30
62
urwid.curses_display.curses.A_UNDERLINE |= (
31
63
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
33
81
class MandosClientPropertyCache(object):
34
82
"""This wraps a Mandos Client D-Bus proxy object, caches the
35
83
properties and calls a hook function when any of them are
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,
86
def __init__(self, proxy_object=None, *args, **kwargs):
59
87
self.proxy = proxy_object # Mandos Client proxy object
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,
89
self.properties = dict()
90
self.property_changed_match = (
91
self.proxy.connect_to_signal("PropertyChanged",
92
self.property_changed,
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)
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__(
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)
98
104
def property_changed(self, property=None, value=None):
99
105
"""This is called whenever we get a PropertyChanged signal
100
106
It updates the changed property in the "properties" dict.
102
# Convert name and value
103
property_name, cvalue = self.convert_property(property, value)
104
108
# Update properties dict with new value
105
self.properties[property_name] = cvalue
109
self.properties[property] = value
111
def delete(self, *args, **kwargs):
112
self.property_changed_match.remove()
113
super(MandosClientPropertyCache, self).__init__(
108
117
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
129
143
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 {0}'
176
# .format(self.properties["Name"]))
178
def property_changed(self, property=None, value=None):
179
super(self, MandosClientWidget).property_changed(property,
181
if property == "ApprovalPending":
182
using_timer(bool(value))
183
if property == "LastCheckerStatus":
184
using_timer(value != 0)
185
#self.logger('Checker for client {0} (command "{1}") was '
186
# ' successful'.format(self.properties["Name"],
189
def using_timer(self, flag):
190
"""Call this method with True or False when timer should be
191
activated or deactivated.
193
old = self._update_timer_callback_lock
195
self._update_timer_callback_lock += 1
197
self._update_timer_callback_lock -= 1
198
if old == 0 and self._update_timer_callback_lock:
199
# Will update the shown timer value every second
200
self._update_timer_callback_tag = (gobject.timeout_add
203
elif old and self._update_timer_callback_lock == 0:
204
gobject.source_remove(self._update_timer_callback_tag)
205
self._update_timer_callback_tag = None
207
def checker_completed(self, exitstatus, condition, command):
212
if os.WIFEXITED(condition):
213
self.logger('Checker for client {0} (command "{1}")'
214
' failed with exit code {2}'
215
.format(self.properties["Name"], command,
216
os.WEXITSTATUS(condition)))
217
elif os.WIFSIGNALED(condition):
218
self.logger('Checker for client {0} (command "{1}") was'
219
' killed by signal {2}'
220
.format(self.properties["Name"], command,
221
os.WTERMSIG(condition)))
222
elif os.WCOREDUMP(condition):
223
self.logger('Checker for client {0} (command "{1}")'
225
.format(self.properties["Name"], command))
227
self.logger('Checker for client {0} completed'
229
.format(self.properties["Name"]))
232
def checker_started(self, command):
233
"""Server signals that a checker started. This could be useful
234
to log in the future. """
235
#self.logger('Client {0} started checker "{1}"'
236
# .format(self.properties["Name"],
240
def got_secret(self):
241
self.logger('Client {0} received its secret'
242
.format(self.properties["Name"]))
244
def need_approval(self, timeout, default):
246
message = 'Client {0} needs approval within {1} seconds'
248
message = 'Client {0} will get its secret in {1} seconds'
249
self.logger(message.format(self.properties["Name"],
251
self.using_timer(True)
253
def rejected(self, reason):
254
self.logger('Client {0} was rejected; reason: {1}'
255
.format(self.properties["Name"], reason))
131
257
def selectable(self):
132
258
"""Make this a "selectable" widget.
133
259
This overrides the method from urwid.FlowWidget."""
136
def rows(self, (maxcol,), focus=False):
262
def rows(self, maxcolrow, focus=False):
137
263
"""How many rows this widget will occupy might depend on
138
264
whether we have focus or not.
139
265
This overrides the method from urwid.FlowWidget"""
140
return self.current_widget(focus).rows((maxcol,), focus=focus)
266
return self.current_widget(focus).rows(maxcolrow, focus=focus)
142
268
def current_widget(self, focus=False):
143
269
if focus or self.opened:
147
273
def update(self):
148
274
"Called when what is visible on the screen should be updated."
149
275
# How to add standout mode to a style
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",
276
with_standout = { "normal": "standout",
277
"bold": "bold-standout",
279
"underline-blink-standout",
280
"bold-underline-blink":
281
"bold-underline-blink-standout",
158
284
# Rebuild focus and non-focus widgets using current properties
159
self._text = (u'name="%(name)s", enabled=%(enabled)s'
286
# Base part of a client. Name!
287
base = '{name}: '.format(name=self.properties["Name"])
288
if not self.properties["Enabled"]:
290
elif self.properties["ApprovalPending"]:
291
timeout = datetime.timedelta(milliseconds
294
last_approval_request = isoformat_to_datetime(
295
self.properties["LastApprovalRequest"])
296
if last_approval_request is not None:
297
timer = timeout - (datetime.datetime.utcnow()
298
- last_approval_request)
300
timer = datetime.timedelta()
301
if self.properties["ApprovedByDefault"]:
302
message = "Approval in {0}. (d)eny?"
