ircd-hybrid/contrib/m_operspy.c

/************************************************************************
 *   IRC - Internet Relay Chat, contrib/m_operspy.c
 *   Copyright (C) 2002 William Bierman III and the 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 1, 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., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 *   $Id: m_operspy.c,v 1.67 2005/10/01 14:29:47 michael Exp $
 */

/***  PLEASE READ ME  ***/
/*
 *  This module gives an extraordinary amount of power to the opers
 *  who have the access to use it.  It allows for users' privacy to
 *  be pretty much obliterated.  The Hybrid Team assumes absolutely
 *  no responsibility for this file's (mis)use.
 *
 *    - billy-jon
 */

#include "stdinc.h"
#include "tools.h"
#include "irc_string.h"
#include "handlers.h"
#include "channel.h"
#include "channel_mode.h"
#include "client.h"
#include "common.h"     /* FALSE bleah */
#include "ircd.h"
#include "sprintf_irc.h"
#include "numeric.h"
#include "fdlist.h"
#include "s_bsd.h"
#include "s_conf.h"
#include "s_log.h"
#include "s_serv.h"
#include "s_misc.h"
#include "send.h"
#include "msg.h"
#include "parse.h"
#include "modules.h"
#include "hash.h"

/* enable logging of OPERSPY functions */
#define OPERSPY_LOG

/* enable this to log all local/remote operspy usage to a logfile */
#define OPERSPY_LOGFILE

/* enable this to send incoming operspy usage to connected +y (UMODE_SPY) opers */
#define OPERSPY_NOTICE

/* enable OPERSPY version of LIST */
#define OPERSPY_LIST

/* enable OPERSPY version of MODE */
#define OPERSPY_MODE

/* enable OPERSPY version of NAMES */
#define OPERSPY_NAMES

/* enable OPERSPY version of WHO */
#define OPERSPY_WHO

/* enable OPERSPY version of WHOIS */
#define OPERSPY_WHOIS

/* enable OPERSPY version of TOPIC */
#define OPERSPY_TOPIC

#define IsOperspy(x) (IsOper(x) && MyClient(x) && IsAdmin(x))

/* The commands we will add */
static void ms_operspy(struct Client *, struct Client *, int, char *[]);
static void mo_operspy(struct Client *, struct Client *, int, char *[]);

/* extensions for OPERSPY WHO */
static void do_who(struct Client *, struct Client *, char *, const char *);
static void who_global(struct Client *, char *, int);
static void do_who_on_channel(struct Client *, struct Channel *, char *);

static void operspy_list(struct Client *, int, char *[]);
static void operspy_mode(struct Client *, int, char *[]);
static void operspy_names(struct Client *, int, char *[]);
static void operspy_topic(struct Client *, int, char *[]);
static void operspy_who(struct Client *, int, char *[]);
static void operspy_whois(struct Client *, int, char *[]);


struct Message operspy_msgtab = {
  "OPERSPY", 0, 0, 3, 4, MFLG_SLOW, 0,
  {m_ignore, m_not_oper, ms_operspy, ms_operspy, mo_operspy, m_ignore}
};

static const struct operspy_s {
  const char *const cmd;
  void (*const func_p)(struct Client *, int, char *[]);
} operspy_table[] = {
#ifdef OPERSPY_LIST
  { "LIST", operspy_list },
#endif
#ifdef OPERSPY_MODE
  { "MODE", operspy_mode },
#endif
#ifdef OPERSPY_NAMES
  { "NAMES", operspy_names },
#endif
#ifdef OPERSPY_TOPIC
  { "TOPIC", operspy_topic },
#endif
#ifdef OPERSPY_WHO
  { "WHO", operspy_who },
#endif
#ifdef OPERSPY_WHOIS
  { "WHOIS", operspy_whois },
#endif
  { NULL, NULL }
};

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

void
_moddeinit(void)
{
  mod_del_cmd(&operspy_msgtab);
}
const char *_version = "$Revision: 1.67 $";
#endif

#ifdef OPERSPY_LOG
static void operspy_log(struct Client *, const char *, const char *);
#endif

static void
ms_operspy(struct Client *client_p, struct Client *source_p,
           int parc, char *parv[])
{
#ifdef OPERSPY_LOG
  operspy_log(source_p, parv[1], parv[2]);
#endif
}

/* mo_operspy()
 *      parv[1] = operspy command
 *      parv[2] = command parameter
 */
static void
mo_operspy(struct Client *client_p, struct Client *source_p,
           int parc, char *parv[])
{
  char cmdbuf[IRCD_BUFSIZE] = "<NONE>"; /* in case everything is undef'd */
  size_t bcnt = 0;
  const struct operspy_s *optr = NULL;

  if (!IsOperspy(client_p))
  {
    sendto_one(client_p, form_str(ERR_NOPRIVILEGES),
               me.name, client_p->name);
    return;
  }

  assert(client_p == source_p);

  for (optr = operspy_table; optr->cmd; ++optr)
  {
    if (!irccmp(optr->cmd, parv[1]))
    {
      (*optr->func_p)(client_p, parc, parv);
      return;
    }
  }

  for (optr = operspy_table; optr->cmd; ++optr)
  {
    /* str*cat is slow and sucks */
    bcnt += strlcpy(cmdbuf+bcnt, optr->cmd, sizeof(cmdbuf)-bcnt);
    if ((optr + 1)->cmd != NULL && bcnt < (sizeof(cmdbuf)-2))
    {
      cmdbuf[bcnt++] = ',';
      cmdbuf[bcnt++] = ' ';
    }
  }

  sendto_one(client_p, ":%s NOTICE %s :%s is not a valid option.  Choose from %s",
             me.name, client_p->name, parv[1], cmdbuf);
}

static void
operspy_list(struct Client *client_p, int parc, char *parv[])
{
  const dlink_node *ptr = NULL;
#ifdef OPERSPY_LOG
  operspy_log(client_p, "LIST", parv[2]);
#endif

  if (*parv[2] == '\0')
    return;

  sendto_one(client_p, form_str(RPL_LISTSTART),
             me.name, client_p->name);

