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oliver
ad0cc98b38
Super/fallback can toggle view-all (default on); admin/user stay own-only while still seeing unowned system sessions. Add restore/prune helpers so empty-shell cleanup is explicit and recoverable.
423 lines
13 KiB
JavaScript
423 lines
13 KiB
JavaScript
/**
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* uds-auth 角色存储 + 权限管理
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*
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* 角色:
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* super_admin 所有权限 + 用户管理；默认可见全部会话（可在设置中关闭）
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* fallback_admin 等同 super_admin（兜底 administrator）
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* admin 无设置齿轮；仅看自己会话（含 @）；可见渠道/系统会话
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* user 仅看自己会话，无设置
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*
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* 超管/应急默认全览开启；prefs.viewAllSessions === false 时关闭。
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* 设置齿轮仅超管/应急（canAccessSettings）。
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* 持久化: roles.json (roles + prefs + fallbackPasswordHash)
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*/
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import { createHash, randomBytes } from 'node:crypto'
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import { readFile, writeFile, mkdir } from 'node:fs/promises'
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import { dirname, resolve } from 'node:path'
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import { ROLE_LABELS_ZH } from './i18n.js'
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function codedError(code) {
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const err = new Error(code)
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err.code = code
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return err
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}
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export const ROLES = {
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SUPER_ADMIN: 'super_admin',
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ADMIN: 'admin',
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USER: 'user',
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FALLBACK_ADMIN: 'fallback_admin', // 特殊，UAC 挂了时用，等同 super_admin 权限
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}
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/** zh labels for list/search; UI should translate via i18n role.* keys. */
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export const ROLE_LABELS = ROLE_LABELS_ZH
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/**
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* 计算角色权限 (纯函数)
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* @param {string} role
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* @param {{ viewAllSessions?: boolean }} [opts] 个人偏好；超管默认可见全部
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*/
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export function computePermissions(role, opts = {}) {
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const viewAll = !!opts.viewAllSessions
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switch (role) {
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case ROLES.SUPER_ADMIN:
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return {
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canManageUsers: true,
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canAccessSettings: true,
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canToggleViewAllSessions: true,
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canViewAllSessions: viewAll,
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canViewSystemSessions: true,
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canCreateWorkspace: true,
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}
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case ROLES.FALLBACK_ADMIN:
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return {
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canManageUsers: true,
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canAccessSettings: true,
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canToggleViewAllSessions: true,
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canViewAllSessions: viewAll,
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canViewSystemSessions: true,
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canCreateWorkspace: true,
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}
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case ROLES.ADMIN:
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return {
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canManageUsers: false,
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// 设置齿轮仅超管/应急；admin 仍可看渠道/系统会话
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canAccessSettings: false,
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canToggleViewAllSessions: false,
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canViewAllSessions: false,
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canViewSystemSessions: true,
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canCreateWorkspace: false,
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}
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default: // user / undefined
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return {
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canManageUsers: false,
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canAccessSettings: false,
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canToggleViewAllSessions: false,
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canViewAllSessions: false,
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canViewSystemSessions: false,
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canCreateWorkspace: false,
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}
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}
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}
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/** 角色是否允许开启「查看全部会话」（仅超管 / 应急） */
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export function canToggleViewAllSessions(role) {
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return role === ROLES.SUPER_ADMIN
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|| role === ROLES.FALLBACK_ADMIN
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}
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function hashPassword(password) {
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return createHash('sha256').update(password).digest('hex')
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}
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/** 初始部署默认兜底密码（扫码不可用时用）；可在设置里改密或关闭。 */
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export const DEFAULT_FALLBACK_PASSWORD = 'Admin@123'
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export const DEFAULT_FALLBACK_USERNAME = 'administrator'
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/**
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* RolesStore — 角色存储
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* 内存 Map + 可选 JSON 文件持久化
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*
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* fallback admin: 默认启用，密码 Admin@123；roles.json 显式 null 表示已关闭。
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* 登录路径: POST /uds-auth/api/fallback/login { username, password }
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*/
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export class RolesStore {
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constructor(options = {}) {
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this._roles = new Map() // empNo → role
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this._prefs = new Map() // empNo → { viewAllSessions?: boolean }
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this._firstBootLock = Promise.resolve()
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this._rolesFile = options.rolesFile ? resolve(options.rolesFile) : null
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this._fallbackPasswordHash = null // SHA-256 hex，null = 未启用
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this._fallbackRateLimit = new Map() // ip → { count, resetAt }
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this._dirty = false
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this._saveTimer = null
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}
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_ensureDefaultFallback() {
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if (this._fallbackPasswordHash) return
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this._fallbackPasswordHash = hashPassword(DEFAULT_FALLBACK_PASSWORD)
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this._markDirty()
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console.info(
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'[uds-auth] fallback_admin enabled by default'
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+ ` (user=${DEFAULT_FALLBACK_USERNAME}, change password in settings)`,
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)
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}
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// === 持久化 ===
