To get this branch, use:
bzr branch
http://bzr.recompile.se/loggerhead/mandos/trunk
« back to all changes in this revision
Viewing changes to mandos-monitor
- browse files at revision 176
- compare with another revision
- download diff
- download tarball
- view history from revision 176
- Committer: Teddy Hogeborn
- Date: 2008-09-07 01:44:44 UTC
- mfrom: (24.1.93 mandos)
- Revision ID: teddy@fukt.bsnet.se-20080907014444-cf4ilzndc0tbn8va
Merge & resolve.
- files added:
- etc-plugins.d-README
- files removed:
- .bzr-builddeb
- debian
- debian/po
- files modified:
- .bzrignore
added
removed
mandos-monitor
1
#!/usr/bin/python
2
# -*- mode: python; coding: utf-8 -*-
3
4
from __future__ import division, absolute_import, with_statement
5
6
import sys
7
import signal
8
9
import urwid.curses_display
10
import urwid
11
12
from dbus.mainloop.glib import DBusGMainLoop
13
import gobject
14
15
import dbus
16
17
import UserList
18
19
# Some useful constants
20
domain = 'se.bsnet.fukt'
21
server_interface = domain + '.Mandos'
22
client_interface = domain + '.Mandos.Client'
23
version = "1.0.14"
24
25
# Always run in monochrome mode
26
urwid.curses_display.curses.has_colors = lambda : False
27
28
# Urwid doesn't support blinking, but we want it. Since we have no
29
# use for underline on its own, we make underline also always blink.
30
urwid.curses_display.curses.A_UNDERLINE |= (
31
urwid.curses_display.curses.A_BLINK)
32
33
class MandosClientPropertyCache(object):
34
"""This wraps a Mandos Client D-Bus proxy object, caches the
35
properties and calls a hook function when any of them are
36
changed.
37
"""
38
def __init__(self, proxy_object=None, properties=None, *args,
39
**kwargs):
40
self.proxy = proxy_object # Mandos Client proxy object
41
42
if properties is None:
43
self.properties = dict()
44
else:
45
self.properties = properties
46
self.proxy.connect_to_signal("PropertyChanged",
47
self.property_changed,
48
client_interface,
49
byte_arrays=True)
50
51
if properties is None:
52
self.properties.update(self.proxy.GetAll(client_interface,
53
dbus_interface =
54
dbus.PROPERTIES_IFACE))
55
super(MandosClientPropertyCache, self).__init__(
56
proxy_object=proxy_object,
57
properties=properties, *args, **kwargs)
58
59
def property_changed(self, property=None, value=None):
60
"""This is called whenever we get a PropertyChanged signal
61
It updates the changed property in the "properties" dict.
62
"""
63
# Update properties dict with new value
64
self.properties[property] = value
65
66
67
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
68
"""A Mandos Client which is visible on the screen.
69
"""
70
71
def __init__(self, server_proxy_object=None, update_hook=None,
72
delete_hook=None, *args, **kwargs):
73
# Called on update
74
self.update_hook = update_hook
75
# Called on delete
76
self.delete_hook = delete_hook
77
# Mandos Server proxy object
78
self.server_proxy_object = server_proxy_object
79
80
# The widget shown normally
81
self._text_widget = urwid.Text("")
82
# The widget shown when we have focus
83
self._focus_text_widget = urwid.Text("")
84
super(MandosClientWidget, self).__init__(
85
update_hook=update_hook, delete_hook=delete_hook,
86
*args, **kwargs)
87
self.update()
88
self.opened = False
89
90
def selectable(self):
91
"""Make this a "selectable" widget.
92
This overrides the method from urwid.FlowWidget."""
93
return True
94
95
def rows(self, (maxcol,), focus=False):
96
"""How many rows this widget will occupy might depend on
97
whether we have focus or not.
98
This overrides the method from urwid.FlowWidget"""
99
return self.current_widget(focus).rows((maxcol,), focus=focus)
100
101
def current_widget(self, focus=False):
102
if focus or self.opened:
103
return self._focus_widget
104
return self._widget
105
106
def update(self):
107
"Called when what is visible on the screen should be updated."
