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