openstack/nova
Code Issues Proposed changes

Merge "GlanceImageService static methods to module scope"

Browse Source
This commit is contained in:
Jenkins
2014-03-24 17:40:55 +00:00
committed by Gerrit Code Review
parent d6a6c4067f 0998bbb18c
commit 68fa3c8763
2 changed files with 81 additions and 80 deletions
Download Patch File Download Diff File Expand all files Collapse all files

137
nova/image/glance.py
View File

@@ -251,7 +251,7 @@ class GlanceImageService(object):
def detail(self, context, **kwargs):
"""Calls out to Glance for a list of detailed image information."""
params = self._extract_query_params(kwargs)
params = _extract_query_params(kwargs)
try:
images = self._client.call(context, 1, 'list', **params)
except Exception:
@@ -259,26 +259,11 @@ class GlanceImageService(object):
_images = []
for image in images:
if self._is_image_available(context, image):
_images.append(self._translate_from_glance(image))
if _is_image_available(context, image):
_images.append(_translate_from_glance(image))
return _images
def _extract_query_params(self, params):
_params = {}
accepted_params = ('filters', 'marker', 'limit',
'page_size', 'sort_key', 'sort_dir')
for param in accepted_params:
if params.get(param):
_params[param] = params.get(param)
# ensure filters is a dict
_params.setdefault('filters', {})
# NOTE(vish): don't filter out private images
_params['filters'].setdefault('is_public', 'none')
return _params
def show(self, context, image_id):
"""Returns a dict with image data for the given opaque image id."""
try:
@@ -286,10 +271,10 @@ class GlanceImageService(object):
except Exception:
_reraise_translated_image_exception(image_id)
if not self._is_image_available(context, image):
if not _is_image_available(context, image):
raise exception.ImageNotFound(image_id=image_id)
base_image_meta = self._translate_from_glance(image)
base_image_meta = _translate_from_glance(image)
return base_image_meta
def _get_locations(self, context, image_id):
@@ -302,7 +287,7 @@ class GlanceImageService(object):
except Exception:
_reraise_translated_image_exception(image_id)
if not self._is_image_available(context, image_meta):
if not _is_image_available(context, image_meta):
raise exception.ImageNotFound(image_id=image_id)
locations = getattr(image_meta, 'locations', [])
@@ -362,7 +347,7 @@ class GlanceImageService(object):
def create(self, context, image_meta, data=None):
"""Store the image data and return the new image object."""
sent_service_image_meta = self._translate_to_glance(image_meta)
sent_service_image_meta = _translate_to_glance(image_meta)
if data:
sent_service_image_meta['data'] = data
@@ -373,12 +358,12 @@ class GlanceImageService(object):
except glanceclient.exc.HTTPException:
_reraise_translated_exception()
return self._translate_from_glance(recv_service_image_meta)
return _translate_from_glance(recv_service_image_meta)
def update(self, context, image_id, image_meta, data=None,
purge_props=True):
"""Modify the given image with the new data."""
image_meta = self._translate_to_glance(image_meta)
image_meta = _translate_to_glance(image_meta)
image_meta['purge_props'] = purge_props
#NOTE(bcwaldon): id is not an editable field, but it is likely to be
# passed in by calling code. Let's be nice and ignore it.
@@ -391,7 +376,7 @@ class GlanceImageService(object):
except Exception:
_reraise_translated_image_exception(image_id)
else:
return self._translate_from_glance(image_meta)
return _translate_from_glance(image_meta)
def delete(self, context, image_id):
"""Delete the given image.
@@ -409,59 +394,75 @@ class GlanceImageService(object):
raise exception.ImageNotAuthorized(image_id=image_id)
return True
@staticmethod
def _translate_to_glance(image_meta):
image_meta = _convert_to_string(image_meta)
image_meta = _remove_read_only(image_meta)
return image_meta
@staticmethod
def _translate_from_glance(image):
image_meta = _extract_attributes(image)
image_meta = _convert_timestamps_to_datetimes(image_meta)
image_meta = _convert_from_string(image_meta)
return image_meta
def _extract_query_params(params):
_params = {}
accepted_params = ('filters', 'marker', 'limit',
'page_size', 'sort_key', 'sort_dir')
for param in accepted_params:
if params.get(param):
_params[param] = params.get(param)
@staticmethod
def _is_image_available(context, image):
"""Check image availability.
# ensure filters is a dict
_params.setdefault('filters', {})
# NOTE(vish): don't filter out private images
_params['filters'].setdefault('is_public', 'none')
This check is needed in case Nova and Glance are deployed
without authentication turned on.
"""
# The presence of an auth token implies this is an authenticated
# request and we need not handle the noauth use-case.
if hasattr(context, 'auth_token') and context.auth_token:
return True
return _params
def _is_image_public(image):
# NOTE(jaypipes) V2 Glance API replaced the is_public attribute
# with a visibility attribute. We do this here to prevent the
# glanceclient for a V2 image model from throwing an
# exception from warlock when trying to access an is_public
# attribute.
if hasattr(image, 'visibility'):
return str(image.visibility).lower() == 'public'
else:
return image.is_public
if context.is_admin or _is_image_public(image):
return True
def _is_image_available(context, image):
"""Check image availability.
properties = image.properties
This check is needed in case Nova and Glance are deployed
without authentication turned on.
"""
# The presence of an auth token implies this is an authenticated
# request and we need not handle the noauth use-case.
if hasattr(context, 'auth_token') and context.auth_token:
return True
if context.project_id and ('owner_id' in properties):
return str(properties['owner_id']) == str(context.project_id)
def _is_image_public(image):
# NOTE(jaypipes) V2 Glance API replaced the is_public attribute
# with a visibility attribute. We do this here to prevent the
# glanceclient for a V2 image model from throwing an
# exception from warlock when trying to access an is_public
# attribute.
if hasattr(image, 'visibility'):
return str(image.visibility).lower() == 'public'
else:
return image.is_public
if context.project_id and ('project_id' in properties):
return str(properties['project_id']) == str(context.project_id)
if context.is_admin or _is_image_public(image):
return True
try:
user_id = properties['user_id']
except KeyError:
return False
properties = image.properties
return str(user_id) == str(context.user_id)
if context.project_id and ('owner_id' in properties):
return str(properties['owner_id']) == str(context.project_id)
if context.project_id and ('project_id' in properties):
return str(properties['project_id']) == str(context.project_id)
try:
user_id = properties['user_id']
except KeyError:
return False
return str(user_id) == str(context.user_id)
def _translate_to_glance(image_meta):
image_meta = _convert_to_string(image_meta)
image_meta = _remove_read_only(image_meta)
return image_meta
def _translate_from_glance(image):
image_meta = _extract_attributes(image)
image_meta = _convert_timestamps_to_datetimes(image_meta)
image_meta = _convert_from_string(image_meta)
return image_meta
def _convert_timestamps_to_datetimes(image_meta):

