/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2020 Matt Schatz <genius3000@g3k.solutions>
* Copyright (C) 2019 linuxdaemon <linuxdaemon.irc@gmail.com>
* Copyright (C) 2013, 2017-2024 Sadie Powell <sadie@witchery.services>
* Copyright (C) 2013, 2016 Adam <Adam@anope.org>
* Copyright (C) 2012-2016, 2018 Attila Molnar <attilamolnar@hush.com>
* Copyright (C) 2012 Robby <robby@chatbelgie.be>
* Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
* Copyright (C) 2007-2009 Robin Burchell <robin+git@viroteck.net>
* Copyright (C) 2007-2008 Dennis Friis <peavey@inspircd.org>
* Copyright (C) 2005, 2007-2009 Craig Edwards <brain@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 "clientprotocolmsg.h"
#include "iohook.h"
#include "socket.h"
#include "xline.h"
#include "commands.h"
#include "link.h"
#include "main.h"
#include "resolvers.h"
#include "translate.h"
#include "treeserver.h"
#include "treesocket.h"
#include "utils.h"
ModuleSpanningTree::ModuleSpanningTree()
: Module(VF_VENDOR, "Allows linking multiple servers together as part of one network.")
, Away::EventListener(this)
, Stats::EventListener(this)
, CTCTags::EventListener(this)
, rconnect(this)
, rsquit(this)
, map(this)
, commands(this)
, routeeventprov(this, "event/server-route")
, linkeventprov(this, "event/server-link")
, messageeventprov(this, "event/server-message")
, synceventprov(this, "event/server-sync")
, sslapi(this)
, servertags(this)
, DNS(this)
, tagevprov(this)
{
}
SpanningTreeCommands::SpanningTreeCommands(ModuleSpanningTree* module)
: metadata(module)
, uid(module)
, opertype(module)
, fjoin(module)
, ijoin(module)
, resync(module)
, fmode(module)
, ftopic(module)
, fhost(module)
, frhost(module)
, fident(module)
, fname(module)
, away(module)
, addline(module)
, delline(module)
, encap(module)
, idle(module)
, nick(module)
, ping(module)
, pong(module)
, save(module)
, server(module)
, squit(module)
, snonotice(module)
, endburst(module)
, sinfo(module)
, num(module)
, lmode(module)
{
}
namespace
{
void SetLocalUsersServer(Server* newserver)
{
// Does not change the server of quitting users because those are not in the list
ServerInstance->FakeClient->server = newserver;
for (auto* user : ServerInstance->Users.GetLocalUsers())
user->server = newserver;
}
void ResetMembershipIds()
{
// Set all membership ids to 0
for (const auto* user : ServerInstance->Users.GetLocalUsers())
{
for (auto* memb : user->chans)
memb->id = 0;
}
}
}
void ModuleSpanningTree::init()
{
ServerInstance->SNO.EnableSnomask('l', "LINK");
ResetMembershipIds();
Utils = new SpanningTreeUtilities(this);
Utils->TreeRoot = new TreeServer;
ServerInstance->PI = &protocolinterface;
delete ServerInstance->FakeClient->server;
SetLocalUsersServer(Utils->TreeRoot);
}
void ModuleSpanningTree::ShowLinks(TreeServer* Current, User* user, int hops)
{
std::string Parent = Utils->TreeRoot->GetName();
if (Current->GetParent())
{
Parent = Current->GetParent()->GetName();
}
for (auto* server : Current->GetChildren())
{
if ((server->Hidden) || ((Utils->HideServices) && (server->IsService())))
{
if (user->IsOper())
{
ShowLinks(server, user, hops+1);
}
}
else
{
ShowLinks(server, user, hops+1);
}
}
/* Don't display the line if its a service, hide services is on, and the user isn't an oper */
if ((Utils->HideServices) && (Current->IsService()) && (!user->IsOper()))
