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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see
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# <http://www.gnu.org/licenses/>.
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# Contact the authors at <mandos@recompile.se>.
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from __future__ import (division, absolute_import, print_function,
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from future_builtins import *
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domain = 'se.recompile'
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server_interface = domain + '.Mandos'
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client_interface = domain + '.Mandos.Client'
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# Always run in monochrome mode
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urwid.curses_display.curses.has_colors = lambda : False
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# Urwid doesn't support blinking, but we want it. Since we have no
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# use for underline on its own, we make underline also always blink.
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urwid.curses_display.curses.A_UNDERLINE |= (
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urwid.curses_display.curses.A_BLINK)
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def isoformat_to_datetime(iso):
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"Parse an ISO 8601 date string to a datetime.datetime()"
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properties and calls a hook function when any of them are
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def __init__(self, proxy_object=None, properties=None, **kwargs):
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def __init__(self, proxy_object=None, *args, **kwargs):
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self.proxy = proxy_object # Mandos Client proxy object
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self.properties = dict() if properties is None else properties
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self.properties = dict()
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self.property_changed_match = (
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self.proxy.connect_to_signal("PropertyChanged",
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self._property_changed,
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self.property_changed,
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if properties is None:
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self.properties.update(
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self.proxy.GetAll(client_interface,
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= dbus.PROPERTIES_IFACE))
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super(MandosClientPropertyCache, self).__init__(**kwargs)
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def _property_changed(self, property, value):
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"""Helper which takes positional arguments"""
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return self.property_changed(property=property, value=value)
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self.properties.update(
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self.proxy.GetAll(client_interface,
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dbus_interface = dbus.PROPERTIES_IFACE))
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#XXX This breaks good super behaviour
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# super(MandosClientPropertyCache, self).__init__(
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def property_changed(self, property=None, value=None):
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"""This is called whenever we get a PropertyChanged signal
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self.logger = logger
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self._update_timer_callback_tag = None
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self._update_timer_callback_lock = 0
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# The widget shown normally
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self._text_widget = urwid.Text("")
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# The widget shown when we have focus
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self._focus_text_widget = urwid.Text("")
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super(MandosClientWidget, self).__init__(**kwargs)
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super(MandosClientWidget, self).__init__(
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update_hook=update_hook, delete_hook=delete_hook,
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self.opened = False
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last_checked_ok = isoformat_to_datetime(self.properties
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if self.properties ["LastCheckerStatus"] != 0:
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self.using_timer(True)
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if self.need_approval:
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self.using_timer(True)
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self.match_objects = (
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self.proxy.connect_to_signal("CheckerCompleted",
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self.checker_completed,
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client_interface,
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byte_arrays=True))
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#self.logger('Created client {0}'
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# .format(self.properties["Name"]))
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#self.logger('Created client %s' % (self.properties["Name"]))
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def property_changed(self, property=None, value=None):
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super(self, MandosClientWidget).property_changed(property,
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if property == "ApprovalPending":
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using_timer(bool(value))
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if property == "LastCheckerStatus":
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using_timer(value != 0)
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#self.logger('Checker for client %s (command "%s")'
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# % (self.properties["Name"], command))
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def using_timer(self, flag):
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"""Call this method with True or False when timer should be
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activated or deactivated.
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if flag and self._update_timer_callback_tag is None:
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old = self._update_timer_callback_lock
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self._update_timer_callback_lock += 1
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self._update_timer_callback_lock -= 1
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if old == 0 and self._update_timer_callback_lock:
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# Will update the shown timer value every second
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self._update_timer_callback_tag = (gobject.timeout_add
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self.update_timer))
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elif not (flag or self._update_timer_callback_tag is None):
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elif old and self._update_timer_callback_lock == 0:
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gobject.source_remove(self._update_timer_callback_tag)
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self._update_timer_callback_tag = None
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if os.WIFEXITED(condition):
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self.logger('Checker for client {0} (command "{1}")'
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' failed with exit code {2}'
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.format(self.properties["Name"], command,
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os.WEXITSTATUS(condition)))
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self.logger('Checker for client %s (command "%s")'
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' failed with exit code %s'
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% (self.properties["Name"], command,
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os.WEXITSTATUS(condition)))
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elif os.WIFSIGNALED(condition):
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self.logger('Checker for client {0} (command "{1}") was'
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' killed by signal {2}'
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.format(self.properties["Name"], command,
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os.WTERMSIG(condition)))
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self.logger('Checker for client %s (command "%s")'
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' was killed by signal %s'
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% (self.properties["Name"], command,
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os.WTERMSIG(condition)))
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elif os.WCOREDUMP(condition):
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self.logger('Checker for client {0} (command "{1}")'
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self.logger('Checker for client %s (command "%s")'
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.format(self.properties["Name"], command))
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% (self.properties["Name"], command))
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self.logger('Checker for client {0} completed'
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.format(self.properties["Name"]))
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self.logger('Checker for client %s completed'
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def checker_started(self, command):
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"""Server signals that a checker started. This could be useful
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to log in the future. """
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#self.logger('Client {0} started checker "{1}"'
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# .format(self.properties["Name"],
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#self.logger('Client %s started checker "%s"'
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# % (self.properties["Name"], unicode(command)))
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def got_secret(self):
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self.logger('Client {0} received its secret'
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.format(self.properties["Name"]))
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self.logger('Client %s received its secret'
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% self.properties["Name"])
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def need_approval(self, timeout, default):
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message = 'Client {0} needs approval within {1} seconds'
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message = 'Client %s needs approval within %s seconds'
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message = 'Client {0} will get its secret in {1} seconds'
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self.logger(message.format(self.properties["Name"],
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message = 'Client %s will get its secret in %s seconds'
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% (self.properties["Name"], timeout/1000))
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self.using_timer(True)
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def rejected(self, reason):
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self.logger('Client {0} was rejected; reason: {1}'
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.format(self.properties["Name"], reason))
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self.logger('Client %s was rejected; reason: %s'
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% (self.properties["Name"], reason))
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def selectable(self):
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"""Make this a "selectable" widget.
