invoiceninja/app/controllers/HomeController.php

<?php

use ninja\mailers\Mailer;

class HomeController extends BaseController
{
    protected $mailer;

    public function __construct(Mailer $mailer)
    {
        parent::__construct();

        $this->mailer = $mailer;
    }

    public function showIndex()
    {
        if (Utils::isNinja()) {
            return View::make('public.splash');
        } else {
            if (!Utils::isDatabaseSetup()) {
                return Redirect::to('/setup');
            } elseif (Account::count() == 0) {
                return Redirect::to('/invoice_now');
            } else {
                return Redirect::to('/login');
            }
        }
    }

    public function showAboutUs()
    {
        $data = [
            'title' => 'About Us',
            'description' => 'Invoice Ninja is an an open-source solution where you can create, customize, and generate invoices online for free using our templates!',
        ];

        return View::make('public.about_us', $data);
    }

    public function showContactUs()
    {
        $data = [
            'title' => 'Contact Us',
            'description' => 'Contact us today and try out our free or premium hassle-free plans. Start your online invoicing today with Invoice Ninja!',
        ];

        return View::make('public.contact_us', $data);
    }

    public function showTerms()
    {
        return View::make('public.terms');
    }

    public function showFaq()
    {
        return View::make('public.faq');
    }

    public function showFeatures()
    {
        return View::make('public.features');
    }

    public function showPlans()
    {
        $data = [
            'title' => 'Professional Invoicing Software & Templates',
            'description' => 'Invoice Ninja allows you to create and generate your own custom invoices. Choose from our professional invoice templates or customize your own with our pro plan.',
        ];

        return View::make('public.plans', $data);
    }
    public function showTestimonials()
    {
        return View::make('public.testimonials');
    }

    public function doContactUs()
    {
        $email = Input::get('email');
        $name = Input::get('name');
        $message = Input::get('message');

        $data = [
            'text' => $message,
        ];

        $this->mailer->sendTo(CONTACT_EMAIL, $email, $name, 'Invoice Ninja Feedback', 'contact', $data);

        $message = trans('texts.sent_message');
        Session::flash('message', $message);

        return View::make('public.contact_us');
    }

    public function showComingSoon()
    {
        return View::make('coming_soon');
    }

    public function showSecurePayment()
    {
        return View::make('secure_payment');
    }

    public function showCompare()
    {
        return View::make('public.compare');
    }

    public function invoiceNow()
    {
        if (Auth::check()) {
            return Redirect::to('invoices/create')->with('sign_up', Input::get('sign_up'));
        } else {
            return View::make('public.header', ['invoiceNow' => true]);
        }
    }

    public function newsFeed($userType, $version)
    {
        $response = Utils::getNewsFeedResponse($userType);

        return Response::json($response);
    }

    public function hideMessage()
    {
        if (Auth::check() && Session::has('news_feed_id')) {
            $newsFeedId = Session::get('news_feed_id');
            if ($newsFeedId != NEW_VERSION_AVAILABLE && $newsFeedId > Auth::user()->news_feed_id) {
                $user = Auth::user();
                $user->news_feed_id = $newsFeedId;
                $user->save();
            }

            Session::forget('news_feed_message');
        }

        return 'success';
    }

    public function logError()
    {
        return Utils::logError(Input::get('error'), 'JavaScript');
    }
}