  DLINK_FOREACH(ptr, global_channel_list.head)
  {
    const struct Channel *chptr_list = ptr->data;

    if (match_chan(parv[2], chptr_list->chname))
    {
      sendto_one(client_p, form_str(RPL_LIST), me.name, client_p->name,
                 chptr_list->chname, dlink_list_length(&chptr_list->members),
                 chptr_list->topic == NULL ? "" : chptr_list->topic);
    }
  }

  sendto_one(client_p, form_str(RPL_LISTEND),
             me.name, client_p->name);
}

static void
operspy_mode(struct Client *client_p, int parc, char *parv[])
{
  /* needed to preserve actual client status */
  int c_status = 0;
  char modebuf[MODEBUFLEN];
  char parabuf[MODEBUFLEN];
  struct Channel *chptr_mode = NULL;

  if ((chptr_mode = hash_find_channel(parv[2])) == NULL)
  {
    /*
     * according to m_mode.c, the channel *could* exist on the uplink still,
     * but I don't see how.  Even if it does, we won't be able to spy without
     * info.
     */ 
    sendto_one(client_p, form_str(ERR_NOSUCHCHANNEL),
               me.name, client_p->name, parv[2]);
    return;
  }

#ifdef OPERSPY_LOG
  operspy_log(client_p, "MODE", parv[2]);
#endif

  /* 
   * XXX - this is a dirty nasty kludge to trick channel_modes()
   * into giving us the key
   */
  c_status = client_p->status;
  client_p->status = STAT_SERVER;

  channel_modes(chptr_mode, client_p, modebuf, parabuf);
  client_p->status = c_status;

  sendto_one(client_p, form_str(RPL_CHANNELMODEIS),
             me.name, client_p->name, parv[2], modebuf, parabuf);
  sendto_one(client_p, form_str(RPL_CREATIONTIME),
             me.name, client_p->name, parv[2], chptr_mode->channelts);
}

static void
operspy_names(struct Client *client_p, int parc, char *parv[])
{
  /* as with mode, must preserve channel modes */
  struct Channel *chptr_names = NULL;

  if ((chptr_names = hash_find_channel(parv[2])) == NULL)
  {
    sendto_one(client_p, form_str(ERR_NOSUCHCHANNEL),
               me.name, client_p->name, parv[2]);
    return;
  }

#ifdef OPERSPY_LOG
  operspy_log(client_p, "NAMES", parv[2]);
#endif

  /* the way to go with this, rather than temporarily setting -sp,
   * is to temporarily add our client to the member list.  then
   * we can also list +i users.  an unfortunate side-effect of this
   * is that your nickname shows up in the list.  for now, there is
   * no easy way around it.
   */ 
  add_user_to_channel(chptr_names, client_p, CHFL_CHANOP, NO);
  channel_member_names(client_p, chptr_names, 1);
  remove_user_from_channel(find_channel_link(client_p, chptr_names));
}

static void
operspy_topic(struct Client *client_p, int parc, char *parv[])
{
  const struct Channel *chptr_topic = NULL;

  if ((chptr_topic = hash_find_channel(parv[2])) == NULL)
  {
    sendto_one(client_p, form_str(ERR_NOSUCHCHANNEL),
               me.name, client_p->name, parv[2]);
    return;
  }

#ifdef OPERSPY_LOG
  operspy_log(client_p, "TOPIC", parv[2]);
#endif

  if (chptr_topic->topic == NULL)
    sendto_one(client_p, form_str(RPL_NOTOPIC),
               me.name, client_p->name, parv[2]);
  else
  {
    sendto_one(client_p, form_str(RPL_TOPIC), me.name, client_p->name,
               chptr_topic->chname, chptr_topic->topic);
    sendto_one(client_p, form_str(RPL_TOPICWHOTIME), me.name,
               client_p->name, chptr_topic->chname, chptr_topic->topic_info,
               chptr_topic->topic_time);
  }
}

static void
operspy_who(struct Client *client_p, int parc, char *parv[])
{
  char *mask = parc > 2 ? parv[2] : NULL;
  int server_oper = parc > 3 ? (*parv[3] == 'o') : 0;
  struct Channel *chptr_who = NULL;
  struct Client *target_p_who = NULL;

  if (mask != NULL)
  {
    collapse(mask);

    if (*mask == '\0')
    {
      sendto_one(client_p, form_str(RPL_ENDOFWHO),
                 me.name, client_p->name, "*");
      return;
    }
  }
  else
  {
#ifdef OPERSPY_LOG
    operspy_log(client_p, "WHO", "*");
#endif
    who_global(client_p, NULL, server_oper);
    sendto_one(client_p, form_str(RPL_ENDOFWHO),
               me.name, client_p->name, "*");
    return;
  }

