owen-it / laravel-auditing

     *

     * @return mixed|null

     */

    protected function resolveUser()

    {

        $userResolver = Config::get('audit.resolver.user');

        if (is_subclass_of($userResolver, UserResolver::class)) {

            return call_user_func([$userResolver, 'resolve']);

        }

        throw new AuditingException('Invalid UserResolver implementation');

    }

    /**

     * Resolve the URL.

     *

     * @return string

     */

    protected function resolveUrl(): string

    {

        $urlResolver = Config::get('audit.resolver.url');

        if (is_subclass_of($urlResolver, UrlResolver::class)) {

            return call_user_func([$urlResolver, 'resolve']);

        }

        throw new AuditingException('Invalid UrlResolver implementation');

    }

    /**

     * Resolve the IP Address.

     *

     * @return string

     */

    protected function resolveIpAddress(): string

    {

        $ipAddressResolver = Config::get('audit.resolver.ip_address');

        if (is_subclass_of($ipAddressResolver, IpAddressResolver::class)) {

            return call_user_func([$ipAddressResolver, 'resolve']);

        }

        throw new AuditingException('Invalid IpAddressResolver implementation');

    }

    /**

     * Resolve the User Agent.

     *

     * @return string|null

     */

    protected function resolveUserAgent()

    {

        $userAgentResolver = Config::get('audit.resolver.user_agent');

        if (is_subclass_of($userAgentResolver, UserAgentResolver::class)) {

            return call_user_func([$userAgentResolver, 'resolve']);

        }

        throw new AuditingException('Invalid UserAgentResolver implementation');

    }

    /**

     * Determine if an attribute is eligible for auditing.