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 #include "stdinc.h"
  34 #include "client.h"
  35 #include "channel.h"
  36 #include "numeric.h"
  37 #include "msg.h"
  38 #include "modules.h"
  39 #include "hash.h"
  40 #include "send.h"
  41 #include "s_conf.h"
  42 #include "packet.h"
  43 #include "supported.h"
  44
  45 static int m_cmessage(int, const char *, struct MsgBuf *, struct Client *, struct Client *, int, const char **);
  46 static int m_cprivmsg(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
  47 static int m_cnotice(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
  48
  49 static int
  50 _modinit(void)
  51 {
  52         add_isupport("CPRIVMSG", isupport_string, "");
  53         add_isupport("CNOTICE", isupport_string, "");
  54
  55         return 0;
  56 }
  57
  58 static void
  59 _moddeinit(void)
  60 {
  61         delete_isupport("CPRIVMSG");
  62         delete_isupport("CNOTICE");
  63 }
  64
  65 struct Message cprivmsg_msgtab = {
  66         "CPRIVMSG", 0, 0, 0, 0,
  67         {mg_ignore, {m_cprivmsg, 4}, mg_ignore, mg_ignore, mg_ignore, {m_cprivmsg, 4}}
  68 };
  69 struct Message cnotice_msgtab = {
  70         "CNOTICE", 0, 0, 0, 0,
  71         {mg_ignore, {m_cnotice, 4}, mg_ignore, mg_ignore, mg_ignore, {m_cnotice, 4}}
  72 };
  73
  74 mapi_clist_av1 cmessage_clist[] = { &cprivmsg_msgtab, &cnotice_msgtab, NULL };
  75 DECLARE_MODULE_AV2(cmessage, _modinit, _moddeinit, cmessage_clist, NULL, NULL, NULL, NULL, NULL);
  76
  77 #define PRIVMSG 0
  78 #define NOTICE 1
  79
  80 static int
  81 m_cprivmsg(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
  82 {
  83         return m_cmessage(PRIVMSG, "PRIVMSG", msgbuf_p, client_p, source_p, parc, parv);
  84 }
  85
  86 static int
  87 m_cnotice(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
  88 {
  89         return m_cmessage(NOTICE, "NOTICE", msgbuf_p, client_p, source_p, parc, parv);
  90 }
  91
  92 static int
  93 m_cmessage(int p_or_n, const char *command, struct MsgBuf *msgbuf_p,
  94                 struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
  95 {
  96         struct Client *target_p;
  97         struct Channel *chptr;
  98         struct membership *msptr;
  99
 100         if(!IsFloodDone(source_p))
 101                 flood_endgrace(source_p);
 102
 103         if((target_p = find_named_person(parv[1])) == NULL)
 104         {
 105                 if(p_or_n != NOTICE)
 106                         sendto_one_numeric(source_p, ERR_NOSUCHNICK,
 107                                         form_str(ERR_NOSUCHNICK), parv[1]);
 108                 return 0;
 109         }
 110
 111         if((chptr = find_channel(parv[2])) == NULL)
 112         {
 113                 if(p_or_n != NOTICE)
 114                         sendto_one_numeric(source_p, ERR_NOSUCHCHANNEL,
 115                                         form_str(ERR_NOSUCHCHANNEL), parv[2]);
 116                 return 0;
 117         }
 118
 119         if((msptr = find_channel_membership(chptr, source_p)) == NULL)
 120         {
 121                 if(p_or_n != NOTICE)
 122                         sendto_one_numeric(source_p, ERR_NOTONCHANNEL,
 123                                         form_str(ERR_NOTONCHANNEL),
 124                                         chptr->chname);
 125                 return 0;
 126         }
 127
 128         if(!is_chanop_voiced(msptr))
 129         {
 130                 if(p_or_n != NOTICE)
 131                         sendto_one(source_p, form_str(ERR_VOICENEEDED),
 132                                 me.name, source_p->name, chptr->chname);
 133                 return 0;
 134         }
 135
 136         if(!IsMember(target_p, chptr))
 137         {
 138                 if(p_or_n != NOTICE)
 139                         sendto_one_numeric(source_p, ERR_USERNOTINCHANNEL,
 140                                         form_str(ERR_USERNOTINCHANNEL),
 141                                         target_p->name, chptr->chname);
 142                 return 0;
 143         }
 144
 145         if(MyClient(target_p) && (IsSetCallerId(target_p) || (IsSetRegOnlyMsg(target_p) && !source_p->user->suser[0])) &&
 146            !accept_message(source_p, target_p) && !IsOper(source_p))
 147         {
 148                 if (IsSetRegOnlyMsg(target_p) && !source_p->user->suser[0])
 149                 {
 150                         if (p_or_n != NOTICE)
 151                                 sendto_one_numeric(source_p, ERR_NONONREG,
 152                                                 form_str(ERR_NONONREG),
 153                                                 target_p->name);
 154                         return 0;
 155                 }
 156                 if(p_or_n != NOTICE)
 157                         sendto_one_numeric(source_p, ERR_TARGUMODEG,
 158                                         form_str(ERR_TARGUMODEG), target_p->name);
 159
 160                 if((target_p->localClient->last_caller_id_time +
 161                     ConfigFileEntry.caller_id_wait) < rb_current_time())
 162                 {
 163                         if(p_or_n != NOTICE)
 164                                 sendto_one_numeric(source_p, RPL_TARGNOTIFY,
 165                                                 form_str(RPL_TARGNOTIFY),
 166                                                 target_p->name);
 167
 168                         sendto_one(target_p, form_str(RPL_UMODEGMSG),
 169                                 me.name, target_p->name, source_p->name,
 170                                 source_p->username, source_p->host);
 171
 172                         target_p->localClient->last_caller_id_time = rb_current_time();
 173                 }
 174
 175                 return 0;
 176         }
 177
 178         if(p_or_n != NOTICE)
 179                 source_p->localClient->last = rb_current_time();
 180
 181         sendto_anywhere(target_p, source_p, command, ":%s", parv[3]);
 182         return 0;
 183 }