func (h *LoginHandler) Logout(res http.ResponseWriter, req *http.Request) {
session := repositories.Session(res, req)
err := session.Clear()
if err != nil {
log.Println("Error when clearing session:", err)
}
h.RedirectToLogin(res, req)
}
func (f *LoginForm) createSession() error {
session := repositories.Session(f.ResponseWriter, f.Request)
session.SetValue("user_id", f.User.Id)
err := session.Save()
if err != nil {
log.Println("Failed to save session:", err)
return LoginFailedError
}
return nil
}
func Csrf(res http.ResponseWriter, req *http.Request, chain *RequestFilterChain) {
session := repositories.Session(res, req)
sessionToken, ok := session.Value("CsrfToken").(string)
if ok {
formToken := req.FormValue("CsrfToken")
if sessionToken == "" || sessionToken != formToken {
http.Error(res, "Forbidden", http.StatusForbidden)
return
}
chain.next()
} else {
http.Error(res, "Forbidden", http.StatusForbidden)
}
}
func getOrCreateCsrfToken(res http.ResponseWriter, req *http.Request) (string, error) {
session := repositories.Session(res, req)
token, ok := session.Value("CsrfToken").(string)
if !ok {
randomKey := securecookie.GenerateRandomKey(32)
token = hex.EncodeToString(randomKey)
session.SetValue("CsrfToken", token)
err := session.Save()
if err != nil {
return "", err
}
}
return token, nil
}
func (f *Filters) Authenticate(res http.ResponseWriter, req *http.Request, chain *RequestFilterChain) {
session := repositories.Session(res, req)
value := session.Value("user_id")
if id, ok := value.(int); ok {
user, err := f.Users.FindById(id)
if err != nil {
if err != repositories.NotFoundError {
log.Println("Error when finding user for authentication:", err)
}
f.RedirectToLogin(res, req)
return
}
context.SetCurrentUser(req, user)
chain.next()
} else {
f.RedirectToLogin(res, req)
}
}