Main Page | Namespace List | Class Hierarchy | Alphabetical List | Class List | Directories | File List | Namespace Members | Class Members | File Members

home » brain » inspircd-cvs » 1_1_stable » src » modules » m_spanningtree

treesocket2.cpp

Go to the documentation of this file.

/*       +------------------------------------+
 *       | 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 "configreader.h"
#include "users.h"
#include "channels.h"
#include "modules.h"
#include "commands/cmd_whois.h"
#include "commands/cmd_stats.h"
#include "socket.h"
#include "wildcard.h"
#include "xline.h"
#include "transport.h"
#include "socketengine.h"

#include "m_spanningtree/main.h"
#include "m_spanningtree/utils.h"
#include "m_spanningtree/treeserver.h"
#include "m_spanningtree/link.h"
#include "m_spanningtree/treesocket.h"
#include "m_spanningtree/resolvers.h"
#include "m_spanningtree/handshaketimer.h"

/* $ModDep: m_spanningtree/timesynctimer.h m_spanningtree/resolvers.h m_spanningtree/main.h m_spanningtree/utils.h m_spanningtree/treeserver.h m_spanningtree/link.h m_spanningtree/treesocket.h */

static std::map<std::string, std::string> warned;       /* Server names that have had protocol violation warnings displayed for them */

void TreeSocket::WriteLine(std::string line)
{
        Instance->Log(DEBUG, "S[%d] -> %s", this->GetFd(), line.c_str());
        line.append("\r\n");
        this->Write(line);
}


/* Handle ERROR command */
bool TreeSocket::Error(std::deque<std::string> &params)
{
        if (params.size() < 1)
                return false;
        this->Instance->SNO->WriteToSnoMask('l',"ERROR from %s: %s",(!InboundServerName.empty() ? InboundServerName.c_str() : myhost.c_str()),params[0].c_str());
        /* we will return false to cause the socket to close. */
        return false;
}

bool TreeSocket::Modules(const std::string &prefix, std::deque<std::string> &params)
{
        if (params.empty())
                return true;

        if (!this->Instance->MatchText(this->Instance->Config->ServerName, params[0]))
        {
                /* Pass it on, not for us */
                Utils->DoOneToOne(prefix, "MODULES", params, params[0]);
                return true;
        }

        char strbuf[MAXBUF];
        std::deque<std::string> par;
        par.push_back(prefix);
        par.push_back("");

        userrec* source = this->Instance->FindNick(prefix);
        if (!source)
                return true;

        for (unsigned int i = 0; i < Instance->Config->module_names.size(); i++)
        {
                Version V = Instance->modules[i]->GetVersion();
                char modulename[MAXBUF];
                char flagstate[MAXBUF];
                *flagstate = 0;
                if (V.Flags & VF_STATIC)
                        strlcat(flagstate,", static",MAXBUF);
                if (V.Flags & VF_VENDOR)
                        strlcat(flagstate,", vendor",MAXBUF);
                if (V.Flags & VF_COMMON)
                        strlcat(flagstate,", common",MAXBUF);
                if (V.Flags & VF_SERVICEPROVIDER)
                        strlcat(flagstate,", service provider",MAXBUF);
                if (!flagstate[0])
                        strcpy(flagstate,"  <no flags>");
                strlcpy(modulename,Instance->Config->module_names[i].c_str(),256);
                if (*source->oper)
                {
                        snprintf(strbuf, MAXBUF, "::%s 702 %s :0x%08lx %d.%d.%d.%d %s (%s)",Instance->Config->ServerName,source->nick,(long unsigned int)Instance->modules[i],V.Major,V.Minor,V.Revision,V.Build,ServerConfig::CleanFilename(modulename),flagstate+2);
                }
                else
                {
                        snprintf(strbuf, MAXBUF, "::%s 702 %s :%s",Instance->Config->ServerName,source->nick,ServerConfig::CleanFilename(modulename));
                }
                par[1] = strbuf;
                Utils->DoOneToOne(Instance->Config->ServerName, "PUSH", par, source->server);
        }
        snprintf(strbuf, MAXBUF, "::%s 703 %s :End of MODULES list", Instance->Config->ServerName, source->nick);
        par[1] = strbuf;
        Utils->DoOneToOne(Instance->Config->ServerName, "PUSH", par, source->server);
        return true;
}

bool TreeSocket::Motd(const std::string &prefix, std::deque<std::string> &params)
{
        if (params.size() > 0)
        {
                if (this->Instance->MatchText(this->Instance->Config->ServerName, params[0]))
                {
                        /* It's for our server */
                        string_list results;
                        userrec* source = this->Instance->FindNick(prefix);

