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authorRuben Pollan <meskio@sindominio.net>2015-02-14 17:52:27 -0600
committerRuben Pollan <meskio@sindominio.net>2015-02-18 11:19:03 -0600
commit82652e174b4f38a29ce488421eb6c0067d0c657f (patch)
tree59c012a118a61611e4486759645cebc1715b7a0e /src/leap/bitmask/services/soledad
parent62a64e7abff3e988f7cd55f04121310a40017784 (diff)
Do the soledad sync the twisted way
This closes: #6658 and #6691
Diffstat (limited to 'src/leap/bitmask/services/soledad')
-rw-r--r--src/leap/bitmask/services/soledad/soledadbootstrapper.py376
1 files changed, 172 insertions, 204 deletions
diff --git a/src/leap/bitmask/services/soledad/soledadbootstrapper.py b/src/leap/bitmask/services/soledad/soledadbootstrapper.py
index e8946fa4..f079b0cd 100644
--- a/src/leap/bitmask/services/soledad/soledadbootstrapper.py
+++ b/src/leap/bitmask/services/soledad/soledadbootstrapper.py
@@ -21,14 +21,12 @@ import logging
import os
import socket
import sys
-import time
from ssl import SSLError
from sqlite3 import ProgrammingError as sqlite_ProgrammingError
from u1db import errors as u1db_errors
-from twisted.internet import threads, defer
-import zope.proxy
+from twisted.internet import defer, reactor
from zope.proxy import sameProxiedObjects
from pysqlcipher.dbapi2 import ProgrammingError as sqlcipher_ProgrammingError
@@ -60,9 +58,6 @@ They should not be needed after we allow a null remote initialization in the
soledad client, and a switch to remote sync-able mode during runtime.
"""
-# TODO these exceptions could be moved to soledad itself
-# after settling this down.
-
class SoledadSyncError(Exception):
message = "Error while syncing Soledad"
@@ -109,10 +104,6 @@ class SoledadBootstrapper(AbstractBootstrapper):
PUBKEY_KEY = "user[public_key]"
MAX_INIT_RETRIES = 10
- MAX_SYNC_RETRIES = 10
- WAIT_MAX_SECONDS = 600
- # WAIT_STEP_SECONDS = 1
- WAIT_STEP_SECONDS = 5
def __init__(self, signaler=None):
AbstractBootstrapper.__init__(self, signaler)
@@ -125,30 +116,24 @@ class SoledadBootstrapper(AbstractBootstrapper):
self._download_if_needed = False
self._user = ""
- self._password = ""
+ self._password = u""
self._address = ""
self._uuid = ""
self._srpauth = None
- self._soledad = zope.proxy.ProxyBase(None)
- self._keymanager = zope.proxy.ProxyBase(None)
-
- @property
- def keymanager(self):
- return self._keymanager
-
- @property
- def soledad(self):
- return self._soledad
+ self._soledad = None
+ self._keymanager = None
@property
def srpauth(self):
if flags.OFFLINE is True:
return None
- leap_assert(self._provider_config is not None,
- "We need a provider config")
- return SRPAuth(self._provider_config)
+ if self._srpauth is None:
+ leap_assert(self._provider_config is not None,
+ "We need a provider config")
+ self._srpauth = SRPAuth(self._provider_config)
+ return self._srpauth
# initialization
@@ -166,18 +151,19 @@ class SoledadBootstrapper(AbstractBootstrapper):
self._address = username
self._password = password
self._uuid = uuid
- try:
- d = self.load_and_sync_soledad(uuid, offline=True)
- d.addCallback(
- lambda _: self._signaler.signal(
- self._signaler.soledad_offline_finished))
- return d
- except Exception as e:
- # XXX convert exception into failure.trap
+
+ def error(failure):
# TODO: we should handle more specific exceptions in here
- logger.exception(e)
+ logger.exception(failure.value)
self._signaler.signal(self._signaler.soledad_offline_failed)
+ d = self.load_and_sync_soledad(uuid, offline=True)
+ d.addCallback(
+ lambda _: self._signaler.signal(
+ self._signaler.soledad_offline_finished))
+ d.addErrback(error)
+ return d
+
def _get_soledad_local_params(self, uuid, offline=False):
"""
Return the locals parameters needed for the soledad initialization.
