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-rw-r--r--src/modules/module-rygel-media-server.c549
1 files changed, 549 insertions, 0 deletions
diff --git a/src/modules/module-rygel-media-server.c b/src/modules/module-rygel-media-server.c
new file mode 100644
index 00000000..b8516128
--- /dev/null
+++ b/src/modules/module-rygel-media-server.c
@@ -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);
+}
generated by cgit (git 2.34.1) at 2024-11-16 12:02:43 +0000