From 2e4921ab73c4993496316ae2cfdb1531fe21fa61 Mon Sep 17 00:00:00 2001
From: Matthew Grotke <mgrotke@gmail.com>
Date: Tue, 9 Jun 2026 02:23:57 -0400
Subject: [PATCH] Development

---
 docker/routlin-dash/app/config_utils.py       |  2 +-
 .../app/pages/dnsblocking/action.py           | 31 +++++++++++++++++++
 .../app/pages/dnsblocking/content.json        |  4 +++
 .../app/pages/dnsblocking/view.py             | 12 +++++++
 4 files changed, 48 insertions(+), 1 deletion(-)

diff --git a/docker/routlin-dash/app/config_utils.py b/docker/routlin-dash/app/config_utils.py
index cee5af8..7ba1d45 100644
--- a/docker/routlin-dash/app/config_utils.py
+++ b/docker/routlin-dash/app/config_utils.py
@@ -731,7 +731,7 @@ def config_datasource(name):
                 row['local_entries']  = ''
                 row['source_display'] = row.get('url', '')
             vlan_names = used_by.get(bl.get('name', ''), [])
-            row['used_by'] = json.dumps([{'n': n, 'd': n} for n in vlan_names])
+            row['used_by'] = json.dumps([{'n': n, 'd': ''} for n in vlan_names])
             rows.append(row)
         return rows
 
diff --git a/docker/routlin-dash/app/pages/dnsblocking/action.py b/docker/routlin-dash/app/pages/dnsblocking/action.py
index 89ecefb..92dc63b 100644
--- a/docker/routlin-dash/app/pages/dnsblocking/action.py
+++ b/docker/routlin-dash/app/pages/dnsblocking/action.py
@@ -89,6 +89,13 @@ def blocklists_delete():
     before = copy.deepcopy(items[idx])
     name   = before.get('name', str(idx))
     items.pop(idx)
+
+    for vlan in cfg.get('vlans', []):
+        current = set(vlan.get('use_blocklists', []))
+        if name in current:
+            current.discard(name)
+            vlan['use_blocklists'] = sorted(current)
+
     errors = validate.validate_config(cfg)
     if errors:
         for msg in errors:
@@ -152,6 +159,19 @@ def blocklists_edit():
             items[idx]['save_as'] = _save_as_from_name(fields['name'], 'conf')
         items[idx].pop('local_lines', None)
 
+    old_name = before.get('name', '')
+    used_by_vlans = set(request.form.getlist('used_by_vlans'))
+    for vlan in cfg.get('vlans', []):
+        vlan_name = vlan.get('name', '')
+        current = set(vlan.get('use_blocklists', []))
+        if old_name and old_name != fields['name']:
+            current.discard(old_name)
+        if vlan_name in used_by_vlans:
+            current.add(fields['name'])
+        else:
+            current.discard(fields['name'])
+        vlan['use_blocklists'] = sorted(current)
+
     errors = validate.validate_config(cfg)
     if errors:
         for msg in errors:
@@ -202,6 +222,17 @@ def addblocklist_add():
         }
 
     blocklists.append(entry)
+
+    used_by_vlans = set(request.form.getlist('used_by_vlans'))
+    for vlan in cfg.get('vlans', []):
+        vlan_name = vlan.get('name', '')
+        current = set(vlan.get('use_blocklists', []))
+        if vlan_name in used_by_vlans:
+            current.add(fields['name'])
+        else:
+            current.discard(fields['name'])
+        vlan['use_blocklists'] = sorted(current)
+
     errors = validate.validate_config(cfg)
     if errors:
         for msg in errors:
diff --git a/docker/routlin-dash/app/pages/dnsblocking/content.json b/docker/routlin-dash/app/pages/dnsblocking/content.json
index e32c52a..0117ca8 100644
--- a/docker/routlin-dash/app/pages/dnsblocking/content.json
+++ b/docker/routlin-dash/app/pages/dnsblocking/content.json
@@ -146,6 +146,10 @@
               "type": "raw_html",
               "html": "</div>"
             },
+            {
+              "type": "raw_html",
+              "html": "%VLAN_USED_BY_CHECKBOXES%"
+            },
             {
               "type": "button_row",
               "items": [
diff --git a/docker/routlin-dash/app/pages/dnsblocking/view.py b/docker/routlin-dash/app/pages/dnsblocking/view.py
index d5351fa..8461c65 100644
--- a/docker/routlin-dash/app/pages/dnsblocking/view.py
+++ b/docker/routlin-dash/app/pages/dnsblocking/view.py
@@ -99,6 +99,18 @@ def collect_tokens(cfg):
     tokens['DNS_LOG_TAIL'], tokens['DNS_LOG_SUMMARY'] = _dnsblocking_log_tail(cfg)
     blocklists = cfg.get('dns_blocking', {}).get('blocklists', [])
     tokens['BLOCKLIST_EXISTING_NAMES_JS'] = json.dumps([bl.get('name', '') for bl in blocklists])
+    vlans = cfg.get('vlans', [])
+    vlan_checkboxes = ''.join(
+        f'<label class="form-checkbox-row">'
+        f'<input type="checkbox" name="used_by_vlans" value="{factory.e(v["name"])}" class="form-checkbox">'
+        f' <span class="form-checkbox-label">{factory.e(v["name"])}</span>'
+        f'</label>'
+        for v in vlans if v.get('name')
+    )
+    tokens['VLAN_USED_BY_CHECKBOXES'] = (
+        f'<div class="form-group"><label class="form-label">Used By</label>'
+        f'<div>{vlan_checkboxes}</div></div>'
+    ) if vlan_checkboxes else ''
     content = factory.load_json(f'{factory.PAGES_DIR}/dnsblocking/content.json')
     for table_item in factory.iter_table_items(content.get('items', [])):
         ds = table_item.get('datasource', '')