ircd-hybrid-8/modules/m_kline.c

/*
 *  ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
 *  m_kline.c: Bans a 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 "list.h"
#include "channel.h"
#include "client.h"
#include "common.h"
#include "irc_string.h"
#include "sprintf_irc.h"
#include "ircd.h"
#include "hostmask.h"
#include "numeric.h"
#include "fdlist.h"
#include "s_bsd.h"
#include "s_conf.h"
#include "s_log.h"
#include "s_misc.h"
#include "send.h"
#include "hash.h"
#include "handlers.h"
#include "s_serv.h"
#include "msg.h"
#include "s_gline.h"
#include "parse.h"
#include "modules.h"


static void me_kline(struct Client *, struct Client *, int, char **);
static void mo_kline(struct Client *, struct Client *, int, char **);
static void ms_kline(struct Client *, struct Client *, int, char **);
static void me_unkline(struct Client *, struct Client *, int, char **);
static void mo_unkline(struct Client *, struct Client *, int, char **);
static void ms_unkline(struct Client *, struct Client *, int, char **);

static int already_placed_kline(struct Client *, const char *, const char *, int);
static void apply_kline(struct Client *, struct ConfItem *, const char *, time_t);
static void apply_tkline(struct Client *, struct ConfItem *, int);

static char buffer[IRCD_BUFSIZE];
static int remove_tkline_match(const char *, const char *);

struct Message kline_msgtab = {
  "KLINE", 0, 0, 2, 0, MFLG_SLOW, 0,
   {m_unregistered, m_not_oper, ms_kline, me_kline, mo_kline, m_ignore}
};

struct Message unkline_msgtab = {
  "UNKLINE", 0, 0, 2, 0, MFLG_SLOW, 0,
   {m_unregistered, m_not_oper, ms_unkline, me_unkline, mo_unkline, m_ignore}
};

void
_modinit(void)
{
  mod_add_cmd(&kline_msgtab);
  mod_add_cmd(&unkline_msgtab);
  add_capability("KLN", CAP_KLN, 1);
  add_capability("UNKLN", CAP_UNKLN, 1);
}

void
_moddeinit(void)
{
  mod_del_cmd(&kline_msgtab);
  mod_del_cmd(&unkline_msgtab);
  delete_capability("UNKLN");
  delete_capability("KLN");
}

const char *_version = "$Revision$";

/* mo_kline()
 *
 * inputs       - pointer to server
 *              - pointer to client
 *              - parameter count
 *              - parameter list
 * output       -
 * side effects - k line is added
 */
static void
mo_kline(struct Client *client_p, struct Client *source_p,
         int parc, char **parv)
{
  char *reason = NULL;
  char *oper_reason;
  char *user = NULL;
  char *host = NULL;
  const char *current_date;
  char *target_server = NULL;
  struct ConfItem *conf;
  struct AccessItem *aconf;
  time_t tkline_time = 0;
  time_t cur_time;

  if (!IsOperK(source_p))
  {
    sendto_one(source_p, form_str(ERR_NOPRIVS),
               me.name, source_p->name, "kline");
    return;
  }

  if (parse_aline("KLINE", source_p, parc, parv,
                  AWILD, &user, &host, &tkline_time, &target_server, &reason) < 0)
    return;

  if (target_server != NULL)
  {
    if (HasID(source_p))
    {
      sendto_server(NULL, NULL, CAP_KLN|CAP_TS6, NOCAPS,
                    ":%s KLINE %s %lu %s %s :%s",
                    source_p->id, target_server, (unsigned long)tkline_time,
                    user, host, reason);
      sendto_server(NULL, NULL, CAP_KLN, CAP_TS6,
                    ":%s KLINE %s %lu %s %s :%s",
                    source_p->name, target_server, (unsigned long)tkline_time,
                    user, host, reason);
    }
    else
      sendto_server(NULL, NULL, CAP_KLN, NOCAPS,
                    ":%s KLINE %s %lu %s %s :%s",
                    source_p->name, target_server, (unsigned long)tkline_time,
                    user, host, reason);

    /* Allow ON to apply local kline as well if it matches */
    if (!match(target_server, me.name))
      return;
  }
  else
    cluster_a_line(source_p, "KLINE", CAP_KLN, SHARED_KLINE,
                   "%d %s %s :%s", tkline_time, user, host, reason);

  if (already_placed_kline(source_p, user, host, YES))
    return;

  /* Look for an oper reason */
  if ((oper_reason = strchr(reason, '|')) != NULL)
    *oper_reason++ = '\0';

  cur_time = CurrentTime;
  current_date = smalldate(cur_time);
  conf = make_conf_item(KLINE_TYPE);
  aconf = map_to_conf(conf);

