Initial commit

main.go

@@ -0,0 +1,198 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"html/template"
+	"log"
+	"net/http"
+	"sync"
+)
+
+// User struktura za uporabniške podatke
+type User struct {
+	ID       int
+	Username string
+	Password string
+	Email    string
+	FullName string
+}
+
+// In-memory shranjevanje uporabnikov
+var (
+	users    = make(map[string]*User)
+	usersMux = &sync.RWMutex{}
+	lastID   = 0
+)
+
+// Template cache
+var templates *template.Template
+
+func init() {
+	// Privzeti uporabniki
+	addUser("jnovak", "secure123", "janez.novak@securebank.si", "Janez Novak")
+	addUser("mpetric", "banking456", "maja.petric@securebank.si", "Maja Petrič")
+}
+
+func addUser(username, password, email, fullName string) {
+	usersMux.Lock()
+	defer usersMux.Unlock()
+	lastID++
+	users[username] = &User{
+		ID:       lastID,
+		Username: username,
+		Password: password,
+		Email:    email,
+		FullName: fullName,
+	}
+}
+
+func main() {
+	// Nastavimo port preko command line argumenta
+	var port = flag.String("port", "8080", "Port na katerem se bo zagnal server")
+	flag.Parse()
+
+	// Naložimo HTML predloge
+	var err error
+	templates, err = template.ParseGlob("templates/*.html")
+	if err != nil {
+		log.Fatal("Napaka pri nalaganju predlog:", err)
+	}
+
+	// Statične datoteke (CSS)
+	http.Handle("/static/", http.StripPrefix("/static/", http.FileServer(http.Dir("static/"))))
+
+	// Routes
+	http.HandleFunc("/", homeHandler)
+	http.HandleFunc("/register", registerHandler)
+	http.HandleFunc("/login", loginHandler)
+	http.HandleFunc("/dashboard", dashboardHandler)
+	http.HandleFunc("/logout", logoutHandler)
+
+	// Zagon strežnika
+	fmt.Printf("SecureBank aplikacija se zaganja na portu %s\n", *port)
+	fmt.Printf("Dostop: http://localhost:%s\n", *port)
+
+	serverAddr := ":" + *port
+	log.Fatal(http.ListenAndServe(serverAddr, nil))
+}
+
+func homeHandler(w http.ResponseWriter, r *http.Request) {
+	templates.ExecuteTemplate(w, "home.html", nil)
+}
+
+func registerHandler(w http.ResponseWriter, r *http.Request) {
+	if r.Method == "GET" {
+		templates.ExecuteTemplate(w, "register.html", nil)
+		return
+	}
+
+	if r.Method == "POST" {
+		username := r.FormValue("username")
+		password := r.FormValue("password")
+		email := r.FormValue("email")
+		fullName := r.FormValue("fullName")
+
+		//Validacija
+		if username == "" || password == "" || email == "" || fullName == "" {
+			templates.ExecuteTemplate(w, "register.html", map[string]string{
+				"Error": "Vsa polja so obvezna!",
+			})
+			return
+		}
+
+		// Preverimo če uporabnik že obstaja
+		usersMux.RLock()
+		_, exists := users[username]
+		usersMux.RUnlock()
+
+		if exists {
+			templates.ExecuteTemplate(w, "register.html", map[string]string{
+				"Error": "Uporabniško ime že obstaja!",
+			})
+			return
+		}
+
+		// Dodamo novega uporabnika
+		addUser(username, password, email, fullName)
+
+		// Preusmeri na prijavo
+		http.Redirect(w, r, "/login?registered=1", http.StatusSeeOther)
+		return
+	}
+}
+
+func loginHandler(w http.ResponseWriter, r *http.Request) {
+	if r.Method == "GET" {
+		data := map[string]string{}
+		if r.URL.Query().Get("registered") == "1" {
+			data["Success"] = "Registracija je bila uspešna! Sedaj se lahko prijavite."
+		}
+		templates.ExecuteTemplate(w, "login.html", data)
+		return
+	}
+
+	if r.Method == "POST" {
+		username := r.FormValue("username")
+		password := r.FormValue("password")
+
+		// Preverimo podatke
+		usersMux.RLock()
+		user, exists := users[username]
+		usersMux.RUnlock()
+
+		if !exists || user.Password != password {
+			templates.ExecuteTemplate(w, "login.html", map[string]string{
+				"Error": "Napačno uporabniško ime ali geslo!",
+			})
+			return
+		}
+
+		// Uspešna prijava - preusmeri na dashboard
+		// POZOR: Brez session management za demo!
+		http.Redirect(w, r, "/dashboard?user="+username, http.StatusSeeOther)
+		return
+	}
+}
+
+func dashboardHandler(w http.ResponseWriter, r *http.Request) {
+	username := r.URL.Query().Get("user")
+	if username == "" {
+		http.Redirect(w, r, "/login", http.StatusSeeOther)
+		return
+	}
+
+	usersMux.RLock()
+	user, exists := users[username]
+	usersMux.RUnlock()
+
+	if !exists {
+		http.Redirect(w, r, "/login", http.StatusSeeOther)
+		return
+	}
+
+	// Simuliramo "bančne" podatke
+	accounts := []map[string]interface{}{
+		{
+			"Name":    "Glavni račun",
+			"Number":  "SI56 1234 5678 9012 345",
+			"Balance": "€2,456.78",
+		},
+		{
+			"Name":    "Varčevalni račun",
+			"Number":  "SI56 1234 5678 9012 999",
+			"Balance": "€15,230.45",
+		},
+	}
+
+	data := map[string]interface{}{
+		"User":     user,
+		"Accounts": accounts,
+	}
+
+	templates.ExecuteTemplate(w, "dashboard.html", data)
+}
+
+func logoutHandler(w http.ResponseWriter, r *http.Request) {
+	http.Redirect(w, r, "/", http.StatusSeeOther)
+}