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X-Chat README
~~~~~~~~~~~~~
 X-Chat ("xchat") Copyright (c) 1998-2010 By Peter Zelezny.

 This program is released under the GPL v2 with the additional exemption
 that compiling, linking, and/or using OpenSSL is allowed. You may
 provide binary packages linked to the OpenSSL libraries, provided that
 all other requirements of the GPL are met. 
 See file COPYING for details.


What is it?
~~~~~~~~~~~
 X-Chat is an IRC client for UNIX operating systems. I.R.C. is Internet
 Relay Chat, see http://irchelp.org for more information about IRC in
 general. Xchat runs on most BSD and POSIX compliant operating systems.


Requirements:
~~~~~~~~~~~~~
 * GTK+ 2.10 (this is available at http://www.gtk.org).

 X-Chat is known to work on, at least:

	* Linux
	* FreeBSD
	* OpenBSD
	* NetBSD
	* Solaris
	* AIX
	* IRIX
	* DEC/Compaq Tru64 UNIX
	* HP-UX 10.20 and 11
	* MacOS X
	* Windows XP/2000/Vista/7


Notes for packagers:
~~~~~~~~~~~~~~~~~~~~

 If you need your packages to work on i386, you don't need to compile with
 --disable-mmx, because it's also checked at run-time.


Python Scripts:
~~~~~~~~~~~~~~~
 Scripts for 1.8.x are not compatible, and a brand new interface has be
 written. Documentation can be found here: http://xchat.org/docs/.
 Consider using the Python interface for your scripts, it's a very nice
 API, allows for loading/unloading individual scripts, and gives you
 almost all the features of the C-Plugin API.


Perl Scripts:
~~~~~~~~~~~~~
 Scripts for 1.8.x are compatible with the following exceptions:

* IRC::command will not interpret %C, %B, %U etc.

* user_list and user_list_short:
  If a user has both op and voice, only the op flag will be 1.

* add_user_list/sub_user_list/clear_user_list
  These functions do nothing.

* notify_list
  Not implemented. Always returns an empty list.

* server_list
  Lists servers that are not connected aswell.

* Some print events may have new names and some were added.

* Text printed by scripts must now be UTF8.

* Text passed to scripts (via add_message_handler) will be encoded in UTF8.


Autoloading Perl Scripts and Plugins
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 * X-Chat automatically loads, at startup:
	~/.xchat2/*.pl Perl scripts
	~/.xchat2/*.py Python scripts
	~/.xchat2/*.so Plugins
	$(libdir)/xchat/plugins/*.so plugins
	(this usually translates to /usr/lib/xchat/plugins/*.so)


Control Codes:
~~~~~~~~~~~~~~
 %%     -  A single percentage sign
 %C     -  Control-C (mIRC color code)
 %B     -  Bold Text
 %U     -  Underline Text
 %R     -  Reverse Text
 %O     -  Reset all Text attributes
 %XXX   -  ASCII XXX (where XXX is a decimal 3 digit number)
           (Eg: %007 sends a BEEP)

 %Cforeground,background will produce a color code, eg: %C03,10

 These are now disabled by default (see Settings > Prefs > Input Box).
 Instead you can insert the real codes via ctrl-k, ctrl-b and ctrl-o.
