--- /dev/null
+/***
+ This file is part of PulseAudio.
+
+ Copyright 2009 Tanu Kaskinen
+
+ 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
+
+#include <dbus/dbus.h>
+
+#include <pulse/client-conf.h>
+#include <pulse/xmalloc.h>
+
+#include <pulsecore/core-util.h>
+#include <pulsecore/dbus-shared.h>
+#include <pulsecore/macro.h>
+
+#include "server-lookup.h"
+
+struct pa_dbusobj_server_lookup {
+ pa_dbus_connection *conn;
+ pa_bool_t path_registered;
+ pa_daemon_conf_server_type_t server_type;
+};
+
+static const char introspection[] =
+ DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE
+ "<node>"
+ " <!-- If you are looking for documentation make sure to check out\n"
+ " http://pulseaudio.org/wiki/DBusInterface -->\n"
+ " <interface name=\"org.pulseaudio.ServerLookup\">"
+ " <method name=\"GetDBusServers\">"
+ " <arg name=\"result\" type=\"s\" direction=\"out\"/>"
+ " </method>"
+ " </interface>"
+ " <interface name=\"org.freedesktop.DBus.Introspectable\">"
+ " <method name=\"Introspect\">"
+ " <arg name=\"data\" type=\"s\" direction=\"out\"/>"
+ " </method>"
+ " </interface>"
+ "</node>";
+
+static void unregister_cb(DBusConnection *conn, void *user_data) {
+ pa_dbusobj_server_lookup *sl = user_data;
+
+ pa_assert(sl);
+ pa_assert(sl->path_registered);
+
+ sl->path_registered = FALSE;
+}
+
+static DBusHandlerResult handle_introspect(DBusConnection *conn, DBusMessage *msg, pa_dbusobj_server_lookup *sl) {
+ const char *i = introspection;
+ DBusMessage *reply = NULL;
+
+ pa_assert(conn);
+ pa_assert(msg);
+
+ if (!(reply = dbus_message_new_method_return(msg)))
+ goto fail;
+
+ if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &i, DBUS_TYPE_INVALID))
+ goto fail;
+
+ if (!dbus_connection_send(conn, reply, NULL))
+ goto oom;
+
+ dbus_message_unref(reply);
+
+ return DBUS_HANDLER_RESULT_HANDLED;
+
+fail:
+ if (reply)
+ dbus_message_unref(reply);
+
+ return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+
+oom:
+ if (reply)
+ dbus_message_unref(reply);
+
+ return DBUS_HANDLER_RESULT_NEED_MEMORY;
+}
+
+/* Caller frees the string. */
+static char *get_dbus_server_from_type(pa_daemon_conf_server_type_t server_type) {
+ char *server_string = NULL;
+ char *runtime_dir = NULL;
+
+ switch (server_type) {
+ case PA_SERVER_TYPE_USER:
+ runtime_dir = pa_get_runtime_dir();
+
+ if (!runtime_dir)
+ return NULL;
+
+ server_string = pa_sprintf_malloc("unix:path=%s/dbus_socket", runtime_dir);
+ break;
+
+ case PA_SERVER_TYPE_SYSTEM:
+ server_string = pa_xstrdup("unix:path=/var/run/pulse/dbus_socket");
+ break;
+
+ case PA_SERVER_TYPE_NONE:
+ server_string = pa_xnew0(char, 1);
+ break;
+
+ default:
+ pa_assert_not_reached();
+ }
+
+ return server_string;
+}
+
+static DBusHandlerResult handle_get_dbus_servers(DBusConnection *conn, DBusMessage *msg, pa_dbusobj_server_lookup *sl) {
+ DBusMessage *reply = NULL;
+ pa_client_conf *conf = NULL;
+ char *server_string = NULL;
+
+ pa_assert(conn);
+ pa_assert(msg);
+ pa_assert(sl);
+
+ conf = pa_client_conf_new();
+
+ if (pa_client_conf_load(conf, NULL) < 0) {
+ if (!(reply = dbus_message_new_error(msg, "org.pulseaudio.ClientConfLoadError", "Failed to load client.conf.")))
+ goto fail;
+ if (!dbus_connection_send(conn, reply, NULL))
+ goto oom;
+ return DBUS_HANDLER_RESULT_HANDLED;
+ }
+
+ server_string = pa_xstrdup(conf->default_dbus_server);
+
+ pa_client_conf_free(conf);
+
+ if (!server_string) {
+ if (!(server_string = get_dbus_server_from_type(sl->server_type))) {
+ if (!(reply = dbus_message_new_error(msg, DBUS_ERROR_FAILED, "get_dbus_server_from_type() failed.")))
