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.
 *
 *   $Id$
 */

/***  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 "handlers.h"
#include "channel.h"
#include "channel_mode.h"
#include "client.h"
#include "common.h"     /* FALSE bleah */
#include "ircd.h"
#include "numeric.h"
#include "s_conf.h"
#include "s_serv.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 }
};

INIT_MODULE(m_operspy, "$Revision$")
{
  mod_add_cmd(&operspy_msgtab);
}

CLEANUP_MODULE
{
  mod_del_cmd(&operspy_msgtab);
}

#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)
  {
    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.
   */
  if (IsMember(client_p, chptr))
    channel_member_names(client_p, chptr_names, 1);
  else {
    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 (!irccmp(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 (has_wildcards(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)
{
#ifdef OPERSPY_LOGFILE
  size_t nbytes = 0;
  FBFILE *operspy_fb;
  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))
    opername = source_p->localClient->auth_oper;
  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:	496
Committed:	Wed Mar 1 18:57:10 2006 UTC (20 years, 5 months ago) by michael
Content type:	text/x-csrc
File size:	16927 byte(s)
Log Message:	- Fixed bug where "OPERSPY NAMES #channel" would add a client twice onto a channel's member list if it is already on that channel.
#	User	Rev	Content
1	adx	30	/************************************************************************
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	knight	31	* $Id$
20	adx	30	*/
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 "handlers.h"
34			#include "channel.h"
35			#include "channel_mode.h"
36			#include "client.h"
37			#include "common.h" /* FALSE bleah */
38			#include "ircd.h"
39			#include "numeric.h"
40			#include "s_conf.h"
41			#include "s_serv.h"
42			#include "send.h"
43			#include "msg.h"
44			#include "parse.h"
45			#include "modules.h"
46			#include "hash.h"
47
48			/* enable logging of OPERSPY functions */
49			#define OPERSPY_LOG
50
51			/* enable this to log all local/remote operspy usage to a logfile */
52			#define OPERSPY_LOGFILE
53
54			/* enable this to send incoming operspy usage to connected +y (UMODE_SPY) opers */
55			#define OPERSPY_NOTICE
56
57			/* enable OPERSPY version of LIST */
58			#define OPERSPY_LIST
59
60			/* enable OPERSPY version of MODE */
61			#define OPERSPY_MODE
62
63			/* enable OPERSPY version of NAMES */
64			#define OPERSPY_NAMES
65
66			/* enable OPERSPY version of WHO */
67			#define OPERSPY_WHO
68
69			/* enable OPERSPY version of WHOIS */
70			#define OPERSPY_WHOIS
71
72			/* enable OPERSPY version of TOPIC */
73			#define OPERSPY_TOPIC
74
75			#define IsOperspy(x) (IsOper(x) && MyClient(x) && IsAdmin(x))
76
77			/* The commands we will add */
78			static void ms_operspy(struct Client , struct Client , int, char *[]);
79			static void mo_operspy(struct Client , struct Client , int, char *[]);
80
81			/* extensions for OPERSPY WHO */
82			static void do_who(struct Client , struct Client , char , const char );
83			static void who_global(struct Client , char , int);
84			static void do_who_on_channel(struct Client , struct Channel , char *);
85
86			static void operspy_list(struct Client , int, char []);
87			static void operspy_mode(struct Client , int, char []);
88			static void operspy_names(struct Client , int, char []);
89			static void operspy_topic(struct Client , int, char []);
90			static void operspy_who(struct Client , int, char []);
91			static void operspy_whois(struct Client , int, char []);
92
93
94			struct Message operspy_msgtab = {
95			"OPERSPY", 0, 0, 3, 4, MFLG_SLOW, 0,
96	michael	496	{ m_ignore, m_not_oper, ms_operspy, ms_operspy, mo_operspy, m_ignore }
97	adx	30	};
98
99			static const struct operspy_s {
100			const char *const cmd;
101			void (const func_p)(struct Client , int, char *[]);
102			} operspy_table[] = {
103			#ifdef OPERSPY_LIST
104			{ "LIST", operspy_list },
105			#endif
106			#ifdef OPERSPY_MODE
107			{ "MODE", operspy_mode },
108			#endif
109			#ifdef OPERSPY_NAMES
110			{ "NAMES", operspy_names },
111			#endif
112			#ifdef OPERSPY_TOPIC
113			{ "TOPIC", operspy_topic },
114			#endif
115			#ifdef OPERSPY_WHO
116			{ "WHO", operspy_who },
117			#endif
118			#ifdef OPERSPY_WHOIS
119			{ "WHOIS", operspy_whois },
120			#endif
121			{ NULL, NULL }
122			};
123
