feat(auth): 统一 X-Server-Key 全路径鉴权(防扫描探测)+ per-IP 滑动窗口限流
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@@ -74,19 +74,22 @@ pnpm typecheck # 仅类型检查,不运行
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`/url` 在外部音源与平台直连都失败时,自动降级到**酷我**兜底:按歌名/歌手/时长匹配同一首歌后走 kw 通道(匿名可拿无损)。kg 可由 hash 反查歌曲信息;其它平台需要兜底时给 `/url` 传 `name`/`singer`/`interval` 查询参数。
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## 调用鉴权(AUTH_KEY)
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## 调用鉴权与限流
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设置环境变量 `AUTH_KEY` 后,全部业务接口要求携带调用秘钥(未设置则不鉴权):
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### 调用秘钥(AUTH_KEY)
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设置环境变量 `AUTH_KEY` 后,**全部路径**(含文档页、健康检查、不存在的路径)都要求调用秘钥——未授权请求统一返回 401,不暴露 404/401 差异,防止接口被扫描探测。未设置则不鉴权。
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```
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Authorization: Bearer <AUTH_KEY> # 亦接受裸值
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X-Api-Key: <AUTH_KEY>
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?key=<AUTH_KEY> # 查询参数(播放器直接拉流场景)
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X-Server-Key: <AUTH_KEY> # 统一验证头
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?key=<AUTH_KEY> # 仅 /stream/* 流代理接受(播放器拉流无法带自定义头)
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```
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豁免路径:`/health`、`/`、`/docs`、`/redoc`、`/openapi.json`。秘钥错误返回 401。
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启用鉴权时 `/url` 返回的代理流地址(如 qs 解密流)会自动附带 `?key=`,播放器可直接拉流。
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启用鉴权时 `/url` 返回的代理流地址(如 qs 解密流)会自动附带 `?key=`。
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### 限流(RATE_LIMIT)
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per-IP 滑动窗口限流,`RATE_LIMIT` 为每 IP 每分钟允许的请求数(默认 120,设 0 关闭)。超限返回 429 + Retry-After;鉴权失败的请求同样计数(防秘钥爆破)。
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## 外部音源
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+10
-21
@@ -1,15 +1,11 @@
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// 全局调用秘钥鉴权 —— AUTH_KEY 环境变量启用(未设置则完全不鉴权)
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// 客户端携带方式(任一即可):
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// Authorization: Bearer <AUTH_KEY>(也接受裸值不带 Bearer 前缀)
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// X-Api-Key: <AUTH_KEY>
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// ?key=<AUTH_KEY>(查询参数,兼容播放器/下载器直接拉流无法带自定义头的场景)
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// 豁免:/health、文档(/、/docs*、/redoc、/openapi.json)与 CORS 预检
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// 验证头统一为 X-Server-Key: <AUTH_KEY>;全部路径(含文档页/健康检查/404)都要求秘钥,
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// 未授权请求一律 401,避免被扫描器区分出接口存在性(404/401 差异)。
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// 唯一例外:/stream/* 代理流额外接受 ?key=(播放器直接拉流无法携带自定义头)。
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// CORS 预检(OPTIONS)无响应体、不泄露内容,豁免。
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import crypto from 'node:crypto'
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import type { FastifyRequest, FastifyReply } from 'fastify'
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// 无敏感信息且会被监控系统高频探测的路径豁免鉴权
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const PUBLIC_PATHS = [/^\/health$/, /^\/$/, /^\/docs(\/|$)/, /^\/redoc$/, /^\/openapi\.json$/]
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const safeEqual = (a: string, b: string) => {
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const bufA = Buffer.from(a)
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const bufB = Buffer.from(b)
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@@ -19,22 +15,15 @@ const safeEqual = (a: string, b: string) => {
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export const registerAuth = (fastify: any, authKey: string) => {
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fastify.addHook('onRequest', async(request: FastifyRequest, reply: FastifyReply) => {
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if (request.method === 'OPTIONS') return
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// /stream/* 流媒体代理:X-Server-Key 或 ?key=(播放器拉流兼容)
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const pathname = new URL(request.url, 'http://localhost').pathname
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if (PUBLIC_PATHS.some(re => re.test(pathname))) return
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const authorization = String(request.headers.authorization || '')
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const bearer = authorization.startsWith('Bearer ') ? authorization.slice(7).trim() : authorization.trim()
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const provided = [
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bearer,
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String(request.headers['x-api-key'] || ''),
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String((request.query as any)?.key || ''),
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].find(Boolean)
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const provided = pathname.startsWith('/stream/')
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? (String(request.headers['x-server-key'] || '') || String((request.query as any)?.key || ''))
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: String(request.headers['x-server-key'] || '')
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if (!provided || !safeEqual(provided, authKey)) {
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return reply.code(401).send({
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code: 401,
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msg: '无效或缺少调用秘钥:请在 Authorization: Bearer <key>、X-Api-Key 头或 ?key= 参数中携带',
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})
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// 统一 401 文案(不区分路径存在与否,防扫描探测)
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return reply.code(401).send({ code: 401, msg: '无效或缺少调用秘钥:请在 X-Server-Key 请求头携带(流代理可用 ?key=)' })
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}
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})
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}
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@@ -0,0 +1,36 @@
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// 全局限流 —— per-IP 滑动窗口(内存实现,无额外依赖)
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// RATE_LIMIT 环境变量:每 IP 每分钟允许的请求数(默认 120;设 0 关闭)。
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// 在鉴权之前计数(401 爆破秘钥同样受限);超限返回 429 + Retry-After。
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// 未授权请求不区分路径统一计数,与 auth-gate 的防扫描策略一致。
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import type { FastifyRequest, FastifyReply } from 'fastify'
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const WINDOW_MS = 60_000
