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authorTomás Touceda <chiiph@leap.se>2014-06-19 12:51:11 -0300
committerTomás Touceda <chiiph@leap.se>2014-06-19 12:51:11 -0300
commitb4c26d2b6bf0d84e723d5e7b36042c67a75f268b (patch)
tree0c3c8821085b4696d3503bad637ae8994186d7e1 /src/leap/bitmask/backend
parent4ff7ef29b06b6609c3fbb75ef6a17f500b106025 (diff)
parentd183a864b11a4f6d0d30200126281dd81ccf3c38 (diff)
Merge remote-tracking branch 'refs/remotes/ivan/feature/split-backend-components' into develop
Diffstat (limited to 'src/leap/bitmask/backend')
-rw-r--r--src/leap/bitmask/backend/__init__.py0
-rw-r--r--src/leap/bitmask/backend/components.py1148
-rw-r--r--src/leap/bitmask/backend/leapbackend.py636
-rw-r--r--src/leap/bitmask/backend/leapsignaler.py385
4 files changed, 2169 insertions, 0 deletions
diff --git a/src/leap/bitmask/backend/__init__.py b/src/leap/bitmask/backend/__init__.py
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/src/leap/bitmask/backend/__init__.py
diff --git a/src/leap/bitmask/backend/components.py b/src/leap/bitmask/backend/components.py
new file mode 100644
index 00000000..59fdfb68
--- /dev/null
+++ b/src/leap/bitmask/backend/components.py
@@ -0,0 +1,1148 @@
+# -*- coding: utf-8 -*-
+# components.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/>.
+"""
+Backend components
+"""
+import logging
+import os
+import socket
+import time
+
+from functools import partial
+from threading import Condition
+
+from twisted.internet import threads, defer
+from twisted.python import log
+
+import zope.interface
+import zope.proxy
+
+from leap.bitmask.config.providerconfig import ProviderConfig
+from leap.bitmask.crypto.srpauth import SRPAuth
+from leap.bitmask.crypto.srpregister import SRPRegister
+from leap.bitmask.platform_init import IS_LINUX
+from leap.bitmask.provider.providerbootstrapper import ProviderBootstrapper
+from leap.bitmask.provider.pinned import PinnedProviders
+from leap.bitmask.services import get_supported
+from leap.bitmask.services.eip import eipconfig
+from leap.bitmask.services.eip import get_openvpn_management
+from leap.bitmask.services.eip.eipbootstrapper import EIPBootstrapper
+
+from leap.bitmask.services.eip import vpnlauncher, vpnprocess
+from leap.bitmask.services.eip import linuxvpnlauncher, darwinvpnlauncher
+from leap.bitmask.services.eip import get_vpn_launcher
+
+from leap.bitmask.services.mail.imapcontroller import IMAPController
+from leap.bitmask.services.mail.smtpbootstrapper import SMTPBootstrapper
+from leap.bitmask.services.mail.smtpconfig import SMTPConfig
+
+from leap.bitmask.services.soledad.soledadbootstrapper import \
+ SoledadBootstrapper
+from leap.bitmask.util import force_eval
+
+from leap.common import certs as leap_certs
+
+from leap.keymanager import openpgp
+from leap.keymanager.errors import KeyAddressMismatch, KeyFingerprintMismatch
+
+from leap.soledad.client import NoStorageSecret, PassphraseTooShort
+
+logger = logging.getLogger(__name__)
+
+
+class ILEAPComponent(zope.interface.Interface):
+ """
+ Interface that every component for the backend should comply to
+ """
+
+ key = zope.interface.Attribute("Key id for this component")
+
+
+class ILEAPService(ILEAPComponent):
+ """
+ Interface that every Service needs to implement
+ """
+
+ def start(self, *args, **kwargs):
+ """
+ Start the service.
+ """
+ pass
+
+ def stop(self, *args, **kwargs):
+ """
+ Stops the service.
+ """
+ pass
+
+ def terminate(self):
+ """
+ Terminate the service, not necessarily in a nice way.
+ """
+ pass
+
+ def status(self):
+ """
+ Return a json object with the current status for the service.
+
+ :rtype: object (list, str, dict)
+ """
+ # XXX: Use a namedtuple or a specific object instead of a json
+ # object, since parsing it will be problematic otherwise.
+ # It has to be something easily serializable though.
+ pass
+
+ def set_configs(self, keyval):
+ """
+ Set the config parameters for this Service.
+
+ :param keyval: values to configure
+ :type keyval: dict, {str: str}
+ """
+ pass
+
+ def get_configs(self, keys):
+ """
+ Return the configuration values for the list of keys.
+
+ :param keys: keys to retrieve
+ :type keys: list of str
+
+ :rtype: dict, {str: str}
+ """
+ pass
+
+
+class Provider(object):
+ """
+ Interfaces with setup and bootstrapping operations for a provider
+ """
+
+ zope.interface.implements(ILEAPComponent)
+
+ def __init__(self, signaler=None, bypass_checks=False):
+ """
+ Constructor for the Provider component
+
+ :param signaler: Object in charge of handling communication
+ back to the frontend
+ :type signaler: Signaler
+ :param bypass_checks: Set to true if the app should bypass
+ first round of checks for CA
+ certificates at bootstrap
+ :type bypass_checks: bool
+ """
+ self.key = "provider"
+ self._signaler = signaler
+ self._provider_bootstrapper = ProviderBootstrapper(signaler,
+ bypass_checks)
+ self._download_provider_defer = None
+ self._provider_config = ProviderConfig()
+
+ def setup_provider(self, provider):
+ """
+ Initiate the setup for a provider
+
+ :param provider: URL for the provider
+ :type provider: unicode
+
+ :returns: the defer for the operation running in a thread.
+ :rtype: twisted.internet.defer.Deferred
+ """
+ log.msg("Setting up provider %s..." % (provider.encode("idna"),))
+ pb = self._provider_bootstrapper
+ d = pb.run_provider_select_checks(provider, download_if_needed=True)
+ self._download_provider_defer = d
+ return d
+
+ def cancel_setup_provider(self):
+ """
+ Cancel the ongoing setup provider defer (if any).
+ """
+ d = self._download_provider_defer
+ if d is not None:
+ d.cancel()
+
+ def bootstrap(self, provider):
+ """
+ Second stage of bootstrapping for a provider.
+
+ :param provider: URL for the provider
+ :type provider: unicode
+
+ :returns: the defer for the operation running in a thread.
+ :rtype: twisted.internet.defer.Deferred
+ """
+ d = None
+
+ config = ProviderConfig.get_provider_config(provider)
+ self._provider_config = config
+ if config is not None:
+ d = self._provider_bootstrapper.run_provider_setup_checks(
+ config, download_if_needed=True)
+ else:
+ if self._signaler is not None:
+ self._signaler.signal(
+ self._signaler.PROV_PROBLEM_WITH_PROVIDER_KEY)
+ logger.error("Could not load provider configuration.")
+ self._login_widget.set_enabled(True)
+
+ if d is None:
+ d = defer.Deferred()
+ return d
+
+ def _get_services(self, domain):
+ """
+ Returns a list of services provided by the given provider.
+
+ :param domain: the provider to get the services from.
+ :type domain: str
+
+ :rtype: list of str
+ """
+ services = []
+ provider_config = ProviderConfig.get_provider_config(domain)
+ if provider_config is not None:
+ services = provider_config.get_services()
+
+ return services
+
+ def get_supported_services(self, domain):
+ """
+ Signal a list of supported services provided by the given provider.
+
+ :param domain: the provider to get the services from.
+ :type domain: str
+
+ Signals:
+ prov_get_supported_services -> list of unicode
+ """
+ services = get_supported(self._get_services(domain))
+
+ self._signaler.signal(
+ self._signaler.PROV_GET_SUPPORTED_SERVICES, services)
+
+ def get_all_services(self, providers):
+ """
+ Signal a list of services provided by all the configured providers.
+
+ :param providers: the list of providers to get the services.
+ :type providers: list
+
+ Signals:
+ prov_get_all_services -> list of unicode
+ """
+ services_all = set()
+
+ for domain in providers:
+ services = self._get_services(domain)
+ services_all = services_all.union(set(services))
+
+ self._signaler.signal(
+ self._signaler.PROV_GET_ALL_SERVICES, services_all)
+
+ def get_details(self, domain, lang=None):
+ """
+ Signal a ProviderConfigLight object with the current ProviderConfig
+ settings.
+
+ :param domain: the domain name of the provider.
+ :type domain: str
+ :param lang: the language to use for localized strings.
+ :type lang: str
+
+ Signals:
+ prov_get_details -> ProviderConfigLight
+ """
+ self._signaler.signal(
+ self._signaler.PROV_GET_DETAILS,
+ self._provider_config.get_light_config(domain, lang))
+
+ def get_pinned_providers(self):
+ """
+ Signal the list of pinned provider domains.
+
+ Signals:
+ prov_get_pinned_providers -> list of provider domains
+ """
+ self._signaler.signal(
+ self._signaler.PROV_GET_PINNED_PROVIDERS,
+ PinnedProviders.domains())
+
+
+class Register(object):
+ """
+ Interfaces with setup and bootstrapping operations for a provider
+ """
+
+ zope.interface.implements(ILEAPComponent)
+
+ def __init__(self, signaler=None):
+ """
+ Constructor for the Register component
+
+ :param signaler: Object in charge of handling communication
+ back to the frontend
+ :type signaler: Signaler
+ """
+ self.key = "register"
+ self._signaler = signaler
+
+ def register_user(self, domain, username, password):
+ """
+ Register a user using the domain and password given as parameters.
