Function setFolderEncryption

public/js/folderManager.js:2944–2978

(folder, encrypted)

}

async function setFolderEncryption(folder, encrypted) {
  try {
    const resp = await fetchWithCsrf('/api/folder/setFolderEncryption.php', {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ folder, encrypted: !!encrypted })
    });
    const data = await safeJson(resp);

    if (!data || data.ok !== true) {
      showToast((data && (data.error || data.message)) || t('folder_encryption_update_failed'), 'error');
      return;
    }

    // Update local UI for this folder + any rendered descendants
    const esc = CSS.escape(folder);
    const sel = `.folder-option[data-folder="${esc}"], .folder-option[data-folder^="${esc}/"]`;
    document.querySelectorAll(sel).forEach(opt => {
      opt.classList.toggle('encrypted', !!encrypted);
      const iconEl = opt.querySelector('.folder-icon');
      if (iconEl) {
        const kind = iconEl?.dataset?.kind || 'empty';
        // nosemgrep: javascript.browser.security.dom-xss.innerhtml
        iconEl.innerHTML = folderSVG(kind, { locked: opt.classList.contains('locked'), encrypted: opt.classList.contains('encrypted') });
      }
    });

    invalidateFolderCaches(folder);
    await applyFolderCapabilities(folder);
    showToast(encrypted ? t('folder_encryption_enabled') : t('folder_encryption_disabled'), 'success');
  } catch (e) {
    console.error('setFolderEncryption failed', e);
    showToast((e && e.message) ? e.message : t('folder_encryption_update_failed'), 'error');
  }
}

/* ----------------------
   Encryption v2: confirm + progress UI (minimizable)