8.2.x/modules/m_invite.c

/*
 *  ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
 *
 *  Copyright (c) 1997-2016 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
 *  USA
 */

/*! \file m_invite.c
 * \brief Includes required functions for processing the INVITE command.
 * \version $Id$
 */

#include "stdinc.h"
#include "list.h"
#include "channel.h"
#include "channel_mode.h"
#include "client.h"
#include "conf.h"
#include "hash.h"
#include "irc_string.h"
#include "ircd.h"
#include "numeric.h"
#include "send.h"
#include "parse.h"
#include "modules.h"
#include "packet.h"


/*! \brief INVITE command handler
 *
 * \param source_p Pointer to allocated Client struct from which the message
 *                 originally comes from.  This can be a local or remote client.
 * \param parc     Integer holding the number of supplied arguments.
 * \param parv     Argument vector where parv[0] .. parv[parc-1] are non-NULL
 *                 pointers.
 * \note Valid arguments for this command are:
 *      - parv[0] = command
 *      - parv[1] = user to invite
 *      - parv[2] = channel name
 */
static int
m_invite(struct Client *source_p, int parc, char *parv[])
{
  struct Client *target_p = NULL;
  struct Channel *chptr = NULL;
  struct Membership *member = NULL;

  if (parc < 2)
  {
    const dlink_node *node = NULL;

    DLINK_FOREACH(node, source_p->connection->invited.head)
      sendto_one_numeric(source_p, &me, RPL_INVITELIST,
                         ((struct Channel *)node->data)->name);

    sendto_one_numeric(source_p, &me, RPL_ENDOFINVITELIST);
    return 0;
  }

  if (parc < 3 || EmptyString(parv[2]))
  {
    sendto_one_numeric(source_p, &me, ERR_NEEDMOREPARAMS, "INVITE");
    return 0;
  }

  if (IsFloodDone(source_p))
    flood_endgrace(source_p);

  if ((target_p = find_person(source_p, parv[1])) == NULL)
  {
    sendto_one_numeric(source_p, &me, ERR_NOSUCHNICK, parv[1]);
    return 0;
  }

  if ((chptr = hash_find_channel(parv[2])) == NULL)
  {
    sendto_one_numeric(source_p, &me, ERR_NOSUCHCHANNEL, parv[2]);
    return 0;
  }

  if ((member = find_channel_link(source_p, chptr)) == NULL)
  {
    sendto_one_numeric(source_p, &me, ERR_NOTONCHANNEL, chptr->name);
    return 0;
  }

  if (!has_member_flags(member, CHFL_CHANOP | CHFL_HALFOP))
  {
    sendto_one_numeric(source_p, &me, ERR_CHANOPRIVSNEEDED, chptr->name);
    return 0;
  }

  if (IsMember(target_p, chptr))
  {
    sendto_one_numeric(source_p, &me, ERR_USERONCHANNEL, target_p->name, chptr->name);
    return 0;
  }

  if ((source_p->connection->invite.last_attempt + ConfigChannel.invite_client_time) < CurrentTime)
    source_p->connection->invite.count = 0;

  if (source_p->connection->invite.count > ConfigChannel.invite_client_count)
  {
    sendto_one_numeric(source_p, &me, ERR_TOOMANYINVITE, chptr->name, "user");
    return 0;
  }

  if ((chptr->last_invite + ConfigChannel.invite_delay_channel) > CurrentTime)
  {
    sendto_one_numeric(source_p, &me, ERR_TOOMANYINVITE, chptr->name, "channel");
    return 0;
  }

  source_p->connection->invite.last_attempt = CurrentTime;
  source_p->connection->invite.count++;

  sendto_one_numeric(source_p, &me, RPL_INVITING, target_p->name, chptr->name);

  if (target_p->away[0])
    sendto_one_numeric(source_p, &me, RPL_AWAY, target_p->name, target_p->away);

  chptr->last_invite = CurrentTime;

  if (MyConnect(target_p))
  {
    sendto_one(target_p, ":%s!%s@%s INVITE %s :%s",
               source_p->name, source_p->username,
               source_p->host,
               target_p->name, chptr->name);

    if (chptr->mode.mode & MODE_INVITEONLY)
      add_invite(chptr, target_p);  /* Add the invite if channel is +i */
  }

