[irc/rqf/shadowircd.git] / modules / m_accept.c

/*
 *  ircd-ratbox: A slightly useful ircd.
 *  m_accept.c: Allows a user to talk to a +g user.
 *
 *  Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
 *  Copyright (C) 1996-2002 Hybrid Development Team
 *  Copyright (C) 2002-2005 ircd-ratbox 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307
 *  USA
 *
 *  $Id: m_accept.c 254 2005-09-21 23:35:12Z nenolod $
 */

#include "stdinc.h"
#include "client.h"
#include "hash.h"
#include "ircd.h"
#include "numeric.h"
#include "s_conf.h"
#include "s_serv.h"
#include "send.h"
#include "msg.h"
#include "parse.h"
#include "sprintf_irc.h"
#include "modules.h"

static int m_accept(struct Client *, struct Client *, int, const char **);
static void build_nicklist(struct Client *, char *, char *, const char *);

static void add_accept(struct Client *, struct Client *);
static void list_accepts(struct Client *);

struct Message accept_msgtab = {
	"ACCEPT", 0, 0, 0, MFLG_SLOW | MFLG_UNREG,
	{mg_unreg, {m_accept, 2}, mg_ignore, mg_ignore, mg_ignore, {m_accept, 2}}
};

mapi_clist_av1 accept_clist[] = {
	&accept_msgtab, NULL
};
DECLARE_MODULE_AV1(accept, NULL, NULL, accept_clist, NULL, NULL, "$Revision: 254 $");

/*
 * m_accept - ACCEPT command handler
 *      parv[0] = sender prefix
 *      parv[1] = servername
 */
static int
m_accept(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
	char *nick;
	char *p = NULL;
	static char addbuf[BUFSIZE];
	static char delbuf[BUFSIZE];
	struct Client *target_p;
	int accept_num;

	if(*parv[1] == '*')
	{
		list_accepts(source_p);
		return 0;
	}

	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_named_person(nick)) == NULL)
		{
			sendto_one_numeric(source_p, ERR_NOSUCHNICK,
					   form_str(ERR_NOSUCHNICK), 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;
		}

		rb_dlinkFindDestroy(target_p, &source_p->localClient->allow_list);
		rb_dlinkFindDestroy(source_p, &target_p->on_allow_list);
	}

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

	/* parse the add list */
	for (nick = strtoken(&p, addbuf, ","); nick; nick = strtoken(&p, NULL, ","))
	{
		/* shouldnt happen, but lets be paranoid */
		if((target_p = find_named_person(nick)) == NULL)
		{
			sendto_one_numeric(source_p, ERR_NOSUCHNICK,
					   form_str(ERR_NOSUCHNICK), 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 0;
		}

		/* why is this here? */
		/* del_from accept(target_p, source_p); */
		add_accept(source_p, target_p);
		accept_num++;
	}

	return 0;
}

/*
 * 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, const char *nicks)
{
	char *name;
	char *p;
	int lenadd;
	int lendel;
	int del;
	struct Client *target_p;
	char *n = LOCAL_COPY(nicks);

	*addbuf = *delbuf = '\0';
	del = lenadd = lendel = 0;

	/* build list of clients to add into addbuf, clients to remove in delbuf */
	for (name = strtoken(&p, n, ","); name; name = strtoken(&p, NULL, ","), del = 0)
	{
		if(*name == '-')
		{
			del = 1;
			name++;
		}

		if((target_p = find_named_person(name)) == NULL)
		{
			sendto_one_numeric(source_p, ERR_NOSUCHNICK, 
					   form_str(ERR_NOSUCHNICK), name);
			continue;
		}

		/* we're deleting a client */
		if(del)
		{
			if(*delbuf)
				(void) strcat(delbuf, ",");

			(void) strncat(delbuf, name, BUFSIZE - lendel - 1);
			lendel += strlen(name) + 1;
		}
		/* adding a client */
		else
		{
			if(*addbuf)
				(void) strcat(addbuf, ",");

			(void) strncat(addbuf, name, BUFSIZE - lenadd - 1);
			lenadd += strlen(name) + 1;
		}
	}
}

/*
 * 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)
{
	dlinkAddAlloc(target_p, &source_p->localClient->allow_list);
	dlinkAddAlloc(source_p, &target_p->on_allow_list);
}


/*
 * list_accepts()
 *
 * input 	- pointer to client
 * output	- none
 * side effects	- print accept list to client
 */
static void
list_accepts(struct Client *source_p)
{
	rb_dlink_node *ptr;
	struct Client *target_p;
	char nicks[BUFSIZE];
	int len = 0;
	int len2 = 0;
	int count = 0;

	*nicks = '\0';
	len2 = strlen(source_p->name) + 10;

