SkirdaElectronLauncher/app/assets/js/scripts/login.js

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/**
* Script for login.ejs
*/
// Validation Regexes.
const validUsername = /^[a-zA-Z0-9_]{1,16}$/
const basicEmail = /^\S+@\S+\.\S+$/
//const validEmail = /^(([^<>()\[\]\.,;:\s@\"]+(\.[^<>()\[\]\.,;:\s@\"]+)*)|(\".+\"))@(([^<>()[\]\.,;:\s@\"]+\.)+[^<>()[\]\.,;:\s@\"]{2,})$/i
// Login Elements
const loginCancelContainer = document.getElementById('loginCancelContainer')
const loginCancelButton = document.getElementById('loginCancelButton')
const loginEmailError = document.getElementById('loginEmailError')
const loginUsername = document.getElementById('loginUsername')
const loginPasswordError = document.getElementById('loginPasswordError')
const loginPassword = document.getElementById('loginPassword')
const checkmarkContainer = document.getElementById('checkmarkContainer')
const loginRememberOption = document.getElementById('loginRememberOption')
const loginButton = document.getElementById('loginButton')
const loginForm = document.getElementById('loginForm')
// Control variables.
let lu = false, lp = false
const loggerLogin = LoggerUtil('%c[Login]', 'color: #000668; font-weight: bold')
/**
* Show a login error.
*
* @param {HTMLElement} element The element on which to display the error.
* @param {string} value The error text.
*/
function showError(element, value){
element.innerHTML = value
element.style.opacity = 1
}
/**
* Shake a login error to add emphasis.
*
* @param {HTMLElement} element The element to shake.
*/
function shakeError(element){
if(element.style.opacity == 1){
element.classList.remove('shake')
void element.offsetWidth
element.classList.add('shake')
}
}
/**
* Validate that an email field is neither empty nor invalid.
*
* @param {string} value The email value.
*/
function validateEmail(value){
if(value){
if(!basicEmail.test(value) && !validUsername.test(value)){
showError(loginEmailError, '* Invalid Value')
loginDisabled(true)
lu = false
} else {
loginEmailError.style.opacity = 0
lu = true
if(lp){
loginDisabled(false)
}
}
} else {
lu = false
showError(loginEmailError, '* Required')
loginDisabled(true)
}
}
/**
* Validate that the password field is not empty.
*
* @param {string} value The password value.
*/
function validatePassword(value){
if(value){
loginPasswordError.style.opacity = 0
lp = true
if(lu){
loginDisabled(false)
}
} else {
lp = false
showError(loginPasswordError, '* Required')
loginDisabled(true)
}
}
// Emphasize errors with shake when focus is lost.
loginUsername.addEventListener('focusout', (e) => {
validateEmail(e.target.value)
shakeError(loginEmailError)
})
loginPassword.addEventListener('focusout', (e) => {
validatePassword(e.target.value)
shakeError(loginPasswordError)
})
// Validate input for each field.
loginUsername.addEventListener('input', (e) => {
validateEmail(e.target.value)
})
loginPassword.addEventListener('input', (e) => {
validatePassword(e.target.value)
})
/**
* Enable or disable the login button.
*
* @param {boolean} v True to enable, false to disable.
*/
function loginDisabled(v){
if(loginButton.disabled !== v){
loginButton.disabled = v
}
}
/**
* Enable or disable loading elements.
*
* @param {boolean} v True to enable, false to disable.
*/
function loginLoading(v){
if(v){
loginButton.setAttribute('loading', v)
loginButton.innerHTML = loginButton.innerHTML.replace('LOGIN', 'LOGGING IN')
} else {
loginButton.removeAttribute('loading')
loginButton.innerHTML = loginButton.innerHTML.replace('LOGGING IN', 'LOGIN')
}
}
/**
* Enable or disable login form.
*
* @param {boolean} v True to enable, false to disable.
*/
function formDisabled(v){
loginDisabled(v)
loginCancelButton.disabled = v
loginUsername.disabled = v
loginPassword.disabled = v
if(v){
checkmarkContainer.setAttribute('disabled', v)
} else {
checkmarkContainer.removeAttribute('disabled')
}
loginRememberOption.disabled = v
}
/**
* Parses an error and returns a user-friendly title and description
* for our error overlay.
