trunk/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: m_accept.c,v 1.49 2005/08/17 16:02:51 michael Exp $
 */

#include "stdinc.h"
#include "handlers.h"
#include "client.h"
#include "irc_string.h"
#include "sprintf_irc.h"
#include "hash.h"       /* for find_client() */
#include "ircd.h"
#include "list.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: 1.49 $";
#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:	30
Committed:	Sun Oct 2 20:03:27 2005 UTC (19 years, 10 months ago) by adx
Content type:	text/x-csrc
Original Path:	*ircd-hybrid/modules/m_accept.c*
File size:	6462 byte(s)
Log Message:	- imported sources - can be moved later according to the directory/branching scheme, but we need the svn up
#	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			* $Id: m_accept.c,v 1.49 2005/08/17 16:02:51 michael Exp $
23			*/
24
25			#include "stdinc.h"
26			#include "handlers.h"
27			#include "client.h"
28			#include "irc_string.h"
29			#include "sprintf_irc.h"
30			#include "hash.h" /* for find_client() */
31			#include "ircd.h"
32			#include "list.h"
33			#include "numeric.h"
34			#include "s_conf.h"
35			#include "s_serv.h"
36			#include "send.h"
37			#include "msg.h"
38			#include "parse.h"
39			#include "s_user.h"
40			#include "modules.h"
41
42			static void m_accept(struct Client , struct Client , int, char *[]);
43			static void build_nicklist(struct Client , char , char , char );
44			static void add_accept(struct Client , struct Client );
45			static void list_accepts(struct Client *);
46
47			struct Message accept_msgtab = {
48			"ACCEPT", 0, 0, 0, 0, MFLG_SLOW, 0,
49			{m_unregistered, m_accept, m_ignore, m_ignore, m_accept, m_ignore}
50			};
51
52			#ifndef STATIC_MODULES
53			void
54			_modinit(void)
55			{
56			mod_add_cmd(&accept_msgtab);
57			}
58
59			void
60			_moddeinit(void)
61			{
62			mod_del_cmd(&accept_msgtab);
63			}
64
65			const char *_version = "$Revision: 1.49 $";
66			#endif
67
68			/*
69			* m_accept - ACCEPT command handler
70			* parv[0] = sender prefix
71			* parv[1] = servername
72			*/
73			static void
74			m_accept(struct Client client_p, struct Client source_p,
75			int parc, char *parv[])
76			{
77			char *nick;
78			char *p = NULL;
79			char addbuf[IRCD_BUFSIZE] = { '\0' };
80			char delbuf[IRCD_BUFSIZE] = { '\0' };
81			struct Client *target_p = NULL;
82			int accept_num;
83
84			if ((parc < 2) \|\| (parv[1] == ''))
85			{
86			list_accepts(source_p);
87			return;
88			}
89
90			build_nicklist(source_p, addbuf, delbuf, parv[1]);
91
92			/* parse the delete list */
93			for (nick = strtoken(&p, delbuf, ","); nick != NULL;
94			nick = strtoken(&p, NULL, ","))
95			{
96			/* shouldnt happen, but lets be paranoid */
97			if (((target_p = find_client(nick)) == NULL) \|\| !IsClient(target_p))
98			{
99			sendto_one(source_p, form_str(ERR_NOSUCHNICK),
100			me.name, source_p->name, nick);
101			continue;
102			}
103
104			/* user isnt on clients accept list */
105			if (!accept_message(target_p, source_p))
106			{
107			sendto_one(source_p, form_str(ERR_ACCEPTNOT),
108			me.name, source_p->name, target_p->name);
109			continue;
110			}
111
112			del_from_accept(target_p, source_p);
113			}
114
115			/* get the number of accepts they have */
116			accept_num = dlink_list_length(&source_p->allow_list);
117
118			/* parse the add list */
119			for (nick = strtoken(&p, addbuf, ","); nick;
120			nick = strtoken(&p, NULL, ","), accept_num++)
