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  • Committer: Teddy Hogeborn
  • Date: 2010-09-25 16:53:58 UTC
  • Revision ID: teddy@fukt.bsnet.se-20100925165358-6fvrfd4ws9am7dgf
* mandos-ctl: Bug fix: only show properties of specifies clients.

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1
 
#!/usr/bin/python3 -bbI
 
1
#!/usr/bin/python
2
2
# -*- mode: python; coding: utf-8 -*-
3
 
#
4
 
# Mandos Monitor - Control and monitor the Mandos server
5
 
#
6
 
# Copyright © 2009-2019 Teddy Hogeborn
7
 
# Copyright © 2009-2019 Björn Påhlsson
8
 
#
9
 
# This file is part of Mandos.
10
 
#
11
 
# Mandos is free software: you can redistribute it and/or modify it
12
 
# under the terms of the GNU General Public License as published by
13
 
# the Free Software Foundation, either version 3 of the License, or
14
 
# (at your option) any later version.
15
 
#
16
 
#     Mandos is distributed in the hope that it will be useful, but
17
 
#     WITHOUT ANY WARRANTY; without even the implied warranty of
18
 
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19
 
#     GNU General Public License for more details.
20
 
#
21
 
# You should have received a copy of the GNU General Public License
22
 
# along with Mandos.  If not, see <http://www.gnu.org/licenses/>.
23
 
#
24
 
# Contact the authors at <mandos@recompile.se>.
25
 
#
26
 
from __future__ import (division, absolute_import, print_function,
27
 
                        unicode_literals)
28
3
 
29
 
try:
30
 
    from future_builtins import *
31
 
except ImportError:
32
 
    pass
 
4
from __future__ import division, absolute_import, with_statement
33
5
 
34
6
import sys
35
 
import logging
36
7
import os
37
 
import warnings
 
8
import signal
 
9
 
38
10
import datetime
39
 
import locale
40
11
 
41
12
import urwid.curses_display
42
13
import urwid
43
14
 
44
15
from dbus.mainloop.glib import DBusGMainLoop
45
 
from gi.repository import GLib
 
16
import gobject
46
17
 
47
18
import dbus
48
19
 
49
 
if sys.version_info.major == 2:
50
 
    __metaclass__ = type
51
 
    str = unicode
52
 
    input = raw_input
53
 
 
54
 
# Show warnings by default
55
 
if not sys.warnoptions:
56
 
    warnings.simplefilter("default")
57
 
 
58
 
log = logging.getLogger(os.path.basename(sys.argv[0]))
59
 
logging.basicConfig(level="NOTSET", # Show all messages
60
 
                    format="%(message)s") # Show basic log messages
61
 
 
62
 
logging.captureWarnings(True)   # Show warnings via the logging system
63
 
 
64
 
locale.setlocale(locale.LC_ALL, "")
65
 
 
66
 
logging.getLogger("dbus.proxies").setLevel(logging.CRITICAL)
67
 
logging.getLogger("urwid").setLevel(logging.INFO)
 
20
import UserList
 
21
 
 
22
import locale
 
23
 
 
24
locale.setlocale(locale.LC_ALL, u'')
 
25
 
 
26
import logging
 
27
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
68
28
 
69
29
# Some useful constants
70
 
domain = "se.recompile"
71
 
server_interface = domain + ".Mandos"
72
 
client_interface = domain + ".Mandos.Client"
73
 
version = "1.8.17"
74
 
 
75
 
try:
76
 
    dbus.OBJECT_MANAGER_IFACE
77
 
except AttributeError:
78
 
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
79
 
 
 
30
domain = 'se.bsnet.fukt'
 
31
server_interface = domain + '.Mandos'
 
32
client_interface = domain + '.Mandos.Client'
 
33
version = "1.0.15"
 
34
 
 
35
# Always run in monochrome mode
 
36
urwid.curses_display.curses.has_colors = lambda : False
 
37
 
 
38
# Urwid doesn't support blinking, but we want it.  Since we have no
 
39
# use for underline on its own, we make underline also always blink.
 
40
urwid.curses_display.curses.A_UNDERLINE |= (
 
41
    urwid.curses_display.curses.A_BLINK)
80
42
 
81
43
def isoformat_to_datetime(iso):
82
44
    "Parse an ISO 8601 date string to a datetime.datetime()"
83
45
    if not iso:
84
46
        return None
85
 
    d, t = iso.split("T", 1)
86
 
    year, month, day = d.split("-", 2)
87
 
    hour, minute, second = t.split(":", 2)
 
47
    d, t = iso.split(u"T", 1)
 
48
    year, month, day = d.split(u"-", 2)
 
49
    hour, minute, second = t.split(u":", 2)
88
50
    second, fraction = divmod(float(second), 1)
89
51
    return datetime.datetime(int(year),
90
52
                             int(month),
91
53
                             int(day),
92
54
                             int(hour),
93
55
                             int(minute),
94
 
                             int(second),            # Whole seconds
95
 
                             int(fraction*1000000))  # Microseconds
96
 
 
97
 
 
98
 
class MandosClientPropertyCache:
 
56
                             int(second),           # Whole seconds
 
57
                             int(fraction*1000000)) # Microseconds
 
58
 
 
59
class MandosClientPropertyCache(object):
99
60
    """This wraps a Mandos Client D-Bus proxy object, caches the
100
61
    properties and calls a hook function when any of them are
101
62
    changed.
102
63
    """
103
 
    def __init__(self, proxy_object=None, properties=None, **kwargs):
104
 
        self.proxy = proxy_object  # Mandos Client proxy object
105
 
        self.properties = dict() if properties is None else properties
106
 
        self.property_changed_match = (
107
 
            self.proxy.connect_to_signal("PropertiesChanged",
108
 
                                         self.properties_changed,
109
 
                                         dbus.PROPERTIES_IFACE,
110
 
                                         byte_arrays=True))
111
 
 
112
 
        if properties is None:
113
 
            self.properties.update(self.proxy.GetAll(
114
 
                client_interface,
115
 
                dbus_interface=dbus.PROPERTIES_IFACE))
116
 
 
117
 
        super(MandosClientPropertyCache, self).__init__(**kwargs)
118
 
 
119
 
    def properties_changed(self, interface, properties, invalidated):
120
 
        """This is called whenever we get a PropertiesChanged signal
121
 
        It updates the changed properties in the "properties" dict.
 
