Admin_LoginController::loginAction PHP Метод

    public function loginAction()
    {
        $user = null;
        try {
            \Pimcore::getEventManager()->trigger("admin.login.login.authenticate", $this, ["username" => $this->getParam("username"), "password" => $this->getParam("password")]);
            $user = $this->getUser();
            if (!$user instanceof User) {
                if ($this->getParam("password")) {
                    $user = Tool\Authentication::authenticatePlaintext($this->getParam("username"), $this->getParam("password"));
                    if (!$user) {
                        throw new \Exception("Invalid username or password");
                    }
                } elseif ($this->getParam("token")) {
                    $user = Tool\Authentication::authenticateToken($this->getParam("username"), $this->getParam("token"));
                    if (!$user) {
                        throw new \Exception("Invalid username or token");
                    }
                    // save the information to session when the user want's to reset the password
                    // this is because otherwise the old password is required => see also PIMCORE-1468
                    if ($this->getParam("reset")) {
                        Tool\Session::useSession(function ($adminSession) {
                            $adminSession->password_reset = true;
                        });
                    }
                } else {
                    throw new \Exception("Invalid authentication method, must be either password or token");
                }
            }
        } catch (\Exception $e) {
            //see if module or plugin authenticates user
            \Pimcore::getEventManager()->trigger("admin.login.login.failed", $this, ["username" => $this->getParam("username"), "password" => $this->getParam("password")]);
            $user = $this->getUser();
            if (!$user instanceof User) {
                $this->writeLogFile($this->getParam("username"), $e->getMessage());
                Logger::info("Login failed: " . $e);
            }
        }
        if ($user instanceof User && $user->getId() && $user->isActive() && $user->getPassword()) {
            Tool\Session::useSession(function ($adminSession) use($user) {
                $adminSession->user = $user;
                Tool\Session::regenerateId();
            });
            if ($this->getParam('deeplink')) {
                $this->redirect('/admin/login/deeplink/?' . $this->getParam('deeplink'));
            } else {
                $this->redirect("/admin/?_dc=" . time());
            }
        } else {
            $this->redirect("/admin/login/?auth_failed=true");
            exit;
        }
    }