plugins/irc.c

/*
 * gaim - IRC Protocol Plugin
 *
 * Copyright (C) 2000-2001, Rob Flynn <rob@tgflinux.com>
 * Copyright (C) 1998-1999, Mark Spencer <markster@marko.net>
 * 
 * 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 "../config.h"


#include <netdb.h>
#include <gtk/gtk.h>
#include <unistd.h>
#include <errno.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <fcntl.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include "multi.h"
#include "prpl.h"
#include "gaim.h"

#include "pixmaps/free_icon.xpm"

#define IRC_BUF_LEN 4096


static int chat_id = 0;

struct irc_channel {
	int id;
	gchar *name;
};

struct irc_data {
	int fd;
	int inpa;		/* used for non-block logins */

	int timer;

	int totalblocks;
	int recblocks;

	GSList *templist;
	GList *channels;
};

static char *irc_name()
{
	return "IRC";
}

static void irc_get_info(struct gaim_connection *gc, char *who);
	
char *name()
{
	return "IRC";
}

char *description()
{
	return "Allows gaim to use the IRC protocol";
}

static void irc_join_chat(struct gaim_connection *gc, int id, char *name)
{
	struct irc_data *idata = (struct irc_data *)gc->proto_data;
	gchar *buf = (gchar *) g_malloc(IRC_BUF_LEN + 1);

	g_snprintf(buf, IRC_BUF_LEN, "JOIN %s\n", name);
	write(idata->fd, buf, strlen(buf));

	g_free(buf);
}

static void irc_update_user(struct gaim_connection *gc, char *name, int status)
{
	struct irc_data *idata = (struct irc_data *)gc->proto_data;
	struct irc_channel *u;
	GSList *temp = idata->templist;

	/* Loop through our list */

	while (temp) {
		u = (struct irc_channel *)temp->data;
		if (g_strcasecmp(u->name, name) == 0) {
			u->id = status;
			return;
		}

		temp = g_slist_next(temp);
	}
	return;
}

static void irc_request_buddy_update(struct gaim_connection *gc)
{
	struct irc_data *idata = (struct irc_data *)gc->proto_data;
	GSList *grp = gc->groups;
	GSList *person;
	struct group *g;
	struct buddy *b;
	struct irc_channel *u;
	gchar buf[IRC_BUF_LEN + 1];

	if (idata->templist != NULL)
		return;

	idata->recblocks = 0;
	idata->totalblocks = 1;

	/* First, let's check to see if we have anyone on our buddylist */
	if (!grp) {
		return;
	}

	/* Send the first part of our request */
	write(idata->fd, "ISON", 4);

	/* Step through our list of groups */
	while (grp) {

		g = (struct group *)grp->data;
		person = g->members;

		while (person) {
			b = (struct buddy *)person->data;

			/* We will store our buddy info here.  I know, this is cheap
			 * but hey, its the exact same data structure.  Why should we
			 * bother with making another one */

			u = g_new0(struct irc_channel, 1);
			u->id = 0;	/* Assume by default that they're offline */
			u->name = strdup(b->name);

			write(idata->fd, " ", 1);
			write(idata->fd, u->name, strlen(u->name));
			idata->templist = g_slist_append(idata->templist, u);

			person = person->next;
		}

		grp = g_slist_next(grp);
	}
	write(idata->fd, "\n", 1);
}


static void irc_send_im(struct gaim_connection *gc, char *who, char *message, int away)
{

	struct irc_data *idata = (struct irc_data *)gc->proto_data;
	gchar *buf = (gchar *) g_malloc(IRC_BUF_LEN + 1);

	/* Before we actually send this, we should check to see if they're trying
	 * To issue a command and handle it properly. */

	if (message[0] == '/')
	{
		/* I'll change the implementation of this a little later :-) */
		if ((g_strncasecmp(message, "/me ", 4) == 0) && (strlen(message) > 4)) {
			/* We have /me!! We have /me!! :-) */

			gchar *temp = (gchar *) g_malloc(IRC_BUF_LEN + 1);
			strcpy(temp, message + 4);
			g_snprintf(buf, IRC_BUF_LEN, "PRIVMSG %s :%cACTION %s%c\n", who, '\001', temp, '\001');
			g_free(temp);
		} 
		else if (!g_strncasecmp(message, "/whois ", 7) && (strlen(message) > 7)) {
			gchar *temp = (gchar *) g_malloc(IRC_BUF_LEN + 1);
			strcpy(temp, message + 7);
			irc_get_info(gc, temp);
			g_free(temp);

