Only refresh session if updating own password (ansible#15426)

Fixes bug where creating a new user will
request a new awx_sessionid cookie, invalidating
the previous session.

Do not refresh session if updating or
creating a password for a different user.

Signed-off-by: Seth Foster <fosterbseth@gmail.com>

awx/api/serializers.py

@@ -1038,7 +1038,9 @@ def _update_password(self, obj, new_password):
             # as the modified user then inject a session key derived from
             # the updated user to prevent logout. This is the logic used by
             # the Django admin's own user_change_password view.
-            update_session_auth_hash(self.context['request'], obj)
+            if self.instance and self.context['request'].user.username == obj.username:
+                update_session_auth_hash(self.context['request'], obj)
+
         elif not obj.password:
             obj.set_unusable_password()
             obj.save(update_fields=['password'])

awx/main/tests/functional/api/test_user.py

@@ -33,6 +33,27 @@ def test_fail_double_create_user(post, admin):
     assert response.status_code == 400
 
 
+@pytest.mark.django_db
+def test_creating_user_retains_session(post, admin):
+    '''
+    Creating a new user should not refresh a new session id for the current user.
+    '''
+    with mock.patch('awx.api.serializers.update_session_auth_hash') as update_session_auth_hash:
+        response = post(reverse('api:user_list'), EXAMPLE_USER_DATA, admin)
+        assert response.status_code == 201
+        assert not update_session_auth_hash.called
+
+
+@pytest.mark.django_db
+def test_updating_own_password_refreshes_session(patch, admin):
+    '''
+    Updating your own password should refresh the session id.
+    '''
+    with mock.patch('awx.api.serializers.update_session_auth_hash') as update_session_auth_hash:
+        patch(reverse('api:user_detail', kwargs={'pk': admin.pk}), {'password': 'newpassword'}, admin, middleware=SessionMiddleware(mock.Mock()))
+        assert update_session_auth_hash.called
+
+
 @pytest.mark.django_db
 def test_create_delete_create_user(post, delete, admin):
     response = post(reverse('api:user_list'), EXAMPLE_USER_DATA, admin, middleware=SessionMiddleware(mock.Mock()))