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  • Committer: Teddy Hogeborn
  • Date: 2014-02-16 12:54:34 UTC
  • mfrom: (237.7.203 trunk)
  • Revision ID: teddy@recompile.se-20140216125434-zll46tlbgvvl5wda
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mandos-monitor
1
1
#!/usr/bin/python
2
2
# -*- mode: python; coding: utf-8 -*-
 
3
# 
 
4
# Mandos Monitor - Control and monitor the Mandos server
 
5
# 
 
6
# Copyright © 2009-2013 Teddy Hogeborn
 
7
# Copyright © 2009-2013 Björn Påhlsson
 
8
# 
 
9
# This program is free software: you can redistribute it and/or modify
 
10
# it under the terms of the GNU General Public License as published by
 
11
# the Free Software Foundation, either version 3 of the License, or
 
12
# (at your option) any later version.
 
13
#
 
14
#     This program is distributed in the hope that it will be useful,
 
15
#     but WITHOUT ANY WARRANTY; without even the implied warranty of
 
16
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
17
#     GNU General Public License for more details.
 
18
# 
 
19
# You should have received a copy of the GNU General Public License
 
20
# along with this program.  If not, see
 
21
# <http://www.gnu.org/licenses/>.
 
22
# 
 
23
# Contact the authors at <mandos@recompile.se>.
 
24
# 
3
25
 
4
 
from __future__ import division, absolute_import, with_statement
 
26
from __future__ import (division, absolute_import, print_function,
 
27
                        unicode_literals)
 
28
try:
 
29
    from future_builtins import *
 
30
except ImportError:
 
31
    pass
5
32
 
6
33
import sys
 
34
import os
7
35
import signal
8
36
 
 
37
import datetime
 
38
 
9
39
import urwid.curses_display
10
40
import urwid
11
41
 
12
42
from dbus.mainloop.glib import DBusGMainLoop
13
 
import gobject
 
43
try:
 
44
    import gobject
 
45
except ImportError:
 
46
    from gi.repository import GObject as gobject
14
47
 
15
48
import dbus
16
49
 
17
 
import UserList
 
50
import locale
 
51
 
 
52
if sys.version_info[0] == 2:
 
53
    str = unicode
 
54
 
 
55
locale.setlocale(locale.LC_ALL, '')
 
56
 
 
57
import logging
 
58
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
18
59
 
19
60
# Some useful constants
20
 
domain = 'se.bsnet.fukt'
 
61
domain = 'se.recompile'
21
62
server_interface = domain + '.Mandos'
22
63
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)
 
64
version = "1.6.3"
 
65
 
 
66
def isoformat_to_datetime(iso):
 
67
    "Parse an ISO 8601 date string to a datetime.datetime()"
 
68
    if not iso:
 
69
        return None
 
70
    d, t = iso.split("T", 1)
 
71
    year, month, day = d.split("-", 2)
 
72
    hour, minute, second = t.split(":", 2)
 
73
    second, fraction = divmod(float(second), 1)
 
74
    return datetime.datetime(int(year),
 
75
                             int(month),
 
76
                             int(day),
 
77
                             int(hour),
 
78
                             int(minute),
 
79
                             int(second),           # Whole seconds
 
80
                             int(fraction*1000000)) # Microseconds
32
81
 
33
82
class MandosClientPropertyCache(object):
34
83
    """This wraps a Mandos Client D-Bus proxy object, caches the
35
84
    properties and calls a hook function when any of them are
36
85
    changed.
37
86
    """
38
 
    def __init__(self, proxy_object=None, properties=None, *args,
39
 
                 **kwargs):
40
 
        # Type conversion mapping
41
 
        self.type_map = {
42
 
            dbus.ObjectPath: unicode,
43
 
            dbus.ByteArray: str,
44
 
            dbus.Signature: unicode,
45
 
            dbus.Byte: chr,
46
 
            dbus.Int16: int,
47
 
            dbus.UInt16: int,
48
 
            dbus.Int32: int,
49
 
            dbus.UInt32: int,
50
 
            dbus.Int64: int,
51
 
            dbus.UInt64: int,
52
 
            dbus.Dictionary: dict,
53
 
            dbus.Array: list,
54
 
            dbus.String: unicode,
55
 
            dbus.Boolean: bool,
56
 
            dbus.Double: float,
57
 
            dbus.Struct: tuple,
58
 
            }
 
87
    def __init__(self, proxy_object=None, properties=None, **kwargs):
59
88
        self.proxy = proxy_object # Mandos Client proxy object
60
 
