If reload content failed, don’t update it

In case user wants a fresh version of the current one and the website isn’t available, don’t erase it with a boring message saying wallabag wasn’t able to refresh the content.

src/Wallabag/CoreBundle/Controller/EntryController.php

@@ -330,6 +330,15 @@ class EntryController extends Controller
 
         $this->updateEntry($entry, 'entry_reloaded');
 
+        // if refreshing entry failed, don't save it
+        if ($this->getParameter('wallabag_core.fetching_error_message') === $entry->getContent()) {
+            $bag = $this->get('session')->getFlashBag();
+            $bag->clear();
+            $bag->add('notice', 'flashes.entry.notice.entry_reloaded_failed');
+
+            return $this->redirect($this->generateUrl('view', ['id' => $entry->getId()]));
+        }
+
         $em = $this->getDoctrine()->getManager();
         $em->persist($entry);
         $em->flush();

src/Wallabag/CoreBundle/DependencyInjection/Configuration.php

@@ -39,6 +39,8 @@ class Configuration implements ConfigurationInterface
                 ->integerNode('cache_lifetime')
                     ->defaultValue(10)
                 ->end()
+                ->scalarNode('fetching_error_message')
+                ->end()
             ->end()
         ;
 

src/Wallabag/CoreBundle/DependencyInjection/WallabagCoreExtension.php

@@ -23,6 +23,7 @@ class WallabagCoreExtension extends Extension
         $container->setParameter('wallabag_core.version', $config['version']);
         $container->setParameter('wallabag_core.paypal_url', $config['paypal_url']);
         $container->setParameter('wallabag_core.cache_lifetime', $config['cache_lifetime']);
+        $container->setParameter('wallabag_core.fetching_error_message', $config['fetching_error_message']);
 
         $loader = new Loader\YamlFileLoader($container, new FileLocator(__DIR__.'/../Resources/config'));
         $loader->load('services.yml');

src/Wallabag/CoreBundle/Resources/config/services.yml

@@ -40,7 +40,7 @@ services:
         class: Graby\Graby
         arguments:
             -
-                error_message: "wallabag can't retrieve contents for this article. Please report this issue to us."
+                error_message: '%wallabag_core.fetching_error_message%'
                 http_client:
                     user_agents:
                         'lifehacker.com': 'PHP/5.2'