gecko/js/xpconnect/wrappers/CrossOriginWrapper.cpp

138 lines
4.6 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* vim: set ts=4 sw=4 et tw=99 ft=cpp:
*
* ***** 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.org code, released
* June 24, 2010.
*
* The Initial Developer of the Original Code is
* The Mozilla Foundation
*
* Contributor(s):
* Andreas Gal <gal@mozilla.com>
*
* 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 ***** */
#include "nsJSPrincipals.h"
#include "XPCWrapper.h"
#include "CrossOriginWrapper.h"
#include "AccessCheck.h"
#include "WrapperFactory.h"
namespace xpc {
NoWaiverWrapper::NoWaiverWrapper(unsigned flags) : js::CrossCompartmentWrapper(flags)
{
}
NoWaiverWrapper::~NoWaiverWrapper()
{
}
CrossOriginWrapper::CrossOriginWrapper(unsigned flags) : NoWaiverWrapper(flags)
{
}
CrossOriginWrapper::~CrossOriginWrapper()
{
}
bool
CrossOriginWrapper::getPropertyDescriptor(JSContext *cx, JSObject *wrapper, jsid id,
bool set, js::PropertyDescriptor *desc)
{
return CrossCompartmentWrapper::getPropertyDescriptor(cx, wrapper, id, set, desc) &&
WrapperFactory::WaiveXrayAndWrap(cx, &desc->value);
}
bool
CrossOriginWrapper::getOwnPropertyDescriptor(JSContext *cx, JSObject *wrapper, jsid id,
bool set, js::PropertyDescriptor *desc)
{
return CrossCompartmentWrapper::getOwnPropertyDescriptor(cx, wrapper, id, set, desc) &&
WrapperFactory::WaiveXrayAndWrap(cx, &desc->value);
}
bool
CrossOriginWrapper::get(JSContext *cx, JSObject *wrapper, JSObject *receiver, jsid id,
js::Value *vp)
{
return CrossCompartmentWrapper::get(cx, wrapper, receiver, id, vp) &&
WrapperFactory::WaiveXrayAndWrap(cx, vp);
}
bool
CrossOriginWrapper::call(JSContext *cx, JSObject *wrapper, unsigned argc, js::Value *vp)
{
return CrossCompartmentWrapper::call(cx, wrapper, argc, vp) &&
WrapperFactory::WaiveXrayAndWrap(cx, vp);
}
bool
CrossOriginWrapper::construct(JSContext *cx, JSObject *wrapper,
unsigned argc, js::Value *argv, js::Value *rval)
{
return CrossCompartmentWrapper::construct(cx, wrapper, argc, argv, rval) &&
WrapperFactory::WaiveXrayAndWrap(cx, rval);
}
bool
NoWaiverWrapper::enter(JSContext *cx, JSObject *wrapper, jsid id, Action act, bool *bp)
{
*bp = true; // always allowed
nsIScriptSecurityManager *ssm = XPCWrapper::GetSecurityManager();
if (!ssm) {
return true;
}
// Note: By the time enter is called here, CrossCompartmentWrapper has
// already pushed the fake stack frame onto cx. Because of this, the frame
// that we're clamping is the one that we want (the one in our compartment).
JSStackFrame *fp = NULL;
nsIPrincipal *principal = GetCompartmentPrincipal(js::GetObjectCompartment(wrappedObject(wrapper)));
nsresult rv = ssm->PushContextPrincipal(cx, JS_FrameIterator(cx, &fp), principal);
if (NS_FAILED(rv)) {
NS_WARNING("Not allowing call because we're out of memory");
JS_ReportOutOfMemory(cx);
return false;
}
return true;
}
void
NoWaiverWrapper::leave(JSContext *cx, JSObject *wrapper)
{
nsIScriptSecurityManager *ssm = XPCWrapper::GetSecurityManager();
if (ssm) {
ssm->PopContextPrincipal(cx);
}
}
}