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87 lines
2.2 KiB
87 lines
2.2 KiB
const basicAuth = require("express-basic-auth");
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const passwordHash = require("./password-hash");
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const { R } = require("redbean-node");
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const { setting } = require("./util-server");
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const { loginRateLimiter } = require("./rate-limiter");
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/**
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* Login to web app
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* @param {string} username
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* @param {string} password
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* @returns {Promise<(Bean|null)>}
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*/
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exports.login = async function (username, password) {
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if (typeof username !== "string" || typeof password !== "string") {
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return null;
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}
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let user = await R.findOne("user", " username = ? AND active = 1 ", [
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username,
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]);
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if (user && passwordHash.verify(password, user.password)) {
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// Upgrade the hash to bcrypt
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if (passwordHash.needRehash(user.password)) {
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await R.exec("UPDATE `user` SET password = ? WHERE id = ? ", [
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passwordHash.generate(password),
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user.id,
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]);
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}
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return user;
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}
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return null;
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};
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/**
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* Callback for myAuthorizer
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* @callback myAuthorizerCB
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* @param {any} err Any error encountered
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* @param {boolean} authorized Is the client authorized?
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*/
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/**
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* Custom authorizer for express-basic-auth
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* @param {string} username
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* @param {string} password
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* @param {myAuthorizerCB} callback
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*/
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function myAuthorizer(username, password, callback) {
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// Login Rate Limit
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loginRateLimiter.pass(null, 0).then((pass) => {
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if (pass) {
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exports.login(username, password).then((user) => {
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callback(null, user != null);
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if (user == null) {
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loginRateLimiter.removeTokens(1);
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}
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});
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} else {
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callback(null, false);
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}
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});
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}
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/**
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* Use basic auth if auth is not disabled
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* @param {express.Request} req Express request object
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* @param {express.Response} res Express response object
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* @param {express.NextFunction} next
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*/
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exports.basicAuth = async function (req, res, next) {
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const middleware = basicAuth({
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authorizer: myAuthorizer,
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authorizeAsync: true,
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challenge: true,
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});
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const disabledAuth = await setting("disableAuth");
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if (!disabledAuth) {
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middleware(req, res, next);
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} else {
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next();
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}
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};
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