summary refs log blame commit diff stats
path: root/src/common/proto-irc.c
blob: 2b83e992a50606071a89911e6b3972a921f04364 (plain) (tree)
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462



















                                                                            





                   



                   
                    










                     
                     
                




                                                    

                                                                                                      
                              
         
                                                                
         






















































































































































































































































































































































































































                                                                                           
                                      













                                                                        
                                                         



                                                                                 

                                                                      


                                               
                                                                       



























                                                                                                    
                                                                   

























































































































































































































































































































                                                                                                                                      
                                                                   


















































                                                                                        




                                                                           
                                                                                                                    
                                                      

                      






































































































































































































                                                                                                                        
                                                                                                 
                                                                                              
                                                                                               


































                                                                                                                                 


                          
                           









                                                                                                                           



                                                                                                                   
                                                                                                                                                

                                                                                                  


                                                                                                                             



                                                                             
                                                                                                                                   



                                                                                                     





                                                                                                                          

                                            
                                                                                                       


                                                                                      
                                                                              


                                                                              
 



                                       





























                                                                                                   



                                                                                         















                                                                                            

                                  






























                                                                              
                                                                            





































































                                                                              
/* X-Chat
 * Copyright (C) 2002 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
 */

/* IRC RFC1459(+commonly used extensions) protocol implementation */

#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <stdarg.h>

#ifndef WIN32
#include <unistd.h>
#endif

#include "hexchat.h"
#include "ctcp.h"
#include "fe.h"
#include "ignore.h"
#include "inbound.h"
#include "modes.h"
#include "notify.h"
#include "plugin.h"
#include "server.h"
#include "text.h"
#include "outbound.h"
#include "util.h"
#include "hexchatc.h"
#include "url.h"


static void
irc_login (server *serv, char *user, char *realname)
{
	tcp_sendf (serv, "CAP LS\r\n");		/* start with CAP LS as Charybdis sasl.txt suggests */

	if (serv->password[0])
	{
		tcp_sendf (serv, "PASS %s\r\n", serv->password);
	}

	tcp_sendf (serv,
				  "NICK %s\r\n"
				  "USER %s %s %s :%s\r\n",
				  serv->nick, user, user, serv->servername, realname);
}

static void
irc_nickserv (server *serv, char *cmd, char *arg1, char *arg2, char *arg3)
{
	/* are all ircd authors idiots? */
	switch (serv->nickservtype)
	{
	case 0:
		tcp_sendf (serv, "PRIVMSG NICKSERV :%s %s%s%s\r\n", cmd, arg1, arg2, arg3);
		break;
	case 1:
		tcp_sendf (serv, "NICKSERV %s %s%s%s\r\n", cmd, arg1, arg2, arg3);
		break;
	case 2:
		tcp_sendf (serv, "NS %s %s%s%s\r\n", cmd, arg1, arg2, arg3);
		break;
	case 3:
		tcp_sendf (serv, "PRIVMSG NS :%s %s%s%s\r\n", cmd, arg1, arg2, arg3);
		break;
	case 4:
		/* why couldn't QuakeNet implement one of the existing ones? */
		tcp_sendf (serv, "AUTH %s%s%s\r\n", cmd, arg1, arg2, arg3);
	}
}

static void
irc_ns_identify (server *serv, char *pass)
{
	irc_nickserv (serv, "IDENTIFY", pass, "", "");
}

static void
irc_ns_ghost (server *serv, char *usname, char *pass)
{
	if (serv->nickservtype != 4)
		irc_nickserv (serv, "GHOST", usname, " ", pass);
}

static void
irc_join (server *serv, char *channel, char *key)
{
	if (key[0])
		tcp_sendf (serv, "JOIN %s %s\r\n", channel, key);
	else
		tcp_sendf (serv, "JOIN %s\r\n", channel);
}

static void
irc_join_list_flush (server *serv, GString *c, GString *k)
{
	char *chanstr, *keystr;

	chanstr = g_string_free (c, FALSE);
	keystr = g_string_free (k, FALSE);
	if (chanstr[0])
	{
		if (keystr[0])
			tcp_sendf (serv, "JOIN %s %s\r\n", chanstr, keystr);
		else
			tcp_sendf (serv, "JOIN %s\r\n", chanstr);
	}
	g_free (chanstr);
	g_free (keystr);
}

/* join a whole list of channels & keys, split to multiple lines
 * to get around 512 limit */

static void
irc_join_list (server *serv, GSList *channels, GSList *keys)
{
	GSList *clist;
	GSList *klist;
	GString *c = g_string_new (NULL);
	GString *k = g_string_new (NULL);
	int len;
	int add;
	int i, j;

	i = j = 0;
	len = 9; /* "JOIN<space><space>\r\n" */
	clist = channels;
	klist = keys;

	while (clist)
	{
		/* measure how many bytes this channel would add... */
		if (1)
		{
			add = strlen (clist->data);
			if (i != 0)
				add++;	/* comma */
		}

		if (klist->data)
		{
			add += strlen (klist->data);
		}
		else
		{
			add++;	/* 'x' filler */
		}

		if (j != 0)
			add++;	/* comma */

		/* too big? dump buffer and start a fresh one */
		if (len + add > 512)
		{
			irc_join_list_flush (serv, c, k);

			c = g_string_new (NULL);
			k = g_string_new (NULL);
			i = j = 0;
			len = 9;
		}

