2026-08-15 14:38:14 +08:00
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package router
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import (
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_ "embed"
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"net/http"
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"strings"
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"github.com/gorilla/mux"
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"github.com/volcano-tts/tts-api/controller"
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"github.com/volcano-tts/tts-api/installer"
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"github.com/volcano-tts/tts-api/metrics"
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"github.com/volcano-tts/tts-api/middleware"
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)
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2026-08-29 20:44:33 +08:00
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//go:embed health.html
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var dashboardHTML []byte
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//go:embed setup.html
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var setupHTML []byte
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// Setup 返回主路由。
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// 中间件顺序(由外向内):
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// SecurityHeaders → InstallGuard → RateLimit → ConcurrencyLimit → Logger → handler
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// 关键: InstallGuard 必须在 RateLimit 之前,避免安装模式被限流计数污染。
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func Setup() *mux.Router {
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r := mux.NewRouter()
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r.Use(middleware.SecurityHeaders)
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r.Use(middleware.InstallGuard(installer.GetMode))
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r.Use(middleware.RateLimitWithMetrics)
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r.Use(middleware.ConcurrencyLimitWithMetrics)
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r.Use(middleware.Logger)
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// mux 的 NotFoundHandler 不会走 r.Use() 中间件链,
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// 所以 InstallGuard 的内容协商在 404 路径上不生效。
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// 手动设一个:安装模式 + 浏览器访问任意未注册路径 → 302 跳 /setup。
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r.NotFoundHandler = http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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if installer.GetMode() == installer.ModeSetup && acceptsHTML(r.Header.Get("Accept")) {
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http.Redirect(w, r, "/setup", http.StatusFound)
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return
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}
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http.NotFound(w, r)
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})
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// 安装相关路由(InstallGuard 已在 setup 模式放行;完成后由 controller 二次校验 404)
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// /setup 页面本身:装完后必须不可用,否则用户敲 /setup 还会看到安装表单,容易误以为要重装。
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// 装后跳 /admin(M2 之后才有;目前会 404,这是预期,比继续显示表单好)。
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r.HandleFunc("/setup", func(w http.ResponseWriter, r *http.Request) {
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if installer.GetMode() == installer.ModeNormal {
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http.Redirect(w, r, "/admin", http.StatusFound)
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return
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}
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w.Header().Set("Content-Type", "text/html; charset=utf-8")
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_, _ = w.Write(setupHTML)
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}).Methods("GET")
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r.HandleFunc("/api/setup/status", controller.SetupStatusHandler).Methods("GET")
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r.HandleFunc("/api/setup/prefill", controller.SetupPrefillHandler).Methods("GET")
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r.HandleFunc("/api/setup", controller.SetupSubmitHandler).Methods("POST")
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// 业务路由
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r.HandleFunc("/v1/audio/speech", controller.OpenaiTTSHandler).Methods("POST", "OPTIONS")
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r.HandleFunc("/health", controller.HealthHandler).Methods("GET")
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r.HandleFunc("/dashboard", func(w http.ResponseWriter, r *http.Request) {
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w.Header().Set("Content-Type", "text/html; charset=utf-8")
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_, _ = w.Write(dashboardHTML)
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}).Methods("GET")
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r.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
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// 安装模式下,根路径跳 /setup(给运维一个明显入口)
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if installer.GetMode() == installer.ModeSetup {
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http.Redirect(w, r, "/setup", http.StatusFound)
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return
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}
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http.Redirect(w, r, "/dashboard", http.StatusFound)
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}).Methods("GET")
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2026-08-15 13:30:35 +08:00
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// /metrics 不做鉴权(对齐 /health 策略),但仍然走 RateLimit / ConcurrencyLimit。
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// Prometheus 抓取不带 Origin,因此经过 CORS 中间件时会直接 pass-through。
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r.Handle("/metrics", metrics.Meter.Handler()).Methods("GET")
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return r
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}
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// acceptsHTML 在 router 包内复刻一份,middleware 包的版本未导出。
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// 用途:NotFoundHandler 判断浏览器 Accept。
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// 与 middleware.acceptsHTML 行为一致(简单实现,严格匹配 text/html 或 text/*)。
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func acceptsHTML(accept string) bool {
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if accept == "" {
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return false
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}
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for _, part := range strings.Split(accept, ",") {
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mt := strings.TrimSpace(part)
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if mt == "" {
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continue
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}
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if idx := strings.Index(mt, ";"); idx >= 0 {
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mt = strings.TrimSpace(mt[:idx])
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}
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mt = strings.ToLower(mt)
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if mt == "text/html" || mt == "text/*" {
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return true
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}
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}
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return false
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}
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