304
message = "Denial in {0}. (a)pprove?"
305
message = message.format(unicode(timer).rsplit(".", 1)[0])
306
elif self.properties["LastCheckerStatus"] != 0:
307
# When checker has failed, print a timer until client expires
308
expires = self.properties["Expires"]
310
timer = datetime.timedelta(0)
312
expires = datetime.datetime.strptime(expires,
313
'%Y-%m-%dT%H:%M:%S.%f')
314
timer = expires - datetime.datetime.utcnow()
315
message = ('A checker has failed! Time until client'
316
' gets disabled: {0}'
317
.format(unicode(timer).rsplit(".", 1)[0]))
320
self._text = "{0}{1}".format(base, message)
161
322
if not urwid.supports_unicode():
162
323
self._text = self._text.encode("ascii", "replace")
163
textlist = [(u"normal", u"BLÄRGH: "), (u"bold", self._text)]
324
textlist = [("normal", self._text)]
164
325
self._text_widget.set_text(textlist)
165
326
self._focus_text_widget.set_text([(with_standout[text[0]],
174
335
if self.update_hook is not None:
175
336
self.update_hook()
338
def update_timer(self):
339
"""called by gobject. Will indefinitely loop until
340
gobject.source_remove() on tag is called"""
342
return True # Keep calling this
344
def delete(self, *args, **kwargs):
345
if self._update_timer_callback_tag is not None:
346
gobject.source_remove(self._update_timer_callback_tag)
347
self._update_timer_callback_tag = None
348
for match in self.match_objects:
350
self.match_objects = ()
178
351
if self.delete_hook is not None:
179
352
self.delete_hook(self)
353
return super(MandosClientWidget, self).delete(*args, **kwargs)
181
def render(self, (maxcol,), focus=False):
355
def render(self, maxcolrow, focus=False):
182
356
"""Render differently if we have focus.
183
357
This overrides the method from urwid.FlowWidget"""
184
return self.current_widget(focus).render((maxcol,),
358
return self.current_widget(focus).render(maxcolrow,
187
def keypress(self, (maxcol,), key):
361
def keypress(self, maxcolrow, key):
189
363
This overrides the method from urwid.FlowWidget"""
190
if key == u"e" or key == u"+":
192
elif key == u"d" or key == u"-":
194
elif key == u"r" or key == u"_":
365
self.proxy.Enable(dbus_interface = client_interface,
368
self.proxy.Disable(dbus_interface = client_interface,
371
self.proxy.Approve(dbus.Boolean(True, variant_level=1),
372
dbus_interface = client_interface,
375
self.proxy.Approve(dbus.Boolean(False, variant_level=1),
376
dbus_interface = client_interface,
378
elif key == "R" or key == "_" or key == "ctrl k":
195
379
self.server_proxy_object.RemoveClient(self.proxy
198
self.proxy.StartChecker()
200
self.proxy.StopChecker()
202
self.proxy.CheckedOK()
383
self.proxy.StartChecker(dbus_interface = client_interface,
386
self.proxy.StopChecker(dbus_interface = client_interface,
389
self.proxy.CheckedOK(dbus_interface = client_interface,
204
# elif key == u"p" or key == "=":
392
# elif key == "p" or key == "=":
205
393
# self.proxy.pause()
206
# elif key == u"u" or key == ":":
394
# elif key == "u" or key == ":":
207
395
# self.proxy.unpause()
208
# elif key == u"RET":
413
class ConstrainedListBox(urwid.ListBox):
414
"""Like a normal urwid.ListBox, but will consume all "up" or
415
"down" key presses, thus not allowing any containing widgets to
416
use them as an excuse to shift focus away from this widget.
418
def keypress(self, maxcolrow, key):
419
ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
420
if ret in ("up", "down"):
225
425
class UserInterface(object):
226
426
"""This is the entire user interface - the whole screen
227
427
with boxes, lists of client widgets, etc.
