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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 <http://www.gnu.org/licenses/>.
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# Contact the authors at <mandos@fukt.bsnet.se>.
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from __future__ import division, absolute_import, with_statement
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# along with this program. If not, see
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# <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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"Parse an ISO 8601 date string to a datetime.datetime()"
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d, t = iso.split(u"T", 1)
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year, month, day = d.split(u"-", 2)
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hour, minute, second = t.split(u":", 2)
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d, t = iso.split("T", 1)
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year, month, day = d.split("-", 2)
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hour, minute, second = t.split(":", 2)
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second, fraction = divmod(float(second), 1)
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return datetime.datetime(int(year),
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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, *args, **kwargs):
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def __init__(self, proxy_object=None, properties=None, **kwargs):
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self.proxy = proxy_object # Mandos Client proxy object
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self.properties = dict()
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self.proxy.connect_to_signal(u"PropertyChanged",
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self.property_changed,
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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 break good super behaviour!
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# super(MandosClientPropertyCache, self).__init__(
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self.properties = dict() if properties is None else properties
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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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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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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._update_timer_callback_tag = None
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self._update_timer_callback_lock = 0
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self.last_checker_failed = False
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# The widget shown normally
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self._text_widget = urwid.Text(u"")
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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(u"")
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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._focus_text_widget = urwid.Text("")
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super(MandosClientWidget, self).__init__(**kwargs)
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self.opened = False
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last_checked_ok = isoformat_to_datetime(self.properties
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if last_checked_ok is None:
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self.last_checker_failed = True
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self.last_checker_failed = ((datetime.datetime.utcnow()
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if self.last_checker_failed:
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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.proxy.connect_to_signal(u"CheckerCompleted",
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self.checker_completed,
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self.proxy.connect_to_signal(u"CheckerStarted",
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self.checker_started,
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self.proxy.connect_to_signal(u"GotSecret",
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self.proxy.connect_to_signal(u"NeedApproval",
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self.proxy.connect_to_signal(u"Rejected",
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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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self.proxy.connect_to_signal("CheckerStarted",
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self.checker_started,
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self.proxy.connect_to_signal("GotSecret",
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self.proxy.connect_to_signal("NeedApproval",
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self.proxy.connect_to_signal("Rejected",
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#self.logger('Created client {0}'
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# .format(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 == u"ApprovalPending":
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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 {0} (command "{1}") was '
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# ' successful'.format(self.properties["Name"],
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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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def checker_completed(self, exitstatus, condition, command):
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if exitstatus == 0:
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if self.last_checker_failed:
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self.last_checker_failed = False
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self.using_timer(False)
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#self.logger(u'Checker for client %s (command "%s")'
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# % (self.properties[u"Name"], command))
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if not self.last_checker_failed:
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self.last_checker_failed = True
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self.using_timer(True)
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if os.WIFEXITED(condition):
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self.logger(u'Checker for client %s (command "%s")'
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u' failed with exit code %s'
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% (self.properties[u"Name"], command,
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os.WEXITSTATUS(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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elif os.WIFSIGNALED(condition):
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self.logger(u'Checker for client %s (command "%s")'
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u' was killed by signal %s'
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% (self.properties[u"Name"], command,
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os.WTERMSIG(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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elif os.WCOREDUMP(condition):
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self.logger(u'Checker for client %s (command "%s")'
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% (self.properties[u"Name"], command))
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self.logger('Checker for client {0} (command "{1}")'
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.format(self.properties["Name"], command))
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self.logger(u'Checker for client %s completed'
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self.logger('Checker for client {0} completed'
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.format(self.properties["Name"]))
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def checker_started(self, command):
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#self.logger(u'Client %s started checker "%s"'
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# % (self.properties[u"Name"], unicode(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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def got_secret(self):
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self.last_checker_failed = False
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self.logger(u'Client %s received its secret'
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% self.properties[u"Name"])
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self.logger('Client {0} received its secret'
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.format(self.properties["Name"]))
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def need_approval(self, timeout, default):
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message = u'Client %s needs approval within %s seconds'
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message = 'Client {0} needs approval within {1} seconds'
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message = u'Client %s will get its secret in %s seconds'
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% (self.properties[u"Name"], timeout/1000))
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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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self.using_timer(True)
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def rejected(self, reason):
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self.logger(u'Client %s was rejected; reason: %s'
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% (self.properties[u"Name"], 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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def selectable(self):
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"""Make this a "selectable" widget.
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This overrides the method from urwid.FlowWidget."""
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def rows(self, (maxcol,), focus=False):
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def rows(self, maxcolrow, focus=False):
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"""How many rows this widget will occupy might depend on
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whether we have focus or not.
