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  • Committer: Björn Påhlsson
  • Date: 2010-09-07 20:22:16 UTC
  • mto: (237.4.3 mandos-release)
  • mto: This revision was merged to the branch mainline in revision 421.
  • Revision ID: belorn@fukt.bsnet.se-20100907202216-vypcn3nsd02mqz4s
mandos-monitor: removed milisecondsseconds from countdown.

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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
3
 
27
 
from __future__ import (division, absolute_import, print_function,
28
 
                        unicode_literals)
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
7
import os
36
 
import warnings
 
8
import signal
 
9
 
37
10
import datetime
38
 
import locale
39
 
import logging
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
 
 
53
 
log = logging.getLogger(os.path.basename(sys.argv[0]))
54
 
logging.basicConfig(level="NOTSET", # Show all messages
55
 
                    format="%(message)s") # Show basic log messages
56
 
 
57
 
logging.captureWarnings(True)   # Show warnings via the logging system
58
 
 
59
 
locale.setlocale(locale.LC_ALL, "")
60
 
 
61
 
logging.getLogger("dbus.proxies").setLevel(logging.CRITICAL)
 
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)
62
28
 
63
29
# Some useful constants
64
 
domain = "se.recompile"
65
 
server_interface = domain + ".Mandos"
66
 
client_interface = domain + ".Mandos.Client"
67
 
version = "1.8.13"
68
 
 
69
 
try:
70
 
    dbus.OBJECT_MANAGER_IFACE
71
 
except AttributeError:
72
 
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
73
 
 
 
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)
74
42
 
75
43
def isoformat_to_datetime(iso):
76
44
    "Parse an ISO 8601 date string to a datetime.datetime()"
77
45
    if not iso:
78
46
        return None
79
 
    d, t = iso.split("T", 1)
80
 
    year, month, day = d.split("-", 2)
81
 
    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)
82
50
    second, fraction = divmod(float(second), 1)
83
51
    return datetime.datetime(int(year),
84
52
                             int(month),
85
53
                             int(day),
86
54
                             int(hour),
87
55
                             int(minute),
88
 
                             int(second),            # Whole seconds
89
 
                             int(fraction*1000000))  # Microseconds
90
 
 
91
 
 
92
 
class MandosClientPropertyCache:
 
56
                             int(second),           # Whole seconds
 
57
                             int(fraction*1000000)) # Microseconds
 
58
 
 
59
class MandosClientPropertyCache(object):
93
60
    """This wraps a Mandos Client D-Bus proxy object, caches the
94
61
    properties and calls a hook function when any of them are
95
62
    changed.
96
63
    """
97
 
    def __init__(self, proxy_object=None, properties=None, **kwargs):
98
 
        self.proxy = proxy_object  # Mandos Client proxy object
99
 
        self.properties = dict() if properties is None else properties
100
 
        self.property_changed_match = (
101
 
            self.proxy.connect_to_signal("PropertiesChanged",
102
 
                                         self.properties_changed,
103
 
                                         dbus.PROPERTIES_IFACE,
104
 
                                         byte_arrays=True))
105
 
 
106
 
        if properties is None:
107
 
            self.properties.update(self.proxy.GetAll(
108
 
                client_interface,
109
 
                dbus_interface=dbus.PROPERTIES_IFACE))
110
 
 
111
 
        super(MandosClientPropertyCache, self).__init__(**kwargs)
112
 
 
113
 
    def properties_changed(self, interface, properties, invalidated):
114
 
        """This is called whenever we get a PropertiesChanged signal
115
 
        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.
116
84
        """
117
85
        # Update properties dict with new value
118
 
        if interface == client_interface:
119
 
            self.properties.update(properties)
120
 
 
121
 
    def delete(self):
122
 
        self.property_changed_match.remove()
 
86
        self.properties[property] = value
123
87
 
124
88
 
125
89
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
126
90
    """A Mandos Client which is visible on the screen.
127
91
    """
128
 
 
 
92
    
129
93
    def __init__(self, server_proxy_object=None, update_hook=None,
130
 
                 delete_hook=None, **kwargs):
 
94
                 delete_hook=None, logger=None, *args, **kwargs):
131
95
        # Called on update
132
96
        self.update_hook = update_hook
133
97
        # Called on delete
134
98
        self.delete_hook = delete_hook
135
99
        # Mandos Server proxy object
136
100
        self.server_proxy_object = server_proxy_object
137
 
 
 
101
        # Logger
 
102
        self.logger = logger
 
103
        
138
104
        self._update_timer_callback_tag = None
139
 
 
 
105
        self.last_checker_failed = False
 
106
        
140
107
        # The widget shown normally
141
 
        self._text_widget = urwid.Text("")
 
108
        self._text_widget = urwid.Text(u"")
142
109
        # The widget shown when we have focus
143
 
        self._focus_text_widget = urwid.Text("")
144
 
        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)
145
114
        self.update()
146
115
        self.opened = False
147
 