		/* now actually add it to our GStrings */
		if (1)
		{
			add = strlen (clist->data);
			if (i != 0)
			{
				add++;
				g_string_append_c (c, ',');
			}
			g_string_append (c, clist->data);
			i++;
		}

		if (klist->data)
		{
			add += strlen (klist->data);
			if (j != 0)
			{
				add++;
				g_string_append_c (k, ',');
			}
			g_string_append (k, klist->data);
			j++;
		}
		else
		{
			add++;
			if (j != 0)
			{
				add++;
				g_string_append_c (k, ',');
			}
			g_string_append_c (k, 'x');
			j++;
		}

		len += add;

		klist = klist->next;
		clist = clist->next;
	}

	irc_join_list_flush (serv, c, k);
}

static void
irc_part (server *serv, char *channel, char *reason)
{
	if (reason[0])
		tcp_sendf (serv, "PART %s :%s\r\n", channel, reason);
	else
		tcp_sendf (serv, "PART %s\r\n", channel);
}

static void
irc_quit (server *serv, char *reason)
{
	if (reason[0])
		tcp_sendf (serv, "QUIT :%s\r\n", reason);
	else
		tcp_send_len (serv, "QUIT\r\n", 6);
}

static void
irc_set_back (server *serv)
{
	tcp_send_len (serv, "AWAY\r\n", 6);
}

static void
irc_set_away (server *serv, char *reason)
{
	if (reason)
	{
		if (!reason[0])
			reason = " ";
	}
	else
	{
		reason = " ";
	}

	tcp_sendf (serv, "AWAY :%s\r\n", reason);
}

static void
irc_ctcp (server *serv, char *to, char *msg)
{
	tcp_sendf (serv, "PRIVMSG %s :\001%s\001\r\n", to, msg);
}

static void
irc_nctcp (server *serv, char *to, char *msg)
{
	tcp_sendf (serv, "NOTICE %s :\001%s\001\r\n", to, msg);
}

static void
irc_cycle (server *serv, char *channel, char *key)
{
	tcp_sendf (serv, "PART %s\r\nJOIN %s %s\r\n", channel, channel, key);
}

static void
irc_kick (server *serv, char *channel, char *nick, char *reason)
{
	if (reason[0])
		tcp_sendf (serv, "KICK %s %s :%s\r\n", channel, nick, reason);
	else
		tcp_sendf (serv, "KICK %s %s\r\n", channel, nick);
}

static void
irc_invite (server *serv, char *channel, char *nick)
{
	tcp_sendf (serv, "INVITE %s %s\r\n", nick, channel);
}

static void
irc_mode (server *serv, char *target, char *mode)
{
	tcp_sendf (serv, "MODE %s %s\r\n", target, mode);
}

/* find channel info when joined */

static void
irc_join_info (server *serv, char *channel)
{
	tcp_sendf (serv, "MODE %s\r\n", channel);
}

/* initiate userlist retreival */

static void
irc_user_list (server *serv, char *channel)
{
	tcp_sendf (serv, "WHO %s\r\n", channel);
}

/* userhost */

static void
irc_userhost (server *serv, char *nick)
{
	tcp_sendf (serv, "USERHOST %s\r\n", nick);
}

static void
irc_away_status (server *serv, char *channel)
{
	if (serv->have_whox)
		tcp_sendf (serv, "WHO %s %%ctnf,152\r\n", channel);
	else
		tcp_sendf (serv, "WHO %s\r\n", channel);
}

/*static void
irc_get_ip (server *serv, char *nick)
{
	tcp_sendf (serv, "WHO %s\r\n", nick);
}*/


/*
 *  Command: WHOIS
 *     Parameters: [<server>] <nickmask>[,<nickmask>[,...]]
 */
static void
irc_user_whois (server *serv, char *nicks)
{
	tcp_sendf (serv, "WHOIS %s\r\n", nicks);
}

static void
irc_message (server *serv, char *channel, char *text)
{
	tcp_sendf (serv, "PRIVMSG %s :%s\r\n", channel, text);
}

static void
irc_action (server *serv, char *channel, char *act)
{
	tcp_sendf (serv, "PRIVMSG %s :\001ACTION %s\001\r\n", channel, act);
}

static void
irc_notice (server *serv, char *channel, char *text)
{
	tcp_sendf (serv, "NOTICE %s :%s\r\n", channel, text);
}

static void
irc_topic (server *serv, char *channel, char *topic)
{
	if (!topic)
		tcp_sendf (serv, "TOPIC %s :\r\n", channel);
	else if (topic[0])
		tcp_sendf (serv, "TOPIC %s :%s\r\n", channel, topic);
	else
		tcp_sendf (serv, "TOPIC %s\r\n", channel);
}

