Refactor and remove sqlite and replace with MySQL

internal/http/middleware/auth.go

@@ -0,0 +1,49 @@
+package middleware
+
+import (
+	"net/http"
+	"time"
+
+	httpHelpers "synlotto-website/helpers/http"
+
+	"synlotto-website/constants"
+)
+
+func Auth(required bool) func(http.HandlerFunc) http.HandlerFunc {
+	return func(next http.HandlerFunc) http.HandlerFunc {
+		return func(w http.ResponseWriter, r *http.Request) {
+			session, _ := httpHelpers.GetSession(w, r)
+
+			_, ok := session.Values["user_id"].(int)
+
+			if required && !ok {
+				http.Redirect(w, r, "/account/login", http.StatusSeeOther)
+				return
+			}
+
+			if ok {
+				last, hasLast := session.Values["last_activity"].(time.Time)
+				if hasLast && time.Since(last) > constants.SessionDuration {
+					session.Options.MaxAge = -1
+					session.Save(r, w)
+
+					newSession, _ := httpHelpers.GetSession(w, r)
+					newSession.Values["flash"] = "Your session has timed out."
+					newSession.Save(r, w)
+
+					http.Redirect(w, r, "/account/login", http.StatusSeeOther)
+					return
+				}
+
+				session.Values["last_activity"] = time.Now()
+				session.Save(r, w)
+			}
+
+			next(w, r)
+		}
+	}
+}
+
+func Protected(h http.HandlerFunc) http.HandlerFunc {
+	return Auth(true)(SessionTimeout(h))
+}

internal/http/middleware/headers.go

@@ -0,0 +1,23 @@
+package middleware
+
+import "net/http"
+
+func EnforceHTTPS(next http.Handler, enabled bool) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if enabled && r.Header.Get("X-Forwarded-Proto") != "https" && r.TLS == nil {
+			http.Redirect(w, r, "https://"+r.Host+r.RequestURI, http.StatusMovedPermanently)
+			return
+		}
+		next.ServeHTTP(w, r)
+	})
+}
+
+func SecureHeaders(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Content-Security-Policy", "default-src 'self'; style-src 'self' https://cdn.jsdelivr.net; script-src 'self' https://cdn.jsdelivr.net; font-src 'self' https://cdn.jsdelivr.net")
+		w.Header().Set("X-Content-Type-Options", "nosniff")
+		w.Header().Set("X-Frame-Options", "DENY")
+		w.Header().Set("X-XSS-Protection", "1; mode=block")
+		next.ServeHTTP(w, r)
+	})
+}

internal/http/middleware/ratelimit.go

@@ -0,0 +1,35 @@
+package middleware
+
+import (
+	"net"
+	"net/http"
+	"sync"
+
+	"golang.org/x/time/rate"
+)
+
+var visitors = make(map[string]*rate.Limiter)
+var mu sync.Mutex
+
+func GetVisitorLimiter(ip string) *rate.Limiter {
+	mu.Lock()
+	defer mu.Unlock()
+
+	limiter, exists := visitors[ip]
+	if !exists {
+		limiter = rate.NewLimiter(3, 5)
+		visitors[ip] = limiter
+	}
+	return limiter
+}
+
+func RateLimit(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		ip, _, _ := net.SplitHostPort(r.RemoteAddr)
+		if !GetVisitorLimiter(ip).Allow() {
+			http.Error(w, "Too many requests", http.StatusTooManyRequests)
+			return
+		}
+		next.ServeHTTP(w, r)
+	})
+}

internal/http/middleware/recover.go

@@ -0,0 +1,22 @@
+package middleware
+
+import (
+	"log"
+	"net/http"
+	"runtime/debug"
+
+	templateHelpers "synlotto-website/helpers/template"
+)
+
+func Recover(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		defer func() {
+			if rec := recover(); rec != nil {
+				log.Printf("🔥 Recovered from panic: %v\n%s", rec, debug.Stack())
+
+				templateHelpers.RenderError(w, r, http.StatusInternalServerError)
+			}
+		}()
+		next.ServeHTTP(w, r)
+	})
+}

internal/http/middleware/sessiontimeout.go

@@ -0,0 +1,40 @@
+package middleware
+
+import (
+	"log"
+	"net/http"
+	"time"
+
+	session "synlotto-website/handlers/session"
+
+	"synlotto-website/constants"
+)
+
+func SessionTimeout(next http.HandlerFunc) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		sess, err := session.GetSession(w, r)
+		if err != nil {
+			http.Redirect(w, r, "/account/login", http.StatusSeeOther)
+			return
+		}
+
+		last, ok := sess.Values["last_activity"].(time.Time)
+		if !ok || time.Since(last) > constants.SessionDuration {
+			sess.Options.MaxAge = -1
+			_ = sess.Save(r, w)
+
+			newSession, _ := session.GetSession(w, r)
+			newSession.Values["flash"] = "Your session has timed out."
+			_ = newSession.Save(r, w)
+
+			log.Printf("Session timeout triggered")
+			http.Redirect(w, r, "/account/login", http.StatusSeeOther)
+			return
+		}
+
+		sess.Values["last_activity"] = time.Now().UTC()
+		_ = sess.Save(r, w)
+
+		next(w, r)
+	}
+}