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1 | /* | |
2 | * ircd-ratbox: A slightly useful ircd. | |
3 | * m_names.c: Shows the users who are online. | |
4 | * | |
5 | * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center | |
6 | * Copyright (C) 1996-2002 Hybrid Development Team | |
7 | * Copyright (C) 2002-2005 ircd-ratbox development team | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 | |
22 | * USA | |
23 | * | |
24 | * $Id: m_names.c 254 2005-09-21 23:35:12Z nenolod $ | |
25 | */ | |
26 | ||
27 | #include "stdinc.h" | |
28 | #include "sprintf_irc.h" | |
29 | #include "channel.h" | |
30 | #include "client.h" | |
31 | #include "common.h" | |
32 | #include "hash.h" | |
33 | #include "irc_string.h" | |
34 | #include "ircd.h" | |
35 | #include "numeric.h" | |
36 | #include "send.h" | |
37 | #include "s_serv.h" | |
38 | #include "s_conf.h" | |
39 | #include "msg.h" | |
40 | #include "parse.h" | |
41 | #include "modules.h" | |
42 | ||
43 | static int m_names(struct Client *, struct Client *, int, const char **); | |
44 | ||
45 | struct Message names_msgtab = { | |
46 | "NAMES", 0, 0, 0, MFLG_SLOW, | |
47 | {mg_unreg, {m_names, 0}, mg_ignore, mg_ignore, mg_ignore, {m_names, 0}} | |
48 | }; | |
49 | ||
50 | mapi_clist_av1 names_clist[] = { &names_msgtab, NULL }; | |
51 | DECLARE_MODULE_AV1(names, NULL, NULL, names_clist, NULL, NULL, "$Revision: 254 $"); | |
52 | ||
53 | static void names_global(struct Client *source_p); | |
54 | ||
55 | /************************************************************************ | |
56 | * m_names() - Added by Jto 27 Apr 1989 | |
57 | ************************************************************************/ | |
58 | ||
59 | /* | |
60 | * m_names | |
61 | * parv[0] = sender prefix | |
62 | * parv[1] = channel | |
63 | */ | |
64 | static int | |
65 | m_names(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
66 | { | |
67 | static time_t last_used = 0; | |
68 | struct Channel *chptr = NULL; | |
69 | char *s; | |
70 | ||
71 | if(parc > 1 && !EmptyString(parv[1])) | |
72 | { | |
73 | char *p = LOCAL_COPY(parv[1]); | |
74 | if((s = strchr(p, ','))) | |
75 | *s = '\0'; | |
76 | ||
77 | if(!check_channel_name(p)) | |
78 | { | |
79 | sendto_one_numeric(source_p, ERR_BADCHANNAME, | |
80 | form_str(ERR_BADCHANNAME), | |
81 | (unsigned char *) p); | |
82 | return 0; | |
83 | } | |
84 | ||
85 | if((chptr = find_channel(p)) != NULL) | |
86 | channel_member_names(chptr, source_p, 1); | |
87 | else | |
88 | sendto_one(source_p, form_str(RPL_ENDOFNAMES), | |
89 | me.name, source_p->name, p); | |
90 | } | |
91 | else | |
92 | { | |
93 | if(!IsOper(source_p)) | |
94 | { | |
95 | if((last_used + ConfigFileEntry.pace_wait) > rb_current_time()) | |
96 | { | |
97 | sendto_one(source_p, form_str(RPL_LOAD2HI), | |
98 | me.name, source_p->name, "NAMES"); | |
99 | sendto_one(source_p, form_str(RPL_ENDOFNAMES), | |
100 | me.name, source_p->name, "*"); | |
101 | return 0; | |
102 | } | |
103 | else | |
104 | last_used = rb_current_time(); | |
105 | } | |
106 | ||
107 | names_global(source_p); | |
108 | sendto_one(source_p, form_str(RPL_ENDOFNAMES), | |
109 | me.name, source_p->name, "*"); | |
110 | } | |
111 | ||
112 | return 0; | |
113 | } | |
114 | ||
115 | /* | |
116 | * names_global | |
117 | * | |
118 | * inputs - pointer to client struct requesting names | |
119 | * output - none | |
120 | * side effects - lists all non public non secret channels | |
121 | */ | |
122 | static void | |
123 | names_global(struct Client *source_p) | |
124 | { | |
125 | int mlen; | |
126 | int tlen; | |
127 | int cur_len; | |
128 | int dont_show = NO; | |
129 | rb_dlink_node *lp, *ptr; | |
130 | struct Client *target_p; | |
131 | struct Channel *chptr = NULL; | |
132 | struct membership *msptr; | |
133 | char buf[BUFSIZE]; | |
134 | char *t; | |
135 | ||
136 | /* first do all visible channels */ | |
137 | RB_DLINK_FOREACH(ptr, global_channel_list.head) | |
138 | { | |
139 | chptr = ptr->data; | |
140 | channel_member_names(chptr, source_p, 0); | |
141 | } | |
142 | cur_len = mlen = rb_sprintf(buf, form_str(RPL_NAMREPLY), | |
143 | me.name, source_p->name, "*", "*"); | |
144 | t = buf + mlen; | |
145 | ||
146 | /* Second, do all clients in one big sweep */ | |
147 | RB_DLINK_FOREACH(ptr, global_client_list.head) | |
148 | { | |
149 | target_p = ptr->data; | |
150 | dont_show = NO; | |
151 | ||
152 | if(!IsPerson(target_p) || IsInvisible(target_p)) | |
153 | continue; | |
154 | ||
155 | /* we want to show -i clients that are either: | |
156 | * a) not on any channels | |
157 | * b) only on +p channels | |
158 | * | |
159 | * both were missed out above. if the target is on a | |
160 | * common channel with source, its already been shown. | |
161 | */ | |
162 | RB_DLINK_FOREACH(lp, target_p->user->channel.head) | |
163 | { | |
164 | msptr = lp->data; | |
165 | chptr = msptr->chptr; | |
166 | ||
167 | if(PubChannel(chptr) || IsMember(source_p, chptr) || | |
168 | SecretChannel(chptr)) | |
169 | { | |
170 | dont_show = YES; | |
171 | break; | |
172 | } | |
173 | } | |
174 | ||
175 | if(dont_show) | |
176 | continue; | |
177 | ||
178 | if((cur_len + NICKLEN + 2) > (BUFSIZE - 3)) | |
179 | { | |
180 | sendto_one(source_p, "%s", buf); | |
181 | cur_len = mlen; | |
182 | t = buf + mlen; | |
183 | } | |
184 | ||
185 | tlen = rb_sprintf(t, "%s ", target_p->name); | |
186 | cur_len += tlen; | |
187 | t += tlen; | |
188 | } | |
189 | ||
190 | if(cur_len > mlen) | |
191 | sendto_one(source_p, "%s", buf); | |
192 | } |