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#
# Copyright (c) 2014 ThoughtWorks, Inc.
#
# Pixelated is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Pixelated 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with Pixelated. If not, see <http://www.gnu.org/licenses/>.
import errno
import os
from leap.soledad.client import Soledad
from leap.soledad.common.crypto import WrongMacError, UnknownMacMethodError
from pixelated.bitmask_libraries.certs import LeapCertificate
SOLEDAD_TIMEOUT = 120
SOLEDAD_CERT = '/tmp/ca.crt'
class SoledadDiscoverException(Exception):
def __init__(self, *args, **kwargs):
super(SoledadDiscoverException, self).__init__(*args, **kwargs)
class SoledadWrongPassphraseException(Exception):
def __init__(self, *args, **kwargs):
super(SoledadWrongPassphraseException, self).__init__(*args, **kwargs)
class SoledadSessionFactory(object):
@classmethod
def create(cls, provider, user_token, user_uuid, encryption_passphrase):
return SoledadSession(provider, encryption_passphrase, user_token, user_uuid)
class SoledadSession(object):
def __init__(self, provider, encryption_passphrase, user_token, user_uuid):
self.provider = provider
self.config = provider.config
self.user_uuid = user_uuid
self.user_token = user_token
self.soledad = self._init_soledad(encryption_passphrase)
def _init_soledad(self, encryption_passphrase):
try:
server_url = self._discover_soledad_server()
self._create_database_dir()
secrets = self._secrets_path()
local_db = self._local_db_path()
return Soledad(self.user_uuid,
unicode(encryption_passphrase),
secrets,
local_db, server_url,
LeapCertificate(self.provider).provider_api_cert,
shared_db=None,
auth_token=self.user_token,
defer_encryption=False)
except (WrongMacError, UnknownMacMethodError), e:
raise SoledadWrongPassphraseException(e)
def _leap_path(self):
return "%s/soledad" % self.config.leap_home
def _secrets_path(self):
return "%s/%s.secret" % (self._leap_path(), self.user_uuid)
def _local_db_path(self):
return "%s/%s.db" % (self._leap_path(), self.user_uuid)
def _create_database_dir(self):
try:
os.makedirs(self._leap_path())
except OSError as exc:
if exc.errno == errno.EEXIST and os.path.isdir(self._leap_path()):
pass
else:
raise
def sync(self):
if self.soledad.need_sync(self.soledad.server_url):
self.soledad.sync()
def _discover_soledad_server(self):
try:
json_data = self.provider.fetch_soledad_json()
hosts = json_data['hosts']
host = hosts.keys()[0]
server_url = 'https://%s:%d/user-%s' % \
(hosts[host]['hostname'], hosts[host]['port'],
self.user_uuid)
return server_url
except Exception, e:
raise SoledadDiscoverException(e)
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