	RB_DLINK_FOREACH(ptr, source_p->localClient->allow_list.head)
	{
		target_p = ptr->data;

		if(target_p)
		{

			if((len + strlen(target_p->name) + len2 > BUFSIZE) || count > 14)
			{
				sendto_one(source_p, form_str(RPL_ACCEPTLIST),
					   me.name, source_p->name, nicks);

				len = count = 0;
				*nicks = '\0';
			}

			len += rb_snprintf(nicks + len, sizeof(nicks) - len, "%s ", target_p->name);
			count++;
		}
	}

	if(*nicks)
		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);

}
Commit	Line	Data
212380e3	1	/*
	2	* ircd-ratbox: A slightly useful ircd.
	3	* m_accept.c: Allows a user to talk to a +g user.
	4	*
	5	* Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
	6	* Copyright (C) 1996-2002 Hybrid Development Team
	7	* Copyright (C) 2002-2005 ircd-ratbox development team
	8	*
	9	* This program is free software; you can redistribute it and/or modify
	10	* it under the terms of the GNU General Public License as published by
	11	* the Free Software Foundation; either version 2 of the License, or
	12	* (at your option) any later version.
	13	*
	14	* This program is distributed in the hope that it will be useful,
	15	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	17	* GNU General Public License for more details.
	18	*
	19	* You should have received a copy of the GNU General Public License
	20	* along with this program; if not, write to the Free Software
	21	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
	22	* USA
	23	*
	24	* $Id: m_accept.c 254 2005-09-21 23:35:12Z nenolod $
	25	*/
	26
	27	#include "stdinc.h"
	28	#include "client.h"
	29	#include "hash.h"
	30	#include "ircd.h"
	31	#include "numeric.h"
	32	#include "s_conf.h"
	33	#include "s_serv.h"
	34	#include "send.h"
	35	#include "msg.h"
	36	#include "parse.h"
	37	#include "sprintf_irc.h"
	38	#include "modules.h"
	39
	40	static int m_accept(struct Client , struct Client , int, const char **);
	41	static void build_nicklist(struct Client , char , char , const char );
	42
	43	static void add_accept(struct Client , struct Client );
	44	static void list_accepts(struct Client *);
	45
	46	struct Message accept_msgtab = {
	47	"ACCEPT", 0, 0, 0, MFLG_SLOW \| MFLG_UNREG,
	48	{mg_unreg, {m_accept, 2}, mg_ignore, mg_ignore, mg_ignore, {m_accept, 2}}
	49	};
	50
	51	mapi_clist_av1 accept_clist[] = {
	52	&accept_msgtab, NULL
	53	};
	54	DECLARE_MODULE_AV1(accept, NULL, NULL, accept_clist, NULL, NULL, "$Revision: 254 $");
	55
	56	/*
	57	* m_accept - ACCEPT command handler
	58	* parv[0] = sender prefix
	59	* parv[1] = servername
	60	*/
	61	static int
	62	m_accept(struct Client client_p, struct Client source_p, int parc, const char *parv[])
	63	{
	64	char *nick;
65	char *p = NULL;
66	static char addbuf[BUFSIZE];
67	static char delbuf[BUFSIZE];
68	struct Client *target_p;
69	int accept_num;
70
71	if(parv[1] == '')
72	{
73	list_accepts(source_p);
74	return 0;
75	}
76
77	build_nicklist(source_p, addbuf, delbuf, parv[1]);
78
79	/* parse the delete list */
80	for (nick = strtoken(&p, delbuf, ","); nick != NULL; nick = strtoken(&p, NULL, ","))
81	{
82	/* shouldnt happen, but lets be paranoid */
83	if((target_p = find_named_person(nick)) == NULL)
84	{
85	sendto_one_numeric(source_p, ERR_NOSUCHNICK,
86	form_str(ERR_NOSUCHNICK), nick);
87	continue;
88	}
89
90	/* user isnt on clients accept list */
91	if(!accept_message(target_p, source_p))
92	{
93	sendto_one(source_p, form_str(ERR_ACCEPTNOT),
94	me.name, source_p->name, target_p->name);
95	continue;
96	}
97
9f6c3353 JT	98	rb_dlinkFindDestroy(target_p, &source_p->localClient->allow_list);
9f6c3353 JT	99	rb_dlinkFindDestroy(source_p, &target_p->on_allow_list);
212380e3	100	}
	101
	102	/* get the number of accepts they have */
08d11e34	103	accept_num = rb_dlink_list_length(&source_p->localClient->allow_list);
212380e3	104
	105	/* parse the add list */
