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source: irc_send.c @ 4a9fd5f

Last change on this file since 4a9fd5f was eb50495, checked in by Wilmer van der Gaast <wilmer@…>, at 2010-05-04T08:45:10Z
Show offline/away status better in /WHO and /WHOIS.
Property mode set to `100644`
File size: 10.6 KB

Line
1	/********************************************************************\
2	* BitlBee -- An IRC to other IM-networks gateway *
3	* *
4	* Copyright 2002-2010 Wilmer van der Gaast and others *
5	\********************************************************************/
6
7	/* The IRC-based UI - Sending responses to commands/etc. */
8
9	/*
10	This program is free software; you can redistribute it and/or modify
11	it under the terms of the GNU General Public License as published by
12	the Free Software Foundation; either version 2 of the License, or
13	(at your option) any later version.
14
15	This program is distributed in the hope that it will be useful,
16	but WITHOUT ANY WARRANTY; without even the implied warranty of
17	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18	GNU General Public License for more details.
19
20	You should have received a copy of the GNU General Public License with
21	the Debian GNU/Linux distribution in /usr/share/common-licenses/GPL;
22	if not, write to the Free Software Foundation, Inc., 59 Temple Place,
23	Suite 330, Boston, MA 02111-1307 USA
24	*/
25
26	#include "bitlbee.h"
27
28	void irc_send_num( irc_t irc, int code, char format, ... )
29	{
30	char text[IRC_MAX_LINE];
31	va_list params;
32
33	va_start( params, format );
34	g_vsnprintf( text, IRC_MAX_LINE, format, params );
35	va_end( params );
36
37	irc_write( irc, ":%s %03d %s %s", irc->root->host, code, irc->user->nick ? : "*", text );
38	}
39
40	void irc_send_login( irc_t *irc )
41	{
42	irc_send_num( irc, 1, ":Welcome to the BitlBee gateway, %s", irc->user->nick );
43	irc_send_num( irc, 2, ":Host %s is running BitlBee " BITLBEE_VERSION " " ARCH "/" CPU ".", irc->root->host );
44	irc_send_num( irc, 3, ":%s", IRCD_INFO );
45	irc_send_num( irc, 4, "%s %s %s %s", irc->root->host, BITLBEE_VERSION, UMODES UMODES_PRIV, CMODES );
46	irc_send_num( irc, 5, "PREFIX=(ov)@+ CHANTYPES=%s CHANMODES=,,,%s NICKLEN=%d NETWORK=BitlBee "
47	"CASEMAPPING=rfc1459 MAXTARGETS=1 WATCH=128 :are supported by this server",
48	CTYPES, CMODES, MAX_NICK_LENGTH - 1 );
49	irc_send_motd( irc );
50	}
51
52	void irc_send_motd( irc_t *irc )
53	{
54	int fd;
55
56	fd = open( global.conf->motdfile, O_RDONLY );
57	if( fd == -1 )
58	{
59	irc_send_num( irc, 422, ":We don't need MOTDs." );
60	}
61	else
62	{
63	char linebuf[80]; /* Max. line length for MOTD's is 79 chars. It's what most IRC networks seem to do. */
64	char *add, max;
65	int len;
66
67	linebuf[79] = len = 0;
68	max = sizeof( linebuf ) - 1;
69
70	irc_send_num( irc, 375, ":- %s Message Of The Day - ", irc->root->host );
71	while( read( fd, linebuf + len, 1 ) == 1 )
72	{
73	if( linebuf[len] == '\n' \|\| len == max )
74	{
75	linebuf[len] = 0;
76	irc_send_num( irc, 372, ":- %s", linebuf );
77	len = 0;
78	}
79	else if( linebuf[len] == '%' )
80	{
81	read( fd, linebuf + len, 1 );
82	if( linebuf[len] == 'h' )
83	add = irc->root->host;
84	else if( linebuf[len] == 'v' )
85	add = BITLBEE_VERSION;
86	else if( linebuf[len] == 'n' )
87	add = irc->user->nick;
88	else
89	add = "%";
90
91	strncpy( linebuf + len, add, max - len );
92	while( linebuf[++len] );
93	}
94	else if( len < max )
95	{
96	len ++;
97	}
98	}
99	irc_send_num( irc, 376, ":End of MOTD" );
100	close( fd );
101	}
102	}
103
104	void irc_usermsg( irc_t irc, char format, ... )
105	{
106	irc_channel_t *ic;
107	irc_user_t *iu;
108	char text[1024];
109	va_list params;
110
111	va_start( params, format );
112	g_vsnprintf( text, sizeof( text ), format, params );
113	va_end( params );
114
115	if( irc->last_root_cmd &&
