add API endpoint to retrieve dnsmasq configuration for workers

cluster/cluster_api.py

@@ -1,7 +1,7 @@
 import glob
 import os
 
-from django.http import JsonResponse
+from django.http import JsonResponse, FileResponse
 from django.utils import timezone
 
 from .models import ClusterSettings, Worker, WorkerStatus
@@ -30,7 +30,7 @@ def get_worker(request):
     try:
         worker_config_version = int(request.GET.get('worker_config_version'))
         worker_version = int(request.GET.get('worker_version'))
-        worker_dns_version = int(request.GET.get('dns_version'))
+        worker_dns_version = int(request.GET.get('worker_dns_version'))
     except:
         worker.error_status = 'missing_version'
         worker.save()
@@ -97,6 +97,27 @@ def get_worker(request):
     return worker, success
 
 
+def api_get_worker_dnsmasq_config(request):
+    dnsmasq_file = "/etc/dnsmasq/dnsmasq_config.tar.gz"
+    worker, success = get_worker(request)
+    if worker:
+        if worker.error_status or not success:
+            data = {'status': 'error', 'message': worker.error_status}
+            return JsonResponse(data, status=400)
+    else:
+        data = {'status': 'error', 'message': 'Worker not found'}
+        return JsonResponse(data, status=403)
+
+    if not os.path.exists(dnsmasq_file):
+        data = {'status': 'error', 'message': 'dnsmasq configuration not found'}
+        return JsonResponse(data, status=404)
+
+    response = FileResponse(open(dnsmasq_file, "rb"), content_type="application/gzip")
+    response["Content-Disposition"] = 'attachment; filename="dnsmasq_config.tar.gz"'
+    response["Content-Length"] = str(os.path.getsize(dnsmasq_file))
+    return response
+
+
 def api_get_worker_config_files(request):
     worker, success = get_worker(request)
     if worker:

wireguard_webadmin/urls.py

@@ -21,7 +21,7 @@ from accounts.views import view_create_first_user, view_login, view_logout
 from api.views import api_instance_info, api_peer_invite, api_peer_list, cron_check_updates, \
     cron_update_peer_latest_handshake, peer_info, routerfleet_authenticate_session, routerfleet_get_user_token, \
     wireguard_status
-from cluster.cluster_api import api_cluster_status, api_get_worker_config_files
+from cluster.cluster_api import api_cluster_status, api_get_worker_config_files, api_get_worker_dnsmasq_config
 from cluster.views import cluster_main, cluster_settings, worker_manage
 from console.views import view_console
 from dns.views import view_apply_dns_config, view_manage_dns_settings, view_manage_filter_list, view_manage_static_host, \
@@ -78,6 +78,7 @@ urlpatterns = [
     path('api/cron_update_peer_latest_handshake/', cron_update_peer_latest_handshake, name='cron_update_peer_latest_handshake'),
     path('api/cluster/status/', api_cluster_status, name='api_cluster_status'),
     path('api/cluster/worker/get_config_files/', api_get_worker_config_files, name='api_get_worker_config_files'),
+    path('api/cluster/worker/get_dnsmasq_config/', api_get_worker_dnsmasq_config, name='api_get_worker_dnsmasq_config'),
     path('firewall/port_forward/', view_redirect_rule_list, name='redirect_rule_list'),    
     path('firewall/manage_port_forward_rule/', manage_redirect_rule, name='manage_redirect_rule'),
     path('firewall/rule_list/', view_firewall_rule_list, name='firewall_rule_list'),