	106	for (nick = strtoken(&p, addbuf, ","); nick; nick = strtoken(&p, NULL, ","))
	107	{
	108	/* shouldnt happen, but lets be paranoid */
	109	if((target_p = find_named_person(nick)) == NULL)
	110	{
	111	sendto_one_numeric(source_p, ERR_NOSUCHNICK,
	112	form_str(ERR_NOSUCHNICK), nick);
	113	continue;
	114	}
	115
	116	/* user is already on clients accept list */
	117	if(accept_message(target_p, source_p))
	118	{
	119	sendto_one(source_p, form_str(ERR_ACCEPTEXIST),
	120	me.name, source_p->name, target_p->name);
	121	continue;
	122	}
	123
	124	if(accept_num >= ConfigFileEntry.max_accept)
	125	{
	126	sendto_one(source_p, form_str(ERR_ACCEPTFULL), me.name, source_p->name);
	127	return 0;
	128	}
	129
	130	/* why is this here? */
	131	/* del_from accept(target_p, source_p); */
	132	add_accept(source_p, target_p);
	133	accept_num++;
	134	}
	135
	136	return 0;
	137	}
	138
	139	/*
	140	* build_nicklist()
	141	*
	142	* input - pointer to client
	143	* - pointer to addbuffer
	144	* - pointer to remove buffer
	145	* - pointer to list of nicks
	146	* output -
	147	* side effects - addbuf/delbuf are modified to give valid nicks
	148	*/
	149	static void
	150	build_nicklist(struct Client source_p, char addbuf, char delbuf, const char nicks)
	151	{
	152	char *name;
	153	char *p;
	154	int lenadd;
	155	int lendel;
	156	int del;
	157	struct Client *target_p;
	158	char *n = LOCAL_COPY(nicks);
	159
	160	addbuf = delbuf = '\0';
	161	del = lenadd = lendel = 0;
	162
	163	/* build list of clients to add into addbuf, clients to remove in delbuf */
	164	for (name = strtoken(&p, n, ","); name; name = strtoken(&p, NULL, ","), del = 0)
	165	{
	166	if(*name == '-')
	167	{
168	del = 1;
169	name++;
170	}
171
172	if((target_p = find_named_person(name)) == NULL)
173	{
174	sendto_one_numeric(source_p, ERR_NOSUCHNICK,
175	form_str(ERR_NOSUCHNICK), name);
176	continue;
177	}
178
179	/* we're deleting a client */
180	if(del)
181	{
182	if(*delbuf)
183	(void) strcat(delbuf, ",");
184
185	(void) strncat(delbuf, name, BUFSIZE - lendel - 1);
186	lendel += strlen(name) + 1;
187	}
188	/* adding a client */
189	else
190	{
191	if(*addbuf)
192	(void) strcat(addbuf, ",");
193
194	(void) strncat(addbuf, name, BUFSIZE - lenadd - 1);
195	lenadd += strlen(name) + 1;
196	}
197	}
198	}
199
200	/*
201	* add_accept()
202	*
203	* input - pointer to clients accept list to add to
204	* - pointer to client to add
205	* output - none
206	* side effects - target is added to clients list
207	*/
208	static void
209	add_accept(struct Client source_p, struct Client target_p)
210	{
211	dlinkAddAlloc(target_p, &source_p->localClient->allow_list);
212	dlinkAddAlloc(source_p, &target_p->on_allow_list);
213	}
214
215
216	/*
217	* list_accepts()
218	*
219	* input - pointer to client
220	* output - none
221	* side effects - print accept list to client
222	*/
223	static void
224	list_accepts(struct Client *source_p)
225	{
08d11e34	226	rb_dlink_node *ptr;
212380e3	227	struct Client *target_p;
	228	char nicks[BUFSIZE];
	229	int len = 0;
	230	int len2 = 0;
	231	int count = 0;
	232
	233	*nicks = '\0';
	234	len2 = strlen(source_p->name) + 10;
	235
08d11e34	236	RB_DLINK_FOREACH(ptr, source_p->localClient->allow_list.head)
212380e3	237	{
	238	target_p = ptr->data;
	239
	240	if(target_p)
	241	{
	242
	243	if((len + strlen(target_p->name) + len2 > BUFSIZE) \|\| count > 14)
	244	{
	245	sendto_one(source_p, form_str(RPL_ACCEPTLIST),
	246	me.name, source_p->name, nicks);
	247
	248	len = count = 0;
	249	*nicks = '\0';
	250	}
	251
581fa5c4	252	len += rb_snprintf(nicks + len, sizeof(nicks) - len, "%s ", target_p->name);
212380e3	253	count++;
	254	}
	255	}
	256
	257	if(*nicks)
	258	sendto_one(source_p, form_str(RPL_ACCEPTLIST),
	259	me.name, source_p->name, nicks);
	260
	261	sendto_one(source_p, form_str(RPL_ENDOFACCEPT),
	262	me.name, source_p->name);
	263
	264	}