1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
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
|
/*
* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
*
* Copyright (c) 2002-2014 ircd-hybrid development team
*
* 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
*/
/*! \file m_tburst.c
* \brief Includes required functions for processing the TBURST command.
* \version $Id$
*/
#include "stdinc.h"
#include "client.h"
#include "ircd.h"
#include "send.h"
#include "modules.h"
#include "hash.h"
#include "s_serv.h"
#include "conf.h"
#include "parse.h"
/* ms_tburst()
*
* parv[0] = sender prefix
* parv[1] = channel timestamp
* parv[2] = channel
* parv[3] = topic timestamp
* parv[4] = topic setter
* parv[5] = topic
*/
static int
ms_tburst(struct Client *client_p, struct Client *source_p,
int parc, char *parv[])
{
struct Channel *chptr = NULL;
int accept_remote = 0;
time_t remote_channel_ts = atol(parv[1]);
time_t remote_topic_ts = atol(parv[3]);
const char *topic = parv[5];
const char *setby = parv[4];
/*
* Do NOT test parv[5] for an empty string and return if true!
* parv[5] CAN be an empty string, i.e. if the other side wants
* to unset our topic. Don't forget: an empty topic is also a
* valid topic.
*/
if ((chptr = hash_find_channel(parv[2])) == NULL)
return 0;
/*
* The logic for accepting and rejecting channel topics was
* always a bit hairy, so now we got exactly 2 cases where
* we would accept a bursted topic
*
* Case 1:
* The TS of the remote channel is older than ours
* Case 2:
* The TS of the remote channel is equal to ours AND
* the TS of the remote topic is newer than ours
*/
if (HasFlag(source_p, FLAGS_SERVICE))
accept_remote = 1;
else if (remote_channel_ts < chptr->channelts)
accept_remote = 1;
else if (remote_channel_ts == chptr->channelts)
if (remote_topic_ts > chptr->topic_time)
accept_remote = 1;
if (accept_remote)
{
int topic_differs = strncmp(chptr->topic, topic, sizeof(chptr->topic) - 1);
int hidden_server = (ConfigServerHide.hide_servers || IsHidden(source_p));
set_channel_topic(chptr, topic, setby, remote_topic_ts, !!MyClient(source_p));
sendto_server(source_p, CAP_TBURST|CAP_TS6, NOCAPS,
":%s TBURST %s %s %s %s :%s",
ID(source_p), parv[1], parv[2], parv[3], setby, topic);
sendto_server(source_p, CAP_TBURST, CAP_TS6,
":%s TBURST %s %s %s %s :%s",
source_p->name, parv[1], parv[2], parv[3], setby, topic);
if (topic_differs)
sendto_channel_local(ALL_MEMBERS, 0, chptr, ":%s TOPIC %s :%s",
hidden_server ? me.name : source_p->name,
chptr->chname, chptr->topic);
}
return 0;
}
static struct Message tburst_msgtab =
{
"TBURST", 0, 0, 6, MAXPARA, MFLG_SLOW, 0,
{ m_ignore, m_ignore, ms_tburst, m_ignore, m_ignore, m_ignore }
};
static void
module_init(void)
{
mod_add_cmd(&tburst_msgtab);
add_capability("TBURST", CAP_TBURST, 1);
}
static void
module_exit(void)
{
mod_del_cmd(&tburst_msgtab);
delete_capability("TBURST");
}
struct module module_entry =
{
.node = { NULL, NULL, NULL },
.name = NULL,
.version = "$Revision$",
.handle = NULL,
.modinit = module_init,
.modexit = module_exit,
.flags = 0
};
|
