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  • Committer: teddy at bsnet
  • Date: 2010-09-08 19:25:13 UTC
  • Revision ID: teddy@fukt.bsnet.se-20100908192513-ccso0jpam3qg4yze
* TODO: Clarifications.

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mandos-monitor
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import UserList
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import locale
 
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locale.setlocale(locale.LC_ALL, u'')
 
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# Some useful constants
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domain = 'se.bsnet.fukt'
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server_interface = domain + '.Mandos'
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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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    changed.
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    """
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    def __init__(self, proxy_object=None, properties=None, *args,
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                 **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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        if properties is None:
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            self.properties = dict()
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        else:
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            self.properties = properties
 
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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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                                     client_interface,
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                                     byte_arrays=True)
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        if properties is None:
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            self.properties.update(self.proxy.GetAll(client_interface,
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                                                     dbus_interface =
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                                                     dbus.PROPERTIES_IFACE))
 
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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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        super(MandosClientPropertyCache, self).__init__(
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            proxy_object=proxy_object,
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            properties=properties, *args, **kwargs)
 
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            proxy_object=proxy_object, *args, **kwargs)
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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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        # 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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            return
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        if os.WIFSIGNALED(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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            return
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        if os.WCOREDUMP(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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                        u' dumped core'
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                        % (self.properties[u"name"], command))
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        self.logger(u'Checker for client %s completed mysteriously')
 
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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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    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'
 
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        self._text = (u'%(name)s: %(enabled)s%(timer)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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                               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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        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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            return
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        self.remove_client(client, path)
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    def add_new_client(self, path, properties):
 
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    def add_new_client(self, path):
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        client_proxy_object = self.bus.get_object(self.busname, path)
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        self.add_client(MandosClientWidget(server_proxy_object
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                                           =self.mandos_serv,
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                                           proxy_object
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                                           =client_proxy_object,
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                                           properties=properties,
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                                           update_hook
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                                           =self.refresh,
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                                           delete_hook
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                                           =self.remove_client),
 
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                                           =self.remove_client,
 
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                                           logger
 
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                                           =self.log_message),
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                        path=path)
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    def add_client(self, client, path=None):
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ui = UserInterface()
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try:
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    ui.run()
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except:
 
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except Exception, e:
 
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    ui.log_message(unicode(e))
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    ui.screen.stop()
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    raise