62
30
urwid.curses_display.curses.A_UNDERLINE |= (
63
31
urwid.curses_display.curses.A_BLINK)
65
def isoformat_to_datetime(iso):
66
"Parse an ISO 8601 date string to a datetime.datetime()"
69
d, t = iso.split("T", 1)
70
year, month, day = d.split("-", 2)
71
hour, minute, second = t.split(":", 2)
72
second, fraction = divmod(float(second), 1)
73
return datetime.datetime(int(year),
78
int(second), # Whole seconds
79
int(fraction*1000000)) # Microseconds
81
33
class MandosClientPropertyCache(object):
82
34
"""This wraps a Mandos Client D-Bus proxy object, caches the
83
35
properties and calls a hook function when any of them are
86
def __init__(self, proxy_object=None, *args, **kwargs):
38
def __init__(self, proxy_object=None, properties=None, *args,
40
# Type conversion mapping
42
dbus.ObjectPath: unicode,
44
dbus.Signature: unicode,
52
dbus.Dictionary: dict,
87
59
self.proxy = proxy_object # Mandos Client proxy object
89
self.properties = dict()
90
self.property_changed_match = (
91
self.proxy.connect_to_signal("PropertyChanged",
92
self.property_changed,
61
if properties is None:
62
self.properties = dict()
64
self.properties = dict(self.convert_property(prop, val)
66
properties.iteritems())
67
self.proxy.connect_to_signal("PropertyChanged",
68
self.property_changed,
96
self.properties.update(
97
self.proxy.GetAll(client_interface,
98
dbus_interface = dbus.PROPERTIES_IFACE))
100
#XXX This breaks good super behaviour
101
# super(MandosClientPropertyCache, self).__init__(
72
if properties is None:
73
self.properties.update(
74
self.convert_property(prop, val)
76
self.proxy.GetAll(client_interface,
78
dbus.PROPERTIES_IFACE).iteritems())
79
super(MandosClientPropertyCache, self).__init__(
80
proxy_object=proxy_object,
81
properties=properties, *args, **kwargs)
83
def convert_property(self, property, value):
84
"""This converts the arguments from a D-Bus signal, which are
85
D-Bus types, into normal Python types, using a conversion
86
function from "self.type_map".
88
property_name = unicode(property) # Always a dbus.String
89
if isinstance(value, dbus.UTF8String):
90
# Should not happen, but prepare for it anyway
91
value = dbus.String(str(value).decode("utf-8"))
93
convfunc = self.type_map[type(value)]
95
# Unknown type, return unmodified
96
return property_name, value
97
return property_name, convfunc(value)
104
98
def property_changed(self, property=None, value=None):
105
99
"""This is called whenever we get a PropertyChanged signal
106
100
It updates the changed property in the "properties" dict.
102
# Convert name and value
103
property_name, cvalue = self.convert_property(property, value)
108
104
# Update properties dict with new value
109
self.properties[property] = value
111
def delete(self, *args, **kwargs):
112
self.property_changed_match.remove()
113
super(MandosClientPropertyCache, self).__init__(
105
self.properties[property_name] = cvalue
117
108
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
144
129
self.opened = False
146
last_checked_ok = isoformat_to_datetime(self.properties
148
if last_checked_ok is None:
149
self.last_checker_failed = True
151
self.last_checker_failed = ((datetime.datetime.utcnow()
158
if self.last_checker_failed:
159
self.using_timer(True)
161
if self.need_approval:
162
self.using_timer(True)
164
self.match_objects = (
165
self.proxy.connect_to_signal("CheckerCompleted",
166
self.checker_completed,
169
self.proxy.connect_to_signal("CheckerStarted",
170
self.checker_started,
173
self.proxy.connect_to_signal("GotSecret",
177
self.proxy.connect_to_signal("NeedApproval",
181
self.proxy.connect_to_signal("Rejected",
185
#self.logger('Created client %s' % (self.properties["Name"]))
187
def property_changed(self, property=None, value=None):
188
super(self, MandosClientWidget).property_changed(property,
190
if property == "ApprovalPending":
191
using_timer(bool(value))
193
def using_timer(self, flag):
194
"""Call this method with True or False when timer should be
195
activated or deactivated.
