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

m_check.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 the /check command to retrieve information on a user, channel, or IP address */

class CommandCheck : public Command
{
 public:
        CommandCheck (InspIRCd* Instance) : Command(Instance,"CHECK", "o", 1)
        {
                this->source = "m_check.so";
                syntax = "<nickname>|<ip>|<hostmask>|<channel>";
        }

        CmdResult Handle (const std::vector<std::string> &parameters, User *user)
        {
                User *targuser;
                Channel *targchan;
                std::string checkstr;
                std::string chliststr;

                char timebuf[60];
                struct tm *mytime;


                checkstr = "304 " + std::string(user->nick) + " :CHECK";

                targuser = ServerInstance->FindNick(parameters[0]);
                targchan = ServerInstance->FindChan(parameters[0]);

                /*
                 * Syntax of a /check reply:
                 *  :server.name 304 target :CHECK START <target>
                 *  :server.name 304 target :CHECK <field> <value>
                 *  :server.name 304 target :CHECK END
                 */

                user->WriteServ(checkstr + " START " + parameters[0]);

                if (targuser)
                {
                        /* /check on a user */
                        user->WriteServ(checkstr + " nuh " + targuser->GetFullHost());
                        user->WriteServ(checkstr + " realnuh " + targuser->GetFullRealHost());
                        user->WriteServ(checkstr + " realname " + targuser->fullname);
                        user->WriteServ(checkstr + " modes +" + targuser->FormatModes());
                        user->WriteServ(checkstr + " snomasks +" + targuser->FormatNoticeMasks());
                        user->WriteServ(checkstr + " server " + targuser->server);

                        if (IS_AWAY(targuser))
                        {
                                /* user is away */
                                user->WriteServ(checkstr + " awaymsg " + targuser->awaymsg);
                        }

                        if (IS_OPER(targuser))
                        {
                                /* user is an oper of type ____ */
                                user->WriteServ(checkstr + " opertype " + irc::Spacify(targuser->oper.c_str()));
                        }

                        if (IS_LOCAL(targuser))
                        {
                                /* port information is only held for a local user! */
                                user->WriteServ(checkstr + " onport " + ConvToStr(targuser->GetPort()));
                        }

                        chliststr = targuser->ChannelList(targuser);
                        std::stringstream dump(chliststr);

                        ServerInstance->DumpText(user,checkstr + " onchans ", dump);
                }
                else if (targchan)
                {
                        /* /check on a channel */
                        time_t creation_time = targchan->created;
                        time_t topic_time = targchan->topicset;

                        mytime = gmtime(&creation_time);
                        strftime(timebuf, 59, "%Y/%m/%d - %H:%M:%S", mytime);
                        user->WriteServ(checkstr + " created " + timebuf);

                        if (targchan->topic[0] != 0)
                        {
                                /* there is a topic, assume topic related information exists */
                                user->WriteServ(checkstr + " topic " + targchan->topic);
                                user->WriteServ(checkstr + " topic_setby " + targchan->setby);
                                mytime = gmtime(&topic_time);
                                strftime(timebuf, 59, "%Y/%m/%d - %H:%M:%S", mytime);
                                user->WriteServ(checkstr + " topic_setat " + timebuf);
                        }

                        user->WriteServ(checkstr + " modes " + targchan->ChanModes(true));
                        user->WriteServ(checkstr + " membercount " + ConvToStr(targchan->GetUserCounter()));

                        /* now the ugly bit, spool current members of a channel. :| */

                        CUList *ulist= targchan->GetUsers();

                        /* note that unlike /names, we do NOT check +i vs in the channel */
                        for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
                        {
                                char tmpbuf[MAXBUF];
                                /*
                                 * Unlike Asuka, I define a clone as coming from the same host. --w00t
                                 */
                                snprintf(tmpbuf, MAXBUF, "%lu    %s%s (%s@%s) %s ", ServerInstance->Users->GlobalCloneCount(i->first), targchan->GetAllPrefixChars(i->first), i->first->nick.c_str(), i->first->ident.c_str(), i->first->dhost.c_str(), i->first->fullname.c_str());
                                user->WriteServ(checkstr + " member " + tmpbuf);
                        }
                }
                else
                {
                        /*  /check on an IP address, or something that doesn't exist */
                        long x = 0;

                        /* hostname or other */
                        for (user_hash::const_iterator a = ServerInstance->Users->clientlist->begin(); a != ServerInstance->Users->clientlist->end(); a++)
                        {
                                if (InspIRCd::Match(a->second->host, parameters[0]) || InspIRCd::Match(a->second->dhost, parameters[0]))
                                {
                                        /* host or vhost matches mask */
                                        user->WriteServ(checkstr + " match " + ConvToStr(++x) + " " + a->second->GetFullRealHost());
                                }
                                /* IP address */
                                else if (InspIRCd::MatchCIDR(a->second->GetIPString(), parameters[0]))
                                {
                                        /* same IP. */
                                        user->WriteServ(checkstr + " match " + ConvToStr(++x) + " " + a->second->GetFullRealHost());
                                }
                        }

                        user->WriteServ(checkstr + " matches " + ConvToStr(x));
                }

                user->WriteServ(checkstr + " END " + parameters[0]);

                return CMD_LOCALONLY;
        }
};


class ModuleCheck : public Module
{
 private:
        CommandCheck *mycommand;
 public:
        ModuleCheck(InspIRCd* Me) : Module(Me)
        {

                mycommand = new CommandCheck(ServerInstance);
                ServerInstance->AddCommand(mycommand);

        }

        virtual ~ModuleCheck()
        {
        }

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


};

MODULE_INIT(ModuleCheck)