2 This file is part of PulseAudio.
4 Copyright 2008 Lennart Poettering
6 PulseAudio is free software; you can redistribute it and/or modify
7 it under the terms of the GNU Lesser General Public License as published
8 by the Free Software Foundation; either version 2.1 of the License,
9 or (at your option) any later version.
11 PulseAudio is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public License
17 along with PulseAudio; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
32 #include <sys/types.h>
35 #include <pulse/xmalloc.h>
36 #include <pulse/timeval.h>
38 #include <pulsecore/core-error.h>
39 #include <pulsecore/module.h>
40 #include <pulsecore/log.h>
41 #include <pulsecore/hashmap.h>
42 #include <pulsecore/idxset.h>
43 #include <pulsecore/core-util.h>
44 #include <pulsecore/namereg.h>
45 #include <pulsecore/core-scache.h>
46 #include <pulsecore/modargs.h>
47 #include <pulsecore/dbus-shared.h>
49 #include "module-console-kit-symdef.h"
51 PA_MODULE_AUTHOR("Lennart Poettering");
52 PA_MODULE_DESCRIPTION("Create a client for each ConsoleKit session of this user");
53 PA_MODULE_VERSION(PACKAGE_VERSION
);
54 PA_MODULE_LOAD_ONCE(TRUE
);
56 static const char* const valid_modargs
[] = {
68 pa_dbus_connection
*connection
;
70 pa_bool_t filter_added
;
73 static void add_session(struct userdata
*u
, const char *id
) {
75 DBusMessage
*m
= NULL
, *reply
= NULL
;
77 struct session
*session
;
78 pa_client_new_data data
;
80 dbus_error_init (&error
);
82 if (pa_hashmap_get(u
->sessions
, id
)) {
83 pa_log_warn("Duplicate session %s, ignoring.", id
);
87 if (!(m
= dbus_message_new_method_call("org.freedesktop.ConsoleKit", id
, "org.freedesktop.ConsoleKit.Session", "GetUnixUser"))) {
88 pa_log("Failed to allocate GetUnixUser() method call.");
92 if (!(reply
= dbus_connection_send_with_reply_and_block(pa_dbus_connection_get(u
->connection
), m
, -1, &error
))) {
93 pa_log("GetUnixUser() call failed: %s: %s", error
.name
, error
.message
);
97 /* CK 0.3 this changed from int32 to uint32 */
98 if (!dbus_message_get_args(reply
, &error
, DBUS_TYPE_UINT32
, &uid
, DBUS_TYPE_INVALID
)) {
99 dbus_error_free(&error
);
101 if (!dbus_message_get_args(reply
, &error
, DBUS_TYPE_INT32
, &uid
, DBUS_TYPE_INVALID
)) {
102 pa_log("Failed to parse GetUnixUser() result: %s: %s", error
.name
, error
.message
);
107 /* We only care about our own sessions */
108 if ((uid_t
) uid
!= getuid())
111 session
= pa_xnew(struct session
, 1);
112 session
->id
= pa_xstrdup(id
);
114 pa_client_new_data_init(&data
);
115 data
.module
= u
->module
;
116 data
.driver
= __FILE__
;
117 pa_proplist_setf(data
.proplist
, PA_PROP_APPLICATION_NAME
, "ConsoleKit Session %s", id
);
118 pa_proplist_sets(data
.proplist
, "console-kit.session", id
);
119 session
->client
= pa_client_new(u
->core
, &data
);
120 pa_client_new_data_done(&data
);
122 if (!session
->client
) {
123 pa_xfree(session
->id
);
128 pa_hashmap_put(u
->sessions
, session
->id
, session
);
130 pa_log_debug("Added new session %s", id
);
135 dbus_message_unref(m
);
138 dbus_message_unref(reply
);
140 dbus_error_free(&error
);
143 static void free_session(struct session
*session
) {
146 pa_log_debug("Removing session %s", session
->id
);
148 pa_client_free(session
->client
);
149 pa_xfree(session
->id
);
153 static void remove_session(struct userdata
*u
, const char *id
) {
154 struct session
*session
;
156 if (!(session
= pa_hashmap_remove(u
->sessions
, id
)))
159 free_session(session
);
162 static DBusHandlerResult
filter_cb(DBusConnection
*bus
, DBusMessage
*message
, void *userdata
) {
163 struct userdata
*u
= userdata
;
171 dbus_error_init(&error
);
173 pa_log_debug("dbus: interface=%s, path=%s, member=%s\n",
174 dbus_message_get_interface(message
),
175 dbus_message_get_path(message
),
176 dbus_message_get_member(message
));
178 if (dbus_message_is_signal(message
, "org.freedesktop.ConsoleKit.Seat", "SessionAdded")) {
180 /* CK API changed to match spec in 0.3 */
181 if (!dbus_message_get_args(message
, &error
, DBUS_TYPE_OBJECT_PATH
, &path
, DBUS_TYPE_INVALID
)) {
182 dbus_error_free(&error
);
184 if (!dbus_message_get_args(message
, &error
, DBUS_TYPE_STRING
, &path
, DBUS_TYPE_INVALID
)) {