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/* X-Chat
 * Copyright (C) 1998 Peter Zelezny.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
 */

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <time.h>
#include <sys/types.h>
#include <sys/stat.h>

#define WANTSOCKET
#include "inet.h"

#ifdef WIN32
#include <windows.h>
#else
#include <sys/wait.h>
#include <signal.h>
#include <unistd.h>
#endif

#include "hexchat.h"
#include "fe.h"
#include "util.h"
#include "cfgfiles.h"
#include "chanopt.h"
#include "ignore.h"
#include "hexchat-plugin.h"
#include "plugin.h"
#include "plugin-timer.h"
#include "notify.h"
#include "server.h"
#include "servlist.h"
#include "outbound.h"
#include "text.h"
#include "url.h"
#include "hexchatc.h"

#ifdef USE_OPENSSL
#include <openssl/ssl.h>		  /* SSL_() */
#include "ssl.h"
#endif

#ifdef USE_MSPROXY
#include "msproxy.h"
#endif

#ifdef USE_LIBPROXY
#include <proxy.h>
#endif

GSList *popup_list = 0;
GSList *button_list = 0;
GSList *dlgbutton_list = 0;
GSList *command_list = 0;
GSList *ctcp_list = 0;
GSList *replace_list = 0;
GSList *sess_list = 0;
GSList *dcc_list = 0;
GSList *ignore_list = 0;
GSList *usermenu_list = 0;
GSList *urlhandler_list = 0;
GSList *tabmenu_list = 0;

static int in_xchat_exit = FALSE;
int xchat_is_quitting = FALSE;
/* command-line args */
int arg_dont_autoconnect = FALSE;
int arg_skip_plugins = FALSE;
char *arg_url = NULL;
char *arg_command = NULL;
gint arg_existing = FALSE;

#ifdef USE_DBUS
#include "dbus/dbus-client.h"
#include "dbus/dbus-plugin.h"
#endif /* USE_DBUS */

struct session *current_tab;
struct session *current_sess = 0;
struct hexchatprefs prefs;

#ifdef USE_OPENSSL
SSL_CTX *ctx = NULL;
#endif

#ifdef USE_LIBPROXY
pxProxyFactory *libproxy_factory;
#endif

int
is_session (session * sess)
{
	return g_slist_find (sess_list, sess) ? 1 : 0;
}

session *
find_dialog (server *serv, char *nick)
{
	GSList *list = sess_list;
	session *sess;

	while (list)
	{
		sess = list->data;
		if (sess->server == serv && sess->type == SESS_DIALOG)
		{
			if (!serv->p_cmp (nick, sess->channel))
				return (sess);
		}
		list = list->next;
	}
	return 0;
}

session *
find_channel (server *serv, char *chan)
{
	session *sess;
	GSList *list = sess_list;
	while (list)
	{
		sess = list->data;
		if ((!serv || serv == sess->server) && sess->type != SESS_DIALOG)
		{
			if (!serv->p_cmp (chan, sess->channel))
				return sess;
		}
		list = list->next;
	}
	return 0;
}

static void
lagcheck_update (void)
{
	server *serv;
	GSList *list = serv_list;
	
	if (!prefs.hex_gui_lagometer)
		return;

	while (list)
	{
		serv = list->data;
		if (serv->lag_sent)
			fe_set_lag (serv, -1);

		list = list->next;
	}
}

void
lag_check (void)
{
	server *serv;
	GSList *list = serv_list;
	unsigned long tim;
	char tbuf[128];
	time_t now = time (0);
	int lag;

	tim = make_ping_time ();

	while (list)
	{
		serv = list->data;
		if (serv->connected && serv->end_of_motd)
		{
			lag = now - serv->ping_recv;
			if (prefs.hex_net_ping_timeout && lag > prefs.hex_net_ping_timeout && lag > 0)
			{
				sprintf (tbuf, "%d", lag);
				EMIT_SIGNAL (XP_TE_PINGTIMEOUT, serv->server_session, tbuf, NULL,
								 NULL, NULL, 0);
				if (prefs.hex_net_auto_reconnect)
					serv->auto_reconnect (serv, FALSE, -1);
			} else
			{
				snprintf (tbuf, sizeof (tbuf), "LAG%lu", tim);
				serv->p_ping (serv, "", tbuf);
				serv->lag_sent = tim;
				fe_set_lag (serv, -1);
			}
		}
		list = list->next;
	}
}

static int
away_check (void)
{
	session *sess;
