src/modules/m_auditorium.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: Allows for auditorium channels (+u) where nobody can see others joining and parting or the nick list */
  17
  18 class AuditoriumMode : public ModeHandler
  19 {
  20  public:
  21         AuditoriumMode(InspIRCd* Instance) : ModeHandler(Instance, 'u', 0, 0, false, MODETYPE_CHANNEL, false) { }
  22
  23         ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string &parameter, bool adding, bool)
  24         {
  25                 if (channel->IsModeSet('u') != adding)
  26                 {
  27                         if (IS_LOCAL(source) && (channel->GetStatus(source) < STATUS_OP))
  28                         {
  29                                 source->WriteNumeric(ERR_CHANOPRIVSNEEDED, "%s %s :Only channel operators may %sset channel mode +u", source->nick.c_str(), channel->name.c_str(), adding ? "" : "un");
  30                                 return MODEACTION_DENY;
  31                         }
  32                         else
  33                         {
  34                                 channel->SetMode('u', adding);
  35                                 return MODEACTION_ALLOW;
  36                         }
  37                 }
  38                 else
  39                 {
  40                         return MODEACTION_DENY;
  41                 }
  42         }
  43 };
  44
  45 class ModuleAuditorium : public Module
  46 {
  47  private:
  48         AuditoriumMode* aum;
  49         bool ShowOps;
  50         bool OperOverride;
  51         CUList nl;
  52         CUList except_list;
  53  public:
  54         ModuleAuditorium(InspIRCd* Me)
  55                 : Module(Me)
  56         {
  57                 aum = new AuditoriumMode(ServerInstance);
  58                 if (!ServerInstance->Modes->AddMode(aum))
  59                 {
  60                         delete aum;
  61                         throw ModuleException("Could not add new modes!");
  62                 }
  63
  64                 OnRehash(NULL, "");
  65
  66                 Implementation eventlist[] = { I_OnUserJoin, I_OnUserPart, I_OnUserKick, I_OnUserQuit, I_OnNamesListItem, I_OnRehash, I_OnHostCycle };
  67                 Me->Modules->Attach(eventlist, this, 7);
  68
  69         }
  70
  71         virtual ~ModuleAuditorium()
  72         {
  73                 ServerInstance->Modes->DelMode(aum);
  74                 delete aum;
  75         }
  76
  77         virtual void OnRehash(User* user, const std::string &parameter)
  78         {
  79                 ConfigReader conf(ServerInstance);
  80                 ShowOps = conf.ReadFlag("auditorium", "showops", 0);
  81                 OperOverride = conf.ReadFlag("auditorium", "operoverride", 0);
  82         }
  83
  84         virtual Version GetVersion()
  85         {
  86                 return Version("$Id$", VF_COMMON | VF_VENDOR, API_VERSION);
  87         }
  88
  89         virtual void OnNamesListItem(User* issuer, User* user, Channel* channel, std::string &prefixes, std::string &nick)
  90         {
  91                 if (!channel->IsModeSet('u'))
  92                         return;
  93
  94                 /* Some module hid this from being displayed, dont bother */
  95                 if (nick.empty())
  96                         return;
  97
  98                 /* If user is oper and operoverride is on, don't touch the list */
  99                 if (OperOverride && user->HasPrivPermission("channels/auspex"))
 100                         return;
 101
 102                 if (ShowOps && (issuer != user) && (channel->GetStatus(user) < STATUS_OP))
 103                 {
 104                         /* Showops is set, hide all non-ops from the user, except themselves */
 105                         nick.clear();
 106                         return;
 107                 }
 108
 109                 if (!ShowOps && (issuer != user))
 110                 {
 111                         /* ShowOps is not set, hide everyone except the user whos requesting NAMES */
 112                         nick.clear();
 113                         return;
 114                 }
 115         }
 116
 117         virtual void OnUserJoin(User* user, Channel* channel, bool sync, bool &silent)
 118         {
 119                 if (channel->IsModeSet('u'))
 120                 {
 121                         silent = true;
 122                         /* Because we silenced the event, make sure it reaches the user whos joining (but only them of course) */
 123                         user->WriteFrom(user, "JOIN %s", channel->name.c_str());
 124                         if (ShowOps)
 125                                 channel->WriteAllExcept(user, false, channel->GetStatus(user) >= STATUS_OP ? 0 : '@', except_list, "JOIN %s", channel->name.c_str());
 126                 }
 127         }
 128
 129         void OnUserPart(User* user, Channel* channel, std::string &partmessage, bool &silent)
 130         {
 131                 if (channel->IsModeSet('u'))
 132                 {
 133                         silent = true;
 134                         /* Because we silenced the event, make sure it reaches the user whos leaving (but only them of course) */
 135                         user->WriteFrom(user, "PART %s%s%s", channel->name.c_str(),
 136                                         partmessage.empty() ? "" : " :",
 137                                         partmessage.empty() ? "" : partmessage.c_str());
 138                         if (ShowOps)
 139                         {
 140                                 channel->WriteAllExcept(user, false, channel->GetStatus(user) >= STATUS_OP ? 0 : '@', except_list, "PART %s%s%s", channel->name.c_str(), partmessage.empty() ? "" : " :",
 141                                                 partmessage.empty() ? "" : partmessage.c_str());
 142                         }
 143                 }
 144         }
 145
 146         void OnUserKick(User* source, User* user, Channel* chan, const std::string &reason, bool &silent)
 147         {
 148                 if (chan->IsModeSet('u'))
 149                 {
 150                         silent = true;
 151                         /* Send silenced event only to the user being kicked and the user doing the kick */
 152                         source->WriteFrom(source, "KICK %s %s %s", chan->name.c_str(), user->nick.c_str(), reason.c_str());
 153                         if (ShowOps)
 154                                 chan->WriteAllExcept(source, false, chan->GetStatus(source) >= STATUS_OP ? 0 : '@', except_list, "KICK %s %s %s", chan->name.c_str(), user->nick.c_str(), reason.c_str());
 155                         else
 156                                 user->WriteFrom(source, "KICK %s %s %s", chan->name.c_str(), user->nick.c_str(), reason.c_str());
 157                 }
 158         }
 159
 160         bool OnHostCycle(User* user)
 161         {
 162                 for (UCListIter f = user->chans.begin(); f != user->chans.end(); f++)
 163                         if (f->first->IsModeSet('u'))
 164                                 return true;
 165
 166                 return false;
 167         }
 168
 169         void OnUserQuit(User* user, const std::string &reason, const std::string &oper_message)
 170         {
 171                 Command* parthandler = ServerInstance->Parser->GetHandler("PART");
 172                 std::vector<std::string> to_leave;
 173                 if (parthandler)
 174                 {
 175                         for (UCListIter f = user->chans.begin(); f != user->chans.end(); f++)
 176                         {
 177                                 if (f->first->IsModeSet('u'))
 178                                         to_leave.push_back(f->first->name);
 179                         }
 180                         /* We cant do this neatly in one loop, as we are modifying the map we are iterating */
 181                         for (std::vector<std::string>::iterator n = to_leave.begin(); n != to_leave.end(); n++)
 182                         {
 183                                 std::vector<std::string> parameters;
 184                                 parameters.push_back(*n);
 185                                 /* This triggers our OnUserPart, above, making the PART silent */
 186                                 parthandler->Handle(parameters, user);
 187                         }
 188                 }
 189         }
 190 };
 191
 192 MODULE_INIT(ModuleAuditorium)