bool JSHistory::getOwnPropertyDescriptorDelegate(ExecState* exec, PropertyName propertyName, PropertyDescriptor& descriptor)
{
if (!impl()->frame()) {
descriptor.setUndefined();
return true;
}
// Throw out all cross domain access
if (!shouldAllowAccessToFrame(exec, impl()->frame()))
return true;
// Check for the few functions that we allow, even when called cross-domain.
const HashEntry* entry = JSHistoryPrototype::s_info.propHashTable(exec)->entry(exec, propertyName);
if (entry) {
PropertySlot slot(this);
// Allow access to back(), forward() and go() from any frame.
if (entry->attributes() & JSC::Function) {
if (entry->function() == jsHistoryPrototypeFunctionBack) {
slot.setCustom(this, nonCachingStaticBackFunctionGetter);
descriptor.setDescriptor(slot.getValue(exec, propertyName), entry->attributes());
return true;
} else if (entry->function() == jsHistoryPrototypeFunctionForward) {
slot.setCustom(this, nonCachingStaticForwardFunctionGetter);
descriptor.setDescriptor(slot.getValue(exec, propertyName), entry->attributes());
return true;
} else if (entry->function() == jsHistoryPrototypeFunctionGo) {
slot.setCustom(this, nonCachingStaticGoFunctionGetter);
descriptor.setDescriptor(slot.getValue(exec, propertyName), entry->attributes());
return true;
}
}
} else {
// Allow access to toString() cross-domain, but always Object.toString.
if (propertyName == exec->propertyNames().toString) {
PropertySlot slot(this);
slot.setCustom(this, objectToStringFunctionGetter);
descriptor.setDescriptor(slot.getValue(exec, propertyName), entry->attributes());
return true;
}
}
descriptor.setUndefined();
return true;
}
bool JSLocation::getOwnPropertyDescriptorDelegate(ExecState* exec, const Identifier& propertyName, PropertyDescriptor& descriptor)
{
Frame* frame = impl()->frame();
if (!frame) {
descriptor.setUndefined();
return true;
}
// throw out all cross domain access
if (!allowAccessToFrame(exec, frame))
return true;
// Check for the few functions that we allow, even when called cross-domain.
const HashEntry* entry = JSLocationPrototype::s_info.propHashTable(exec)->entry(exec, propertyName);
PropertySlot slot;
if (entry && (entry->attributes() & JSC::Function)) {
if (entry->function() == jsLocationPrototypeFunctionReplace) {
slot.setCustom(this, nonCachingStaticReplaceFunctionGetter);
descriptor.setDescriptor(slot.getValue(exec, propertyName), entry->attributes());
return true;
} else if (entry->function() == jsLocationPrototypeFunctionReload) {
slot.setCustom(this, nonCachingStaticReloadFunctionGetter);
descriptor.setDescriptor(slot.getValue(exec, propertyName), entry->attributes());
return true;
} else if (entry->function() == jsLocationPrototypeFunctionAssign) {
slot.setCustom(this, nonCachingStaticAssignFunctionGetter);
descriptor.setDescriptor(slot.getValue(exec, propertyName), entry->attributes());
return true;
}
}
// FIXME: Other implementers of the Window cross-domain scheme (Window, History) allow toString,
// but for now we have decided not to, partly because it seems silly to return "[Object Location]" in
// such cases when normally the string form of Location would be the URL.
descriptor.setUndefined();
return true;
}
bool JSDOMWindow::getOwnPropertyDescriptor(ExecState* exec, const Identifier& propertyName, PropertyDescriptor& descriptor)
{
// Never allow cross-domain getOwnPropertyDescriptor
if (!allowsAccessFrom(exec))
return false;
const HashEntry* entry;
// We don't want any properties other than "close" and "closed" on a closed window.
if (!impl()->frame()) {
// The following code is safe for cross-domain and same domain use.
// It ignores any custom properties that might be set on the DOMWindow (including a custom prototype).
entry = s_info.propHashTable(exec)->entry(exec, propertyName);
if (entry && !(entry->attributes() & Function) && entry->propertyGetter() == jsDOMWindowClosed) {
descriptor.setDescriptor(jsBoolean(true), ReadOnly | DontDelete | DontEnum);
return true;
}
entry = JSDOMWindowPrototype::s_info.propHashTable(exec)->entry(exec, propertyName);
if (entry && (entry->attributes() & Function) && entry->function() == jsDOMWindowPrototypeFunctionClose) {
PropertySlot slot;
slot.setCustom(this, nonCachingStaticFunctionGetter<jsDOMWindowPrototypeFunctionClose, 0>);
descriptor.setDescriptor(slot.getValue(exec, propertyName), ReadOnly | DontDelete | DontEnum);
return true;
}
descriptor.setUndefined();
return true;
}
entry = JSDOMWindow::s_info.propHashTable(exec)->entry(exec, propertyName);
if (entry) {
PropertySlot slot;
slot.setCustom(this, entry->propertyGetter());
descriptor.setDescriptor(slot.getValue(exec, propertyName), entry->attributes());
return true;
}
// Check for child frames by name before built-in properties to
// match Mozilla. This does not match IE, but some sites end up
// naming frames things that conflict with window properties that
// are in Moz but not IE. Since we have some of these, we have to do
// it the Moz way.
