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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/>.
from leap.keymanager import KeyManager, KeyNotFound
from pixelated.config import leap_config
from twisted.internet import defer
import logging
logger = logging.getLogger(__name__)
class UploadKeyError(Exception):
pass
class Keymanager(object):
def __init__(self, provider, soledad, email_address, token, uuid):
nicknym_url = provider._discover_nicknym_server()
self._email = email_address
self.keymanager = KeyManager(self._email, nicknym_url,
soledad,
token=token, ca_cert_path=provider.provider_api_cert, api_uri=provider.api_uri,
api_version=provider.api_version,
uid=uuid, gpgbinary=leap_config.gpg_binary,
combined_ca_bundle=provider.combined_cerfificates_path)
@defer.inlineCallbacks
def generate_openpgp_key(self):
key_present = yield self._key_exists(self._email)
if not key_present:
logger.info("Generating keys - this could take a while...")
yield self._gen_key()
try:
yield self._send_key_to_leap()
except Exception as e:
yield self.delete_key_pair(self._email)
raise UploadKeyError(e.message)
@defer.inlineCallbacks
def _key_exists(self, email):
try:
yield self.get_key(email, private=True, fetch_remote=False)
defer.returnValue(True)
except KeyNotFound:
defer.returnValue(False)
def get_key(self, email, private=False, fetch_remote=True):
return self.keymanager.get_key(email, private=private, fetch_remote=fetch_remote)
def _gen_key(self):
return self.keymanager.gen_key()
def _send_key_to_leap(self):
return self.keymanager.send_key()
@defer.inlineCallbacks
def delete_key_pair(self, key):
private_key = yield self.get_key(self._email, private=True, fetch_remote=False)
public_key = yield self.get_key(self._email, private=False, fetch_remote=False)
self.keymanager.delete_key(private_key)
self.keymanager.delete_key(public_key)
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