  /* /who #channel */
  if (IsChanPrefix(*mask))
  {
    if ((chptr_who = hash_find_channel(mask)) != NULL)
    {
#ifdef OPERSPY_LOG
      operspy_log(client_p, "WHO", mask);
#endif
      do_who_on_channel(client_p, chptr_who, chptr_who->chname);
    }

    sendto_one(client_p, form_str(RPL_ENDOFWHO),
               me.name, client_p->name, mask);
    return;
  }

  /* /who nick */
  if ((target_p_who = find_person(client_p, mask)) != NULL)
  {
#ifdef OPERSPY_LOG
    /* "nick!user@host server\0" */
    char nuh[NICKLEN + 1 + USERLEN + 1 + HOSTLEN + 1 + HOSTLEN + 1];

    ircsprintf(nuh, "%s!%s@%s %s", target_p_who->name,
               target_p_who->username, target_p_who->host,
               target_p_who->servptr->name);
    operspy_log(client_p, "WHO", nuh);
#endif

    if (target_p_who->channel.head != NULL)
    {
      chptr_who =
        ((struct Membership *)target_p_who->channel.head->data)->chptr;

      do_who(client_p, target_p_who, chptr_who->chname,
             get_member_status(target_p_who->channel.head->data, NO));
    }
    else
    {
      do_who(client_p, target_p_who, NULL, "");
    }

    sendto_one(client_p, form_str(RPL_ENDOFWHO),
               me.name, client_p->name, mask);
    return;
  }

#ifdef OPERSPY_LOG
  operspy_log(client_p, "WHO", parv[2]);
#endif

  /* /who 0 */
  if ((*(mask + 1) == '\0') && (*mask == '0'))
    who_global(client_p, NULL, server_oper);
  else
    who_global(client_p, mask, server_oper);

  /* nothing else? end of /who. */
  sendto_one(client_p, form_str(RPL_ENDOFWHO),
             me.name, client_p->name, mask);
}

static void
operspy_whois(struct Client *client_p, int parc, char *parv[])
{
  const dlink_node *lp;
  struct Channel *chptr_whois = NULL;
  struct Client *a2client_p;
  struct Client *target_p = NULL;
  char buf[IRCD_BUFSIZE];
#ifdef OPERSPY_LOG
  /* "nick!user@host server\0" */
  char nuh[NICKLEN + 1 + USERLEN + 1 + HOSTLEN + 1 + HOSTLEN + 1];
#endif
  char *t = NULL;
  int mlen, tlen;
  int cur_len = 0;
  int reply_to_send = NO;

  if (strchr(parv[2], '?') || strchr(parv[2], '*'))
  {
    sendto_one(client_p, ":%s NOTICE %s :Do not use wildcards with this.",
               me.name, client_p->name);
    return;
  }

  if ((target_p = find_person(client_p, parv[2])) == NULL)
  {
    sendto_one(client_p, form_str(ERR_NOSUCHNICK),
               me.name, client_p->name, parv[2]);
    return;
  }

#ifdef OPERSPY_LOG
  ircsprintf(nuh, "%s!%s@%s %s",
             target_p->name, target_p->username, target_p->host,
             target_p->servptr->name);
  operspy_log(client_p, "WHOIS", nuh);
#endif

  a2client_p = target_p->servptr;

  sendto_one(client_p, form_str(RPL_WHOISUSER), me.name,
             client_p->name, target_p->name, target_p->username,
             target_p->host, target_p->info);
  mlen = ircsprintf(buf, form_str(RPL_WHOISCHANNELS), me.name,
                    client_p->name, target_p->name, "");
  cur_len = mlen;
  t = buf + mlen;

  DLINK_FOREACH(lp, target_p->channel.head)
  {
    chptr_whois = ((struct Membership *)lp->data)->chptr;

    if ((cur_len + strlen(chptr_whois->chname) + 2) > (IRCD_BUFSIZE - 4))
    {
      sendto_one(client_p, "%s", buf);
      cur_len = mlen;
      t = buf + mlen;
    }

    tlen = ircsprintf(t, "%s%s%s ",
                     ShowChannel(client_p, chptr_whois) ? "" : "%",
                     get_member_status((struct Membership *)lp->data, YES),
                     chptr_whois->chname);
    t += tlen;
    cur_len += tlen;
    reply_to_send = YES;
  }

  if (reply_to_send == YES)
    sendto_one(client_p, "%s", buf);

  sendto_one(client_p, form_str(RPL_WHOISSERVER), me.name,
             client_p->name, target_p->name, a2client_p->name,
             a2client_p->info);

  if (IsOper(target_p))
    sendto_one(client_p, form_str(IsAdmin(target_p) ? RPL_WHOISADMIN :
               RPL_WHOISOPERATOR), me.name, client_p->name, target_p->name);

  if (MyConnect(target_p))
    sendto_one(client_p, form_str(RPL_WHOISIDLE), me.name,
               client_p->name, target_p->name, CurrentTime - target_p->localClient->last,
               target_p->firsttime);
  sendto_one(client_p, form_str(RPL_ENDOFWHOIS),
             me.name, client_p->name, parv[2]);
}

