src/modules/m_permchannels.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2008 InspIRCd Development Team
   6  * See: http://www.inspircd.org/wiki/index.php/Credits
   7  *
   8  * This program is free but copyrighted software; see
   9  *            the file COPYING for details.
  10  *
  11  * ---------------------------------------------------
  12  */
  13
  14 #include "inspircd.h"
  15
  16 /* $ModDesc: Provides support for channel mode +P to provide permanent channels */
  17
  18
  19 /** Handles the +P channel mode
  20  */
  21 class PermChannel : public ModeHandler
  22 {
  23  public:
  24         PermChannel(InspIRCd* Instance) : ModeHandler(Instance, 'P', 0, 0, false, MODETYPE_CHANNEL, false) { }
  25
  26         ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string &parameter, bool adding, bool)
  27         {
  28                 if (adding)
  29                 {
  30                         if (!channel->IsModeSet('P'))
  31                         {
  32                                 channel->SetMode('P',true);
  33                                 return MODEACTION_ALLOW;
  34                         }
  35                 }
  36                 else
  37                 {
  38                         if (channel->IsModeSet('P'))
  39                         {
  40                                 channel->SetMode('P',false);
  41
  42                                 if (channel->GetUserCounter() == 0)
  43                                         delete channel;
  44                                 return MODEACTION_ALLOW;
  45                         }
  46                 }
  47
  48                 return MODEACTION_DENY;
  49         }
  50 };
  51
  52 class ModulePermanentChannels : public Module
  53 {
  54         PermChannel *p;
  55 public:
  56
  57         ModulePermanentChannels(InspIRCd* Me) : Module(Me)
  58         {
  59                 p = new PermChannel(ServerInstance);
  60                 if (!ServerInstance->Modes->AddMode(p))
  61                 {
  62                         delete p;
  63                         throw ModuleException("Could not add new modes!");
  64                 }
  65                 Implementation eventlist[] = { I_OnChannelPreDelete };
  66                 ServerInstance->Modules->Attach(eventlist, this, 1);
  67
  68                 OnRehash(NULL, "");
  69         }
  70
  71         virtual ~ModulePermanentChannels()
  72         {
  73                 ServerInstance->Modes->DelMode(p);
  74                 delete p;
  75         }
  76
  77         virtual void OnRehash(User *user, const std::string &parameter)
  78         {
  79                 /*
  80                  * Process config-defined list of permanent channels.
  81                  * -- w00t
  82                  */
  83                 ConfigReader MyConf(ServerInstance);
  84                 for (int i = 0; i < MyConf.Enumerate("permchannels"); i++)
  85                 {
  86                         std::string channel = MyConf.ReadValue("permchannels", "channel", i);
  87                         std::string topic = MyConf.ReadValue("permchannels", "topic", i);
  88                         std::string modes = MyConf.ReadValue("permchannels", "modes", i);
  89
  90                         if (channel.empty() || topic.empty())
  91                         {
  92                                 ServerInstance->Logs->Log("blah", DEBUG, "Malformed permchannels tag with empty topic or channel name.");
  93                                 continue;
  94                         }
  95
  96                         Channel *c = ServerInstance->FindChan(channel);
  97
  98                         if (!c)
  99                         {
 100                                 c = new Channel(ServerInstance, channel, ServerInstance->Time());
 101                                 c->SetTopic(NULL, topic, true);
 102                                 ServerInstance->Logs->Log("blah", DEBUG, "Added %s with topic %s", channel.c_str(), topic.c_str());
 103
 104                                 if (modes.empty())
 105                                         continue;
 106
 107                                 irc::spacesepstream list(modes);
 108                                 std::string modeseq;
 109                                 std::string par;
 110
 111                                 list.GetToken(modeseq);
 112
 113                                 // XXX bleh, should we pass this to the mode parser instead? ugly. --w00t
 114                                 for (std::string::iterator n = modeseq.begin(); n != modeseq.end(); ++n)
 115                                 {
 116                                         ModeHandler* mode = ServerInstance->Modes->FindMode(*n, MODETYPE_CHANNEL);
 117                                         if (mode)
 118                                         {
 119                                                 if (mode->GetNumParams(true))
 120                                                         list.GetToken(par);
 121                                                 else
 122                                                         par.clear();
 123
 124                                                 mode->OnModeChange(ServerInstance->FakeClient, ServerInstance->FakeClient, c, par, true);
 125                                         }
 126                                 }
 127                         }
 128                 }
 129         }
 130
 131         virtual Version GetVersion()
 132         {
 133                 return Version("$Id$",VF_COMMON|VF_VENDOR,API_VERSION);
 134         }
 135
 136         virtual int OnChannelPreDelete(Channel *c)
 137         {
 138                 if (c->IsModeSet('P'))
 139                         return 1;
 140
 141                 return 0;
 142         }
 143 };
 144
 145 MODULE_INIT(ModulePermanentChannels)