hotline #16456 - Asynchronous retrieving of web thumbnails.

This avoid timeout when a search result contains a lot of
thumbnail's web-sites to download.

VERSIONS

+- ticket #16456: Les webthumbnails sont récupérés de manière asynchrone pour éviter un timeout lors d'une recherche.
+
 30/09/2014 - v6.53.1
 
 - correction compatiblité PHP5.4

application/modules/opac/controllers/SitoController.php

@@ -74,6 +74,23 @@ class SitoController extends Zend_Controller_Action {
 		$this->view->title = $this->view->_("Sélection de sites");
 	}
 
+
+	public function webthumbnailAction() {
+		$viewRenderer = $this->getHelper('ViewRenderer');
+		$viewRenderer->setNoRender();
+		session_write_close();
+
+		$url = $this->_getParam('url');
+		$webThumbnail =  $this->view->getHelper('WebThumbnail');
+		$filename = $webThumbnail->fileNameFromUrl($url);
+		$filepath = $webThumbnail->fullPath($filename);
+
+		if (!$webThumbnail->getThumbnailer()->fetchUrlToFile($url, $filepath))
+			$this->_redirect('');
+
+		$this->_redirect($webThumbnail->fullUrl($filename));
+	}
+
 }
 
 ?>

library/ZendAfi/View/Helper/WebThumbnail.php

@@ -33,10 +33,8 @@ class ZendAfi_View_Helper_WebThumbnail extends ZendAfi_View_Helper_BaseHelper {
 		$filename = $this->fileNameFromUrl($url);
 		$filepath = $this->fullPath($filename);
 		
-		if (!file_exists($filepath)) {
-			if (!$this->getThumbnailer()->fetchUrlToFile($url, $filepath))
-				return '';
-		}
+		if (!file_exists($filepath))
+			return BASE_URL."/sito/webthumbnail?url=$url";
 
 		return $this->fullUrl($filename);
 	}