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rygel: add module that interfaces with Rygel UPnP

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This commit is contained in:
Lennart Poettering 2009-04-29 23:23:25 +02:00
parent 390fe02aa9
commit c95cc9e55f
2 changed files with 560 additions and 0 deletions
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11
src/Makefile.am
View file

@ -1060,6 +1060,11 @@ modlibexec_LTLIBRARIES += \
module-hal-detect.la
endif
if HAVE_DBUS
modlibexec_LTLIBRARIES += \
module-rygel-media-server.la
endif
if HAVE_BLUEZ
modlibexec_LTLIBRARIES += \
libbluetooth-util.la \
@ -1115,6 +1120,7 @@ SYMDEF_FILES = \
modules/module-mmkbd-evdev-symdef.h \
modules/module-http-protocol-tcp-symdef.h \
modules/module-http-protocol-unix-symdef.h \
modules/module-rygel-media-server-symdef.h \
modules/x11/module-x11-bell-symdef.h \
modules/x11/module-x11-publish-symdef.h \
modules/x11/module-x11-xsmp-symdef.h \
@ -1567,6 +1573,11 @@ module_raop_discover_la_LDFLAGS = $(MODULE_LDFLAGS)
module_raop_discover_la_LIBADD = $(AM_LIBADD) $(AVAHI_LIBS) libavahi-wrap.la libpulsecore-@PA_MAJORMINORMICRO@.la libpulsecommon-@PA_MAJORMINORMICRO@.la libpulse.la
module_raop_discover_la_CFLAGS = $(AM_CFLAGS) $(AVAHI_CFLAGS)
# Rygel
module_rygel_media_server_la_SOURCES = modules/module-rygel-media-server.c
module_rygel_media_server_la_LDFLAGS = $(MODULE_LDFLAGS)
module_rygel_media_server_la_LIBADD = $(AM_LIBADD) $(DBUS_LIBS) libpulsecore-@PA_MAJORMINORMICRO@.la libpulsecommon-@PA_MAJORMINORMICRO@.la libpulse.la libprotocol-http.la
module_rygel_media_server_la_CFLAGS = $(AM_CFLAGS) $(DBUS_CFLAGS)
###################################
# Some minor stuff #

549
src/modules/module-rygel-media-server.c Normal file
View file

@ -0,0 +1,549 @@
/***
This file is part of PulseAudio.
Copyright 2005-2009 Lennart Poettering
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2.1 of the License,
or (at your option) any later version.
PulseAudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with PulseAudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <pulse/xmalloc.h>
#include <pulse/util.h>
#include <pulse/i18n.h>
#include <pulsecore/sink.h>
#include <pulsecore/source.h>
#include <pulsecore/core-util.h>
#include <pulsecore/log.h>
#include <pulsecore/modargs.h>
#include <pulsecore/dbus-shared.h>
#include <pulsecore/endianmacros.h>
#include <pulsecore/namereg.h>
#include <pulsecore/mime-type.h>
#include <pulsecore/strbuf.h>
#include "module-rygel-media-server-symdef.h"
PA_MODULE_AUTHOR("Lennart Poettering");
PA_MODULE_DESCRIPTION("UPnP MediaServer Plugin for Rygel");
PA_MODULE_VERSION(PACKAGE_VERSION);
PA_MODULE_LOAD_ONCE(TRUE);
/* This implements http://live.gnome.org/action/edit/Rygel/MediaProviderSpec */
#define SERVICE_NAME "org.Rygel.MediaServer1.PulseAudio"
#define OBJECT_ROOT "/org/Rygel/MediaServer1/PulseAudio"
#define OBJECT_SINKS "/org/Rygel/MediaServer1/PulseAudio/Sinks"
#define OBJECT_SOURCES "/org/Rygel/MediaServer1/PulseAudio/Sources"
#define CONTAINER_INTROSPECT_XML_PREFIX \
DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
"<node>" \
" <!-- If you are looking for documentation make sure to check out" \
" http://live.gnome.org/Rygel/MediaProviderSpec -->" \
" <interface name=\"org.Rygel.MediaContainer1\">" \
" <method name=\"GetContainers\">" \