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export const registerRateLimit = (fastify: any, limitPerMinute: number) => {
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const hits = new Map<string, number[]>()
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// 惰性清理:窗口滑动时顺带删除已过期 IP 的空记录,防内存无限增长
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const cleanup = () => {
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const threshold = Date.now() - WINDOW_MS
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for (const [ip, times] of hits) {
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const alive = times.filter(t => t > threshold)
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if (alive.length) hits.set(ip, alive)
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else hits.delete(ip)
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}
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}
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const cleanupTimer = setInterval(cleanup, WINDOW_MS)
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cleanupTimer.unref?.()
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fastify.addHook('onRequest', async(request: FastifyRequest, reply: FastifyReply) => {
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if (request.method === 'OPTIONS') return
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const ip = request.ip || 'unknown'
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const now = Date.now()
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const times = (hits.get(ip) || []).filter(t => t > now - WINDOW_MS)
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times.push(now)
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hits.set(ip, times)
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if (times.length > limitPerMinute) {
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const retryAfter = Math.ceil((times[0] + WINDOW_MS - now) / 1000)
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reply.header('Retry-After', String(Math.max(1, retryAfter)))
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return reply.code(429).send({ code: 429, msg: `请求过于频繁(限 ${limitPerMinute} 次/分钟),请 ${Math.max(1, retryAfter)} 秒后重试` })
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}
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})
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}
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+11
-2
@@ -80,8 +80,16 @@ fastify.addHook('onRoute', (routeOptions) => {
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fastify.register(cors, { origin: '*' })
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// ---- 全局限流(per-IP 滑动窗口,RATE_LIMIT=每分钟请求数,0 关闭;默认 120)----
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// 先于鉴权计数:401 爆破秘钥同样受限
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const rateLimit = Number(process.env.RATE_LIMIT ?? 120)
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if (rateLimit > 0) {
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const { registerRateLimit } = await import('./http/rate-limit.ts')
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registerRateLimit(fastify, rateLimit)
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}
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// ---- 调用秘钥(AUTH_KEY 环境变量启用;未设置则不鉴权)----
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// 详见 src/http/auth-gate.ts;文档/健康检查豁免,业务接口要求 Bearer / X-Api-Key / ?key=
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// 统一 X-Server-Key 头,全部路径(含文档/健康检查/404)均要求秘钥,防扫描探测;详见 src/http/auth-gate.ts
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const authKey = process.env.AUTH_KEY
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if (authKey) {
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const { registerAuth } = await import('./http/auth-gate.ts')
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@@ -212,7 +220,8 @@ if (!useSource) {
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export const startServer = async(port = PORT) => {
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await fastify.listen({ port: Number(port), host: '0.0.0.0' })
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console.log(`音乐服务器已启动: http://localhost:${port}`)
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console.log(`调用鉴权: ${authKey ? `已启用(AUTH_KEY,Bearer / X-Api-Key / ?key=)` : '未启用(设置 AUTH_KEY 环境变量开启)'}`)
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console.log(`调用鉴权: ${authKey ? '已启用(AUTH_KEY,X-Server-Key 头)' : '未启用(设置 AUTH_KEY 环境变量开启)'}`)
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console.log(`限流: ${rateLimit > 0 ? `${rateLimit} 次/分钟/IP(RATE_LIMIT 可调,0 关闭)` : '未启用'}`)
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console.log(`取流通道: ${useSource ? '外部音源脚本(sources/,SOURCE_ENABLED)' : 'SDK 官方直连接口'}`)
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console.log(`接口文档: http://localhost:${port}/docs (Swagger UI)`)
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console.log(`ReDoc 文档: http://localhost:${port}/redoc`)
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+39
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@@ -94,7 +94,9 @@ const startLocalServer = (port: number, envExtra: Record<string, string> = {}) =
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}, 10000)
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const check = () => {
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http.get(`http://localhost:${port}/health`, res => {
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// 启用 AUTH_KEY 的实例全路径要求秘钥,探活也须携带
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const headers = envExtra.AUTH_KEY ? { 'X-Server-Key': envExtra.AUTH_KEY } : {}
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http.get(`http://localhost:${port}/health`, { headers }, res => {
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res.resume()
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if (res.statusCode === 200) {
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clearTimeout(timer)
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@@ -608,7 +610,7 @@ await test('登录状态含 xm 字段', async() => {
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return `xm.logged=${r.data.xm.logged}`
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})
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// ---- 调用秘钥鉴权(独立实例带 AUTH_KEY 起测;主实例未设 key 时本组自动跳过)----
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// ---- 调用秘钥鉴权 + 限流(独立实例带 AUTH_KEY/RATE_LIMIT 起测;主实例未设时本组自动跳过)----
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if (!externalServer && !process.env.AUTH_KEY) {
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const AUTH_TEST_KEY = 'smoke-test-secret-key'
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const authPort = await new Promise<number>(resolve => {
