EVE-KILL / zKillboard

classes/pageCache.php

<?php

class pageCache extends \Slim\Middleware

{

	public function call()

	{

		global $theme;

		if(User::isLoggedIn())

		{

			$this->next->call();

			return;

		}


		$pageURL = $this->app->request()->getResourceUri();

		$md5 = md5($pageURL . $theme);

		$fileCache = new FileCache();


		// Pages to cache

		$pages = array(

			"/kill/" => 60*60*24, // Kill detail pages can easily be cached for many hours since they rarely change..

			"/system/" => 60*60, // 1 hour cache on the system page

			"/region/" => 60*60, // 1 hour cache on the region page

			"/group/" => 60*60, // 1 hour cache on the groups view

			"/ship/" => 60*15, // 15 minutes on ship view

			"/character/" => 60*5, // 5 minutes on character view

			"/corporation/" => 60*5, // 5 minutes on corporation view

			"/alliance/" => 60*5, // 5 minutes on alliance view

			"/faction/" => 60*15, // 15 minutes on faction view

			"/item/" => 60*60*24, // 1 Day on item view, shit barely changes..

			"/information/" => 60*5, // 5 minutes on information, tho it's probably not needed tbh

		);


		// Default cachetime is 0seconds

		$cacheTime = 0;

		foreach($pages as $page => $cTime)

		{

			if(stristr($pageURL, $page)) // Only do shit on the kill page for now... Shou

			{

				$cacheTime = $cTime;

			}

		}


		// Default headers

		header("X-PageCache: false");

		header("X-PageCache-Time: {$cacheTime}");


		// Application response

		$rsp = $this->app->response();


		// Get the cached result if it exists

		$data = $fileCache->get($md5);

		if (isset($data) && !empty($data["body"]))

		{

			// cache hit... return the cached content

			header("X-PageCache: true");

			$rsp["Content-Type"] = $data["content_type"];

			$rsp->body($data["body"]);

The method body cannot be called on $rsp (of type array<string,?,{"Content-Type":"?"}>).

			return;

		}


		// cache miss... continue on to generate the page

		$this->next->call();


		// cache result for future look up

		if ($rsp->status() == 200) {

			if($cacheTime > 0)

				$fileCache->set($md5, array("key" => $pageURL, "content_type" => $rsp["Content-Type"], "body" => $rsp->body()), $cacheTime);

		}

	}

}