static void
irc_list_channels (server *serv, char *arg, int min_users)
{
	if (arg[0])
	{
		tcp_sendf (serv, "LIST %s\r\n", arg);
		return;
	}

	if (serv->use_listargs)
		tcp_sendf (serv, "LIST >%d,<10000\r\n", min_users - 1);
	else
		tcp_send_len (serv, "LIST\r\n", 6);
}

static void
irc_names (server *serv, char *channel)
{
	tcp_sendf (serv, "NAMES %s\r\n", channel);
}

static void
irc_change_nick (server *serv, char *new_nick)
{
	tcp_sendf (serv, "NICK %s\r\n", new_nick);
}

static void
irc_ping (server *serv, char *to, char *timestring)
{
	if (*to)
		tcp_sendf (serv, "PRIVMSG %s :\001PING %s\001\r\n", to, timestring);
	else
		tcp_sendf (serv, "PING %s\r\n", timestring);
}

static int
irc_raw (server *serv, char *raw)
{
	int len;
	char tbuf[4096];
	if (*raw)
	{
		len = strlen (raw);
		if (len < sizeof (tbuf) - 3)
		{
			len = snprintf (tbuf, sizeof (tbuf), "%s\r\n", raw);
			tcp_send_len (serv, tbuf, len);
		} else
		{
			tcp_send_len (serv, raw, len);
			tcp_send_len (serv, "\r\n", 2);
		}
		return TRUE;
	}
	return FALSE;
}

/* ============================================================== */
/* ======================= IRC INPUT ============================ */
/* ============================================================== */


static void
channel_date (session *sess, char *chan, char *timestr)
{
	time_t timestamp = (time_t) atol (timestr);
	char *tim = ctime (&timestamp);
	tim[24] = 0;	/* get rid of the \n */
	EMIT_SIGNAL (XP_TE_CHANDATE, sess, chan, tim, NULL, NULL, 0);
}

static void
process_numeric (session * sess, int n,
					  char *word[], char *word_eol[], char *text)
{
	server *serv = sess->server;
	/* show whois is the server tab */
	session *whois_sess = serv->server_session;

	/* unless this setting is on */
	if (prefs.hex_irc_whois_front)
		whois_sess = serv->front_session;

	switch (n)
	{
	case 1:
		inbound_login_start (sess, word[3], word[1]);
		/* if network is PTnet then you must get your IP address
			from "001" server message */
		if ((strncmp(word[7], "PTnet", 5) == 0) &&
			(strncmp(word[8], "IRC", 3) == 0) &&
			(strncmp(word[9], "Network", 7) == 0) &&
			(strrchr(word[10], '@') != NULL))
		{
			serv->use_who = FALSE;
			if (prefs.hex_dcc_ip_from_server)
				inbound_foundip (sess, strrchr(word[10], '@')+1);
		}

		/* use /NICKSERV */
		if (g_ascii_strcasecmp (word[7], "DALnet") == 0 ||
			 g_ascii_strcasecmp (word[7], "BRASnet") == 0)
			serv->nickservtype = 1;

		/* use /NS */
		else if (g_ascii_strcasecmp (word[7], "FreeNode") == 0)
			serv->nickservtype = 2;

		goto def;

	case 4:	/* check the ircd type */
		serv->use_listargs = FALSE;
		serv->modes_per_line = 3;		/* default to IRC RFC */
		if (strncmp (word[5], "bahamut", 7) == 0)				/* DALNet */
		{
			serv->use_listargs = TRUE;		/* use the /list args */
		} else if (strncmp (word[5], "u2.10.", 6) == 0)		/* Undernet */
		{
			serv->use_listargs = TRUE;		/* use the /list args */
			serv->modes_per_line = 6;		/* allow 6 modes per line */
		} else if (strncmp (word[5], "glx2", 4) == 0)
		{
			serv->use_listargs = TRUE;		/* use the /list args */
		}
		goto def;

	case 5:
		inbound_005 (serv, word);
		goto def;

	case 263:	/*Server load is temporarily too heavy */
		if (fe_is_chanwindow (sess->server))
		{
			fe_chan_list_end (sess->server);
			fe_message (word_eol[4] + 1, FE_MSG_ERROR);
		}
		goto def;

	case 290:	/* CAPAB reply */
		if (strstr (word_eol[1], "IDENTIFY-MSG"))
		{
			serv->have_idmsg = TRUE;
			break;
		}
		goto def;

	case 301:
		inbound_away (serv, word[4],
						(word_eol[5][0] == ':') ? word_eol[5] + 1 : word_eol[5]);
		break;

	case 302:
		if (serv->skip_next_userhost)
		{
			char *eq = strchr (word[4], '=');
			if (eq)
			{
				*eq = 0;
				if (!serv->p_cmp (word[4] + 1, serv->nick))
				{
					char *at = strrchr (eq + 1, '@');
					if (at)
						inbound_foundip (sess, at + 1);
				}
			}

			serv->skip_next_userhost = FALSE;
			break;
		}
		else goto def;

