/* HostServ core functions
  *
  * (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 "module.h"
 
 class CommandHSSet : public Command
 {
  public:
 	CommandHSSet(Module *creator) : Command(creator, "hostserv/set", 2, 2)
 	{
 		this->SetDesc(_("Set the vhost of another user"));
 		this->SetSyntax(_("\037nick\037 \037hostmask\037"));
 	}
 
 	void Execute(CommandSource &source, const std::vector<Anope::string> &params) anope_override
 	{
 		if (Anope::ReadOnly)
 		{
 			source.Reply(READ_ONLY_MODE);
 			return;
 		}
 
 		const Anope::string &nick = params[0];
 
 		NickAlias *na = NickAlias::Find(nick);
 		if (na == NULL)
 		{
 			source.Reply(NICK_X_NOT_REGISTERED, nick.c_str());
 			return;
 		}
 
 		Anope::string rawhostmask = params[1];
 
 		Anope::string user, host;
 		size_t a = rawhostmask.find('@');
 
 		if (a == Anope::string::npos)
 			host = rawhostmask;
 		else
 		{
 			user = rawhostmask.substr(0, a);
 			host = rawhostmask.substr(a + 1);
 		}
 
 		if (host.empty())
 		{
 			this->OnSyntaxError(source, "");
 			return;
 		}
 
 		if (!user.empty())
 		{
 			if (!IRCD->CanSetVIdent)
 			{
 				source.Reply(HOST_NO_VIDENT);
 				return;
 			}
 			else if (!IRCD->IsIdentValid(user))
 			{
 				source.Reply(HOST_SET_IDENT_ERROR);
 				return;
 			}
 		}
 
 		if (host.length() > Config->GetBlock("networkinfo")->Get<unsigned>("hostlen"))
 		{
 			source.Reply(HOST_SET_TOOLONG, Config->GetBlock("networkinfo")->Get<unsigned>("hostlen"));
 			return;
 		}
 
 		if (!IRCD->IsHostValid(host))
 		{
 			source.Reply(HOST_SET_ERROR);
 			return;
 		}
 
 		Log(LOG_ADMIN, source, this) << "to set the vhost of " << na->nick << " to " << (!user.empty() ? user + "@" : "") << host;
 
 		na->SetVhost(user, host, source.GetNick());
 		FOREACH_MOD(OnSetVhost, (na));
 		if (!user.empty())
 			source.Reply(_("VHost for \002%s\002 set to \002%s\002@\002%s\002."), nick.c_str(), user.c_str(), host.c_str());
 		else
 			source.Reply(_("VHost for \002%s\002 set to \002%s\002."), nick.c_str(), host.c_str());
 	}
 
 	bool OnHelp(CommandSource &source, const Anope::string &subcommand) anope_override
 	{
 		this->SendSyntax(source);
 		source.Reply(" ");
 		source.Reply(_("Sets the vhost for the given nick to that of the given\n"
 				"hostmask.  If your IRCD supports vIdents, then using\n"
 				"SET <nick> <ident>@<hostmask> set idents for users as\n"
 				"well as vhosts."));
 		return true;
 	}
 };
 
 class CommandHSSetAll : public Command
 {
 	void Sync(const NickAlias *na)
 	{
 		if (!na || !na->HasVhost())
 			return;
 
 		for (unsigned i = 0; i < na->nc->aliases->size(); ++i)
 		{
 			NickAlias *nick = na->nc->aliases->at(i);
 			if (nick)
 				nick->SetVhost(na->GetVhostIdent(), na->GetVhostHost(), na->GetVhostCreator());
 		}
 	}
 
  public:
 	CommandHSSetAll(Module *creator) : Command(creator, "hostserv/setall", 2, 2)
 	{
 		this->SetDesc(_("Set the vhost for all nicks in a group"));
 		this->SetSyntax(_("\037nick\037 \037hostmask\037"));
 	}
 
 	void Execute(CommandSource &source, const std::vector<Anope::string> &params) anope_override
 	{
 		if (Anope::ReadOnly)
 		{
 			source.Reply(READ_ONLY_MODE);
 			return;
 		}
 
 		Anope::string nick = params[0];
 
 		NickAlias *na = NickAlias::Find(nick);
 		if (na == NULL)
 		{
 			source.Reply(NICK_X_NOT_REGISTERED, nick.c_str());
 			return;
 		}
 
 		Anope::string rawhostmask = params[1];
 
 		Anope::string user, host;
 		size_t a = rawhostmask.find('@');
 
 		if (a == Anope::string::npos)
 			host = rawhostmask;
 		else
 		{
 			user = rawhostmask.substr(0, a);
 			host = rawhostmask.substr(a + 1);
 		}
 
 		if (host.empty())
 		{
 			this->OnSyntaxError(source, "");
 			return;
 		}
 
 		if (!user.empty())
 		{
 			if (!IRCD->CanSetVIdent)
 			{
 				source.Reply(HOST_NO_VIDENT);
 				return;
 			}
 			else if (!IRCD->IsIdentValid(user))
 			{
 				source.Reply(HOST_SET_IDENT_ERROR);
 				return;
 			}
 		}
 
 		if (host.length() > Config->GetBlock("networkinfo")->Get<unsigned>("hostlen"))
 		{
 			source.Reply(HOST_SET_TOOLONG, Config->GetBlock("networkinfo")->Get<unsigned>("hostlen"));
 			return;
 		}
 
 		if (!IRCD->IsHostValid(host))
 		{
 			source.Reply(HOST_SET_ERROR);
 			return;
 		}
 
 		Log(LOG_ADMIN, source, this) << "to set the vhost of " << na->nick << " to " << (!user.empty() ? user + "@" : "") << host;
 
 		na->SetVhost(user, host, source.GetNick());
 		this->Sync(na);
 		FOREACH_MOD(OnSetVhost, (na));
 		if (!user.empty())
 			source.Reply(_("VHost for group \002%s\002 set to \002%s\002@\002%s\002."), nick.c_str(), user.c_str(), host.c_str());
 		else
 			source.Reply(_("VHost for group \002%s\002 set to \002%s\002."), nick.c_str(), host.c_str());
 	}
 
 	bool OnHelp(CommandSource &source, const Anope::string &subcommand) anope_override
 	{
 		this->SendSyntax(source);
 		source.Reply(" ");
 		source.Reply(_("Sets the vhost for all nicks in the same group as that\n"
 				"of the given nick.  If your IRCD supports vIdents, then\n"
 				"using SETALL <nick> <ident>@<hostmask> will set idents\n"
 				"for users as well as vhosts.\n"
 				"* NOTE, this will not update the vhost for any nicks\n"
 				"added to the group after this command was used."));
 		return true;
 	}
 };
 
 class HSSet : public Module
 {
 	CommandHSSet commandhsset;
 	CommandHSSetAll commandhssetall;
 
  public:
 	HSSet(const Anope::string &modname, const Anope::string &creator) : Module(modname, creator, VENDOR), commandhsset(this), commandhssetall(this)
 	{
 		if (!IRCD || !IRCD->CanSetVHost)
 			throw ModuleException("Your IRCd does not support vhosts");
 	}
 };
 
 MODULE_INIT(HSSet)

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