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<?php |
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namespace App\Http\Middleware; |
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use Illuminate\Session\Store; |
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class ViewPostThrottleMiddleware |
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{ |
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/** |
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* Views will expire after 12 hours. |
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* |
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* @var int |
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*/ |
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protected $throttleTime = 43200; |
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/** |
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* @var Store |
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*/ |
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protected $session; |
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/** |
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* ViewThrottleMiddleware constructor. |
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* @param Store $session |
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*/ |
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public function __construct(Store $session) |
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{ |
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$this->session = $session; |
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} |
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/** |
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* Handle an incoming request. |
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* |
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* @param \Illuminate\Http\Request $request |
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* @param \Closure $next |
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* @param string|null $guard |
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* @return mixed |
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*/ |
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public function handle($request, \Closure $next, $guard = null) |
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{ |
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$posts = $this->getViewedPosts(); |
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if ( ! is_null($posts)) |
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{ |
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$posts = $this->cleanExpiredViews($posts); |
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$this->storePosts($posts); |
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} |
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return $next($request); |
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} |
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/** |
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* Get all the viewed posts from the session. If no |
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* entry in the session exists, default to null. |
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* |
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* @return mixed |
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*/ |
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private function getViewedPosts() |
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{ |
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return $this->session->get('viewed_posts', null); |
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} |
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/** |
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* Clean expired views. |
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* |
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* @param $posts |
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* @return array |
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*/ |
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private function cleanExpiredViews($posts) |
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{ |
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$time = time(); |
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// Filter through the post array. The argument passed to the |
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// function will be the value from the array, which is the |
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// timestamp in our case. |
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return array_filter($posts, function ($timestamp) use ($time) |
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{ |
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// If the view timestamp + the throttle time is |
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// still after the current timestamp the view |
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// has not expired yet, so we want to keep it. |
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return ($timestamp + $this->throttleTime) > $time; |
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}); |
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} |
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/** |
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* Push the post id onto the viewed_posts session array. |
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* |
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* @param $posts |
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*/ |
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private function storePosts($posts) |
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{ |
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$this->session->put('viewed_posts', $posts); |
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} |
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} |
nyacide /
amma
This check looks from parameters that have been defined for a function or method, but which are not used in the method body.