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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 "commands/cmd_whois.h"
#include "commands/cmd_stats.h"
#include "socket.h"
#include "wildcard.h"
#include "xline.h"
#include "transport.h"
#include "m_hash.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 m_hash.h */
bool TreeSocket::ParseUID(const std::string &source, std::deque<std::string> ¶ms)
{
/** Do we have enough parameters:
* UID uuid age nick host dhost ident +modestr ip.string :gecos
*/
if (params.size() != 10)
{
if (!params.empty())
this->WriteLine(std::string(":")+this->Instance->Config->GetSID()+" KILL "+params[0]+" :Invalid client introduction ("+params[0]+" with only "+
ConvToStr(params.size())+" of 10 parameters?)");
return true;
}
time_t age_t = ConvToInt(params[1]);
time_t signon = ConvToInt(params[8]);
const char* tempnick = params[2].c_str();
std::string empty;
/* XXX probably validate UID length too -- w00t */
cmd_validation valid[] = { {"Nickname", 2, NICKMAX}, {"Hostname", 3, 64}, {"Displayed hostname", 4, 64}, {"Ident", 5, IDENTMAX + 1}, {"GECOS", 9, MAXGECOS}, {"", 0, 0} };
TreeServer* remoteserver = Utils->FindServer(source);
if (!remoteserver)
{
this->WriteLine(std::string(":")+this->Instance->Config->GetSID()+" KILL "+params[0]+" :Invalid client introduction (Unknown server "+source+")");
return true;
}
/* Check parameters for validity before introducing the client, discovered by dmb */
if (!age_t)
{
this->WriteLine(std::string(":")+this->Instance->Config->GetSID()+" KILL "+params[0]+" :Invalid client introduction (Invalid TS?)");
return true;
}
for (size_t x = 0; valid[x].length; ++x)
{
if (params[valid[x].param].length() > valid[x].length)
{
this->WriteLine(std::string(":")+this->Instance->Config->GetSID()+" KILL "+params[0]+" :Invalid client introduction (" + valid[x].item + " > " + ConvToStr(valid[x].length) + ")");
return true;
}
}
/* check for collision */
user_hash::iterator iter = this->Instance->Users->clientlist->find(tempnick);
if (iter != this->Instance->Users->clientlist->end())
{
/*
* Nick collision.
*/
Instance->Logs->Log("m_spanningtree",DEBUG,"*** Collision on %s", tempnick);
int collide = this->DoCollision(iter->second, age_t, params[5], params[7], params[0]);
if (collide == 2)
{
/* remote client changed, make sure we change their nick for the hash too */
tempnick = params[0].c_str();
params[2] = params[0];
}
}
/* IMPORTANT NOTE: For remote users, we pass the UUID in the constructor. This automatically
* sets it up in the UUID hash for us.
*/
User* _new = NULL;
try
{
_new = new User(this->Instance, params[0]);
}
catch (...)
{
SendError("Protocol violation - Duplicate UUID '" + params[0] + "' on introduction of new user");
return false;
}
(*(this->Instance->Users->clientlist))[tempnick] = _new;
_new->SetFd(FD_MAGIC_NUMBER);
_new->nick.assign(tempnick, 0, NICKMAX - 1);
_new->host.assign(params[3], 0, 64);
_new->dhost.assign(params[4], 0, 64);
_new->server = this->Instance->FindServerNamePtr(remoteserver->GetName().c_str());
_new->ident.assign(params[5], 0, IDENTMAX + 1);
_new->fullname.assign(params[9], 0, MAXGECOS);
_new->registered = REG_ALL;
_new->signon = signon;
_new->age = age_t;
/* we need to remove the + from the modestring, so we can do our stuff */
std::string::size_type pos_after_plus = params[6].find_first_not_of('+');
if (pos_after_plus != std::string::npos)
params[6] = params[6].substr(pos_after_plus);
for (std::string::iterator v = params[6].begin(); v != params[6].end(); v++)
{
/* For each mode thats set, increase counter */
ModeHandler* mh = Instance->Modes->FindMode(*v, MODETYPE_USER);
if (mh)
{
mh->OnModeChange(_new, _new, NULL, empty, true);
_new->SetMode(*v, true);
mh->ChangeCount(1);
}
}
/* now we've done with modes processing, put the + back for remote servers */
params[6] = "+" + params[6];
#ifdef SUPPORT_IP6LINKS
if (params[7].find_first_of(":") != std::string::npos)
_new->SetSockAddr(AF_INET6, params[7].c_str(), 0);
else
#endif
_new->SetSockAddr(AF_INET, params[7].c_str(), 0);
Instance->Users->AddGlobalClone(_new);
bool dosend = true;
if ((this->Utils->quiet_bursts && remoteserver->bursting) || this->Instance->SilentULine(_new->server))
dosend = false;
if (dosend)
this->Instance->SNO->WriteToSnoMask('C',"Client connecting at %s: %s!%s@%s [%s] [%s]", _new->server, _new->nick.c_str(), _new->ident.c_str(), _new->host.c_str(), _new->GetIPString(), _new->fullname.c_str());
params[9] = ":" + params[9];
Utils->DoOneToAllButSender(source, "UID", params, source);
FOREACH_MOD_I(Instance,I_OnPostConnect,OnPostConnect(_new));
return true;
}
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