			return;
		}	
				
	}
	else {
		g_snprintf(buf, IRC_BUF_LEN, "PRIVMSG %s :%s\n", who, message);
	}

	write(idata->fd, buf, strlen(buf));

	g_free(buf);
}

static int find_id_by_name(struct gaim_connection *gc, char *name)
{
	gchar *temp = (gchar *) g_malloc(IRC_BUF_LEN + 1);
	GList *templist;
	struct irc_channel *channel;

	templist = ((struct irc_data *)gc->proto_data)->channels;

	while (templist) {
		channel = (struct irc_channel *)templist->data;

		g_snprintf(temp, IRC_BUF_LEN, "#%s", channel->name);

		if (g_strcasecmp(temp, name) == 0) {
			g_free(temp);
			return channel->id;
		}

		templist = templist->next;
	}

	g_free(temp);

	/* Return -1 if we have no ID */
	return -1;
}

static struct irc_channel *find_channel_by_name(struct gaim_connection *gc, char *name)
{
	gchar *temp = (gchar *) g_malloc(IRC_BUF_LEN + 1);
	GList *templist;
	struct irc_channel *channel;

	templist = ((struct irc_data *)gc->proto_data)->channels;

	while (templist) {
		channel = (struct irc_channel *)templist->data;

		g_snprintf(temp, IRC_BUF_LEN, "%s", channel->name);

		if (g_strcasecmp(temp, name) == 0) {
			g_free(temp);
			return channel;
		}

		templist = templist->next;
	}

	g_free(temp);

	/* If we found nothing, return nothing :-) */
	return NULL;
}

static struct irc_channel *find_channel_by_id(struct gaim_connection *gc, int id)
{
	struct irc_data *idata = (struct irc_data *)gc->proto_data;
	struct irc_channel *channel;

	GList *temp;

	temp = idata->channels;

	while (temp) {
		channel = (struct irc_channel *)temp->data;

		if (channel->id == id) {
			/* We've found our man */
			return channel;
		}

		temp = temp->next;
	}


	/* If we didnt find one, return NULL */
	return NULL;
}

static void irc_chat_send(struct gaim_connection *gc, int id, char *message)
{

	struct irc_data *idata = (struct irc_data *)gc->proto_data;
	struct irc_channel *channel = NULL;
	gchar *buf = (gchar *) g_malloc(IRC_BUF_LEN + 1);

	/* First lets get our current channel */
	channel = find_channel_by_id(gc, id);


	if (!channel) {
		/* If for some reason we've lost our channel, let's bolt */
		g_free(buf);
		return;
	}


	/* Before we actually send this, we should check to see if they're trying
	 * To issue a command and handle it properly. */

	if (message[0] == '/')
	{
		if ((g_strncasecmp(message, "/me ", 4) == 0) && (strlen(message) > 4)) {
			/* We have /me!! We have /me!! :-) */

			gchar *temp = (gchar *) g_malloc(IRC_BUF_LEN + 1);
			strcpy(temp, message + 4);
			g_snprintf(buf, IRC_BUF_LEN, "PRIVMSG #%s :%cACTION %s%c\n", channel->name, '\001', temp,
				   '\001');
			g_free(temp);
		}
		else if (!g_strncasecmp(message, "/whois ", 7) && (strlen(message) > 7)) {
			gchar *temp = (gchar *) g_malloc(IRC_BUF_LEN + 1);

			strcpy(temp, message + 7);
			irc_get_info(gc, temp);
			g_free(temp);

			return;
		}	
	}
	else {
		g_snprintf(buf, IRC_BUF_LEN, "PRIVMSG #%s :%s\n", channel->name, message);
	}

	write(idata->fd, buf, strlen(buf));

	/* Since AIM expects us to receive the message we send, we gotta fake it */
	serv_got_chat_in(gc, id, gc->username, 0, message);

	g_free(buf);
}

static struct conversation *find_conversation_by_id(struct gaim_connection *gc, int id)
{
	struct irc_data *idata = (struct irc_data *)gc->proto_data;
	GSList *bc = gc->buddy_chats;
	struct conversation *b = NULL;

	while (bc) {
		b = (struct conversation *)bc->data;
		if (id == b->id) {
			break;
		}
		bc = bc->next;
		b = NULL;
	}

	if (!b) {
		return NULL;
	}

	return b;
}

static struct conversation *find_conversation_by_name(struct gaim_connection *gc, char *name)
{
	struct irc_data *idata = (struct irc_data *)gc->proto_data;
	GSList *bc = gc->buddy_chats;
	struct conversation *b = NULL;

	while (bc) {
		int x;
		b = (struct conversation *)bc->data;