197
old = self._update_timer_callback_lock
199
self._update_timer_callback_lock += 1
201
self._update_timer_callback_lock -= 1
202
if old == 0 and self._update_timer_callback_lock:
203
# Will update the shown timer value every second
204
self._update_timer_callback_tag = (gobject.timeout_add
207
elif old and self._update_timer_callback_lock == 0:
208
gobject.source_remove(self._update_timer_callback_tag)
209
self._update_timer_callback_tag = None
211
def checker_completed(self, exitstatus, condition, command):
213
if self.last_checker_failed:
214
self.last_checker_failed = False
215
self.using_timer(False)
216
#self.logger('Checker for client %s (command "%s")'
218
# % (self.properties["Name"], command))
222
if not self.last_checker_failed:
223
self.last_checker_failed = True
224
self.using_timer(True)
225
if os.WIFEXITED(condition):
226
self.logger('Checker for client %s (command "%s")'
227
' failed with exit code %s'
228
% (self.properties["Name"], command,
229
os.WEXITSTATUS(condition)))
230
elif os.WIFSIGNALED(condition):
231
self.logger('Checker for client %s (command "%s")'
232
' was killed by signal %s'
233
% (self.properties["Name"], command,
234
os.WTERMSIG(condition)))
235
elif os.WCOREDUMP(condition):
236
self.logger('Checker for client %s (command "%s")'
238
% (self.properties["Name"], command))
240
self.logger('Checker for client %s completed'
244
def checker_started(self, command):
245
"""Server signals that a checker started. This could be useful
246
to log in the future. """
247
#self.logger('Client %s started checker "%s"'
248
# % (self.properties["Name"], unicode(command)))
251
def got_secret(self):
252
self.last_checker_failed = False
253
self.logger('Client %s received its secret'
254
% self.properties["Name"])
256
def need_approval(self, timeout, default):
258
message = 'Client %s needs approval within %s seconds'
260
message = 'Client %s will get its secret in %s seconds'
262
% (self.properties["Name"], timeout/1000))
263
self.using_timer(True)
265
def rejected(self, reason):
266
self.logger('Client %s was rejected; reason: %s'
267
% (self.properties["Name"], reason))
269
131
def selectable(self):
270
132
"""Make this a "selectable" widget.
271
133
This overrides the method from urwid.FlowWidget."""
274
def rows(self, maxcolrow, focus=False):
136
def rows(self, (maxcol,), focus=False):
275
137
"""How many rows this widget will occupy might depend on
276
138
whether we have focus or not.
277
139
This overrides the method from urwid.FlowWidget"""
278
return self.current_widget(focus).rows(maxcolrow, focus=focus)
140
return self.current_widget(focus).rows((maxcol,), focus=focus)
280
142
def current_widget(self, focus=False):
281
143
if focus or self.opened:
285
147
def update(self):
286
148
"Called when what is visible on the screen should be updated."
287
149
# How to add standout mode to a style
288
with_standout = { "normal": "standout",
289
"bold": "bold-standout",
291
"underline-blink-standout",
292
"bold-underline-blink":
293
"bold-underline-blink-standout",
150
with_standout = { u"normal": u"standout",
151
u"bold": u"bold-standout",
153
u"underline-blink-standout",
154
u"bold-underline-blink":
155
u"bold-underline-blink-standout",
296
158
# Rebuild focus and non-focus widgets using current properties
298
# Base part of a client. Name!
300
% {"name": self.properties["Name"]})
301
if not self.properties["Enabled"]:
303
elif self.properties["ApprovalPending"]:
304
timeout = datetime.timedelta(milliseconds
307
last_approval_request = isoformat_to_datetime(
308
self.properties["LastApprovalRequest"])
309
if last_approval_request is not None:
310
timer = timeout - (datetime.datetime.utcnow()
311
- last_approval_request)
313
timer = datetime.timedelta()
314
if self.properties["ApprovedByDefault"]:
315
message = "Approval in %s. (d)eny?"
317
message = "Denial in %s. (a)pprove?"
318
message = message % unicode(timer).rsplit(".", 1)[0]
319
elif self.last_checker_failed:
320
# When checker has failed, print a timer until client expires
321
expires = self.properties["Expires"]
323
timer = datetime.timedelta(0)
325
expires = datetime.datetime.strptime(expires,
326
'%Y-%m-%dT%H:%M:%S.%f')
327
timer = expires - datetime.datetime.utcnow()
328
message = ('A checker has failed! Time until client'
330
% unicode(timer).rsplit(".", 1)[0])
333
self._text = "%s%s" % (base, message)
159
self._text = (u'name="%(name)s", enabled=%(enabled)s'
335
161
if not urwid.supports_unicode():
336
162
self._text = self._text.encode("ascii", "replace")
337
textlist = [("normal", self._text)]
163
textlist = [(u"normal", u"BLÄRGH: "), (u"bold", self._text)]
338
164
self._text_widget.set_text(textlist)
339
165
self._focus_text_widget.set_text([(with_standout[text[0]],
348
174
if self.update_hook is not None:
349
175
self.update_hook()
351
def update_timer(self):
352
"""called by gobject. Will indefinitely loop until
353
gobject.source_remove() on tag is called"""
355
return True # Keep calling this
357
def delete(self, *args, **kwargs):
358
if self._update_timer_callback_tag is not None:
359
gobject.source_remove(self._update_timer_callback_tag)
360
self._update_timer_callback_tag = None
361
for match in self.match_objects:
363
self.match_objects = ()
364
178
if self.delete_hook is not None:
365
179
self.delete_hook(self)
366
return super(MandosClientWidget, self).delete(*args, **kwargs)
368
def render(self, maxcolrow, focus=False):
181
def render(self, (maxcol,), focus=False):
369
182
"""Render differently if we have focus.
