ircd-hybrid/modules/m_accept.c

/*
 *  ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
 *  m_accept.c: Allows a user to talk to a +g user.
 *
 *  Copyright (C) 2002 by the past and present ircd coders, and others.
 *
 *  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
 *
 *  $Id$
 */

#include "stdinc.h"
#include "handlers.h"
#include "client.h"
#include "hash.h"       /* for find_client() */
#include "ircd.h"
#include "numeric.h"
#include "s_conf.h"
#include "s_serv.h"
#include "send.h"
#include "msg.h"
#include "parse.h"
#include "s_user.h"
#include "modules.h"

static void m_accept(struct Client *, struct Client *, int, char *[]);
static void build_nicklist(struct Client *, char *, char *, char *);
static void add_accept(struct Client *, struct Client *);
static void list_accepts(struct Client *);

struct Message accept_msgtab = {
  "ACCEPT", 0, 0, 0, 0, MFLG_SLOW, 0, 
  {m_unregistered, m_accept, m_ignore, m_ignore, m_accept, m_ignore}
};

#ifndef STATIC_MODULES
void
_modinit(void)
{
  mod_add_cmd(&accept_msgtab);
}

void
_moddeinit(void)
{
  mod_del_cmd(&accept_msgtab);
}

const char *_version = "$Revision$";
#endif

/*
 * m_accept - ACCEPT command handler
 *      parv[0] = sender prefix
 *      parv[1] = servername
 */
static void
m_accept(struct Client *client_p, struct Client *source_p,
         int parc, char *parv[])
{
  char *nick;
  char *p = NULL;
  char addbuf[IRCD_BUFSIZE] = { '\0' };
  char delbuf[IRCD_BUFSIZE] = { '\0' };
  struct Client *target_p = NULL;
  int accept_num;
  
  if ((parc < 2) || (*parv[1] == '*'))
  {
    list_accepts(source_p);
    return;
  }

  build_nicklist(source_p, addbuf, delbuf, parv[1]);

  /* parse the delete list */
  for (nick = strtoken(&p, delbuf, ","); nick != NULL;
       nick = strtoken(&p, NULL, ","))
  {
    /* shouldnt happen, but lets be paranoid */
    if (((target_p = find_client(nick)) == NULL) || !IsClient(target_p))
    {
      sendto_one(source_p, form_str(ERR_NOSUCHNICK),
                 me.name, source_p->name, nick);
      continue;
    }

    /* user isnt on clients accept list */
    if (!accept_message(target_p, source_p))
    {
      sendto_one(source_p, form_str(ERR_ACCEPTNOT),
                 me.name, source_p->name, target_p->name);
      continue;
    }

    del_from_accept(target_p, source_p);
  }

  /* get the number of accepts they have */ 
  accept_num = dlink_list_length(&source_p->allow_list);

  /* parse the add list */
  for (nick = strtoken(&p, addbuf, ","); nick;
       nick = strtoken(&p, NULL, ","), accept_num++)
  {
    /* shouldnt happen, but lets be paranoid */
    if (((target_p = find_client(nick)) == NULL) || !IsClient(target_p)) 
    {
      sendto_one(source_p, form_str(ERR_NOSUCHNICK),
                 me.name, source_p->name, nick);
      continue;
    }

    /* user is already on clients accept list */
    if (accept_message(target_p, source_p))
    {
      sendto_one(source_p, form_str(ERR_ACCEPTEXIST),
                 me.name, source_p->name, target_p->name);
      continue;
    }

    if (accept_num >= ConfigFileEntry.max_accept)
    {
      sendto_one(source_p, form_str(ERR_ACCEPTFULL),
                 me.name, source_p->name);
      return;
    }
      
    /* why is this here? */
    /* del_from accept(target_p, source_p); */
    add_accept(source_p, target_p);
  }
}

/* build_nicklist()
 *
 * input        - pointer to client
 *              - pointer to addbuffer
 *              - pointer to remove buffer
 *              - pointer to list of nicks
 * output       - 
 * side effects - addbuf/delbuf are modified to give valid nicks
 */
static void
build_nicklist(struct Client *source_p, char *addbuf,
               char *delbuf, char *nicks)
{
  char *name = NULL;
  char *p = NULL;
  char *buf_p = NULL;
  struct Client *target_p = NULL;

  /* build list of clients to add into addbuf, clients to remove in delbuf */
  for (name = strtoken(&p, nicks, ","); name; 
       name = strtoken(&p, NULL, ","))
  {
    if (*name == '-')
      buf_p = delbuf, ++name;
    else
      buf_p = addbuf;

    if (((target_p = find_client(name)) == NULL) || !IsClient(target_p))
    {
      sendto_one(source_p, form_str(ERR_NOSUCHNICK),
                 me.name, source_p->name, name);
      continue;
    }

    if (*buf_p)
      strlcat(buf_p, ",", IRCD_BUFSIZE);
    strlcat(buf_p, name, IRCD_BUFSIZE);
  }
}