                        if (source)
                        {
                                std::deque<std::string> par;
                                par.push_back(prefix);
                                par.push_back("");

                                if (!Instance->Config->MOTD.size())
                                {
                                        par[1] = std::string("::")+Instance->Config->ServerName+" 422 "+source->nick+" :Message of the day file is missing.";
                                        Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
                                        return true;
                                }

                                par[1] = std::string("::")+Instance->Config->ServerName+" 375 "+source->nick+" :"+Instance->Config->ServerName+" message of the day";
                                Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);

                                for (unsigned int i = 0; i < Instance->Config->MOTD.size(); i++)
                                {
                                        par[1] = std::string("::")+Instance->Config->ServerName+" 372 "+source->nick+" :- "+Instance->Config->MOTD[i];
                                        Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
                                }

                                par[1] = std::string("::")+Instance->Config->ServerName+" 376 "+source->nick+" :End of message of the day.";
                                Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
                        }
                }
                else
                {
                        /* Pass it on */
                        userrec* source = this->Instance->FindNick(prefix);
                        if (source)
                                Utils->DoOneToOne(prefix, "MOTD", params, params[0]);
                }
        }
        return true;
}

bool TreeSocket::Admin(const std::string &prefix, std::deque<std::string> &params)
{
        if (params.size() > 0)
        {
                if (this->Instance->MatchText(this->Instance->Config->ServerName, params[0]))
                {
                        /* It's for our server */
                        string_list results;
                        userrec* source = this->Instance->FindNick(prefix);
                        if (source)
                        {
                                std::deque<std::string> par;
                                par.push_back(prefix);
                                par.push_back("");
                                par[1] = std::string("::")+Instance->Config->ServerName+" 256 "+source->nick+" :Administrative info for "+Instance->Config->ServerName;
                                Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
                                par[1] = std::string("::")+Instance->Config->ServerName+" 257 "+source->nick+" :Name     - "+Instance->Config->AdminName;
                                Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
                                par[1] = std::string("::")+Instance->Config->ServerName+" 258 "+source->nick+" :Nickname - "+Instance->Config->AdminNick;
                                Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
                                par[1] = std::string("::")+Instance->Config->ServerName+" 258 "+source->nick+" :E-Mail   - "+Instance->Config->AdminEmail;
                                Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
                        }
                }
                else
                {
                        /* Pass it on */
                        userrec* source = this->Instance->FindNick(prefix);
                        if (source)
                                Utils->DoOneToOne(prefix, "ADMIN", params, params[0]);
                }
        }
        return true;
}

bool TreeSocket::Stats(const std::string &prefix, std::deque<std::string> &params)
{
        /* Get the reply to a STATS query if it matches this servername,
         * and send it back as a load of PUSH queries
         */
        if (params.size() > 1)
        {
                if (this->Instance->MatchText(this->Instance->Config->ServerName, params[1]))
                {
                        /* It's for our server */
                        string_list results;
                        userrec* source = this->Instance->FindNick(prefix);
                        if (source)
                        {
                                std::deque<std::string> par;
                                par.push_back(prefix);
                                par.push_back("");
                                DoStats(this->Instance, *(params[0].c_str()), source, results);
                                for (size_t i = 0; i < results.size(); i++)
                                {
                                        par[1] = "::" + results[i];
                                        Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
                                }
                        }
                }
                else
                {
                        /* Pass it on */
                        userrec* source = this->Instance->FindNick(prefix);
                        if (source)
                                Utils->DoOneToOne(prefix, "STATS", params, params[1]);
                }
        }
        return true;
}


bool TreeSocket::OperType(const std::string &prefix, std::deque<std::string> &params)
{
        if (params.size() != 1)
                return true;
        std::string opertype = params[0];
        userrec* u = this->Instance->FindNick(prefix);
        if (u)
        {
                if (!u->IsModeSet('o'))
                        this->Instance->all_opers.push_back(u);
                u->modes[UM_OPERATOR] = 1;
                strlcpy(u->oper,opertype.c_str(),NICKMAX-1);
                Utils->DoOneToAllButSender(u->nick,"OPERTYPE",params,u->server);
                this->Instance->SNO->WriteToSnoMask('o',"From %s: User %s (%s@%s) is now an IRC operator of type %s",u->server, u->nick,u->ident,u->host,irc::Spacify(opertype.c_str()));
        }
        return true;
}