@@ -211,23 +197,17 @@ class SoledadBootstrapper(AbstractBootstrapper):
:return: server_url, cert_file
:rtype: tuple
"""
- if uuid is None:
- uuid = self.srpauth.get_uuid()
-
if offline is True:
server_url = "http://localhost:9999/"
cert_file = ""
else:
+ if uuid is None:
+ uuid = self.srpauth.get_uuid()
server_url = self._pick_server(uuid)
cert_file = self._provider_config.get_ca_cert_path()
return server_url, cert_file
- def _soledad_sync_errback(self, failure):
- failure.trap(InvalidAuthTokenError)
- # in the case of an invalid token we have already turned off mail and
- # warned the user in _do_soledad_sync()
-
def _do_soledad_init(self, uuid, secrets_path, local_db_path,
server_url, cert_file, token, syncable):
"""
@@ -268,16 +248,18 @@ class SoledadBootstrapper(AbstractBootstrapper):
logger.exception(exc)
raise SoledadInitError()
- def load_and_sync_soledad(self, uuid=None, offline=False):
+ def load_and_sync_soledad(self, uuid=u"", offline=False):
"""
Once everthing is in the right place, we instantiate and sync
Soledad
:param uuid: the uuid of the user, used in offline mode.
- :type uuid: unicode, or None.
+ :type uuid: unicode.
:param offline: whether to instantiate soledad for offline use.
:type offline: bool
+ :return: A Deferred which fires when soledad is sync, or which fails
+ with SoledadInitError or SoledadSyncError
:rtype: defer.Deferred
"""
local_param = self._get_soledad_local_params(uuid, offline)
@@ -291,54 +273,46 @@ class SoledadBootstrapper(AbstractBootstrapper):
uuid, secrets_path, local_db_path, cert_file, token)
else:
- # We assume online operation from here on.
- # XXX split in subfunction
- syncable = True
- try:
- self._do_soledad_init(uuid, secrets_path, local_db_path,
- server_url, cert_file, token, syncable)
- except SoledadInitError:
- # re-raise the exceptions from try_init,
- # we're currently handling the retries from the
- # soledad-launcher in the gui.
- raise
+ return self._load_soledad_online(uuid, secrets_path, local_db_path,
+ server_url, cert_file, token)
- leap_assert(not sameProxiedObjects(self._soledad, None),
- "Null soledad, error while initializing")
+ def _load_soledad_online(self, uuid, secrets_path, local_db_path,
+ server_url, cert_file, token):
+ syncable = True
+ try:
+ self._do_soledad_init(uuid, secrets_path, local_db_path,
+ server_url, cert_file, token, syncable)
+ except SoledadInitError as e:
+ # re-raise the exceptions from try_init,
+ # we're currently handling the retries from the
+ # soledad-launcher in the gui.
+ return defer.fail(e)
- address = make_address(
- self._user, self._provider_config.get_domain())
+ leap_assert(not sameProxiedObjects(self._soledad, None),
+ "Null soledad, error while initializing")
- def key_not_found(failure):
- if failure.check(KeyNotFound):
- logger.debug("Key not found. Generating key for %s" %
- (address,))
- self._do_soledad_sync()
- else:
- return failure
+ address = make_address(
+ self._user, self._provider_config.get_domain())
+ syncer = Syncer(self._soledad, self._signaler)
- d = self._init_keymanager(address, token)
- d.addCallback(
- lambda _: self._keymanager.get_key(
- address, openpgp.OpenPGPKey,
- private=True, fetch_remote=False))
- d.addCallbacks(
- # XXX WTF --- FIXME remove this call to thread, soledad already
- # does the sync in its own threadpool. -- kali
- lambda _: threads.deferToThread(self._do_soledad_sync),
- key_not_found)
- d.addErrback(self._soledad_sync_errback)
- return d
+ d = self._init_keymanager(address, token)
+ d.addCallback(lambda _: syncer.sync())
+ d.addErrback(self._soledad_sync_errback)
+ return d
def _load_soledad_nosync(self, uuid, secrets_path, local_db_path,
cert_file, token):
-
syncable = False
self._do_soledad_init(uuid, secrets_path, local_db_path,
"", cert_file, token, syncable)
d = self._init_keymanager(self._address, token)
return d
+ def _soledad_sync_errback(self, failure):
+ failure.trap(InvalidAuthTokenError)
+ # in the case of an invalid token we have already turned off mail and
+ # warned the user
+
def _pick_server(self, uuid):
"""
Choose a soledad server to sync against.