" <arg name=\"children\" type=\"ao\" direction=\"out\"/>" \
" </method>" \
" <method name=\"GetItems\">" \
" <arg name=\"children\" type=\"ao\" direction=\"out\"/>" \
" </method>" \
" <signal name=\"ItemAdded\">" \
" <arg name=\"path\" type=\"o\"/>" \
" </signal>" \
" <signal name=\"ItemRemoved\">" \
" <arg name=\"path\" type=\"o\"/>" \
" </signal>" \
" <signal name=\"ContainerAdded\">" \
" <arg name=\"path\" type=\"o\"/>" \
" </signal>" \
" <signal name=\"ContainerRemoved\">" \
" <arg name=\"path\" type=\"o\"/>" \
" </signal>" \
" </interface>" \
" <interface name=\"org.Rygel.MediaObject1\">" \
" <property name=\"display-name\" type=\"s\" access=\"read\"/>" \
" </interface>" \
" <interface name=\"org.freedesktop.DBus.Properties\">" \
" <method name=\"Get\">" \
" <arg name=\"interface\" direction=\"in\" type=\"s\"/>" \
" <arg name=\"property\" direction=\"in\" type=\"s\"/>" \
" <arg name=\"value\" direction=\"out\" type=\"v\"/>" \
" </method>" \
" </interface>" \
" <interface name=\"org.freedesktop.DBus.Introspectable\">" \
" <method name=\"Introspect\">" \
" <arg name=\"data\" type=\"s\" direction=\"out\"/>" \
" </method>" \
" </interface>"
#define CONTAINER_INTROSPECT_XML_POSTFIX \
"</node>"
#define ROOT_INTROSPECT_XML \
CONTAINER_INTROSPECT_XML_PREFIX \
"<node name=\"Sinks\"/>" \
"<node name=\"Sources\"/>" \
CONTAINER_INTROSPECT_XML_POSTFIX
#define ITEM_INTROSPECT_XML \
DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
"<node>" \
" <!-- If you are looking for documentation make sure to check out" \
" http://live.gnome.org/Rygel/MediaProviderSpec -->" \
" <interface name=\"org.Rygel.MediaItem1\">" \
" <property name=\"urls\" type=\"as\" access=\"read\"/>" \
" <property name=\"mime-type\" type=\"s\" access=\"read\"/>" \
" <property name=\"type\" type=\"s\" access=\"read\"/>" \
" </interface>" \
" <interface name=\"org.Rygel.MediaObject1\">" \
" <property name=\"display-name\" type=\"s\" access=\"read\"/>" \
" </interface>" \
" <interface name=\"org.freedesktop.DBus.Properties\">" \
" <method name=\"Get\">" \
" <arg name=\"interface\" direction=\"in\" type=\"s\"/>" \
" <arg name=\"property\" direction=\"in\" type=\"s\"/>" \
" <arg name=\"value\" direction=\"out\" type=\"v\"/>" \
" </method>" \
" </interface>" \
" <interface name=\"org.freedesktop.DBus.Introspectable\">" \
" <method name=\"Introspect\">" \
" <arg name=\"data\" type=\"s\" direction=\"out\"/>" \
" </method>" \
" </interface>" \
"</node>"
static const char* const valid_modargs[] = {
NULL
};
struct userdata {
pa_core *core;
pa_module *module;
pa_dbus_connection *bus;
pa_bool_t got_name:1;
pa_hook_slot *source_new_slot, *source_unlink_slot;
};
static void send_signal(struct userdata *u, pa_source *s, const char *name) {
DBusMessage *m;
char *child;
const char *parent;
pa_assert(u);
pa_source_assert_ref(s);
if (u->core->state == PA_CORE_SHUTDOWN)
return;
if (s->monitor_of) {
parent = OBJECT_SINKS;
child = pa_sprintf_malloc(OBJECT_SINKS "/%s", s->monitor_of->name);
} else {
parent = OBJECT_SOURCES;
child = pa_sprintf_malloc(OBJECT_SOURCES "/%s", s->name);
}
pa_assert_se(m = dbus_message_new_signal(parent, "org.Rygel.MediaContainer1", name));
pa_assert_se(dbus_message_append_args(m, DBUS_TYPE_OBJECT_PATH, &child, DBUS_TYPE_INVALID));
pa_assert_se(dbus_connection_send(pa_dbus_connection_get(u->bus), m, NULL));
