Fixes parsing req path for account HEAD/GET

When path is of the form /v1/AUTH_xyz, the
path parsing expects 3 tokens, this fix retries
parsing to expect 2 tokens, so that operations at
an account level can be metered.

Change-Id: I5eb83e39e7902b9410487c98295f12640aeef140
Closes-Bug: 1488682

2 files changed, 25 insertions, 2 deletions

diff --git a/ceilometermiddleware/swift.py b/ceilometermiddleware/swift.py
index b5dad37..0235628 100644
--- a/ceilometermiddleware/swift.py
+++ b/ceilometermiddleware/swift.py
@@ -179,8 +179,15 @@ class Swift(object):
 
         try:
             container = obj = None
-            version, account, remainder = path.replace(
-                '/', '', 1).split('/', 2)
+            path = path.replace('/', '', 1)
+            version, account, remainder = path.split('/', 2)
+        except ValueError:
+            try:
+                version, account = path.split('/', 1)
+                remainder = None
+            except ValueError:
+                return
+        try:
             if not version or not account:
                 raise ValueError('Invalid path: %s' % path)
             if remainder:
diff --git a/ceilometermiddleware/tests/test_swift.py b/ceilometermiddleware/tests/test_swift.py
index 41aaf58..2ca0be9 100644
--- a/ceilometermiddleware/tests/test_swift.py
+++ b/ceilometermiddleware/tests/test_swift.py
@@ -365,3 +365,19 @@ class TestSwift(tests_base.TestCase):
             list(app(req.environ, self.start_response))
             data = notify.call_args_list[0][0]
             self.assertIsNot(0, len(data[2]['target']['id']))
+
+    def test_head_account(self):
+        app = swift.Swift(FakeApp(body=['']), {})
+        req = FakeRequest('/1.0/account',
+                          environ={'REQUEST_METHOD': 'HEAD'})
+        with mock.patch('oslo_messaging.Notifier.info') as notify:
+            list(app(req.environ, self.start_response))
+            self.assertEqual(1, len(notify.call_args_list))
+            data = notify.call_args_list[0][0]
+            self.assertEqual('objectstore.http.request', data[1])
+            self.assertIsNone(data[2].get('measurements'))
+            metadata = data[2]['target']['metadata']
+            self.assertEqual('1.0', metadata['version'])
+            self.assertIsNone(metadata['container'])
+            self.assertIsNone(metadata['object'])
+            self.assertEqual('head', data[2]['target']['action'])