bool
js::SetPropertyIgnoringNamedGetter(JSContext* cx, const BaseProxyHandler* handler,
HandleObject proxy, HandleObject receiver,
HandleId id, MutableHandle<PropertyDescriptor> desc,
bool descIsOwn, bool strict, MutableHandleValue vp)
{
/* The control-flow here differs from ::get() because of the fall-through case below. */
MOZ_ASSERT_IF(descIsOwn, desc.object());
if (desc.object()) {
MOZ_ASSERT(desc.getter() != JS_PropertyStub);
MOZ_ASSERT(desc.setter() != JS_StrictPropertyStub);
// Check for read-only properties.
if (desc.isReadonly()) {
if (strict)
return Throw(cx, id, descIsOwn ? JSMSG_READ_ONLY : JSMSG_CANT_REDEFINE_PROP);
return true;
}
if (desc.hasSetterObject() || desc.setter()) {
if (!CallSetter(cx, receiver, id, desc.setter(), desc.attributes(), strict, vp))
return false;
if (!proxy->is<ProxyObject>() || proxy->as<ProxyObject>().handler() != handler)
return true;
if (desc.isShared())
return true;
}
desc.value().set(vp.get());
if (descIsOwn) {
MOZ_ASSERT(desc.object() == proxy);
return handler->defineProperty(cx, proxy, id, desc);
}
return DefineProperty(cx, receiver, id, desc.value(),
desc.getter(), desc.setter(), desc.attributes());
}
desc.object().set(receiver);
desc.value().set(vp.get());
desc.setAttributes(JSPROP_ENUMERATE);
desc.setGetter(nullptr);
desc.setSetter(nullptr); // Pick up the class getter/setter.
return DefineProperty(cx, receiver, id, desc.value(), nullptr, nullptr, JSPROP_ENUMERATE);
}
bool
DirectProxyHandler::defineProperty(JSContext *cx, HandleObject proxy, HandleId id,
MutableHandle<PropertyDescriptor> desc) const
{
assertEnteredPolicy(cx, proxy, id, SET);
RootedObject target(cx, proxy->as<ProxyObject>().target());
RootedValue v(cx, desc.value());
return CheckDefineProperty(cx, target, id, v, desc.attributes(), desc.getter(), desc.setter()) &&
JS_DefinePropertyById(cx, target, id, v, desc.attributes(), desc.getter(), desc.setter());
}
bool
SecurityWrapper<Base>::defineProperty(JSContext *cx, HandleObject wrapper,
HandleId id, MutableHandle<PropertyDescriptor> desc)
{
if (desc.getter() || desc.setter()) {
JSString *str = IdToString(cx, id);
const jschar *prop = str ? str->getCharsZ(cx) : nullptr;
JS_ReportErrorNumberUC(cx, js_GetErrorMessage, nullptr,
JSMSG_ACCESSOR_DEF_DENIED, prop);
return false;
}
return Base::defineProperty(cx, wrapper, id, desc);
}
bool
JSCompartment::wrap(JSContext *cx, MutableHandle<PropertyDescriptor> desc)
{
if (!wrap(cx, desc.object()))
return false;
if (desc.hasGetterObject()) {
if (!wrap(cx, &desc.getter()))
return false;
}
if (desc.hasSetterObject()) {
if (!wrap(cx, &desc.setter()))
return false;
}
return wrap(cx, desc.value());
}
bool
SecurityWrapper<Base>::defineProperty(JSContext *cx, HandleObject wrapper,
HandleId id, MutableHandle<PropertyDescriptor> desc) const
{
if (desc.getter() || desc.setter()) {
JSString *str = IdToString(cx, id);
AutoStableStringChars chars(cx);
const jschar *prop = nullptr;
if (str->ensureFlat(cx) && chars.initTwoByte(cx, str))
prop = chars.twoByteChars();
JS_ReportErrorNumberUC(cx, js_GetErrorMessage, nullptr,
JSMSG_ACCESSOR_DEF_DENIED, prop);
return false;
}
return Base::defineProperty(cx, wrapper, id, desc);
}
bool
SecurityWrapper<Base>::defineProperty(JSContext *cx, HandleObject wrapper,
HandleId id, MutableHandle<PropertyDescriptor> desc,
ObjectOpResult &result) const
{
if (desc.getter() || desc.setter()) {