bool TreeSocket::ForceNick(const std::string &prefix, std::deque<std::string> &params)
{
        if (params.size() < 3)
                return true;

        userrec* u = this->Instance->FindNick(params[0]);

        if (u)
        {
                Utils->DoOneToAllButSender(prefix,"SVSNICK",params,prefix);
                if (IS_LOCAL(u))
                {
                        std::deque<std::string> par;
                        par.push_back(params[1]);
                        if (!u->ForceNickChange(params[1].c_str()))
                        {
                                userrec::QuitUser(this->Instance, u, "Nickname collision");
                                return true;
                        }
                        u->age = atoi(params[2].c_str());
                }
        }
        return true;
}

bool TreeSocket::OperQuit(const std::string &prefix, std::deque<std::string> &params)
{
        if (params.size() < 1)
                return true;

        userrec* u = this->Instance->FindNick(prefix);

        if (u)
        {
                u->SetOperQuit(params[0]);
                params[0] = ":" + params[0];
                Utils->DoOneToAllButSender(prefix,"OPERQUIT",params,prefix);
        }
        return true;
}

bool TreeSocket::ServiceJoin(const std::string &prefix, std::deque<std::string> &params)
{
        if (params.size() < 2)
                return true;

        if (!this->Instance->IsChannel(params[1].c_str()))
                return true;

        userrec* u = this->Instance->FindNick(params[0]);

        if (u)
        {
                /* only join if it's local, otherwise just pass it on! */
                if (IS_LOCAL(u))
                        chanrec::JoinUser(this->Instance, u, params[1].c_str(), false, "", Instance->Time());
                Utils->DoOneToAllButSender(prefix,"SVSJOIN",params,prefix);
        }
        return true;
}

bool TreeSocket::ServicePart(const std::string &prefix, std::deque<std::string> &params)
{
        if (params.size() < 2)
                return true;

        if (!this->Instance->IsChannel(params[1].c_str()))
                return true;

        userrec* u = this->Instance->FindNick(params[0]);
        chanrec* c = this->Instance->FindChan(params[1]);

        if (u)
        {
                /* only part if it's local, otherwise just pass it on! */
                if (IS_LOCAL(u))
                        if (!c->PartUser(u, "Services forced part"))
                                delete c;
                Utils->DoOneToAllButSender(prefix,"SVSPART",params,prefix);
        }

        return true;
}

bool TreeSocket::RemoteRehash(const std::string &prefix, std::deque<std::string> &params)
{
        if (params.size() < 1)
                return false;

        std::string servermask = params[0];
        std::string parameter;

        if (params.size() > 1)
        {
                parameter = params[1];
        }

        if (this->Instance->MatchText(this->Instance->Config->ServerName,servermask))
        {
                this->Instance->SNO->WriteToSnoMask('l',"Remote rehash initiated by \002"+prefix+"\002.");
                this->Instance->RehashServer();
                Utils->ReadConfiguration(true);
                FOREACH_MOD_I(this->Instance, I_OnRehash, OnRehash(NULL, parameter));
                InitializeDisabledCommands(Instance->Config->DisabledCommands, Instance);
        }
        Utils->DoOneToAllButSender(prefix,"REHASH",params,prefix);
        return true;
}

bool TreeSocket::RemoteKill(const std::string &prefix, std::deque<std::string> &params)
{        
        if (params.size() != 2)
                return true;

        userrec* who = this->Instance->FindNick(params[0]);

        if (who)
        {
                /* Prepend kill source, if we don't have one -- '[' is check for older 1.1 servers, and services, that prefix reason with servername. */
                if ((*(params[1].c_str()) != 'K') && (*(params[1].c_str()) != '['))
                {
                        params[1] = "Killed (" + params[1] +")";
                }
                std::string reason = params[1];
                params[1] = ":" + params[1];
                Utils->DoOneToAllButSender(prefix,"KILL",params,prefix);
                // NOTE: This is safe with kill hiding on, as RemoteKill is only reached if we have a server prefix.
                // in short this is not executed for USERS.
                who->Write(":%s KILL %s :%s (%s)", prefix.c_str(), who->nick, prefix.c_str(), reason.c_str());
                userrec::QuitUser(this->Instance,who,reason);
        }
        return true;
}