 
148
 
        self.match_objects = (
149
 
            self.proxy.connect_to_signal("CheckerCompleted",
150
 
                                         self.checker_completed,
151
 
                                         client_interface,
152
 
                                         byte_arrays=True),
153
 
            self.proxy.connect_to_signal("CheckerStarted",
154
 
                                         self.checker_started,
155
 
                                         client_interface,
156
 
                                         byte_arrays=True),
157
 
            self.proxy.connect_to_signal("GotSecret",
158
 
                                         self.got_secret,
159
 
                                         client_interface,
160
 
                                         byte_arrays=True),
161
 
            self.proxy.connect_to_signal("NeedApproval",
162
 
                                         self.need_approval,
163
 
                                         client_interface,
164
 
                                         byte_arrays=True),
165
 
            self.proxy.connect_to_signal("Rejected",
166
 
                                         self.rejected,
167
 
                                         client_interface,
168
 
                                         byte_arrays=True))
169
 
        log.debug("Created client %s", self.properties["Name"])
170
 
 
171
 
    def using_timer(self, flag):
172
 
        """Call this method with True or False when timer should be
173
 
        activated or deactivated.
174
 
        """
175
 
        if flag and self._update_timer_callback_tag is None:
176
 
            # Will update the shown timer value every second
177
 
            self._update_timer_callback_tag = (
178
 
                GLib.timeout_add(1000,
179
 
                                 glib_safely(self.update_timer)))
180
 
        elif not (flag or self._update_timer_callback_tag is None):
181
 
            GLib.source_remove(self._update_timer_callback_tag)
182
 
            self._update_timer_callback_tag = None
183
 
 
 
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
                                                ["last_checked_ok"])
 
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["interval"]))
 
146
        if self.last_checker_failed:
 
147
            self._update_timer_callback_tag = (gobject.timeout_add
 
148
                                               (1000,
 
149
                                                self.update_timer))
 
150
    
184
151
    def checker_completed(self, exitstatus, condition, command):
185
152
        if exitstatus == 0:
186
 
            log.debug('Checker for client %s (command "%s")'
187
 
                      " succeeded", self.properties["Name"], command)
 
153
            if self.last_checker_failed:
 
154
                self.last_checker_failed = False
 
155
                gobject.source_remove(self._update_timer_callback_tag)
 
156
                self._update_timer_callback_tag = None
 
157
            self.logger(u'Checker for client %s (command "%s")'
 
158
                        u' was successful'
 
159
                        % (self.properties[u"name"], command))
188
160
            self.update()
189
161
            return
190
162
        # Checker failed
 
163
        if not self.last_checker_failed:
 
164
            self.last_checker_failed = True
 
165
            self._update_timer_callback_tag = (gobject.timeout_add
 
166
                                               (1000,
 
167
                                                self.update_timer))
191
168
        if os.WIFEXITED(condition):
192
 
            log.info('Checker for client %s (command "%s") failed'
193
 
                     " with exit code %d", self.properties["Name"],
194
 
                     command, os.WEXITSTATUS(condition))
 
169
            self.logger(u'Checker for client %s (command "%s")'
 
170
                        u' failed with exit code %s'
 
171
                        % (self.properties[u"name"], command,
 
172
                           os.WEXITSTATUS(condition)))
195
173
        elif os.WIFSIGNALED(condition):
196
 
            log.info('Checker for client %s (command "%s") was'
197
 
                     " killed by signal %d", self.properties["Name"],
198
 
                     command, os.WTERMSIG(condition))
 
174
            self.logger(u'Checker for client %s (command "%s")'
 
175
                        u' was killed by signal %s'
 
176
                        % (self.properties[u"name"], command,
 
177
                           os.WTERMSIG(condition)))
 
178
        elif os.WCOREDUMP(condition):
 
179
            self.logger(u'Checker for client %s (command "%s")'
 
180
                        u' dumped core'
 
181
                        % (self.properties[u"name"], command))
 
182
        else:
 
183
            self.logger(u'Checker for client %s completed mysteriously')
199
184
        self.update()
200
 
 
 
185
    
201
186
    def checker_started(self, command):
202
 
        """Server signals that a checker started."""
203
 
        log.debug('Client %s started checker "%s"',
204
 
                  self.properties["Name"], command)
205
 
 
 
187
        #self.logger(u'Client %s started checker "%s"'
 
188
        #            % (self.properties[u"name"], unicode(command)))
 
189
        pass
 
190
    
206
191
    def got_secret(self):
207
 
        log.info("Client %s received its secret",
208
 
                 self.properties["Name"])
209
 
 
 
192
        self.logger(u'Client %s received its secret'
 
193
                    % self.properties[u"name"])
 
194
    
210
195
    def need_approval(self, timeout, default):
211
196
        if not default:
212
 
            message = "Client %s needs approval within %f seconds"
 
197
            message = u'Client %s needs approval within %s seconds'
213
198
        else:
214
 
            message = "Client %s will get its secret in %f seconds"
215
 
        log.info(message, self.properties["Name"], timeout/1000)
216
 
 
 
199
            message = u'Client %s will get its secret in %s seconds'
 
200
        self.logger(message
 
201
                    % (self.properties[u"name"], timeout/1000))
 
202
    
217
203
    def rejected(self, reason):
218
 
        log.info("Client %s was rejected; reason: %s",
219
 
                 self.properties["Name"], reason)
220
 
 
 
204
        self.logger(u'Client %s was rejected; reason: %s'
 
205
                    % (self.properties[u"name"], reason))
 
206
    
221
207
    def selectable(self):
222
208
        """Make this a "selectable" widget.
223
209
        This overrides the method from urwid.FlowWidget."""
224
210
        return True
225
 
 
226
 
    def rows(self, maxcolrow, focus=False):
 
211
    
 
212
    def rows(self, (maxcol,), focus=False):
227
213
        """How many rows this widget will occupy might depend on
228
214
        whether we have focus or not.
229
215
        This overrides the method from urwid.FlowWidget"""
230
 
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
231
 
 
 
216
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
217
    
232
218
    def current_widget(self, focus=False):
233
219
        if focus or self.opened:
234
220
            return self._focus_widget
235
221
        return self._widget
236
 
 
 
