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212380e3 | 1 | /* |
2 | * ircd-ratbox: A slightly useful ircd. | |
fde16193 | 3 | * m_capab.c: Negotiates capabilities with a remote server. |
212380e3 | 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 | * | |
212380e3 | 24 | */ |
25 | ||
26 | #include "stdinc.h" | |
27 | #include "client.h" | |
13ae2f4b | 28 | #include "match.h" |
212380e3 | 29 | #include "s_serv.h" |
30 | #include "s_conf.h" | |
31 | #include "msg.h" | |
32 | #include "parse.h" | |
33 | #include "modules.h" | |
34 | ||
35 | static int mr_capab(struct Client *, struct Client *, int, const char **); | |
36 | static int me_gcap(struct Client *, struct Client *, int, const char **); | |
37 | ||
38 | struct Message capab_msgtab = { | |
39 | "CAPAB", 0, 0, 0, MFLG_SLOW | MFLG_UNREG, | |
40 | {{mr_capab, 0}, mg_ignore, mg_ignore, mg_ignore, mg_ignore, mg_ignore} | |
41 | }; | |
42 | struct Message gcap_msgtab = { | |
43 | "GCAP", 0, 0, 0, MFLG_SLOW, | |
44 | {mg_ignore, mg_ignore, mg_ignore, mg_ignore, {me_gcap, 2}, mg_ignore} | |
45 | }; | |
46 | ||
47 | mapi_clist_av1 capab_clist[] = { &capab_msgtab, &gcap_msgtab, NULL }; | |
48 | DECLARE_MODULE_AV1(capab, NULL, NULL, capab_clist, NULL, NULL, "$Revision: 1295 $"); | |
49 | ||
50 | /* | |
51 | * mr_capab - CAPAB message handler | |
212380e3 | 52 | * parv[1] = space-separated list of capabilities |
53 | * | |
54 | */ | |
55 | static int | |
56 | mr_capab(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
57 | { | |
58 | struct Capability *cap; | |
59 | int i; | |
60 | char *p; | |
61 | char *s; | |
62 | ||
63 | /* ummm, this shouldn't happen. Could argue this should be logged etc. */ | |
64 | if(client_p->localClient == NULL) | |
65 | return 0; | |
66 | ||
67 | if(client_p->user) | |
68 | return 0; | |
69 | ||
70 | /* CAP_TS6 is set in PASS, so is valid.. */ | |
71 | if((client_p->localClient->caps & ~CAP_TS6) != 0) | |
72 | { | |
73 | exit_client(client_p, client_p, client_p, "CAPAB received twice"); | |
74 | return 0; | |
75 | } | |
76 | else | |
77 | client_p->localClient->caps |= CAP_CAP; | |
78 | ||
90a3c35b | 79 | rb_free(client_p->localClient->fullcaps); |
bba1d5ba | 80 | client_p->localClient->fullcaps = rb_strdup(parv[1]); |
212380e3 | 81 | |
82 | for (i = 1; i < parc; i++) | |
83 | { | |
84 | char *t = LOCAL_COPY(parv[i]); | |
dcbd1d07 | 85 | for (s = rb_strtok_r(t, " ", &p); s; s = rb_strtok_r(NULL, " ", &p)) |
212380e3 | 86 | { |
87 | for (cap = captab; cap->name; cap++) | |
88 | { | |
89 | if(!irccmp(cap->name, s)) | |
90 | { | |
91 | client_p->localClient->caps |= cap->cap; | |
92 | break; | |
93 | } | |
94 | } | |
95 | } | |
96 | } | |
97 | ||
98 | return 0; | |
99 | } | |
100 | ||
101 | static int | |
102 | me_gcap(struct Client *client_p, struct Client *source_p, | |
103 | int parc, const char *parv[]) | |
104 | { | |
105 | struct Capability *cap; | |
106 | char *t = LOCAL_COPY(parv[1]); | |
107 | char *s; | |
108 | char *p; | |
109 | ||
110 | if(!IsServer(source_p)) | |
111 | return 0; | |
112 | ||
113 | /* already had GCAPAB?! */ | |
114 | if(!EmptyString(source_p->serv->fullcaps)) | |
b37edd51 WP |
115 | { |
116 | source_p->serv->caps = 0; | |
90a3c35b | 117 | rb_free(source_p->serv->fullcaps); |
b37edd51 | 118 | } |
212380e3 | 119 | |
62d28946 | 120 | source_p->serv->fullcaps = rb_strdup(parv[1]); |
212380e3 | 121 | |
dcbd1d07 | 122 | for (s = rb_strtok_r(t, " ", &p); s; s = rb_strtok_r(NULL, " ", &p)) |
212380e3 | 123 | { |
124 | for (cap = captab; cap->name; cap++) | |
125 | { | |
126 | if(!irccmp(cap->name, s)) | |
127 | { | |
128 | source_p->serv->caps |= cap->cap; | |
129 | break; | |
130 | } | |
131 | } | |
132 | } | |
133 | ||
134 | return 0; | |
135 | } |