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) : 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  public:
  52         ModuleAuditorium(InspIRCd* Me)
  53                 : Module(Me)
  54         {
  55                 aum = new AuditoriumMode(ServerInstance);
  56                 if (!ServerInstance->Modes->AddMode(aum))
  57                 {
  58                         delete aum;
  59                         throw ModuleException("Could not add new modes!");
  60                 }
  61
  62                 OnRehash(NULL);
  63
  64                 Implementation eventlist[] = { I_OnUserJoin, I_OnUserPart, I_OnUserKick, I_OnUserQuit, I_OnNamesListItem, I_OnRehash, I_OnHostCycle };
  65                 Me->Modules->Attach(eventlist, this, 7);
  66
  67         }
  68
  69         virtual ~ModuleAuditorium()
  70         {
  71                 ServerInstance->Modes->DelMode(aum);
  72                 delete aum;
  73         }
  74
  75         virtual void OnRehash(User* user)
  76         {
  77                 ConfigReader conf(ServerInstance);
  78                 ShowOps = conf.ReadFlag("auditorium", "showops", 0);
  79                 OperOverride = conf.ReadFlag("auditorium", "operoverride", 0);
  80         }
  81
  82         virtual Version GetVersion()
  83         {
  84                 return Version("$Id$", VF_COMMON | VF_VENDOR, API_VERSION);
  85         }
  86
  87         virtual void OnNamesListItem(User* issuer, User* user, Channel* channel, std::string &prefixes, std::string &nick)
  88         {
  89                 if (!channel->IsModeSet('u'))
  90                         return;
  91
  92                 /* Some module hid this from being displayed, dont bother */
  93                 if (nick.empty())
  94                         return;
  95
  96                 /* If user is oper and operoverride is on, don't touch the list */
  97                 if (OperOverride && issuer->HasPrivPermission("channels/auspex"))
  98                         return;
  99
 100                 if (ShowOps && (issuer != user) && (channel->GetStatus(user) < STATUS_OP))
 101                 {
 102                         /* Showops is set, hide all non-ops from the user, except themselves */
 103                         nick.clear();
 104                         return;
 105                 }
 106
 107                 if (!ShowOps && (issuer != user))
 108                 {
 109                         /* ShowOps is not set, hide everyone except the user whos requesting NAMES */
 110                         nick.clear();
 111                         return;
 112                 }
 113         }
 114
 115         void WriteOverride(User* source, Channel* channel, const std::string &text)
 116         {
 117                 if (!OperOverride)
 118                         return;
 119
 120                 CUList *ulist = channel->GetUsers();
 121                 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 122                 {
 123                         if (i->first->HasPrivPermission("channels/auspex") && source != i->first)
 124                                 if (!ShowOps || (ShowOps && channel->GetStatus(i->first) < STATUS_OP))
 125                                         i->first->WriteFrom(source, "%s",text.c_str());
 126                 }
 127         }
 128
 129         virtual void OnUserJoin(User* user, Channel* channel, bool sync, 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 joining (but only them of course) */
 135                         user->WriteFrom(user, "JOIN %s", channel->name.c_str());
 136                         if (ShowOps)
 137                                 channel->WriteAllExceptSender(user, false, channel->GetStatus(user) >= STATUS_OP ? 0 : '@', "JOIN %s", channel->name.c_str());
 138                         WriteOverride(user, channel, "JOIN "+channel->name);
 139                 }
 140         }
 141
 142         void OnUserPart(User* user, Channel* channel, std::string &partmessage, bool &silent)
 143         {
 144                 if (channel->IsModeSet('u'))
 145                 {
 146                         silent = true;
 147                         /* Because we silenced the event, make sure it reaches the user whos leaving (but only them of course) */
 148                         user->WriteFrom(user, "PART %s%s%s", channel->name.c_str(),
 149                                         partmessage.empty() ? "" : " :",
 150                                         partmessage.empty() ? "" : partmessage.c_str());
 151                         if (ShowOps)
 152                         {
 153                                 channel->WriteAllExceptSender(user, false, channel->GetStatus(user) >= STATUS_OP ? 0 : '@', "PART %s%s%s", channel->name.c_str(), partmessage.empty() ? "" : " :",
 154                                                 partmessage.empty() ? "" : partmessage.c_str());
 155                         }
 156                         WriteOverride(user, channel, "PART " + channel->name + (partmessage.empty() ? "" : (" :" + partmessage)));
 157                 }
 158         }
 159
 160         void OnUserKick(User* source, User* user, Channel* chan, const std::string &reason, bool &silent)
 161         {
 162                 if (chan->IsModeSet('u'))
 163                 {
 164                         silent = true;
 165                         /* Send silenced event only to the user being kicked and the user doing the kick */
 166                         source->WriteFrom(source, "KICK %s %s %s", chan->name.c_str(), user->nick.c_str(), reason.c_str());
 167                         if (ShowOps)
 168                                 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());
 169                         if ((!ShowOps) || (chan->GetStatus(user) < STATUS_OP)) /* make sure the target gets the event */
 170                                 user->WriteFrom(source, "KICK %s %s %s", chan->name.c_str(), user->nick.c_str(), reason.c_str());
 171                         WriteOverride(source, chan, "KICK " + chan->name + " " + user->nick + " " + reason);
 172                 }
 173         }
 174
 175         bool OnHostCycle(User* user)
 176         {
 177                 for (UCListIter f = user->chans.begin(); f != user->chans.end(); f++)
 178                         if (f->first->IsModeSet('u'))
 179                                 return true;
 180
 181                 return false;
 182         }
 183
 184         void OnUserQuit(User* user, const std::string &reason, const std::string &oper_message)
 185         {
 186                 Command* parthandler = ServerInstance->Parser->GetHandler("PART");
 187                 std::vector<std::string> to_leave;
 188                 if (parthandler)
 189                 {
 190                         for (UCListIter f = user->chans.begin(); f != user->chans.end(); f++)
 191                         {
 192                                 if (f->first->IsModeSet('u'))
 193                                         to_leave.push_back(f->first->name);
 194                         }
 195                         /* We cant do this neatly in one loop, as we are modifying the map we are iterating */
 196                         for (std::vector<std::string>::iterator n = to_leave.begin(); n != to_leave.end(); n++)
 197                         {
 198                                 std::vector<std::string> parameters;
 199                                 parameters.push_back(*n);
 200                                 /* This triggers our OnUserPart, above, making the PART silent */
 201                                 parthandler->Handle(parameters, user);
 202                         }
 203                 }
 204         }
 205 };
 206
 207 MODULE_INIT(ModuleAuditorium)