bool TreeSocket::LocalPong(const std::string &prefix, std::deque<std::string> &params)
{
        if (params.size() < 1)
                return true;

        if (params.size() == 1)
        {
                TreeServer* ServerSource = Utils->FindServer(prefix);
                if (ServerSource)
                {
                        ServerSource->SetPingFlag();
                        timeval t;
                        gettimeofday(&t, NULL);
                        long ts = (t.tv_sec * 1000) + (t.tv_usec / 1000);
                        ServerSource->rtt = ts - ServerSource->LastPingMsec;
                }
        }
        else
        {
                std::string forwardto = params[1];
                if (forwardto == this->Instance->Config->ServerName)
                {
                        /*
                         * this is a PONG for us
                         * if the prefix is a user, check theyre local, and if they are,
                         * dump the PONG reply back to their fd. If its a server, do nowt.
                         * Services might want to send these s->s, but we dont need to yet.
                         */
                        userrec* u = this->Instance->FindNick(prefix);
                        if (u)
                        {
                                u->WriteServ("PONG %s %s",params[0].c_str(),params[1].c_str());
                        }
                }
                else
                {
                        // not for us, pass it on :)
                        Utils->DoOneToOne(prefix,"PONG",params,forwardto);
                }
        }

        return true;
}

bool TreeSocket::MetaData(const std::string &prefix, std::deque<std::string> &params)
{
        if (params.size() < 2)
                return true;
        else if (params.size() < 3)
                params.push_back("");
        TreeServer* ServerSource = Utils->FindServer(prefix);
        if (ServerSource)
        {
                Utils->SetRemoteBursting(ServerSource, false);

                if (params[0] == "*")
                {
                        FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_OTHER,NULL,params[1],params[2]));
                }
                else if (*(params[0].c_str()) == '#')
                {
                        chanrec* c = this->Instance->FindChan(params[0]);
                        if (c)
                        {
                                FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_CHANNEL,c,params[1],params[2]));
                        }
                }
                else if (*(params[0].c_str()) != '#')
                {
                        userrec* u = this->Instance->FindNick(params[0]);
                        if (u)
                        {
                                FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_USER,u,params[1],params[2]));
                        }
                }
        }

        params[2] = ":" + params[2];
        Utils->DoOneToAllButSender(prefix,"METADATA",params,prefix);
        return true;
}

bool TreeSocket::ServerVersion(const std::string &prefix, std::deque<std::string> &params)
{
        if (params.size() < 1)
                return true;

        TreeServer* ServerSource = Utils->FindServer(prefix);

        if (ServerSource)
        {
                ServerSource->SetVersion(params[0]);
        }
        params[0] = ":" + params[0];
        Utils->DoOneToAllButSender(prefix,"VERSION",params,prefix);
        return true;
}

bool TreeSocket::ChangeHost(const std::string &prefix, std::deque<std::string> &params)
{
        if (params.size() < 1)
                return true;
        userrec* u = this->Instance->FindNick(prefix);

        if (u)
        {
                u->ChangeDisplayedHost(params[0].c_str());
                Utils->DoOneToAllButSender(prefix,"FHOST",params,u->server);
        }
        return true;
}

bool TreeSocket::AddLine(const std::string &prefix, std::deque<std::string> &params)
{
        if (params.size() < 6)
                return true;
        bool propogate = false;
        if (!this->bursting)
                Utils->lines_to_apply = 0;
        switch (*(params[0].c_str()))
        {
                case 'Z':
                        propogate = Instance->XLines->add_zline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
                        Instance->XLines->zline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
                        if (propogate)
                                Utils->lines_to_apply |= APPLY_ZLINES;
                break;
                case 'Q':
                        propogate = Instance->XLines->add_qline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
                        Instance->XLines->qline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
                        if (propogate)
                                Utils->lines_to_apply |= APPLY_QLINES;
                break;
                case 'E':
                        propogate = Instance->XLines->add_eline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
                        Instance->XLines->eline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
                break;
                case 'G':
                        propogate = Instance->XLines->add_gline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
                        Instance->XLines->gline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
                        if (propogate)
                                Utils->lines_to_apply |= APPLY_GLINES;
                break;
                case 'K':
                        propogate = Instance->XLines->add_kline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
                        if (propogate)
                                Utils->lines_to_apply |= APPLY_KLINES;
                break;
                default:
                        /* Just in case... */
                        this->Instance->SNO->WriteToSnoMask('x',"\2WARNING\2: Invalid xline type '"+params[0]+"' sent by server "+prefix+", ignored!");
                        propogate = false;
                break;
        }
        /* Send it on its way */
        if (propogate)
        {
                if (atoi(params[4].c_str()))
                {
                        time_t c_requires_crap = ConvToInt(params[4]) + Instance->Time();
                        this->Instance->SNO->WriteToSnoMask('x',"%s Added %cLINE on %s to expire on %s (%s).",prefix.c_str(),*(params[0].c_str()),params[1].c_str(),Instance->TimeString(c_requires_crap).c_str(),params[5].c_str());
                }
                else
                {
                        this->Instance->SNO->WriteToSnoMask('x',"%s Added permanent %cLINE on %s (%s).",prefix.c_str(),*(params[0].c_str()),params[1].c_str(),params[5].c_str());
                }
                params[5] = ":" + params[5];
                Utils->DoOneToAllButSender(prefix,"ADDLINE",params,prefix);
        }
        if (!this->bursting)
        {
                Instance->XLines->apply_lines(Utils->lines_to_apply);
                Utils->lines_to_apply = 0;
        }
        return true;
}