222
    
237
223
    def update(self):
238
224
        "Called when what is visible on the screen should be updated."
239
225
        # How to add standout mode to a style
240
 
        with_standout = {"normal": "standout",
241
 
                         "bold": "bold-standout",
242
 
                         "underline-blink":
243
 
                         "underline-blink-standout",
244
 
                         "bold-underline-blink":
245
 
                         "bold-underline-blink-standout",
246
 
                         }
 
226
        with_standout = { u"normal": u"standout",
 
227
                          u"bold": u"bold-standout",
 
228
                          u"underline-blink":
 
229
                              u"underline-blink-standout",
 
230
                          u"bold-underline-blink":
 
231
                              u"bold-underline-blink-standout",
 
232
                          }
247
233
 
248
234
        # Rebuild focus and non-focus widgets using current properties
249
235
 
250
236
        # Base part of a client. Name!
251
 
        base = "{name}: ".format(name=self.properties["Name"])
252
 
        if not self.properties["Enabled"]:
253
 
            message = "DISABLED"
254
 
            self.using_timer(False)
255
 
        elif self.properties["ApprovalPending"]:
256
 
            timeout = datetime.timedelta(
257
 
                milliseconds=self.properties["ApprovalDelay"])
258
 
            last_approval_request = isoformat_to_datetime(
259
 
                self.properties["LastApprovalRequest"])
260
 
            if last_approval_request is not None:
261
 
                timer = max(timeout - (datetime.datetime.utcnow()
262
 
                                       - last_approval_request),
263
 
                            datetime.timedelta())
264
 
            else:
265
 
                timer = datetime.timedelta()
266
 
            if self.properties["ApprovedByDefault"]:
267
 
                message = "Approval in {}. (d)eny?"
268
 
            else:
269
 
                message = "Denial in {}. (a)pprove?"
270
 
            message = message.format(str(timer).rsplit(".", 1)[0])
271
 
            self.using_timer(True)
272
 
        elif self.properties["LastCheckerStatus"] != 0:
273
 
            # When checker has failed, show timer until client expires
274
 
            expires = self.properties["Expires"]
275
 
            if expires == "":
276
 
                timer = datetime.timedelta(0)
277
 
            else:
278
 
                expires = (datetime.datetime.strptime
279
 
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
280
 
                timer = max(expires - datetime.datetime.utcnow(),
281
 
                            datetime.timedelta())
282
 
            message = ("A checker has failed! Time until client"
283
 
                       " gets disabled: {}"
284
 
                       .format(str(timer).rsplit(".", 1)[0]))
285
 
            self.using_timer(True)
 
237
        base = (u'%(name)s: '
 
238
                      % {u"name": self.properties[u"name"]})
 
239
        if not self.properties[u"enabled"]:
 
240
            message = u"DISABLED"
 
241
        elif self.last_checker_failed:
 
242
            timeout = datetime.timedelta(milliseconds
 
243
                                         = self.properties[u"timeout"])
 
244
            last_ok = isoformat_to_datetime(
 
245
                max((self.properties["last_checked_ok"]
 
246
                     or self.properties["created"]),
 
247
                    self.properties[u"last_enabled"]))
 
248
            timer = timeout - (datetime.datetime.utcnow() - last_ok)
 
249
            message = (u'A checker has failed! Time until client gets diabled: %s'
 
250
                           % unicode(timer).rsplit(".", 1)[0])
 
251
        elif self.properties[u"approved_pending"]:
 
252
            if self.properties[u"approved_by_default"]:
 
253
                message = u"Connection established to client. (d)eny?"
 
254
            else:
 
255
                message = u"Seeks approval to send secret. (a)pprove?"
286
256
        else:
287
 
            message = "enabled"
288
 
            self.using_timer(False)
289
 
        self._text = "{}{}".format(base, message)
290
 
 
 
257
            message = u"enabled"
 
258
        self._text = "%s%s" % (base, message)
 
259
            
291
260
        if not urwid.supports_unicode():
292
261
            self._text = self._text.encode("ascii", "replace")
293
 
        textlist = [("normal", self._text)]
 
262
        textlist = [(u"normal", self._text)]
294
263
        self._text_widget.set_text(textlist)
295
264
        self._focus_text_widget.set_text([(with_standout[text[0]],
296
265
                                           text[1])
303
272
        # Run update hook, if any
304
273
        if self.update_hook is not None:
305
274
            self.update_hook()
306
 
 
 
275
    
307
276
    def update_timer(self):
308
 
        """called by GLib. Will indefinitely loop until
309
 
        GLib.source_remove() on tag is called
310
 
        """
 
277
        "called by gobject"
311
278
        self.update()
312
279
        return True             # Keep calling this
313
 
 
314
 
    def delete(self, **kwargs):
 
280
    
 
281
    def delete(self):
315
282
        if self._update_timer_callback_tag is not None:
316
 
            GLib.source_remove(self._update_timer_callback_tag)
 
283
            gobject.source_remove(self._update_timer_callback_tag)
317
284
            self._update_timer_callback_tag = None
318
 
        for match in self.match_objects:
319
 
            match.remove()
320
 
        self.match_objects = ()
321
285
        if self.delete_hook is not None:
322
286
            self.delete_hook(self)
323
 
        return super(MandosClientWidget, self).delete(**kwargs)
324
 
 
325
 
    def render(self, maxcolrow, focus=False):
 
287
    
 
288
    def render(self, (maxcol,), focus=False):
326
289
        """Render differently if we have focus.
327
290
        This overrides the method from urwid.FlowWidget"""
328
 
        return self.current_widget(focus).render(maxcolrow,
 
291
        return self.current_widget(focus).render((maxcol,),
329
292
                                                 focus=focus)
330
 
 
331
 
    def keypress(self, maxcolrow, key):
 
