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mandos-monitor
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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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    if not iso:
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        return None
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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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    second, fraction = divmod(float(second), 1)
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    return datetime.datetime(int(year),
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                             int(month),
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                             int(day),
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                             int(hour),
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                             int(minute),
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                             int(second),           # Whole seconds
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                             int(fraction*1000000)) # Microseconds
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class MandosClientPropertyCache(object):
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    """This wraps a Mandos Client D-Bus proxy object, caches the
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    properties and calls a hook function when any of them are
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                                     self.property_changed,
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                                     client_interface,
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                                     byte_arrays=True)
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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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        # Logger
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        self.logger = logger
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        self._update_timer_callback_tag = None
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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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        # The widget shown when we have focus
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                                     self.rejected,
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                                     client_interface,
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                                     byte_arrays=True)
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        last_checked_ok = isoformat_to_datetime(self.properties
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                                                ["last_checked_ok"])
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        if last_checked_ok is None:
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            self.last_checker_failed = True
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        else:
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            self.last_checker_failed = ((datetime.datetime.utcnow()
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                                         - last_checked_ok)
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                                        > datetime.timedelta
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                                        (milliseconds=
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                                         self.properties["interval"]))
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        if self.last_checker_failed:
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            self._update_timer_callback_tag = (gobject.timeout_add
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                                               (1000,
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                                                self.update_timer))
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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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                gobject.source_remove(self._update_timer_callback_tag)
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                self._update_timer_callback_tag = None
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            self.logger(u'Checker for client %s (command "%s")'
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                        u' was successful'
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                        % (self.properties[u"name"], command))
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            self.update()
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            return
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        # Checker failed
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        if not self.last_checker_failed:
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            self.last_checker_failed = True
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            self._update_timer_callback_tag = (gobject.timeout_add
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                                               (1000,
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                                                self.update_timer))
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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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        elif os.WIFSIGNALED(condition):
 
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            return
 
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        if 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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        elif os.WCOREDUMP(condition):
 
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            return
 
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        if os.WCOREDUMP(condition):
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            self.logger(u'Checker for client %s (command "%s")'
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                        u' dumped core'
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                        % (self.properties[u"name"], command))
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        else:
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            self.logger(u'Checker for client %s completed mysteriously')
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        self.update()
 
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        self.logger(u'Checker for client %s completed mysteriously')
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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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                          }
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        # Rebuild focus and non-focus widgets using current properties
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        self._text = (u'%(name)s: %(enabled)s%(timer)s'
 
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        self._text = (u'%(name)s: %(enabled)s'
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                      % { u"name": self.properties[u"name"],
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                          u"enabled":
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                              (u"enabled"
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                               if self.properties[u"enabled"]
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                               else u"DISABLED"),
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                          u"timer": (unicode(datetime.timedelta
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                                             (milliseconds =
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                                              self.properties
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                                              [u"timeout"])
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                                             - (datetime.datetime
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                                                .utcnow()
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                                                - isoformat_to_datetime
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                                                (max((self.properties
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                                                 ["last_checked_ok"]
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                                                 or
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                                                 self.properties
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                                                 ["created"]),
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                                                    self.properties[u"last_enabled"]))))
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                                     if (self.last_checker_failed
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                                         and self.properties
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                                         [u"enabled"])
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                                     else u"")})
 
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                               else u"DISABLED")})
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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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        if self.update_hook is not None:
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            self.update_hook()
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    def update_timer(self):
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        "called by gobject"
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        self.update()
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        return True             # Keep calling this
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    def delete(self):
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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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        if self.delete_hook is not None:
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            self.delete_hook(self)
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