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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"
#include "m_spanningtree/treesocket.h"
#include "m_spanningtree/treeserver.h"
#include "m_spanningtree/utils.h"
/* $ModDep: m_spanningtree/utils.h m_spanningtree/treeserver.h m_spanningtree/treesocket.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 name = s->GetName();
std::string burst = ":" + this->ServerInstance->Config->GetSID() + " BURST " +ConvToStr(ServerInstance->Time());
std::string endburst = ":" + this->ServerInstance->Config->GetSID() + " ENDBURST";
this->ServerInstance->SNO->WriteToSnoMask('l',"Bursting to \2%s\2 (Authentication: %s).", name.c_str(), this->GetTheirChallenge().empty() ? "plaintext password" : "SHA256-HMAC challenge-response");
this->WriteLine(burst);
/* send our version string */
this->WriteLine(std::string(":")+this->ServerInstance->Config->GetSID()+" VERSION :"+this->ServerInstance->GetVersionString());
/* Send server tree */
this->SendServers(Utils->TreeRoot,s,1);
/* Send users and their oper status */
this->SendUsers(s);
/* Send everything else (channel modes, xlines etc) */
this->SendChannelModes(s);
this->SendXLines(s);
FOREACH_MOD_I(this->ServerInstance,I_OnSyncOtherMetaData,OnSyncOtherMetaData((Module*)Utils->Creator,(void*)this));
this->WriteLine(endburst);
this->ServerInstance->SNO->WriteToSnoMask('l',"Finished bursting to \2"+name+"\2.");
}
/** Recursively send the server tree with distances as hops.
* 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 hopcounts given
* by this function are relative, this doesn't matter so long as
* they are all >1, as all the remote servers re-calculate them
* to be relative too, with themselves as hop 0.
*/
void TreeSocket::SendServers(TreeServer* Current, TreeServer* s, int hops)
{
char command[1024];
for (unsigned int q = 0; q < Current->ChildCount(); q++)
{
TreeServer* recursive_server = Current->GetChild(q);
if (recursive_server != s)
{
snprintf(command,1024,":%s SERVER %s * %d %s :%s",Current->GetName().c_str(),recursive_server->GetName().c_str(),hops,
recursive_server->GetID().c_str(),
recursive_server->GetDesc().c_str());
this->WriteLine(command);
this->WriteLine(":"+recursive_server->GetName()+" VERSION :"+recursive_server->GetVersion());
/* down to next level */
this->SendServers(recursive_server, s, hops+1);
}
}
}
/** 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.
*/
void TreeSocket::SendFJoins(TreeServer* Current, Channel* c)
{
std::string buffer;
char list[MAXBUF];
size_t dlen, curlen;
dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu +%s", this->ServerInstance->Config->GetSID().c_str(), c->name.c_str(),(unsigned long)c->age, c->ChanModes(true));
int numusers = 0;
char* ptr = list + dlen;
bool looped_once = false;
CUList *ulist = c->GetUsers();
std::string modes;
std::string params;
for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
{
size_t ptrlen = 0;
std::string modestr = this->ServerInstance->Modes->ModeString(i->first, c, false);
if ((curlen + modestr.length() + i->first->uuid.length() + 4) > 480)
{
buffer.append(list).append("\r\n");
dlen = curlen = snprintf(list, MAXBUF, ":%s FJOIN %s %lu +%s", this->ServerInstance->Config->GetSID().c_str(), c->name.c_str(), (unsigned long)c->age, c->ChanModes(true));
ptr = list + dlen;
numusers = 0;
}
// The first parameter gets a : before it
ptrlen = snprintf(ptr, MAXBUF, " %s%s,%s", !numusers ? ":" : "", modestr.c_str(), i->first->uuid.c_str());
looped_once = true;
curlen += ptrlen;
ptr += ptrlen;
numusers++;
}
// Okay, permanent channels will (of course) need this \r\n anyway, numusers check is if there
