Request object

app/router/requests/requests.go

@@ -0,0 +1,81 @@
+package requests
+
+import (
+	"errors"
+	"fiber-sessions/app/types"
+	"time"
+
+	"github.com/gofiber/fiber/v2"
+	"github.com/gofiber/fiber/v2/middleware/session"
+	"github.com/gofiber/storage/memory/v2"
+)
+
+var sessionStorage = memory.New()
+var sessionStore = session.New(session.Config{
+	Storage: sessionStorage,
+})
+
+const SESSION_EXPIRES = time.Minute * 30
+
+type UserGetter interface {
+	GetUserById(id string) *types.User
+	AuthUser(username string, password string) *types.User
+}
+
+type Request struct {
+	ctx        *fiber.Ctx
+	session    *session.Session
+	User       *types.User
+	userGetter UserGetter
+}
+
+func NewRequest(ctx *fiber.Ctx, userGetter UserGetter) *Request {
+	session, err := sessionStore.Get(ctx)
+	if err != nil {
+		panic(err)
+	}
+
+	var user *types.User = nil
+
+	userId := session.Get("userId")
+	if userId != nil {
+		user = userGetter.GetUserById(userId.(string))
+	}
+
+	return &Request{
+		ctx:        ctx,
+		session:    session,
+		userGetter: userGetter,
+		User:       user,
+	}
+}
+
+func (r *Request) LoginUser(username string, password string) error {
+	user := r.userGetter.AuthUser(username, password)
+
+	if user == nil {
+		return errors.New("invalid username or password")
+	}
+	r.User = user
+
+	r.session.Set("userId", r.User.Id)
+	r.session.SetExpiry(SESSION_EXPIRES)
+	if err := r.session.Save(); err != nil {
+		panic(err)
+	}
+
+	return nil
+}
+
+func (r *Request) UserAuthenticated() bool {
+	return r.User != nil
+}
+
+func (r *Request) Logout() error {
+	if !r.UserAuthenticated() {
+		return errors.New("user not authenticated")
+	}
+	r.session.Destroy()
+	r.User = nil
+	return nil
+}