const gchar *
ibus_get_local_machine_id (void)
{
static gchar *machine_id = NULL;
if (machine_id == NULL) {
gchar *id = dbus_get_local_machine_id ();
machine_id = g_strdup (id);
dbus_free (id);
}
return machine_id;
}
/* Read the machine uuid from file if needed. Returns TRUE if machine_uuid is
* set after this function */
static int
read_machine_uuid_if_needed (void)
{
if (machine_uuid != NULL)
return TRUE;
machine_uuid = dbus_get_local_machine_id ();
if (machine_uuid == NULL)
return FALSE;
verbose ("UID: %s\n", machine_uuid);
return TRUE;
}
char*
_fcitx_get_socket_path()
{
char* addressFile = NULL;
char* machineId = dbus_get_local_machine_id();
asprintf(&addressFile, "%s-%d", machineId, fcitx_utils_get_display_number());
dbus_free(machineId);
char* file = NULL;
FcitxXDGGetFileUserWithPrefix("dbus", addressFile, NULL, &file);
return file;
}
/**
* Process a message from D-Bus.
*/
static void
cdbus_process(session_t *ps, DBusMessage *msg) {
bool success = false;
#define cdbus_m_ismethod(method) \
dbus_message_is_method_call(msg, CDBUS_INTERFACE_NAME, method)
if (cdbus_m_ismethod("reset")) {
ps->reset = true;
if (!dbus_message_get_no_reply(msg))
cdbus_reply_bool(ps, msg, true);
success = true;
}
else if (cdbus_m_ismethod("repaint")) {
force_repaint(ps);
if (!dbus_message_get_no_reply(msg))
cdbus_reply_bool(ps, msg, true);
success = true;
}
else if (cdbus_m_ismethod("list_win")) {
success = cdbus_process_list_win(ps, msg);
}
else if (cdbus_m_ismethod("win_get")) {
success = cdbus_process_win_get(ps, msg);
}
else if (cdbus_m_ismethod("win_set")) {
success = cdbus_process_win_set(ps, msg);
}
else if (cdbus_m_ismethod("find_win")) {
success = cdbus_process_find_win(ps, msg);
}
else if (cdbus_m_ismethod("opts_get")) {
success = cdbus_process_opts_get(ps, msg);
}
else if (cdbus_m_ismethod("opts_set")) {
success = cdbus_process_opts_set(ps, msg);
}
#undef cdbus_m_ismethod
else if (dbus_message_is_method_call(msg,
"org.freedesktop.DBus.Introspectable", "Introspect")) {
success = cdbus_process_introspect(ps, msg);
}
else if (dbus_message_is_method_call(msg,
"org.freedesktop.DBus.Peer", "Ping")) {
cdbus_reply(ps, msg, NULL, NULL);
success = true;
}
else if (dbus_message_is_method_call(msg,
"org.freedesktop.DBus.Peer", "GetMachineId")) {
char *uuid = dbus_get_local_machine_id();
if (uuid) {
cdbus_reply_string(ps, msg, uuid);
dbus_free(uuid);
success = true;
}
}
else if (dbus_message_is_signal(msg, "org.freedesktop.DBus", "NameAcquired")
|| dbus_message_is_signal(msg, "org.freedesktop.DBus", "NameLost")) {
success = true;
}
else {
if (DBUS_MESSAGE_TYPE_ERROR == dbus_message_get_type(msg)) {
printf_errf("(): Error message of path \"%s\" "
"interface \"%s\", member \"%s\", error \"%s\"",
dbus_message_get_path(msg), dbus_message_get_interface(msg),
dbus_message_get_member(msg), dbus_message_get_error_name(msg));
}
else {
printf_errf("(): Illegal message of type \"%s\", path \"%s\" "
"interface \"%s\", member \"%s\"",
cdbus_repr_msgtype(msg), dbus_message_get_path(msg),
dbus_message_get_interface(msg), dbus_message_get_member(msg));
}
if (DBUS_MESSAGE_TYPE_METHOD_CALL == dbus_message_get_type(msg)
&& !dbus_message_get_no_reply(msg))
cdbus_reply_err(ps, msg, CDBUS_ERROR_BADMSG, CDBUS_ERROR_BADMSG_S);
success = true;
}
// If the message could not be processed, and an reply is expected, return
// an empty reply.
