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m_noctcp.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"

/* $ModDesc: Provides support for unreal-style channel mode +C */

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

        ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string &parameter, bool adding, bool)
        {
                if (adding)
                {
                        if (!channel->IsModeSet('C'))
                        {
                                channel->SetMode('C',true);
                                return MODEACTION_ALLOW;
                        }
                }
                else
                {
                        if (channel->IsModeSet('C'))
                        {
                                channel->SetMode('C',false);
                                return MODEACTION_ALLOW;
                        }
                }

                return MODEACTION_DENY;
        }
};

class ModuleNoCTCP : public Module
{

        NoCTCP* nc;

 public:

        ModuleNoCTCP(InspIRCd* Me)
                : Module(Me)
        {

                nc = new NoCTCP(ServerInstance);
                if (!ServerInstance->Modes->AddMode(nc))
                        throw ModuleException("Could not add new modes!");
                Implementation eventlist[] = { I_OnUserPreMessage, I_OnUserPreNotice, I_On005Numeric };
                ServerInstance->Modules->Attach(eventlist, this, 2);
        }

        virtual ~ModuleNoCTCP()
        {
                ServerInstance->Modes->DelMode(nc);
                delete nc;
        }

        virtual Version GetVersion()
        {
                return Version("$Id: m_noctcp.cpp 10291 2008-08-25 20:35:51Z w00t $", VF_COMMON | VF_VENDOR, API_VERSION);
        }

        virtual int OnUserPreMessage(User* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list)
        {
                return OnUserPreNotice(user,dest,target_type,text,status,exempt_list);
        }

        virtual int OnUserPreNotice(User* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list)
        {
                if ((target_type == TYPE_CHANNEL) && (IS_LOCAL(user)))
                {
                        Channel* c = (Channel*)dest;

                        if (CHANOPS_EXEMPT(ServerInstance, 'C') && c->GetStatus(user) == STATUS_OP)
                        {
                                return 0;
                        }

                        if (c->IsModeSet('C') || c->IsExtBanned(user, 'C'))
                        {
                                if ((text.length()) && (text[0] == '\1'))
                                {
                                        if (strncmp(text.c_str(),"\1ACTION ",8))
                                        {
                                                user->WriteNumeric(ERR_NOCTCPALLOWED, "%s %s :Can't send CTCP to channel (+C set)",user->nick.c_str(), c->name.c_str());
                                                return 1;
                                        }
                                }
                        }
                }
                return 0;
        }

        virtual void On005Numeric(std::string &output)
        {
                ServerInstance->AddExtBanChar('C');
        }
};

MODULE_INIT(ModuleNoCTCP)