108
# How to add standout mode to a style
109
with_standout = { u"normal": u"standout",
110
u"bold": u"bold-standout",
111
u"underline-blink":
112
u"underline-blink-standout",
113
u"bold-underline-blink":
114
u"bold-underline-blink-standout",
115
}
116
117
# Rebuild focus and non-focus widgets using current properties
118
self._text = (u'name="%(name)s", enabled=%(enabled)s'
119
% self.properties)
120
if not urwid.supports_unicode():
121
self._text = self._text.encode("ascii", "replace")
122
textlist = [(u"normal", u"BLARGH: "), (u"bold", self._text)]
123
self._text_widget.set_text(textlist)
124
self._focus_text_widget.set_text([(with_standout[text[0]],
125
text[1])
126
if isinstance(text, tuple)
127
else text
128
for text in textlist])
129
self._widget = self._text_widget
130
self._focus_widget = urwid.AttrWrap(self._focus_text_widget,
131
"standout")
132
# Run update hook, if any
133
if self.update_hook is not None:
134
self.update_hook()
135
136
def delete(self):
137
if self.delete_hook is not None:
138
self.delete_hook(self)
139
140
def render(self, (maxcol,), focus=False):
141
"""Render differently if we have focus.
142
This overrides the method from urwid.FlowWidget"""
143
return self.current_widget(focus).render((maxcol,),
144
focus=focus)
145
146
def keypress(self, (maxcol,), key):
147
"""Handle keys.
148
This overrides the method from urwid.FlowWidget"""
149
if key == u"e" or key == u"+":
150
self.proxy.Enable()
151
elif key == u"d" or key == u"-":
152
self.proxy.Disable()
153
elif key == u"r" or key == u"_":
154
self.server_proxy_object.RemoveClient(self.proxy
155
.object_path)
156
elif key == u"s":
157
self.proxy.StartChecker()
158
elif key == u"c":
159
self.proxy.StopChecker()
160
elif key == u"S":
161
self.proxy.CheckedOK()
162
# xxx
163
# elif key == u"p" or key == "=":
164
# self.proxy.pause()
165
# elif key == u"u" or key == ":":
166
# self.proxy.unpause()
167
# elif key == u"RET":
168
# self.open()
169
else:
170
return key
171
172
def property_changed(self, property=None, value=None,
173
*args, **kwargs):
174
"""Call self.update() if old value is not new value.
175
This overrides the method from MandosClientPropertyCache"""
176
property_name = unicode(property)
177
old_value = self.properties.get(property_name)
178
super(MandosClientWidget, self).property_changed(
179
property=property, value=value, *args, **kwargs)
180
if self.properties.get(property_name) != old_value:
181
self.update()
182
183
184
class ConstrainedListBox(urwid.ListBox):
185
"""Like a normal urwid.ListBox, but will consume all "up" or
186
"down" key presses, thus not allowing any containing widgets to
187
use them as an excuse to shift focus away from this widget.
188
"""
189
def keypress(self, (maxcol, maxrow), key):
190
ret = super(ConstrainedListBox, self).keypress((maxcol, maxrow), key)
191
if ret in (u"up", u"down"):
192
return
193
return ret
194
195
196
class UserInterface(object):
197
"""This is the entire user interface - the whole screen
198
with boxes, lists of client widgets, etc.
