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/* -*- 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
#include "UtilityProcessSandboxing.h"
#include <vector>
#include <string>
#include "prenv.h"
namespace mozilla::ipc {
std::vector<std::string> split(const std::string& str, char s) {
std::vector<std::string> rv;
size_t last = 0;
size_t i;
size_t c = str.size();
for (i = 0; i <= c; ++i) {
if (i == c || str[i] == s) {
rv.push_back(str.substr(last, i - last));
last = i + 1;
}
}
return rv;
}
bool IsUtilitySandboxEnabled(const char* envVar, SandboxingKind aKind) {
#ifdef XP_WIN
// Sandboxing the Windows file dialog is probably not useful.
//
// (Additionally, it causes failures in our test environments: when running
// tests on windows-11-2009-qr machines, sandboxed child processes can't see
// or interact with any other process's windows -- which means they can't
// select a window from the parent process as the file dialog's parent. This
// occurs regardless of the sandbox preferences, which is why we disable
// sandboxing entirely rather than use a maximally permissive preference-set.
// This behavior has not been seen in user-facing environments.)
if (aKind == SandboxingKind::WINDOWS_FILE_DIALOG) {
return false;
}
#endif
if (envVar == nullptr) {
return true;
}
const std::string disableUtility(envVar);
if (disableUtility == "1") {
return false;
}
std::vector<std::string> components = split(disableUtility, ',');
const std::string thisKind = "utility:" + std::to_string(aKind);
for (const std::string& thisOne : components) {
if (thisOne == thisKind) {
return false;
}
}
return true;
}
bool IsUtilitySandboxEnabled(SandboxingKind aKind) {
return IsUtilitySandboxEnabled(PR_GetEnv("MOZ_DISABLE_UTILITY_SANDBOX"),
aKind);
}
} // namespace mozilla::ipc