+
+ :param domain: the domain we need to register the user.
+ :type domain: unicode
+ :param username: the user name
+ :type username: unicode
+ :param password: the password for the username
+ :type password: unicode
+
+ :returns: the defer for the operation running in a thread.
+ :rtype: twisted.internet.defer.Deferred
+ """
+ config = ProviderConfig.get_provider_config(domain)
+ self._provider_config = config
+ if config is not None:
+ srpregister = SRPRegister(signaler=self._signaler,
+ provider_config=config)
+ return threads.deferToThread(
+ partial(srpregister.register_user, username, password))
+ else:
+ if self._signaler is not None:
+ self._signaler.signal(self._signaler.SRP_REGISTRATION_FAILED)
+ logger.error("Could not load provider configuration.")
+
+
+class EIP(object):
+ """
+ Interfaces with setup and launch of EIP
+ """
+
+ zope.interface.implements(ILEAPService)
+
+ def __init__(self, signaler=None):
+ """
+ Constructor for the EIP component
+
+ :param signaler: Object in charge of handling communication
+ back to the frontend
+ :type signaler: Signaler
+ """
+ self.key = "eip"
+ self._signaler = signaler
+ self._eip_bootstrapper = EIPBootstrapper(signaler)
+ self._eip_setup_defer = None
+ self._provider_config = ProviderConfig()
+
+ self._vpn = vpnprocess.VPN(signaler=signaler)
+
+ def setup_eip(self, domain, skip_network=False):
+ """
+ Initiate the setup for a provider
+
+ :param domain: URL for the provider
+ :type domain: unicode
+ :param skip_network: Whether checks that involve network should be done
+ or not
+ :type skip_network: bool
+
+ :returns: the defer for the operation running in a thread.
+ :rtype: twisted.internet.defer.Deferred
+ """
+ config = ProviderConfig.get_provider_config(domain)
+ self._provider_config = config
+ if config is not None:
+ if skip_network:
+ return defer.Deferred()
+ eb = self._eip_bootstrapper
+ d = eb.run_eip_setup_checks(self._provider_config,
+ download_if_needed=True)
+ self._eip_setup_defer = d
+ return d
+ else:
+ raise Exception("No provider setup loaded")
+
+ def cancel_setup_eip(self):
+ """
+ Cancel the ongoing setup eip defer (if any).
+ """
+ d = self._eip_setup_defer
+ if d is not None:
+ d.cancel()
+
+ def _start_eip(self, restart=False):
+ """
+ Start EIP
+
+ :param restart: whether is is a restart.
+ :type restart: bool
+ """
+ provider_config = self._provider_config
+ eip_config = eipconfig.EIPConfig()
+ domain = provider_config.get_domain()
+
+ loaded = eipconfig.load_eipconfig_if_needed(
+ provider_config, eip_config, domain)
+
+ if not self._can_start(domain):
+ if self._signaler is not None:
+ self._signaler.signal(self._signaler.EIP_CONNECTION_ABORTED)
+ return
+
+ if not loaded:
+ if self._signaler is not None:
+ self._signaler.signal(self._signaler.EIP_CONNECTION_ABORTED)
+ logger.error("Tried to start EIP but cannot find any "
+ "available provider!")
+ return
+
+ host, port = get_openvpn_management()
+ self._vpn.start(eipconfig=eip_config,
+ providerconfig=provider_config,
+ socket_host=host, socket_port=port,
+ restart=restart)
+
+ def start(self, *args, **kwargs):
+ """
+ Start the service.
+ """
+ signaler = self._signaler
+
+ if not self._provider_config.loaded():
+ # This means that the user didn't call setup_eip first.
+ self._signaler.signal(signaler.BACKEND_BAD_CALL, "EIP.start(), "
+ "no provider loaded")
+ return
+
+ try:
+ self._start_eip(*args, **kwargs)
+ except vpnprocess.OpenVPNAlreadyRunning:
+ signaler.signal(signaler.EIP_OPENVPN_ALREADY_RUNNING)
+ except vpnprocess.AlienOpenVPNAlreadyRunning:
+ signaler.signal(signaler.EIP_ALIEN_OPENVPN_ALREADY_RUNNING)
+ except vpnlauncher.OpenVPNNotFoundException:
+ signaler.signal(signaler.EIP_OPENVPN_NOT_FOUND_ERROR)
+ except vpnlauncher.VPNLauncherException:
+ # TODO: this seems to be used for 'gateway not found' only.
+ # see vpnlauncher.py
+ signaler.signal(signaler.EIP_VPN_LAUNCHER_EXCEPTION)
+ except linuxvpnlauncher.EIPNoPolkitAuthAgentAvailable:
+ signaler.signal(signaler.EIP_NO_POLKIT_AGENT_ERROR)
+ except linuxvpnlauncher.EIPNoPkexecAvailable:
+ signaler.signal(signaler.EIP_NO_PKEXEC_ERROR)
+ except darwinvpnlauncher.EIPNoTunKextLoaded:
+ signaler.signal(signaler.EIP_NO_TUN_KEXT_ERROR)
+ except Exception as e:
+ logger.error("Unexpected problem: {0!r}".format(e))
+ else:
+ logger.debug('EIP: no errors')
+
+ def _do_stop(self, shutdown=False, restart=False):
+ """
+ Stop the service. This is run in a thread to avoid blocking.
+ """
+ self._vpn.terminate(shutdown, restart)
+ if IS_LINUX:
+ self._wait_for_firewall_down()
+
+ def stop(self, shutdown=False, restart=False):
+ """
+ Stop the service.
+ """
+ return threads.deferToThread(self._do_stop, shutdown, restart)
+
+ def _wait_for_firewall_down(self):
+ """
+ Wait for the firewall to come down.
+ """
+ # Due to how we delay the resolvconf action in linux.
+ # XXX this *has* to wait for a reasonable lapse, since we have some
+ # delay in vpn.terminate.
+ # For a better solution it should be signaled from backend that
+ # everything is clear to proceed, or a timeout happened.
+ MAX_FW_WAIT_RETRIES = 25
+ FW_WAIT_STEP = 0.5
+
+ retry = 1
+
+ while retry <= MAX_FW_WAIT_RETRIES:
+ if self._vpn.is_fw_down():
+ self._signaler.signal(self._signaler.EIP_STOPPED)
+ return
+ else:
+ #msg = "Firewall is not down yet, waiting... {0} of {1}"
+ #msg = msg.format(retry, MAX_FW_WAIT_RETRIES)
+ #logger.debug(msg)
+ time.sleep(FW_WAIT_STEP)
+ retry += 1
+ logger.warning("After waiting, firewall is not down... "
+ "You might experience lack of connectivity")
+
+ def terminate(self):
+ """
+ Terminate the service, not necessarily in a nice way.
+ """
+ self._vpn.killit()
+
+ def status(self):
+ """
+ Return a json object with the current status for the service.
+
+ :rtype: object (list, str, dict)
+ """
+ # XXX: Use a namedtuple or a specific object instead of a json
+ # object, since parsing it will be problematic otherwise.
+ # It has to be something easily serializable though.
+ pass
+
+ def _provider_is_initialized(self, domain):
+ """
+ Return whether the given domain is initialized or not.
+
+ :param domain: the domain to check
+ :type domain: str
+
+ :returns: True if is initialized, False otherwise.
+ :rtype: bool
+ """
+ eipconfig_path = eipconfig.get_eipconfig_path(domain, relative=False)
+ if os.path.isfile(eipconfig_path):
+ return True
+ else:
+ return False
+
+ def get_initialized_providers(self, domains):
+ """
+ Signal a list of the given domains and if they are initialized or not.
+
+ :param domains: the list of domains to check.
+ :type domain: list of str
+
+ Signals:
+ eip_get_initialized_providers -> list of tuple(unicode, bool)
+ """
+ filtered_domains = []
+ for domain in domains:
+ is_initialized = self._provider_is_initialized(domain)
+ filtered_domains.append((domain, is_initialized))
+
+ if self._signaler is not None:
+ self._signaler.signal(self._signaler.EIP_GET_INITIALIZED_PROVIDERS,
+ filtered_domains)
+
+ def tear_fw_down(self):
+ """
+ Tear the firewall down.
+ """
+ self._vpn.tear_down_firewall()
+
+ def get_gateways_list(self, domain):
+ """
+ Signal a list of gateways for the given provider.
+
+ :param domain: the domain to get the gateways.