	GSList *list;
	int full, sent, loop = 0;

	if (!prefs.hex_away_track || prefs.hex_away_size_max < 1)
		return 1;

doover:
	/* request an update of AWAY status of 1 channel every 30 seconds */
	full = TRUE;
	sent = 0;	/* number of WHOs (users) requested */
	list = sess_list;
	while (list)
	{
		sess = list->data;

		if (sess->server->connected &&
			 sess->type == SESS_CHANNEL &&
			 sess->channel[0] &&
			 sess->total <= prefs.hex_away_size_max)
		{
			if (!sess->done_away_check)
			{
				full = FALSE;

				/* if we're under 31 WHOs, send another channels worth */
				if (sent < 31 && !sess->doing_who)
				{
					sess->done_away_check = TRUE;
					sess->doing_who = TRUE;
					/* this'll send a WHO #channel */
					sess->server->p_away_status (sess->server, sess->channel);
					sent += sess->total;
				}
			}
		}

		list = list->next;
	}

	/* done them all, reset done_away_check to FALSE and start over */
	if (full)
	{
		list = sess_list;
		while (list)
		{
			sess = list->data;
			sess->done_away_check = FALSE;
			list = list->next;
		}
		loop++;
		if (loop < 2)
			goto doover;
	}

	return 1;
}

static int
xchat_misc_checks (void)		/* this gets called every 1/2 second */
{
	static int count = 0;
#ifdef USE_MSPROXY
	static int count2 = 0;
#endif

	count++;

	lagcheck_update ();			/* every 500ms */

	if (count % 2)
		dcc_check_timeouts ();	/* every 1 second */

	if (count >= 60)				/* every 30 seconds */
	{
		if (prefs.hex_gui_lagometer)
			lag_check ();
		count = 0;
	}

#ifdef USE_MSPROXY	
	count2++;
	if (count2 >= 720)			/* 720 every 6 minutes */
	{
		msproxy_keepalive ();
		count2 = 0;
	}
#endif

	return 1;
}

/* executed when the first irc window opens */

static void
irc_init (session *sess)
{
	static int done_init = FALSE;
	char buf[512];

	if (done_init)
		return;

	done_init = TRUE;

	plugin_add (sess, NULL, NULL, timer_plugin_init, NULL, NULL, FALSE);

#ifdef USE_PLUGIN
	if (!arg_skip_plugins)
		plugin_auto_load (sess);	/* autoload ~/.xchat *.so */
#endif

#ifdef USE_DBUS
	plugin_add (sess, NULL, NULL, dbus_plugin_init, NULL, NULL, FALSE);
#endif

	if (prefs.hex_notify_timeout)
		notify_tag = fe_timeout_add (prefs.hex_notify_timeout * 1000,
											  notify_checklist, 0);

	fe_timeout_add (prefs.hex_away_timeout * 1000, away_check, 0);
	fe_timeout_add (500, xchat_misc_checks, 0);

	if (arg_url != NULL)
	{
		snprintf (buf, sizeof (buf), "server %s", arg_url);
		handle_command (sess, buf, FALSE);
		g_free (arg_url);	/* from GOption */
	}

	if (arg_command != NULL)
	{
		g_free (arg_command);
	}

	/* load -e ~/.xchat2/startup.txt */
	snprintf (buf, sizeof (buf), "%s/%s", get_xdir_fs (), "startup.txt");
	load_perform_file (sess, buf);
}

static session *
session_new (server *serv, char *from, int type, int focus)
{
	session *sess;

	sess = malloc (sizeof (struct session));
	if (sess == NULL)
	{
		return NULL;
	}
	memset (sess, 0, sizeof (struct session));

	sess->server = serv;
	sess->logfd = -1;
	sess->scrollfd = -1;
	sess->type = type;

	sess->alert_beep = SET_DEFAULT;
	sess->alert_taskbar = SET_DEFAULT;
	sess->alert_tray = SET_DEFAULT;

	sess->text_hidejoinpart = SET_DEFAULT;
	sess->text_logging = SET_DEFAULT;
	sess->text_scrollback = SET_DEFAULT;

	if (from != NULL)
		safe_strcpy (sess->channel, from, CHANLEN);

	sess_list = g_slist_prepend (sess_list, sess);

	fe_new_window (sess, focus);

	return sess;
}

session *
new_ircwindow (server *serv, char *name, int type, int focus)
{
	session *sess;

	switch (type)
	{
