modules/m_cmessage.c

   1 /*
   2  *  ircd-ratbox: an advanced Internet Relay Chat Daemon(ircd).
   3  *  m_cmessage.c: Handles CPRIVMSG/CNOTICE, target change limitation free
   4  *                PRIVMSG/NOTICE implementations.
   5  *
   6  *  Copyright (C) 2005 Lee Hardy <lee -at- leeh.co.uk>
   7  *  Copyright (C) 2005 ircd-ratbox development team
   8  *
   9  *  Redistribution and use in source and binary forms, with or without
  10  *  modification, are permitted provided that the following conditions are
  11  *  met:
  12  *
  13  *  1.Redistributions of source code must retain the above copyright notice,
  14  *    this list of conditions and the following disclaimer.
  15  *  2.Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *  3.The name of the author may not be used to endorse or promote products
  19  *    derived from this software without specific prior written permission.
  20  *
  21  *  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  22  *  IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  23  *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  24  *  DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
  25  *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  26  *  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  27  *  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  *  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  29  *  STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  30  *  IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  31  *  POSSIBILITY OF SUCH DAMAGE.
  32  *
  33  *  $Id: m_cmessage.c 1543 2006-06-01 18:18:28Z jilles $
  34  */
  35 #include "stdinc.h"
  36 #include "client.h"
  37 #include "channel.h"
  38 #include "numeric.h"
  39 #include "msg.h"
  40 #include "modules.h"
  41 #include "hash.h"
  42 #include "send.h"
  43 #include "s_conf.h"
  44 #include "packet.h"
  45 #include "supported.h"
  46
  47 static int m_cmessage(int, const char *, struct MsgBuf *, struct Client *, struct Client *, int, const char **);
  48 static int m_cprivmsg(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
  49 static int m_cnotice(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
  50
  51 static int
  52 _modinit(void)
  53 {
  54         add_isupport("CPRIVMSG", isupport_string, "");
  55         add_isupport("CNOTICE", isupport_string, "");
  56
  57         return 0;
  58 }
  59
  60 static void
  61 _moddeinit(void)
  62 {
  63         delete_isupport("CPRIVMSG");
  64         delete_isupport("CNOTICE");
  65 }
  66
  67 struct Message cprivmsg_msgtab = {
  68         "CPRIVMSG", 0, 0, 0, 0,
  69         {mg_ignore, {m_cprivmsg, 4}, mg_ignore, mg_ignore, mg_ignore, {m_cprivmsg, 4}}
  70 };
  71 struct Message cnotice_msgtab = {
  72         "CNOTICE", 0, 0, 0, 0,
  73         {mg_ignore, {m_cnotice, 4}, mg_ignore, mg_ignore, mg_ignore, {m_cnotice, 4}}
  74 };
  75
  76 mapi_clist_av1 cmessage_clist[] = { &cprivmsg_msgtab, &cnotice_msgtab, NULL };
  77 DECLARE_MODULE_AV1(cmessage, _modinit, _moddeinit, cmessage_clist, NULL, NULL, "$Revision: 1543 $");
  78
  79 #define PRIVMSG 0
  80 #define NOTICE 1
  81
  82 static int
  83 m_cprivmsg(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
  84 {
  85         return m_cmessage(PRIVMSG, "PRIVMSG", msgbuf_p, client_p, source_p, parc, parv);
  86 }
  87
  88 static int
  89 m_cnotice(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
  90 {
  91         return m_cmessage(NOTICE, "NOTICE", msgbuf_p, client_p, source_p, parc, parv);
  92 }
  93
  94 static int
  95 m_cmessage(int p_or_n, const char *command, struct MsgBuf *msgbuf_p,
  96                 struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
  97 {
  98         struct Client *target_p;
  99         struct Channel *chptr;
 100         struct membership *msptr;
 101
 102         if(!IsFloodDone(source_p))
 103                 flood_endgrace(source_p);
 104
 105         if((target_p = find_named_person(parv[1])) == NULL)
 106         {
 107                 if(p_or_n != NOTICE)
 108                         sendto_one_numeric(source_p, ERR_NOSUCHNICK,
 109                                         form_str(ERR_NOSUCHNICK), parv[1]);
 110                 return 0;
 111         }
 112
 113         if((chptr = find_channel(parv[2])) == NULL)
 114         {
 115                 if(p_or_n != NOTICE)
 116                         sendto_one_numeric(source_p, ERR_NOSUCHCHANNEL,
 117                                         form_str(ERR_NOSUCHCHANNEL), parv[2]);
 118                 return 0;
 119         }
 120
 121         if((msptr = find_channel_membership(chptr, source_p)) == NULL)
 122         {
 123                 if(p_or_n != NOTICE)
 124                         sendto_one_numeric(source_p, ERR_NOTONCHANNEL,
 125                                         form_str(ERR_NOTONCHANNEL),
 126                                         chptr->chname);
 127                 return 0;
 128         }
 129
 130         if(!is_chanop_voiced(msptr))
 131         {
 132                 if(p_or_n != NOTICE)
 133                         sendto_one(source_p, form_str(ERR_VOICENEEDED),
 134                                 me.name, source_p->name, chptr->chname);
 135                 return 0;
 136         }
 137
 138         if(!IsMember(target_p, chptr))
 139         {
 140                 if(p_or_n != NOTICE)
 141                         sendto_one_numeric(source_p, ERR_USERNOTINCHANNEL,
 142                                         form_str(ERR_USERNOTINCHANNEL),
 143                                         target_p->name, chptr->chname);
 144                 return 0;
 145         }
 146
 147         if(MyClient(target_p) && (IsSetCallerId(target_p) || (IsSetRegOnlyMsg(target_p) && !source_p->user->suser[0])) &&
 148            !accept_message(source_p, target_p) && !IsOper(source_p))
 149         {
 150                 if (IsSetRegOnlyMsg(target_p) && !source_p->user->suser[0])
 151                 {
 152                         if (p_or_n != NOTICE)
 153                                 sendto_one_numeric(source_p, ERR_NONONREG,
 154                                                 form_str(ERR_NONONREG),
 155                                                 target_p->name);
 156                         return 0;
 157                 }
 158                 if(p_or_n != NOTICE)
 159                         sendto_one_numeric(source_p, ERR_TARGUMODEG,
 160                                         form_str(ERR_TARGUMODEG), target_p->name);
 161
 162                 if((target_p->localClient->last_caller_id_time +
 163                     ConfigFileEntry.caller_id_wait) < rb_current_time())
 164                 {
 165                         if(p_or_n != NOTICE)
 166                                 sendto_one_numeric(source_p, RPL_TARGNOTIFY,
 167                                                 form_str(RPL_TARGNOTIFY),
 168                                                 target_p->name);
 169
 170                         sendto_one(target_p, form_str(RPL_UMODEGMSG),
 171                                 me.name, target_p->name, source_p->name,
 172                                 source_p->username, source_p->host);
 173
 174                         target_p->localClient->last_caller_id_time = rb_current_time();
 175                 }
 176
 177                 return 0;
 178         }
 179
 180         if(p_or_n != NOTICE)
 181                 source_p->localClient->last = rb_current_time();
 182
 183         sendto_anywhere(target_p, source_p, command, ":%s", parv[3]);
 184         return 0;
 185 }