  DupString(aconf->host, host);
  DupString(aconf->user, user);

  if (tkline_time != 0)
  {
    ircsprintf(buffer, "Temporary K-line %d min. - %s (%s)",
               (int)(tkline_time/60), reason, current_date);
    DupString(aconf->reason, buffer);

    if (oper_reason != NULL)
      DupString(aconf->oper_reason, oper_reason);
    apply_tkline(source_p, conf, tkline_time);
  }
  else
  {
    ircsprintf(buffer, "%s (%s)", reason, current_date);
    DupString(aconf->reason, buffer);

    if (oper_reason != NULL)
      DupString(aconf->oper_reason, oper_reason);
    apply_kline(source_p, conf, current_date, cur_time);
  }
}

/* me_kline - handle remote kline. no propagation */
static void
me_kline(struct Client *client_p, struct Client *source_p,
         int parc, char *parv[])
{
  struct ConfItem *conf=NULL;
  struct AccessItem *aconf=NULL;
  int tkline_time;
  const char* current_date;
  time_t cur_time;
  char *kuser, *khost, *kreason, *oper_reason;

  if (parc != 6 || EmptyString(parv[5]))
    return;

  if (!match(parv[1], me.name))
    return;

  tkline_time = valid_tkline(parv[2], TK_SECONDS);
  kuser = parv[3];
  khost = parv[4];
  kreason = parv[5];

  if ((oper_reason = strchr(kreason, '|')) != NULL)
    *oper_reason++ = '\0';

  cur_time = CurrentTime;
  current_date = smalldate(cur_time);

  if (find_matching_name_conf(ULINE_TYPE, source_p->servptr->name,
                              source_p->username, source_p->host,
                              SHARED_KLINE))
  {
    if (!IsClient(source_p) ||
        already_placed_kline(source_p, kuser, khost, YES))
      return;

    conf = make_conf_item(KLINE_TYPE);
    aconf = map_to_conf(conf);
    DupString(aconf->host, khost);
    DupString(aconf->user, kuser);

    if (tkline_time != 0)
    {
      ircsprintf(buffer, "Temporary K-line %d min. - %s (%s)",
                 (int)(tkline_time/60), kreason, current_date);
      DupString(aconf->reason, buffer);

      if (oper_reason != NULL)
        DupString(aconf->oper_reason, oper_reason);
      apply_tkline(source_p, conf, tkline_time);
    }
    else
    {
      ircsprintf(buffer, "%s (%s)", kreason, current_date);
      DupString(aconf->reason, buffer);

      if (oper_reason != NULL)
        DupString(aconf->oper_reason, oper_reason);
      apply_kline(source_p, conf, current_date, cur_time);
    }
  }
}

static void
ms_kline(struct Client *client_p, struct Client *source_p,
         int parc, char *parv[])
{
  if (parc != 6 || EmptyString(parv[5]))
    return;

  /* parv[0]  parv[1]        parv[2]      parv[3]  parv[4]  parv[5] */
  /* oper     target_server  tkline_time  user     host     reason */
  sendto_match_servs(source_p, parv[1], CAP_KLN,
                     "KLINE %s %s %s %s :%s",
                     parv[1], parv[2], parv[3], parv[4], parv[5]);

  me_kline(client_p, source_p, parc, parv);
}

/* apply_kline()
 *
 * inputs       -
 * output       - NONE
 * side effects - kline as given, is added to the hashtable
 *                and conf file
 */
static void 
apply_kline(struct Client *source_p, struct ConfItem *conf,
            const char *current_date, time_t cur_time)
{
  struct AccessItem *aconf = map_to_conf(conf);

  add_conf_by_address(CONF_KILL, aconf);
  write_conf_line(source_p, conf, current_date, cur_time);
  /* Now, activate kline against current online clients */
  rehashed_klines = 1;
}

/* apply_tkline()
 *
 * inputs       -
 * output       - NONE
 * side effects - tkline as given is placed
 */
static void
apply_tkline(struct Client *source_p, struct ConfItem *conf,
             int tkline_time)
{
  struct AccessItem *aconf;

  aconf = (struct AccessItem *)map_to_conf(conf);
  aconf->hold = CurrentTime + tkline_time;
  add_temp_line(conf);
  sendto_realops_flags(UMODE_ALL, L_ALL,
                       "%s added temporary %d min. K-Line for [%s@%s] [%s]",
                       get_oper_name(source_p), tkline_time/60,
                       aconf->user, aconf->host,
                       aconf->reason);
  sendto_one(source_p, ":%s NOTICE %s :Added temporary %d min. K-Line [%s@%s]",
             MyConnect(source_p) ? me.name : ID_or_name(&me, source_p->from),
             source_p->name, tkline_time/60, aconf->user, aconf->host);
  ilog(L_TRACE, "%s added temporary %d min. K-Line for [%s@%s] [%s]",
       source_p->name, tkline_time/60,
       aconf->user, aconf->host, aconf->reason);
  log_oper_action(LOG_TEMP_KLINE_TYPE, source_p, "[%s@%s] [%s]\n",
                  aconf->user, aconf->host, aconf->reason);
  rehashed_klines = 1;
}