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@@ -621,38 +623,54 @@ if (!externalServer && !process.env.AUTH_KEY) {
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const authBase = `http://localhost:${authPort}`
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const authServer: any = await startLocalServer(authPort, { AUTH_KEY: AUTH_TEST_KEY })
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const authFetch = (path: string, init: RequestInit = {}) => fetch(authBase + path, init)
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const keyHeaders = { 'X-Server-Key': AUTH_TEST_KEY }
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await test('AUTH_KEY 无秘钥 → 401', async() => {
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const r = await authFetch('/sources')
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if (r.status !== 401) throw new Error(`期望 401,实际 ${r.status}`)
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return 'ok'
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})
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await test('AUTH_KEY 错误秘钥 → 401', async() => {
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const r = await authFetch('/sources', { headers: { Authorization: 'Bearer wrong-key' } })
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if (r.status !== 401) throw new Error(`期望 401,实际 ${r.status}`)
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await test('AUTH_KEY 旧方式(Bearer/X-Api-Key)不再生效 → 401', async() => {
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const r = await authFetch('/sources', { headers: { Authorization: `Bearer ${AUTH_TEST_KEY}`, 'X-Api-Key': AUTH_TEST_KEY } })
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if (r.status !== 401) throw new Error(`期望 401(只认 X-Server-Key),实际 ${r.status}`)
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return 'ok'
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})
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await test('AUTH_KEY Bearer 通过', async() => {
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const r = await authFetch('/sources', { headers: { Authorization: `Bearer ${AUTH_TEST_KEY}` } })
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await test('AUTH_KEY X-Server-Key 通过', async() => {
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const r = await authFetch('/sources', { headers: keyHeaders })
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if (r.status !== 200) throw new Error(`期望 200,实际 ${r.status}`)
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return 'ok'
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})
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await test('AUTH_KEY X-Api-Key 通过', async() => {
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const r = await authFetch('/sources', { headers: { 'X-Api-Key': AUTH_TEST_KEY } })
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if (r.status !== 200) throw new Error(`期望 200,实际 ${r.status}`)
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return 'ok'
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})
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await test('AUTH_KEY ?key= 通过', async() => {
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const r = await authFetch(`/sources?key=${encodeURIComponent(AUTH_TEST_KEY)}`)
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if (r.status !== 200) throw new Error(`期望 200,实际 ${r.status}`)
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return 'ok'
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})
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await test('AUTH_KEY /health 豁免', async() => {
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const r = await authFetch('/health')
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if (r.status !== 200) throw new Error(`期望 200,实际 ${r.status}`)
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return 'ok'
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// 防扫描:全部页面(含文档/健康检查/不存在的路径)无秘钥一律 401,无法探测接口存在性
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for (const path of ['/health', '/docs', '/openapi.json', '/redoc', '/not-exist-path', '/login/status']) {
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const r = await authFetch(path)
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if (r.status !== 401) throw new Error(`${path} 期望 401,实际 ${r.status}(应全路径要求秘钥)`)
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}
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await test('AUTH_KEY 全路径防扫(文档/health/404 均 401)', async() => 'ok')
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// /stream/* 流代理额外接受 ?key=(播放器拉流兼容),其它路径 ?key= 无效
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await test('AUTH_KEY ?key= 仅限 /stream/*', async() => {
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const normal = await authFetch(`/sources?key=${AUTH_TEST_KEY}`)
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if (normal.status !== 401) throw new Error(`普通路径 ?key= 应 401,实际 ${normal.status}`)
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const stream = await authFetch(`/stream/qs/123?key=${AUTH_TEST_KEY}`)
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// 带对 key 的 stream 请求应通过鉴权(后续业务可能 502,但不能是 401)
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if (stream.status === 401) throw new Error('stream ?key= 应通过鉴权')
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return `stream 状态 ${stream.status}(过鉴权)`
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})
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// 限流(独立低阈值实例验证 429)
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const rlPort = authPort + 1
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const rlBase = `http://localhost:${rlPort}`
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const rlServer: any = await startLocalServer(rlPort, { AUTH_KEY: AUTH_TEST_KEY, RATE_LIMIT: '3' })
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await test('RATE_LIMIT 超限 → 429', async() => {
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const statuses: number[] = []
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for (let i = 0; i < 6; i++) {
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const r = await fetch(`${rlBase}/sources`, { headers: { 'X-Server-Key': AUTH_TEST_KEY } })
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statuses.push(r.status)
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}
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if (!statuses.some(s => s === 429)) throw new Error(`6 连发应触发 429,实际 ${statuses.join(',')}`)
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return `状态序列 ${statuses.join(',')}`
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})
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rlServer.kill()
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authServer.kill()
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}
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