브 라 우 저 데이터 영구 화 저장 기술

# HTML meta
"Expires" content="Mon, 20 Jul 2016 28:88:00 GMT" />
"Cache-Control" content="max-age=7200"/>

#    
const static = require('koa-static')
const app = koa()
app.use(static('./pages', {
    maxage:7200
}))

#     
let rkey = /^[0-9A-Za-z_@-]*$/
let store

function init(){
  if(typeof store === 'undefined') {
     store = window['localStorage']
  }
  return true;
}
function isValidKey(key){
	if (typeof key !== 'string') {
		return false
	}
	return rkey.test(key)
}

exports = {
	set(key, value){
		let success = false
		if (isValidKey(key) && init()) {
			try {
				value += ''
				store.setItem(key, value)
				success = true
			} catch (e) {}
		}
		return success
	},
	get(key) {
		if (isValidKey(key) && init()){
			try{
				return store.getItem(key)
			} catch (e) {}
		}
		return null
	},
	remove(key){
		if (isValidKey(key) && init()){
			try{
				return store.removeItem(key)
				return true
			} catch (e) {}
		}
		return false
	},
	clear(){
		if (init()){
			try{
				for (let key in store) {
					store.removeItem(key)
				}
				return true
			} catch (e) {}
		}
		return false
	}
}
module.exports = exports

#          Cookies
this.cookies.set('username', 'ouven', {
   domain: '.domain.com',
    path: '/'
})

#   

exports = {
	get(n){
		let m = document.cookie.match(new RegExp( "(^| )"+n+"=([^;]*)(;|$)" ))
		return !m ? '' : decodeURIComponent(m[2])
	},
	set(name, value, domain, path, hour){
		let expire = new Date()
		expire.setTime(expire.getTime() + (hour ? 3600000 * hour : 30*24*60*60*1000))
		document.cookie = name + '=' + value + ';' + 'expires=' + expire.toGMTString() + ';path=' + (path ? path : '/') + '; ' + (domain ? ('domain=' + domain' + ';') : '')
	},
	del (name, domain, path) {
		document.cookie = name + '=; expires=Mon, 26 Jul 1997 05:00:00 GMT; path=' + (path ? path : '/') + '; ' + (domain ? ('domain=' + domain + ';') : '')
	},
	clear() {
		let rs = document.cookie.match(new RegExp("([^;][^;]*)(?=(=[^;]*)(;|$))", 'gi'))
		for (let i in rs) {
			document.cookie = rs[i] + '=;expires=Mon, 26 Jul 1997 05:00:00 GMT; path=/;'
		}
	}
}
module.exports = exports