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/*
*
* (C) 2014-2025 Anope Team
* Contact us at team@anope.org
*
* Please read COPYING and README for further details.
*/
#pragma once
namespace SASL
{
struct Message final
{
Anope::string source;
Anope::string target;
Anope::string type;
std::vector<Anope::string> data;
};
class Mechanism;
struct Session;
class Service
: public ::Service
{
public:
Service(Module *o) : ::Service(o, "SASL::Service", "sasl") { }
virtual void ProcessMessage(const Message &) = 0;
virtual Session *GetSession(const Anope::string &uid) = 0;
virtual void SendMessage(SASL::Session *session, const Anope::string &type, const Anope::string &data) = 0;
virtual void Succeed(Session *, NickCore *) = 0;
virtual void Fail(Session *) = 0;
virtual void DeleteSessions(Mechanism *, bool = false) = 0;
virtual void RemoveSession(Session *) = 0;
};
static ServiceReference<SASL::Service> service("SASL::Service", "sasl");
struct Session
{
time_t created;
Anope::string uid;
Anope::string hostname, ip;
Reference<Mechanism> mech;
Session(Mechanism *m, const Anope::string &u) : created(Anope::CurTime), uid(u), mech(m) { }
inline Anope::string GetUserInfo()
{
auto *u = User::Find(uid);
if (u)
return u->GetMask();
if (!hostname.empty() && !ip.empty())
return Anope::printf("%s (%s)", hostname.c_str(), ip.c_str());
return "A user";
};
virtual ~Session()
{
if (service)
service->RemoveSession(this);
}
};
/* PLAIN, EXTERNAL, etc */
class Mechanism
: public ::Service
{
public:
Mechanism(Module *o, const Anope::string &sname) : Service(o, "SASL::Mechanism", sname) { }
virtual Session *CreateSession(const Anope::string &uid) { return new Session(this, uid); }
virtual bool ProcessMessage(Session *session, const Message &) = 0;
virtual ~Mechanism()
{
if (service)
service->DeleteSessions(this, true);
}
};
class IdentifyRequest
: public ::IdentifyRequest
{
Anope::string uid;
Anope::string hostname;
inline Anope::string GetUserInfo()
{
auto *u = User::Find(uid);
if (u)
return u->GetMask();
if (!hostname.empty() && !GetAddress().empty())
return Anope::printf("%s (%s)", hostname.c_str(), GetAddress().c_str());
return "A user";
};
public:
IdentifyRequest(Module *m, const Anope::string &id, const Anope::string &acc, const Anope::string &pass, const Anope::string &h, const Anope::string &i)
: ::IdentifyRequest(m, acc, pass, i)
, uid(id)
, hostname(h)
{
}
void OnSuccess() override
{
if (!service)
return;
NickAlias *na = NickAlias::Find(GetAccount());
if (!na || na->nc->HasExt("NS_SUSPENDED") || na->nc->HasExt("UNCONFIRMED"))
return OnFail();
unsigned int maxlogins = Config->GetModule("ns_identify").Get<unsigned int>("maxlogins");
if (maxlogins && na->nc->users.size() >= maxlogins)
return OnFail();
Session *s = service->GetSession(uid);
if (s)
{
Log(this->GetOwner(), "sasl", Config->GetClient("NickServ")) << GetUserInfo() << " identified to account " << this->GetAccount() << " using SASL";
service->Succeed(s, na->nc);
delete s;
}
}
void OnFail() override
{
if (!service)
return;
Session *s = service->GetSession(uid);
if (s)
{
service->Fail(s);
delete s;
}
Anope::string accountstatus;
NickAlias *na = NickAlias::Find(GetAccount());
if (!na)
accountstatus = "nonexistent ";
else if (na->nc->HasExt("NS_SUSPENDED"))
accountstatus = "suspended ";
else if (na->nc->HasExt("UNCONFIRMED"))
accountstatus = "unconfirmed ";
Log(this->GetOwner(), "sasl", Config->GetClient("NickServ")) << GetUserInfo() << " failed to identify for " << accountstatus << "account " << this->GetAccount() << " using SASL";
}
};
/** Sends IRCd messages used by the SASL module. */
class ProtocolInterface
: public ::Service
{
protected:
ProtocolInterface(Module *o)
: ::Service(o, "SASL::ProtocolInterface", "sasl")
{
}
public:
/** Sends the list of SASL mechanisms to the IRCd
* @param mechs The list of SASL mechanisms.
*/
virtual void SendSASLMechanisms(std::vector<Anope::string> &mechs) { };
/** Sends a SASL message to the IRCd.
* @param message The SASL message to send.
*/
virtual void SendSASLMessage(const SASL::Message &message) = 0;
/** Sends a login or logout for \p uid to \p na.
* @param uid The uid of the user to log in.
* @param na The nick alias to log the user in as or logout if nullptr.
*/
virtual void SendSVSLogin(const Anope::string &uid, NickAlias *na) = 0;
};
static ServiceReference<SASL::ProtocolInterface> protocol_interface("SASL::ProtocolInterface", "sasl");
}
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