124	adx	443	INIT_MODULE(m_operspy, "$Revision$")
125	adx	30	{
126			mod_add_cmd(&operspy_msgtab);
127			}
128
129	adx	443	CLEANUP_MODULE
130	adx	30	{
131			mod_del_cmd(&operspy_msgtab);
132			}
133
134			#ifdef OPERSPY_LOG
135			static void operspy_log(struct Client , const char , const char *);
136			#endif
137
138			static void
139			ms_operspy(struct Client client_p, struct Client source_p,
140			int parc, char *parv[])
141			{
142			#ifdef OPERSPY_LOG
143			operspy_log(source_p, parv[1], parv[2]);
144			#endif
145			}
146
147			/* mo_operspy()
148			* parv[1] = operspy command
149			* parv[2] = command parameter
150			*/
151			static void
152			mo_operspy(struct Client client_p, struct Client source_p,
153			int parc, char *parv[])
154			{
155			char cmdbuf[IRCD_BUFSIZE] = "<NONE>"; /* in case everything is undef'd */
156			size_t bcnt = 0;
157			const struct operspy_s *optr = NULL;
158
159			if (!IsOperspy(client_p))
160			{
161			sendto_one(client_p, form_str(ERR_NOPRIVILEGES),
162			me.name, client_p->name);
163			return;
164			}
165
166			assert(client_p == source_p);
167
168			for (optr = operspy_table; optr->cmd; ++optr)
169			{
170			if (!irccmp(optr->cmd, parv[1]))
171			{
172			(*optr->func_p)(client_p, parc, parv);
173			return;
174			}
175			}
176
177			for (optr = operspy_table; optr->cmd; ++optr)
178			{
179			/* strcat is slow and sucks /
180			bcnt += strlcpy(cmdbuf+bcnt, optr->cmd, sizeof(cmdbuf)-bcnt);
181			if ((optr + 1)->cmd != NULL && bcnt < (sizeof(cmdbuf)-2))
182			{
183			cmdbuf[bcnt++] = ',';
184			cmdbuf[bcnt++] = ' ';
185			}
186			}
187
188			sendto_one(client_p, ":%s NOTICE %s :%s is not a valid option. Choose from %s",
189			me.name, client_p->name, parv[1], cmdbuf);
190			}
191
192			static void
193			operspy_list(struct Client client_p, int parc, char parv[])
194			{
195			const dlink_node *ptr = NULL;
196			#ifdef OPERSPY_LOG
197			operspy_log(client_p, "LIST", parv[2]);
198			#endif
199
200			if (*parv[2] == '\0')
201			return;
202
203			sendto_one(client_p, form_str(RPL_LISTSTART),
204			me.name, client_p->name);
205
206			DLINK_FOREACH(ptr, global_channel_list.head)
207			{
208			const struct Channel *chptr_list = ptr->data;
209
210			if (match_chan(parv[2], chptr_list->chname))
211			{
212			sendto_one(client_p, form_str(RPL_LIST), me.name, client_p->name,
213			chptr_list->chname, dlink_list_length(&chptr_list->members),
214			chptr_list->topic == NULL ? "" : chptr_list->topic);
215			}
216			}
217
218			sendto_one(client_p, form_str(RPL_LISTEND),
219			me.name, client_p->name);
220			}
221
222			static void
223			operspy_mode(struct Client client_p, int parc, char parv[])
224			{
225			/* needed to preserve actual client status */
226			int c_status = 0;
227			char modebuf[MODEBUFLEN];
228			char parabuf[MODEBUFLEN];
229			struct Channel *chptr_mode = NULL;
230
231			if ((chptr_mode = hash_find_channel(parv[2])) == NULL)
232			{
233			sendto_one(client_p, form_str(ERR_NOSUCHCHANNEL),
234			me.name, client_p->name, parv[2]);
235			return;
236			}
237
238			#ifdef OPERSPY_LOG
239			operspy_log(client_p, "MODE", parv[2]);
240			#endif
241
242			/*
243			* XXX - this is a dirty nasty kludge to trick channel_modes()
244			* into giving us the key
245			*/
246			c_status = client_p->status;
247			client_p->status = STAT_SERVER;
248
249			channel_modes(chptr_mode, client_p, modebuf, parabuf);
250			client_p->status = c_status;
251
252	michael	496	sendto_one(client_p, form_str(RPL_CHANNELMODEIS), me.name,
253			client_p->name, parv[2], modebuf, parabuf);
254			sendto_one(client_p, form_str(RPL_CREATIONTIME), me.name,
255			client_p->name, parv[2], chptr_mode->channelts);
256	adx	30	}
257
258			static void
259			operspy_names(struct Client client_p, int parc, char parv[])
260			{
261			/* as with mode, must preserve channel modes */
262			struct Channel *chptr_names = NULL;
263
264			if ((chptr_names = hash_find_channel(parv[2])) == NULL)
265			{
266			sendto_one(client_p, form_str(ERR_NOSUCHCHANNEL),
267			me.name, client_p->name, parv[2]);
268			return;
269			}
270
271			#ifdef OPERSPY_LOG
272			operspy_log(client_p, "NAMES", parv[2]);
273			#endif
274
275	michael	496	/*
276			* the way to go with this, rather than temporarily setting -sp,
277	adx	30	* is to temporarily add our client to the member list. then
278			* we can also list +i users. an unfortunate side-effect of this
279			* is that your nickname shows up in the list. for now, there is
280			* no easy way around it.
