package main import ( "crypto/tls" "encoding/json" "fmt" "io" "log" "net/http" "net/http/httputil" "net/url" "os" "os/exec" "strings" "time" "github.com/gorilla/mux" "gopkg.in/gomail.v2" ) type TripEntry struct { Name string `json:"name"` Vehicle string `json:"vehicle"` Destination string `json:"destination"` DateStart string `json:"date_start"` TimeStart string `json:"time_start"` DateEnd string `json:"date_end"` TimeEnd string `json:"time_end"` Purpose string `json:"purpose"` KmStart int `json:"km_start"` KmEnd int `json:"km_end"` Coordinates *GeoCoords `json:"coordinates,omitempty"` } type GeoCoords struct { Lat string `json:"lat"` Lng string `json:"lng"` } func main() { log.SetFlags(log.LstdFlags | log.Lshortfile) // Create necessary directories if err := os.MkdirAll("data", 0755); err != nil { log.Fatalf("Failed to create data directory: %v", err) } if err := os.MkdirAll("uploads", 0755); err != nil { log.Fatalf("Failed to create uploads directory: %v", err) } r := mux.NewRouter() // Set up reverse proxy to kontakt service kontaktURL, _ := url.Parse("http://webportal:8080") kontaktProxy := httputil.NewSingleHostReverseProxy(kontaktURL) // Public routes r.PathPrefix("/kontakt/").Handler(http.StripPrefix("/kontakt", kontaktProxy)) r.PathPrefix("/uploads/").Handler(http.StripPrefix("/uploads/", http.FileServer(http.Dir("./uploads")))) r.HandleFunc("/health", func(w http.ResponseWriter, r *http.Request) { w.Header().Set("Content-Type", "application/json") w.Write([]byte(`{"status":"ok"}`)) }).Methods("GET", "OPTIONS") // Authentication routes r.HandleFunc("/api/login", LoginHandler).Methods("POST", "OPTIONS") // Protected API routes api := r.PathPrefix("/api").Subrouter() api.Use(AuthMiddleware) api.HandleFunc("/submit", handleSubmit).Methods("POST") api.HandleFunc("/banner/update", UpdateBannerHandler).Methods("POST", "OPTIONS") // Public endpoints r.HandleFunc("/api/banner", GetBannerHandler).Methods("GET", "OPTIONS") // Important: This public submit endpoint must be defined BEFORE the static file server r.HandleFunc("/submit", handleSubmit).Methods("POST", "OPTIONS") // Public submit endpoint for evidence-aut.html // Add CORS middleware for API r.Use(func(next http.Handler) http.Handler { return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { w.Header().Set("Access-Control-Allow-Origin", "*") w.Header().Set("Access-Control-Allow-Methods", "GET, POST, OPTIONS") w.Header().Set("Access-Control-Allow-Headers", "Content-Type, Authorization") if r.Method == "OPTIONS" { w.WriteHeader(http.StatusOK) return } next.ServeHTTP(w, r) }) }) // Admin routes r.HandleFunc("/admin", func(w http.ResponseWriter, r *http.Request) { http.ServeFile(w, r, "admin.html") }).Methods("GET") r.HandleFunc("/admin/dashboard", func(w http.ResponseWriter, r *http.Request) { http.ServeFile(w, r, "admin-dashboard.html") }).Methods("GET") // Redirect root to index.html r.