	case 303:
		word[4]++;
		notify_markonline (serv, word);
		break;

	case 305:
		inbound_uback (serv);
		goto def;

	case 306:
		inbound_uaway (serv);
		goto def;

	case 312:
		if (!serv->skip_next_whois)
			EMIT_SIGNAL (XP_TE_WHOIS3, whois_sess, word[4], word_eol[5], NULL, NULL, 0);
		else
			inbound_user_info (sess, NULL, NULL, NULL, word[5], word[4], NULL, 0xff);
		break;

	case 311:	/* WHOIS 1st line */
		serv->inside_whois = 1;
		inbound_user_info_start (sess, word[4]);
		if (!serv->skip_next_whois)
			EMIT_SIGNAL (XP_TE_WHOIS1, whois_sess, word[4], word[5],
							 word[6], word_eol[8] + 1, 0);
		else
			inbound_user_info (sess, NULL, word[5], word[6], NULL, word[4],
									 word_eol[8][0] == ':' ? word_eol[8] + 1 : word_eol[8], 0xff);
		break;

	case 314:	/* WHOWAS */
		inbound_user_info_start (sess, word[4]);
		EMIT_SIGNAL (XP_TE_WHOIS1, whois_sess, word[4], word[5],
						 word[6], word_eol[8] + 1, 0);
		break;

	case 317:
		if (!serv->skip_next_whois)
		{
			time_t timestamp = (time_t) atol (word[6]);
			long idle = atol (word[5]);
			char *tim;
			char outbuf[64];

			snprintf (outbuf, sizeof (outbuf),
						"%02ld:%02ld:%02ld", idle / 3600, (idle / 60) % 60,
						idle % 60);
			if (timestamp == 0)
				EMIT_SIGNAL (XP_TE_WHOIS4, whois_sess, word[4],
								 outbuf, NULL, NULL, 0);
			else
			{
				tim = ctime (&timestamp);
				tim[19] = 0; 	/* get rid of the \n */
				EMIT_SIGNAL (XP_TE_WHOIS4T, whois_sess, word[4],
								 outbuf, tim, NULL, 0);
			}
		}
		break;

	case 318:	/* END OF WHOIS */
		if (!serv->skip_next_whois)
			EMIT_SIGNAL (XP_TE_WHOIS6, whois_sess, word[4], NULL,
							 NULL, NULL, 0);
		serv->skip_next_whois = 0;
		serv->inside_whois = 0;
		break;

	case 313:
	case 319:
		if (!serv->skip_next_whois)
			EMIT_SIGNAL (XP_TE_WHOIS2, whois_sess, word[4],
							 word_eol[5] + 1, NULL, NULL, 0);
		break;

	case 307:	/* dalnet version */
	case 320:	/* :is an identified user */
		if (!serv->skip_next_whois)
			EMIT_SIGNAL (XP_TE_WHOIS_ID, whois_sess, word[4],
							 word_eol[5] + 1, NULL, NULL, 0);
		break;

	case 321:
		if (!fe_is_chanwindow (sess->server))
			EMIT_SIGNAL (XP_TE_CHANLISTHEAD, serv->server_session, NULL, NULL, NULL, NULL, 0);
		break;

	case 322:
		if (fe_is_chanwindow (sess->server))
		{
			fe_add_chan_list (sess->server, word[4], word[5], word_eol[6] + 1);
		} else
		{
			PrintTextf (serv->server_session, "%-16s %-7d %s\017\n",
							word[4], atoi (word[5]), word_eol[6] + 1);
		}
		break;

	case 323:
		if (!fe_is_chanwindow (sess->server))
			EMIT_SIGNAL (XP_TE_SERVTEXT, serv->server_session, text, word[1], word[2], NULL, 0);
		else
			fe_chan_list_end (sess->server);
		break;

	case 324:
		sess = find_channel (serv, word[4]);
		if (!sess)
			sess = serv->server_session;
		if (sess->ignore_mode)
			sess->ignore_mode = FALSE;
		else
			EMIT_SIGNAL (XP_TE_CHANMODES, sess, word[4], word_eol[5],
							 NULL, NULL, 0);
		fe_update_mode_buttons (sess, 't', '-');
		fe_update_mode_buttons (sess, 'n', '-');
		fe_update_mode_buttons (sess, 's', '-');
		fe_update_mode_buttons (sess, 'i', '-');
		fe_update_mode_buttons (sess, 'p', '-');
		fe_update_mode_buttons (sess, 'm', '-');
		fe_update_mode_buttons (sess, 'l', '-');
		fe_update_mode_buttons (sess, 'k', '-');
		handle_mode (serv, word, word_eol, "", TRUE);
		break;

	case 329:
		sess = find_channel (serv, word[4]);
		if (sess)
		{
			if (sess->ignore_date)
				sess->ignore_date = FALSE;
			else
				channel_date (sess, word[4], word[5]);
		}
		break;

	case 330:
		if (!serv->skip_next_whois)
			EMIT_SIGNAL (XP_TE_WHOIS_AUTH, whois_sess, word[4],
							 word_eol[6] + 1, word[5], NULL, 0);
		break;

	case 332:
		inbound_topic (serv, word[4],
						(word_eol[5][0] == ':') ? word_eol[5] + 1 : word_eol[5]);
		break;

	case 333:
		inbound_topictime (serv, word[4], word[5], atol (word[6]));
		break;

