elec0017_project/server/config.go

package main

import (
	"encoding/json"
	"io/ioutil"
	"os"
)

var configFile = "config.json"
var config = &configMain{
	Admins: map[string]configAdmin{},
	Boards: map[string]configBoard{},
}

type configMain struct{
	Admins map[string]configAdmin `json:"admins"`
	Boards map[string]configBoard `json:"boards"`
}

type configAdmin struct{
	Username string `json:"user"`
	Hash []byte		`json:"hash"`
}

type configBoard struct{
	ID uint16	`json:"ID"`
	KEY []byte	`json:"KEY"`
}

func loadConfig() {
	if _, err := os.Stat(configFile); os.IsNotExist(err) {
		return
	}
	jsonFile, err := os.Open(configFile)
	errCheckExit(err, "Unable to open config file")
	defer jsonFile.Close()
	byteValue, _ := ioutil.ReadAll(jsonFile)
	err = json.Unmarshal(byteValue, config)
	errCheck(err, "Failed to unmarshal config")
}

func saveConfig() {
	jsonValue, _ := json.Marshal(config)
	err := ioutil.WriteFile(configFile, jsonValue, 0644)
	errCheck(err, "Failed to write config")
}