if (!success && DBUS_MESSAGE_TYPE_METHOD_CALL == dbus_message_get_type(msg)
&& !dbus_message_get_no_reply(msg))
cdbus_reply_err(ps, msg, CDBUS_ERROR_UNKNOWN, CDBUS_ERROR_UNKNOWN_S);
// Free the message
dbus_message_unref(msg);
}
void* DBusCreate(FcitxInstance* instance)
{
FcitxDBus *dbusmodule = (FcitxDBus*) fcitx_utils_malloc0(sizeof(FcitxDBus));
FcitxAddon* dbusaddon = FcitxAddonsGetAddonByName(FcitxInstanceGetAddons(instance), FCITX_DBUS_NAME);
dbusmodule->owner = instance;
DBusError err;
if (FcitxInstanceIsTryReplace(instance)) {
fcitx_utils_launch_tool("fcitx-remote", "-e");
sleep(1);
}
dbus_threads_init_default();
// first init dbus
dbus_error_init(&err);
int retry = 0;
DBusConnection* conn = NULL;
char* servicename = NULL;
asprintf(&servicename, "%s-%d", FCITX_DBUS_SERVICE,
fcitx_utils_get_display_number());
/* do session dbus initialize */
do {
if (!getenv("DISPLAY") && !getenv("DBUS_SESSION_BUS_ADDRESS")) {
FcitxLog(WARNING, "Without DISPLAY or DBUS_SESSION_BUS_ADDRESS session bus will not work");
break;
}
/* try to get session dbus */
while (1) {
conn = dbus_bus_get(DBUS_BUS_SESSION, &err);
if (dbus_error_is_set(&err)) {
FcitxLog(WARNING, "Connection Error (%s)", err.message);
dbus_error_free(&err);
dbus_error_init(&err);
}
if (NULL == conn && retry < MAX_RETRY_TIMES) {
retry ++;
sleep(RETRY_INTERVAL * retry);
} else {
break;
}
}
if (NULL == conn) {
break;
}
if (!dbus_connection_add_filter(conn, DBusModuleFilter, dbusmodule, NULL))
break;
if (!dbus_connection_set_watch_functions(conn, DBusAddWatch, DBusRemoveWatch,
NULL, &dbusmodule->watches, NULL)) {
FcitxLog(WARNING, "Add Watch Function Error");
dbus_error_free(&err);
dbus_error_init(&err);
dbus_connection_unref(conn);
conn = NULL;
break;
}
/* from here we know dbus connection is successful, now we need to register the service */
dbus_connection_set_exit_on_disconnect(conn, FALSE);
dbusmodule->conn = conn;
boolean request_retry = false;
int replaceCountdown = FcitxInstanceIsTryReplace(instance) ? 3 : 0;
FcitxInstanceResetTryReplace(instance);
do {
request_retry = false;
// request a name on the bus
int ret = dbus_bus_request_name(conn, servicename,
DBUS_NAME_FLAG_DO_NOT_QUEUE,
&err);
if (dbus_error_is_set(&err)) {
FcitxLog(WARNING, "Name Error (%s)", err.message);
goto dbus_init_failed;
}
if (DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER != ret) {
FcitxLog(WARNING, "DBus Service Already Exists");
if (replaceCountdown > 0) {
replaceCountdown --;
fcitx_utils_launch_tool("fcitx-remote", "-e");
/* sleep for a while and retry */
sleep(1);
request_retry = true;
continue;
}
/* if we know fcitx exists, we should exit. */
dbus_error_free(&err);
free(servicename);
free(dbusmodule);
FcitxInstanceEnd(instance);
return NULL;
}
} while (request_retry);
dbus_connection_flush(dbusmodule->conn);
} while(0);
DBusConnection* privconn = NULL;
do {
int noPrivateDBus = fcitx_utils_get_boolean_env("FCITX_NO_PRIVATE_DBUS", false);
if (noPrivateDBus)
break;
char* file;
FILE* dbusfp = FcitxXDGGetFileWithPrefix("dbus", "daemon.conf", "r", &file);
if (dbusfp) {
fclose(dbusfp);
}
else {
free(file);
file = NULL;
}
dbusmodule->daemon = DBusLaunch(file);
fcitx_utils_free(file);
if (dbusmodule->daemon.pid == 0)
break;
privconn = dbus_connection_open(dbusmodule->daemon.address, &err);
if (dbus_error_is_set(&err)) {
FcitxLog(ERROR, "Private dbus daemon connection error (%s)",
err.message);
break;
}
dbus_bus_register(privconn, &err);
if (dbus_error_is_set(&err)) {
FcitxLog(ERROR, "Private dbus bus register error (%s)", err.message);
break;
}
int ret = dbus_bus_request_name(privconn, servicename,
DBUS_NAME_FLAG_DO_NOT_QUEUE,
&err);
if (dbus_error_is_set(&err)) {
FcitxLog(WARNING, "Private Name Error (%s)", err.message);
break;
}
if (DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER != ret) {
FcitxLog(ERROR, "Private DBus Service Already Exists, fcitx being hacked?");
break;
}
if (!dbus_connection_add_filter(privconn, DBusModuleFilter, dbusmodule, NULL))
break;
if (!dbus_connection_set_watch_functions(privconn, DBusAddWatch, DBusRemoveWatch,
NULL, &dbusmodule->watches, NULL)) {
FcitxLog(WARNING, "Add Watch Function Error");
break;
}
char* addressFile = NULL;
char* localMachineId = dbus_get_local_machine_id();
asprintf(&addressFile, "%s-%d", localMachineId,
fcitx_utils_get_display_number());
dbus_free(localMachineId);
FILE* fp = FcitxXDGGetFileUserWithPrefix("dbus", addressFile, "w", NULL);
free(addressFile);
if (!fp)
break;
fprintf(fp, "%s", dbusmodule->daemon.address);
fwrite("\0", sizeof(char), 1, fp);
pid_t curPid = getpid();
fwrite(&dbusmodule->daemon.pid, sizeof(pid_t), 1, fp);
fwrite(&curPid, sizeof(pid_t), 1, fp);
fclose(fp);
dbusmodule->privconn = privconn;
char* command = fcitx_utils_get_fcitx_path_with_filename("bindir", "/fcitx-dbus-watcher");
char* pidstring = NULL;
asprintf(&pidstring, "%d", dbusmodule->daemon.pid);
char* args[] = {
command,
dbusmodule->daemon.address,
pidstring,
NULL
};
fcitx_utils_start_process(args);
free(command);
free(pidstring);
} while(0);
if (!dbusmodule->privconn) {
if (privconn) {
dbus_connection_unref(privconn);
DBusKill(&dbusmodule->daemon);
}
}
FcitxModuleAddFunction(dbusaddon, DBusGetConnection);
FcitxModuleAddFunction(dbusaddon, DBusGetPrivateConnection);
dbus_error_free(&err);
dbusmodule->serviceName = servicename;
return dbusmodule;
dbus_init_failed:
dbus_error_free(&err);
fcitx_utils_free(servicename);
if (conn)
dbus_connection_unref(conn);
DBusKill(&dbusmodule->daemon);
fcitx_utils_free(dbusmodule);
return NULL;
}