		if (g_strcasecmp(name, b->name) == 0) {
			break;
		}
		bc = bc->next;
		b = NULL;
	}

	if (!b) {
		return NULL;
	}

	return b;
}


static void irc_callback(gpointer data, gint source, GdkInputCondition condition)
{
	struct gaim_connection *gc = data;
	int i = 0;
	gchar buf[4096];
	gchar **buf2;
	struct irc_data *idata;

	idata = (struct irc_data *)gc->proto_data;

	do {
		if (read(idata->fd, buf + i, 1) < 0) {
			hide_login_progress(gc, "Read error");
			signoff(gc);
			return;
		}
	} while (buf[i++] != '\n');

	buf[--i] = '\0';
	g_strchomp(buf);
	g_print("%s\n", buf);

	/* Check for errors */

	if (((strstr(buf, "ERROR :") && (!strstr(buf, "PRIVMSG ")) &&
	      (!strstr(buf, "NOTICE ")) && (strlen(buf) > 7)))) {

		gchar *u_errormsg;

		/* Let's get our error message */
		u_errormsg = g_strdup(buf + 7);

		/* We got our error message.  Now, let's reaise an
		 * error dialog */

		do_error_dialog(u_errormsg, "Gaim: IRC Error");

		/* And our necessary garbage collection */
		g_free(u_errormsg);
	}

	/* This should be a whois response. I only care about the first (311) one.  I might do
	 * the other's later. They're boring.  */

	if (((strstr(buf, " 311 ")) && (!strstr(buf, "PRIVMSG")) && (!strstr(buf, "NOTICE")))) {
		char **res;

		res = g_strsplit(buf, " ", 7);

		if (!strcmp(res[1], "311"))
		{
			char buf[8192];

			g_snprintf(buf, 4096, "<b>Nick:</b> %s<br>"
					"<b>Host:</b> %s@%s<br>"
					"<b>Name:</b> %s<br>", res[3], res[4], res[5], res[7]+1);

			g_show_info_text(buf);
		}

		g_strfreev(res);
	}

	/* Autoresponse to an away message */
	if (((strstr(buf, " 301 ")) && (!strstr(buf, "PRIVMSG")) && (!strstr(buf, "NOTICE")))) {
		char **res;

		res = g_strsplit(buf, " ", 5);

		if (!strcmp(res[1], "301"))
			serv_got_im(gc, res[3], res[4] + 1, 1);

		g_strfreev(res);
	}

	/* Parse the list of names that we receive when we first sign on to
	 * a channel */

	if (((strstr(buf, " 353 ")) && (!strstr(buf, "PRIVMSG")) && (!strstr(buf, "NOTICE")))) {
		gchar u_host[255];
		gchar u_command[32];
		gchar u_channel[128];
		gchar u_names[IRC_BUF_LEN + 1];
		struct conversation *convo = NULL;
		int j;

		for (j = 0, i = 0; buf[i] != ' '; j++, i++) {
			u_host[j] = buf[i];
		}

		u_host[j] = '\0';
		i++;

		for (j = 0; buf[i] != ' '; j++, i++) {
			u_command[j] = buf[i];
		}

		u_command[j] = '\0';
		i++;

		for (j = 0; buf[i] != '#'; j++, i++) {
		}
		i++;

		for (j = 0; buf[i] != ':'; j++, i++) {
			u_channel[j] = buf[i];
		}

		u_channel[j - 1] = '\0';
		i++;

		while ((buf[i] == ' ') || (buf[i] == ':')) {
			i++;
		}

		strcpy(u_names, buf + i);

		buf2 = g_strsplit(u_names, " ", 0);

		/* Let's get our conversation window */
		convo = find_conversation_by_name(gc, u_channel);

		if (!convo) {
			return;
		}

		/* Now that we've parsed the hell out of this big
		 * mess, let's try to split up the names properly */

		for (i = 0; buf2[i] != NULL; i++)
			add_chat_buddy(convo, buf2[i]);

		/* And free our pointers */
		g_strfreev(buf2);

		return;

	}

	/* Receive a list of users that are currently online */

	if (((strstr(buf, " 303 ")) && (!strstr(buf, "PRIVMSG")) && (!strstr(buf, "NOTICE")))) {
		gchar u_host[255];
		gchar u_command[32];
		gchar u_names[IRC_BUF_LEN + 1];
		int j;

		for (j = 0, i = 0; buf[i] != ' '; j++, i++) {
			u_host[j] = buf[i];
		}

		u_host[j] = '\0';
		i++;

		for (j = 0; buf[i] != ' '; j++, i++) {
			u_command[j] = buf[i];
		}

		u_command[j] = '\0';
		i++;

		for (j = 0; buf[i] != ':'; j++, i++) {
			/* My Nick */
		}
		i++;

		strcpy(u_names, buf + i);

		buf2 = g_strsplit(u_names, " ", 0);