if (impl()->frame()->tree()->child(identifierToAtomicString(propertyName))) {
PropertySlot slot;
slot.setCustom(this, childFrameGetter);
descriptor.setDescriptor(slot.getValue(exec, propertyName), ReadOnly | DontDelete | DontEnum);
return true;
}
bool ok;
unsigned i = propertyName.toArrayIndex(ok);
if (ok && i < impl()->frame()->tree()->childCount()) {
PropertySlot slot;
slot.setCustomIndex(this, i, indexGetter);
descriptor.setDescriptor(slot.getValue(exec, propertyName), ReadOnly | DontDelete | DontEnum);
return true;
}
// Allow shortcuts like 'Image1' instead of document.images.Image1
Document* document = impl()->frame()->document();
if (document->isHTMLDocument()) {
AtomicStringImpl* atomicPropertyName = findAtomicString(propertyName);
if (atomicPropertyName && (static_cast<HTMLDocument*>(document)->hasNamedItem(atomicPropertyName) || document->hasElementWithId(atomicPropertyName))) {
PropertySlot slot;
slot.setCustom(this, namedItemGetter);
descriptor.setDescriptor(slot.getValue(exec, propertyName), ReadOnly | DontDelete | DontEnum);
return true;
}
}
return Base::getOwnPropertyDescriptor(exec, propertyName, descriptor);
}
bool JSDOMWindow::getOwnPropertyDescriptor(JSObject* object, ExecState* exec, PropertyName propertyName, PropertyDescriptor& descriptor)
{
JSDOMWindow* thisObject = jsCast<JSDOMWindow*>(object);
// Never allow cross-domain getOwnPropertyDescriptor
if (!BindingSecurity::shouldAllowAccessToDOMWindow(exec, thisObject->impl()))
return false;
const HashEntry* entry;
// We don't want any properties other than "close" and "closed" on a closed window.
if (!thisObject->impl()->frame()) {
// The following code is safe for cross-domain and same domain use.
// It ignores any custom properties that might be set on the DOMWindow (including a custom prototype).
entry = s_info.propHashTable(exec)->entry(exec, propertyName);
if (entry && !(entry->attributes() & JSC::Function) && entry->propertyGetter() == jsDOMWindowClosed) {
descriptor.setDescriptor(jsBoolean(true), ReadOnly | DontDelete | DontEnum);
return true;
}
entry = JSDOMWindowPrototype::s_info.propHashTable(exec)->entry(exec, propertyName);
if (entry && (entry->attributes() & JSC::Function) && entry->function() == jsDOMWindowPrototypeFunctionClose) {
PropertySlot slot;
slot.setCustom(thisObject, nonCachingStaticFunctionGetter<jsDOMWindowPrototypeFunctionClose, 0>);
descriptor.setDescriptor(slot.getValue(exec, propertyName), ReadOnly | DontDelete | DontEnum);
return true;
}
descriptor.setUndefined();
return true;
}
entry = JSDOMWindow::s_info.propHashTable(exec)->entry(exec, propertyName);
if (entry) {
PropertySlot slot;
slot.setCustom(thisObject, entry->propertyGetter());
descriptor.setDescriptor(slot.getValue(exec, propertyName), entry->attributes());
return true;
}
// Check for child frames by name before built-in properties to
// match Mozilla. This does not match IE, but some sites end up
// naming frames things that conflict with window properties that
// are in Moz but not IE. Since we have some of these, we have to do
// it the Moz way.
if (thisObject->impl()->frame()->tree()->scopedChild(propertyNameToAtomicString(propertyName))) {
PropertySlot slot;
slot.setCustom(thisObject, childFrameGetter);
descriptor.setDescriptor(slot.getValue(exec, propertyName), ReadOnly | DontDelete | DontEnum);
return true;
}
unsigned i = propertyName.asIndex();
if (i < thisObject->impl()->frame()->tree()->scopedChildCount()) {
ASSERT(i != PropertyName::NotAnIndex);
PropertySlot slot;
slot.setCustomIndex(thisObject, i, indexGetter);
descriptor.setDescriptor(slot.getValue(exec, propertyName), ReadOnly | DontDelete | DontEnum);
return true;
}
// Allow shortcuts like 'Image1' instead of document.images.Image1
Document* document = thisObject->impl()->frame()->document();
if (document->isHTMLDocument()) {
AtomicStringImpl* atomicPropertyName = findAtomicString(propertyName);
if (atomicPropertyName && (toHTMLDocument(document)->hasNamedItem(atomicPropertyName) || document->hasElementWithId(atomicPropertyName))) {
PropertySlot slot;
slot.setCustom(thisObject, namedItemGetter);
descriptor.setDescriptor(slot.getValue(exec, propertyName), ReadOnly | DontDelete | DontEnum);
return true;
}
}
return Base::getOwnPropertyDescriptor(thisObject, exec, propertyName, descriptor);
}
