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

m_inviteexception.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 "u_listmode.h"

/* $ModDesc: Provides support for the +I channel mode */
/* $ModDep: ../../include/u_listmode.h */

/*
 * Written by Om <om@inspircd.org>, April 2005.
 * Based on m_exception, which was originally based on m_chanprotect and m_silence
 *
 * The +I channel mode takes a nick!ident@host, glob patterns allowed,
 * and if a user matches an entry on the +I list then they can join the channel,
 * ignoring if +i is set on the channel
 * Now supports CIDR and IP addresses -- Brain
 */

class InspIRCd* ServerInstance;

class InviteException : public ListModeBase
{
 public:
        InviteException(InspIRCd* Instance) : ListModeBase(Instance, 'I', "End of Channel Invite Exception List", 346, 347, true) { }
};

class ModuleInviteException : public Module
{
        InviteException* ie;
public:
        ModuleInviteException(InspIRCd* Me) : Module(Me)
        {
                ie = new InviteException(ServerInstance);
                if (!ServerInstance->Modes->AddMode(ie))
                        throw ModuleException("Could not add new modes!");
                ServerInstance->Modules->PublishInterface("ChannelBanList", this);

                ie->DoImplements(this);
                Implementation eventlist[] = { I_OnRequest, I_On005Numeric, I_OnCheckInvite };
                ServerInstance->Modules->Attach(eventlist, this, 3);
        }

        virtual void On005Numeric(std::string &output)
        {
                output.append(" INVEX=I");
        }

        virtual int OnCheckInvite(User* user, Channel* chan)
        {
                if(chan != NULL)
                {
                        modelist* list;
                        chan->GetExt(ie->GetInfoKey(), list);
                        if (list)
                        {
                                std::string mask = std::string(user->nick) + "!" + user->ident + "@" + user->GetIPString();
                                for (modelist::iterator it = list->begin(); it != list->end(); it++)
                                {
                                        if(InspIRCd::Match(user->GetFullRealHost(), it->mask) || InspIRCd::Match(user->GetFullHost(), it->mask) || (InspIRCd::MatchCIDR(mask, it->mask)))
                                        {
                                                // They match an entry on the list, so let them in.
                                                return 1;
                                        }
                                }
                        }
                        // or if there wasn't a list, there can't be anyone on it, so we don't need to do anything.
                }

                return 0;
        }

        virtual const char* OnRequest(Request* request)
        {
                ListModeRequest* LM = (ListModeRequest*)request;
                if (strcmp("LM_CHECKLIST", request->GetId()) == 0)
                {
                        modelist* list;
                        LM->chan->GetExt(ie->GetInfoKey(), list);
                        if (list)
                        {
                                std::string mask = std::string(LM->user->nick) + "!" + LM->user->ident + "@" + LM->user->GetIPString();
                                for (modelist::iterator it = list->begin(); it != list->end(); it++)
                                {
                                        if (InspIRCd::Match(LM->user->GetFullRealHost(), it->mask) || InspIRCd::Match(LM->user->GetFullHost(), it->mask.c_str()) || (InspIRCd::MatchCIDR(mask, it->mask)))
                                        {
                                                // They match an entry
                                                return (char*)it->mask.c_str();
                                        }
                                }
                                return NULL;
                        }
                }
                return NULL;
        }

        virtual void OnCleanup(int target_type, void* item)
        {
                ie->DoCleanup(target_type, item);
        }

        virtual void OnSyncChannel(Channel* chan, Module* proto, void* opaque)
        {
                ie->DoSyncChannel(chan, proto, opaque);
        }

        virtual void OnChannelDelete(Channel* chan)
        {
                ie->DoChannelDelete(chan);
        }

        virtual void OnRehash(User* user, const std::string &param)
        {
                ie->DoRehash();
        }

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

        ~ModuleInviteException()
        {
                ServerInstance->Modes->DelMode(ie);
                delete ie;
                ServerInstance->Modules->UnpublishInterface("ChannelBanList", this);
        }
};

MODULE_INIT(ModuleInviteException)