nfp_sites/app/authentication.js

69 lines
1.8 KiB
JavaScript

const storageName = 'logintoken'
const Authentication = {
currentUser: null,
isAdmin: false,
loadedGoogle: false,
loadingGoogle: false,
loadingListeners: [],
authListeners: [],
updateToken: function(token) {
if (!token) return Authentication.clearToken()
localStorage.setItem(storageName, token)
Authentication.currentUser = JSON.parse(atob(token.split('.')[1]))
if (Authentication.authListeners.length) {
Authentication.authListeners.forEach(function(x) { x(Authentication.currentUser) })
}
},
clearToken: function() {
Authentication.currentUser = null
localStorage.removeItem(storageName)
Authentication.isAdmin = false
},
addEvent: function(event) {
Authentication.authListeners.push(event)
},
setAdmin: function(item) {
Authentication.isAdmin = item
},
createGoogleScript: function() {
if (Authentication.loadedGoogle) return Promise.resolve()
return new Promise(function (res) {
if (Authentication.loadedGoogle) return res()
Authentication.loadingListeners.push(res)
if (Authentication.loadingGoogle) return
Authentication.loadingGoogle = true
let gscript = document.createElement('script')
gscript.type = 'text/javascript'
gscript.async = true
gscript.defer = true
gscript.src = 'https://apis.google.com/js/platform.js?onload=googleLoaded'
document.body.appendChild(gscript)
})
},
getToken: function() {
return localStorage.getItem(storageName)
},
}
if (!window.googleLoaded) {
window.googleLoaded = function() {
Authentication.loadedGoogle = true
while (Authentication.loadingListeners.length) {
Authentication.loadingListeners.pop()()
}
}
}
Authentication.updateToken(localStorage.getItem(storageName))
module.exports = Authentication