1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
|
/*
A small wrapper utility to load indicators and put them as menu items
into the gnome-panel using it's applet interface.
Copyright 2009 Canonical Ltd.
Authors:
Ted Gould <ted@canonical.com>
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License version 3, as published
by the Free Software Foundation.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranties of
MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <unistd.h>
#include <glib.h>
#include <dbus/dbus-glib.h>
#include <polkit/polkit.h>
#include "dialog.h"
#include "ck-pk-helper.h"
static gboolean
ck_multiple_users (void)
{
DBusGConnection * sbus = dbus_g_bus_get(DBUS_BUS_SYSTEM, NULL);
g_return_val_if_fail(sbus != NULL, TRUE); /* worst case */
DBusGProxy * proxy = dbus_g_proxy_new_for_name(sbus, "org.freedesktop.ConsoleKit",
"/org/freedesktop/ConsoleKit/Manager",
"org.freedesktop.ConsoleKit.Manager");
if (proxy == NULL) {
return TRUE;
}
gboolean result;
GPtrArray * seats = NULL;
result = dbus_g_proxy_call(proxy, "GetSeats", NULL, G_TYPE_INVALID,
dbus_g_type_get_collection("GPtrArray", DBUS_TYPE_G_OBJECT_PATH), &seats, G_TYPE_INVALID);
if (!result) {
g_warning("Unable to get the seats for ConsoleKit");
g_object_unref(proxy);
return TRUE;
}
gchar * this_session_id = NULL;
result = dbus_g_proxy_call(proxy, "GetCurrentSession", NULL, G_TYPE_INVALID,
DBUS_TYPE_G_OBJECT_PATH, &this_session_id, G_TYPE_INVALID);
g_object_unref(proxy);
if (!result) {
g_warning("Unable to get current session from ConsoleKit");
return TRUE;
}
proxy = dbus_g_proxy_new_for_name(sbus, "org.freedesktop.ConsoleKit",
this_session_id, "org.freedesktop.ConsoleKit.Session");
if (proxy == NULL) {
return TRUE;
}
guint this_session_uid;
result = dbus_g_proxy_call(proxy, "GetUnixUser", NULL, G_TYPE_INVALID,
G_TYPE_UINT, &this_session_uid, G_TYPE_INVALID);
if (!result) {
g_warning("Unable to get UID from ConsoleKit");
return TRUE;
}
guint seat;
gboolean multiple_users = FALSE;
for (seat = 0; seat < seats->len; seat++) {
gchar * seat_id = g_ptr_array_index(seats, seat);
DBusGProxy * seat_proxy = dbus_g_proxy_new_for_name(sbus, "org.freedesktop.ConsoleKit",
seat_id, "org.freedesktop.ConsoleKit.Seat");
g_free(seat_id);
if (seat_proxy == NULL) {
continue;
}
GPtrArray * sessions = NULL;
gboolean result = dbus_g_proxy_call(seat_proxy,
"GetSessions", NULL, G_TYPE_INVALID,
dbus_g_type_get_collection("GPtrArray", DBUS_TYPE_G_OBJECT_PATH), &sessions, G_TYPE_INVALID);
g_object_unref(seat_proxy);
if (!result) {
continue;
}
guint session;
for (session = 0; session < sessions->len; session++) {
gchar * session_id = g_ptr_array_index(sessions, session);
if (g_strcmp0(this_session_id, session_id) == 0) {
continue;
}
DBusGProxy * session_proxy = dbus_g_proxy_new_for_name(sbus, "org.freedesktop.ConsoleKit",
session_id, "org.freedesktop.ConsoleKit.Session");
g_free(session_id);
if (session_proxy == NULL) {
continue;
}
guint session_uid;
result = dbus_g_proxy_call(session_proxy, "GetUnixUser", NULL, G_TYPE_INVALID,
G_TYPE_UINT, &session_uid, G_TYPE_INVALID);
g_object_unref(session_proxy);
if (!result) {
continue;
}
if (session_uid != this_session_uid) {
multiple_users = TRUE;
break;
}
}
g_ptr_array_free(sessions, TRUE);
if (multiple_users) {
break;
}
}
g_ptr_array_free(seats, TRUE);
g_object_unref(proxy);
g_free(this_session_id);
return multiple_users;
}
gboolean
pk_require_auth (LogoutDialogType action) {
if (action == LOGOUT_DIALOG_TYPE_LOG_OUT) {
return FALSE;
}
gchar * pk_action;
if (ck_multiple_users()) {
if (action == LOGOUT_DIALOG_TYPE_RESTART) {
pk_action = "org.freedesktop.consolekit.system.restart-multiple-users";
} else {
pk_action = "org.freedesktop.consolekit.system.stop-multiple-users";
}
} else {
if (action == LOGOUT_DIALOG_TYPE_RESTART) {
pk_action = "org.freedesktop.consolekit.system.restart";
} else {
pk_action = "org.freedesktop.consolekit.system.stop";
}
}
PolkitAuthorizationResult *polres = NULL;
gboolean ret = FALSE;
if (pk_can_do_action(pk_action, &polres)) {
if (polkit_authorization_result_get_is_challenge (polres)) {
ret = TRUE;
}
g_debug ("pk_require_auth(%s): authorized, is_challenge: %i", pk_action, ret);
} else {
g_debug ("pk_require_auth(%s): not authorized", pk_action);
}
if (polres) {
g_object_unref (polres);
}
return ret;
}
gboolean
pk_can_do_action (const gchar *action_id, PolkitAuthorizationResult ** pol_result)
{
PolkitAuthority *authority;
PolkitSubject *subject;
PolkitAuthorizationResult *result;
gboolean ret;
authority = polkit_authority_get();
if (!authority) {
g_warning ("Could not get PolicyKit authority instance");
return FALSE;
}
subject = polkit_unix_process_new (getpid());
result = polkit_authority_check_authorization_sync (authority, subject, action_id, NULL, 0, NULL, NULL);
g_object_unref (authority);
ret = FALSE;
if (result) {
ret = polkit_authorization_result_get_is_authorized (result) ||
polkit_authorization_result_get_is_challenge (result);
g_debug ("pk_can_do_action(%s): %i", action_id, ret);
} else {
g_warning ("pk_can_do_action(%s): check_authorization returned NULL", action_id);
}
if (pol_result) {
*pol_result = result;
} else {
g_object_unref (result);
}
return ret;
}
|