116	irc_channel_name_ok( irc->last_root_cmd ) &&
117	( ic = irc_channel_by_name( irc, irc->last_root_cmd ) ) &&
118	ic->flags & IRC_CHANNEL_JOINED )
119	irc_send_msg( irc->root, "PRIVMSG", irc->last_root_cmd, text, NULL );
120	else if( irc->last_root_cmd &&
121	( iu = irc_user_by_name( irc, irc->last_root_cmd ) ) &&
122	iu->f == &irc_user_root_funcs )
123	irc_send_msg( iu, "PRIVMSG", irc->user->nick, text, NULL );
124	else
125	{
126	g_free( irc->last_root_cmd );
127	irc->last_root_cmd = NULL;
128
129	irc_send_msg( irc->root, "PRIVMSG", irc->user->nick, text, NULL );
130	}
131
132	/return( irc_msgfrom( irc, u->nick, text ) );/
133	}
134
135	void irc_send_join( irc_channel_t ic, irc_user_t iu )
136	{
137	irc_t *irc = ic->irc;
138
139	irc_write( irc, ":%s!%s@%s JOIN :%s", iu->nick, iu->user, iu->host, ic->name );
140
141	if( iu == irc->user )
142	{
143	irc_write( irc, ":%s MODE %s +%s", irc->root->host, ic->name, ic->mode );
144	irc_send_names( ic );
145	if( ic->topic && *ic->topic )
146	irc_send_topic( ic, FALSE );
147	}
148	}
149
150	void irc_send_part( irc_channel_t ic, irc_user_t iu, const char *reason )
151	{
152	irc_write( ic->irc, ":%s!%s@%s PART %s :%s", iu->nick, iu->user, iu->host, ic->name, reason );
153	}
154
155	void irc_send_names( irc_channel_t *ic )
156	{
157	GSList *l;
158	char namelist[385] = "";
159
160	/* RFCs say there is no error reply allowed on NAMES, so when the
161	channel is invalid, just give an empty reply. */
162	for( l = ic->users; l; l = l->next )
163	{
164	irc_channel_user_t *icu = l->data;
165	irc_user_t *iu = icu->iu;
166
167	if( strlen( namelist ) + strlen( iu->nick ) > sizeof( namelist ) - 4 )
168	{
169	irc_send_num( ic->irc, 353, "= %s :%s", ic->name, namelist );
170	*namelist = 0;
171	}
172
173	if( icu->flags & IRC_CHANNEL_USER_OP )
174	strcat( namelist, "@" );
175	else if( icu->flags & IRC_CHANNEL_USER_HALFOP )
176	strcat( namelist, "%" );
177	else if( icu->flags & IRC_CHANNEL_USER_VOICE )
178	strcat( namelist, "+" );
179
180	strcat( namelist, iu->nick );
181	strcat( namelist, " " );
182	}
183
184	if( *namelist )
185	irc_send_num( ic->irc, 353, "= %s :%s", ic->name, namelist );
186
187	irc_send_num( ic->irc, 366, "%s :End of /NAMES list", ic->name );
188	}
189
190	void irc_send_topic( irc_channel_t *ic, gboolean topic_change )
191	{
192	if( topic_change && ic->topic_who )
193	{
194	irc_write( ic->irc, ":%s TOPIC %s :%s", ic->topic_who,
195	ic->name, ic->topic && *ic->topic ? ic->topic : "" );
196	}
197	else if( ic->topic )
198	{
199	irc_send_num( ic->irc, 332, "%s :%s", ic->name, ic->topic );
200	if( ic->topic_who )
201	irc_send_num( ic->irc, 333, "%s %s %d",
202	ic->name, ic->topic_who, (int) ic->topic_time );
203	}
204	else
205	irc_send_num( ic->irc, 331, "%s :No topic for this channel", ic->name );
206	}
207
208	void irc_send_whois( irc_user_t *iu )
209	{
210	irc_t *irc = iu->irc;
211
212	irc_send_num( irc, 311, "%s %s %s * :%s",
213	iu->nick, iu->user, iu->host, iu->fullname );
214
215	if( iu->bu )
216	{
217	bee_user_t *bu = iu->bu;
218
219	irc_send_num( irc, 312, "%s %s.%s :%s network", iu->nick, bu->ic->acc->user,
220	bu->ic->acc->server && *bu->ic->acc->server ? bu->ic->acc->server : "",
221	bu->ic->acc->prpl->name );
222
223	if( ( bu->status && *bu->status ) \|\|
224	( bu->status_msg && *bu->status_msg ) )
225	{
226	int num = bu->flags & BEE_USER_AWAY ? 301 : 320;
227
228	if( bu->status && bu->status_msg )
229	irc_send_num( irc, num, "%s :%s (%s)", iu->nick, bu->status, bu->status_msg );
230	else
231	irc_send_num( irc, num, "%s :%s", iu->nick, bu->status ? : bu->status_msg );
232	}
233	else if( !( bu->flags & BEE_USER_ONLINE ) )
234	{
235	irc_send_num( irc, 301, "%s :%s", iu->nick, "User is offline" );
236	}
237	}
238	else
239	{
240	irc_send_num( irc, 312, "%s %s :%s", iu->nick, irc->root->host, IRCD_INFO );
241	}
242
243	irc_send_num( irc, 318, "%s :End of /WHOIS list", iu->nick );
