tsvesync/dist/lib/session.js

A TypeScript library for interacting with VeSync smart home devices

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.decodeJwtTimestamps = decodeJwtTimestamps;
/**
 * Decode a JWT token payload to extract iat/exp without verifying the signature.
 */
function decodeJwtTimestamps(token) {
    try {
        const parts = token.split('.');
        if (parts.length !== 3)
            return null;
        const payload = JSON.parse(Buffer.from(parts[1].replace(/-/g, '+').replace(/_/g, '/'), 'base64').toString('utf8'));
        let iat = typeof payload.iat === 'number' ? payload.iat : undefined;
        let exp = typeof payload.exp === 'number' ? payload.exp : undefined;
        // Normalize to seconds if values are in milliseconds
        if (iat && iat > 1e11)
            iat = Math.floor(iat / 1000);
        if (exp && exp > 1e11)
            exp = Math.floor(exp / 1000);
        return { iat, exp };
    }
    catch (_a) {
        return null;
    }
}