bool TreeSocket::ChangeName(const std::string &prefix, std::deque<std::string> &params)
{
        if (params.size() < 1)
                return true;
        userrec* u = this->Instance->FindNick(prefix);
        if (u)
        {
                u->ChangeName(params[0].c_str());
                params[0] = ":" + params[0];
                Utils->DoOneToAllButSender(prefix,"FNAME",params,u->server);
        }
        return true;
}

bool TreeSocket::Whois(const std::string &prefix, std::deque<std::string> &params)
{
        if (params.size() < 1)
                return true;
        userrec* u = this->Instance->FindNick(prefix);
        if (u)
        {
                // an incoming request
                if (params.size() == 1)
                {
                        userrec* x = this->Instance->FindNick(params[0]);
                        if ((x) && (IS_LOCAL(x)))
                        {
                                userrec* x = this->Instance->FindNick(params[0]);
                                char signon[MAXBUF];
                                char idle[MAXBUF];
                                snprintf(signon, MAXBUF, "%lu", (unsigned long)x->signon);
                                snprintf(idle, MAXBUF, "%lu", (unsigned long)abs((x->idle_lastmsg) - Instance->Time(true)));
                                std::deque<std::string> par;
                                par.push_back(prefix);
                                par.push_back(signon);
                                par.push_back(idle);
                                // ours, we're done, pass it BACK
                                Utils->DoOneToOne(params[0], "IDLE", par, u->server);
                        }
                        else
                        {
                                // not ours pass it on
                                if (x)
                                        Utils->DoOneToOne(prefix, "IDLE", params, x->server);
                        }
                }
                else if (params.size() == 3)
                {
                        std::string who_did_the_whois = params[0];
                        userrec* who_to_send_to = this->Instance->FindNick(who_did_the_whois);
                        if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
                        {
                                // an incoming reply to a whois we sent out
                                std::string nick_whoised = prefix;
                                unsigned long signon = atoi(params[1].c_str());
                                unsigned long idle = atoi(params[2].c_str());
                                if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
                                {
                                        do_whois(this->Instance, who_to_send_to, u, signon, idle, nick_whoised.c_str());
                                }
                        }
                        else
                        {
                                // not ours, pass it on
                                if (who_to_send_to)
                                        Utils->DoOneToOne(prefix, "IDLE", params, who_to_send_to->server);
                        }
                }
        }
        return true;
}

bool TreeSocket::Push(const std::string &prefix, std::deque<std::string> &params)
{
        if (params.size() < 2)
                return true;
        userrec* u = this->Instance->FindNick(params[0]);
        if (!u)
                return true;
        if (IS_LOCAL(u))
        {
                u->Write(params[1]);
        }
        else
        {
                // continue the raw onwards
                params[1] = ":" + params[1];
                Utils->DoOneToOne(prefix,"PUSH",params,u->server);
        }
        return true;
}

bool TreeSocket::HandleSetTime(const std::string &prefix, std::deque<std::string> &params)
{
        if (!params.size() || !Utils->EnableTimeSync)
                return true;

        bool force = false;

        if ((params.size() == 2) && (params[1] == "FORCE"))
                force = true;

        time_t them = atoi(params[0].c_str());
        time_t us = Instance->Time(false);

        time_t diff = them - us;

