author Gregory Szorc <>
Wed, 28 Jan 2015 13:37:00 -0800
changeset 110546 6ed4715ca6580d572af43aa6ec2d2270fd77521f
parent 109370 bd0f8cb6c50b9da9651dcb243fa22f2376cbb3bd
permissions -rw-r--r--
Close old release branch GECKO170_2012103106_RELBRANCH

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at */
/*Factory for internal browser security resource managers*/

#include "nsCOMPtr.h"
#include "nsIScriptSecurityManager.h"
#include "nsScriptSecurityManager.h"
#include "nsIPrincipal.h"
#include "nsPrincipal.h"
#include "nsSystemPrincipal.h"
#include "nsNullPrincipal.h"
#include "nsIScriptNameSpaceManager.h"
#include "nsIScriptContext.h"
#include "nsICategoryManager.h"
#include "nsXPIDLString.h"
#include "nsCOMPtr.h"
#include "nsIServiceManager.h"
#include "nsString.h"
#include "nsNetCID.h"
#include "nsIClassInfoImpl.h"
#include "nsJSUtils.h"
#include "nsPIDOMWindow.h"
#include "nsIScriptGlobalObject.h"
#include "nsIDocument.h"
#include "jsfriendapi.h"
#include "xpcprivate.h"
#include "mozilla/Preferences.h"
#include "mozilla/Telemetry.h"

using namespace mozilla;

// nsSecurityNameSet //



NS_IMPL_ISUPPORTS1(nsSecurityNameSet, nsIScriptExternalNameSet)

static JSBool
netscape_security_enablePrivilege(JSContext *cx, unsigned argc, jsval *vp)
    Telemetry::Accumulate(Telemetry::ENABLE_PRIVILEGE_EVER_CALLED, true);
    return JS_TRUE;

static JSFunctionSpec PrivilegeManager_static_methods[] = {
    JS_FS("enablePrivilege", netscape_security_enablePrivilege, 1, 0),

 * "Steal" calls to,
 * et al. so that code that worked with 4.0 can still work.
nsSecurityNameSet::InitializeNameSet(nsIScriptContext* aScriptContext)
    JSContext* cx = aScriptContext->GetNativeContext();
    JSObject *global = JS_ObjectToInnerObject(cx, JS_GetGlobalObject(cx));

     * Find Object.prototype's class by walking up the global object's
     * prototype chain.
    JSObject *obj = global;
    JSObject *proto;
    JSAutoRequest ar(cx);
    while ((proto = JS_GetPrototype(obj)) != nullptr)
        obj = proto;
    JSClass *objectClass = JS_GetClass(obj);

    JS::Value v;
    if (!JS_GetProperty(cx, global, "netscape", &v))
        return NS_ERROR_FAILURE;

    JSObject *securityObj;
    if (v.isObject()) {
         * "netscape" property of window object exists; get the
         * "security" property.
        obj = &v.toObject();
        if (!JS_GetProperty(cx, obj, "security", &v) || !v.isObject())
            return NS_ERROR_FAILURE;
        securityObj = &v.toObject();
    } else {
        /* define object */
        obj = JS_DefineObject(cx, global, "netscape", objectClass, nullptr, 0);
        if (obj == nullptr)
            return NS_ERROR_FAILURE;
        securityObj = JS_DefineObject(cx, obj, "security", objectClass,
                                      nullptr, 0);
        if (securityObj == nullptr)
            return NS_ERROR_FAILURE;

    // We hide enablePrivilege behind a pref because it has been altered in a
    // way that makes it fundamentally insecure to use in production. Mozilla
    // uses this pref during automated testing to support legacy test code that
    // uses enablePrivilege. If you're not doing test automation, you _must_ not
    // flip this pref, or you will be exposing all your users to security
    // vulnerabilities.
    if (!Preferences::GetBool("security.enablePrivilege.enable_for_tests"))
        return NS_OK;

    /* Define PrivilegeManager object with the necessary "static" methods. */
    obj = JS_DefineObject(cx, securityObj, "PrivilegeManager", objectClass,
                          nullptr, 0);
    if (obj == nullptr)
        return NS_ERROR_FAILURE;

    return JS_DefineFunctions(cx, obj, PrivilegeManager_static_methods)
           ? NS_OK
           : NS_ERROR_FAILURE;