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/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
* Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
* Copyright (C) 2008 Craig Edwards <craigedwards@brainbox.cc>
*
* This file is part of InspIRCd. InspIRCd is free software: you can
* redistribute it and/or modify it under the terms of the GNU General Public
* License as published by the Free Software Foundation, version 2.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "inspircd.h"
#include "xline.h"
#include "listmode.h"
#include "treesocket.h"
#include "treeserver.h"
#include "main.h"
/** This function is called when we want to send a netburst to a local
* server. There is a set order we must do this, because for example
* users require their servers to exist, and channels require their
* users to exist. You get the idea.
*/
void TreeSocket::DoBurst(TreeServer* s)
{
std::string servername = s->GetName();
ServerInstance->SNO->WriteToSnoMask('l',"Bursting to \2%s\2 (Authentication: %s%s).",
servername.c_str(),
capab->auth_fingerprint ? "SSL Fingerprint and " : "",
capab->auth_challenge ? "challenge-response" : "plaintext password");
this->CleanNegotiationInfo();
this->WriteLine(":" + ServerInstance->Config->GetSID() + " BURST " + ConvToStr(ServerInstance->Time()));
/* send our version string */
this->WriteLine(":" + ServerInstance->Config->GetSID() + " VERSION :"+ServerInstance->GetVersionString());
/* Send server tree */
this->SendServers(Utils->TreeRoot, s);
/* Send users and their oper status */
this->SendUsers();
for (chan_hash::const_iterator i = ServerInstance->chanlist->begin(); i != ServerInstance->chanlist->end(); ++i)
SyncChannel(i->second);
this->SendXLines();
FOREACH_MOD(I_OnSyncNetwork,OnSyncNetwork(Utils->Creator,(void*)this));
this->WriteLine(":" + ServerInstance->Config->GetSID() + " ENDBURST");
ServerInstance->SNO->WriteToSnoMask('l',"Finished bursting to \2"+ s->GetName()+"\2.");
}
/** Recursively send the server tree.
* This is used during network burst to inform the other server
* (and any of ITS servers too) of what servers we know about.
* If at any point any of these servers already exist on the other
* end, our connection may be terminated.
* The hopcount parameter (3rd) is deprecated, and is always 0.
*/
void TreeSocket::SendServers(TreeServer* Current, TreeServer* s)
{
char command[MAXBUF];
for (unsigned int q = 0; q < Current->ChildCount(); q++)
{
TreeServer* recursive_server = Current->GetChild(q);
if (recursive_server != s)
{
std::string recursive_servername = recursive_server->GetName();
snprintf(command, MAXBUF, ":%s SERVER %s * 0 %s :%s", Current->GetID().c_str(), recursive_servername.c_str(),
recursive_server->GetID().c_str(),
recursive_server->GetDesc().c_str());
this->WriteLine(command);
this->WriteLine(":"+recursive_server->GetID()+" VERSION :"+recursive_server->GetVersion());
/* down to next level */
this->SendServers(recursive_server, s);
}
}
}
/** Send one or more FJOINs for a channel of users.
* If the length of a single line is more than 480-NICKMAX
* in length, it is split over multiple lines.
* Send one or more FMODEs for a channel with the
* channel bans, if there's any.
*/
void TreeSocket::SendFJoins(Channel* c)
{
std::string line(":");
line.append(ServerInstance->Config->GetSID()).append(" FJOIN ").append(c->name).append(1, ' ').append(ConvToStr(c->age)).append(" +");
std::string::size_type erase_from = line.length();
line.append(c->ChanModes(true)).append(" :");
const UserMembList *ulist = c->GetUsers();
for (UserMembCIter i = ulist->begin(); i != ulist->end(); ++i)
{
const std::string& modestr = i->second->modes;
if ((line.length() + modestr.length() + (UUID_LENGTH-1) + 2) > 480)
{
this->WriteLine(line);
line.erase(erase_from);
line.append(" :");
}
line.append(modestr).append(1, ',').append(i->first->uuid).push_back(' ');
}
this->WriteLine(line);
ModeReference ban(NULL, "ban");
static_cast<ListModeBase*>(*ban)->DoSyncChannel(c, Utils->Creator, this);
}
/** Send all XLines we know about */
void TreeSocket::SendXLines()
{
char data[MAXBUF];
const char* sn = ServerInstance->Config->GetSID().c_str();
std::vector<std::string> types = ServerInstance->XLines->GetAllTypes();
for (std::vector<std::string>::const_iterator it = types.begin(); it != types.end(); ++it)
{
/* Expired lines are removed in XLineManager::GetAll() */
XLineLookup* lookup = ServerInstance->XLines->GetAll(*it);
/* lookup cannot be NULL in this case but a check won't hurt */
if (lookup)
{
for (LookupIter i = lookup->begin(); i != lookup->end(); ++i)
{
/* Is it burstable? this is better than an explicit check for type 'K'.
