bool TreeSocket::CheckDuplicate(const std::string& sname, const std::string& sid)
{
// Check if the server name is not in use by a server that's already fully connected
TreeServer* CheckDupe = Utils->FindServer(sname);
if (CheckDupe)
{
std::string pname = CheckDupe->GetParent() ? CheckDupe->GetParent()->GetName() : "<ourself>";
SendError("Server "+sname+" already exists on server "+pname+"!");
ServerInstance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists on server "+pname);
return false;
}
// Check if the id is not in use by a server that's already fully connected
ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Looking for dupe SID %s", sid.c_str());
CheckDupe = Utils->FindServerID(sid);
if (CheckDupe)
{
this->SendError("Server ID "+CheckDupe->GetID()+" already exists on server "+CheckDupe->GetName()+"! You may want to specify the server ID for the server manually with <server:id> so they do not conflict.");
ServerInstance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server ID '"+CheckDupe->GetID()+
"' already exists on server "+CheckDupe->GetName());
return false;
}
return true;
}
bool TreeSocket::CheckDuplicate(const std::string& sname, const std::string& sid)
{
/* Check for fully initialized instances of the server by name */
TreeServer* CheckDupe = Utils->FindServer(sname);
if (CheckDupe)
{
std::string pname = CheckDupe->GetParent() ? CheckDupe->GetParent()->GetName() : "<ourself>";
SendError("Server "+sname+" already exists on server "+pname+"!");
ServerInstance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists on server "+pname);
return false;
}
/* Check for fully initialized instances of the server by id */
ServerInstance->Logs->Log("m_spanningtree",DEBUG,"Looking for dupe SID %s", sid.c_str());
CheckDupe = Utils->FindServerID(sid);
if (CheckDupe)
{
this->SendError("Server ID "+CheckDupe->GetID()+" already exists on server "+CheckDupe->GetName()+"! You may want to specify the server ID for the server manually with <server:id> so they do not conflict.");
ServerInstance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server ID '"+CheckDupe->GetID()+
"' already exists on server "+CheckDupe->GetName());
return false;
}
return true;
}
CmdResult CommandSQuit::HandleServer(TreeServer* server, std::vector<std::string>& params)
{
TreeServer* quitting = Utils->FindServer(params[0]);
if (!quitting)
{
ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, "Squit from unknown server");
return CMD_FAILURE;
}
CmdResult ret = CMD_SUCCESS;
if (quitting == server)
{
ret = CMD_FAILURE;
server = server->GetParent();
}
else if (quitting->GetParent() != server)
throw ProtocolException("Attempted to SQUIT a non-directly connected server or the parent");
server->SQuitChild(quitting, params[1]);
// XXX: Return CMD_FAILURE when servers SQUIT themselves (i.e. :00S SQUIT 00S :Shutting down)
// to stop this message from being forwarded.
// The squit logic generates a SQUIT message with our sid as the source and sends it to the
// remaining servers.
return ret;
}
ModResult ModuleSpanningTree::HandleConnect(const CommandBase::Params& parameters, User* user)
{
for (std::vector<reference<Link> >::iterator i = Utils->LinkBlocks.begin(); i < Utils->LinkBlocks.end(); i++)
{
Link* x = *i;
if (InspIRCd::Match(x->Name, parameters[0], ascii_case_insensitive_map))
{
if (InspIRCd::Match(ServerInstance->Config->ServerName, x->Name, ascii_case_insensitive_map))
{
user->WriteRemoteNotice(InspIRCd::Format("*** CONNECT: Server \002%s\002 is ME, not connecting.", x->Name.c_str()));
return MOD_RES_DENY;
}
TreeServer* CheckDupe = Utils->FindServer(x->Name);
if (!CheckDupe)
{
user->WriteRemoteNotice(InspIRCd::Format("*** CONNECT: Connecting to server: \002%s\002 (%s:%d)", x->Name.c_str(), (x->HiddenFromStats ? "<hidden>" : x->IPAddr.c_str()), x->Port));
ConnectServer(x);
return MOD_RES_DENY;
}
else
{
user->WriteRemoteNotice(InspIRCd::Format("*** CONNECT: Server \002%s\002 already exists on the network and is connected via \002%s\002", x->Name.c_str(), CheckDupe->GetParent()->GetName().c_str()));
return MOD_RES_DENY;
}
}
}
user->WriteRemoteNotice(InspIRCd::Format("*** CONNECT: No server matching \002%s\002 could be found in the config file.", parameters[0].c_str()));
return MOD_RES_DENY;
}
/*
* This is used after the other side of a connection has accepted our credentials.