	case SESS_SERVER:
		serv = server_new ();
		if (prefs.hex_gui_tab_server)
			sess = session_new (serv, name, SESS_SERVER, focus);
		else
			sess = session_new (serv, name, SESS_CHANNEL, focus);
		serv->server_session = sess;
		serv->front_session = sess;
		break;
	case SESS_DIALOG:
		sess = session_new (serv, name, type, focus);
		log_open_or_close (sess);
		break;
	default:
/*	case SESS_CHANNEL:
	case SESS_NOTICES:
	case SESS_SNOTICES:*/
		sess = session_new (serv, name, type, focus);
		break;
	}

	irc_init (sess);
	scrollback_load (sess);
	chanopt_load (sess);
	plugin_emit_dummy_print (sess, "Open Context");

	return sess;
}

static void
exec_notify_kill (session * sess)
{
#ifndef WIN32
	struct nbexec *re;
	if (sess->running_exec != NULL)
	{
		re = sess->running_exec;
		sess->running_exec = NULL;
		kill (re->childpid, SIGKILL);
		waitpid (re->childpid, NULL, WNOHANG);
		fe_input_remove (re->iotag);
		close (re->myfd);
		if (re->linebuf)
			free(re->linebuf);
		free (re);
	}
#endif
}

static void
send_quit_or_part (session * killsess)
{
	int willquit = TRUE;
	GSList *list;
	session *sess;
	server *killserv = killsess->server;

	/* check if this is the last session using this server */
	list = sess_list;
	while (list)
	{
		sess = (session *) list->data;
		if (sess->server == killserv && sess != killsess)
		{
			willquit = FALSE;
			list = 0;
		} else
			list = list->next;
	}

	if (xchat_is_quitting)
		willquit = TRUE;

	if (killserv->connected)
	{
		if (willquit)
		{
			if (!killserv->sent_quit)
			{
				killserv->flush_queue (killserv);
				server_sendquit (killsess);
				killserv->sent_quit = TRUE;
			}
		} else
		{
			if (killsess->type == SESS_CHANNEL && killsess->channel[0] &&
				 !killserv->sent_quit)
			{
				server_sendpart (killserv, killsess->channel, 0);
			}
		}
	}
}

void
session_free (session *killsess)
{
	server *killserv = killsess->server;
	session *sess;
	GSList *list;

	plugin_emit_dummy_print (killsess, "Close Context");

	if (current_tab == killsess)
		current_tab = NULL;

	if (killserv->server_session == killsess)
		killserv->server_session = NULL;

	if (killserv->front_session == killsess)
	{
		/* front_session is closed, find a valid replacement */
		killserv->front_session = NULL;
		list = sess_list;
		while (list)
		{
			sess = (session *) list->data;
			if (sess != killsess && sess->server == killserv)
			{
				killserv->front_session = sess;
				if (!killserv->server_session)
					killserv->server_session = sess;
				break;
			}
			list = list->next;
		}
	}

	if (!killserv->server_session)
		killserv->server_session = killserv->front_session;

	sess_list = g_slist_remove (sess_list, killsess);

	if (killsess->type == SESS_CHANNEL)
		userlist_free (killsess);

	exec_notify_kill (killsess);

	log_close (killsess);
	scrollback_close (killsess);
	chanopt_save (killsess);

	send_quit_or_part (killsess);

	history_free (&killsess->history);
	if (killsess->topic)
		free (killsess->topic);
	if (killsess->current_modes)
		free (killsess->current_modes);

	fe_session_callback (killsess);

	if (current_sess == killsess)
	{
		current_sess = NULL;
		if (sess_list)
			current_sess = sess_list->data;
	}

	free (killsess);

	if (!sess_list && !in_xchat_exit)
		xchat_exit ();						/* sess_list is empty, quit! */

	list = sess_list;
	while (list)
	{
		sess = (session *) list->data;
		if (sess->server == killserv)
			return;					  /* this server is still being used! */
		list = list->next;
	}

	server_free (killserv);
}