+ :type domain: str
+
+ Signals:
+ eip_get_gateways_list -> list of unicode
+ eip_get_gateways_list_error
+ eip_uninitialized_provider
+ """
+ if not self._provider_is_initialized(domain):
+ if self._signaler is not None:
+ self._signaler.signal(
+ self._signaler.EIP_UNINITIALIZED_PROVIDER)
+ return
+
+ eip_config = eipconfig.EIPConfig()
+ provider_config = ProviderConfig.get_provider_config(domain)
+
+ api_version = provider_config.get_api_version()
+ eip_config.set_api_version(api_version)
+ eip_loaded = eip_config.load(eipconfig.get_eipconfig_path(domain))
+
+ # check for other problems
+ if not eip_loaded or provider_config is None:
+ if self._signaler is not None:
+ self._signaler.signal(
+ self._signaler.EIP_GET_GATEWAYS_LIST_ERROR)
+ return
+
+ gateways = eipconfig.VPNGatewaySelector(eip_config).get_gateways_list()
+
+ if self._signaler is not None:
+ self._signaler.signal(
+ self._signaler.EIP_GET_GATEWAYS_LIST, gateways)
+
+ def _can_start(self, domain):
+ """
+ Returns True if it has everything that is needed to run EIP,
+ False otherwise
+
+ :param domain: the domain for the provider to check
+ :type domain: str
+ """
+ eip_config = eipconfig.EIPConfig()
+ provider_config = ProviderConfig.get_provider_config(domain)
+
+ api_version = provider_config.get_api_version()
+ eip_config.set_api_version(api_version)
+ eip_loaded = eip_config.load(eipconfig.get_eipconfig_path(domain))
+
+ launcher = get_vpn_launcher()
+ ovpn_path = force_eval(launcher.OPENVPN_BIN_PATH)
+ if not os.path.isfile(ovpn_path):
+ logger.error("Cannot start OpenVPN, binary not found")
+ return False
+
+ # check for other problems
+ if not eip_loaded or provider_config is None:
+ logger.error("Cannot load provider and eip config, cannot "
+ "autostart")
+ return False
+
+ client_cert_path = eip_config.\
+ get_client_cert_path(provider_config, about_to_download=False)
+
+ if leap_certs.should_redownload(client_cert_path):
+ logger.error("The client should redownload the certificate,"
+ " cannot autostart")
+ return False
+
+ if not os.path.isfile(client_cert_path):
+ logger.error("Can't find the certificate, cannot autostart")
+ return False
+
+ return True
+
+ def can_start(self, domain):
+ """
+ Signal whether it has everything that is needed to run EIP or not
+
+ :param domain: the domain for the provider to check
+ :type domain: str
+
+ Signals:
+ eip_can_start
+ eip_cannot_start
+ """
+ if self._can_start(domain):
+ if self._signaler is not None:
+ self._signaler.signal(self._signaler.EIP_CAN_START)
+ else:
+ if self._signaler is not None:
+ self._signaler.signal(self._signaler.EIP_CANNOT_START)
+
+ def check_dns(self, domain):
+ """
+ Check if we can resolve the given domain name.
+
+ :param domain: the domain to check.
+ :type domain: str
+ """
+ def do_check():
+ """
+ Try to resolve the domain name.
+ """
+ socket.gethostbyname(domain.encode('idna'))
+
+ def check_ok(_):
+ """
+ Callback handler for `do_check`.
+ """
+ self._signaler.signal(self._signaler.EIP_DNS_OK)
+ logger.debug("DNS check OK")
+
+ def check_err(failure):
+ """
+ Errback handler for `do_check`.
+
+ :param failure: the failure that triggered the errback.
+ :type failure: twisted.python.failure.Failure
+ """
+ logger.debug("Can't resolve hostname. {0!r}".format(failure))
+
+ self._signaler.signal(self._signaler.EIP_DNS_ERROR)
+
+ # python 2.7.4 raises socket.error
+ # python 2.7.5 raises socket.gaierror
+ failure.trap(socket.gaierror, socket.error)
+
+ d = threads.deferToThread(do_check)
+ d.addCallback(check_ok)
+ d.addErrback(check_err)
+
+
+class Soledad(object):
+ """
+ Interfaces with setup of Soledad.
+ """
+ zope.interface.implements(ILEAPComponent)
+
+ def __init__(self, soledad_proxy, keymanager_proxy, signaler=None):
+ """
+ Constructor for the Soledad component.
+
+ :param soledad_proxy: proxy to pass around a Soledad object.
+ :type soledad_proxy: zope.ProxyBase
+ :param keymanager_proxy: proxy to pass around a Keymanager object.
+ :type keymanager_proxy: zope.ProxyBase
+ :param signaler: Object in charge of handling communication
+ back to the frontend
+ :type signaler: Signaler
+ """
+ self.key = "soledad"
+ self._soledad_proxy = soledad_proxy
+ self._keymanager_proxy = keymanager_proxy
+ self._signaler = signaler
+ self._soledad_bootstrapper = SoledadBootstrapper(signaler)
+ self._soledad_defer = None
+
+ def bootstrap(self, username, domain, password):
+ """
+ Bootstrap Soledad with the user credentials.
+
+ Signals:
+ soledad_download_config
+ soledad_gen_key
+
+ :param user: user's login
+ :type user: unicode
+ :param domain: the domain that we are using.
+ :type domain: unicode
+ :param password: user's password
+ :type password: unicode
+ """
+ provider_config = ProviderConfig.get_provider_config(domain)
+ if provider_config is not None:
+ self._soledad_defer = threads.deferToThread(
+ self._soledad_bootstrapper.run_soledad_setup_checks,
+ provider_config, username, password,
+ download_if_needed=True)
+ self._soledad_defer.addCallback(self._set_proxies_cb)
+ else:
+ if self._signaler is not None:
+ self._signaler.signal(self._signaler.SOLEDAD_BOOTSTRAP_FAILED)
+ logger.error("Could not load provider configuration.")
+
+ return self._soledad_defer
+
+ def _set_proxies_cb(self, _):
+ """
+ Update the soledad and keymanager proxies to reference the ones created
+ in the bootstrapper.
+ """
+ zope.proxy.setProxiedObject(self._soledad_proxy,
+ self._soledad_bootstrapper.soledad)
+ zope.proxy.setProxiedObject(self._keymanager_proxy,
+ self._soledad_bootstrapper.keymanager)
+
+ def load_offline(self, username, password, uuid):
+ """
+ Load the soledad database in offline mode.
+
+ :param username: full user id (user@provider)
+ :type username: str or unicode
+ :param password: the soledad passphrase
+ :type password: unicode
+ :param uuid: the user uuid
+ :type uuid: str or unicode
+
+ Signals:
+ Signaler.soledad_offline_finished
+ Signaler.soledad_offline_failed
+ """
+ self._soledad_bootstrapper.load_offline_soledad(
+ username, password, uuid)
+
+ def cancel_bootstrap(self):
+ """
+ Cancel the ongoing soledad bootstrap (if any).
+ """
+ if self._soledad_defer is not None:
+ logger.debug("Cancelling soledad defer.")
+ self._soledad_defer.cancel()
+ self._soledad_defer = None
+ zope.proxy.setProxiedObject(self._soledad_proxy, None)
+
+ def close(self):
+ """
+ Close soledad database.
+ """
+ if not zope.proxy.sameProxiedObjects(self._soledad_proxy, None):
+ self._soledad_proxy.close()
+ zope.proxy.setProxiedObject(self._soledad_proxy, None)
+
+ def _change_password_ok(self, _):
+ """
+ Password change callback.
+ """
+ if self._signaler is not None:
+ self._signaler.signal(self._signaler.SOLEDAD_PASSWORD_CHANGE_OK)
+
+ def _change_password_error(self, failure):
+ """
+ Password change errback.
+
+ :param failure: failure object containing problem.
+ :type failure: twisted.python.failure.Failure
+ """
+ if failure.check(NoStorageSecret):
+ logger.error("No storage secret for password change in Soledad.")
+ if failure.check(PassphraseTooShort):
+ logger.error("Passphrase too short.")
+
+ if self._signaler is not None:
+ self._signaler.signal(self._signaler.SOLEDAD_PASSWORD_CHANGE_ERROR)
+
+ def change_password(self, new_password):
+ """
+ Change the database's password.
+
+ :param new_password: the new password.
+ :type new_password: unicode
+
+ :returns: a defer to interact with.
+ :rtype: twisted.internet.defer.Deferred
+ """
+ d = threads.deferToThread(self._soledad_proxy.change_passphrase,
+ new_password)
+ d.addCallback(self._change_password_ok)
+ d.addErrback(self._change_password_error)
+
+
+class Keymanager(object):
+ """
+ Interfaces with KeyManager.
+ """
+ zope.interface.implements(ILEAPComponent)
+
+ def __init__(self, keymanager_proxy, signaler=None):
+ """
+ Constructor for the Keymanager component.
+
+ :param keymanager_proxy: proxy to pass around a Keymanager object.
+ :type keymanager_proxy: zope.ProxyBase
+ :param signaler: Object in charge of handling communication
+ back to the frontend
+ :type signaler: Signaler
+ """
+ self.key = "keymanager"
+ self._keymanager_proxy = keymanager_proxy
+ self._signaler = signaler
+
+ def import_keys(self, username, filename):
+ """
+ Imports the username's key pair.
+ Those keys need to be ascii armored.
+
+ :param username: the user that will have the imported pair of keys.
+ :type username: str
+ :param filename: the name of the file where the key pair is stored.