293
    
 
294
    def keypress(self, (maxcol,), key):
332
295
        """Handle keys.
333
296
        This overrides the method from urwid.FlowWidget"""
334
 
        if key == "+":
335
 
            self.proxy.Set(client_interface, "Enabled",
336
 
                           dbus.Boolean(True), ignore_reply=True,
337
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
338
 
        elif key == "-":
339
 
            self.proxy.Set(client_interface, "Enabled", False,
340
 
                           ignore_reply=True,
341
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
342
 
        elif key == "a":
 
297
        if key == u"+":
 
298
            self.proxy.Enable(dbus_interface = client_interface)
 
299
        elif key == u"-":
 
300
            self.proxy.Disable(dbus_interface = client_interface)
 
301
        elif key == u"a":
343
302
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
344
 
                               dbus_interface=client_interface,
345
 
                               ignore_reply=True)
346
 
        elif key == "d":
 
303
                               dbus_interface = client_interface)
 
304
        elif key == u"d":
347
305
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
348
 
                               dbus_interface=client_interface,
349
 
                               ignore_reply=True)
350
 
        elif key == "R" or key == "_" or key == "ctrl k":
 
306
                                  dbus_interface = client_interface)
 
307
        elif key == u"r" or key == u"_" or key == u"ctrl k":
351
308
            self.server_proxy_object.RemoveClient(self.proxy
352
 
                                                  .object_path,
353
 
                                                  ignore_reply=True)
354
 
        elif key == "s":
355
 
            self.proxy.Set(client_interface, "CheckerRunning",
356
 
                           dbus.Boolean(True), ignore_reply=True,
357
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
358
 
        elif key == "S":
359
 
            self.proxy.Set(client_interface, "CheckerRunning",
360
 
                           dbus.Boolean(False), ignore_reply=True,
361
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
362
 
        elif key == "C":
363
 
            self.proxy.CheckedOK(dbus_interface=client_interface,
364
 
                                 ignore_reply=True)
 
309
                                                  .object_path)
 
310
        elif key == u"s":
 
311
            self.proxy.StartChecker(dbus_interface = client_interface)
 
312
        elif key == u"S":
 
313
            self.proxy.StopChecker(dbus_interface = client_interface)
 
314
        elif key == u"C":
 
315
            self.proxy.CheckedOK(dbus_interface = client_interface)
365
316
        # xxx
366
 
#         elif key == "p" or key == "=":
 
317
#         elif key == u"p" or key == "=":
367
318
#             self.proxy.pause()
368
 
#         elif key == "u" or key == ":":
 
319
#         elif key == u"u" or key == ":":
369
320
#             self.proxy.unpause()
370
 
#         elif key == "RET":
 
321
#         elif key == u"RET":
371
322
#             self.open()
 
323
#        elif key == u"+":
 
324
#            self.proxy.Approve(True)
 
325
#        elif key == u"-":
 
326
#            self.proxy.Approve(False)
372
327
        else:
373
328
            return key
374
 
 
375
 
    def properties_changed(self, interface, properties, invalidated):
376
 
        """Call self.update() if any properties changed.
 
329
    
 
330
    def property_changed(self, property=None, value=None,
 
331
                         *args, **kwargs):
 
332
        """Call self.update() if old value is not new value.
377
333
        This overrides the method from MandosClientPropertyCache"""
378
 
        old_values = {key: self.properties.get(key)
379
 
                      for key in properties.keys()}
380
 
        super(MandosClientWidget, self).properties_changed(
381
 
            interface, properties, invalidated)
382
 
        if any(old_values[key] != self.properties.get(key)
383
 
               for key in old_values):
 
334
        property_name = unicode(property)
 
335
        old_value = self.properties.get(property_name)
 
336
        super(MandosClientWidget, self).property_changed(
 
337
            property=property, value=value, *args, **kwargs)
 
338
        if self.properties.get(property_name) != old_value:
384
339
            self.update()
385
340
 
386
341
 
387
 
def glib_safely(func, retval=True):
388
 
    def safe_func(*args, **kwargs):
389
 
        try:
390
 
            return func(*args, **kwargs)
391
 
        except Exception:
392
 
            log.exception("")
393
 
            return retval
394
 
    return safe_func
395
 
 
396
 
 
397
342
class ConstrainedListBox(urwid.ListBox):
398
343
    """Like a normal urwid.ListBox, but will consume all "up" or
399
344
    "down" key presses, thus not allowing any containing widgets to
400
345
    use them as an excuse to shift focus away from this widget.
401
346
    """
402
 
    def keypress(self, *args, **kwargs):
403
 
        ret = (super(ConstrainedListBox, self)
404
 
               .keypress(*args, **kwargs))
405
 
        if ret in ("up", "down"):
 
347
    def keypress(self, (maxcol, maxrow), key):
 
348
        ret = super(ConstrainedListBox, self).keypress((maxcol, maxrow), key)
 
349
        if ret in (u"up", u"down"):
406
350
            return
407
351
        return ret
408
352
 
409
353
 
410
 
class UserInterface:
 
354
class UserInterface(object):
411
355
    """This is the entire user interface - the whole screen
412
356
    with boxes, lists of client widgets, etc.
413
357
    """
414
358
    def __init__(self, max_log_length=1000):
415
359
        DBusGMainLoop(set_as_default=True)
416
 
 
 
360
        
417
361
        self.screen = urwid.curses_display.Screen()
418
 
 
 
