Add service worker's support

ADFS/views.py

@@ -62,6 +62,11 @@ def reglament(request):
     context = RequestContext(request, {})
     return HttpResponse(template.render(context))
 
+def sw(request):
+    template = loader.get_template('sw.js')
+    context = RequestContext(request, {})
+    return HttpResponse(template.render(context), content_type='application/javascript')
+
 def register_attention(request):
     form = ContactForm()
     if request.method == 'POST':

static/js/main.js

@@ -74,6 +74,16 @@ function initApp() {
 
   const csrftoken = getCookie('csrftoken');
 
+  if ('serviceWorker' in navigator) {
+    navigator.serviceWorker.register('/sw.js').then(function(reg) {
+      // регистрация сработала
+      console.log('Registration succeeded. Scope is ' + reg.scope);
+    }).catch(function(error) {
+      // регистрация прошла неудачно
+      console.log('Registration failed with ' + error);
+    });
+  };
+
   function csrfSafeMethod(method) {
     // these HTTP methods do not require CSRF protection
     return (/^(GET|HEAD|OPTIONS|TRACE)$/.test(method));

templates/sw.js

@@ -0,0 +1,11 @@
+self.addEventListener('install', (event) => {
+    console.log('Установлен');
+});
+
+self.addEventListener('activate', (event) => {
+    console.log('Активирован');
+});
+
+self.addEventListener('fetch', (event) => {
+    console.log('Происходит запрос на сервер');
+});

untitled1/middleware.py

@@ -0,0 +1,4 @@
+class MyMiddleware:
+    def process_response(self, request, response):
+        response['Service-Worker-Allowed'] = '/'
+        return response

untitled1/settings.py

@@ -87,6 +87,7 @@
     'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
     'django.contrib.messages.middleware.MessageMiddleware',
     'django.middleware.clickjacking.XFrameOptionsMiddleware',
+    'untitled1.middleware.MyMiddleware',
 )
 
 ROOT_URLCONF = 'untitled1.urls'

untitled1/urls.py

@@ -35,6 +35,7 @@ class UserViewSet(viewsets.ModelViewSet):
     url(r'^register/', views.register),
     url(r'^survey', views.survey),
     url(r'^reglament/', views.reglament),
+    url(r'^sw.js', views.sw),
     url(r'^register_attention/', views.register_attention),
     url(r'^attention/(?P<id>[0-9]+)/', views.view_attention,
         name='attention'),
@@ -47,4 +48,4 @@ class UserViewSet(viewsets.ModelViewSet):
 from django.contrib.staticfiles.urls import staticfiles_urlpatterns
 
 urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
-urlpatterns += static(settings.STATIC_URL, document_root=settings.STATIC_ROOT)
+urlpatterns += static(settings.STATIC_URL, document_root=settings.STATIC_ROOT)