/* * Copyright (C) 2008 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of * its contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "config.h" #include "JSHistory.h" #include "Frame.h" #include "History.h" #include "kjs_window.h" using namespace KJS; namespace WebCore { bool JSHistory::customGetOwnPropertySlot(ExecState* exec, const Identifier& propertyName, PropertySlot& slot) { // When accessing History cross-domain, functions are always the native built-in ones. // See JSDOMWindow::customGetOwnPropertySlot for additional details. // Our custom code is only needed to implement the Window cross-domain scheme, so if access is // allowed, return false so the normal lookup will take place. String message; if (allowsAccessFromFrame(exec, impl()->frame(), message)) return false; // Check for the few functions that we allow, even when called cross-domain. const HashEntry* entry = Lookup::findEntry(JSHistoryPrototype::info.propHashTable, propertyName); if (entry) { // Allow access to back(), forward() and go() from any frame. if ((entry->attr & Function) && (entry->value.functionValue == jsHistoryPrototypeFunctionBack || entry->value.functionValue == jsHistoryPrototypeFunctionForward || entry->value.functionValue == jsHistoryPrototypeFunctionGo)) { slot.setStaticEntry(this, entry, nonCachingStaticFunctionGetter); return true; } } else { // Allow access to toString() cross-domain, but always Object.toString. if (propertyName == exec->propertyNames().toString) { slot.setCustom(this, objectToStringFunctionGetter); return true; } } printErrorMessageForFrame(impl()->frame(), message); slot.setUndefined(this); return true; } bool JSHistory::customPut(ExecState* exec, const Identifier& propertyName, JSValue* value, int attr) { // Only allow putting by frames in the same origin. if (!allowsAccessFromFrame(exec, impl()->frame())) return true; return false; } bool JSHistory::deleteProperty(ExecState* exec, const Identifier& propertyName) { // Only allow deleting by frames in the same origin. if (!allowsAccessFromFrame(exec, impl()->frame())) return false; return Base::deleteProperty(exec, propertyName); } bool JSHistory::customGetPropertyNames(ExecState* exec, PropertyNameArray&) { // Only allow the history object to enumerated by frames in the same origin. if (!allowsAccessFromFrame(exec, impl()->frame())) return true; return false; } } // namespace WebCore