Method writeResponse

src/Server/StaticRequestHandler.cpp:113–145

}

void StaticRequestHandler::writeResponse(WriteBuffer & out)
{
    static const String file_prefix = "file://";
    static const String config_prefix = "config://";

    if (startsWith(response_expression, file_prefix))
    {
        auto file_name = response_expression.substr(file_prefix.size(), response_expression.size() - file_prefix.size());
        if (file_name.starts_with('/'))
            file_name = file_name.substr(1);

        fs::path user_files_absolute_path = fs::canonical(fs::path(server.context()->getUserFilesPath()));
        String file_path = fs::weakly_canonical(user_files_absolute_path / file_name);

        if (!fs::exists(file_path))
            throw Exception(ErrorCodes::INCORRECT_FILE_NAME, "Invalid file name {} for static HTTPHandler. ", file_path);

        ReadBufferFromFile in(file_path);
        copyData(in, out);
    }
    else if (startsWith(response_expression, config_prefix))
    {
        if (response_expression.size() <= config_prefix.size())
            throw Exception(ErrorCodes::INVALID_CONFIG_PARAMETER,
                            "Static handling rule handler must contain a complete configuration path, for example: "
                            "config://config_key");

        const auto & config_path = response_expression.substr(config_prefix.size(), response_expression.size() - config_prefix.size());
        writeString(server.config().getRawString(config_path, "Ok.\n"), out);
    }
    else
        writeString(response_expression, out);
}

StaticRequestHandler::StaticRequestHandler(
    IServer & server_, const String & expression, const std::unordered_map<String, String> & http_response_headers_override_, int status_)