src/modules/m_namedmodes.cpp

   1 /*
   2  * InspIRCd -- Internet Relay Chat Daemon
   3  *
   4  *   Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.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
  22 static void DisplayList(User* user, Channel* channel)
  23 {
  24         std::stringstream items;
  25         const ModeParser::ModeHandlerMap& mhs = ServerInstance->Modes->GetModes(MODETYPE_CHANNEL);
  26         for (ModeParser::ModeHandlerMap::const_iterator i = mhs.begin(); i != mhs.end(); ++i)
  27         {
  28                 ModeHandler* mh = i->second;
  29                 if (!channel->IsModeSet(mh))
  30                         continue;
  31                 items << " +" << mh->name;
  32                 if (mh->GetNumParams(true))
  33                         items << " " << channel->GetModeParameter(mh);
  34         }
  35         const std::string line = ":" + ServerInstance->Config->ServerName + " 961 " + user->nick + " " + channel->name;
  36         user->SendText(line, items);
  37         user->WriteNumeric(960, "%s :End of mode list", channel->name.c_str());
  38 }
  39
  40 class CommandProp : public Command
  41 {
  42  public:
  43         CommandProp(Module* parent) : Command(parent, "PROP", 1)
  44         {
  45                 syntax = "<user|channel> {[+-]<mode> [<value>]}*";
  46         }
  47
  48         CmdResult Handle(const std::vector<std::string> &parameters, User *src)
  49         {
  50                 if (parameters.size() == 1)
  51                 {
  52                         Channel* chan = ServerInstance->FindChan(parameters[0]);
  53                         if (chan)
  54                                 DisplayList(src, chan);
  55                         return CMD_SUCCESS;
  56                 }
  57                 unsigned int i = 1;
  58                 std::vector<std::string> modes;
  59                 modes.push_back(parameters[0]);
  60                 modes.push_back("");
  61                 while (i < parameters.size())
  62                 {
  63                         std::string prop = parameters[i++];
  64                         bool plus = prop[0] != '-';
  65                         if (prop[0] == '+' || prop[0] == '-')
  66                                 prop.erase(prop.begin());
  67
  68                         ModeHandler* mh = ServerInstance->Modes->FindMode(prop, MODETYPE_CHANNEL);
  69                         if (mh)
  70                         {
  71                                 modes[1].push_back(plus ? '+' : '-');
  72                                 modes[1].push_back(mh->GetModeChar());
  73                                 if (mh->GetNumParams(plus))
  74                                 {
  75                                         if (i != parameters.size())
  76                                                 modes.push_back(parameters[i++]);
  77                                 }
  78                         }
  79                 }
  80                 ServerInstance->Modes->Process(modes, src);
  81                 return CMD_SUCCESS;
  82         }
  83 };
  84
  85 class DummyZ : public ModeHandler
  86 {
  87  public:
  88         DummyZ(Module* parent) : ModeHandler(parent, "namebase", 'Z', PARAM_ALWAYS, MODETYPE_CHANNEL)
  89         {
  90                 list = true;
  91         }
  92 };
  93
  94 class ModuleNamedModes : public Module
  95 {
  96         CommandProp cmd;
  97         DummyZ dummyZ;
  98  public:
  99         ModuleNamedModes() : cmd(this), dummyZ(this)
 100         {
 101         }
 102
 103         Version GetVersion() CXX11_OVERRIDE
 104         {
 105                 return Version("Provides the ability to manipulate modes via long names.",VF_VENDOR);
 106         }
 107
 108         void Prioritize()
 109         {
 110                 ServerInstance->Modules->SetPriority(this, I_OnPreMode, PRIORITY_FIRST);
 111         }
 112
 113         ModResult OnPreMode(User* source, User* dest, Channel* channel, const std::vector<std::string>& parameters) CXX11_OVERRIDE
 114         {
 115                 if (!channel)
 116                         return MOD_RES_PASSTHRU;
 117                 if (parameters[1].find('Z') == std::string::npos)
 118                         return MOD_RES_PASSTHRU;
 119                 if (parameters.size() <= 2)
 120                 {
 121                         DisplayList(source, channel);
 122                         return MOD_RES_DENY;
 123                 }
 124
 125                 std::vector<std::string> newparms;
 126                 newparms.push_back(parameters[0]);
 127                 newparms.push_back(parameters[1]);
 128
 129                 std::string modelist = newparms[1];
 130                 bool adding = true;
 131                 unsigned int param_at = 2;
 132                 for(unsigned int i = 0; i < modelist.length(); i++)
 133                 {
 134                         unsigned char modechar = modelist[i];
 135                         if (modechar == '+' || modechar == '-')
 136                         {
 137                                 adding = (modechar == '+');
 138                                 continue;
 139                         }
 140                         ModeHandler *mh = ServerInstance->Modes->FindMode(modechar, MODETYPE_CHANNEL);
 141                         if (modechar == 'Z')
 142                         {
 143                                 std::string name, value;
 144                                 if (param_at < parameters.size())
 145                                         name = parameters[param_at++];
 146                                 std::string::size_type eq = name.find('=');
 147                                 if (eq != std::string::npos)
 148                                 {
 149                                         value = name.substr(eq + 1);
 150                                         name = name.substr(0, eq);
 151                                 }
 152
 153                                 mh = ServerInstance->Modes->FindMode(name, MODETYPE_CHANNEL);
 154                                 if (!mh)
 155                                 {
 156                                         // Mode handler not found
 157                                         modelist.erase(i--, 1);
 158                                         continue;
 159                                 }
 160
 161                                 if (mh->GetNumParams(adding))
 162                                 {
 163                                         if (value.empty())
 164                                         {
 165                                                 // Mode needs a parameter but there wasn't one
 166                                                 modelist.erase(i--, 1);
 167                                                 continue;
 168                                         }
 169
 170                                         newparms.push_back(value);
 171                                 }
 172
 173                                 modelist[i] = mh->GetModeChar();
 174                         }
 175                         else if (mh && mh->GetNumParams(adding) && param_at < parameters.size())
 176                         {
 177                                 newparms.push_back(parameters[param_at++]);
 178                         }
 179                 }
 180                 newparms[1] = modelist;
 181                 ServerInstance->Modes->Process(newparms, source);
 182                 return MOD_RES_DENY;
 183         }
 184 };
 185
 186 MODULE_INIT(ModuleNamedModes)