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This overrides the method from urwid.FlowWidget"""
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return self.current_widget(focus).rows((maxcol,), focus=focus)
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return self.current_widget(focus).rows(maxcolrow, focus=focus)
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def current_widget(self, focus=False):
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if focus or self.opened:
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def update(self):
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"Called when what is visible on the screen should be updated."
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# How to add standout mode to a style
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with_standout = { u"normal": u"standout",
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u"bold": u"bold-standout",
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u"underline-blink-standout",
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u"bold-underline-blink":
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u"bold-underline-blink-standout",
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with_standout = { "normal": "standout",
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"bold": "bold-standout",
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"underline-blink-standout",
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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 = (u'%(name)s: '
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% {u"name": self.properties[u"Name"]})
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if not self.properties[u"Enabled"]:
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message = u"DISABLED"
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elif self.properties[u"ApprovalPending"]:
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base = '{name}: '.format(name=self.properties["Name"])
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if not self.properties["Enabled"]:
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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[u"LastApprovalRequest"])
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self.properties["LastApprovalRequest"])
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if last_approval_request is not None:
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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[u"ApprovedByDefault"]:
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message = u"Approval in %s. (d)eny?"
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message = u"Denial in %s. (a)pprove?"
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message = message % unicode(timer).rsplit(".", 1)[0]
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elif self.last_checker_failed:
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timeout = datetime.timedelta(milliseconds
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last_ok = isoformat_to_datetime(
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max((self.properties[u"LastCheckedOK"]
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or self.properties[u"Created"]),
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self.properties[u"LastEnabled"]))
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timer = timeout - (datetime.datetime.utcnow() - last_ok)
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message = (u'A checker has failed! Time until client'
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u' gets disabled: %s'
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% unicode(timer).rsplit(".", 1)[0])
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if self.properties["ApprovedByDefault"]:
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message = "Approval in {0}. (d)eny?"
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message = "Denial in {0}. (a)pprove?"
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message = message.format(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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expires = self.properties["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 = 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(unicode(timer).rsplit(".", 1)[0]))
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self._text = "%s%s" % (base, message)
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self._text = "{0}{1}".format(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 = [(u"normal", self._text)]
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textlist = [("normal", self._text)]
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self._text_widget.set_text(textlist)
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self._focus_text_widget.set_text([(with_standout[text[0]],
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self.update_hook()
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def update_timer(self):
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"""called by gobject. Will indefinitely loop until
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gobject.source_remove() on tag is called"""
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return True # Keep calling this
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def delete(self, **kwargs):
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if self._update_timer_callback_tag is not None:
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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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for match in self.match_objects:
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self.match_objects = ()
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if self.delete_hook is not None:
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self.delete_hook(self)
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return super(MandosClientWidget, self).delete(**kwargs)
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def render(self, (maxcol,), focus=False):
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def render(self, maxcolrow, focus=False):
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"""Render differently if we have focus.
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This overrides the method from urwid.FlowWidget"""
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return self.current_widget(focus).render((maxcol,),
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return self.current_widget(focus).render(maxcolrow,
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def keypress(self, (maxcol,), key):
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def keypress(self, maxcolrow, key):
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This overrides the method from urwid.FlowWidget"""
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self.proxy.Enable(dbus_interface = client_interface)
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self.proxy.Disable(dbus_interface = client_interface)
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self.proxy.Enable(dbus_interface = client_interface,
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self.proxy.Disable(dbus_interface = client_interface,
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self.proxy.Approve(dbus.Boolean(True, variant_level=1),
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dbus_interface = client_interface)
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dbus_interface = client_interface,
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self.proxy.Approve(dbus.Boolean(False, variant_level=1),
