src/modules/m_auditorium.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2009 InspIRCd Development Team
   6  * See: http://wiki.inspircd.org/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, Module* Creator) : ModeHandler(Instance, Creator, 'u', 0, 0, false, MODETYPE_CHANNEL, false, 0, '@') { }
  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                         channel->SetMode('u', adding);
  28                         return MODEACTION_ALLOW;
  29                 }
  30                 else
  31                 {
  32                         return MODEACTION_DENY;
  33                 }
  34         }
  35 };
  36
  37 class ModuleAuditorium : public Module
  38 {
  39  private:
  40         AuditoriumMode aum;
  41         bool ShowOps;
  42         bool OperOverride;
  43  public:
  44         ModuleAuditorium(InspIRCd* Me)
  45                 : Module(Me), aum(Me, this)
  46         {
  47                 if (!ServerInstance->Modes->AddMode(&aum))
  48                         throw ModuleException("Could not add new modes!");
  49
  50                 OnRehash(NULL);
  51
  52                 Implementation eventlist[] = { I_OnUserJoin, I_OnUserPart, I_OnUserKick, I_OnUserQuit, I_OnNamesListItem, I_OnRehash, I_OnHostCycle };
  53                 Me->Modules->Attach(eventlist, this, 7);
  54
  55         }
  56
  57         virtual ~ModuleAuditorium()
  58         {
  59                 ServerInstance->Modes->DelMode(&aum);
  60         }
  61
  62         virtual void OnRehash(User* user)
  63         {
  64                 ConfigReader conf(ServerInstance);
  65                 ShowOps = conf.ReadFlag("auditorium", "showops", 0);
  66                 OperOverride = conf.ReadFlag("auditorium", "operoverride", 0);
  67         }
  68
  69         virtual Version GetVersion()
  70         {
  71                 return Version("$Id$", VF_COMMON | VF_VENDOR, API_VERSION);
  72         }
  73
  74         virtual void OnNamesListItem(User* issuer, User* user, Channel* channel, std::string &prefixes, std::string &nick)
  75         {
  76                 if (!channel->IsModeSet('u'))
  77                         return;
  78
  79                 /* Some module hid this from being displayed, dont bother */
  80                 if (nick.empty())
  81                         return;
  82
  83                 /* If user is oper and operoverride is on, don't touch the list */
  84                 if (OperOverride && issuer->HasPrivPermission("channels/auspex"))
  85                         return;
  86
  87                 if (ShowOps && (issuer != user) && (channel->GetStatus(user) < STATUS_OP))
  88                 {
  89                         /* Showops is set, hide all non-ops from the user, except themselves */
  90                         nick.clear();
  91                         return;
  92                 }
  93
  94                 if (!ShowOps && (issuer != user))
  95                 {
  96                         /* ShowOps is not set, hide everyone except the user whos requesting NAMES */
  97                         nick.clear();
  98                         return;
  99                 }
 100         }
 101
 102         void WriteOverride(User* source, Channel* channel, const std::string &text)
 103         {
 104                 if (!OperOverride)
 105                         return;
 106
 107                 CUList *ulist = channel->GetUsers();
 108                 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 109                 {
 110                         if (i->first->HasPrivPermission("channels/auspex") && source != i->first)
 111                                 if (!ShowOps || (ShowOps && channel->GetStatus(i->first) < STATUS_OP))
 112                                         i->first->WriteFrom(source, "%s",text.c_str());
 113                 }
 114         }
 115
 116         virtual void OnUserJoin(User* user, Channel* channel, bool sync, bool &silent, bool created)
 117         {
 118                 if (channel->IsModeSet('u'))
 119                 {
 120                         silent = true;
 121                         /* Because we silenced the event, make sure it reaches the user whos joining (but only them of course) */
 122                         user->WriteFrom(user, "JOIN %s", channel->name.c_str());
 123                         if (ShowOps)
 124                                 channel->WriteAllExceptSender(user, false, channel->GetStatus(user) >= STATUS_OP ? 0 : '@', "JOIN %s", channel->name.c_str());
 125                         WriteOverride(user, channel, "JOIN "+channel->name);
 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->WriteAllExceptSender(user, false, channel->GetStatus(user) >= STATUS_OP ? 0 : '@', "PART %s%s%s", channel->name.c_str(), partmessage.empty() ? "" : " :",
 141                                                 partmessage.empty() ? "" : partmessage.c_str());
 142                         }
 143                         WriteOverride(user, channel, "PART " + channel->name + (partmessage.empty() ? "" : (" :" + partmessage)));
 144                 }
 145         }
 146
 147         void OnUserKick(User* source, User* user, Channel* chan, const std::string &reason, bool &silent)
 148         {
 149                 if (chan->IsModeSet('u'))
 150                 {
 151                         silent = true;
 152                         /* Send silenced event only to the user being kicked and the user doing the kick */
 153                         source->WriteFrom(source, "KICK %s %s %s", chan->name.c_str(), user->nick.c_str(), reason.c_str());
 154                         if (ShowOps)
 155                                 chan->WriteAllExceptSender(source, false, chan->GetStatus(user) >= STATUS_OP ? 0 : '@', "KICK %s %s %s", chan->name.c_str(), user->nick.c_str(), reason.c_str());
 156                         if ((!ShowOps) || (chan->GetStatus(user) < STATUS_OP)) /* make sure the target gets the event */
 157                                 user->WriteFrom(source, "KICK %s %s %s", chan->name.c_str(), user->nick.c_str(), reason.c_str());
 158                         WriteOverride(source, chan, "KICK " + chan->name + " " + user->nick + " " + reason);
 159                 }
 160         }
 161
 162         bool OnHostCycle(User* user)
 163         {
 164                 for (UCListIter f = user->chans.begin(); f != user->chans.end(); f++)
 165                         if (f->first->IsModeSet('u'))
 166                                 return true;
 167
 168                 return false;
 169         }
 170
 171         void OnUserQuit(User* user, const std::string &reason, const std::string &oper_message)
 172         {
 173                 Command* parthandler = ServerInstance->Parser->GetHandler("PART");
 174                 std::vector<std::string> to_leave;
 175                 if (parthandler)
 176                 {
 177                         for (UCListIter f = user->chans.begin(); f != user->chans.end(); f++)
 178                         {
 179                                 if (f->first->IsModeSet('u'))
 180                                         to_leave.push_back(f->first->name);
 181                         }
 182                         /* We cant do this neatly in one loop, as we are modifying the map we are iterating */
 183                         for (std::vector<std::string>::iterator n = to_leave.begin(); n != to_leave.end(); n++)
 184                         {
 185                                 std::vector<std::string> parameters;
 186                                 parameters.push_back(*n);
 187                                 /* This triggers our OnUserPart, above, making the PART silent */
 188                                 parthandler->Handle(parameters, user);
 189                         }
 190                 }
 191         }
 192 };
 193
 194 MODULE_INIT(ModuleAuditorium)