return;
/* Or if the server is hidden and they're not an oper */
else if ((Current->Hidden) && (!user->IsOper()))
return;
user->WriteNumeric(RPL_LINKS, Current->GetName(),
(((Utils->FlatLinks) && (!user->IsOper())) ? ServerInstance->Config->GetServerName() : Parent),
INSP_FORMAT("{} {}", (((Utils->FlatLinks) && (!user->IsOper())) ? 0 : hops), Current->GetDesc()));
}
void ModuleSpanningTree::HandleLinks(const CommandBase::Params& parameters, User* user)
{
ShowLinks(Utils->TreeRoot, user, 0);
user->WriteNumeric(RPL_ENDOFLINKS, '*', "End of /LINKS list.");
}
void ModuleSpanningTree::ConnectServer(const std::shared_ptr<Autoconnect>& a, bool on_timer)
{
if (!a)
return;
for(unsigned int j=0; j < a->servers.size(); j++)
{
if (Utils->FindServer(a->servers[j]))
{
// found something in this block. Should the server fail,
// we want to start at the start of the list, not in the
// middle where we left off
a->position = -1;
return;
}
}
if (on_timer && a->position >= 0)
return;
if (!on_timer && a->position < 0)
return;
a->position++;
while (a->position < (int)a->servers.size())
{
std::shared_ptr<Link> x = Utils->FindLink(a->servers[a->position]);
if (x)
{
ServerInstance->SNO.WriteToSnoMask('l', "AUTOCONNECT: Auto-connecting server \002{}\002", x->Name);
ConnectServer(x, a);
return;
}
a->position++;
}
// Autoconnect chain has been fully iterated; start at the beginning on the
// next AutoConnectServers run
a->position = -1;
}
void ModuleSpanningTree::ConnectServer(const std::shared_ptr<Link>& x, const std::shared_ptr<Autoconnect>& y)
{
if (InspIRCd::Match(ServerInstance->Config->ServerName, x->Name, ascii_case_insensitive_map))
{
ServerInstance->SNO.WriteToSnoMask('l', "CONNECT: Not connecting to myself.");
return;
}
irc::sockets::sockaddrs sa;
if (x->IPAddr.find('/') != std::string::npos)
{
if (!irc::sockets::isunix(x->IPAddr) || !sa.from_unix(x->IPAddr))
{
// We don't use the family() != AF_UNSPEC check below for UNIX sockets as
// that results in a DNS lookup.
ServerInstance->SNO.WriteToSnoMask('l', "CONNECT: Error connecting \002{}\002: {} is not a UNIX socket!",
x->Name, x->IPAddr);
return;
}
}
else
{
// If this fails then the IP sa will be AF_UNSPEC.
sa.from_ip_port(x->IPAddr, x->Port);
}
/* Do we already have an IP? If so, no need to resolve it. */
if (sa.family() != AF_UNSPEC)
{
// Create a TreeServer object that will start connecting immediately in the background
auto* newsocket = new TreeSocket(x, y, sa);
if (!newsocket->HasFd())
{
ServerInstance->SNO.WriteToSnoMask('l', "CONNECT: Error connecting \002{}\002: {}.",
x->Name, newsocket->GetError());
ServerInstance->GlobalCulls.AddItem(newsocket);
}
}
else if (!DNS)
{
ServerInstance->SNO.WriteToSnoMask('l', "CONNECT: Error connecting \002{}\002: Hostname given and core_dns is not loaded, unable to resolve.", x->Name);
}
else
{
// Guess start_type from bindip aftype
DNS::QueryType start_type = DNS::QUERY_AAAA;
irc::sockets::sockaddrs bind;
if (!x->Bind.empty() && bind.from_ip(x->Bind))
{
if (bind.family() == AF_INET)
start_type = DNS::QUERY_A;
}
auto* snr = new ServerNameResolver(*DNS, x->IPAddr, x, start_type, y);
try
{
DNS->Process(snr);
}
catch (const DNS::Exception& e)
{
delete snr;
ServerInstance->SNO.WriteToSnoMask('l', "CONNECT: Error connecting \002{}\002: {}.", x->Name, e.GetReason());
