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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 "command_parse.h"
#include "main.h"
#include "treesocket.h"
static const char* const forge_common_1201[] = {
"m_allowinvite.so",
"m_alltime.so",
"m_auditorium.so",
"m_banexception.so",
"m_blockcaps.so",
"m_blockcolor.so",
"m_botmode.so",
"m_censor.so",
"m_chanfilter.so",
"m_chanhistory.so",
"m_channelban.so",
"m_chanprotect.so",
"m_chghost.so",
"m_chgname.so",
"m_commonchans.so",
"m_customtitle.so",
"m_deaf.so",
"m_delayjoin.so",
"m_delaymsg.so",
"m_exemptchanops.so",
"m_gecosban.so",
"m_globops.so",
"m_helpop.so",
"m_hidechans.so",
"m_hideoper.so",
"m_invisible.so",
"m_inviteexception.so",
"m_joinflood.so",
"m_kicknorejoin.so",
"m_knock.so",
"m_messageflood.so",
"m_muteban.so",
"m_nickflood.so",
"m_nicklock.so",
"m_noctcp.so",
"m_nokicks.so",
"m_nonicks.so",
"m_nonotice.so",
"m_nopartmsg.so",
"m_ojoin.so",
"m_operprefix.so",
"m_permchannels.so",
"m_redirect.so",
"m_regex_glob.so",
"m_regex_pcre.so",
"m_regex_posix.so",
"m_regex_tre.so",
"m_remove.so",
"m_sajoin.so",
"m_sakick.so",
"m_sanick.so",
"m_sapart.so",
"m_saquit.so",
"m_serverban.so",
"m_services_account.so",
"m_servprotect.so",
"m_setident.so",
"m_showwhois.so",
"m_silence.so",
"m_sslmodes.so",
"m_stripcolor.so",
"m_swhois.so",
"m_uninvite.so",
"m_watch.so"
};
static std::string wide_newline("\r\n");
static std::string newline("\n");
void TreeSocket::CompatAddModules(std::vector<std::string>& modlist)
{
if (proto_version < 1202)
{
// you MUST have chgident loaded in order to be able to translate FIDENT
modlist.push_back("m_chgident.so");
for(int i=0; i * sizeof(char*) < sizeof(forge_common_1201); i++)
{
if (ServerInstance->Modules->Find(forge_common_1201[i]))
modlist.push_back(forge_common_1201[i]);
}
// module was merged
if (ServerInstance->Modules->Find("m_operchans.so"))
{
modlist.push_back("m_operchans.so");
modlist.push_back("m_operinvex.so");
}
}
}
void TreeSocket::WriteLine(std::string line)
{
if (LinkState == CONNECTED && line[0] != ':')
{
ServerInstance->Logs->Log("m_spanningtree", DEFAULT, "Sending line without server prefix!");
line = ":" + ServerInstance->Config->GetSID() + " " + line;
}
if (proto_version != ProtocolVersion)
{
std::string::size_type a = line.find(' ');
if (line[0] != ':')
a = std::string::npos;
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 < 1202 && command == "FIDENT")
{
ServerInstance->Logs->Log("m_spanningtree",DEBUG,"Rewriting FIDENT for 1201-protocol server");
line = ":" + ServerInstance->Config->GetSID() + " CHGIDENT " + line.substr(1,a-1) + line.substr(b);
}
else if (proto_version < 1202 && command == "SAVE")
{
ServerInstance->Logs->Log("m_spanningtree",DEBUG,"Rewriting SAVE for 1201-protocol server");
std::string::size_type c = line.find(' ', b + 1);
std::string uid = line.substr(b, c - b);
line = ":" + ServerInstance->Config->GetSID() + " SVSNICK" + uid + line.substr(b);
}
else if (proto_version < 1202 && command == "AWAY")
{
if (b != std::string::npos)
{
ServerInstance->Logs->Log("m_spanningtree",DEBUG,"Stripping AWAY timestamp for 1201-protocol server");
std::string::size_type c = line.find(' ', b + 1);
line.erase(b,c-b);
}
}
else if (proto_version < 1203 && command == "RESYNC")
{
// drop the command. 2.0 and earlier cannot automatically recover from desync
return;
}
else if (proto_version < 1203 && command == "FMODE")
{
// Need to down-convert new merge-mode syntax:
// :src FMODE #chan TS =modes params....
// 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;
if (line[d + 1] == '=')
line[d + 1] = '+';
}
else if (proto_version < 1202 && command == "ENCAP")
{
// :src ENCAP target command [args...]
// A B C D
// Therefore B and C cannot be npos in a valid command
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);
std::string subcmd = line.substr(c + 1, d - c - 1);
if (subcmd == "CHGIDENT" && d != std::string::npos)
{
std::string::size_type e = line.find(' ', d + 1);
if (e == std::string::npos)
return; // not valid
std::string target = line.substr(d + 1, e - d - 1);
ServerInstance->Logs->Log("m_spanningtree",DEBUG,"Forging acceptance of CHGIDENT from 1201-protocol server");
recvq.insert(0, ":" + target + " FIDENT " + line.substr(e) + "\n");
}
Command* thiscmd = ServerInstance->Parser->GetHandler(subcmd);
if (thiscmd && subcmd != "WHOISNOTICE")
{
Version ver = thiscmd->creator->GetVersion();
if (ver.Flags & VF_OPTCOMMON)
{
ServerInstance->Logs->Log("m_spanningtree",DEBUG,"Removing ENCAP on '%s' for 1201-protocol server",
subcmd.c_str());
line.erase(a, c-a);
}
}
}
else if (proto_version < 1204 && 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 a channel metadata indeed
std::string::size_type d = line.find(' ', c + 1);
if (d == std::string::npos)
return;
ServerInstance->Logs->Log("m_spanningtree", DEBUG, "Stripping channel TS in METADATA for pre-1204-protocol server");
line.erase(c, d-c);
}
}
else if (proto_version < 1204 && 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;
ServerInstance->Logs->Log("m_spanningtree", DEBUG, "Stripping channel TS in FTOPIC for pre-1204-protocol server");
line.erase(c, d-c);
}
}
ServerInstance->Logs->Log("m_spanningtree", RAWIO, "S[%d] O %s", this->GetFd(), line.c_str());
this->WriteData(line);
if (proto_version < 1202)
this->WriteData(wide_newline);
else
this->WriteData(newline);
}
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