diff --git a/src/Controller/WopiController.php b/src/Controller/WopiController.php
index 103316c8..4fc5f0cc 100644
--- a/src/Controller/WopiController.php
+++ b/src/Controller/WopiController.php
@@ -51,7 +51,7 @@ public static function permissionDenied(): Response {
      * @return \Symfony\Component\HttpFoundation\Response
      *   The response with file contents.
      */
-    public function wopiCheckFileInfo(string $id, Request $request) {
+    function wopiCheckFileInfo(string $id, Request $request) {
         $token = $request->query->get('access_token');
 
         $jwt_payload = CoolUtils::verifyTokenForId($token, $id);
@@ -119,7 +119,7 @@ public function wopiCheckFileInfo(string $id, Request $request) {
      * @return \Symfony\Component\HttpFoundation\Response
      *   The response with file contents.
      */
-    public function wopiGetFile(string $id, Request $request) {
+    function wopiGetFile(string $id, Request $request) {
         $token = $request->query->get('access_token');
 
         $jwt_payload = CoolUtils::verifyTokenForId($token, $id);
@@ -144,7 +144,7 @@ public function wopiGetFile(string $id, Request $request) {
     }
 
     /**
-     * Handles the wopi "save" request for a media entity.
+     * Handles the wopi "save" request for a media entity..
      *
      * @param string $id
      *   Media id from url.
@@ -154,7 +154,7 @@ public function wopiGetFile(string $id, Request $request) {
      * @return \Symfony\Component\HttpFoundation\Response
      *   The response.
      */
-    public function wopiPutFile(string $id, Request $request) {
+    function wopiPutFile(string $id, Request $request) {
         $token = $request->query->get('access_token');
         $timestamp = $request->headers->get('x-cool-wopi-timestamp');
         $modified_by_user = $request->headers->get('x-cool-wopi-ismodifiedbyuser') == 'true';
diff --git a/src/Cool/CoolRequest.php b/src/Cool/CoolRequest.php
index 631457aa..71c24084 100644
--- a/src/Cool/CoolRequest.php
+++ b/src/Cool/CoolRequest.php
@@ -32,8 +32,8 @@ function getDiscovery($server) {
 
     $stream_context = stream_context_create([
         'ssl' => [
-            'verify_peer'       => !$disable_checks,
-            'verify_peer_name'  => !$disable_checks,
+            'verify_peer' => !$disable_checks,
+            'verify_peer_name' => !$disable_checks,
         ],
     ]);
     $res = file_get_contents($discovery_url, FALSE, $stream_context);
diff --git a/src/Cool/CoolUtils.php b/src/Cool/CoolUtils.php
index f8c4b8e3..5c212336 100644
--- a/src/Cool/CoolUtils.php
+++ b/src/Cool/CoolUtils.php
@@ -73,7 +73,7 @@ public static function setMediaSource(Media $media, File $source) {
      * @return string
      *   The key value.
      */
-    public static function getKey() {
+    static function getKey() {
         $default_config = \Drupal::config('collabora_online.settings');
         $key_id = $default_config->get('cool')['key_id'];
 
@@ -110,8 +110,7 @@ public static function verifyTokenForId(
             if ($payload && ($payload->fid == $id) && ($payload->exp >= gettimeofday(TRUE))) {
                 return $payload;
             }
-        }
-        catch (\Exception $e) {
+        } catch (\Exception $e) {
             \Drupal::logger('cool')->error($e->getMessage());
         }
         return NULL;
@@ -218,11 +217,10 @@ public static function getDocumentType(File $file) {
      * @return \Drupal\Core\Url
      *   Editor url to visit as full-page, or to embed in an iframe.
      */
-    public static function getEditorUrl(Media $media, $can_write = FALSE) {
+    public static function getEditorUrl(Media $media, $can_write = false) {
         if ($can_write) {
             return Url::fromRoute('collabora-online.edit', ['media' => $media->id()]);
-        }
-        else {
+        } else {
             return Url::fromRoute('collabora-online.view', ['media' => $media->id()]);
         }
     }