		/* Now that we've parsed the hell out of this big
		 * mess, let's try to split up the names properly */

		for (i = 0; buf2[i] != NULL; i++) {
			/* If we have a name here then our buddy is online.  We should
			 * update our temporary gslist accordingly.  When we achieve our maximum
			 * list of names then we should force an update */

			irc_update_user(gc, buf2[i], 1);
		}

		/* Increase our received blocks counter */
		idata->recblocks++;

		/* If we have our total number of blocks */
		if (idata->recblocks == idata->totalblocks) {
			GSList *temp;
			struct irc_channel *u;

			/* Let's grab our list of people and bring them all on or off line */
			temp = idata->templist;

			/* Loop */
			while (temp) {

				u = temp->data;

				/* Tell Gaim to bring the person on or off line */
				serv_got_update(gc, u->name, u->id, 0, 0, 0, 0, 0);

				/* Grab the next entry */
				temp = g_slist_next(temp);
			}

			/* And now, let's delete all of our entries */
			temp = idata->templist;
			while (temp) {
				u = temp->data;
				g_free(u->name);
				temp = g_slist_remove(temp, u);
			}

			/* Reset our list */
			idata->totalblocks = 0;
			idata->recblocks = 0;

			idata->templist = NULL;

			return;
		}

		/* And free our pointers */
		g_strfreev(buf2);

		return;

	}


	if ((strstr(buf, " JOIN ")) && (buf[0] == ':') && (!strstr(buf, " NOTICE "))) {

		gchar u_channel[128];
		gchar u_nick[128];

		struct irc_channel *channel;
		int id;
		int j;

		for (j = 0, i = 1; buf[i] != '!'; j++, i++) {
			u_nick[j] = buf[i];
		}

		u_nick[j] = '\0';
		i++;

		for (j = 0; buf[i] != '#'; j++, i++) {
		}

		i++;

		strcpy(u_channel, buf + i);

		g_strchomp(u_channel);

		/* Looks like we're going to join the channel for real 
		 * now.  Let's create a valid channel structure and add 
		 * it to our list.  Let's make sure that
		 * we are not already in a channel first */

		channel = find_channel_by_name(gc, u_channel);

		if (!channel) {

			chat_id++;

			channel = g_new0(struct irc_channel, 1);

			channel->id = chat_id;
			channel->name = strdup(u_channel);

			idata->channels = g_list_append(idata->channels, channel);

			serv_got_joined_chat(gc, chat_id, u_channel);
		} else {
			struct conversation *convo = NULL;

			/* Someone else joined. Find their conversation
			 * window */
			convo = find_conversation_by_id(gc, channel->id);

			/* And add their name to it */
			add_chat_buddy(convo, u_nick);

		}

		return;
	}

	if ((strstr(buf, " NICK ")) && (buf[0] == ':') && (!strstr(buf, " NOTICE "))) {

		gchar old[128];
		gchar new[128];

		GList *templist;

		struct irc_channel *channel;
		int id;
		int j;

		for (j = 0, i = 1; buf[i] != '!'; j++, i++) {
			old[j] = buf[i];
		}

		old[j] = '\0';
		i++;

		for (j = 0; buf[i] != ':'; j++, i++) {
		}

		i++;
		strcpy(new, buf + i);

		g_strchomp(new);

		templist = ((struct irc_data *)gc->proto_data)->channels;

		while (templist) {
			struct conversation *convo = NULL;
			channel = templist->data;

			convo = find_conversation_by_id(gc, channel->id);

			rename_chat_buddy(convo, old, new);

			templist = templist->next;
		}
	}

	if ((strstr(buf, "QUIT ")) && (buf[0] == ':') && (!strstr(buf, " NOTICE "))) {

		gchar u_nick[128];

		GList *templist;

		struct irc_channel *channel;
		int j;

		for (j = 0, i = 1; buf[i] != '!'; j++, i++) {
			u_nick[j] = buf[i];
		}

		u_nick[j] = '\0';

		templist = ((struct irc_data *)gc->proto_data)->channels;

		while (templist) {
			struct conversation *convo = NULL;
			channel = templist->data;

			convo = find_conversation_by_id(gc, channel->id);

			remove_chat_buddy(convo, u_nick);

			templist = templist->next;
		}
	}

	if ((strstr(buf, " PART ")) && (buf[0] == ':') && (!strstr(buf, " NOTICE "))) {

		gchar u_channel[128];
		gchar u_nick[128];

		struct irc_channel *channel;
		int id;
		int j;
		GList *test = NULL;

		for (j = 0, i = 1; buf[i] != '!'; j++, i++) {
			u_nick[j] = buf[i];
		}
		u_nick[j] = '\0';

		i++;

		for (j = 0; buf[i] != '#'; j++, i++) {
		}

		i++;

		strcpy(u_channel, buf + i);