ConnectServer(y, false);
}
}
}
void ModuleSpanningTree::AutoConnectServers(time_t curtime)
{
for (const auto& x : Utils->AutoconnectBlocks)
{
if (curtime >= x->NextConnectTime)
{
x->NextConnectTime = curtime + x->Period;
ConnectServer(x, true);
}
}
}
void ModuleSpanningTree::DoConnectTimeout(time_t curtime)
{
SpanningTreeUtilities::TimeoutList::iterator i = Utils->timeoutlist.begin();
while (i != Utils->timeoutlist.end())
{
TreeSocket* s = i->first;
std::pair<std::string, unsigned int> p = i->second;
SpanningTreeUtilities::TimeoutList::iterator me = i;
i++;
if (s->GetLinkState() == DYING)
{
Utils->timeoutlist.erase(me);
s->Close();
}
else if (curtime > s->age + (time_t)p.second)
{
ServerInstance->SNO.WriteToSnoMask('l', "CONNECT: Error connecting \002{}\002 (timeout of {} seconds)", p.first, p.second);
Utils->timeoutlist.erase(me);
s->Close();
}
}
}
ModResult ModuleSpanningTree::HandleVersion(const CommandBase::Params& parameters, User* user)
{
// We've already confirmed that !parameters.empty(), so this is safe
TreeServer* found = Utils->FindServerMask(parameters[0]);
if (found)
{
if (found == Utils->TreeRoot)
{
// Pass to default VERSION handler.
return MOD_RES_PASSTHRU;
}
Numeric::Numeric numeric(RPL_VERSION);
if (user->IsOper())
{
numeric.push(found->rawversion + ".");
numeric.push(found->GetName());
numeric.push("[" + found->GetId() + "] " + found->customversion);
}
else
{
numeric.push(found->rawbranch + ".");
numeric.push(found->GetPublicName());
numeric.push(found->customversion);
}
user->WriteNumeric(numeric);
}
else
{
user->WriteNumeric(ERR_NOSUCHSERVER, parameters[0], "No such server");
}
return MOD_RES_DENY;
}
ModResult ModuleSpanningTree::HandleConnect(const CommandBase::Params& parameters, User* user)
{
for (const auto& x : Utils->LinkBlocks)
{
if (InspIRCd::Match(x->Name, parameters[0], ascii_case_insensitive_map))
{
if (InspIRCd::Match(ServerInstance->Config->ServerName, x->Name, ascii_case_insensitive_map))
{
user->WriteRemoteNotice("*** CONNECT: Server \002{}\002 is ME, not connecting.", x->Name);
return MOD_RES_DENY;
}
TreeServer* CheckDupe = Utils->FindServer(x->Name);
if (!CheckDupe)
{
user->WriteRemoteNotice("*** CONNECT: Connecting to server: \002{}\002 ({}:{})", x->Name, (x->HiddenFromStats ? "<hidden>" : x->IPAddr), x->Port);
ConnectServer(x);
return MOD_RES_DENY;
}
else
{
user->WriteRemoteNotice("*** CONNECT: Server \002{}\002 already exists on the network and is connected via \002{}\002", x->Name, CheckDupe->GetParent()->GetName());
return MOD_RES_DENY;
}
}
}
user->WriteRemoteNotice("*** CONNECT: No server matching \002{}\002 could be found in the config file.", parameters[0]);
return MOD_RES_DENY;
}
void ModuleSpanningTree::OnUserInvite(User* source, User* dest, Channel* channel, time_t expiry, ModeHandler::Rank notifyrank, CUList& notifyexcepts)
{
if (IS_LOCAL(source))
{
CmdBuilder params(source, "INVITE");
params.push(dest->uuid);
params.push(channel->name);
params.push_int(channel->age);
params.push(ConvToStr(expiry));
params.Broadcast();
}
}
ModResult ModuleSpanningTree::OnPreTopicChange(User* user, Channel* chan, const std::string& topic)
{
// XXX: Deny topic changes if the current topic set time is the current time or is in the future because
// other servers will drop our FTOPIC. This restriction will be removed when the protocol is updated.