199
"""
200
def __init__(self, max_log_length=1000):
201
DBusGMainLoop(set_as_default=True)
202
203
self.screen = urwid.curses_display.Screen()
204
205
self.screen.register_palette((
206
(u"normal",
207
u"default", u"default", None),
208
(u"bold",
209
u"default", u"default", u"bold"),
210
(u"underline-blink",
211
u"default", u"default", u"underline"),
212
(u"standout",
213
u"default", u"default", u"standout"),
214
(u"bold-underline-blink",
215
u"default", u"default", (u"bold", u"underline")),
216
(u"bold-standout",
217
u"default", u"default", (u"bold", u"standout")),
218
(u"underline-blink-standout",
219
u"default", u"default", (u"underline", u"standout")),
220
(u"bold-underline-blink-standout",
221
u"default", u"default", (u"bold", u"underline",
222
u"standout")),
223
))
224
225
if urwid.supports_unicode():
226
#self.divider = u"─" # \u2500
227
self.divider = u"━" # \u2501
228
else:
229
#self.divider = u"-" # \u002d
230
self.divider = u"_" # \u005f
231
232
self.screen.start()
233
234
self.size = self.screen.get_cols_rows()
235
236
self.clients = urwid.SimpleListWalker([])
237
self.clients_dict = {}
238
239
# We will add Text widgets to this list
240
self.log = []
241
self.max_log_length = max_log_length
242
243
# We keep a reference to the log widget so we can remove it
244
# from the ListWalker without it getting destroyed
245
self.logbox = ConstrainedListBox(self.log)
246
247
# This keeps track of whether self.uilist currently has
248
# self.logbox in it or not
249
self.log_visible = True
250
self.log_wrap = u"any"
251
252
self.rebuild()
253
self.log_message(u"Message")
254
self.log_message(u"Message0 Message1 Message2 Message3 Message4 Message5 Message6 Message7 Message8 Message9")
255
self.log_message(u"Message10 Message11 Message12 Message13 Message14 Message15 Message16 Message17 Message18 Message19")
256
self.log_message(u"Message20 Message21 Message22 Message23 Message24 Message25 Message26 Message27 Message28 Message29")
257
258
self.busname = domain + '.Mandos'
259
self.main_loop = gobject.MainLoop()
260
self.bus = dbus.SystemBus()
261
mandos_dbus_objc = self.bus.get_object(
262
self.busname, u"/", follow_name_owner_changes=True)
263
self.mandos_serv = dbus.Interface(mandos_dbus_objc,
264
dbus_interface
265
= server_interface)
266
try:
267
mandos_clients = (self.mandos_serv
268
.GetAllClientsWithProperties())
269
except dbus.exceptions.DBusException:
270
mandos_clients = dbus.Dictionary()
271
272
(self.mandos_serv
273
.connect_to_signal("ClientRemoved",
274
self.find_and_remove_client,
275
dbus_interface=server_interface,
276
byte_arrays=True))
277
(self.mandos_serv
278
.connect_to_signal("ClientAdded",
279
self.add_new_client,
280
dbus_interface=server_interface,
281
byte_arrays=True))
282
for path, client in mandos_clients.iteritems():
283
client_proxy_object = self.bus.get_object(self.busname,
284
path)
285
self.add_client(MandosClientWidget(server_proxy_object
286
=self.mandos_serv,
287
proxy_object
288
=client_proxy_object,
289
properties=client,
290
update_hook
291
=self.refresh,
292
delete_hook
293
=self.remove_client),
294
path=path)
295
296
def rebuild(self):
297
"""This rebuilds the User Interface.
298
Call this when the widget layout needs to change"""
299
self.uilist = []
300
#self.uilist.append(urwid.ListBox(self.clients))
301
self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
302
#header=urwid.Divider(),
303
header=None,
304
footer=urwid.Divider(div_char=self.divider)))
305
if self.log_visible:
306
self.uilist.append(self.logbox)
307
pass
308
self.topwidget = urwid.Pile(self.uilist)
309
310
def log_message(self, markup):
311
"""Add a log message to the log buffer."""
312
self.log.append(urwid.Text(markup, wrap=self.log_wrap))
313
if (self.max_log_length
314
and len(self.log) > self.max_log_length):
315
del self.log[0:len(self.log)-self.max_log_length-1]
316
317
def toggle_log_display(self):
318
"""Toggle visibility of the log buffer."""
319
self.log_visible = not self.log_visible
320
self.rebuild()
321
self.log_message(u"Log visibility changed to: "
322
+ unicode(self.log_visible))
323
324
def change_log_display(self):
325
"""Change type of log display.
326
Currently, this toggles wrapping of text lines."""
327
if self.log_wrap == u"clip":
328
self.log_wrap = u"any"
329
else:
330
self.log_wrap = u"clip"
331
for textwidget in self.log:
332
textwidget.set_wrap_mode(self.log_wrap)
333
self.log_message(u"Wrap mode: " + self.log_wrap)
334
335
def find_and_remove_client(self, path, name):
336
"""Find an client from its object path and remove it.
337
338
This is connected to the ClientRemoved signal from the
339
Mandos server object."""
