Allow wildcard day query

lib/Controller/ApiController.php

@@ -208,10 +208,21 @@ class ApiController extends Controller {
         }
         $uid = $user->getUID();
 
+        // Check for wildcard
+        $day_ids = [];
+        if ($id === "*") {
+            $day_ids = null;
+        } else {
             // Split at commas and convert all parts to int
             $day_ids = array_map(function ($part) {
                 return intval($part);
             }, explode(",", $id));
+        }
+
+        // Check if $day_ids is empty
+        if (!is_null($day_ids) && count($day_ids) === 0) {
+            return new JSONResponse([], Http::STATUS_OK);
+        }
 
         // Get the folder to show
         $folder = $this->getRequestFolder();

lib/Db/TimelineQueryDays.php

@@ -147,7 +147,7 @@ trait TimelineQueryDays {
     public function getDay(
         Folder &$folder,
         string $uid,
-        array $day_ids,
+        $day_ids,
         bool $recursive,
         bool $archive,
         array $queryTransforms = []
@@ -162,8 +162,15 @@ trait TimelineQueryDays {
         // when using DISTINCT on selected fields
         $query->select($fileid, 'f.etag', 'm.isvideo', 'vco.categoryid', 'm.datetaken', 'm.dayid')
             ->from('memories', 'm')
-            ->innerJoin('m', 'filecache', 'f', $this->getFilecacheJoinQuery($query, $folder, $recursive, $archive))
-            ->andWhere($query->expr()->in('m.dayid', $query->createNamedParameter($day_ids, IQueryBuilder::PARAM_INT_ARRAY)));
+            ->innerJoin('m', 'filecache', 'f', $this->getFilecacheJoinQuery($query, $folder, $recursive, $archive));
+
+        // Filter by dayid unless wildcard
+        if (!is_null($day_ids)) {
+            $query->andWhere($query->expr()->in('m.dayid', $query->createNamedParameter($day_ids, IQueryBuilder::PARAM_INT_ARRAY)));
+        } else {
+            // Limit wildcard to 100 results
+            $query->setMaxResults(100);
+        }
 
         // Add favorite field
         $this->addFavoriteTag($query, $uid);

lib/Db/TimelineQueryFilters.php

@@ -46,6 +46,10 @@ trait TimelineQueryFilters {
     }
 
     public function transformLimitDay(IQueryBuilder &$query, string $userId, int $limit) {
+        // The valid range for limit is 1 - 100; otherwise abort
+        if ($limit < 1 || $limit > 100) {
+            return;
+        }
         $query->setMaxResults($limit);
     }
 }