  if (chptr->mode.mode & MODE_INVITEONLY)
  {
    sendto_channel_local(NULL, chptr, CHFL_CHANOP | CHFL_HALFOP, 0, CAP_INVITE_NOTIFY,
                         ":%s NOTICE %%%s :%s is inviting %s to %s.",
                         me.name, chptr->name, source_p->name, target_p->name, chptr->name);
    sendto_channel_local(NULL, chptr, CHFL_CHANOP | CHFL_HALFOP, CAP_INVITE_NOTIFY, 0,
                         ":%s!%s@%s INVITE %s %s", source_p->name, source_p->username,
                         source_p->host, target_p->name, chptr->name);
  }

  sendto_server(source_p, 0, 0, ":%s INVITE %s %s %ju",
                source_p->id, target_p->id,
                chptr->name, chptr->creationtime);
  return 0;
}

/*! \brief INVITE command handler
 *
 * \param source_p Pointer to allocated Client struct from which the message
 *                 originally comes from.  This can be a local or remote client.
 * \param parc     Integer holding the number of supplied arguments.
 * \param parv     Argument vector where parv[0] .. parv[parc-1] are non-NULL
 *                 pointers.
 * \note Valid arguments for this command are:
 *      - parv[0] = command
 *      - parv[1] = user to invite
 *      - parv[2] = channel name
 *      - parv[3] = channel timestamp
 */
static int
ms_invite(struct Client *source_p, int parc, char *parv[])
{
  struct Client *target_p = NULL;
  struct Channel *chptr = NULL;

  if (parc < 3 || EmptyString(parv[2]))
    return 0;

  if ((target_p = find_person(source_p, parv[1])) == NULL)
    return 0;

  if ((chptr = hash_find_channel(parv[2])) == NULL)
    return 0;

  if (IsMember(target_p, chptr))
    return 0;

  if (parc > 3 && IsDigit(*parv[3]))
    if (strtoumax(parv[3], NULL, 10) > chptr->creationtime)
      return 0;

  chptr->last_invite = CurrentTime;

  if (MyConnect(target_p))
  {
    sendto_one(target_p, ":%s!%s@%s INVITE %s :%s",
               source_p->name, source_p->username,
               source_p->host,
               target_p->name, chptr->name);

    if (chptr->mode.mode & MODE_INVITEONLY)
      add_invite(chptr, target_p);  /* Add the invite if channel is +i */
  }

  if (chptr->mode.mode & MODE_INVITEONLY)
  {
    sendto_channel_local(NULL, chptr, CHFL_CHANOP | CHFL_HALFOP, 0, CAP_INVITE_NOTIFY,
                         ":%s NOTICE %%%s :%s is inviting %s to %s.",
                         me.name, chptr->name, source_p->name, target_p->name, chptr->name);
    sendto_channel_local(NULL, chptr, CHFL_CHANOP | CHFL_HALFOP, CAP_INVITE_NOTIFY, 0,
                         ":%s!%s@%s INVITE %s %s", source_p->name, source_p->username,
                         source_p->host, target_p->name, chptr->name);
  }

  sendto_server(source_p, 0, 0, ":%s INVITE %s %s %ju",
                source_p->id, target_p->id,
                chptr->name, chptr->creationtime);
  return 0;
}


static struct Message invite_msgtab =
{
  .cmd = "INVITE",
  .args_max = MAXPARA,
  .handlers[UNREGISTERED_HANDLER] = m_unregistered,
  .handlers[CLIENT_HANDLER] = m_invite,
  .handlers[SERVER_HANDLER] = ms_invite,
  .handlers[ENCAP_HANDLER] = m_ignore,
  .handlers[OPER_HANDLER] = m_invite
};

