invoiceninja/app/Http/Middleware/StartupCheck.php

<?php namespace App\Http\Middleware;

use Closure;
use Utils;
use App;
use Auth;
use Input;
use Redirect;
use Cache;
use Session;
use Event;

use App\Models\Currency;
use App\Events\UserSettingsChanged;

class StartupCheck {

	/**
	 * Handle an incoming request.
	 *
	 * @param  \Illuminate\Http\Request  $request
	 * @param  \Closure  $next
	 * @return mixed
	 */
	public function handle($request, Closure $next)
	{
		// Ensure all request are over HTTPS in production
		if (App::environment() == ENV_PRODUCTION)
		{
			if (!Request::secure()) 
			{
			  return Redirect::secure(Request::getRequestUri());      
			}
		}

		// If the database doens't yet exist we'll skip the rest
		if (!Utils::isNinja() && !Utils::isDatabaseSetup())
		{
			return $next($request);
		}

        // Check currency data has been cached
        if (!Cache::has('currencies'))
        {
            Cache::forever('currencies', Currency::orderBy('name')->get());
        }


		// check the application is up to date and for any news feed messages
		if (Auth::check())
		{
			$count = Session::get(SESSION_COUNTER, 0);
			Session::put(SESSION_COUNTER, ++$count);

			if (!Utils::startsWith($_SERVER['REQUEST_URI'], '/news_feed') && !Session::has('news_feed_id')) {
			  $data = false;
			  if (Utils::isNinja()) {
			    $data = Utils::getNewsFeedResponse();
			  } else {
			    $file = @file_get_contents(NINJA_APP_URL . '/news_feed/' . Utils::getUserType() . '/' . NINJA_VERSION);
			    $data = @json_decode($file);
			  }      
			  if ($data) {        
			    if ($data->version != NINJA_VERSION) {
			      $params = [
			        'user_version' => NINJA_VERSION, 
			        'latest_version'=> $data->version,
			        'releases_link' => link_to(RELEASES_URL, 'Invoice Ninja', ['target' => '_blank'])
			      ];
			      Session::put('news_feed_id', NEW_VERSION_AVAILABLE);
			      Session::put('news_feed_message', trans('texts.new_version_available', $params));
			    } else {
			      Session::put('news_feed_id', $data->id);
			      if ($data->message && $data->id > Auth::user()->news_feed_id) {
			        Session::put('news_feed_message', $data->message);
			      }
			    }        
			  } else {
			    Session::put('news_feed_id', true);
			  }
			} 
		} 


		// Check if we're requesting to change the account's language
		if (Input::has('lang'))
		{
			$locale = Input::get('lang');
			App::setLocale($locale);
			Session::set(SESSION_LOCALE, $locale);    

			if (Auth::check())
			{
			  if ($language = Language::whereLocale($locale)->first())
			  {
			    $account = Auth::user()->account;
			    $account->language_id = $language->id;
			    $account->save();
			  }
			}
		} 
		else if (Auth::check())
		{
			$locale = Session::get(SESSION_LOCALE, DEFAULT_LOCALE);
			App::setLocale($locale);    
		}

		// Make sure the account/user localization settings are in the session
		if (Auth::check() && !Session::has(SESSION_TIMEZONE)) 
		{
            Event::fire(new UserSettingsChanged());
		}

		// Check if the user is claiming a license (ie, additional invoices, white label, etc.)
		$claimingLicense = Utils::startsWith($_SERVER['REQUEST_URI'], '/claim_license');
		if (!$claimingLicense && Input::has('license_key') && Input::has('product_id'))
		{
			$licenseKey = Input::get('license_key');
			$productId = Input::get('product_id');

			$data = trim(file_get_contents((Utils::isNinjaDev() ? 'http://ninja.dev' : NINJA_APP_URL) . "/claim_license?license_key={$licenseKey}&product_id={$productId}"));

			if ($productId == PRODUCT_INVOICE_DESIGNS)
			{
			  if ($data = json_decode($data))
			  {
			    foreach ($data as $item)
			    {
			      $design = new InvoiceDesign();
			      $design->id = $item->id;
			      $design->name = $item->name;
			      $design->javascript = $item->javascript;
			      $design->save();
			    }

			    if (!Utils::isNinjaProd()) {
			      Cache::forget('invoice_designs_cache_' . Auth::user()->maxInvoiceDesignId());
			    }

			    Session::flash('message', trans('texts.bought_designs'));
			  }
			}
			else if ($productId == PRODUCT_WHITE_LABEL)
			{
			  if ($data == 'valid')
			  {
			    $account = Auth::user()->account;
			    $account->pro_plan_paid = NINJA_DATE;
			    $account->save();

			    Session::flash('message', trans('texts.bought_white_label'));
			  }
			}
		}
        
		return $next($request);
	}

}