340
try:
341
client = self.clients_dict[path]
342
except KeyError:
343
# not found?
344
return
345
self.remove_client(client, path)
346
347
def add_new_client(self, path, properties):
348
client_proxy_object = self.bus.get_object(self.busname, path)
349
self.add_client(MandosClientWidget(server_proxy_object
350
=self.mandos_serv,
351
proxy_object
352
=client_proxy_object,
353
properties=properties,
354
update_hook
355
=self.refresh,
356
delete_hook
357
=self.remove_client),
358
path=path)
359
360
def add_client(self, client, path=None):
361
self.clients.append(client)
362
if path is None:
363
path = client.proxy.object_path
364
self.clients_dict[path] = client
365
self.clients.sort(None, lambda c: c.properties[u"name"])
366
self.refresh()
367
368
def remove_client(self, client, path=None):
369
self.clients.remove(client)
370
if path is None:
371
path = client.proxy.object_path
372
del self.clients_dict[path]
373
if not self.clients_dict:
374
# Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
375
# is completely emptied, we need to recreate it.
376
self.clients = urwid.SimpleListWalker([])
377
self.rebuild()
378
self.refresh()
379
380
def refresh(self):
381
"""Redraw the screen"""
382
canvas = self.topwidget.render(self.size, focus=True)
383
self.screen.draw_screen(self.size, canvas)
384
385
def run(self):
386
"""Start the main loop and exit when it's done."""
387
self.refresh()
388
self._input_callback_tag = (gobject.io_add_watch
389
(sys.stdin.fileno(),
390
gobject.IO_IN,
391
self.process_input))
392
self.main_loop.run()
393
# Main loop has finished, we should close everything now
394
gobject.source_remove(self._input_callback_tag)
395
self.screen.stop()
396
397
def stop(self):
398
self.main_loop.quit()
399
400
def process_input(self, source, condition):
401
keys = self.screen.get_input()
402
translations = { u"ctrl n": u"down", # Emacs
403
u"ctrl p": u"up", # Emacs
404
u"ctrl v": u"page down", # Emacs
405
u"meta v": u"page up", # Emacs
406
u" ": u"page down", # less
407
u"f": u"page down", # less
408
u"b": u"page up", # less
409
u"j": u"down", # vi
410
u"k": u"up", # vi
411
}
412
for key in keys:
413
try:
414
key = translations[key]
415
except KeyError: # :-)
416
pass
417
418
if key == u"q" or key == u"Q":
419
self.stop()
420
break
421
elif key == u"window resize":
422
self.size = self.screen.get_cols_rows()
423
self.refresh()
424
elif key == u"\f": # Ctrl-L
425
self.refresh()
426
elif key == u"l" or key == u"D":
427
self.toggle_log_display()
428
self.refresh()
429
elif key == u"w" or key == u"i":
430
self.change_log_display()
431
self.refresh()
432
elif key == u"?" or key == u"f1":
433
self.log_message(u"Help!")
434
self.refresh()
435
elif key == u"tab":
436
if self.topwidget.get_focus() is self.logbox:
437
self.topwidget.set_focus(0)
438
else:
439
self.topwidget.set_focus(self.logbox)
440
self.refresh()
441
elif (key == u"end" or key == u"meta >" or key == u"G"
442
or key == u">"):
443
pass # xxx end-of-buffer
444
elif (key == u"home" or key == u"meta <" or key == u"g"
445
or key == u"<"):
446
pass # xxx beginning-of-buffer
447
elif key == u"ctrl e" or key == u"$":
448
pass # xxx move-end-of-line
449
elif key == u"ctrl a" or key == u"^":
450
pass # xxx move-beginning-of-line
451
elif key == u"ctrl b" or key == u"meta (" or key == u"h":
452
pass # xxx left
453
elif key == u"ctrl f" or key == u"meta )" or key == u"l":
454
pass # xxx right
455
elif key == u"a":
456
pass # scroll up log
457
elif key == u"z":
458
pass # scroll down log
459
elif self.topwidget.selectable():
460
self.topwidget.keypress(self.size, key)
461
self.refresh()
462
return True
463
464
ui = UserInterface()
465
try:
466
ui.run()
467
except:
468
ui.screen.stop()
469
raise
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0