64
    def __init__(self, proxy_object=None, *args, **kwargs):
 
65
        self.proxy = proxy_object # Mandos Client proxy object
 
66
        
 
67
        self.properties = dict()
 
68
        self.proxy.connect_to_signal(u"PropertyChanged",
 
69
                                     self.property_changed,
 
70
                                     client_interface,
 
71
                                     byte_arrays=True)
 
72
        
 
73
        self.properties.update(
 
74
            self.proxy.GetAll(client_interface,
 
75
                              dbus_interface = dbus.PROPERTIES_IFACE))
 
76
 
 
77
        #XXX This break good super behaviour!
 
78
#        super(MandosClientPropertyCache, self).__init__(
 
79
#            *args, **kwargs)
 
80
    
 
81
    def property_changed(self, property=None, value=None):
 
82
        """This is called whenever we get a PropertyChanged signal
 
83
        It updates the changed property in the "properties" dict.
122
84
        """
123
85
        # Update properties dict with new value
124
 
        if interface == client_interface:
125
 
            self.properties.update(properties)
126
 
 
127
 
    def delete(self):
128
 
        self.property_changed_match.remove()
 
86
        self.properties[property] = value
129
87
 
130
88
 
131
89
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
132
90
    """A Mandos Client which is visible on the screen.
133
91
    """
134
 
 
 
92
    
135
93
    def __init__(self, server_proxy_object=None, update_hook=None,
136
 
                 delete_hook=None, **kwargs):
 
94
                 delete_hook=None, logger=None, *args, **kwargs):
137
95
        # Called on update
138
96
        self.update_hook = update_hook
139
97
        # Called on delete
140
98
        self.delete_hook = delete_hook
141
99
        # Mandos Server proxy object
142
100
        self.server_proxy_object = server_proxy_object
143
 
 
 
101
        # Logger
 
102
        self.logger = logger
 
103
        
144
104
        self._update_timer_callback_tag = None
145
 
 
 
105
        self.last_checker_failed = False
 
106
        
146
107
        # The widget shown normally
147
 
        self._text_widget = urwid.Text("")
 
108
        self._text_widget = urwid.Text(u"")
148
109
        # The widget shown when we have focus
149
 
        self._focus_text_widget = urwid.Text("")
150
 
        super(MandosClientWidget, self).__init__(**kwargs)
 
110
        self._focus_text_widget = urwid.Text(u"")
 
111
        super(MandosClientWidget, self).__init__(
 
112
            update_hook=update_hook, delete_hook=delete_hook,
 
113
            *args, **kwargs)
151
114
        self.update()
152
115
        self.opened = False
153
 
 
154
 
        self.match_objects = (
155
 
            self.proxy.connect_to_signal("CheckerCompleted",
156
 
                                         self.checker_completed,
157
 
                                         client_interface,
158
 
                                         byte_arrays=True),
159
 
            self.proxy.connect_to_signal("CheckerStarted",
160
 
                                         self.checker_started,
161
 
                                         client_interface,
162
 
                                         byte_arrays=True),
163
 
            self.proxy.connect_to_signal("GotSecret",
164
 
                                         self.got_secret,
165
 
                                         client_interface,
166
 
                                         byte_arrays=True),
167
 
            self.proxy.connect_to_signal("NeedApproval",
168
 
                                         self.need_approval,
169
 
                                         client_interface,
170
 
                                         byte_arrays=True),
171
 
            self.proxy.connect_to_signal("Rejected",
172
 
                                         self.rejected,
173
 
                                         client_interface,
174
 
                                         byte_arrays=True))
175
 
        log.debug("Created client %s", self.properties["Name"])
176
 
 
177
 
    def using_timer(self, flag):
178
 
        """Call this method with True or False when timer should be
179
 
        activated or deactivated.
180
 
        """
181
 
        if flag and self._update_timer_callback_tag is None:
182
 
            # Will update the shown timer value every second
183
 
            self._update_timer_callback_tag = (
184
 
                GLib.timeout_add(1000,
185
 
                                 glib_safely(self.update_timer)))
186
 
        elif not (flag or self._update_timer_callback_tag is None):
187
 
            GLib.source_remove(self._update_timer_callback_tag)
188
 
            self._update_timer_callback_tag = None
189
 
 
 
116
        self.proxy.connect_to_signal(u"CheckerCompleted",
 
117
                                     self.checker_completed,
 
118
                                     client_interface,
 
119
                                     byte_arrays=True)
 
120
        self.proxy.connect_to_signal(u"CheckerStarted",
 
121
                                     self.checker_started,
 
122
                                     client_interface,
 
123
                                     byte_arrays=True)
 
124
        self.proxy.connect_to_signal(u"GotSecret",
 
125
                                     self.got_secret,
 
126
                                     client_interface,
 
127
                                     byte_arrays=True)
 
128
        self.proxy.connect_to_signal(u"NeedApproval",
 
129
                                     self.need_approval,
 
130
                                     client_interface,
 
131
                                     byte_arrays=True)
 
132
        self.proxy.connect_to_signal(u"Rejected",
 
133
                                     self.rejected,
 
134
                                     client_interface,
 
135
                                     byte_arrays=True)
 
136
        last_checked_ok = isoformat_to_datetime(self.properties
 
137
                                                [u"LastCheckedOK"])
 
138
        if last_checked_ok is None:
 
139
            self.last_checker_failed = True
 
140
        else:
 
141
            self.last_checker_failed = ((datetime.datetime.utcnow()
 
142
                                         - last_checked_ok)
 
143
                                        > datetime.timedelta
 
144
                                        (milliseconds=
 
145
                                         self.properties
 
146
                                         [u"Interval"]))
 
147
        if self.last_checker_failed:
 
148
            self._update_timer_callback_tag = (gobject.timeout_add
 
149
                                               (1000,
 
150
                                                self.update_timer))
 
151
    
190
152
    def checker_completed(self, exitstatus, condition, command):
191
153
        if exitstatus == 0:
192
 
            log.debug('Checker for client %s (command "%s")'
193
 
                      " succeeded", self.properties["Name"], command)
 
154
            if self.last_checker_failed:
 
155
                self.last_checker_failed = False
 
156
                gobject.source_remove(self._update_timer_callback_tag)
 
157
                self._update_timer_callback_tag = None
 
158
            #self.logger(u'Checker for client %s (command "%s")'
 