		/* Now, lets check to see if it was US that was leaving.  
		 * If so, do the correct thing by closing up all of our 
		 * old channel stuff. Otherwise,
		 * we should just print that someone left */

		channel = find_channel_by_name(gc, u_channel);

		if (!channel) {
			return;
		}

		if (g_strcasecmp(u_nick, gc->username) == 0) {

			/* Looks like we're going to leave the channel for 
			 * real now.  Let's create a valid channel structure 
			 * and add it to our list */

			serv_got_chat_left(gc, channel->id);

			idata->channels = g_list_remove(idata->channels, channel);
		} else {
			struct conversation *convo = NULL;

			/* Find their conversation window */
			convo = find_conversation_by_id(gc, channel->id);

			if (!convo) {
				/* Some how the window doesn't exist. 
				 * Let's get out of here */
				return;
			}

			/* And remove their name */
			remove_chat_buddy(convo, u_nick);

		}

		/* Go Home! */
		return;
	}

	if ((strstr(buf, " NOTICE ")) && (buf[0] == ':')) {
		gchar u_nick[128];
		gchar u_host[255];
		gchar u_command[32];
		gchar u_channel[128];
		gchar u_message[IRC_BUF_LEN];
		int j;
		int msgcode = 0;

		for (j = 0, i = 1; buf[i] != '!'; j++, i++) {
			u_nick[j] = buf[i];
		}

		u_nick[j] = '\0';
		i++;

		for (j = 0; buf[i] != ' '; j++, i++) {
			u_host[j] = buf[i];
		}

		u_host[j] = '\0';
		i++;

		for (j = 0; buf[i] != ' '; j++, i++) {
			u_command[j] = buf[i];
		}

		u_command[j] = '\0';
		i++;

		for (j = 0; buf[i] != ':'; j++, i++) {
			u_channel[j] = buf[i];
		}

		u_channel[j - 1] = '\0';
		i++;


		/* Now that everything is parsed, the rest of this baby must be our message */
		strncpy(u_message, buf + i, IRC_BUF_LEN);

		/* Now, lets check the message to see if there's anything special in it */
		if (u_message[0] == '\001') {
			if ((g_strncasecmp(u_message, "\001PING ", 6) == 0) && (strlen(u_message) > 6)) {
				/* Someone's triyng to ping us.  Let's respond */
				gchar u_arg[24];
				gchar u_buf[200];
				unsigned long tend= time((time_t *)NULL);
				unsigned long tstart;
				
				printf("LA: %s\n", buf);

				strcpy(u_arg, u_message + 6);
				u_arg[strlen(u_arg) - 1] = '\0';

				tstart = atol(u_arg);

				g_snprintf(u_buf, sizeof(u_buf), "Ping Reply From %s: [%ld seconds]", u_nick, tend-tstart);

				do_error_dialog(u_buf, "Gaim IRC - Ping Reply");

				return;
			}
		}

	}


	if ((strstr(buf, " PRIVMSG ")) && (buf[0] == ':')) {
		gchar u_nick[128];
		gchar u_host[255];
		gchar u_command[32];
		gchar u_channel[128];
		gchar u_message[IRC_BUF_LEN];
		int j;
		int msgcode = 0;

		for (j = 0, i = 1; buf[i] != '!'; j++, i++) {
			u_nick[j] = buf[i];
		}

		u_nick[j] = '\0';
		i++;

		for (j = 0; buf[i] != ' '; j++, i++) {
			u_host[j] = buf[i];
		}

		u_host[j] = '\0';
		i++;

		for (j = 0; buf[i] != ' '; j++, i++) {
			u_command[j] = buf[i];
		}

		u_command[j] = '\0';
		i++;

		for (j = 0; buf[i] != ':'; j++, i++) {
			u_channel[j] = buf[i];
		}

		u_channel[j - 1] = '\0';
		i++;


		/* Now that everything is parsed, the rest of this baby must be our message */
		strncpy(u_message, buf + i, IRC_BUF_LEN);