* We break the loop as NONE of the items in this group are worth iterating.
*/
if (!i->second->IsBurstable())
break;
snprintf(data,MAXBUF,":%s ADDLINE %s %s %s %lu %lu :%s",sn, it->c_str(), i->second->Displayable(),
i->second->source.c_str(),
(unsigned long)i->second->set_time,
(unsigned long)i->second->duration,
i->second->reason.c_str());
this->WriteLine(data);
}
}
}
}
/** Send channel topic, modes and metadata */
void TreeSocket::SyncChannel(Channel* chan)
{
char data[MAXBUF];
SendFJoins(chan);
// If the topic was ever set, send it, even if it's empty now
// because a new empty topic should override an old non-empty topic
if (chan->topicset != 0)
{
snprintf(data,MAXBUF,":%s FTOPIC %s %lu %lu %s :%s", ServerInstance->Config->GetSID().c_str(), chan->name.c_str(), (unsigned long) chan->age, (unsigned long)chan->topicset, chan->setby.c_str(), chan->topic.c_str());
this->WriteLine(data);
}
for (Extensible::ExtensibleStore::const_iterator i = chan->GetExtList().begin(); i != chan->GetExtList().end(); i++)
{
ExtensionItem* item = i->first;
std::string value = item->serialize(FORMAT_NETWORK, chan, i->second);
if (!value.empty())
Utils->Creator->ProtoSendMetaData(this, chan, item->name, value);
}
FOREACH_MOD(I_OnSyncChannel,OnSyncChannel(chan, Utils->Creator, this));
}
/** send all users and their oper state/modes */
void TreeSocket::SendUsers()
{
char data[MAXBUF];
std::string dataline;
for (user_hash::iterator u = ServerInstance->Users->clientlist->begin(); u != ServerInstance->Users->clientlist->end(); u++)
{
if (u->second->registered == REG_ALL)
{
TreeServer* theirserver = Utils->FindServer(u->second->server);
if (theirserver)
{
snprintf(data,MAXBUF,":%s UID %s %lu %s %s %s %s %s %lu +%s :%s",
theirserver->GetID().c_str(), /* Prefix: SID */
u->second->uuid.c_str(), /* 0: UUID */
(unsigned long)u->second->age, /* 1: TS */
u->second->nick.c_str(), /* 2: Nick */
u->second->host.c_str(), /* 3: Displayed Host */
u->second->dhost.c_str(), /* 4: Real host */
u->second->ident.c_str(), /* 5: Ident */
u->second->GetIPString().c_str(), /* 6: IP string */
(unsigned long)u->second->signon, /* 7: Signon time for WHOWAS */
u->second->FormatModes(true), /* 8...n: Modes and params */
u->second->fullname.c_str()); /* size-1: GECOS */
this->WriteLine(data);
if (u->second->IsOper())
{
snprintf(data,MAXBUF,":%s OPERTYPE %s", u->second->uuid.c_str(), u->second->oper->name.c_str());
this->WriteLine(data);
}
if (u->second->IsAway())
{
snprintf(data,MAXBUF,":%s AWAY %ld :%s", u->second->uuid.c_str(), (long)u->second->awaytime, u->second->awaymsg.c_str());
this->WriteLine(data);
}
}
for(Extensible::ExtensibleStore::const_iterator i = u->second->GetExtList().begin(); i != u->second->GetExtList().end(); i++)
{
ExtensionItem* item = i->first;
std::string value = item->serialize(FORMAT_NETWORK, u->second, i->second);
if (!value.empty())
Utils->Creator->ProtoSendMetaData(this, u->second, item->name, value);
}
FOREACH_MOD(I_OnSyncUser,OnSyncUser(u->second,Utils->Creator,this));
}
}
}
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