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Diffstat (limited to 'service/pixelated/config/sessions.py')
| -rw-r--r-- | service/pixelated/config/sessions.py | 311 |
1 files changed, 0 insertions, 311 deletions
diff --git a/service/pixelated/config/sessions.py b/service/pixelated/config/sessions.py deleted file mode 100644 index 594b8e35..00000000 --- a/service/pixelated/config/sessions.py +++ /dev/null @@ -1,311 +0,0 @@ -# -# Copyright (c) 2015 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 __future__ import absolute_import - -import os -import errno -import requests - -from twisted.internet import defer, threads, reactor -from twisted.logger import Logger - -from leap.soledad.common.crypto import WrongMacError, UnknownMacMethodError -from leap.soledad.client import Soledad -from leap.bitmask.mail.incoming.service import IncomingMail -from leap.bitmask.mail.mail import Account -import leap.common.certs as leap_certs -from leap.common.events import ( - register, unregister, - catalog as events -) - -from pixelated.bitmask_libraries.keymanager import Keymanager -from pixelated.adapter.mailstore import LeapMailStore -from pixelated.config import leap_config -from pixelated.bitmask_libraries.smtp import LeapSMTPConfig - -logger = Logger() - - -class LeapSessionFactory(object): - def __init__(self, provider): - self._provider = provider - - @defer.inlineCallbacks - def create(self, username, password, auth): - key = SessionCache.session_key(self._provider, username) - session = SessionCache.lookup_session(key) - if not session: - session = yield self._create_new_session(username, password, auth) - yield session.first_required_sync() - SessionCache.remember_session(key, session) - defer.returnValue(session) - - @defer.inlineCallbacks - def _create_new_session(self, username, password, auth): - account_email = self._provider.address_for(username) - - self._create_database_dir(auth.uuid) - - api_cert = self._provider.provider_api_cert - - soledad = yield self.setup_soledad(auth.token, auth.uuid, password, api_cert) - - mail_store = LeapMailStore(soledad) - - keymanager = yield self.setup_keymanager(self._provider, soledad, account_email, auth.token, auth.uuid) - - smtp_client_cert = self._download_smtp_cert(auth) - smtp_host, smtp_port = self._provider.smtp_info() - smtp_config = LeapSMTPConfig(account_email, smtp_client_cert, smtp_host, smtp_port) - - leap_session = LeapSession(self._provider, auth, mail_store, soledad, keymanager, smtp_config) - - defer.returnValue(leap_session) - - @defer.inlineCallbacks - def setup_soledad(self, - user_token, - user_uuid, - password, - api_cert): - secrets = self._secrets_path(user_uuid) - local_db = self._local_db_path(user_uuid) - server_url = self._provider.discover_soledad_server(user_uuid) - try: - soledad = yield threads.deferToThread(Soledad, - user_uuid.encode('utf-8'), - passphrase=unicode(password, 'utf-8'), - secrets_path=secrets, - local_db_path=local_db, - server_url=server_url, - cert_file=api_cert, - shared_db=None, - auth_token=user_token) - defer.returnValue(soledad) - except (WrongMacError, UnknownMacMethodError), e: - raise SoledadWrongPassphraseException(e) - - @defer.inlineCallbacks - def setup_keymanager(self, provider, soledad, account_email, token, uuid): - keymanager = yield threads.deferToThread(Keymanager, - provider, - soledad, - account_email, - token, - uuid) - defer.returnValue(keymanager) - - def _download_smtp_cert(self, auth): - cert = SmtpClientCertificate(self._provider, auth, self._user_path(auth.uuid)) - return cert.cert_path() - - def _user_path(self, user_uuid): - return os.path.join(leap_config.leap_home, user_uuid) - - def _soledad_path(self, user_uuid): - return os.path.join(leap_config.leap_home, user_uuid, 'soledad') - - def _secrets_path(self, user_uuid): - return os.path.join(self._soledad_path(user_uuid), 'secrets') - - def _local_db_path(self, user_uuid): - return os.path.join(self._soledad_path(user_uuid), 'soledad.db') - - def _create_database_dir(self, user_uuid): - try: - os.makedirs(self._soledad_path(user_uuid)) - except OSError as exc: - if exc.errno == errno.EEXIST and os.path.isdir(self._soledad_path(user_uuid)): - pass - else: - raise - - -class LeapSession(object): - - def __init__(self, provider, user_auth, mail_store, soledad, keymanager, smtp_config): - self.smtp_config = smtp_config - self.provider = provider - self.user_auth = user_auth - self.mail_store = mail_store - self.soledad = soledad - self.keymanager = keymanager - self.fresh_account = False - self.incoming_mail_fetcher = None - self.account = None - self._has_been_initially_synced = False - self._is_closed = False - register(events.KEYMANAGER_FINISHED_KEY_GENERATION, self._set_fresh_account, uid=self.account_email(), replace=True) - - @defer.inlineCallbacks - def first_required_sync(self): - yield self.sync() - yield self.finish_bootstrap() - - @defer.inlineCallbacks - def finish_bootstrap(self): - yield self.keymanager.generate_openpgp_key() - yield self._create_account(self.soledad, self.user_auth.uuid) - self.incoming_mail_fetcher = yield self._create_incoming_mail_fetcher( - self.keymanager, - self.soledad, - self.account, - self.account_email()) - reactor.callFromThread(self.incoming_mail_fetcher.startService) - - def _create_account(self, soledad, user_id): - self.account = Account(soledad, user_id) - return self.account.deferred_initialization - - def _set_fresh_account(self, event, email_address): - logger.debug('Key for email %s has been generated' % email_address) - if email_address == self.account_email(): - self.fresh_account = True - - def account_email(self): - name = self.user_auth.username - return self.provider.address_for(name) - - def close(self): - self.stop_background_jobs() - unregister(events.KEYMANAGER_FINISHED_KEY_GENERATION, uid=self.account_email()) - self.soledad.close() - self._close_account() - self.remove_from_cache() - self._is_closed = True - - @property - def is_closed(self): - return self._is_closed - - def _close_account(self): - if self.account: - self.account.end_session() - - def remove_from_cache(self): - key = SessionCache.session_key(self.provider, self.user_auth.username) - SessionCache.remove_session(key) - - @defer.inlineCallbacks - def _create_incoming_mail_fetcher(self, keymanager, soledad, account, user_mail): - inbox = yield account.callWhenReady(lambda _: account.get_collection_by_mailbox('INBOX')) - defer.returnValue(IncomingMail(keymanager.keymanager, - soledad, - inbox, - user_mail)) - - def stop_background_jobs(self): - if self.incoming_mail_fetcher: - reactor.callFromThread(self.incoming_mail_fetcher.stopService) - self.incoming_mail_fetcher = None - - def sync(self): - try: - return self.soledad.sync() - except Exception as e: - logger.error(e) - raise - - -class SessionCache(object): - - sessions = {} - - @staticmethod - def lookup_session(key): - session = SessionCache.sessions.get(key, None) - if session is not None and session.is_closed: - SessionCache.remove_session(key) - return None - return session - - @staticmethod - def remember_session(key, session): - SessionCache.sessions[key] = session - - @staticmethod - def remove_session(key): - if key in SessionCache.sessions: - del SessionCache.sessions[key] - - @staticmethod - def session_key(provider, username): - return hash((provider, username)) - - -class SmtpClientCertificate(object): - def __init__(self, provider, auth, user_path): - self._provider = provider - self._auth = auth - self._user_path = user_path - - def cert_path(self): - if not self._is_cert_already_downloaded() or self._should_redownload(): - self._download_smtp_cert() - - return self._smtp_client_cert_path() - - def _is_cert_already_downloaded(self): - return os.path.exists(self._smtp_client_cert_path()) - - def _should_redownload(self): - return leap_certs.should_redownload(self._smtp_client_cert_path()) - - def _download_smtp_cert(self): - cert_path = self._smtp_client_cert_path() - - if not os.path.exists(os.path.dirname(cert_path)): - os.makedirs(os.path.dirname(cert_path)) - - self.download_to(cert_path) - - def _smtp_client_cert_path(self): - return os.path.join( - self._user_path, - "providers", - self._provider.domain, - "keys", "client", "smtp.pem") - - def download(self): - cert_url = '%s/%s/smtp_cert' % (self._provider.api_uri, self._provider.api_version) - headers = {} - headers["Authorization"] = 'Token token="{0}"'.format(self._auth.token) - params = {'address': self._auth.username} - response = requests.post( - cert_url, - params=params, - data=params, - verify=self._provider.provider_api_cert, - timeout=15, - headers=headers) - response.raise_for_status() - - client_cert = response.content - - return client_cert - - def download_to(self, target_file): - client_cert = self.download() - - with open(target_file, 'w') as f: - f.write(client_cert) - - -class SoledadWrongPassphraseException(Exception): - def __init__(self, *args, **kwargs): - super(SoledadWrongPassphraseException, self).__init__(*args, **kwargs) |