395 lines
13 KiB
JavaScript
395 lines
13 KiB
JavaScript
import { Router } from 'express';
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import SQL from 'sql-template-strings';
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import {ulid} from "ulid";
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import {buildDict, makeId, now} from "../../src/helpers";
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import jwt from "../../src/jwt";
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import mailer from "../../src/mailer";
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import { loadSuml } from '../loader';
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import avatar from '../avatar';
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import { config as socialLoginConfig, handlers as socialLoginHandlers } from '../social';
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import cookieSettings from "../../src/cookieSettings";
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const config = loadSuml('config');
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const translations = loadSuml('translations');
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const USERNAME_CHARS = 'A-Za-zĄĆĘŁŃÓŚŻŹąćęłńóśżź0-9._-';
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const normalise = s => s.trim().toLowerCase();
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const saveAuthenticator = async (db, type, user, payload, validForMinutes = null) => {
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const id = ulid();
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await db.get(SQL`INSERT INTO authenticators (id, userId, type, payload, validUntil) VALUES (
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${id},
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${user ? user.id : null},
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${type},
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${JSON.stringify(payload)},
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${validForMinutes ? (now() + validForMinutes * 60) : null}
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)`);
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return id;
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}
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const findAuthenticator = async (db, id, type) => {
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const authenticator = await db.get(SQL`SELECT * FROM authenticators
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WHERE id = ${id}
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AND type = ${type}
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AND (validUntil IS NULL OR validUntil > ${now()})
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`);
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if (authenticator) {
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authenticator.payload = JSON.parse(authenticator.payload);
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}
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return authenticator
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}
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const invalidateAuthenticator = async (db, id) => {
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await db.get(SQL`UPDATE authenticators
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SET validUntil = ${now()}
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WHERE id = ${id}
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`);
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}
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const defaultUsername = async (db, email) => {
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const base = email.substring(0, email.includes('@') ? email.indexOf('@') : email.length)
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.padEnd(4, '0')
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.substring(0, 14)
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.replace(new RegExp(`[^${USERNAME_CHARS}]`, 'g'), '_');
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let c = 0;
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while (true) {
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let proposal = base + (c || '');
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let dbUser = await db.get(SQL`SELECT id FROM users WHERE lower(trim(replace(replace(replace(replace(replace(replace(replace(replace(replace(username, 'Ą', 'ą'), 'Ć', 'ć'), 'Ę', 'ę'), 'Ł', 'ł'), 'Ń', 'ń'), 'Ó', 'ó'), 'Ś', 'ś'), 'Ż', 'ż'), 'Ź', 'ż'))) = ${normalise(proposal)}`);
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if (!dbUser) {
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return proposal;
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}
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c++;
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}
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}
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const fetchOrCreateUser = async (db, user, avatarSource = 'gravatar') => {
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let dbUser = await db.get(SQL`SELECT * FROM users WHERE email = ${normalise(user.email)}`);
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if (!dbUser) {
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dbUser = {
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id: ulid(),
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username: await defaultUsername(db, user.name || user.email),
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email: normalise(user.email),
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roles: '',
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avatarSource: avatarSource,
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}
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await db.get(SQL`INSERT INTO users(id, username, email, roles, avatarSource)
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VALUES (${dbUser.id}, ${dbUser.username}, ${dbUser.email}, ${dbUser.roles}, ${dbUser.avatarSource})`)
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}
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dbUser.avatar = await avatar(db, dbUser);
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return dbUser;
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}
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const issueAuthentication = async (db, user) => {
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const dbUser = await fetchOrCreateUser(db, user);
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return jwt.sign({
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...dbUser,
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authenticated: true,
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});
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}
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const validateEmail = async (email) => {
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email = String(email).toLowerCase();
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if (email.endsWith('.oauth')) {
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return;
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}
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const re = /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
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if (!re.test(email)) {
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return false;
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}
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const { Resolver } = require('dns').promises;
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const dns = new Resolver();
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try {
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const addresses = await dns.resolveMx(email.split('@')[1]);
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return addresses.length > 0;
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} catch {
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return false;
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}
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}
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const reloadUser = async (req, res, next) => {
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if (!req.user) {
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next();
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return;
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}
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const dbUser = await req.db.get(SQL`SELECT * FROM users WHERE id = ${req.user.id}`);
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if (!dbUser) {
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res.clearCookie('token');
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next();
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return;
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}
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if (req.user.username !== dbUser.username