* They are then introducing themselves to us, BEFORE either of us burst. -- w
*/
bool TreeSocket::Outbound_Reply_Server(parameterlist ¶ms)
{
if (params.size() < 5)
{
SendError("Protocol error - Not enough parameters for SERVER command");
return false;
}
irc::string servername = params[0].c_str();
std::string sname = params[0];
std::string password = params[1];
std::string sid = params[3];
std::string description = params[4];
int hops = atoi(params[2].c_str());
this->SendCapabilities(2);
if (hops)
{
this->SendError("Server too far away for authentication");
ServerInstance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
return false;
}
if (!ServerInstance->IsSID(sid))
{
this->SendError("Invalid format server ID: "+sid+"!");
return false;
}
for (std::vector<reference<Link> >::iterator i = Utils->LinkBlocks.begin(); i < Utils->LinkBlocks.end(); i++)
{
Link* x = *i;
if (x->Name != servername && x->Name != "*") // open link allowance
continue;
if (!ComparePass(*x, password))
{
ServerInstance->SNO->WriteToSnoMask('l',"Invalid password on link: %s", x->Name.c_str());
continue;
}
TreeServer* CheckDupe = Utils->FindServer(sname);
if (CheckDupe)
{
std::string pname = CheckDupe->GetParent() ? CheckDupe->GetParent()->GetName() : "<ourself>";
SendError("Server "+sname+" already exists on server "+pname+"!");
ServerInstance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists on server "+pname);
return false;
}
CheckDupe = Utils->FindServer(sid);
if (CheckDupe)
{
this->SendError("Server ID "+sid+" already exists on the network! You may want to specify the server ID for the server manually with <server:id> so they do not conflict.");
ServerInstance->SNO->WriteToSnoMask('l',"Server \2"+assign(servername)+"\2 being introduced denied, server ID already exists on the network. Closing link.");
return false;
}
/*
* They're in WAIT_AUTH_2 (having accepted our credentials).
* Set our state to CONNECTED (since everything's peachy so far) and send our
* netburst to them, which will trigger their CONNECTED state, and BURST in reply.
*
* While we're at it, create a treeserver object so we know about them.
* -- w
*/
this->LinkState = CONNECTED;
Utils->timeoutlist.erase(this);
linkID = sname;
MyRoot = new TreeServer(Utils, sname, description, sid, Utils->TreeRoot, this, x->Hidden);
Utils->TreeRoot->AddChild(MyRoot);
this->DoBurst(MyRoot);
params[4] = ":" + params[4];
/* IMPORTANT: Take password/hmac hash OUT of here before we broadcast the introduction! */
params[1] = "*";
Utils->DoOneToAllButSender(ServerInstance->Config->GetSID(),"SERVER",params,sname);
return true;
}
this->SendError("Invalid credentials (check the other server's linking snomask for more information)");
ServerInstance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, invalid link credentials");
return false;
}
int ModuleSpanningTree::HandleConnect(const std::vector<std::string>& parameters, User* user)
{
for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
{
if (InspIRCd::Match(x->Name.c_str(),parameters[0]))
{
if (InspIRCd::Match(ServerInstance->Config->ServerName, assign(x->Name)))
{
RemoteMessage(user, "*** CONNECT: Server \002%s\002 is ME, not connecting.",x->Name.c_str());
return 1;
}
TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
if (!CheckDupe)
{
RemoteMessage(user, "*** CONNECT: Connecting to server: \002%s\002 (%s:%d)",x->Name.c_str(),(x->HiddenFromStats ? "<hidden>" : x->IPAddr.c_str()),x->Port);
ConnectServer(&(*x));
return 1;
}
else
{
RemoteMessage(user, "*** CONNECT: Server \002%s\002 already exists on the network and is connected via \002%s\002",x->Name.c_str(),CheckDupe->GetParent()->GetName().c_str());
return 1;
}
}
}
RemoteMessage(user, "*** CONNECT: No server matching \002%s\002 could be found in the config file.",parameters[0].c_str());
return 1;
}
int ModuleSpanningTree::HandleConnect(const char** parameters, int pcnt, userrec* user)
{
for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
{
if (ServerInstance->MatchText(x->Name.c_str(),parameters[0]))
{
TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
if (!CheckDupe)
{
user->WriteServ("NOTICE %s :*** CONNECT: Connecting to server: \002%s\002 (%s:%d)",user->nick,x->Name.c_str(),(x->HiddenFromStats ? "<hidden>" : x->IPAddr.c_str()),x->Port);
ConnectServer(&(*x));
return 1;
}
else
{
user->WriteServ("NOTICE %s :*** CONNECT: Server \002%s\002 already exists on the network and is connected via \002%s\002",user->nick,x->Name.c_str(),CheckDupe->GetParent()->GetName().c_str());
return 1;
}
}
}
user->WriteServ("NOTICE %s :*** CONNECT: No server matching \002%s\002 could be found in the config file.",user->nick,parameters[0]);
return 1;
}