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dbus_interface = client_interface)
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elif key == u"R" or key == u"_" or key == u"ctrl k":
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dbus_interface = client_interface,
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elif key == "R" or key == "_" or key == "ctrl k":
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self.server_proxy_object.RemoveClient(self.proxy
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self.proxy.StartChecker(dbus_interface = client_interface)
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self.proxy.StopChecker(dbus_interface = client_interface)
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self.proxy.CheckedOK(dbus_interface = client_interface)
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self.proxy.StartChecker(dbus_interface = client_interface,
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self.proxy.StopChecker(dbus_interface = client_interface,
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self.proxy.CheckedOK(dbus_interface = client_interface,
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# elif key == u"p" or key == "=":
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# elif key == "p" or key == "=":
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# self.proxy.pause()
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# elif key == u"u" or key == ":":
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# elif key == "u" or key == ":":
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# self.proxy.unpause()
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# elif key == u"RET":
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def property_changed(self, property=None, value=None,
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def property_changed(self, property=None, **kwargs):
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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 = unicode(property)
394
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old_value = self.properties.get(property_name)
395
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super(MandosClientWidget, self).property_changed(
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property=property, value=value, *args, **kwargs)
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property=property, **kwargs)
397
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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, (maxcol, maxrow), key):
407
ret = super(ConstrainedListBox, self).keypress((maxcol,
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if ret in (u"up", u"down"):
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def keypress(self, *args, **kwargs):
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ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
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if ret in ("up", "down"):
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self.screen = urwid.curses_display.Screen()
423
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self.screen.register_palette((
425
u"default", u"default", None),
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u"default", u"default", u"bold"),
429
u"default", u"default", u"underline"),
431
u"default", u"default", u"standout"),
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(u"bold-underline-blink",
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u"default", u"default", (u"bold", u"underline")),
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u"default", u"default", (u"bold", u"standout")),
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(u"underline-blink-standout",
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u"default", u"default", (u"underline", u"standout")),
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(u"bold-underline-blink-standout",
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u"default", u"default", (u"bold", u"underline",
437
"default", "default", None),
439
"default", "default", "bold"),
441
"default", "default", "underline"),
443
"default", "default", "standout"),
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("bold-underline-blink",
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"default", "default", ("bold", "underline")),
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"default", "default", ("bold", "standout")),
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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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"default", "default", ("bold", "underline",
443
455
if urwid.supports_unicode():
444
self.divider = u"─" # \u2500
445
#self.divider = u"━" # \u2501
456
self.divider = "─" # \u2500
457
#self.divider = "━" # \u2501
447
#self.divider = u"-" # \u002d
448
self.divider = u"_" # \u005f
459
#self.divider = "-" # \u002d
460
self.divider = "_" # \u005f
450
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self.screen.start()
465
477
# This keeps track of whether self.uilist currently has
466
478
# self.logbox in it or not
467
479
self.log_visible = True
468
self.log_wrap = u"any"
480
self.log_wrap = "any"
471
self.log_message_raw((u"bold",
472
u"Mandos Monitor version " + version))
473
self.log_message_raw((u"bold",
483
self.log_message_raw(("bold",
484
"Mandos Monitor version " + version))
485
self.log_message_raw(("bold",
476
488
self.busname = domain + '.Mandos'
477
489
self.main_loop = gobject.MainLoop()
478
self.bus = dbus.SystemBus()
479
mandos_dbus_objc = self.bus.get_object(
480
self.busname, u"/", follow_name_owner_changes=True)
481
self.mandos_serv = dbus.Interface(mandos_dbus_objc,
485
mandos_clients = (self.mandos_serv
486
.GetAllClientsWithProperties())
487
except dbus.exceptions.DBusException:
488
mandos_clients = dbus.Dictionary()
491
.connect_to_signal(u"ClientRemoved",
492
self.find_and_remove_client,
493
dbus_interface=server_interface,
496
.connect_to_signal(u"ClientAdded",
498
dbus_interface=server_interface,
501
.connect_to_signal(u"ClientNotFound",
502
self.client_not_found,
503
dbus_interface=server_interface,
505
for path, client in mandos_clients.iteritems():
506
client_proxy_object = self.bus.get_object(self.busname,
508
self.add_client(MandosClientWidget(server_proxy_object
511
=client_proxy_object,
521
491
def client_not_found(self, fingerprint, address):
522
self.log_message((u"Client with address %s and fingerprint %s"
523
u" could not be found" % (address,
492
self.log_message("Client with address {0} and fingerprint"
493
" {1} could not be found"
494
.format(address, fingerprint))
526
496
def rebuild(self):
527
497
"""This rebuilds the User Interface.
551
520
and len(self.log) > self.max_log_length):
552
521
del self.log[0:len(self.log)-self.max_log_length-1]
553
522
self.logbox.set_focus(len(self.logbox.body.contents),
554
coming_from=u"above")
557
526
def toggle_log_display(self):
558
527
"""Toggle visibility of the log buffer."""
559
528
self.log_visible = not self.log_visible
561
#self.log_message(u"Log visibility changed to: "
530
#self.log_message("Log visibility changed to: "
562
531
# + unicode(self.log_visible))
564
533
def change_log_display(self):
565
534
"""Change type of log display.
566
535
Currently, this toggles wrapping of text lines."""
567
if self.log_wrap == u"clip":
568
self.log_wrap = u"any"
536
if self.log_wrap == "clip":
537
self.log_wrap = "any"
570
self.log_wrap = u"clip"
539
self.log_wrap = "clip"
571
540
for textwidget in self.log:
572
541
textwidget.set_wrap_mode(self.log_wrap)
573
#self.log_message(u"Wrap mode: " + self.log_wrap)
542
#self.log_message("Wrap mode: " + self.log_wrap)
575
544
def find_and_remove_client(self, path, name):
576
"""Find an client from its object path and remove it.
