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/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
*
* 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 "main.h"
#include "treesocket.h"
#include "treeserver.h"
static std::string newline("\n");
void TreeSocket::WriteLine(std::string line)
{
if (LinkState == CONNECTED)
{
if (line[0] != ':')
{
ServerInstance->Logs->Log("m_spanningtree", LOG_DEFAULT, "Sending line without server prefix!");
line = ":" + ServerInstance->Config->GetSID() + " " + line;
}
if (proto_version != ProtocolVersion)
{
std::string::size_type a = line.find(' ');
std::string::size_type b = line.find(' ', a + 1);
std::string command = line.substr(a + 1, b-a-1);
// now try to find a translation entry
// TODO a more efficient lookup method will be needed later
if (proto_version < 1205)
{
if (command == "IJOIN")
{
// Convert
// :<uid> IJOIN <chan> [<ts> [<flags>]]
// to
// :<sid> FJOIN <chan> <ts> + [<flags>],<uuid>
std::string::size_type c = line.find(' ', b + 1);
if (c == std::string::npos)
{
// No TS or modes in the command
// :22DAAAAAB IJOIN #chan
const std::string channame = line.substr(b+1, c-b-1);
Channel* chan = ServerInstance->FindChan(channame);
if (!chan)
return;
line.push_back(' ');
line.append(ConvToStr(chan->age));
line.append(" + ,");
}
else
{
std::string::size_type d = line.find(' ', c + 1);
if (d == std::string::npos)
{
// TS present, no modes
// :22DAAAAAC IJOIN #chan 12345
line.append(" + ,");
}
else
{
// Both TS and modes are present
// :22DAAAAAC IJOIN #chan 12345 ov
std::string::size_type e = line.find(' ', d + 1);
if (e != std::string::npos)
line.erase(e);
line.insert(d, " +");
line.push_back(',');
}
}
// Move the uuid to the end and replace the I with an F
line.append(line.substr(1, 9));
line.erase(4, 6);
line[5] = 'F';
}
else if (command == "RESYNC")
return;
else if (command == "METADATA")
{
// Drop TS for channel METADATA
// :sid METADATA #target TS extname ...
// A B C D
if (b == std::string::npos)
return;
std::string::size_type c = line.find(' ', b + 1);
if (c == std::string::npos)
return;
if (line[b + 1] == '#')
{
// We're sending channel metadata
std::string::size_type d = line.find(' ', c + 1);
if (d == std::string::npos)
return;
line.erase(c, d-c);
}
}
else if (command == "FTOPIC")
{
// Drop channel TS for FTOPIC
// :sid FTOPIC #target TS TopicTS ...
// A B C D
if (b == std::string::npos)
return;
std::string::size_type c = line.find(' ', b + 1);
if (c == std::string::npos)
return;
std::string::size_type d = line.find(' ', c + 1);
if (d == std::string::npos)
return;
line.erase(c, d-c);
}
else if ((command == "PING") || (command == "PONG"))
{
// :22D PING 20D
if (line.length() < 13)
return;
// Insert the source SID (and a space) between the command and the first parameter
line.insert(10, line.substr(1, 4));
}
else if (command == "OPERTYPE")
{
std::string::size_type colon = line.find(':', b);
if (colon != std::string::npos)
{
for (std::string::iterator i = line.begin()+colon; i != line.end(); ++i)
{
if (*i == ' ')
*i = '_';
}
line.erase(colon, 1);
}
}
}
}
}
ServerInstance->Logs->Log("m_spanningtree", LOG_RAWIO, "S[%d] O %s", this->GetFd(), line.c_str());
this->WriteData(line);
this->WriteData(newline);
}
namespace
{
bool InsertCurrentChannelTS(std::vector<std::string>& params)
{
Channel* chan = ServerInstance->FindChan(params[0]);
if (!chan)
return false;
// Insert the current TS of the channel between the first and the second parameters
params.insert(params.begin()+1, ConvToStr(chan->age));
return true;
}
}
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("m_spanningtree", 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";
}
return true; // Passthru
}
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