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m_cban.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 "xline.h"

/* $ModDesc: Gives /cban, aka C:lines. Think Q:lines, for channels. */

class CBan : public XLine
{
public:
        irc::string matchtext;

        CBan(InspIRCd* Instance, time_t s_time, long d, const char* src, const char* re, const char *ch) : XLine(Instance, s_time, d, src, re, "CBAN")
        {
                this->matchtext = ch;
        }

        ~CBan()
        {
        }

        // XXX I shouldn't have to define this
        bool Matches(User *u)
        {
                return false;
        }

        bool Matches(const std::string &s)
        {
                if (matchtext == s)
                        return true;
                return false;
        }

        void DisplayExpiry()
        {
                ServerInstance->SNO->WriteToSnoMask('x',"Expiring timed CBan %s (set by %s %ld seconds ago)", this->matchtext.c_str(), this->source, this->duration);
        }

        const char* Displayable()
        {
                return matchtext.c_str();
        }
};

class CBanFactory : public XLineFactory
{
 public:
        CBanFactory(InspIRCd* Instance) : XLineFactory(Instance, "CBAN") { }

        XLine* Generate(time_t set_time, long duration, const char* source, const char* reason, const char* xline_specific_mask)
        {
                return new CBan(ServerInstance, set_time, duration, source, reason, xline_specific_mask);
        }

        bool AutoApplyToUserList(XLine *x)
        {
                return false; // No, we apply to channels.
        }
};

class CommandCBan : public Command
{
 public:
        CommandCBan(InspIRCd* Me) : Command(Me, "CBAN", "o", 1, 3)
        {
                this->source = "m_cban.so";
                this->syntax = "<channel> [<duration> :<reason>]";
                TRANSLATE4(TR_TEXT,TR_TEXT,TR_TEXT,TR_END);
        }

        CmdResult Handle(const std::vector<std::string> &parameters, User *user)
        {
                /* syntax: CBAN #channel time :reason goes here */
                /* 'time' is a human-readable timestring, like 2d3h2s. */

                if (parameters.size() == 1)
                {
                        if (ServerInstance->XLines->DelLine(parameters[0].c_str(), "CBAN", user))
                        {
                                ServerInstance->SNO->WriteToSnoMask('x',"%s Removed CBan on %s.",user->nick.c_str(),parameters[0].c_str());
                        }
                        else
                        {
                                user->WriteServ("NOTICE %s :*** CBan %s not found in list, try /stats C.",user->nick.c_str(),parameters[0].c_str());
                        }

                        return CMD_SUCCESS;
                }
                else if (parameters.size() >= 2)
                {
                        // Adding - XXX todo make this respect <insane> tag perhaps..
                        long duration = ServerInstance->Duration(parameters[1]);
                        CBan *r = NULL;

                        try
                        {
                                r = new CBan(ServerInstance, ServerInstance->Time(), duration, user->nick.c_str(), parameters[2].c_str(), parameters[0].c_str());
                        }
                        catch (...)
                        {
                                ; // Do nothing. If we get here, the regex was fucked up, and they already got told it fucked up.
                        }

                        if (r)
                        {
                                if (ServerInstance->XLines->AddLine(r, user))
                                {
                                        if (!duration)
                                        {
                                                ServerInstance->SNO->WriteToSnoMask('x',"%s added permanent CBan for %s: %s", user->nick.c_str(), parameters[0].c_str(), parameters[2].c_str());
                                        }
                                        else
                                        {
                                                time_t c_requires_crap = duration + ServerInstance->Time();
                                                ServerInstance->SNO->WriteToSnoMask('x', "%s added timed CBan for %s, expires on %s: %s", user->nick.c_str(), parameters[0].c_str(), ServerInstance->TimeString(c_requires_crap).c_str(), parameters[2].c_str());
                                        }

                                        ServerInstance->XLines->ApplyLines();
                                }
                                else
                                {
                                        delete r;
                                        user->WriteServ("NOTICE %s :*** CBan for %s already exists", user->nick.c_str(), parameters[0].c_str());
                                }
                        }
                }

                return CMD_FAILURE;
        }
};

class ModuleCBan : public Module
{
        CommandCBan* mycommand;
        CBanFactory *f;

 public:
        ModuleCBan(InspIRCd* Me) : Module(Me)
        {
                f = new CBanFactory(ServerInstance);
                ServerInstance->XLines->RegisterFactory(f);

                mycommand = new CommandCBan(Me);
                ServerInstance->AddCommand(mycommand);
                Implementation eventlist[] = { I_OnUserPreJoin, I_OnSyncOtherMetaData, I_OnDecodeMetaData, I_OnStats };
                ServerInstance->Modules->Attach(eventlist, this, 4);
        }

        virtual ~ModuleCBan()
        {
                ServerInstance->XLines->DelAll("CBAN");
                ServerInstance->XLines->UnregisterFactory(f);
        }

        virtual int OnStats(char symbol, User* user, string_list &out)
        {
                if (symbol != 'C')
                        return 0;

                ServerInstance->XLines->InvokeStats("CBAN", 210, user, out);
                return 1;
        }

        virtual int OnUserPreJoin(User *user, Channel *chan, const char *cname, std::string &privs, const std::string &keygiven)
        {
                XLine *rl = ServerInstance->XLines->MatchesLine("CBAN", cname);

                if (rl)
                {
                        // Channel is banned.
                        user->WriteServ( "384 %s %s :Cannot join channel, CBANed (%s)", user->nick.c_str(), cname, rl->reason);
                        ServerInstance->SNO->WriteToSnoMask('A', "%s tried to join %s which is CBANed (%s)", user->nick.c_str(), cname, rl->reason);
                        return 1;
                }

                return 0;
        }

        virtual Version GetVersion()
        {
                return Version("$Id: m_cban.cpp 10741 2008-10-28 16:11:20Z w00t $", VF_COMMON | VF_VENDOR, API_VERSION);
        }
};

MODULE_INIT(ModuleCBan)