def writeError(self, *args, **options):
"""
Display an error with its backtrace. Usage:
self.writeError(context, err)
or
self.writeError(err)
"""
if not isinstance(args[0], (Failure, Exception)):
# logger.writeError(context, err, ...): have a context
context = args[0]
error = args[1]
args = args[2:]
else:
# logger.writeError(err, ...): no context
context = None
error = args[0]
args = args[1:]
if isinstance(error, Failure):
options['traceback'] = error.getBriefTraceback()
error = error.value
if context and (not context.component):
logger = self._with_context
logger.context = context
try:
logger.writeError(error, *args, **options)
finally:
logger.context = None
else:
CommonLogger.writeError(self, error, *args, **options)
def __init__(self, gui, client):
dict.__init__(self)
Logger.__init__(self)
self.client = client
self.gui = gui
self.getConfig()
self.update_callbacks = [] # def callback(config): ...
def __init__(self, client):
Logger.__init__(self, "async_client")
QThread.__init__(self)
self._run_mutex = QMutex()
self._stop_mutex = QMutex()
self._queue_mutex = QMutex()
self._queue_event = Event()
self._run_event = Event()
self.client = client
self.queue = set()
self.cache = {}
def __init__(self, deserialize_fn, cfg_name, set_fn_name, parent=None):
QObject.__init__(self, parent)
#name of a model -> model
self.models = {}
if isinstance(parent, Logger):
self.logger = parent
else:
self.logger = Logger(cfg_name)
self.cfg = None
self.validation_callbacks = []
self.passed_args = []
self.effective_callbacks = []
self.__forgettables = {}
self.backup = None
cls = self.__class__
setattr(
cls,
cfg_name,
property(fget=cls.getCfg, fset=cls.setCfg)
)
setattr(
self,
set_fn_name,
self.setCfg
)
setattr(
self.__class__,
'deserialize',
staticmethod(deserialize_fn)
)
def __init__(self):
ClientSSLConfig.__init__(self)
self.logger = Logger("ssl")
self.temp_ignored_errors = defaultdict(set)
self.loadOptions()
class QtSSLConfig(ClientSSLConfig):
def __init__(self):
ClientSSLConfig.__init__(self)
self.logger = Logger("ssl")
self.temp_ignored_errors = defaultdict(set)
self.loadOptions()
# FIXME: call self.check()
def _setUnicode(self, settings, key, value):
if value is None:
value = u''
settings.setUnicode(key, value)
def saveOptions(self):
settings = UserSettings(SETTINGS_APP_NAME)
settings.setInt('fqdn_check', self.fqdn_check)
settings.setInt('check_peer', self.check)
settings.setInt('send_cert', self.send_cert)
## option 'check' removed in 4.1.0 : disable ssl authentication and ssl checks
# when it's disabled for backward compatibily
# settings.setInt('check', self.enable_ssl_checks)
settings.setInt('check', True)
self._setUnicode(settings, 'cert', self.cert)
self._setUnicode(settings, 'key', self.key)
self._setUnicode(settings, 'ca', self.ca)
self._setUnicode(settings, 'crl', self.crl)
errors = self.generateIgnoredErrors(self.ignored_errors)
if errors:
settings.setStringList('ignored_errors', errors)
def loadOptions(self):
settings = UserSettings(SETTINGS_APP_NAME)
self.check = settings.getInt('check_peer', self.check)
self.fqdn_check = settings.getInt('fqdn_check', self.fqdn_check)
self.send_cert = settings.getInt('send_cert', self.send_cert)
## option 'check' removed in 4.1.0 : disable ssl authentication and ssl checks
# when it's disabled for backward compatibily
# self.enable_ssl_checks = settings.getInt('check', self.enable_ssl_checks)
if settings.getInt('check', True) == False:
self.send_cert = False
self.check = False
for name in ('cert', 'key', 'ca', 'crl'):
value = getattr(self, name)
new_value = settings.getUnicode(name, value)
if new_value:
if exists(new_value):
setattr(self, name, new_value)
else:
self.logger.info("Ignore %s=%s (missing file)" % (name, new_value))
else:
setattr(self, name, u'')
self.ignored_errors = self.parseIgnoredErrors(settings.getStringList('ignored_errors'))
def parseIgnoredErrors(self, lst):
# Parse a list of errors to ignore during verification
# The list is alist of fingerprint followed by the error to ignore:
# lst = [ fingerprint 1, error ignored for fingerprint 1, fingerprint 1, other error ... ]
ignored_errors = defaultdict(set)
if lst is None:
return ignored_errors
while len(lst) > 1:
fingerprint = lst[0]
err_no = int(lst[1])
ignored_errors[fingerprint].add(err_no)
del lst[0:2]
return ignored_errors
def generateIgnoredErrors(self, ignored_errors):
lst = []
