/[svn]/ircd-hybrid-7.2/modules/m_tburst.c
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Contents of /ircd-hybrid-7.2/modules/m_tburst.c

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Revision 327 - (show annotations)
Sun Dec 25 09:55:48 2005 UTC (14 years, 7 months ago) by michael
File MIME type: text/x-chdr
File size: 5829 byte(s)
- propset svn:keywords "Id" modules/m_tburst.c
- Added CAP_TBURST definition to get m_tburst.c compile

1 /* modules/m_tburst.c
2 * Copyright (C) 2002, 2003, 2004, 2005 Hybrid Development Team
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 * 1.Redistributions of source code must retain the above copyright notice,
9 * this list of conditions and the following disclaimer.
10 * 2.Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3.The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
25 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 *
28 * $Id: m_tb.c 122 2005-10-13 10:57:26Z adx $
29 */
30
31 #include "stdinc.h"
32 #include "handlers.h"
33 #include "client.h"
34 #include "common.h"
35 #include "ircd.h"
36 #include "send.h"
37 #include "msg.h"
38 #include "modules.h"
39 #include "hash.h"
40 #include "s_serv.h"
41 #include "s_conf.h"
42
43 static void ms_tb(struct Client *, struct Client *, int, char *[]);
44 static void ms_tburst(struct Client *, struct Client *, int, char *[]);
45 static void set_topic(struct Client *, struct Channel *, time_t, char *, char *);
46
47 struct Message tburst_msgtab = {
48 "TBURST", 0, 0, 6, 0, MFLG_SLOW, 0,
49 {m_ignore, m_ignore, ms_tburst, m_ignore, m_ignore, m_ignore}
50 };
51
52 struct Message tb_msgtab = {
53 "TB", 0, 0, 0, 0, MFLG_SLOW, 0,
54 {m_ignore, m_ignore, ms_tb, m_ignore, m_ignore, m_ignore}
55 };
56
57 #ifndef STATIC_MODULES
58
59 void
60 _modinit(void)
61 {
62 mod_add_cmd(&tb_msgtab);
63 add_capability("TB", CAP_TB, 1);
64
65 mod_add_cmd(&tburst_msgtab);
66 add_capability("TBURST", CAP_TBURST, 1);
67 }
68
69 void
70 _moddeinit(void)
71 {
72 mod_del_cmd(&tb_msgtab);
73 delete_capability("TB");
74
75 mod_del_cmd(&tburst_msgtab);
76 delete_capability("TBURST");
77 }
78
79 const char *_version = "$Revision: 122 $";
80
81 #endif /* !STATIC_MODULES */
82
83 /* ms_tburst()
84 *
85 * parv[0] = sender prefix
86 * parv[1] = channel timestamp
87 * parv[2] = channel
88 * parv[3] = topic timestamp
89 * parv[4] = topic setter
90 * parv[5] = topic
91 */
92 static void
93 ms_tburst(struct Client *client_p, struct Client *source_p,
94 int parc, char *parv[])
95 {
96 struct Channel *chptr = NULL;
97 time_t oldchannelts = atol(parv[1]);
98 time_t oldtopicts = atol(parv[3]);
99
100 if ((chptr = hash_find_channel(parv[2])) == NULL)
101 return;
102
103 /* Only allow topic change if we are the newer TS and server
104 * sending TBURST has older TS and topicTS on older TS is
105 * newer than current topicTS. -metalrock
106 * XXX - Incorrect logic here as discussed on IRC
107 */
108 if ((oldchannelts <= chptr->channelts) &&
109 ((chptr->topic == NULL) || (oldtopicts > chptr->topic_time)))
110 set_topic(source_p, chptr, oldtopicts, parv[4], parv[5]);
111 }
112
113 /* ms_tb()
114 *
115 * parv[0] = sender prefix
116 * parv[1] = channel name
117 * parv[2] = topic timestamp
118 * parv[3] = topic setter OR topic itself if parc == 4
119 * parv[4] = topic itself if parc == 5
120 */
121 #define tb_channel parv[1]
122 #define tb_topicts_str parv[2]
123
124 static void
125 ms_tb(struct Client *client_p, struct Client *source_p, int parc, char *parv[])
126 {
127 struct Channel *chptr;
128 time_t tb_topicts = atol(tb_topicts_str);
129 char *tb_whoset = NULL;
130 char *tb_topic = NULL;
131
132 if ((chptr = hash_find_channel(tb_channel)) == NULL)
133 return;
134
135 if (parc == 5)
136 {
137 tb_whoset = parv[3];
138 tb_topic = parv[4];
139 }
140 else
141 {
142 tb_whoset = source_p->name;
143 tb_topic = parv[3];
144 }
145
146 set_topic(source_p, chptr, tb_topicts, tb_whoset, tb_topic);
147 }
148
149 /*
150 * set_topic
151 *
152 * inputs - source_p pointer
153 * - channel pointer
154 * - topicts to set
155 * - who to set as who doing the topic
156 * - topic
157 * output - none
158 * Side effects - simply propagates topic as needed
159 * little helper function, could be removed
160 */
161 static void
162 set_topic(struct Client *source_p, struct Channel *chptr,
163 time_t topicts, char *topicwho, char *topic)
164 {
165 set_channel_topic(chptr, topic, topicwho, topicts);
166
167 /* Only send TOPIC to channel if it's different */
168 if (chptr->topic == NULL || strcmp(chptr->topic, topic))
169 sendto_channel_local(ALL_MEMBERS, NO, chptr, ":%s TOPIC %s :%s",
170 ConfigServerHide.hide_servers ? me.name : source_p->name,
171 chptr->chname, chptr->topic == NULL ? "" : chptr->topic);
172
173 sendto_server(source_p, NULL, chptr, CAP_TBURST, NOCAPS, NOFLAGS,
174 ":%s TBURST %lu %s %lu %s :%s",
175 me.name, (unsigned long)chptr->channelts, chptr->chname,
176 (unsigned long)chptr->topic_time,
177 chptr->topic_info == NULL ? "" : chptr->topic_info,
178 chptr->topic == NULL ? "" : chptr->topic);
179 sendto_server(source_p, NULL, chptr, CAP_TB, CAP_TBURST, NOFLAGS,
180 ":%s TB %s %lu %s :%s",
181 me.name, chptr->chname,
182 (unsigned long)chptr->topic_time,
183 chptr->topic_info == NULL ? "" : chptr->topic_info,
184 chptr->topic == NULL ? "" : chptr->topic);
185 }

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