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         char pfx[MAXBUF];
  39         snprintf(pfx, MAXBUF, ":%s 961 %s %s", ServerInstance->Config->ServerName.c_str(), user->nick.c_str(), channel->name.c_str());
  40         user->SendText(std::string(pfx), items);
  41         user->WriteNumeric(960, "%s %s :End of mode list", user->nick.c_str(), channel->name.c_str());
  42 }
  43
  44 class CommandProp : public Command
  45 {
  46  public:
  47         CommandProp(Module* parent) : Command(parent, "PROP", 1)
  48         {
  49                 syntax = "<user|channel> {[+-]<mode> [<value>]}*";
  50         }
  51
  52         CmdResult Handle(const std::vector<std::string> &parameters, User *src)
  53         {
  54                 if (parameters.size() == 1)
  55                 {
  56                         Channel* chan = ServerInstance->FindChan(parameters[0]);
  57                         if (chan)
  58                                 DisplayList(src, chan);
  59                         return CMD_SUCCESS;
  60                 }
  61                 unsigned int i = 1;
  62                 std::vector<std::string> modes;
  63                 modes.push_back(parameters[0]);
  64                 modes.push_back("");
  65                 while (i < parameters.size())
  66                 {
  67                         std::string prop = parameters[i++];
  68                         if (prop.empty())
  69                                 continue;
  70                         bool plus = prop[0] != '-';
  71                         if (prop[0] == '+' || prop[0] == '-')
  72                                 prop.erase(prop.begin());
  73
  74                         for(char letter = 'A'; letter <= 'z'; letter++)
  75                         {
  76                                 ModeHandler* mh = ServerInstance->Modes->FindMode(letter, MODETYPE_CHANNEL);
  77                                 if (mh && mh->name == prop)
  78                                 {
  79                                         modes[1].append((plus ? "+" : "-") + std::string(1, letter));
  80                                         if (mh->GetNumParams(plus))
  81                                         {
  82                                                 if (i != parameters.size())
  83                                                         modes.push_back(parameters[i++]);
  84                                         }
  85                                 }
  86                         }
  87                 }
  88                 ServerInstance->SendGlobalMode(modes, src);
  89                 return CMD_SUCCESS;
  90         }
  91 };
  92
  93 class DummyZ : public ModeHandler
  94 {
  95  public:
  96         DummyZ(Module* parent) : ModeHandler(parent, "namebase", 'Z', PARAM_ALWAYS, MODETYPE_CHANNEL)
  97         {
  98                 list = true;
  99         }
 100 };
 101
 102 class ModuleNamedModes : public Module
 103 {
 104         CommandProp cmd;
 105         DummyZ dummyZ;
 106  public:
 107         ModuleNamedModes() : cmd(this), dummyZ(this)
 108         {
 109         }
 110
 111         void init()
 112         {
 113                 ServerInstance->Modules->AddService(cmd);
 114                 ServerInstance->Modules->AddService(dummyZ);
 115
 116                 Implementation eventlist[] = { I_OnPreMode };
 117                 ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation));
 118         }
 119
 120         Version GetVersion()
 121         {
 122                 return Version("Provides the ability to manipulate modes via long names.",VF_VENDOR);
 123         }
 124
 125         void Prioritize()
 126         {
 127                 ServerInstance->Modules->SetPriority(this, I_OnPreMode, PRIORITY_FIRST);
 128         }
 129
 130         ModResult OnPreMode(User* source, User* dest, Channel* channel, const std::vector<std::string>& parameters)
 131         {
 132                 if (!channel)
 133                         return MOD_RES_PASSTHRU;
 134                 if (parameters[1].find('Z') == std::string::npos)
 135                         return MOD_RES_PASSTHRU;
 136                 if (parameters.size() <= 2)
 137                 {
 138                         DisplayList(source, channel);
 139                         return MOD_RES_DENY;
 140                 }
 141
 142                 std::vector<std::string> newparms;
 143                 newparms.push_back(parameters[0]);
 144                 newparms.push_back(parameters[1]);
 145
 146                 std::string modelist = newparms[1];
 147                 bool adding = true;
 148                 unsigned int param_at = 2;
 149                 for(unsigned int i = 0; i < modelist.length(); i++)
 150                 {
 151                         unsigned char modechar = modelist[i];
 152                         if (modechar == '+' || modechar == '-')
 153                         {
 154                                 adding = (modechar == '+');
 155                                 continue;
 156                         }
 157                         ModeHandler *mh = ServerInstance->Modes->FindMode(modechar, MODETYPE_CHANNEL);
 158                         if (modechar == 'Z')
 159                         {
 160                                 modechar = 0;
 161                                 std::string name, value;
 162                                 if (param_at < parameters.size())
 163                                         name = parameters[param_at++];
 164                                 std::string::size_type eq = name.find('=');
 165                                 if (eq != std::string::npos)
 166                                 {
 167                                         value = name.substr(eq + 1);
 168                                         name = name.substr(0, eq);
 169                                 }
 170                                 for(char letter = 'A'; modechar == 0 && letter <= 'z'; letter++)
 171                                 {
 172                                         mh = ServerInstance->Modes->FindMode(letter, MODETYPE_CHANNEL);
 173                                         if (mh && mh->name == name)
 174                                         {
 175                                                 if (mh->GetNumParams(adding))
 176                                                 {
 177                                                         if (!value.empty())
 178                                                         {
 179                                                                 newparms.push_back(value);
 180                                                                 modechar = letter;
 181                                                                 break;
 182                                                         }
 183                                                 }
 184                                                 else
 185                                                 {
 186                                                         modechar = letter;
 187                                                         break;
 188                                                 }
 189                                         }
 190                                 }
 191                                 if (modechar)
 192                                         modelist[i] = modechar;
 193                                 else
 194                                         modelist.erase(i--, 1);
 195                         }
 196                         else if (mh && mh->GetNumParams(adding) && param_at < parameters.size())
 197                         {
 198                                 newparms.push_back(parameters[param_at++]);
 199                         }
 200                 }
 201                 newparms[1] = modelist;
 202                 ServerInstance->Modes->Process(newparms, source, false);
 203                 return MOD_RES_DENY;
 204         }
 205 };
 206
 207 MODULE_INIT(ModuleNamedModes)