281	michael	496	*/
282			if (IsMember(client_p, chptr))
283			channel_member_names(client_p, chptr_names, 1);
284			else {
285			add_user_to_channel(chptr_names, client_p, CHFL_CHANOP, NO);
286			channel_member_names(client_p, chptr_names, 1);
287			remove_user_from_channel(find_channel_link(client_p, chptr_names));
288			}
289	adx	30	}
290
291			static void
292			operspy_topic(struct Client client_p, int parc, char parv[])
293			{
294			const struct Channel *chptr_topic = NULL;
295
296			if ((chptr_topic = hash_find_channel(parv[2])) == NULL)
297			{
298			sendto_one(client_p, form_str(ERR_NOSUCHCHANNEL),
299			me.name, client_p->name, parv[2]);
300			return;
301			}
302
303			#ifdef OPERSPY_LOG
304			operspy_log(client_p, "TOPIC", parv[2]);
305			#endif
306
307			if (chptr_topic->topic == NULL)
308			sendto_one(client_p, form_str(RPL_NOTOPIC),
309			me.name, client_p->name, parv[2]);
310			else
311			{
312			sendto_one(client_p, form_str(RPL_TOPIC), me.name, client_p->name,
313			chptr_topic->chname, chptr_topic->topic);
314			sendto_one(client_p, form_str(RPL_TOPICWHOTIME), me.name,
315			client_p->name, chptr_topic->chname, chptr_topic->topic_info,
316			chptr_topic->topic_time);
317			}
318			}
319
320			static void
321			operspy_who(struct Client client_p, int parc, char parv[])
322			{
323			char *mask = parc > 2 ? parv[2] : NULL;
324			int server_oper = parc > 3 ? (*parv[3] == 'o') : 0;
325			struct Channel *chptr_who = NULL;
326			struct Client *target_p_who = NULL;
327
328			if (mask != NULL)
329			{
330			collapse(mask);
331
332			if (*mask == '\0')
333			{
334			sendto_one(client_p, form_str(RPL_ENDOFWHO),
335			me.name, client_p->name, "*");
336			return;
337			}
338			}
339			else
340			{
341			#ifdef OPERSPY_LOG
342			operspy_log(client_p, "WHO", "*");
343			#endif
344			who_global(client_p, NULL, server_oper);
345			sendto_one(client_p, form_str(RPL_ENDOFWHO),
346			me.name, client_p->name, "*");
347			return;
348			}
349
350			/* /who #channel */
351			if (IsChanPrefix(*mask))
352			{
353			if ((chptr_who = hash_find_channel(mask)) != NULL)
354			{
355			#ifdef OPERSPY_LOG
356			operspy_log(client_p, "WHO", mask);
357			#endif
358			do_who_on_channel(client_p, chptr_who, chptr_who->chname);
359			}
360
361			sendto_one(client_p, form_str(RPL_ENDOFWHO),
362			me.name, client_p->name, mask);
363			return;
364			}
365
366			/* /who nick */
367			if ((target_p_who = find_person(client_p, mask)) != NULL)
368			{
369			#ifdef OPERSPY_LOG
370			/* "nick!user@host server\0" */
371			char nuh[NICKLEN + 1 + USERLEN + 1 + HOSTLEN + 1 + HOSTLEN + 1];
372
373			ircsprintf(nuh, "%s!%s@%s %s", target_p_who->name,
374			target_p_who->username, target_p_who->host,
375			target_p_who->servptr->name);
376			operspy_log(client_p, "WHO", nuh);
377			#endif
378
379			if (target_p_who->channel.head != NULL)
380			{
381			chptr_who =
382			((struct Membership *)target_p_who->channel.head->data)->chptr;
383
384			do_who(client_p, target_p_who, chptr_who->chname,
385			get_member_status(target_p_who->channel.head->data, NO));
386			}
387			else
388			{
389			do_who(client_p, target_p_who, NULL, "");
390			}
391
392			sendto_one(client_p, form_str(RPL_ENDOFWHO),
393			me.name, client_p->name, mask);
394			return;
395			}
396
