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, 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)
  46         {
  47                 aum = new AuditoriumMode(ServerInstance);
  48                 if (!ServerInstance->Modes->AddMode(aum))
  49                 {
  50                         delete aum;
  51                         throw ModuleException("Could not add new modes!");
  52                 }
  53
  54                 OnRehash(NULL);
  55
  56                 Implementation eventlist[] = { I_OnUserJoin, I_OnUserPart, I_OnUserKick, I_OnUserQuit, I_OnNamesListItem, I_OnRehash, I_OnHostCycle };
  57                 Me->Modules->Attach(eventlist, this, 7);
  58
  59         }
  60
  61         virtual ~ModuleAuditorium()
  62         {
  63                 ServerInstance->Modes->DelMode(aum);
  64                 delete aum;
  65         }
  66
  67         virtual void OnRehash(User* user)
  68         {
  69                 ConfigReader conf(ServerInstance);
  70                 ShowOps = conf.ReadFlag("auditorium", "showops", 0);
  71                 OperOverride = conf.ReadFlag("auditorium", "operoverride", 0);
  72         }
  73
  74         virtual Version GetVersion()
  75         {
  76                 return Version("$Id$", VF_COMMON | VF_VENDOR, API_VERSION);
  77         }
  78
  79         virtual void OnNamesListItem(User* issuer, User* user, Channel* channel, std::string &prefixes, std::string &nick)
  80         {
  81                 if (!channel->IsModeSet('u'))
  82                         return;
  83
  84                 /* Some module hid this from being displayed, dont bother */
  85                 if (nick.empty())
  86                         return;
  87
  88                 /* If user is oper and operoverride is on, don't touch the list */
  89                 if (OperOverride && issuer->HasPrivPermission("channels/auspex"))
  90                         return;
  91
  92                 if (ShowOps && (issuer != user) && (channel->GetStatus(user) < STATUS_OP))
  93                 {
  94                         /* Showops is set, hide all non-ops from the user, except themselves */
  95                         nick.clear();
  96                         return;
  97                 }
  98
  99                 if (!ShowOps && (issuer != user))
 100                 {
 101                         /* ShowOps is not set, hide everyone except the user whos requesting NAMES */
 102                         nick.clear();
 103                         return;
 104                 }
 105         }
 106
 107         void WriteOverride(User* source, Channel* channel, const std::string &text)
 108         {
 109                 if (!OperOverride)
 110                         return;
 111
 112                 CUList *ulist = channel->GetUsers();
 113                 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 114                 {
 115                         if (i->first->HasPrivPermission("channels/auspex") && source != i->first)
 116                                 if (!ShowOps || (ShowOps && channel->GetStatus(i->first) < STATUS_OP))
 117                                         i->first->WriteFrom(source, "%s",text.c_str());
 118                 }
 119         }
 120
 121         virtual void OnUserJoin(User* user, Channel* channel, bool sync, bool &silent)
 122         {
 123                 if (channel->IsModeSet('u'))
 124                 {
 125                         silent = true;
 126                         /* Because we silenced the event, make sure it reaches the user whos joining (but only them of course) */
 127                         user->WriteFrom(user, "JOIN %s", channel->name.c_str());
 128                         if (ShowOps)
 129                                 channel->WriteAllExceptSender(user, false, channel->GetStatus(user) >= STATUS_OP ? 0 : '@', "JOIN %s", channel->name.c_str());
 130                         WriteOverride(user, channel, "JOIN "+channel->name);
 131                 }
 132         }
 133
 134         void OnUserPart(User* user, Channel* channel, std::string &partmessage, bool &silent)
 135         {
 136                 if (channel->IsModeSet('u'))
 137                 {
 138                         silent = true;
 139                         /* Because we silenced the event, make sure it reaches the user whos leaving (but only them of course) */
 140                         user->WriteFrom(user, "PART %s%s%s", channel->name.c_str(),
 141                                         partmessage.empty() ? "" : " :",
 142                                         partmessage.empty() ? "" : partmessage.c_str());
 143                         if (ShowOps)
 144                         {
 145                                 channel->WriteAllExceptSender(user, false, channel->GetStatus(user) >= STATUS_OP ? 0 : '@', "PART %s%s%s", channel->name.c_str(), partmessage.empty() ? "" : " :",
 146                                                 partmessage.empty() ? "" : partmessage.c_str());
 147                         }
 148                         WriteOverride(user, channel, "PART " + channel->name + (partmessage.empty() ? "" : (" :" + partmessage)));
 149                 }
 150         }
 151
 152         void OnUserKick(User* source, User* user, Channel* chan, const std::string &reason, bool &silent)
 153         {
 154                 if (chan->IsModeSet('u'))
 155                 {
 156                         silent = true;
 157                         /* Send silenced event only to the user being kicked and the user doing the kick */
 158                         source->WriteFrom(source, "KICK %s %s %s", chan->name.c_str(), user->nick.c_str(), reason.c_str());
 159                         if (ShowOps)
 160                                 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());
 161                         if ((!ShowOps) || (chan->GetStatus(user) < STATUS_OP)) /* make sure the target gets the event */
 162                                 user->WriteFrom(source, "KICK %s %s %s", chan->name.c_str(), user->nick.c_str(), reason.c_str());
 163                         WriteOverride(source, chan, "KICK " + chan->name + " " + user->nick + " " + reason);
 164                 }
 165         }
 166
 167         bool OnHostCycle(User* user)
 168         {
 169                 for (UCListIter f = user->chans.begin(); f != user->chans.end(); f++)
 170                         if (f->first->IsModeSet('u'))
 171                                 return true;
 172
 173                 return false;
 174         }
 175
 176         void OnUserQuit(User* user, const std::string &reason, const std::string &oper_message)
 177         {
 178                 Command* parthandler = ServerInstance->Parser->GetHandler("PART");
 179                 std::vector<std::string> to_leave;
 180                 if (parthandler)
 181                 {
 182                         for (UCListIter f = user->chans.begin(); f != user->chans.end(); f++)
 183                         {
 184                                 if (f->first->IsModeSet('u'))
 185                                         to_leave.push_back(f->first->name);
 186                         }
 187                         /* We cant do this neatly in one loop, as we are modifying the map we are iterating */
 188                         for (std::vector<std::string>::iterator n = to_leave.begin(); n != to_leave.end(); n++)
 189                         {
 190                                 std::vector<std::string> parameters;
 191                                 parameters.push_back(*n);
 192                                 /* This triggers our OnUserPart, above, making the PART silent */
 193                                 parthandler->Handle(parameters, user);
 194                         }
 195                 }
 196         }
 197 };
 198
 199 MODULE_INIT(ModuleAuditorium)