diff options
Diffstat (limited to 'service/pixelated/bitmask_libraries/session.py')
| -rw-r--r-- | service/pixelated/bitmask_libraries/session.py | 301 |
1 files changed, 0 insertions, 301 deletions
diff --git a/service/pixelated/bitmask_libraries/session.py b/service/pixelated/bitmask_libraries/session.py deleted file mode 100644 index 72ad8520..00000000 --- a/service/pixelated/bitmask_libraries/session.py +++ /dev/null @@ -1,301 +0,0 @@ -# -# 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 traceback -import sys -import os -import requests -import logging - -from twisted.internet import reactor, defer -from pixelated.bitmask_libraries.certs import LeapCertificate -from pixelated.adapter.mailstore import LeapMailStore -from leap.mail.incoming.service import IncomingMail -from leap.mail.mail import Account -from leap.auth import SRPAuth -from .nicknym import NickNym -from .smtp import LeapSMTPConfig -from .soledad import SoledadFactory -import leap.common.certs as leap_certs - -from leap.common.events import ( - register, unregister, - catalog as events -) - - -log = logging.getLogger(__name__) - - -class LeapSession(object): - - def __init__(self, provider, user_auth, mail_store, soledad, nicknym, smtp_config): - self.smtp_config = smtp_config - self.config = provider.config - self.provider = provider - self.user_auth = user_auth - self.mail_store = mail_store - self.soledad = soledad - self.nicknym = nicknym - self.fresh_account = False - self.incoming_mail_fetcher = None - self.account = None - self._has_been_initially_synced = False - self._sem_intial_sync = defer.DeferredLock() - self._is_closed = False - register(events.KEYMANAGER_FINISHED_KEY_GENERATION, self._set_fresh_account, uid=self.account_email()) - - @defer.inlineCallbacks - def initial_sync(self): - yield self._sem_intial_sync.acquire() - try: - yield self.sync() - if not self._has_been_initially_synced: - yield self.after_first_sync() - self._has_been_initially_synced = True - finally: - yield self._sem_intial_sync.release() - defer.returnValue(self) - - @defer.inlineCallbacks - def after_first_sync(self): - yield self.nicknym.generate_openpgp_key() - yield self._create_account(self.soledad, self.user_auth.uuid) - self.incoming_mail_fetcher = yield self._create_incoming_mail_fetcher( - self.nicknym, - 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): - log.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._is_closed = True - self.stop_background_jobs() - unregister(events.KEYMANAGER_FINISHED_KEY_GENERATION, uid=self.account_email()) - self.soledad.close() - self.remove_from_cache() - self._close_account() - - @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, nicknym, soledad, account, user_mail): - inbox = yield account.callWhenReady(lambda _: account.get_collection_by_mailbox('INBOX')) - defer.returnValue(IncomingMail(nicknym.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: - traceback.print_exc(file=sys.stderr) - raise - - -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)) - - SmtpCertDownloader(self._provider, self._auth).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") - - -class SmtpCertDownloader(object): - - def __init__(self, provider, auth): - self._provider = provider - self._auth = auth - - 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=LeapCertificate(self._provider).provider_api_cert, - timeout=self._provider.config.timeout_in_s, - 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 LeapSessionFactory(object): - def __init__(self, provider): - self._provider = provider - self._config = provider.config - - def create(self, username, password, auth): - key = SessionCache.session_key(self._provider, username) - session = SessionCache.lookup_session(key) - if not session: - session = self._create_new_session(username, password, auth) - SessionCache.remember_session(key, session) - - return session - - def _create_new_session(self, username, password, auth): - account_email = self._provider.address_for(username) - - self._create_database_dir(auth.uuid) - - soledad = SoledadFactory.create(auth.token, - auth.uuid, - password, - self._secrets_path(auth.uuid), - self._local_db_path(auth.uuid), - self._provider.discover_soledad_server(auth.uuid), - LeapCertificate(self._provider).provider_api_cert) - - mail_store = LeapMailStore(soledad) - nicknym = self._create_nicknym(account_email, auth.token, auth.uuid, soledad) - - 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) - - return LeapSession(self._provider, auth, mail_store, soledad, nicknym, smtp_config) - - def _download_smtp_cert(self, auth): - cert = SmtpClientCertificate(self._provider, auth, self._user_path(auth.uuid)) - return cert.cert_path() - - def _create_dir(self, path): - try: - os.makedirs(path) - except OSError as exc: - if exc.errno == errno.EEXIST and os.path.isdir(path): - pass - else: - raise - - def _create_nicknym(self, email_address, token, uuid, soledad): - return NickNym(self._provider, self._config, soledad, email_address, token, uuid) - - def _user_path(self, user_uuid): - return os.path.join(self._config.leap_home, user_uuid) - - def _soledad_path(self, user_uuid): - return os.path.join(self._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 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 - else: - 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)) |