+ :type filename: str
+ """
+ # NOTE: This feature is disabled right now since is dangerous
+ return
+
+ new_key = ''
+ signal = None
+ try:
+ with open(filename, 'r') as keys_file:
+ new_key = keys_file.read()
+ except IOError as e:
+ logger.error("IOError importing key. {0!r}".format(e))
+ signal = self._signaler.KEYMANAGER_IMPORT_IOERROR
+ self._signaler.signal(signal)
+ return
+
+ keymanager = self._keymanager_proxy
+ try:
+ public_key, private_key = keymanager.parse_openpgp_ascii_key(
+ new_key)
+ except (KeyAddressMismatch, KeyFingerprintMismatch) as e:
+ logger.error(repr(e))
+ signal = self._signaler.KEYMANAGER_IMPORT_DATAMISMATCH
+ self._signaler.signal(signal)
+ return
+
+ if public_key is None or private_key is None:
+ signal = self._signaler.KEYMANAGER_IMPORT_MISSINGKEY
+ self._signaler.signal(signal)
+ return
+
+ current_public_key = keymanager.get_key(username, openpgp.OpenPGPKey)
+ if public_key.address != current_public_key.address:
+ logger.error("The key does not match the ID")
+ signal = self._signaler.KEYMANAGER_IMPORT_ADDRESSMISMATCH
+ self._signaler.signal(signal)
+ return
+
+ keymanager.delete_key(self._key)
+ keymanager.delete_key(self._key_priv)
+ keymanager.put_key(public_key)
+ keymanager.put_key(private_key)
+ keymanager.send_key(openpgp.OpenPGPKey)
+
+ logger.debug('Import ok')
+ signal = self._signaler.KEYMANAGER_IMPORT_OK
+
+ self._signaler.signal(signal)
+
+ def export_keys(self, username, filename):
+ """
+ Export the given username's keys to a file.
+
+ :param username: the username whos keys we need to export.
+ :type username: str
+ :param filename: the name of the file where we want to save the keys.
+ :type filename: str
+ """
+ keymanager = self._keymanager_proxy
+
+ public_key = keymanager.get_key(username, openpgp.OpenPGPKey)
+ private_key = keymanager.get_key(username, openpgp.OpenPGPKey,
+ private=True)
+ try:
+ with open(filename, 'w') as keys_file:
+ keys_file.write(public_key.key_data)
+ keys_file.write(private_key.key_data)
+
+ logger.debug('Export ok')
+ self._signaler.signal(self._signaler.KEYMANAGER_EXPORT_OK)
+ except IOError as e:
+ logger.error("IOError exporting key. {0!r}".format(e))
+ self._signaler.signal(self._signaler.KEYMANAGER_EXPORT_ERROR)
+
+ def list_keys(self):
+ """
+ List all the keys stored in the local DB.
+ """
+ keys = self._keymanager_proxy.get_all_keys_in_local_db()
+ self._signaler.signal(self._signaler.KEYMANAGER_KEYS_LIST, keys)
+
+ def get_key_details(self, username):
+ """
+ List all the keys stored in the local DB.
+ """
+ public_key = self._keymanager_proxy.get_key(username,
+ openpgp.OpenPGPKey)
+ details = (public_key.key_id, public_key.fingerprint)
+ self._signaler.signal(self._signaler.KEYMANAGER_KEY_DETAILS, details)
+
+
+class Mail(object):
+ """
+ Interfaces with setup and launch of Mail.
+ """
+ # We give each service some time to come to a halt before forcing quit
+ SERVICE_STOP_TIMEOUT = 20
+
+ zope.interface.implements(ILEAPComponent)
+
+ def __init__(self, soledad_proxy, keymanager_proxy, signaler=None):
+ """
+ Constructor for the Mail component.
+
+ :param soledad_proxy: proxy to pass around a Soledad object.
+ :type soledad_proxy: zope.ProxyBase
+ :param keymanager_proxy: proxy to pass around a Keymanager object.
+ :type keymanager_proxy: zope.ProxyBase
+ :param signaler: Object in charge of handling communication
+ back to the frontend
+ :type signaler: Signaler
+ """
+ self.key = "mail"
+ self._signaler = signaler
+ self._soledad_proxy = soledad_proxy
+ self._keymanager_proxy = keymanager_proxy
+ self._imap_controller = IMAPController(self._soledad_proxy,
+ self._keymanager_proxy)
+ self._smtp_bootstrapper = SMTPBootstrapper()
+ self._smtp_config = SMTPConfig()
+
+ def start_smtp_service(self, full_user_id, download_if_needed=False):
+ """
+ Start the SMTP service.
+
+ :param full_user_id: user id, in the form "user@provider"
+ :type full_user_id: str
+ :param download_if_needed: True if it should check for mtime
+ for the file
+ :type download_if_needed: bool
+
+ :returns: a defer to interact with.
+ :rtype: twisted.internet.defer.Deferred
+ """
+ return threads.deferToThread(
+ self._smtp_bootstrapper.start_smtp_service,
+ self._keymanager_proxy, full_user_id, download_if_needed)
+
+ def start_imap_service(self, full_user_id, offline=False):
+ """
+ Start the IMAP service.
+
+ :param full_user_id: user id, in the form "user@provider"
+ :type full_user_id: str
+ :param offline: whether imap should start in offline mode or not.
+ :type offline: bool
+
+ :returns: a defer to interact with.
+ :rtype: twisted.internet.defer.Deferred
+ """
+ return threads.deferToThread(
+ self._imap_controller.start_imap_service,
+ full_user_id, offline)
+
+ def stop_smtp_service(self):
+ """
+ Stop the SMTP service.
+
+ :returns: a defer to interact with.
+ :rtype: twisted.internet.defer.Deferred
+ """
+ return threads.deferToThread(self._smtp_bootstrapper.stop_smtp_service)
+
+ def _stop_imap_service(self):
+ """
+ Stop imap and wait until the service is stopped to signal that is done.
+ """
+ cv = Condition()
+ cv.acquire()
+ threads.deferToThread(self._imap_controller.stop_imap_service, cv)
+ logger.debug('Waiting for imap service to stop.')
+ cv.wait(self.SERVICE_STOP_TIMEOUT)
+ logger.debug('IMAP stopped')
+ self._signaler.signal(self._signaler.IMAP_STOPPED)
+
+ def stop_imap_service(self):
+ """
+ Stop imap service (fetcher, factory and port).
+
+ :returns: a defer to interact with.
+ :rtype: twisted.internet.defer.Deferred
+ """
+ return threads.deferToThread(self._stop_imap_service)
+
+
+class Authenticate(object):
+ """
+ Interfaces with setup and bootstrapping operations for a provider
+ """
+
+ zope.interface.implements(ILEAPComponent)
+
+ def __init__(self, signaler=None):
+ """
+ Constructor for the Authenticate component
+
+ :param signaler: Object in charge of handling communication
+ back to the frontend
+ :type signaler: Signaler
+ """
+ self.key = "authenticate"
+ self._signaler = signaler
+ self._login_defer = None
+ self._srp_auth = SRPAuth(ProviderConfig(), self._signaler)
+
+ def login(self, domain, username, password):
+ """
+ Execute the whole authentication process for a user
+
+ :param domain: the domain where we need to authenticate.
+ :type domain: unicode
+ :param username: username for this session
+ :type username: str
+ :param password: password for this user
+ :type password: str
+
+ :returns: the defer for the operation running in a thread.
+ :rtype: twisted.internet.defer.Deferred
+ """
+ config = ProviderConfig.get_provider_config(domain)
+ if config is not None:
+ self._srp_auth = SRPAuth(config, self._signaler)
+ self._login_defer = self._srp_auth.authenticate(username, password)
+ return self._login_defer
+ else:
+ if self._signaler is not None:
+ self._signaler.signal(self._signaler.SRP_AUTH_ERROR)
+ logger.error("Could not load provider configuration.")
+
+ def cancel_login(self):
+ """
+ Cancel the ongoing login defer (if any).
+ """
+ d = self._login_defer
+ if d is not None:
+ d.cancel()
+
+ def change_password(self, current_password, new_password):
+ """
+ Change the user's password.
+
+ :param current_password: the current password of the user.
+ :type current_password: str
+ :param new_password: the new password for the user.
+ :type new_password: str
+
+ :returns: a defer to interact with.
+ :rtype: twisted.internet.defer.Deferred
+ """
+ if not self._is_logged_in():
+ if self._signaler is not None:
+ self._signaler.signal(self._signaler.SRP_NOT_LOGGED_IN_ERROR)
+ return
+
+ return self._srp_auth.change_password(current_password, new_password)
+
+ def logout(self):
+ """
+ Log out the current session.
+ Expects a session_id to exists, might raise AssertionError
+ """
+ if not self._is_logged_in():
+ if self._signaler is not None:
+ self._signaler.signal(self._signaler.SRP_NOT_LOGGED_IN_ERROR)
+ return
+
+ self._srp_auth.logout()
+
+ def _is_logged_in(self):
+ """
+ Return whether the user is logged in or not.
+
+ :rtype: bool
+ """
+ return (self._srp_auth is not None and
+ self._srp_auth.is_authenticated())
+
+ def get_logged_in_status(self):
+ """
+ Signal if the user is currently logged in or not.