362
        
419
363
        self.screen.register_palette((
420
 
                ("normal",
421
 
                 "default", "default", None),
422
 
                ("bold",
423
 
                 "bold", "default", "bold"),
424
 
                ("underline-blink",
425
 
                 "underline,blink", "default", "underline,blink"),
426
 
                ("standout",
427
 
                 "standout", "default", "standout"),
428
 
                ("bold-underline-blink",
429
 
                 "bold,underline,blink", "default",
430
 
                 "bold,underline,blink"),
431
 
                ("bold-standout",
432
 
                 "bold,standout", "default", "bold,standout"),
433
 
                ("underline-blink-standout",
434
 
                 "underline,blink,standout", "default",
435
 
                 "underline,blink,standout"),
436
 
                ("bold-underline-blink-standout",
437
 
                 "bold,underline,blink,standout", "default",
438
 
                 "bold,underline,blink,standout"),
 
364
                (u"normal",
 
365
                 u"default", u"default", None),
 
366
                (u"bold",
 
367
                 u"default", u"default", u"bold"),
 
368
                (u"underline-blink",
 
369
                 u"default", u"default", u"underline"),
 
370
                (u"standout",
 
371
                 u"default", u"default", u"standout"),
 
372
                (u"bold-underline-blink",
 
373
                 u"default", u"default", (u"bold", u"underline")),
 
374
                (u"bold-standout",
 
375
                 u"default", u"default", (u"bold", u"standout")),
 
376
                (u"underline-blink-standout",
 
377
                 u"default", u"default", (u"underline", u"standout")),
 
378
                (u"bold-underline-blink-standout",
 
379
                 u"default", u"default", (u"bold", u"underline",
 
380
                                          u"standout")),
439
381
                ))
440
 
 
 
382
        
441
383
        if urwid.supports_unicode():
442
 
            self.divider = "─"  # \u2500
 
384
            self.divider = u"─" # \u2500
 
385
            #self.divider = u"━" # \u2501
443
386
        else:
444
 
            self.divider = "_"  # \u005f
445
 
 
 
387
            #self.divider = u"-" # \u002d
 
388
            self.divider = u"_" # \u005f
 
389
        
446
390
        self.screen.start()
447
 
 
 
391
        
448
392
        self.size = self.screen.get_cols_rows()
449
 
 
 
393
        
450
394
        self.clients = urwid.SimpleListWalker([])
451
395
        self.clients_dict = {}
452
 
 
 
396
        
453
397
        # We will add Text widgets to this list
454
 
        self.log = urwid.SimpleListWalker([])
 
398
        self.log = []
455
399
        self.max_log_length = max_log_length
456
 
 
 
400
        
457
401
        # We keep a reference to the log widget so we can remove it
458
402
        # from the ListWalker without it getting destroyed
459
403
        self.logbox = ConstrainedListBox(self.log)
460
 
 
 
404
        
461
405
        # This keeps track of whether self.uilist currently has
462
406
        # self.logbox in it or not
463
407
        self.log_visible = True
464
 
        self.log_wrap = "any"
465
 
 
466
 
        self.loghandler = UILogHandler(self)
467
 
 
 
408
        self.log_wrap = u"any"
 
409
        
468
410
        self.rebuild()
469
 
        self.add_log_line(("bold",
470
 
                           "Mandos Monitor version " + version))
471
 
        self.add_log_line(("bold", "q: Quit  ?: Help"))
472
 
 
473
 
        self.busname = domain + ".Mandos"
474
 
        self.main_loop = GLib.MainLoop()
475
 
 
476
 
    def client_not_found(self, key_id, address):
477
 
        log.info("Client with address %s and key ID %s could"
478
 
                 " not be found", address, key_id)
479
 
 
 
411
        self.log_message_raw((u"bold",
 
412
                              u"Mandos Monitor version " + version))
 
413
        self.log_message_raw((u"bold",
 
414
                              u"q: Quit  ?: Help"))
 
415
        
 
416
        self.busname = domain + '.Mandos'
 
417
        self.main_loop = gobject.MainLoop()
 
418
        self.bus = dbus.SystemBus()
 
419
        mandos_dbus_objc = self.bus.get_object(
 
420
            self.busname, u"/", follow_name_owner_changes=True)
 
421
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
422
                                          dbus_interface
 
423
                                          = server_interface)
 
424
        try:
 
425
            mandos_clients = (self.mandos_serv
 
426
                              .GetAllClientsWithProperties())
 
427
        except dbus.exceptions.DBusException:
 
428
            mandos_clients = dbus.Dictionary()
 
429
        
 
430
        (self.mandos_serv
 
431
         .connect_to_signal(u"ClientRemoved",
 
432
                            self.find_and_remove_client,
 
433
                            dbus_interface=server_interface,
 
434
                            byte_arrays=True))
 
435
        (self.mandos_serv
 
436
         .connect_to_signal(u"ClientAdded",
 
437
                            self.add_new_client,
 
438
                            dbus_interface=server_interface,
 
439
                            byte_arrays=True))
 
440
        (self.mandos_serv
 
441
         .connect_to_signal(u"ClientNotFound",
 
442
                            self.client_not_found,
 
443
                            dbus_interface=server_interface,
 
444
                            byte_arrays=True))
 
445
        for path, client in mandos_clients.iteritems():
 
446
            client_proxy_object = self.bus.get_object(self.busname,
 
447
                                                      path)
 
448
            self.add_client(MandosClientWidget(server_proxy_object
 
449
                                               =self.mandos_serv,
 
450
                                               proxy_object
 
451
                                               =client_proxy_object,
 
452
                                               properties=client,
 
453
                                               update_hook
 
454
                                               =self.refresh,
 
455
                                               delete_hook
 
456
                                               =self.remove_client,
 
457
                                               logger
 
458
                                               =self.log_message),
 
459
                            path=path)
 
460
    
 
461
    def client_not_found(self, fingerprint, address):
 
462
        self.log_message((u"Client with address %s and fingerprint %s"
 
