/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2019 linuxdaemon <linuxdaemon.irc@gmail.com>
* Copyright (C) 2013-2016, 2018 Attila Molnar <attilamolnar@hush.com>
* Copyright (C) 2013, 2017-2020 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@inspircd.org>
* Copyright (C) 2007-2008 Dennis Friis <peavey@inspircd.org>
* Copyright (C) 2007, 2009-2010 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"
/** An enumeration of all known protocol versions.
*
* If you introduce new protocol versions please document them here:
* https://docs.inspircd.org/spanningtree/changes
*/
enum ProtocolVersion : uint16_t
{
/** The linking protocol version introduced in InspIRCd v3.0. */
PROTO_INSPIRCD_30 = 1205,
/** The linking protocol version introduced in InspIRCd v4.0a1. */
PROTO_INSPIRCD_40_A1 = 1206,
/** The oldest version of the protocol that we support. */
PROTO_OLDEST = PROTO_INSPIRCD_30,
/** The newest version of the protocol that we support. */
PROTO_NEWEST = PROTO_INSPIRCD_40_A1
};
/** Forward declarations
*/
class SpanningTreeUtilities;
class CacheRefreshTimer;
class TreeServer;
class Link;
class Autoconnect;
/** This is the main class for the spanningtree module
*/
class ModuleSpanningTree
: 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 = 0;
public:
/** The specialized ProtocolInterface that is assigned to ServerInstance->PI on load
*/
SpanningTreeProtocolInterface protocolinterface;
/** Event provider for our broadcast events. */
Events::ModuleEventProvider broadcasteventprov;
/** 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;
/** Tag for marking services pseudoclients. */
ServiceTag servicetag;
/** The DNS manager service provided by core_dns. */
dynamic_reference<DNS::Manager> 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
*/
ModResult HandleSquit(const CommandBase::Params& parameters, User* user);
/** Handle remote WHOIS
*/
ModResult HandleRemoteWhois(const CommandBase::Params& parameters, User* user);
/** Connect a server locally
*/
void ConnectServer(std::shared_ptr<Link> x, std::shared_ptr<Autoconnect> y = NULL);
/** Connect the next autoconnect server
*/
void ConnectServer(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
*/
void DoConnectTimeout(time_t curtime);
/** Handle remote VERSION
*/
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, unsigned int 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 OnChangeRealName(User* user, const std::string& real) override;
void OnChangeIdent(User* user, const std::string &ident) 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 ¶meter) override;
void ReadConfig(ConfigStatus& status) override;
void OnOper(User* user, const std::string &opertype) 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) override;
void OnUserBack(User* user) override;
void OnLoadModule(Module* mod) override;
void OnUnloadModule(Module* mod) override;
ModResult OnAcceptConnection(int newsock, ListenSocket* from, irc::sockets::sockaddrs* client, 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;
Cullable::Result Cull() override;
~ModuleSpanningTree() override;
void Prioritize() override;
};