230
DBusGMainLoop(set_as_default=True )
429
def __init__(self, max_log_length=1000):
430
DBusGMainLoop(set_as_default=True)
232
432
self.screen = urwid.curses_display.Screen()
234
434
self.screen.register_palette((
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",
436
"default", "default", None),
438
"default", "default", "bold"),
440
"default", "default", "underline"),
442
"default", "default", "standout"),
443
("bold-underline-blink",
444
"default", "default", ("bold", "underline")),
446
"default", "default", ("bold", "standout")),
447
("underline-blink-standout",
448
"default", "default", ("underline", "standout")),
449
("bold-underline-blink-standout",
450
"default", "default", ("bold", "underline",
454
if urwid.supports_unicode():
455
self.divider = "─" # \u2500
456
#self.divider = "━" # \u2501
458
#self.divider = "-" # \u002d
459
self.divider = "_" # \u005f
254
461
self.screen.start()
256
463
self.size = self.screen.get_cols_rows()
258
465
self.clients = urwid.SimpleListWalker([])
259
466
self.clients_dict = {}
260
self.topwidget = urwid.LineBox(urwid.ListBox(self.clients))
261
#self.topwidget = urwid.ListBox(clients)
468
# We will add Text widgets to this list
470
self.max_log_length = max_log_length
472
# We keep a reference to the log widget so we can remove it
473
# from the ListWalker without it getting destroyed
474
self.logbox = ConstrainedListBox(self.log)
476
# This keeps track of whether self.uilist currently has
477
# self.logbox in it or not
478
self.log_visible = True
479
self.log_wrap = "any"
482
self.log_message_raw(("bold",
483
"Mandos Monitor version " + version))
484
self.log_message_raw(("bold",
263
487
self.busname = domain + '.Mandos'
264
488
self.main_loop = gobject.MainLoop()
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),
490
def client_not_found(self, fingerprint, address):
491
self.log_message("Client with address {0} and fingerprint"
492
" {1} could not be found"
493
.format(address, fingerprint))
496
"""This rebuilds the User Interface.
497
Call this when the widget layout needs to change"""
499
#self.uilist.append(urwid.ListBox(self.clients))
500
self.uilist.append(urwid.Frame(ConstrainedListBox(self.
502
#header=urwid.Divider(),
505
urwid.Divider(div_char=
508
self.uilist.append(self.logbox)
509
self.topwidget = urwid.Pile(self.uilist)
511
def log_message(self, message):
512
timestamp = datetime.datetime.now().isoformat()
513
self.log_message_raw(timestamp + ": " + message)
515
def log_message_raw(self, markup):
516
"""Add a log message to the log buffer."""
517
self.log.append(urwid.Text(markup, wrap=self.log_wrap))
518
if (self.max_log_length
519
and len(self.log) > self.max_log_length):
520
del self.log[0:len(self.log)-self.max_log_length-1]
521
self.logbox.set_focus(len(self.logbox.body.contents),
525
def toggle_log_display(self):
526
"""Toggle visibility of the log buffer."""
527
self.log_visible = not self.log_visible
529
#self.log_message("Log visibility changed to: "
530
# + unicode(self.log_visible))
532
def change_log_display(self):
533
"""Change type of log display.
534
Currently, this toggles wrapping of text lines."""
535
if self.log_wrap == "clip":
536
self.log_wrap = "any"
538
self.log_wrap = "clip"
539
for textwidget in self.log:
540
textwidget.set_wrap_mode(self.log_wrap)
541
#self.log_message("Wrap mode: " + self.log_wrap)
301
543
def find_and_remove_client(self, path, name):
302
"""Find an client from its object path and remove it.
544
"""Find a client by its object path and remove it.
304
546
This is connected to the ClientRemoved signal from the
305
547
Mandos server object."""
369
669
except KeyError: # :-)
372
if key == u"q" or key == u"Q":
672
if key == "q" or key == "Q":
375
elif key == u"window resize":
675
elif key == "window resize":
376
676
self.size = self.screen.get_cols_rows()
678
elif key == "\f": # Ctrl-L
680
elif key == "l" or key == "D":
681
self.toggle_log_display()
683
elif key == "w" or key == "i":
684
self.change_log_display()
686
elif key == "?" or key == "f1" or key == "esc":
687
if not self.log_visible:
688
self.log_visible = True
690
self.log_message_raw(("bold",
694
"l: Log window toggle",
695
"TAB: Switch window",
697
self.log_message_raw(("bold",
703
"s: Start new checker",
710
if self.topwidget.get_focus() is self.logbox:
711
self.topwidget.set_focus(0)
713
self.topwidget.set_focus(self.logbox)
715
#elif (key == "end" or key == "meta >" or key == "G"
717
# pass # xxx end-of-buffer
718
#elif (key == "home" or key == "meta <" or key == "g"
720
# pass # xxx beginning-of-buffer
721
#elif key == "ctrl e" or key == "$":
722
# pass # xxx move-end-of-line
723
#elif key == "ctrl a" or key == "^":
724
# pass # xxx move-beginning-of-line
725
#elif key == "ctrl b" or key == "meta (" or key == "h":
727
#elif key == "ctrl f" or key == "meta )" or key == "l":
730
# pass # scroll up log
732
# pass # scroll down log
380
733
elif self.topwidget.selectable():
381
734
self.topwidget.keypress(self.size, key)