        
61
 
        if properties is None:
62
 
            self.properties = dict()
63
 
        else:
64
 
            self.properties = dict(self.convert_property(prop, val)
65
 
                                   for prop, val in
66
 
                                   properties.iteritems())
67
 
        self.proxy.connect_to_signal("PropertyChanged",
68
 
                                     self.property_changed,
69
 
                                     client_interface,
70
 
                                     byte_arrays=True)
 
89
        self.properties = dict() if properties is None else properties
 
90
        self.property_changed_match = (
 
91
            self.proxy.connect_to_signal("PropertyChanged",
 
92
                                         self._property_changed,
 
93
                                         client_interface,
 
94
                                         byte_arrays=True))
71
95
        
72
96
        if properties is None:
73
97
            self.properties.update(
74
 
                self.convert_property(prop, val)
75
 
                for prop, val in
76
98
                self.proxy.GetAll(client_interface,
77
 
                                  dbus_interface =
78
 
                                  dbus.PROPERTIES_IFACE).iteritems())
79
 
        super(MandosClientPropertyCache, self).__init__(
80
 
            proxy_object=proxy_object,
81
 
            properties=properties, *args, **kwargs)
82
 
    
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".
87
 
        """
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"))
92
 
        try:
93
 
            convfunc = self.type_map[type(value)]
94
 
        except KeyError:
95
 
            # Unknown type, return unmodified
96
 
            return property_name, value
97
 
        return property_name, convfunc(value)
 
99
                                  dbus_interface
 
100
                                  = dbus.PROPERTIES_IFACE))
 
101
        
 
102
        super(MandosClientPropertyCache, self).__init__(**kwargs)
 
103
    
 
104
    def _property_changed(self, property, value):
 
105
        """Helper which takes positional arguments"""
 
106
        return self.property_changed(property=property, value=value)
 
107
    
98
108
    def property_changed(self, property=None, value=None):
99
109
        """This is called whenever we get a PropertyChanged signal
100
110
        It updates the changed property in the "properties" dict.
101
111
        """
102
 
        # Convert name and value
103
 
        property_name, cvalue = self.convert_property(property, value)
104
112
        # Update properties dict with new value
105
 
        self.properties[property_name] = cvalue
 
113
        self.properties[property] = value
 
114
    
 
115
    def delete(self):
 
116
        self.property_changed_match.remove()
106
117
 
107
118
 
108
119
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
110
121
    """
111
122
    
112
123
    def __init__(self, server_proxy_object=None, update_hook=None,
113
 
                 delete_hook=None, *args, **kwargs):
 
124
                 delete_hook=None, logger=None, **kwargs):
114
125
        # Called on update
115
126
        self.update_hook = update_hook
116
127
        # Called on delete
117
128
        self.delete_hook = delete_hook
118
129
        # Mandos Server proxy object
119
130
        self.server_proxy_object = server_proxy_object
 
131
        # Logger
 
132
        self.logger = logger
 
133
        
 
134
        self._update_timer_callback_tag = None
120
135
        
121
136
        # The widget shown normally
122
137
        self._text_widget = urwid.Text("")
123
138
        # The widget shown when we have focus
124
139
        self._focus_text_widget = urwid.Text("")
125
 
        super(MandosClientWidget, self).__init__(
126
 
            update_hook=update_hook, delete_hook=delete_hook,
127
 
            *args, **kwargs)
 
140
        super(MandosClientWidget, self).__init__(**kwargs)
128
141
        self.update()
129
142
        self.opened = False
 
143
        
 
144
        self.match_objects = (
 
145
            self.proxy.connect_to_signal("CheckerCompleted",
 
146
                                         self.checker_completed,
 
147
                                         client_interface,
 
148
                                         byte_arrays=True),
 
149
            self.proxy.connect_to_signal("CheckerStarted",
 
150
                                         self.checker_started,
 
151
                                         client_interface,
 
152
                                         byte_arrays=True),
 
153
            self.proxy.connect_to_signal("GotSecret",
 
154
                                         self.got_secret,
 
155
                                         client_interface,
 
156
                                         byte_arrays=True),
 
157
            self.proxy.connect_to_signal("NeedApproval",
 
158
                                         self.need_approval,
 
159
                                         client_interface,
 
160
                                         byte_arrays=True),
 
161
            self.proxy.connect_to_signal("Rejected",
 
162
                                         self.rejected,
 
163
                                         client_interface,
 
164
                                         byte_arrays=True))
 
165
        #self.logger('Created client {0}'
 
166
        #            .format(self.properties["Name"]))
 
167
    
 
168
    def using_timer(self, flag):
 
169
        """Call this method with True or False when timer should be
 
170
        activated or deactivated.
 