/* already_placed_kline()
 * inputs       - user to complain to, username & host to check for
 * outputs      - returns 1 on existing K-line, 0 if doesn't exist
 * side effects - notifies source_p if the K-line already exists
 */
/*
 * Note: This currently works if the new K-line is a special case of an
 *       existing K-line, but not the other way round. To do that we would
 *       have to walk the hash and check every existing K-line. -A1kmm.
 */
static int
already_placed_kline(struct Client *source_p, const char *luser, const char *lhost, int warn)
{
  const char *reason;
  struct irc_ssaddr iphost, *piphost;
  struct AccessItem *aconf;
  int t;

  if ((t = parse_netmask(lhost, &iphost, &t)) != HM_HOST)
  {
#ifdef IPV6
    if (t == HM_IPV6)
      t = AF_INET6;
    else
#endif
      t = AF_INET;
    piphost = &iphost;
  }
  else
  {
    t = 0;
    piphost = NULL;
  }

  if ((aconf = find_conf_by_address(lhost, piphost, CONF_KILL, t, luser, NULL)))
  {
    if (warn)
    {
      reason = aconf->reason ? aconf->reason : "No reason";
      sendto_one(source_p,
                 ":%s NOTICE %s :[%s@%s] already K-Lined by [%s@%s] - %s",
                 me.name, source_p->name, luser, lhost, aconf->user,
                 aconf->host, reason);
    }
    return(1);
  }

  return(0);
}

/*
** mo_unkline
** Added Aug 31, 1997 
** common (Keith Fralick) fralick@gate.net
**
**      parv[0] = sender
**      parv[1] = address to remove
*
*
*/
static void
mo_unkline(struct Client *client_p,struct Client *source_p,
           int parc, char *parv[])
{
  char *target_server = NULL;
  char *user, *host;

  if (!IsOperUnkline(source_p))
  {
    sendto_one(source_p, form_str(ERR_NOPRIVS),
               me.name, source_p->name, "unkline");
    return;
  }

  if (parc < 2 || EmptyString(parv[1]))
  {
    sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
               me.name, source_p->name, "UNKLINE");
    return;
  }

  if (parse_aline("UNKLINE", source_p, parc, parv, 0, &user,
                  &host, NULL, &target_server, NULL) < 0)
    return;

  if (target_server != NULL)
  {
     sendto_match_servs(source_p, target_server, CAP_UNKLN,
                        "UNKLINE %s %s %s",
                        target_server, user, host);

    /* Allow ON to apply local unkline as well if it matches */
    if (!match(target_server, me.name))
      return;
  }
  else
    cluster_a_line(source_p, "UNKLINE", CAP_UNKLN, SHARED_UNKLINE,
                   "%s %s", user, host);

  if (remove_tkline_match(host, user))
  {
    sendto_one(source_p,
               ":%s NOTICE %s :Un-klined [%s@%s] from temporary K-Lines",
               me.name, source_p->name, user, host);
    sendto_realops_flags(UMODE_ALL, L_ALL,
                         "%s has removed the temporary K-Line for: [%s@%s]",
                         get_oper_name(source_p), user, host);
    ilog(L_NOTICE, "%s removed temporary K-Line for [%s@%s]",
         source_p->name, user, host);
    return;
  }

  if (remove_conf_line(KLINE_TYPE, source_p, user, host) > 0)
  {
    sendto_one(source_p, ":%s NOTICE %s :K-Line for [%s@%s] is removed", 
               me.name, source_p->name, user,host);
    sendto_realops_flags(UMODE_ALL, L_ALL,
                         "%s has removed the K-Line for: [%s@%s]",
                         get_oper_name(source_p), user, host);
    ilog(L_NOTICE, "%s removed K-Line for [%s@%s]",
         source_p->name, user, host);
  }
  else
    sendto_one(source_p, ":%s NOTICE %s :No K-Line for [%s@%s] found", 
               me.name, source_p->name, user, host);
}

