@azure/msal-common
Version:
Microsoft Authentication Library for js
51 lines (43 loc) • 1.43 kB
text/typescript
/*
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License.
*/
/**
* Utility functions for managing date and time operations.
*/
/**
* return the current time in Unix time (seconds).
*/
export function nowSeconds(): number {
// Date.getTime() returns in milliseconds.
return Math.round(new Date().getTime() / 1000.0);
}
/**
* check if a token is expired based on given UTC time in seconds.
* @param expiresOn
*/
export function isTokenExpired(expiresOn: string, offset: number): boolean {
// check for access token expiry
const expirationSec = Number(expiresOn) || 0;
const offsetCurrentTimeSec = nowSeconds() + offset;
// If current time + offset is greater than token expiration time, then token is expired.
return offsetCurrentTimeSec > expirationSec;
}
/**
* If the current time is earlier than the time that a token was cached at, we must discard the token
* i.e. The system clock was turned back after acquiring the cached token
* @param cachedAt
* @param offset
*/
export function wasClockTurnedBack(cachedAt: string): boolean {
const cachedAtSec = Number(cachedAt);
return cachedAtSec > nowSeconds();
}
/**
* Waits for t number of milliseconds
* @param t number
* @param value T
*/
export function delay<T>(t: number, value?: T): Promise<T | void> {
return new Promise((resolve) => setTimeout(() => resolve(value), t));
}