/* extensions for OPERSPY WHO */
static void
do_who(struct Client *source_p, struct Client *target_p,
       char *chname, const char *op_flags)
{
  char status[8];

  ircsprintf(status, "%c%s%s", target_p->away ? 'G' : 'H',
             IsOper(target_p) ? "*" : "", op_flags);
  sendto_one(source_p, form_str(RPL_WHOREPLY), me.name, source_p->name,
             (chname) ? (chname) : "*",
             target_p->username,
             target_p->host,  target_p->servptr->name, target_p->name,
             status, target_p->hopcount, target_p->info);
}

static void
who_global(struct Client *source_p, char *mask, int server_oper)
{
  struct Client *target_p;
  dlink_node *lp;
  int maxmatches = 500;
                        
  /* list all matching visible clients */
  DLINK_FOREACH(lp, global_client_list.head)
  {
    target_p = lp->data;

    if (!IsClient(target_p))
      continue;

    if (server_oper && !IsOper(target_p))
      continue;

    if (!mask ||
        match(mask, target_p->name) || match(mask, target_p->username) ||
        match(mask, target_p->host) || match(mask, target_p->servptr->name) ||
        match(mask, target_p->info) ||
        (MyClient(target_p) && match(mask, target_p->sockhost)))
    {
      if (dlink_list_length(&target_p->channel))
      {
        struct Channel *chptr;
        static char fl[5];

        chptr = ((struct Membership *)(target_p->channel.head->data))->chptr;
        snprintf(fl, sizeof(fl), "%s",
                 get_member_status((struct Membership *)(target_p->channel.head->data), NO));

        do_who(source_p, target_p, chptr->chname, fl);
      }
      else
        do_who(source_p, target_p, NULL, "");

      if (maxmatches > 0)
      {
        if (--maxmatches == 0)
          return;
      }
    }
  }
}

static void
do_who_on_channel(struct Client *source_p, struct Channel *chptr,
                  char *chname)
{
  dlink_node *ptr;
  struct Membership *ms;

  DLINK_FOREACH(ptr, chptr->members.head)
  {
    ms = ptr->data;
    do_who(source_p, ms->client_p, chname, get_member_status(ms, NO));
  }
}

#ifdef OPERSPY_LOG
static void
operspy_log(struct Client *source_p, const char *command, const char *target)
{
  struct ConfItem *conf = NULL;
#ifdef OPERSPY_LOGFILE
  size_t nbytes = 0;
  FBFILE *operspy_fb;
  dlink_node *cnode;
  const char *opername = source_p->name;
  char linebuf[IRCD_BUFSIZE], logfile[IRCD_BUFSIZE];
#endif

  assert(source_p != NULL);

#ifdef OPERSPY_LOGFILE
  if (IsOper(source_p) && MyClient(source_p))
  {
    DLINK_FOREACH(cnode, source_p->localClient->confs.head)
    {
      conf = cnode->data;

      if (conf->type == OPER_TYPE)
        opername = conf->name;
    }
  }
  else if (!MyClient(source_p))
    opername = "remote";

  ircsprintf(logfile, "%s/operspy.%s.log", LOGPATH, opername);
  if ((operspy_fb = fbopen(logfile, "a")) == NULL)
    return;

  nbytes = ircsprintf(linebuf, "[%s] OPERSPY %s %s %s\n",
                      smalldate(CurrentTime),
                      get_oper_name(source_p),
                      command, target);
  fbputs(linebuf, operspy_fb, nbytes);
  fbclose(operspy_fb);
#endif

#ifdef OPERSPY_NOTICE
  sendto_realops_flags(UMODE_SPY, L_ALL, "OPERSPY %s %s %s",
                       get_oper_name(source_p), command, target);
#endif