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) { if r.URL.Path == "/" { http.ServeFile(w, r, "index.html") } }).Methods("GET") // Public route for evidence-aut.html r.HandleFunc("/evidence-aut", func(w http.ResponseWriter, r *http.Request) { http.ServeFile(w, r, "evidence-aut.html") }).Methods("GET") // Static file server for public files - must be the last route defined fs := http.FileServer(http.Dir(".")) r.PathPrefix("/").Handler(fs) r.HandleFunc("/kontakt", func(w http.ResponseWriter, r *http.Request) { // Check if kontakt service is already running resp, err := http.Get("http://webportal:8080/health") if err == nil && resp.StatusCode == 200 { http.Redirect(w, r, "http://webportal:8080/", http.StatusFound) return } // Start the service if not running cmd := exec.Command("make", "dev") cmd.Dir = "kontakt" err = cmd.Start() if err != nil { http.Error(w, "Failed to start kontakt service", http.StatusInternalServerError) return } // Wait briefly for service to start time.Sleep(2 * time.Second) http.Redirect(w, r, "http://webportal:8080/", http.StatusFound) }).Methods("GET") // Apply CORS middleware to all routes handler := enableCORS(r) port := os.Getenv("PORT") if port == "" { port = "80" } log.Printf("Server běží na portu %s", port) err := http.ListenAndServe(":"+port, handler) if err != nil { log.Fatalf("Chyba při spuštění serveru: %v", err) } } func enableCORS(next http.Handler) http.Handler { return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { w.Header().Set("Access-Control-Allow-Origin", "*") w.Header().Set("Access-Control-Allow-Methods", "POST, GET, OPTIONS, PUT, DELETE") w.Header().Set("Access-Control-Allow-Headers", "Accept, Content-Type, Content-Length, Accept-Encoding, X-CSRF-Token, Authorization") if r.Method == "OPTIONS" { w.WriteHeader(http.StatusOK) return } next.ServeHTTP(w, r) }) } func handleSubmit(w http.ResponseWriter, r *http.Request) { w.Header().Set("Content-Type", "application/json") if r.Method != http.MethodPost { if r.Method == http.MethodOptions { w.WriteHeader(http.StatusOK) return } w.WriteHeader(http.StatusMethodNotAllowed) w.Write([]byte(`{"error":"Only POST method is allowed"}`)) return } body, err := io.ReadAll(r.Body) if err != nil { log.Printf("Chyba při čtení těla požadavku: %v", err) w.WriteHeader(http.StatusBadRequest) w.Write([]byte(`{"error":"Failed to read request body"}`)) return } defer r.Body.Close() log.Printf("Přijatá data: %s", string(body)) var entry TripEntry err = json.Unmarshal(body, &entry) if err != nil { log.Printf("Chyba při parsování JSON: %v", err) w.WriteHeader(http.StatusBadRequest) w.Write([]byte(fmt.Sprintf(`{"error":"Failed to parse JSON: %v"}`, err))) return } if entry.Name == "" || entry.Destination == "" || entry.DateStart == "" || entry.DateEnd == "" || entry.Purpose == "" { log.Printf("Chybějící povinná pole: %+v", entry) w.WriteHeader(http.StatusBadRequest) w.Write([]byte(`{"error":"Missing required fields"}`)) return } if entry.KmEnd < entry.KmStart { log.Printf("Neplatný stav tachometru: %d -> %d", entry.KmStart, entry.KmEnd) w.WriteHeader(http.StatusBadRequest) w.Write([]byte(`{"error":"End kilometers must be greater than or equal to start kilometers"}`)) return } // Formátování dat do českého formátu czechMonths := []string{ "ledna", "února", "března", "dubna", "května", "června", "července", "srpna", "září", "října", "listopadu", "prosince", } // Zpracování začátku cesty parsedDateStart, err := time.Parse("2006-01-02", entry.DateStart) if err != nil { log.Printf("Chyba při parsování data začátku: %v", err) } // Zpracování konce cesty parsedDateEnd, err := time.Parse("2006-01-02", entry.DateEnd) if err != nil { log.Printf("Chyba při parsování data konce: %v", err) } err = sendEmail(entry, parsedDateStart, parsedDateEnd, czechMonths) if err != nil { log.Printf("Chyba při odesílání emailu: %v", err) w.WriteHeader(http.StatusInternalServerError) w.Write([]byte(fmt.Sprintf(`{"error":"Failed to send email: %v"}`, err))) return } w.WriteHeader(http.StatusOK) w.Write([]byte(`{"message":"Záznam byl úspěšně uložen a email odeslán"}`)) } func sendEmail(entry TripEntry, parsedDateStart, parsedDateEnd time.Time, czechMonths []string) error { smtpHost := "smtp.gmail.com" smtpPort := 465 sender := "contact.dvorak@gmail.com" password := "pnhkcsahbwsbpyqj" recipient := "contact.dvorak@gmail.com" m := gomail.NewMessage() m.SetHeader("From", sender) m.SetHeader("To", recipient) m.SetHeader("Subject", "Nový záznam o jízdě služebním autem") var htmlContent strings.Builder htmlContent.WriteString(` Záznam o jízdě služebním autem

Záznam o jízdě služebním autem

`) // Formátování dat a časů pro zobrazení formattedDateStart := "" if parsedDateStart.IsZero() == false { monthNameStart := czechMonths[parsedDateStart.Month()-1] formattedDateStart = fmt.Sprintf("%d. %s %d", parsedDateStart.Day(), monthNameStart, parsedDateStart.Year()) } else { formattedDateStart = entry.DateStart } formattedDateEnd := "" if !parsedDateEnd.IsZero() { monthNameEnd := czechMonths[parsedDateEnd.Month()-1] formattedDateEnd = fmt.Sprintf("%d. %s %d", parsedDateEnd.Day(), monthNameEnd, parsedDateEnd.Year()) } else { formattedDateEnd = entry.DateEnd } // Výpočet celkové doby jízdy startDateTime, startErr := time.Parse("2006-01-02T15:04", fmt.Sprintf("%sT%s", entry.DateStart, entry.TimeStart)) endDateTime, endErr := time.Parse("2006-01-02T15:04", fmt.Sprintf("%sT%s", entry.DateEnd, entry.TimeEnd)) totalDurationStr := "Neznámá" if startErr == nil && endErr == nil { diffMs := endDateTime.Sub(startDateTime) if diffMs >= 0 { diffDays := int(diffMs.Hours() / 24) diffHours := int(diffMs.Hours()) % 24 diffMinutes := int(diffMs.Minutes()) % 60 if diffDays > 0 { dayWord := "dní" if diffDays == 1 { dayWord = "den" } else if diffDays >= 2 && diffDays <= 4 { dayWord = "dny" } totalDurationStr = fmt.Sprintf("%d %s, %d h %d min", diffDays, dayWord, diffHours, diffMinutes) } else { totalDurationStr = fmt.Sprintf("%d h %d min", diffHours, diffMinutes) } } } // Vypsání informací o řidiči a vozidle htmlContent.WriteString(`
Informace o řidiči a vozidle
Řidič ` + entry.Name + `
Vozidlo ` + entry.Vehicle + `
`) // Vypsání informací o trase htmlContent.WriteString(`
Informace o trase
Cíl cesty ` + entry.Destination + `
Účel jízdy ` + entry.Purpose + `
`) // Vypsání informací o času htmlContent.WriteString(`
Časové údaje
Datum a čas odjezdu ` + formattedDateStart + `, ` + entry.TimeStart + `
Datum a čas příjezdu ` + formattedDateEnd + `, ` + entry.TimeEnd + `
Celková doba jízdy ` + totalDurationStr + `
`) // Vypsání informací o kilometrech htmlContent.WriteString(`
Stav tachometru
Stav na začátku ` + fmt.Sprintf("%d km", entry.KmStart) + `
Stav na konci ` + fmt.Sprintf("%d km", entry.KmEnd) + `
Celkem ujeto ` + fmt.Sprintf("%d km", entry.KmEnd-entry.KmStart) + `
`) if entry.Coordinates != nil { htmlContent.WriteString(`
GPS Souřadnice
Souřadnice ` + entry.Coordinates.Lat + `, ` + entry.Coordinates.Lng + `
Zobrazit na mapě
`) } htmlContent.WriteString(`
© 2025 Poppe + Potthoff - Automaticky generovaný email
`) m.SetBody("text/html", htmlContent.String()) d := gomail.NewDialer(smtpHost, smtpPort, sender, password) d.TLSConfig = &tls.Config{InsecureSkipVerify: true} return d.DialAndSend(m) }