463
                          u" could not be found" % (address,
 
464
                                                    fingerprint)))
 
465
    
480
466
    def rebuild(self):
481
467
        """This rebuilds the User Interface.
482
468
        Call this when the widget layout needs to change"""
483
469
        self.uilist = []
484
 
        # self.uilist.append(urwid.ListBox(self.clients))
485
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
486
 
                                                          clients),
487
 
                                       # header=urwid.Divider(),
 
470
        #self.uilist.append(urwid.ListBox(self.clients))
 
471
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
 
472
                                       #header=urwid.Divider(),
488
473
                                       header=None,
489
 
                                       footer=urwid.Divider(
490
 
                                           div_char=self.divider)))
 
474
                                       footer=urwid.Divider(div_char=self.divider)))
491
475
        if self.log_visible:
492
476
            self.uilist.append(self.logbox)
 
477
            pass
493
478
        self.topwidget = urwid.Pile(self.uilist)
494
 
 
495
 
    def add_log_line(self, markup):
 
479
    
 
480
    def log_message(self, message):
 
481
        timestamp = datetime.datetime.now().isoformat()
 
482
        self.log_message_raw(timestamp + u": " + message)
 
483
    
 
484
    def log_message_raw(self, markup):
 
485
        """Add a log message to the log buffer."""
496
486
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
497
 
        if self.max_log_length:
498
 
            if len(self.log) > self.max_log_length:
499
 
                del self.log[0:(len(self.log) - self.max_log_length)]
500
 
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
501
 
                              coming_from="above")
 
487
        if (self.max_log_length
 
488
            and len(self.log) > self.max_log_length):
 
489
            del self.log[0:len(self.log)-self.max_log_length-1]
 
490
        self.logbox.set_focus(len(self.logbox.body.contents),
 
491
                              coming_from=u"above")
502
492
        self.refresh()
503
 
 
 
493
    
504
494
    def toggle_log_display(self):
505
495
        """Toggle visibility of the log buffer."""
506
496
        self.log_visible = not self.log_visible
507
497
        self.rebuild()
508
 
        log.debug("Log visibility changed to: %s", self.log_visible)
509
 
 
 
498
        self.log_message(u"Log visibility changed to: "
 
499
                         + unicode(self.log_visible))
 
500
    
510
501
    def change_log_display(self):
511
502
        """Change type of log display.
512
503
        Currently, this toggles wrapping of text lines."""
513
 
        if self.log_wrap == "clip":
514
 
            self.log_wrap = "any"
 
504
        if self.log_wrap == u"clip":
 
505
            self.log_wrap = u"any"
515
506
        else:
516
 
            self.log_wrap = "clip"
 
507
            self.log_wrap = u"clip"
517
508
        for textwidget in self.log:
518
509
            textwidget.set_wrap_mode(self.log_wrap)
519
 
        log.debug("Wrap mode: %s", self.log_wrap)
520
 
 
521
 
    def find_and_remove_client(self, path, interfaces):
522
 
        """Find a client by its object path and remove it.
523
 
 
524
 
        This is connected to the InterfacesRemoved signal from the
 
510
        self.log_message(u"Wrap mode: " + self.log_wrap)
 
511
    
 
512
    def find_and_remove_client(self, path, name):
 
513
        """Find an client from its object path and remove it.
 
514
        
 
515
        This is connected to the ClientRemoved signal from the
525
516
        Mandos server object."""
526
 
        if client_interface not in interfaces:
527
 
            # Not a Mandos client object; ignore
528
 
            return
529
517
        try:
530
518
            client = self.clients_dict[path]
531
519
        except KeyError:
532
520
            # not found?
533
 
            log.warning("Unknown client %s removed", path)
534
 
            return
535
 
        client.delete()
536
 
 
537
 
    def add_new_client(self, path, ifs_and_props):
538
 
        """Find a client by its object path and remove it.
539
 
 
540
 
        This is connected to the InterfacesAdded signal from the
541
 
        Mandos server object.
542
 
        """
543
 
        if client_interface not in ifs_and_props:
544
 
            # Not a Mandos client object; ignore
545
 
            return
 
521
            return
 
522
        self.remove_client(client, path)
 
523
    
 
524
    def add_new_client(self, path):
546
525
        client_proxy_object = self.bus.get_object(self.busname, path)
547
 
        self.add_client(MandosClientWidget(
548
 
            server_proxy_object=self.mandos_serv,
549
 
            proxy_object=client_proxy_object,
550
 
            update_hook=self.refresh,
551
 
            delete_hook=self.remove_client,
552
 
            properties=dict(ifs_and_props[client_interface])),
 
526
        self.add_client(MandosClientWidget(server_proxy_object
 
527
                                           =self.mandos_serv,
 
528
                                           proxy_object
 
529
                                           =client_proxy_object,
 
530
                                           update_hook
 
531
                                           =self.refresh,
 
532
                                           delete_hook
 
533
                                           =self.remove_client,
 
534
                                           logger
 
535
                                           =self.log_message),
553
536
                        path=path)
554
 
 
 
537
    
555
538
    def add_client(self, client, path=None):
556
539
        self.clients.append(client)
557
540
        if path is None:
558
541
            path = client.proxy.object_path
559
542
        self.clients_dict[path] = client
560
 
        self.clients.sort(key=lambda c: c.properties["Name"])
 
543
        self.clients.sort(None, lambda c: c.properties[u"name"])
561
544
        self.refresh()
562
 
 
 
545
    
563
546
    def remove_client(self, client, path=None):
564
547
        self.clients.remove(client)
565
548
        if path is None:
566
549
            path = client.proxy.object_path
567
550
        del self.clients_dict[path]
 
551
        if not self.clients_dict:
 
552
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
553
            # is completely emptied, we need to recreate it.
 