397			#ifdef OPERSPY_LOG
398			operspy_log(client_p, "WHO", parv[2]);
399			#endif
400
401			/* /who 0 */
402	michael	496	if (!irccmp(mask, "0"))
403	adx	30	who_global(client_p, NULL, server_oper);
404			else
405			who_global(client_p, mask, server_oper);
406
407			/* nothing else? end of /who. */
408			sendto_one(client_p, form_str(RPL_ENDOFWHO),
409			me.name, client_p->name, mask);
410			}
411
412			static void
413			operspy_whois(struct Client client_p, int parc, char parv[])
414			{
415			const dlink_node *lp;
416			struct Channel *chptr_whois = NULL;
417			struct Client *a2client_p;
418			struct Client *target_p = NULL;
419			char buf[IRCD_BUFSIZE];
420			#ifdef OPERSPY_LOG
421			/* "nick!user@host server\0" */
422			char nuh[NICKLEN + 1 + USERLEN + 1 + HOSTLEN + 1 + HOSTLEN + 1];
423			#endif
424			char *t = NULL;
425			int mlen, tlen;
426			int cur_len = 0;
427			int reply_to_send = NO;
428
429	michael	290	if (has_wildcards(parv[2]))
430	adx	30	{
431			sendto_one(client_p, ":%s NOTICE %s :Do not use wildcards with this.",
432			me.name, client_p->name);
433			return;
434			}
435
436			if ((target_p = find_person(client_p, parv[2])) == NULL)
437			{
438			sendto_one(client_p, form_str(ERR_NOSUCHNICK),
439			me.name, client_p->name, parv[2]);
440			return;
441			}
442
443			#ifdef OPERSPY_LOG
444			ircsprintf(nuh, "%s!%s@%s %s",
445			target_p->name, target_p->username, target_p->host,
446			target_p->servptr->name);
447			operspy_log(client_p, "WHOIS", nuh);
448			#endif
449
450			a2client_p = target_p->servptr;
451
452			sendto_one(client_p, form_str(RPL_WHOISUSER), me.name,
453			client_p->name, target_p->name, target_p->username,
454			target_p->host, target_p->info);
455			mlen = ircsprintf(buf, form_str(RPL_WHOISCHANNELS), me.name,
456			client_p->name, target_p->name, "");
457			cur_len = mlen;
458			t = buf + mlen;
459
460			DLINK_FOREACH(lp, target_p->channel.head)
461			{
462			chptr_whois = ((struct Membership *)lp->data)->chptr;
463
464			if ((cur_len + strlen(chptr_whois->chname) + 2) > (IRCD_BUFSIZE - 4))
465			{
466			sendto_one(client_p, "%s", buf);
467			cur_len = mlen;
468			t = buf + mlen;
469			}
470
471			tlen = ircsprintf(t, "%s%s%s ",
472			ShowChannel(client_p, chptr_whois) ? "" : "%",
473			get_member_status((struct Membership *)lp->data, YES),
474			chptr_whois->chname);
475			t += tlen;
476			cur_len += tlen;
477			reply_to_send = YES;
478			}
479
480			if (reply_to_send == YES)
481			sendto_one(client_p, "%s", buf);
482
483			sendto_one(client_p, form_str(RPL_WHOISSERVER), me.name,
484			client_p->name, target_p->name, a2client_p->name,
485			a2client_p->info);
486
487			if (IsOper(target_p))
488			sendto_one(client_p, form_str(IsAdmin(target_p) ? RPL_WHOISADMIN :
489			RPL_WHOISOPERATOR), me.name, client_p->name, target_p->name);
490
491			if (MyConnect(target_p))
492			sendto_one(client_p, form_str(RPL_WHOISIDLE), me.name,
493			client_p->name, target_p->name, CurrentTime - target_p->localClient->last,
494			target_p->firsttime);
495			sendto_one(client_p, form_str(RPL_ENDOFWHOIS),
496			me.name, client_p->name, parv[2]);
497			}
498
499			/* extensions for OPERSPY WHO */
500			static void
501			do_who(struct Client source_p, struct Client target_p,
502			char chname, const char op_flags)