159
            #            u' was successful'
 
160
            #            % (self.properties[u"Name"], command))
194
161
            self.update()
195
162
            return
196
163
        # Checker failed
 
164
        if not self.last_checker_failed:
 
165
            self.last_checker_failed = True
 
166
            self._update_timer_callback_tag = (gobject.timeout_add
 
167
                                               (1000,
 
168
                                                self.update_timer))
197
169
        if os.WIFEXITED(condition):
198
 
            log.info('Checker for client %s (command "%s") failed'
199
 
                     " with exit code %d", self.properties["Name"],
200
 
                     command, os.WEXITSTATUS(condition))
 
170
            self.logger(u'Checker for client %s (command "%s")'
 
171
                        u' failed with exit code %s'
 
172
                        % (self.properties[u"Name"], command,
 
173
                           os.WEXITSTATUS(condition)))
201
174
        elif os.WIFSIGNALED(condition):
202
 
            log.info('Checker for client %s (command "%s") was'
203
 
                     " killed by signal %d", self.properties["Name"],
204
 
                     command, os.WTERMSIG(condition))
 
175
            self.logger(u'Checker for client %s (command "%s")'
 
176
                        u' was killed by signal %s'
 
177
                        % (self.properties[u"Name"], command,
 
178
                           os.WTERMSIG(condition)))
 
179
        elif os.WCOREDUMP(condition):
 
180
            self.logger(u'Checker for client %s (command "%s")'
 
181
                        u' dumped core'
 
182
                        % (self.properties[u"Name"], command))
 
183
        else:
 
184
            self.logger(u'Checker for client %s completed'
 
185
                        u' mysteriously')
205
186
        self.update()
206
 
 
 
187
    
207
188
    def checker_started(self, command):
208
 
        """Server signals that a checker started."""
209
 
        log.debug('Client %s started checker "%s"',
210
 
                  self.properties["Name"], command)
211
 
 
 
189
        #self.logger(u'Client %s started checker "%s"'
 
190
        #            % (self.properties[u"Name"], unicode(command)))
 
191
        pass
 
192
    
212
193
    def got_secret(self):
213
 
        log.info("Client %s received its secret",
214
 
                 self.properties["Name"])
215
 
 
 
194
        self.last_checker_failed = False
 
195
        self.logger(u'Client %s received its secret'
 
196
                    % self.properties[u"Name"])
 
197
    
216
198
    def need_approval(self, timeout, default):
217
199
        if not default:
218
 
            message = "Client %s needs approval within %f seconds"
 
200
            message = u'Client %s needs approval within %s seconds'
219
201
        else:
220
 
            message = "Client %s will get its secret in %f seconds"
221
 
        log.info(message, self.properties["Name"], timeout/1000)
222
 
 
 
202
            message = u'Client %s will get its secret in %s seconds'
 
203
        self.logger(message
 
204
                    % (self.properties[u"Name"], timeout/1000))
 
205
    
223
206
    def rejected(self, reason):
224
 
        log.info("Client %s was rejected; reason: %s",
225
 
                 self.properties["Name"], reason)
226
 
 
 
207
        self.logger(u'Client %s was rejected; reason: %s'
 
208
                    % (self.properties[u"Name"], reason))
 
209
    
227
210
    def selectable(self):
228
211
        """Make this a "selectable" widget.
229
212
        This overrides the method from urwid.FlowWidget."""
230
213
        return True
231
 
 
232
 
    def rows(self, maxcolrow, focus=False):
 
214
    
 
215
    def rows(self, (maxcol,), focus=False):
233
216
        """How many rows this widget will occupy might depend on
234
217
        whether we have focus or not.
235
218
        This overrides the method from urwid.FlowWidget"""
236
 
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
237
 
 
 
219
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
220
    
238
221
    def current_widget(self, focus=False):
239
222
        if focus or self.opened:
240
223
            return self._focus_widget
241
224
        return self._widget
242
 
 
 
225
    
243
226
    def update(self):
244
227
        "Called when what is visible on the screen should be updated."
245
228
        # How to add standout mode to a style
246
 
        with_standout = {"normal": "standout",
247
 
                         "bold": "bold-standout",
248
 
                         "underline-blink":
249
 
                         "underline-blink-standout",
250
 
                         "bold-underline-blink":
251
 
                         "bold-underline-blink-standout",
252
 
                         }
 
229
        with_standout = { u"normal": u"standout",
 
230
                          u"bold": u"bold-standout",
 
231
                          u"underline-blink":
 
232
                              u"underline-blink-standout",
 
233
                          u"bold-underline-blink":
 
234
                              u"bold-underline-blink-standout",
 
235
                          }
253
236
 
254
237
        # Rebuild focus and non-focus widgets using current properties
255
238
 
256
239
        # Base part of a client. Name!
257
 
        base = "{name}: ".format(name=self.properties["Name"])
258
 
        if not self.properties["Enabled"]:
259
 
            message = "DISABLED"
260
 
            self.using_timer(False)
261
 
        elif self.properties["ApprovalPending"]:
262
 
            timeout = datetime.timedelta(
263
 
                milliseconds=self.properties["ApprovalDelay"])
264
 
            last_approval_request = isoformat_to_datetime(
265
 
                self.properties["LastApprovalRequest"])
266
 
            if last_approval_request is not None:
267
 
                timer = max(timeout - (datetime.datetime.utcnow()
268
 
                                       - last_approval_request),
269
 
                            datetime.timedelta())
270
 
            else:
271
 
                timer = datetime.timedelta()
272
 
            if self.properties["ApprovedByDefault"]:
273
 
                message = "Approval in {}. (d)eny?"
274
 
            else:
275
 
                message = "Denial in {}. (a)pprove?"
276
 
            message = message.format(str(timer).rsplit(".", 1)[0])
277
 
            self.using_timer(True)
278
 
        elif self.properties["LastCheckerStatus"] != 0:
279
 
            # When checker has failed, show timer until client expires
280
 
            expires = self.properties["Expires"]
281
 
            if expires == "":
282
 
                timer = datetime.timedelta(0)
283
 
            else:
284
 
                expires = (datetime.datetime.strptime
285
 
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
286
 
                timer = max(expires - datetime.datetime.utcnow(),
287
 
                            datetime.timedelta())
288
 
            message = ("A checker has failed! Time until client"
289
 
                       " gets disabled: {}"
290
 
                       .format(str(timer).rsplit(".", 1)[0]))
291
 
            self.using_timer(True)
 
240
        base = (u'%(name)s: '
 
241
                      % {u"name": self.properties[u"Name"]})
 
242
        if not self.properties[u"Enabled"]:
 
243
            message = u"DISABLED"
 
244
        elif self.properties[u"ApprovalPending"]:
 
245
            if self.properties[u"ApprovedByDefault"]:
 
246
                message = u"Connection established to client. (d)eny?"
 
