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):
143
129
self.opened = False
145
last_checked_ok = isoformat_to_datetime(self.properties
148
if self.properties ["LastCheckerStatus"] != 0:
149
self.using_timer(True)
151
if self.need_approval:
152
self.using_timer(True)
154
self.match_objects = (
155
self.proxy.connect_to_signal("CheckerCompleted",
156
self.checker_completed,
159
self.proxy.connect_to_signal("CheckerStarted",
160
self.checker_started,
163
self.proxy.connect_to_signal("GotSecret",
167
self.proxy.connect_to_signal("NeedApproval",
171
self.proxy.connect_to_signal("Rejected",
175
#self.logger('Created client %s' % (self.properties["Name"]))
177
def property_changed(self, property=None, value=None):
178
super(self, MandosClientWidget).property_changed(property,
180
if property == "ApprovalPending":
181
using_timer(bool(value))
182
if property == "LastCheckerStatus":
183
using_timer(value != 0)
184
#self.logger('Checker for client %s (command "%s")'
186
# % (self.properties["Name"], command))
188
def using_timer(self, flag):
189
"""Call this method with True or False when timer should be
190
activated or deactivated.
192
old = self._update_timer_callback_lock
194
self._update_timer_callback_lock += 1
196
self._update_timer_callback_lock -= 1
197
if old == 0 and self._update_timer_callback_lock:
198
# Will update the shown timer value every second
199
self._update_timer_callback_tag = (gobject.timeout_add
202
elif old and self._update_timer_callback_lock == 0:
203
gobject.source_remove(self._update_timer_callback_tag)
204
self._update_timer_callback_tag = None
206
def checker_completed(self, exitstatus, condition, command):
211
if os.WIFEXITED(condition):
212
self.logger('Checker for client %s (command "%s")'
213
' failed with exit code %s'
214
% (self.properties["Name"], command,
215
os.WEXITSTATUS(condition)))
216
elif os.WIFSIGNALED(condition):
217
self.logger('Checker for client %s (command "%s")'
218
' was killed by signal %s'
219
% (self.properties["Name"], command,
220
os.WTERMSIG(condition)))
221
elif os.WCOREDUMP(condition):
222
self.logger('Checker for client %s (command "%s")'
224
% (self.properties["Name"], command))
226
self.logger('Checker for client %s completed'
230
def checker_started(self, command):
231
"""Server signals that a checker started. This could be useful
232
to log in the future. """
233
#self.logger('Client %s started checker "%s"'
234
# % (self.properties["Name"], unicode(command)))
237
def got_secret(self):
238
self.logger('Client %s received its secret'
239
% self.properties["Name"])
241
def need_approval(self, timeout, default):
243
message = 'Client %s needs approval within %s seconds'
245
message = 'Client %s will get its secret in %s seconds'
247
% (self.properties["Name"], timeout/1000))
248
self.using_timer(True)
250
def rejected(self, reason):
251
self.logger('Client %s was rejected; reason: %s'
252
% (self.properties["Name"], reason))
254
131
def selectable(self):
255
132
"""Make this a "selectable" widget.
256
133
This overrides the method from urwid.FlowWidget."""
259
def rows(self, maxcolrow, focus=False):
136
def rows(self, (maxcol,), focus=False):
260
137
"""How many rows this widget will occupy might depend on
261
138
whether we have focus or not.
262
139
This overrides the method from urwid.FlowWidget"""
263
return self.current_widget(focus).rows(maxcolrow, focus=focus)
140
return self.current_widget(focus).rows((maxcol,), focus=focus)
265
142
def current_widget(self, focus=False):
266
143
if focus or self.opened:
270
147
def update(self):
271
148
"Called when what is visible on the screen should be updated."
272
149
# How to add standout mode to a style
273
with_standout = { "normal": "standout",
274
"bold": "bold-standout",
276
"underline-blink-standout",
277
"bold-underline-blink":
278
"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",
281
158
# Rebuild focus and non-focus widgets using current properties
283
# Base part of a client. Name!
285
% {"name": self.properties["Name"]})
286
if not self.properties["Enabled"]:
288
elif self.properties["ApprovalPending"]:
289
timeout = datetime.timedelta(milliseconds
292
last_approval_request = isoformat_to_datetime(
293
self.properties["LastApprovalRequest"])
294
if last_approval_request is not None:
295
timer = timeout - (datetime.datetime.utcnow()
296
- last_approval_request)
298
timer = datetime.timedelta()
299
if self.properties["ApprovedByDefault"]:
300
message = "Approval in %s. (d)eny?"