		/* Now, lets check the message to see if there's anything special in it */
		if (u_message[0] == '\001') {
			if (g_strncasecmp(u_message, "\001VERSION", 8) == 0) {
				/* Looks like we have a version request.  Let
				 * us handle it thusly */

				g_snprintf(buf, IRC_BUF_LEN,
					   "NOTICE %s :%cVERSION GAIM %s:The Pimpin Penguin AIM Clone:www.marko.net/gaim%c\n",
					   u_nick, '\001', VERSION, '\001');

				write(idata->fd, buf, strlen(buf));

				/* And get the heck out of dodge */
				return;
			}

			if ((g_strncasecmp(u_message, "\001PING ", 6) == 0) && (strlen(u_message) > 6)) {
				/* Someone's triyng to ping us.  Let's respond */
				gchar u_arg[24];

				strcpy(u_arg, u_message + 6);
				u_arg[strlen(u_arg) - 1] = '\0';

				g_snprintf(buf, IRC_BUF_LEN, "NOTICE %s :%cPING %s%c\n", u_nick, '\001',
					   u_arg, '\001');

				write(idata->fd, buf, strlen(buf));

				/* And get the heck out of dodge */
				return;
			}

			if (g_strncasecmp(u_message, "\001ACTION ", 8) == 0) {
				/* Looks like we have an action. Let's parse it a little */
				strcpy(buf, u_message);

				strcpy(u_message, "/me ");
				for (j = 4, i = 8; buf[i] != '\001'; i++, j++) {
					u_message[j] = buf[i];
				}
				u_message[j] = '\0';
			}
		}


		/* Let's check to see if we have a channel on our hands */
		if (u_channel[0] == '#') {
			/* Yup.  We have a channel */
			int id;

			id = find_id_by_name(gc, u_channel);
			if (id != -1) {
				serv_got_chat_in(gc, id, u_nick, 0, u_message);
			}
		} else {
			/* Nope. Let's treat it as a private message */
			serv_got_im(gc, u_nick, u_message, 0);
		}

		return;
	}

	/* Let's parse PING requests so that we wont get booted for inactivity */

	if (strncmp(buf, "PING :", 6) == 0) {
		buf2 = g_strsplit(buf, ":", 1);

		/* Let's build a new response */
		g_snprintf(buf, IRC_BUF_LEN, "PONG :%s\n", buf2[1]);
		write(idata->fd, buf, strlen(buf));

		/* And clean up after ourselves */
		g_strfreev(buf2);

		return;
	}

}

static void irc_close(struct gaim_connection *gc)
{
	struct irc_data *idata = (struct irc_data *)gc->proto_data;
	GList *chats = idata->channels;
	struct irc_channel *cc;

	gchar *buf = (gchar *) g_malloc(IRC_BUF_LEN);

	g_snprintf(buf, IRC_BUF_LEN, "QUIT :Download GAIM [www.marko.net/gaim]\n");
	write(idata->fd, buf, strlen(buf));

	g_free(buf);

	if (idata->timer)
		gtk_timeout_remove(idata->timer);

	while (chats) {
		cc = (struct irc_channel *)chats->data;
		g_free(cc->name);
		chats = g_list_remove(chats, cc);
		g_free(cc);
	}

	if (gc->inpa)
		gdk_input_remove(gc->inpa);

	if (idata->inpa)
		gdk_input_remove(idata->inpa);

	close(idata->fd);
	g_free(gc->proto_data);
}

static void irc_chat_leave(struct gaim_connection *gc, int id)
{
	struct irc_data *idata = (struct irc_data *)gc->proto_data;
	struct irc_channel *channel;
	gchar *buf = (gchar *) g_malloc(IRC_BUF_LEN + 1);

	channel = find_channel_by_id(gc, id);

	if (!channel) {
		return;
	}

	g_snprintf(buf, IRC_BUF_LEN, "PART #%s\n", channel->name);
	write(idata->fd, buf, strlen(buf));

	g_free(buf);
}

static void irc_login_callback(gpointer data, gint source, GdkInputCondition condition)
{
	struct gaim_connection *gc = data;
	struct irc_data *idata = gc->proto_data;
	char buf[4096];
	int len, error = ETIMEDOUT;

	len = sizeof(error);
	if (getsockopt(idata->fd, SOL_SOCKET, SO_ERROR, &error, &len) < 0)
		error = errno;
	if (error) {
		hide_login_progress(gc, "Couldn't connect");
		signoff(gc);
		return;
	}

	fcntl(idata->fd, F_SETFL, 0);

	g_snprintf(buf, 4096, "NICK %s\n USER %s localhost %s :GAIM (www.marko.net/gaim)\n",
		   gc->username, g_get_user_name(), gc->user->proto_opt[0]);

	if (write(idata->fd, buf, strlen(buf)) < 0) {
		hide_login_progress(gc, "Write error");
		signoff(gc);
		return;
	}

	gdk_input_remove(idata->inpa);
	idata->inpa = 0;

