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 namespace
  25 {
  26         const char* MessageTypeString[] = { "PRIVMSG", "NOTICE" };
  27 }
  28
  29 class MessageCommandBase : public Command
  30 {
  31         ChanModeReference moderatedmode;
  32         ChanModeReference noextmsgmode;
  33
  34  public:
  35         MessageCommandBase(Module* parent, MessageType mt)
  36                 : Command(parent, MessageTypeString[mt], 2, 2)
  37                 , moderatedmode(parent, "moderated")
  38                 , noextmsgmode(parent, "noextmsg")
  39         {
  40                 syntax = "<target>{,<target>} <message>";
  41         }
  42
  43         /** Handle command.
  44          * @param parameters The parameters to the comamnd
  45          * @param user The user issuing the command
  46          * @return A value from CmdResult to indicate command success or failure.
  47          */
  48         CmdResult HandleMessage(const std::vector<std::string>& parameters, User* user, MessageType mt);
  49
  50         RouteDescriptor GetRouting(User* user, const std::vector<std::string>& parameters)
  51         {
  52                 if (IS_LOCAL(user))
  53                         // This is handled by the OnUserMessage hook to split the LoopCall pieces
  54                         return ROUTE_LOCALONLY;
  55                 else
  56                         return ROUTE_MESSAGE(parameters[0]);
  57         }
  58 };
  59
  60 CmdResult MessageCommandBase::HandleMessage(const std::vector<std::string>& parameters, User* user, MessageType mt)
  61 {
  62         User *dest;
  63         Channel *chan;
  64         CUList except_list;
  65
  66         LocalUser* localuser = IS_LOCAL(user);
  67         if (localuser)
  68                 localuser->idle_lastmsg = ServerInstance->Time();
  69
  70         if (CommandParser::LoopCall(user, this, parameters, 0))
  71                 return CMD_SUCCESS;
  72
  73         if (parameters[0][0] == '$')
  74         {
  75                 if (!user->HasPrivPermission("users/mass-message"))
  76                         return CMD_SUCCESS;
  77
  78                 ModResult MOD_RESULT;
  79                 std::string temp = parameters[1];
  80                 FIRST_MOD_RESULT(OnUserPreMessage, MOD_RESULT, (user, (void*)parameters[0].c_str(), TYPE_SERVER, temp, 0, except_list, mt));
  81                 if (MOD_RESULT == MOD_RES_DENY)
  82                         return CMD_FAILURE;
  83
  84                 const char* text = temp.c_str();
  85                 const char* servermask = (parameters[0].c_str()) + 1;
  86
  87                 FOREACH_MOD(I_OnText,OnText(user, (void*)parameters[0].c_str(), TYPE_SERVER, text, 0, except_list));
  88                 if (InspIRCd::Match(ServerInstance->Config->ServerName, servermask, NULL))
  89                 {
  90                         user->SendAll(MessageTypeString[mt], "%s", text);
  91                 }
  92                 FOREACH_MOD(I_OnUserMessage,OnUserMessage(user, (void*)parameters[0].c_str(), TYPE_SERVER, text, 0, except_list, mt));
  93                 return CMD_SUCCESS;
  94         }
  95         char status = 0;
  96         const char* target = parameters[0].c_str();
  97
  98         if (ServerInstance->Modes->FindPrefix(*target))
  99         {
 100                 status = *target;
 101                 target++;
 102         }
 103         if (*target == '#')
 104         {
 105                 chan = ServerInstance->FindChan(target);
 106
 107                 except_list.insert(user);
 108
 109                 if (chan)
 110                 {
 111                         if (localuser && chan->GetPrefixValue(user) < VOICE_VALUE)
 112                         {
 113                                 if (chan->IsModeSet(noextmsgmode) && !chan->HasUser(user))
 114                                 {
 115                                         user->WriteNumeric(404, "%s %s :Cannot send to channel (no external messages)", user->nick.c_str(), chan->name.c_str());
 116                                         return CMD_FAILURE;
 117                                 }
 118
 119                                 if (chan->IsModeSet(moderatedmode))
 120                                 {
 121                                         user->WriteNumeric(404, "%s %s :Cannot send to channel (+m)", user->nick.c_str(), chan->name.c_str());
 122                                         return CMD_FAILURE;
 123                                 }
 124
 125                                 if (ServerInstance->Config->RestrictBannedUsers)
 126                                 {
 127                                         if (chan->IsBanned(user))
 128                                         {
 129                                                 user->WriteNumeric(404, "%s %s :Cannot send to channel (you're banned)", user->nick.c_str(), chan->name.c_str());
 130                                                 return CMD_FAILURE;
 131                                         }
 132                                 }
 133                         }
 134                         ModResult MOD_RESULT;
 135
 136                         std::string temp = parameters[1];
 137                         FIRST_MOD_RESULT(OnUserPreMessage, MOD_RESULT, (user, chan, TYPE_CHANNEL, temp, status, except_list, mt));
 138                         if (MOD_RESULT == MOD_RES_DENY)
 139                                 return CMD_FAILURE;
 140
 141                         const char* text = temp.c_str();
 142
 143                         /* Check again, a module may have zapped the input string */
 144                         if (temp.empty())
 145                         {
 146                                 user->WriteNumeric(412, "%s :No text to send", user->nick.c_str());