370
183
This overrides the method from urwid.FlowWidget"""
371
return self.current_widget(focus).render(maxcolrow,
184
return self.current_widget(focus).render((maxcol,),
374
def keypress(self, maxcolrow, key):
187
def keypress(self, (maxcol,), key):
376
189
This overrides the method from urwid.FlowWidget"""
378
self.proxy.Enable(dbus_interface = client_interface,
381
self.proxy.Disable(dbus_interface = client_interface,
384
self.proxy.Approve(dbus.Boolean(True, variant_level=1),
385
dbus_interface = client_interface,
388
self.proxy.Approve(dbus.Boolean(False, variant_level=1),
389
dbus_interface = client_interface,
391
elif key == "R" or key == "_" or key == "ctrl k":
190
if key == u"e" or key == u"+":
192
elif key == u"d" or key == u"-":
194
elif key == u"r" or key == u"_":
392
195
self.server_proxy_object.RemoveClient(self.proxy
396
self.proxy.StartChecker(dbus_interface = client_interface,
399
self.proxy.StopChecker(dbus_interface = client_interface,
402
self.proxy.CheckedOK(dbus_interface = client_interface,
198
self.proxy.StartChecker()
200
self.proxy.StopChecker()
202
self.proxy.CheckedOK()
405
# elif key == "p" or key == "=":
204
# elif key == u"p" or key == "=":
406
205
# self.proxy.pause()
407
# elif key == "u" or key == ":":
206
# elif key == u"u" or key == ":":
408
207
# self.proxy.unpause()
208
# elif key == u"RET":
426
class ConstrainedListBox(urwid.ListBox):
427
"""Like a normal urwid.ListBox, but will consume all "up" or
428
"down" key presses, thus not allowing any containing widgets to
429
use them as an excuse to shift focus away from this widget.
431
def keypress(self, maxcolrow, key):
432
ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
433
if ret in ("up", "down"):
438
225
class UserInterface(object):
439
226
"""This is the entire user interface - the whole screen
440
227
with boxes, lists of client widgets, etc.
442
def __init__(self, max_log_length=1000):
443
DBusGMainLoop(set_as_default=True)
230
DBusGMainLoop(set_as_default=True )
445
232
self.screen = urwid.curses_display.Screen()
447
234
self.screen.register_palette((
449
"default", "default", None),
451
"default", "default", "bold"),
453
"default", "default", "underline"),
455
"default", "default", "standout"),
456
("bold-underline-blink",
457
"default", "default", ("bold", "underline")),
459
"default", "default", ("bold", "standout")),
460
("underline-blink-standout",
461
"default", "default", ("underline", "standout")),
462
("bold-underline-blink-standout",
463
"default", "default", ("bold", "underline",
236
u"default", u"default", None),
238
u"default", u"default", u"bold"),
240
u"default", u"default", u"underline"),
242
u"default", u"default", u"standout"),
243
(u"bold-underline-blink",
244
u"default", u"default", (u"bold", u"underline")),
246
u"default", u"default", (u"bold", u"standout")),
247
(u"underline-blink-standout",
248
u"default", u"default", (u"underline", u"standout")),
249
(u"bold-underline-blink-standout",
250
u"default", u"default", (u"bold", u"underline",
467
if urwid.supports_unicode():
468
self.divider = "─" # \u2500
469
#self.divider = "━" # \u2501
471
#self.divider = "-" # \u002d
472
self.divider = "_" # \u005f
474
254
self.screen.start()
476
256
self.size = self.screen.get_cols_rows()
478
258
self.clients = urwid.SimpleListWalker([])
479
259
self.clients_dict = {}
481
# We will add Text widgets to this list
483
self.max_log_length = max_log_length
485
# We keep a reference to the log widget so we can remove it
486
# from the ListWalker without it getting destroyed
487
self.logbox = ConstrainedListBox(self.log)
489
# This keeps track of whether self.uilist currently has
490
# self.logbox in it or not
491
self.log_visible = True
492
self.log_wrap = "any"
495
self.log_message_raw(("bold",
496
"Mandos Monitor version " + version))
497
self.log_message_raw(("bold",
260
self.topwidget = urwid.LineBox(urwid.ListBox(self.clients))
261
#self.topwidget = urwid.ListBox(clients)
500
263
self.busname = domain + '.Mandos'
501
264
self.main_loop = gobject.MainLoop()
503
def client_not_found(self, fingerprint, address):
504
self.log_message(("Client with address %s and fingerprint %s"
505
" could not be found" % (address,
509
"""This rebuilds the User Interface.