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async init() {
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let loadedHash = undefined // undefined = missing / new file; null = explicitly cleared
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if (this._rolesFile) {
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try {
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const raw = await readFile(this._rolesFile, 'utf-8')
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const data = JSON.parse(raw)
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for (const [empNo, role] of Object.entries(data.roles || {})) {
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this._roles.set(empNo, role)
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}
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for (const [empNo, prefs] of Object.entries(data.prefs || {})) {
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if (prefs && typeof prefs === 'object') {
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this._prefs.set(String(empNo), { ...prefs })
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}
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}
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if (Object.prototype.hasOwnProperty.call(data, 'fallbackPasswordHash')) {
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loadedHash = data.fallbackPasswordHash || null
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if (loadedHash) this._fallbackPasswordHash = loadedHash
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}
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} catch (err) {
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if (err.code === 'ENOENT') {
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// 首次启动，文件不存在 — 走默认兜底
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} else {
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console.warn('[uds-auth:RolesStore] Failed to load roles file:', err.message)
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}
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}
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}
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// 无持久化哈希（新部署或旧文件未写该字段）→ 默认开启；显式 null 表示超管已关闭
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if (loadedHash === undefined && !this._fallbackPasswordHash) {
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this._ensureDefaultFallback()
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}
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}
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_markDirty() {
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this._dirty = true
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if (this._saveTimer) return
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this._saveTimer = setTimeout(() => { void this._save() }, 2000)
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}
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/** Flush pending roles/prefs to disk immediately (e.g. view-all toggle). */
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async flush() {
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if (this._saveTimer) {
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clearTimeout(this._saveTimer)
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this._saveTimer = null
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}
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await this._save()
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}
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async _save() {
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this._saveTimer = null
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if (!this._dirty || !this._rolesFile) return
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this._dirty = false
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try {
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const data = {
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roles: Object.fromEntries(this._roles),
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prefs: Object.fromEntries(this._prefs),
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fallbackPasswordHash: this._fallbackPasswordHash,
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savedAt: new Date().toISOString(),
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}
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await mkdir(dirname(this._rolesFile), { recursive: true })
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await writeFile(this._rolesFile, JSON.stringify(data, null, 2), 'utf-8')
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} catch (err) {
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this._dirty = true
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console.warn('[uds-auth:RolesStore] Failed to save roles file:', err.message)
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}
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// Changes during await writeFile — schedule another save.
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if (this._dirty) this._markDirty()
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}
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// === 首次部署 bootstrap ===
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/**
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* 原子 check-and-set: 第一个登录的用户 = super_admin
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* 返回 { role, bootstrapped } bootstrapped=true 表示本次是 bootstrap
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*/
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async bootstrapFirstUser(empNo) {
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// 用锁保证原子性
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this._firstBootLock = this._firstBootLock.then(async () => {
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if (this._roles.size === 0) {
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this._roles.set(empNo, ROLES.SUPER_ADMIN)
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this._markDirty()
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return { role: ROLES.SUPER_ADMIN, bootstrapped: true }
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}
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if (!this._roles.has(empNo)) {
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this._roles.set(empNo, ROLES.USER)
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this._markDirty()
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return { role: ROLES.USER, bootstrapped: false }
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}
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return { role: this._roles.get(empNo), bootstrapped: false }
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})
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return this._firstBootLock
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}
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// === 角色查询 ===
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getRole(empNo) {
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if (empNo === 'administrator') return ROLES.FALLBACK_ADMIN
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return this._roles.get(empNo) || ROLES.USER
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}
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/**
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* 个人偏好：超管/应急默认开启查看全部；显式 false 才关闭。
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* admin/user 不会走到这里（resolvePermissions 里 allowToggle=false）。
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*/
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isViewAllSessionsEnabled(empNo) {
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if (!empNo) return false
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const prefs = this._prefs.get(String(empNo))
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if (prefs && Object.prototype.hasOwnProperty.call(prefs, 'viewAllSessions')) {
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return !!prefs.viewAllSessions
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}
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return true
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}
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/**
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* 设置「查看全部会话」偏好（调用方需校验 canToggleViewAllSessions）
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* @param {string} empNo
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* @param {boolean} enabled
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*/
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setViewAllSessions(empNo, enabled) {
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const key = String(empNo || '').trim()
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if (!key) throw codedError('emp_no_required')
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const role = this.getRole(key)
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if (!canToggleViewAllSessions(role)) {
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throw codedError('forbidden_view_all_sessions')
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}
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const cur = { ...(this._prefs.get(key) || {}) }
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// Persist explicit true/false — deleting the key would fall back to default-on.