RootedValue idVal(cx, IdToValue(id));
JSString *str = ValueToSource(cx, idVal);
if (!str)
return false;
AutoStableStringChars chars(cx);
const char16_t *prop = nullptr;
if (str->ensureFlat(cx) && chars.initTwoByte(cx, str))
prop = chars.twoByteChars();
JS_ReportErrorNumberUC(cx, GetErrorMessage, nullptr,
JSMSG_ACCESSOR_DEF_DENIED, prop);
return false;
}
return Base::defineProperty(cx, wrapper, id, desc, result);
}
bool
DOMProxyHandler::defineProperty(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<jsid> id,
MutableHandle<JSPropertyDescriptor> desc, bool* defined)
{
if (desc.hasGetterObject() && desc.setter() == JS_StrictPropertyStub) {
return JS_ReportErrorFlagsAndNumber(cx,
JSREPORT_WARNING | JSREPORT_STRICT |
JSREPORT_STRICT_MODE_ERROR,
js_GetErrorMessage, NULL,
JSMSG_GETTER_ONLY);
}
if (xpc::WrapperFactory::IsXrayWrapper(proxy)) {
return true;
}
JSObject* expando = EnsureExpandoObject(cx, proxy);
if (!expando) {
return false;
}
bool dummy;
return js_DefineOwnProperty(cx, expando, id, desc, &dummy);
}
bool
js::SetPropertyIgnoringNamedGetter(JSContext *cx, const BaseProxyHandler *handler,
HandleObject proxy, HandleObject receiver,
HandleId id, MutableHandle<PropertyDescriptor> desc,
bool descIsOwn, bool strict, MutableHandleValue vp)
{
/* The control-flow here differs from ::get() because of the fall-through case below. */
if (descIsOwn) {
MOZ_ASSERT(desc.object());
// Check for read-only properties.
if (desc.isReadonly())
return strict ? Throw(cx, id, JSMSG_READ_ONLY) : true;
if (!desc.setter()) {
// Be wary of the odd explicit undefined setter case possible through
// Object.defineProperty.
if (!desc.hasSetterObject())
desc.setSetter(JS_StrictPropertyStub);
} else if (desc.hasSetterObject() || desc.setter() != JS_StrictPropertyStub) {
if (!CallSetter(cx, receiver, id, desc.setter(), desc.attributes(), strict, vp))
return false;
if (!proxy->is<ProxyObject>() || proxy->as<ProxyObject>().handler() != handler)
return true;
if (desc.isShared())
return true;
}
if (!desc.getter()) {
// Same as above for the null setter case.
if (!desc.hasGetterObject())
desc.setGetter(JS_PropertyStub);
}
desc.value().set(vp.get());
return handler->defineProperty(cx, receiver, id, desc);
}
if (desc.object()) {
// Check for read-only properties.
if (desc.isReadonly())
return strict ? Throw(cx, id, JSMSG_CANT_REDEFINE_PROP) : true;
if (!desc.setter()) {
// Be wary of the odd explicit undefined setter case possible through
// Object.defineProperty.
if (!desc.hasSetterObject())
desc.setSetter(JS_StrictPropertyStub);
} else if (desc.hasSetterObject() || desc.setter() != JS_StrictPropertyStub) {
if (!CallSetter(cx, receiver, id, desc.setter(), desc.attributes(), strict, vp))
return false;
if (!proxy->is<ProxyObject>() || proxy->as<ProxyObject>().handler() != handler)
return true;
if (desc.isShared())
return true;
}
if (!desc.getter()) {
// Same as above for the null setter case.
if (!desc.hasGetterObject())
desc.setGetter(JS_PropertyStub);
}
desc.value().set(vp.get());
return JSObject::defineGeneric(cx, receiver, id, desc.value(),
desc.getter(), desc.setter(), desc.attributes());
}
desc.object().set(receiver);
desc.value().set(vp.get());
desc.setAttributes(JSPROP_ENUMERATE);
desc.setGetter(nullptr);
desc.setSetter(nullptr); // Pick up the class getter/setter.
return JSObject::defineGeneric(cx, receiver, id, desc.value(), nullptr, nullptr,
JSPROP_ENUMERATE);
}