171
        """
 
172
        if flag and self._update_timer_callback_tag is None:
 
173
            # Will update the shown timer value every second
 
174
            self._update_timer_callback_tag = (gobject.timeout_add
 
175
                                               (1000,
 
176
                                                self.update_timer))
 
177
        elif not (flag or self._update_timer_callback_tag is None):
 
178
            gobject.source_remove(self._update_timer_callback_tag)
 
179
            self._update_timer_callback_tag = None
 
180
    
 
181
    def checker_completed(self, exitstatus, condition, command):
 
182
        if exitstatus == 0:
 
183
            self.update()
 
184
            return
 
185
        # Checker failed
 
186
        if os.WIFEXITED(condition):
 
187
            self.logger('Checker for client {0} (command "{1}")'
 
188
                        ' failed with exit code {2}'
 
189
                        .format(self.properties["Name"], command,
 
190
                                os.WEXITSTATUS(condition)))
 
191
        elif os.WIFSIGNALED(condition):
 
192
            self.logger('Checker for client {0} (command "{1}") was'
 
193
                        ' killed by signal {2}'
 
194
                        .format(self.properties["Name"], command,
 
195
                                os.WTERMSIG(condition)))
 
196
        elif os.WCOREDUMP(condition):
 
197
            self.logger('Checker for client {0} (command "{1}")'
 
198
                        ' dumped core'
 
199
                        .format(self.properties["Name"], command))
 
200
        else:
 
201
            self.logger('Checker for client {0} completed'
 
202
                        ' mysteriously'
 
203
                        .format(self.properties["Name"]))
 
204
        self.update()
 
205
    
 
206
    def checker_started(self, command):
 
207
        """Server signals that a checker started. This could be useful
 
208
           to log in the future. """
 
209
        #self.logger('Client {0} started checker "{1}"'
 
210
        #            .format(self.properties["Name"],
 
211
        #                    str(command)))
 
212
        pass
 
213
    
 
214
    def got_secret(self):
 
215
        self.logger('Client {0} received its secret'
 
216
                    .format(self.properties["Name"]))
 
217
    
 
218
    def need_approval(self, timeout, default):
 
219
        if not default:
 
220
            message = 'Client {0} needs approval within {1} seconds'
 
221
        else:
 
222
            message = 'Client {0} will get its secret in {1} seconds'
 
223
        self.logger(message.format(self.properties["Name"],
 
224
                                   timeout/1000))
 
225
    
 
226
    def rejected(self, reason):
 
227
        self.logger('Client {0} was rejected; reason: {1}'
 
228
                    .format(self.properties["Name"], reason))
130
229
    
131
230
    def selectable(self):
132
231
        """Make this a "selectable" widget.
133
232
        This overrides the method from urwid.FlowWidget."""
134
233
        return True
135
234
    
136
 
    def rows(self, (maxcol,), focus=False):
 
235
    def rows(self, maxcolrow, focus=False):
137
236
        """How many rows this widget will occupy might depend on
138
237
        whether we have focus or not.
139
238
        This overrides the method from urwid.FlowWidget"""
140
 
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
239
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
141
240
    
142
241
    def current_widget(self, focus=False):
143
242
        if focus or self.opened:
147
246
    def update(self):
148
247
        "Called when what is visible on the screen should be updated."
149
248
        # How to add standout mode to a style
150
 
        with_standout = { u"normal": u"standout",
151
 
                          u"bold": u"bold-standout",
152
 
                          u"underline-blink":
153
 
                              u"underline-blink-standout",
154
 
                          u"bold-underline-blink":
155
 
                              u"bold-underline-blink-standout",
 
249
        with_standout = { "normal": "standout",
 
250
                          "bold": "bold-standout",
 
251
                          "underline-blink":
 
252
                              "underline-blink-standout",
 
253
                          "bold-underline-blink":
 
254
                              "bold-underline-blink-standout",
156
255
                          }
157
256
        
158
257
        # Rebuild focus and non-focus widgets using current properties
159
 
        self._text = (u'name="%(name)s", enabled=%(enabled)s'
160
 
                      % self.properties)
 
258
        
 
259
        # Base part of a client. Name!
 