503			{
504			char status[8];
505
506			ircsprintf(status, "%c%s%s", target_p->away ? 'G' : 'H',
507			IsOper(target_p) ? "*" : "", op_flags);
508			sendto_one(source_p, form_str(RPL_WHOREPLY), me.name, source_p->name,
509			(chname) ? (chname) : "*",
510			target_p->username,
511			target_p->host, target_p->servptr->name, target_p->name,
512			status, target_p->hopcount, target_p->info);
513			}
514
515			static void
516			who_global(struct Client source_p, char mask, int server_oper)
517			{
518			struct Client *target_p;
519			dlink_node *lp;
520			int maxmatches = 500;
521
522			/* list all matching visible clients */
523			DLINK_FOREACH(lp, global_client_list.head)
524			{
525			target_p = lp->data;
526
527			if (!IsClient(target_p))
528			continue;
529
530			if (server_oper && !IsOper(target_p))
531			continue;
532
533			if (!mask \|\|
534			match(mask, target_p->name) \|\| match(mask, target_p->username) \|\|
535			match(mask, target_p->host) \|\| match(mask, target_p->servptr->name) \|\|
536			match(mask, target_p->info) \|\|
537			(MyClient(target_p) && match(mask, target_p->sockhost)))
538			{
539			if (dlink_list_length(&target_p->channel))
540			{
541			struct Channel *chptr;
542			static char fl[5];
543
544			chptr = ((struct Membership *)(target_p->channel.head->data))->chptr;
545			snprintf(fl, sizeof(fl), "%s",
546			get_member_status((struct Membership *)(target_p->channel.head->data), NO));
547
548			do_who(source_p, target_p, chptr->chname, fl);
549			}
550			else
551			do_who(source_p, target_p, NULL, "");
552
553			if (maxmatches > 0)
554			{
555			if (--maxmatches == 0)
556			return;
557			}
558			}
559			}
560			}
561
562			static void
563			do_who_on_channel(struct Client source_p, struct Channel chptr,
564			char *chname)
565			{
566			dlink_node *ptr;
567			struct Membership *ms;
568
569			DLINK_FOREACH(ptr, chptr->members.head)
570			{
571			ms = ptr->data;
572			do_who(source_p, ms->client_p, chname, get_member_status(ms, NO));
573			}
574			}
575
576			#ifdef OPERSPY_LOG
577			static void
578			operspy_log(struct Client source_p, const char command, const char *target)
579			{
580			#ifdef OPERSPY_LOGFILE
581			size_t nbytes = 0;
582			FBFILE *operspy_fb;
583			const char *opername = source_p->name;
584			char linebuf[IRCD_BUFSIZE], logfile[IRCD_BUFSIZE];
585			#endif
586
587			assert(source_p != NULL);
588
589			#ifdef OPERSPY_LOGFILE
590			if (IsOper(source_p) && MyClient(source_p))
591	db	161	opername = source_p->localClient->auth_oper;
592	adx	30	else if (!MyClient(source_p))
593			opername = "remote";
594
595			ircsprintf(logfile, "%s/operspy.%s.log", LOGPATH, opername);
596			if ((operspy_fb = fbopen(logfile, "a")) == NULL)
597			return;
598
599			nbytes = ircsprintf(linebuf, "[%s] OPERSPY %s %s %s\n",
600			smalldate(CurrentTime),
601			get_oper_name(source_p),
602			command, target);
603			fbputs(linebuf, operspy_fb, nbytes);
604			fbclose(operspy_fb);
605			#endif
606
607			#ifdef OPERSPY_NOTICE
608			sendto_realops_flags(UMODE_SPY, L_ALL, "OPERSPY %s %s %s",
609			get_oper_name(source_p), command, target);
610			#endif
611
612			if (MyClient(source_p))
613			sendto_match_servs(source_p, "", CAP_ENCAP, "ENCAP OPERSPY %s :%s",
614			command, target);
615			}
616			#endif /* OPERSPY_LOG */