#if 0
	case 338:  /* Undernet Real user@host, Real IP */
		EMIT_SIGNAL (XP_TE_WHOIS_REALHOST, sess, word[4], word[5], word[6], 
			(word_eol[7][0]==':') ? word_eol[7]+1 : word_eol[7], 0);
		break;
#endif

	case 341:						  /* INVITE ACK */
		EMIT_SIGNAL (XP_TE_UINVITE, sess, word[4], word[5], serv->servername,
						 NULL, 0);
		break;

	case 352:						  /* WHO */
		{
			unsigned int away = 0;
			session *who_sess = find_channel (serv, word[4]);

			if (*word[9] == 'G')
				away = 1;

			inbound_user_info (sess, word[4], word[5], word[6], word[7],
									 word[8], word_eol[11], away);

			/* try to show only user initiated whos */
			if (!who_sess || !who_sess->doing_who)
				EMIT_SIGNAL (XP_TE_SERVTEXT, serv->server_session, text, word[1],
								 word[2], NULL, 0);
		}
		break;

	case 354:	/* undernet WHOX: used as a reply for irc_away_status */
		{
			unsigned int away = 0;
			session *who_sess;

			/* irc_away_status sends out a "152" */
			if (!strcmp (word[4], "152"))
			{
				who_sess = find_channel (serv, word[5]);

				if (*word[7] == 'G')
					away = 1;

				/* :SanJose.CA.us.undernet.org 354 z1 152 #zed1 z1 H@ */
				inbound_user_info (sess, word[5], 0, 0, 0, word[6], 0, away);

				/* try to show only user initiated whos */
				if (!who_sess || !who_sess->doing_who)
					EMIT_SIGNAL (XP_TE_SERVTEXT, serv->server_session, text,
									 word[1], word[2], NULL, 0);
			} else
				goto def;
		}
		break;

	case 315:						  /* END OF WHO */
		{
			session *who_sess;
			who_sess = find_channel (serv, word[4]);
			if (who_sess)
			{
				if (!who_sess->doing_who)
					EMIT_SIGNAL (XP_TE_SERVTEXT, serv->server_session, text,
									 word[1], word[2], NULL, 0);
				who_sess->doing_who = FALSE;
			} else
			{
				if (!serv->doing_dns)
					EMIT_SIGNAL (XP_TE_SERVTEXT, serv->server_session, text,
									 word[1], word[2], NULL, 0);
				serv->doing_dns = FALSE;
			}
		}
		break;

	case 348:	/* +e-list entry */
		if (!inbound_banlist (sess, atol (word[7]), word[4], word[5], word[6], TRUE))
			goto def;
		break;

	case 349:	/* end of exemption list */
		sess = find_channel (serv, word[4]);
		if (!sess)
		{
			sess = serv->front_session;
			goto def;
		}
		if (!fe_is_banwindow (sess))
			goto def;
		fe_ban_list_end (sess, TRUE);
		break;

	case 353:						  /* NAMES */
		inbound_nameslist (serv, word[5],
							(word_eol[6][0] == ':') ? word_eol[6] + 1 : word_eol[6]);
		break;

	case 366:
		if (!inbound_nameslist_end (serv, word[4]))
			goto def;
		break;

	case 367: /* banlist entry */
		inbound_banlist (sess, atol (word[7]), word[4], word[5], word[6], FALSE);
		break;

	case 368:
		sess = find_channel (serv, word[4]);
		if (!sess)
		{
			sess = serv->front_session;
			goto def;
		}
		if (!fe_is_banwindow (sess))
			goto def;
		fe_ban_list_end (sess, FALSE);
		break;

	case 369:	/* WHOWAS end */
	case 406:	/* WHOWAS error */
		EMIT_SIGNAL (XP_TE_SERVTEXT, whois_sess, text, word[1], word[2], NULL, 0);
		serv->inside_whois = 0;
		break;

	case 372:	/* motd text */
	case 375:	/* motd start */
		if (!prefs.hex_irc_skip_motd || serv->motd_skipped)
			EMIT_SIGNAL (XP_TE_MOTD, serv->server_session, text, NULL, NULL,
							 NULL, 0);
		break;

	case 376:	/* end of motd */
	case 422:	/* motd file is missing */
		inbound_login_end (sess, text);
		break;

	case 433:	/* nickname in use */
	case 432:	/* erroneous nickname */
		if (serv->end_of_motd)
			goto def;
		inbound_next_nick (sess,  word[4]);
		break;

	case 437:
		if (serv->end_of_motd || is_channel (serv, word[4]))
			goto def;
		inbound_next_nick (sess, word[4]);
		break;

	case 471:
		EMIT_SIGNAL (XP_TE_USERLIMIT, sess, word[4], NULL, NULL, NULL, 0);
		break;

