Fix default config to reduce the minimum things to change.

Removed Nginx limitations which are not true anymore.

config_default.php

@@ -12,17 +12,16 @@
     /*
      * The directory containing calibre's metadata.db file, with sub-directories
      * containing all the formats.
-     * If this directory starts with a / EPUB download will only work with Nginx
-     * and the calibre_internal_directory has to be set properly
      * BEWARE : it has to end with a /
      */
     $config['calibre_directory'] = './';
     
     /*
+     * SPECIFIC TO NGINX
      * The internal directory set in nginx config file
-     * or the same directory as calibre_directory with X-Sendfile
+     * Leave empty if you don't know what you're doing
      */
-    $config['calibre_internal_directory'] = '/Calibre/'; 
+    $config['calibre_internal_directory'] = ''; 
 
     /*
      * Full URL prefix (with trailing /)

fetch.php

@@ -98,13 +98,18 @@
         header('Content-Disposition: attachment; filename="' . basename ($file) . '"');
     }
     
+    $dir = $config['calibre_internal_directory'];
+    if (empty ($config['calibre_internal_directory'])) {
+        $dir = $config['calibre_directory'];
+    }
+    
     if (empty ($config['cops_x_accel_redirect'])) {
-        $filename = $config['calibre_internal_directory'] . $file;
+        $filename = $dir . $file;
         $fp = fopen($filename, 'rb');
         header("Content-Length: " . filesize($filename));
         fpassthru($fp);
     }
     else {
-        header ($config['cops_x_accel_redirect'] . ": " . $config['calibre_internal_directory'] . $file);
+        header ($config['cops_x_accel_redirect'] . ": " . $dir . $file);
     }
 ?>