260
        base = '{name}: '.format(name=self.properties["Name"])
 
261
        if not self.properties["Enabled"]:
 
262
            message = "DISABLED"
 
263
            self.using_timer(False)
 
264
        elif self.properties["ApprovalPending"]:
 
265
            timeout = datetime.timedelta(milliseconds
 
266
                                         = self.properties
 
267
                                         ["ApprovalDelay"])
 
268
            last_approval_request = isoformat_to_datetime(
 
269
                self.properties["LastApprovalRequest"])
 
270
            if last_approval_request is not None:
 
271
                timer = max(timeout - (datetime.datetime.utcnow()
 
272
                                       - last_approval_request),
 
273
                            datetime.timedelta())
 
274
            else:
 
275
                timer = datetime.timedelta()
 
276
            if self.properties["ApprovedByDefault"]:
 
277
                message = "Approval in {0}. (d)eny?"
 
278
            else:
 
279
                message = "Denial in {0}. (a)pprove?"
 
280
            message = message.format(str(timer).rsplit(".", 1)[0])
 
281
            self.using_timer(True)
 
282
        elif self.properties["LastCheckerStatus"] != 0:
 
283
            # When checker has failed, show timer until client expires
 
284
            expires = self.properties["Expires"]
 
285
            if expires == "":
 
286
                timer = datetime.timedelta(0)
 
287
            else:
 
288
                expires = (datetime.datetime.strptime
 
289
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
290
                timer = max(expires - datetime.datetime.utcnow(),
 
291
                            datetime.timedelta())
 
292
            message = ('A checker has failed! Time until client'
 
293
                       ' gets disabled: {0}'
 
294
                       .format(str(timer).rsplit(".", 1)[0]))
 
295
            self.using_timer(True)
 
296
        else:
 
297
            message = "enabled"
 
298
            self.using_timer(False)
 
299
        self._text = "{0}{1}".format(base, message)
 
300
        
161
301
        if not urwid.supports_unicode():
162
302
            self._text = self._text.encode("ascii", "replace")
163
 
        textlist = [(u"normal", u"BLÄRGH: "), (u"bold", self._text)]
 
303
        textlist = [("normal", self._text)]
164
304
        self._text_widget.set_text(textlist)
165
305
        self._focus_text_widget.set_text([(with_standout[text[0]],
166
306
                                           text[1])
174
314
        if self.update_hook is not None:
175
315
            self.update_hook()
176
316
    
177
 
    def delete(self):
 
317
    def update_timer(self):
 
318
        """called by gobject. Will indefinitely loop until
 
319
        gobject.source_remove() on tag is called"""
 
320
        self.update()
 
321
        return True             # Keep calling this
 
322
    
 
323
    def delete(self, **kwargs):
 
324
        if self._update_timer_callback_tag is not None:
 
325
            gobject.source_remove(self._update_timer_callback_tag)
 
326
            self._update_timer_callback_tag = None
 
327
        for match in self.match_objects:
 
328
            match.remove()
 
329
        self.match_objects = ()
178
330
        if self.delete_hook is not None:
179
331
            self.delete_hook(self)
 
332
        return super(MandosClientWidget, self).delete(**kwargs)
180
333
    
181
 
    def render(self, (maxcol,), focus=False):
 
334
    def render(self, maxcolrow, focus=False):
182
335
        """Render differently if we have focus.
183
336
        This overrides the method from urwid.FlowWidget"""
184
 
        return self.current_widget(focus).render((maxcol,),
 
337
        return self.current_widget(focus).render(maxcolrow,
185
338
                                                 focus=focus)
186
339
    
187
 
    def keypress(self, (maxcol,), key):
 
340
    def keypress(self, maxcolrow, key):
188
341
        """Handle keys.
189
342
        This overrides the method from urwid.FlowWidget"""
190
 
        if key == u"e" or key == u"+":
191
 
            self.proxy.Enable()
192
 
        elif key == u"d" or key == u"-":
193
 
            self.proxy.Disable()
194
 
        elif key == u"r" or key == u"_":
 
343
        if key == "+":
 
344
            self.proxy.Enable(dbus_interface = client_interface,
 
345
                              ignore_reply=True)
 
346
        elif key == "-":
 
347
            self.proxy.Disable(dbus_interface = client_interface,
 
348
                               ignore_reply=True)
 
349
        elif key == "a":
 
350
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
351
                               dbus_interface = client_interface,
 