+ """
+ if self._signaler is None:
+ return
+
+ signal = None
+ if self._is_logged_in():
+ signal = self._signaler.SRP_STATUS_LOGGED_IN
+ else:
+ signal = self._signaler.SRP_STATUS_NOT_LOGGED_IN
+
+ self._signaler.signal(signal)
diff --git a/src/leap/bitmask/backend/leapbackend.py b/src/leap/bitmask/backend/leapbackend.py
new file mode 100644
index 00000000..3c5222f4
--- /dev/null
+++ b/src/leap/bitmask/backend/leapbackend.py
@@ -0,0 +1,636 @@
+# -*- coding: utf-8 -*-
+# leapbackend.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/>.
+"""
+Backend for GUI/Logic communication.
+"""
+import logging
+
+from Queue import Queue, Empty
+
+from twisted.internet import reactor
+from twisted.internet import threads, defer
+from twisted.internet.task import LoopingCall
+
+import zope.interface
+import zope.proxy
+
+from leap.bitmask.backend.leapsignaler import Signaler
+from leap.bitmask.backend import components
+
+logger = logging.getLogger(__name__)
+
+
+class Backend(object):
+ """
+ Backend for everything, the UI should only use this class.
+ """
+
+ PASSED_KEY = "passed"
+ ERROR_KEY = "error"
+
+ def __init__(self, bypass_checks=False):
+ """
+ Constructor for the backend.
+ """
+ # Components map for the commands received
+ self._components = {}
+
+ # Ongoing defers that will be cancelled at stop time
+ self._ongoing_defers = []
+
+ # Signaler object to translate commands into Qt signals
+ self._signaler = Signaler()
+
+ # Objects needed by several components, so we make a proxy and pass
+ # them around
+ self._soledad_proxy = zope.proxy.ProxyBase(None)
+ self._keymanager_proxy = zope.proxy.ProxyBase(None)
+
+ # Component registration
+ self._register(components.Provider(self._signaler, bypass_checks))
+ self._register(components.Register(self._signaler))
+ self._register(components.Authenticate(self._signaler))
+ self._register(components.EIP(self._signaler))
+ self._register(components.Soledad(self._soledad_proxy,
+ self._keymanager_proxy,
+ self._signaler))
+ self._register(components.Keymanager(self._keymanager_proxy,
+ self._signaler))
+ self._register(components.Mail(self._soledad_proxy,
+ self._keymanager_proxy,
+ self._signaler))
+
+ # We have a looping call on a thread executing all the
+ # commands in queue. Right now this queue is an actual Queue
+ # object, but it'll become the zmq recv_multipart queue
+ self._lc = LoopingCall(threads.deferToThread, self._worker)
+
+ # Temporal call_queue for worker, will be replaced with
+ # recv_multipart os something equivalent in the loopingcall
+ self._call_queue = Queue()
+
+ @property
+ def signaler(self):
+ """
+ Public signaler access to let the UI connect to its signals.
+ """
+ return self._signaler
+
+ def start(self):
+ """
+ Starts the looping call
+ """
+ logger.debug("Starting worker...")
+ self._lc.start(0.01)
+
+ def stop(self):
+ """
+ Stops the looping call and tries to cancel all the defers.
+ """
+ reactor.callLater(2, self._stop)
+
+ def _stop(self):
+ """
+ Delayed stopping of worker. Called from `stop`.
+ """
+ logger.debug("Stopping worker...")
+ if self._lc.running:
+ self._lc.stop()
+ else:
+ logger.warning("Looping call is not running, cannot stop")
+
+ logger.debug("Cancelling ongoing defers...")
+ while len(self._ongoing_defers) > 0:
+ d = self._ongoing_defers.pop()
+ d.cancel()
+ logger.debug("Defers cancelled.")
+
+ def _register(self, component):
+ """
+ Registers a component in this backend
+
+ :param component: Component to register
+ :type component: any object that implements ILEAPComponent
+ """
+ # TODO: assert that the component implements the interfaces
+ # expected
+ try:
+ self._components[component.key] = component
+ except Exception:
+ logger.error("There was a problem registering %s" % (component,))
+
+ def _signal_back(self, _, signal):
+ """
+ Helper method to signal back (callback like behavior) to the
+ UI that an operation finished.
+
+ :param signal: signal name
+ :type signal: str
+ """
+ self._signaler.signal(signal)
+
+ def _worker(self):
+ """
+ Worker method, called from a different thread and as a part of
+ a looping call
+ """
+ try:
+ # this'll become recv_multipart
+ cmd = self._call_queue.get(block=False)
+
+ # cmd is: component, method, signalback, *args
+ func = getattr(self._components[cmd[0]], cmd[1])
+ d = func(*cmd[3:])
+ if d is not None: # d may be None if a defer chain is cancelled.
+ # A call might not have a callback signal, but if it does,
+ # we add it to the chain
+ if cmd[2] is not None:
+ d.addCallbacks(self._signal_back, logger.error, cmd[2])
+ d.addCallbacks(self._done_action, logger.error,
+ callbackKeywords={"d": d})
+ d.addErrback(logger.error)
+ self._ongoing_defers.append(d)
+ except Empty:
+ # If it's just empty we don't have anything to do.
+ pass
+ except defer.CancelledError:
+ logger.debug("defer cancelled somewhere (CancelledError).")
+ except Exception as e:
+ # But we log the rest
+ logger.exception("Unexpected exception: {0!r}".format(e))
+
+ def _done_action(self, _, d):
+ """
+ Remover of the defer once it's done
+
+ :param d: defer to remove
+ :type d: twisted.internet.defer.Deferred
+ """
+ if d in self._ongoing_defers:
+ self._ongoing_defers.remove(d)
+
+ # XXX: Temporal interface until we migrate to zmq
+ # We simulate the calls to zmq.send_multipart. Once we separate
+ # this in two processes, the methods bellow can be changed to
+ # send_multipart and this backend class will be really simple.
+
+ def provider_setup(self, provider):
+ """
+ Initiate the setup for a provider.
+
+ :param provider: URL for the provider
+ :type provider: unicode
+
+ Signals:
+ prov_unsupported_client
+ prov_unsupported_api
+ prov_name_resolution -> { PASSED_KEY: bool, ERROR_KEY: str }
+ prov_https_connection -> { PASSED_KEY: bool, ERROR_KEY: str }
+ prov_download_provider_info -> { PASSED_KEY: bool, ERROR_KEY: str }
+ """
+ self._call_queue.put(("provider", "setup_provider", None, provider))
+
+ def provider_cancel_setup(self):
+ """
+ Cancel the ongoing setup provider (if any).
+ """
+ self._call_queue.put(("provider", "cancel_setup_provider", None))
+
+ def provider_bootstrap(self, provider):
+ """
+ Second stage of bootstrapping for a provider.
+
+ :param provider: URL for the provider
+ :type provider: unicode
+
+ Signals:
+ prov_problem_with_provider
+ prov_download_ca_cert -> {PASSED_KEY: bool, ERROR_KEY: str}
+ prov_check_ca_fingerprint -> {PASSED_KEY: bool, ERROR_KEY: str}
+ prov_check_api_certificate -> {PASSED_KEY: bool, ERROR_KEY: str}
+ """
+ self._call_queue.put(("provider", "bootstrap", None, provider))
+
+ def provider_get_supported_services(self, domain):
+ """
+ Signal a list of supported services provided by the given provider.
+
+ :param domain: the provider to get the services from.
+ :type domain: str
+
+ Signals:
+ prov_get_supported_services -> list of unicode
+ """
+ self._call_queue.put(("provider", "get_supported_services", None,
+ domain))
+
+ def provider_get_all_services(self, providers):
+ """
+ Signal a list of services provided by all the configured providers.
+
+ :param providers: the list of providers to get the services.
+ :type providers: list
+
+ Signals:
+ prov_get_all_services -> list of unicode
+ """
+ self._call_queue.put(("provider", "get_all_services", None,
+ providers))
+
+ def provider_get_details(self, domain, lang):
+ """
+ Signal a ProviderConfigLight object with the current ProviderConfig
+ settings.
+
+ :param domain: the domain name of the provider.
+ :type domain: str
+ :param lang: the language to use for localized strings.
+ :type lang: str
+
+ Signals:
+ prov_get_details -> ProviderConfigLight
+ """
+ self._call_queue.put(("provider", "get_details", None, domain, lang))
+
+ def provider_get_pinned_providers(self):
+ """
+ Signal the pinned providers.
+
+ Signals:
+ prov_get_pinned_providers -> list of provider domains
+ """
+ self._call_queue.put(("provider", "get_pinned_providers", None))
+
+ def user_register(self, provider, username, password):
+ """
+ Register a user using the domain and password given as parameters.
+
+ :param domain: the domain we need to register the user.
+ :type domain: unicode
+ :param username: the user name
+ :type username: unicode
+ :param password: the password for the username
+ :type password: unicode
+
+ Signals:
+ srp_registration_finished
+ srp_registration_taken
+ srp_registration_failed
+ """
+ self._call_queue.put(("register", "register_user", None, provider,
+ username, password))
+
+ def eip_setup(self, provider, skip_network=False):
+ """
+ Initiate the setup for a provider
+
+ :param provider: URL for the provider
+ :type provider: unicode
+ :param skip_network: Whether checks that involve network should be done
+ or not
+ :type skip_network: bool
+
+ Signals:
+ eip_config_ready -> {PASSED_KEY: bool, ERROR_KEY: str}
+ eip_client_certificate_ready -> {PASSED_KEY: bool, ERROR_KEY: str}
+ eip_cancelled_setup
+ """
+ self._call_queue.put(("eip", "setup_eip", None, provider,
+ skip_network))
+
+ def eip_cancel_setup(self):
+ """
+ Cancel the ongoing setup EIP (if any).
