-

pkg/signalmeow/attachments.go

@@ -94,13 +94,14 @@ func DownloadAttachment(
 	var body []byte
 	var downloadedSize int64
 	if into == nil || resp.StatusCode > 400 {
-		body = make([]byte, resp.ContentLength)
+		body, err = io.ReadAll(resp.Body)
-		_, err = io.ReadFull(resp.Body, body)
 	} else {
+		if resp.ContentLength > 0 {
 			err = fallocate.Fallocate(into, int(resp.ContentLength))
 			if err != nil {
 				return nil, fmt.Errorf("failed to pre-allocate file for attachment: %w", err)
 			}
+		}
 		downloadedSize, err = io.Copy(into, resp.Body)
 	}
 	if err != nil {