352
                               ignore_reply=True)
 
353
        elif key == "d":
 
354
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
355
                                  dbus_interface = client_interface,
 
356
                               ignore_reply=True)
 
357
        elif key == "R" or key == "_" or key == "ctrl k":
195
358
            self.server_proxy_object.RemoveClient(self.proxy
196
 
                                                  .object_path)
197
 
        elif key == u"s":
198
 
            self.proxy.StartChecker()
199
 
        elif key == u"c":
200
 
            self.proxy.StopChecker()
201
 
        elif key == u"S":
202
 
            self.proxy.CheckedOK()
 
359
                                                  .object_path,
 
360
                                                  ignore_reply=True)
 
361
        elif key == "s":
 
362
            self.proxy.StartChecker(dbus_interface = client_interface,
 
363
                                    ignore_reply=True)
 
364
        elif key == "S":
 
365
            self.proxy.StopChecker(dbus_interface = client_interface,
 
366
                                   ignore_reply=True)
 
367
        elif key == "C":
 
368
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
369
                                 ignore_reply=True)
203
370
        # xxx
204
 
#         elif key == u"p" or key == "=":
 
371
#         elif key == "p" or key == "=":
205
372
#             self.proxy.pause()
206
 
#         elif key == u"u" or key == ":":
 
373
#         elif key == "u" or key == ":":
207
374
#             self.proxy.unpause()
208
 
#         elif key == u"RET":
 
375
#         elif key == "RET":
209
376
#             self.open()
210
377
        else:
211
378
            return key
212
379
    
213
 
    def property_changed(self, property=None, value=None,
214
 
                         *args, **kwargs):
 
380
    def property_changed(self, property=None, **kwargs):
215
381
        """Call self.update() if old value is not new value.
216
382
        This overrides the method from MandosClientPropertyCache"""
217
 
        property_name = unicode(property)
 
383
        property_name = str(property)
218
384
        old_value = self.properties.get(property_name)
219
385
        super(MandosClientWidget, self).property_changed(
220
 
            property=property, value=value, *args, **kwargs)
 
386
            property=property, **kwargs)
221
387
        if self.properties.get(property_name) != old_value:
222
388
            self.update()
223
389
 
224
390
 
 
391
class ConstrainedListBox(urwid.ListBox):
 
392
    """Like a normal urwid.ListBox, but will consume all "up" or
 
393
    "down" key presses, thus not allowing any containing widgets to
 
394
    use them as an excuse to shift focus away from this widget.
 
395
    """
 
396
    def keypress(self, *args, **kwargs):
 
397
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
 
398
        if ret in ("up", "down"):
 
399
            return
 
400
        return ret
 
401
 
 
402
 
225
403
class UserInterface(object):
226
404
    """This is the entire user interface - the whole screen
227
405
    with boxes, lists of client widgets, etc.
228
406
    """
229
 
    def __init__(self):
230
 
        DBusGMainLoop(set_as_default=True )
 
407
    def __init__(self, max_log_length=1000):
 
408
        DBusGMainLoop(set_as_default=True)
231
409
        
232
410
        self.screen = urwid.curses_display.Screen()
233
411
        
234
412
        self.screen.register_palette((
235
 
                (u"normal",
236
 
                 u"default", u"default", None),
237
 
                (u"bold",
238
 
                 u"default", u"default", u"bold"),
239
 
                (u"underline-blink",
240
 
                 u"default", u"default", u"underline"),
241
 
                (u"standout",
242
 
                 u"default", u"default", u"standout"),
243
 
                (u"bold-underline-blink",
244
 
                 u"default", u"default", (u"bold", u"underline")),
245
 
                (u"bold-standout",
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",
251
 
                                          u"standout")),
 
413
                ("normal",
 
414
                 "default", "default", None),
 
415
                ("bold",
 
416
                 "bold", "default", "bold"),
 
417
                ("underline-blink",
 
418
                 "underline,blink", "default", "underline,blink"),
 
419
                ("standout",
 
420
                 "standout", "default", "standout"),
 
421
                ("bold-underline-blink",
 
422
                 "bold,underline,blink", "default", "bold,underline,blink"),
 
423
                ("bold-standout",
 
424
                 "bold,standout", "default", "bold,standout"),
 
425
                ("underline-blink-standout",
 
426
                 "underline,blink,standout", "default",
 
427
                 "underline,blink,standout"),
 
428
                ("bold-underline-blink-standout",
 
429
                 "bold,underline,blink,standout", "default",
 
430
                 "bold,underline,blink,standout"),
252
431
                ))
253
432
        