+ """
+ self._call_queue.put(("eip", "cancel_setup_eip", None))
+
+ def eip_start(self, restart=False):
+ """
+ Start the EIP service.
+
+ Signals:
+ backend_bad_call
+ eip_alien_openvpn_already_running
+ eip_connected
+ eip_connection_aborted
+ eip_network_unreachable
+ eip_no_pkexec_error
+ eip_no_polkit_agent_error
+ eip_no_tun_kext_error
+ eip_openvpn_already_running
+ eip_openvpn_not_found_error
+ eip_process_finished
+ eip_process_restart_ping
+ eip_process_restart_tls
+ eip_state_changed -> str
+ eip_status_changed -> tuple of str (download, upload)
+ eip_vpn_launcher_exception
+
+ :param restart: whether is is a restart.
+ :type restart: bool
+ """
+ self._call_queue.put(("eip", "start", None, restart))
+
+ def eip_stop(self, shutdown=False, restart=False, failed=False):
+ """
+ Stop the EIP service.
+
+ :param shutdown: whether this is the final shutdown.
+ :type shutdown: bool
+
+ :param restart: whether this is part of a restart.
+ :type restart: bool
+ """
+ self._call_queue.put(("eip", "stop", None, shutdown, restart))
+
+ def eip_terminate(self):
+ """
+ Terminate the EIP service, not necessarily in a nice way.
+ """
+ self._call_queue.put(("eip", "terminate", None))
+
+ def eip_get_gateways_list(self, domain):
+ """
+ Signal a list of gateways for the given provider.
+
+ :param domain: the domain to get the gateways.
+ :type domain: str
+
+ # TODO discuss how to document the expected result object received of
+ # the signal
+ :signal type: list of str
+
+ Signals:
+ eip_get_gateways_list -> list of unicode
+ eip_get_gateways_list_error
+ eip_uninitialized_provider
+ """
+ self._call_queue.put(("eip", "get_gateways_list", None, domain))
+
+ def eip_get_initialized_providers(self, domains):
+ """
+ Signal a list of the given domains and if they are initialized or not.
+
+ :param domains: the list of domains to check.
+ :type domain: list of str
+
+ Signals:
+ eip_get_initialized_providers -> list of tuple(unicode, bool)
+
+ """
+ self._call_queue.put(("eip", "get_initialized_providers",
+ None, domains))
+
+ def eip_can_start(self, domain):
+ """
+ Signal whether it has everything that is needed to run EIP or not
+
+ :param domain: the domain for the provider to check
+ :type domain: str
+
+ Signals:
+ eip_can_start
+ eip_cannot_start
+ """
+ self._call_queue.put(("eip", "can_start",
+ None, domain))
+
+ def eip_check_dns(self, domain):
+ """
+ Check if we can resolve the given domain name.
+
+ :param domain: the domain for the provider to check
+ :type domain: str
+
+ Signals:
+ eip_dns_ok
+ eip_dns_error
+ """
+ self._call_queue.put(("eip", "check_dns", None, domain))
+
+ def tear_fw_down(self):
+ """
+ Signal the need to tear the fw down.
+ """
+ self._call_queue.put(("eip", "tear_fw_down", None))
+
+ def user_login(self, provider, username, password):
+ """
+ Execute the whole authentication process for a user
+
+ :param domain: the domain where we need to authenticate.
+ :type domain: unicode
+ :param username: username for this session
+ :type username: str
+ :param password: password for this user
+ :type password: str
+
+ Signals:
+ srp_auth_error
+ srp_auth_ok
+ srp_auth_bad_user_or_password
+ srp_auth_server_error
+ srp_auth_connection_error
+ srp_auth_error
+ """
+ self._call_queue.put(("authenticate", "login", None, provider,
+ username, password))
+
+ def user_logout(self):
+ """
+ Log out the current session.
+
+ Signals:
+ srp_logout_ok
+ srp_logout_error
+ srp_not_logged_in_error
+ """
+ self._call_queue.put(("authenticate", "logout", None))
+
+ def user_cancel_login(self):
+ """
+ Cancel the ongoing login (if any).
+ """
+ self._call_queue.put(("authenticate", "cancel_login", None))
+
+ def user_change_password(self, current_password, new_password):
+ """
+ Change the user's password.
+
+ :param current_password: the current password of the user.
+ :type current_password: str
+ :param new_password: the new password for the user.
+ :type new_password: str
+
+ Signals:
+ srp_not_logged_in_error
+ srp_password_change_ok
+ srp_password_change_badpw
+ srp_password_change_error
+ """
+ self._call_queue.put(("authenticate", "change_password", None,
+ current_password, new_password))
+
+ def soledad_change_password(self, new_password):
+ """
+ Change the database's password.
+
+ :param new_password: the new password for the user.
+ :type new_password: unicode
+
+ Signals:
+ srp_not_logged_in_error
+ srp_password_change_ok
+ srp_password_change_badpw
+ srp_password_change_error
+ """
+ self._call_queue.put(("soledad", "change_password", None,
+ new_password))
+
+ def user_get_logged_in_status(self):
+ """
+ Signal if the user is currently logged in or not.
+
+ Signals:
+ srp_status_logged_in
+ srp_status_not_logged_in
+ """
+ self._call_queue.put(("authenticate", "get_logged_in_status", None))
+
+ def soledad_bootstrap(self, username, domain, password):
+ """
+ Bootstrap the soledad database.
+
+ :param username: the user name
+ :type username: unicode
+ :param domain: the domain that we are using.
+ :type domain: unicode
+ :param password: the password for the username
+ :type password: unicode
+
+ Signals:
+ soledad_bootstrap_finished
+ soledad_bootstrap_failed
+ soledad_invalid_auth_token
+ """
+ self._call_queue.put(("soledad", "bootstrap", None,
+ username, domain, password))
+
+ def soledad_load_offline(self, username, password, uuid):
+ """
+ Load the soledad database in offline mode.
+
+ :param username: full user id (user@provider)
+ :type username: str or unicode
+ :param password: the soledad passphrase
+ :type password: unicode
+ :param uuid: the user uuid
+ :type uuid: str or unicode
+
+ Signals:
+ """
+ self._call_queue.put(("soledad", "load_offline", None,
+ username, password, uuid))
+
+ def soledad_cancel_bootstrap(self):
+ """
+ Cancel the ongoing soledad bootstrapping process (if any).
+ """
+ self._call_queue.put(("soledad", "cancel_bootstrap", None))
+
+ def soledad_close(self):
+ """
+ Close soledad database.
+ """
+ self._call_queue.put(("soledad", "close", None))
+
+ def keymanager_list_keys(self):
+ """
+ Signal a list of public keys locally stored.
+
+ Signals:
+ keymanager_keys_list -> list
+ """
+ self._call_queue.put(("keymanager", "list_keys", None))
+
+ def keymanager_export_keys(self, username, filename):
+ """
+ Export the given username's keys to a file.
+
+ :param username: the username whos keys we need to export.
+ :type username: str
+ :param filename: the name of the file where we want to save the keys.
+ :type filename: str
+
+ Signals:
+ keymanager_export_ok
+ keymanager_export_error
+ """
+ self._call_queue.put(("keymanager", "export_keys", None,
+ username, filename))
+
+ def keymanager_get_key_details(self, username):
+ """
+ Signal the given username's key details.
+
+ :param username: the username whos keys we need to get details.
+ :type username: str
+
+ Signals:
+ keymanager_key_details
+ """
+ self._call_queue.put(("keymanager", "get_key_details", None, username))
+
+ def smtp_start_service(self, full_user_id, download_if_needed=False):
+ """
+ Start the SMTP service.
+
+ :param full_user_id: user id, in the form "user@provider"
+ :type full_user_id: str
+ :param download_if_needed: True if it should check for mtime
+ for the file
+ :type download_if_needed: bool
+ """
+ self._call_queue.put(("mail", "start_smtp_service", None,
+ full_user_id, download_if_needed))
+
+ def imap_start_service(self, full_user_id, offline=False):
+ """
+ Start the IMAP service.
+
+ :param full_user_id: user id, in the form "user@provider"
+ :type full_user_id: str
+ :param offline: whether imap should start in offline mode or not.
+ :type offline: bool
+ """
+ self._call_queue.put(("mail", "start_imap_service", None,
+ full_user_id, offline))
+
+ def smtp_stop_service(self):
+ """
+ Stop the SMTP service.
+ """
+ self._call_queue.put(("mail", "stop_smtp_service", None))
+
+ def imap_stop_service(self):
+ """
+ Stop imap service.
+
+ Signals:
+ imap_stopped
+ """
+ self._call_queue.put(("mail", "stop_imap_service", None))
diff --git a/src/leap/bitmask/backend/leapsignaler.py b/src/leap/bitmask/backend/leapsignaler.py
new file mode 100644
index 00000000..da8908fd
--- /dev/null
+++ b/src/leap/bitmask/backend/leapsignaler.py
@@ -0,0 +1,385 @@
+# -*- coding: utf-8 -*-
+# components.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/>.