        Utils->DoOneToAllButSender(prefix, "TIMESET", params, prefix);

        if (force || (them != us))
        {
                time_t old = Instance->SetTimeDelta(diff);
                Instance->Log(DEBUG, "TS (diff %d) from %s applied (old delta was %d)", diff, prefix.c_str(), old);
        }

        return true;
}

bool TreeSocket::Time(const std::string &prefix, std::deque<std::string> &params)
{
        // :source.server TIME remote.server sendernick
        // :remote.server TIME source.server sendernick TS
        if (params.size() == 2)
        {
                // someone querying our time?
                if (this->Instance->Config->ServerName == params[0])
                {
                        userrec* u = this->Instance->FindNick(params[1]);
                        if (u)
                        {
                                params.push_back(ConvToStr(Instance->Time(false)));
                                params[0] = prefix;
                                Utils->DoOneToOne(this->Instance->Config->ServerName,"TIME",params,params[0]);
                        }
                }
                else
                {
                        // not us, pass it on
                        userrec* u = this->Instance->FindNick(params[1]);
                        if (u)
                                Utils->DoOneToOne(prefix,"TIME",params,params[0]);
                }
        }
        else if (params.size() == 3)
        {
                // a response to a previous TIME
                userrec* u = this->Instance->FindNick(params[1]);
                if ((u) && (IS_LOCAL(u)))
                {
                        time_t rawtime = atol(params[2].c_str());
                        struct tm * timeinfo;
                        timeinfo = localtime(&rawtime);
                        char tms[26];
                        snprintf(tms,26,"%s",asctime(timeinfo));
                        tms[24] = 0;
                        u->WriteServ("391 %s %s :%s",u->nick,prefix.c_str(),tms);
                }
                else
                {
                        if (u)
                                Utils->DoOneToOne(prefix,"TIME",params,u->server);
                }
        }
        return true;
}

bool TreeSocket::LocalPing(const std::string &prefix, std::deque<std::string> &params)
{
        if (params.size() < 1)
                return true;
        if (params.size() == 1)
        {
                std::string stufftobounce = params[0];
                this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" PONG "+stufftobounce);
                return true;
        }
        else
        {
                std::string forwardto = params[1];
                if (forwardto == this->Instance->Config->ServerName)
                {
                        // this is a ping for us, send back PONG to the requesting server
                        params[1] = params[0];
                        params[0] = forwardto;
                        Utils->DoOneToOne(forwardto,"PONG",params,params[1]);
                }
                else
                {
                        // not for us, pass it on :)
                        Utils->DoOneToOne(prefix,"PING",params,forwardto);
                }
                return true;
        }
}

bool TreeSocket::RemoveStatus(const std::string &prefix, std::deque<std::string> &params)
{
        if (params.size() < 1)
                return true;
        chanrec* c = Instance->FindChan(params[0]);
        if (c)
        {
                for (char modeletter = 'A'; modeletter <= 'z'; modeletter++)
                {
                        ModeHandler* mh = Instance->Modes->FindMode(modeletter, MODETYPE_CHANNEL);
                        if (mh)
                                mh->RemoveMode(c);
                }
        }
        return true;
}

bool TreeSocket::RemoteServer(const std::string &prefix, std::deque<std::string> &params)
{
        if (params.size() < 4)
                return false;
        std::string servername = params[0];
        std::string password = params[1];
        // hopcount is not used for a remote server, we calculate this ourselves
        std::string description = params[3];
        TreeServer* ParentOfThis = Utils->FindServer(prefix);
        if (!ParentOfThis)
        {
                this->SendError("Protocol error - Introduced remote server from unknown server "+prefix);
                return false;
        }
        TreeServer* CheckDupe = Utils->FindServer(servername);
        if (CheckDupe)
        {
                this->SendError("Server "+servername+" already exists!");
                this->Instance->SNO->WriteToSnoMask('l',"Server \2"+servername+"\2 being introduced from \2" + prefix + "\2 denied, already exists. Closing link with " + prefix);
                return false;
        }
        Link* lnk = Utils->FindLink(servername);
        TreeServer* Node = new TreeServer(this->Utils,this->Instance,servername,description,ParentOfThis,NULL, lnk ? lnk->Hidden : false);
        ParentOfThis->AddChild(Node);
        params[3] = ":" + params[3];
        Utils->SetRemoteBursting(Node, true);
        Utils->DoOneToAllButSender(prefix,"SERVER",params,prefix);
        this->Instance