static void
module_init(void)
{
  mod_add_cmd(&invite_msgtab);
}

static void
module_exit(void)
{
  mod_del_cmd(&invite_msgtab);
}

struct module module_entry =
{
  .version = "$Revision$",
  .modinit = module_init,
  .modexit = module_exit,
};
1	/*
2	* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3	*
4	* Copyright (c) 1997-2016 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_invite.c
23	* \brief Includes required functions for processing the INVITE command.
24	* \version $Id$
25	*/
26
27	#include "stdinc.h"
28	#include "list.h"
29	#include "channel.h"
30	#include "channel_mode.h"
31	#include "client.h"
32	#include "conf.h"
33	#include "hash.h"
34	#include "irc_string.h"
35	#include "ircd.h"
36	#include "numeric.h"
37	#include "send.h"
38	#include "parse.h"
39	#include "modules.h"
40	#include "packet.h"
41
42
43	/*! \brief INVITE command handler
44	*
45	* \param source_p Pointer to allocated Client struct from which the message
46	* originally comes from. This can be a local or remote client.
47	* \param parc Integer holding the number of supplied arguments.
48	* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
49	* pointers.
50	* \note Valid arguments for this command are:
51	* - parv[0] = command
52	* - parv[1] = user to invite
53	* - parv[2] = channel name
54	*/
55	static int
56	m_invite(struct Client source_p, int parc, char parv[])
57	{
58	struct Client *target_p = NULL;
59	struct Channel *chptr = NULL;
60	struct Membership *member = NULL;
61
62	if (parc < 2)
63	{
64	const dlink_node *node = NULL;
65
66	DLINK_FOREACH(node, source_p->connection->invited.head)
67	sendto_one_numeric(source_p, &me, RPL_INVITELIST,
68	((struct Channel *)node->data)->name);
69
70	sendto_one_numeric(source_p, &me, RPL_ENDOFINVITELIST);
71	return 0;
72	}
73
74	if (parc < 3 \|\| EmptyString(parv[2]))
75	{
76	sendto_one_numeric(source_p, &me, ERR_NEEDMOREPARAMS, "INVITE");
77	return 0;
78	}
79
80	if (IsFloodDone(source_p))
81	flood_endgrace(source_p);
82
83	if ((target_p = find_person(source_p, parv[1])) == NULL)
84	{
85	sendto_one_numeric(source_p, &me, ERR_NOSUCHNICK, parv[1]);
86	return 0;
87	}
88
89	if ((chptr = hash_find_channel(parv[2])) == NULL)
90	{
91	sendto_one_numeric(source_p, &me, ERR_NOSUCHCHANNEL, parv[2]);
92	return 0;
93	}
94
95	if ((member = find_channel_link(source_p, chptr)) == NULL)
96	{
97	sendto_one_numeric(source_p, &me, ERR_NOTONCHANNEL, chptr->name);
98	return 0;
99	}
100
101	if (!has_member_flags(member, CHFL_CHANOP \| CHFL_HALFOP))
102	{
103	sendto_one_numeric(source_p, &me, ERR_CHANOPRIVSNEEDED, chptr->name);
104	return 0;
105	}
106
107	if (IsMember(target_p, chptr))
108	{
109	sendto_one_numeric(source_p, &me, ERR_USERONCHANNEL, target_p->name, chptr->name);
110	return 0;
111	}
112
113	if ((source_p->connection->invite.last_attempt + ConfigChannel.invite_client_time) < CurrentTime)
114	source_p->connection->invite.count = 0;
115
116	if (source_p->connection->invite.count > ConfigChannel.invite_client_count)
117	{
118	sendto_one_numeric(source_p, &me, ERR_TOOMANYINVITE, chptr->name, "user");
119	return 0;
120	}
121
122	if ((chptr->last_invite + ConfigChannel.invite_delay_channel) > CurrentTime)
123	{
124	sendto_one_numeric(source_p, &me, ERR_TOOMANYINVITE, chptr->name, "channel");
125	return 0;
126	}
127
128	source_p->connection->invite.last_attempt = CurrentTime;
129	source_p->connection->invite.count++;
130
131	sendto_one_numeric(source_p, &me, RPL_INVITING, target_p->name, chptr->name);
132
133	if (target_p->away[0])
134	sendto_one_numeric(source_p, &me, RPL_AWAY, target_p->name, target_p->away);
135
136	chptr->last_invite = CurrentTime;
137