  if (MyClient(source_p))
    sendto_match_servs(source_p, "*", CAP_ENCAP, "ENCAP * OPERSPY %s :%s",
                       command, target);
}
#endif /* OPERSPY_LOG */
Revision:	30
Committed:	Sun Oct 2 20:03:27 2005 UTC (18 years, 6 months ago) by adx
Content type:	text/x-csrc
File size:	17484 byte(s)
Log Message:	- imported sources - can be moved later according to the directory/branching scheme, but we need the svn up
#	Content
1	/************************************************************************
2	* IRC - Internet Relay Chat, contrib/m_operspy.c
3	* Copyright (C) 2002 William Bierman III and the Hybrid Development Team
4	*
5	* This program is free software; you can redistribute it and/or modify
6	* it under the terms of the GNU General Public License as published by
7	* the Free Software Foundation; either version 1, or (at your option)
8	* any later version.
9	*
10	* This program is distributed in the hope that it will be useful,
11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13	* GNU General Public License for more details.
14	*
15	* You should have received a copy of the GNU General Public License
16	* along with this program; if not, write to the Free Software
17	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18	*
19	* $Id: m_operspy.c,v 1.67 2005/10/01 14:29:47 michael Exp $
20	*/
21
22	/* PLEASE READ ME */
23	/*
24	* This module gives an extraordinary amount of power to the opers
25	* who have the access to use it. It allows for users' privacy to
26	* be pretty much obliterated. The Hybrid Team assumes absolutely
27	* no responsibility for this file's (mis)use.
28	*
29	* - billy-jon
30	*/
31
32	#include "stdinc.h"
33	#include "tools.h"
34	#include "irc_string.h"
35	#include "handlers.h"
36	#include "channel.h"
37	#include "channel_mode.h"
38	#include "client.h"
39	#include "common.h" /* FALSE bleah */
40	#include "ircd.h"
41	#include "sprintf_irc.h"
42	#include "numeric.h"
43	#include "fdlist.h"
44	#include "s_bsd.h"
45	#include "s_conf.h"
46	#include "s_log.h"
47	#include "s_serv.h"
48	#include "s_misc.h"
49	#include "send.h"
50	#include "msg.h"
51	#include "parse.h"
52	#include "modules.h"
53	#include "hash.h"
54
55	/* enable logging of OPERSPY functions */
56	#define OPERSPY_LOG
57
58	/* enable this to log all local/remote operspy usage to a logfile */
59	#define OPERSPY_LOGFILE
60
61	/* enable this to send incoming operspy usage to connected +y (UMODE_SPY) opers */
62	#define OPERSPY_NOTICE
63
64	/* enable OPERSPY version of LIST */
65	#define OPERSPY_LIST
66
67	/* enable OPERSPY version of MODE */
68	#define OPERSPY_MODE
69
70	/* enable OPERSPY version of NAMES */
71	#define OPERSPY_NAMES
72
73	/* enable OPERSPY version of WHO */
74	#define OPERSPY_WHO
75
76	/* enable OPERSPY version of WHOIS */
77	#define OPERSPY_WHOIS
78
79	/* enable OPERSPY version of TOPIC */
80	#define OPERSPY_TOPIC
81
82	#define IsOperspy(x) (IsOper(x) && MyClient(x) && IsAdmin(x))
83
84	/* The commands we will add */
85	static void ms_operspy(struct Client , struct Client , int, char *[]);
86	static void mo_operspy(struct Client , struct Client , int, char *[]);
87
88	/* extensions for OPERSPY WHO */
89	static void do_who(struct Client , struct Client , char , const char );
90	static void who_global(struct Client , char , int);
91	static void do_who_on_channel(struct Client , struct Channel , char *);
92
93	static void operspy_list(struct Client , int, char []);
94	static void operspy_mode(struct Client , int, char []);
95	static void operspy_names(struct Client , int, char []);
96	static void operspy_topic(struct Client , int, char []);
97	static void operspy_who(struct Client , int, char []);
98	static void operspy_whois(struct Client , int, char []);
99
100
101	struct Message operspy_msgtab = {
102	"OPERSPY", 0, 0, 3, 4, MFLG_SLOW, 0,
103	{m_ignore, m_not_oper, ms_operspy, ms_operspy, mo_operspy, m_ignore}
104	};
105
106	static const struct operspy_s {
107	const char *const cmd;
108	void (const func_p)(struct Client , int, char *[]);
109	} operspy_table[] = {
110	#ifdef OPERSPY_LIST
111	{ "LIST", operspy_list },
112	#endif
113	#ifdef OPERSPY_MODE
114	{ "MODE", operspy_mode },
115	#endif
116	#ifdef OPERSPY_NAMES
117	{ "NAMES", operspy_names },
118	#endif
119	#ifdef OPERSPY_TOPIC
120	{ "TOPIC", operspy_topic },
121	#endif
122	#ifdef OPERSPY_WHO
123	{ "WHO", operspy_who },
124	#endif
125	#ifdef OPERSPY_WHOIS
126	{ "WHOIS", operspy_whois },
127	#endif
128	{ NULL, NULL }
129	};
130
131	#ifndef STATIC_MODULES
132	void
133	_modinit(void)
134	{
135	mod_add_cmd(&operspy_msgtab);
