peertube-plugin-livechat/conversejs/lib/nick.ts

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/**
* Generates a random nickname.
* @param base Nickname prefix
* @returns A nickname like "Given Base 12345"
*/
function randomNick (base: string): string {
// using a 6 digit random number to generate a nickname with low colision risk
const n = 100000 + Math.floor(Math.random() * 900000)
return base + ' ' + n.toString()
}
/**
* Get the previous anonymous nickname (stored in localStorage).
* If it was set more than 12 hours ago, it will be ignored (considering the nickname should not remain forever).
* @returns previous nickname or null
*/
function getPreviousAnonymousNick (): string | null {
try {
const lastAccess = parseInt(localStorage.getItem('livechat-previous-anonymous-nickname-last-access') ?? '0')
const now = Date.now()
if (lastAccess && !isNaN(lastAccess)) {
const expires = lastAccess + 1000 * 60 * 60 * 12 // nickname expires after 12 hours
if (now > expires) {
console.log('Anonymous nickname has expired.')
localStorage.removeItem('livechat-previous-anonymous-nickname')
localStorage.removeItem('livechat-previous-anonymous-nickname-last-access')
return null
}
}
const nick = localStorage.getItem('livechat-previous-anonymous-nickname')
if (nick !== null) {
localStorage.setItem('livechat-previous-anonymous-nickname-last-access', now.toString())
}
return nick
} catch (err) {
console.error(err)
return null
}
}
/**
* Stores the chosen nickname in localStorage.
*/
function setPreviousAnonymousNick (nick: string): void {
try {
console.log('Storing anonymous nickname', nick)
localStorage.setItem('livechat-previous-anonymous-nickname', nick)
localStorage.setItem('livechat-previous-anonymous-nickname-last-access', Date.now().toString())
} catch (err) {
console.error(err)
}
}
export {
randomNick,
getPreviousAnonymousNick,
setPreviousAnonymousNick
}