	case 473:
		EMIT_SIGNAL (XP_TE_INVITE, sess, word[4], NULL, NULL, NULL, 0);
		break;

	case 474:
		EMIT_SIGNAL (XP_TE_BANNED, sess, word[4], NULL, NULL, NULL, 0);
		break;

	case 475:
		EMIT_SIGNAL (XP_TE_KEYWORD, sess, word[4], NULL, NULL, NULL, 0);
		break;

	case 601:
		notify_set_offline (serv, word[4], FALSE);
		break;

	case 605:
		notify_set_offline (serv, word[4], TRUE);
		break;

	case 600:
	case 604:
		notify_set_online (serv, word[4]);
		break;

	case 903:	/* successful SASL auth */
	case 904:	/* aborted SASL auth */
	case 905:	/* failed SASL auth */
	case 906:	/* registration completes before SASL auth */
	case 907:	/* attempting to re-auth after a successful auth */
		EMIT_SIGNAL (XP_TE_SASLRESPONSE, serv->server_session, word[1], word[2], word[3], ++word_eol[4], 0);
		tcp_send_len (serv, "CAP END\r\n", 9);
		break;

	default:

		if (serv->inside_whois && word[4][0])
		{
			/* some unknown WHOIS reply, ircd coders make them up weekly */
			if (!serv->skip_next_whois)
				EMIT_SIGNAL (XP_TE_WHOIS_SPECIAL, whois_sess, word[4],
								(word_eol[5][0] == ':') ? word_eol[5] + 1 : word_eol[5],
								 word[2], NULL, 0);
			return;
		}

	def:
		if (is_channel (serv, word[4]))
		{
			session *realsess = find_channel (serv, word[4]);
			if (!realsess)
				realsess = serv->server_session;
			EMIT_SIGNAL (XP_TE_SERVTEXT, realsess, text, word[1], word[2], NULL, 0);
		} else
		{
			EMIT_SIGNAL (XP_TE_SERVTEXT, serv->server_session, text, word[1],
							 word[2], NULL, 0);
		}
	}
}

/* handle named messages that starts with a ':' */

static void
process_named_msg (session *sess, char *type, char *word[], char *word_eol[])
{
	server *serv = sess->server;
	char ip[128], nick[NICKLEN];
	char *text, *ex;
	int len = strlen (type);

	/* fill in the "ip" and "nick" buffers */
	ex = strchr (word[1], '!');
	if (!ex)							  /* no '!', must be a server message */
	{
		safe_strcpy (ip, word[1], sizeof (ip));
		safe_strcpy (nick, word[1], sizeof (nick));
	} else
	{
		safe_strcpy (ip, ex + 1, sizeof (ip));
		ex[0] = 0;
		safe_strcpy (nick, word[1], sizeof (nick));
		ex[0] = '!';
	}

	if (len == 4)
	{
		guint32 t;

		t = WORDL((guint8)type[0], (guint8)type[1], (guint8)type[2], (guint8)type[3]); 	
		/* this should compile to a bunch of: CMP.L, JE ... nice & fast */
		switch (t)
		{
		case WORDL('J','O','I','N'):
			{
				char *chan = word[3];

				if (*chan == ':')
					chan++;
				if (!serv->p_cmp (nick, serv->nick))
					inbound_ujoin (serv, chan, nick, ip);
				else
					inbound_join (serv, chan, nick, ip);
			}
			return;

		case WORDL('K','I','C','K'):
			{
				char *kicked = word[4];
				char *reason = word_eol[5];
				if (*kicked)
				{
					if (*reason == ':')
						reason++;
					if (!strcmp (kicked, serv->nick))
	 					inbound_ukick (serv, word[3], nick, reason);
					else
						inbound_kick (serv, word[3], kicked, nick, reason);
				}
			}
			return;

		case WORDL('K','I','L','L'):
			EMIT_SIGNAL (XP_TE_KILL, sess, nick, word_eol[5], NULL, NULL, 0);
			return;

		case WORDL('M','O','D','E'):
			handle_mode (serv, word, word_eol, nick, FALSE);	/* modes.c */
			return;

		case WORDL('N','I','C','K'):
			inbound_newnick (serv, nick, (word_eol[3][0] == ':')
									? word_eol[3] + 1 : word_eol[3], FALSE);
			return;

		case WORDL('P','A','R','T'):
			{
				char *chan = word[3];
				char *reason = word_eol[4];

				if (*chan == ':')
					chan++;
				if (*reason == ':')
					reason++;
				if (!strcmp (nick, serv->nick))
					inbound_upart (serv, chan, ip, reason);
				else
					inbound_part (serv, chan, nick, ip, reason);
			}
			return;

		case WORDL('P','O','N','G'):
			inbound_ping_reply (serv->server_session,
								 (word[4][0] == ':') ? word[4] + 1 : word[4], word[3]);
			return;

		case WORDL('Q','U','I','T'):
			inbound_quit (serv, nick, ip,
							  (word_eol[3][0] == ':') ? word_eol[3] + 1 : word_eol[3]);
			return;
		}

