src/commands/cmd_privmsg.cpp

   1 /*
   2  * InspIRCd -- Internet Relay Chat Daemon
   3  *
   4  *   Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
   5  *   Copyright (C) 2007-2008 Craig Edwards <craigedwards@brainbox.cc>
   6  *   Copyright (C) 2007 Robin Burchell <robin+git@viroteck.net>
   7  *
   8  * This file is part of InspIRCd.  InspIRCd is free software: you can
   9  * redistribute it and/or modify it under the terms of the GNU General Public
  10  * License as published by the Free Software Foundation, version 2.
  11  *
  12  * This program is distributed in the hope that it will be useful, but WITHOUT
  13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  14  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
  15  * details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21
  22 #include "inspircd.h"
  23
  24 /** Handle /PRIVMSG. These command handlers can be reloaded by the core,
  25  * and handle basic RFC1459 commands. Commands within modules work
  26  * the same way, however, they can be fully unloaded, where these
  27  * may not.
  28  */
  29 class CommandPrivmsg : public Command
  30 {
  31  public:
  32         /** Constructor for privmsg.
  33          */
  34         CommandPrivmsg ( Module* parent) : Command(parent,"PRIVMSG",2,2) { syntax = "<target>{,<target>} <message>"; }
  35         /** Handle command.
  36          * @param parameters The parameters to the comamnd
  37          * @param pcnt The number of parameters passed to teh command
  38          * @param user The user issuing the command
  39          * @return A value from CmdResult to indicate command success or failure.
  40          */
  41         CmdResult Handle(const std::vector<std::string>& parameters, User *user);
  42
  43         RouteDescriptor GetRouting(User* user, const std::vector<std::string>& parameters)
  44         {
  45                 if (IS_LOCAL(user))
  46                         // This is handled by the OnUserMessage hook to split the LoopCall pieces
  47                         return ROUTE_LOCALONLY;
  48                 else
  49                         return ROUTE_MESSAGE(parameters[0]);
  50         }
  51 };
  52
  53 CmdResult CommandPrivmsg::Handle (const std::vector<std::string>& parameters, User *user)
  54 {
  55         User *dest;
  56         Channel *chan;
  57         CUList except_list;
  58
  59         user->idle_lastmsg = ServerInstance->Time();
  60
  61         if (ServerInstance->Parser->LoopCall(user, this, parameters, 0))
  62                 return CMD_SUCCESS;
  63
  64         if (parameters[0][0] == '$')
  65         {
  66                 if (!user->HasPrivPermission("users/mass-message"))
  67                         return CMD_SUCCESS;
  68
  69                 ModResult MOD_RESULT;
  70                 std::string temp = parameters[1];
  71                 FIRST_MOD_RESULT(OnUserPreMessage, MOD_RESULT, (user, (void*)parameters[0].c_str(), TYPE_SERVER, temp, 0, except_list));
  72                 if (MOD_RESULT == MOD_RES_DENY)
  73                         return CMD_FAILURE;
  74
  75                 const char* text = temp.c_str();
  76                 const char* servermask = (parameters[0].c_str()) + 1;
  77
  78                 FOREACH_MOD(I_OnText,OnText(user, (void*)parameters[0].c_str(), TYPE_SERVER, text, 0, except_list));
  79                 if (InspIRCd::Match(ServerInstance->Config->ServerName, servermask, NULL))
  80                 {
  81                         user->SendAll("PRIVMSG", "%s", text);
  82                 }
  83                 FOREACH_MOD(I_OnUserMessage,OnUserMessage(user, (void*)parameters[0].c_str(), TYPE_SERVER, text, 0, except_list));
  84                 return CMD_SUCCESS;
  85         }
  86         char status = 0;
  87         const char* target = parameters[0].c_str();
  88
  89         if (ServerInstance->Modes->FindPrefix(*target))
  90         {
  91                 status = *target;
  92                 target++;
  93         }
  94         if (*target == '#')
  95         {
  96                 chan = ServerInstance->FindChan(target);
  97
  98                 except_list.insert(user);
  99
 100                 if (chan)
 101                 {
 102                         if (IS_LOCAL(user) && chan->GetPrefixValue(user) < VOICE_VALUE)
 103                         {
 104                                 if (chan->IsModeSet('n') && !chan->HasUser(user))
 105                                 {
 106                                         user->WriteNumeric(404, "%s %s :Cannot send to channel (no external messages)", user->nick.c_str(), chan->name.c_str());
 107                                         return CMD_FAILURE;
 108                                 }
 109
 110                                 if (chan->IsModeSet('m'))
 111                                 {
 112                                         user->WriteNumeric(404, "%s %s :Cannot send to channel (+m)", user->nick.c_str(), chan->name.c_str());
 113                                         return CMD_FAILURE;
 114                                 }
 115
 116                                 if (ServerInstance->Config->RestrictBannedUsers)
 117                                 {
 118                                         if (chan->IsBanned(user))
 119                                         {
 120                                                 user->WriteNumeric(404, "%s %s :Cannot send to channel (you're banned)", user->nick.c_str(), chan->name.c_str());