pa_xfree(child);
dbus_message_unref(m);
}
static pa_hook_result_t source_new_cb(pa_core *c, pa_source *s, struct userdata *u) {
pa_assert(c);
pa_source_assert_ref(s);
send_signal(u, s, "ItemAdded");
return PA_HOOK_OK;
}
static pa_hook_result_t source_unlink_cb(pa_core *c, pa_source *s, struct userdata *u) {
pa_assert(c);
pa_source_assert_ref(s);
send_signal(u, s, "ItemRemoved");
return PA_HOOK_OK;
}
static pa_bool_t message_is_property_get(DBusMessage *m, const char *interface, const char *property) {
char *i, *p;
DBusError error;
dbus_error_init(&error);
pa_assert(m);
if (!dbus_message_is_method_call(m, "org.freedesktop.DBus.Properties", "Get"))
return FALSE;
if (!dbus_message_get_args(m, &error, DBUS_TYPE_STRING, &i, DBUS_TYPE_STRING, &p, DBUS_TYPE_INVALID) || dbus_error_is_set(&error)) {
dbus_error_free(&error);
return FALSE;
}
return pa_streq(i, interface) && pa_streq(p, property);
}
static void append_variant_string(DBusMessage *m, const char *s) {
DBusMessageIter iter, sub;
pa_assert(m);
pa_assert(s);
dbus_message_iter_init_append(m, &iter);
pa_assert_se(dbus_message_iter_open_container(&iter, DBUS_TYPE_VARIANT, "s", &sub));
pa_assert_se(dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &s));
pa_assert_se(dbus_message_iter_close_container(&iter, &sub));
}
static DBusHandlerResult root_handler(DBusConnection *c, DBusMessage *m, void *userdata) {
struct userdata *u = userdata;
DBusMessage *r = NULL;
pa_assert(u);
if (dbus_message_is_method_call(m, "org.Rygel.MediaContainer1", "GetContainers")) {
const char * array[] = { OBJECT_SINKS, OBJECT_SOURCES };
const char ** parray = array;
pa_assert_se(r = dbus_message_new_method_return(m));
pa_assert_se(dbus_message_append_args(
r,
DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH, &parray, 2,
DBUS_TYPE_INVALID));
} else if (dbus_message_is_method_call(m, "org.Rygel.MediaContainer1", "GetItems")) {
const char * array[] = { };
const char ** parray = array;
pa_assert_se(r = dbus_message_new_method_return(m));
pa_assert_se(dbus_message_append_args(
r,
DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH, &parray, 0,
DBUS_TYPE_INVALID));
} else if (message_is_property_get(m, "org.Rygel.MediaObject1", "display-name")) {
pa_assert_se(r = dbus_message_new_method_return(m));
append_variant_string(r, "PulseAudio");
} else if (dbus_message_is_method_call(m, "org.freedesktop.DBus.Introspectable", "Introspect")) {
const char *xml = ROOT_INTROSPECT_XML;
pa_assert_se(r = dbus_message_new_method_return(m));
pa_assert_se(dbus_message_append_args(
r,
DBUS_TYPE_STRING, &xml,
DBUS_TYPE_INVALID));
} else
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
if (r) {
pa_assert_se(dbus_connection_send(pa_dbus_connection_get(u->bus), r, NULL));
dbus_message_unref(r);
}
return DBUS_HANDLER_RESULT_HANDLED;
}
static DBusHandlerResult sinks_and_sources_handler(DBusConnection *c, DBusMessage *m, void *userdata) {
struct userdata *u = userdata;
DBusMessage *r = NULL;
const char *path;
pa_assert(u);
path = dbus_message_get_path(m);
if (pa_streq(path, OBJECT_SINKS) || pa_streq(path, OBJECT_SOURCES)) {
/* Container nodes */
if (dbus_message_is_method_call(m, "org.Rygel.MediaContainer1", "GetContainers")) {
const char * array[] = { };
const char ** parray = array;
pa_assert_se(r = dbus_message_new_method_return(m));
pa_assert_se(dbus_message_append_args(