136	}
137
138	void
139	_moddeinit(void)
140	{
141	mod_del_cmd(&operspy_msgtab);
142	}
143	const char *_version = "$Revision: 1.67 $";
144	#endif
145
146	#ifdef OPERSPY_LOG
147	static void operspy_log(struct Client , const char , const char *);
148	#endif
149
150	static void
151	ms_operspy(struct Client client_p, struct Client source_p,
152	int parc, char *parv[])
153	{
154	#ifdef OPERSPY_LOG
155	operspy_log(source_p, parv[1], parv[2]);
156	#endif
157	}
158
159	/* mo_operspy()
160	* parv[1] = operspy command
161	* parv[2] = command parameter
162	*/
163	static void
164	mo_operspy(struct Client client_p, struct Client source_p,
165	int parc, char *parv[])
166	{
167	char cmdbuf[IRCD_BUFSIZE] = "<NONE>"; /* in case everything is undef'd */
168	size_t bcnt = 0;
169	const struct operspy_s *optr = NULL;
170
171	if (!IsOperspy(client_p))
172	{
173	sendto_one(client_p, form_str(ERR_NOPRIVILEGES),
174	me.name, client_p->name);
175	return;
176	}
177
178	assert(client_p == source_p);
179
180	for (optr = operspy_table; optr->cmd; ++optr)
181	{
182	if (!irccmp(optr->cmd, parv[1]))
183	{
184	(*optr->func_p)(client_p, parc, parv);
185	return;
186	}
187	}
188
189	for (optr = operspy_table; optr->cmd; ++optr)
190	{
191	/* strcat is slow and sucks /
192	bcnt += strlcpy(cmdbuf+bcnt, optr->cmd, sizeof(cmdbuf)-bcnt);
193	if ((optr + 1)->cmd != NULL && bcnt < (sizeof(cmdbuf)-2))
194	{
195	cmdbuf[bcnt++] = ',';
196	cmdbuf[bcnt++] = ' ';
197	}
198	}
199
200	sendto_one(client_p, ":%s NOTICE %s :%s is not a valid option. Choose from %s",
201	me.name, client_p->name, parv[1], cmdbuf);
202	}
203
204	static void
205	operspy_list(struct Client client_p, int parc, char parv[])
206	{
207	const dlink_node *ptr = NULL;
208	#ifdef OPERSPY_LOG
209	operspy_log(client_p, "LIST", parv[2]);
210	#endif
211
212	if (*parv[2] == '\0')
213	return;
214
215	sendto_one(client_p, form_str(RPL_LISTSTART),
216	me.name, client_p->name);
217
218	DLINK_FOREACH(ptr, global_channel_list.head)
219	{
220	const struct Channel *chptr_list = ptr->data;
221
222	if (match_chan(parv[2], chptr_list->chname))
223	{
224	sendto_one(client_p, form_str(RPL_LIST), me.name, client_p->name,
225	chptr_list->chname, dlink_list_length(&chptr_list->members),
226	chptr_list->topic == NULL ? "" : chptr_list->topic);
227	}
228	}
229
230	sendto_one(client_p, form_str(RPL_LISTEND),
231	me.name, client_p->name);
232	}
233
234	static void
235	operspy_mode(struct Client client_p, int parc, char parv[])
236	{
237	/* needed to preserve actual client status */
238	int c_status = 0;
239	char modebuf[MODEBUFLEN];
240	char parabuf[MODEBUFLEN];
241	struct Channel *chptr_mode = NULL;
242
243	if ((chptr_mode = hash_find_channel(parv[2])) == NULL)
244	{
245	/*
246	* according to m_mode.c, the channel could exist on the uplink still,
247	* but I don't see how. Even if it does, we won't be able to spy without
248	* info.
249	*/
250	sendto_one(client_p, form_str(ERR_NOSUCHCHANNEL),
251	me.name, client_p->name, parv[2]);
252	return;
253	}
254
255	#ifdef OPERSPY_LOG
256	operspy_log(client_p, "MODE", parv[2]);
257	#endif
258
259	/*
260	* XXX - this is a dirty nasty kludge to trick channel_modes()
261	* into giving us the key
262	*/
263	c_status = client_p->status;
264	client_p->status = STAT_SERVER;
265
266	channel_modes(chptr_mode, client_p, modebuf, parabuf);
267	client_p->status = c_status;
268
269	sendto_one(client_p, form_str(RPL_CHANNELMODEIS),
270	me.name, client_p->name, parv[2], modebuf, parabuf);
271	sendto_one(client_p, form_str(RPL_CREATIONTIME),
272	me.name, client_p->name, parv[2], chptr_mode->channelts);
273	}
274
275	static void
276	operspy_names(struct Client client_p, int parc, char parv[])
277	{
278	/* as with mode, must preserve channel modes */
279	struct Channel *chptr_names = NULL;
280
281	if ((chptr_names = hash_find_channel(parv[2])) == NULL)
282	{
283	sendto_one(client_p, form_str(ERR_NOSUCHCHANNEL),
284	me.name, client_p->name, parv[2]);
285	return;
286	}
287
288	#ifdef OPERSPY_LOG
289	operspy_log(client_p, "NAMES", parv[2]);
290	#endif
291
292	/* the way to go with this, rather than temporarily setting -sp,
293	* is to temporarily add our client to the member list. then
294	* we can also list +i users. an unfortunate side-effect of this
295	* is that your nickname shows up in the list. for now, there is
296	* no easy way around it.
297	*/
298	add_user_to_channel(chptr_names, client_p, CHFL_CHANOP, NO);
299	channel_member_names(client_p, chptr_names, 1);
300	remove_user_from_channel(find_channel_link(client_p, chptr_names));
301	}
302