		goto garbage;
	}

	else if (len >= 5)
	{
		guint32 t;

		t = WORDL((guint8)type[0], (guint8)type[1], (guint8)type[2], (guint8)type[3]); 	
		/* this should compile to a bunch of: CMP.L, JE ... nice & fast */
		switch (t)
		{
		case WORDL('I','N','V','I'):
			if (ignore_check (word[1], IG_INVI))
				return;
			
			if (word[4][0] == ':')
				EMIT_SIGNAL (XP_TE_INVITED, sess, word[4] + 1, nick,
								 serv->servername, NULL, 0);
			else
				EMIT_SIGNAL (XP_TE_INVITED, sess, word[4], nick,
								 serv->servername, NULL, 0);
				
			return;

		case WORDL('N','O','T','I'):
			{
				int id = FALSE;	/* identified */

				text = word_eol[4];
				if (*text == ':')
					text++;

				if (serv->have_idmsg)
				{
					if (*text == '+')
					{
						id = TRUE;
						text++;
					} else if (*text == '-')
						text++;
				}

				if (!ignore_check (word[1], IG_NOTI))
					inbound_notice (serv, word[3], nick, text, ip, id);
			}
			return;

		case WORDL('P','R','I','V'):
			{
				char *to = word[3];
				int len;
				int id = FALSE;	/* identified */
				if (*to)
				{
					text = word_eol[4];
					if (*text == ':')
						text++;
					if (serv->have_idmsg)
					{
						if (*text == '+')
						{
							id = TRUE;
							text++;
						} else if (*text == '-')
							text++;
					}
					len = strlen (text);
					if (text[0] == 1 && text[len - 1] == 1)	/* ctcp */
					{
						text[len - 1] = 0;
						text++;
						if (g_ascii_strncasecmp (text, "ACTION", 6) != 0)
							flood_check (nick, ip, serv, sess, 0);
						if (g_ascii_strncasecmp (text, "DCC ", 4) == 0)
							/* redo this with handle_quotes TRUE */
							process_data_init (word[1], word_eol[1], word, word_eol, TRUE, FALSE);
						ctcp_handle (sess, to, nick, ip, text, word, word_eol, id);
					} else
					{
						if (is_channel (serv, to))
						{
							if (ignore_check (word[1], IG_CHAN))
								return;
							inbound_chanmsg (serv, NULL, to, nick, text, FALSE, id);
						} else
						{
							if (ignore_check (word[1], IG_PRIV))
								return;
							inbound_privmsg (serv, nick, ip, text, id);
						}
					}
				}
			}
			return;

		case WORDL('T','O','P','I'):
			inbound_topicnew (serv, nick, word[3],
									(word_eol[4][0] == ':') ? word_eol[4] + 1 : word_eol[4]);
			return;

		case WORDL('W','A','L','L'):
			text = word_eol[3];
			if (*text == ':')
				text++;
			EMIT_SIGNAL (XP_TE_WALLOPS, sess, nick, text, NULL, NULL, 0);
			return;
		}
	}

	else if (len == 3)
	{
		guint32 t;
		char *pass;

		t = WORDL((guint8)type[0], (guint8)type[1], (guint8)type[2], (guint8)type[3]);
		switch (t)
		{
			case WORDL('C','A','P','\0'):
				if (strncasecmp (word[4], "ACK", 3) == 0)
				{
					if (strncasecmp (word[5][0]==':' ? word[5] + 1 : word[5], "identify-msg", 12) == 0)
					{
						serv->have_idmsg = TRUE;
					}
					if (strncasecmp (word[5][0]==':' ? word[5] + 1 : word[5], "sasl", 12) == 0)
					{
						serv->have_sasl = TRUE;
						EMIT_SIGNAL (XP_TE_SASLAUTH, serv->server_session, sess->server->sasluser, NULL, NULL, NULL, 0);
						tcp_send_len (serv, "AUTHENTICATE PLAIN\r\n", 20);

						pass = encode_sasl_pass (sess->server->sasluser, sess->server->saslpassword);
						tcp_sendf (sess->server, "AUTHENTICATE %s\r\n", pass);
						free (pass);
					}
				}
				else if (strncasecmp (word[4], "LS", 2) == 0)
				{
					EMIT_SIGNAL (XP_TE_SERVERCAP, serv->server_session, word[1], ++word_eol[5], NULL, NULL, 0);
					if (strstr (word_eol[5], "identify-msg") != 0)
					{
						tcp_send_len (serv, "CAP REQ :identify-msg\r\n", 23);
					}

					/* if the SASL password is set, request SASL auth */
					if (strstr (word_eol[5], "sasl") != 0 && strlen (sess->server->saslpassword) != 0)
					{
						tcp_send_len (serv, "CAP REQ :sasl\r\n", 23);
					}
					else
					{
						/* if we use SASL, CAP END is dealt via raw numerics */
						tcp_send_len (serv, "CAP END\r\n", 9);
					}
				}
				else if (strncasecmp (word[4], "NAK", 3) == 0)
				{
					tcp_send_len (serv, "CAP END\r\n", 9);
				}

				return;
		}
	}

garbage:
	/* unknown message */
	PrintTextf (sess, "GARBAGE: %s\n", word_eol[1]);
}

