fix session

twice  set-cookie bug fixed

web/session/session.go

@@ -10,38 +10,41 @@ import (
 )
 
 const (
-	loginUser   = "LOGIN_USER"
-	defaultPath = "/"
+	loginUserKey = "LOGIN_USER"
+	defaultPath  = "/"
 )
 
 func init() {
 	gob.Register(model.User{})
 }
 
-func SetLoginUser(c *gin.Context, user *model.User) error {
+func SetLoginUser(c *gin.Context, user *model.User) {
+	if user == nil {
+		return
+	}
 	s := sessions.Default(c)
-	s.Set(loginUser, user)
-	return s.Save()
+	s.Set(loginUserKey, *user)
 }
 
-func SetMaxAge(c *gin.Context, maxAge int) error {
+func SetMaxAge(c *gin.Context, maxAge int) {
 	s := sessions.Default(c)
 	s.Options(sessions.Options{
 		Path:     defaultPath,
 		MaxAge:   maxAge,
 		HttpOnly: true,
 	})
-	return s.Save()
 }
 
 func GetLoginUser(c *gin.Context) *model.User {
 	s := sessions.Default(c)
-	obj := s.Get(loginUser)
+	obj := s.Get(loginUserKey)
 	if obj == nil {
 		return nil
 	}
 	user, ok := obj.(model.User)
 	if !ok {
+
+		s.Delete(loginUserKey)
 		return nil
 	}
 	return &user
@@ -51,7 +54,7 @@ func IsLogin(c *gin.Context) bool {
 	return GetLoginUser(c) != nil
 }
 
-func ClearSession(c *gin.Context) error {
+func ClearSession(c *gin.Context) {
 	s := sessions.Default(c)
 	s.Clear()
 	s.Options(sessions.Options{
@@ -59,5 +62,4 @@ func ClearSession(c *gin.Context) error {
 		MaxAge:   -1,
 		HttpOnly: true,
 	})
-	return s.Save()
 }