r,
DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH, &parray, 0,
DBUS_TYPE_INVALID));
} else if (dbus_message_is_method_call(m, "org.Rygel.MediaContainer1", "GetItems")) {
unsigned n, i = 0;
char ** array;
uint32_t idx;
if (pa_streq(path, OBJECT_SINKS))
n = pa_idxset_size(u->core->sinks);
else
n = pa_idxset_size(u->core->sources);
array = pa_xnew(char*, n);
if (pa_streq(path, OBJECT_SINKS)) {
pa_sink *sink;
PA_IDXSET_FOREACH(sink, u->core->sinks, idx)
array[i++] = pa_sprintf_malloc(OBJECT_SINKS "/%u", sink->index);
} else {
pa_source *source;
PA_IDXSET_FOREACH(source, u->core->sources, idx)
if (!source->monitor_of)
array[i++] = pa_sprintf_malloc(OBJECT_SOURCES "/%u", source->index);
}
pa_assert(i <= n);
pa_assert_se(r = dbus_message_new_method_return(m));
pa_assert_se(dbus_message_append_args(
r,
DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH, &array, i,
DBUS_TYPE_INVALID));
for (; i >= 1; i--)
pa_xfree(array[i-1]);
pa_xfree(array);
} else if (message_is_property_get(m, "org.Rygel.MediaObject1", "display-name")) {
if (pa_streq(path, OBJECT_SINKS)) {
pa_assert_se(r = dbus_message_new_method_return(m));
append_variant_string(r, _("Output Devices"));
} else {
pa_assert_se(r = dbus_message_new_method_return(m));
append_variant_string(r, _("Input Devices"));
}
} else if (dbus_message_is_method_call(m, "org.freedesktop.DBus.Introspectable", "Introspect")) {
pa_strbuf *sb;
char *xml;
uint32_t idx;
sb = pa_strbuf_new();
pa_strbuf_puts(sb, CONTAINER_INTROSPECT_XML_PREFIX);
if (pa_streq(path, OBJECT_SINKS)) {
pa_sink *sink;
PA_IDXSET_FOREACH(sink, u->core->sinks, idx)
pa_strbuf_printf(sb, "<node name=\"%u\"/>", sink->index);
} else {
pa_source *source;
PA_IDXSET_FOREACH(source, u->core->sources, idx)
if (!source->monitor_of)
pa_strbuf_printf(sb, "<node name=\"%u\"/>", source->index);
}
pa_strbuf_puts(sb, CONTAINER_INTROSPECT_XML_POSTFIX);
xml = pa_strbuf_tostring_free(sb);
pa_assert_se(r = dbus_message_new_method_return(m));
pa_assert_se(dbus_message_append_args(
r,
DBUS_TYPE_STRING, &xml,
DBUS_TYPE_INVALID));
pa_xfree(xml);
}
} else {
pa_sink *sink = NULL;
pa_source *source = NULL;
/* Child nodes */
if (pa_startswith(path, OBJECT_SINKS "/"))
sink = pa_namereg_get(u->core, path + sizeof(OBJECT_SINKS), PA_NAMEREG_SINK);
else if (pa_startswith(path, OBJECT_SOURCES "/"))
source = pa_namereg_get(u->core, path + sizeof(OBJECT_SOURCES), PA_NAMEREG_SOURCE);
if (!sink && !source)
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
if (message_is_property_get(m, "org.Rygel.MediaObject1", "display-name")) {
pa_assert_se(r = dbus_message_new_method_return(m));
append_variant_string(r, pa_strna(pa_proplist_gets(sink ? sink->proplist : source->proplist, PA_PROP_DEVICE_DESCRIPTION)));
} else if (message_is_property_get(m, "org.Rygel.MediaItem1", "type")) {
pa_assert_se(r = dbus_message_new_method_return(m));
append_variant_string(r, "audio");
} else if (message_is_property_get(m, "org.Rygel.MediaItem1", "mime-type")) {
char *t;
if (sink)
t = pa_sample_spec_to_mime_type_mimefy(&sink->sample_spec, &sink->channel_map);
else
t = pa_sample_spec_to_mime_type_mimefy(&source->sample_spec, &source->channel_map);
pa_assert_se(r = dbus_message_new_method_return(m));
append_variant_string(r, t);
} else if (message_is_property_get(m, "org.Rygel.MediaItem1", "urls")) {
char * array[1];
