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// Package session provides session management utilities for the 3x-ui web panel.
// It handles user authentication state, login sessions, and session storage using Gin sessions.
package session
import (
"encoding/gob"
"net/http"
"github.com/mhsanaei/3x-ui/v2/database/model"
"github.com/mhsanaei/3x-ui/v2/logger"
"github.com/gin-contrib/sessions"
"github.com/gin-gonic/gin"
)
const (
loginUserKey = "LOGIN_USER"
)
func init() {
gob.Register(model.User{})
}
// SetLoginUser stores the authenticated user in the session and persists it.
// gin-contrib/sessions does not auto-save; callers that forget Save() leave
// the cookie out of sync with server state — this helper avoids that pitfall.
func SetLoginUser(c *gin.Context, user *model.User) error {
if user == nil {
return nil
}
s := sessions.Default(c)
s.Set(loginUserKey, *user)
return s.Save()
}
// GetLoginUser retrieves the authenticated user from the session.
// Returns nil if no user is logged in or if the session data is invalid.
func GetLoginUser(c *gin.Context) *model.User {
s := sessions.Default(c)
obj := s.Get(loginUserKey)
if obj == nil {
return nil
}
user, ok := obj.(model.User)
if !ok {
// Stale or incompatible session payload — wipe and persist immediately
// so subsequent requests don't keep hitting the same broken cookie.
s.Delete(loginUserKey)
if err := s.Save(); err != nil {
logger.Warning("session: failed to drop stale user payload:", err)
}
return nil
}
return &user
}
// IsLogin checks if a user is currently authenticated in the session.
func IsLogin(c *gin.Context) bool {
return GetLoginUser(c) != nil
}
// ClearSession invalidates the session and tells the browser to drop the cookie.
// The cookie attributes (Path/HttpOnly/SameSite) must mirror those used when
// the cookie was created or browsers will keep it.
func ClearSession(c *gin.Context) error {
s := sessions.Default(c)
s.Clear()
cookiePath := c.GetString("base_path")
if cookiePath == "" {
cookiePath = "/"
}
s.Options(sessions.Options{
Path: cookiePath,
MaxAge: -1,
HttpOnly: true,
SameSite: http.SameSiteLaxMode,
})
return s.Save()
}
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