if ((chan->topicset >= ServerInstance->Time()) && (Utils->serverlist.size() > 1))
{
user->WriteNumeric(ERR_UNAVAILRESOURCE, chan->name, "Retry topic change later");
return MOD_RES_DENY;
}
return MOD_RES_PASSTHRU;
}
void ModuleSpanningTree::OnPostTopicChange(User* user, Channel* chan, const std::string& topic)
{
// Drop remote events on the floor.
if (!IS_LOCAL(user))
return;
CommandFTopic::Builder(user, chan).Broadcast();
}
void ModuleSpanningTree::OnUserPostMessage(User* user, const MessageTarget& target, const MessageDetails& details)
{
if (!IS_LOCAL(user))
return;
const char* message_type = (details.type == MessageType::PRIVMSG ? "PRIVMSG" : "NOTICE");
switch (target.type)
{
case MessageTarget::TYPE_USER:
{
auto* d = target.Get<User>();
if (!IS_LOCAL(d))
{
CmdBuilder params(user, message_type);
params.push_tags(details.tags_out);
params.push(d->uuid);
params.push_last(details.text);
params.Unicast(d);
}
break;
}
case MessageTarget::TYPE_CHANNEL:
{
Utils->SendChannelMessage(user, target.Get<Channel>(), details.text, target.status, details.tags_out, details.exemptions, message_type);
break;
}
case MessageTarget::TYPE_SERVER:
{
const auto* serverglob = target.Get<std::string>();
CmdBuilder par(user, message_type);
par.push_tags(details.tags_out);
par.push(std::string("$") + *serverglob);
par.push_last(details.text);
par.Broadcast();
break;
}
}
}
void ModuleSpanningTree::OnUserPostTagMessage(User* user, const MessageTarget& target, const CTCTags::TagMessageDetails& details)
{
if (!IS_LOCAL(user))
return;
switch (target.type)
{
case MessageTarget::TYPE_USER:
{
auto* d = target.Get<User>();
if (!IS_LOCAL(d))
{
CmdBuilder params(user, "TAGMSG");
params.push_tags(details.tags_out);
params.push(d->uuid);
params.Unicast(d);
}
break;
}
case MessageTarget::TYPE_CHANNEL:
{
Utils->SendChannelMessage(user, target.Get<Channel>(), "", target.status, details.tags_out, details.exemptions, "TAGMSG");
break;
}
case MessageTarget::TYPE_SERVER:
{
const auto* serverglob = target.Get<std::string>();
CmdBuilder par(user, "TAGMSG");
par.push_tags(details.tags_out);
par.push(std::string("$") + *serverglob);
par.Broadcast();
break;
}
}
}
void ModuleSpanningTree::OnBackgroundTimer(time_t curtime)
{
AutoConnectServers(curtime);
DoConnectTimeout(curtime);
}
void ModuleSpanningTree::OnUserConnect(LocalUser* user)
{
if (user->quitting)
return;
// Create the lazy ssl_cert metadata for this user if not already created.
if (sslapi)
sslapi->GetCertificate(user);
CommandUID::Builder(user).Broadcast();
if (user->IsOper())
CommandOpertype::Builder(user, user->oper).Broadcast();
if (user->IsAway())
CommandAway::Builder(user).Broadcast();
if (user->uniqueusername) // TODO: convert this to BooleanExtItem.
