include/modules/cap.h

   1 /*
   2  * InspIRCd -- Internet Relay Chat Daemon
   3  *
   4  *   Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
   5  *   Copyright (C) 2008 Craig Edwards <craigedwards@brainbox.cc>
   6  *
   7  * This file is part of InspIRCd.  InspIRCd is free software: you can
   8  * redistribute it and/or modify it under the terms of the GNU General Public
   9  * License as published by the Free Software Foundation, version 2.
  10  *
  11  * This program is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  13  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
  14  * details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20
  21 #pragma once
  22
  23 class CapEvent : public Event
  24 {
  25  public:
  26         enum CapEventType
  27         {
  28                 CAPEVENT_REQ,
  29                 CAPEVENT_LS,
  30                 CAPEVENT_LIST,
  31                 CAPEVENT_CLEAR
  32         };
  33
  34         CapEventType type;
  35         std::vector<std::string> wanted;
  36         std::vector<std::string> ack;
  37         User* user;
  38         CapEvent(Module* sender, User* u, CapEventType capevtype) : Event(sender, "cap_request"), type(capevtype), user(u) {}
  39 };
  40
  41 class GenericCap
  42 {
  43         bool active;
  44
  45  public:
  46         LocalIntExt ext;
  47         const std::string cap;
  48         GenericCap(Module* parent, const std::string& Cap)
  49                 : active(true)
  50                 , ext("cap_" + Cap, ExtensionItem::EXT_USER, parent)
  51                 , cap(Cap)
  52         {
  53         }
  54
  55         void HandleEvent(Event& ev)
  56         {
  57                 if (ev.id != "cap_request")
  58                         return;
  59
  60                 if (!active)
  61                         return;
  62
  63                 CapEvent *data = static_cast<CapEvent*>(&ev);
  64                 if (data->type == CapEvent::CAPEVENT_REQ)
  65                 {
  66                         for (std::vector<std::string>::iterator it = data->wanted.begin(); it != data->wanted.end(); ++it)
  67                         {
  68                                 if (it->empty())
  69                                         continue;
  70                                 bool enablecap = ((*it)[0] != '-');
  71                                 if (((enablecap) && (*it == cap)) || (*it == "-" + cap))
  72                                 {
  73                                         // we can handle this, so ACK it, and remove it from the wanted list
  74                                         data->ack.push_back(*it);
  75                                         data->wanted.erase(it);
  76                                         ext.set(data->user, enablecap ? 1 : 0);
  77                                         break;
  78                                 }
  79                         }
  80                 }
  81                 else if (data->type == CapEvent::CAPEVENT_LS)
  82                 {
  83                         data->wanted.push_back(cap);
  84                 }
  85                 else if (data->type == CapEvent::CAPEVENT_LIST)
  86                 {
  87                         if (ext.get(data->user))
  88                                 data->wanted.push_back(cap);
  89                 }
  90                 else if (data->type == CapEvent::CAPEVENT_CLEAR)
  91                 {
  92                         data->ack.push_back("-" + cap);
  93                         ext.set(data->user, 0);
  94                 }
  95         }
  96
  97         void SetActive(bool newstate) { active = newstate; }
  98         bool IsActive() const { return active; }
  99 };