/* handle named messages that DON'T start with a ':' */

static void
process_named_servermsg (session *sess, char *buf, char *rawname, char *word_eol[])
{
	sess = sess->server->server_session;

	if (!strncmp (buf, "PING ", 5))
	{
		tcp_sendf (sess->server, "PONG %s\r\n", buf + 5);
		return;
	}
	if (!strncmp (buf, "ERROR", 5))
	{
		EMIT_SIGNAL (XP_TE_SERVERERROR, sess, buf + 7, NULL, NULL, NULL, 0);
		return;
	}
	if (!strncmp (buf, "NOTICE ", 7))
	{
		buf = word_eol[3];
		if (*buf == ':')
			buf++;
		EMIT_SIGNAL (XP_TE_SERVNOTICE, sess, buf, sess->server->servername, NULL, NULL, 0);
		return;
	}
	if (!strncmp (buf, "AUTHENTICATE +", 14))	/* omit SASL "empty" responses */
	{
		return;
	}

	EMIT_SIGNAL (XP_TE_SERVTEXT, sess, buf, sess->server->servername, rawname, NULL, 0);
}

/* irc_inline() - 1 single line received from serv */

static void
irc_inline (server *serv, char *buf, int len)
{
	session *sess, *tmp;
	char *type, *text;
	char *word[PDIWORDS+1];
	char *word_eol[PDIWORDS+1];
	char pdibuf_static[522]; /* 1 line can potentially be 512*6 in utf8 */
	char *pdibuf = pdibuf_static;

	url_check_line (buf, len);

	/* need more than 522? fall back to malloc */
	if (len >= sizeof (pdibuf_static))
		pdibuf = malloc (len + 1);

	sess = serv->front_session;

	/* Python relies on this */
	word[PDIWORDS] = NULL;
	word_eol[PDIWORDS] = NULL;

	if (buf[0] == ':')
	{
		/* split line into words and words_to_end_of_line */
		process_data_init (pdibuf, buf, word, word_eol, FALSE, FALSE);

		/* find a context for this message */
		if (is_channel (serv, word[3]))
		{
			tmp = find_channel (serv, word[3]);
			if (tmp)
				sess = tmp;
		}

		/* for server messages, the 2nd word is the "message type" */
		type = word[2];

		word[0] = type;
		word_eol[1] = buf;	/* keep the ":" for plugins */
		if (plugin_emit_server (sess, type, word, word_eol))
			goto xit;
		word[1]++;
		word_eol[1] = buf + 1;	/* but not for HexChat internally */

	} else
	{
		process_data_init (pdibuf, buf, word, word_eol, FALSE, FALSE);
		word[0] = type = word[1];
		if (plugin_emit_server (sess, type, word, word_eol))
			goto xit;
	}

	if (buf[0] != ':')
	{
		process_named_servermsg (sess, buf, word[0], word_eol);
		goto xit;
	}

	/* see if the second word is a numeric */
	if (isdigit ((unsigned char) word[2][0]))
	{
		text = word_eol[4];
		if (*text == ':')
			text++;

		process_numeric (sess, atoi (word[2]), word, word_eol, text);
	} else
	{
		process_named_msg (sess, type, word, word_eol);
	}

xit:
	if (pdibuf != pdibuf_static)
		free (pdibuf);
}

void
proto_fill_her_up (server *serv)
{
	serv->p_inline = irc_inline;
	serv->p_invite = irc_invite;
	serv->p_cycle = irc_cycle;
	serv->p_ctcp = irc_ctcp;
	serv->p_nctcp = irc_nctcp;
	serv->p_quit = irc_quit;
	serv->p_kick = irc_kick;
	serv->p_part = irc_part;
	serv->p_ns_identify = irc_ns_identify;
	serv->p_ns_ghost = irc_ns_ghost;
	serv->p_join = irc_join;
	serv->p_join_list = irc_join_list;
	serv->p_login = irc_login;
	serv->p_join_info = irc_join_info;
	serv->p_mode = irc_mode;
	serv->p_user_list = irc_user_list;
	serv->p_away_status = irc_away_status;
	/*serv->p_get_ip = irc_get_ip;*/
	serv->p_whois = irc_user_whois;
	serv->p_get_ip = irc_user_list;
	serv->p_get_ip_uh = irc_userhost;
	serv->p_set_back = irc_set_back;
	serv->p_set_away = irc_set_away;
	serv->p_message = irc_message;
	serv->p_action = irc_action;
	serv->p_notice = irc_notice;
	serv->p_topic = irc_topic;
	serv->p_list_channels = irc_list_channels;
	serv->p_change_nick = irc_change_nick;
	serv->p_names = irc_names;
	serv->p_ping = irc_ping;
	serv->p_raw = irc_raw;
	serv->p_cmp = rfc_casecmp;	/* can be changed by 005 in modes.c */
}