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authorGravatar Sadie Powell2024-07-17 00:06:50 +0100
committerGravatar Sadie Powell2024-07-17 00:06:50 +0100
commit889d521e05f2e922683d48c74eb00290e7a2f548 (patch)
treeb4c56bd4cdf0881601c7e4d6ff571e491af10bf4 /src/modules/m_spanningtree/nickcollide.cpp
parentUse std::endian from C++20 in the sha1 module. (diff)
Shuffle the modules about a bit.
Diffstat (limited to 'src/modules/m_spanningtree/nickcollide.cpp')
-rw-r--r--src/modules/m_spanningtree/nickcollide.cpp131
1 files changed, 0 insertions, 131 deletions
diff --git a/src/modules/m_spanningtree/nickcollide.cpp b/src/modules/m_spanningtree/nickcollide.cpp
deleted file mode 100644
index 69e804f5b..000000000
--- a/src/modules/m_spanningtree/nickcollide.cpp
+++ /dev/null
@@ -1,131 +0,0 @@
-/*
- * InspIRCd -- Internet Relay Chat Daemon
- *
- * Copyright (C) 2019, 2021-2023 Sadie Powell <sadie@witchery.services>
- * Copyright (C) 2013-2015 Attila Molnar <attilamolnar@hush.com>
- * Copyright (C) 2012 Robby <robby@chatbelgie.be>
- * Copyright (C) 2009 Uli Schlachter <psychon@znc.in>
- * Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
- * Copyright (C) 2008, 2010 Craig Edwards <brain@inspircd.org>
- * Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
- *
- * 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 "treesocket.h"
-#include "treeserver.h"
-#include "utils.h"
-#include "commandbuilder.h"
-#include "commands.h"
-
-/*
- * Yes, this function looks a little ugly.
- * However, in some circumstances we may not have a User, so we need to do things this way.
- * Returns true if remote or both lost, false otherwise.
- * Sends SAVEs as appropriate and forces nick change of the user 'u' if our side loses or if both lose.
- * Does not change the nick of the user that is trying to claim the nick of 'u', i.e. the "remote" user.
- */
-bool SpanningTreeUtilities::DoCollision(User* u, TreeServer* server, time_t remotets, const std::string& remoteuser, const std::string& remoteip, const std::string& remoteuid, const char* collidecmd)
-{
- // At this point we're sure that a collision happened, increment the counter regardless of who wins
- ServerInstance->Stats.Collisions++;
-
- /*
- * Under old protocol rules, we would have had to kill both clients.
- * Really, this sucks.
- * These days, we have UID. And, so what we do is, force nick change client(s)
- * involved according to timestamp rules.
- *
- * RULES:
- * user@ip equal:
- * Force nick change on OLDER timestamped client
- * user@ip differ:
- * Force nick change on NEWER timestamped client
- * TS EQUAL:
- * FNC both.
- *
- * This stops abusive use of collisions, simplifies problems with loops, and so on.
- * -- w00t
- */
- bool bChangeLocal = true;
- bool bChangeRemote = true;
-
- // If the timestamps are not equal only one of the users has to change nick,
- // otherwise both have to change
- const time_t localts = u->nickchanged;
- if (remotets != localts)
- {
- /* first, let's see if user@host matches. */
- const std::string& localuser = u->GetRealUser();
- const std::string& localip = u->GetAddress();
- bool SamePerson = (localuser == remoteuser)
- && (localip == remoteip);
-
- /*
- * if user@ip is equal, and theirs is newer, or
- * user@ip differ, and ours is newer
- */
- if ((SamePerson && remotets < localts) || (!SamePerson && remotets > localts))
- {
- // Only remote needs to change
- bChangeLocal = false;
- }
- else
- {
- // Only ours needs to change
- bChangeRemote = false;
- }
- }
-
- ServerInstance->Logs.Debug(MODNAME, "Nick collision on \"{}\" caused by {}: {}/{}/{}@{} {} <-> {}/{}/{}@{} {}", u->nick, collidecmd,
- u->uuid, localts, u->GetRealUser(), u->GetAddress(), bChangeLocal,
- remoteuid, remotets, remoteuser, remoteip, bChangeRemote);
-
- /*
- * Send SAVE and accept the losing client with its UID (as we know the SAVE will
- * not fail under any circumstances -- UIDs are netwide exclusive).
- *
- * This means that each side of a collide will generate one extra NICK back to where
- * they have just linked (and where it got the SAVE from), however, it will
- * be dropped harmlessly as it will come in as :928AAAB NICK 928AAAB, and we already
- * have 928AAAB's nick set to that.
- * -- w00t
- */
-
- if (bChangeLocal)
- {
- /*
- * Local-side nick needs to change. Just in case we are hub, and
- * this "local" nick is actually behind us, send a SAVE out.
- */
- CmdBuilder params("SAVE");
- params.push(u->uuid);
- params.push(ConvToStr(u->nickchanged));
- params.Broadcast();
-
- u->ChangeNick(u->uuid, CommandSave::SavedTimestamp);
- }
- if (bChangeRemote)
- {
- /*
- * Remote side needs to change. If this happens, we modify the UID or NICK and
- * send back a SAVE to the source.
- */
- CmdBuilder("SAVE").push(remoteuid).push_int(remotets).Unicast(server->ServerUser);
- }
-
- return bChangeRemote;
-}