 
433
        if urwid.supports_unicode():
 
434
            self.divider = "─" # \u2500
 
435
            #self.divider = "━" # \u2501
 
436
        else:
 
437
            #self.divider = "-" # \u002d
 
438
            self.divider = "_" # \u005f
 
439
        
254
440
        self.screen.start()
255
441
        
256
442
        self.size = self.screen.get_cols_rows()
257
443
        
258
444
        self.clients = urwid.SimpleListWalker([])
259
445
        self.clients_dict = {}
260
 
        self.topwidget = urwid.LineBox(urwid.ListBox(self.clients))
261
 
        #self.topwidget = urwid.ListBox(clients)
 
446
        
 
447
        # We will add Text widgets to this list
 
448
        self.log = []
 
449
        self.max_log_length = max_log_length
 
450
        
 
451
        # We keep a reference to the log widget so we can remove it
 
452
        # from the ListWalker without it getting destroyed
 
453
        self.logbox = ConstrainedListBox(self.log)
 
454
        
 
455
        # This keeps track of whether self.uilist currently has
 
456
        # self.logbox in it or not
 
457
        self.log_visible = True
 
458
        self.log_wrap = "any"
 
459
        
 
460
        self.rebuild()
 
461
        self.log_message_raw(("bold",
 
462
                              "Mandos Monitor version " + version))
 
463
        self.log_message_raw(("bold",
 
464
                              "q: Quit  ?: Help"))
262
465
        
263
466
        self.busname = domain + '.Mandos'
264
467
        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,
269
 
                                          dbus_interface
270
 
                                          = server_interface)
271
 
        try:
272
 
            mandos_clients = (self.mandos_serv
273
 
                              .GetAllClientsWithProperties())
274
 
        except dbus.exceptions.DBusException:
275
 
            mandos_clients = dbus.Dictionary()
276
 
        
277
 
        (self.mandos_serv
278
 
         .connect_to_signal("ClientRemoved",
279
 
                            self.find_and_remove_client,
280
 
                            dbus_interface=server_interface,
281
 
                            byte_arrays=True))
282
 
        (self.mandos_serv
283
 
         .connect_to_signal("ClientAdded",
284
 
                            self.add_new_client,
285
 
                            dbus_interface=server_interface,
286
 
                            byte_arrays=True))
287
 
        for path, client in (mandos_clients.iteritems()):
288
 
            client_proxy_object = self.bus.get_object(self.busname,
289
 
                                                      path)
290
 
            self.add_client(MandosClientWidget(server_proxy_object
291
 
                                               =self.mandos_serv,
292
 
                                               proxy_object
293
 
                                               =client_proxy_object,
294
 
                                               properties=client,
295
 
                                               update_hook
296
 
                                               =self.refresh,
297
 
                                               delete_hook
298
 
                                               =self.remove_client),
299
 
                            path=path)
 
468
    
 
469
    def client_not_found(self, fingerprint, address):
 
470
        self.log_message("Client with address {0} and fingerprint"
 
471
                         " {1} could not be found"
 
472
                         .format(address, fingerprint))
 
473
    
 
474
    def rebuild(self):
 
475
        """This rebuilds the User Interface.
 
476
        Call this when the widget layout needs to change"""
 
477
        self.uilist = []
 
478
        #self.uilist.append(urwid.ListBox(self.clients))
 
479
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
480
                                                          clients),
 
481
                                       #header=urwid.Divider(),
 
482
                                       header=None,
 
483
                                       footer=
 
484
                                       urwid.Divider(div_char=
 
485
                                                     self.divider)))
 
486
        if self.log_visible:
 
487
            self.uilist.append(self.logbox)
 
488
        self.topwidget = urwid.Pile(self.uilist)
 
489
    
 
490
    def log_message(self, message):
 
491
        """Log message formatted with timestamp"""
 
492
        timestamp = datetime.datetime.now().isoformat()
 
493
        self.log_message_raw(timestamp + ": " + message)
 
494
    
 
495
    def log_message_raw(self, markup):
 
496
        """Add a log message to the log buffer."""
 
497
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
 
498
        if (self.max_log_length
 
499
            and len(self.log) > self.max_log_length):
 
500
            del self.log[0:len(self.log)-self.max_log_length-1]
 
501
        self.logbox.set_focus(len(self.logbox.body.contents),
 
502
                              coming_from="above")
 
503
        self.refresh()
 
504
    
 
505
    def toggle_log_display(self):
 
506
        """Toggle visibility of the log buffer."""
 
