extensions/m_omode.c

   1 /*
   2  *  Charybdis: an advanced Internet Relay Chat Daemon(ircd).
   3  *  m_omode.c: allows oper mode hacking
   4  *
   5  *  Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
   6  *  Copyright (C) 1996-2002 Hybrid Development Team
   7  *  Copyright (C) 2002-2004 ircd-ratbox development team
   8  *  Copyright (C) 2006 Charybdis development team
   9  *
  10  *  This program is free software; you can redistribute it and/or modify
  11  *  it under the terms of the GNU General Public License as published by
  12  *  the Free Software Foundation; either version 2 of the License, or
  13  *  (at your option) any later version.
  14  *
  15  *  This program is distributed in the hope that it will be useful,
  16  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  *  GNU General Public License for more details.
  19  *
  20  *  You should have received a copy of the GNU General Public License
  21  *  along with this program; if not, write to the Free Software
  22  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
  23  *  USA
  24  */
  25
  26 #include "stdinc.h"
  27 #include "channel.h"
  28 #include "client.h"
  29 #include "hash.h"
  30 #include "match.h"
  31 #include "ircd.h"
  32 #include "numeric.h"
  33 #include "s_user.h"
  34 #include "s_conf.h"
  35 #include "s_newconf.h"
  36 #include "s_serv.h"
  37 #include "send.h"
  38 #include "msg.h"
  39 #include "parse.h"
  40 #include "modules.h"
  41 #include "packet.h"
  42 #include "messages.h"
  43 #include "logger.h"
  44
  45 static const char omode_desc[] = "Allow admins to forcibly change modes on channels with the OMODE command";
  46
  47 static void mo_omode(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
  48
  49 struct Message omode_msgtab = {
  50         "OMODE", 0, 0, 0, 0,
  51         {mg_unreg, mg_not_oper, mg_ignore, mg_ignore, mg_ignore, {mo_omode, 3}}
  52 };
  53
  54 mapi_clist_av1 omode_clist[] = { &omode_msgtab, NULL };
  55
  56 DECLARE_MODULE_AV2(omode, NULL, NULL, omode_clist, NULL, NULL, NULL, NULL, omode_desc);
  57
  58 /*
  59  * mo_omode - MODE command handler
  60  * parv[1] - channel
  61  */
  62 static void
  63 mo_omode(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
  64 {
  65         struct Channel *chptr = NULL;
  66         struct membership *msptr;
  67         char params[512];
  68         int i;
  69         int wasonchannel;
  70
  71         /* admins only */
  72         if(!IsOperAdmin(source_p))
  73         {
  74                 sendto_one(source_p, form_str(ERR_NOPRIVS), me.name, source_p->name, "admin");
  75                 return;
  76         }
  77
  78         /* Now, try to find the channel in question */
  79         if(!IsChanPrefix(parv[1][0]) || !check_channel_name(parv[1]))
  80         {
  81                 sendto_one_numeric(source_p, ERR_BADCHANNAME,
  82                                 form_str(ERR_BADCHANNAME), parv[1]);
  83                 return;
  84         }
  85
  86         chptr = find_channel(parv[1]);
  87
  88         if(chptr == NULL)
  89         {
  90                 sendto_one_numeric(source_p, ERR_NOSUCHCHANNEL,
  91                                 form_str(ERR_NOSUCHCHANNEL), parv[1]);
  92                 return;
  93         }
  94
  95         /* Now know the channel exists */
  96         msptr = find_channel_membership(chptr, source_p);
  97         wasonchannel = msptr != NULL;
  98
  99         if (is_chanop(msptr))
 100         {
 101                 sendto_one_notice(source_p, ":Use a normal MODE you idiot");
 102                 return;
 103         }
 104
 105         params[0] = '\0';
 106         for (i = 2; i < parc; i++)
 107         {
 108                 if (i != 2)
 109                         rb_strlcat(params, " ", sizeof params);
 110                 rb_strlcat(params, parv[i], sizeof params);
 111         }
 112
 113         sendto_wallops_flags(UMODE_WALLOP, &me,
 114                              "OMODE called for [%s] [%s] by %s!%s@%s",
 115                              parv[1], params, source_p->name, source_p->username, source_p->host);
 116         ilog(L_MAIN, "OMODE called for [%s] [%s] by %s",
 117              parv[1], params, get_oper_name(source_p));
 118
 119         if(*chptr->chname != '&')
 120                 sendto_server(NULL, NULL, NOCAPS, NOCAPS,
 121                               ":%s WALLOPS :OMODE called for [%s] [%s] by %s!%s@%s",
 122                               me.name, parv[1], params, source_p->name, source_p->username,
 123                               source_p->host);
 124
 125 #if 0
 126         set_channel_mode(client_p, source_p->servptr, chptr, msptr,
 127                          parc - 2, parv + 2);
 128 #else
 129         if (parc == 4 && !strcmp(parv[2], "+o") && !irccmp(parv[3], source_p->name))
 130         {
 131                 /* Opping themselves */
 132                 if (!wasonchannel)
 133                 {
 134                         sendto_one_numeric(source_p, ERR_USERNOTINCHANNEL,
 135                                            form_str(ERR_USERNOTINCHANNEL), parv[3], chptr->chname);
 136                         return;
 137                 }
 138                 sendto_channel_local(&me, ALL_MEMBERS, chptr, ":%s MODE %s +o %s",
 139                                 me.name, parv[1], source_p->name);
 140                 sendto_server(NULL, chptr, CAP_TS6, NOCAPS,
 141                                 ":%s TMODE %ld %s +o %s",
 142                                 me.id, (long) chptr->channelts, parv[1],
 143                                 source_p->id);
 144                 msptr->flags |= CHFL_CHANOP;
 145         }
 146         else
 147         {
 148                 /* Hack it so set_channel_mode() will accept */
 149                 if (wasonchannel)
 150                         msptr->flags |= CHFL_CHANOP;
 151                 else
 152                 {
 153                         add_user_to_channel(chptr, source_p, CHFL_CHANOP);
 154                         msptr = find_channel_membership(chptr, source_p);
 155                 }
 156                 set_channel_mode(client_p, source_p, chptr, msptr,
 157                                 parc - 2, parv + 2);
 158                 /* We know they were not opped before and they can't have opped
 159                  * themselves as set_channel_mode() does not allow that
 160                  * -- jilles */
 161                 if (wasonchannel)
 162                         msptr->flags &= ~CHFL_CHANOP;
 163                 else
 164                         remove_user_from_channel(msptr);
 165         }
 166 #endif
 167 }