feat: add admin password reset

server/db.test.ts

@@ -2,8 +2,8 @@ import { afterEach, describe, expect, it, setSystemTime } from 'bun:test'
 import { createEmptyBook, createEmptyTeachingDesign } from '../src/domain/teachingDesign'
 import {
   createBook, deleteBook, getBook, listBooks, openDb, renameBook, saveBookData,
-  createUser, findUserByUsername, findUserById, listUsers, deleteUser,
-  createRefreshToken, findRefreshTokenByHash, deleteRefreshTokenByHash,
+  createUser, findUserByUsername, findUserById, listUsers, deleteUser, updateUserPasswordHash,
+  createRefreshToken, findRefreshTokenByHash, deleteRefreshTokenByHash, deleteRefreshTokensForUser,
 } from './db'
 
 afterEach(() => {
@@ -143,6 +143,19 @@ describe('users and refresh tokens', () => {
     expect(deleteUser(db, 'missing')).toBe(false)
   })
 
+  it('updates a user password hash', () => {
+    const db = openDb(':memory:')
+    const user = createUser(db, { username: 'frank', passwordHash: 'old-hash', role: 'user' })
+
+    expect(updateUserPasswordHash(db, user.id, 'new-hash')).toBe(true)
+    expect(findUserById(db, user.id)?.passwordHash).toBe('new-hash')
+  })
+
+  it('returns false when updating password hash for missing user', () => {
+    const db = openDb(':memory:')
+    expect(updateUserPasswordHash(db, 'missing', 'new-hash')).toBe(false)
+  })
+
   it('creates and finds a refresh token by hash', () => {
     const db = openDb(':memory:')
     const user = createUser(db, { username: 'dave', passwordHash: 'h', role: 'user' })
@@ -159,4 +172,16 @@ describe('users and refresh tokens', () => {
     expect(deleteRefreshTokenByHash(db, 'xyz')).toBe(true)
     expect(findRefreshTokenByHash(db, 'xyz')).toBeNull()
   })
+
+  it('deletes refresh tokens for one user', () => {
+    const db = openDb(':memory:')
+    const first = createUser(db, { username: 'grace', passwordHash: 'h', role: 'user' })
+    const second = createUser(db, { username: 'heidi', passwordHash: 'h', role: 'user' })
+    createRefreshToken(db, { userId: first.id, tokenHash: 'first-token', expiresAt: '2099-01-01T00:00:00.000Z' })
+    createRefreshToken(db, { userId: second.id, tokenHash: 'second-token', expiresAt: '2099-01-01T00:00:00.000Z' })
+
+    expect(deleteRefreshTokensForUser(db, first.id)).toBe(1)
+    expect(findRefreshTokenByHash(db, 'first-token')).toBeNull()
+    expect(findRefreshTokenByHash(db, 'second-token')).not.toBeNull()
+  })
 })

server/db.ts

@@ -206,6 +206,11 @@ export function deleteUser(db: Database, id: string): boolean {
   return result.changes > 0
 }
 
+export function updateUserPasswordHash(db: Database, id: string, passwordHash: string): boolean {
+  const result = db.run('UPDATE users SET password_hash = ? WHERE id = ?', [passwordHash, id])
+  return result.changes > 0
+}
+
 export function createRefreshToken(
   db: Database,
   params: { userId: string; tokenHash: string; expiresAt: string },
@@ -233,3 +238,8 @@ export function deleteRefreshTokenByHash(db: Database, tokenHash: string): boole
   const result = db.run('DELETE FROM refresh_tokens WHERE token_hash = ?', [tokenHash])
   return result.changes > 0
 }
+
+export function deleteRefreshTokensForUser(db: Database, userId: string): number {
+  const result = db.run('DELETE FROM refresh_tokens WHERE user_id = ?', [userId])
+  return result.changes
+}

server/routes/admin.test.ts

@@ -1,8 +1,8 @@
 import { beforeEach, describe, expect, it } from 'bun:test'
 import type { Database } from 'bun:sqlite'
 import { Hono } from 'hono'
-import { hashPassword, signAccessToken } from '../auth'
-import { createUser, openDb } from '../db'
+import { hashPassword, signAccessToken, verifyPassword } from '../auth'
+import { createRefreshToken, createUser, findRefreshTokenByHash, findUserById, openDb } from '../db'
 import { createAdminRouter } from './admin'
 
 const JWT_SECRET = 'test-secret'
@@ -95,4 +95,41 @@ describe('admin routes', () => {
     })
     expect(res.status).toBe(404)
   })
+
+  it('resets a user password to the fixed temporary password', async () => {
+    createRefreshToken(db, { userId, tokenHash: 'user-refresh-token', expiresAt: '2099-01-01T00:00:00.000Z' })
+
+    const res = await app.request(`/api/admin/users/${userId}/reset-password`, {
+      method: 'POST',
+      headers: { Authorization: `Bearer ${adminToken}` },
+    })
+
+    expect(res.status).toBe(200)
+    expect(await res.json()).toEqual({ ok: true })
+
+    const updated = findUserById(db, userId)
+    expect(updated).not.toBeNull()
+    expect(await verifyPassword('123456', updated!.passwordHash)).toBe(true)
+    expect(await verifyPassword('userpass', updated!.passwordHash)).toBe(false)
+    expect(findRefreshTokenByHash(db, 'user-refresh-token')).toBeNull()
+  })
+
+  it('returns 404 when resetting password for missing user', async () => {
+    const res = await app.request('/api/admin/users/missing/reset-password', {
+      method: 'POST',
+      headers: { Authorization: `Bearer ${adminToken}` },
+    })
+
+    expect(res.status).toBe(404)
+    expect(await res.json()).toEqual({ error: '用户不存在' })
+  })
+
+  it('returns 403 when non-admin resets a password', async () => {
+    const res = await app.request(`/api/admin/users/${adminId}/reset-password`, {
+      method: 'POST',
+      headers: { Authorization: `Bearer ${userToken}` },
+    })
+
+    expect(res.status).toBe(403)
+  })
 })

server/routes/admin.ts

@@ -1,9 +1,11 @@
 import type { Database } from 'bun:sqlite'
 import { Hono } from 'hono'
 import { hashPassword } from '../auth'
-import { createUser, deleteUser, listUsers } from '../db'
+import { createUser, deleteRefreshTokensForUser, deleteUser, findUserById, listUsers, updateUserPasswordHash } from '../db'
 import { bearerAuth, type AuthVariables } from '../middleware/bearerAuth'
 
+const RESET_PASSWORD = '123456'
+
 export function createAdminRouter(db: Database, jwtSecret: string) {
   const app = new Hono<{ Variables: AuthVariables }>()
 
@@ -39,6 +41,18 @@ export function createAdminRouter(db: Database, jwtSecret: string) {
     return c.json({ id: user.id, username: user.username, role: user.role, createdAt: user.createdAt })
   })
 
+  app.post('/users/:id/reset-password', async (c) => {
+    const targetId = c.req.param('id')
+    if (!findUserById(db, targetId)) {
+      return c.json({ error: '用户不存在' }, 404)
+    }
+
+    const passwordHash = await hashPassword(RESET_PASSWORD)
+    updateUserPasswordHash(db, targetId, passwordHash)
+    deleteRefreshTokensForUser(db, targetId)
+    return c.json({ ok: true })
+  })
+
   app.delete('/users/:id', (c) => {
     const targetId = c.req.param('id')
     if (targetId === c.get('userId')) {