-/* +------------------------------------+
- * | Inspire Internet Relay Chat Daemon |
- * +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
*
- * InspIRCd: (C) 2002-2009 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_chghost.so",
- "m_chgname.so",
- "m_remove.so",
- "m_sajoin.so",
- "m_sakick.so",
- "m_sanick.so",
- "m_sapart.so",
- "m_saquit.so",
- "m_setident.so",
- "m_swhois.so",
-};
-
-static std::string wide_newline("\r\n");
-
-void TreeSocket::CompatAddModules(std::vector<std::string>& modlist)
+static std::string newline("\n");
+
+void TreeSocket::WriteLineNoCompat(const std::string& line)
{
- if (proto_version < 1202)
- {
- for(std::vector<std::string>::iterator i = modlist.begin(); i != modlist.end(); ++i)
- {
- if (*i == "m_halfop.so")
- {
- modlist.erase(i);
- break;
- }
- }
- // 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_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] != ':')
- {
- ServerInstance->Logs->Log("m_spanningtree", DEFAULT, "Sending line without server prefix!");
- line = ":" + ServerInstance->Config->GetSID() + " " + line;
- }
if (proto_version != ProtocolVersion)
{
+ std::string line = original_line;
std::string::size_type a = line.find(' ');
+ if (line[0] == '@')
+ {
+ // The line contains tags which the 1202 protocol can't handle.
+ line.erase(0, a);
+ 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")
- {
- 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")
+ if (proto_version < 1205)
{
- 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, d - c);
- Command* thiscmd = ServerInstance->Parser->GetHandler(subcmd);
- if (thiscmd)
+ 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")
{
- Version ver = thiscmd->creator->GetVersion();
- if (ver.Flags & VF_OPTCOMMON)
+ // 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;
+
+ 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] == ':')
{
- ServerInstance->Logs->Log("m_spanningtree",DEBUG,"Removing ENCAP on '%s' for 1201-protocol server",
- subcmd.c_str());
- line.erase(a, c-a);
+ 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 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 :
+
+ // 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;
+
+ 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-3.0
+ // 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")
+ {
+ // :001 SERVER inspircd.test 002 [<anything> ...] :description
+ // 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)
+ {
+ WriteLineNoCompat(line);
+
+ // Synthesize a :<newserver> BURST <time> message
+ spcolon = line.find(" :");
+ line = CmdBuilder(line.substr(spcolon-3, 3), "BURST").push_int(ServerInstance->Time()).str();
+ }
+ }
+ else if (command == "NUM")
+ {
+ // :<sid> NUM <numeric source sid> <target uuid> <3 digit number> <params>
+ // Translate to
+ // :<sid> PUSH <target uuid> :<numeric source name> <3 digit number> <target nick> <params>
+
+ TreeServer* const numericsource = Utils->FindServerID(line.substr(9, 3));
+ if (!numericsource)
+ return;
+
+ // The nick of the target is necessary for building the PUSH message
+ User* const target = ServerInstance->FindUUID(line.substr(13, UIDGenerator::UUID_LENGTH));
+ if (!target)
+ return;
+
+ std::string push = InspIRCd::Format(":%.*s PUSH %s ::%s %.*s %s", 3, line.c_str()+1, target->uuid.c_str(), numericsource->GetName().c_str(), 3, line.c_str()+23, target->nick.c_str());
+ push.append(line, 26, std::string::npos);
+ push.swap(line);
+ }
+ else if (command == "TAGMSG")
+ {
+ // Drop IRCv3 tag messages as v2 has no message tag support.
+ return;
}
}
+ WriteLineNoCompat(line);
+ return;
}
}
- ServerInstance->Logs->Log("m_spanningtree",DEBUG, "S[%d] O %s", this->GetFd(), line.c_str());
- this->WriteData(line);
- this->WriteData(wide_newline);
+ WriteLineNoCompat(original_line);
+}
+
+namespace
+{
+ bool InsertCurrentChannelTS(CommandBase::Params& 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, CommandBase::Params& 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;
+
+ CommandBase::Params 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 3.0.
+ 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 or any of its parents are bursting, then new servers it
+ // introduces are not bursting.
+ bool bursting = false;
+ for (TreeServer* server = TreeServer::Get(who); server; server = server->GetParent())
+ {
+ if (server->IsBursting())
+ {
+ bursting = true;
+ break;
+ }
+ }
+
+ if (!bursting)
+ 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;
+ }
+ else if (cmd == "SVSWATCH")
+ {
+ // SVSWATCH was removed because nothing was using it, but better be sure
+ return false;
+ }
+ else if (cmd == "PUSH")
+ {
+ if ((params.size() != 2) || (!this->MyRoot))
+ return false; // Huh?
+
+ irc::tokenstream ts(params.back());
+
+ std::string srcstr;
+ ts.GetMiddle(srcstr);
+ srcstr.erase(0, 1);
+
+ std::string token;
+ ts.GetMiddle(token);
+
+ // See if it's a numeric being sent to the target via PUSH
+ unsigned int numeric_number = 0;
+ if (token.length() == 3)
+ numeric_number = ConvToNum<unsigned int>(token);
+
+ if ((numeric_number > 0) && (numeric_number < 1000))
+ {
+ // It's a numeric, translate to NUM
+
+ // srcstr must be a valid server name
+ TreeServer* const numericsource = Utils->FindServer(srcstr);
+ if (!numericsource)
+ {
+ ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Unable to translate PUSH numeric %s to user %s from 1202 protocol server %s: source \"%s\" doesn't exist", token.c_str(), params[0].c_str(), this->MyRoot->GetName().c_str(), srcstr.c_str());
+ return false;
+ }
+
+ cmd = "NUM";
+
+ // Second parameter becomes the target uuid
+ params[0].swap(params[1]);
+ // Replace first param (now the PUSH payload, not needed) with the source sid
+ params[0] = numericsource->GetID();
+
+ params.push_back(InspIRCd::Format("%03u", numeric_number));
+
+ // Ignore the nickname in the numeric in PUSH
+ ts.GetMiddle(token);
+
+ // Rest of the tokens are the numeric parameters, add them to NUM
+ while (ts.GetTrailing(token))
+ params.push_back(token);
+ }
+ else if ((token == "PRIVMSG") || (token == "NOTICE"))
+ {
+ // Command is a PRIVMSG/NOTICE
+ cmd.swap(token);
+
+ // Check if the PRIVMSG/NOTICE target is a nickname
+ ts.GetMiddle(token);
+ if (token.c_str()[0] == '#')
+ {
+ ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Unable to translate PUSH %s to user %s from 1202 protocol server %s, target \"%s\"", cmd.c_str(), params[0].c_str(), this->MyRoot->GetName().c_str(), token.c_str());
+ return false;
+ }
+
+ // Replace second parameter with the message
+ ts.GetTrailing(params[1]);
+ }
+ else
+ {
+ ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, "Unable to translate PUSH to user %s from 1202 protocol server %s", params[0].c_str(), this->MyRoot->GetName().c_str());
+ return false;
+ }
+
+ return true;
+ }
+
+ return true; // Passthru
}
projects / user / henk / code / inspircd.git / blobdiff