/usr/share/pyshared/desktopcouch/application/platform/linux/keyring.py is in python-desktopcouch-application 1.0.8-0ubuntu3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#
# This file is part of desktopcouch.
#
# desktopcouch is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License version 3
# as published by the Free Software Foundation.
#
# desktopcouch is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with desktopcouch. If not, see <http://www.gnu.org/licenses/>.
#
# Author: Manuel de la Pena <manuel.delapena@canonical.com>
"""Keyring used to store secrets."""
import logging
import gnomekeyring
from desktopcouch.application.util import make_random_string
class Keyring(object):
"""Represent the keyring storage used to store secrets"""
def __init__(self, make_random_string_fn=make_random_string,
keyring=gnomekeyring):
self.keyring = keyring
self.make_random_string = make_random_string_fn
def get_user_name_password(self):
"""Return the user name and passwd used to access desktopcouch."""
admin_username = None
admin_password = None
try:
data = self.keyring.find_items_sync(
self.keyring.ITEM_GENERIC_SECRET,
{'desktopcouch': 'basic'})
admin_username, admin_password = data[0].secret.split(":", 1)
except (gnomekeyring.IOError, gnomekeyring.NoMatchError):
# generate the random strings to be used as username and psswd
admin_username = self.make_random_string(10)
admin_password = self.make_random_string(10)
try:
# save admin account details in keyring
self.keyring.item_create_sync(
None,
gnomekeyring.ITEM_GENERIC_SECRET,
'Desktop Couch user authentication',
{'desktopcouch': 'basic'},
":".join([admin_username, admin_password]), True)
except gnomekeyring.NoKeyringDaemonError:
logging.warn(
"There is no keyring to store our admin credentials.")
except gnomekeyring.CancelledError:
logging.warn(
"There is no keyring to store our admin credentials.")
except gnomekeyring.IOError:
logging.warn(
"There is no keyring to store our admin credentials.")
return (admin_username, admin_password)
def get_oauth_data(self):
"""Return the oauth data used to connect with couchdb."""
consumer_key = self.make_random_string(10)
consumer_secret = self.make_random_string(10)
token = self.make_random_string(10)
token_secret = self.make_random_string(10)
# Save the new OAuth creds so that 3rd-party
# apps can authenticate by accessing the keyring first.
# This is one-way, we don't read from keyring.
try:
self.keyring.item_create_sync(
None,
gnomekeyring.ITEM_GENERIC_SECRET,
'Desktop Couch user authentication', {'desktopcouch': 'oauth'},
":".join([consumer_key, consumer_secret, token, token_secret]),
True)
except gnomekeyring.IOError:
# in this case we do not have a major issue, continue and return
logging.warn("There is no keyring to store our admin credentials.")
except gnomekeyring.NoKeyringDaemonError:
# in this case we do not have a major issue, continue and return
logging.warn("There is no keyring to store our oauth credentials.")
except gnomekeyring.CancelledError:
# in this case we do not have a major issue, continue and return
logging.warn("There is no keyring to store our admin credentials.")
return (consumer_key, consumer_secret, token, token_secret)
class TestSecret(object):
"""Test secret."""
def __init__(self, secret):
self.secret = secret
class TestKeyring(object):
"""A gnomekeyring replacement that isolates us from the users keyring."""
def __init__(self, appear_absent=False):
self.appear_absent = appear_absent
self.items = {}
def _get_key(self, attributes): # pylint: disable=R0201
"""Get key."""
return "".join([str(a) for a in sorted(attributes.items())])
def find_items_sync(self, item_type, attributes):
"""Find items sync."""
key = self._get_key(attributes)
if item_type in self.items and key in self.items[item_type]:
return [TestSecret(self.items[item_type][key])]
raise gnomekeyring.NoMatchError
# pylint: disable=W0613
def item_create_sync(self, keyring, item_type, display_name, attributes,
secret, update_if_exists):
"""Item create sync."""
assert keyring is None, "Mock not coded to have multiple keyrings"
assert update_if_exists is True, "Mock not coded to create duplicates"
if self.appear_absent:
raise gnomekeyring.NoKeyringDaemonError
self.items.setdefault(item_type, {})
key = self._get_key(attributes)
self.items[item_type][key] = secret
return "Mock keyring doesn't have item ids"
# pylint: enable=W0613
def get_user_name_password(self):
"""Return the user name and passwd used to access desktopcouch."""
admin_username = None
admin_password = None
try:
data = self.find_items_sync(gnomekeyring.ITEM_GENERIC_SECRET,
{'desktopcouch': 'basic'})
admin_username, admin_password = data[0].secret.split(":", 1)
except gnomekeyring.NoMatchError:
# generate the random strings to be used as username and psswd
admin_username = make_random_string(10)
admin_password = make_random_string(10)
try:
# save admin account details in keyring
self.item_create_sync(
None,
gnomekeyring.ITEM_GENERIC_SECRET,
'Desktop Couch user authentication',
{'desktopcouch': 'basic'},
":".join([admin_username, admin_password]), True)
except gnomekeyring.NoKeyringDaemonError:
# in this case we do not have a major issue, continue & return
pass
except gnomekeyring.CancelledError:
# in this case we do not have a major issue, continue & return
pass
return (admin_username, admin_password)
def get_oauth_data(self):
"""Return the oauth data used to connect with couchdb."""
consumer_key = make_random_string(10)
consumer_secret = make_random_string(10)
token = make_random_string(10)
token_secret = make_random_string(10)
try:
self.item_create_sync(
None,
gnomekeyring.ITEM_GENERIC_SECRET,
'Desktop Couch user authentication', {'desktopcouch': 'oauth'},
":".join([consumer_key, consumer_secret, token, token_secret]),
True)
except gnomekeyring.NoKeyringDaemonError:
# in this case we do not have a major issue, continue and return
pass
except gnomekeyring.CancelledError:
# in this case we do not have a major issue, continue and return
pass
return (consumer_key, consumer_secret, token, token_secret)
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