97 lines
2.2 KiB
JavaScript
97 lines
2.2 KiB
JavaScript
const passport = require("passport");
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const path = require("path");
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const User = require(path.join(__dirname, "/schemas/User"));
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class UserExistsError extends Error {
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constructor(message = "Username already exists.") {
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super(message);
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this.name = "UserExists";
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this.statusCode = 409;
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}
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}
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class MissingUsernameError extends Error {
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constructor(message = "No username given.") {
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super(message);
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this.name = "MissingUsernameError";
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this.statusCode = 400;
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}
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}
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class MissingPasswordError extends Error {
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constructor(message = "No password given.") {
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super(message);
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this.name = "MissingPasswordError";
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this.statusCode = 400;
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}
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}
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class IncorrectUserCredentialsError extends Error {
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constructor(message = "Incorrect username or password") {
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super(message);
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this.name = "IncorrectUserCredentialsError";
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this.statusCode = 404;
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}
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}
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function userAuthenticationErrorHandler(err) {
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if (err.name == "UserExistsError") {
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throw new UserExistsError(err.message);
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} else if (err.name == "MissingUsernameError") {
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throw new MissingUsernameError(err.message);
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} else if (err.name == "MissingPasswordError") {
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throw new MissingPasswordError(err.message);
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}
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throw err;
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}
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const register = (username, password) => {
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return User.register(new User({ username: username }), password).catch(userAuthenticationErrorHandler);
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};
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const authenticate = req => {
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return new Promise((resolve, reject) => {
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const { username, password } = req.body;
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if (username == undefined) throw new MissingUsernameError();
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if (password == undefined) throw new MissingPasswordError();
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passport.authenticate("local", function(err, user, info) {
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if (err) {
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reject(err);
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}
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if (!user) {
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reject(new IncorrectUserCredentialsError());
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}
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resolve(user);
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})(req);
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});
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};
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const login = (req, user) => {
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return new Promise((resolve, reject) => {
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req.logIn(user, err => {
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if (err) {
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reject(err);
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}
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resolve(user);
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});
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});
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};
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const logout = (req, res) => {
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req.logout();
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res.redirect("/");
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};
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module.exports = {
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register,
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authenticate,
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login,
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logout
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};
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