static void
free_sessions (void)
{
	GSList *list = sess_list;

	while (list)
	{
		fe_close_window (list->data);
		list = sess_list;
	}
}


static char defaultconf_ctcp[] =
	"NAME TIME\n"				"CMD nctcp %s TIME %t\n\n"\
	"NAME PING\n"				"CMD nctcp %s PING %d\n\n";

static char defaultconf_replace[] =
	"NAME teh\n"				"CMD the\n\n";
/*	"NAME r\n"					"CMD are\n\n"\
	"NAME u\n"					"CMD you\n\n"*/

static char defaultconf_commands[] =
	"NAME ACTION\n"		"CMD me &2\n\n"\
	"NAME AME\n"			"CMD allchan me &2\n\n"\
	"NAME ANICK\n"			"CMD allserv nick &2\n\n"\
	"NAME AMSG\n"			"CMD allchan say &2\n\n"\
	"NAME BANLIST\n"		"CMD quote MODE %c +b\n\n"\
	"NAME CHAT\n"			"CMD dcc chat %2\n\n"\
	"NAME DIALOG\n"		"CMD query %2\n\n"\
	"NAME DMSG\n"			"CMD msg =%2 &3\n\n"\
	"NAME EXIT\n"			"CMD quit\n\n"\
	"NAME GREP\n"			"CMD lastlog -r -- &2\n\n"\
	"NAME IGNALL\n"			"CMD ignore %2!*@* ALL\n\n"\
	"NAME J\n"				"CMD join &2\n\n"\
	"NAME KILL\n"			"CMD quote KILL %2 :&3\n\n"\
	"NAME LEAVE\n"			"CMD part &2\n\n"\
	"NAME M\n"				"CMD msg &2\n\n"\
	"NAME ONOTICE\n"		"CMD notice @%c &2\n\n"\
	"NAME RAW\n"			"CMD quote &2\n\n"\
	"NAME SERVHELP\n"		"CMD quote HELP\n\n"\
	"NAME SPING\n"			"CMD ping\n\n"\
	"NAME SQUERY\n"		"CMD quote SQUERY %2 :&3\n\n"\
	"NAME SSLSERVER\n"	"CMD server -ssl &2\n\n"\
	"NAME SV\n"				"CMD echo xchat %v %m\n\n"\
	"NAME UMODE\n"			"CMD mode %n &2\n\n"\
	"NAME UPTIME\n"		"CMD quote STATS u\n\n"\
	"NAME VER\n"			"CMD ctcp %2 VERSION\n\n"\
	"NAME VERSION\n"		"CMD ctcp %2 VERSION\n\n"\
	"NAME WALLOPS\n"		"CMD quote WALLOPS :&2\n\n"\
	"NAME WII\n"			"CMD quote WHOIS %2 %2\n\n";

static char defaultconf_urlhandlers[] =
		"NAME Open Link in Opera\n"		"CMD !opera -remote 'openURL(%s)'\n\n";

#ifdef USE_SIGACTION
/* Close and open log files on SIGUSR1. Usefull for log rotating */

static void 
sigusr1_handler (int signal, siginfo_t *si, void *un)
{
	GSList *list = sess_list;
	session *sess;

	while (list)
	{
		sess = list->data;
		log_open_or_close (sess);
		list = list->next;
	}
}

/* Execute /SIGUSR2 when SIGUSR2 received */

static void
sigusr2_handler (int signal, siginfo_t *si, void *un)
{
	session *sess = current_sess;

	if (sess)
		handle_command (sess, "SIGUSR2", FALSE);
}
#endif

static gint
xchat_auto_connect (gpointer userdata)
{
	servlist_auto_connect (NULL);
	return 0;
}

static void
xchat_init (void)
{
	char buf[3068];
	const char *cs = NULL;

#ifdef WIN32
	WSADATA wsadata;

#ifdef USE_IPV6
	if (WSAStartup(0x0202, &wsadata) != 0)
	{
		MessageBox (NULL, "Cannot find winsock 2.2+", "Error", MB_OK);
		exit (0);
	}
#else
	WSAStartup(0x0101, &wsadata);
#endif	/* !USE_IPV6 */
#endif	/* !WIN32 */

#ifdef USE_SIGACTION
	struct sigaction act;

	/* ignore SIGPIPE's */
	act.sa_handler = SIG_IGN;
	act.sa_flags = 0;
	sigemptyset (&act.sa_mask);
	sigaction (SIGPIPE, &act, NULL);

	/* Deal with SIGUSR1's & SIGUSR2's */
	act.sa_sigaction = sigusr1_handler;
	act.sa_flags = 0;
	sigemptyset (&act.sa_mask);
	sigaction (SIGUSR1, &act, NULL);

	act.sa_sigaction = sigusr2_handler;
	act.sa_flags = 0;
	sigemptyset (&act.sa_mask);
	sigaction (SIGUSR2, &act, NULL);
#else
#ifndef WIN32
	/* good enough for these old systems */
	signal (SIGPIPE, SIG_IGN);
#endif
#endif

	if (g_get_charset (&cs))
		prefs.utf8_locale = TRUE;

	load_text_events ();
	sound_load ();
	notify_load ();
	ignore_load ();

	snprintf (buf, sizeof (buf),
		"NAME %s~%s~\n"				"CMD query %%s\n\n"\
		"NAME %s~%s~\n"				"CMD send %%s\n\n"\
		"NAME %s~%s~\n"				"CMD whois %%s %%s\n\n"\
