Flask app progress

docker/router-dash/app/action_apply_ddns_providers.py

@@ -0,0 +1,139 @@
+from flask import Blueprint, request, redirect, flash
+from auth import require_level
+import json
+
+bp = Blueprint('action_apply_ddns_providers', __name__)
+
+DDNS_FILE = '/configs/ddns.json'
+
+
+@bp.route('/action/add_ddns_provider', methods=['POST'])
+@require_level('administrator')
+def add_ddns_provider():
+    provider_type = request.form.get('provider', '').strip().lower()
+    description   = request.form.get('description', '').strip()
+    hostnames_raw = request.form.get('hostnames', '')
+    hostnames     = [h.strip() for h in hostnames_raw.splitlines() if h.strip()]
+
+    if not description:
+        flash('Description is required.', 'error')
+        return redirect('/view/view_ddns')
+    if not hostnames:
+        flash('At least one hostname is required.', 'error')
+        return redirect('/view/view_ddns')
+    if provider_type not in ('noip', 'cloudflare', 'duckdns'):
+        flash('Unknown provider type.', 'error')
+        return redirect('/view/view_ddns')
+
+    try:
+        with open(DDNS_FILE) as f:
+            data = json.load(f)
+    except Exception as ex:
+        flash(f'Could not read config: {ex}', 'error')
+        return redirect('/view/view_ddns')
+
+    entry = {
+        'description': description,
+        'provider':    provider_type,
+        'enabled':     True,
+        'hostnames':   hostnames,
+    }
+    if provider_type == 'noip':
+        entry['username'] = request.form.get('username', '').strip()
+        entry['password'] = request.form.get('password', '').strip()
+    else:
+        entry['api_token'] = request.form.get('api_token', '').strip()
+
+    data.setdefault('providers', []).append(entry)
+
+    try:
+        with open(DDNS_FILE, 'w') as f:
+            json.dump(data, f, indent=2)
+        flash(f'DDNS provider "{description}" added.', 'success')
+    except Exception as ex:
+        flash(f'Could not save config: {ex}', 'error')
+    return redirect('/view/view_ddns')
+
+
+@bp.route('/action/edit_ddns_provider', methods=['POST'])
+@require_level('administrator')
+def edit_ddns_provider():
+    try:
+        row_index = int(request.form.get('row_index', -1))
+    except (TypeError, ValueError):
+        flash('Invalid row index.', 'error')
+        return redirect('/view/view_ddns')
+
+    provider_type = request.form.get('provider', '').strip().lower()
+    description   = request.form.get('description', '').strip()
+    hostnames_raw = request.form.get('hostnames', '')
+    enabled       = request.form.get('enabled') == 'on'
+    hostnames     = [h.strip() for h in hostnames_raw.splitlines() if h.strip()]
+
+    try:
+        with open(DDNS_FILE) as f:
+            data = json.load(f)
+    except Exception as ex:
+        flash(f'Could not read config: {ex}', 'error')
+        return redirect('/view/view_ddns')
+
+    providers = data.get('providers', [])
+    if row_index < 0 or row_index >= len(providers):
+        flash('Invalid provider index.', 'error')
+        return redirect('/view/view_ddns')
+
+    entry = {
+        'description': description,
+        'provider':    provider_type,
+        'enabled':     enabled,
+        'hostnames':   hostnames,
+    }
+    if provider_type == 'noip':
+        entry['username'] = request.form.get('username', '').strip()
+        entry['password'] = request.form.get('password', '').strip()
+    else:
+        entry['api_token'] = request.form.get('api_token', '').strip()
+
+    providers[row_index] = entry
+    data['providers'] = providers
+
+    try:
+        with open(DDNS_FILE, 'w') as f:
+            json.dump(data, f, indent=2)
+        flash('DDNS provider updated.', 'success')
+    except Exception as ex:
+        flash(f'Could not save config: {ex}', 'error')
+    return redirect('/view/view_ddns')
+
+
+@bp.route('/action/delete_ddns_provider', methods=['POST'])
+@require_level('administrator')
+def delete_ddns_provider():
+    try:
+        row_index = int(request.form.get('row_index', -1))
+    except (TypeError, ValueError):
+        flash('Invalid row index.', 'error')
+        return redirect('/view/view_ddns')
+
+    try:
+        with open(DDNS_FILE) as f:
+            data = json.load(f)
+    except Exception as ex:
+        flash(f'Could not read config: {ex}', 'error')
+        return redirect('/view/view_ddns')
+
+    providers = data.get('providers', [])
+    if row_index < 0 or row_index >= len(providers):
+        flash('Invalid provider index.', 'error')
+        return redirect('/view/view_ddns')
+
+    del providers[row_index]
+    data['providers'] = providers
+
+    try:
+        with open(DDNS_FILE, 'w') as f:
+            json.dump(data, f, indent=2)
+        flash('DDNS provider deleted.', 'success')
+    except Exception as ex:
+        flash(f'Could not save config: {ex}', 'error')
+    return redirect('/view/view_ddns')