Fix filename for shared folders

lib/Controller/ApiController.php

@@ -87,13 +87,8 @@ class ApiController extends Controller
      */
     public function days(): JSONResponse
     {
-        $user = $this->userSession->getUser();
-        if (null === $user && !$this->getShareToken()) {
-            return new JSONResponse([], Http::STATUS_PRECONDITION_FAILED);
-        }
-        $uid = $user ? $user->getUID() : '';
-
         // Get the folder to show
+        $uid = $this->getUid();
         $folder = null;
 
         try {
@@ -122,7 +117,7 @@ class ApiController extends Controller
             );
 
             // Preload some day responses
-            $this->preloadDays($list, $folder, $recursive, $archive);
+            $this->preloadDays($list, $uid, $folder, $recursive, $archive);
 
             // Add subfolder info if querying non-recursively
             if (!$recursive) {
@@ -157,11 +152,8 @@ class ApiController extends Controller
      */
     public function day(string $id): JSONResponse
     {
-        $user = $this->userSession->getUser();
+        // Get user
-        if (null === $user && !$this->getShareToken()) {
+        $uid = $this->getUid();
-            return new JSONResponse([], Http::STATUS_PRECONDITION_FAILED);
-        }
-        $uid = $user ? $user->getUID() : '';
 
         // Check for wildcard
         $day_ids = [];
@@ -698,6 +690,19 @@ class ApiController extends Controller
         return $response;
     }
 
+    /** Get logged in user's UID or throw HTTP error */
+    private function getUid(): string
+    {
+        $user = $this->userSession->getUser();
+        if ($this->getShareToken()) {
+            $user = null;
+        } elseif (null === $user) {
+            return new JSONResponse([], Http::STATUS_PRECONDITION_FAILED);
+        }
+
+        return $user ? $user->getUID() : '';
+    }
+
     /**
      * Get transformations depending on the request.
      *
@@ -768,15 +773,13 @@ class ApiController extends Controller
      * Preload a few "day" at the start of "days" response.
      *
      * @param array       $days      the days array
+     * @param string      $uid       User ID or blank for public shares
      * @param null|Folder $folder    the folder to search in
      * @param bool        $recursive search in subfolders
      * @param bool        $archive   search in archive folder only
      */
-    private function preloadDays(array &$days, &$folder, bool $recursive, bool $archive)
+    private function preloadDays(array &$days, string $uid, &$folder, bool $recursive, bool $archive)
     {
-        $user = $this->userSession->getUser();
-        $uid = $user ? $user->getUID() : '';
-
         $transforms = $this->getTransformations(false);
         $preloaded = 0;
         $preloadDayIds = [];
@@ -822,9 +825,7 @@ class ApiController extends Controller
     /** Get the Folder object relevant to the request */
     private function getRequestFolder()
     {
-        $user = $this->userSession->getUser();
+        // Public shared folder
-        if (null === $user) {
-            // Public shares only
         if ($token = $this->getShareToken()) {
             $share = $this->shareManager->getShareByToken($token)->getNode(); // throws exception if not found
             if (!$share instanceof Folder) {
@@ -834,9 +835,11 @@ class ApiController extends Controller
             return $share;
         }
 
+        // Anything else needs a user
+        $user = $this->userSession->getUser();
+        if (null === $user) {
             return null;
         }
-
         $uid = $user->getUID();
 
         $folder = null;

lib/Db/TimelineQueryDays.php

@@ -136,7 +136,7 @@ trait TimelineQueryDays
         $rows = $cursor->fetchAll();
         $cursor->closeCursor();
 
-        return $this->processDay($rows, $folder);
+        return $this->processDay($rows, $uid, $folder);
     }
 
     /**
@@ -158,12 +158,13 @@ trait TimelineQueryDays
      * Process the single day response.
      *
      * @param array       $day
+     * @param string      $uid    User or blank if not logged in
      * @param null|Folder $folder
      */
-    private function processDay(&$day, $folder)
+    private function processDay(&$day, $uid, $folder)
     {
         $basePath = '#__#__#';
-        $davPath = '/';
+        $davPath = '';
         if (null !== $folder) {
             // No way to get the internal path from the folder
             $query = $this->connection->getQueryBuilder();
@@ -177,6 +178,8 @@ trait TimelineQueryDays
             // Get user facing path
             // getPath looks like /user/files/... but we want /files/user/...
             // Split at / and swap these
+            // For public shares, we just give the relative path
+            if (!empty($uid)) {
                 $actualPath = $folder->getPath();
                 $actualPath = explode('/', $actualPath);
                 if (\count($actualPath) >= 3) {
@@ -186,6 +189,7 @@ trait TimelineQueryDays
                     $davPath = implode('/', $actualPath);
                 }
             }
+        }
 
         foreach ($day as &$row) {
             // We don't need date taken (see query builder)