for fingerprint in ignored_errors:
for err_no in ignored_errors[fingerprint]:
lst.append(fingerprint)
lst.append(str(err_no))
return lst
def _user_verify(self, error):
# temporary implementation using a QMessageBox
# XXX in the future, we should create a dedicated UI
# Check wether we should ignore this error
err_no = error.number
fingerprint = error.getFingerprint()
if (fingerprint in self.ignored_errors) \
and (err_no in self.ignored_errors[fingerprint]):
return 1
if (fingerprint in self.temp_ignored_errors) \
and (err_no in self.temp_ignored_errors[fingerprint]):
return 1
msgBox = QMessageBox()
msgBox.setIcon(QMessageBox.Critical)
msgBox.setTextFormat(Qt.RichText)
message = u"<b>%s!</b>" % error.getMessage()
msgBox.setText( tr('The "%s" certificate is invalid: %s') % (error.getSubject(), message))
msgBox.setInformativeText( tr("Do you want to accept the following certificate?") )
msgBox.setDetailedText(error.getCertText())
msgBox.setStandardButtons(QMessageBox.Ok | QMessageBox.Cancel)
msgBox.addButton( tr("For this session only"), QMessageBox.AcceptRole )
msgBox.setDefaultButton(QMessageBox.Cancel)
ret = msgBox.exec_()
if ret == QMessageBox.Ok:
self.ignored_errors[fingerprint].add(err_no)
self.saveOptions()
elif ret == QMessageBox.AcceptRole:
self.temp_ignored_errors[fingerprint].add(err_no)
if ret in (QMessageBox.Ok, QMessageBox.AcceptRole):
return 1
else:
return 0
def user_verify(self, error):
try:
return self._user_verify(error)
except Exception, err:
self.logger.writeError(err, tr("Certificate validation error"))
return 0
class QConfigObject(QObject):
"""
Singleton object.
Holds a *cfg, and notices you with a 'modified' SIGNAL
The reason of this object is that it is difficult to find a frontend module,
listen for its modifications and react accordingly.
The singleton reflects the user seing a unique data set, and this can be refactored
later of we need several ufwi_conf interfaces talking to several edenwalls.
"""
_instance = None
def __init__(self, deserialize_fn, cfg_name, set_fn_name, parent=None):
QObject.__init__(self, parent)
#name of a model -> model
self.models = {}
if isinstance(parent, Logger):
self.logger = parent
else:
self.logger = Logger(cfg_name)
self.cfg = None
self.validation_callbacks = []
self.passed_args = []
self.effective_callbacks = []
self.__forgettables = {}
self.backup = None
cls = self.__class__
setattr(
cls,
cfg_name,
property(fget=cls.getCfg, fset=cls.setCfg)
)
setattr(
self,
set_fn_name,
self.setCfg
)
setattr(
self.__class__,
'deserialize',
staticmethod(deserialize_fn)
)
def resetModels(self):
"""
A method that should be subclassed
"""
pass
def hasConfig(self):
"""
return if object have a config
"""
return self.cfg != None
@classmethod
def getInstance(cls):
if cls._instance is None:
cls._instance = cls()
return cls._instance
def registerCallbacks(self, canHandleModification, handleModification, attach=None):
self.validation_callbacks.append(canHandleModification)
self.effective_callbacks.append(handleModification)
if attach is not None:
self.connect(attach, SIGNAL('destroyed(QObject)'), self.forget)
self.__forgettables[attach] = canHandleModification, handleModification
def forget(self, qobject):
callbacks = self.__forgettables.get(qobject)
if callbacks is None:
return
canHandleModification, handleModification = callbacks
del self.__forgettables[qobject]
self.validation_callbacks.remove(canHandleModification)
self.effective_callbacks.remove(handleModification)
def pre_modify(self):
self.backup = self.cfg.serialize()
def revert(self):
assert self.backup is not None, 'Did you call pre_modify() before?'
self._importSerialized(self.backup)
def post_modify(self):
assert self.cfg is not None, \
"Do not call this function unless you really modified cfg. I which case you should have done a setCfg(cfg) once before"
self.resetModels()
if self._modificationAuthorized():
self._propagate()
# self.pre_modify()
valid = True
else:
self.revert()
self.emit(SIGNAL('cancelled'))
valid = False
self.passed_args = []
return valid
def _importSerialized(self, serialized):
try:
self.cfg = self.deserialize(serialized)
except Exception, err:
self.logger.writeError(err)
self.resetModels()
def __init__(self, *args, **kw):
CommonLogger.__init__(self, *args, **kw)
self._with_context = ContextLoggerChild(None, self)
def __init__(self):
ClientSSLConfig.__init__(self)
Logger.__init__(self, "ssl")
