firebase-auth-cloudflare-workers/dist/module/validator.js

Zero-dependencies firebase auth library for Cloudflare Workers.

/**
 * Validates that a string is a valid web URL.
 *
 * @param urlStr - The string to validate.
 * @returns Whether the string is valid web URL or not.
 */
export function isURL(urlStr) {
    if (typeof urlStr !== 'string') {
        return false;
    }
    // Lookup illegal characters.
    const re = /[^a-z0-9:/?#[\]@!$&'()*+,;=.\-_~%]/i;
    if (re.test(urlStr)) {
        return false;
    }
    try {
        const uri = new URL(urlStr);
        const scheme = uri.protocol;
        const hostname = uri.hostname;
        const pathname = uri.pathname;
        if (scheme !== 'http:' && scheme !== 'https:') {
            return false;
        }
        // Validate hostname: Can contain letters, numbers, underscore and dashes separated by a dot.
        // Each zone must not start with a hyphen or underscore.
        if (!hostname || !/^[a-zA-Z0-9]+[\w-]*([.]?[a-zA-Z0-9]+[\w-]*)*$/.test(hostname)) {
            return false;
        }
        // Allow for pathnames: (/chars+)*/?
        // Where chars can be a combination of: a-z A-Z 0-9 - _ . ~ ! $ & ' ( ) * + , ; = : @ %
        const pathnameRe = /^(\/[\w\-.~!$'()*+,;=:@%]+)*\/?$/;
        // Validate pathname.
        if (pathname && pathname !== '/' && !pathnameRe.test(pathname)) {
            return false;
        }
        // Allow any query string and hash as long as no invalid character is used.
    }
    catch (e) {
        return false;
    }
    return true;
}
/**
 * Validates that a value is a number.
 *
 * @param value - The value to validate.
 * @returns Whether the value is a number or not.
 */
export function isNumber(value) {
    return typeof value === 'number';
}
/**
 * Validates that a value is a string.
 *
 * @param value - The value to validate.
 * @returns Whether the value is a string or not.
 */
export function isString(value) {
    return typeof value === 'string';
}
/**
 * Validates that a value is a non-empty string.
 *
 * @param value - The value to validate.
 * @returns Whether the value is a non-empty string or not.
 */
export function isNonEmptyString(value) {
    return isString(value) && value !== '';
}
/**
   *
/**
 * Validates that a value is a nullable object.
 *
 * @param value - The value to validate.
 * @returns Whether the value is an object or not.
 */
export function isObject(value) {
    return typeof value === 'object' && !Array.isArray(value);
}
/**
 * Validates that a value is a non-null object.
 *
 * @param value - The value to validate.
 * @returns Whether the value is a non-null object or not.
 */
export function isNonNullObject(value) {
    return isObject(value) && value !== null;
}
/**
 * Validates that a string is a valid Firebase Auth uid.
 *
 * @param uid - The string to validate.
 * @returns Whether the string is a valid Firebase Auth uid.
 */
export function isUid(uid) {
    return typeof uid === 'string' && uid.length > 0 && uid.length <= 128;
}