!wrappingKey->allows(CryptoKeyUsageWrapKey)) {
wrapped().document()->addConsoleMessage(MessageSource::JS, MessageLevel::Error, ASCIILiteral("Key usages do not include 'wrapKey'"));
throwNotSupportedError(state, scope);
return jsUndefined();
}
auto algorithm = createAlgorithmFromJSValue(state, scope, state.uncheckedArgument(3));
RETURN_IF_EXCEPTION(scope, { });
auto parameters = JSCryptoAlgorithmDictionary::createParametersForEncrypt(state, scope, algorithm->identifier(), state.uncheckedArgument(3));
RETURN_IF_EXCEPTION(scope, { });
RefPtr<DeferredPromise> wrapper = createDeferredPromise(state, domWindow());
auto promise = wrapper->promise();
auto exportSuccessCallback = [keyFormat, algorithm, parameters, wrappingKey, wrapper](const Vector<uint8_t>& exportedKeyData) mutable {
auto encryptSuccessCallback = [wrapper](const Vector<uint8_t>& encryptedData) mutable {
fulfillPromiseWithArrayBuffer(wrapper.releaseNonNull(), encryptedData.data(), encryptedData.size());
};
auto encryptFailureCallback = [wrapper]() mutable {
wrapper->reject(); // FIXME: This should reject with an Exception.
};
auto result = algorithm->encryptForWrapKey(*parameters, *wrappingKey, std::make_pair(exportedKeyData.data(), exportedKeyData.size()), WTFMove(encryptSuccessCallback), WTFMove(encryptFailureCallback));
if (result.hasException()) {
// FIXME: Report failure details to console, and possibly to calling script once there is a standardized way to pass errors to WebCrypto promise reject functions.
wrapper->reject(); // FIXME: This should reject with an Exception.
}
};
auto exportFailureCallback = [wrapper]() mutable {
wrapper->reject(); // FIXME: This should reject with an Exception.
};
WebCore::exportKey(state, keyFormat, *key, WTFMove(exportSuccessCallback), WTFMove(exportFailureCallback));
return promise;
}
static RefPtr<CryptoAlgorithm> createAlgorithmFromJSValue(ExecState& state, ThrowScope& scope, JSValue value)
{
auto algorithmIdentifier = JSCryptoAlgorithmDictionary::parseAlgorithmIdentifier(state, scope, value);
RETURN_IF_EXCEPTION(scope, { });
auto result = CryptoAlgorithmRegistry::singleton().create(algorithmIdentifier);
if (!result)
throwNotSupportedError(state, scope);
return result;
}
JSValue JSWebKitSubtleCrypto::verify(ExecState& state)
{
VM& vm = state.vm();
auto scope = DECLARE_THROW_SCOPE(vm);
if (state.argumentCount() < 4)
return throwException(&state, scope, createNotEnoughArgumentsError(&state));
auto algorithm = createAlgorithmFromJSValue(state, scope, state.uncheckedArgument(0));
RETURN_IF_EXCEPTION(scope, { });
auto parameters = JSCryptoAlgorithmDictionary::createParametersForVerify(state, scope, algorithm->identifier(), state.uncheckedArgument(0));
RETURN_IF_EXCEPTION(scope, { });
RefPtr<CryptoKey> key = JSCryptoKey::toWrapped(vm, state.uncheckedArgument(1));
if (!key)
return throwTypeError(&state, scope);
if (!key->allows(CryptoKeyUsageVerify)) {
wrapped().document()->addConsoleMessage(MessageSource::JS, MessageLevel::Error, ASCIILiteral("Key usages do not include 'verify'"));
throwNotSupportedError(state, scope);
return jsUndefined();
}
auto signature = cryptoOperationDataFromJSValue(state, scope, state.uncheckedArgument(2));
RETURN_IF_EXCEPTION(scope, { });
auto data = cryptoOperationDataFromJSValue(state, scope, state.uncheckedArgument(3));
RETURN_IF_EXCEPTION(scope, { });
RefPtr<DeferredPromise> wrapper = createDeferredPromise(state, domWindow());
auto promise = wrapper->promise();
auto successCallback = [wrapper](bool result) mutable {
wrapper->resolve<IDLBoolean>(result);
};
auto failureCallback = [wrapper]() mutable {
wrapper->reject(); // FIXME: This should reject with an Exception.