	/* Now lets sign ourselves on */
	account_online(gc);
	serv_finish_login(gc);

	if (bud_list_cache_exists(gc))
		do_import(NULL, gc);

	/* we don't call this now because otherwise some IRC servers might not like us */
	idata->timer = gtk_timeout_add(20000, (GtkFunction)irc_request_buddy_update, gc);
}

static void irc_login(struct aim_user *user)
{
	int fd;
	struct hostent *host;
	struct sockaddr_in site;
	char buf[4096];

	struct gaim_connection *gc = new_gaim_conn(user);
	struct irc_data *idata = gc->proto_data = g_new0(struct irc_data, 1);
	char c;
	int i;
	int status;

	host = gethostbyname(user->proto_opt[0]);
	if (!host) {
		hide_login_progress(gc, "Unable to resolve hostname");
		signoff(gc);
		return;
	}

	site.sin_family = AF_INET;
	site.sin_addr.s_addr = *(long *)(host->h_addr);
	
	if (user->proto_opt[1][0])
		site.sin_port = htons(atoi(user->proto_opt[1]));
	else {
		site.sin_port = htons(6667);
		g_snprintf(user->proto_opt[1], 5, "6667");
	}

	fd = socket(AF_INET, SOCK_STREAM, 0);
	if (fd < 0) {
		hide_login_progress(gc, "Unable to create socket");
		signoff(gc);
		return;
	}

	fcntl(fd, F_SETFL, O_NONBLOCK);
	if (connect(fd, (struct sockaddr *)&site, sizeof(site)) < 0) {
		if ((errno == EINPROGRESS) || (errno == EINTR)) {
			idata->inpa = gdk_input_add(idata->fd, GDK_INPUT_WRITE, irc_login_callback, gc);
		} else {
			hide_login_progress(gc, "Unable to connect.");
			signoff(gc);
			return;
		}
	}

	idata->fd = fd;

	g_snprintf(buf, sizeof(buf), "Signon: %s", gc->username);
	set_login_progress(gc, 2, buf);

	/* This is where we will attempt to sign on */

	if (!idata->inpa)
		irc_login_callback(gc, idata->fd, GDK_INPUT_READ);

	gc->inpa = gdk_input_add(idata->fd, GDK_INPUT_READ, irc_callback, gc);
}

static void irc_print_option(GtkEntry * entry, struct aim_user *user)
{
	if (gtk_object_get_user_data(GTK_OBJECT(entry))) {
		g_snprintf(user->proto_opt[1], sizeof(user->proto_opt[1]), "%s",
			   gtk_entry_get_text(entry));
	} else {
		g_snprintf(user->proto_opt[0], sizeof(user->proto_opt[0]), "%s",
			   gtk_entry_get_text(entry));
	}
}

static void irc_user_opts(GtkWidget * book, struct aim_user *user)
{
	/* so here, we create the new notebook page */
	GtkWidget *vbox;
	GtkWidget *hbox;
	GtkWidget *label;
	GtkWidget *entry;

	vbox = gtk_vbox_new(FALSE, 0);
	gtk_notebook_append_page(GTK_NOTEBOOK(book), vbox, gtk_label_new("IRC Options"));
	gtk_widget_show(vbox);

	hbox = gtk_hbox_new(FALSE, 0);
	gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 5);
	gtk_widget_show(hbox);

	label = gtk_label_new("Server:");
	gtk_box_pack_start(GTK_BOX(hbox), label, FALSE, FALSE, 5);
	gtk_widget_show(label);

	entry = gtk_entry_new();
	gtk_box_pack_end(GTK_BOX(hbox), entry, FALSE, FALSE, 5);
	gtk_signal_connect(GTK_OBJECT(entry), "changed", GTK_SIGNAL_FUNC(irc_print_option), user);
	if (user->proto_opt[0][0]) {
		debug_printf("setting text %s\n", user->proto_opt[0]);
		gtk_entry_set_text(GTK_ENTRY(entry), user->proto_opt[0]);
	}
	gtk_widget_show(entry);

	hbox = gtk_hbox_new(FALSE, 0);
	gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 5);
	gtk_widget_show(hbox);

	label = gtk_label_new("Port:");
	gtk_box_pack_start(GTK_BOX(hbox), label, FALSE, FALSE, 5);
	gtk_widget_show(label);