CommandMetadata::Builder(user, "uniqueusername", "1").Broadcast();
for (const auto& [item, obj] : user->GetExtList())
{
const std::string value = item->ToNetwork(user, obj);
if (!value.empty())
{
ServerInstance->PI->SendMetadata(user, item->name, value);
item->OnSync(user, obj, nullptr);
}
}
Utils->TreeRoot->UserCount++;
}
void ModuleSpanningTree::OnUserJoin(Membership* memb, bool sync, bool created_by_local, CUList& excepts)
{
// Only do this for local users
if (!IS_LOCAL(memb->user))
return;
// Assign the current membership id to the new Membership and increase it
memb->id = currmembid++;
if (created_by_local)
{
CommandFJoin::Builder params(memb->chan);
params.add(memb);
params.finalize();
params.Broadcast();
SpanningTreeUtilities::SendListLimits(memb->chan, nullptr);
}
else
{
CmdBuilder params(memb->user, "IJOIN");
params.push(memb->chan->name);
params.push_int(memb->id);
if (!memb->modes.empty())
{
params.push(ConvToStr(memb->chan->age));
params.push(memb->GetAllPrefixModes());
}
params.Broadcast();
}
}
void ModuleSpanningTree::OnChangeHost(User* user, const std::string& newhost)
{
if (!user->IsFullyConnected() || !IS_LOCAL(user))
return;
CmdBuilder(user, "FHOST").push(newhost).push('*').Broadcast();
}
void ModuleSpanningTree::OnChangeRealHost(User* user, const std::string& newhost)
{
if (!user->IsFullyConnected() || !IS_LOCAL(user))
return;
CmdBuilder(user, "FHOST").push('*').push(newhost).Broadcast();
}
void ModuleSpanningTree::OnChangeRealName(User* user, const std::string& real)
{
if (!user->IsFullyConnected() || !IS_LOCAL(user))
return;
CmdBuilder(user, "FNAME").push_last(real).Broadcast();
}
void ModuleSpanningTree::OnChangeUser(User* user, const std::string& newuser)
{
if (!user->IsFullyConnected() || !IS_LOCAL(user))
return;
CmdBuilder(user, "FIDENT").push(newuser).push("*").Broadcast();
}
void ModuleSpanningTree::OnChangeRealUser(User* user, const std::string& newuser)
{
if (!user->IsFullyConnected() || !IS_LOCAL(user))
return;
CmdBuilder(user, "FIDENT").push("*").push(newuser).Broadcast();
}
void ModuleSpanningTree::OnUserPart(Membership* memb, std::string& partmessage, CUList& excepts)
{
if (IS_LOCAL(memb->user))
{
CmdBuilder params(memb->user, "PART");
params.push(memb->chan->name);
if (!partmessage.empty())
params.push_last(partmessage);
params.Broadcast();
}
}
void ModuleSpanningTree::OnUserQuit(User* user, const std::string& reason, const std::string& oper_message)
{
if (IS_LOCAL(user))
{
if (oper_message != reason)
ServerInstance->PI->SendMetadata(user, "operquit", oper_message);
CmdBuilder(user, "QUIT").push_last(reason).Broadcast();
}
else
{
// Hide the message if one of the following is true:
// - User is being quit due to a netsplit and quietbursts is on
// - User is on a silent services server
TreeServer* server = TreeServer::Get(user);
bool hide = (((server->IsDead()) && (Utils->quiet_bursts)) || (server->IsSilentService()));
if (!hide)
{
ServerInstance->SNO.WriteToSnoMask('Q', "Client exiting on server {}: {} ({}) [{}]", user->server->GetName(),
user->GetRealMask(), user->GetAddress(), oper_message);
}
}
// Regardless, update the UserCount
TreeServer::Get(user)->UserCount--;
}
void ModuleSpanningTree::OnUserPostNick(User* user, const std::string& oldnick)
{
if (IS_LOCAL(user))
{
// The nick TS is updated by the core, we don't do it
CmdBuilder params(user, "NICK");
params.push(user->nick);
params.push(ConvToStr(user->nickchanged));
params.Broadcast();
}
else if (!loopCall)
{
ServerInstance->Logs.Normal(MODNAME, "WARNING: Changed nick of remote user {} from {} to {} TS {} by ourselves!", user->uuid, oldnick, user->nick, user->nickchanged);
}
}
void ModuleSpanningTree::OnUserKick(User* source, Membership* memb, const std::string& reason, CUList& excepts)
{
if ((!IS_LOCAL(source)) && (source != ServerInstance->FakeClient))
return;
CmdBuilder params(source, "KICK");
params.push(memb->chan->name);
params.push(memb->user->uuid);
// If a remote user is being kicked by us then send the membership id in the kick too
if (!IS_LOCAL(memb->user))
params.push_int(memb->id);
params.push_last(reason);
params.Broadcast();
}
void ModuleSpanningTree::OnPreRehash(User* user, const std::string& parameter)
{
ServerInstance->Logs.Debug(MODNAME, "OnPreRehash called with param {}", parameter);
// Send out to other servers
if (!parameter.empty() && parameter[0] != '-')
{
CmdBuilder params(user ? user : ServerInstance->FakeClient, "REHASH");
params.push(parameter);
params.Forward(user ? TreeServer::Get(user)->GetRoute() : nullptr);
}
}
void ModuleSpanningTree::ReadConfig(ConfigStatus& status)
{
// Did this rehash change the description of this server?
