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home » brain » inspircd-cvs » 1_1_stable » src » modules

m_auditorium.cpp

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/*       +------------------------------------+
 *       | Inspire Internet Relay Chat Daemon |
 *       +------------------------------------+
 *
 *  InspIRCd: (C) 2002-2008 InspIRCd Development Team
 * See: http://www.inspircd.org/wiki/index.php/Credits
 *
 * This program is free but copyrighted software; see
 *            the file COPYING for details.
 *
 * ---------------------------------------------------
 */

#include "inspircd.h"
#include "users.h"
#include "channels.h"
#include "modules.h"

/* $ModDesc: Allows for auditorium channels (+u) where nobody can see others joining and parting or the nick list */

class AuditoriumMode : public ModeHandler
{
 public:
        AuditoriumMode(InspIRCd* Instance) : ModeHandler(Instance, 'u', 0, 0, false, MODETYPE_CHANNEL, false) { }

        ModeAction OnModeChange(userrec* source, userrec* dest, chanrec* channel, std::string &parameter, bool adding)
        {
                if (channel->IsModeSet('u') != adding)
                {
                        if (IS_LOCAL(source) && (channel->GetStatus(source) < STATUS_OP))
                        {
                                source->WriteServ("482 %s %s :Only channel operators may %sset channel mode +u", source->nick, channel->name, adding ? "" : "un");
                                return MODEACTION_DENY;
                        }
                        else
                        {
                                channel->SetMode('u', adding);
                                return MODEACTION_ALLOW;
                        }
                }
                else
                {
                        return MODEACTION_DENY;
                }
        }
};

class ModuleAuditorium : public Module
{
 private:
        AuditoriumMode* aum;
        bool ShowOps;
        CUList nl;
 public:
        ModuleAuditorium(InspIRCd* Me)
                : Module(Me)
        {
                aum = new AuditoriumMode(ServerInstance);
                if (!ServerInstance->AddMode(aum, 'u'))
                {
                        delete aum;
                        throw ModuleException("Could not add new modes!");
                }
                OnRehash(NULL, "");
        }
        
        virtual ~ModuleAuditorium()
        {
                ServerInstance->Modes->DelMode(aum);
                DELETE(aum);
        }

        virtual void OnRehash(userrec* user, const std::string &parameter)
        {
                ConfigReader conf(ServerInstance);
                ShowOps = conf.ReadFlag("auditorium", "showops", 0);
        }

        Priority Prioritize()
        {
                /* To ensure that we get priority over namesx for names list generation on +u channels */
                return PRIORITY_FIRST;
        }

        virtual Version GetVersion()
        {
                return Version(1, 1, 0, 0, VF_COMMON | VF_VENDOR, API_VERSION);
        }

        void Implements(char* List)
        {
                List[I_OnUserJoin] = List[I_OnUserPart] = List[I_OnUserKick] = List[I_OnUserQuit] = List[I_OnUserList] = List[I_OnRehash] = 1;
        }

        virtual int OnUserList(userrec* user, chanrec* Ptr, CUList* &nameslist)
        {
                if (Ptr->IsModeSet('u'))
                {
                        ServerInstance->Log(DEBUG,"AUDITORIUM: nameslist: %08lx", nameslist);
                        if (ShowOps)
                        {
                                /* Leave the names list alone, theyre an op
                                 * doing /names on the channel after joining it
                                 */
                                if (Ptr->GetStatus(user) >= STATUS_OP)
                                {
                                        nameslist = Ptr->GetUsers();
                                        ServerInstance->Log(DEBUG,"AUDITORIUM: new nameslist: %08lx", nameslist);
                                        return 0;
                                }

                                /* Show all the opped users */
                                nl = *(Ptr->GetOppedUsers());
                                nl[user] = user->nick;
                                nameslist = &nl;
                                ServerInstance->Log(DEBUG,"AUDITORIUM: new nameslist: %08lx", nameslist);
                                return 0;
                        }
                        else
                        {
                                /* HELLOOO, IS ANYBODY THERE? -- nope, just us. */
                                user->WriteServ("353 %s %c %s :%s", user->nick, Ptr->IsModeSet('s') ? '@' : Ptr->IsModeSet('p') ? '*' : '=', Ptr->name, user->nick);
                                user->WriteServ("366 %s %s :End of /NAMES list.", user->nick, Ptr->name);
                                return 1;
                        }
                }
                return 0;
        }
        
        virtual void OnUserJoin(userrec* user, chanrec* channel, bool &silent)
        {
                if (channel->IsModeSet('u'))
                {
                        silent = true;
                        /* Because we silenced the event, make sure it reaches the user whos joining (but only them of course) */
                        user->WriteFrom(user, "JOIN %s", channel->name);
                        if (ShowOps)
                                channel->WriteAllExceptSender(user, false, channel->GetStatus(user) >= STATUS_OP ? 0 : '@', "JOIN %s", channel->name);
                }
        }

        void OnUserPart(userrec* user, chanrec* channel, const std::string &partmessage, bool &silent)
        {
                if (channel->IsModeSet('u'))
                {
                        silent = true;
                        /* Because we silenced the event, make sure it reaches the user whos leaving (but only them of course) */
                        user->WriteFrom(user, "PART %s%s%s", channel->name,
                                        partmessage.empty() ? "" : " :",
                                        partmessage.empty() ? "" : partmessage.c_str());
                        if (ShowOps)
                        {
                                channel->WriteAllExceptSender(user, false, channel->GetStatus(user) >= STATUS_OP ? 0 : '@', "PART %s%s%s", channel->name, partmessage.empty() ? "" : " :",
                                                partmessage.empty() ? "" : partmessage.c_str());
                        }
                }
        }

        void OnUserKick(userrec* source, userrec* user, chanrec* chan, const std::string &reason, bool &silent)
        {
                if (chan->IsModeSet('u'))
                {
                        silent = true;
                        /* Send silenced event only to the user being kicked and the user doing the kick */
                        source->WriteFrom(source, "KICK %s %s %s", chan->name, user->nick, reason.c_str());
                        if (ShowOps)
                                chan->WriteAllExceptSender(source, false, chan->GetStatus(user) >= STATUS_OP ? 0 : '@', "KICK %s %s %s", chan->name, user->nick, reason.c_str());
                        if ((!ShowOps) || (chan->GetStatus(user) < STATUS_OP)) /* make sure the kicked user always gets the message */
                                user->WriteFrom(source, "KICK %s %s %s", chan->name, user->nick, reason.c_str());
                }
        }

        void OnUserQuit(userrec* user, const std::string &reason, const std::string &oper_message)
        {
                command_t* parthandler = ServerInstance->Parser->GetHandler("PART");
                std::vector<std::string> to_leave;
                const char* parameters[2];
                if (parthandler)
                {
                        for (UCListIter f = user->chans.begin(); f != user->chans.end(); f++)
                        {
                                if (f->first->IsModeSet('u'))
                                        to_leave.push_back(f->first->name);
                        }
                        /* We cant do this neatly in one loop, as we are modifying the map we are iterating */
                        for (std::vector<std::string>::iterator n = to_leave.begin(); n != to_leave.end(); n++)
                        {
                                parameters[0] = n->c_str();
                                /* This triggers our OnUserPart, above, making the PART silent */
                                parthandler->Handle(parameters, 1, user);
                        }
                }
        }
};

MODULE_INIT(ModuleAuditorium)