+"""
+Signaler for Backend/Frontend communication.
+"""
+import logging
+
+from PySide import QtCore
+
+logger = logging.getLogger(__name__)
+
+
+class Signaler(QtCore.QObject):
+ """
+ Signaler object, handles converting string commands to Qt signals.
+
+ This is intended for the separation in frontend/backend, this will
+ live in the frontend.
+ """
+
+ ####################
+ # These will only exist in the frontend
+ # Signals for the ProviderBootstrapper
+ prov_name_resolution = QtCore.Signal(object)
+ prov_https_connection = QtCore.Signal(object)
+ prov_download_provider_info = QtCore.Signal(object)
+
+ prov_download_ca_cert = QtCore.Signal(object)
+ prov_check_ca_fingerprint = QtCore.Signal(object)
+ prov_check_api_certificate = QtCore.Signal(object)
+
+ prov_problem_with_provider = QtCore.Signal(object)
+
+ prov_unsupported_client = QtCore.Signal(object)
+ prov_unsupported_api = QtCore.Signal(object)
+
+ prov_get_all_services = QtCore.Signal(object)
+ prov_get_supported_services = QtCore.Signal(object)
+ prov_get_details = QtCore.Signal(object)
+ prov_get_pinned_providers = QtCore.Signal(object)
+
+ prov_cancelled_setup = QtCore.Signal(object)
+
+ # Signals for SRPRegister
+ srp_registration_finished = QtCore.Signal(object)
+ srp_registration_failed = QtCore.Signal(object)
+ srp_registration_taken = QtCore.Signal(object)
+
+ # Signals for EIP bootstrapping
+ eip_config_ready = QtCore.Signal(object)
+ eip_client_certificate_ready = QtCore.Signal(object)
+
+ eip_cancelled_setup = QtCore.Signal(object)
+
+ # Signals for SRPAuth
+ srp_auth_ok = QtCore.Signal(object)
+ srp_auth_error = QtCore.Signal(object)
+ srp_auth_server_error = QtCore.Signal(object)
+ srp_auth_connection_error = QtCore.Signal(object)
+ srp_auth_bad_user_or_password = QtCore.Signal(object)
+ srp_logout_ok = QtCore.Signal(object)
+ srp_logout_error = QtCore.Signal(object)
+ srp_password_change_ok = QtCore.Signal(object)
+ srp_password_change_error = QtCore.Signal(object)
+ srp_password_change_badpw = QtCore.Signal(object)
+ srp_not_logged_in_error = QtCore.Signal(object)
+ srp_status_logged_in = QtCore.Signal(object)
+ srp_status_not_logged_in = QtCore.Signal(object)
+
+ # Signals for EIP
+ eip_connected = QtCore.Signal(object)
+ eip_disconnected = QtCore.Signal(object)
+ eip_connection_died = QtCore.Signal(object)
+ eip_connection_aborted = QtCore.Signal(object)
+ eip_stopped = QtCore.Signal(object)
+
+ eip_dns_ok = QtCore.Signal(object)
+ eip_dns_error = QtCore.Signal(object)
+
+ # EIP problems
+ eip_no_polkit_agent_error = QtCore.Signal(object)
+ eip_no_tun_kext_error = QtCore.Signal(object)
+ eip_no_pkexec_error = QtCore.Signal(object)
+ eip_openvpn_not_found_error = QtCore.Signal(object)
+ eip_openvpn_already_running = QtCore.Signal(object)
+ eip_alien_openvpn_already_running = QtCore.Signal(object)
+ eip_vpn_launcher_exception = QtCore.Signal(object)
+
+ eip_get_gateways_list = QtCore.Signal(object)
+ eip_get_gateways_list_error = QtCore.Signal(object)
+ eip_uninitialized_provider = QtCore.Signal(object)
+ eip_get_initialized_providers = QtCore.Signal(object)
+
+ # signals from parsing openvpn output
+ eip_network_unreachable = QtCore.Signal(object)
+ eip_process_restart_tls = QtCore.Signal(object)
+ eip_process_restart_ping = QtCore.Signal(object)
+
+ # signals from vpnprocess.py
+ eip_state_changed = QtCore.Signal(dict)
+ eip_status_changed = QtCore.Signal(dict)
+ eip_process_finished = QtCore.Signal(int)
+ eip_tear_fw_down = QtCore.Signal(object)
+
+ # signals whether the needed files to start EIP exist or not
+ eip_can_start = QtCore.Signal(object)
+ eip_cannot_start = QtCore.Signal(object)
+
+ # Signals for Soledad
+ soledad_bootstrap_failed = QtCore.Signal(object)
+ soledad_bootstrap_finished = QtCore.Signal(object)
+ soledad_offline_failed = QtCore.Signal(object)
+ soledad_offline_finished = QtCore.Signal(object)
+ soledad_invalid_auth_token = QtCore.Signal(object)
+ soledad_cancelled_bootstrap = QtCore.Signal(object)
+ soledad_password_change_ok = QtCore.Signal(object)
+ soledad_password_change_error = QtCore.Signal(object)
+
+ # Keymanager signals
+ keymanager_export_ok = QtCore.Signal(object)
+ keymanager_export_error = QtCore.Signal(object)
+ keymanager_keys_list = QtCore.Signal(object)
+
+ keymanager_import_ioerror = QtCore.Signal(object)
+ keymanager_import_datamismatch = QtCore.Signal(object)
+ keymanager_import_missingkey = QtCore.Signal(object)
+ keymanager_import_addressmismatch = QtCore.Signal(object)
+ keymanager_import_ok = QtCore.Signal(object)
+
+ keymanager_key_details = QtCore.Signal(object)
+
+ # mail related signals
+ imap_stopped = QtCore.Signal(object)
+
+ # This signal is used to warn the backend user that is doing something
+ # wrong
+ backend_bad_call = QtCore.Signal(object)
+
+ ####################
+ # These will exist both in the backend AND the front end.
+ # The frontend might choose to not "interpret" all the signals
+ # from the backend, but the backend needs to have all the signals
+ # it's going to emit defined here
+ PROV_NAME_RESOLUTION_KEY = "prov_name_resolution"
+ PROV_HTTPS_CONNECTION_KEY = "prov_https_connection"
+ PROV_DOWNLOAD_PROVIDER_INFO_KEY = "prov_download_provider_info"
+ PROV_DOWNLOAD_CA_CERT_KEY = "prov_download_ca_cert"
+ PROV_CHECK_CA_FINGERPRINT_KEY = "prov_check_ca_fingerprint"
+ PROV_CHECK_API_CERTIFICATE_KEY = "prov_check_api_certificate"
+ PROV_PROBLEM_WITH_PROVIDER_KEY = "prov_problem_with_provider"
+ PROV_UNSUPPORTED_CLIENT = "prov_unsupported_client"
+ PROV_UNSUPPORTED_API = "prov_unsupported_api"
+ PROV_CANCELLED_SETUP = "prov_cancelled_setup"
+ PROV_GET_ALL_SERVICES = "prov_get_all_services"
+ PROV_GET_SUPPORTED_SERVICES = "prov_get_supported_services"
+ PROV_GET_DETAILS = "prov_get_details"
+ PROV_GET_PINNED_PROVIDERS = "prov_get_pinned_providers"
+
+ SRP_REGISTRATION_FINISHED = "srp_registration_finished"
+ SRP_REGISTRATION_FAILED = "srp_registration_failed"
+ SRP_REGISTRATION_TAKEN = "srp_registration_taken"
+ SRP_AUTH_OK = "srp_auth_ok"
+ SRP_AUTH_ERROR = "srp_auth_error"
+ SRP_AUTH_SERVER_ERROR = "srp_auth_server_error"
+ SRP_AUTH_CONNECTION_ERROR = "srp_auth_connection_error"
+ SRP_AUTH_BAD_USER_OR_PASSWORD = "srp_auth_bad_user_or_password"
+ SRP_LOGOUT_OK = "srp_logout_ok"
+ SRP_LOGOUT_ERROR = "srp_logout_error"
+ SRP_PASSWORD_CHANGE_OK = "srp_password_change_ok"
