Use split_path from oslo.utils

We added method split_path in version 3.11 of oslo.utils,
so don't maintain it by sahara.

Change-Id: Ifd9fea2689fef508af5acba2e457f9ebd392b2fe

sahara/api/middleware/auth_valid.py

@@ -15,12 +15,12 @@
 
 from oslo_log import log as logging
 from oslo_middleware import base
+from oslo_utils import strutils
 import webob
 import webob.exc as ex
 
 from sahara.i18n import _
 from sahara.i18n import _LW
-import sahara.openstack.commons as commons
 
 
 LOG = logging.getLogger(__name__)
@@ -48,8 +48,10 @@ class AuthValidator(base.Middleware):
 
         path = req.environ['PATH_INFO']
         if path != '/':
-            version, url_tenant, rest = commons.split_path(path, 3, 3, True)
-            if not version or not url_tenant or not rest:
+            try:
+                version, url_tenant, rest = strutils.split_path(path, 3, 3,
+                                                                True)
+            except ValueError:
                 LOG.warning(_LW("Incorrect path: {path}").format(path=path))
                 raise ex.HTTPNotFound(_("Incorrect path"))
 
@@ -84,14 +86,15 @@ class AuthValidatorV2(base.Middleware):
                 LOG.warning(_LW("Can't get tenant_id from env"))
                 raise ex.HTTPServiceUnavailable()
 
+            try:
                 if path.startswith('/v2'):
-                version, rest = commons.split_path(path, 2, 2, True)
+                    version, rest = strutils.split_path(path, 2, 2, True)
                     requested_tenant = req.headers.get('OpenStack-Project-ID')
                 else:
-                version, requested_tenant, rest = commons.split_path(
-                    path, 3, 3, True)
 
-            if not version or not requested_tenant or not rest:
+                    version, requested_tenant, rest = strutils.split_path(
+                        path, 3, 3, True)
+            except ValueError:
                 LOG.warning(_LW("Incorrect path: {path}").format(path=path))
                 raise ex.HTTPNotFound(_("Incorrect path"))
 

sahara/openstack/commons.py

@@ -1,67 +0,0 @@
-# pylint: disable-all
-
-# Copyright (c) 2010-2012 OpenStack, LLC.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#    http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
-# implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-# stolen from the OpenStack Swift
-
-
-"""Miscellaneous utility functions for use with Swift."""
-
-
-def split_path(path, minsegs=1, maxsegs=None, rest_with_last=False):
-    """Validate and split the given HTTP request path.
-
-    **Examples**::
-
-        ['a'] = split_path('/a')
-        ['a', None] = split_path('/a', 1, 2)
-        ['a', 'c'] = split_path('/a/c', 1, 2)
-        ['a', 'c', 'o/r'] = split_path('/a/c/o/r', 1, 3, True)
-
-    :param path: HTTP Request path to be split
-    :param minsegs: Minimum number of segments to be extracted
-    :param maxsegs: Maximum number of segments to be extracted
-    :param rest_with_last: If True, trailing data will be returned as part
-                           of last segment.  If False, and there is
-                           trailing data, raises ValueError.
-    :returns: list of segments with a length of maxsegs (non-existent
-              segments will return as None)
-    :raises: ValueError if given an invalid path
-    """
-    if not maxsegs:
-        maxsegs = minsegs
-    if minsegs > maxsegs:
-        raise ValueError('minsegs > maxsegs: %d > %d' % (minsegs, maxsegs))
-    if rest_with_last:
-        segs = path.split('/', maxsegs)
-        minsegs += 1
-        maxsegs += 1
-        count = len(segs)
-        if (segs[0] or count < minsegs or count > maxsegs or
-                '' in segs[1:minsegs]):
-            return None, None, None
-    else:
-        minsegs += 1
-        maxsegs += 1
-        segs = path.split('/', maxsegs)
-        count = len(segs)
-        if (segs[0] or count < minsegs or count > maxsegs + 1 or
-                '' in segs[1:minsegs] or
-                (count == maxsegs + 1 and segs[maxsegs])):
-            raise ValueError('Invalid path: %s' % path)
-    segs = segs[1:maxsegs]
-    segs.extend([None] * (maxsegs - 1 - len(segs)))
-    return segs