Install django-rq and use it to ping WebSub, rather than blocking the micropub request during pings

lemoncurry/settings/base.py

@@ -77,6 +77,7 @@ INSTALLED_APPS = [
     'django_agent_trust',
     'django_otp',
     'django_otp.plugins.otp_totp',
+    'django_rq',
     'favicon',
     'meta',
     'shorturls',
@@ -228,3 +229,7 @@ META_USE_TWITTER_PROPERTIES = True
 # django-push
 # https://django-push.readthedocs.io/en/latest/publisher.html
 PUSH_HUB = 'https://00dani.superfeedr.com/'
+
+# django-rq
+# https://github.com/ui/django-rq
+RQ_QUEUES = {'default': {'USE_REDIS_CACHE': 'default'}}

lemoncurry/urls.py

@@ -42,6 +42,7 @@ urlpatterns = [
     url('^micropub', include('micropub.urls')),
     url('^s/', include('shorturls.urls')),
 
+    url(r'^django-rq/', include('django_rq.urls')),
     url(r'^sitemap\.xml$', sitemap.index, maps, name='sitemap'),
     url(r'^sitemaps/(?P<section>.+)\.xml$', sitemap.sitemap, maps,
         name='django.contrib.sitemaps.views.sitemap'),