554
            self.clients = urwid.SimpleListWalker([])
 
555
            self.rebuild()
568
556
        self.refresh()
569
 
 
 
557
    
570
558
    def refresh(self):
571
559
        """Redraw the screen"""
572
560
        canvas = self.topwidget.render(self.size, focus=True)
573
561
        self.screen.draw_screen(self.size, canvas)
574
 
 
 
562
    
575
563
    def run(self):
576
564
        """Start the main loop and exit when it's done."""
577
 
        log.addHandler(self.loghandler)
578
 
        self.orig_log_propagate = log.propagate
579
 
        log.propagate = False
580
 
        self.orig_log_level = log.level
581
 
        log.setLevel("INFO")
582
 
        self.bus = dbus.SystemBus()
583
 
        mandos_dbus_objc = self.bus.get_object(
584
 
            self.busname, "/", follow_name_owner_changes=True)
585
 
        self.mandos_serv = dbus.Interface(
586
 
            mandos_dbus_objc, dbus_interface=server_interface)
587
 
        try:
588
 
            mandos_clients = (self.mandos_serv
589
 
                              .GetAllClientsWithProperties())
590
 
            if not mandos_clients:
591
 
                log.warning("Note: Server has no clients.")
592
 
        except dbus.exceptions.DBusException:
593
 
            log.warning("Note: No Mandos server running.")
594
 
            mandos_clients = dbus.Dictionary()
595
 
 
596
 
        (self.mandos_serv
597
 
         .connect_to_signal("InterfacesRemoved",
598
 
                            self.find_and_remove_client,
599
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
600
 
                            byte_arrays=True))
601
 
        (self.mandos_serv
602
 
         .connect_to_signal("InterfacesAdded",
603
 
                            self.add_new_client,
604
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
605
 
                            byte_arrays=True))
606
 
        (self.mandos_serv
607
 
         .connect_to_signal("ClientNotFound",
608
 
                            self.client_not_found,
609
 
                            dbus_interface=server_interface,
610
 
                            byte_arrays=True))
611
 
        for path, client in mandos_clients.items():
612
 
            client_proxy_object = self.bus.get_object(self.busname,
613
 
                                                      path)
614
 
            self.add_client(MandosClientWidget(
615
 
                server_proxy_object=self.mandos_serv,
616
 
                proxy_object=client_proxy_object,
617
 
                properties=client,
618
 
                update_hook=self.refresh,
619
 
                delete_hook=self.remove_client),
620
 
                            path=path)
621
 
 
622
565
        self.refresh()
623
 
        self._input_callback_tag = (
624
 
            GLib.io_add_watch(
625
 
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
626
 
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
627
 
                glib_safely(self.process_input)))
 
566
        self._input_callback_tag = (gobject.io_add_watch
 
567
                                    (sys.stdin.fileno(),
 
568
                                     gobject.IO_IN,
 
569
                                     self.process_input))
628
570
        self.main_loop.run()
629
571
        # Main loop has finished, we should close everything now
630
 
        GLib.source_remove(self._input_callback_tag)
631
 
        with warnings.catch_warnings():
632
 
            warnings.simplefilter("ignore", BytesWarning)
633
 
            self.screen.stop()
634
 
 
 
572
        gobject.source_remove(self._input_callback_tag)
 
573
        self.screen.stop()
 
574
    
635
575
    def stop(self):
636
576
        self.main_loop.quit()
637
 
        log.removeHandler(self.loghandler)
638
 
        log.propagate = self.orig_log_propagate
639
 
 
 
577
    
640
578
    def process_input(self, source, condition):
641
579
        keys = self.screen.get_input()
642
 
        translations = {"ctrl n": "down",       # Emacs
643
 
                        "ctrl p": "up",         # Emacs
644
 
                        "ctrl v": "page down",  # Emacs
645
 
                        "meta v": "page up",    # Emacs
646
 
                        " ": "page down",       # less
647
 
                        "f": "page down",       # less
648
 
                        "b": "page up",         # less
649
 
                        "j": "down",            # vi
650
 
                        "k": "up",              # vi
651
 
                        }
 
580
        translations = { u"ctrl n": u"down",      # Emacs
 
581
                         u"ctrl p": u"up",        # Emacs
 
582
                         u"ctrl v": u"page down", # Emacs
 
583
                         u"meta v": u"page up",   # Emacs
 
584
                         u" ": u"page down",      # less
 
585
                         u"f": u"page down",      # less
 
586
                         u"b": u"page up",        # less
 
587
                         u"j": u"down",           # vi
 
588
                         u"k": u"up",             # vi
 
589
                         }
652
590
        for key in keys:
653
591
            try:
654
592
                key = translations[key]
655
593
            except KeyError:    # :-)
656
594
                pass
657
 
 
658
 
            if key == "q" or key == "Q":
 
595
            
 
596
            if key == u"q" or key == u"Q":
659
597
                self.stop()
660
598
                break
661
 
            elif key == "window resize":
 
599
            elif key == u"window resize":
662
600
                self.size = self.screen.get_cols_rows()
663
601
                self.refresh()
664
 
            elif key == "ctrl l":
665
 
                self.screen.clear()
 
602
            elif key == u"\f":  # Ctrl-L
666
603
                self.refresh()
667
 
            elif key == "l" or key == "D":
 
604
            elif key == u"l" or key == u"D":
668
605
                self.toggle_log_display()
669
606
                self.refresh()
670
 
            elif key == "w" or key == "i":
 
