diff options
Diffstat (limited to 'src/leap/bitmask/services/soledad/soledadbootstrapper.py')
| -rw-r--r-- | src/leap/bitmask/services/soledad/soledadbootstrapper.py | 321 |
1 files changed, 321 insertions, 0 deletions
diff --git a/src/leap/bitmask/services/soledad/soledadbootstrapper.py b/src/leap/bitmask/services/soledad/soledadbootstrapper.py new file mode 100644 index 00000000..2419fc0d --- /dev/null +++ b/src/leap/bitmask/services/soledad/soledadbootstrapper.py @@ -0,0 +1,321 @@ +# -*- 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 +import socket + +from PySide import QtCore +from u1db import errors as u1db_errors + +from leap.bitmask.config.providerconfig import ProviderConfig +from leap.bitmask.crypto.srpauth import SRPAuth +from leap.bitmask.services.abstractbootstrapper import AbstractBootstrapper +from leap.bitmask.services.soledad.soledadconfig import SoledadConfig +from leap.bitmask.util.request_helpers import get_content +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.soledad.client import Soledad + +logger = logging.getLogger(__name__) + + +class SoledadBootstrapper(AbstractBootstrapper): + """ + Soledad init procedure + """ + + SOLEDAD_KEY = "soledad" + KEYMANAGER_KEY = "keymanager" + + PUBKEY_KEY = "user[public_key]" + + MAX_INIT_RETRIES = 10 + + # All dicts returned are of the form + # {"passed": bool, "error": str} + download_config = QtCore.Signal(dict) + gen_key = QtCore.Signal(dict) + soledad_timeout = QtCore.Signal() + soledad_failed = QtCore.Signal() + + 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._srpauth = None + self._soledad = None + + self._soledad_retries = 0 + + @property + def keymanager(self): + return self._keymanager + + @property + def soledad(self): + return self._soledad + + @property + def srpauth(self): + leap_assert(self._provider_config is not None, + "We need a provider config") + return SRPAuth(self._provider_config) + + # retries + + def cancel_bootstrap(self): + self._soledad_retries = self.MAX_INIT_RETRIES + + def should_retry_initialization(self): + """ + Returns True if we should retry the initialization. + """ + logger.debug("current retries: %s, max retries: %s" % ( + self._soledad_retries, + self.MAX_INIT_RETRIES)) + return self._soledad_retries < self.MAX_INIT_RETRIES + + def increment_retries_count(self): + """ + Increments the count of initialization retries. + """ + self._soledad_retries += 1 + + # initialization + + def load_and_sync_soledad(self): + """ + Once everthing is in the right place, we instantiate and sync + Soledad + + :param srp_auth: SRPAuth object used + :type srp_auth: SRPAuth + """ + srp_auth = self.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) + try: + 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() + + # XXX All these errors should be handled by soledad itself, + # and return a subclass of SoledadInitializationFailed + except socket.timeout: + logger.debug("SOLEDAD TIMED OUT...") + self.soledad_timeout.emit() + except socket.error as exc: + logger.error("Socket error while initializing soledad") + if exc.errno in (111, ): + self.soledad_failed.emit() + except u1db_errors.Unauthorized: + logger.error("Error while initializing soledad " + "(unauthorized).") + self.soledad_failed.emit() + except Exception as exc: + logger.error("Unhandled error while initializating " + "soledad: %r" % (exc,)) + raise + 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 + + api_version = self._provider_config.get_api_version() + + # there is some confusion with this uri, + config_uri = "%s/%s/config/soledad-service.json" % ( + self._provider_config.get_api_uri(), + api_version) + logger.debug('Downloading soledad config from: %s' % config_uri) + + # TODO factor out this srpauth protected get (make decorator) + srp_auth = self.srpauth + 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() + + self._soledad_config.set_api_version(api_version) + + # 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() + + 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 = self.srpauth + + # TODO: use which implementation with known paths + # TODO: Fix for Windows + gpgbin = "/usr/bin/gpg" + + if self._standalone: + gpgbin = os.path.join(self._provider_config.get_path_prefix(), + "..", "apps", "mail", "gpg") + + self._keymanager = KeyManager( + address, + "https://nicknym.%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(), + gpgbinary=gpgbin) + 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, + standalone=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 + :param download_if_needed: If True, it will only download + files if the have changed since the + time it was previously downloaded. + :type download_if_needed: bool + :param standalone: If True, it'll look for paths inside the + bundle (like for gpg) + :type standalone: bool + """ + leap_assert_type(provider_config, ProviderConfig) + + # XXX we should provider a method for setting provider_config + self._provider_config = provider_config + self._download_if_needed = download_if_needed + self._user = user + self._password = password + self._standalone = standalone + + cb_chain = [ + (self._download_config, self.download_config), + (self._gen_key, self.gen_key) + ] + + self.addCallbackChain(cb_chain) |