510
Call this when the widget layout needs to change"""
512
#self.uilist.append(urwid.ListBox(self.clients))
513
self.uilist.append(urwid.Frame(ConstrainedListBox(self.
515
#header=urwid.Divider(),
518
urwid.Divider(div_char=
521
self.uilist.append(self.logbox)
522
self.topwidget = urwid.Pile(self.uilist)
524
def log_message(self, message):
525
timestamp = datetime.datetime.now().isoformat()
526
self.log_message_raw(timestamp + ": " + message)
528
def log_message_raw(self, markup):
529
"""Add a log message to the log buffer."""
530
self.log.append(urwid.Text(markup, wrap=self.log_wrap))
531
if (self.max_log_length
532
and len(self.log) > self.max_log_length):
533
del self.log[0:len(self.log)-self.max_log_length-1]
534
self.logbox.set_focus(len(self.logbox.body.contents),
538
def toggle_log_display(self):
539
"""Toggle visibility of the log buffer."""
540
self.log_visible = not self.log_visible
542
#self.log_message("Log visibility changed to: "
543
# + unicode(self.log_visible))
545
def change_log_display(self):
546
"""Change type of log display.
547
Currently, this toggles wrapping of text lines."""
548
if self.log_wrap == "clip":
549
self.log_wrap = "any"
551
self.log_wrap = "clip"
552
for textwidget in self.log:
553
textwidget.set_wrap_mode(self.log_wrap)
554
#self.log_message("Wrap mode: " + self.log_wrap)
265
self.bus = dbus.SystemBus()
266
mandos_dbus_objc = self.bus.get_object(
267
self.busname, u"/", follow_name_owner_changes=True)
268
self.mandos_serv = dbus.Interface(mandos_dbus_objc,
272
mandos_clients = (self.mandos_serv
273
.GetAllClientsWithProperties())
274
except dbus.exceptions.DBusException:
275
mandos_clients = dbus.Dictionary()
278
.connect_to_signal("ClientRemoved",
279
self.find_and_remove_client,
280
dbus_interface=server_interface,
283
.connect_to_signal("ClientAdded",
285
dbus_interface=server_interface,
287
for path, client in (mandos_clients.iteritems()):
288
client_proxy_object = self.bus.get_object(self.busname,
290
self.add_client(MandosClientWidget(server_proxy_object
293
=client_proxy_object,
298
=self.remove_client),
556
301
def find_and_remove_client(self, path, name):
557
"""Find a client by its object path and remove it.
302
"""Find an client from its object path and remove it.
559
304
This is connected to the ClientRemoved signal from the
560
305
Mandos server object."""
682
369
except KeyError: # :-)
685
if key == "q" or key == "Q":
372
if key == u"q" or key == u"Q":
688
elif key == "window resize":
375
elif key == u"window resize":
689
376
self.size = self.screen.get_cols_rows()
691
elif key == "\f": # Ctrl-L
693
elif key == "l" or key == "D":
694
self.toggle_log_display()
696
elif key == "w" or key == "i":
697
self.change_log_display()
699
elif key == "?" or key == "f1" or key == "esc":
700
if not self.log_visible:
701
self.log_visible = True
703
self.log_message_raw(("bold",
707
"l: Log window toggle",
708
"TAB: Switch window",
710
self.log_message_raw(("bold",
716
"s: Start new checker",
723
if self.topwidget.get_focus() is self.logbox:
724
self.topwidget.set_focus(0)
726
self.topwidget.set_focus(self.logbox)
728
#elif (key == "end" or key == "meta >" or key == "G"
730
# pass # xxx end-of-buffer
731
#elif (key == "home" or key == "meta <" or key == "g"
733
# pass # xxx beginning-of-buffer
734
#elif key == "ctrl e" or key == "$":
735
# pass # xxx move-end-of-line
736
#elif key == "ctrl a" or key == "^":
737
# pass # xxx move-beginning-of-line
738
#elif key == "ctrl b" or key == "meta (" or key == "h":
740
#elif key == "ctrl f" or key == "meta )" or key == "l":
743
# pass # scroll up log
745
# pass # scroll down log
746
380
elif self.topwidget.selectable():
747
381
self.topwidget.keypress(self.size, key)