/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- * vim: set ts=4 sw=4 et tw=99: * * ***** BEGIN LICENSE BLOCK ***** * Version: MPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Mozilla Public License Version * 1.1 (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * http://www.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. * * The Original Code is Mozilla SpiderMonkey JavaScript 1.9 code, released * May 28, 2008. * * The Initial Developer of the Original Code is * Mozilla Foundation * Portions created by the Initial Developer are Copyright (C) 2010 * the Initial Developer. All Rights Reserved. * * Contributor(s): * Andreas Gal * * Alternatively, the contents of this file may be used under the terms of * either of the GNU General Public License Version 2 or later (the "GPL"), * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), * in which case the provisions of the GPL or the LGPL are applicable instead * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the MPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the MPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */ #ifndef jswrapper_h___ #define jswrapper_h___ #include "jsapi.h" #include "jsproxy.h" JS_BEGIN_EXTERN_C /* No-op wrapper handler base class. */ class JS_FRIEND_API(JSWrapper) : public js::JSProxyHandler { uintN mFlags; public: uintN flags() const { return mFlags; } explicit JSWrapper(uintN flags); typedef enum { PermitObjectAccess, PermitPropertyAccess, DenyAccess } Permission; virtual ~JSWrapper(); /* ES5 Harmony fundamental wrapper traps. */ virtual bool getPropertyDescriptor(JSContext *cx, JSObject *wrapper, jsid id, bool set, js::PropertyDescriptor *desc); virtual bool getOwnPropertyDescriptor(JSContext *cx, JSObject *wrapper, jsid id, bool set, js::PropertyDescriptor *desc); virtual bool defineProperty(JSContext *cx, JSObject *wrapper, jsid id, js::PropertyDescriptor *desc); virtual bool getOwnPropertyNames(JSContext *cx, JSObject *wrapper, js::AutoIdVector &props); virtual bool delete_(JSContext *cx, JSObject *wrapper, jsid id, bool *bp); virtual bool enumerate(JSContext *cx, JSObject *wrapper, js::AutoIdVector &props); virtual bool fix(JSContext *cx, JSObject *wrapper, js::Value *vp); /* ES5 Harmony derived wrapper traps. */ virtual bool has(JSContext *cx, JSObject *wrapper, jsid id, bool *bp); virtual bool hasOwn(JSContext *cx, JSObject *wrapper, jsid id, bool *bp); virtual bool get(JSContext *cx, JSObject *wrapper, JSObject *receiver, jsid id, js::Value *vp); virtual bool set(JSContext *cx, JSObject *wrapper, JSObject *receiver, jsid id, js::Value *vp); virtual bool enumerateOwn(JSContext *cx, JSObject *wrapper, js::AutoIdVector &props); virtual bool iterate(JSContext *cx, JSObject *wrapper, uintN flags, js::Value *vp); /* Spidermonkey extensions. */ virtual bool call(JSContext *cx, JSObject *wrapper, uintN argc, js::Value *vp); virtual bool construct(JSContext *cx, JSObject *wrapper, uintN argc, js::Value *argv, js::Value *rval); virtual bool hasInstance(JSContext *cx, JSObject *wrapper, const js::Value *vp, bool *bp); virtual JSType typeOf(JSContext *cx, JSObject *proxy); virtual JSString *obj_toString(JSContext *cx, JSObject *wrapper); virtual JSString *fun_toString(JSContext *cx, JSObject *wrapper, uintN indent); virtual void trace(JSTracer *trc, JSObject *wrapper); /* Policy enforcement traps. */ enum Action { GET, SET, CALL }; virtual bool enter(JSContext *cx, JSObject *wrapper, jsid id, Action act); virtual void leave(JSContext *cx, JSObject *wrapper); static JSWrapper singleton; static JSObject *New(JSContext *cx, JSObject *obj, JSObject *proto, JSObject *parent, JSWrapper *handler); static inline JSObject *wrappedObject(const JSObject *wrapper) { return wrapper->getProxyPrivate().toObjectOrNull(); } static inline JSWrapper *wrapperHandler(const JSObject *wrapper) { return static_cast(wrapper->getProxyHandler()); } enum { CROSS_COMPARTMENT = 1 << 0, LAST_USED_FLAG = CROSS_COMPARTMENT }; static void *getWrapperFamily(); }; /* Base class for all cross compartment wrapper handlers. */ class JS_FRIEND_API(JSCrossCompartmentWrapper) : public JSWrapper { public: JSCrossCompartmentWrapper(uintN flags); virtual ~JSCrossCompartmentWrapper(); /* ES5 Harmony fundamental wrapper traps. */ virtual bool getPropertyDescriptor(JSContext *cx, JSObject *wrapper, jsid id, bool set, js::PropertyDescriptor *desc); virtual bool getOwnPropertyDescriptor(JSContext *cx, JSObject *wrapper, jsid id, bool set, js::PropertyDescriptor *desc); virtual bool defineProperty(JSContext *cx, JSObject *wrapper, jsid id, js::PropertyDescriptor *desc); virtual bool getOwnPropertyNames(JSContext *cx, JSObject *wrapper, js::AutoIdVector &props); virtual bool delete_(JSContext *cx, JSObject *wrapper, jsid id, bool *bp); virtual bool enumerate(JSContext *cx, JSObject *wrapper, js::AutoIdVector &props); /* ES5 Harmony derived wrapper traps. */ virtual bool has(JSContext *cx, JSObject *wrapper, jsid id, bool *bp); virtual bool hasOwn(JSContext *cx, JSObject *wrapper, jsid id, bool *bp); virtual bool get(JSContext *cx, JSObject *wrapper, JSObject *receiver, jsid id, js::Value *vp); virtual bool set(JSContext *cx, JSObject *wrapper, JSObject *receiver, jsid id, js::Value *vp); virtual bool enumerateOwn(JSContext *cx, JSObject *wrapper, js::AutoIdVector &props); virtual bool iterate(JSContext *cx, JSObject *wrapper, uintN flags, js::Value *vp); /* Spidermonkey extensions. */ virtual bool call(JSContext *cx, JSObject *wrapper, uintN argc, js::Value *vp); virtual bool construct(JSContext *cx, JSObject *wrapper, uintN argc, js::Value *argv, js::Value *rval); virtual bool hasInstance(JSContext *cx, JSObject *wrapper, const js::Value *vp, bool *bp); virtual JSString *obj_toString(JSContext *cx, JSObject *wrapper); virtual JSString *fun_toString(JSContext *cx, JSObject *wrapper, uintN indent); static bool isCrossCompartmentWrapper(JSObject *obj); static JSCrossCompartmentWrapper singleton; }; namespace js { class AutoCompartment { public: JSContext * const context; JSCompartment * const origin; JSObject * const target; JSCompartment * const destination; private: LazilyConstructed frame; JSFrameRegs regs; AutoStringRooter input; bool entered; #ifdef DEBUG bool wasSane; #endif public: AutoCompartment(JSContext *cx, JSObject *target); ~AutoCompartment(); bool enter(); void leave(); private: // Prohibit copying. AutoCompartment(const AutoCompartment &); AutoCompartment & operator=(const AutoCompartment &); }; extern JSObject * TransparentObjectWrapper(JSContext *cx, JSObject *obj, JSObject *wrappedProto, JSObject *parent, uintN flags); } JS_END_EXTERN_C #endif