303	static void
304	operspy_topic(struct Client client_p, int parc, char parv[])
305	{
306	const struct Channel *chptr_topic = NULL;
307
308	if ((chptr_topic = hash_find_channel(parv[2])) == NULL)
309	{
310	sendto_one(client_p, form_str(ERR_NOSUCHCHANNEL),
311	me.name, client_p->name, parv[2]);
312	return;
313	}
314
315	#ifdef OPERSPY_LOG
316	operspy_log(client_p, "TOPIC", parv[2]);
317	#endif
318
319	if (chptr_topic->topic == NULL)
320	sendto_one(client_p, form_str(RPL_NOTOPIC),
321	me.name, client_p->name, parv[2]);
322	else
323	{
324	sendto_one(client_p, form_str(RPL_TOPIC), me.name, client_p->name,
325	chptr_topic->chname, chptr_topic->topic);
326	sendto_one(client_p, form_str(RPL_TOPICWHOTIME), me.name,
327	client_p->name, chptr_topic->chname, chptr_topic->topic_info,
328	chptr_topic->topic_time);
329	}
330	}
331
332	static void
333	operspy_who(struct Client client_p, int parc, char parv[])
334	{
335	char *mask = parc > 2 ? parv[2] : NULL;
336	int server_oper = parc > 3 ? (*parv[3] == 'o') : 0;
337	struct Channel *chptr_who = NULL;
338	struct Client *target_p_who = NULL;
339
340	if (mask != NULL)
341	{
342	collapse(mask);
343
344	if (*mask == '\0')
345	{
346	sendto_one(client_p, form_str(RPL_ENDOFWHO),
347	me.name, client_p->name, "*");
348	return;
349	}
350	}
351	else
352	{
353	#ifdef OPERSPY_LOG
354	operspy_log(client_p, "WHO", "*");
355	#endif
356	who_global(client_p, NULL, server_oper);
357	sendto_one(client_p, form_str(RPL_ENDOFWHO),
358	me.name, client_p->name, "*");
359	return;
360	}
361
362	/* /who #channel */
363	if (IsChanPrefix(*mask))
364	{
365	if ((chptr_who = hash_find_channel(mask)) != NULL)
366	{
367	#ifdef OPERSPY_LOG
368	operspy_log(client_p, "WHO", mask);
369	#endif
370	do_who_on_channel(client_p, chptr_who, chptr_who->chname);
371	}
372
373	sendto_one(client_p, form_str(RPL_ENDOFWHO),
374	me.name, client_p->name, mask);
375	return;
376	}
377
378	/* /who nick */
379	if ((target_p_who = find_person(client_p, mask)) != NULL)
380	{
381	#ifdef OPERSPY_LOG
382	/* "nick!user@host server\0" */
383	char nuh[NICKLEN + 1 + USERLEN + 1 + HOSTLEN + 1 + HOSTLEN + 1];
384
385	ircsprintf(nuh, "%s!%s@%s %s", target_p_who->name,
386	target_p_who->username, target_p_who->host,
387	target_p_who->servptr->name);
388	operspy_log(client_p, "WHO", nuh);
389	#endif
390
391	if (target_p_who->channel.head != NULL)
392	{
393	chptr_who =
394	((struct Membership *)target_p_who->channel.head->data)->chptr;
395
396	do_who(client_p, target_p_who, chptr_who->chname,
397	get_member_status(target_p_who->channel.head->data, NO));
398	}
399	else
400	{
401	do_who(client_p, target_p_who, NULL, "");
402	}
403
404	sendto_one(client_p, form_str(RPL_ENDOFWHO),
405	me.name, client_p->name, mask);
406	return;
407	}
408
409	#ifdef OPERSPY_LOG
410	operspy_log(client_p, "WHO", parv[2]);
411	#endif
412
413	/* /who 0 */
414	if (((mask + 1) == '\0') && (mask == '0'))
415	who_global(client_p, NULL, server_oper);
416	else
417	who_global(client_p, mask, server_oper);
418
419	/* nothing else? end of /who. */
420	sendto_one(client_p, form_str(RPL_ENDOFWHO),
421	me.name, client_p->name, mask);
422	}
423
424	static void
425	operspy_whois(struct Client client_p, int parc, char parv[])
426	{
427	const dlink_node *lp;
428	struct Channel *chptr_whois = NULL;
429	struct Client *a2client_p;
430	struct Client *target_p = NULL;
431	char buf[IRCD_BUFSIZE];
432	#ifdef OPERSPY_LOG
433	/* "nick!user@host server\0" */
434	char nuh[NICKLEN + 1 + USERLEN + 1 + HOSTLEN + 1 + HOSTLEN + 1];
435	#endif
436	char *t = NULL;
437	int mlen, tlen;
438	int cur_len = 0;
439	int reply_to_send = NO;
440
441	if (strchr(parv[2], '?') \|\| strchr(parv[2], '*'))
442	{
443	sendto_one(client_p, ":%s NOTICE %s :Do not use wildcards with this.",
444	me.name, client_p->name);
445	return;
446	}
447
448	if ((target_p = find_person(client_p, parv[2])) == NULL)
449	{
450	sendto_one(client_p, form_str(ERR_NOSUCHNICK),
451	me.name, client_p->name, parv[2]);
452	return;
453	}
454
455	#ifdef OPERSPY_LOG
456	ircsprintf(nuh, "%s!%s@%s %s",
457	target_p->name, target_p->username, target_p->host,
458	target_p->servptr->name);
459	operspy_log(client_p, "WHOIS", nuh);
460	#endif
461
462	a2client_p = target_p->servptr;
463
464	sendto_one(client_p, form_str(RPL_WHOISUSER), me.name,
465	client_p->name, target_p->name, target_p->username,
466	target_p->host, target_p->info);
467	mlen = ircsprintf(buf, form_str(RPL_WHOISCHANNELS), me.name,
468	client_p->name, target_p->name, "");
469	cur_len = mlen;
470	t = buf + mlen;
471
472	DLINK_FOREACH(lp, target_p->channel.head)
473	{
