Function saveConfig

src/confighttp.cpp:1049–1079

* @brief Save the configuration settings. * @param response The HTTP response object. * @param request The HTTP request object. * The body for the post request should be JSON serialized in the following format: * @code{.json} * { * "key": "value" * } * @endcode * * @attention{It is recommended to ONLY save the config settings that differ from the default behavior.}

   * @api_examples{/api/config| POST| {"key":"value"}}
   */
  void saveConfig(resp_https_t response, req_https_t request) {
    if (!validateContentType(response, request, "application/json") || !authenticate(response, request)) {
      return;
    }

    print_req(request);

    std::stringstream ss;
    ss << request->content.rdbuf();
    try {
      // TODO: Input Validation
      std::stringstream config_stream;
      nlohmann::json output_tree;
      nlohmann::json input_tree = nlohmann::json::parse(ss);
      for (const auto &[k, v] : input_tree.items()) {
        if (v.is_null() || (v.is_string() && v.get<std::string>().empty())) {
          continue;
        }

        // v.dump() will dump valid json, which we do not want for strings in the config right now
        // we should migrate the config file to straight json and get rid of all this nonsense
        config_stream << k << " = " << (v.is_string() ? v.get<std::string>() : v.dump()) << std::endl;
      }
      file_handler::write_file(config::sunshine.config_file.c_str(), config_stream.str());
      output_tree["status"] = true;
      send_response(response, output_tree);
    } catch (std::exception &e) {
      BOOST_LOG(warning) << "SaveConfig: "sv << e.what();
      bad_request(response, request, e.what());
    }
  }

  /**
   * @brief Upload a cover image.