[bridges] Use caching with applicable bridges

bridges/JapanExpoBridge.php

@@ -1,5 +1,5 @@
 <?php
-class JapanExpoBridge extends BridgeAbstract{
+class JapanExpoBridge extends HttpCachingBridgeAbstract {
 
     public function loadMetadatas() {
         $this->maintainer = 'Ginko';
@@ -64,7 +64,10 @@ class JapanExpoBridge extends BridgeAbstract{
 
             if ($fullcontent) {
                 if ($count < 5) {
-                    $article_html = $this->getSimpleHTMLDOM($url) or $this->returnServerError('Could not request JapanExpo: '.$url);
+                    if($this->get_cached_time($url) <= strtotime('-24 hours'))
+                        $this->remove_from_cache($url);
+
+                    $article_html = $this->get_cached($url) or $this->returnServerError('Could not request JapanExpo: '.$url);
                     $header = $article_html->find('header.pageHeadBox', 0);
                     $timestamp = strtotime($header->find('time', 0)->datetime);
                     $title_html = $header->find('div.section', 0)->next_sibling();

bridges/KununuBridge.php

@@ -1,5 +1,5 @@
 <?php
-class KununuBridge extends BridgeAbstract{
+class KununuBridge extends HttpCachingBridgeAbstract {
 	public function loadMetadatas(){
 		$this->maintainer = "logmanoriginal";
 		$this->name = "Kununu Bridge"; /* This will be replaced later! */
@@ -248,7 +248,10 @@ class KununuBridge extends BridgeAbstract{
 	*/
 	private function extract_full_description($uri){
 		// Load full article
-		$html = $this->getSimpleHTMLDOM($uri);
+		if($this->get_cached_time($uri) <= strtotime('-24 hours'))
+			$this->remove_from_cache($uri);
+
+		$html = $this->get_cached($uri);
 		if($html === false)
 			$this->returnServerError('Could not load full description!');
 

bridges/LichessBridge.php

@@ -1,6 +1,6 @@
 <?php
 
-class LichessBridge  extends BridgeAbstract
+class LichessBridge  extends HttpCachingBridgeAbstract
 {
     public function loadMetadatas()
     {
@@ -36,7 +36,10 @@ class LichessBridge  extends BridgeAbstract
 
     private function retrieve_lichess_post($blog_post_uri)
     {
-        $blog_post_html = $this->getSimpleHTMLDOM($blog_post_uri);
+        if($this->get_cached_time($blog_post_uri) <= strtotime('-24 hours'))
+            $this->remove_from_cache($blog_post_uriuri);
+
+        $blog_post_html = $this->get_cached($blog_post_uri);
         $blog_post_div  = $blog_post_html->find('#lichess_blog', 0);
 
         $post_chapo   = $blog_post_div->find('.shortlede', 0)->innertext;

bridges/NumeramaBridge.php

@@ -1,5 +1,5 @@
 <?php
-class NumeramaBridge extends BridgeAbstract{
+class NumeramaBridge extends HttpCachingBridgeAbstract {
 
     public function loadMetadatas() {
 
@@ -31,7 +31,10 @@ class NumeramaBridge extends BridgeAbstract{
                 $item['timestamp'] = strtotime($element->find('pubDate', 0)->plaintext);
 
                 $article_url = NumeramaStripCDATA($element->find('guid', 0)->plaintext);
-                $article_html = $this->getSimpleHTMLDOM($article_url) or $this->returnServerError('Could not request Numerama: '.$article_url);
+                if($this->get_cached_time($article_url) <= strtotime('-24 hours'))
+                    $this->remove_from_cache($article_url);
+
+                $article_html = $this->get_cached($article_url) or $this->returnServerError('Could not request Numerama: '.$article_url);
                 $contents = $article_html->find('section[class=related-article]', 0)->innertext = ''; // remove related articles block
                 $contents = '<img alt="" style="max-width:300px;" src="'.$article_html->find('meta[property=og:image]', 0)->getAttribute('content').'">'; // add post picture
                 $contents = $contents.$article_html->find('article[class=post-content]', 0)->innertext; // extract the post

bridges/WordPressBridge.php

@@ -1,7 +1,7 @@
 <?php
 define('WORDPRESS_TYPE_ATOM', 1); // Content is of type ATOM
 define('WORDPRESS_TYPE_RSS', 2); // Content is of type RSS
-class WordPressBridge extends BridgeAbstract {
+class WordPressBridge extends HttpCachingBridgeAbstract {
 
 	private $url;
 	public $sitename; // Name of the site
@@ -95,7 +95,10 @@ class WordPressBridge extends BridgeAbstract {
 						$item['timestamp'] = strtotime($article->find('updated', 0)->innertext);
 					}
 
-					$article_html = $this->getSimpleHTMLDOM($item['uri']);
+					if($this->get_cached_time($item['uri']) <= strtotime('-24 hours'))
+						$this->remove_from_cache($item['uri']);
+
+					$article_html = $this->get_cached($item['uri']);
 
 					// Attempt to find most common content div
 					if(!isset($item['content'])){