/* me_unkline()
 *
 * inputs       - server
 *              - client
 *              - parc
 *              - parv
 * outputs      - none
 * side effects - if server is authorized, kline is removed
 *                does not propagate message
 */
static void
me_unkline(struct Client *client_p, struct Client *source_p,
           int parc, char *parv[])
{
  const char *kuser, *khost;

  if (parc != 4)
    return;

  kuser = parv[2];
  khost = parv[3];

  if (!IsClient(source_p) || !match(parv[1], me.name))
    return;

  if (find_matching_name_conf(ULINE_TYPE,
                                   source_p->servptr->name,
                                   source_p->username, source_p->host,
                                   SHARED_UNKLINE))
  {
    if (remove_tkline_match(khost, kuser))
    {
      sendto_one(source_p,
                 ":%s NOTICE %s :Un-klined [%s@%s] from temporary K-Lines",
                 me.name, source_p->name, kuser, khost);
      sendto_realops_flags(UMODE_ALL, L_ALL,  
                           "%s has removed the temporary K-Line for: [%s@%s]",
                           get_oper_name(source_p), kuser, khost);
      ilog(L_NOTICE, "%s removed temporary K-Line for [%s@%s]",
           source_p->name, kuser, khost);
      return;
    }

    if (remove_conf_line(KLINE_TYPE, source_p, kuser, khost) > 0)
    {
      sendto_one(source_p, ":%s NOTICE %s :K-Line for [%s@%s] is removed",
                 me.name, source_p->name, kuser, khost);
      sendto_realops_flags(UMODE_ALL, L_ALL,
                           "%s has removed the K-Line for: [%s@%s]",
                         get_oper_name(source_p), kuser, khost);

      ilog(L_NOTICE, "%s removed K-Line for [%s@%s]",
           source_p->name, kuser, khost);
    }
    else
      sendto_one(source_p, ":%s NOTICE %s :No K-Line for [%s@%s] found",
                 me.name, source_p->name, kuser, khost);
  }
}

/* ms_unkline - propagates and handles a remote unkline message */
static void
ms_unkline(struct Client *client_p, struct Client *source_p,
           int parc, char *parv[])
{
  if (parc != 4)
    return;

  sendto_match_servs(source_p, parv[1], CAP_UNKLN,
                     "UNKLINE %s %s %s",
                     parv[1], parv[2], parv[3]);

  me_unkline(client_p, source_p, parc, parv);
}

/* static int remove_tkline_match(const char *host, const char *user)
 * Input: A hostname, a username to unkline.
 * Output: returns YES on success, NO if no tkline removed.
 * Side effects: Any matching tklines are removed.
 */
static int
remove_tkline_match(const char *host, const char *user)
{
  struct AccessItem *tk_c;
  dlink_node *tk_n;
  struct irc_ssaddr addr, caddr;
  int nm_t, cnm_t, bits, cbits;
  nm_t = parse_netmask(host, &addr, &bits);

  DLINK_FOREACH(tk_n, temporary_klines.head)
  {
    tk_c = map_to_conf(tk_n->data);
    cnm_t = parse_netmask(tk_c->host, &caddr, &cbits);
    if (cnm_t != nm_t || irccmp(user, tk_c->user))
      continue;
    if ((nm_t==HM_HOST && !irccmp(tk_c->host, host)) ||
        (nm_t==HM_IPV4 && bits==cbits && match_ipv4(&addr, &caddr, bits))
#ifdef IPV6
       || (nm_t==HM_IPV6 && bits==cbits && match_ipv6(&addr, &caddr, bits))
#endif
       )
      {
        dlinkDelete(tk_n, &temporary_klines);
        delete_one_address_conf(tk_c->host, tk_c);
        return 1;
      }
  }

