@aikidosec/firewall/agent/api-discovery/helpers/isDateTimeString.js

Zen by Aikido is an embedded Web Application Firewall that autonomously protects Node.js apps against common and critical attacks

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.default = isDateTimeString;
const pattern = /^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}(?:\.\d+)?(?:Z|[+-]\d{2}:\d{2})$/i;
/**
 * Checks if the string is a date time according to RFC3339
 * https://datatracker.ietf.org/doc/html/rfc3339#section-5.6
 */
function isDateTimeString(str) {
    if (str.length < 20 || str.length > 29) {
        return false;
    }
    if (!pattern.test(str)) {
        return false;
    }
    const [date, time] = str.split("T");
    // Validate date value
    const [year, month, day] = date.split("-").map(Number);
    if (month < 1 || month > 12 || day < 1 || day > 31 || year < 0) {
        return false;
    }
    // Validate time value
    const [hour, minute, second] = time.split(":").map(Number);
    if (hour < 0 ||
        hour > 23 ||
        minute < 0 ||
        minute > 59 ||
        second < 0 ||
        second > 59) {
        return false;
    }
    // Validate time offset value
    if (!str.endsWith("Z")) {
        const offset = str.slice(-5);
        const [offsetHour, offsetMinute] = offset.split(":").map(Number);
        if (offsetHour < 0 ||
            offsetHour > 23 ||
            offsetMinute < 0 ||
            offsetMinute > 59) {
            return false;
        }
    }
    return true;
}