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path: root/modules/commands/ns_identify.cpp
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/* NickServ core functions
 *
 * (C) 2003-2019 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 "module.h"

class NSIdentifyRequest : public IdentifyRequest
{
	CommandSource source;
	Command *cmd;

 public:
	NSIdentifyRequest(Module *o, CommandSource &s, Command *c, const Anope::string &acc, const Anope::string &pass) : IdentifyRequest(o, acc, pass), source(s), cmd(c) { }

	void OnSuccess() anope_override
	{
		if (!source.GetUser())
			return;

		User *u = source.GetUser();
		NickAlias *na = NickAlias::Find(GetAccount());

		if (!na)
			source.Reply(NICK_X_NOT_REGISTERED, GetAccount().c_str());
		else
		{
			if (u->IsIdentified())
				Log(LOG_COMMAND, source, cmd) << "to log out of account " << u->Account()->display;

			Log(LOG_COMMAND, source, cmd) << "and identified for account " << na->nc->display;
			source.Reply(_("Password accepted - you are now recognized."));
			u->Identify(na);
		}
	}

	void OnFail() anope_override
	{
		if (source.GetUser())
		{
			bool accountexists = NickAlias::Find(GetAccount()) != NULL;
			Log(LOG_COMMAND, source, cmd) << "and failed to identify to" << (accountexists ? " " : " nonexistent ") << "account " << GetAccount();
			if (accountexists)
			{
				source.Reply(PASSWORD_INCORRECT);
				source.GetUser()->BadPassword();
			}
			else
				source.Reply(NICK_X_NOT_REGISTERED, GetAccount().c_str());
		}
	}
};

class CommandNSIdentify : public Command
{
 public:
	CommandNSIdentify(Module *creator) : Command(creator, "nickserv/identify", 1, 2)
	{
		this->SetDesc(_("Identify yourself with your password"));
		this->SetSyntax(_("[\037account\037] \037password\037"));
		this->AllowUnregistered(true);
		this->RequireUser(true);
	}

	void Execute(CommandSource &source, const std::vector<Anope::string> &params) anope_override
	{
		User *u = source.GetUser();

		const Anope::string &nick = params.size() == 2 ? params[0] : u->nick;
		Anope::string pass = params[params.size() - 1];

		NickAlias *na = NickAlias::Find(nick);
		if (na && na->nc->HasExt("NS_SUSPENDED"))
		{
			source.Reply(NICK_X_SUSPENDED, na->nick.c_str());
			return;
		}

		if (u->Account() && na && u->Account() == na->nc)
		{
			source.Reply(_("You are already identified."));
			return;
		}

		unsigned int maxlogins = Config->GetModule(this->owner)->Get<unsigned int>("maxlogins");
		if (na && maxlogins && na->nc->users.size() >= maxlogins)
		{
			source.Reply(_("Account \002%s\002 has already reached the maximum number of simultaneous logins (%u)."), na->nc->display.c_str(), maxlogins);
			return;
		}

		NSIdentifyRequest *req = new NSIdentifyRequest(owner, source, this, na ? na->nc->display : nick, pass);
		FOREACH_MOD(OnCheckAuthentication, (u, req));
		req->Dispatch();
	}

	bool OnHelp(CommandSource &source, const Anope::string &subcommand) anope_override
	{
		this->SendSyntax(source);
		source.Reply(" ");
		source.Reply(_("Tells %s that you are really the owner of this\n"
				"nick.  Many commands require you to authenticate yourself\n"
				"with this command before you use them.  The password\n"
				"should be the same one you sent with the \002REGISTER\002\n"
				"command."), source.service->nick.c_str());
		return true;
	}
};

class NSIdentify : public Module
{
	CommandNSIdentify commandnsidentify;

 public:
	NSIdentify(const Anope::string &modname, const Anope::string &creator) : Module(modname, creator, VENDOR),
		commandnsidentify(this)
	{

	}
};

MODULE_INIT(NSIdentify)