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Avoid saving passwords in session storage.

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This commit is contained in:
Juliusz Chroboczek 2021-11-01 00:15:20 +01:00
parent 3e52ac1253
commit 4d5e6a319a
2 changed files with 10 additions and 65 deletions
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2
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@ -11,6 +11,8 @@ Galène 0.4.1 (unreleased):
* Allow scrolling of the login dialog, useful on small devices.
* Fixed a typo that prevented the group name from being displayed.
* Made failed videos more visible.
* No longer attempt to save passwords in browser JavaScript, it's
insecure and not very useful.
5 September 2021: Galène 0.4

73
static/galene.js
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@ -29,52 +29,8 @@ let serverConnection;
/** @type {Object} */
let groupStatus = {};
/**
* @typedef {Object} userpass
* @property {string} username
* @property {string} password
*/
/* Some browsers disable session storage when cookies are disabled,
we fall back to a global variable. */
/**
* @type {userpass}
*/
let fallbackUserPass = null;
/**
* @param {string} username
* @param {string} password
*/
function storeUserPass(username, password) {
let userpass = {username: username, password: password};
try {
window.sessionStorage.setItem('userpass', JSON.stringify(userpass));
fallbackUserPass = null;
} catch(e) {
console.warn("Couldn't store password:", e);
fallbackUserPass = userpass;
}
}
/**
* Returns null if the user hasn't logged in yet.
*
* @returns {userpass}
*/
function getUserPass() {
/** @type{userpass} */
let userpass;
try {
let json = window.sessionStorage.getItem('userpass');
userpass = JSON.parse(json);
} catch(e) {
console.warn("Couldn't retrieve password:", e);
userpass = fallbackUserPass;
}
return userpass || null;
}
/** @type {string} */
let username = null;
/**
* @typedef {Object} settings
@ -291,14 +247,6 @@ function showVideo() {
scheduleReconsiderDownRate();
}
function fillLogin() {
let userpass = getUserPass();
getInputElement('username').value =
userpass ? userpass.username : '';
getInputElement('password').value =
userpass ? userpass.password : '';
}
/**
* @param{boolean} connected
*/
@ -314,7 +262,6 @@ function setConnected(connected) {
scheduleReconsiderDownRate();
}
} else {
fillLogin();
userbox.classList.add('invisible');
connectionbox.classList.remove('invisible');
displayError('Disconnected', 'error');
@ -325,10 +272,12 @@ function setConnected(connected) {
/** @this {ServerConnection} */
function gotConnected() {
username = getInputElement('username').value.trim();
setConnected(true);
let up = getUserPass();
try {
this.join(group, up.username, up.password);
let pw = getInputElement('password').value;
getInputElement('password').value = '';
this.join(group, username, pw);
} catch(e) {
console.error(e);
displayError(e);
@ -2086,10 +2035,8 @@ function gotUser(id, kind) {
}
function displayUsername() {
let userpass = getUserPass();
document.getElementById('userspan').textContent = username;
let text = '';
if(userpass && userpass.username)
document.getElementById('userspan').textContent = userpass.username;
if(serverConnection.permissions.op && serverConnection.permissions.present)
text = '(op, presenter)';
else if(serverConnection.permissions.op)
@ -2997,10 +2944,7 @@ document.getElementById('userform').onsubmit = async function(e) {
return;
connecting = true;
try {
let username = getInputElement('username').value.trim();
let password = getInputElement('password').value;
storeUserPass(username, password);
serverConnect();
await serverConnect();
} finally {
connecting = false;
}
@ -3118,7 +3062,6 @@ async function start() {
addFilters();
setMediaChoices(false).then(e => reflectSettings());
fillLogin();
document.getElementById("login-container").classList.remove('invisible');
setViewportHeight();
}