247
            else:
 
248
                message = u"Seeks approval to send secret. (a)pprove?"
 
249
        elif self.last_checker_failed:
 
250
            timeout = datetime.timedelta(milliseconds
 
251
                                         = self.properties
 
252
                                         [u"Timeout"])
 
253
            last_ok = isoformat_to_datetime(
 
254
                max((self.properties[u"LastCheckedOK"]
 
255
                     or self.properties[u"Created"]),
 
256
                    self.properties[u"LastEnabled"]))
 
257
            timer = timeout - (datetime.datetime.utcnow() - last_ok)
 
258
            message = (u'A checker has failed! Time until client'
 
259
                       u' gets diabled: %s'
 
260
                           % unicode(timer).rsplit(".", 1)[0])
292
261
        else:
293
 
            message = "enabled"
294
 
            self.using_timer(False)
295
 
        self._text = "{}{}".format(base, message)
296
 
 
 
262
            message = u"enabled"
 
263
        self._text = "%s%s" % (base, message)
 
264
            
297
265
        if not urwid.supports_unicode():
298
266
            self._text = self._text.encode("ascii", "replace")
299
 
        textlist = [("normal", self._text)]
 
267
        textlist = [(u"normal", self._text)]
300
268
        self._text_widget.set_text(textlist)
301
269
        self._focus_text_widget.set_text([(with_standout[text[0]],
302
270
                                           text[1])
309
277
        # Run update hook, if any
310
278
        if self.update_hook is not None:
311
279
            self.update_hook()
312
 
 
 
280
    
313
281
    def update_timer(self):
314
 
        """called by GLib. Will indefinitely loop until
315
 
        GLib.source_remove() on tag is called
316
 
        """
 
282
        "called by gobject"
317
283
        self.update()
318
284
        return True             # Keep calling this
319
 
 
320
 
    def delete(self, **kwargs):
 
285
    
 
286
    def delete(self):
321
287
        if self._update_timer_callback_tag is not None:
322
 
            GLib.source_remove(self._update_timer_callback_tag)
 
288
            gobject.source_remove(self._update_timer_callback_tag)
323
289
            self._update_timer_callback_tag = None
324
 
        for match in self.match_objects:
325
 
            match.remove()
326
 
        self.match_objects = ()
327
290
        if self.delete_hook is not None:
328
291
            self.delete_hook(self)
329
 
        return super(MandosClientWidget, self).delete(**kwargs)
330
 
 
331
 
    def render(self, maxcolrow, focus=False):
 
292
    
 
293
    def render(self, (maxcol,), focus=False):
332
294
        """Render differently if we have focus.
333
295
        This overrides the method from urwid.FlowWidget"""
334
 
        return self.current_widget(focus).render(maxcolrow,
 
296
        return self.current_widget(focus).render((maxcol,),
335
297
                                                 focus=focus)
336
 
 
337
 
    def keypress(self, maxcolrow, key):
 
298
    
 
299
    def keypress(self, (maxcol,), key):
338
300
        """Handle keys.
339
301
        This overrides the method from urwid.FlowWidget"""
340
 
        if key == "+":
341
 
            self.proxy.Set(client_interface, "Enabled",
342
 
                           dbus.Boolean(True), ignore_reply=True,
343
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
344
 
        elif key == "-":
345
 
            self.proxy.Set(client_interface, "Enabled", False,
346
 
                           ignore_reply=True,
347
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
348
 
        elif key == "a":
 
302
        if key == u"+":
 
303
            self.proxy.Enable(dbus_interface = client_interface)
 
304
        elif key == u"-":
 
305
            self.proxy.Disable(dbus_interface = client_interface)
 
306
        elif key == u"a":
349
307
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
350
 
                               dbus_interface=client_interface,
351
 
                               ignore_reply=True)
352
 
        elif key == "d":
 
308
                               dbus_interface = client_interface)
 
309
        elif key == u"d":
353
310
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
354
 
                               dbus_interface=client_interface,
355
 
                               ignore_reply=True)
356
 
        elif key == "R" or key == "_" or key == "ctrl k":
 
311
                                  dbus_interface = client_interface)
 
312
        elif key == u"r" or key == u"_" or key == u"ctrl k":
357
313
            self.server_proxy_object.RemoveClient(self.proxy
358
 
                                                  .object_path,
359
 
                                                  ignore_reply=True)
360
 
        elif key == "s":
361
 
            self.proxy.Set(client_interface, "CheckerRunning",
362
 
                           dbus.Boolean(True), ignore_reply=True,
363
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
364
 
        elif key == "S":
365
 
            self.proxy.Set(client_interface, "CheckerRunning",
366
 
                           dbus.Boolean(False), ignore_reply=True,
367
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
368
 
        elif key == "C":
369
 
            self.proxy.CheckedOK(dbus_interface=client_interface,
370
 
                                 ignore_reply=True)
 
314
                                                  .object_path)
 
315
        elif key == u"s":
 
316
            self.proxy.StartChecker(dbus_interface = client_interface)
 
317
        elif key == u"S":
 
318
            self.proxy.StopChecker(dbus_interface = client_interface)
 
319
        elif key == u"C":
 
320
            self.proxy.CheckedOK(dbus_interface = client_interface)
371
321
        # xxx
372
 
#         elif key == "p" or key == "=":
 
322
#         elif key == u"p" or key == "=":
373
323
#             self.proxy.pause()
374
 
#         elif key == "u" or key == ":":
 
324
#         elif key == u"u" or key == ":":
375
325
#             self.proxy.unpause()
376
 
#         elif key == "RET":
 
326
#         elif key == u"RET":
377
327
#             self.open()
378
328
        else:
379
329
            return key
380
 
 
381
 
    def properties_changed(self, interface, properties, invalidated):
382
 
        """Call self.update() if any properties changed.
 
