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// Copyright (c) 2009 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// This file relies on the 1.9 version of the unfrozen interfaces
// "nsIScriptSecurityManager" and "nsIScriptObjectPrincipal"
// from gecko 1.9, which means that this implementation is specific to
// FireFox 3.0 and any other browsers built from the same gecko version.
// See [http://en.wikipedia.org/wiki/Gecko_(layout_engine]
// It's a good bet that nsIScriptSecurityManager will change for gecko
// 1.9.1 and FireFox 3.5, in which case we'll need another instance of this
// code for the 3.5 version of FireFox.
#include "third_party/xulrunner-sdk/win/include/xpcom/nsIServiceManager.h"
// These are needed to work around typedef conflicts in chrome headers.
#define _UINT32
#define _INT32
#include "base/logging.h"
#include "chrome_frame/np_browser_functions.h"
#include "chrome_frame/scoped_ns_ptr_win.h"
#include "chrome_frame/ns_associate_iid_win.h"
#include "chrome_frame/np_utils.h"
#include "googleurl/src/gurl.h"
ASSOCIATE_IID(NS_ISERVICEMANAGER_IID_STR, nsIServiceManager);
// Returns true iff we're being instantiated into a document
// that has the system principal's privileges
bool IsFireFoxPrivilegedInvocation(NPP instance) {
// Make sure that we are running in Firefox before checking for privilege.
const char* user_agent = npapi::UserAgent(instance);
if (strstr(user_agent, "Firefox") == NULL)
return false;
ScopedNsPtr<nsIServiceManager> service_manager;
nsresult err = NS_GetServiceManager(service_manager.Receive());
if (NS_FAILED(err) || !service_manager.get())
return false;
ScopedNpObject<> window_element;
NPError nperr = npapi::GetValue(instance,
NPNVWindowNPObject,
window_element.Receive());
if (nperr != NPERR_NO_ERROR || !window_element.get())
return false;
std::string url_string(np_utils::GetLocation(instance, window_element));
GURL url(url_string);
return url.SchemeIs("chrome");
}
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