  return 0;
}
Revision:	1156
Committed:	Tue Aug 9 20:29:20 2011 UTC (14 years, 11 months ago) by michael
Content type:	text/x-csrc
File size:	16130 byte(s)
Log Message:	- create ircd-hybrid-8 "branch"
#	User	Rev	Content
1	adx	30	/*
2			* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3			* m_kline.c: Bans a 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	michael	1011	#include "list.h"
27	adx	30	#include "channel.h"
28			#include "client.h"
29			#include "common.h"
30			#include "irc_string.h"
31			#include "sprintf_irc.h"
32			#include "ircd.h"
33			#include "hostmask.h"
34			#include "numeric.h"
35			#include "fdlist.h"
36			#include "s_bsd.h"
37			#include "s_conf.h"
38			#include "s_log.h"
39			#include "s_misc.h"
40			#include "send.h"
41			#include "hash.h"
42			#include "handlers.h"
43			#include "s_serv.h"
44			#include "msg.h"
45			#include "s_gline.h"
46			#include "parse.h"
47			#include "modules.h"
48
49	michael	611
50	adx	30	static void me_kline(struct Client , struct Client , int, char **);
51			static void mo_kline(struct Client , struct Client , int, char **);
52			static void ms_kline(struct Client , struct Client , int, char **);
53			static void me_unkline(struct Client , struct Client , int, char **);
54			static void mo_unkline(struct Client , struct Client , int, char **);
55			static void ms_unkline(struct Client , struct Client , int, char **);
56
57	michael	1058	static int already_placed_kline(struct Client , const char , const char *, int);
58			static void apply_kline(struct Client , struct ConfItem , const char *, time_t);
59			static void apply_tkline(struct Client , struct ConfItem , int);
60
61			static char buffer[IRCD_BUFSIZE];
62	adx	30	static int remove_tkline_match(const char , const char );
63
64			struct Message kline_msgtab = {
65			"KLINE", 0, 0, 2, 0, MFLG_SLOW, 0,
66			{m_unregistered, m_not_oper, ms_kline, me_kline, mo_kline, m_ignore}
67			};
68
69			struct Message unkline_msgtab = {
70			"UNKLINE", 0, 0, 2, 0, MFLG_SLOW, 0,
71			{m_unregistered, m_not_oper, ms_unkline, me_unkline, mo_unkline, m_ignore}
72			};
73
74			void
75			_modinit(void)
76			{
77			mod_add_cmd(&kline_msgtab);
78			mod_add_cmd(&unkline_msgtab);
79			add_capability("KLN", CAP_KLN, 1);
80			add_capability("UNKLN", CAP_UNKLN, 1);
81			}
82
83			void
84			_moddeinit(void)
85			{
86			mod_del_cmd(&kline_msgtab);
87			mod_del_cmd(&unkline_msgtab);
88			delete_capability("UNKLN");
89			delete_capability("KLN");
90			}
91
92	knight	31	const char *_version = "$Revision$";
93	adx	30
94			/* mo_kline()
95			*
96			* inputs - pointer to server
97			* - pointer to client
98			* - parameter count
99			* - parameter list
100			* output -
101			* side effects - k line is added
102			*/
103			static void
104			mo_kline(struct Client client_p, struct Client source_p,
105	michael	1058	int parc, char **parv)
106	adx	30	{
107			char *reason = NULL;
108			char *oper_reason;
109			char *user = NULL;
110			char *host = NULL;
111			const char *current_date;
112			char *target_server = NULL;
113			struct ConfItem *conf;
114			struct AccessItem *aconf;
115			time_t tkline_time = 0;
116			time_t cur_time;
117
118			if (!IsOperK(source_p))
119			{
120			sendto_one(source_p, form_str(ERR_NOPRIVS),
121			me.name, source_p->name, "kline");
122			return;
123			}
124
125			if (parse_aline("KLINE", source_p, parc, parv,
126			AWILD, &user, &host, &tkline_time, &target_server, &reason) < 0)
127			return;
128
129			if (target_server != NULL)
130			{
131			if (HasID(source_p))
132			{
133	michael	885	sendto_server(NULL, NULL, CAP_KLN\|CAP_TS6, NOCAPS,
134	adx	30	":%s KLINE %s %lu %s %s :%s",
135			source_p->id, target_server, (unsigned long)tkline_time,
136			user, host, reason);
137	michael	885	sendto_server(NULL, NULL, CAP_KLN, CAP_TS6,
138	adx	30	":%s KLINE %s %lu %s %s :%s",
139			source_p->name, target_server, (unsigned long)tkline_time,
140			user, host, reason);
141			}
142			else
143	michael	885	sendto_server(NULL, NULL, CAP_KLN, NOCAPS,
144	adx	30	":%s KLINE %s %lu %s %s :%s",
145			source_p->name, target_server, (unsigned long)tkline_time,
146			user, host, reason);
147
148			/* Allow ON to apply local kline as well if it matches */