121			{
122			/* shouldnt happen, but lets be paranoid */
123			if (((target_p = find_client(nick)) == NULL) \|\| !IsClient(target_p))
124			{
125			sendto_one(source_p, form_str(ERR_NOSUCHNICK),
126			me.name, source_p->name, nick);
127			continue;
128			}
129
130			/* user is already on clients accept list */
131			if (accept_message(target_p, source_p))
132			{
133			sendto_one(source_p, form_str(ERR_ACCEPTEXIST),
134			me.name, source_p->name, target_p->name);
135			continue;
136			}
137
138			if (accept_num >= ConfigFileEntry.max_accept)
139			{
140			sendto_one(source_p, form_str(ERR_ACCEPTFULL),
141			me.name, source_p->name);
142			return;
143			}
144
145			/* why is this here? */
146			/* del_from accept(target_p, source_p); */
147			add_accept(source_p, target_p);
148			}
149			}
150
151			/* build_nicklist()
152			*
153			* input - pointer to client
154			* - pointer to addbuffer
155			* - pointer to remove buffer
156			* - pointer to list of nicks
157			* output -
158			* side effects - addbuf/delbuf are modified to give valid nicks
159			*/
160			static void
161			build_nicklist(struct Client source_p, char addbuf,
162			char delbuf, char nicks)
163			{
164			char *name = NULL;
165			char *p = NULL;
166			char *buf_p = NULL;
167			struct Client *target_p = NULL;
168
169			/* build list of clients to add into addbuf, clients to remove in delbuf */
170			for (name = strtoken(&p, nicks, ","); name;
171			name = strtoken(&p, NULL, ","))
172			{
173			if (*name == '-')
174			buf_p = delbuf, ++name;
175			else
176			buf_p = addbuf;
177
178			if (((target_p = find_client(name)) == NULL) \|\| !IsClient(target_p))
179			{
180			sendto_one(source_p, form_str(ERR_NOSUCHNICK),
181			me.name, source_p->name, name);
182			continue;
183			}
184
185			if (*buf_p)
186			strlcat(buf_p, ",", IRCD_BUFSIZE);
187			strlcat(buf_p, name, IRCD_BUFSIZE);
188			}
189			}
190
191			/* add_accept()
192			*
193			* input - pointer to clients accept list to add to
194			* - pointer to client to add
195			* output - none
196			* side effects - target is added to clients list
197			*/
198			static void
199			add_accept(struct Client source_p, struct Client target_p)
200			{
201			dlinkAdd(target_p, make_dlink_node(), &source_p->allow_list);
202			dlinkAdd(source_p, make_dlink_node(), &target_p->on_allow_list);
203			list_accepts(source_p);
204			}
205
206			/* list_accepts()
207			*
208			* input - pointer to client
209			* output - none
210			* side effects - print accept list to client
211			*/
212			static void
213			list_accepts(struct Client *source_p)
214			{
215			int len = 0;
216			char nicks[IRCD_BUFSIZE] = { '\0' };
217			char *t = nicks;
218			const dlink_node *ptr = NULL;
219
220			len = strlen(me.name) + strlen(source_p->name) + 12;
221
222			DLINK_FOREACH(ptr, source_p->allow_list.head)
223			{
224			const struct Client *target_p = ptr->data;
225
226			if ((t - nicks) + strlen(target_p->name) + len > IRCD_BUFSIZE)
227			{
228			*(t - 1) = '\0';
229			sendto_one(source_p, form_str(RPL_ACCEPTLIST),
230			me.name, source_p->name, nicks);
231			t = nicks;
232			}
233
234			t += ircsprintf(t, "%s ", target_p->name);
235			}
236
237			if (nicks[0] != '\0')
238			{
239			*(t - 1) = '\0';
240			sendto_one(source_p, form_str(RPL_ACCEPTLIST),
241			me.name, source_p->name, nicks);
242			}
243
244			sendto_one(source_p, form_str(RPL_ENDOFACCEPT),
245			me.name, source_p->name);
246			}