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# -*- coding: utf-8 -*-
# soledadbootstrapper.py
# Copyright (C) 2013 LEAP
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
Soledad bootstrapping
"""
import logging
import os
from PySide import QtCore
from leap.common.check import leap_assert, leap_assert_type
from leap.common.files import get_mtime
from leap.keymanager import KeyManager, openpgp
from leap.keymanager.errors import KeyNotFound
from leap.config.providerconfig import ProviderConfig
from leap.crypto.srpauth import SRPAuth
from leap.services.soledad.soledadconfig import SoledadConfig
from leap.util.request_helpers import get_content
from leap.soledad import Soledad
from leap.services.abstractbootstrapper import AbstractBootstrapper
logger = logging.getLogger(__name__)
class SoledadBootstrapper(AbstractBootstrapper):
"""
Soledad init procedure
"""
SOLEDAD_KEY = "soledad"
KEYMANAGER_KEY = "keymanager"
PUBKEY_KEY = "user[public_key]"
# All dicts returned are of the form
# {"passed": bool, "error": str}
download_config = QtCore.Signal(dict)
gen_key = QtCore.Signal(dict)
def __init__(self):
AbstractBootstrapper.__init__(self)
self._provider_config = None
self._soledad_config = None
self._keymanager = None
self._download_if_needed = False
self._user = ""
self._password = ""
self._soledad = None
@property
def keymanager(self):
return self._keymanager
@property
def soledad(self):
return self._soledad
def _load_and_sync_soledad(self, srp_auth):
"""
Once everthing is in the right place, we instantiate and sync
Soledad
:param srp_auth: SRPAuth object used
:type srp_auth: SRPAuth
"""
uuid = srp_auth.get_uid()
prefix = os.path.join(self._soledad_config.get_path_prefix(),
"leap", "soledad")
secrets_path = "%s/%s.secret" % (prefix, uuid)
local_db_path = "%s/%s.db" % (prefix, uuid)
# TODO: Select server based on timezone (issue #3308)
server_dict = self._soledad_config.get_hosts()
if server_dict.keys():
selected_server = server_dict[server_dict.keys()[0]]
server_url = "https://%s:%s/user-%s" % (
selected_server["hostname"],
selected_server["port"],
uuid)
logger.debug("Using soledad server url: %s" % (server_url,))
cert_file = self._provider_config.get_ca_cert_path()
# TODO: If selected server fails, retry with another host
# (issue #3309)
self._soledad = Soledad(uuid,
self._password.encode("utf-8"),
secrets_path=secrets_path,
local_db_path=local_db_path,
server_url=server_url,
cert_file=cert_file,
auth_token=srp_auth.get_token())
self._soledad.sync()
else:
raise Exception("No soledad server found")
def _download_config(self):
"""
Downloads the Soledad config for the given provider
"""
leap_assert(self._provider_config,
"We need a provider configuration!")
logger.debug("Downloading Soledad config for %s" %
(self._provider_config.get_domain(),))
self._soledad_config = SoledadConfig()
headers = {}
mtime = get_mtime(
os.path.join(
self._soledad_config.get_path_prefix(),
"leap", "providers",
self._provider_config.get_domain(),
"soledad-service.json"))
if self._download_if_needed and mtime:
headers['if-modified-since'] = mtime
# there is some confusion with this uri,
config_uri = "%s/%s/config/soledad-service.json" % (
self._provider_config.get_api_uri(),
self._provider_config.get_api_version())
logger.debug('Downloading soledad config from: %s' % config_uri)
srp_auth = SRPAuth(self._provider_config)
session_id = srp_auth.get_session_id()
cookies = None
if session_id:
cookies = {"_session_id": session_id}
res = self._session.get(config_uri,
verify=self._provider_config
.get_ca_cert_path(),
headers=headers,
cookies=cookies)
res.raise_for_status()
# Not modified
if res.status_code == 304:
logger.debug("Soledad definition has not been modified")
self._soledad_config.load(
os.path.join(
"leap", "providers",
self._provider_config.get_domain(),
"soledad-service.json"))
else:
soledad_definition, mtime = get_content(res)
self._soledad_config.load(data=soledad_definition, mtime=mtime)
self._soledad_config.save(["leap",
"providers",
self._provider_config.get_domain(),
"soledad-service.json"])
self._load_and_sync_soledad(srp_auth)
def _gen_key(self, _):
"""
Generates the key pair if needed, uploads it to the webapp and
nickserver
"""
leap_assert(self._provider_config,
"We need a provider configuration!")
address = "%s@%s" % (self._user, self._provider_config.get_domain())
logger.debug("Retrieving key for %s" % (address,))
srp_auth = SRPAuth(self._provider_config)
self._keymanager = KeyManager(
address,
"https://%s:6425" % (self._provider_config.get_domain()),
self._soledad,
#token=srp_auth.get_token(), # TODO: enable token usage
session_id=srp_auth.get_session_id(),
ca_cert_path=self._provider_config.get_ca_cert_path(),
api_uri=self._provider_config.get_api_uri(),
api_version=self._provider_config.get_api_version(),
uid=srp_auth.get_uid())
try:
self._keymanager.get_key(address, openpgp.OpenPGPKey,
private=True, fetch_remote=False)
except KeyNotFound:
logger.debug("Key not found. Generating key for %s" % (address,))
self._keymanager.gen_key(openpgp.OpenPGPKey)
self._keymanager.send_key(openpgp.OpenPGPKey)
logger.debug("Key generated successfully.")
def run_soledad_setup_checks(self,
provider_config,
user,
password,
download_if_needed=False):
"""
Starts the checks needed for a new soledad setup
:param provider_config: Provider configuration
:type provider_config: ProviderConfig
:param user: User's login
:type user: str
:param password: User's password
:type password: str
"""
leap_assert_type(provider_config, ProviderConfig)
self._provider_config = provider_config
self._download_if_needed = download_if_needed
self._user = user
self._password = password
cb_chain = [
(self._download_config, self.download_config),
(self._gen_key, self.gen_key)
]
self.addCallbackChain(cb_chain)
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