244	}
245
246	void irc_send_who( irc_t irc, GSList l, const char *channel )
247	{
248	gboolean is_channel = strcmp( channel, "**" ) != 0;
249
250	while( l )
251	{
252	irc_user_t *iu = l->data;
253	if( is_channel )
254	iu = ((irc_channel_user_t*)iu)->iu;
255	/* TODO(wilmer): Restore away/channel information here */
256	irc_send_num( irc, 352, "%s %s %s %s %s %c :0 %s",
257	channel ? : "*", iu->user, iu->host, irc->root->host,
258	iu->nick, iu->flags & IRC_USER_AWAY ? 'G' : 'H',
259	iu->fullname );
260	l = l->next;
261	}
262
263	irc_send_num( irc, 315, "%s :End of /WHO list", channel );
264	}
265
266	void irc_send_msg( irc_user_t iu, const char type, const char dst, const char msg, const char *prefix )
267	{
268	char last = 0;
269	const char s = msg, line = msg;
270	char raw_msg[strlen(msg)+1024];
271
272	while( !last )
273	{
274	if( s == '\r' && (s+1) == '\n' )
275	s++;
276	if( *s == '\n' )
277	{
278	last = s[1] == 0;
279	}
280	else
281	{
282	last = s[0] == 0;
283	}
284	if( s == 0 \|\| s == '\n' )
285	{
286	if( g_strncasecmp( line, "/me ", 4 ) == 0 && ( !prefix \|\| !*prefix ) &&
287	g_strcasecmp( type, "PRIVMSG" ) == 0 )
288	{
289	strcpy( raw_msg, "\001ACTION " );
290	strncat( raw_msg, line + 4, s - line - 4 );
291	strcat( raw_msg, "\001" );
292	irc_send_msg_raw( iu, type, dst, raw_msg );
293	}
294	else
295	{
296	*raw_msg = '\0';
297	if( prefix && *prefix )
298	strcpy( raw_msg, prefix );
299	strncat( raw_msg, line, s - line );
300	irc_send_msg_raw( iu, type, dst, raw_msg );
301	}
302	line = s + 1;
303	}
304	s ++;
305	}
306	}
307
308	void irc_send_msg_raw( irc_user_t iu, const char type, const char dst, const char msg )
309	{
310	irc_write( iu->irc, ":%s!%s@%s %s %s :%s",
311	iu->nick, iu->user, iu->host, type, dst, msg );
312	}
313
314	void irc_send_msg_f( irc_user_t iu, const char type, const char dst, const char format, ... )
315	{
316	char text[IRC_MAX_LINE];
317	va_list params;
318
319	va_start( params, format );
320	g_vsnprintf( text, IRC_MAX_LINE, format, params );
321	va_end( params );
322
323	irc_write( iu->irc, ":%s!%s@%s %s %s :%s",
324	iu->nick, iu->user, iu->host, type, dst, text );
325	}
326
327	void irc_send_nick( irc_user_t iu, const char new )
328	{
329	irc_write( iu->irc, ":%s!%s@%s NICK %s",
330	iu->nick, iu->user, iu->host, new );
331	}
332
333	/* Send an update of a user's mode inside a channel, compared to what it was. */
334	void irc_send_channel_user_mode_diff( irc_channel_t ic, irc_user_t iu,
335	irc_channel_user_flags_t old, irc_channel_user_flags_t new )
336	{
337	char changes[3*(5+strlen(iu->nick))];
338	char from[strlen(ic->irc->root->nick)+strlen(ic->irc->root->user)+strlen(ic->irc->root->host)+3];
339	int n;
340
341	*changes = '\0'; n = 0;
342	if( ( old & IRC_CHANNEL_USER_OP ) != ( new & IRC_CHANNEL_USER_OP ) )
343	{
344	n ++;
345	if( new & IRC_CHANNEL_USER_OP )
346	strcat( changes, "+o" );
347	else
348	strcat( changes, "-o" );
349	}
350	if( ( old & IRC_CHANNEL_USER_HALFOP ) != ( new & IRC_CHANNEL_USER_HALFOP ) )
351	{
352	n ++;
353	if( new & IRC_CHANNEL_USER_HALFOP )
354	strcat( changes, "+h" );
355	else
356	strcat( changes, "-h" );
357	}
358	if( ( old & IRC_CHANNEL_USER_VOICE ) != ( new & IRC_CHANNEL_USER_VOICE ) )
359	{
360	n ++;
361	if( new & IRC_CHANNEL_USER_VOICE )
362	strcat( changes, "+v" );
363	else
364	strcat( changes, "-v" );
365	}
366	while( n )
367	{
368	strcat( changes, " " );
369	strcat( changes, iu->nick );
370	n --;
371	}
372
373	if( set_getbool( &ic->irc->b->set, "simulate_netsplit" ) )
374	g_snprintf( from, sizeof( from ), "%s", ic->irc->root->host );
375	else
376	g_snprintf( from, sizeof( from ), "%s!%s@%s", ic->irc->root->nick,
377	ic->irc->root->user, ic->irc->root->host );
378
379	irc_write( ic->irc, ":%s MODE %s %s", from, ic->name, changes );
380	}

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