bool
CrossCompartmentWrapper::nativeCall(JSContext *cx, JSObject *wrapper, Class *clasp, Native native, CallArgs srcArgs)
{
JS_ASSERT_IF(!srcArgs.calleev().isUndefined(),
srcArgs.callee().toFunction()->native() == native ||
srcArgs.callee().toFunction()->native() == js_generic_native_method_dispatcher);
JS_ASSERT(&srcArgs.thisv().toObject() == wrapper);
JS_ASSERT(!UnwrapObject(wrapper)->isCrossCompartmentWrapper());
JSObject *wrapped = wrappedObject(wrapper);
AutoCompartment call(cx, wrapped);
if (!call.enter())
return false;
InvokeArgsGuard dstArgs;
if (!cx->stack.pushInvokeArgs(cx, srcArgs.length(), &dstArgs))
return false;
Value *src = srcArgs.base();
Value *srcend = srcArgs.array() + srcArgs.length();
Value *dst = dstArgs.base();
for (; src != srcend; ++src, ++dst) {
*dst = *src;
if (!call.destination->wrap(cx, dst))
return false;
}
if (!Wrapper::nativeCall(cx, wrapper, clasp, native, dstArgs))
return false;
dstArgs.pop();
call.leave();
srcArgs.rval() = dstArgs.rval();
return call.origin->wrap(cx, &srcArgs.rval());
}
bool
CrossCompartmentWrapper::nativeCall(JSContext *cx, IsAcceptableThis test, NativeImpl impl,
CallArgs srcArgs)
{
Rooted<JSObject*> wrapper(cx, &srcArgs.thisv().toObject());
JS_ASSERT(srcArgs.thisv().isMagic(JS_IS_CONSTRUCTING) ||
!UnwrapObject(wrapper)->isCrossCompartmentWrapper());
RootedObject wrapped(cx, wrappedObject(wrapper));
{
AutoCompartment call(cx, wrapped);
InvokeArgsGuard dstArgs;
if (!cx->stack.pushInvokeArgs(cx, srcArgs.length(), &dstArgs))
return false;
Value *src = srcArgs.base();
Value *srcend = srcArgs.array() + srcArgs.length();
Value *dst = dstArgs.base();
for (; src < srcend; ++src, ++dst) {
*dst = *src;
if (!cx->compartment->wrap(cx, dst))
return false;
}
if (!CallNonGenericMethod(cx, test, impl, dstArgs))
return false;
srcArgs.rval().set(dstArgs.rval());
dstArgs.pop();
}
return cx->compartment->wrap(cx, srcArgs.rval().address());
}
bool
CrossCompartmentWrapper::nativeCall(JSContext *cx, JSObject *wrapper, Class *clasp, Native native, CallArgs srcArgs)
{
JS_ASSERT(srcArgs.thisv().isMagic(JS_IS_CONSTRUCTING) || &srcArgs.thisv().toObject() == wrapper);
JS_ASSERT(!UnwrapObject(wrapper)->isCrossCompartmentWrapper());
JSObject *wrapped = wrappedObject(wrapper);
AutoCompartment call(cx, wrapped);
if (!call.enter())
return false;
InvokeArgsGuard dstArgs;
if (!cx->stack.pushInvokeArgs(cx, srcArgs.length(), &dstArgs))
return false;
Value *src = srcArgs.base();
Value *srcend = srcArgs.array() + srcArgs.length();
Value *dst = dstArgs.base();
for (; src != srcend; ++src, ++dst) {
*dst = *src;
if (!call.destination->wrap(cx, dst))
return false;
}
if (!CallJSNative(cx, native, dstArgs))
return false;
srcArgs.rval() = dstArgs.rval();
dstArgs.pop();
call.leave();
return cx->compartment->wrap(cx, &srcArgs.rval());
}
bool
CrossCompartmentWrapper::nativeCall(JSContext *cx, IsAcceptableThis test, NativeImpl impl,
CallArgs srcArgs)
{
RootedObject wrapper(cx, &srcArgs.thisv().toObject());
JS_ASSERT(srcArgs.thisv().isMagic(JS_IS_CONSTRUCTING) ||
!UncheckedUnwrap(wrapper)->isCrossCompartmentWrapper());
RootedObject wrapped(cx, wrappedObject(wrapper));
{
AutoCompartment call(cx, wrapped);
InvokeArgsGuard dstArgs;
if (!cx->stack.pushInvokeArgs(cx, srcArgs.length(), &dstArgs))
return false;
Value *src = srcArgs.base();
Value *srcend = srcArgs.array() + srcArgs.length();
Value *dst = dstArgs.base();
RootedValue source(cx);
for (; src < srcend; ++src, ++dst) {
source = *src;
if (!cx->compartment->wrap(cx, &source))
return false;
*dst = source.get();
// Handle |this| specially. When we rewrap on the other side of the
// membrane, we might apply a same-compartment security wrapper that
// will stymie this whole process. If that happens, unwrap the wrapper.
// This logic can go away when same-compartment security wrappers go away.
if ((src == srcArgs.base() + 1) && dst->isObject()) {
RootedObject thisObj(cx, &dst->toObject());
if (thisObj->isWrapper() &&
!Wrapper::wrapperHandler(thisObj)->isSafeToUnwrap())
{
JS_ASSERT(!IsCrossCompartmentWrapper(thisObj));
*dst = ObjectValue(*Wrapper::wrappedObject(thisObj));
}
}
}
if (!CallNonGenericMethod(cx, test, impl, dstArgs))
return false;
srcArgs.rval().set(dstArgs.rval());
dstArgs.pop();
}
return cx->compartment->wrap(cx, srcArgs.rval());
}