545
"""Find a client by its object path and remove it.
578
547
This is connected to the ClientRemoved signal from the
579
548
Mandos server object."""
627
598
"""Start the main loop and exit when it's done."""
599
self.bus = dbus.SystemBus()
600
mandos_dbus_objc = self.bus.get_object(
601
self.busname, "/", follow_name_owner_changes=True)
602
self.mandos_serv = dbus.Interface(mandos_dbus_objc,
606
mandos_clients = (self.mandos_serv
607
.GetAllClientsWithProperties())
608
except dbus.exceptions.DBusException:
609
mandos_clients = dbus.Dictionary()
612
.connect_to_signal("ClientRemoved",
613
self.find_and_remove_client,
614
dbus_interface=server_interface,
617
.connect_to_signal("ClientAdded",
619
dbus_interface=server_interface,
622
.connect_to_signal("ClientNotFound",
623
self.client_not_found,
624
dbus_interface=server_interface,
626
for path, client in mandos_clients.iteritems():
627
client_proxy_object = self.bus.get_object(self.busname,
629
self.add_client(MandosClientWidget(server_proxy_object
632
=client_proxy_object,
629
643
self._input_callback_tag = (gobject.io_add_watch
630
644
(sys.stdin.fileno(),
641
655
def process_input(self, source, condition):
642
656
keys = self.screen.get_input()
643
translations = { u"ctrl n": u"down", # Emacs
644
u"ctrl p": u"up", # Emacs
645
u"ctrl v": u"page down", # Emacs
646
u"meta v": u"page up", # Emacs
647
u" ": u"page down", # less
648
u"f": u"page down", # less
649
u"b": u"page up", # less
657
translations = { "ctrl n": "down", # Emacs
658
"ctrl p": "up", # Emacs
659
"ctrl v": "page down", # Emacs
660
"meta v": "page up", # Emacs
661
" ": "page down", # less
662
"f": "page down", # less
663
"b": "page up", # less
656
670
except KeyError: # :-)
659
if key == u"q" or key == u"Q":
673
if key == "q" or key == "Q":
662
elif key == u"window resize":
676
elif key == "window resize":
663
677
self.size = self.screen.get_cols_rows()
665
elif key == u"\f": # Ctrl-L
679
elif key == "\f": # Ctrl-L
667
elif key == u"l" or key == u"D":
681
elif key == "l" or key == "D":
668
682
self.toggle_log_display()
670
elif key == u"w" or key == u"i":
684
elif key == "w" or key == "i":
671
685
self.change_log_display()
673
elif key == u"?" or key == u"f1" or key == u"esc":
687
elif key == "?" or key == "f1" or key == "esc":
674
688
if not self.log_visible:
675
689
self.log_visible = True
677
self.log_message_raw((u"bold",
681
u"l: Log window toggle",
682
u"TAB: Switch window",
684
self.log_message_raw((u"bold",
690
u"s: Start new checker",
691
self.log_message_raw(("bold",
695
"l: Log window toggle",
696
"TAB: Switch window",
698
self.log_message_raw(("bold",
704
"s: Start new checker",
697
711
if self.topwidget.get_focus() is self.logbox:
698
712
self.topwidget.set_focus(0)
700
714
self.topwidget.set_focus(self.logbox)
702
#elif (key == u"end" or key == u"meta >" or key == u"G"
716
#elif (key == "end" or key == "meta >" or key == "G"
704
718
# pass # xxx end-of-buffer
705
#elif (key == u"home" or key == u"meta <" or key == u"g"
719
#elif (key == "home" or key == "meta <" or key == "g"
707
721
# pass # xxx beginning-of-buffer
708
#elif key == u"ctrl e" or key == u"$":
722
#elif key == "ctrl e" or key == "$":
709
723
# pass # xxx move-end-of-line
710
#elif key == u"ctrl a" or key == u"^":
724
#elif key == "ctrl a" or key == "^":
711
725
# pass # xxx move-beginning-of-line
712
#elif key == u"ctrl b" or key == u"meta (" or key == u"h":
726
#elif key == "ctrl b" or key == "meta (" or key == "h":
713
727
# pass # xxx left
714
#elif key == u"ctrl f" or key == u"meta )" or key == u"l":
728
#elif key == "ctrl f" or key == "meta )" or key == "l":
715
729
# pass # xxx right
717
731
# pass # scroll up log
719
733
# pass # scroll down log
720
734
elif self.topwidget.selectable():
721
735
self.topwidget.keypress(self.size, key)