gecko-dev/security/sandbox/common/SandboxSettings.cpp

78 строки
2.0 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 http://mozilla.org/MPL/2.0/. */
#include "mozISandboxSettings.h"
#include "mozilla/ModuleUtils.h"
#include "mozilla/Preferences.h"
#include "prenv.h"
namespace mozilla {
int GetEffectiveContentSandboxLevel() {
if (PR_GetEnv("MOZ_DISABLE_CONTENT_SANDBOX")) {
return 0;
}
int level = Preferences::GetInt("security.sandbox.content.level");
// On Windows and macOS, enforce a minimum content sandbox level of 1 (except on
// Nightly, where it can be set to 0).
#if !defined(NIGHTLY_BUILD) && (defined(XP_WIN) || defined(XP_MACOSX))
if (level < 1) {
level = 1;
}
#endif
return level;
}
bool IsContentSandboxEnabled() {
return GetEffectiveContentSandboxLevel() > 0;
}
class SandboxSettings final : public mozISandboxSettings
{
public:
NS_DECL_ISUPPORTS
NS_DECL_MOZISANDBOXSETTINGS
SandboxSettings() { }
private:
~SandboxSettings() { }
};
NS_IMPL_ISUPPORTS(SandboxSettings, mozISandboxSettings)
NS_IMETHODIMP SandboxSettings::GetEffectiveContentSandboxLevel(int32_t *aRetVal)
{
*aRetVal = mozilla::GetEffectiveContentSandboxLevel();
return NS_OK;
}
NS_GENERIC_FACTORY_CONSTRUCTOR(SandboxSettings)
NS_DEFINE_NAMED_CID(MOZ_SANDBOX_SETTINGS_CID);
static const mozilla::Module::CIDEntry kSandboxSettingsCIDs[] = {
{ &kMOZ_SANDBOX_SETTINGS_CID, false, nullptr, SandboxSettingsConstructor },
{ nullptr }
};
static const mozilla::Module::ContractIDEntry kSandboxSettingsContracts[] = {
{ MOZ_SANDBOX_SETTINGS_CONTRACTID, &kMOZ_SANDBOX_SETTINGS_CID },
{ nullptr }
};
static const mozilla::Module kSandboxSettingsModule = {
mozilla::Module::kVersion,
kSandboxSettingsCIDs,
kSandboxSettingsContracts
};
NSMODULE_DEFN(SandboxSettingsModule) = &kSandboxSettingsModule;
} // namespace mozilla