@@ -363,52 +337,6 @@ class SoledadBootstrapper(AbstractBootstrapper):
logger.debug("Using soledad server url: %s" % (server_url,))
return server_url
- def _do_soledad_sync(self):
- """
- Do several retries to get an initial soledad sync.
- """
- # and now, let's sync
- sync_tries = self.MAX_SYNC_RETRIES
- step = self.WAIT_STEP_SECONDS
- max_wait = self.WAIT_MAX_SECONDS
- while sync_tries > 0:
- wait = 0
- try:
- logger.debug("Trying to sync soledad....")
- self._try_soledad_sync()
- while self.soledad.syncing:
- time.sleep(step)
- wait += step
- if wait >= max_wait:
- raise SoledadSyncError("timeout!")
- logger.debug("Soledad has been synced!")
- # so long, and thanks for all the fish
- return
- except SoledadSyncError:
- # maybe it's my connection, but I'm getting
- # ssl handshake timeouts and read errors quite often.
- # A particularly big sync is a disaster.
- # This deserves further investigation, maybe the
- # retry strategy can be pushed to u1db, or at least
- # it's something worthy to talk about with the
- # ubuntu folks.
- sync_tries += 1
- msg = "Sync failed, retrying... (retry {0} of {1})".format(
- sync_tries, self.MAX_SYNC_RETRIES)
- logger.warning(msg)
- continue
- except InvalidAuthTokenError:
- self._signaler.signal(
- self._signaler.soledad_invalid_auth_token)
- raise
- except Exception as e:
- # XXX release syncing lock
- logger.exception("Unhandled error while syncing "
- "soledad: %r" % (e,))
- break
-
- raise SoledadSyncError()
-
def _try_soledad_init(self, uuid, secrets_path, local_db_path,
server_url, cert_file, auth_token, syncable):
"""
@@ -462,34 +390,6 @@ class SoledadBootstrapper(AbstractBootstrapper):
"Soledad: %r" % (exc,))
raise
- def _try_soledad_sync(self):
- """
- Try to sync soledad.
- Raises SoledadSyncError if not successful.
- """
- try:
- logger.debug("BOOTSTRAPPER: trying to sync Soledad....")
- # pass defer_decryption=False to get inline decryption
- # for debugging.
- self._soledad.sync(defer_decryption=True)
- except SSLError as exc:
- logger.error("%r" % (exc,))
- raise SoledadSyncError("Failed to sync soledad")
- except u1db_errors.InvalidGeneration as exc:
- logger.error("%r" % (exc,))
- raise SoledadSyncError("u1db: InvalidGeneration")
- except (sqlite_ProgrammingError, sqlcipher_ProgrammingError) as e:
- logger.exception("%r" % (e,))
- raise
- except InvalidAuthTokenError:
- # token is invalid, probably expired
- logger.error('Invalid auth token while trying to sync Soledad')
- raise
- except Exception as exc:
- logger.exception("Unhandled error while syncing "
- "soledad: %r" % (exc,))
- raise SoledadSyncError("Failed to sync soledad")
-
def _download_config(self):
"""
Download the Soledad config for the given provider
@@ -545,11 +445,10 @@ class SoledadBootstrapper(AbstractBootstrapper):
:type token: str
:rtype: Deferred
"""
- srp_auth = self.srpauth
logger.debug('initializing keymanager...')
