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#
# 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/>.
import os
from OpenSSL import SSL
from OpenSSL import crypto
from leap.common.events import (server as events_server,
register, catalog as events)
from leap.soledad.common.errors import InvalidAuthTokenError
from twisted.logger import Logger
from twisted.conch import manhole_tap
from twisted.cred import portal
from twisted.cred.checkers import AllowAnonymousAccess, FilePasswordDB
from twisted.internet import defer
from twisted.internet import reactor
from twisted.internet import ssl
from twisted.internet.task import LoopingCall
from twisted.plugin import getPlugins
from pixelated.adapter.welcome_mail import add_welcome_mail
from pixelated.config import arguments
from pixelated.config import logger
from pixelated.config import services
from pixelated.config.leap import initialize_leap_single_user, init_monkeypatches, initialize_leap_provider
from pixelated.config.services import ServicesFactory, SingleUserServicesFactory
from pixelated.config.site import PixelatedSite
from pixelated.resources.auth import LeapPasswordChecker, PixelatedRealm, PixelatedAuthSessionWrapper, SessionChecker
from pixelated.resources.login_resource import LoginResource
from pixelated.resources.root_resource import RootResource
from pixelated.support.loglinegenerator import ILogLineGenerator
log = Logger()
class UserAgentMode(object):
def __init__(self, is_single_user):
self.is_single_user = is_single_user
@defer.inlineCallbacks
def start_user_agent_in_single_user_mode(root_resource, services_factory, leap_home, leap_session):
log.info('Bootstrap done, loading services for user %s' % leap_session.user_auth.username)
_services = services.Services(leap_session)
yield _services.setup()
if leap_session.fresh_account:
yield add_welcome_mail(leap_session.mail_store)
services_factory.add_session(leap_session.user_auth.uuid, _services)
root_resource.initialize()
# soledad needs lots of threads
reactor.getThreadPool().adjustPoolsize(5, 15)
log.info('Done, the user agent is ready to be used')
def _ssl_options(sslkey, sslcert):
with open(sslkey) as keyfile:
pkey = crypto.load_privatekey(crypto.FILETYPE_PEM, keyfile.read())
with open(sslcert) as certfile:
cert = crypto.load_certificate(crypto.FILETYPE_PEM, certfile.read())
acceptable = ssl.AcceptableCiphers.fromOpenSSLCipherString(
u'ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-SHA:!RC4:HIGH:!MD5:!aNULL:!EDH')
options = ssl.CertificateOptions(privateKey=pkey,
certificate=cert,
method=SSL.TLSv1_2_METHOD,
acceptableCiphers=acceptable)
return options
def _create_service_factory(args):
if args.single_user:
return SingleUserServicesFactory(UserAgentMode(is_single_user=True))
else:
return ServicesFactory(UserAgentMode(is_single_user=False))
def initialize():
log.info('Starting the Pixelated user agent')
args = arguments.parse_user_agent_args()
logger.init(debug=args.debug)
services_factory = _create_service_factory(args)
resource = RootResource(services_factory)
def start():
start_async = _start_mode(args, resource, services_factory)
add_top_level_system_callbacks(start_async, services_factory)
log.info('Running the reactor')
reactor.callWhenRunning(start)
reactor.run()
def start_plugins():
log.info('start_plugins')
def logGeneratedLines():
for p in getPlugins(ILogLineGenerator):
logLine = p.getLogLine()
if logLine is not None:
log.debug(logLine)
LoopingCall(logGeneratedLines).start(1)
def add_top_level_system_callbacks(deferred, services_factory):
def _quit_on_error(failure):
failure.printTraceback()
reactor.stop()
def _log_user_out(event, user_data):
log.info('Invalid soledad token, logging out %s' % user_data)
user_data = {'user_id': user_data['uuid']} if 'uuid' in user_data else {'user_id': user_data, 'using_email': True}
services_factory.destroy_session(**user_data)
def _log_user_out_on_token_expire(leap_session):
register(events.SOLEDAD_INVALID_AUTH_TOKEN, _log_user_out)
return leap_session
deferred.addCallback(_log_user_out_on_token_expire)
deferred.addErrback(_quit_on_error)
def _start_mode(args, resource, services_factory):
log.debug('_start_mode')
if services_factory.mode.is_single_user:
deferred = _start_in_single_user_mode(args, resource, services_factory)
else:
deferred = _start_in_multi_user_mode(args, resource, services_factory)
return deferred
def _start_in_multi_user_mode(args, root_resource, services_factory):
try:
protected_resources = _setup_multi_user(args, root_resource, services_factory)
start_site(args, protected_resources)
reactor.getThreadPool().adjustPoolsize(5, 15)
return defer.succeed(None)
except Exception as e:
return defer.fail(e)
def _setup_multi_user(args, root_resource, services_factory):
if args.provider is None:
raise ValueError('Multi-user mode: provider name is required')
init_monkeypatches()
events_server.ensure_server()
provider = initialize_leap_provider(args.provider, args.leap_provider_cert, args.leap_provider_cert_fingerprint, args.leap_home)
protected_resource = set_up_protected_resources(root_resource, provider, services_factory, banner=args.banner)
return protected_resource
def set_up_protected_resources(root_resource, provider, services_factory, checker=None, banner=None):
if not checker:
checker = LeapPasswordChecker(provider)
session_checker = SessionChecker(services_factory)
realm = PixelatedRealm()
_portal = portal.Portal(realm, [checker, session_checker, AllowAnonymousAccess()])
anonymous_resource = LoginResource(services_factory, _portal, disclaimer_banner=banner)
protected_resource = PixelatedAuthSessionWrapper(_portal, root_resource, anonymous_resource, [])
root_resource.initialize(_portal, disclaimer_banner=banner)
return protected_resource
def _start_in_single_user_mode(args, resource, services_factory):
start_site(args, resource)
deferred = initialize_leap_single_user(args.leap_provider_cert,
args.leap_provider_cert_fingerprint,
args.credentials_file,
args.leap_home)
def _handle_error(exception):
if(exception.type is InvalidAuthTokenError):
log.critical('Got an invalid soledad token, the user agent can\'t synchronize data, exiting')
os._exit(1)
else:
exception.raiseException()
deferred.addCallbacks(
lambda leap_session: start_user_agent_in_single_user_mode(
resource,
services_factory,
args.leap_home,
leap_session), _handle_error)
return deferred
def start_site(config, resource):
log.info('Starting the API on port %s' % config.port)
if config.manhole:
log.info('Starting the manhole on port 8008')
start_plugins()
multiService = manhole_tap.makeService(dict(namespace=globals(),
telnetPort='8008',
sshPort='8009',
sshKeyDir='sshKeyDir',
sshKeyName='id_rsa',
sshKeySize=4096,
passwd='passwd'))
telnetService, sshService = multiService.services
telnetFactory = telnetService.factory
sshFactory = sshService.factory
reactor.listenTCP(8008, telnetFactory, interface='localhost')
reactor.listenTCP(8009, sshFactory, interface='localhost')
if config.sslkey and config.sslcert:
reactor.listenSSL(config.port, PixelatedSite(resource), _ssl_options(config.sslkey, config.sslcert),
interface=config.host)
else:
reactor.listenTCP(config.port, PixelatedSite(resource), interface=config.host)
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