		"NAME %s~%s~\n"				"CMD notify -n ASK %%s\n\n"\
		"NAME %s~%s~\n"				"CMD ignore %%s!*@* ALL\n\n"\

		"NAME SUB\n"					"CMD %s\n\n"\
			"NAME %s\n"					"CMD op %%a\n\n"\
			"NAME %s\n"					"CMD deop %%a\n\n"\
			"NAME SEP\n"				"CMD \n\n"\
			"NAME %s\n"					"CMD voice %%a\n\n"\
			"NAME %s\n"					"CMD devoice %%a\n"\
			"NAME SEP\n"				"CMD \n\n"\
			"NAME SUB\n"				"CMD %s\n\n"\
				"NAME %s\n"				"CMD kick %%s\n\n"\
				"NAME %s\n"				"CMD ban %%s\n\n"\
				"NAME SEP\n"			"CMD \n\n"\
				"NAME %s *!*@*.host\n""CMD ban %%s 0\n\n"\
				"NAME %s *!*@domain\n""CMD ban %%s 1\n\n"\
				"NAME %s *!*user@*.host\n""CMD ban %%s 2\n\n"\
				"NAME %s *!*user@domain\n""CMD ban %%s 3\n\n"\
				"NAME SEP\n"			"CMD \n\n"\
				"NAME %s *!*@*.host\n""CMD kickban %%s 0\n\n"\
				"NAME %s *!*@domain\n""CMD kickban %%s 1\n\n"\
				"NAME %s *!*user@*.host\n""CMD kickban %%s 2\n\n"\
				"NAME %s *!*user@domain\n""CMD kickban %%s 3\n\n"\
			"NAME ENDSUB\n"			"CMD \n\n"\
		"NAME ENDSUB\n"				"CMD \n\n",

		_("_Open Dialog Window"), "gtk-go-up",
		_("_Send a File"), "gtk-floppy",
		_("_User Info (WhoIs)"), "gtk-info",
		_("_Add to Friends List"), "gtk-add",
		_("_Ignore"), "gtk-stop",
		_("O_perator Actions"),

		_("Give Ops"),
		_("Take Ops"),
		_("Give Voice"),
		_("Take Voice"),

		_("Kick/Ban"),
		_("Kick"),
		_("Ban"),
		_("Ban"),
		_("Ban"),
		_("Ban"),
		_("Ban"),
		_("KickBan"),
		_("KickBan"),
		_("KickBan"),
		_("KickBan"));

	list_loadconf ("popup.conf", &popup_list, buf);

	snprintf (buf, sizeof (buf),
		"NAME %s\n"				"CMD part\n\n"
		"NAME %s\n"				"CMD getstr # join \"%s\"\n\n"
		"NAME %s\n"				"CMD quote LINKS\n\n"
		"NAME %s\n"				"CMD ping\n\n"
		"NAME TOGGLE %s\n"	"CMD irc_hide_version\n\n",
				_("Leave Channel"),
				_("Join Channel..."),
				_("Enter Channel to Join:"),
				_("Server Links"),
				_("Ping Server"),
				_("Hide Version"));
	list_loadconf ("usermenu.conf", &usermenu_list, buf);

	snprintf (buf, sizeof (buf),
		"NAME %s\n"		"CMD op %%a\n\n"
		"NAME %s\n"		"CMD deop %%a\n\n"
		"NAME %s\n"		"CMD ban %%s\n\n"
		"NAME %s\n"		"CMD getstr \"%s\" \"kick %%s\" \"%s\"\n\n"
		"NAME %s\n"		"CMD send %%s\n\n"
		"NAME %s\n"		"CMD query %%s\n\n",
				_("Op"),
				_("DeOp"),
				_("Ban"),
				_("Kick"),
				_("bye"),
				_("Enter reason to kick %s:"),
				_("Sendfile"),
				_("Dialog"));
	list_loadconf ("buttons.conf", &button_list, buf);

	snprintf (buf, sizeof (buf),
		"NAME %s\n"				"CMD whois %%s %%s\n\n"
		"NAME %s\n"				"CMD send %%s\n\n"
		"NAME %s\n"				"CMD dcc chat %%s\n\n"
		"NAME %s\n"				"CMD clear\n\n"
		"NAME %s\n"				"CMD ping %%s\n\n",
				_("WhoIs"),
				_("Send"),
				_("Chat"),
				_("Clear"),
				_("Ping"));
	list_loadconf ("dlgbuttons.conf", &dlgbutton_list, buf);

	list_loadconf ("tabmenu.conf", &tabmenu_list, NULL);
	list_loadconf ("ctcpreply.conf", &ctcp_list, defaultconf_ctcp);
	list_loadconf ("commands.conf", &command_list, defaultconf_commands);
	list_loadconf ("replace.conf", &replace_list, defaultconf_replace);
	list_loadconf ("urlhandlers.conf", &urlhandler_list,
						defaultconf_urlhandlers);

	servlist_init ();							/* load server list */

	/* if we got a URL, don't open the server list GUI */
	if (!prefs.hex_gui_slist_skip && !arg_url)
		fe_serverlist_open (NULL);

	/* turned OFF via -a arg */
	if (!arg_dont_autoconnect)
	{
		/* do any auto connects */
		if (!servlist_have_auto ())	/* if no new windows open .. */
		{
			/* and no serverlist gui ... */
			if (prefs.hex_gui_slist_skip || arg_url)