- if flags.OFFLINE is True:
- args = (address, "https://localhost", self._soledad)
+ if flags.OFFLINE:
+ nickserver_uri = "https://localhost"
kwargs = {
"ca_cert_path": "",
"api_uri": "",
@@ -558,27 +457,18 @@ class SoledadBootstrapper(AbstractBootstrapper):
"gpgbinary": self._get_gpg_bin_path()
}
else:
- args = (
- address,
- "https://nicknym.%s:6425" % (
- self._provider_config.get_domain(),),
- self._soledad
- )
+ nickserver_uri = "https://nicknym.%s:6425" % (
+ self._provider_config.get_domain(),)
kwargs = {
"token": token,
"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_uuid(),
+ "uid": self.srpauth.get_uuid(),
"gpgbinary": self._get_gpg_bin_path()
}
- try:
- self._keymanager = KeyManager(*args, **kwargs)
- except KeyNotFound:
- logger.debug('key for %s not found.' % address)
- except Exception as exc:
- logger.exception(exc)
- raise
+ self._keymanager = KeyManager(address, nickserver_uri, self._soledad,
+ **kwargs)
if flags.OFFLINE is False:
# make sure key is in server
@@ -586,8 +476,9 @@ class SoledadBootstrapper(AbstractBootstrapper):
def send_errback(failure):
if failure.check(KeyNotFound):
- logger.debug('No key found for %s, will generate soon.'
- % address)
+ logger.debug(
+ 'No key found for %s, it might be because soledad not '
+ 'synced yet or it will generate it soon.' % address)
else:
logger.error("Error sending key to server.")
logger.exception(failure.value)
@@ -615,14 +506,12 @@ class SoledadBootstrapper(AbstractBootstrapper):
logger.debug("Retrieving key for %s" % (address,))
def if_not_found_generate(failure):
- if failure.check(KeyNotFound):
- logger.debug("Key not found. Generating key for %s"
- % (address,))
- d = self._keymanager.gen_key(openpgp.OpenPGPKey)
- d.addCallbacks(send_key, log_key_error("generating"))
- return d
- else:
- return failure
+ failure.trap(KeyNotFound)
+ logger.debug("Key not found. Generating key for %s"
+ % (address,))
+ d = self._keymanager.gen_key(openpgp.OpenPGPKey)
+ d.addCallbacks(send_key, log_key_error("generating"))
+ return d
def send_key(_):
d = self._keymanager.send_key(openpgp.OpenPGPKey)
@@ -657,6 +546,8 @@ class SoledadBootstrapper(AbstractBootstrapper):
files if the have changed since the
time it was previously downloaded.
:type download_if_needed: bool
+
+ :return: Deferred
"""
leap_assert_type(provider_config, ProviderConfig)
@@ -666,36 +557,113 @@ class SoledadBootstrapper(AbstractBootstrapper):
self._user = user
self._password = password
- is_offline = flags.OFFLINE
-
- if is_offline:
+ if flags.OFFLINE:
signal_finished = self._signaler.soledad_offline_finished
- signal_failed = self._signaler.soledad_offline_failed
- else:
- signal_finished = self._signaler.soledad_bootstrap_finished
- signal_failed = self._signaler.soledad_bootstrap_failed
+ self._signaler.signal(signal_finished)
+ return defer.succeed(True)
+
+ signal_finished = self._signaler.soledad_bootstrap_finished
+ signal_failed = self._signaler.soledad_bootstrap_failed
try:
- if not is_offline:
- # XXX FIXME make this async too! (use txrequests)
- # Also, why the fuck would we want to download it *every time*?
- # We should be fine by using last-time config, or at least
- # trying it.