+ goto fail;
+ if (!dbus_connection_send(conn, reply, NULL))
+ goto oom;
+ return DBUS_HANDLER_RESULT_HANDLED;
+ }
+ }
+
+ if (!(reply = dbus_message_new_method_return(msg)))
+ goto oom;
+
+ if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &server_string, DBUS_TYPE_INVALID))
+ goto fail;
+
+ if (!dbus_connection_send(conn, reply, NULL))
+ goto oom;
+
+ pa_log("Sent reply with server_string '%s'.", server_string);
+
+ pa_xfree(server_string);
+
+ dbus_message_unref(reply);
+
+ return DBUS_HANDLER_RESULT_HANDLED;
+
+fail:
+ if (conf)
+ pa_client_conf_free(conf);
+
+ pa_xfree(server_string);
+
+ if (reply)
+ dbus_message_unref(reply);
+
+ return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+
+oom:
+ if (conf)
+ pa_client_conf_free(conf);
+
+ pa_xfree(server_string);
+
+ if (reply)
+ dbus_message_unref(reply);
+
+ return DBUS_HANDLER_RESULT_NEED_MEMORY;
+}
+
+static DBusHandlerResult message_cb(DBusConnection *conn, DBusMessage *msg, void *user_data) {
+ pa_dbusobj_server_lookup *sl = user_data;
+
+ pa_assert(conn);
+ pa_assert(msg);
+ pa_assert(sl);
+
+ /* pa_log("Got message! type = %s path = %s iface = %s member = %s dest = %s", dbus_message_type_to_string(dbus_message_get_type(msg)), dbus_message_get_path(msg), dbus_message_get_interface(msg), dbus_message_get_member(msg), dbus_message_get_destination(msg)); */
+
+ if (dbus_message_is_method_call(msg, "org.freedesktop.DBus.Introspectable", "Introspect"))
+ return handle_introspect(conn, msg, sl);
+
+ if (dbus_message_is_method_call(msg, "org.pulseaudio.ServerLookup", "GetDBusServers"))
+ return handle_get_dbus_servers(conn, msg, sl);
+
+ return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+}
+
+static DBusObjectPathVTable vtable = {
+ .unregister_function = unregister_cb,
+ .message_function = message_cb,
+ .dbus_internal_pad1 = NULL,
+ .dbus_internal_pad2 = NULL,
+ .dbus_internal_pad3 = NULL,
+ .dbus_internal_pad4 = NULL
+};
+
+pa_dbusobj_server_lookup *pa_dbusobj_server_lookup_new(pa_core *c, pa_daemon_conf_server_type_t server_type) {
+ pa_dbusobj_server_lookup *sl;
+ DBusError error;
+
+ dbus_error_init(&error);
+
+ sl = pa_xnew(pa_dbusobj_server_lookup, 1);
+ sl->path_registered = FALSE;
+ sl->server_type = server_type;
+
+ if (!(sl->conn = pa_dbus_bus_get(c, DBUS_BUS_SESSION, &error)) || dbus_error_is_set(&error)) {
+ pa_log("Unable to contact D-Bus: %s: %s", error.name, error.message);
+ goto fail;
+ }
+
+ if (!dbus_connection_register_object_path(pa_dbus_connection_get(sl->conn), "/org/pulseaudio/server_lookup", &vtable, sl)) {
+ pa_log("dbus_connection_register_object_path() failed for /org/pulseaudio/server_lookup.");
+ goto fail;
+ }
+
+ sl->path_registered = TRUE;
+
+ return sl;
+
+fail:
+ dbus_error_free(&error);
+
+ pa_dbusobj_server_lookup_free(sl);
+
+ return NULL;
+}
+
+void pa_dbusobj_server_lookup_free(pa_dbusobj_server_lookup *sl) {
+ pa_assert(sl);
+
+ if (sl->path_registered) {
+ pa_assert(sl->conn);
+ if (!dbus_connection_unregister_object_path(pa_dbus_connection_get(sl->conn), "/org/pulseaudio/server_lookup"))
+ pa_log_debug("dbus_connection_unregister_object_path() failed for /org/pulseaudio/server_lookup.");
+ }
+
+ if (sl->conn)
+ pa_dbus_connection_unref(sl->conn);
+
+ pa_xfree(sl);
+}
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