This file is indexed.

/usr/lib/python2.7/dist-packages/cinderclient/base.py is in python-cinderclient 1:1.0.8-0ubuntu1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
# Copyright 2010 Jacob Kaplan-Moss

# Copyright (c) 2011 OpenStack Foundation
# All Rights Reserved.
#
#    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.

"""
Base utilities to build API operation managers and objects on top of.
"""
import abc
import contextlib
import hashlib
import os

import six

from cinderclient import exceptions
from cinderclient import utils


# Python 2.4 compat
try:
    all
except NameError:
    def all(iterable):
        return True not in (not x for x in iterable)


def getid(obj):
    """
    Abstracts the common pattern of allowing both an object or an object's ID
    as a parameter when dealing with relationships.
    """
    try:
        return obj.id
    except AttributeError:
        return obj


class Manager(utils.HookableMixin):
    """
    Managers interact with a particular type of API (servers, flavors, images,
    etc.) and provide CRUD operations for them.
    """
    resource_class = None

    def __init__(self, api):
        self.api = api

    def _list(self, url, response_key, obj_class=None, body=None):
        resp = None
        if body:
            resp, body = self.api.client.post(url, body=body)
        else:
            resp, body = self.api.client.get(url)

        if obj_class is None:
            obj_class = self.resource_class

        data = body[response_key]
        # NOTE(ja): keystone returns values as list as {'values': [ ... ]}
        #           unlike other services which just return the list...
        if isinstance(data, dict):
            try:
                data = data['values']
            except KeyError:
                pass

        with self.completion_cache('human_id', obj_class, mode="w"):
            with self.completion_cache('uuid', obj_class, mode="w"):
                return [obj_class(self, res, loaded=True)
                        for res in data if res]

    @contextlib.contextmanager
    def completion_cache(self, cache_type, obj_class, mode):
        """
        The completion cache store items that can be used for bash
        autocompletion, like UUIDs or human-friendly IDs.

        A resource listing will clear and repopulate the cache.

        A resource create will append to the cache.

        Delete is not handled because listings are assumed to be performed
        often enough to keep the cache reasonably up-to-date.
        """
        base_dir = utils.env('CINDERCLIENT_UUID_CACHE_DIR',
                             default="~/.cinderclient")

        # NOTE(sirp): Keep separate UUID caches for each username + endpoint
        # pair
        username = utils.env('OS_USERNAME', 'CINDER_USERNAME')
        url = utils.env('OS_URL', 'CINDER_URL')
        uniqifier = hashlib.md5(username.encode('utf-8') +
                                url.encode('utf-8')).hexdigest()

        cache_dir = os.path.expanduser(os.path.join(base_dir, uniqifier))

        try:
            os.makedirs(cache_dir, 0o755)
        except OSError:
            # NOTE(kiall): This is typically either permission denied while
            #              attempting to create the directory, or the directory
            #              already exists. Either way, don't fail.
            pass

        resource = obj_class.__name__.lower()
        filename = "%s-%s-cache" % (resource, cache_type.replace('_', '-'))
        path = os.path.join(cache_dir, filename)

        cache_attr = "_%s_cache" % cache_type

        try:
            setattr(self, cache_attr, open(path, mode))
        except IOError:
            # NOTE(kiall): This is typically a permission denied while
            #              attempting to write the cache file.
            pass

        try:
            yield
        finally:
            cache = getattr(self, cache_attr, None)
            if cache:
                cache.close()
                delattr(self, cache_attr)

    def write_to_completion_cache(self, cache_type, val):
        cache = getattr(self, "_%s_cache" % cache_type, None)
        if cache:
            cache.write("%s\n" % val)

    def _get(self, url, response_key=None):
        resp, body = self.api.client.get(url)
        if response_key:
            return self.resource_class(self, body[response_key], loaded=True)
        else:
            return self.resource_class(self, body, loaded=True)

    def _create(self, url, body, response_key, return_raw=False, **kwargs):
        self.run_hooks('modify_body_for_create', body, **kwargs)
        resp, body = self.api.client.post(url, body=body)
        if return_raw:
            return body[response_key]

        with self.completion_cache('human_id', self.resource_class, mode="a"):
            with self.completion_cache('uuid', self.resource_class, mode="a"):
                return self.resource_class(self, body[response_key])

    def _delete(self, url):
        resp, body = self.api.client.delete(url)

    def _update(self, url, body, **kwargs):
        self.run_hooks('modify_body_for_update', body, **kwargs)
        resp, body = self.api.client.put(url, body=body)
        return body


class ManagerWithFind(six.with_metaclass(abc.ABCMeta, Manager)):
    """
    Like a `Manager`, but with additional `find()`/`findall()` methods.
    """

