aboutsummaryrefslogtreecommitdiff
path: root/src/modules/m_spanningtree/compat.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/modules/m_spanningtree/compat.cpp')
-rw-r--r--src/modules/m_spanningtree/compat.cpp609
1 files changed, 0 insertions, 609 deletions
diff --git a/src/modules/m_spanningtree/compat.cpp b/src/modules/m_spanningtree/compat.cpp
deleted file mode 100644
index d6349fb6e..000000000
--- a/src/modules/m_spanningtree/compat.cpp
+++ /dev/null
@@ -1,609 +0,0 @@
-/*
- * InspIRCd -- Internet Relay Chat Daemon
- *
- * Copyright (C) 2018 Matt Schatz <genius3000@g3k.solutions>
- * Copyright (C) 2013-2016 Attila Molnar <attilamolnar@hush.com>
- * Copyright (C) 2013, 2018-2019 Sadie Powell <sadie@witchery.services>
- * Copyright (C) 2012 Robby <robby@chatbelgie.be>
- * Copyright (C) 2010 Craig Edwards <brain@inspircd.org>
- * 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::WriteLineNoCompat(const std::string& line)
-{
- ServerInstance->Logs.Log(MODNAME, LOG_RAWIO, "S[%d] O %s", this->GetFd(), line.c_str());
- this->WriteData(line);
- this->WriteData(newline);
-}
-
-void TreeSocket::WriteLine(const std::string& original_line)
-{
- if (LinkState == CONNECTED)
- {
- if (proto_version != PROTO_NEWEST)
- {
- 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 + 1);
- a = line.find(' ');
- }
- std::string::size_type b = line.find(' ', a + 1);
- std::string command(line, a + 1, b-a-1);
- // now try to find a translation entry
- if (proto_version < PROTO_INSPIRCD_30)
- {
- if (command == "IJOIN")
- {
- // Convert
- // :<uid> IJOIN <chan> <membid> [<ts> [<flags>]]
- // to
- // :<sid> FJOIN <chan> <ts> + [<flags>],<uuid>
- std::string::size_type c = line.find(' ', b + 1);
- 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 (command == "RESYNC")
- return;
- 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;
-
- 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 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(" :");
-
- TreeServer* const source = Utils->FindServerID(line.substr(spcolon-3, 3));
- if (!source)
- return;
-
- line = CmdBuilder(source, "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->Users.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;
- }
- }
-
- 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->Users.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 == "SVSSILENCE")
- {
- // SVSSILENCE 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
-}