Files
vinlottis/api/user.js

91 lines
2.1 KiB
JavaScript

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