dashboard: add "login as" button for superusers

fixes #277

circle/dashboard/templates/dashboard/profile.html

@@ -10,6 +10,12 @@
   <div class="col-md-12">
     <div class="panel panel-default">
       <div class="panel-heading">
+        {% if request.user.is_superuser %}
+          <a href="{{ login_token }}"
+             class="pull-right btn btn-danger btn-xs"
+             title="{% trans "Log in as this user. Recommended to open in an incognito window." %}">
+             {% trans "Login as this user" %}</a>
+        {% endif %}
         <a class="pull-right btn btn-default btn-xs" href="{% url "dashboard.index" %}">{% trans "Back" %}</a>
         <h3 class="no-margin">
           <i class="fa fa-user"></i>

circle/dashboard/urls.py

@@ -45,7 +45,7 @@ from .views import (
     VmTraitsUpdate, VmRawDataUpdate,
     GroupPermissionsView,
     LeaseAclUpdateView,
-    ClientCheck,
+    ClientCheck, TokenLogin,
 )
 
 autocomplete_light.autodiscover()
@@ -207,4 +207,6 @@ urlpatterns = patterns(
         name="dashboard.views.store-refresh-toplist"),
     url(r"^client/check$", ClientCheck.as_view(),
         name="dashboard.views.client-check"),
+    url(r'^token-login/(?P<token>.*)/$', TokenLogin.as_view(),
+        name="dashboard.views.token-login"),
 )

circle/dashboard/views.py

@@ -3371,6 +3371,9 @@ class ProfileView(LoginRequiredMixin, DetailView):
                 template__in=it)
             context['instances_with_access'] = context[
                 'instances_with_access'].filter(template__in=it)
+        if self.request.user.is_superuser:
+            context['login_token'] = TokenLogin.get_token_url(
+                user, self.request.user)
         return context