const std::string& newdesc = ServerInstance->Config->ServerDesc;
if (newdesc != Utils->TreeRoot->GetDesc())
{
// Broadcast a SINFO desc message to let the network know about the new description. This is the description
// string that is sent in the SERVER message initially and shown for example in WHOIS.
// We don't need to update the field itself in the Server object - the core does that.
CommandSInfo::Builder(Utils->TreeRoot, "desc", newdesc).Broadcast();
}
const auto& newcustomversion = ServerInstance->Config->CustomVersion;
if (newcustomversion != Utils->TreeRoot->customversion)
{
Utils->TreeRoot->customversion = newcustomversion;
CommandSInfo::Builder(Utils->TreeRoot, "customversion", newcustomversion).Broadcast();
}
// Re-read config stuff
try
{
Utils->ReadConfiguration();
}
catch (const ModuleException& e)
{
// Refresh the IP cache anyway, so servers read before the error will be allowed to connect
Utils->RefreshIPCache();
// Always warn local opers with snomask +l, also warn globally (snomask +L) if the rehash was issued by a remote user
std::string msg = "Error in configuration: ";
msg.append(e.GetReason());
ServerInstance->SNO.WriteToSnoMask('l', msg);
if (status.srcuser && !IS_LOCAL(status.srcuser))
ServerInstance->PI->SendSNONotice('L', msg);
}
}
namespace
{
void BroadcastModuleState(Module* mod, bool loading)
{
std::stringstream buffer;
buffer << (loading ? '+' : '-') << ModuleManager::ShrinkModName(mod->ModuleFile);
std::stringstream compatbuffer;
compatbuffer << (loading ? '+' : '-') << mod->ModuleFile;
if (loading)
{
const std::string linkstring = SpanningTreeUtilities::BuildLinkString(PROTO_INSPIRCD_4, mod);
if (!linkstring.empty())
buffer << '=' << linkstring;
const std::string compatlinkstring = SpanningTreeUtilities::BuildLinkString(PROTO_INSPIRCD_3, mod);
if (!compatlinkstring.empty())
compatbuffer << '=' << compatlinkstring;
}
for (const auto* child : Utils->TreeRoot->GetChildren())
{
if (!child->GetSocket())
continue; // Should never happen?
if (child->GetSocket()->proto_version <= PROTO_INSPIRCD_3)
CommandMetadata::Builder("modules", buffer.str()).Forward(child);
else
CommandMetadata::Builder("modules", compatbuffer.str()).Forward(child);
}
}
}
void ModuleSpanningTree::OnLoadModule(Module* mod)
{
BroadcastModuleState(mod, true);
}
void ModuleSpanningTree::OnUnloadModule(Module* mod)
{
if (!Utils)
return;
BroadcastModuleState(mod, false);
if (mod == this)
{
// We are being unloaded, inform modules about all servers splitting which cannot be done later when the servers are actually disconnected
for (const auto& [_, server] : Utils->serverlist)
{
if (!server->IsRoot())
linkeventprov.Call(&ServerProtocol::LinkEventListener::OnServerSplit, server, false);
}
return;
}
// Some other module is being unloaded. If it provides an IOHook we use, we must close that server connection now.
restart:
// Close all connections which use an IO hook provided by this module
for (const auto* child : Utils->TreeRoot->GetChildren())
{
TreeSocket* sock = child->GetSocket();
if (sock->GetModHook(mod))
{
sock->SendError("TLS module unloaded");
sock->Close();
// XXX: The list we're iterating is modified by TreeServer::SQuit() which is called by Close()
goto restart;
}
}
for (const auto& [sock, _] : Utils->timeoutlist)
{
if (sock->GetModHook(mod))
sock->Close();
}
}
void ModuleSpanningTree::OnOperLogin(User* user, const std::shared_ptr<OperAccount>& oper, bool automatic)
{
if (!user->IsFullyConnected() || !IS_LOCAL(user))
return;
// Note: The protocol does not allow direct umode +o;
// sending OPERTYPE infers +o modechange locally.
