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 /* $ModDesc: Provides the ability to manipulate modes via long names. */
  21
  22 #include "inspircd.h"
  23
  24 static void DisplayList(User* user, Channel* channel)
  25 {
  26         std::stringstream items;
  27         for(char letter = 'A'; letter <= 'z'; letter++)
  28         {
  29                 ModeHandler* mh = ServerInstance->Modes->FindMode(letter, MODETYPE_CHANNEL);
  30                 if (!mh || mh->IsListMode())
  31                         continue;
  32                 if (!channel->IsModeSet(letter))
  33                         continue;
  34                 items << " +" << mh->name;
  35                 if (mh->GetNumParams(true))
  36                         items << " " << channel->GetModeParameter(letter);
  37         }
  38         const std::string line = ":" + ServerInstance->Config->ServerName + " 961 " + user->nick + " " + channel->name;
  39         user->SendText(line, items);
  40         user->WriteNumeric(960, "%s %s :End of mode list", user->nick.c_str(), channel->name.c_str());
  41 }
  42
  43 class CommandProp : public Command
  44 {
  45  public:
  46         CommandProp(Module* parent) : Command(parent, "PROP", 1)
  47         {
  48                 syntax = "<user|channel> {[+-]<mode> [<value>]}*";
  49         }
  50
  51         CmdResult Handle(const std::vector<std::string> &parameters, User *src)
  52         {
  53                 if (parameters.size() == 1)
  54                 {
  55                         Channel* chan = ServerInstance->FindChan(parameters[0]);
  56                         if (chan)
  57                                 DisplayList(src, chan);
  58                         return CMD_SUCCESS;
  59                 }
  60                 unsigned int i = 1;
  61                 std::vector<std::string> modes;
  62                 modes.push_back(parameters[0]);
  63                 modes.push_back("");
  64                 while (i < parameters.size())
  65                 {
  66                         std::string prop = parameters[i++];
  67                         bool plus = prop[0] != '-';
  68                         if (prop[0] == '+' || prop[0] == '-')
  69                                 prop.erase(prop.begin());
  70
  71                         for(char letter = 'A'; letter <= 'z'; letter++)
  72                         {
  73                                 ModeHandler* mh = ServerInstance->Modes->FindMode(letter, MODETYPE_CHANNEL);
  74                                 if (mh && mh->name == prop)
  75                                 {
  76                                         modes[1].append((plus ? "+" : "-") + std::string(1, letter));
  77                                         if (mh->GetNumParams(plus))
  78                                         {
  79                                                 if (i != parameters.size())
  80                                                         modes.push_back(parameters[i++]);
  81                                         }
  82                                 }
  83                         }
  84                 }
  85                 ServerInstance->Modes->Process(modes, src);
  86                 return CMD_SUCCESS;
  87         }
  88 };
  89
  90 class DummyZ : public ModeHandler
  91 {
  92  public:
  93         DummyZ(Module* parent) : ModeHandler(parent, "namebase", 'Z', PARAM_ALWAYS, MODETYPE_CHANNEL)
  94         {
  95                 list = true;
  96         }
  97 };
  98
  99 class ModuleNamedModes : public Module
 100 {
 101         CommandProp cmd;
 102         DummyZ dummyZ;
 103  public:
 104         ModuleNamedModes() : cmd(this), dummyZ(this)
 105         {
 106         }
 107
 108         void init() CXX11_OVERRIDE
 109         {
 110                 ServerInstance->Modules->AddService(cmd);
 111                 ServerInstance->Modules->AddService(dummyZ);
 112
 113                 Implementation eventlist[] = { I_OnPreMode };
 114                 ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation));
 115         }
 116
 117         Version GetVersion() CXX11_OVERRIDE
 118         {
 119                 return Version("Provides the ability to manipulate modes via long names.",VF_VENDOR);
 120         }
 121
 122         void Prioritize()
 123         {
 124                 ServerInstance->Modules->SetPriority(this, I_OnPreMode, PRIORITY_FIRST);
 125         }
 126
 127         ModResult OnPreMode(User* source, User* dest, Channel* channel, const std::vector<std::string>& parameters) CXX11_OVERRIDE
 128         {
 129                 if (!channel)
 130                         return MOD_RES_PASSTHRU;
 131                 if (parameters[1].find('Z') == std::string::npos)
 132                         return MOD_RES_PASSTHRU;
 133                 if (parameters.size() <= 2)
 134                 {
 135                         DisplayList(source, channel);
 136                         return MOD_RES_DENY;
 137                 }
 138
 139                 std::vector<std::string> newparms;
 140                 newparms.push_back(parameters[0]);
 141                 newparms.push_back(parameters[1]);
 142
 143                 std::string modelist = newparms[1];
 144                 bool adding = true;
 145                 unsigned int param_at = 2;
 146                 for(unsigned int i = 0; i < modelist.length(); i++)
 147                 {
 148                         unsigned char modechar = modelist[i];
 149                         if (modechar == '+' || modechar == '-')
 150                         {
 151                                 adding = (modechar == '+');
 152                                 continue;
 153                         }
 154                         ModeHandler *mh = ServerInstance->Modes->FindMode(modechar, MODETYPE_CHANNEL);
 155                         if (modechar == 'Z')
 156                         {
 157                                 modechar = 0;
 158                                 std::string name, value;
 159                                 if (param_at < parameters.size())
 160                                         name = parameters[param_at++];
 161                                 std::string::size_type eq = name.find('=');
 162                                 if (eq != std::string::npos)
 163                                 {
 164                                         value = name.substr(eq + 1);
 165                                         name = name.substr(0, eq);
 166                                 }
 167                                 for(char letter = 'A'; modechar == 0 && letter <= 'z'; letter++)
 168                                 {
 169                                         mh = ServerInstance->Modes->FindMode(letter, MODETYPE_CHANNEL);
 170                                         if (mh && mh->name == name)
 171                                         {
 172                                                 if (mh->GetNumParams(adding))
 173                                                 {
 174                                                         if (!value.empty())
 175                                                         {
 176                                                                 newparms.push_back(value);
 177                                                                 modechar = letter;
 178                                                                 break;
 179                                                         }
 180                                                 }
 181                                                 else
 182                                                 {
 183                                                         modechar = letter;
 184                                                         break;
 185                                                 }
 186                                         }
 187                                 }
 188                                 if (modechar)
 189                                         modelist[i] = modechar;
 190                                 else
 191                                         modelist.erase(i--, 1);
 192                         }
 193                         else if (mh && mh->GetNumParams(adding) && param_at < parameters.size())
 194                         {
 195                                 newparms.push_back(parameters[param_at++]);
 196                         }
 197                 }
 198                 newparms[1] = modelist;
 199                 ServerInstance->Modes->Process(newparms, source);
 200                 return MOD_RES_DENY;
 201         }
 202 };
 203
 204 MODULE_INIT(ModuleNamedModes)