/*
  *
  * (C) 2003-2022 Anope Team
  * Contact us at team@anope.org
  *
  * Please read COPYING and README for further details.
  *
  * Based on the original code of Epona by Lara.
  * Based on the original code of Services by Andy Church.
  */
 
 #include "services.h"
 #include "account.h"
 #include "modules.h"
 #include "opertype.h"
 #include "protocol.h"
 #include "users.h"
 #include "servers.h"
 #include "config.h"
 
 Serialize::Checker<nickalias_map> NickAliasList("NickAlias");
 
 NickAlias::NickAlias(const Anope::string &nickname, NickCore* nickcore) : Serializable("NickAlias")
 {
 	if (nickname.empty())
 		throw CoreException("Empty nick passed to NickAlias constructor");
 	else if (!nickcore)
 		throw CoreException("Empty nickcore passed to NickAlias constructor");
 
 	this->time_registered = this->last_seen = Anope::CurTime;
 	this->nick = nickname;
 	this->nc = nickcore;
 	nickcore->aliases->push_back(this);
 
 	size_t old = NickAliasList->size();
 	(*NickAliasList)[this->nick] = this;
 	if (old == NickAliasList->size())
 		Log(LOG_DEBUG) << "Duplicate nick " << nickname << " in nickalias table";
 
 	if (this->nc->o == NULL)
 	{
 		Oper *o = Oper::Find(this->nick);
 		if (o == NULL)
 			o = Oper::Find(this->nc->display);
 		nickcore->o = o;
 		if (this->nc->o != NULL)
 			Log() << "Tied oper " << this->nc->display << " to type " << this->nc->o->ot->GetName();
 	}
 }
 
 NickAlias::~NickAlias()
 {
 	FOREACH_MOD(OnDelNick, (this));
 
 	UnsetExtensibles();
 
 	/* Accept nicks that have no core, because of database load functions */
 	if (this->nc)
 	{
 		/* Next: see if our core is still useful. */
 		std::vector<NickAlias *>::iterator it = std::find(this->nc->aliases->begin(), this->nc->aliases->end(), this);
 		if (it != this->nc->aliases->end())
 			this->nc->aliases->erase(it);
 		if (this->nc->aliases->empty())
 		{
 			delete this->nc;
 			this->nc = NULL;
 		}
 		else
 		{
 			/* Display updating stuff */
 			if (this->nick.equals_ci(this->nc->display))
 				this->nc->SetDisplay(this->nc->aliases->front());
 		}
 	}
 
 	/* Remove us from the aliases list */
 	NickAliasList->erase(this->nick);
 }
 
 void NickAlias::SetVhost(const Anope::string &ident, const Anope::string &host, const Anope::string &creator, time_t created)
 {
 	this->vhost_ident = ident;
 	this->vhost_host = host;
 	this->vhost_creator = creator;
 	this->vhost_created = created;
 }
 
 void NickAlias::RemoveVhost()
 {
 	this->vhost_ident.clear();
 	this->vhost_host.clear();
 	this->vhost_creator.clear();
 	this->vhost_created = 0;
 }
 
 bool NickAlias::HasVhost() const
 {
 	return !this->vhost_host.empty();
 }
 
 const Anope::string &NickAlias::GetVhostIdent() const
 {
 	return this->vhost_ident;
 }
 
 const Anope::string &NickAlias::GetVhostHost() const
 {
 	return this->vhost_host;
 }
 
 const Anope::string &NickAlias::GetVhostCreator() const
 {
 	return this->vhost_creator;
 }
 
 time_t NickAlias::GetVhostCreated() const
 {
 	return this->vhost_created;
 }
 
 NickAlias *NickAlias::Find(const Anope::string &nick)
 {
 	nickalias_map::const_iterator it = NickAliasList->find(nick);
 	if (it != NickAliasList->end())
 	{
 		it->second->QueueUpdate();
 		return it->second;
 	}
 
 	return NULL;
 }
 
 void NickAlias::Serialize(Serialize::Data &data) const
 {
 	data["nick"] << this->nick;
 	data["last_quit"] << this->last_quit;
 	data["last_realname"] << this->last_realname;
 	data["last_usermask"] << this->last_usermask;
 	data["last_realhost"] << this->last_realhost;
 	data.SetType("time_registered", Serialize::Data::DT_INT); data["time_registered"] << this->time_registered;
 	data.SetType("last_seen", Serialize::Data::DT_INT); data["last_seen"] << this->last_seen;
 	data["nc"] << this->nc->display;
 
 	if (this->HasVhost())
 	{
 		data["vhost_ident"] << this->GetVhostIdent();
 		data["vhost_host"] << this->GetVhostHost();
 		data["vhost_creator"] << this->GetVhostCreator();
 		data["vhost_time"] << this->GetVhostCreated();
 	}
 
 	Extensible::ExtensibleSerialize(this, this, data);
 }
 
 Serializable* NickAlias::Unserialize(Serializable *obj, Serialize::Data &data)
 {
 	Anope::string snc, snick;
 
 	data["nc"] >> snc;
 	data["nick"] >> snick;
 
 	NickCore *core = NickCore::Find(snc);
 	if (core == NULL)
 		return NULL;
 
 	NickAlias *na;
 	if (obj)
 		na = anope_dynamic_static_cast<NickAlias *>(obj);
 	else
 		na = new NickAlias(snick, core);
 
 	if (na->nc != core)
 	{
 		std::vector<NickAlias *>::iterator it = std::find(na->nc->aliases->begin(), na->nc->aliases->end(), na);
 		if (it != na->nc->aliases->end())
 			na->nc->aliases->erase(it);
 
 		if (na->nc->aliases->empty())
 			delete na->nc;
 		else if (na->nick.equals_ci(na->nc->display))
 			na->nc->SetDisplay(na->nc->aliases->front());
 
 		na->nc = core;
 		core->aliases->push_back(na);
 	}
 
 	data["last_quit"] >> na->last_quit;
 	data["last_realname"] >> na->last_realname;
 	data["last_usermask"] >> na->last_usermask;
 	data["last_realhost"] >> na->last_realhost;
 	data["time_registered"] >> na->time_registered;
 	data["last_seen"] >> na->last_seen;
 
 	Anope::string vhost_ident, vhost_host, vhost_creator;
 	time_t vhost_time;
 
 	data["vhost_ident"] >> vhost_ident;
 	data["vhost_host"] >> vhost_host;
 	data["vhost_creator"] >> vhost_creator;
 	data["vhost_time"] >> vhost_time;
 
 	na->SetVhost(vhost_ident, vhost_host, vhost_creator, vhost_time);
 
 	Extensible::ExtensibleUnserialize(na, na, data);
 
 	/* compat */
 	bool b;
 	b = false;
 	data["extensible:NO_EXPIRE"] >> b;
 	if (b)
 		na->Extend<bool>("NS_NO_EXPIRE");
 	/* end compat */
 
 	return na;
 }

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