CommandOpertype::Builder(user, oper, automatic).Broadcast();
}
void ModuleSpanningTree::OnAddLine(User* user, XLine* x)
{
if (!x->IsBurstable() || loopCall || (user && !IS_LOCAL(user)))
return;
if (!user)
user = ServerInstance->FakeClient;
CommandAddLine::Builder(x, user).Broadcast();
}
void ModuleSpanningTree::OnDelLine(User* user, XLine* x)
{
if (!x->IsBurstable() || loopCall || (user && !IS_LOCAL(user)))
return;
if (!user)
user = ServerInstance->FakeClient;
CmdBuilder params(user, "DELLINE");
params.push(x->type);
params.push(x->Displayable());
params.Broadcast();
}
void ModuleSpanningTree::OnUserAway(User* user, const std::optional<AwayState>& prevstate)
{
if (IS_LOCAL(user) && user->IsFullyConnected())
CommandAway::Builder(user).Broadcast();
}
void ModuleSpanningTree::OnUserBack(User* user, const std::optional<AwayState>& prevstate)
{
OnUserAway(user, prevstate);
}
void ModuleSpanningTree::OnMode(User* source, User* u, Channel* c, const Modes::ChangeList& modes, ModeParser::ModeProcessFlag processflags)
{
if (processflags & ModeParser::MODE_LOCALONLY)
return;
if (u)
{
if (!u->IsFullyConnected())
return;
CmdBuilder params(source, "MODE");
params.push(u->uuid);
params.push(ClientProtocol::Messages::Mode::ToModeLetters(modes));
params.push_raw(Translate::ModeChangeListToParams(modes.getlist()));
params.Broadcast();
}
else
{
CmdBuilder params(source, "FMODE");
params.push(c->name);
params.push_int(c->age);
params.push(ClientProtocol::Messages::Mode::ToModeLetters(modes));
params.push_raw(Translate::ModeChangeListToParams(modes.getlist()));
params.Broadcast();
}
}
void ModuleSpanningTree::OnShutdown(const std::string& reason)
{
const TreeServer::ChildServers& children = Utils->TreeRoot->GetChildren();
while (!children.empty())
children.front()->SQuit(reason, true);
}
void ModuleSpanningTree::OnDecodeMetadata(Extensible* target, const std::string& extname, const std::string& extdata)
{
// HACK: this should use automatically synced user metadata.
if (target && target->extype == ExtensionType::USER && irc::equals(extname, "uniqueusername"))
static_cast<User*>(target)->uniqueusername = (extdata != "0");
}
Cullable::Result ModuleSpanningTree::Cull()
{
if (Utils)
Utils->Cull();
return Module::Cull();
}
ModuleSpanningTree::~ModuleSpanningTree()
{
ServerInstance->PI = &ServerInstance->DefaultProtocolInterface;
auto* newsrv = new Server(ServerInstance->Config->ServerId, ServerInstance->Config->ServerName, ServerInstance->Config->ServerDesc);
SetLocalUsersServer(newsrv);
delete Utils;
}
/* It is IMPORTANT that m_spanningtree is the last module in the chain
* so that any activity it sees is FINAL, e.g. we arent going to send out
* a NICK message before the cloak module has finished putting the +x on the user,
* etc etc.
* Therefore, we set our priority to PRIORITY_LAST to make sure we end up at the END of
* the module call queue.
*/
void ModuleSpanningTree::Prioritize()
{
ServerInstance->Modules.SetPriority(this, PRIORITY_LAST);
ServerInstance->Modules.SetPriority(this, I_OnPreTopicChange, PRIORITY_FIRST);
}
MODULE_INIT(ModuleSpanningTree)
