fix path issues on some other servers

appinfo/routes.php

@@ -7,6 +7,8 @@
  * The controller class has to be registered in the application.php file since
  * it's instantiated in there
  */
+
+$this->create('carnet_writer','/writer')->actionInclude('carnet/templates/writer.php');
 
 return [
     'routes' => [

templates/writer.php

@@ -1,19 +1,18 @@
 <?php
-$currentpath = getcwd()."/";
+$currentpath = __DIR__."/CarnetElectron/";
+$root = \OCP\Util::linkToAbsolute("carnet","templates");
 
-$file = file_get_contents($currentpath."CarnetElectron/reader/reader.html");
-$file = str_replace("<!ROOTPATH>", "CarnetElectron/", $file);
+$file = file_get_contents($currentpath."reader/reader.html");
+$file = str_replace("<!ROOTPATH>", $root."/CarnetElectron/", $file);
 
 $file = preg_replace_callback('/<script(.*?)src=\"(.*?\.js(?:\?.*?)?)"/s',function ($matches) {
     global $currentpath;
     return "<script".$matches[1]."src=\"".$matches[2]."?mtime=".filemtime($currentpath.$matches[2])."\"";
 }, $file);
 $root = substr(__DIR__, strlen($_SERVER['DOCUMENT_ROOT']));
-
-$file = str_replace("<!ROOTURL>", "CarnetElectron/", $file);
-$file = str_replace("<!APIURL>", "../../../index.php/apps/carnet/", $file);
-
-
+$urlGenerator = \OC::$server->getURLGenerator();
+$file = str_replace("<!ROOTURL>", $root."/CarnetElectron/", $file);
+$file = str_replace("<!APIURL>", $urlGenerator->linkToRouteAbsolute("carnet.page.index"), $file);
 echo $file;
 
 ?>