	entry = gtk_entry_new();
	gtk_box_pack_end(GTK_BOX(hbox), entry, FALSE, FALSE, 5);
	if (user->proto_opt[1][0]) {
		debug_printf("setting text %s\n", user->proto_opt[1]);
		gtk_entry_set_text(GTK_ENTRY(entry), user->proto_opt[1]);
	} else {
		gtk_entry_set_text(GTK_ENTRY(entry), "6667");
	}
	gtk_object_set_user_data(GTK_OBJECT(entry), user);
	gtk_signal_connect(GTK_OBJECT(entry), "changed", GTK_SIGNAL_FUNC(irc_print_option), user);
	gtk_widget_show(entry);
}

static char **irc_list_icon(int uc)
{
	return free_icon_xpm;
}

/* Send out a ping request to the specified user */
static void irc_send_ping(GtkObject * w, char *who)
{
	struct gaim_connection *gc = (struct gaim_connection *)gtk_object_get_user_data(w);
	struct irc_data *idata = (struct irc_data *)gc->proto_data;
	char buf[BUF_LEN];

	g_snprintf(buf, BUF_LEN, "PRIVMSG %s :%cPING %ld%c\n", who, '\001', time((time_t *)NULL), '\001');

	write(idata->fd, buf, strlen(buf));
}

/* Do a whois check on someone :-) */
static void irc_get_info(struct gaim_connection *gc, char *who)
{
	struct irc_data *idata = (struct irc_data *)gc->proto_data;
	char buf[BUF_LEN];

	if ((who[0] == '@') || (who[0] == '+') && (strlen(who)>1))
		g_snprintf(buf, BUF_LEN, "WHOIS %s\n", who+1);
	else
		g_snprintf(buf, BUF_LEN, "WHOIS %s\n", who);
	write(idata->fd, buf, strlen(buf));
}

static void irc_send_whois(GtkObject * w, char *who)
{
	struct gaim_connection *gc = (struct gaim_connection *)gtk_object_get_user_data(w);
	irc_get_info(gc, who);
}

static void irc_buddy_menu(GtkWidget * menu, struct gaim_connection *gc, char *who)
{
	GtkWidget *button;

	button = gtk_menu_item_new_with_label("Ping");
	gtk_signal_connect(GTK_OBJECT(button), "activate", GTK_SIGNAL_FUNC(irc_send_ping), who);
	gtk_object_set_user_data(GTK_OBJECT(button), gc);
	gtk_menu_append(GTK_MENU(menu), button);
	gtk_widget_show(button);

	button = gtk_menu_item_new_with_label("Whois");
	gtk_signal_connect(GTK_OBJECT(button), "activate", GTK_SIGNAL_FUNC(irc_send_whois), who);
	gtk_object_set_user_data(GTK_OBJECT(button), gc);
	gtk_menu_append(GTK_MENU(menu), button);
	gtk_widget_show(button);
}


static void irc_set_away(struct gaim_connection *gc, char *state, char *msg)
{
	struct irc_data *idata = (struct irc_data *)gc->proto_data;
	char buf[BUF_LEN];

	if (msg)
		g_snprintf(buf, BUF_LEN, "AWAY :%s\n", msg);		
	else
		g_snprintf(buf, BUF_LEN, "AWAY\n");		

	write(idata->fd, buf, strlen(buf));
}

static void irc_fake_buddy(struct gaim_connection *gc, char *who)
{
	/* Heh, there is no buddy list. We fake it.
	 * I just need this here so the add and remove buttons will
	 * show up */
}


static struct prpl *my_protocol = NULL;

static void irc_init(struct prpl *ret)
{
	ret->protocol = PROTO_IRC;
	ret->name = irc_name;
	ret->list_icon = irc_list_icon;
	ret->buddy_menu = irc_buddy_menu;
	ret->user_opts = irc_user_opts;
	ret->login = irc_login;
	ret->close = irc_close;
	ret->send_im = irc_send_im;
	ret->join_chat = irc_join_chat;
	ret->chat_leave = irc_chat_leave;
	ret->chat_send = irc_chat_send;
	ret->get_info = irc_get_info;
	ret->set_away = irc_set_away;
	ret->add_buddy = irc_fake_buddy;
	ret->remove_buddy = irc_fake_buddy;

	my_protocol = ret;
}

char *gaim_plugin_init(GModule * handle)
{
	load_protocol(irc_init, sizeof(struct prpl));
	return NULL;
}

void gaim_plugin_remove()
{
	struct prpl *p = find_prpl(PROTO_IRC);
	if (p == my_protocol)
		unload_protocol(p);
}