/* add_accept()
 *
 * input        - pointer to clients accept list to add to
 *              - pointer to client to add
 * output       - none
 * side effects - target is added to clients list
 */
static void
add_accept(struct Client *source_p, struct Client *target_p)
{
  dlinkAdd(target_p, make_dlink_node(), &source_p->allow_list);
  dlinkAdd(source_p, make_dlink_node(), &target_p->on_allow_list);
  list_accepts(source_p);
}

/* list_accepts()
 *
 * input        - pointer to client
 * output       - none
 * side effects - print accept list to client
 */
static void
list_accepts(struct Client *source_p)
{
  int len = 0;
  char nicks[IRCD_BUFSIZE] = { '\0' };
  char *t = nicks;
  const dlink_node *ptr = NULL;

  len = strlen(me.name) + strlen(source_p->name) + 12;

  DLINK_FOREACH(ptr, source_p->allow_list.head)
  {
    const struct Client *target_p = ptr->data;

    if ((t - nicks) + strlen(target_p->name) + len > IRCD_BUFSIZE)
    {
      *(t - 1) = '\0';
      sendto_one(source_p, form_str(RPL_ACCEPTLIST),
                 me.name, source_p->name, nicks);
      t = nicks;
    }

    t += ircsprintf(t, "%s ", target_p->name);
  }

  if (nicks[0] != '\0')
  {
    *(t - 1) = '\0';
    sendto_one(source_p, form_str(RPL_ACCEPTLIST),
               me.name, source_p->name, nicks);
  }

