bool TreeSocket::PreProcessOldProtocolMessage(User*& who, std::string& cmd, std::vector<std::string>& params)
{
if ((cmd == "METADATA") && (params.size() >= 3))
{
// :20D METADATA #channel extname :extdata
return InsertCurrentChannelTS(params);
}
else if ((cmd == "FTOPIC") && (params.size() >= 4))
{
// :20D FTOPIC #channel 100 Attila :topic text
return InsertCurrentChannelTS(params);
}
else if ((cmd == "PING") || (cmd == "PONG"))
{
if (params.size() == 1)
{
// If it's a PING with 1 parameter, reply with a PONG now, if it's a PONG with 1 parameter (weird), do nothing
if (cmd[1] == 'I')
this->WriteData(":" + ServerInstance->Config->GetSID() + " PONG " + params[0] + newline);
// Don't process this message further
return false;
}
// :20D PING 20D 22D
// :20D PONG 20D 22D
// Drop the first parameter
params.erase(params.begin());
// If the target is a server name, translate it to a SID
if (!InspIRCd::IsSID(params[0]))
{
TreeServer* server = Utils->FindServer(params[0]);
if (!server)
{
// We've no idea what this is, log and stop processing
ServerInstance->Logs->Log("m_spanningtree", LOG_DEFAULT, "Received a " + cmd + " with an unknown target: \"" + params[0] + "\", command dropped");
return false;
}
params[0] = server->GetID();
}
}
return true; // Passthru
}
bool TreeSocket::PreProcessOldProtocolMessage(User*& who, std::string& cmd, std::vector<std::string>& params)
{
if ((cmd == "METADATA") && (params.size() >= 3) && (params[0][0] == '#'))
{
// :20D METADATA #channel extname :extdata
return InsertCurrentChannelTS(params);
}
else if ((cmd == "FTOPIC") && (params.size() >= 4))
{
// :20D FTOPIC #channel 100 Attila :topic text
return InsertCurrentChannelTS(params);
}
else if ((cmd == "PING") || (cmd == "PONG"))
{
if (params.size() == 1)
{
// If it's a PING with 1 parameter, reply with a PONG now, if it's a PONG with 1 parameter (weird), do nothing
if (cmd[1] == 'I')
this->WriteData(":" + ServerInstance->Config->GetSID() + " PONG " + params[0] + newline);
// Don't process this message further
return false;
}
// :20D PING 20D 22D
// :20D PONG 20D 22D
// Drop the first parameter
params.erase(params.begin());
// If the target is a server name, translate it to a SID
if (!InspIRCd::IsSID(params[0]))
{
TreeServer* server = Utils->FindServer(params[0]);
if (!server)
{
// We've no idea what this is, log and stop processing
ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, "Received a " + cmd + " with an unknown target: \"" + params[0] + "\", command dropped");
return false;
}
params[0] = server->GetID();
}
}
else if ((cmd == "GLINE") || (cmd == "KLINE") || (cmd == "ELINE") || (cmd == "ZLINE") || (cmd == "QLINE"))
{
// Fix undocumented protocol usage: translate GLINE, ZLINE, etc. into ADDLINE or DELLINE
if ((params.size() != 1) && (params.size() != 3))
return false;
parameterlist p;
p.push_back(cmd.substr(0, 1));
p.push_back(params[0]);
if (params.size() == 3)
{
cmd = "ADDLINE";
p.push_back(who->nick);
p.push_back(ConvToStr(ServerInstance->Time()));
p.push_back(ConvToStr(InspIRCd::Duration(params[1])));
p.push_back(params[2]);
}
else
cmd = "DELLINE";
params.swap(p);
}
else if (cmd == "SVSMODE")
{
cmd = "MODE";
}
else if (cmd == "OPERQUIT")
{
// Translate OPERQUIT into METADATA
if (params.empty())
return false;
cmd = "METADATA";
params.insert(params.begin(), who->uuid);
params.insert(params.begin()+1, "operquit");
who = MyRoot->ServerUser;
}
else if ((cmd == "TOPIC") && (params.size() >= 2))
{
// :20DAAAAAC TOPIC #chan :new topic
cmd = "FTOPIC";
if (!InsertCurrentChannelTS(params))
return false;
params.insert(params.begin()+2, ConvToStr(ServerInstance->Time()));
}
else if (cmd == "MODENOTICE")
{
// MODENOTICE is always supported by 2.0 but it's optional in 2.2.
params.insert(params.begin(), "*");
params.insert(params.begin()+1, cmd);
cmd = "ENCAP";
}
else if (cmd == "RULES")
{
return false;
}
else if (cmd == "INVITE")
{
// :20D INVITE 22DAAABBB #chan
// :20D INVITE 22DAAABBB #chan 123456789
// Insert channel timestamp after the channel name; the 3rd parameter, if there, is the invite expiration time
return InsertCurrentChannelTS(params, 1, 2);
}
else if (cmd == "VERSION")
{
// :20D VERSION :InspIRCd-2.0
// change to
// :20D SINFO version :InspIRCd-2.0
cmd = "SINFO";
params.insert(params.begin(), "version");
}
else if (cmd == "JOIN")
{
// 2.0 allows and forwards legacy JOINs but we don't, so translate them to FJOINs before processing
if ((params.size() != 1) || (IS_SERVER(who)))
return false; // Huh?
cmd = "FJOIN";
Channel* chan = ServerInstance->FindChan(params[0]);
params.push_back(ConvToStr(chan ? chan->age : ServerInstance->Time()));
params.push_back("+");
params.push_back(",");
params.back().append(who->uuid);
who = TreeServer::Get(who)->ServerUser;
}
else if ((cmd == "FMODE") && (params.size() >= 2))
{
// Translate user mode changes with timestamp to MODE
if (params[0][0] != '#')
{
User* user = ServerInstance->FindUUID(params[0]);
if (!user)
return false;
// Emulate the old nonsensical behavior
if (user->age < ServerCommand::ExtractTS(params[1]))
return false;
cmd = "MODE";
params.erase(params.begin()+1);
}
}
return true; // Passthru
}