138	if (MyConnect(target_p))
139	{
140	sendto_one(target_p, ":%s!%s@%s INVITE %s :%s",
141	source_p->name, source_p->username,
142	source_p->host,
143	target_p->name, chptr->name);
144
145	if (chptr->mode.mode & MODE_INVITEONLY)
146	add_invite(chptr, target_p); /* Add the invite if channel is +i */
147	}
148
149	if (chptr->mode.mode & MODE_INVITEONLY)
150	{
151	sendto_channel_local(NULL, chptr, CHFL_CHANOP \| CHFL_HALFOP, 0, CAP_INVITE_NOTIFY,
152	":%s NOTICE %%%s :%s is inviting %s to %s.",
153	me.name, chptr->name, source_p->name, target_p->name, chptr->name);
154	sendto_channel_local(NULL, chptr, CHFL_CHANOP \| CHFL_HALFOP, CAP_INVITE_NOTIFY, 0,
155	":%s!%s@%s INVITE %s %s", source_p->name, source_p->username,
156	source_p->host, target_p->name, chptr->name);
157	}
158
159	sendto_server(source_p, 0, 0, ":%s INVITE %s %s %ju",
160	source_p->id, target_p->id,
161	chptr->name, chptr->creationtime);
162	return 0;
163	}
164
165	/*! \brief INVITE command handler
166	*
167	* \param source_p Pointer to allocated Client struct from which the message
168	* originally comes from. This can be a local or remote client.
169	* \param parc Integer holding the number of supplied arguments.
170	* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
171	* pointers.
172	* \note Valid arguments for this command are:
173	* - parv[0] = command
174	* - parv[1] = user to invite
175	* - parv[2] = channel name
176	* - parv[3] = channel timestamp
177	*/
178	static int
179	ms_invite(struct Client source_p, int parc, char parv[])
180	{
181	struct Client *target_p = NULL;
182	struct Channel *chptr = NULL;
183
184	if (parc < 3 \|\| EmptyString(parv[2]))
185	return 0;
186
187	if ((target_p = find_person(source_p, parv[1])) == NULL)
188	return 0;
189
190	if ((chptr = hash_find_channel(parv[2])) == NULL)
191	return 0;
192
193	if (IsMember(target_p, chptr))
194	return 0;
195
196	if (parc > 3 && IsDigit(*parv[3]))
197	if (strtoumax(parv[3], NULL, 10) > chptr->creationtime)
198	return 0;
199
200	chptr->last_invite = CurrentTime;
201
202	if (MyConnect(target_p))
203	{
204	sendto_one(target_p, ":%s!%s@%s INVITE %s :%s",
205	source_p->name, source_p->username,
206	source_p->host,
207	target_p->name, chptr->name);
208
209	if (chptr->mode.mode & MODE_INVITEONLY)
210	add_invite(chptr, target_p); /* Add the invite if channel is +i */
211	}
212
213	if (chptr->mode.mode & MODE_INVITEONLY)
214	{
215	sendto_channel_local(NULL, chptr, CHFL_CHANOP \| CHFL_HALFOP, 0, CAP_INVITE_NOTIFY,
216	":%s NOTICE %%%s :%s is inviting %s to %s.",
217	me.name, chptr->name, source_p->name, target_p->name, chptr->name);
218	sendto_channel_local(NULL, chptr, CHFL_CHANOP \| CHFL_HALFOP, CAP_INVITE_NOTIFY, 0,
219	":%s!%s@%s INVITE %s %s", source_p->name, source_p->username,
220	source_p->host, target_p->name, chptr->name);
221	}
222
223	sendto_server(source_p, 0, 0, ":%s INVITE %s %s %ju",
224	source_p->id, target_p->id,
225	chptr->name, chptr->creationtime);
226	return 0;
227	}
228
229
230	static struct Message invite_msgtab =
231	{
232	.cmd = "INVITE",
233	.args_max = MAXPARA,
234	.handlers[UNREGISTERED_HANDLER] = m_unregistered,
235	.handlers[CLIENT_HANDLER] = m_invite,
236	.handlers[SERVER_HANDLER] = ms_invite,
237	.handlers[ENCAP_HANDLER] = m_ignore,
238	.handlers[OPER_HANDLER] = m_invite
239	};
240
241	static void
242	module_init(void)
243	{
244	mod_add_cmd(&invite_msgtab);
245	}
246
247	static void
248	module_exit(void)
249	{
250	mod_del_cmd(&invite_msgtab);
251	}
252
253	struct module module_entry =
254	{
255	.version = "$Revision$",
256	.modinit = module_init,
257	.modexit = module_exit,
258	};
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