add reverse proxy for flower

bookwyrm/templates/settings/layout.html

@@ -89,6 +89,9 @@ <h2 class="menu-label">{% trans "System" %}</h2>
                 {% url 'settings-schedules' as url %}
                 <a href="{{ url }}"{% if url in request.path %} class="is-active" aria-selected="true"{% endif %}>{% trans "Scheduled tasks" %}</a>
             </li>
+            <li>
+                <a href="/flower/"{% if url in request.path %} class="is-active" aria-selected="true"{% endif %}>{% trans "Flower" %}</a>
+            </li>
             <li>
                 {% url 'settings-email-config' as url %}
                 <a href="{{ url }}"{% if url in request.path %} class="is-active" aria-selected="true"{% endif %}>{% trans "Email Configuration" %}</a>

bookwyrm/urls.py

@@ -29,6 +29,7 @@
 STREAMS = "|".join(s["key"] for s in settings.STREAMS)
 
 urlpatterns = [
+    views.FlowerProxyView.as_url(),
     path("admin/", admin.site.urls),
     path(
         "robots.txt",

bookwyrm/views/admin/flower.py

@@ -0,0 +1,17 @@
+from django.contrib.auth.mixins import UserPassesTestMixin
+from django.urls import path, re_path
+from revproxy.views import ProxyView
+
+class FlowerProxyView(UserPassesTestMixin, ProxyView):
+    upstream = 'http://{}:{}'.format('localhost', 8888)
+    url_prefix = 'flower'
+    rewrite = (
+        (r'^/{}$'.format(url_prefix), r'/{}/'.format(url_prefix)),
+     )
+
+    def test_func(self):
+        return self.request.user.is_superuser
+
+    @classmethod
+    def as_url(cls):
+        return re_path(r'^(?P<path>{}.*)$'.format(cls.url_prefix), cls.as_view(), name='flower')