/* -*- mode: C; c-basic-offset: 4; indent-tabs-mode: nil; -*- */
/* vim:set et sts=4: */
/* ibus - The Input Bus
* Copyright (C) 2008-2013 Peng Huang <shawn.p.huang@gmail.com>
* Copyright (C) 2013-2018 Takao Fujiwara <takao.fujiwara1@gmail.com>
* Copyright (C) 2008-2018 Red Hat, Inc.
*
* This library 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.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
* USA
*/
#include <config.h>
#include <fcntl.h>
#include <glib.h>
#include <gio/gio.h>
#include <ibus.h>
#include <locale.h>
#include <pwd.h>
#include <signal.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include "global.h"
#include "ibusimpl.h"
#include "server.h"
static gboolean daemonize = FALSE;
static gboolean single = FALSE;
static gboolean xim = FALSE;
static gboolean replace = FALSE;
static gboolean restart = FALSE;
static gchar *panel = "default";
static gchar *emoji_extension = "default";
static gchar *config = "default";
static gchar *desktop = "gnome";
static gchar *panel_extension_disable_users[] = {
"gdm",
"liveuser"
};
static void
show_version_and_quit (void)
{
g_print ("%s - Version %s\n", g_get_application_name (), VERSION);
exit (EXIT_SUCCESS);
}
static const GOptionEntry entries[] =
{
{ "version", 'V', G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK, show_version_and_quit, "Show the application's version.", NULL },
{ "daemonize", 'd', 0, G_OPTION_ARG_NONE, &daemonize, "run ibus as background process.", NULL },
{ "single", 's', 0, G_OPTION_ARG_NONE, &single, "do not execute panel and config module.", NULL },
{ "xim", 'x', 0, G_OPTION_ARG_NONE, &xim, "execute ibus XIM server.", NULL },
{ "desktop", 'n', 0, G_OPTION_ARG_STRING, &desktop, "specify the name of desktop session. [default=gnome]", "name" },
{ "panel", 'p', 0, G_OPTION_ARG_STRING, &panel, "specify the cmdline of panel program. pass 'disable' not to start a panel program.", "cmdline" },
{ "emoji-extension", 'E', 0, G_OPTION_ARG_STRING, &emoji_extension, "specify the cmdline of emoji extension program. pass 'disable' not to start an extension program.", "cmdline" },
{ "config", 'c', 0, G_OPTION_ARG_STRING, &config, "specify the cmdline of config program. pass 'disable' not to start a config program.", "cmdline" },
{ "address", 'a', 0, G_OPTION_ARG_STRING, &g_address, "specify the address of ibus daemon.", "address" },
{ "replace", 'r', 0, G_OPTION_ARG_NONE, &replace, "if there is an old ibus-daemon is running, it will be replaced.", NULL },
{ "cache", 't', 0, G_OPTION_ARG_STRING, &g_cache, "specify the cache mode. [auto/refresh/none]", NULL },
{ "timeout", 'o', 0, G_OPTION_ARG_INT, &g_gdbus_timeout, "gdbus reply timeout in milliseconds. pass -1 to use the default timeout of gdbus.", "timeout [default is 15000]" },
{ "mem-profile", 'm', 0, G_OPTION_ARG_NONE, &g_mempro, "enable memory profile, send SIGUSR2 to print out the memory profile.", NULL },
{ "restart", 'R', 0, G_OPTION_ARG_NONE, &restart, "restart panel and config processes when they die.", NULL },
{ "verbose", 'v', 0, G_OPTION_ARG_NONE, &g_verbose, "verbose.", NULL },
{ NULL },
};
/**
* execute_cmdline:
* @cmdline: An absolute path of the executable and its parameters, e.g. "/usr/lib/ibus/ibus-x11 --kill-daemon".
* @returns: TRUE if both parsing cmdline and executing the command succeed.
*
* Execute cmdline. Child process's stdin, stdout, and stderr are attached to /dev/null.
* You don't have to handle SIGCHLD from the child process since glib will do.
