Rework how nickname protection works.

- Rename the command and module from kill to protect (this command
  hasn't actually killed users in a long time).
- Replace QUICK/IMMED with a duration option.

1 files changed, 168 insertions, 0 deletions

diff --git a/modules/nickserv/ns_set_protect.cpp b/modules/nickserv/ns_set_protect.cpp
new file mode 100644
index 000000000..12c995486
--- /dev/null
+++ b/modules/nickserv/ns_set_protect.cpp
@@ -0,0 +1,168 @@
+/* NickServ core functions
+ *
+ * (C) 2003-2025 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 CommandNSSetProtect
+	: public Command
+{
+public:
+	CommandNSSetProtect(Module *creator, const Anope::string &sname = "nickserv/set/protect", size_t min = 1)
+		: Command(creator, sname, min, min + 1)
+	{
+		this->SetDesc(_("Turn protection on or off"));
+		this->SetSyntax(_("{ON | \037delay\037 | OFF}"));
+	}
+
+	void Run(CommandSource &source, const Anope::string &user, const Anope::string &param)
+	{
+		if (Anope::ReadOnly)
+		{
+			source.Reply(READ_ONLY_MODE);
+			return;
+		}
+
+		if (Config->GetModule("nickserv").Get<bool>("nonicknameownership"))
+		{
+			source.Reply(_("This command may not be used on this network because nickname ownership is disabled."));
+			return;
+		}
+
+		const auto *na = NickAlias::Find(user);
+		if (!na)
+		{
+			source.Reply(NICK_X_NOT_REGISTERED, user.c_str());
+			return;
+		}
+		NickCore *nc = na->nc;
+
+		EventReturn MOD_RESULT;
+		FOREACH_RESULT(OnSetNickOption, MOD_RESULT, (source, this, nc, param));
+		if (MOD_RESULT == EVENT_STOP)
+			return;
+
+		if (param.equals_ci("ON"))
+		{
+			nc->Extend<bool>("PROTECT");
+			nc->Shrink<time_t>("PROTECT_AFTER");
+			Log(nc == source.GetAccount() ? LOG_COMMAND : LOG_ADMIN, source, this) << "to enable protection for " << nc->display;
+			source.Reply(_("Protection is now \002on\002 for \002%s\002."), nc->display.c_str());
+		}
+		else if (param.equals_ci("OFF"))
+		{
+			nc->Shrink<bool>("PROTECT");
+			nc->Shrink<time_t>("PROTECT_AFTER");
+			Log(nc == source.GetAccount() ? LOG_COMMAND : LOG_ADMIN, source, this) << "to disable protection for " << nc->display;
+			source.Reply(_("Protection is now \002off\002 for \002%s\002."), nc->display.c_str());
+		}
+		else
+		{
+			auto iparam = Anope::TryConvert<time_t>(param);
+			if (!iparam)
+			{
+				this->OnSyntaxError(source, "PROTECT");
+				return;
+			}
+
+			auto &block = Config->GetModule("nickserv");
+			auto minprotect = block.Get<time_t>("minprotect", "10s");
+			auto maxprotect = block.Get<time_t>("maxprotect", "10m");
+			if (*iparam < minprotect || *iparam > maxprotect)
+			{
+				source.Reply(_("Protection delay must be between %s and %s."),
+					Anope::Duration(minprotect, source.GetAccount()).c_str(),
+					Anope::Duration(maxprotect, source.GetAccount()).c_str());
+				return;
+			}
+
+			nc->Extend<bool>("PROTECT");
+			nc->Extend<time_t>("PROTECT_AFTER", *iparam);
+			Log(nc == source.GetAccount() ? LOG_COMMAND : LOG_ADMIN, source, this) << "to enable protection after " << *iparam << " seconds for " << nc->display;
+			source.Reply(_("Protection is now \002on\002 after \002%lu seconds\002 for \002%s\002."), *iparam, nc->display.c_str());
+		}
+	}
+
+	void Execute(CommandSource &source, const std::vector<Anope::string> &params) override
+	{
+		this->Run(source, source.nc->display, params[0]);
+	}
+
+	bool OnHelp(CommandSource &source, const Anope::string &) override
+	{
+		this->SendSyntax(source);
+		source.Reply(" ");
+		source.Reply(_("Turns automatic protection for your account on or off. With\n"
+				"protection on if another user tries to use a nickname from\n"
+				"your group they will be given some time to change their nick\n"
+				"after which %s will forcibly change their nick."), source.service->nick.c_str());
+		return true;
+	}
+};
+
+class CommandNSSASetProtect final
+	: public CommandNSSetProtect
+{
+public:
+	CommandNSSASetProtect(Module *creator)
+		: CommandNSSetProtect(creator, "nickserv/saset/protect", 2)
+	{
+		this->ClearSyntax();
+		this->SetSyntax(_("\037nickname\037 {ON | \037delay\037 | OFF}"));
+	}
+
+	void Execute(CommandSource &source, const std::vector<Anope::string> &params) override
+	{
+		this->Run(source, params[0], params[1]);
+	}
+
+	bool OnHelp(CommandSource &source, const Anope::string &) override
+	{
+		this->SendSyntax(source);
+		source.Reply(" ");
+		source.Reply(_("Turns automatic protection for the nick on or off. With\n"
+				"protection on if a user tries to use a nickname from the\n"
+				"nick's group they will be given some time to change their\n"
+				"nick after which %s will forcibly change their nick."), source.service->nick.c_str());
+		return true;
+	}
+};
+
+class NSSetProtect final
+	: public Module
+{
+private:
+	CommandNSSetProtect commandnssetprotect;
+	CommandNSSASetProtect commandnssasetprotect;
+
+	SerializableExtensibleItem<bool> protect;
+	SerializableExtensibleItem<time_t> protectafter;
+
+public:
+	NSSetProtect(const Anope::string &modname, const Anope::string &creator)
+		: Module(modname, creator, VENDOR)
+		, commandnssetprotect(this)
+		, commandnssasetprotect(this)
+		, protect(this, "PROTECT")
+		, protectafter(this, "PROTECT_AFTER")
+	{
+	}
+
+	void OnNickInfo(CommandSource &source, NickAlias *na, InfoFormatter &info, bool show_hidden) override
+	{
+		if (!show_hidden)
+			return;
+
+		if (protect.HasExt(na->nc))
+			info.AddOption(_("Protection"));
+	}
+};
+
+MODULE_INIT(NSSetProtect)