 147                                 return CMD_FAILURE;
 148                         }
 149
 150                         FOREACH_MOD(I_OnText,OnText(user,chan,TYPE_CHANNEL,text,status,except_list));
 151
 152                         if (status)
 153                         {
 154                                 if (ServerInstance->Config->UndernetMsgPrefix)
 155                                 {
 156                                         chan->WriteAllExcept(user, false, status, except_list, "%s %c%s :%c %s", MessageTypeString[mt], status, chan->name.c_str(), status, text);
 157                                 }
 158                                 else
 159                                 {
 160                                         chan->WriteAllExcept(user, false, status, except_list, "%s %c%s :%s", MessageTypeString[mt], status, chan->name.c_str(), text);
 161                                 }
 162                         }
 163                         else
 164                         {
 165                                 chan->WriteAllExcept(user, false, status, except_list, "%s %s :%s", MessageTypeString[mt], chan->name.c_str(), text);
 166                         }
 167
 168                         FOREACH_MOD(I_OnUserMessage, OnUserMessage(user,chan, TYPE_CHANNEL, text, status, except_list, mt));
 169                 }
 170                 else
 171                 {
 172                         /* no such nick/channel */
 173                         user->WriteNumeric(401, "%s %s :No such nick/channel", user->nick.c_str(), target);
 174                         return CMD_FAILURE;
 175                 }
 176                 return CMD_SUCCESS;
 177         }
 178
 179         const char* destnick = parameters[0].c_str();
 180
 181         if (localuser)
 182         {
 183                 const char* targetserver = strchr(destnick, '@');
 184
 185                 if (targetserver)
 186                 {
 187                         std::string nickonly;
 188
 189                         nickonly.assign(destnick, 0, targetserver - destnick);
 190                         dest = ServerInstance->FindNickOnly(nickonly);
 191                         if (dest && strcasecmp(dest->server.c_str(), targetserver + 1))
 192                         {
 193                                 /* Incorrect server for user */
 194                                 user->WriteNumeric(401, "%s %s :No such nick/channel",user->nick.c_str(), parameters[0].c_str());
 195                                 return CMD_FAILURE;
 196                         }
 197                 }
 198                 else
 199                         dest = ServerInstance->FindNickOnly(destnick);
 200         }
 201         else
 202                 dest = ServerInstance->FindNick(destnick);
 203
 204         if ((dest) && (dest->registered == REG_ALL))
 205         {
 206                 if (parameters[1].empty())
 207                 {
 208                         user->WriteNumeric(412, "%s :No text to send", user->nick.c_str());
 209                         return CMD_FAILURE;
 210                 }
 211
 212                 if ((dest->IsAway()) && (mt == MSG_PRIVMSG))
 213                 {
 214                         /* auto respond with aweh msg */
 215                         user->WriteNumeric(301, "%s %s :%s", user->nick.c_str(), dest->nick.c_str(), dest->awaymsg.c_str());
 216                 }
 217
 218                 ModResult MOD_RESULT;
 219
 220                 std::string temp = parameters[1];
 221                 FIRST_MOD_RESULT(OnUserPreMessage, MOD_RESULT, (user, dest, TYPE_USER, temp, 0, except_list, mt));
 222                 if (MOD_RESULT == MOD_RES_DENY)
 223                         return CMD_FAILURE;
 224
 225                 const char* text = temp.c_str();
 226
 227                 FOREACH_MOD(I_OnText,OnText(user, dest, TYPE_USER, text, 0, except_list));
 228
 229                 if (IS_LOCAL(dest))
 230                 {
 231                         // direct write, same server
 232                         user->WriteTo(dest, "%s %s :%s", MessageTypeString[mt], dest->nick.c_str(), text);
 233                 }
 234
 235                 FOREACH_MOD(I_OnUserMessage,OnUserMessage(user, dest, TYPE_USER, text, 0, except_list, mt));
 236         }
 237         else
 238         {
 239                 /* no such nick/channel */
 240                 user->WriteNumeric(401, "%s %s :No such nick/channel",user->nick.c_str(), parameters[0].c_str());
 241                 return CMD_FAILURE;
 242         }
 243         return CMD_SUCCESS;
 244 }
 245
 246 template<MessageType MT>
 247 class CommandMessage : public MessageCommandBase
 248 {
 249  public:
 250         CommandMessage(Module* parent)
 251                 : MessageCommandBase(parent, MT)
 252         {
 253         }
 254
 255         CmdResult Handle(const std::vector<std::string>& parameters, User* user)
 256         {
 257                 return HandleMessage(parameters, user, MT);
 258         }
 259 };
 260
 261 class ModuleCoreMessage : public Module
 262 {
 263         CommandMessage<MSG_PRIVMSG> CommandPrivmsg;
 264         CommandMessage<MSG_NOTICE> CommandNotice;
 265
 266  public:
 267         ModuleCoreMessage()
 268                 : CommandPrivmsg(this), CommandNotice(this)
 269         {
 270         }
 271
 272         void init()
 273         {
 274                 ServerInstance->Modules->AddService(CommandPrivmsg);
 275                 ServerInstance->Modules->AddService(CommandNotice);
 276         }
 277
 278         Version GetVersion()
 279         {
 280                 return Version("PRIVMSG, NOTICE", VF_CORE|VF_VENDOR);
 281         }
 282 };
 283
 284 MODULE_INIT(ModuleCoreMessage)