330
    
 
331
    def property_changed(self, property=None, value=None,
 
332
                         *args, **kwargs):
 
333
        """Call self.update() if old value is not new value.
383
334
        This overrides the method from MandosClientPropertyCache"""
384
 
        old_values = {key: self.properties.get(key)
385
 
                      for key in properties.keys()}
386
 
        super(MandosClientWidget, self).properties_changed(
387
 
            interface, properties, invalidated)
388
 
        if any(old_values[key] != self.properties.get(key)
389
 
               for key in old_values):
 
335
        property_name = unicode(property)
 
336
        old_value = self.properties.get(property_name)
 
337
        super(MandosClientWidget, self).property_changed(
 
338
            property=property, value=value, *args, **kwargs)
 
339
        if self.properties.get(property_name) != old_value:
390
340
            self.update()
391
341
 
392
342
 
393
 
def glib_safely(func, retval=True):
394
 
    def safe_func(*args, **kwargs):
395
 
        try:
396
 
            return func(*args, **kwargs)
397
 
        except Exception:
398
 
            log.exception("")
399
 
            return retval
400
 
    return safe_func
401
 
 
402
 
 
403
343
class ConstrainedListBox(urwid.ListBox):
404
344
    """Like a normal urwid.ListBox, but will consume all "up" or
405
345
    "down" key presses, thus not allowing any containing widgets to
406
346
    use them as an excuse to shift focus away from this widget.
407
347
    """
408
 
    def keypress(self, *args, **kwargs):
409
 
        ret = (super(ConstrainedListBox, self)
410
 
               .keypress(*args, **kwargs))
411
 
        if ret in ("up", "down"):
 
348
    def keypress(self, (maxcol, maxrow), key):
 
349
        ret = super(ConstrainedListBox, self).keypress((maxcol,
 
350
                                                        maxrow), key)
 
351
        if ret in (u"up", u"down"):
412
352
            return
413
353
        return ret
414
354
 
415
355
 
416
 
class UserInterface:
 
356
class UserInterface(object):
417
357
    """This is the entire user interface - the whole screen
418
358
    with boxes, lists of client widgets, etc.
419
359
    """
420
360
    def __init__(self, max_log_length=1000):
421
361
        DBusGMainLoop(set_as_default=True)
422
 
 
 
362
        
423
363
        self.screen = urwid.curses_display.Screen()
424
 
 
 
364
        
425
365
        self.screen.register_palette((
426
 
                ("normal",
427
 
                 "default", "default", None),
428
 
                ("bold",
429
 
                 "bold", "default", "bold"),
430
 
                ("underline-blink",
431
 
                 "underline,blink", "default", "underline,blink"),
432
 
                ("standout",
433
 
                 "standout", "default", "standout"),
434
 
                ("bold-underline-blink",
435
 
                 "bold,underline,blink", "default",
436
 
                 "bold,underline,blink"),
437
 
                ("bold-standout",
438
 
                 "bold,standout", "default", "bold,standout"),
439
 
                ("underline-blink-standout",
440
 
                 "underline,blink,standout", "default",
441
 
                 "underline,blink,standout"),
442
 
                ("bold-underline-blink-standout",
443
 
                 "bold,underline,blink,standout", "default",
444
 
                 "bold,underline,blink,standout"),
 
366
                (u"normal",
 
367
                 u"default", u"default", None),
 
368
                (u"bold",
 
369
                 u"default", u"default", u"bold"),
 
370
                (u"underline-blink",
 
371
                 u"default", u"default", u"underline"),
 
372
                (u"standout",
 
373
                 u"default", u"default", u"standout"),
 
374
                (u"bold-underline-blink",
 
375
                 u"default", u"default", (u"bold", u"underline")),
 
376
                (u"bold-standout",
 
377
                 u"default", u"default", (u"bold", u"standout")),
 
378
                (u"underline-blink-standout",
 
379
                 u"default", u"default", (u"underline", u"standout")),
 
380
                (u"bold-underline-blink-standout",
 
381
                 u"default", u"default", (u"bold", u"underline",
 
382
                                          u"standout")),
445
383
                ))
446
 
 
 
384
        
447
385
        if urwid.supports_unicode():
448
 
            self.divider = "─"  # \u2500
 
386
            self.divider = u"─" # \u2500
 
387
            #self.divider = u"━" # \u2501
449
388
        else:
450
 
            self.divider = "_"  # \u005f
451
 
 
 
389
            #self.divider = u"-" # \u002d
 
390
            self.divider = u"_" # \u005f
 
391
        
452
392
        self.screen.start()
453
 
 
 
393
        
454
394
        self.size = self.screen.get_cols_rows()
455
 
 
 
395
        
456
396
        self.clients = urwid.SimpleListWalker([])
457
397
        self.clients_dict = {}
458
 
 
 
398
        
459
399
        # We will add Text widgets to this list
460
 
        self.log = urwid.SimpleListWalker([])
 
400
        self.log = []
461
401
        self.max_log_length = max_log_length
462
 
 
 
402
        
463
403
        # We keep a reference to the log widget so we can remove it
464
404
        # from the ListWalker without it getting destroyed
465
405
        self.logbox = ConstrainedListBox(self.log)
466
 
 
 
406
        
467
407
        # This keeps track of whether self.uilist currently has
468
408
        # self.logbox in it or not
469
409
        self.log_visible = True
470
 
        self.log_wrap = "any"
471
 
 
472
 
        self.loghandler = UILogHandler(self)
473
 
 
 
410
        self.log_wrap = u"any"
 
411
        
474
412
        self.rebuild()
475
 
        self.add_log_line(("bold",
476
 
                           "Mandos Monitor version " + version))
477
 
        self.add_log_line(("bold", "q: Quit  ?: Help"))
478
 
 
479
 
        self.busname = domain + ".Mandos"
480
 
        self.main_loop = GLib.MainLoop()
481
 
 
482
 
    def client_not_found(self, key_id, address):
483
 
        log.info("Client with address %s and key ID %s could"
484
 
                 " not be found", address, key_id)
485
 
 
 
413
        self.log_message_raw((u"bold",
 
414
                              u"Mandos Monitor version " + version))
 
415
        self.log_message_raw((u"bold",
 
416
                              u"q: Quit  ?: Help"))
 
417
        
 
418
        self.busname = domain + '.Mandos'
 
