src/modules/m_rmode.cpp

   1 /*
   2  * InspIRCd -- Internet Relay Chat Daemon
   3  *
   4  *   Copyright (C) 2013 Daniel Vassdal <shutter@canternet.org>
   5  *
   6  * This file is part of InspIRCd.  InspIRCd is free software: you can
   7  * redistribute it and/or modify it under the terms of the GNU General Public
   8  * License as published by the Free Software Foundation, version 2.
   9  *
  10  * This program is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  12  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
  13  * details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19
  20 #include "inspircd.h"
  21 #include "listmode.h"
  22
  23 /** Handle /RMODE
  24  */
  25 class CommandRMode : public Command
  26 {
  27  public:
  28         CommandRMode(Module* Creator) : Command(Creator,"RMODE", 2, 3)
  29         {
  30                 allow_empty_last_param = false;
  31                 syntax = "<channel> <mode> [pattern]";
  32         }
  33
  34         CmdResult Handle(const std::vector<std::string> &parameters, User *user)
  35         {
  36                 ModeHandler* mh;
  37                 Channel* chan = ServerInstance->FindChan(parameters[0]);
  38                 char modeletter = parameters[1][0];
  39
  40                 if (chan == NULL)
  41                 {
  42                         user->WriteNotice("The channel " + parameters[0] + " does not exist.");
  43                         return CMD_FAILURE;
  44                 }
  45
  46                 mh = ServerInstance->Modes->FindMode(modeletter, MODETYPE_CHANNEL);
  47                 if (mh == NULL || parameters[1].size() > 1)
  48                 {
  49                         user->WriteNotice(parameters[1] + " is not a valid channel mode.");
  50                         return CMD_FAILURE;
  51                 }
  52
  53                 if (chan->GetPrefixValue(user) < mh->GetLevelRequired())
  54                 {
  55                         user->WriteNotice("You do not have access to unset " + ConvToStr(modeletter) + " on " +  chan->name + ".");
  56                         return CMD_FAILURE;
  57                 }
  58
  59                 std::string pattern = parameters.size() > 2 ? parameters[2] : "*";
  60                 PrefixMode* pm;
  61                 ListModeBase* lm;
  62                 ListModeBase::ModeList* ml;
  63                 irc::modestacker modestack(false);
  64
  65                 if (!mh->IsListMode())
  66                 {
  67                         if (chan->IsModeSet(mh))
  68                                 modestack.Push(modeletter);
  69                 }
  70                 else if ((pm = mh->IsPrefixMode()))
  71                 {
  72                         // As user prefix modes don't have a GetList() method, let's iterate through the channel's users.
  73                         for (UserMembIter it = chan->userlist.begin(); it != chan->userlist.end(); ++it)
  74                         {
  75                                 if (!InspIRCd::Match(it->first->nick, pattern))
  76                                         continue;
  77                                 if (it->second->hasMode(modeletter) && !((it->first == user) && (pm->GetPrefixRank() > VOICE_VALUE)))
  78                                         modestack.Push(modeletter, it->first->nick);
  79                         }
  80                 }
  81                 else if (((lm = dynamic_cast<ListModeBase*>(mh)) != NULL) && ((ml = lm->GetList(chan)) != NULL))
  82                 {
  83                         for (ListModeBase::ModeList::iterator it = ml->begin(); it != ml->end(); ++it)
  84                         {
  85                                 if (!InspIRCd::Match(it->mask, pattern))
  86                                         continue;
  87                                 modestack.Push(modeletter, it->mask);
  88                         }
  89                 }
  90                 else
  91                 {
  92                         user->WriteNotice("Could not remove channel mode " + ConvToStr(modeletter));
  93                         return CMD_FAILURE;
  94                 }
  95
  96                 parameterlist stackresult;
  97                 stackresult.push_back(chan->name);
  98                 while (modestack.GetStackedLine(stackresult))
  99                 {
 100                         ServerInstance->Modes->Process(stackresult, user);
 101                         stackresult.erase(stackresult.begin() + 1, stackresult.end());
 102                 }
 103
 104                 return CMD_SUCCESS;
 105         }
 106 };
 107
 108 class ModuleRMode : public Module
 109 {
 110         CommandRMode cmd;
 111
 112  public:
 113         ModuleRMode() : cmd(this) { }
 114
 115         Version GetVersion() CXX11_OVERRIDE
 116         {
 117                 return Version("Allows glob-based removal of list modes", VF_VENDOR);
 118         }
 119 };
 120
 121 MODULE_INIT(ModuleRMode)