-/* +------------------------------------+
- * | Inspire Internet Relay Chat Daemon |
- * +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
*
- * InspIRCd: (C) 2002-2010 InspIRCd Development Team
- * See: http://wiki.inspircd.org/Credits
+ * Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
*
- * This program is free but copyrighted software; see
- * the file COPYING for details.
+ * 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 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)
+void TreeSocket::WriteLineNoCompat(const std::string& line)
{
- 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");
- }
- }
+ ServerInstance->Logs->Log(MODNAME, LOG_RAWIO, "S[%d] O %s", this->GetFd(), line.c_str());
+ this->WriteData(line);
+ this->WriteData(newline);
}
-void TreeSocket::WriteLine(std::string line)
+void TreeSocket::WriteLine(const std::string& original_line)
{
if (LinkState == CONNECTED)
{
- if (line[0] != ':')
+ if (original_line.c_str()[0] != ':')
{
- ServerInstance->Logs->Log("m_spanningtree", DEFAULT, "Sending line without server prefix!");
- line = ":" + ServerInstance->Config->GetSID() + " " + line;
+ ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, "Sending line without server prefix!");
+ WriteLine(":" + ServerInstance->Config->GetSID() + " " + original_line);
+ return;
}
if (proto_version != ProtocolVersion)
{
+ std::string line = original_line;
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);
+ std::string command(line, 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")
+ if (proto_version < 1205)
{
- 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)
+ if (command == "IJOIN")
{
- ServerInstance->Logs->Log("m_spanningtree",DEBUG,"Stripping AWAY timestamp for 1201-protocol server");
+ // Convert
+ // :<uid> IJOIN <chan> <membid> [<ts> [<flags>]]
+ // to
+ // :<sid> FJOIN <chan> <ts> + [<flags>],<uuid>
std::string::size_type c = line.find(' ', b + 1);
- line.erase(b,c-b);
+ if (c == std::string::npos)
+ return;
+
+ std::string::size_type d = line.find(' ', c + 1);
+ // Erase membership id first
+ line.erase(c, d-c);
+ if (d == std::string::npos)
+ {
+ // No TS or modes in the command
+ // :22DAAAAAB IJOIN #chan
+ const std::string channame(line, b+1, c-b-1);
+ Channel* chan = ServerInstance->FindChan(channame);
+ if (!chan)
+ return;
+
+ line.push_back(' ');
+ line.append(ConvToStr(chan->age));
+ line.append(" + ,");
+ }
+ else
+ {
+ 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 (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)
+ else if (command == "RESYNC")
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);
+ else if (command == "METADATA")
+ {
+ // Drop TS for channel METADATA, translate METADATA operquit into an OPERQUIT command
+ // :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;
+
+ std::string::size_type d = line.find(' ', c + 1);
+ if (d == std::string::npos)
+ return;
+
+ if (line[b + 1] == '#')
+ {
+ // We're sending channel metadata
+ line.erase(c, d-c);
+ }
+ else if (!line.compare(c, d-c, " operquit", 9))
+ {
+ // ":22D METADATA 22DAAAAAX operquit :message" -> ":22DAAAAAX OPERQUIT :message"
+ line = ":" + line.substr(b+1, c-b) + "OPERQUIT" + line.substr(d);
+ }
+ }
+ else if (command == "FTOPIC")
+ {
+ // Drop channel TS for FTOPIC
+ // :sid FTOPIC #target TS TopicTS setter :newtopic
+ // A B C D E F
+ // :uid FTOPIC #target TS TopicTS :newtopic
+ // A B C D E
+ if (b == std::string::npos)
+ return;
- if (subcmd == "CHGIDENT" && d != std::string::npos)
+ 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;
+
+ std::string::size_type e = line.find(' ', d + 1);
+ if (line[e+1] == ':')
+ {
+ line.erase(c, e-c);
+ line.erase(a+1, 1);
+ }
+ else
+ 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);
+ }
+ }
+ else if (command == "INVITE")
{
+ // :22D INVITE 22DAAAAAN #chan TS ExpirationTime
+ // A B C D E
+ 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;
+
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);
+ // If there is no expiration time then everything will be erased from 'd'
+ line.erase(d, e-d);
+ }
+ else if (command == "FJOIN")
+ {
+ // Strip membership ids
+ // :22D FJOIN #chan 1234 +f 4:3 :o,22DAAAAAB:15 o,22DAAAAAA:15
+ // :22D FJOIN #chan 1234 +f 4:3 o,22DAAAAAB:15
+ // :22D FJOIN #chan 1234 +Pf 4:3 :
- ServerInstance->Logs->Log("m_spanningtree",DEBUG,"Forging acceptance of CHGIDENT from 1201-protocol server");
