4 This file is part of PulseAudio.
6 Copyright 2004-2006 Lennart Poettering
8 PulseAudio is free software; you can redistribute it and/or modify
9 it under the terms of the GNU Lesser General Public License as published
10 by the Free Software Foundation; either version 2 of the License,
11 or (at your option) any later version.
13 PulseAudio is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with PulseAudio; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
35 #include <X11/Xatom.h>
37 #include <pulse/util.h>
38 #include <pulse/xmalloc.h>
40 #include <pulsecore/module.h>
41 #include <pulsecore/sink.h>
42 #include <pulsecore/core-scache.h>
43 #include <pulsecore/modargs.h>
44 #include <pulsecore/namereg.h>
45 #include <pulsecore/log.h>
46 #include <pulsecore/x11wrap.h>
47 #include <pulsecore/core-util.h>
48 #include <pulsecore/native-common.h>
49 #include <pulsecore/authkey-prop.h>
50 #include <pulsecore/authkey.h>
51 #include <pulsecore/x11prop.h>
52 #include <pulsecore/strlist.h>
53 #include <pulsecore/props.h>
55 #include "module-x11-publish-symdef.h"
57 PA_MODULE_AUTHOR("Lennart Poettering")
58 PA_MODULE_DESCRIPTION("X11 Credential Publisher")
59 PA_MODULE_VERSION(PACKAGE_VERSION)
60 PA_MODULE_USAGE("display=<X11 display>")
62 static const char* const valid_modargs[] = {
72 pa_x11_wrapper *x11_wrapper;
74 uint8_t auth_cookie[PA_NATIVE_COOKIE_LENGTH];
75 int auth_cookie_in_property;
78 static int load_key(struct userdata *u, const char*fn) {
81 u->auth_cookie_in_property = 0;
83 if (!fn && pa_authkey_prop_get(u->core, PA_NATIVE_COOKIE_PROPERTY_NAME, u->auth_cookie, sizeof(u->auth_cookie)) >= 0) {
84 pa_log_debug("using already loaded auth cookie.");
85 pa_authkey_prop_ref(u->core, PA_NATIVE_COOKIE_PROPERTY_NAME);
86 u->auth_cookie_in_property = 1;
91 fn = PA_NATIVE_COOKIE_FILE;
93 if (pa_authkey_load_auto(fn, u->auth_cookie, sizeof(u->auth_cookie)) < 0)
96 pa_log_debug("loading cookie from disk.");
98 if (pa_authkey_prop_put(u->core, PA_NATIVE_COOKIE_PROPERTY_NAME, u->auth_cookie, sizeof(u->auth_cookie)) >= 0)
99 u->auth_cookie_in_property = 1;
104 int pa__init(pa_core *c, pa_module*m) {
106 pa_modargs *ma = NULL;
107 char hn[256], un[128];
108 char hx[PA_NATIVE_COOKIE_LENGTH*2+1];
113 if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
114 pa_log("failed to parse module arguments");
118 m->userdata = u = pa_xmalloc(sizeof(struct userdata));
121 u->auth_cookie_in_property = 0;
123 if (load_key(u, pa_modargs_get_value(ma, "cookie", NULL)) < 0)
126 if (!(u->x11_wrapper = pa_x11_wrapper_get(c, pa_modargs_get_value(ma, "display", NULL))))
129 if (!(l = pa_property_get(c, PA_NATIVE_SERVER_PROPERTY_NAME)))
132 s = pa_strlist_tostring(l);
133 pa_x11_set_prop(pa_x11_wrapper_get_display(u->x11_wrapper), "PULSE_SERVER", s);
136 if (!pa_get_fqdn(hn, sizeof(hn)) || !pa_get_user_name(un, sizeof(un)))
139 u->id = pa_sprintf_malloc("%s@%s/%u", un, hn, (unsigned) getpid());
140 pa_x11_set_prop(pa_x11_wrapper_get_display(u->x11_wrapper), "PULSE_ID", u->id);
142 if ((t = pa_modargs_get_value(ma, "source", NULL)))
143 pa_x11_set_prop(pa_x11_wrapper_get_display(u->x11_wrapper), "PULSE_SOURCE", t);
145 if ((t = pa_modargs_get_value(ma, "sink", NULL)))
146 pa_x11_set_prop(pa_x11_wrapper_get_display(u->x11_wrapper), "PULSE_SINK", t);
148 pa_x11_set_prop(pa_x11_wrapper_get_display(u->x11_wrapper), "PULSE_COOKIE", pa_hexstr(u->auth_cookie, sizeof(u->auth_cookie), hx, sizeof(hx)));
161 void pa__done(pa_core *c, pa_module*m) {
165 if (!(u = m->userdata))
168 if (u->x11_wrapper) {
171 /* Yes, here is a race condition */
172 if (!pa_x11_get_prop(pa_x11_wrapper_get_display(u->x11_wrapper), "PULSE_ID", t, sizeof(t)) || strcmp(t, u->id))
173 pa_log_warn("PulseAudio information vanished from X11!");
175 pa_x11_del_prop(pa_x11_wrapper_get_display(u->x11_wrapper), "PULSE_ID");
176 pa_x11_del_prop(pa_x11_wrapper_get_display(u->x11_wrapper), "PULSE_SERVER");
177 pa_x11_del_prop(pa_x11_wrapper_get_display(u->x11_wrapper), "PULSE_SINK");
178 pa_x11_del_prop(pa_x11_wrapper_get_display(u->x11_wrapper), "PULSE_SOURCE");
179 pa_x11_del_prop(pa_x11_wrapper_get_display(u->x11_wrapper), "PULSE_COOKIE");
180 XSync(pa_x11_wrapper_get_display(u->x11_wrapper), False);
185 pa_x11_wrapper_unref(u->x11_wrapper);
187 if (u->auth_cookie_in_property)
188 pa_authkey_prop_unref(c, PA_NATIVE_COOKIE_PROPERTY_NAME);