302
message = "Denial in %s. (a)pprove?"
303
message = message % unicode(timer).rsplit(".", 1)[0]
304
elif self.properties["LastCheckerStatus"] != 0:
305
# When checker has failed, print a timer until client expires
306
expires = self.properties["Expires"]
308
timer = datetime.timedelta(0)
310
expires = datetime.datetime.strptime(expires,
311
'%Y-%m-%dT%H:%M:%S.%f')
312
timer = expires - datetime.datetime.utcnow()
313
message = ('A checker has failed! Time until client'
315
% unicode(timer).rsplit(".", 1)[0])
318
self._text = "%s%s" % (base, message)
159
self._text = (u'name="%(name)s", enabled=%(enabled)s'
320
161
if not urwid.supports_unicode():
321
162
self._text = self._text.encode("ascii", "replace")
322
textlist = [("normal", self._text)]
163
textlist = [(u"normal", u"BLÄRGH: "), (u"bold", self._text)]
323
164
self._text_widget.set_text(textlist)
324
165
self._focus_text_widget.set_text([(with_standout[text[0]],
333
174
if self.update_hook is not None:
334
175
self.update_hook()
336
def update_timer(self):
337
"""called by gobject. Will indefinitely loop until
338
gobject.source_remove() on tag is called"""
340
return True # Keep calling this
342
def delete(self, *args, **kwargs):
343
if self._update_timer_callback_tag is not None:
344
gobject.source_remove(self._update_timer_callback_tag)
345
self._update_timer_callback_tag = None
346
for match in self.match_objects:
348
self.match_objects = ()
349
178
if self.delete_hook is not None:
350
179
self.delete_hook(self)
351
return super(MandosClientWidget, self).delete(*args, **kwargs)
353
def render(self, maxcolrow, focus=False):
181
def render(self, (maxcol,), focus=False):
354
182
"""Render differently if we have focus.
355
183
This overrides the method from urwid.FlowWidget"""
356
return self.current_widget(focus).render(maxcolrow,
184
return self.current_widget(focus).render((maxcol,),
359
def keypress(self, maxcolrow, key):
187
def keypress(self, (maxcol,), key):
361
189
This overrides the method from urwid.FlowWidget"""
363
self.proxy.Enable(dbus_interface = client_interface,
366
self.proxy.Disable(dbus_interface = client_interface,
369
self.proxy.Approve(dbus.Boolean(True, variant_level=1),
370
dbus_interface = client_interface,
373
self.proxy.Approve(dbus.Boolean(False, variant_level=1),
374
dbus_interface = client_interface,
376
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"_":
377
195
self.server_proxy_object.RemoveClient(self.proxy
381
self.proxy.StartChecker(dbus_interface = client_interface,
384
self.proxy.StopChecker(dbus_interface = client_interface,
387
self.proxy.CheckedOK(dbus_interface = client_interface,
198
self.proxy.StartChecker()
200
self.proxy.StopChecker()
202
self.proxy.CheckedOK()
390
# elif key == "p" or key == "=":
204
# elif key == u"p" or key == "=":
391
205
# self.proxy.pause()
392
# elif key == "u" or key == ":":
206
# elif key == u"u" or key == ":":
393
207
# self.proxy.unpause()
208
# elif key == u"RET":
411
class ConstrainedListBox(urwid.ListBox):
412
"""Like a normal urwid.ListBox, but will consume all "up" or
413
"down" key presses, thus not allowing any containing widgets to
414
use them as an excuse to shift focus away from this widget.
416
def keypress(self, maxcolrow, key):
417
ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
418
if ret in ("up", "down"):
423
225
class UserInterface(object):
424
226
"""This is the entire user interface - the whole screen
425
227
with boxes, lists of client widgets, etc.
