Remove user rename feature; add www-data hint in WebDAV edit modal

- Removed PATCH /api/users/<name> route (rename_user)
- Removed renameModal from index.html
- Removed openRenameModal/submitRename from users.js
- Removed Rename button from users table
- Removed rename docs from README
- Added green info box in WebDAV edit modal: set group=www-data, mode=775

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

README.md

@@ -111,8 +111,6 @@ All routes require a login session. On first run you are redirected to `/setup`
 
 Users created in MicroNAS are standard Linux system accounts (`useradd -M -s /usr/sbin/nologin`). Their password is set in both the Linux shadow file (via `smbpasswd`) and the WebDAV htpasswd file automatically.
 
-**Rename** — the Rename button in the Users tab renames the Linux account (`usermod -l`). Because SMB and WebDAV store passwords by username, those entries are removed and must be reset after a rename. The UI shows a warning prompt.
-
 **Delete** — removes the Linux account, SMB entry, and WebDAV htpasswd entry.
 
 **Password change** — updates SMB and WebDAV passwords in sync. Changing a user's password also re-registers them in WebDAV if they were created before WebDAV was installed.

app.py

@@ -936,27 +936,6 @@ def change_admin_credentials():
     return jsonify({'status': 'updated'})
 
 
-@app.route('/api/users/<name>', methods=['PATCH'])
-@require_auth
-def rename_user(name):
-    if not VALID_NAME.match(name):
-        return jsonify({'error': 'invalid username'}), 400
-    new_name = (request.json or {}).get('name', '').strip()
-    if not new_name or not VALID_NAME.match(new_name):
-        return jsonify({'error': 'invalid new username'}), 400
-    if new_name == name:
-        return jsonify({'status': 'no change'}), 200
-
-    r = subprocess.run(['usermod', '-l', new_name, name], capture_output=True, text=True)
-    if r.returncode != 0:
-        return jsonify({'error': r.stderr.strip() or 'usermod failed'}), 500
-
-    # Remove SMB and WebDAV entries — password must be reset after rename
-    subprocess.run(['smbpasswd', '-x', name], capture_output=True)
-    _remove_webdav_user(name)
-    return jsonify({'status': 'renamed',
-                    'warning': 'SMB and WebDAV password must be reset for the renamed user.'})
-
 
 @app.route('/api/users/<name>/password', methods=['POST'])
 @require_auth

static/js/shares.js

@@ -259,6 +259,11 @@ async function openEditModal(type, share) {
                 </label>
                 <input type="text" id="editWebdavUsers" class="form-control" value="${esc(share.users || '')}">
             </div>
+            <div class="mb-3 px-2 py-2 rounded" style="background:#1a2a1a; border:1px solid #2d4a2d; font-size:.82rem; color:#8dba8d">
+                WebDAV writes files as <code style="color:#3fb950">www-data</code>.
+                Set the folder group to <code style="color:#3fb950">www-data</code> and mode to <code style="color:#3fb950">775</code> below,
+                or add <code style="color:#3fb950">www-data</code> to your share group.
+            </div>
             ${permSection}`;
     } else {
         const isRo = /\(ro[,)]/.test(share.clients);

static/js/users.js

@@ -22,8 +22,6 @@ async function loadUsers() {
                 </span>
             </td>
             <td>
-                <button class="btn btn-sm me-1" style="border:1px solid var(--border); color:var(--muted)"
-                    onclick="openRenameModal(${nameJson})">Rename</button>
                 <button class="btn btn-sm me-1" style="border:1px solid var(--border); color:var(--muted)"
                     onclick="openPwModal(${nameJson})">Password</button>
                 <button class="btn btn-sm btn-danger"
@@ -97,30 +95,6 @@ async function submitPassword() {
     showToast(`Password updated for "${name}".`);
 }
 
-function openRenameModal(name) {
-    document.getElementById('renameOldName').value = name;
-    document.getElementById('renameNewName').value = name;
-    new bootstrap.Modal(document.getElementById('renameModal')).show();
-}
-
-async function submitRename() {
-    const oldName = document.getElementById('renameOldName').value;
-    const newName = document.getElementById('renameNewName').value.trim();
-    if (!newName) return showToast('New username is required.', 'danger');
-
-    const res = await apiFetch(`/api/users/${encodeURIComponent(oldName)}`, {
-        method: 'PATCH', headers: {'Content-Type': 'application/json'},
-        body: JSON.stringify({name: newName}),
-    });
-    if (!res) return;
-    const data = await res.json();
-    bootstrap.Modal.getInstance(document.getElementById('renameModal')).hide();
-    if (!res.ok) return showToast('Error: ' + (data.error || res.status), 'danger');
-    if (data.warning) showToast(data.warning, 'warning');
-    else showToast(`Renamed to "${newName}".`);
-    loadUsers();
-    loadGroups();
-}
 
 function openAdminSettings() {
     document.getElementById('adminCurrentPw').value = '';

templates/index.html

@@ -102,27 +102,6 @@
     </div>
 </div>
 
-<!-- Rename user modal -->
-<div class="modal fade" id="renameModal" tabindex="-1">
-    <div class="modal-dialog modal-sm">
-        <div class="modal-content">
-            <div class="modal-header">
-                <h5 class="modal-title">Rename User</h5>
-                <button type="button" class="btn-close btn-close-white" data-bs-dismiss="modal"></button>
-            </div>
-            <div class="modal-body">
-                <input type="hidden" id="renameOldName">
-                <label class="form-label" style="color:var(--muted); font-size:.85rem">New Username</label>
-                <input type="text" id="renameNewName" class="form-control mb-2">
-                <div class="small" style="color:var(--yellow)">SMB and WebDAV password must be reset after rename.</div>
-            </div>
-            <div class="modal-footer">
-                <button type="button" class="btn btn-secondary btn-sm" data-bs-dismiss="modal">Cancel</button>
-                <button type="button" class="btn btn-primary btn-sm" onclick="submitRename()">Rename</button>
-            </div>
-        </div>
-    </div>
-</div>
 
 <!-- Header -->
 <div class="topbar d-flex justify-content-between align-items-center">