149			if (!match(target_server, me.name))
150			return;
151			}
152			else
153			cluster_a_line(source_p, "KLINE", CAP_KLN, SHARED_KLINE,
154	michael	1058	"%d %s %s :%s", tkline_time, user, host, reason);
155	adx	30
156			if (already_placed_kline(source_p, user, host, YES))
157			return;
158
159			/* Look for an oper reason */
160			if ((oper_reason = strchr(reason, '\|')) != NULL)
161			*oper_reason++ = '\0';
162
163			cur_time = CurrentTime;
164			current_date = smalldate(cur_time);
165			conf = make_conf_item(KLINE_TYPE);
166			aconf = map_to_conf(conf);
167
168			DupString(aconf->host, host);
169			DupString(aconf->user, user);
170
171			if (tkline_time != 0)
172			{
173			ircsprintf(buffer, "Temporary K-line %d min. - %s (%s)",
174			(int)(tkline_time/60), reason, current_date);
175			DupString(aconf->reason, buffer);
176
177			if (oper_reason != NULL)
178			DupString(aconf->oper_reason, oper_reason);
179			apply_tkline(source_p, conf, tkline_time);
180			}
181			else
182			{
183			ircsprintf(buffer, "%s (%s)", reason, current_date);
184			DupString(aconf->reason, buffer);
185
186			if (oper_reason != NULL)
187			DupString(aconf->oper_reason, oper_reason);
188			apply_kline(source_p, conf, current_date, cur_time);
189			}
190			}
191
192			/* me_kline - handle remote kline. no propagation */
193			static void
194			me_kline(struct Client client_p, struct Client source_p,
195			int parc, char *parv[])
196			{
197			struct ConfItem *conf=NULL;
198			struct AccessItem *aconf=NULL;
199			int tkline_time;
200			const char* current_date;
201			time_t cur_time;
202			char kuser, khost, kreason, oper_reason;
203
204	michael	352	if (parc != 6 \|\| EmptyString(parv[5]))
205	adx	30	return;
206
207			if (!match(parv[1], me.name))
208			return;
209
210			tkline_time = valid_tkline(parv[2], TK_SECONDS);
211			kuser = parv[3];
212			khost = parv[4];
213			kreason = parv[5];
214
215			if ((oper_reason = strchr(kreason, '\|')) != NULL)
216			*oper_reason++ = '\0';
217
218			cur_time = CurrentTime;
219			current_date = smalldate(cur_time);
220
221			if (find_matching_name_conf(ULINE_TYPE, source_p->servptr->name,
222			source_p->username, source_p->host,
223			SHARED_KLINE))
224			{
225			if (!IsClient(source_p) \|\|
226			already_placed_kline(source_p, kuser, khost, YES))
227			return;
228
229			conf = make_conf_item(KLINE_TYPE);
230			aconf = map_to_conf(conf);
231			DupString(aconf->host, khost);
232			DupString(aconf->user, kuser);
233
234			if (tkline_time != 0)
235			{
236			ircsprintf(buffer, "Temporary K-line %d min. - %s (%s)",
237			(int)(tkline_time/60), kreason, current_date);
238			DupString(aconf->reason, buffer);
239
240			if (oper_reason != NULL)
241			DupString(aconf->oper_reason, oper_reason);
242			apply_tkline(source_p, conf, tkline_time);
243			}
244			else
245			{
246			ircsprintf(buffer, "%s (%s)", kreason, current_date);
247			DupString(aconf->reason, buffer);
248
249			if (oper_reason != NULL)
250			DupString(aconf->oper_reason, oper_reason);
251			apply_kline(source_p, conf, current_date, cur_time);
252			}
253			}
254			}
255
256			static void
257			ms_kline(struct Client client_p, struct Client source_p,
258	michael	1058	int parc, char *parv[])
259	adx	30	{
260	michael	352	if (parc != 6 \|\| EmptyString(parv[5]))
261	adx	30	return;
262
263			/* parv[0] parv[1] parv[2] parv[3] parv[4] parv[5] */
264			/* oper target_server tkline_time user host reason */
265			sendto_match_servs(source_p, parv[1], CAP_KLN,
266			"KLINE %s %s %s %s :%s",
267			parv[1], parv[2], parv[3], parv[4], parv[5]);
268
269			me_kline(client_p, source_p, parc, parv);
270			}
271
272			/* apply_kline()
273			*
274			* inputs -
275			* output - NONE
276			* side effects - kline as given, is added to the hashtable
277			* and conf file
278			*/
279			static void
280			apply_kline(struct Client source_p, struct ConfItem conf,
281	michael	1058	const char *current_date, time_t cur_time)
282	adx	30	{
283			struct AccessItem *aconf = map_to_conf(conf);
284
285			add_conf_by_address(CONF_KILL, aconf);
286			write_conf_line(source_p, conf, current_date, cur_time);
287			/* Now, activate kline against current online clients */