- recvq.insert(0, ":" + target + " FIDENT " + line.substr(e) + "\n");
+ // If the last parameter is prefixed by a colon then it's a userlist which may have 0 or more users;
+ // if it isn't, then it is a single member
+ std::string::size_type spcolon = line.find(" :");
+ if (spcolon != std::string::npos)
+ {
+ spcolon++;
+ // Loop while there is a ':' in the userlist, this is never true if the channel is empty
+ std::string::size_type pos = std::string::npos;
+ while ((pos = line.rfind(':', pos-1)) > spcolon)
+ {
+ // Find the next space after the ':'
+ std::string::size_type sp = line.find(' ', pos);
+ // Erase characters between the ':' and the next space after it, including the ':' but not the space;
+ // if there is no next space, everything will be erased between pos and the end of the line
+ line.erase(pos, sp-pos);
+ }
+ }
+ else
+ {
+ // Last parameter is a single member
+ std::string::size_type sp = line.rfind(' ');
+ std::string::size_type colon = line.find(':', sp);
+ line.erase(colon);
+ }
}
+ else if (command == "KICK")
+ {
+ // Strip membership id if the KICK has one
+ if (b == std::string::npos)
+ return;
+
+ std::string::size_type c = line.find(' ', b + 1);
+ if (c == std::string::npos)
+ return;
- Command* thiscmd = ServerInstance->Parser->GetHandler(subcmd);
- if (thiscmd && subcmd != "WHOISNOTICE")
+ std::string::size_type d = line.find(' ', c + 1);
+ if ((d < line.size()-1) && (original_line[d+1] != ':'))
+ {
+ // There is a third parameter which doesn't begin with a colon, erase it
+ std::string::size_type e = line.find(' ', d + 1);
+ line.erase(d, e-d);
+ }
+ }
+ else if (command == "SINFO")
+ {
+ // :22D SINFO version :InspIRCd-2.2
+ // A B C
+ std::string::size_type c = line.find(' ', b + 1);
+ if (c == std::string::npos)
+ return;
+
+ // Only translating SINFO version, discard everything else
+ if (line.compare(b, 9, " version ", 9))
+ return;
+
+ line = line.substr(0, 5) + "VERSION" + line.substr(c);
+ }
+ else if (command == "SERVER")
{
- Version ver = thiscmd->creator->GetVersion();
- if (ver.Flags & VF_OPTCOMMON)
+ // :001 SERVER inspircd.test 002 [<anything> ...] :gecos
+ // A B C
+ std::string::size_type c = line.find(' ', b + 1);
+ if (c == std::string::npos)
+ return;
+
+ std::string::size_type d = c + 4;
+ std::string::size_type spcolon = line.find(" :", d);
+ if (spcolon == std::string::npos)
+ return;
+
+ line.erase(d, spcolon-d);
+ line.insert(c, " * 0");
+
+ if (burstsent)
{
- ServerInstance->Logs->Log("m_spanningtree",DEBUG,"Removing ENCAP on '%s' for 1201-protocol server",
- subcmd.c_str());
- line.erase(a, c-a);
+ WriteLineNoCompat(line);
+
+ // Synthesize a :<newserver> BURST <time> message
+ spcolon = line.find(" :");
+ line = CmdBuilder(line.substr(spcolon-3, 3), "BURST").push_int(ServerInstance->Time()).str();
}
}
}
+ WriteLineNoCompat(line);
+ return;
}
}
- ServerInstance->Logs->Log("m_spanningtree",DEBUG, "S[%d] O %s", this->GetFd(), line.c_str());
- this->WriteData(line);
- if (proto_version < 1202)
- this->WriteData(wide_newline);
- else
- this->WriteData(newline);
+ WriteLineNoCompat(original_line);
+}
+
+namespace
+{
+ bool InsertCurrentChannelTS(std::vector<std::string>& params, unsigned int chanindex = 0, unsigned int pos = 1)
+ {
+ Channel* chan = ServerInstance->FindChan(params[chanindex]);
+ if (!chan)
+ return false;
+
+ // Insert the current TS of the channel after the pos-th parameter
+ params.insert(params.begin()+pos, 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(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);
+ }
+ }
+ else if ((cmd == "SERVER") && (params.size() > 4))
+ {
+ // This does not affect the initial SERVER line as it is sent before the link state is CONNECTED
+ // :20D SERVER <name> * 0 <sid> <desc>
+ // change to
+ // :20D SERVER <name> <sid> <desc>
+
+ params[1].swap(params[3]);
+ params.erase(params.begin()+2, params.begin()+4);
+
+ // If the source of this SERVER message is not bursting, then new servers it introduces are bursting
+ TreeServer* server = TreeServer::Get(who);
+ if (!server->IsBursting())
+ params.insert(params.begin()+2, "burst=" + ConvToStr(((uint64_t)ServerInstance->Time())*1000));
+ }
+ else if (cmd == "BURST")
+ {
+ // A server is introducing another one, drop unnecessary BURST
+ return false;
+ }
+
+ return true; // Passthru
}