*/
static gboolean
execute_cmdline (const gchar *cmdline)
{
g_assert (cmdline);
gint argc = 0;
gchar **argv = NULL;
GError *error = NULL;
if (!g_shell_parse_argv (cmdline, &argc, &argv, &error)) {
g_warning ("Can not parse cmdline `%s` exec: %s", cmdline, error->message);
g_error_free (error);
return FALSE;
}
error = NULL;
gboolean retval = g_spawn_async (NULL, argv, NULL,
G_SPAWN_STDOUT_TO_DEV_NULL | G_SPAWN_STDERR_TO_DEV_NULL,
NULL, NULL,
NULL, &error);
g_strfreev (argv);
if (!retval) {
g_warning ("Can not execute cmdline `%s`: %s", cmdline, error->message);
g_error_free (error);
return FALSE;
}
return TRUE;
}
#ifndef HAVE_DAEMON
static void
closeall (gint fd)
{
gint fdlimit = sysconf(_SC_OPEN_MAX);
while (fd < fdlimit) {
close(fd++);
}
}
static gint
daemon (gint nochdir, gint noclose)
{
switch (fork()) {
case 0: break;
case -1: return -1;
default: _exit(0);
}
if (setsid() < 0) {
return -1;
}
switch (fork()) {
case 0: break;
case -1: return -1;
default: _exit(0);
}
if (!nochdir) {
chdir("/");
}
if (!noclose) {
closeall(0);
open("/dev/null",O_RDWR);
dup(0); dup(0);
}
return 0;
}
#endif
gint
main (gint argc, gchar **argv)
{
int i;
const gchar *username = ibus_get_user_name ();
setlocale (LC_ALL, "");
GOptionContext *context = g_option_context_new ("- ibus daemon");
g_option_context_add_main_entries (context, entries, "ibus-daemon");
g_argv = g_strdupv (argv);
GError *error = NULL;
if (!g_option_context_parse (context, &argc, &argv, &error)) {
g_printerr ("Option parsing failed: %s\n", error->message);
g_error_free (error);
exit (-1);
}
if (g_gdbus_timeout < -1) {
g_printerr ("Bad timeout (must be >= -1): %d\n", g_gdbus_timeout);
exit (-1);
}
if (g_mempro) {
g_warning ("--mem-profile no longer works with the GLib 2.46 or later");
}
/* check uid */
{
struct passwd *pwd = getpwuid (getuid ());
if (pwd == NULL || g_strcmp0 (pwd->pw_name, username) != 0) {
g_printerr ("Please run ibus-daemon with login user! Do not run ibus-daemon with sudo or su.\n");
exit (-1);
}
}
/* daemonize process */
if (daemonize) {
if (daemon (1, 0) != 0) {
g_printerr ("Can not daemonize ibus.\n");
exit (-1);
}
}
/* create a new process group. this is important to kill all of its children by SIGTERM at a time in bus_ibus_impl_destroy. */
setpgid (0, 0);
ibus_init ();
ibus_set_log_handler (g_verbose);
/* check if ibus-daemon is running in this session */
if (ibus_get_address () != NULL) {
IBusBus *bus = ibus_bus_new ();
if (ibus_bus_is_connected (bus)) {
if (!replace) {
g_printerr ("current session already has an ibus-daemon.\n");
exit (-1);
}
ibus_bus_exit (bus, FALSE);
while (ibus_bus_is_connected (bus)) {
g_main_context_iteration (NULL, TRUE);
}
}
g_object_unref (bus);
}
bus_server_init ();
for (i = 0; i < G_N_ELEMENTS(panel_extension_disable_users); i++) {
if (!g_strcmp0 (username, panel_extension_disable_users[i]) != 0) {
emoji_extension = "disable";
break;
}
}
if (!single) {
/* execute config component */
if (g_strcmp0 (config, "default") == 0) {
BusComponent *component;
component = bus_ibus_impl_lookup_component_by_name (
BUS_DEFAULT_IBUS, IBUS_SERVICE_CONFIG);
if (component) {
bus_component_set_restart (component, restart);
}
if (component == NULL || !bus_component_start (component, g_verbose)) {
g_printerr ("Can not execute default config program\n");
exit (-1);
}
} else if (g_strcmp0 (config, "disable") != 0 && g_strcmp0 (config, "") != 0) {
if (!execute_cmdline (config))
exit (-1);
}
/* execute panel component */
if (g_strcmp0 (panel, "default") == 0) {
BusComponent *component;
component = bus_ibus_impl_lookup_component_by_name (
BUS_DEFAULT_IBUS, IBUS_SERVICE_PANEL);
if (component) {
bus_component_set_restart (component, restart);
}
if (component == NULL || !bus_component_start (component, g_verbose)) {
g_printerr ("Can not execute default panel program\n");
exit (-1);
}
} else if (g_strcmp0 (panel, "disable") != 0 && g_strcmp0 (panel, "") != 0) {
if (!execute_cmdline (panel))
exit (-1);
}
}
#ifdef EMOJI_DICT
if (g_strcmp0 (emoji_extension, "default") == 0) {
BusComponent *component;
component = bus_ibus_impl_lookup_component_by_name (
BUS_DEFAULT_IBUS, IBUS_SERVICE_PANEL_EXTENSION);
if (component) {
bus_component_set_restart (component, restart);
}
if (component != NULL &&
!bus_component_start (component, g_verbose)) {
g_printerr ("Can not execute default panel program\n");
exit (-1);
}
} else if (g_strcmp0 (emoji_extension, "disable") != 0 &&
g_strcmp0 (emoji_extension, "") != 0) {
if (!execute_cmdline (emoji_extension))
exit (-1);
}
#endif
/* execute ibus xim server */
if (xim) {
if (!execute_cmdline (LIBEXECDIR "/ibus-x11 --kill-daemon"))
exit (-1);
}
bus_server_run ();
return 0;
}