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/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2019 linuxdaemon <linuxdaemon.irc@gmail.com>
* Copyright (C) 2013-2015 Attila Molnar <attilamolnar@hush.com>
* Copyright (C) 2013, 2018-2024 Sadie Powell <sadie@witchery.services>
* Copyright (C) 2013 Adam <Adam@anope.org>
* Copyright (C) 2012 Robby <robby@chatbelgie.be>
* Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
* Copyright (C) 2009 Uli Schlachter <psychon@znc.in>
* Copyright (C) 2007-2008 Dennis Friis <peavey@inspircd.org>
* Copyright (C) 2007, 2009 Craig Edwards <brain@inspircd.org>
* Copyright (C) 2007 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/>.
*/
#pragma once
#include "inspircd.h"
#include "event.h"
#include "modules/dns.h"
#include "modules/ssl.h"
#include "modules/stats.h"
#include "modules/ctctags.h"
#include "modules/server.h"
#include "servercommand.h"
#include "commands.h"
#include "protocolinterface.h"
#include "tags.h"
/** Forward declarations
*/
class SpanningTreeUtilities;
class CacheRefreshTimer;
class TreeServer;
class Link;
class Autoconnect;
/** This is the main class for the spanningtree module
*/
class ModuleSpanningTree final
: public Module
, public Away::EventListener
, public Stats::EventListener
, public CTCTags::EventListener
{
/** Client to server commands, registered in the core
*/
CommandRConnect rconnect;
CommandRSQuit rsquit;
CommandMap map;
/** Server to server only commands, not registered in the core
*/
SpanningTreeCommands commands;
/** Next membership id assigned when a local user joins a channel
*/
Membership::Id currmembid = 1;
public:
/** The specialized ProtocolInterface that is assigned to ServerInstance->PI on load
*/
SpanningTreeProtocolInterface protocolinterface;
/** Event provider for our routing event. */
Events::ModuleEventProvider routeeventprov;
/** Event provider for our link events. */
Events::ModuleEventProvider linkeventprov;
/** Event provider for our message events. */
Events::ModuleEventProvider messageeventprov;
/** Event provider for our sync events. */
Events::ModuleEventProvider synceventprov;
/** API for accessing user client certificates. */
UserCertificateAPI sslapi;
/** Tags for server to server messages. */
ServerTags servertags;
/** The DNS manager service provided by core_dns. */
DNS::ManagerRef DNS;
/** Event provider for message tags. */
ClientProtocol::MessageTagEvent tagevprov;
/** Manager for server commands. */
ServerCommandManager CmdManager;
/** Set to true if inside a spanningtree call, to prevent sending
* xlines and other things back to their source
*/
bool loopCall = false;
/** Constructor
*/
ModuleSpanningTree();
void init() override;
/** Shows /LINKS
*/
void ShowLinks(TreeServer* Current, User* user, int hops);
/** Handle LINKS command
*/
void HandleLinks(const CommandBase::Params& parameters, User* user);
/** Handle SQUIT
*/
static ModResult HandleSquit(const CommandBase::Params& parameters, User* user);
/** Handle remote WHOIS
*/
static ModResult HandleRemoteWhois(const CommandBase::Params& parameters, User* user);
/** Connect a server locally
*/
void ConnectServer(const std::shared_ptr<Link>& x, const std::shared_ptr<Autoconnect>& y = nullptr);
/** Connect the next autoconnect server
*/
void ConnectServer(const std::shared_ptr<Autoconnect>& y, bool on_timer);
/** Check if any servers are due to be autoconnected
*/
void AutoConnectServers(time_t curtime);
/** Check if any connecting servers should timeout
*/
static void DoConnectTimeout(time_t curtime);
/** Handle remote VERSION
*/
static ModResult HandleVersion(const CommandBase::Params& parameters, User* user);
/** Handle CONNECT
*/
ModResult HandleConnect(const CommandBase::Params& parameters, User* user);
ModResult OnPreCommand(std::string& command, CommandBase::Params& parameters, LocalUser* user, bool validated) override;
void OnPostCommand(Command*, const CommandBase::Params& parameters, LocalUser* user, CmdResult result, bool loop) override;
void OnUserConnect(LocalUser* source) override;
void OnUserInvite(User* source, User* dest, Channel* channel, time_t timeout, ModeHandler::Rank notifyrank, CUList& notifyexcepts) override;
ModResult OnPreTopicChange(User* user, Channel* chan, const std::string& topic) override;
void OnPostTopicChange(User* user, Channel* chan, const std::string& topic) override;
void OnUserPostMessage(User* user, const MessageTarget& target, const MessageDetails& details) override;
void OnUserPostTagMessage(User* user, const MessageTarget& target, const CTCTags::TagMessageDetails& details) override;
void OnBackgroundTimer(time_t curtime) override;
void OnUserJoin(Membership* memb, bool sync, bool created, CUList& excepts) override;
void OnChangeHost(User* user, const std::string& newhost) override;
void OnChangeRealHost(User* user, const std::string& newhost) override;
void OnChangeRealName(User* user, const std::string& real) override;
void OnChangeUser(User* user, const std::string& newuser) override;
void OnChangeRealUser(User* user, const std::string& newuser) override;
void OnUserPart(Membership* memb, std::string& partmessage, CUList& excepts) override;
void OnUserQuit(User* user, const std::string& reason, const std::string& oper_message) override;
void OnUserPostNick(User* user, const std::string& oldnick) override;
void OnUserKick(User* source, Membership* memb, const std::string& reason, CUList& excepts) override;
void OnPreRehash(User* user, const std::string& parameter) override;
void ReadConfig(ConfigStatus& status) override;
void OnOperLogin(User* user, const std::shared_ptr<OperAccount>& oper, bool automatic) override;
void OnAddLine(User* u, XLine* x) override;
void OnDelLine(User* u, XLine* x) override;
ModResult OnStats(Stats::Context& stats) override;
void OnUserAway(User* user, const std::optional<AwayState>& prevstate) override;
void OnUserBack(User* user, const std::optional<AwayState>& prevstate) override;
void OnLoadModule(Module* mod) override;
void OnUnloadModule(Module* mod) override;
ModResult OnAcceptConnection(int newsock, ListenSocket* from, const irc::sockets::sockaddrs& client, const irc::sockets::sockaddrs& server) override;
void OnMode(User* source, User* u, Channel* c, const Modes::ChangeList& modes, ModeParser::ModeProcessFlag processflags) override;
void OnShutdown(const std::string& reason) override;
void OnDecodeMetadata(Extensible* target, const std::string& extname, const std::string& extdata) override;
Cullable::Result Cull() override;
~ModuleSpanningTree() override;
void Prioritize() override;
};
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