asynchronous refactoring

- don't execute celery tasks directly
- introduce optional parameters to fileserver tasks to allow chaining
- handle user/group/key create and delete tasks in new osusers.signals
  class
- adapt unit tests
- change TaskResults model to store the task signatures
- generalize the local settings' logging configuration

gnuviechadmin/osusers/tests/test_models.py

@@ -128,8 +128,12 @@ class AdditionalGroupTest(TestCaseWithCeleryTasks):
         addgroup = AdditionalGroup(user=self.user, group=group2)
         addgroup.save()
         taskres = TaskResult.objects.all()
-        self.assertTrue(len(taskres), 1)
-        self.assertEqual(taskres[0].task_name, 'setup_file_sftp_userdir')
+        self.assertTrue(len(taskres), 4)
+        creators = [r.creator for r in taskres]
+        for tcount, tcreator in [
+                (2, 'handle_group_created'), (1, 'handle_user_created'),
+                (1, 'handle_user_added_to_group')]:
+            self.assertEqual(creators.count(tcreator), tcount)
 
     def test_delete(self):
         group2 = Group.objects.create(groupname='test2', gid=1001)
@@ -167,9 +171,9 @@ class GroupTest(TestCaseWithCeleryTasks):
         self.assertEqual(len(Group.objects.all()), 1)
         group.delete()
         self.assertEqual(len(Group.objects.all()), 0)
-        self.assertEqual(len(TaskResult.objects.all()), 1)
+        self.assertEqual(len(TaskResult.objects.all()), 2)
         tr = TaskResult.objects.first()
-        self.assertEqual(tr.task_name, 'delete_ldap_group')
+        self.assertEqual(tr.creator, 'handle_group_created')
 
 
 class ShadowManagerTest(TestCaseWithCeleryTasks):
@@ -275,10 +279,12 @@ class UserManagerTest(TestCaseWithCeleryTasks):
     def test_create_user_tasks(self):
         User.objects.create_user(customer=self.customer)
         taskres = TaskResult.objects.all()
-        self.assertEqual(len(taskres), 2)
-        tasknames = [r.task_name for r in taskres]
-        self.assertEqual(tasknames.count('setup_file_sftp_userdir'), 1)
-        self.assertEqual(tasknames.count('setup_file_mail_userdir'), 1)
+        self.assertEqual(len(taskres), 3)
+        creators = [r.creator for r in taskres]
+        for creator in [
+                'handle_group_created', 'handle_user_created',
+                'handle_user_password_set']:
+            self.assertIn(creator, creators)
 
     def test_create_user_second(self):
         User.objects.create_user(customer=self.customer)
@@ -351,24 +357,26 @@ class UserTest(TestCaseWithCeleryTasks):
 
     def test_save(self):
         user = User.objects.create_user(self.customer)
-        TaskResult.objects.all().delete()
         user.save()
         taskres = TaskResult.objects.all()
-        self.assertEqual(len(taskres), 2)
-        task_names = [r.task_name for r in taskres]
-        self.assertIn('setup_file_sftp_userdir', task_names)
-        self.assertIn('setup_file_mail_userdir', task_names)
+        self.assertEqual(len(taskres), 3)
+        creators = [r.creator for r in taskres]
+        for task in [
+                'handle_group_created', 'handle_user_created',
+                'handle_user_password_set']:
+            self.assertIn(task, creators)
 
     def test_delete_only_user(self):
         user = User.objects.create_user(self.customer)
-        TaskResult.objects.all().delete()
         user.delete()
         taskres = TaskResult.objects.all()
-        self.assertEqual(len(taskres), 3)
-        tasknames = [r.task_name for r in taskres]
-        self.assertEqual(tasknames.count('delete_file_mail_userdir'), 1)
-        self.assertEqual(tasknames.count('delete_file_sftp_userdir'), 1)
-        self.assertEqual(tasknames.count('delete_ldap_group'), 1)
+        self.assertEqual(len(taskres), 6)
+        creators = [r.creator for r in taskres]
+        for task in [
+                'handle_group_created', 'handle_user_created',
+                'handle_user_password_set', 'handle_user_deleted',
+                'handle_group_deleted', 'handle_user_deleted']:
+            self.assertIn(task, creators)
         self.assertEqual(len(User.objects.all()), 0)
 
     def test_delete_additional_groups(self):
@@ -381,11 +389,12 @@ class UserTest(TestCaseWithCeleryTasks):
         TaskResult.objects.all().delete()
         user.delete()
         taskres = TaskResult.objects.all()
-        self.assertEqual(len(taskres), 3)
-        tasknames = [t.task_name for t in taskres]
-        self.assertEqual(tasknames.count('delete_file_mail_userdir'), 1)
-        self.assertEqual(tasknames.count('delete_file_sftp_userdir'), 1)
-        self.assertEqual(tasknames.count('delete_ldap_group'), 1)
+        self.assertEqual(len(taskres), 5)
+        creators = [t.creator for t in taskres]
+        for tcount, tcreator in [
+                (2, 'handle_user_removed_from_group'), (2, 'handle_user_deleted'),
+                (1, 'handle_group_deleted')]:
+            self.assertEqual(creators.count(tcreator), tcount)
         self.assertEqual(len(User.objects.all()), 0)
         self.assertEqual(len(AdditionalGroup.objects.all()), 0)
 
@@ -497,7 +506,7 @@ class SshPublicKeyTest(TestCaseWithCeleryTasks):
         taskresults = TaskResult.objects.all()
         self.assertEqual(len(taskresults), 1)
         self.assertEqual(
-            taskresults[0].task_name, 'set_file_ssh_authorized_keys')
+            taskresults[0].creator, 'handle_ssh_keys_changed')
 
     def test_call_tasks_on_delete(self):
         key = SshPublicKey.objects.create_ssh_public_key(
@@ -507,4 +516,4 @@ class SshPublicKeyTest(TestCaseWithCeleryTasks):
         taskresults = TaskResult.objects.all()
         self.assertEqual(len(taskresults), 1)
         self.assertEqual(
-            taskresults[0].task_name, 'set_file_ssh_authorized_keys')
+            taskresults[0].creator, 'handle_ssh_keys_changed')