+ SRP_PASSWORD_CHANGE_ERROR = "srp_password_change_error"
+ SRP_PASSWORD_CHANGE_BADPW = "srp_password_change_badpw"
+ SRP_NOT_LOGGED_IN_ERROR = "srp_not_logged_in_error"
+ SRP_STATUS_LOGGED_IN = "srp_status_logged_in"
+ SRP_STATUS_NOT_LOGGED_IN = "srp_status_not_logged_in"
+
+ EIP_CONFIG_READY = "eip_config_ready"
+ EIP_CLIENT_CERTIFICATE_READY = "eip_client_certificate_ready"
+ EIP_CANCELLED_SETUP = "eip_cancelled_setup"
+
+ EIP_CONNECTED = "eip_connected"
+ EIP_DISCONNECTED = "eip_disconnected"
+ EIP_CONNECTION_DIED = "eip_connection_died"
+ EIP_CONNECTION_ABORTED = "eip_connection_aborted"
+ EIP_STOPPED = "eip_stopped"
+
+ EIP_NO_POLKIT_AGENT_ERROR = "eip_no_polkit_agent_error"
+ EIP_NO_TUN_KEXT_ERROR = "eip_no_tun_kext_error"
+ EIP_NO_PKEXEC_ERROR = "eip_no_pkexec_error"
+ EIP_OPENVPN_NOT_FOUND_ERROR = "eip_openvpn_not_found_error"
+ EIP_OPENVPN_ALREADY_RUNNING = "eip_openvpn_already_running"
+ EIP_ALIEN_OPENVPN_ALREADY_RUNNING = "eip_alien_openvpn_already_running"
+ EIP_VPN_LAUNCHER_EXCEPTION = "eip_vpn_launcher_exception"
+
+ EIP_GET_GATEWAYS_LIST = "eip_get_gateways_list"
+ EIP_GET_GATEWAYS_LIST_ERROR = "eip_get_gateways_list_error"
+ EIP_UNINITIALIZED_PROVIDER = "eip_uninitialized_provider"
+ EIP_GET_INITIALIZED_PROVIDERS = "eip_get_initialized_providers"
+
+ EIP_NETWORK_UNREACHABLE = "eip_network_unreachable"
+ EIP_PROCESS_RESTART_TLS = "eip_process_restart_tls"
+ EIP_PROCESS_RESTART_PING = "eip_process_restart_ping"
+
+ EIP_STATE_CHANGED = "eip_state_changed"
+ EIP_STATUS_CHANGED = "eip_status_changed"
+ EIP_PROCESS_FINISHED = "eip_process_finished"
+ EIP_TEAR_FW_DOWN = "eip_tear_fw_down"
+
+ EIP_CAN_START = "eip_can_start"
+ EIP_CANNOT_START = "eip_cannot_start"
+
+ EIP_DNS_OK = "eip_dns_ok"
+ EIP_DNS_ERROR = "eip_dns_error"
+
+ SOLEDAD_BOOTSTRAP_FAILED = "soledad_bootstrap_failed"
+ SOLEDAD_BOOTSTRAP_FINISHED = "soledad_bootstrap_finished"
+ SOLEDAD_OFFLINE_FAILED = "soledad_offline_failed"
+ SOLEDAD_OFFLINE_FINISHED = "soledad_offline_finished"
+ SOLEDAD_INVALID_AUTH_TOKEN = "soledad_invalid_auth_token"
+
+ SOLEDAD_PASSWORD_CHANGE_OK = "soledad_password_change_ok"
+ SOLEDAD_PASSWORD_CHANGE_ERROR = "soledad_password_change_error"
+
+ SOLEDAD_CANCELLED_BOOTSTRAP = "soledad_cancelled_bootstrap"
+
+ KEYMANAGER_EXPORT_OK = "keymanager_export_ok"
+ KEYMANAGER_EXPORT_ERROR = "keymanager_export_error"
+ KEYMANAGER_KEYS_LIST = "keymanager_keys_list"
+
+ KEYMANAGER_IMPORT_IOERROR = "keymanager_import_ioerror"
+ KEYMANAGER_IMPORT_DATAMISMATCH = "keymanager_import_datamismatch"
+ KEYMANAGER_IMPORT_MISSINGKEY = "keymanager_import_missingkey"
+ KEYMANAGER_IMPORT_ADDRESSMISMATCH = "keymanager_import_addressmismatch"
+ KEYMANAGER_IMPORT_OK = "keymanager_import_ok"
+ KEYMANAGER_KEY_DETAILS = "keymanager_key_details"
+
+ IMAP_STOPPED = "imap_stopped"
+
+ BACKEND_BAD_CALL = "backend_bad_call"
+
+ def __init__(self):
+ """
+ Constructor for the Signaler
+ """
+ QtCore.QObject.__init__(self)
+ self._signals = {}
+
+ signals = [
+ self.PROV_NAME_RESOLUTION_KEY,
+ self.PROV_HTTPS_CONNECTION_KEY,
+ self.PROV_DOWNLOAD_PROVIDER_INFO_KEY,
+ self.PROV_DOWNLOAD_CA_CERT_KEY,
+ self.PROV_CHECK_CA_FINGERPRINT_KEY,
+ self.PROV_CHECK_API_CERTIFICATE_KEY,
+ self.PROV_PROBLEM_WITH_PROVIDER_KEY,
+ self.PROV_UNSUPPORTED_CLIENT,
+ self.PROV_UNSUPPORTED_API,
+ self.PROV_CANCELLED_SETUP,
+ self.PROV_GET_ALL_SERVICES,
+ self.PROV_GET_SUPPORTED_SERVICES,
+ self.PROV_GET_DETAILS,
+ self.PROV_GET_PINNED_PROVIDERS,
+
+ self.SRP_REGISTRATION_FINISHED,
+ self.SRP_REGISTRATION_FAILED,
+ self.SRP_REGISTRATION_TAKEN,
+
+ self.EIP_CONFIG_READY,
+ self.EIP_CLIENT_CERTIFICATE_READY,
+ self.EIP_CANCELLED_SETUP,
+
+ self.EIP_CONNECTED,
+ self.EIP_DISCONNECTED,
+ self.EIP_CONNECTION_DIED,
+ self.EIP_CONNECTION_ABORTED,
+ self.EIP_STOPPED,
+
+ self.EIP_NO_POLKIT_AGENT_ERROR,
+ self.EIP_NO_TUN_KEXT_ERROR,
+ self.EIP_NO_PKEXEC_ERROR,
+ self.EIP_OPENVPN_NOT_FOUND_ERROR,
+ self.EIP_OPENVPN_ALREADY_RUNNING,
+ self.EIP_ALIEN_OPENVPN_ALREADY_RUNNING,
+ self.EIP_VPN_LAUNCHER_EXCEPTION,
+
+ self.EIP_GET_GATEWAYS_LIST,
+ self.EIP_GET_GATEWAYS_LIST_ERROR,
+ self.EIP_UNINITIALIZED_PROVIDER,
+ self.EIP_GET_INITIALIZED_PROVIDERS,
+
+ self.EIP_NETWORK_UNREACHABLE,
+ self.EIP_PROCESS_RESTART_TLS,
+ self.EIP_PROCESS_RESTART_PING,
+
+ self.EIP_STATE_CHANGED,
+ self.EIP_STATUS_CHANGED,
+ self.EIP_PROCESS_FINISHED,
+
+ self.EIP_CAN_START,
+ self.EIP_CANNOT_START,
+
+ self.EIP_DNS_OK,
+ self.EIP_DNS_ERROR,
+
+ self.SRP_AUTH_OK,
+ self.SRP_AUTH_ERROR,
+ self.SRP_AUTH_SERVER_ERROR,
+ self.SRP_AUTH_CONNECTION_ERROR,
+ self.SRP_AUTH_BAD_USER_OR_PASSWORD,
+ self.SRP_LOGOUT_OK,
+ self.SRP_LOGOUT_ERROR,
+ self.SRP_PASSWORD_CHANGE_OK,
+ self.SRP_PASSWORD_CHANGE_ERROR,
+ self.SRP_PASSWORD_CHANGE_BADPW,
+ self.SRP_NOT_LOGGED_IN_ERROR,
+ self.SRP_STATUS_LOGGED_IN,
+ self.SRP_STATUS_NOT_LOGGED_IN,
+
+ self.SOLEDAD_BOOTSTRAP_FAILED,
+ self.SOLEDAD_BOOTSTRAP_FINISHED,
+ self.SOLEDAD_OFFLINE_FAILED,
+ self.SOLEDAD_OFFLINE_FINISHED,
+ self.SOLEDAD_INVALID_AUTH_TOKEN,
+ self.SOLEDAD_CANCELLED_BOOTSTRAP,
+
+ self.SOLEDAD_PASSWORD_CHANGE_OK,
+ self.SOLEDAD_PASSWORD_CHANGE_ERROR,
+
+ self.KEYMANAGER_EXPORT_OK,
+ self.KEYMANAGER_EXPORT_ERROR,
+ self.KEYMANAGER_KEYS_LIST,
+
+ self.KEYMANAGER_IMPORT_IOERROR,
+ self.KEYMANAGER_IMPORT_DATAMISMATCH,
+ self.KEYMANAGER_IMPORT_MISSINGKEY,
+ self.KEYMANAGER_IMPORT_ADDRESSMISMATCH,
+ self.KEYMANAGER_IMPORT_OK,
+ self.KEYMANAGER_KEY_DETAILS,
+
+ self.IMAP_STOPPED,
+
+ self.BACKEND_BAD_CALL,
+ ]
+
+ for sig in signals:
+ self._signals[sig] = getattr(self, sig)
+
+ def signal(self, key, data=None):
+ """
+ Emits a Qt signal based on the key provided, with the data if provided.
+
+ :param key: string identifying the signal to emit
+ :type key: str
+ :param data: object to send with the data
+ :type data: object
+
+ NOTE: The data object will be a serialized str in the backend,
+ and an unserialized object in the frontend, but for now we
+ just care about objects.
+ """
+ # Right now it emits Qt signals. The backend version of this
+ # will do zmq.send_multipart, and the frontend version will be
+ # similar to this
+
+ # for some reason emitting 'None' gives a segmentation fault.
+ if data is None:
+ data = ''
+
+ try:
+ self._signals[key].emit(data)
+ except KeyError:
+ logger.error("Unknown key for signal %s!" % (key,))