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         for(char letter = 'A'; letter <= 'z'; letter++)
  26         {
  27                 ModeHandler* mh = ServerInstance->Modes->FindMode(letter, MODETYPE_CHANNEL);
  28                 if (!mh || mh->IsListMode())
  29                         continue;
  30                 if (!channel->IsModeSet(mh))
  31                         continue;
  32                 items << " +" << mh->name;
  33                 if (mh->GetNumParams(true))
  34                         items << " " << channel->GetModeParameter(mh);
  35         }
  36         const std::string line = ":" + ServerInstance->Config->ServerName + " 961 " + user->nick + " " + channel->name;
  37         user->SendText(line, items);
  38         user->WriteNumeric(960, "%s %s :End of mode list", user->nick.c_str(), channel->name.c_str());
  39 }
  40
  41 class CommandProp : public Command
  42 {
  43  public:
  44         CommandProp(Module* parent) : Command(parent, "PROP", 1)
  45         {
  46                 syntax = "<user|channel> {[+-]<mode> [<value>]}*";
  47         }
  48
  49         CmdResult Handle(const std::vector<std::string> &parameters, User *src)
  50         {
  51                 if (parameters.size() == 1)
  52                 {
  53                         Channel* chan = ServerInstance->FindChan(parameters[0]);
  54                         if (chan)
  55                                 DisplayList(src, chan);
  56                         return CMD_SUCCESS;
  57                 }
  58                 unsigned int i = 1;
  59                 std::vector<std::string> modes;
  60                 modes.push_back(parameters[0]);
  61                 modes.push_back("");
  62                 while (i < parameters.size())
  63                 {
  64                         std::string prop = parameters[i++];
  65                         bool plus = prop[0] != '-';
  66                         if (prop[0] == '+' || prop[0] == '-')
  67                                 prop.erase(prop.begin());
  68
  69                         for(char letter = 'A'; letter <= 'z'; letter++)
  70                         {
  71                                 ModeHandler* mh = ServerInstance->Modes->FindMode(letter, MODETYPE_CHANNEL);
  72                                 if (mh && mh->name == prop)
  73                                 {
  74                                         modes[1].append((plus ? "+" : "-") + std::string(1, letter));
  75                                         if (mh->GetNumParams(plus))
  76                                         {
  77                                                 if (i != parameters.size())
  78                                                         modes.push_back(parameters[i++]);
  79                                         }
  80                                 }
  81                         }
  82                 }
  83                 ServerInstance->Modes->Process(modes, src);
  84                 return CMD_SUCCESS;
  85         }
  86 };
  87
  88 class DummyZ : public ModeHandler
  89 {
  90  public:
  91         DummyZ(Module* parent) : ModeHandler(parent, "namebase", 'Z', PARAM_ALWAYS, MODETYPE_CHANNEL)
  92         {
  93                 list = true;
  94         }
  95 };
  96
  97 class ModuleNamedModes : public Module
  98 {
  99         CommandProp cmd;
 100         DummyZ dummyZ;
 101  public:
 102         ModuleNamedModes() : cmd(this), dummyZ(this)
 103         {
 104         }
 105
 106         void init() CXX11_OVERRIDE
 107         {
 108                 ServerInstance->Modules->AddService(cmd);
 109                 ServerInstance->Modules->AddService(dummyZ);
 110
 111                 Implementation eventlist[] = { I_OnPreMode };
 112                 ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation));
 113         }
 114
 115         Version GetVersion() CXX11_OVERRIDE
 116         {
 117                 return Version("Provides the ability to manipulate modes via long names.",VF_VENDOR);
 118         }
 119
 120         void Prioritize()
 121         {
 122                 ServerInstance->Modules->SetPriority(this, I_OnPreMode, PRIORITY_FIRST);
 123         }
 124
 125         ModResult OnPreMode(User* source, User* dest, Channel* channel, const std::vector<std::string>& parameters) CXX11_OVERRIDE
 126         {
 127                 if (!channel)
 128                         return MOD_RES_PASSTHRU;
 129                 if (parameters[1].find('Z') == std::string::npos)
 130                         return MOD_RES_PASSTHRU;
 131                 if (parameters.size() <= 2)
 132                 {
 133                         DisplayList(source, channel);
 134                         return MOD_RES_DENY;
 135                 }
 136
 137                 std::vector<std::string> newparms;
 138                 newparms.push_back(parameters[0]);
 139                 newparms.push_back(parameters[1]);
 140
 141                 std::string modelist = newparms[1];
 142                 bool adding = true;
 143                 unsigned int param_at = 2;
 144                 for(unsigned int i = 0; i < modelist.length(); i++)
 145                 {
 146                         unsigned char modechar = modelist[i];
 147                         if (modechar == '+' || modechar == '-')
 148                         {
 149                                 adding = (modechar == '+');
 150                                 continue;
 151                         }
 152                         ModeHandler *mh = ServerInstance->Modes->FindMode(modechar, MODETYPE_CHANNEL);
 153                         if (modechar == 'Z')
 154                         {
 155                                 modechar = 0;
 156                                 std::string name, value;
 157                                 if (param_at < parameters.size())
 158                                         name = parameters[param_at++];
 159                                 std::string::size_type eq = name.find('=');
 160                                 if (eq != std::string::npos)
 161                                 {
 162                                         value = name.substr(eq + 1);
 163                                         name = name.substr(0, eq);
 164                                 }
 165                                 for(char letter = 'A'; modechar == 0 && letter <= 'z'; letter++)
 166                                 {
 167                                         mh = ServerInstance->Modes->FindMode(letter, MODETYPE_CHANNEL);
 168                                         if (mh && mh->name == name)
 169                                         {
 170                                                 if (mh->GetNumParams(adding))
 171                                                 {
 172                                                         if (!value.empty())
 173                                                         {
 174                                                                 newparms.push_back(value);
 175                                                                 modechar = letter;
 176                                                                 break;
 177                                                         }
 178                                                 }
 179                                                 else
 180                                                 {
 181                                                         modechar = letter;
 182                                                         break;
 183                                                 }
 184                                         }
 185                                 }
 186                                 if (modechar)
 187                                         modelist[i] = modechar;
 188                                 else
 189                                         modelist.erase(i--, 1);
 190                         }
 191                         else if (mh && mh->GetNumParams(adding) && param_at < parameters.size())
 192                         {
 193                                 newparms.push_back(parameters[param_at++]);
 194                         }
 195                 }
 196                 newparms[1] = modelist;
 197                 ServerInstance->Modes->Process(newparms, source);
 198                 return MOD_RES_DENY;
 199         }
 200 };
 201
 202 MODULE_INIT(ModuleNamedModes)