419
        self.main_loop = gobject.MainLoop()
 
420
        self.bus = dbus.SystemBus()
 
421
        mandos_dbus_objc = self.bus.get_object(
 
422
            self.busname, u"/", follow_name_owner_changes=True)
 
423
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
424
                                          dbus_interface
 
425
                                          = server_interface)
 
426
        try:
 
427
            mandos_clients = (self.mandos_serv
 
428
                              .GetAllClientsWithProperties())
 
429
        except dbus.exceptions.DBusException:
 
430
            mandos_clients = dbus.Dictionary()
 
431
        
 
432
        (self.mandos_serv
 
433
         .connect_to_signal(u"ClientRemoved",
 
434
                            self.find_and_remove_client,
 
435
                            dbus_interface=server_interface,
 
436
                            byte_arrays=True))
 
437
        (self.mandos_serv
 
438
         .connect_to_signal(u"ClientAdded",
 
439
                            self.add_new_client,
 
440
                            dbus_interface=server_interface,
 
441
                            byte_arrays=True))
 
442
        (self.mandos_serv
 
443
         .connect_to_signal(u"ClientNotFound",
 
444
                            self.client_not_found,
 
445
                            dbus_interface=server_interface,
 
446
                            byte_arrays=True))
 
447
        for path, client in mandos_clients.iteritems():
 
448
            client_proxy_object = self.bus.get_object(self.busname,
 
449
                                                      path)
 
450
            self.add_client(MandosClientWidget(server_proxy_object
 
451
                                               =self.mandos_serv,
 
452
                                               proxy_object
 
453
                                               =client_proxy_object,
 
454
                                               properties=client,
 
455
                                               update_hook
 
456
                                               =self.refresh,
 
457
                                               delete_hook
 
458
                                               =self.remove_client,
 
459
                                               logger
 
460
                                               =self.log_message),
 
461
                            path=path)
 
462
    
 
463
    def client_not_found(self, fingerprint, address):
 
464
        self.log_message((u"Client with address %s and fingerprint %s"
 
465
                          u" could not be found" % (address,
 
466
                                                    fingerprint)))
 
467
    
486
468
    def rebuild(self):
487
469
        """This rebuilds the User Interface.
488
470
        Call this when the widget layout needs to change"""
489
471
        self.uilist = []
490
 
        # self.uilist.append(urwid.ListBox(self.clients))
 
472
        #self.uilist.append(urwid.ListBox(self.clients))
491
473
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
492
474
                                                          clients),
493
 
                                       # header=urwid.Divider(),
 
475
                                       #header=urwid.Divider(),
494
476
                                       header=None,
495
 
                                       footer=urwid.Divider(
496
 
                                           div_char=self.divider)))
 
477
                                       footer=
 
478
                                       urwid.Divider(div_char=
 
479
                                                     self.divider)))
497
480
        if self.log_visible:
498
481
            self.uilist.append(self.logbox)
 
482
            pass
499
483
        self.topwidget = urwid.Pile(self.uilist)
500
 
 
501
 
    def add_log_line(self, markup):
 
484
    
 
485
    def log_message(self, message):
 
486
        timestamp = datetime.datetime.now().isoformat()
 
487
        self.log_message_raw(timestamp + u": " + message)
 
488
    
 
489
    def log_message_raw(self, markup):
 
490
        """Add a log message to the log buffer."""
502
491
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
503
 
        if self.max_log_length:
504
 
            if len(self.log) > self.max_log_length:
505
 
                del self.log[0:(len(self.log) - self.max_log_length)]
506
 
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
507
 
                              coming_from="above")
 
492
        if (self.max_log_length
 
493
            and len(self.log) > self.max_log_length):
 
494
            del self.log[0:len(self.log)-self.max_log_length-1]
 
495
        self.logbox.set_focus(len(self.logbox.body.contents),
 
496
                              coming_from=u"above")
508
497
        self.refresh()
509
 
 
 
498
    
510
499
    def toggle_log_display(self):
511
500
        """Toggle visibility of the log buffer."""
512
501
        self.log_visible = not self.log_visible
513
502
        self.rebuild()
514
 
        log.debug("Log visibility changed to: %s", self.log_visible)
515
 
 
 
503
        #self.log_message(u"Log visibility changed to: "
 
504
        #                 + unicode(self.log_visible))
 
505
    
516
506
    def change_log_display(self):
517
507
        """Change type of log display.
518
508
        Currently, this toggles wrapping of text lines."""
519
 
        if self.log_wrap == "clip":
520
 
            self.log_wrap = "any"
 
509
        if self.log_wrap == u"clip":
 
510
            self.log_wrap = u"any"
521
511
        else:
522
 
            self.log_wrap = "clip"
 
512
            self.log_wrap = u"clip"
523
513
        for textwidget in self.log:
524
514
            textwidget.set_wrap_mode(self.log_wrap)
525
 
        log.debug("Wrap mode: %s", self.log_wrap)
526
 
 
527
 
    def find_and_remove_client(self, path, interfaces):
528
 
        """Find a client by its object path and remove it.
529
 
 
530
 
        This is connected to the InterfacesRemoved signal from the
 
515
        #self.log_message(u"Wrap mode: " + self.log_wrap)
 
516
    
 
517
    def find_and_remove_client(self, path, name):
 
518
        """Find an client from its object path and remove it.
 
519
        
 
520
        This is connected to the ClientRemoved signal from the
531
521
        Mandos server object."""
532
 
        if client_interface not in interfaces:
533
 
            # Not a Mandos client object; ignore
534
 
            return
535
522
        try:
536
523
            client = self.clients_dict[path]
537
524
        except KeyError:
538
525
            # not found?
539
 
            log.warning("Unknown client %s removed", path)
540
 
            return
541
 
        client.delete()
542
 
 
543
 
    def add_new_client(self, path, ifs_and_props):
544
 
        """Find a client by its object path and remove it.
545
 
 
546
 
        This is connected to the InterfacesAdded signal from the
547
 
        Mandos server object.
548
 
        """
549
 
        if client_interface not in ifs_and_props:
550
 
            # Not a Mandos client object; ignore
551
 
            return
 
526
            return
 
527
        self.remove_client(client, path)
 
