Flask app progress

docker/router-dash/app/action_apply_vlans.py

@@ -0,0 +1,129 @@
+from flask import Blueprint, request, redirect, flash
+from auth import require_level
+from config_utils import load_core, save_core, verify_core_hash, apply_msg
+import sanitize
+
+bp = Blueprint('action_apply_vlans', __name__)
+
+VIEW   = '/view/view_vlans'
+
+
+def _row_index():
+    try:
+        return int(request.form.get('row_index', ''))
+    except (ValueError, TypeError):
+        return None
+
+
+def _hash_ok():
+    if not verify_core_hash(request.form.get('config_hash', '')):
+        flash('Configuration was modified by another session. Please refresh and try again.', 'error')
+        return False
+    return True
+
+
+@bp.route('/action/add_vlan', methods=['POST'])
+@require_level('administrator')
+def add_vlan():
+    vlan_id_raw    = request.form.get('vlan_id', '').strip()
+    name           = sanitize.name(request.form.get('name', ''))
+    interface      = sanitize.interface_name(request.form.get('interface', ''))
+    subnet         = sanitize.ip_or_cidr(request.form.get('subnet', ''))
+    radius_default  = 'radius_default' in request.form
+    mdns_reflection = 'mdns_reflection' in request.form
+
+    if not vlan_id_raw or not name or not interface:
+        flash('VLAN ID, name, and interface are required.', 'error')
+        return redirect(VIEW)
+
+    try:
+        vlan_id = int(vlan_id_raw)
+        if not (1 <= vlan_id <= 4094):
+            raise ValueError
+    except (ValueError, TypeError):
+        flash('VLAN ID must be between 1 and 4094.', 'error')
+        return redirect(VIEW)
+
+    if not _hash_ok():
+        return redirect(VIEW)
+
+    core  = load_core()
+    vlans = core.setdefault('vlans', [])
+
+    if any(v.get('vlan_id') == vlan_id for v in vlans):
+        flash(f'VLAN {vlan_id} already exists.', 'error')
+        return redirect(VIEW)
+
+    vlans.append({
+        'vlan_id':         vlan_id,
+        'name':            name,
+        'interface':       interface,
+        'dhcp':            {'subnet': subnet},
+        'use_blocklists':  [],
+        'radius_default':  radius_default,
+        'mdns_reflection': mdns_reflection,
+        'reservations':    [],
+    })
+    save_core(core)
+
+    flash(apply_msg(), 'success')
+    return redirect(VIEW)
+
+
+@bp.route('/action/edit_vlan', methods=['POST'])
+@require_level('administrator')
+def edit_vlan():
+    idx = _row_index()
+    if idx is None:
+        flash('Invalid request.', 'error')
+        return redirect(VIEW)
+
+    name           = sanitize.name(request.form.get('name', ''))
+    interface      = sanitize.interface_name(request.form.get('interface', ''))
+    subnet         = sanitize.ip_or_cidr(request.form.get('subnet', ''))
+    radius_default  = 'radius_default' in request.form
+    mdns_reflection = 'mdns_reflection' in request.form
+
+    if not name or not interface:
+        flash('Name and interface are required.', 'error')
+        return redirect(VIEW)
+
+    if not _hash_ok():
+        return redirect(VIEW)
+
+    core  = load_core()
+    vlans = core.get('vlans', [])
+    if idx < 0 or idx >= len(vlans):
+        flash('VLAN not found.', 'error')
+        return redirect(VIEW)
+
+    vlans[idx].update({'name': name, 'interface': interface, 'radius_default': radius_default, 'mdns_reflection': mdns_reflection})
+    vlans[idx].setdefault('dhcp', {})['subnet'] = subnet
+    save_core(core)
+
+    flash(apply_msg(), 'success')
+    return redirect(VIEW)
+
+
+@bp.route('/action/delete_vlan', methods=['POST'])
+@require_level('administrator')
+def delete_vlan():
+    idx = _row_index()
+    if idx is None:
+        flash('Invalid request.', 'error')
+        return redirect(VIEW)
+
+    if not _hash_ok():
+        return redirect(VIEW)
+
+    core  = load_core()
+    vlans = core.get('vlans', [])
+    if idx < 0 or idx >= len(vlans):
+        flash('VLAN not found.', 'error')
+        return redirect(VIEW)
+
+    removed = vlans.pop(idx)
+    save_core(core)
+
+    flash(apply_msg(), 'success')
+    return redirect(VIEW)