474	chptr_whois = ((struct Membership *)lp->data)->chptr;
475
476	if ((cur_len + strlen(chptr_whois->chname) + 2) > (IRCD_BUFSIZE - 4))
477	{
478	sendto_one(client_p, "%s", buf);
479	cur_len = mlen;
480	t = buf + mlen;
481	}
482
483	tlen = ircsprintf(t, "%s%s%s ",
484	ShowChannel(client_p, chptr_whois) ? "" : "%",
485	get_member_status((struct Membership *)lp->data, YES),
486	chptr_whois->chname);
487	t += tlen;
488	cur_len += tlen;
489	reply_to_send = YES;
490	}
491
492	if (reply_to_send == YES)
493	sendto_one(client_p, "%s", buf);
494
495	sendto_one(client_p, form_str(RPL_WHOISSERVER), me.name,
496	client_p->name, target_p->name, a2client_p->name,
497	a2client_p->info);
498
499	if (IsOper(target_p))
500	sendto_one(client_p, form_str(IsAdmin(target_p) ? RPL_WHOISADMIN :
501	RPL_WHOISOPERATOR), me.name, client_p->name, target_p->name);
502
503	if (MyConnect(target_p))
504	sendto_one(client_p, form_str(RPL_WHOISIDLE), me.name,
505	client_p->name, target_p->name, CurrentTime - target_p->localClient->last,
506	target_p->firsttime);
507	sendto_one(client_p, form_str(RPL_ENDOFWHOIS),
508	me.name, client_p->name, parv[2]);
509	}
510
511	/* extensions for OPERSPY WHO */
512	static void
513	do_who(struct Client source_p, struct Client target_p,
514	char chname, const char op_flags)
515	{
516	char status[8];
517
518	ircsprintf(status, "%c%s%s", target_p->away ? 'G' : 'H',
519	IsOper(target_p) ? "*" : "", op_flags);
520	sendto_one(source_p, form_str(RPL_WHOREPLY), me.name, source_p->name,
521	(chname) ? (chname) : "*",
522	target_p->username,
523	target_p->host, target_p->servptr->name, target_p->name,
524	status, target_p->hopcount, target_p->info);
525	}
526
527	static void
528	who_global(struct Client source_p, char mask, int server_oper)
529	{
530	struct Client *target_p;
531	dlink_node *lp;
532	int maxmatches = 500;
533
534	/* list all matching visible clients */
535	DLINK_FOREACH(lp, global_client_list.head)
536	{
537	target_p = lp->data;
538
539	if (!IsClient(target_p))
540	continue;
541
542	if (server_oper && !IsOper(target_p))
543	continue;
544
545	if (!mask \|\|
546	match(mask, target_p->name) \|\| match(mask, target_p->username) \|\|
547	match(mask, target_p->host) \|\| match(mask, target_p->servptr->name) \|\|
548	match(mask, target_p->info) \|\|
549	(MyClient(target_p) && match(mask, target_p->sockhost)))
550	{
551	if (dlink_list_length(&target_p->channel))
552	{
553	struct Channel *chptr;
554	static char fl[5];
555
556	chptr = ((struct Membership *)(target_p->channel.head->data))->chptr;
557	snprintf(fl, sizeof(fl), "%s",
558	get_member_status((struct Membership *)(target_p->channel.head->data), NO));
559
560	do_who(source_p, target_p, chptr->chname, fl);
561	}
562	else
563	do_who(source_p, target_p, NULL, "");
564
565	if (maxmatches > 0)
566	{
567	if (--maxmatches == 0)
568	return;
569	}
570	}
571	}
572	}
573
574	static void
575	do_who_on_channel(struct Client source_p, struct Channel chptr,
576	char *chname)
577	{
578	dlink_node *ptr;
579	struct Membership *ms;
580
581	DLINK_FOREACH(ptr, chptr->members.head)
582	{
583	ms = ptr->data;
584	do_who(source_p, ms->client_p, chname, get_member_status(ms, NO));
585	}
586	}
587
588	#ifdef OPERSPY_LOG
589	static void
590	operspy_log(struct Client source_p, const char command, const char *target)
591	{
592	struct ConfItem *conf = NULL;
593	#ifdef OPERSPY_LOGFILE
594	size_t nbytes = 0;
595	FBFILE *operspy_fb;
596	dlink_node *cnode;
597	const char *opername = source_p->name;
598	char linebuf[IRCD_BUFSIZE], logfile[IRCD_BUFSIZE];
599	#endif
600
601	assert(source_p != NULL);
602
603	#ifdef OPERSPY_LOGFILE
604	if (IsOper(source_p) && MyClient(source_p))
605	{
606	DLINK_FOREACH(cnode, source_p->localClient->confs.head)
607	{
608	conf = cnode->data;
609
610	if (conf->type == OPER_TYPE)
611	opername = conf->name;
612	}
613	}
614	else if (!MyClient(source_p))
615	opername = "remote";
616
617	ircsprintf(logfile, "%s/operspy.%s.log", LOGPATH, opername);
618	if ((operspy_fb = fbopen(logfile, "a")) == NULL)
619	return;
620
621	nbytes = ircsprintf(linebuf, "[%s] OPERSPY %s %s %s\n",
622	smalldate(CurrentTime),
623	get_oper_name(source_p),
624	command, target);
625	fbputs(linebuf, operspy_fb, nbytes);
626	fbclose(operspy_fb);
627	#endif
628
629	#ifdef OPERSPY_NOTICE
630	sendto_realops_flags(UMODE_SPY, L_ALL, "OPERSPY %s %s %s",
631	get_oper_name(source_p), command, target);
632	#endif
633
634	if (MyClient(source_p))
635	sendto_match_servs(source_p, "", CAP_ENCAP, "ENCAP OPERSPY %s :%s",
636	command, target);
637	}
638	#endif /* OPERSPY_LOG */