Function buildPreviewUrl

public/js/filePreview.js:49–60

(folder, name, sourceId = '')

// Build a preview URL that always goes through the API layer (respects ACLs/UPLOAD_DIR)
export function buildPreviewUrl(folder, name, sourceId = '') {
  const f = (!folder || folder === '') ? 'root' : String(folder);
  const params = new URLSearchParams({
    folder: f,
    file: name,
    inline: '1',
    t: String(Date.now())
  });
  const sid = resolvePreviewSourceId(sourceId, f, name);
  if (sid) params.set('sourceId', sid);
  return withBase(`/api/file/download.php?${params.toString()}`);
}

// New: build a download URL (attachment)
export function buildDownloadUrl(folder, name, sourceId = '') {