Burgernotes/static/js/login.js

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JavaScript
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if (localStorage.getItem("DONOTSHARE-secretkey") !== null) {
window.location.replace("/app")
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document.body.innerHTML = "Redirecting.."
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throw new Error();
}
if (localStorage.getItem("DONOTSHARE-password") !== null) {
window.location.replace("/app")
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document.body.innerHTML = "Redirecting.."
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throw new Error();
}
let usernameBox = document.getElementById("usernameBox")
let passwordBox = document.getElementById("passwordBox")
let statusBox = document.getElementById("statusBox")
let signupButton = document.getElementById("signupButton")
function showElements(yesorno) {
if (!yesorno) {
usernameBox.classList.add("hidden")
passwordBox.classList.add("hidden")
signupButton.classList.add("hidden")
}
else {
usernameBox.classList.remove("hidden")
passwordBox.classList.remove("hidden")
signupButton.classList.remove("hidden")
}
}
signupButton.addEventListener("click", (event) => {
async function doStuff() {
let username = usernameBox.value
let password = passwordBox.value
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if (username == "") {
statusBox.innerText = "username required"
return
}
if (password == "") {
statusBox.innerText = "password required"
return
}
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showElements(false)
statusBox.innerText = "welcome back!"
async function hashpass(pass) {
const key = await hashwasm.argon2id({
password: pass,
salt: await hashwasm.sha512(pass),
parallelism: 1,
iterations: 256,
memorySize: 512,
hashLength: 32,
outputType: "encoded"
});
return key
};
fetch("/api/login", {
method: "POST",
body: JSON.stringify({
username: username,
password: await hashpass(password)
}),
headers: {
"Content-type": "application/json; charset=UTF-8"
}
})
.then((response) => response)
.then((response) => {
async function doStuff() {
let responseData = await response.json()
if (response.status == 200) {
localStorage.setItem("DONOTSHARE-secretkey", responseData["key"])
localStorage.setItem("DONOTSHARE-password", await hashwasm.sha512(password))
window.location.href = "/app"
}
else if (response.status == 401) {
statusBox.innerText = "wrong username or password :("
showElements(true)
}
else {
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statusBox.innerText = "something went wrong! (error code: " + response.status + ")"
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showElements(true)
}
}
doStuff()
});
}
doStuff()
});