1 /*
2 * ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3 *
4 * Copyright (c) 1997-2021 ircd-hybrid development team
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
19 * USA
20 */
21
22 /*! \file m_motd.c
23 * \brief Includes required functions for processing the MOTD command.
24 * \version $Id: m_motd.c 9858 2021-01-01 04:43:42Z michael $
25 */
26
27 #include "stdinc.h"
28 #include "list.h"
29 #include "client.h"
30 #include "motd.h"
31 #include "ircd.h"
32 #include "send.h"
33 #include "numeric.h"
34 #include "server.h"
35 #include "parse.h"
36 #include "modules.h"
37 #include "conf.h"
38
39
40 /*! \brief Sends the "message of the day" and notifies irc-operators
41 * about the MOTD request
42 *
43 * \param source_p Pointer to client to report to
44 */
45 static void
do_motd(struct Client * source_p)46 do_motd(struct Client *source_p)
47 {
48 sendto_realops_flags(UMODE_SPY, L_ALL, SEND_NOTICE,
49 "MOTD requested by %s (%s@%s) [%s]",
50 source_p->name, source_p->username,
51 source_p->host, source_p->servptr->name);
52 motd_send(source_p);
53 }
54
55 /*! \brief MOTD command handler
56 *
57 * \param source_p Pointer to allocated Client struct from which the message
58 * originally comes from. This can be a local or remote client.
59 * \param parc Integer holding the number of supplied arguments.
60 * \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
61 * pointers.
62 * \note Valid arguments for this command are:
63 * - parv[0] = command
64 * - parv[1] = nickname/servername
65 */
66 static void
m_motd(struct Client * source_p,int parc,char * parv[])67 m_motd(struct Client *source_p, int parc, char *parv[])
68 {
69 static uintmax_t last_used = 0;
70
71 if ((last_used + ConfigGeneral.pace_wait) > event_base->time.sec_monotonic)
72 {
73 sendto_one_numeric(source_p, &me, RPL_LOAD2HI, "MOTD");
74 return;
75 }
76
77 last_used = event_base->time.sec_monotonic;
78
79 if (ConfigServerHide.disable_remote_commands == 0)
80 if (server_hunt(source_p, ":%s MOTD :%s", 1, parv)->ret != HUNTED_ISME)
81 return;
82
83 do_motd(source_p);
84 }
85
86 /*! \brief MOTD command handler
87 *
88 * \param source_p Pointer to allocated Client struct from which the message
89 * originally comes from. This can be a local or remote client.
90 * \param parc Integer holding the number of supplied arguments.
91 * \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
92 * pointers.
93 * \note Valid arguments for this command are:
94 * - parv[0] = command
95 * - parv[1] = nickname/servername
96 */
97 static void
ms_motd(struct Client * source_p,int parc,char * parv[])98 ms_motd(struct Client *source_p, int parc, char *parv[])
99 {
100 if (server_hunt(source_p, ":%s MOTD :%s", 1, parv)->ret != HUNTED_ISME)
101 return;
102
103 do_motd(source_p);
104 }
105
106 static struct Message motd_msgtab =
107 {
108 .cmd = "MOTD",
109 .handlers[UNREGISTERED_HANDLER] = { .handler = m_unregistered },
110 .handlers[CLIENT_HANDLER] = { .handler = m_motd },
111 .handlers[SERVER_HANDLER] = { .handler = ms_motd },
112 .handlers[ENCAP_HANDLER] = { .handler = m_ignore },
113 .handlers[OPER_HANDLER] = { .handler = ms_motd }
114 };
115
116 static void
module_init(void)117 module_init(void)
118 {
119 mod_add_cmd(&motd_msgtab);
120 }
121
122 static void
module_exit(void)123 module_exit(void)
124 {
125 mod_del_cmd(&motd_msgtab);
126 }
127
128 struct module module_entry =
129 {
130 .version = "$Revision: 9858 $",
131 .modinit = module_init,
132 .modexit = module_exit,
133 };
134