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|| req.user.email !== dbUser.email
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|| req.user.roles !== dbUser.roles
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|| req.user.avatarSource !== dbUser.avatarSource
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) {
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const newUser = {
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...dbUser,
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authenticated: true,
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avatar: await avatar(req.db, dbUser),
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};
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const token = jwt.sign(newUser);
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res.cookie('token', token, cookieSettings);
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req.user = {...req.user, ...newUser};
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}
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next();
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}
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const router = Router();
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router.use(reloadUser);
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router.post('/user/init', async (req, res) => {
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let user = undefined;
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let usernameOrEmail = req.body.usernameOrEmail;
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const isEmail = usernameOrEmail.indexOf('@') > -1;
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let isTest = false;
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if (process.env.NODE_ENV === 'development' && usernameOrEmail.endsWith('+')) {
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isTest = true;
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usernameOrEmail = usernameOrEmail.substring(0, usernameOrEmail.length - 1);
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}
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if (isEmail) {
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user = await req.db.get(SQL`SELECT * FROM users WHERE email = ${normalise(usernameOrEmail)}`);
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} else {
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user = await req.db.get(SQL`SELECT * FROM users WHERE lower(trim(replace(replace(replace(replace(replace(replace(replace(replace(replace(username, 'Ą', 'ą'), 'Ć', 'ć'), 'Ę', 'ę'), 'Ł', 'ł'), 'Ń', 'ń'), 'Ó', 'ó'), 'Ś', 'ś'), 'Ż', 'ż'), 'Ź', 'ż'))) = ${normalise(usernameOrEmail)}`);
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}
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if (!user && !isEmail) {
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return res.json({error: 'user.login.userNotFound'})
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}
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const payload = {
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username: isEmail ? (user ? user.username : null) : usernameOrEmail,
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email: isEmail ? normalise(usernameOrEmail) : user.email,
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code: isTest ? '999999' : makeId(6, '0123456789'),
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}
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if (!await validateEmail(payload.email)) {
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return res.json({ error: 'user.account.changeEmail.invalid' })
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}
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const codeKey = await saveAuthenticator(req.db, 'email', user, payload, 15);
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if (!isTest) {
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mailer(
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payload.email,
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`[${translations.title}] ${translations.user.login.email.subject.replace('%code%', payload.code)}`,
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translations.user.login.email.content.replace('%code%', payload.code),
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)
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}
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return res.json({
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token: jwt.sign({...payload, code: null, codeKey}, '15m'),
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});
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});
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router.post('/user/validate', async (req, res) => {
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if (!req.rawUser || !req.rawUser.codeKey) {
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return res.json({error: 'user.tokenExpired'});
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}
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const authenticator = await findAuthenticator(req.db, req.rawUser.codeKey, 'email');
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if (!authenticator) {
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return res.json({error: 'user.tokenExpired'});
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}
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if (authenticator.payload.code !== normalise(req.body.code)) {
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return res.json({error: 'user.code.invalid'});
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}
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await invalidateAuthenticator(req.db, authenticator);
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return res.json({token: await issueAuthentication(req.db, req.rawUser)});
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});
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router.post('/user/change-username', async (req, res) => {
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if (!req.user) {
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return res.status(401).json({error: 'Unauthorised'});
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}
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if (req.body.username.length < 4 || req.body.username.length > 16 || !req.body.username.match(new RegExp(`^[${USERNAME_CHARS}]+$`))) {
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return { error: 'user.account.changeUsername.invalid' }
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}
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const dbUser = await req.db.get(SQL`SELECT * FROM users WHERE lower(trim(replace(replace(replace(replace(replace(replace(replace(replace(replace(username, 'Ą', 'ą'), 'Ć', 'ć'), 'Ę', 'ę'), 'Ł', 'ł'), 'Ń', 'ń'), 'Ó', 'ó'), 'Ś', 'ś'), 'Ż', 'ż'), 'Ź', 'ż'))) = ${normalise(req.body.username)}`);
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if (dbUser) {
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return res.json({ error: 'user.account.changeUsername.taken' })
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}
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await req.db.get(SQL`UPDATE users SET username = ${req.body.username} WHERE id = ${req.user.id}`);
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return res.json({token: await issueAuthentication(req.db, req.user)});
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});
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router.post('/user/change-email', async (req, res) => {
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if (!req.user) {
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return res.status(401).json({error: 'Unauthorised'});
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}
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if (!await validateEmail(req.user.email)) {
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return res.json({ error: 'user.account.changeEmail.invalid' })
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}
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const dbUser = await req.db.get(SQL`SELECT * FROM users WHERE lower(trim(email)) = ${normalise(req.body.email)}`);
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if (dbUser) {
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return res.json({ error: 'user.account.changeEmail.taken' })
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}
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if (!req.body.authId) {
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const payload = {
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from: req.user.email,
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to: normalise(req.body.email),
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code: makeId(6, '0123456789'),
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};
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const authId = await saveAuthenticator(req.db, 'changeEmail', req.user, payload, 15);
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mailer(
