add an API endpoint for testing external log aggregrator connectivity

see: #5164

awx/conf/urls.py

@@ -12,4 +12,5 @@ urlpatterns = patterns(
     'awx.conf.views',
     url(r'^$', 'setting_category_list'),
     url(r'^(?P<category_slug>[a-z0-9-]+)/$', 'setting_singleton_detail'),
+    url(r'^logging/test/$', 'setting_logging_test'),
 )

awx/conf/views.py

@@ -19,7 +19,9 @@ from rest_framework import status
 
 # Tower
 from awx.api.generics import *  # noqa
+from awx.api.permissions import IsSuperUser
 from awx.main.utils import *  # noqa
+from awx.main.utils.handlers import BaseHTTPSHandler, LoggingConnectivityException
 from awx.conf.license import get_licensed_features
 from awx.conf.models import Setting
 from awx.conf.serializers import SettingCategorySerializer, SettingSingletonSerializer
@@ -130,6 +132,32 @@ class SettingSingletonDetail(RetrieveUpdateDestroyAPIView):
                 settings.TOWER_URL_BASE = url
 
 
+class SettingLoggingTest(GenericAPIView):
+
+    view_name = _('Logging Connectivity Test')
+    model = Setting
+    serializer_class = SettingSingletonSerializer
+    permission_classes = (IsSuperUser,)
+    filter_backends = []
+    new_in_320 = True
+
+    def post(self, request, *args, **kwargs):
+        defaults = dict()
+        for key in settings_registry.get_registered_settings(category_slug='logging'):
+            try:
+                defaults[key] = settings_registry.get_setting_field(key).get_default()
+            except serializers.SkipField:
+                defaults[key] = None
+        obj = type('Settings', (object,), defaults)()
+        serializer = self.get_serializer(obj, data=request.data)
+        serializer.is_valid(raise_exception=True)
+        try:
+            BaseHTTPSHandler.perform_test(serializer.validated_data)
+        except LoggingConnectivityException as e:
+            return Response({'error': str(e)}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
+        return Response(status=status.HTTP_200_OK)
+
+
 # Create view functions for all of the class-based views to simplify inclusion
 # in URL patterns and reverse URL lookups, converting CamelCase names to
 # lowercase_with_underscore (e.g. MyView.as_view() becomes my_view).