2 files changed, 26 insertions, 4 deletions

diff --git a/src/Wallabag/CoreBundle/Command/InstallCommand.php b/src/Wallabag/CoreBundle/Command/InstallCommand.php
index bd7b55f9..3873d2d3 100644
--- a/src/Wallabag/CoreBundle/Command/InstallCommand.php
+++ b/src/Wallabag/CoreBundle/Command/InstallCommand.php
@@ -71,8 +71,10 @@ class InstallCommand extends ContainerAwareCommand
     {
         $this->defaultOutput->writeln('<info><comment>Step 1 of 4.</comment> Checking system requirements.</info>');
 
-        $fulfilled = true;
+        $rows = [];
 
+        // testing if database driver exists
+        $fulfilled = true;
         $label = '<comment>PDO Driver</comment>';
         $status = '<info>OK!</info>';
         $help = '';
@@ -83,7 +85,23 @@ class InstallCommand extends ContainerAwareCommand
             $help = 'Database driver "'.$this->getContainer()->getParameter('database_driver').'" is not installed.';
         }
 
-        $rows = [];
+        $rows[] = [$label, $status, $help];
+
+        // testing if connection to the database can be etablished
+        $label = '<comment>Database connection</comment>';
+        $status = '<info>OK!</info>';
+        $help = '';
+
+        try {
+            $this->getContainer()->get('doctrine')->getManager()->getConnection()->connect();
+        } catch (\Exception $e) {
+            if (false === strpos($e->getMessage(), 'Unknown database')) {
+                $fulfilled = false;
+                $status = '<error>ERROR!</error>';
+                $help = 'Can\'t connect to the database: '.$e->getMessage();
+            }
+        }
+
         $rows[] = [$label, $status, $help];
 
         foreach ($this->functionExists as $functionRequired) {
@@ -451,7 +469,7 @@ class InstallCommand extends ContainerAwareCommand
         }
 
         // custom verification for sqlite, since `getListDatabasesSQL` doesn't work for sqlite
-        if ('sqlite' == $schemaManager->getDatabasePlatform()->getName()) {
+        if ('sqlite' === $schemaManager->getDatabasePlatform()->getName()) {
             $params = $this->getContainer()->get('doctrine.dbal.default_connection')->getParams();
 
             if (isset($params['path']) && file_exists($params['path'])) {
diff --git a/src/Wallabag/CoreBundle/Helper/EntriesExport.php b/src/Wallabag/CoreBundle/Helper/EntriesExport.php
index 73276319..1dfa12c8 100644
--- a/src/Wallabag/CoreBundle/Helper/EntriesExport.php
+++ b/src/Wallabag/CoreBundle/Helper/EntriesExport.php
@@ -163,8 +163,12 @@ class EntriesExport
                 $book->setSubject($tag['value']);
             }
 
+            // the reader in Kobo Devices doesn't likes special caracters
+            // in filenames, we limit to A-z/0-9
+            $filename = preg_replace('/[^A-Za-z0-9\-]/', '', $entry->getTitle());
+
             $chapter = $content_start.$entry->getContent().$bookEnd;
-            $book->addChapter($entry->getTitle(), htmlspecialchars($entry->getTitle()).'.html', $chapter, true, EPub::EXTERNAL_REF_ADD);
+            $book->addChapter($entry->getTitle(), htmlspecialchars($filename).'.html', $chapter, true, EPub::EXTERNAL_REF_ADD);
         }
 
         return Response::create(