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payload.to,
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`[${translations.title}] ${translations.user.login.email.subject.replace('%code%', payload.code)}`,
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translations.user.login.email.content.replace('%code%', payload.code),
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)
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return res.json({ authId });
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}
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const authenticator = await findAuthenticator(req.db, req.body.authId, 'changeEmail');
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if (!authenticator) {
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return res.json({error: 'user.tokenExpired'});
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}
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if (authenticator.payload.code !== normalise(req.body.code)) {
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return res.json({error: 'user.code.invalid'});
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}
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await invalidateAuthenticator(req.db, authenticator);
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await req.db.get(SQL`UPDATE users SET email = ${authenticator.payload.to} WHERE id = ${req.user.id}`);
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req.user.email = authenticator.payload.to;
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return res.json({token: await issueAuthentication(req.db, req.user)});
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});
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router.post('/user/delete', async (req, res) => {
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if (!req.user) {
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return res.status(401).json({error: 'Unauthorised'});
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}
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await req.db.get(SQL`DELETE FROM profiles WHERE userId = ${req.user.id}`)
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await req.db.get(SQL`DELETE FROM authenticators WHERE userId = ${req.user.id}`)
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await req.db.get(SQL`DELETE FROM users WHERE id = ${req.user.id}`)
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return res.json(true);
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});
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router.post('/user/:id/set-roles', async (req, res) => {
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if (!req.isGranted('*')) {
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return res.status(401).json({error: 'Unauthorised'});
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}
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await req.db.get(SQL`UPDATE users SET roles = ${req.body.roles} WHERE id = ${req.params.id}`);
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return res.json('ok');
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});
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router.get('/user/social/:provider', async (req, res) => {
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if (!req.session.grant || !req.session.grant.response || !req.session.grant.response.access_token || !socialLoginHandlers[req.params.provider]) {
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return res.status(400).redirect('/' + config.user.route);
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}
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const payload = socialLoginHandlers[req.params.provider](req.session.grant.response)
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const auth = await req.db.get(SQL`
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SELECT * FROM authenticators
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WHERE type = ${req.params.provider}
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AND payload LIKE ${'{"id":"' + payload.id + '"%'}
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AND (validUntil IS NULL OR validUntil > ${now()})
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`)
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const user = auth ? await req.db.get(SQL`
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SELECT * FROM users
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WHERE id = ${auth.userId}
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`) : req.user;
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const dbUser = await fetchOrCreateUser(req.db, user || {
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email: payload.email || `${payload.id}@${req.params.provider}.oauth`,
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name: payload.name,
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}, req.params.provider);
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const token = jwt.sign({
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...dbUser,
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authenticated: true,
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});
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if (auth) {
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await invalidateAuthenticator(req.db, auth.id);
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}
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await saveAuthenticator(req.db, req.params.provider, dbUser, payload);
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return res.cookie('token', token).redirect('/' + config.user.route);
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});
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router.get('/user/social-connections', async (req, res) => {
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if (!req.user) {
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return res.status(401).json({error: 'Unauthorised'});
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}
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const authenticators = await req.db.all(SQL`
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SELECT type, payload FROM authenticators
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WHERE type IN (`.append(Object.keys(socialLoginConfig).map(k => `'${k}'`).join(',')).append(SQL`)
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AND userId = ${req.user.id}
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AND (validUntil IS NULL OR validUntil > ${now()})
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`));
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return res.json(buildDict(function* () {
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for (let auth of authenticators) {
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yield [auth.type, JSON.parse(auth.payload)];
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}
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}));
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});
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router.post('/user/social-connection/:provider/disconnect', async (req, res) => {
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if (!req.user) {
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return res.status(401).json({error: 'Unauthorised'});
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}
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const auth = await req.db.get(SQL`
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SELECT id FROM authenticators
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WHERE type = ${req.params.provider}
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AND userId = ${req.user.id}
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AND (validUntil IS NULL OR validUntil > ${now()})
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`)
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await invalidateAuthenticator(req.db, auth.id)
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return res.json('ok');
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});
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router.post('/user/set-avatar', async (req, res) => {
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if (!req.user) {
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return res.status(401).json({error: 'Unauthorised'});
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}
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await req.db.get(SQL`
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UPDATE users
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SET avatarSource = ${req.body.source || null}
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WHERE id = ${req.user.id}
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`)
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return res.json({token: await issueAuthentication(req.db, req.user)});
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});
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export default router;
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