528
    
 
529
    def add_new_client(self, path):
552
530
        client_proxy_object = self.bus.get_object(self.busname, path)
553
 
        self.add_client(MandosClientWidget(
554
 
            server_proxy_object=self.mandos_serv,
555
 
            proxy_object=client_proxy_object,
556
 
            update_hook=self.refresh,
557
 
            delete_hook=self.remove_client,
558
 
            properties=dict(ifs_and_props[client_interface])),
 
531
        self.add_client(MandosClientWidget(server_proxy_object
 
532
                                           =self.mandos_serv,
 
533
                                           proxy_object
 
534
                                           =client_proxy_object,
 
535
                                           update_hook
 
536
                                           =self.refresh,
 
537
                                           delete_hook
 
538
                                           =self.remove_client,
 
539
                                           logger
 
540
                                           =self.log_message),
559
541
                        path=path)
560
 
 
 
542
    
561
543
    def add_client(self, client, path=None):
562
544
        self.clients.append(client)
563
545
        if path is None:
564
546
            path = client.proxy.object_path
565
547
        self.clients_dict[path] = client
566
 
        self.clients.sort(key=lambda c: c.properties["Name"])
 
548
        self.clients.sort(None, lambda c: c.properties[u"Name"])
567
549
        self.refresh()
568
 
 
 
550
    
569
551
    def remove_client(self, client, path=None):
570
552
        self.clients.remove(client)
571
553
        if path is None:
572
554
            path = client.proxy.object_path
573
555
        del self.clients_dict[path]
 
556
        if not self.clients_dict:
 
557
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
558
            # is completely emptied, we need to recreate it.
 
559
            self.clients = urwid.SimpleListWalker([])
 
560
            self.rebuild()
574
561
        self.refresh()
575
 
 
 
562
    
576
563
    def refresh(self):
577
564
        """Redraw the screen"""
578
565
        canvas = self.topwidget.render(self.size, focus=True)
579
566
        self.screen.draw_screen(self.size, canvas)
580
 
 
 
567
    
581
568
    def run(self):
582
569
        """Start the main loop and exit when it's done."""
583
 
        log.addHandler(self.loghandler)
584
 
        self.orig_log_propagate = log.propagate
585
 
        log.propagate = False
586
 
        self.orig_log_level = log.level
587
 
        log.setLevel("INFO")
588
 
        self.bus = dbus.SystemBus()
589
 
        mandos_dbus_objc = self.bus.get_object(
590
 
            self.busname, "/", follow_name_owner_changes=True)
591
 
        self.mandos_serv = dbus.Interface(
592
 
            mandos_dbus_objc, dbus_interface=server_interface)
593
 
        try:
594
 
            mandos_clients = (self.mandos_serv
595
 
                              .GetAllClientsWithProperties())
596
 
            if not mandos_clients:
597
 
                log.warning("Note: Server has no clients.")
598
 
        except dbus.exceptions.DBusException:
599
 
            log.warning("Note: No Mandos server running.")
600
 
            mandos_clients = dbus.Dictionary()
601
 
 
602
 
        (self.mandos_serv
603
 
         .connect_to_signal("InterfacesRemoved",
604
 
                            self.find_and_remove_client,
605
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
606
 
                            byte_arrays=True))
607
 
        (self.mandos_serv
608
 
         .connect_to_signal("InterfacesAdded",
609
 
                            self.add_new_client,
610
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
611
 
                            byte_arrays=True))
612
 
        (self.mandos_serv
613
 
         .connect_to_signal("ClientNotFound",
614
 
                            self.client_not_found,
615
 
                            dbus_interface=server_interface,
616
 
                            byte_arrays=True))
617
 
        for path, client in mandos_clients.items():
618
 
            client_proxy_object = self.bus.get_object(self.busname,
619
 
                                                      path)
620
 
            self.add_client(MandosClientWidget(
621
 
                server_proxy_object=self.mandos_serv,
622
 
                proxy_object=client_proxy_object,
623
 
                properties=client,
624
 
                update_hook=self.refresh,
625
 
                delete_hook=self.remove_client),
626
 
                            path=path)
627
 
 
628
570
        self.refresh()
629
 
        self._input_callback_tag = (
630
 
            GLib.io_add_watch(
631
 
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
632
 
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
633
 
                glib_safely(self.process_input)))
 
571
        self._input_callback_tag = (gobject.io_add_watch
 
572
                                    (sys.stdin.fileno(),
 
573
                                     gobject.IO_IN,
 
574
                                     self.process_input))
634
575
        self.main_loop.run()
635
576
        # Main loop has finished, we should close everything now
636
 
        GLib.source_remove(self._input_callback_tag)
637
 
        with warnings.catch_warnings():
638
 
            warnings.simplefilter("ignore", BytesWarning)
639
 
            self.screen.stop()
640
 
 
 
577
        gobject.source_remove(self._input_callback_tag)
 
578
        self.screen.stop()
 
579
    
641
580
    def stop(self):
642
581
        self.main_loop.quit()
643
 
        log.removeHandler(self.loghandler)
644
 
        log.propagate = self.orig_log_propagate
645
 
 
 
582
    
646
583
    def process_input(self, source, condition):
647
584
        keys = self.screen.get_input()
648
 
        translations = {"ctrl n": "down",       # Emacs
649
 
                        "ctrl p": "up",         # Emacs
650
 
                        "ctrl v": "page down",  # Emacs
651
 
                        "meta v": "page up",    # Emacs
652
 
                        " ": "page down",       # less
653
 
                        "f": "page down",       # less
654
 
                        "b": "page up",         # less
655
 
                        "j": "down",            # vi
656
 
                        "k": "up",              # vi
657
 
                        }
 
585
        translations = { u"ctrl n": u"down",      # Emacs
 
586
                         u"ctrl p": u"up",        # Emacs
 
587
                         u"ctrl v": u"page down", # Emacs
 
588
                         u"meta v": u"page up",   # Emacs
 
589
                         u" ": u"page down",      # less
 
590
                         u"f": u"page down",      # less
 
591
                         u"b": u"page up",        # less
 
592
                         u"j": u"down",           # vi
 
593
                         u"k": u"up",             # vi
 
594
                         }
658
595
        for key in keys:
659
596
            try:
660
597
                key = translations[key]
661
598
            except KeyError:    # :-)
662
599
                pass
663
 
 
664
 
            if key == "q" or key == "Q":
 
600
            
 
601
            if key == u"q" or key == u"Q":
665
602
                self.stop()
666
603
                break
667
 
            elif key == "window resize":
 