427
def __init__(self, max_log_length=1000):
428
DBusGMainLoop(set_as_default=True)
230
DBusGMainLoop(set_as_default=True )
430
232
self.screen = urwid.curses_display.Screen()
432
234
self.screen.register_palette((
434
"default", "default", None),
436
"default", "default", "bold"),
438
"default", "default", "underline"),
440
"default", "default", "standout"),
441
("bold-underline-blink",
442
"default", "default", ("bold", "underline")),
444
"default", "default", ("bold", "standout")),
445
("underline-blink-standout",
446
"default", "default", ("underline", "standout")),
447
("bold-underline-blink-standout",
448
"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",
452
if urwid.supports_unicode():
453
self.divider = "─" # \u2500
454
#self.divider = "━" # \u2501
456
#self.divider = "-" # \u002d
457
self.divider = "_" # \u005f
459
254
self.screen.start()
461
256
self.size = self.screen.get_cols_rows()
463
258
self.clients = urwid.SimpleListWalker([])
464
259
self.clients_dict = {}
466
# We will add Text widgets to this list
468
self.max_log_length = max_log_length
470
# We keep a reference to the log widget so we can remove it
471
# from the ListWalker without it getting destroyed
472
self.logbox = ConstrainedListBox(self.log)
474
# This keeps track of whether self.uilist currently has
475
# self.logbox in it or not
476
self.log_visible = True
477
self.log_wrap = "any"
480
self.log_message_raw(("bold",
481
"Mandos Monitor version " + version))
482
self.log_message_raw(("bold",
260
self.topwidget = urwid.LineBox(urwid.ListBox(self.clients))
261
#self.topwidget = urwid.ListBox(clients)
485
263
self.busname = domain + '.Mandos'
486
264
self.main_loop = gobject.MainLoop()
488
def client_not_found(self, fingerprint, address):
489
self.log_message(("Client with address %s and fingerprint %s"
490
" could not be found" % (address,
494
"""This rebuilds the User Interface.
495
Call this when the widget layout needs to change"""
497
#self.uilist.append(urwid.ListBox(self.clients))
498
self.uilist.append(urwid.Frame(ConstrainedListBox(self.
500
#header=urwid.Divider(),
503
urwid.Divider(div_char=
506
self.uilist.append(self.logbox)
507
self.topwidget = urwid.Pile(self.uilist)
509
def log_message(self, message):
510
timestamp = datetime.datetime.now().isoformat()
511
self.log_message_raw(timestamp + ": " + message)
513
def log_message_raw(self, markup):
514
"""Add a log message to the log buffer."""
515
self.log.append(urwid.Text(markup, wrap=self.log_wrap))
516
if (self.max_log_length
517
and len(self.log) > self.max_log_length):
518
del self.log[0:len(self.log)-self.max_log_length-1]
519
self.logbox.set_focus(len(self.logbox.body.contents),
523
def toggle_log_display(self):
524
"""Toggle visibility of the log buffer."""
525
self.log_visible = not self.log_visible
527
#self.log_message("Log visibility changed to: "
528
# + unicode(self.log_visible))
530
def change_log_display(self):
531
"""Change type of log display.
532
Currently, this toggles wrapping of text lines."""
533
if self.log_wrap == "clip":
534
self.log_wrap = "any"
536
self.log_wrap = "clip"
537
for textwidget in self.log:
538
textwidget.set_wrap_mode(self.log_wrap)
539
#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),
541
301
def find_and_remove_client(self, path, name):
542
"""Find a client by its object path and remove it.
302
"""Find an client from its object path and remove it.
544
304
This is connected to the ClientRemoved signal from the
545
305
Mandos server object."""
667
369
except KeyError: # :-)
670
if key == "q" or key == "Q":
372
if key == u"q" or key == u"Q":
673
elif key == "window resize":
375
elif key == u"window resize":
674
376
self.size = self.screen.get_cols_rows()
676
elif key == "\f": # Ctrl-L
678
elif key == "l" or key == "D":
679
self.toggle_log_display()
681
elif key == "w" or key == "i":
682
self.change_log_display()
684
elif key == "?" or key == "f1" or key == "esc":
685
if not self.log_visible:
686
self.log_visible = True
688
self.log_message_raw(("bold",
692
"l: Log window toggle",
693
"TAB: Switch window",
695
self.log_message_raw(("bold",
701
"s: Start new checker",
708
if self.topwidget.get_focus() is self.logbox:
709
self.topwidget.set_focus(0)
711
self.topwidget.set_focus(self.logbox)
713
#elif (key == "end" or key == "meta >" or key == "G"
715
# pass # xxx end-of-buffer
716
#elif (key == "home" or key == "meta <" or key == "g"
718
# pass # xxx beginning-of-buffer
719
#elif key == "ctrl e" or key == "$":
720
# pass # xxx move-end-of-line
721
#elif key == "ctrl a" or key == "^":
722
# pass # xxx move-beginning-of-line
723
#elif key == "ctrl b" or key == "meta (" or key == "h":
725
#elif key == "ctrl f" or key == "meta )" or key == "l":
728
# pass # scroll up log
730
# pass # scroll down log
731
380
elif self.topwidget.selectable():
732
381
self.topwidget.keypress(self.size, key)