507
        self.log_visible = not self.log_visible
 
508
        self.rebuild()
 
509
        #self.log_message("Log visibility changed to: "
 
510
        #                 + str(self.log_visible))
 
511
    
 
512
    def change_log_display(self):
 
513
        """Change type of log display.
 
514
        Currently, this toggles wrapping of text lines."""
 
515
        if self.log_wrap == "clip":
 
516
            self.log_wrap = "any"
 
517
        else:
 
518
            self.log_wrap = "clip"
 
519
        for textwidget in self.log:
 
520
            textwidget.set_wrap_mode(self.log_wrap)
 
521
        #self.log_message("Wrap mode: " + self.log_wrap)
300
522
    
301
523
    def find_and_remove_client(self, path, name):
302
 
        """Find an client from its object path and remove it.
 
524
        """Find a client by its object path and remove it.
303
525
        
304
526
        This is connected to the ClientRemoved signal from the
305
527
        Mandos server object."""
307
529
            client = self.clients_dict[path]
308
530
        except KeyError:
309
531
            # not found?
 
532
            self.log_message("Unknown client {0!r} ({1!r}) removed"
 
533
                             .format(name, path))
310
534
            return
311
 
        self.remove_client(client, path)
 
535
        client.delete()
312
536
    
313
 
    def add_new_client(self, path, properties):
 
537
    def add_new_client(self, path):
314
538
        client_proxy_object = self.bus.get_object(self.busname, path)
315
539
        self.add_client(MandosClientWidget(server_proxy_object
316
540
                                           =self.mandos_serv,
317
541
                                           proxy_object
318
542
                                           =client_proxy_object,
319
 
                                           properties=properties,
320
543
                                           update_hook
321
544
                                           =self.refresh,
322
545
                                           delete_hook
323
 
                                           =self.remove_client),
 
546
                                           =self.remove_client,
 
547
                                           logger
 
548
                                           =self.log_message),
324
549
                        path=path)
325
550
    
326
551
    def add_client(self, client, path=None):
328
553
        if path is None:
329
554
            path = client.proxy.object_path
330
555
        self.clients_dict[path] = client
331
 
        self.clients.sort(None, lambda c: c.properties[u"name"])
 
556
        self.clients.sort(key=lambda c: c.properties["Name"])
332
557
        self.refresh()
333
558
    
334
559
    def remove_client(self, client, path=None):
345
570
    
346
571
    def run(self):
347
572
        """Start the main loop and exit when it's done."""
 
573
        self.bus = dbus.SystemBus()
 
574
        mandos_dbus_objc = self.bus.get_object(
 
575
            self.busname, "/", follow_name_owner_changes=True)
 
576
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
577
                                          dbus_interface
 
578
                                          = server_interface)
 
579
        try:
 
580
            mandos_clients = (self.mandos_serv
 
581
                              .GetAllClientsWithProperties())
 
582
            if not mandos_clients:
 
583
                self.log_message_raw(("bold", "Note: Server has no clients."))
 
584
        except dbus.exceptions.DBusException:
 
585
            self.log_message_raw(("bold", "Note: No Mandos server running."))
 
586
            mandos_clients = dbus.Dictionary()
 
587
        
 
588
        (self.mandos_serv
 
589
         .connect_to_signal("ClientRemoved",
 
590
                            self.find_and_remove_client,
 
591
                            dbus_interface=server_interface,
 
592
                            byte_arrays=True))
 
593
        (self.mandos_serv
 
594
         .connect_to_signal("ClientAdded",
 
595
                            self.add_new_client,
 
596
                            dbus_interface=server_interface,
 
597
                            byte_arrays=True))
 
598
        (self.mandos_serv
 
599
         .connect_to_signal("ClientNotFound",
 
600
                            self.client_not_found,
 
601
                            dbus_interface=server_interface,
 
602
                            byte_arrays=True))
 
603
        for path, client in mandos_clients.items():
 
604
            client_proxy_object = self.bus.get_object(self.busname,
 
605
                                                      path)
 
606
            self.add_client(MandosClientWidget(server_proxy_object
 
607
                                               =self.mandos_serv,
 
608
                                               proxy_object
 
609
                                               =client_proxy_object,
 
610
                                               properties=client,
 
611
                                               update_hook
 
612
                                               =self.refresh,
 
613
                                               delete_hook
 
614
                                               =self.remove_client,
 
615
                                               logger
 
616
                                               =self.log_message),
 
617
                            path=path)
 