607
            elif key == u"w" or key == u"i":
671
608
                self.change_log_display()
672
609
                self.refresh()
673
 
            elif key == "?" or key == "f1" or key == "esc":
 
610
            elif key == u"?" or key == u"f1" or key == u"esc":
674
611
                if not self.log_visible:
675
612
                    self.log_visible = True
676
613
                    self.rebuild()
677
 
                self.add_log_line(("bold",
678
 
                                   "  ".join(("q: Quit",
679
 
                                              "?: Help",
680
 
                                              "l: Log window toggle",
681
 
                                              "TAB: Switch window",
682
 
                                              "w: Wrap (log lines)",
683
 
                                              "v: Toggle verbose log",
684
 
                                   ))))
685
 
                self.add_log_line(("bold",
686
 
                                   "  ".join(("Clients:",
687
 
                                              "+: Enable",
688
 
                                              "-: Disable",
689
 
                                              "R: Remove",
690
 
                                              "s: Start new checker",
691
 
                                              "S: Stop checker",
692
 
                                              "C: Checker OK",
693
 
                                              "a: Approve",
694
 
                                              "d: Deny",
695
 
                                   ))))
 
614
                self.log_message_raw((u"bold",
 
615
                                      u"  ".
 
616
                                      join((u"q: Quit",
 
617
                                            u"?: Help",
 
618
                                            u"l: Log window toggle",
 
619
                                            u"TAB: Switch window",
 
620
                                            u"w: Wrap (log)"))))
 
621
                self.log_message_raw((u"bold",
 
622
                                      u"  "
 
623
                                      .join((u"Clients:",
 
624
                                             u"+: Enable",
 
625
                                             u"-: Disable",
 
626
                                             u"r: Remove",
 
627
                                             u"s: Start new checker",
 
628
                                             u"S: Stop checker",
 
629
                                             u"C: Checker OK",
 
630
                                             u"a: Approve",
 
631
                                             u"d: Deny"))))
696
632
                self.refresh()
697
 
            elif key == "tab":
 
633
            elif key == u"tab":
698
634
                if self.topwidget.get_focus() is self.logbox:
699
635
                    self.topwidget.set_focus(0)
700
636
                else:
701
637
                    self.topwidget.set_focus(self.logbox)
702
638
                self.refresh()
703
 
            elif key == "v":
704
 
                if log.level < logging.INFO:
705
 
                    log.setLevel(logging.INFO)
706
 
                    log.info("Verbose mode: Off")
707
 
                else:
708
 
                    log.setLevel(logging.NOTSET)
709
 
                    log.info("Verbose mode: On")
710
 
            # elif (key == "end" or key == "meta >" or key == "G"
711
 
            #       or key == ">"):
712
 
            #     pass            # xxx end-of-buffer
713
 
            # elif (key == "home" or key == "meta <" or key == "g"
714
 
            #       or key == "<"):
715
 
            #     pass            # xxx beginning-of-buffer
716
 
            # elif key == "ctrl e" or key == "$":
717
 
            #     pass            # xxx move-end-of-line
718
 
            # elif key == "ctrl a" or key == "^":
719
 
            #     pass            # xxx move-beginning-of-line
720
 
            # elif key == "ctrl b" or key == "meta (" or key == "h":
721
 
            #     pass            # xxx left
722
 
            # elif key == "ctrl f" or key == "meta )" or key == "l":
723
 
            #     pass            # xxx right
724
 
            # elif key == "a":
725
 
            #     pass            # scroll up log
726
 
            # elif key == "z":
727
 
            #     pass            # scroll down log
 
639
            #elif (key == u"end" or key == u"meta >" or key == u"G"
 
640
            #      or key == u">"):
 
641
            #    pass            # xxx end-of-buffer
 
642
            #elif (key == u"home" or key == u"meta <" or key == u"g"
 
643
            #      or key == u"<"):
 
644
            #    pass            # xxx beginning-of-buffer
 
645
            #elif key == u"ctrl e" or key == u"$":
 
646
            #    pass            # xxx move-end-of-line
 
647
            #elif key == u"ctrl a" or key == u"^":
 
648
            #    pass            # xxx move-beginning-of-line
 
649
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
650
            #    pass            # xxx left
 
651
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
652
            #    pass            # xxx right
 
653
            #elif key == u"a":
 
654
            #    pass            # scroll up log
 
655
            #elif key == u"z":
 
656
            #    pass            # scroll down log
728
657
            elif self.topwidget.selectable():
729
658
                self.topwidget.keypress(self.size, key)
730
659
                self.refresh()
731
660
        return True
732
661
 
733
 
 
734
 
class UILogHandler(logging.Handler):
735
 
    def __init__(self, ui, *args, **kwargs):
736
 
        self.ui = ui
737
 
        super(UILogHandler, self).__init__(*args, **kwargs)
738
 
        self.setFormatter(
739
 
            logging.Formatter("%(asctime)s: %(message)s"))
740
 
    def emit(self, record):
741
 
        msg = self.format(record)
742
 
        if record.levelno > logging.INFO:
743
 
            msg = ("bold", msg)
744
 
        self.ui.add_log_line(msg)
745
 
 
746
 
 
747
662
ui = UserInterface()
748
663
try:
749
664
    ui.run()
750
 
except KeyboardInterrupt:
751
 
    with warnings.catch_warnings():
752
 
        warnings.filterwarnings("ignore", "", BytesWarning)
753
 
        ui.screen.stop()
754
 
except Exception:
755
 
    with warnings.catch_warnings():
756
 
        warnings.filterwarnings("ignore", "", BytesWarning)
757
 
        ui.screen.stop()
 
665
except Exception, e:
 
666
    ui.log_message(unicode(e))
 
667
    ui.screen.stop()
758
668
    raise