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"bold-underline-blink":
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"bold-underline-blink-standout",
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# Rebuild focus and non-focus widgets using current properties
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# Base part of a client. Name!
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base = '{name}: '.format(name=self.properties["Name"])
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% {"name": self.properties["Name"]})
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if not self.properties["Enabled"]:
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message = "DISABLED"
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self.using_timer(False)
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elif self.properties["ApprovalPending"]:
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timeout = datetime.timedelta(milliseconds
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= self.properties
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last_approval_request = isoformat_to_datetime(
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self.properties["LastApprovalRequest"])
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if last_approval_request is not None:
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timer = max(timeout - (datetime.datetime.utcnow()
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- last_approval_request),
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datetime.timedelta())
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timer = timeout - (datetime.datetime.utcnow()
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- last_approval_request)
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timer = datetime.timedelta()
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if self.properties["ApprovedByDefault"]:
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message = "Approval in {0}. (d)eny?"
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message = "Approval in %s. (d)eny?"
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message = "Denial in {0}. (a)pprove?"
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message = message.format(str(timer).rsplit(".", 1)[0])
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self.using_timer(True)
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message = "Denial in %s. (a)pprove?"
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message = message % unicode(timer).rsplit(".", 1)[0]
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elif self.properties["LastCheckerStatus"] != 0:
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# When checker has failed, show timer until client expires
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# When checker has failed, print a timer until client expires
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expires = self.properties["Expires"]
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if expires == "":
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timer = datetime.timedelta(0)
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expires = (datetime.datetime.strptime
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(expires, '%Y-%m-%dT%H:%M:%S.%f'))
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timer = max(expires - datetime.datetime.utcnow(),
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datetime.timedelta())
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expires = datetime.datetime.strptime(expires,
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'%Y-%m-%dT%H:%M:%S.%f')
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timer = expires - datetime.datetime.utcnow()
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message = ('A checker has failed! Time until client'
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' gets disabled: {0}'
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.format(str(timer).rsplit(".", 1)[0]))
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self.using_timer(True)
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% unicode(timer).rsplit(".", 1)[0])
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message = "enabled"
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self.using_timer(False)
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self._text = "{0}{1}".format(base, message)
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self._text = "%s%s" % (base, message)
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if not urwid.supports_unicode():
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self._text = self._text.encode("ascii", "replace")
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textlist = [("normal", self._text)]
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def property_changed(self, property=None, **kwargs):
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def property_changed(self, property=None, value=None,
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"""Call self.update() if old value is not new value.
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This overrides the method from MandosClientPropertyCache"""
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property_name = str(property)
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property_name = unicode(property)
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old_value = self.properties.get(property_name)
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super(MandosClientWidget, self).property_changed(
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property=property, **kwargs)
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property=property, value=value, *args, **kwargs)
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if self.properties.get(property_name) != old_value:
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"down" key presses, thus not allowing any containing widgets to
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use them as an excuse to shift focus away from this widget.
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def keypress(self, *args, **kwargs):
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ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
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def keypress(self, maxcolrow, key):
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ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
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if ret in ("up", "down"):
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"default", "default", None),
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"bold", "default", "bold"),
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"default", "default", "bold"),
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("underline-blink",
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"underline,blink", "default", "underline,blink"),
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"default", "default", "underline"),
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"standout", "default", "standout"),
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"default", "default", "standout"),
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("bold-underline-blink",
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"bold,underline,blink", "default", "bold,underline,blink"),
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"default", "default", ("bold", "underline")),
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("bold-standout",
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"bold,standout", "default", "bold,standout"),
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"default", "default", ("bold", "standout")),
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("underline-blink-standout",
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"underline,blink,standout", "default",
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"underline,blink,standout"),
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"default", "default", ("underline", "standout")),
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("bold-underline-blink-standout",
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"bold,underline,blink,standout", "default",
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"bold,underline,blink,standout"),
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"default", "default", ("bold", "underline",
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if urwid.supports_unicode():
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self.main_loop = gobject.MainLoop()
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def client_not_found(self, fingerprint, address):
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self.log_message("Client with address {0} and fingerprint"
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" {1} could not be found"
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.format(address, fingerprint))
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self.log_message(("Client with address %s and fingerprint %s"
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" could not be found" % (address,
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def rebuild(self):
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"""This rebuilds the User Interface.