*
* @param {Error | {cause: string, error: string, errorMessage: string}} err A Node.js
* error or Mojang error response.
*/
function resolveError(err){
// Mojang Response => err.cause | err.error | err.errorMessage
// Node error => err.code | err.message
if(err.cause != null && err.cause === 'UserMigratedException') {
return {
title: 'Error During Login:<br>Invalid Credentials',
desc: 'You\'ve attempted to login with a migrated account. Try again using the account email as the username.'
}
} else {
if(err.error != null){
if(err.error === 'ForbiddenOperationException'){
if(err.errorMessage != null){
if(err.errorMessage === 'Invalid credentials. Invalid username or password.'){
return {
title: 'Error During Login:<br>Invalid Credentials',
desc: 'The email or password you\'ve entered is incorrect. Please try again.'
}
} else if(err.errorMessage === 'Invalid credentials.'){
return {
title: 'Error During Login:<br>Too Many Attempts',
desc: 'There have been too many login attempts with this account recently. Please try again later.'
}
}
}
}
} else {
// Request errors (from Node).
if(err.code != null){
if(err.code === 'ENOENT'){
// No Internet.
return {
title: 'Error During Login:<br>No Internet Connection',
desc: 'You must be connected to the internet in order to login. Please connect and try again.'
}
} else if(err.code === 'ENOTFOUND'){
// Could not reach server.
return {
title: 'Error During Login:<br>Authentication Server Offline',
desc: 'Mojang\'s authentication server is currently offline or unreachable. Please wait a bit and try again. You can check the status of the server on <a href="https://help.mojang.com/">Mojang\'s help portal</a>.'
}
}
}
}
}
if(err.message != null){
if(err.message === 'NotPaidAccount'){
return {
title: 'Error During Login:<br>Game Not Purchased',
desc: 'The account you are trying to login with has not purchased a copy of Minecraft.<br>You may purchase a copy on <a href="https://minecraft.net/">Minecraft.net</a>'
}
} else {
// Unknown error with request.
return {
title: 'Error During Login:<br>Unknown Error',
desc: err.message
}
}
} else {
// Unknown Mojang error.
return {
title: err.error,
desc: err.errorMessage
}
}
}
let loginViewOnSuccess = VIEWS.landing
let loginViewOnCancel = VIEWS.settings
let loginViewCancelHandler
function loginCancelEnabled(val){
if(val){
$(loginCancelContainer).show()
} else {
$(loginCancelContainer).hide()
}
}
loginCancelButton.onclick = (e) => {
switchView(getCurrentView(), loginViewOnCancel, 500, 500, () => {
loginUsername.value = ''
loginPassword.value = ''
loginCancelEnabled(false)
if(loginViewCancelHandler != null){
loginViewCancelHandler()
loginViewCancelHandler = null
}
})
}
// Disable default form behavior.
loginForm.onsubmit = () => { return false }
// Bind login button behavior.
loginButton.addEventListener('click', () => {
// Disable form.
formDisabled(true)
// Show loading stuff.
loginLoading(true)
AuthManager.addAccount(loginUsername.value, loginPassword.value).then((value) => {
updateSelectedAccount(value)
loginButton.innerHTML = loginButton.innerHTML.replace('LOGGING IN', 'SUCCESS')
$('.circle-loader').toggleClass('load-complete')
$('.checkmark').toggle()
setTimeout(() => {
switchView(VIEWS.login, loginViewOnSuccess, 500, 500, () => {
// Temporary workaround
if(loginViewOnSuccess === VIEWS.settings){
prepareSettings()
}
loginViewOnSuccess = VIEWS.landing // Reset this for good measure.
loginCancelEnabled(false) // Reset this for good measure.
loginViewCancelHandler = null // Reset this for good measure.
loginUsername.value = ''
loginPassword.value = ''
$('.circle-loader').toggleClass('load-complete')
$('.checkmark').toggle()
loginLoading(false)
loginButton.innerHTML = loginButton.innerHTML.replace('SUCCESS', 'LOGIN')
formDisabled(false)
})
}, 1000)
}).catch((err) => {
loginLoading(false)
const errF = resolveError(err)
setOverlayContent(errF.title, errF.desc, 'Try Again')
setOverlayHandler(() => {
formDisabled(false)
toggleOverlay(false)
})
toggleOverlay(true)
loggerLogin.log('Error while logging in.', err)
})
})