288			rehashed_klines = 1;
289			}
290
291			/* apply_tkline()
292			*
293			* inputs -
294			* output - NONE
295			* side effects - tkline as given is placed
296			*/
297			static void
298			apply_tkline(struct Client source_p, struct ConfItem conf,
299			int tkline_time)
300			{
301			struct AccessItem *aconf;
302
303			aconf = (struct AccessItem *)map_to_conf(conf);
304			aconf->hold = CurrentTime + tkline_time;
305			add_temp_line(conf);
306			sendto_realops_flags(UMODE_ALL, L_ALL,
307			"%s added temporary %d min. K-Line for [%s@%s] [%s]",
308			get_oper_name(source_p), tkline_time/60,
309			aconf->user, aconf->host,
310			aconf->reason);
311			sendto_one(source_p, ":%s NOTICE %s :Added temporary %d min. K-Line [%s@%s]",
312			MyConnect(source_p) ? me.name : ID_or_name(&me, source_p->from),
313			source_p->name, tkline_time/60, aconf->user, aconf->host);
314			ilog(L_TRACE, "%s added temporary %d min. K-Line for [%s@%s] [%s]",
315			source_p->name, tkline_time/60,
316			aconf->user, aconf->host, aconf->reason);
317			log_oper_action(LOG_TEMP_KLINE_TYPE, source_p, "[%s@%s] [%s]\n",
318			aconf->user, aconf->host, aconf->reason);
319			rehashed_klines = 1;
320			}
321
322			/* already_placed_kline()
323			* inputs - user to complain to, username & host to check for
324			* outputs - returns 1 on existing K-line, 0 if doesn't exist
325			* side effects - notifies source_p if the K-line already exists
326			*/
327			/*
328			* Note: This currently works if the new K-line is a special case of an
329			* existing K-line, but not the other way round. To do that we would
330			* have to walk the hash and check every existing K-line. -A1kmm.
331			*/
332			static int
333			already_placed_kline(struct Client source_p, const char luser, const char *lhost, int warn)
334			{
335			const char *reason;
336			struct irc_ssaddr iphost, *piphost;
337			struct AccessItem *aconf;
338			int t;
339
340			if ((t = parse_netmask(lhost, &iphost, &t)) != HM_HOST)
341			{
342			#ifdef IPV6
343			if (t == HM_IPV6)
344			t = AF_INET6;
345			else
346			#endif
347			t = AF_INET;
348			piphost = &iphost;
349			}
350			else
351			{
352			t = 0;
353			piphost = NULL;
354			}
355
356			if ((aconf = find_conf_by_address(lhost, piphost, CONF_KILL, t, luser, NULL)))
357			{
358			if (warn)
359			{
360			reason = aconf->reason ? aconf->reason : "No reason";
361			sendto_one(source_p,
362			":%s NOTICE %s :[%s@%s] already K-Lined by [%s@%s] - %s",
363			me.name, source_p->name, luser, lhost, aconf->user,
364			aconf->host, reason);
365			}
366			return(1);
367			}
368
369			return(0);
370			}
371
372			/*
373			** mo_unkline
374			** Added Aug 31, 1997
375			** common (Keith Fralick) fralick@gate.net
376			**
377			** parv[0] = sender
378			** parv[1] = address to remove
379			*
380			*
381			*/
382			static void
383			mo_unkline(struct Client client_p,struct Client source_p,
384			int parc, char *parv[])
385			{
386			char *target_server = NULL;
387			char user, host;
388
389			if (!IsOperUnkline(source_p))
390			{
391			sendto_one(source_p, form_str(ERR_NOPRIVS),
392			me.name, source_p->name, "unkline");
393			return;
394			}
395
396			if (parc < 2 \|\| EmptyString(parv[1]))
397			{
398			sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
399			me.name, source_p->name, "UNKLINE");
400			return;
401			}
402
403			if (parse_aline("UNKLINE", source_p, parc, parv, 0, &user,
404			&host, NULL, &target_server, NULL) < 0)
405			return;
406
407			if (target_server != NULL)
408			{
409			sendto_match_servs(source_p, target_server, CAP_UNKLN,
410			"UNKLINE %s %s %s",
411			target_server, user, host);
412
413			/* Allow ON to apply local unkline as well if it matches */
414			if (!match(target_server, me.name))
415			return;
416			}
417			else
418			cluster_a_line(source_p, "UNKLINE", CAP_UNKLN, SHARED_UNKLINE,
419	michael	1058	"%s %s", user, host);
420	adx	30
421			if (remove_tkline_match(host, user))
422			{
423			sendto_one(source_p,
424			":%s NOTICE %s :Un-klined [%s@%s] from temporary K-Lines",
425			me.name, source_p->name, user, host);
426			sendto_realops_flags(UMODE_ALL, L_ALL,
427			"%s has removed the temporary K-Line for: [%s@%s]",