- self._download_config()
-
- # soledad config is ok, let's proceed to load and sync soledad
- uuid = self.srpauth.get_uuid()
- self.load_and_sync_soledad(uuid)
-
- d = self._gen_key()
- d.addCallback(lambda _: self._signaler.signal(signal_finished))
- return d
- else:
- self._signaler.signal(signal_finished)
- return defer.succeed(True)
+ # XXX FIXME make this async too! (use txrequests)
+ # Also, why the fuck would we want to download it *every time*?
+ # We should be fine by using last-time config, or at least
+ # trying it.
+ self._download_config()
+ uuid = self.srpauth.get_uuid()
except Exception as e:
# TODO: we should handle more specific exceptions in here
self._soledad = None
self._keymanager = None
- logger.exception("Error while bootstrapping Soledad: %r" % (e, ))
+ logger.exception("Error while bootstrapping Soledad: %r" % (e,))
self._signaler.signal(signal_failed)
+ return defer.succeed(None)
+
+ # soledad config is ok, let's proceed to load and sync soledad
+ d = self.load_and_sync_soledad(uuid)
+ d.addCallback(lambda _: self._gen_key())
+ d.addCallback(lambda _: self._signaler.signal(signal_finished))
+ return d
+
+
+class Syncer(object):
+ """
+ Takes care of retries, timeouts and other issues while syncing
+ """
+ # XXX: the timeout and proably all the stuff here should be moved to
+ # soledad
+
+ MAX_SYNC_RETRIES = 10
+ WAIT_MAX_SECONDS = 600
+
+ def __init__(self, soledad, signaler):
+ self._tries = 0
+ self._soledad = soledad
+ self._signaler = signaler
+
+ def sync(self):
+ self._callback_deferred = defer.Deferred()
+ self._try_sync()
+ return self._callback_deferred
+
+ def _try_sync(self):
+ logger.debug("BOOTSTRAPPER: trying to self Soledad....")
+ # pass defer_decryption=False to get inline decryption
+ # for debugging.
+ self._sync_deferred = self._soledad.sync(defer_decryption=True)
+ self._sync_deferred.addCallbacks(self._success, self._error)
+ reactor.callLater(self.WAIT_MAX_SECONDS, self._timeout)
+
+ def _success(self, result):
+ logger.debug("Soledad has been synced!")
+ self._callback_deferred.callback(result)
+ # so long, and thanks for all the fish
+
+ def _error(self, failure):
+ if failure.check(InvalidAuthTokenError):
+ logger.error('Invalid auth token while trying to self Soledad')
+ self._signaler.signal(
+ self._signaler.soledad_invalid_auth_token)
+ self._callback_deferred.fail(failure)
+ elif failure.check(sqlite_ProgrammingError,
+ sqlcipher_ProgrammingError):
+ logger.exception("%r" % (failure.value,))
+ self._callback_deferred.fail(failure)
+ elif failure.check(SSLError):
+ logger.error("%r" % (failure.value,))
+ self._retry()
+ elif failure.check(u1db_errors.InvalidGeneration):
+ logger.error("%r" % (failure.value,))
+ self._retry()
+ else:
+ logger.exception("Unhandled error while syncing "
+ "soledad: %r" % (failure.value,))
+ self._retry()
+
+ def _timeout(self):
+ if not self._soledad.syncing:
+ # timeout only if is still syncing
+ return
+
+ # maybe it's my connection, but I'm getting
+ # ssl handshake timeouts and read errors quite often.
+ # A particularly big sync is a disaster.
+ # This deserves further investigation, maybe the
+ # retry strategy can be pushed to u1db, or at least
+ # it's something worthy to talk about with the
+ # ubuntu folks.
+ self._sync_deferred.cancel()
+ self._retry()
+
+ def _retry(self):
+ self._tries += 1
+ if self._tries > self.MAX_SYNC_RETRIES:
+ msg = "Sync failed, retrying... (retry {0} of {1})".format(
+ self._tries, self.MAX_SYNC_RETRIES)
+ logger.warning(msg)
+ self._try_sync()
+ else:
+ logger.error("Sync failed {0} times".format(self._tries))
+ self._callback_deferred.fail(
+ SoledadSyncError("Too many retries"))