				/* we'll have to open one. */
				new_ircwindow (NULL, NULL, SESS_SERVER, 0);
		} else
		{
			fe_idle_add (xchat_auto_connect, NULL);
		}
	} else
	{
		if (prefs.hex_gui_slist_skip || arg_url)
			new_ircwindow (NULL, NULL, SESS_SERVER, 0);
	}
}

void
xchat_exit (void)
{
	xchat_is_quitting = TRUE;
	in_xchat_exit = TRUE;
	plugin_kill_all ();
	fe_cleanup ();

	save_config ();
	if (prefs.save_pevents)
	{
		pevent_save (NULL);
	}

	sound_save ();
	notify_save ();
	ignore_save ();
	free_sessions ();
	chanopt_save_all ();
	servlist_cleanup ();
	fe_exit ();
}

#ifndef WIN32

static int
child_handler (gpointer userdata)
{
	int pid = GPOINTER_TO_INT (userdata);

	if (waitpid (pid, 0, WNOHANG) == pid)
		return 0;					  /* remove timeout handler */
	return 1;						  /* keep the timeout handler */
}

#endif

void
xchat_exec (const char *cmd)
{
#ifdef WIN32
	util_exec (cmd);
#else
	int pid = util_exec (cmd);
	if (pid != -1)
	/* zombie avoiding system. Don't ask! it has to be like this to work
      with zvt (which overrides the default handler) */
		fe_timeout_add (1000, child_handler, GINT_TO_POINTER (pid));
#endif
}

void
xchat_execv (char * const argv[])
{
#ifdef WIN32
	util_execv (argv);
#else
	int pid = util_execv (argv);
	if (pid != -1)
	/* zombie avoiding system. Don't ask! it has to be like this to work
      with zvt (which overrides the default handler) */
		fe_timeout_add (1000, child_handler, GINT_TO_POINTER (pid));
#endif
}

#ifdef WIN32
static void
xchat_restore_window (HWND xchat_window)
{
	/* ShowWindow (xchat_window, SW_RESTORE); another way, but works worse */
	SendMessage (xchat_window, WM_SYSCOMMAND, SC_RESTORE, 0);
	SetForegroundWindow (xchat_window);
}

BOOL CALLBACK
enum_windows_impl (HWND current_window, LPARAM lParam)
{
	TCHAR window_name[8];
	TCHAR module_path[1024];
	ZeroMemory (&window_name, sizeof (window_name));

	if (!current_window)
	{
		return TRUE;
	}

	GetWindowText (current_window, window_name, 8);		/* name length + 1 */
	if (strcmp (window_name, "HexChat") == 0)
	{
		/* use a separate if block, this way we don't have to call GetWindowModuleFileName() for each hit */
		ZeroMemory (&module_path, sizeof (module_path));
		GetWindowModuleFileName (current_window, module_path, sizeof (module_path));

		if (strstr (module_path, "hexchat.exe"))	/* We've found it, stop */
		{
			xchat_restore_window (current_window);
			return FALSE;
		}
	}

	return TRUE;								/* Keep searching */

}
#endif

int
main (int argc, char *argv[])
{
	int ret;

#ifdef WIN32
	char hexchat_lang[13];	/* LC_ALL= plus 5 chars of hex_gui_lang and trailing \0 */
	HANDLE mutex;
#endif

	srand (time (0));	/* CL: do this only once! */

	load_config ();

#ifdef WIN32
	/* we MUST do this after load_config () AND before fe_init (thus gtk_init) otherwise it will fail */
	strcpy (hexchat_lang, "LC_ALL=");

	/* this must be ordered EXACTLY as langsmenu[] */
	switch (prefs.hex_gui_lang)
	{
		case 0:
			strcat (hexchat_lang, "af");
			break;
		case 1:
			strcat (hexchat_lang, "sq");
			break;
		case 2:
			strcat (hexchat_lang, "am");
			break;
		case 3:
			strcat (hexchat_lang, "ast");
			break;
		case 4:
			strcat (hexchat_lang, "az");
			break;
		case 5:
			strcat (hexchat_lang, "eu");
			break;
		case 6:
			strcat (hexchat_lang, "be");
			break;
		case 7:
			strcat (hexchat_lang, "bg");
			break;
		case 8:
			strcat (hexchat_lang, "ca");
			break;
		case 9:
			strcat (hexchat_lang, "zh_CN");
			break;
		case 10:
			strcat (hexchat_lang, "zh_TW");
			break;
		case 11:
			strcat (hexchat_lang, "cs");
			break;
		case 12:
			strcat (hexchat_lang, "da");
			break;
		case 13:
			strcat (hexchat_lang, "nl");
			break;
		case 14:
			strcat (hexchat_lang, "en_GB");
			break;
		case 15:
			strcat (hexchat_lang, "en");
			break;
		case 16:
			strcat (hexchat_lang, "et");
			break;
		case 17:
			strcat (hexchat_lang, "fi");
			break;
		case 18:
			strcat (hexchat_lang, "fr");
			break;
		case 19:
			strcat (hexchat_lang, "gl");
			break;
		case 20:
			strcat (hexchat_lang, "de");
			break;
		case 21:
			strcat (hexchat_lang, "el");
			break;
		case 22:
			strcat (hexchat_lang, "gu");
			break;
		case 23:
			strcat (hexchat_lang, "hi");
			break;
		case 24:
			strcat (hexchat_lang, "hu");
			break;
		case 25:
			strcat (hexchat_lang, "id");
			break;
		case 26:
			strcat (hexchat_lang, "it");
			break;
		case 27:
			strcat (hexchat_lang, "ja");
			break;
		case 28:
			strcat (hexchat_lang, "kn");
			break;
		case 29:
			strcat (hexchat_lang, "rw");
			break;
		case 30:
			strcat (hexchat_lang, "ko");
			break;
		case 31:
			strcat (hexchat_lang, "lv");
			break;
		case 32:
			strcat (hexchat_lang, "lt");
			break;
		case 33:
			strcat (hexchat_lang, "mk");
			break;
		case 34:
			strcat (hexchat_lang, "ml");
			break;
		case 35:
			strcat (hexchat_lang, "ms");
			break;
		case 36:
			strcat (hexchat_lang, "nb");
			break;
		case 37:
			strcat (hexchat_lang, "no");
			break;
		case 38:
			strcat (hexchat_lang, "pl");
			break;
		case 39:
			strcat (hexchat_lang, "pt");
			break;
		case 40:
			strcat (hexchat_lang, "pt_BR");
			break;
		case 41:
			strcat (hexchat_lang, "pa");
			break;
		case 42:
			strcat (hexchat_lang, "ru");
			break;
		case 43:
			strcat (hexchat_lang, "sr");
			break;
		case 44:
			strcat (hexchat_lang, "sk");
			break;
		case 45:
			strcat (hexchat_lang, "sl");
			break;
		case 46:
			strcat (hexchat_lang, "es");
			break;
		case 47:
			strcat (hexchat_lang, "sv");
			break;
		case 48:
			strcat (hexchat_lang, "th");
			break;
		case 49:
			strcat (hexchat_lang, "uk");
			break;
		case 50:
			strcat (hexchat_lang, "vi");
			break;
		case 51:
			strcat (hexchat_lang, "wa");
			break;
		default:
			strcat (hexchat_lang, "en");
			break;
	}

	putenv (hexchat_lang);

	if (prefs.hex_gui_single && !portable_mode ())
	{
		DWORD error;

		mutex = CreateMutex (NULL, TRUE, "Local\\hexchat");
		error = GetLastError ();

		if (error == ERROR_ALREADY_EXISTS || mutex == NULL)
		{
			/* restoring the XChat window from the tray via the taskbar icon
			 * only works correctly when X-Tray is used, but it's not a big deal
			 * since you can only minimize XChat to tray via the taskbar if you
			 * use X-Tray*/
			if (hextray_mode ())
			{
				/* FindWindow() doesn't support wildcards so we check all the open windows */
				EnumWindows (enum_windows_impl, NULL);
				return 0;
			}
			else
			{
				return 1;
			}
		}
	}
#endif

#ifdef SOCKS
	SOCKSinit (argv[0]);
#endif

	ret = fe_args (argc, argv);
	if (ret != -1)
		return ret;
	
#ifdef USE_DBUS
	xchat_remote ();
#endif

#ifdef USE_LIBPROXY
	libproxy_factory = px_proxy_factory_new();
#endif

	fe_init ();

	xchat_init ();

	fe_main ();

#ifdef USE_LIBPROXY
	px_proxy_factory_free(libproxy_factory);
#endif

#ifdef USE_OPENSSL
	if (ctx)
		_SSL_context_free (ctx);
#endif

#ifdef USE_DEBUG
	xchat_mem_list ();
#endif

#ifdef WIN32
	WSACleanup ();

	if (prefs.hex_gui_single && !portable_mode ())
	{
		ReleaseMutex (mutex);
		CloseHandle (mutex);
	}
#endif

	return 0;
}