    @abc.abstractmethod
    def list(self):
        pass

    def find(self, **kwargs):
        """
        Find a single item with attributes matching ``**kwargs``.

        This isn't very efficient: it loads the entire list then filters on
        the Python side.
        """
        matches = self.findall(**kwargs)
        num_matches = len(matches)
        if num_matches == 0:
            msg = "No %s matching %s." % (self.resource_class.__name__, kwargs)
            raise exceptions.NotFound(404, msg)
        elif num_matches > 1:
            raise exceptions.NoUniqueMatch
        else:
            return matches[0]

    def findall(self, **kwargs):
        """
        Find all items with attributes matching ``**kwargs``.

        This isn't very efficient: it loads the entire list then filters on
        the Python side.
        """
        found = []
        searches = list(kwargs.items())

        # Want to search for all tenants here so that when attempting to delete
        # that a user like admin doesn't get a failure when trying to delete
        # another tenant's volume by name.
        for obj in self.list(search_opts={'all_tenants': 1}):
            try:
                if all(getattr(obj, attr) == value
                       for (attr, value) in searches):
                    found.append(obj)
            except AttributeError:
                continue

        return found


class Resource(object):
    """
    A resource represents a particular instance of an object (server, flavor,
    etc). This is pretty much just a bag for attributes.

    :param manager: Manager object
    :param info: dictionary representing resource attributes
    :param loaded: prevent lazy-loading if set to True
    """
    HUMAN_ID = False

    def __init__(self, manager, info, loaded=False):
        self.manager = manager
        self._info = info
        self._add_details(info)
        self._loaded = loaded

        # NOTE(sirp): ensure `id` is already present because if it isn't we'll
        # enter an infinite loop of __getattr__ -> get -> __init__ ->
        # __getattr__ -> ...
        if 'id' in self.__dict__ and len(str(self.id)) == 36:
            self.manager.write_to_completion_cache('uuid', self.id)

        human_id = self.human_id
        if human_id:
            self.manager.write_to_completion_cache('human_id', human_id)

    @property
    def human_id(self):
        """Subclasses may override this provide a pretty ID which can be used
        for bash completion.
        """
        if 'name' in self.__dict__ and self.HUMAN_ID:
            return utils.slugify(self.name)
        return None

    def _add_details(self, info):
        for (k, v) in six.iteritems(info):
            try:
                setattr(self, k, v)
            except AttributeError:
                # In this case we already defined the attribute on the class
                pass

    def __getattr__(self, k):
        if k not in self.__dict__:
            #NOTE(bcwaldon): disallow lazy-loading if already loaded once
            if not self.is_loaded():
                self.get()
                return self.__getattr__(k)

            raise AttributeError(k)
        else:
            return self.__dict__[k]

    def __repr__(self):
        reprkeys = sorted(k for k in self.__dict__ if k[0] != '_'
                          and k != 'manager')
        info = ", ".join("%s=%s" % (k, getattr(self, k)) for k in reprkeys)
        return "<%s %s>" % (self.__class__.__name__, info)

    def get(self):
        # set_loaded() first ... so if we have to bail, we know we tried.
        self.set_loaded(True)
        if not hasattr(self.manager, 'get'):
            return

        new = self.manager.get(self.id)
        if new:
            self._add_details(new._info)

    def __eq__(self, other):
        if not isinstance(other, self.__class__):
            return False
        if hasattr(self, 'id') and hasattr(other, 'id'):
            return self.id == other.id
        return self._info == other._info

    def is_loaded(self):
        return self._loaded

    def set_loaded(self, val):
        self._loaded = val