428			get_oper_name(source_p), user, host);
429			ilog(L_NOTICE, "%s removed temporary K-Line for [%s@%s]",
430			source_p->name, user, host);
431			return;
432			}
433
434			if (remove_conf_line(KLINE_TYPE, source_p, user, host) > 0)
435			{
436			sendto_one(source_p, ":%s NOTICE %s :K-Line for [%s@%s] is removed",
437	michael	1058	me.name, source_p->name, user,host);
438	adx	30	sendto_realops_flags(UMODE_ALL, L_ALL,
439	michael	1058	"%s has removed the K-Line for: [%s@%s]",
440			get_oper_name(source_p), user, host);
441	adx	30	ilog(L_NOTICE, "%s removed K-Line for [%s@%s]",
442	michael	1058	source_p->name, user, host);
443	adx	30	}
444			else
445			sendto_one(source_p, ":%s NOTICE %s :No K-Line for [%s@%s] found",
446			me.name, source_p->name, user, host);
447			}
448
449			/* me_unkline()
450			*
451			* inputs - server
452			* - client
453			* - parc
454			* - parv
455			* outputs - none
456			* side effects - if server is authorized, kline is removed
457			* does not propagate message
458			*/
459			static void
460			me_unkline(struct Client client_p, struct Client source_p,
461			int parc, char *parv[])
462			{
463			const char kuser, khost;
464
465			if (parc != 4)
466			return;
467
468			kuser = parv[2];
469			khost = parv[3];
470
471			if (!IsClient(source_p) \|\| !match(parv[1], me.name))
472			return;
473
474			if (find_matching_name_conf(ULINE_TYPE,
475			source_p->servptr->name,
476			source_p->username, source_p->host,
477			SHARED_UNKLINE))
478			{
479			if (remove_tkline_match(khost, kuser))
480			{
481			sendto_one(source_p,
482			":%s NOTICE %s :Un-klined [%s@%s] from temporary K-Lines",
483			me.name, source_p->name, kuser, khost);
484			sendto_realops_flags(UMODE_ALL, L_ALL,
485			"%s has removed the temporary K-Line for: [%s@%s]",
486			get_oper_name(source_p), kuser, khost);
487			ilog(L_NOTICE, "%s removed temporary K-Line for [%s@%s]",
488			source_p->name, kuser, khost);
489			return;
490			}
491
492			if (remove_conf_line(KLINE_TYPE, source_p, kuser, khost) > 0)
493			{
494			sendto_one(source_p, ":%s NOTICE %s :K-Line for [%s@%s] is removed",
495			me.name, source_p->name, kuser, khost);
496			sendto_realops_flags(UMODE_ALL, L_ALL,
497			"%s has removed the K-Line for: [%s@%s]",
498			get_oper_name(source_p), kuser, khost);
499
500			ilog(L_NOTICE, "%s removed K-Line for [%s@%s]",
501			source_p->name, kuser, khost);
502			}
503			else
504			sendto_one(source_p, ":%s NOTICE %s :No K-Line for [%s@%s] found",
505			me.name, source_p->name, kuser, khost);
506			}
507			}
508
509			/* ms_unkline - propagates and handles a remote unkline message */
510			static void
511			ms_unkline(struct Client client_p, struct Client source_p,
512			int parc, char *parv[])
513			{
514			if (parc != 4)
515			return;
516
517			sendto_match_servs(source_p, parv[1], CAP_UNKLN,
518			"UNKLINE %s %s %s",
519			parv[1], parv[2], parv[3]);
520
521			me_unkline(client_p, source_p, parc, parv);
522			}
523
524			/* static int remove_tkline_match(const char host, const char user)
525			* Input: A hostname, a username to unkline.
526			* Output: returns YES on success, NO if no tkline removed.
527			* Side effects: Any matching tklines are removed.
528			*/
529			static int
530			remove_tkline_match(const char host, const char user)
531			{
532			struct AccessItem *tk_c;
533			dlink_node *tk_n;
534			struct irc_ssaddr addr, caddr;
535			int nm_t, cnm_t, bits, cbits;
536			nm_t = parse_netmask(host, &addr, &bits);
537
538			DLINK_FOREACH(tk_n, temporary_klines.head)
539			{
540			tk_c = map_to_conf(tk_n->data);
541			cnm_t = parse_netmask(tk_c->host, &caddr, &cbits);
542			if (cnm_t != nm_t \|\| irccmp(user, tk_c->user))
543			continue;
544			if ((nm_t==HM_HOST && !irccmp(tk_c->host, host)) \|\|
545	michael	1058	(nm_t==HM_IPV4 && bits==cbits && match_ipv4(&addr, &caddr, bits))
546	adx	30	#ifdef IPV6
547	michael	1058	\|\| (nm_t==HM_IPV6 && bits==cbits && match_ipv6(&addr, &caddr, bits))
548	adx	30	#endif
549	michael	1058	)
550	adx	30	{
551	michael	1058	dlinkDelete(tk_n, &temporary_klines);
552			delete_one_address_conf(tk_c->host, tk_c);
553			return 1;
554	adx	30	}
555			}
556
557	michael	1058	return 0;
558	adx	30	}