func main() { flag.Parse() var ok, ko int var mu sync.Mutex // Keep start time to log since-time start := time.Now() // Create the interval throttle t := throttled.Interval(throttled.D(*delay), *bursts, nil, 0) // Set its denied handler t.DeniedHandler = http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { if *output == "v" || *output == "ko" { log.Printf("%s: KO: %s", r.URL.Path, time.Since(start)) } throttled.DefaultDeniedHandler.ServeHTTP(w, r) mu.Lock() defer mu.Unlock() ko++ }) // Create OK handlers rand.Seed(time.Now().Unix()) makeHandler := func(ix int) http.Handler { return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { if *output == "v" || *output == "ok" { log.Printf("handler %d: %s: ok: %s", ix, r.URL.Path, time.Since(start)) } if *delayRes > 0 { wait := time.Duration(rand.Intn(int(*delayRes))) time.Sleep(wait) } w.WriteHeader(200) mu.Lock() defer mu.Unlock() ok++ }) } // Throttle them using the same interval throttler h1 := t.Throttle(makeHandler(1)) h2 := t.Throttle(makeHandler(2)) // Handle two paths mux := http.NewServeMux() mux.Handle("/a", h1) mux.Handle("/b", h2) // Print stats once in a while go func() { for _ = range time.Tick(10 * time.Second) { mu.Lock() log.Printf("ok: %d, ko: %d", ok, ko) mu.Unlock() } }() fmt.Println("server listening on port 9000") http.ListenAndServe(":9000", mux) }
func main() { flag.Parse() var h http.Handler var ok, ko int var mu sync.Mutex // Keep the start time to print since-time start := time.Now() // Create the interval throttler t := throttled.Interval(throttled.D(*delay), *bursts, &throttled.VaryBy{ Path: true, }, *maxkeys) // Set the denied handler t.DeniedHandler = http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { if *output == "v" || *output == "ko" { log.Printf("KO: %s", time.Since(start)) } throttled.DefaultDeniedHandler.ServeHTTP(w, r) mu.Lock() defer mu.Unlock() ko++ }) // Throttle the OK handler rand.Seed(time.Now().Unix()) h = t.Throttle(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { if *output == "v" || *output == "ok" { log.Printf("%s: ok: %s", r.URL.Path, time.Since(start)) } if *delayRes > 0 { wait := time.Duration(rand.Intn(int(*delayRes))) time.Sleep(wait) } w.WriteHeader(200) mu.Lock() defer mu.Unlock() ok++ })) // Print stats once in a while go func() { for _ = range time.Tick(10 * time.Second) { mu.Lock() log.Printf("ok: %d, ko: %d", ok, ko) mu.Unlock() } }() fmt.Println("server listening on port 9000") http.ListenAndServe(":9000", h) }
func NewServer() http.Handler { th := throttled.Interval(throttled.PerSec(10), 1, &throttled.VaryBy{Path: true}, 50) r := mux.NewRouter() // Handle Static files r.Handle("/css/{rest}", http.StripPrefix("/css/", http.FileServer(http.Dir("./public/css/")))).Methods("GET") r.Handle("/js/{rest}", http.StripPrefix("/js/", http.FileServer(http.Dir("./public/js/")))).Methods("GET") r.Handle("/uploads/{rest}", http.StripPrefix("/uploads/", http.FileServer(http.Dir("./public/uploads/")))).Methods("GET") // Handle Root r.Handle("/", alice.New(th.Throttle, timeoutHandler).Then(http.HandlerFunc(Homepage))).Methods("GET") // Handle feeds r.HandleFunc("/feeds", func(w http.ResponseWriter, r *http.Request) { http.Redirect(w, r, "/feeds/rss", http.StatusFound) }) r.HandleFunc("/feeds/", func(w http.ResponseWriter, r *http.Request) { http.Redirect(w, r, "/feeds/rss", http.StatusFound) }) r.HandleFunc("/feeds/atom", ReadFeed).Methods("GET") r.HandleFunc("/feeds/rss", ReadFeed).Methods("GET") // route: /post // Please note that `/new` route has to be before the `/:slug` route. Otherwise the program will try // to fetch for Post named "new". // For now I'll keep it this way to streamline route naming. r.Handle("/post/new", alice.New(th.Throttle, timeoutHandler, ProtectedPage).Then(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { rend.HTML(w, http.StatusOK, "post/new", nil) }))).Methods("GET") r.Handle("/post/new", alice.New(th.Throttle, timeoutHandler, ProtectedPage, StrictWWWFormUrlEncoded).Then(http.HandlerFunc(CreatePost))).Methods("POST") r.Handle("/post/search", alice.New(th.Throttle, timeoutHandler, StrictWWWFormUrlEncoded).Then(http.HandlerFunc(SearchPost))).Methods("POST") r.HandleFunc("/post/{slug}", ReadPost).Methods("GET") r.Handle("/post/{slug}/edit", alice.New(th.Throttle, timeoutHandler, ProtectedPage).Then(http.HandlerFunc(EditPost))).Methods("GET") r.Handle("/post/{slug}/edit", alice.New(th.Throttle, timeoutHandler, ProtectedPage, StrictWWWFormUrlEncoded).Then(http.HandlerFunc(UpdatePost))).Methods("POST") r.Handle("/post/{slug}/delete", alice.New(th.Throttle, timeoutHandler, ProtectedPage).Then(http.HandlerFunc(DeletePost))).Methods("GET") r.Handle("/post/{slug}/publish", alice.New(th.Throttle, timeoutHandler, ProtectedPage).Then(http.HandlerFunc(PublishPost))).Methods("GET") r.Handle("/post/{slug}/unpublish", alice.New(th.Throttle, timeoutHandler, ProtectedPage).Then(http.HandlerFunc(UnpublishPost))).Methods("GET") // route: /user r.Handle("/user", alice.New(th.Throttle, timeoutHandler, ProtectedPage).Then(http.HandlerFunc(ReadUser))).Methods("GET") r.Handle("/user/login", alice.New(th.Throttle, timeoutHandler, SessionRedirect).Then(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { rend.HTML(w, http.StatusOK, "user/login", nil) }))).Methods("GET") r.Handle("/user/login", alice.New(th.Throttle, timeoutHandler, SessionRedirect, StrictWWWFormUrlEncoded).Then(http.HandlerFunc(LoginUser))).Methods("POST") //r.Handle("/user/login", alice.New(th.Throttle, timeoutHandler).Then(http.HandlerFunc(LoginUser))).Methods("POST") r.HandleFunc("/user/logout", LogoutUser).Methods("GET") r.Handle("/user/settings", alice.New(th.Throttle, timeoutHandler, ProtectedPage).Then(http.HandlerFunc(ReadBlogSettings))).Methods("GET") r.Handle("/user/settings", alice.New(th.Throttle, timeoutHandler, ProtectedPage, StrictWWWFormUrlEncoded).Then(http.HandlerFunc(UpdateBlogSettings))).Methods("POST") r.Handle("/user/installation", alice.New(th.Throttle, timeoutHandler, StrictWWWFormUrlEncoded).Then(http.HandlerFunc(UpdateBlogSettings))).Methods("POST") r.Handle("/user/register", alice.New(th.Throttle, timeoutHandler, SessionRedirect).Then(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { rend.HTML(w, http.StatusOK, "user/register", nil) }))).Methods("GET") r.Handle("/user/register", alice.New(th.Throttle, timeoutHandler, ProtectedPage, StrictWWWFormUrlEncoded).Then(http.HandlerFunc(CreateUser))).Methods("POST") r.Handle("/user/recover", alice.New(th.Throttle, timeoutHandler, SessionRedirect).Then(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { rend.HTML(w, http.StatusOK, "user/recover", nil) }))).Methods("GET") r.Handle("/user/recover", alice.New(th.Throttle, timeoutHandler, ProtectedPage, StrictWWWFormUrlEncoded).Then(http.HandlerFunc(RecoverUser))).Methods("POST") r.Handle("/user/reset/{id}/{recovery}", alice.New(th.Throttle, timeoutHandler, SessionRedirect).Then(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { rend.HTML(w, http.StatusOK, "user/reset", nil) }))).Methods("GET") r.Handle("/user/reset/{id}/{recovery}", alice.New(th.Throttle, timeoutHandler, ProtectedPage, StrictWWWFormUrlEncoded).Then(http.HandlerFunc(ResetUserPassword))).Methods("POST") //r.Post("/delete", strict.ContentType("application/x-www-form-urlencoded"), ProtectedPage, binding.Form(User{}), DeleteUser) // route: /api r.HandleFunc("/api", func(w http.ResponseWriter, r *http.Request) { rend.HTML(w, http.StatusOK, "api/index", nil) }) r.HandleFunc("/api/", func(w http.ResponseWriter, r *http.Request) { rend.HTML(w, http.StatusOK, "api/index", nil) }) r.Handle("/api/settings", alice.New(th.Throttle, timeoutHandler, ProtectedPage).Then(http.HandlerFunc(ReadBlogSettings))).Methods("GET") r.Handle("/api/settings", alice.New(th.Throttle, timeoutHandler, ProtectedPage, StrictJSON).Then(http.HandlerFunc(UpdateBlogSettings))).Methods("POST") r.Handle("/api/installation", alice.New(th.Throttle, timeoutHandler, StrictJSON).Then(http.HandlerFunc(UpdateBlogSettings))).Methods("POST") r.HandleFunc("/api/users", ReadUsers).Methods("GET") r.Handle("/api/user/login", alice.New(th.Throttle, timeoutHandler, SessionRedirect, StrictJSON).Then(http.HandlerFunc(LoginUser))).Methods("POST") //r.Handle("/api/user/login", alice.New(th.Throttle, timeoutHandler).Then(http.HandlerFunc(LoginUser))).Methods("POST") r.HandleFunc("/api/user/logout", LogoutUser).Methods("GET") r.Handle("/api/user/recover", alice.New(th.Throttle, timeoutHandler, StrictJSON).Then(http.HandlerFunc(RecoverUser))).Methods("POST") r.Handle("/api/user/reset/{id}/{recovery}", alice.New(th.Throttle, timeoutHandler, StrictJSON).Then(http.HandlerFunc(ResetUserPassword))).Methods("POST") r.HandleFunc("/api/user/{id}", ReadUser).Methods("GET") //r.Delete("/user", DeleteUser) r.Handle("/api/user", alice.New(th.Throttle, timeoutHandler, StrictJSON).Then(http.HandlerFunc(CreateUser))).Methods("POST") r.HandleFunc("/api/posts", ReadPosts).Methods("GET") r.HandleFunc("/api/post/{slug}", ReadPost).Methods("GET") r.Handle("/api/post/{slug}/edit", alice.New(th.Throttle, timeoutHandler, ProtectedPage, StrictJSON).Then(http.HandlerFunc(UpdatePost))).Methods("POST") r.Handle("/api/post/{slug}/publish", alice.New(th.Throttle, timeoutHandler, ProtectedPage).Then(http.HandlerFunc(PublishPost))).Methods("GET") r.Handle("/api/post/{slug}/unpublish", alice.New(th.Throttle, timeoutHandler, ProtectedPage).Then(http.HandlerFunc(UnpublishPost))).Methods("GET") r.Handle("/api/post/{slug}/delete", alice.New(th.Throttle, timeoutHandler, ProtectedPage).Then(http.HandlerFunc(DeletePost))).Methods("GET") r.Handle("/api/post", alice.New(th.Throttle, timeoutHandler, ProtectedPage, StrictJSON).Then(http.HandlerFunc(CreatePost))).Methods("POST") r.Handle("/api/post/search", alice.New(th.Throttle, timeoutHandler, StrictJSON).Then(http.HandlerFunc(SearchPost))).Methods("POST") return alice.New(Logger).Then(r) }
func throttle(next http.Handler, o ServerOptions) http.Handler { th := throttled.Interval(throttled.PerSec(o.Concurrency), o.Burst, &throttled.VaryBy{Method: true}, o.Burst) return th.Throttle(next) }