24
nova/tests/image/test_glance.py
View File

@@ -782,7 +782,7 @@ class TestIsImageAvailable(test.NoDBTestCase):
ctx = mock.MagicMock(auth_token=True)
img = mock.MagicMock()
res = glance.GlanceImageService._is_image_available(ctx, img)
res = glance._is_image_available(ctx, img)
self.assertTrue(res)
img.assert_not_called()
@@ -790,7 +790,7 @@ class TestIsImageAvailable(test.NoDBTestCase):
ctx = mock.MagicMock(auth_token=False, is_admin=True)
img = mock.MagicMock()
res = glance.GlanceImageService._is_image_available(ctx, img)
res = glance._is_image_available(ctx, img)
self.assertTrue(res)
img.assert_not_called()
@@ -803,7 +803,7 @@ class TestIsImageAvailable(test.NoDBTestCase):
img = mock.MagicMock(visibility='PUBLIC',
spec=TestIsImageAvailable.ImageSpecV2)
res = glance.GlanceImageService._is_image_available(ctx, img)
res = glance._is_image_available(ctx, img)
self.assertTrue(res)
def test_v1_is_public(self):
@@ -811,7 +811,7 @@ class TestIsImageAvailable(test.NoDBTestCase):
img = mock.MagicMock(is_public=True,
spec=TestIsImageAvailable.ImageSpecV1)
res = glance.GlanceImageService._is_image_available(ctx, img)
res = glance._is_image_available(ctx, img)
self.assertTrue(res)
def test_project_is_owner(self):
@@ -823,14 +823,14 @@ class TestIsImageAvailable(test.NoDBTestCase):
img = mock.MagicMock(visibility='private', properties=props,
spec=TestIsImageAvailable.ImageSpecV2)
res = glance.GlanceImageService._is_image_available(ctx, img)
res = glance._is_image_available(ctx, img)
self.assertTrue(res)
ctx.reset_mock()
img = mock.MagicMock(is_public=False, properties=props,
spec=TestIsImageAvailable.ImageSpecV1)
res = glance.GlanceImageService._is_image_available(ctx, img)
res = glance._is_image_available(ctx, img)
self.assertTrue(res)
def test_project_context_matches_project_prop(self):
@@ -842,14 +842,14 @@ class TestIsImageAvailable(test.NoDBTestCase):
img = mock.MagicMock(visibility='private', properties=props,
spec=TestIsImageAvailable.ImageSpecV2)
res = glance.GlanceImageService._is_image_available(ctx, img)
res = glance._is_image_available(ctx, img)
self.assertTrue(res)
ctx.reset_mock()
img = mock.MagicMock(is_public=False, properties=props,
spec=TestIsImageAvailable.ImageSpecV1)
res = glance.GlanceImageService._is_image_available(ctx, img)
res = glance._is_image_available(ctx, img)
self.assertTrue(res)
def test_no_user_in_props(self):
@@ -860,14 +860,14 @@ class TestIsImageAvailable(test.NoDBTestCase):
img = mock.MagicMock(visibility='private', properties=props,
spec=TestIsImageAvailable.ImageSpecV2)
res = glance.GlanceImageService._is_image_available(ctx, img)
res = glance._is_image_available(ctx, img)
self.assertFalse(res)
ctx.reset_mock()
img = mock.MagicMock(is_public=False, properties=props,
spec=TestIsImageAvailable.ImageSpecV1)
res = glance.GlanceImageService._is_image_available(ctx, img)
res = glance._is_image_available(ctx, img)
self.assertFalse(res)
def test_user_matches_context(self):
@@ -879,14 +879,14 @@ class TestIsImageAvailable(test.NoDBTestCase):
img = mock.MagicMock(visibility='private', properties=props,
spec=TestIsImageAvailable.ImageSpecV2)
res = glance.GlanceImageService._is_image_available(ctx, img)
res = glance._is_image_available(ctx, img)
self.assertTrue(res)
ctx.reset_mock()
img = mock.MagicMock(is_public=False, properties=props,
spec=TestIsImageAvailable.ImageSpecV1)
res = glance.GlanceImageService._is_image_available(ctx, img)
res = glance._is_image_available(ctx, img)
self.assertTrue(res)