fix file listing when there are not files in a directory

release checklist.md

@@ -1,3 +1,5 @@
+- [ ] Fix directory zip download incorrect file modification dates
+- [ ] Set systemd service to deny access outside of the root file path
 - [ ] Clean up code
 
 ## Config
@@ -13,4 +15,5 @@
     - [ ] Modified
     - [ ] Size
 - [ ] Admin endpoint to fetch the last `n` modified files
+- [ ] Add an endpoint to get info for a specific file
 - [ ] Document API

src/api/routes/file/List.go

@@ -106,40 +106,46 @@ func APIList(w http.ResponseWriter, r *http.Request) {
 	// Generate the listing.
 	pageParam := r.URL.Query().Get("page")
 	response := map[string]interface{}{}
-	item, pages, responseError := generateListing(cacheItem, paginationLimit, sortType, pageParam)
-	if responseError != "" {
-		helpers.Return400Msg(responseError, w)
-		return
-	}
 
-	resolveItemName := r.URL.Query().Get("resolve")
-	if resolveItemName != "" {
-		var resolvedChild *responseitem.ResponseItem
-		var resolvedChildPage int
-	outer:
-		for i, page := range pages {
-			for _, child := range page {
-				if child.Name == resolveItemName {
-					resolvedChild = child
-					resolvedChildPage = i
-					break outer
-				}
-			}
-		}
-		if resolvedChild == nil {
-			helpers.Return400Msg("failed to find item", w)
+	if len(cacheItem.Children) > 0 {
+		item, pages, responseError := generateListing(cacheItem, paginationLimit, sortType, pageParam)
+		if responseError != "" {
+			helpers.Return400Msg(responseError, w)
 			return
 		}
-		item.Children = make([]*responseitem.ResponseItem, 1)
-		item.Children[0] = resolvedChild
-		response["resolved_page"] = resolvedChildPage + 1
+
+		resolveItemName := r.URL.Query().Get("resolve")
+		if resolveItemName != "" {
+			var resolvedChild *responseitem.ResponseItem
+			var resolvedChildPage int
+		outer:
+			for i, page := range pages {
+				for _, child := range page {
+					if child.Name == resolveItemName {
+						resolvedChild = child
+						resolvedChildPage = i
+						break outer
+					}
+				}
+			}
+			if resolvedChild == nil {
+				helpers.Return400Msg("failed to find item", w)
+				return
+			}
+			item.Children = make([]*responseitem.ResponseItem, 1)
+			item.Children[0] = resolvedChild
+			response["resolved_page"] = resolvedChildPage + 1
+		}
+
+		if pageParam != "" || resolveItemName != "" {
+			response["total_pages"] = len(pages) // + 1 // We add 1 to the count because arrays are zero-indexed.
+		}
+		response["item"] = item
+	} else {
+		response["item"] = cacheItem
+		response["total_pages"] = 0
 	}
 
-	if pageParam != "" || resolveItemName != "" {
-		response["total_pages"] = len(pages) // + 1 // We add 1 to the count because arrays are zero-indexed.
-	}
-
-	response["item"] = item
 	helpers.WriteJsonResponse(response, true, w, r)
 }