char ** parray = array;
pa_assert_se(r = dbus_message_new_method_return(m));
array[0] = pa_sprintf_malloc("http://@ADDRESS@:4714/listen/source/%s",
sink ? sink->monitor_source->name : source->name);
pa_assert_se(dbus_message_append_args(
r,
DBUS_TYPE_ARRAY, DBUS_TYPE_STRING, &parray, 1,
DBUS_TYPE_INVALID));
pa_xfree(array[0]);
} else if (dbus_message_is_method_call(m, "org.freedesktop.DBus.Introspectable", "Introspect")) {
const char *xml =
ITEM_INTROSPECT_XML;
pa_assert_se(r = dbus_message_new_method_return(m));
pa_assert_se(dbus_message_append_args(
r,
DBUS_TYPE_STRING, &xml,
DBUS_TYPE_INVALID));
} else
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
}
if (r) {
pa_assert_se(dbus_connection_send(pa_dbus_connection_get(u->bus), r, NULL));
dbus_message_unref(r);
}
return DBUS_HANDLER_RESULT_HANDLED;
}
int pa__init(pa_module *m) {
struct userdata *u;
pa_modargs *ma = NULL;
DBusError error;
static const DBusObjectPathVTable vtable_root = {
.message_function = root_handler,
};
static const DBusObjectPathVTable vtable_sinks_and_sources = {
.message_function = sinks_and_sources_handler,
};
dbus_error_init(&error);
if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
pa_log("Failed to parse module arguments.");
goto fail;
}
m->userdata = u = pa_xnew0(struct userdata, 1);
u->core = m->core;
u->module = m;
u->source_new_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_PUT], PA_HOOK_LATE, (pa_hook_cb_t) source_new_cb, u);
u->source_unlink_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_UNLINK], PA_HOOK_LATE, (pa_hook_cb_t) source_unlink_cb, u);
if (!(u->bus = pa_dbus_bus_get(m->core, DBUS_BUS_SESSION, &error))) {
pa_log("Failed to get session bus connection: %s", error.message);
goto fail;
}
pa_assert_se(dbus_connection_register_object_path(pa_dbus_connection_get(u->bus), OBJECT_ROOT, &vtable_root, u));
pa_assert_se(dbus_connection_register_fallback(pa_dbus_connection_get(u->bus), OBJECT_SINKS, &vtable_sinks_and_sources, u));
pa_assert_se(dbus_connection_register_fallback(pa_dbus_connection_get(u->bus), OBJECT_SOURCES, &vtable_sinks_and_sources, u));
if (dbus_bus_request_name(pa_dbus_connection_get(u->bus), SERVICE_NAME, DBUS_NAME_FLAG_DO_NOT_QUEUE, &error) != DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER) {
pa_log("Failed to request service name " SERVICE_NAME ": %s", error.message);
goto fail;
}
u->got_name = TRUE;
pa_modargs_free(ma);
return 0;
fail:
pa__done(m);
if (ma)
pa_modargs_free(ma);
dbus_error_free(&error);
return -1;
}
void pa__done(pa_module*m) {
struct userdata*u;
pa_assert(m);
if (!(u = m->userdata))
return;
if (u->source_new_slot)
pa_hook_slot_free(u->source_new_slot);
if (u->source_unlink_slot)
pa_hook_slot_free(u->source_unlink_slot);
if (u->bus) {
DBusError error;
dbus_error_init(&error);
dbus_connection_unregister_object_path(pa_dbus_connection_get(u->bus), OBJECT_ROOT);
dbus_connection_unregister_object_path(pa_dbus_connection_get(u->bus), OBJECT_SINKS);
dbus_connection_unregister_object_path(pa_dbus_connection_get(u->bus), OBJECT_SOURCES);
if (u->got_name) {
if (dbus_bus_release_name(pa_dbus_connection_get(u->bus), SERVICE_NAME, &error) != DBUS_RELEASE_NAME_REPLY_RELEASED) {
pa_log("Failed to release service name " SERVICE_NAME ": %s", error.message);
dbus_error_free(&error);
}
}
pa_dbus_connection_unref(u->bus);
}
pa_xfree(u);
}