// actually were people in the channel (looped_once == true)
if (!looped_once || numusers > 0)
buffer.append(list).append("\r\n");
int linesize = 1;
for (BanList::iterator b = c->bans.begin(); b != c->bans.end(); b++)
{
int size = b->data.length() + 2;
int currsize = linesize + size;
if (currsize <= 350)
{
modes.append("b");
params.append(" ").append(b->data);
linesize += size;
}
if ((params.length() >= ServerInstance->Config->Limits.MaxModes) || (currsize > 350))
{
/* Wrap at MAXMODES */
buffer.append(":").append(this->ServerInstance->Config->GetSID()).append(" FMODE ").append(c->name).append(" ").append(ConvToStr(c->age)).append(" +").append(modes).append(params).append("\r\n");
modes.clear();
params.clear();
linesize = 1;
}
}
/* Only send these if there are any */
if (!modes.empty())
buffer.append(":").append(this->ServerInstance->Config->GetSID()).append(" FMODE ").append(c->name).append(" ").append(ConvToStr(c->age)).append(" +").append(modes).append(params);
this->WriteLine(buffer);
}
/** Send G, Q, Z and E lines */
void TreeSocket::SendXLines(TreeServer* Current)
{
char data[MAXBUF];
std::string n = this->ServerInstance->Config->GetSID();
const char* sn = n.c_str();
std::vector<std::string> types = ServerInstance->XLines->GetAllTypes();
for (std::vector<std::string>::iterator it = types.begin(); it != types.end(); ++it)
{
XLineLookup* lookup = ServerInstance->XLines->GetAll(*it);
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,
(unsigned long)i->second->set_time,
(unsigned long)i->second->duration,
i->second->reason);
this->WriteLine(data);
}
}
}
}
/** Send channel modes and topics */
void TreeSocket::SendChannelModes(TreeServer* Current)
{
char data[MAXBUF];
std::deque<std::string> list;
std::string n = this->ServerInstance->Config->GetSID();
const char* sn = n.c_str();
for (chan_hash::iterator c = this->ServerInstance->chanlist->begin(); c != this->ServerInstance->chanlist->end(); c++)
{
SendFJoins(Current, c->second);
if (!c->second->topic.empty())
{
snprintf(data,MAXBUF,":%s FTOPIC %s %lu %s :%s", sn, c->second->name.c_str(), (unsigned long)c->second->topicset, c->second->setby.c_str(), c->second->topic.c_str());
this->WriteLine(data);
}
FOREACH_MOD_I(this->ServerInstance,I_OnSyncChannel,OnSyncChannel(c->second,(Module*)Utils->Creator,(void*)this));
list.clear();
c->second->GetExtList(list);
for (unsigned int j = 0; j < list.size(); j++)
{
FOREACH_MOD_I(this->ServerInstance,I_OnSyncChannelMetaData,OnSyncChannelMetaData(c->second,(Module*)Utils->Creator,(void*)this,list[j]));
}
}
}
/** send all users and their oper state/modes */
void TreeSocket::SendUsers(TreeServer* Current)
{
char data[MAXBUF];
std::deque<std::string> list;
std::string dataline;
for (user_hash::iterator u = this->ServerInstance->Users->clientlist->begin(); u != this->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(), /* 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 (IS_OPER(u->second))
{
snprintf(data,MAXBUF,":%s OPERTYPE %s", u->second->uuid.c_str(), u->second->oper.c_str());
this->WriteLine(data);
}
if (IS_AWAY(u->second))
{
snprintf(data,MAXBUF,":%s AWAY :%s", u->second->uuid.c_str(), u->second->awaymsg.c_str());
this->WriteLine(data);
}
}
FOREACH_MOD_I(this->ServerInstance,I_OnSyncUser,OnSyncUser(u->second,(Module*)Utils->Creator,(void*)this));
list.clear();
u->second->GetExtList(list);
for (unsigned int j = 0; j < list.size(); j++)
{
FOREACH_MOD_I(this->ServerInstance,I_OnSyncUserMetaData,OnSyncUserMetaData(u->second,(Module*)Utils->Creator,(void*)this,list[j]));
}
}
}
}
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