diff options
Diffstat (limited to 'src/daemon/server-lookup.c')
-rw-r--r-- | src/daemon/server-lookup.c | 245 |
1 files changed, 245 insertions, 0 deletions
diff --git a/src/daemon/server-lookup.c b/src/daemon/server-lookup.c new file mode 100644 index 00000000..33d6b24c --- /dev/null +++ b/src/daemon/server-lookup.c @@ -0,0 +1,245 @@ +/*** + 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.h> +#include <pulsecore/core-util.h> +#include <pulsecore/dbus-common.h> +#include <pulsecore/dbus-shared.h> +#include <pulsecore/macro.h> + +#include "server-lookup.h" + +struct pa_dbusobj_server_lookup { + pa_core *core; + pa_dbus_connection *conn; + pa_bool_t path_registered; +}; + +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=\"GetAddress\">" + " <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; +} + +static DBusHandlerResult handle_get_address(DBusConnection *conn, DBusMessage *msg, pa_dbusobj_server_lookup *sl) { + DBusMessage *reply = NULL; + pa_client_conf *conf = NULL; + char *address = 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; + } + + if (conf->default_dbus_server) { + address = pa_xstrdup(conf->default_dbus_server); + } else { + if (!(address = pa_get_dbus_address_from_server_type(sl->core->server_type))) { + if (!(reply = dbus_message_new_error(msg, DBUS_ERROR_FAILED, "PulseAudio internal error: 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, &address, DBUS_TYPE_INVALID)) + goto fail; + + if (!dbus_connection_send(conn, reply, NULL)) + goto oom; + + pa_client_conf_free(conf); + pa_xfree(address); + dbus_message_unref(reply); + + return DBUS_HANDLER_RESULT_HANDLED; + +fail: + if (conf) + pa_client_conf_free(conf); + + pa_xfree(address); + + if (reply) + dbus_message_unref(reply); + + return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; + +oom: + if (conf) + pa_client_conf_free(conf); + + pa_xfree(address); + + 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", "GetAddress")) + return handle_get_address(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_dbusobj_server_lookup *sl; + DBusError error; + + dbus_error_init(&error); + + sl = pa_xnew(pa_dbusobj_server_lookup, 1); + sl->core = c; + sl->path_registered = FALSE; + + 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); +} |