릴리스: v1.4.33 가입 검증과 테마 기본값 정리

backend/src/routes/auth.js

@@ -6,6 +6,7 @@ const multer = require('multer')
 const {
   countUsers,
   findUserByEmail,
+  findUserByNickname,
   findUserById,
   createUser,
   updateUserProfile,
@@ -13,11 +14,13 @@ const {
 } = require('../db')
 const { requireAuth } = require('../middleware/auth')
 const { createMemoryUpload, writeOptimizedImage } = require('../lib/image-storage')
+const { isReservedNickname } = require('../lib/user-validation')
 
 const router = express.Router()
 
 const signupSchema = z.object({
   email: z.string().email(),
+  nickname: z.string().trim().min(2).max(40),
   password: z.string().min(6),
 })
 
@@ -62,13 +65,16 @@ router.post('/signup', async (req, res) => {
   const parsed = signupSchema.safeParse(req.body)
   if (!parsed.success) return res.status(400).json({ error: 'bad_request' })
 
-  const { email, password } = parsed.data
+  const { email, nickname, password } = parsed.data
   const exists = await findUserByEmail(email)
   if (exists) return res.status(409).json({ error: 'email_taken' })
+  if (isReservedNickname(nickname)) return res.status(400).json({ error: 'nickname_reserved' })
+  const nicknameExists = await findUserByNickname(nickname)
+  if (nicknameExists) return res.status(409).json({ error: 'nickname_taken' })
 
   const passwordHash = await bcrypt.hash(password, 10)
   const isAdmin = (await countUsers()) === 0
-  const user = await createUser({ id: nanoid(), email, nickname: '', passwordHash, isAdmin })
+  const user = await createUser({ id: nanoid(), email, nickname, passwordHash, isAdmin })
 
   try {
     await establishSession(req, user)
@@ -79,7 +85,10 @@ router.post('/signup', async (req, res) => {
 })
 
 router.post('/login', async (req, res) => {
-  const parsed = signupSchema.safeParse(req.body)
+  const parsed = z.object({
+    email: z.string().email(),
+    password: z.string().min(6),
+  }).safeParse(req.body)
   if (!parsed.success) return res.status(400).json({ error: 'bad_request' })
 
   const { email, password } = parsed.data
@@ -121,6 +130,9 @@ router.post('/profile', requireAuth, upload.single('avatar'), async (req, res) =
 
   const user = await findUserById(req.session.userId)
   if (!user) return res.status(404).json({ error: 'not_found' })
+  if (isReservedNickname(parsed.data.nickname)) return res.status(400).json({ error: 'nickname_reserved' })
+  const nicknameExists = await findUserByNickname(parsed.data.nickname, user.id)
+  if (nicknameExists) return res.status(409).json({ error: 'nickname_taken' })
 
   const optimized = req.file
     ? await writeOptimizedImage({