185 pa_log_error("Failed to parse SessionAdded message: %s: %s", error
.name
, error
.message
);
190 add_session(u
, path
);
192 } else if (dbus_message_is_signal(message
, "org.freedesktop.ConsoleKit.Seat", "SessionRemoved")) {
194 /* CK API changed to match spec in 0.3 */
195 if (!dbus_message_get_args(message
, &error
, DBUS_TYPE_OBJECT_PATH
, &path
, DBUS_TYPE_INVALID
)) {
196 dbus_error_free(&error
);
198 if (!dbus_message_get_args(message
, &error
, DBUS_TYPE_STRING
, &path
, DBUS_TYPE_INVALID
)) {
199 pa_log_error("Failed to parse SessionRemoved message: %s: %s", error
.name
, error
.message
);
204 remove_session(u
, path
);
208 dbus_error_free(&error
);
210 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED
;
213 static int get_session_list(struct userdata
*u
) {
215 DBusMessage
*m
= NULL
, *reply
= NULL
;
217 DBusMessageIter iter
, sub
;
222 dbus_error_init(&error
);
224 if (!(m
= dbus_message_new_method_call("org.freedesktop.ConsoleKit", "/org/freedesktop/ConsoleKit/Manager", "org.freedesktop.ConsoleKit.Manager", "GetSessionsForUnixUser"))) {
225 pa_log("Failed to allocate GetSessionsForUnixUser() method call.");
229 uid
= (uint32_t) getuid();
230 if (!(dbus_message_append_args(m
, DBUS_TYPE_UINT32
, &uid
, DBUS_TYPE_INVALID
))) {
231 pa_log("Failed to append arguments to GetSessionsForUnixUser() method call.");
235 if (!(reply
= dbus_connection_send_with_reply_and_block(pa_dbus_connection_get(u
->connection
), m
, -1, &error
))) {
236 pa_log("GetSessionsForUnixUser() call failed: %s: %s", error
.name
, error
.message
);
240 dbus_message_iter_init(reply
, &iter
);
242 if (dbus_message_iter_get_arg_type(&iter
) != DBUS_TYPE_ARRAY
||
243 dbus_message_iter_get_element_type(&iter
) != DBUS_TYPE_OBJECT_PATH
) {
244 pa_log("Failed to parse GetSessionsForUnixUser() result.");
248 dbus_message_iter_recurse(&iter
, &sub
);
254 if ((at
= dbus_message_iter_get_arg_type(&sub
)) == DBUS_TYPE_INVALID
)
257 assert(at
== DBUS_TYPE_OBJECT_PATH
);
258 dbus_message_iter_get_basic(&sub
, &id
);
262 dbus_message_iter_next(&sub
);
270 dbus_message_unref(m
);
273 dbus_message_unref(reply
);
275 dbus_error_free(&error
);
280 int pa__init(pa_module
*m
) {
282 pa_dbus_connection
*connection
;
283 struct userdata
*u
= NULL
;
288 dbus_error_init(&error
);
290 if (!(ma
= pa_modargs_new(m
->argument
, valid_modargs
))) {
291 pa_log("Failed to parse module arguments");
295 if (!(connection
= pa_dbus_bus_get(m
->core
, DBUS_BUS_SYSTEM
, &error
)) || dbus_error_is_set(&error
)) {
298 pa_dbus_connection_unref(connection
);
300 pa_log_error("Unable to contact D-Bus system bus: %s: %s", error
.name
, error
.message
);
304 m
->userdata
= u
= pa_xnew0(struct userdata
, 1);
307 u
->connection
= connection
;
308 u
->sessions
= pa_hashmap_new(pa_idxset_string_hash_func
, pa_idxset_string_compare_func
);
310 if (!dbus_connection_add_filter(pa_dbus_connection_get(connection
), filter_cb
, u
, NULL
)) {
311 pa_log_error("Failed to add filter function");
315 u
->filter_added
= TRUE
;
317 if (pa_dbus_add_matches(
318 pa_dbus_connection_get(connection
), &error
,
319 "type='signal',sender='org.freedesktop.ConsoleKit',interface='org.freedesktop.ConsoleKit.Seat',member='SessionAdded'",
320 "type='signal',sender='org.freedesktop.ConsoleKit',interface='org.freedesktop.ConsoleKit.Seat',member='SessionRemoved'", NULL
) < 0) {
321 pa_log_error("Unable to subscribe to ConsoleKit signals: %s: %s", error
.name
, error
.message
);
325 if (get_session_list(u
) < 0)
336 dbus_error_free(&error
);
343 void pa__done(pa_module
*m
) {
345 struct session
*session
;
349 if (!(u
= m
->userdata
))
353 while ((session
= pa_hashmap_steal_first(u
->sessions
)))
354 free_session(session
);
356 pa_hashmap_free(u
->sessions
, NULL
, NULL
);
360 pa_dbus_remove_matches(
361 pa_dbus_connection_get(u
->connection
),
362 "type='signal',sender='org.freedesktop.ConsoleKit',interface='org.freedesktop.ConsoleKit.Seat',member='SessionAdded'",
363 "type='signal',sender='org.freedesktop.ConsoleKit',interface='org.freedesktop.ConsoleKit.Seat',member='SessionRemoved'", NULL
);
366 dbus_connection_remove_filter(pa_dbus_connection_get(u
->connection
), filter_cb
, u
);
368 pa_dbus_connection_unref(u
->connection
);