/*
 * -------------------------------------------------------------------------
 * This file is part of the MindStudio project.
 * Copyright (c) 2025 Huawei Technologies Co.,Ltd.
 *
 * MindStudio is licensed under Mulan PSL v2.
 * You can use this software according to the terms and conditions of the Mulan PSL v2.
 * You may obtain a copy of Mulan PSL v2 at:
 *
 *          http://license.coscl.org.cn/MulanPSL2
 *
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
 * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 * See the Mulan PSL v2 for more details.
 * -------------------------------------------------------------------------
 */
#include "SafeFile.h"

namespace Dic {
std::ifstream OpenReadFileSafely(const std::string &path, std::ios::openmode mode) {
    std::ifstream res;
    res.setstate(std::ifstream::badbit);
    std::string message;
    if (mode & std::ios::out) {
        message = "Should open file in read mode.";
        Server::ServerLog::Error(message + " path: " + path);
        return res;
    }
    std::string tmpPath = FileUtil::PathPreprocess(path);
    if (!FileUtil::CheckPathSecurity(tmpPath, CHECK_FILE_READ)) {
        message = "Unable to open file safely, the file path is insecure or not a regular file.";
        Server::ServerLog::Error(message + " path: " + path);
        return res;
    }
#ifdef _WIN32
    tmpPath = FileUtil::ConvertToLongPath(tmpPath);
#endif
    res.open(tmpPath, std::ios::in | mode);
    return res;
}
}