Piwik\Plugins\Login\Auth::authenticateWithPassword PHP Method

    private function authenticateWithPassword($login, $passwordHash)
    {
        $user = $this->userModel->getUser($login);
        if (empty($user['login'])) {
            return new AuthResult(AuthResult::FAILURE, $login, null);
        }
        if ($this->passwordHelper->verify($passwordHash, $user['password'])) {
            if ($this->passwordHelper->needsRehash($user['password'])) {
                $newPasswordHash = $this->passwordHelper->hash($passwordHash);
                $this->userModel->updateUser($login, $newPasswordHash, $user['email'], $user['alias'], $user['token_auth']);
            }
            return $this->authenticationSuccess($user);
        }
        return new AuthResult(AuthResult::FAILURE, $login, null);
    }