618
        
348
619
        self.refresh()
349
620
        self._input_callback_tag = (gobject.io_add_watch
350
621
                                    (sys.stdin.fileno(),
360
631
    
361
632
    def process_input(self, source, condition):
362
633
        keys = self.screen.get_input()
363
 
        translations = { u"j": u"down",
364
 
                         u"k": u"up",
 
634
        translations = { "ctrl n": "down",      # Emacs
 
635
                         "ctrl p": "up",        # Emacs
 
636
                         "ctrl v": "page down", # Emacs
 
637
                         "meta v": "page up",   # Emacs
 
638
                         " ": "page down",      # less
 
639
                         "f": "page down",      # less
 
640
                         "b": "page up",        # less
 
641
                         "j": "down",           # vi
 
642
                         "k": "up",             # vi
365
643
                         }
366
644
        for key in keys:
367
645
            try:
369
647
            except KeyError:    # :-)
370
648
                pass
371
649
            
372
 
            if key == u"q" or key == u"Q":
 
650
            if key == "q" or key == "Q":
373
651
                self.stop()
374
652
                break
375
 
            elif key == u"window resize":
 
653
            elif key == "window resize":
376
654
                self.size = self.screen.get_cols_rows()
377
655
                self.refresh()
378
 
            elif key == " ":
379
 
                self.refresh()
 
656
            elif key == "\f":  # Ctrl-L
 
657
                self.refresh()
 
658
            elif key == "l" or key == "D":
 
659
                self.toggle_log_display()
 
660
                self.refresh()
 
661
            elif key == "w" or key == "i":
 
662
                self.change_log_display()
 
663
                self.refresh()
 
664
            elif key == "?" or key == "f1" or key == "esc":
 
665
                if not self.log_visible:
 
666
                    self.log_visible = True
 
667
                    self.rebuild()
 
668
                self.log_message_raw(("bold",
 
669
                                      "  ".
 
670
                                      join(("q: Quit",
 
671
                                            "?: Help",
 
672
                                            "l: Log window toggle",
 
673
                                            "TAB: Switch window",
 
674
                                            "w: Wrap (log)"))))
 
675
                self.log_message_raw(("bold",
 
676
                                      "  "
 
677
                                      .join(("Clients:",
 
678
                                             "+: Enable",
 
679
                                             "-: Disable",
 
680
                                             "R: Remove",
 
681
                                             "s: Start new checker",
 
682
                                             "S: Stop checker",
 
683
                                             "C: Checker OK",
 
684
                                             "a: Approve",
 
685
                                             "d: Deny"))))
 
686
                self.refresh()
 
687
            elif key == "tab":
 
688
                if self.topwidget.get_focus() is self.logbox:
 
689
                    self.topwidget.set_focus(0)
 
690
                else:
 
691
                    self.topwidget.set_focus(self.logbox)
 
692
                self.refresh()
 
693
            #elif (key == "end" or key == "meta >" or key == "G"
 
694
            #      or key == ">"):
 
695
            #    pass            # xxx end-of-buffer
 
696
            #elif (key == "home" or key == "meta <" or key == "g"
 
697
            #      or key == "<"):
 
698
            #    pass            # xxx beginning-of-buffer
 
699
            #elif key == "ctrl e" or key == "$":
 
700
            #    pass            # xxx move-end-of-line
 
701
            #elif key == "ctrl a" or key == "^":
 
702
            #    pass            # xxx move-beginning-of-line
 
703
            #elif key == "ctrl b" or key == "meta (" or key == "h":
 
704
            #    pass            # xxx left
 
705
            #elif key == "ctrl f" or key == "meta )" or key == "l":
 
706
            #    pass            # xxx right
 
707
            #elif key == "a":
 
708
            #    pass            # scroll up log
 
709
            #elif key == "z":
 
710
            #    pass            # scroll down log
380
711
            elif self.topwidget.selectable():
381
712
                self.topwidget.keypress(self.size, key)
382
713
                self.refresh()
385
716
ui = UserInterface()
386
717
try:
387
718
    ui.run()
388
 
except:
 
719
except KeyboardInterrupt:
 
720
    ui.screen.stop()
 
721
except Exception as e:
 
722
    ui.log_message(str(e))
389
723
    ui.screen.stop()
390
724
    raise