 121                                                 return CMD_FAILURE;
 122                                         }
 123                                 }
 124                         }
 125                         ModResult MOD_RESULT;
 126
 127                         std::string temp = parameters[1];
 128                         FIRST_MOD_RESULT(OnUserPreMessage, MOD_RESULT, (user,chan,TYPE_CHANNEL,temp,status,except_list));
 129                         if (MOD_RESULT == MOD_RES_DENY)
 130                                 return CMD_FAILURE;
 131
 132                         const char* text = temp.c_str();
 133
 134                         /* Check again, a module may have zapped the input string */
 135                         if (temp.empty())
 136                         {
 137                                 user->WriteNumeric(412, "%s :No text to send", user->nick.c_str());
 138                                 return CMD_FAILURE;
 139                         }
 140
 141                         FOREACH_MOD(I_OnText,OnText(user,chan,TYPE_CHANNEL,text,status,except_list));
 142
 143                         if (status)
 144                         {
 145                                 if (ServerInstance->Config->UndernetMsgPrefix)
 146                                 {
 147                                         chan->WriteAllExcept(user, false, status, except_list, "PRIVMSG %c%s :%c %s", status, chan->name.c_str(), status, text);
 148                                 }
 149                                 else
 150                                 {
 151                                         chan->WriteAllExcept(user, false, status, except_list, "PRIVMSG %c%s :%s", status, chan->name.c_str(), text);
 152                                 }
 153                         }
 154                         else
 155                         {
 156                                 chan->WriteAllExcept(user, false, status, except_list, "PRIVMSG %s :%s", chan->name.c_str(), text);
 157                         }
 158
 159                         FOREACH_MOD(I_OnUserMessage,OnUserMessage(user,chan,TYPE_CHANNEL,text,status,except_list));
 160                 }
 161                 else
 162                 {
 163                         /* no such nick/channel */
 164                         user->WriteNumeric(401, "%s %s :No such nick/channel", user->nick.c_str(), target);
 165                         return CMD_FAILURE;
 166                 }
 167                 return CMD_SUCCESS;
 168         }
 169
 170         const char* destnick = parameters[0].c_str();
 171
 172         if (IS_LOCAL(user))
 173         {
 174                 const char* targetserver = strchr(destnick, '@');
 175
 176                 if (targetserver)
 177                 {
 178                         std::string nickonly;
 179
 180                         nickonly.assign(destnick, 0, targetserver - destnick);
 181                         dest = ServerInstance->FindNickOnly(nickonly);
 182                         if (dest && strcasecmp(dest->server.c_str(), targetserver + 1))
 183                         {
 184                                 /* Incorrect server for user */
 185                                 user->WriteNumeric(401, "%s %s :No such nick/channel",user->nick.c_str(), parameters[0].c_str());
 186                                 return CMD_FAILURE;
 187                         }
 188                 }
 189                 else
 190                         dest = ServerInstance->FindNickOnly(destnick);
 191         }
 192         else
 193                 dest = ServerInstance->FindNick(destnick);
 194
 195         if ((dest) && (dest->registered == REG_ALL))
 196         {
 197                 if (parameters[1].empty())
 198                 {
 199                         user->WriteNumeric(412, "%s :No text to send", user->nick.c_str());
 200                         return CMD_FAILURE;
 201                 }
 202
 203                 if (IS_AWAY(dest))
 204                 {
 205                         /* auto respond with aweh msg */
 206                         user->WriteNumeric(301, "%s %s :%s", user->nick.c_str(), dest->nick.c_str(), dest->awaymsg.c_str());
 207                 }
 208
 209                 ModResult MOD_RESULT;
 210
 211                 std::string temp = parameters[1];
 212                 FIRST_MOD_RESULT(OnUserPreMessage, MOD_RESULT, (user, dest, TYPE_USER, temp, 0, except_list));
 213                 if (MOD_RESULT == MOD_RES_DENY)
 214                         return CMD_FAILURE;
 215
 216                 const char* text = temp.c_str();
 217
 218                 FOREACH_MOD(I_OnText,OnText(user, dest, TYPE_USER, text, 0, except_list));
 219
 220                 if (IS_LOCAL(dest))
 221                 {
 222                         // direct write, same server
 223                         user->WriteTo(dest, "PRIVMSG %s :%s", dest->nick.c_str(), text);
 224                 }
 225
 226                 FOREACH_MOD(I_OnUserMessage,OnUserMessage(user, dest, TYPE_USER, text, 0, except_list));
 227         }
 228         else
 229         {
 230                 /* no such nick/channel */
 231                 user->WriteNumeric(401, "%s %s :No such nick/channel",user->nick.c_str(), parameters[0].c_str());
 232                 return CMD_FAILURE;
 233         }
 234         return CMD_SUCCESS;
 235 }
 236
 237 COMMAND_INIT(CommandPrivmsg)