};
auto result = algorithm->verify(*parameters, *key, signature, data, WTFMove(successCallback), WTFMove(failureCallback));
if (result.hasException()) {
propagateException(state, scope, result.releaseException());
return { };
}
return 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;
}
// https://html.spec.whatwg.org/#dom-customelementsregistry-define
JSValue JSCustomElementsRegistry::define(ExecState& state)
{
if (UNLIKELY(state.argumentCount() < 2))
return state.vm().throwException(&state, createNotEnoughArgumentsError(&state));
AtomicString localName(state.uncheckedArgument(0).toString(&state)->toAtomicString(&state));
if (UNLIKELY(state.hadException()))
return jsUndefined();
JSValue constructorValue = state.uncheckedArgument(1);
if (!constructorValue.isConstructor())
return throwTypeError(&state, ASCIILiteral("The second argument must be a constructor"));
JSObject* constructor = constructorValue.getObject();
// FIXME: Throw a TypeError if constructor doesn't inherit from HTMLElement.
// https://github.com/w3c/webcomponents/issues/541
switch (Document::validateCustomElementName(localName)) {
case CustomElementNameValidationStatus::Valid:
break;
case CustomElementNameValidationStatus::ConflictsWithBuiltinNames:
return throwSyntaxError(&state, ASCIILiteral("Custom element name cannot be same as one of the builtin elements"));
case CustomElementNameValidationStatus::NoHyphen:
return throwSyntaxError(&state, ASCIILiteral("Custom element name must contain a hyphen"));
case CustomElementNameValidationStatus::ContainsUpperCase:
return throwSyntaxError(&state, ASCIILiteral("Custom element name cannot contain an upper case letter"));
}
// FIXME: Check re-entrancy here.
// https://github.com/w3c/webcomponents/issues/545
CustomElementsRegistry& registry = wrapped();
if (registry.findInterface(localName)) {
throwNotSupportedError(state, ASCIILiteral("Cannot define multiple custom elements with the same tag name"));
return jsUndefined();
}
if (registry.containsConstructor(constructor)) {
throwNotSupportedError(state, ASCIILiteral("Cannot define multiple custom elements with the same class"));
return jsUndefined();
}
auto& vm = globalObject()->vm();
JSValue prototypeValue = constructor->get(&state, vm.propertyNames->prototype);
if (state.hadException())
return jsUndefined();
if (!prototypeValue.isObject())
return throwTypeError(&state, ASCIILiteral("Custom element constructor's prototype must be an object"));
JSObject& prototypeObject = *asObject(prototypeValue);
QualifiedName name(nullAtom, localName, HTMLNames::xhtmlNamespaceURI);
auto elementInterface = JSCustomElementInterface::create(name, constructor, globalObject());
auto* connectedCallback = getCustomElementCallback(state, prototypeObject, Identifier::fromString(&vm, "connectedCallback"));
if (state.hadException())
return jsUndefined();
if (connectedCallback)
elementInterface->setConnectedCallback(connectedCallback);
auto* disconnectedCallback = getCustomElementCallback(state, prototypeObject, Identifier::fromString(&vm, "disconnectedCallback"));
if (state.hadException())
return jsUndefined();
if (disconnectedCallback)
elementInterface->setDisconnectedCallback(disconnectedCallback);
// FIXME: Add the support for adoptedCallback.
getCustomElementCallback(state, prototypeObject, Identifier::fromString(&vm, "adoptedCallback"));
if (state.hadException())
return jsUndefined();
auto* attributeChangedCallback = getCustomElementCallback(state, prototypeObject, Identifier::fromString(&vm, "attributeChangedCallback"));
if (state.hadException())
return jsUndefined();
if (attributeChangedCallback) {
auto value = convertOptional<Vector<String>>(state, constructor->get(&state, Identifier::fromString(&state, "observedAttributes")));
if (state.hadException())
return jsUndefined();
if (value)
elementInterface->setAttributeChangedCallback(attributeChangedCallback, *value);
}
PrivateName uniquePrivateName;
globalObject()->putDirect(vm, uniquePrivateName, constructor);
registry.addElementDefinition(WTFMove(elementInterface));
// FIXME: 17. Let map be registry's upgrade candidates map.
// FIXME: 18. Upgrade a newly-defined element given map and definition.
// FIXME: 19. Resolve whenDefined promise.
return jsUndefined();
}