604
            elif key == u"window resize":
668
605
                self.size = self.screen.get_cols_rows()
669
606
                self.refresh()
670
 
            elif key == "ctrl l":
671
 
                self.screen.clear()
 
607
            elif key == u"\f":  # Ctrl-L
672
608
                self.refresh()
673
 
            elif key == "l" or key == "D":
 
609
            elif key == u"l" or key == u"D":
674
610
                self.toggle_log_display()
675
611
                self.refresh()
676
 
            elif key == "w" or key == "i":
 
612
            elif key == u"w" or key == u"i":
677
613
                self.change_log_display()
678
614
                self.refresh()
679
 
            elif key == "?" or key == "f1" or key == "esc":
 
615
            elif key == u"?" or key == u"f1" or key == u"esc":
680
616
                if not self.log_visible:
681
617
                    self.log_visible = True
682
618
                    self.rebuild()
683
 
                self.add_log_line(("bold",
684
 
                                   "  ".join(("q: Quit",
685
 
                                              "?: Help",
686
 
                                              "l: Log window toggle",
687
 
                                              "TAB: Switch window",
688
 
                                              "w: Wrap (log lines)",
689
 
                                              "v: Toggle verbose log",
690
 
                                   ))))
691
 
                self.add_log_line(("bold",
692
 
                                   "  ".join(("Clients:",
693
 
                                              "+: Enable",
694
 
                                              "-: Disable",
695
 
                                              "R: Remove",
696
 
                                              "s: Start new checker",
697
 
                                              "S: Stop checker",
698
 
                                              "C: Checker OK",
699
 
                                              "a: Approve",
700
 
                                              "d: Deny",
701
 
                                   ))))
 
619
                self.log_message_raw((u"bold",
 
620
                                      u"  ".
 
621
                                      join((u"q: Quit",
 
622
                                            u"?: Help",
 
623
                                            u"l: Log window toggle",
 
624
                                            u"TAB: Switch window",
 
625
                                            u"w: Wrap (log)"))))
 
626
                self.log_message_raw((u"bold",
 
627
                                      u"  "
 
628
                                      .join((u"Clients:",
 
629
                                             u"+: Enable",
 
630
                                             u"-: Disable",
 
631
                                             u"r: Remove",
 
632
                                             u"s: Start new checker",
 
633
                                             u"S: Stop checker",
 
634
                                             u"C: Checker OK",
 
635
                                             u"a: Approve",
 
636
                                             u"d: Deny"))))
702
637
                self.refresh()
703
 
            elif key == "tab":
 
638
            elif key == u"tab":
704
639
                if self.topwidget.get_focus() is self.logbox:
705
640
                    self.topwidget.set_focus(0)
706
641
                else:
707
642
                    self.topwidget.set_focus(self.logbox)
708
643
                self.refresh()
709
 
            elif key == "v":
710
 
                if log.level < logging.INFO:
711
 
                    log.setLevel(logging.INFO)
712
 
                    log.info("Verbose mode: Off")
713
 
                else:
714
 
                    log.setLevel(logging.NOTSET)
715
 
                    log.info("Verbose mode: On")
716
 
            # elif (key == "end" or key == "meta >" or key == "G"
717
 
            #       or key == ">"):
718
 
            #     pass            # xxx end-of-buffer
719
 
            # elif (key == "home" or key == "meta <" or key == "g"
720
 
            #       or key == "<"):
721
 
            #     pass            # xxx beginning-of-buffer
722
 
            # elif key == "ctrl e" or key == "$":
723
 
            #     pass            # xxx move-end-of-line
724
 
            # elif key == "ctrl a" or key == "^":
725
 
            #     pass            # xxx move-beginning-of-line
726
 
            # elif key == "ctrl b" or key == "meta (" or key == "h":
727
 
            #     pass            # xxx left
728
 
            # elif key == "ctrl f" or key == "meta )" or key == "l":
729
 
            #     pass            # xxx right
730
 
            # elif key == "a":
731
 
            #     pass            # scroll up log
732
 
            # elif key == "z":
733
 
            #     pass            # scroll down log
 
644
            #elif (key == u"end" or key == u"meta >" or key == u"G"
 
645
            #      or key == u">"):
 
646
            #    pass            # xxx end-of-buffer
 
647
            #elif (key == u"home" or key == u"meta <" or key == u"g"
 
648
            #      or key == u"<"):
 
649
            #    pass            # xxx beginning-of-buffer
 
650
            #elif key == u"ctrl e" or key == u"$":
 
651
            #    pass            # xxx move-end-of-line
 
652
            #elif key == u"ctrl a" or key == u"^":
 
653
            #    pass            # xxx move-beginning-of-line
 
654
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
655
            #    pass            # xxx left
 
656
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
657
            #    pass            # xxx right
 
658
            #elif key == u"a":
 
659
            #    pass            # scroll up log
 
660
            #elif key == u"z":
 
661
            #    pass            # scroll down log
734
662
            elif self.topwidget.selectable():
735
663
                self.topwidget.keypress(self.size, key)
736
664
                self.refresh()
737
665
        return True
738
666
 
739
 
 
740
 
class UILogHandler(logging.Handler):
741
 
    def __init__(self, ui, *args, **kwargs):
742
 
        self.ui = ui
743
 
        super(UILogHandler, self).__init__(*args, **kwargs)
744
 
        self.setFormatter(
745
 
            logging.Formatter("%(asctime)s: %(message)s"))
746
 
    def emit(self, record):
747
 
        msg = self.format(record)
748
 
        if record.levelno > logging.INFO:
749
 
            msg = ("bold", msg)
750
 
        self.ui.add_log_line(msg)
751
 
 
752
 
 
753
667
ui = UserInterface()
754
668
try:
755
669
    ui.run()
756
670
except KeyboardInterrupt:
757
 
    with warnings.catch_warnings():
758
 
        warnings.filterwarnings("ignore", "", BytesWarning)
759
 
        ui.screen.stop()
760
 
except Exception:
761
 
    with warnings.catch_warnings():
762
 
        warnings.filterwarnings("ignore", "", BytesWarning)
763
 
        ui.screen.stop()
 
671
    ui.screen.stop()
 
672
except Exception, e:
 
673
    ui.log_message(unicode(e))
 
674
    ui.screen.stop()
764
675
    raise