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home » brain » inspircd-cvs » inspircd » src » modes

cmode_b.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 <string>
#include <vector>
#include "inspircd_config.h"
#include "configreader.h"
#include "hash_map.h"
#include "mode.h"
#include "channels.h"
#include "users.h"
#include "modules.h"
#include "inspstring.h"
#include "hashcomp.h"
#include "modes/cmode_b.h"

ModeChannelBan::ModeChannelBan(InspIRCd* Instance) : ModeHandler(Instance, 'b', 1, 1, true, MODETYPE_CHANNEL, false)
{
}

ModeAction ModeChannelBan::OnModeChange(User* source, User*, Channel* channel, std::string &parameter, bool adding, bool servermode)
{
        int status = channel->GetStatus(source);
        /* Call the correct method depending on wether we're adding or removing the mode */
        if (adding)
        {
                parameter = this->AddBan(source, parameter, channel, status, servermode);
        }
        else
        {
                parameter = this->DelBan(source, parameter, channel, status);
        }
        /* If the method above 'ate' the parameter by reducing it to an empty string, then
         * it won't matter wether we return ALLOW or DENY here, as an empty string overrides
         * the return value and is always MODEACTION_DENY if the mode is supposed to have
         * a parameter.
         */
        return MODEACTION_ALLOW;
}

void ModeChannelBan::RemoveMode(Channel* channel, irc::modestacker* stack)
{
        BanList copy;

        for (BanList::iterator i = channel->bans.begin(); i != channel->bans.end(); i++)
        {
                copy.push_back(*i);
        }

        for (BanList::iterator i = copy.begin(); i != copy.end(); i++)
        {
                if (stack)
                {
                        stack->Push(this->GetModeChar(), i->data);
                }
                else
                {
                        std::vector<std::string> parameters; parameters.push_back(channel->name); parameters.push_back("-b"); parameters.push_back(i->data);
                        ServerInstance->SendMode(parameters, ServerInstance->FakeClient);
                }
        }
}

void ModeChannelBan::RemoveMode(User*, irc::modestacker* stack)
{
}

void ModeChannelBan::DisplayList(User* user, Channel* channel)
{
        /* Display the channel banlist */
        for (BanList::reverse_iterator i = channel->bans.rbegin(); i != channel->bans.rend(); ++i)
        {
                user->WriteServ("367 %s %s %s %s %lu",user->nick.c_str(), channel->name.c_str(), i->data.c_str(), i->set_by.c_str(), (unsigned long)i->set_time);
        }
        user->WriteServ("368 %s %s :End of channel ban list",user->nick.c_str(), channel->name.c_str());
        return;
}

void ModeChannelBan::DisplayEmptyList(User* user, Channel* channel)
{
        user->WriteServ("368 %s %s :End of channel ban list",user->nick.c_str(), channel->name.c_str());
}

std::string& ModeChannelBan::AddBan(User *user, std::string &dest, Channel *chan, int, bool servermode)
{
        if ((!user) || (!chan))
        {
                ServerInstance->Logs->Log("MODE",DEFAULT,"*** BUG *** AddBan was given an invalid parameter");
                dest = "";
                return dest;
        }

        /* Attempt to tidy the mask */
        ModeParser::CleanMask(dest);
        /* If the mask was invalid, we exit */
        if (dest == "")
                return dest;

        long maxbans = chan->GetMaxBans();
        if (!IS_LOCAL(user) && ((unsigned)chan->bans.size() > (unsigned)maxbans))
        {
                user->WriteServ("478 %s %s :Channel ban list for %s is full (maximum entries for this channel is %ld)",user->nick.c_str(), chan->name.c_str(), chan->name.c_str(), maxbans);
                dest = "";
                return dest;
        }

        int MOD_RESULT = 0;
        FOREACH_RESULT(I_OnAddBan,OnAddBan(user,chan,dest));
        if (MOD_RESULT)
        {
                dest = "";
                return dest;
        }

        for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
        {
                if (!strcasecmp(i->data.c_str(), dest.c_str()))
                {
                        /* dont allow a user to set the same ban twice */
                        dest = "";
                        return dest;
                }
        }

        b.set_time = ServerInstance->Time();
        b.data.assign(dest, 0, MAXBUF);
        b.set_by.assign(servermode ? ServerInstance->Config->ServerName : user->nick, 0, 64);
        chan->bans.push_back(b);
        return dest;
}

ModePair ModeChannelBan::ModeSet(User*, User*, Channel* channel, const std::string &parameter)
{
        for (BanList::iterator i = channel->bans.begin(); i != channel->bans.end(); i++)
        {
                if (!strcasecmp(i->data.c_str(), parameter.c_str()))
                {
                        return std::make_pair(true, i->data);
                }
        }
        return std::make_pair(false, parameter);
}

std::string& ModeChannelBan::DelBan(User *user, std::string& dest, Channel *chan, int)
{
        if ((!user) || (!chan))
        {
                ServerInstance->Logs->Log("MODE",DEFAULT,"*** BUG *** TakeBan was given an invalid parameter");
                dest = "";
                return dest;
        }

        /* 'Clean' the mask, e.g. nick -> nick!*@* */
        ModeParser::CleanMask(dest);

        for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
        {
                if (!strcasecmp(i->data.c_str(), dest.c_str()))
                {
                        int MOD_RESULT = 0;
                        FOREACH_RESULT(I_OnDelBan,OnDelBan(user, chan, dest));
                        if (MOD_RESULT)
                        {
                                dest = "";
                                return dest;
                        }
                        chan->bans.erase(i);
                        return dest;
                }
        }
        dest = "";
        return dest;
}