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cur.viewAllSessions = !!enabled
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this._prefs.set(key, cur)
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this._markDirty()
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return true
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}
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/** 角色 + 个人偏好 → 有效权限 */
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resolvePermissions(empNo, role) {
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const id = empNo != null ? String(empNo) : ''
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const r = role || this.getRole(id)
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const allowToggle = canToggleViewAllSessions(r)
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return computePermissions(r, {
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viewAllSessions: allowToggle && this.isViewAllSessionsEnabled(id),
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})
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}
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hasRole(empNo) {
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return this._roles.has(empNo)
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}
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getAll() {
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return Array.from(this._roles.entries()).map(([empNo, role]) => ({ empNo, role }))
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}
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/** 角色表是否为空（用于 bootstrap） */
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isEmpty() {
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return this._roles.size === 0
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}
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/**
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* 分页 + 工号模糊搜索（上千用户场景）
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* @param {{ page?: number, pageSize?: number, q?: string }} opts
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*/
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listPage(opts = {}) {
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const page = Math.max(1, Number(opts.page) || 1)
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const pageSize = Math.min(200, Math.max(1, Number(opts.pageSize) || 50))
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const q = String(opts.q || '').trim().toLowerCase()
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let rows = Array.from(this._roles.entries()).map(([empNo, role]) => ({ empNo, role }))
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if (q) {
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rows = rows.filter((r) => String(r.empNo).toLowerCase().includes(q)
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|| String(ROLE_LABELS[r.role] || r.role).toLowerCase().includes(q))
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}
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rows.sort((a, b) => String(a.empNo).localeCompare(String(b.empNo), 'zh'))
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const total = rows.length
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const start = (page - 1) * pageSize
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const users = rows.slice(start, start + pageSize).map(({ empNo, role }) => ({
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empNo,
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role,
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roleLabel: ROLE_LABELS[role] || role,
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}))
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return {
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users,
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total,
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page,
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pageSize,
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totalPages: Math.max(1, Math.ceil(total / pageSize)),
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}
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}
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async countByRole(role) {
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let n = 0
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for (const r of this._roles.values()) if (r === role) n++
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return n
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}
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// === 角色管理 (super_admin only) ===
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/**
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* 设置用户角色
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* 保护性 invariant: 至少保留 1 个 super_admin
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*/
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async setRole(empNo, newRole, currentAdminRole) {
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if (currentAdminRole !== ROLES.SUPER_ADMIN) {
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throw codedError('forbidden_set_role')
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}
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// invariant: 不能让系统变成 0 个 super_admin
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const currentRole = this._roles.get(empNo)
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if (currentRole === ROLES.SUPER_ADMIN && newRole !== ROLES.SUPER_ADMIN) {
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const superAdmins = await this.countByRole(ROLES.SUPER_ADMIN)
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if (superAdmins <= 1) {
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throw codedError('last_super_admin_demote')
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}
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}
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this._roles.set(empNo, newRole)
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this._markDirty()
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return true
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}
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/** 删除用户 */
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async removeUser(empNo, currentAdminRole) {
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if (currentAdminRole !== ROLES.SUPER_ADMIN) {
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throw codedError('forbidden_remove_user')
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}
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const currentRole = this._roles.get(empNo)
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if (currentRole === ROLES.SUPER_ADMIN) {
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const superAdmins = await this.countByRole(ROLES.SUPER_ADMIN)
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if (superAdmins <= 1) {
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throw codedError('last_super_admin_delete')
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}
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}
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this._roles.delete(empNo)
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this._prefs.delete(empNo)
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this._markDirty()
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return true
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}
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/** 确保用户存在 (如果不存在设为 user) */
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ensureUser(empNo, currentAdminRole) {
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if (currentAdminRole !== ROLES.SUPER_ADMIN) {
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throw codedError('forbidden_add_user')
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}
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if (!this._roles.has(empNo)) {
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this._roles.set(empNo, ROLES.USER)
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this._markDirty()
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}
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return true
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}
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// === Fallback Administrator ===
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setFallbackPassword(password, currentAdminRole) {
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if (currentAdminRole !== ROLES.SUPER_ADMIN && currentAdminRole !== ROLES.FALLBACK_ADMIN) {
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throw codedError('forbidden_set_fallback')
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}
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if (!password || password.length < 6) {
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throw codedError('password_too_short')
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}
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this._fallbackPasswordHash = hashPassword(password)
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this._markDirty()
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return true
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}
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clearFallbackPassword(currentAdminRole) {
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if (currentAdminRole !== ROLES.SUPER_ADMIN && currentAdminRole !== ROLES.FALLBACK_ADMIN) {
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throw codedError('forbidden_clear_fallback')
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}
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this._fallbackPasswordHash = null
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this._markDirty()
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return true
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}
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isFallbackEnabled() {
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return this._fallbackPasswordHash !== null
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}
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/**
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* 验证 fallback 密码 + rate limit
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* @returns {boolean}
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*/
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verifyFallback(password, ip) {
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if (!this._fallbackPasswordHash) return false
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const now = Date.now()
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// rate limit: 5 tries per minute per IP
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let bucket = this._fallbackRateLimit.get(ip)
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if (!bucket || now > bucket.resetAt) {
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bucket = { count: 0, resetAt: now + 60_000 }
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this._fallbackRateLimit.set(ip, bucket)
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}
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bucket.count++
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if (bucket.count > 5) {
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return false // rate limited
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}
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return hashPassword(password) === this._fallbackPasswordHash
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}
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}
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