| 1 | const config = require('../lib/config'); |
| 2 | const auth = require('../lib/auth'); |
| 3 | const limit = require('../lib/limit'); |
| 4 | const data = require('../lib/data'); |
| 5 | const respond = require('../lib/respond'); |
| 6 | const validate = require('../lib/validate'); |
| 7 | |
| 8 | const loginLimiter = limit.make( |
| 9 | config.get('limits.login.max'), |
| 10 | config.get('limits.login.windowMin') * 60000 |
| 11 | ); |
| 12 | const signupLimiter = limit.make( |
| 13 | config.get('limits.signup.max'), |
| 14 | config.get('limits.signup.windowMin') * 60000 |
| 15 | ); |
| 16 | const writeLimiter = limit.make( |
| 17 | config.get('limits.write.max'), |
| 18 | config.get('limits.write.windowMin') * 60000 |
| 19 | ); |
| 20 | |
| 21 | function signup(req, res) { |
| 22 | const ip = respond.clientIp(req); |
| 23 | if (!signupLimiter(ip)) return respond.tooMany(res); |
| 24 | if (!config.get('auth.allowSignup')) return respond.forbidden(res, 'Signup is disabled'); |
| 25 | respond.readJson(req, (err, body) => { |
| 26 | if (err) return respond.badRequest(res, err.message); |
| 27 | const username = String(body.username || '').toLowerCase().trim(); |
| 28 | const password = String(body.password || ''); |
| 29 | if (!validate.isValidName(username)) return respond.badRequest(res, 'Invalid username'); |
| 30 | if (validate.isReservedName(username)) return respond.badRequest(res, 'Username reserved'); |
| 31 | if (password.length < 8) return respond.badRequest(res, 'Password too short (min 8 chars)'); |
| 32 | const users = data.users(); |
| 33 | if (users.has(username)) return respond.json(res, 409, { error: 'Username taken' }); |
| 34 | const record = { |
| 35 | username, |
| 36 | ...auth.createPasswordRecord(password), |
| 37 | displayName: validate.nonEmptyString(body.displayName, 64) |
| 38 | ? String(body.displayName).slice(0, 64) |
| 39 | : username, |
| 40 | bio: '', |
| 41 | createdAt: Date.now() |
| 42 | }; |
| 43 | users.set(username, record); |
| 44 | auth.setSessionCookie(res, username); |
| 45 | respond.json(res, 201, { ok: true, username }); |
| 46 | }); |
| 47 | } |
| 48 | |
| 49 | function login(req, res) { |
| 50 | const ip = respond.clientIp(req); |
| 51 | if (!loginLimiter(ip)) return respond.tooMany(res, 'Too many login attempts, try later'); |
| 52 | respond.readJson(req, (err, body) => { |
| 53 | if (err) return respond.badRequest(res, err.message); |
| 54 | const username = String(body.username || '').toLowerCase().trim(); |
| 55 | const password = String(body.password || ''); |
| 56 | const user = data.users().get(username); |
| 57 | if (!user || !auth.verifyPassword(password, user)) { |
| 58 | return respond.json(res, 401, { error: 'Invalid username or password' }); |
| 59 | } |
| 60 | auth.setSessionCookie(res, username); |
| 61 | respond.json(res, 200, { ok: true, username }); |
| 62 | }); |
| 63 | } |
| 64 | |
| 65 | function logout(_req, res) { |
| 66 | auth.clearSessionCookie(res); |
| 67 | respond.json(res, 200, { ok: true }); |
| 68 | } |
| 69 | |
| 70 | function me(req, res) { |
| 71 | const session = auth.getSession(req); |
| 72 | if (!session) return respond.json(res, 200, { user: null }); |
| 73 | const user = data.users().get(session.username); |
| 74 | if (!user) return respond.json(res, 200, { user: null }); |
| 75 | respond.json(res, 200, { |
| 76 | user: { |
| 77 | username: user.username, |
| 78 | displayName: user.displayName, |
| 79 | bio: user.bio, |
| 80 | createdAt: user.createdAt, |
| 81 | isAdmin: session.username === config.get('admin.user') |
| 82 | } |
| 83 | }); |
| 84 | } |
| 85 | |
| 86 | function changePassword(req, res) { |
| 87 | const session = auth.requireAuth(req, res); |
| 88 | if (!session) return; |
| 89 | const ip = respond.clientIp(req); |
| 90 | if (!writeLimiter(ip)) return respond.tooMany(res); |
| 91 | respond.readJson(req, (err, body) => { |
| 92 | if (err) return respond.badRequest(res, err.message); |
| 93 | const current = String(body.current || ''); |
| 94 | const next = String(body.password || ''); |
| 95 | if (next.length < 8) return respond.badRequest(res, 'Password too short (min 8 chars)'); |
| 96 | const users = data.users(); |
| 97 | const user = users.get(session.username); |
| 98 | if (!user || !auth.verifyPassword(current, user)) { |
| 99 | return respond.json(res, 401, { error: 'Current password incorrect' }); |
| 100 | } |
| 101 | users.set(session.username, { ...user, ...auth.createPasswordRecord(next) }); |
| 102 | respond.json(res, 200, { ok: true }); |
| 103 | }); |
| 104 | } |
| 105 | |
| 106 | function updateProfile(req, res) { |
| 107 | const session = auth.requireAuth(req, res); |
| 108 | if (!session) return; |
| 109 | respond.readJson(req, (err, body) => { |
| 110 | if (err) return respond.badRequest(res, err.message); |
| 111 | const users = data.users(); |
| 112 | const user = users.get(session.username); |
| 113 | if (!user) return respond.notFound(res); |
| 114 | const updated = { ...user }; |
| 115 | if (validate.nonEmptyString(body.displayName, 64)) { |
| 116 | updated.displayName = String(body.displayName).slice(0, 64); |
| 117 | } |
| 118 | if (typeof body.bio === 'string') { |
| 119 | updated.bio = body.bio.slice(0, 256); |
| 120 | } |
| 121 | users.set(session.username, updated); |
| 122 | respond.json(res, 200, { ok: true }); |
| 123 | }); |
| 124 | } |
| 125 | |
| 126 | module.exports = function register(router) { |
| 127 | router.post('/api/signup', signup); |
| 128 | router.post('/api/login', login); |
| 129 | router.post('/api/logout', logout); |
| 130 | router.get('/api/me', me); |
| 131 | router.post('/api/me/password', changePassword); |
| 132 | router.post('/api/me/profile', updateProfile); |
| 133 | }; |
| 134 | |