  sendto_one(source_p, form_str(RPL_ENDOFACCEPT),
             me.name, source_p->name);
}
Revision:	69
Committed:	Tue Oct 4 16:09:51 2005 UTC (20 years, 10 months ago) by adx
Content type:	text/x-csrc
File size:	6336 byte(s)
Log Message:	- splitted ircd/libio, all headers connected with libio sources have been moved for internal use only. To use libio interface, include "libio.h" (which is already done in "stdinc.h")
#	User	Rev	Content
1	adx	30	/*
2			* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3			* m_accept.c: Allows a user to talk to a +g user.
4			*
5			* Copyright (C) 2002 by the past and present ircd coders, and others.
6			*
7			* This program is free software; you can redistribute it and/or modify
8			* it under the terms of the GNU General Public License as published by
9			* the Free Software Foundation; either version 2 of the License, or
10			* (at your option) any later version.
11			*
12			* This program is distributed in the hope that it will be useful,
13			* but WITHOUT ANY WARRANTY; without even the implied warranty of
14			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15			* GNU General Public License for more details.
16			*
17			* You should have received a copy of the GNU General Public License
18			* along with this program; if not, write to the Free Software
19			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
20			* USA
21			*
22	knight	31	* $Id$
23	adx	30	*/
24
25			#include "stdinc.h"
26			#include "handlers.h"
27			#include "client.h"
28			#include "hash.h" /* for find_client() */
29			#include "ircd.h"
30			#include "numeric.h"
31			#include "s_conf.h"
32			#include "s_serv.h"
33			#include "send.h"
34			#include "msg.h"
35			#include "parse.h"
36			#include "s_user.h"
37			#include "modules.h"
38
39			static void m_accept(struct Client , struct Client , int, char *[]);
40			static void build_nicklist(struct Client , char , char , char );
41			static void add_accept(struct Client , struct Client );
42			static void list_accepts(struct Client *);
43
44			struct Message accept_msgtab = {
45			"ACCEPT", 0, 0, 0, 0, MFLG_SLOW, 0,
46			{m_unregistered, m_accept, m_ignore, m_ignore, m_accept, m_ignore}
47			};
48
49			#ifndef STATIC_MODULES
50			void
51			_modinit(void)
52			{
53			mod_add_cmd(&accept_msgtab);
54			}
55
56			void
57			_moddeinit(void)
58			{
59			mod_del_cmd(&accept_msgtab);
60			}
61
62	knight	31	const char *_version = "$Revision$";
63	adx	30	#endif
64
65			/*
66			* m_accept - ACCEPT command handler
67			* parv[0] = sender prefix
68			* parv[1] = servername
69			*/
70			static void
71			m_accept(struct Client client_p, struct Client source_p,
72			int parc, char *parv[])
73			{
74			char *nick;
75			char *p = NULL;
76			char addbuf[IRCD_BUFSIZE] = { '\0' };
77			char delbuf[IRCD_BUFSIZE] = { '\0' };
78			struct Client *target_p = NULL;
79			int accept_num;
80
81			if ((parc < 2) \|\| (parv[1] == ''))
82			{
83			list_accepts(source_p);
84			return;
85			}
86
87			build_nicklist(source_p, addbuf, delbuf, parv[1]);
88
89			/* parse the delete list */
90			for (nick = strtoken(&p, delbuf, ","); nick != NULL;
91			nick = strtoken(&p, NULL, ","))
92			{
93			/* shouldnt happen, but lets be paranoid */
94			if (((target_p = find_client(nick)) == NULL) \|\| !IsClient(target_p))
95			{
96			sendto_one(source_p, form_str(ERR_NOSUCHNICK),
97			me.name, source_p->name, nick);
98			continue;
99			}
100
101			/* user isnt on clients accept list */
102			if (!accept_message(target_p, source_p))
103			{
104			sendto_one(source_p, form_str(ERR_ACCEPTNOT),
105			me.name, source_p->name, target_p->name);
106			continue;
107			}
108
109			del_from_accept(target_p, source_p);
110			}
111
112			/* get the number of accepts they have */
113			accept_num = dlink_list_length(&source_p->allow_list);
114
115			/* parse the add list */
116			for (nick = strtoken(&p, addbuf, ","); nick;
117			nick = strtoken(&p, NULL, ","), accept_num++)
118			{
119			/* shouldnt happen, but lets be paranoid */
120			if (((target_p = find_client(nick)) == NULL) \|\| !IsClient(target_p))
121			{
122			sendto_one(source_p, form_str(ERR_NOSUCHNICK),
123			me.name, source_p->name, nick);
124			continue;
125			}
126
127			/* user is already on clients accept list */
128			if (accept_message(target_p, source_p))
129			{
130			sendto_one(source_p, form_str(ERR_ACCEPTEXIST),
131			me.name, source_p->name, target_p->name);
132			continue;
133			}
134
135			if (accept_num >= ConfigFileEntry.max_accept)
136			{
137			sendto_one(source_p, form_str(ERR_ACCEPTFULL),
138			me.name, source_p->name);
139			return;
140			}
141
142			/* why is this here? */
143			/* del_from accept(target_p, source_p); */
144			add_accept(source_p, target_p);
145			}
146			}
147
148			/* build_nicklist()
149			*
150			* input - pointer to client
151			* - pointer to addbuffer
152			* - pointer to remove buffer
153			* - pointer to list of nicks
154			* output -
155			* side effects - addbuf/delbuf are modified to give valid nicks
156			*/
157			static void
158			build_nicklist(struct Client source_p, char addbuf,
159			char delbuf, char nicks)
160			{
161			char *name = NULL;
162			char *p = NULL;
163			char *buf_p = NULL;
164			struct Client *target_p = NULL;
165
166			/* build list of clients to add into addbuf, clients to remove in delbuf */
167			for (name = strtoken(&p, nicks, ","); name;
168			name = strtoken(&p, NULL, ","))
169			{
170			if (*name == '-')
171			buf_p = delbuf, ++name;
172			else
173			buf_p = addbuf;
174
175			if (((target_p = find_client(name)) == NULL) \|\| !IsClient(target_p))
176			{
177			sendto_one(source_p, form_str(ERR_NOSUCHNICK),
178			me.name, source_p->name, name);
179			continue;
180			}
181
182			if (*buf_p)
183			strlcat(buf_p, ",", IRCD_BUFSIZE);
184			strlcat(buf_p, name, IRCD_BUFSIZE);
185			}
186			}
187
188			/* add_accept()
189			*
190			* input - pointer to clients accept list to add to
191			* - pointer to client to add
192			* output - none
193			* side effects - target is added to clients list
194			*/
195			static void
196			add_accept(struct Client source_p, struct Client target_p)
197			{
198			dlinkAdd(target_p, make_dlink_node(), &source_p->allow_list);
199			dlinkAdd(source_p, make_dlink_node(), &target_p->on_allow_list);
200			list_accepts(source_p);
201			}
202
203			/* list_accepts()
204			*
205			* input - pointer to client
206			* output - none
207			* side effects - print accept list to client
208			*/
209			static void
210			list_accepts(struct Client *source_p)
211			{
212			int len = 0;
213			char nicks[IRCD_BUFSIZE] = { '\0' };
214			char *t = nicks;
215			const dlink_node *ptr = NULL;
216
217			len = strlen(me.name) + strlen(source_p->name) + 12;
218
219			DLINK_FOREACH(ptr, source_p->allow_list.head)
220			{
221			const struct Client *target_p = ptr->data;
222
223			if ((t - nicks) + strlen(target_p->name) + len > IRCD_BUFSIZE)
224			{
225			*(t - 1) = '\0';
226			sendto_one(source_p, form_str(RPL_ACCEPTLIST),
227			me.name, source_p->name, nicks);
228			t = nicks;
229			}
230
231			t += ircsprintf(t, "%s ", target_p->name);
232			}
233
234			if (nicks[0] != '\0')
235			{
236			*(t - 1) = '\0';
237			sendto_one(source_p, form_str(RPL_ACCEPTLIST),
238			me.name, source_p->name, nicks);
239			}
240
241			sendto_one(source_p, form_str(RPL_ENDOFACCEPT),
242			me.name, source_p->name);
243			}